preliminary 2.6.38 support

SVN-Revision: 25057

119 files changed, 68771 insertions, 0 deletions

diff --git a/target/linux/generic/config-2.6.38 b/target/linux/generic/config-2.6.38
new file mode 100644
index 0000000000..4d7733398b
--- /dev/null
+++ b/target/linux/generic/config-2.6.38
@@ -0,0 +1,3007 @@
+CONFIG_32BIT=y
+# CONFIG_6PACK is not set
+# CONFIG_8139CP is not set
+# CONFIG_8139TOO is not set
+# CONFIG_9P_FS is not set
+# CONFIG_AB3100_CORE is not set
+# CONFIG_AB8500_CORE is not set
+# CONFIG_ABX500_CORE is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_ACENIC is not set
+# CONFIG_ACORN_PARTITION is not set
+# CONFIG_ACPI_APEI is not set
+# CONFIG_ACPI_HED is not set
+# CONFIG_ACPI_POWER_METER is not set
+# CONFIG_AD525X_DPOT is not set
+# CONFIG_ADAPTEC_STARFIRE is not set
+# CONFIG_ADFS_FS is not set
+# CONFIG_ADIS16255 is not set
+# CONFIG_ADM6996_PHY is not set
+# CONFIG_ADM8211 is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_AF_RXRPC is not set
+# CONFIG_AFS_FS is not set
+# CONFIG_AGP is not set
+CONFIG_AIO=y
+# CONFIG_AIRO_CS is not set
+# CONFIG_AIRO is not set
+# CONFIG_ALCHEMY_GPIO_INDIRECT is not set
+# CONFIG_ALIM7101_WDT is not set
+# CONFIG_AMD8111_ETH is not set
+# CONFIG_AMIGA_PARTITION is not set
+CONFIG_ANON_INODES=y
+# CONFIG_APDS9802ALS is not set
+# CONFIG_APPLICOM is not set
+# CONFIG_AR7 is not set
+# CONFIG_AR8216_PHY is not set
+# CONFIG_AR9170_USB is not set
+# CONFIG_ARCH_AAEC2000 is not set
+# CONFIG_ARCH_AT91 is not set
+# CONFIG_ARCH_BCMRING is not set
+# CONFIG_ARCH_CLPS711X is not set
+# CONFIG_ARCH_DAVINCI is not set
+# CONFIG_ARCH_DOVE is not set
+# CONFIG_ARCH_EBSA110 is not set
+# CONFIG_ARCH_EP93XX is not set
+CONFIG_ARCH_FLATMEM_ENABLE=y
+# CONFIG_ARCH_FOOTBRIDGE is not set
+# CONFIG_ARCH_GEMINI is not set
+# CONFIG_ARCH_H720X is not set
+# CONFIG_ARCH_INTEGRATOR is not set
+# CONFIG_ARCH_IOP13XX is not set
+# CONFIG_ARCH_IOP32X is not set
+# CONFIG_ARCH_IOP33X is not set
+# CONFIG_ARCH_IXP2000 is not set
+# CONFIG_ARCH_IXP23XX is not set
+# CONFIG_ARCH_IXP4XX is not set
+# CONFIG_ARCH_KIRKWOOD is not set
+# CONFIG_ARCH_KS8695 is not set
+# CONFIG_ARCH_LH7A40X is not set
+# CONFIG_ARCH_LOKI is not set
+# CONFIG_ARCH_LPC32XX is not set
+# CONFIG_ARCH_MMP is not set
+# CONFIG_ARCH_MSM is not set
+# CONFIG_ARCH_MV78XX0 is not set
+# CONFIG_ARCH_MXC is not set
+# CONFIG_ARCH_MXS is not set
+# CONFIG_ARCH_NETX is not set
+# CONFIG_ARCH_NOMADIK is not set
+# CONFIG_ARCH_NS9XXX is not set
+# CONFIG_ARCH_OMAP is not set
+# CONFIG_ARCH_ORION5X is not set
+# CONFIG_ARCH_PNX4008 is not set
+# CONFIG_ARCH_PXA is not set
+# CONFIG_ARCH_REALVIEW is not set
+# CONFIG_ARCH_RPC is not set
+# CONFIG_ARCH_S3C2410 is not set
+# CONFIG_ARCH_S3C64XX is not set
+# CONFIG_ARCH_S5P64X0 is not set
+# CONFIG_ARCH_S5PV310 is not set
+# CONFIG_ARCH_SA1100 is not set
+# CONFIG_ARCH_SHARK is not set
+# CONFIG_ARCH_STMP3XXX is not set
+# CONFIG_ARCH_TCC_926 is not set
+# CONFIG_ARCH_TEGRA is not set
+# CONFIG_ARCH_U300 is not set
+# CONFIG_ARCH_U8500 is not set
+# CONFIG_ARCH_VERSATILE is not set
+# CONFIG_ARCH_W90X900 is not set
+# CONFIG_ARCNET is not set
+# CONFIG_ARM_UNWIND is not set
+CONFIG_ARPD=y
+# CONFIG_ARTHUR is not set
+CONFIG_ASK_IP_FIB_HASH=y
+# CONFIG_ASUS_OLED is not set
+# CONFIG_ASYNC_TX_DMA is not set
+# CONFIG_AT76C50X_USB is not set
+# CONFIG_ATA_ACPI is not set
+CONFIG_ATA_BMDMA=y
+# CONFIG_ATA_GENERIC is not set
+# CONFIG_ATA is not set
+# CONFIG_ATALK is not set
+# CONFIG_ATA_NONSTANDARD is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_ATA_PIIX is not set
+# CONFIG_ATARI_PARTITION is not set
+CONFIG_ATA_SFF=y
+# CONFIG_ATA_VERBOSE_ERROR is not set
+# CONFIG_ATH5K is not set
+# CONFIG_ATH6K_LEGACY is not set
+# CONFIG_ATH9K is not set
+# CONFIG_ATL1C is not set
+# CONFIG_ATL1E is not set
+# CONFIG_ATL1 is not set
+# CONFIG_ATL2 is not set
+# CONFIG_ATM_AMBASSADOR is not set
+CONFIG_ATM_BR2684_IPFILTER=y
+# CONFIG_ATM_BR2684 is not set
+# CONFIG_ATM_CLIP is not set
+CONFIG_ATM_CLIP_NO_ICMP=y
+# CONFIG_ATM_DRIVERS is not set
+# CONFIG_ATM_DUMMY is not set
+# CONFIG_ATMEL is not set
+# CONFIG_ATM_ENI is not set
+# CONFIG_ATM_FIRESTREAM is not set
+# CONFIG_ATM_FORE200E is not set
+# CONFIG_ATM_HE is not set
+# CONFIG_ATM_HORIZON is not set
+# CONFIG_ATM_IA is not set
+# CONFIG_ATM_IDT77252 is not set
+# CONFIG_ATM is not set
+# CONFIG_ATM_LANAI is not set
+# CONFIG_ATM_LANE is not set
+# CONFIG_ATM_MPOA is not set
+# CONFIG_ATM_NICSTAR is not set
+# CONFIG_ATM_SOLOS is not set
+# CONFIG_ATM_TCP is not set
+# CONFIG_ATM_ZATM is not set
+# CONFIG_ATOMIC64_SELFTEST is not set
+# CONFIG_AUDIT is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTO_ZRELADDR is not set
+# CONFIG_AUXDISPLAY is not set
+# CONFIG_AX25_DAMA_SLAVE is not set
+# CONFIG_AX25 is not set
+# CONFIG_AX88796 is not set
+# CONFIG_B43 is not set
+# CONFIG_B43LEGACY is not set
+# CONFIG_B44 is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+# CONFIG_BACKTRACE_SELF_TEST is not set
+CONFIG_BASE_FULL=y
+CONFIG_BASE_SMALL=0
+# CONFIG_BATMAN_ADV is not set
+# CONFIG_BATTERY_BQ27x00 is not set
+# CONFIG_BATTERY_DS2760 is not set
+# CONFIG_BATTERY_DS2782 is not set
+# CONFIG_BATTERY_MAX17040 is not set
+# CONFIG_BAYCOM_EPP is not set
+# CONFIG_BAYCOM_PAR is not set
+# CONFIG_BAYCOM_SER_FDX is not set
+# CONFIG_BAYCOM_SER_HDX is not set
+# CONFIG_BCM47XX is not set
+# CONFIG_BCM63XX is not set
+# CONFIG_BCM63XX_PHY is not set
+# CONFIG_BCM_WIMAX is not set
+# CONFIG_BE2ISCSI is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_BINARY_PRINTF is not set
+# CONFIG_BINFMT_AOUT is not set
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+CONFIG_BITREVERSE=y
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_CPQ_DA is not set
+# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
+# CONFIG_BLK_DEV_4DRIVES is not set
+# CONFIG_BLK_DEV_AEC62XX is not set
+# CONFIG_BLK_DEV_ALI14XX is not set
+# CONFIG_BLK_DEV_ALI15X3 is not set
+# CONFIG_BLK_DEV_AMD74XX is not set
+# CONFIG_BLK_DEV_ATIIXP is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_BLK_DEV_CMD640 is not set
+# CONFIG_BLK_DEV_CMD64X is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+# CONFIG_BLK_DEV_CS5520 is not set
+# CONFIG_BLK_DEV_CS5530 is not set
+# CONFIG_BLK_DEV_CS5535 is not set
+# CONFIG_BLK_DEV_CS5536 is not set
+# CONFIG_BLK_DEV_CY82C693 is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_DELKIN is not set
+# CONFIG_BLK_DEV_DRBD is not set
+# CONFIG_BLK_DEV_DTC2278 is not set
+# CONFIG_BLK_DEV_FD is not set
+# CONFIG_BLK_DEV_GENERIC is not set
+# CONFIG_BLK_DEV_HD is not set
+# CONFIG_BLK_DEV_HPT366 is not set
+# CONFIG_BLK_DEV_HT6560B is not set
+# CONFIG_BLK_DEV_IDEACPI is not set
+# CONFIG_BLK_DEV_IDECD is not set
+# CONFIG_BLK_DEV_IDECS is not set
+# CONFIG_BLK_DEV_IDEPCI is not set
+# CONFIG_BLK_DEV_IDEPNP is not set
+# CONFIG_BLK_DEV_IDE_SATA is not set
+# CONFIG_BLK_DEV_IDETAPE is not set
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_BLK_DEV_INTEGRITY is not set
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_BLK_DEV_IT8172 is not set
+# CONFIG_BLK_DEV_IT8213 is not set
+# CONFIG_BLK_DEV_IT821X is not set
+# CONFIG_BLK_DEV_JMICRON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_NS87415 is not set
+# CONFIG_BLK_DEV_OFFBOARD is not set
+# CONFIG_BLK_DEV_OPTI621 is not set
+# CONFIG_BLK_DEV_PDC202XX_NEW is not set
+# CONFIG_BLK_DEV_PDC202XX_OLD is not set
+# CONFIG_BLK_DEV_PIIX is not set
+# CONFIG_BLK_DEV_PLATFORM is not set
+# CONFIG_BLK_DEV_QD65XX is not set
+# CONFIG_BLK_DEV_RAM is not set
+# CONFIG_BLK_DEV_RBD is not set
+# CONFIG_BLK_DEV_RZ1000 is not set
+# CONFIG_BLK_DEV_SC1200 is not set
+# CONFIG_BLK_DEV_SD is not set
+# CONFIG_BLK_DEV_SIIMAGE is not set
+# CONFIG_BLK_DEV_SIS5513 is not set
+# CONFIG_BLK_DEV_SL82C105 is not set
+# CONFIG_BLK_DEV_SLC90E66 is not set
+# CONFIG_BLK_DEV_SR is not set
+# CONFIG_BLK_DEV_SVWKS is not set
+# CONFIG_BLK_DEV_SX8 is not set
+# CONFIG_BLK_DEV_TC86C001 is not set
+# CONFIG_BLK_DEV_TRIFLEX is not set
+# CONFIG_BLK_DEV_TRM290 is not set
+# CONFIG_BLK_DEV_UB is not set
+# CONFIG_BLK_DEV_UMC8672 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_VIA82CXXX is not set
+# CONFIG_BLK_DEV_XIP is not set
+CONFIG_BLK_DEV=y
+CONFIG_BLOCK=y
+# CONFIG_BMP085 is not set
+# CONFIG_BNX2 is not set
+# CONFIG_BONDING is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_BPQETHER is not set
+# CONFIG_BRCM80211 is not set
+# CONFIG_BRIDGE_EBT_802_3 is not set
+# CONFIG_BRIDGE_EBT_AMONG is not set
+# CONFIG_BRIDGE_EBT_ARP is not set
+# CONFIG_BRIDGE_EBT_ARPREPLY is not set
+# CONFIG_BRIDGE_EBT_BROUTE is not set
+# CONFIG_BRIDGE_EBT_DNAT is not set
+# CONFIG_BRIDGE_EBT_IP6 is not set
+# CONFIG_BRIDGE_EBT_IP is not set
+# CONFIG_BRIDGE_EBT_LIMIT is not set
+# CONFIG_BRIDGE_EBT_LOG is not set
+# CONFIG_BRIDGE_EBT_MARK is not set
+# CONFIG_BRIDGE_EBT_MARK_T is not set
+# CONFIG_BRIDGE_EBT_NFLOG is not set
+# CONFIG_BRIDGE_EBT_PKTTYPE is not set
+# CONFIG_BRIDGE_EBT_REDIRECT is not set
+# CONFIG_BRIDGE_EBT_SNAT is not set
+# CONFIG_BRIDGE_EBT_STP is not set
+# CONFIG_BRIDGE_EBT_T_FILTER is not set
+# CONFIG_BRIDGE_EBT_T_NAT is not set
+# CONFIG_BRIDGE_EBT_ULOG is not set
+# CONFIG_BRIDGE_EBT_VLAN is not set
+CONFIG_BRIDGE_IGMP_SNOOPING=y
+# CONFIG_BRIDGE_NETFILTER is not set
+# CONFIG_BRIDGE_NF_EBTABLES is not set
+CONFIG_BRIDGE=y
+# CONFIG_BROADCOM_PHY is not set
+CONFIG_BROKEN_ON_SMP=y
+# CONFIG_BSD_DISKLABEL is not set
+# CONFIG_BSD_PROCESS_ACCT_V3 is not set
+CONFIG_BSD_PROCESS_ACCT=y
+# CONFIG_BT_ATH3K is not set
+# CONFIG_BT_BNEP is not set
+CONFIG_BT_BNEP_MC_FILTER=y
+CONFIG_BT_BNEP_PROTO_FILTER=y
+# CONFIG_BT_CMTP is not set
+# CONFIG_BT_HCIBCM203X is not set
+# CONFIG_BT_HCIBFUSB is not set
+# CONFIG_BT_HCIBLUECARD is not set
+# CONFIG_BT_HCIBPA10X is not set
+# CONFIG_BT_HCIBT3C is not set
+# CONFIG_BT_HCIBTSDIO is not set
+# CONFIG_BT_HCIBTUART is not set
+# CONFIG_BT_HCIBTUSB is not set
+# CONFIG_BT_HCIDTL1 is not set
+# CONFIG_BT_HCIUART_ATH3K is not set
+CONFIG_BT_HCIUART_BCSP=y
+CONFIG_BT_HCIUART_H4=y
+# CONFIG_BT_HCIUART is not set
+# CONFIG_BT_HCIUART_LL is not set
+# CONFIG_BT_HCIVHCI is not set
+# CONFIG_BT_HIDP is not set
+# CONFIG_BT is not set
+# CONFIG_BT_L2CAP is not set
+# CONFIG_BT_MRVL is not set
+# CONFIG_BT_RFCOMM is not set
+CONFIG_BT_RFCOMM_TTY=y
+# CONFIG_BTRFS_FS is not set
+# CONFIG_BT_SCO is not set
+CONFIG_BUG=y
+# CONFIG_C2PORT is not set
+# CONFIG_CAIF is not set
+# CONFIG_CAN is not set
+# CONFIG_CAPI_AVM is not set
+# CONFIG_CAPI_EICON is not set
+# CONFIG_CAPI_TRACE is not set
+CONFIG_CARDBUS=y
+# CONFIG_CARDMAN_4000 is not set
+# CONFIG_CARDMAN_4040 is not set
+# CONFIG_CASSINI is not set
+CONFIG_CAVIUM_OCTEON_HELPER=y
+# CONFIG_CAVIUM_OCTEON_REFERENCE_BOARD is not set
+# CONFIG_CAVIUM_OCTEON_SIMULATOR is not set
+# CONFIG_CB710_CORE is not set
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+# CONFIG_CC_STACKPROTECTOR is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_CEPH_FS is not set
+# CONFIG_CEPH_LIB is not set
+# CONFIG_CFG80211 is not set
+# CONFIG_CGROUPS is not set
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
+# CONFIG_CHELSIO_T4 is not set
+# CONFIG_CHR_DEV_OSST is not set
+# CONFIG_CHR_DEV_SCH is not set
+# CONFIG_CHR_DEV_SG is not set
+# CONFIG_CHR_DEV_ST is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_CIFS_DEBUG2 is not set
+# CONFIG_CIFS_EXPERIMENTAL is not set
+# CONFIG_CIFS is not set
+CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_STATS2 is not set
+CONFIG_CIFS_STATS=y
+# CONFIG_CIFS_WEAK_PW_HASH is not set
+# CONFIG_CIFS_XATTR is not set
+CONFIG_CLS_U32_MARK=y
+CONFIG_CLS_U32_PERF=y
+CONFIG_CMDLINE=""
+# CONFIG_CMDLINE_BOOL is not set
+# CONFIG_CMDLINE_FORCE is not set
+# CONFIG_CNIC is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_COMEDI is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_CONFIGFS_FS is not set
+# CONFIG_CONNECTOR is not set
+CONFIG_CONSTRUCTORS=y
+# CONFIG_CONTEXT_SWITCH_TRACER is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_CPU_DCACHE_DISABLE is not set
+# CONFIG_CPU_FREQ is not set
+# CONFIG_CPU_IDLE is not set
+# CONFIG_CRAMFS is not set
+# CONFIG_CRASH_DUMP is not set
+CONFIG_CRASHLOG=y
+# CONFIG_CRC16 is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC_ITU_T is not set
+# CONFIG_CRC_T10DIF is not set
+CONFIG_CROSS_COMPILE=""
+# CONFIG_CRYPTO_AEAD is not set
+# CONFIG_CRYPTO_AES_586 is not set
+# CONFIG_CRYPTO_AES is not set
+CONFIG_CRYPTO_ALGAPI2=y
+CONFIG_CRYPTO_ALGAPI=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_BLKCIPHER is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_CBC is not set
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_CRC32C_INTEL is not set
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_CTS is not set
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_DEV_HIFN_795X is not set
+# CONFIG_CRYPTO_DEV_MV_CESA is not set
+# CONFIG_CRYPTO_DEV_TALITOS is not set
+# CONFIG_CRYPTO_ECB is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_FIPS is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL is not set
+# CONFIG_CRYPTO_GHASH is not set
+# CONFIG_CRYPTO_HASH is not set
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_HW is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_LZO is not set
+# CONFIG_CRYPTO_MANAGER2 is not set
+CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
+# CONFIG_CRYPTO_MANAGER is not set
+CONFIG_CRYPTO_MANAGER_NO_TESTS=y
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_PCBC is not set
+CONFIG_CRYPTO_PCOMP2=y
+CONFIG_CRYPTO_PCOMP=y
+# CONFIG_CRYPTO_PCRYPT is not set
+# CONFIG_CRYPTO_RMD128 is not set
+# CONFIG_CRYPTO_RMD160 is not set
+# CONFIG_CRYPTO_RMD256 is not set
+# CONFIG_CRYPTO_RMD320 is not set
+# CONFIG_CRYPTO_RNG is not set
+# CONFIG_CRYPTO_SALSA20_586 is not set
+# CONFIG_CRYPTO_SALSA20 is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_SEQIV is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_TEST is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_TWOFISH_586 is not set
+# CONFIG_CRYPTO_TWOFISH_COMMON is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+# CONFIG_CRYPTO_USER_API_HASH is not set
+# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
+# CONFIG_CRYPTO_VMAC is not set
+# CONFIG_CRYPTO_WP512 is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_XTS is not set
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_ZLIB=y
+# CONFIG_CRYSTALHD is not set
+# CONFIG_CS5535_MFGPT is not set
+# CONFIG_CUSE is not set
+# CONFIG_CXT1E1 is not set
+# CONFIG_DAB is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_DCB is not set
+# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_DEBUG_CREDENTIALS is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_ERRORS is not set
+# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_DEBUG_GPIO is not set
+# CONFIG_DEBUG_ICEDCC is not set
+# CONFIG_DEBUG_INFO is not set
+CONFIG_DEBUG_INFO_REDUCED=y
+# CONFIG_DEBUG_KERNEL is not set
+# CONFIG_DEBUG_KMEMLEAK is not set
+# CONFIG_DEBUG_KOBJECT is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_LL is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_MEMORY_INIT is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_NOTIFIERS is not set
+# CONFIG_DEBUG_OBJECTS is not set
+# CONFIG_DEBUG_PREEMPT is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_DEBUG_SG is not set
+# CONFIG_DEBUG_SHIRQ is not set
+# CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_STACK_USAGE is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_WRITECOUNT is not set
+# CONFIG_DECNET is not set
+CONFIG_DECOMPRESS_LZMA_NEEDED=y
+CONFIG_DEFAULT_DEADLINE=y
+CONFIG_DEFAULT_IOSCHED="deadline"
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
+# CONFIG_DEFAULT_NOOP is not set
+# CONFIG_DEFAULT_RENO is not set
+CONFIG_DEFAULT_SECURITY=""
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_DEFAULT_TCP_CONG="westwood"
+CONFIG_DEFAULT_WESTWOOD=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+# CONFIG_DEPRECATED_PARAM_STRUCT is not set
+# CONFIG_DETECT_HUNG_TASK is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_DEVPORT=y
+# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
+# CONFIG_DEVTMPFS is not set
+# CONFIG_DEVTMPFS_MOUNT is not set
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_DISPLAY_SUPPORT is not set
+# CONFIG_DL2K is not set
+# CONFIG_DLM is not set
+# CONFIG_DM9000 is not set
+# CONFIG_DMA_API_DEBUG is not set
+# CONFIG_DMADEVICES is not set
+# CONFIG_DMA_ENGINE is not set
+# CONFIG_DMASCC is not set
+# CONFIG_DMATEST is not set
+# CONFIG_DM_LOG_USERSPACE is not set
+# CONFIG_DM_RAID is not set
+# CONFIG_DNET is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_DRAGONRISE_FF is not set
+# CONFIG_DRM is not set
+# CONFIG_DS1682 is not set
+# CONFIG_DTLK is not set
+# CONFIG_DUMMY is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_DX_SEP is not set
+# CONFIG_DYNAMIC_DEBUG is not set
+# CONFIG_E1000E is not set
+# CONFIG_E1000 is not set
+# CONFIG_E100 is not set
+# CONFIG_EASYCAP is not set
+# CONFIG_ECHO is not set
+# CONFIG_ECONET is not set
+# CONFIG_EDAC is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_EEPROM_AT24 is not set
+# CONFIG_EEPROM_AT25 is not set
+# CONFIG_EEPROM_LEGACY is not set
+# CONFIG_EEPROM_MAX6875 is not set
+# CONFIG_EFI_PARTITION is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_ELF_CORE is not set
+CONFIG_EMBEDDED=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+# CONFIG_ENC28J60 is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_EPIC100 is not set
+CONFIG_EPOLL=y
+# CONFIG_EQUALIZER is not set
+# CONFIG_ET131X is not set
+# CONFIG_ETHOC is not set
+CONFIG_EVENTFD=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_EXPORTFS is not set
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT3_FS_XATTR is not set
+# CONFIG_EXT4_DEBUG is not set
+# CONFIG_EXT4_FS is not set
+# CONFIG_EXT4_FS_SECURITY is not set
+# CONFIG_EXT4_FS_XATTR is not set
+CONFIG_EXT4_USE_FOR_EXT23=y
+CONFIG_EXTRA_FIRMWARE=""
+CONFIG_EXTRA_TARGETS=""
+# CONFIG_EZX_PCAP is not set
+# CONFIG_FAIR_GROUP_SCHED is not set
+# CONFIG_FANOTIFY is not set
+CONFIG_FAT_DEFAULT_CODEPAGE=437
+CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
+# CONFIG_FAT_FS is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_FB_3DFX is not set
+# CONFIG_FB_ARC is not set
+# CONFIG_FB_ARK is not set
+# CONFIG_FB_ASILIANT is not set
+# CONFIG_FB_ATY128 is not set
+# CONFIG_FB_ATY is not set
+# CONFIG_FB_BACKLIGHT is not set
+# CONFIG_FB_BOOT_VESA_SUPPORT is not set
+# CONFIG_FB_BROADSHEET is not set
+# CONFIG_FB_CARMINE is not set
+# CONFIG_FB_CFB_COPYAREA is not set
+# CONFIG_FB_CFB_FILLRECT is not set
+# CONFIG_FB_CFB_IMAGEBLIT is not set
+# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set
+# CONFIG_FB_CIRRUS is not set
+# CONFIG_FB_CYBER2000 is not set
+# CONFIG_FB_DDC is not set
+# CONFIG_FB_FOREIGN_ENDIAN is not set
+# CONFIG_FB_GEODE is not set
+# CONFIG_FB_HGA is not set
+# CONFIG_FB_IBM_GXT4500 is not set
+# CONFIG_FB_IMSTT is not set
+# CONFIG_FB is not set
+# CONFIG_FB_KYRO is not set
+# CONFIG_FB_LE80578 is not set
+# CONFIG_FB_MACMODES is not set
+# CONFIG_FB_MATROX is not set
+# CONFIG_FB_MB862XX is not set
+# CONFIG_FB_METRONOME is not set
+# CONFIG_FB_MODE_HELPERS is not set
+# CONFIG_FB_N411 is not set
+# CONFIG_FB_NEOMAGIC is not set
+# CONFIG_FB_NVIDIA is not set
+# CONFIG_FB_OF is not set
+# CONFIG_FB_PM2 is not set
+# CONFIG_FB_PM3 is not set
+# CONFIG_FB_PS3 is not set
+# CONFIG_FB_PXA is not set
+# CONFIG_FB_RADEON is not set
+# CONFIG_FB_RIVA is not set
+# CONFIG_FB_S1D13XXX is not set
+# CONFIG_FB_S3 is not set
+# CONFIG_FB_SAVAGE is not set
+# CONFIG_FB_SIS is not set
+# CONFIG_FB_SVGALIB is not set
+# CONFIG_FB_SYS_COPYAREA is not set
+# CONFIG_FB_SYS_FILLRECT is not set
+# CONFIG_FB_SYS_FOPS is not set
+# CONFIG_FB_SYS_IMAGEBLIT is not set
+# CONFIG_FB_TILEBLITTING is not set
+# CONFIG_FB_TRIDENT is not set
+# CONFIG_FB_UDL is not set
+# CONFIG_FB_VGA16 is not set
+# CONFIG_FB_VIA is not set
+# CONFIG_FB_VIRTUAL is not set
+# CONFIG_FB_VOODOO1 is not set
+# CONFIG_FB_VT8623 is not set
+# CONFIG_FCOE_FNIC is not set
+# CONFIG_FCOE is not set
+# CONFIG_FDDI is not set
+# CONFIG_FEALNX is not set
+CONFIG_FIB_RULES=y
+CONFIG_FILE_LOCKING=y
+# CONFIG_FIREWIRE is not set
+# CONFIG_FIREWIRE_NOSY is not set
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+# CONFIG_FIXED_PHY is not set
+CONFIG_FLATMEM_MANUAL=y
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_FORCEDETH is not set
+CONFIG_FORCE_MAX_ZONEORDER=11
+# CONFIG_FRAMEBUFFER_CONSOLE is not set
+CONFIG_FRAME_WARN=1024
+# CONFIG_FREEZER is not set
+# CONFIG_FSCACHE is not set
+CONFIG_FSNOTIFY=y
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_FT1000 is not set
+# CONFIG_FTL is not set
+# CONFIG_FTRACE is not set
+# CONFIG_FTRACE_STARTUP_TEST is not set
+# CONFIG_FUNCTION_TRACER is not set
+# CONFIG_FUSE_FS is not set
+# CONFIG_FUSION_FC is not set
+# CONFIG_FUSION is not set
+# CONFIG_FUSION_SAS is not set
+# CONFIG_FUSION_SPI is not set
+CONFIG_FUTEX=y
+CONFIG_FW_LOADER=y
+CONFIG_GACT_PROB=y
+# CONFIG_GAMEPORT is not set
+# CONFIG_GCOV_KERNEL is not set
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_IRQ_PROBE=y
+CONFIG_GENERIC_TIME=y
+# CONFIG_GFS2_FS is not set
+# CONFIG_GIGASET_CAPI is not set
+# CONFIG_GIGASET_DEBUG is not set
+# CONFIG_GPIO_74X164 is not set
+# CONFIG_GPIO_ADP5588 is not set
+# CONFIG_GPIO_BASIC_MMIO is not set
+# CONFIG_GPIO_BT8XX is not set
+# CONFIG_GPIO_CS5535 is not set
+# CONFIG_GPIO_DEVICE is not set
+# CONFIG_GPIO_IT8761E is not set
+# CONFIG_GPIO_LANGWELL is not set
+# CONFIG_GPIOLIB is not set
+# CONFIG_GPIO_MAX7300 is not set
+# CONFIG_GPIO_MAX7301 is not set
+# CONFIG_GPIO_MAX732X is not set
+# CONFIG_GPIO_MC33880 is not set
+# CONFIG_GPIO_MCP23S08 is not set
+# CONFIG_GPIO_ML_IOH is not set
+# CONFIG_GPIO_PCA953X is not set
+# CONFIG_GPIO_PCF857X is not set
+# CONFIG_GPIO_PCH is not set
+# CONFIG_GPIO_RDC321X is not set
+# CONFIG_GPIO_SCH is not set
+# CONFIG_GPIO_SX150X is not set
+# CONFIG_GPIO_SYSFS is not set
+# CONFIG_GPIO_VX855 is not set
+# CONFIG_GPIO_XILINX is not set
+# CONFIG_GREENASIA_FF is not set
+# CONFIG_HAMACHI is not set
+CONFIG_HAMRADIO=y
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_HARDLOCKUP_DETECTOR is not set
+# CONFIG_HAVE_AOUT is not set
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+# CONFIG_HCALL_STATS is not set
+# CONFIG_HDLC_CISCO is not set
+# CONFIG_HDLC_FR is not set
+# CONFIG_HDLC is not set
+# CONFIG_HDLC_PPP is not set
+# CONFIG_HDLC_RAW_ETH is not set
+# CONFIG_HDLC_RAW is not set
+# CONFIG_HEADERS_CHECK is not set
+# CONFIG_HERMES is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_HID_3M_PCT is not set
+# CONFIG_HID_A4TECH is not set
+# CONFIG_HID_ACRUX_FF is not set
+# CONFIG_HID_APPLE is not set
+# CONFIG_HID_BELKIN is not set
+# CONFIG_HID_CANDO is not set
+# CONFIG_HID_CHERRY is not set
+# CONFIG_HID_CHICONY is not set
+# CONFIG_HID_CYPRESS is not set
+# CONFIG_HID_DRAGONRISE is not set
+# CONFIG_HID_EGALAX is not set
+# CONFIG_HID_ELECOM is not set
+# CONFIG_HID_EZKEY is not set
+# CONFIG_HID_GREENASIA is not set
+# CONFIG_HID_GYRATION is not set
+# CONFIG_HID is not set
+# CONFIG_HID_KENSINGTON is not set
+# CONFIG_HID_KYE is not set
+# CONFIG_HID_LOGITECH is not set
+# CONFIG_HID_MAGICMOUSE is not set
+# CONFIG_HID_MICROSOFT is not set
+# CONFIG_HID_MONTEREY is not set
+# CONFIG_HID_MOSART is not set
+# CONFIG_HID_NTRIG is not set
+# CONFIG_HID_ORTEK is not set
+# CONFIG_HID_PANTHERLORD is not set
+# CONFIG_HID_PETALYNX is not set
+# CONFIG_HID_PICOLCD is not set
+# CONFIG_HID_PID is not set
+# CONFIG_HID_PRODIKEYS is not set
+# CONFIG_HID_QUANTA is not set
+# CONFIG_HIDRAW is not set
+# CONFIG_HID_ROCCAT is not set
+# CONFIG_HID_ROCCAT_KONE is not set
+# CONFIG_HID_ROCCAT_PYRA is not set
+# CONFIG_HID_SAMSUNG is not set
+# CONFIG_HID_SMARTJOYPLUS is not set
+# CONFIG_HID_SONY is not set
+# CONFIG_HID_STANTUM is not set
+# CONFIG_HID_SUNPLUS is not set
+# CONFIG_HID_SUPPORT is not set
+# CONFIG_HID_THRUSTMASTER is not set
+# CONFIG_HID_TOPSEED is not set
+# CONFIG_HID_TWINHAN is not set
+# CONFIG_HID_UCLOGIC is not set
+# CONFIG_HID_WACOM is not set
+# CONFIG_HID_WALTOP is not set
+# CONFIG_HID_ZEROPLUS is not set
+# CONFIG_HID_ZYDACRON is not set
+# CONFIG_HIGHMEM is not set
+CONFIG_HIGH_RES_TIMERS=y
+# CONFIG_HIPPI is not set
+# CONFIG_HMC6352 is not set
+# CONFIG_HOSTAP_CS is not set
+# CONFIG_HOSTAP is not set
+# CONFIG_HOSTAP_PCI is not set
+# CONFIG_HOSTAP_PLX is not set
+# CONFIG_HOTPLUG_CPU is not set
+# CONFIG_HOTPLUG_PCI is not set
+CONFIG_HOTPLUG=y
+# CONFIG_HP100 is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_HP_ILO is not set
+# CONFIG_HTC_EGPIO is not set
+# CONFIG_HTC_I2CPLD is not set
+# CONFIG_HTC_PASIC3 is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_HVC_DCC is not set
+# CONFIG_HVC_UDBG is not set
+# CONFIG_HWMON is not set
+# CONFIG_HWMON_VID is not set
+# CONFIG_HW_RANDOM_AMD is not set
+# CONFIG_HW_RANDOM_GEODE is not set
+# CONFIG_HW_RANDOM_INTEL is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HW_RANDOM_TIMERIOMEM is not set
+# CONFIG_HW_RANDOM_VIA is not set
+# CONFIG_HYPERV is not set
+# CONFIG_HYSDN is not set
+CONFIG_HZ=100
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ_100=y
+# CONFIG_HZ_1024 is not set
+# CONFIG_HZ_128 is not set
+# CONFIG_HZ_250 is not set
+# CONFIG_HZ_256 is not set
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_48 is not set
+# CONFIG_I2C_ALGOBIT is not set
+# CONFIG_I2C_ALGOPCA is not set
+# CONFIG_I2C_ALGOPCF is not set
+# CONFIG_I2C_ALI1535 is not set
+# CONFIG_I2C_ALI1563 is not set
+# CONFIG_I2C_ALI15X3 is not set
+# CONFIG_I2C_AMD756 is not set
+# CONFIG_I2C_AMD8111 is not set
+# CONFIG_I2C_CHARDEV is not set
+# CONFIG_I2C_COMPAT is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DESIGNWARE is not set
+# CONFIG_I2C_EG20T is not set
+# CONFIG_I2C_ELEKTOR is not set
+# CONFIG_I2C_GPIO is not set
+# CONFIG_I2C_HELPER_AUTO is not set
+# CONFIG_I2C_I801 is not set
+# CONFIG_I2C_IBM_IIC is not set
+# CONFIG_I2C_INTEL_MID is not set
+# CONFIG_I2C_ISCH is not set
+# CONFIG_I2C is not set
+# CONFIG_I2C_MPC is not set
+# CONFIG_I2C_MUX is not set
+# CONFIG_I2C_NFORCE2 is not set
+# CONFIG_I2C_OCORES is not set
+# CONFIG_I2C_PARPORT is not set
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_PCA_ISA is not set
+# CONFIG_I2C_PCA_PLATFORM is not set
+# CONFIG_I2C_PIIX4 is not set
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_SIS5595 is not set
+# CONFIG_I2C_SIS630 is not set
+# CONFIG_I2C_SIS96X is not set
+# CONFIG_I2C_SMBUS is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_TAOS_EVM is not set
+# CONFIG_I2C_TINY_USB is not set
+# CONFIG_I2C_VIA is not set
+# CONFIG_I2C_VIAPRO is not set
+# CONFIG_I2C_XILINX is not set
+# CONFIG_I2O is not set
+# CONFIG_I82092 is not set
+# CONFIG_I82365 is not set
+# CONFIG_IBM_ASM is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
+# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
+# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_ICS932S401 is not set
+# CONFIG_IDE_GD is not set
+# CONFIG_IDE is not set
+# CONFIG_IDE_PHISON is not set
+CONFIG_IDE_PROC_FS=y
+# CONFIG_IDE_TASK_IOCTL is not set
+# CONFIG_IEEE1394_DV1394 is not set
+# CONFIG_IEEE1394_ETH1394 is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_IEEE1394_OHCI1394 is not set
+# CONFIG_IEEE1394_PCILYNX is not set
+# CONFIG_IEEE1394_RAWIO is not set
+# CONFIG_IEEE1394_VERBOSEDEBUG is not set
+# CONFIG_IEEE1394_VIDEO1394 is not set
+# CONFIG_IEEE802154 is not set
+# CONFIG_IFB is not set
+# CONFIG_IGB is not set
+# CONFIG_IGBVF is not set
+# CONFIG_IIO is not set
+# CONFIG_IKCONFIG is not set
+# CONFIG_IKCONFIG_PROC is not set
+# CONFIG_IMAGE_CMDLINE_HACK is not set
+# CONFIG_IMQ_BEHAVIOR_AA is not set
+# CONFIG_IMQ_BEHAVIOR_AB is not set
+# CONFIG_IMQ_BEHAVIOR_BA is not set
+# CONFIG_IMQ_BEHAVIOR_BB is not set
+# CONFIG_IMQ is not set
+CONFIG_IMQ_NUM_DEVS=2
+# CONFIG_INET6_AH is not set
+# CONFIG_INET6_ESP is not set
+# CONFIG_INET6_IPCOMP is not set
+# CONFIG_INET6_TUNNEL is not set
+# CONFIG_INET6_XFRM_MODE_BEET is not set
+# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET6_XFRM_TUNNEL is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_TCP_DIAG is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+CONFIG_INET=y
+# CONFIG_INFINIBAND is not set
+# CONFIG_INFTL is not set
+CONFIG_INIT_ENV_ARG_LIMIT=32
+# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set
+# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set
+# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set
+CONFIG_INITRAMFS_COMPRESSION_NONE=y
+# CONFIG_INLINE_READ_LOCK_BH is not set
+# CONFIG_INLINE_READ_LOCK_IRQ is not set
+# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
+# CONFIG_INLINE_READ_LOCK is not set
+# CONFIG_INLINE_READ_TRYLOCK is not set
+# CONFIG_INLINE_READ_UNLOCK_BH is not set
+# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
+CONFIG_INLINE_READ_UNLOCK_IRQ=y
+CONFIG_INLINE_READ_UNLOCK=y
+# CONFIG_INLINE_SPIN_LOCK_BH is not set
+# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
+# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
+# CONFIG_INLINE_SPIN_LOCK is not set
+# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
+# CONFIG_INLINE_SPIN_TRYLOCK is not set
+# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
+# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
+CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
+CONFIG_INLINE_SPIN_UNLOCK=y
+# CONFIG_INLINE_WRITE_LOCK_BH is not set
+# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
+# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
+# CONFIG_INLINE_WRITE_LOCK is not set
+# CONFIG_INLINE_WRITE_TRYLOCK is not set
+# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
+# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
+CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
+CONFIG_INLINE_WRITE_UNLOCK=y
+# CONFIG_INOTIFY_USER is not set
+# CONFIG_INPUT_AD714X is not set
+# CONFIG_INPUT_ADXL34X is not set
+# CONFIG_INPUT_APANEL is not set
+# CONFIG_INPUT_ATI_REMOTE2 is not set
+# CONFIG_INPUT_ATI_REMOTE is not set
+# CONFIG_INPUT_ATLAS_BTNS is not set
+# CONFIG_INPUT_CM109 is not set
+# CONFIG_INPUT_EVBUG is not set
+# CONFIG_INPUT_EVDEV is not set
+# CONFIG_INPUT_FF_MEMLESS is not set
+# CONFIG_INPUT_GPIO is not set
+# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
+# CONFIG_INPUT is not set
+# CONFIG_INPUT_JOYDEV is not set
+# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_KEYSPAN_REMOTE is not set
+CONFIG_INPUT_MISC=y
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_INPUT_PCF8574 is not set
+# CONFIG_INPUT_PCSPKR is not set
+# CONFIG_INPUT_POLLDEV is not set
+# CONFIG_INPUT_POWERMATE is not set
+# CONFIG_INPUT_SPARSEKMAP is not set
+# CONFIG_INPUT_TABLET is not set
+# CONFIG_INPUT_TOUCHSCREEN is not set
+# CONFIG_INPUT_UINPUT is not set
+# CONFIG_INPUT_WINBOND_CIR is not set
+# CONFIG_INPUT_WISTRON_BTNS is not set
+# CONFIG_INPUT_YEALINK is not set
+# CONFIG_INTEL_IDLE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_NOOP=y
+# CONFIG_IP1000 is not set
+# CONFIG_IP17XX_PHY is not set
+# CONFIG_IP6_NF_FILTER is not set
+# CONFIG_IP6_NF_IPTABLES is not set
+# CONFIG_IP6_NF_MANGLE is not set
+# CONFIG_IP6_NF_MATCH_AH is not set
+# CONFIG_IP6_NF_MATCH_EUI64 is not set
+# CONFIG_IP6_NF_MATCH_FRAG is not set
+# CONFIG_IP6_NF_MATCH_HL is not set
+# CONFIG_IP6_NF_MATCH_IPV6HEADER is not set
+# CONFIG_IP6_NF_MATCH_MH is not set
+# CONFIG_IP6_NF_MATCH_OPTS is not set
+# CONFIG_IP6_NF_MATCH_RT is not set
+# CONFIG_IP6_NF_QUEUE is not set
+# CONFIG_IP6_NF_RAW is not set
+# CONFIG_IP6_NF_TARGET_HL is not set
+# CONFIG_IP6_NF_TARGET_LOG is not set
+# CONFIG_IP6_NF_TARGET_REJECT is not set
+CONFIG_IP_ADVANCED_ROUTER=y
+# CONFIG_IPC_NS is not set
+# CONFIG_IP_DCCP is not set
+CONFIG_IP_FIB_HASH=y
+# CONFIG_IP_FIB_TRIE is not set
+# CONFIG_IPMI_HANDLER is not set
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+# CONFIG_IP_NF_ARPFILTER is not set
+# CONFIG_IP_NF_ARP_MANGLE is not set
+# CONFIG_IP_NF_ARPTABLES is not set
+# CONFIG_IP_NF_FILTER is not set
+# CONFIG_IP_NF_IPTABLES is not set
+# CONFIG_IP_NF_MANGLE is not set
+# CONFIG_IP_NF_MATCH_ADDRTYPE is not set
+# CONFIG_IP_NF_MATCH_AH is not set
+# CONFIG_IP_NF_MATCH_ECN is not set
+# CONFIG_IP_NF_MATCH_TTL is not set
+# CONFIG_IP_NF_QUEUE is not set
+# CONFIG_IP_NF_RAW is not set
+# CONFIG_IP_NF_SECURITY is not set
+# CONFIG_IP_NF_TARGET_CLUSTERIP is not set
+# CONFIG_IP_NF_TARGET_ECN is not set
+# CONFIG_IP_NF_TARGET_LOG is not set
+# CONFIG_IP_NF_TARGET_MASQUERADE is not set
+# CONFIG_IP_NF_TARGET_NETMAP is not set
+# CONFIG_IP_NF_TARGET_REDIRECT is not set
+# CONFIG_IP_NF_TARGET_REJECT is not set
+# CONFIG_IP_NF_TARGET_TTL is not set
+# CONFIG_IP_NF_TARGET_ULOG is not set
+# CONFIG_IP_PIMSM_V1 is not set
+# CONFIG_IP_PIMSM_V2 is not set
+# CONFIG_IP_PNP is not set
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+# CONFIG_IP_SCTP is not set
+# CONFIG_IPV6 is not set
+# CONFIG_IPV6_MIP6 is not set
+# CONFIG_IPV6_MROUTE is not set
+# CONFIG_IPV6_MROUTE_MULTIPLE_TABLES is not set
+# CONFIG_IPV6_MULTIPLE_TABLES is not set
+CONFIG_IPV6_NDISC_NODETYPE=y
+# CONFIG_IPV6_OPTIMISTIC_DAD is not set
+# CONFIG_IPV6_PRIVACY is not set
+# CONFIG_IPV6_ROUTE_INFO is not set
+# CONFIG_IPV6_ROUTER_PREF is not set
+# CONFIG_IPV6_SIT_6RD is not set
+# CONFIG_IPV6_SIT is not set
+# CONFIG_IPV6_TUNNEL is not set
+# CONFIG_IP_VS is not set
+# CONFIG_IPW2100_DEBUG is not set
+# CONFIG_IPW2100 is not set
+CONFIG_IPW2100_MONITOR=y
+# CONFIG_IPW2200_DEBUG is not set
+# CONFIG_IPW2200 is not set
+CONFIG_IPW2200_MONITOR=y
+# CONFIG_IPW2200_PROMISCUOUS is not set
+# CONFIG_IPW2200_QOS is not set
+# CONFIG_IPW2200_RADIOTAP is not set
+# CONFIG_IPWIRELESS is not set
+# CONFIG_IPX is not set
+# CONFIG_IR_CORE is not set
+# CONFIG_IRDA is not set
+# CONFIG_IR_IMON is not set
+# CONFIG_IR_JVC_DECODER is not set
+# CONFIG_IR_LIRC_CODEC is not set
+# CONFIG_IR_MCEUSB is not set
+# CONFIG_IR_NEC_DECODER is not set
+# CONFIG_IRQSOFF_TRACER is not set
+# CONFIG_IR_RC5_DECODER is not set
+# CONFIG_IR_RC5_SZ_DECODER is not set
+# CONFIG_IR_RC6_DECODER is not set
+# CONFIG_IR_SONY_DECODER is not set
+# CONFIG_IR_STREAMZAP is not set
+# CONFIG_ISCSI_BOOT_SYSFS is not set
+# CONFIG_ISCSI_TCP is not set
+# CONFIG_ISDN_AUDIO is not set
+# CONFIG_ISDN_CAPI_CAPIDRV is not set
+# CONFIG_ISDN_CAPI is not set
+# CONFIG_ISDN_DIVERSION is not set
+# CONFIG_ISDN_DRV_ACT2000 is not set
+# CONFIG_ISDN_DRV_AVMB1_VERBOSE_REASON is not set
+# CONFIG_ISDN_DRV_GIGASET is not set
+# CONFIG_ISDN_DRV_HISAX is not set
+# CONFIG_ISDN_DRV_ICN is not set
+# CONFIG_ISDN_DRV_LOOP is not set
+# CONFIG_ISDN_DRV_PCBIT is not set
+# CONFIG_ISDN_DRV_SC is not set
+# CONFIG_ISDN_I4L is not set
+CONFIG_ISDN=y
+# CONFIG_ISL29003 is not set
+# CONFIG_ISL29020 is not set
+# CONFIG_ISO9660_FS is not set
+# CONFIG_ISS4xx is not set
+# CONFIG_IWL3945 is not set
+# CONFIG_IWLAGN is not set
+# CONFIG_IWLWIFI is not set
+# CONFIG_IWMC3200TOP is not set
+# CONFIG_IXGB is not set
+# CONFIG_JBD2_DEBUG is not set
+# CONFIG_JBD_DEBUG is not set
+# CONFIG_JBD is not set
+# CONFIG_JFFS2_CMODE_FAVOURLZO is not set
+# CONFIG_JFFS2_CMODE_NONE is not set
+CONFIG_JFFS2_CMODE_PRIORITY=y
+# CONFIG_JFFS2_CMODE_SIZE is not set
+CONFIG_JFFS2_COMPRESSION_OPTIONS=y
+CONFIG_JFFS2_FS_DEBUG=0
+# CONFIG_JFFS2_FS_WBUF_VERIFY is not set
+CONFIG_JFFS2_FS_WRITEBUFFER=y
+# CONFIG_JFFS2_FS_XATTR is not set
+CONFIG_JFFS2_FS=y
+CONFIG_JFFS2_LZMA=y
+# CONFIG_JFFS2_LZO is not set
+CONFIG_JFFS2_RTIME=y
+# CONFIG_JFFS2_RUBIN is not set
+CONFIG_JFFS2_SUMMARY=y
+# CONFIG_JFFS2_ZLIB is not set
+# CONFIG_JFS_DEBUG is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_JFS_POSIX_ACL is not set
+# CONFIG_JFS_SECURITY is not set
+# CONFIG_JFS_STATISTICS is not set
+# CONFIG_JME is not set
+CONFIG_JOLIET=y
+# CONFIG_JUMP_LABEL is not set
+# CONFIG_KALLSYMS_ALL is not set
+# CONFIG_KALLSYMS_EXTRA_PASS is not set
+# CONFIG_KALLSYMS is not set
+# CONFIG_KARMA_PARTITION is not set
+# CONFIG_KERNEL_BZIP2 is not set
+# CONFIG_KERNEL_GZIP is not set
+CONFIG_KERNEL_LZMA=y
+# CONFIG_KERNEL_LZO is not set
+# CONFIG_KEXEC is not set
+# CONFIG_KEYBOARD_ADP5588 is not set
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_KEYBOARD_GPIO_POLLED is not set
+# CONFIG_KEYBOARD_LKKBD is not set
+# CONFIG_KEYBOARD_LM8323 is not set
+# CONFIG_KEYBOARD_MATRIX is not set
+# CONFIG_KEYBOARD_MAX7359 is not set
+# CONFIG_KEYBOARD_MCS is not set
+# CONFIG_KEYBOARD_NEWTON is not set
+# CONFIG_KEYBOARD_OPENCORES is not set
+# CONFIG_KEYBOARD_QT2160 is not set
+# CONFIG_KEYBOARD_STOWAWAY is not set
+# CONFIG_KEYBOARD_SUNKBD is not set
+# CONFIG_KEYBOARD_TCA6416 is not set
+# CONFIG_KEYBOARD_XTKBD is not set
+# CONFIG_KEYS is not set
+# CONFIG_KGDB is not set
+# CONFIG_KPROBES is not set
+# CONFIG_KS8842 is not set
+# CONFIG_KS8851 is not set
+# CONFIG_KS8851_MLL is not set
+# CONFIG_KSM is not set
+# CONFIG_KSZ884X_PCI is not set
+# CONFIG_L2TP_ETH is not set
+# CONFIG_L2TP_IP is not set
+# CONFIG_L2TP is not set
+# CONFIG_L2TP_V3 is not set
+# CONFIG_LANMEDIA is not set
+# CONFIG_LAPB is not set
+# CONFIG_LASAT is not set
+# CONFIG_LATENCYTOP is not set
+CONFIG_LBDAF=y
+# CONFIG_LDM_PARTITION is not set
+# CONFIG_LEDS_BD2802 is not set
+CONFIG_LEDS_CLASS=y
+# CONFIG_LEDS_DAC124S085 is not set
+CONFIG_LEDS_GPIO_PLATFORM=y
+# CONFIG_LEDS_INTEL_SS4200 is not set
+# CONFIG_LEDS_LP3944 is not set
+# CONFIG_LEDS_LP5521 is not set
+# CONFIG_LEDS_LP5523 is not set
+# CONFIG_LEDS_LT3593 is not set
+# CONFIG_LEDS_PCA9532 is not set
+# CONFIG_LEDS_PCA955X is not set
+# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+# CONFIG_LEDS_TRIGGER_GPIO is not set
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+# CONFIG_LEDS_TRIGGER_IDE_DISK is not set
+# CONFIG_LEDS_TRIGGER_MORSE is not set
+CONFIG_LEDS_TRIGGER_NETDEV=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+# CONFIG_LEDS_TRIGGER_USBDEV is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_LIB80211_CRYPT_CCMP is not set
+# CONFIG_LIB80211_CRYPT_TKIP is not set
+# CONFIG_LIB80211_CRYPT_WEP is not set
+# CONFIG_LIB80211_DEBUG is not set
+# CONFIG_LIB80211 is not set
+# CONFIG_LIBCRC32C is not set
+# CONFIG_LIBERTAS is not set
+# CONFIG_LIBERTAS_THINFIRM is not set
+# CONFIG_LIBERTAS_USB is not set
+# CONFIG_LIBFC is not set
+# CONFIG_LIBFCOE is not set
+# CONFIG_LIBIPW_DEBUG is not set
+# CONFIG_LINE6_USB is not set
+# CONFIG_LIRC_STAGING is not set
+# CONFIG_LKDTM is not set
+# CONFIG_LLC2 is not set
+CONFIG_LLC=y
+CONFIG_LOCALVERSION=""
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_LOCKDEP_SUPPORT=y
+# CONFIG_LOCKD is not set
+CONFIG_LOCKD_V4=y
+# CONFIG_LOCK_STAT is not set
+# CONFIG_LOCKUP_DETECTOR is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_LOGFS is not set
+# CONFIG_LOGIRUMBLEPAD2_FF is not set
+# CONFIG_LOGITECH_FF is not set
+# CONFIG_LOGO is not set
+# CONFIG_LOONGSON_MC146818 is not set
+# CONFIG_LP_CONSOLE is not set
+# CONFIG_LPC_SCH is not set
+# CONFIG_LSI_ET1011C_PHY is not set
+# CONFIG_LTPC is not set
+# CONFIG_LXT_PHY is not set
+CONFIG_LZMA_COMPRESS=y
+CONFIG_LZMA_DECOMPRESS=y
+# CONFIG_MAC80211 is not set
+# CONFIG_MAC_EMUMOUSEBTN is not set
+# CONFIG_MACH_DECSTATION is not set
+# CONFIG_MACH_JAZZ is not set
+# CONFIG_MACH_JZ4740 is not set
+# CONFIG_MACH_LOONGSON is not set
+# CONFIG_MACH_NO_WESTBRIDGE is not set
+# CONFIG_MACH_TX39XX is not set
+# CONFIG_MACH_TX49XX is not set
+# CONFIG_MACH_VR41XX is not set
+# CONFIG_MACINTOSH_DRIVERS is not set
+# CONFIG_MAC_PARTITION is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_MACVTAP is not set
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_MAX63XX_WATCHDOG is not set
+# CONFIG_MDIO_BITBANG is not set
+# CONFIG_MD is not set
+# CONFIG_MEDIA_ATTACH is not set
+# CONFIG_MEDIA_SUPPORT is not set
+# CONFIG_MEDIA_TUNER_CUSTOMISE is not set
+# CONFIG_MEGARAID_LEGACY is not set
+# CONFIG_MEGARAID_NEWGEN is not set
+# CONFIG_MEGARAID_SAS is not set
+# CONFIG_MEMORY_FAILURE is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_MFD_88PM860X is not set
+# CONFIG_MFD_ASIC3 is not set
+# CONFIG_MFD_CORE is not set
+# CONFIG_MFD_CS5535 is not set
+# CONFIG_MFD_JANZ_CMODIO is not set
+# CONFIG_MFD_MAX8925 is not set
+# CONFIG_MFD_MAX8998 is not set
+# CONFIG_MFD_MC13783 is not set
+# CONFIG_MFD_MC13XXX is not set
+# CONFIG_MFD_PCF50633 is not set
+# CONFIG_MFD_RDC321X is not set
+# CONFIG_MFD_SM501 is not set
+# CONFIG_MFD_STMPE is not set
+CONFIG_MFD_SUPPORT=y
+# CONFIG_MFD_TC35892 is not set
+# CONFIG_MFD_TC3589X is not set
+# CONFIG_MFD_TC6387XB is not set
+# CONFIG_MFD_TC6393XB is not set
+# CONFIG_MFD_TIMBERDALE is not set
+# CONFIG_MFD_TMIO is not set
+# CONFIG_MFD_TPS6586X is not set
+# CONFIG_MFD_VX855 is not set
+# CONFIG_MFD_WM831X_I2C is not set
+# CONFIG_MFD_WM831X is not set
+# CONFIG_MFD_WM831X_SPI is not set
+# CONFIG_MFD_WM8350_I2C is not set
+# CONFIG_MFD_WM8400 is not set
+# CONFIG_MFD_WM8994 is not set
+# CONFIG_MG_DISK is not set
+# CONFIG_MICREL_PHY is not set
+# CONFIG_MIGRATION is not set
+CONFIG_MII=y
+# CONFIG_MIKROTIK_RB532 is not set
+CONFIG_MINI_FO=y
+# CONFIG_MINIX_FS is not set
+# CONFIG_MINIX_SUBPARTITION is not set
+# CONFIG_MIPS_ALCHEMY is not set
+# CONFIG_MIPS_COBALT is not set
+# CONFIG_MIPS_FPU_EMU is not set
+# CONFIG_MIPS_MALTA is not set
+# CONFIG_MIPS_SIM is not set
+CONFIG_MISC_DEVICES=y
+CONFIG_MISC_FILESYSTEMS=y
+# CONFIG_MISDN_AVMFRITZ is not set
+# CONFIG_MISDN_HFCPCI is not set
+# CONFIG_MISDN_HFCUSB is not set
+# CONFIG_MISDN_INFINEON is not set
+# CONFIG_MISDN is not set
+# CONFIG_MISDN_NETJET is not set
+# CONFIG_MISDN_SPEEDFAX is not set
+# CONFIG_MISDN_W6692 is not set
+# CONFIG_MKISS is not set
+# CONFIG_MMC_ARMMMCI is not set
+CONFIG_MMC_BLOCK_BOUNCE=y
+# CONFIG_MMC_BLOCK is not set
+CONFIG_MMC_BLOCK_MINORS=8
+# CONFIG_MMC_CB710 is not set
+# CONFIG_MMC_DEBUG is not set
+# CONFIG_MMC is not set
+# CONFIG_MMC_MVSDIO is not set
+# CONFIG_MMC_S3C is not set
+# CONFIG_MMC_SDHCI is not set
+# CONFIG_MMC_SDRICOH_CS is not set
+# CONFIG_MMC_SPI is not set
+# CONFIG_MMC_TEST is not set
+# CONFIG_MMC_UNSAFE_RESUME is not set
+# CONFIG_MMC_USHC is not set
+# CONFIG_MMC_VIA_SDMMC is not set
+CONFIG_MMU=y
+# CONFIG_MODULE_FORCE_LOAD is not set
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MOUSE_APPLETOUCH is not set
+# CONFIG_MOUSE_INPORT is not set
+# CONFIG_MOUSE_LOGIBM is not set
+# CONFIG_MOUSE_PC110PAD is not set
+# CONFIG_MOUSE_PS2_SENTELIC is not set
+# CONFIG_MOUSE_SYNAPTICS_I2C is not set
+# CONFIG_MSDOS_FS is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_MTD_ABSENT is not set
+# CONFIG_MTD_AFS_PARTS is not set
+# CONFIG_MTD_ALAUDA is not set
+# CONFIG_MTD_AR7_PARTS is not set
+# CONFIG_MTD_ARM_INTEGRATOR is not set
+CONFIG_MTD_BLKDEVS=y
+# CONFIG_MTD_BLOCK2MTD is not set
+CONFIG_MTD_BLOCK=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_CFI_INTELEXT=y
+# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
+CONFIG_MTD_CFI_NOSWAP=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CHAR=y
+# CONFIG_MTD_CMDLINE_PARTS is not set
+CONFIG_MTD_COMPLEX_MAPPINGS=y
+# CONFIG_MTD_CONCAT is not set
+# CONFIG_MTD_DATAFLASH is not set
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_GPIO_ADDR is not set
+# CONFIG_MTD_INTEL_VR_NOR is not set
+# CONFIG_MTD_JEDECPROBE is not set
+# CONFIG_MTD_LPDDR is not set
+# CONFIG_MTD_M25P80 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_MYLOADER_PARTS is not set
+# CONFIG_MTD_NAND_CAFE is not set
+# CONFIG_MTD_NAND_DENALI is not set
+CONFIG_MTD_NAND_DENALI_SCRATCH_REG_ADDR=0xff108018
+# CONFIG_MTD_NAND_DISKONCHIP is not set
+# CONFIG_MTD_NAND_ECC_SMC is not set
+# CONFIG_MTD_NAND_GPIO is not set
+CONFIG_MTD_NAND_IDS=y
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_NAND_MUSEUM_IDS is not set
+# CONFIG_MTD_NAND_NANDSIM is not set
+# CONFIG_MTD_NAND_PLATFORM is not set
+# CONFIG_MTD_NAND_RICOH is not set
+# CONFIG_MTD_NAND_VERIFY_WRITE is not set
+# CONFIG_MTD_ONENAND is not set
+# CONFIG_MTD_OOPS is not set
+# CONFIG_MTD_OTP is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_PCI is not set
+# CONFIG_MTD_PCMCIA is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_PHYSMAP_COMPAT is not set
+# CONFIG_MTD_PHYSMAP is not set
+# CONFIG_MTD_PLATRAM is not set
+# CONFIG_MTD_PMC551 is not set
+# CONFIG_MTD_RAM is not set
+CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-1
+# CONFIG_MTD_REDBOOT_PARTS is not set
+# CONFIG_MTD_REDBOOT_PARTS_READONLY is not set
+# CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED is not set
+# CONFIG_MTD_ROM is not set
+CONFIG_MTD_ROOTFS_ROOT_DEV=y
+CONFIG_MTD_ROOTFS_SPLIT=y
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_SST25L is not set
+# CONFIG_MTD_TESTS is not set
+# CONFIG_MTD_UBI is not set
+CONFIG_MTD=y
+# CONFIG_MUTEX_SPIN_ON_OWNER is not set
+# CONFIG_MV643XX_ETH is not set
+# CONFIG_MVSWITCH_PHY is not set
+# CONFIG_MWAVE is not set
+# CONFIG_MWL8K is not set
+# CONFIG_MYRI10GE is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_NATIONAL_PHY is not set
+# CONFIG_NATSEMI is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_NEC_MARKEINS is not set
+# CONFIG_NET_9P is not set
+# CONFIG_NET_ACT_CSUM is not set
+# CONFIG_NET_ACT_GACT is not set
+# CONFIG_NET_ACT_IPT is not set
+# CONFIG_NET_ACT_MIRRED is not set
+# CONFIG_NET_ACT_NAT is not set
+# CONFIG_NET_ACT_PEDIT is not set
+# CONFIG_NET_ACT_POLICE is not set
+# CONFIG_NET_ACT_SIMP is not set
+CONFIG_NET_ACT_SKBEDIT=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_CLS_BASIC=y
+# CONFIG_NET_CLS_FLOW is not set
+# CONFIG_NET_CLS_FW is not set
+CONFIG_NET_CLS_IND=y
+# CONFIG_NET_CLS_ROUTE4 is not set
+# CONFIG_NET_CLS_RSVP6 is not set
+# CONFIG_NET_CLS_RSVP is not set
+# CONFIG_NET_CLS_TCINDEX is not set
+# CONFIG_NET_CLS_U32 is not set
+CONFIG_NET_CLS=y
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETDEV_10000 is not set
+CONFIG_NETDEV_1000=y
+CONFIG_NETDEVICES=y
+# CONFIG_NET_DROP_MONITOR is not set
+# CONFIG_NET_DSA is not set
+# CONFIG_NET_DSA_MV88E6123_61_65 is not set
+# CONFIG_NET_DSA_MV88E6131 is not set
+# CONFIG_NET_DSA_MV88E6XXX is not set
+# CONFIG_NET_DSA_MV88E6XXX_NEED_PPU is not set
+# CONFIG_NET_DSA_TAG_DSA is not set
+# CONFIG_NET_DSA_TAG_EDSA is not set
+# CONFIG_NET_EMATCH_CMP is not set
+# CONFIG_NET_EMATCH is not set
+# CONFIG_NET_EMATCH_META is not set
+# CONFIG_NET_EMATCH_NBYTE is not set
+CONFIG_NET_EMATCH_STACK=32
+# CONFIG_NET_EMATCH_TEXT is not set
+# CONFIG_NET_EMATCH_U32 is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_NET_FC is not set
+# CONFIG_NETFILTER_ADVANCED is not set
+# CONFIG_NETFILTER_DEBUG is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_NETFILTER_NETLINK is not set
+# CONFIG_NETFILTER_NETLINK_LOG is not set
+# CONFIG_NETFILTER_NETLINK_QUEUE is not set
+# CONFIG_NETFILTER_TPROXY is not set
+# CONFIG_NETFILTER_XTABLES is not set
+# CONFIG_NETFILTER_XT_CONNMARK is not set
+# CONFIG_NETFILTER_XT_MARK is not set
+# CONFIG_NETFILTER_XT_MATCH_CLUSTER is not set
+# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNBYTES is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNLIMIT is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNMARK is not set
+# CONFIG_NETFILTER_XT_MATCH_CONNTRACK is not set
+# CONFIG_NETFILTER_XT_MATCH_CPU is not set
+# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
+# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
+# CONFIG_NETFILTER_XT_MATCH_ESP is not set
+# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
+# CONFIG_NETFILTER_XT_MATCH_HELPER is not set
+# CONFIG_NETFILTER_XT_MATCH_HL is not set
+# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
+# CONFIG_NETFILTER_XT_MATCH_LAYER7_DEBUG is not set
+# CONFIG_NETFILTER_XT_MATCH_LAYER7 is not set
+# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
+# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
+# CONFIG_NETFILTER_XT_MATCH_MAC is not set
+# CONFIG_NETFILTER_XT_MATCH_MARK is not set
+# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
+# CONFIG_NETFILTER_XT_MATCH_OSF is not set
+# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
+# CONFIG_NETFILTER_XT_MATCH_PHYSDEV is not set
+# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
+# CONFIG_NETFILTER_XT_MATCH_POLICY is not set
+# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
+# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
+# CONFIG_NETFILTER_XT_MATCH_REALM is not set
+# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
+# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
+# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
+# CONFIG_NETFILTER_XT_MATCH_STATE is not set
+# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
+# CONFIG_NETFILTER_XT_MATCH_STRING is not set
+# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
+# CONFIG_NETFILTER_XT_MATCH_TIME is not set
+# CONFIG_NETFILTER_XT_MATCH_U32 is not set
+# CONFIG_NETFILTER_XT_TARGET_CHECKSUM is not set
+# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
+# CONFIG_NETFILTER_XT_TARGET_CONNMARK is not set
+# CONFIG_NETFILTER_XT_TARGET_CT is not set
+# CONFIG_NETFILTER_XT_TARGET_DSCP is not set
+# CONFIG_NETFILTER_XT_TARGET_HL is not set
+# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
+# CONFIG_NETFILTER_XT_TARGET_LED is not set
+# CONFIG_NETFILTER_XT_TARGET_MARK is not set
+# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
+# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
+# CONFIG_NETFILTER_XT_TARGET_NOTRACK is not set
+# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
+# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set
+# CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP is not set
+# CONFIG_NETFILTER_XT_TARGET_TEE is not set
+# CONFIG_NETFILTER_XT_TARGET_TPROXY is not set
+# CONFIG_NETFILTER_XT_TARGET_TRACE is not set
+CONFIG_NET_IPGRE_BROADCAST=y
+# CONFIG_NET_IPGRE_DEMUX is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_ISA is not set
+# CONFIG_NET_KEY is not set
+# CONFIG_NET_KEY_MIGRATE is not set
+CONFIG_NET_PCI=y
+# CONFIG_NET_PCMCIA is not set
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_NET_POCKET is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NETROM is not set
+# CONFIG_NET_SB1000 is not set
+# CONFIG_NET_SCH_ATM is not set
+# CONFIG_NET_SCH_CBQ is not set
+# CONFIG_NET_SCH_DRR is not set
+# CONFIG_NET_SCH_DSMARK is not set
+CONFIG_NET_SCHED=y
+# CONFIG_NET_SCH_ESFQ is not set
+CONFIG_NET_SCH_ESFQ_NFCT=y
+CONFIG_NET_SCH_FIFO=y
+# CONFIG_NET_SCH_GRED is not set
+# CONFIG_NET_SCH_HFSC is not set
+# CONFIG_NET_SCH_HTB is not set
+# CONFIG_NET_SCH_INGRESS is not set
+# CONFIG_NET_SCH_MULTIQ is not set
+# CONFIG_NET_SCH_NETEM is not set
+# CONFIG_NET_SCH_PRIO is not set
+# CONFIG_NET_SCH_RED is not set
+# CONFIG_NET_SCH_SFQ is not set
+# CONFIG_NET_SCH_TBF is not set
+# CONFIG_NET_SCH_TEQL is not set
+# CONFIG_NET_TULIP is not set
+# CONFIG_NET_VENDOR_3COM is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETXEN_NIC is not set
+CONFIG_NET=y
+CONFIG_NEW_LEDS=y
+# CONFIG_NFC_DEVICES is not set
+# CONFIG_NF_CONNTRACK_AMANDA is not set
+# CONFIG_NF_CONNTRACK_EVENTS is not set
+# CONFIG_NF_CONNTRACK_FTP is not set
+# CONFIG_NF_CONNTRACK_H323 is not set
+# CONFIG_NF_CONNTRACK_IPV4 is not set
+# CONFIG_NF_CONNTRACK_IPV6 is not set
+# CONFIG_NF_CONNTRACK_IRC is not set
+# CONFIG_NF_CONNTRACK is not set
+# CONFIG_NF_CONNTRACK_MARK is not set
+# CONFIG_NF_CONNTRACK_NETBIOS_NS is not set
+# CONFIG_NF_CONNTRACK_PPTP is not set
+# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
+# CONFIG_NF_CONNTRACK_RTSP is not set
+# CONFIG_NF_CONNTRACK_SANE is not set
+# CONFIG_NF_CONNTRACK_SIP is not set
+# CONFIG_NF_CONNTRACK_TFTP is not set
+# CONFIG_NF_CT_NETLINK is not set
+# CONFIG_NF_CT_PROTO_DCCP is not set
+# CONFIG_NF_CT_PROTO_GRE is not set
+# CONFIG_NF_CT_PROTO_SCTP is not set
+# CONFIG_NF_CT_PROTO_UDPLITE is not set
+# CONFIG_NF_DEFRAG_IPV4 is not set
+# CONFIG_NF_NAT_AMANDA is not set
+# CONFIG_NF_NAT_FTP is not set
+# CONFIG_NF_NAT_H323 is not set
+# CONFIG_NF_NAT_IRC is not set
+# CONFIG_NF_NAT is not set
+# CONFIG_NF_NAT_NEEDED is not set
+# CONFIG_NF_NAT_PPTP is not set
+# CONFIG_NF_NAT_PROTO_GRE is not set
+# CONFIG_NF_NAT_RTSP is not set
+# CONFIG_NF_NAT_SIP is not set
+# CONFIG_NF_NAT_SNMP_BASIC is not set
+# CONFIG_NF_NAT_TFTP is not set
+# CONFIG_NFS_ACL_SUPPORT is not set
+CONFIG_NFS_COMMON=y
+# CONFIG_NFSD_DEPRECATED is not set
+# CONFIG_NFSD is not set
+# CONFIG_NFSD_V2_ACL is not set
+# CONFIG_NFSD_V3_ACL is not set
+CONFIG_NFSD_V3=y
+# CONFIG_NFSD_V4 is not set
+# CONFIG_NFS_FS is not set
+# CONFIG_NFS_V3_ACL is not set
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V4_1 is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFTL is not set
+# CONFIG_N_GSM is not set
+# CONFIG_NILFS2_FS is not set
+CONFIG_NLATTR=y
+# CONFIG_NLS_ASCII is not set
+# CONFIG_NLS_CODEPAGE_1250 is not set
+# CONFIG_NLS_CODEPAGE_1251 is not set
+# CONFIG_NLS_CODEPAGE_437 is not set
+# CONFIG_NLS_CODEPAGE_737 is not set
+# CONFIG_NLS_CODEPAGE_775 is not set
+# CONFIG_NLS_CODEPAGE_850 is not set
+# CONFIG_NLS_CODEPAGE_852 is not set
+# CONFIG_NLS_CODEPAGE_855 is not set
+# CONFIG_NLS_CODEPAGE_857 is not set
+# CONFIG_NLS_CODEPAGE_860 is not set
+# CONFIG_NLS_CODEPAGE_861 is not set
+# CONFIG_NLS_CODEPAGE_862 is not set
+# CONFIG_NLS_CODEPAGE_863 is not set
+# CONFIG_NLS_CODEPAGE_864 is not set
+# CONFIG_NLS_CODEPAGE_865 is not set
+# CONFIG_NLS_CODEPAGE_866 is not set
+# CONFIG_NLS_CODEPAGE_869 is not set
+# CONFIG_NLS_CODEPAGE_874 is not set
+# CONFIG_NLS_CODEPAGE_932 is not set
+# CONFIG_NLS_CODEPAGE_936 is not set
+# CONFIG_NLS_CODEPAGE_949 is not set
+# CONFIG_NLS_CODEPAGE_950 is not set
+CONFIG_NLS_DEFAULT="iso8859-1"
+# CONFIG_NLS is not set
+# CONFIG_NLS_ISO8859_13 is not set
+# CONFIG_NLS_ISO8859_14 is not set
+# CONFIG_NLS_ISO8859_15 is not set
+# CONFIG_NLS_ISO8859_1 is not set
+# CONFIG_NLS_ISO8859_2 is not set
+# CONFIG_NLS_ISO8859_3 is not set
+# CONFIG_NLS_ISO8859_4 is not set
+# CONFIG_NLS_ISO8859_5 is not set
+# CONFIG_NLS_ISO8859_6 is not set
+# CONFIG_NLS_ISO8859_7 is not set
+# CONFIG_NLS_ISO8859_8 is not set
+# CONFIG_NLS_ISO8859_9 is not set
+# CONFIG_NLS_KOI8_R is not set
+# CONFIG_NLS_KOI8_U is not set
+# CONFIG_NLS_UTF8 is not set
+# CONFIG_NO_BOOTMEM is not set
+# CONFIG_NO_HZ is not set
+# CONFIG_NO_IOPORT is not set
+# CONFIG_NOP_USB_XCEIV is not set
+# CONFIG_NORTEL_HERMES is not set
+# CONFIG_NOZOMI is not set
+# CONFIG_NS83820 is not set
+# CONFIG_NTFS_DEBUG is not set
+# CONFIG_NTFS_FS is not set
+# CONFIG_NTFS_RW is not set
+# CONFIG_NVRAM is not set
+# CONFIG_NXP_STB220 is not set
+# CONFIG_NXP_STB225 is not set
+# CONFIG_OC_ETM is not set
+# CONFIG_OCF_BENCH is not set
+# CONFIG_OCF_C7108 is not set
+# CONFIG_OCF_CRYPTOCTEON is not set
+# CONFIG_OCF_EP80579 is not set
+# CONFIG_OCF_HIFNHIPP is not set
+# CONFIG_OCF_HIFN is not set
+# CONFIG_OCF_IXP4XX is not set
+# CONFIG_OCF_KIRKWOOD is not set
+# CONFIG_OCF_OCF is not set
+# CONFIG_OCF_OCFNULL is not set
+# CONFIG_OCFS2_FS is not set
+# CONFIG_OCF_SAFE is not set
+# CONFIG_OCF_TALITOS is not set
+# CONFIG_OMFS_FS is not set
+# CONFIG_ORION_WATCHDOG is not set
+# CONFIG_OSF_PARTITION is not set
+# CONFIG_P54_COMMON is not set
+CONFIG_PACKET=y
+# CONFIG_PAGE_POISONING is not set
+# CONFIG_PAGE_SIZE_16KB is not set
+# CONFIG_PAGE_SIZE_32KB is not set
+CONFIG_PAGE_SIZE_4KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+# CONFIG_PANEL is not set
+# CONFIG_PANTHERLORD_FF is not set
+# CONFIG_PARPORT_1284 is not set
+# CONFIG_PARPORT_AX88796 is not set
+# CONFIG_PARPORT is not set
+# CONFIG_PARPORT_PC is not set
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_PATA_ALI is not set
+# CONFIG_PATA_AMD is not set
+# CONFIG_PATA_ARTOP is not set
+# CONFIG_PATA_ATIIXP is not set
+# CONFIG_PATA_ATP867X is not set
+# CONFIG_PATA_CMD640_PCI is not set
+# CONFIG_PATA_CMD64X is not set
+# CONFIG_PATA_CS5520 is not set
+# CONFIG_PATA_CS5530 is not set
+# CONFIG_PATA_CS5535 is not set
+# CONFIG_PATA_CS5536 is not set
+# CONFIG_PATA_CYPRESS is not set
+# CONFIG_PATA_EFAR is not set
+# CONFIG_PATA_HPT366 is not set
+# CONFIG_PATA_HPT37X is not set
+# CONFIG_PATA_HPT3X2N is not set
+# CONFIG_PATA_HPT3X3 is not set
+# CONFIG_PATA_ISAPNP is not set
+# CONFIG_PATA_IT8213 is not set
+# CONFIG_PATA_IT821X is not set
+# CONFIG_PATA_JMICRON is not set
+# CONFIG_PATA_LEGACY is not set
+# CONFIG_PATA_MARVELL is not set
+# CONFIG_PATA_MPIIX is not set
+# CONFIG_PATA_NETCELL is not set
+# CONFIG_PATA_NINJA32 is not set
+# CONFIG_PATA_NS87410 is not set
+# CONFIG_PATA_NS87415 is not set
+# CONFIG_PATA_OLDPIIX is not set
+# CONFIG_PATA_OPTIDMA is not set
+# CONFIG_PATA_OPTI is not set
+# CONFIG_PATA_PCMCIA is not set
+# CONFIG_PATA_PDC2027X is not set
+# CONFIG_PATA_PDC_OLD is not set
+# CONFIG_PATA_PLATFORM is not set
+# CONFIG_PATA_QDI is not set
+# CONFIG_PATA_RADISYS is not set
+# CONFIG_PATA_RDC is not set
+# CONFIG_PATA_RZ1000 is not set
+# CONFIG_PATA_SC1200 is not set
+# CONFIG_PATA_SCH is not set
+# CONFIG_PATA_SERVERWORKS is not set
+# CONFIG_PATA_SIL680 is not set
+# CONFIG_PATA_SIS is not set
+# CONFIG_PATA_TOSHIBA is not set
+# CONFIG_PATA_TRIFLEX is not set
+# CONFIG_PATA_VIA is not set
+# CONFIG_PATA_WINBOND is not set
+# CONFIG_PATA_WINBOND_VLB is not set
+# CONFIG_PC300TOO is not set
+# CONFIG_PCCARD is not set
+# CONFIG_PCH_GBE is not set
+# CONFIG_PCH_PHUB is not set
+# CONFIG_PCI200SYN is not set
+# CONFIG_PCI_ATMEL is not set
+# CONFIG_PCI_CNB20LE_QUIRK is not set
+# CONFIG_PCI_DEBUG is not set
+# CONFIG_PCI_DISABLE_COMMON_QUIRKS is not set
+# CONFIG_PCIEAER_INJECT is not set
+# CONFIG_PCIEASPM is not set
+# CONFIG_PCIE_ECRC is not set
+# CONFIG_PCI_HERMES is not set
+# CONFIG_PCI_IOV is not set
+# CONFIG_PCI_MSI is not set
+# CONFIG_PCIPCWATCHDOG is not set
+CONFIG_PCI_QUIRKS=y
+# CONFIG_PCI_STUB is not set
+CONFIG_PCI_SYSCALL=y
+# CONFIG_PCMCIA_AHA152X is not set
+# CONFIG_PCMCIA_ATMEL is not set
+# CONFIG_PCMCIA_DEBUG is not set
+# CONFIG_PCMCIA_FDOMAIN is not set
+# CONFIG_PCMCIA_HERMES is not set
+# CONFIG_PCMCIA is not set
+# CONFIG_PCMCIA_LOAD_CIS is not set
+# CONFIG_PCMCIA_NINJA_SCSI is not set
+# CONFIG_PCMCIA_QLOGIC is not set
+# CONFIG_PCMCIA_RAYCS is not set
+# CONFIG_PCMCIA_SPECTRUM is not set
+# CONFIG_PCMCIA_SYM53C500 is not set
+# CONFIG_PCMCIA_WL3501 is not set
+# CONFIG_PCMCIA_XIRCOM is not set
+# CONFIG_PCNET32 is not set
+# CONFIG_PCSPKR_PLATFORM is not set
+# CONFIG_PD6729 is not set
+# CONFIG_PDC_ADMA is not set
+# CONFIG_PERF_COUNTERS is not set
+# CONFIG_PERF_EVENTS is not set
+# CONFIG_PHANTOM is not set
+# CONFIG_PHONE is not set
+# CONFIG_PHONET is not set
+# CONFIG_PHYLIB is not set
+# CONFIG_PHYS_ADDR_T_64BIT is not set
+# CONFIG_PID_NS is not set
+# CONFIG_PLIP is not set
+# CONFIG_PLX_HERMES is not set
+# CONFIG_PMC_MSP is not set
+# CONFIG_PMC_YOSEMITE is not set
+# CONFIG_PMIC_ADP5520 is not set
+# CONFIG_PMIC_DA903X is not set
+# CONFIG_PM is not set
+# CONFIG_PNX8550_JBS is not set
+# CONFIG_PNX8550_STB810 is not set
+# CONFIG_POHMELFS is not set
+# CONFIG_POSIX_MQUEUE is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_POWERTV is not set
+# CONFIG_PPC_16K_PAGES is not set
+# CONFIG_PPC_256K_PAGES is not set
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC4xx_GPIO is not set
+# CONFIG_PPC_64K_PAGES is not set
+# CONFIG_PPC_DISABLE_WERROR is not set
+# CONFIG_PPC_EMULATED_STATS is not set
+# CONFIG_PPP_ASYNC is not set
+# CONFIG_PPP_BSDCOMP is not set
+# CONFIG_PPP_DEFLATE is not set
+CONFIG_PPP_FILTER=y
+# CONFIG_PPP is not set
+# CONFIG_PPP_MPPE is not set
+CONFIG_PPP_MULTILINK=y
+# CONFIG_PPPOATM is not set
+# CONFIG_PPPOE is not set
+# CONFIG_PPPOL2TP is not set
+# CONFIG_PPP_SYNC_TTY is not set
+# CONFIG_PPS is not set
+# CONFIG_PREEMPT is not set
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+# CONFIG_PRINTK_TIME is not set
+CONFIG_PRINTK=y
+# CONFIG_PRISM2_USB is not set
+# CONFIG_PRISM54 is not set
+# CONFIG_PROBE_INITRD_HEADER is not set
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_PROC_SYSCTL=y
+# CONFIG_PROFILING is not set
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_QLA3XXX is not set
+# CONFIG_QLCNIC is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_QUOTA_DEBUG is not set
+# CONFIG_QUOTA is not set
+# CONFIG_R3964 is not set
+# CONFIG_R6040 is not set
+# CONFIG_R8169 is not set
+# CONFIG_R8187SE is not set
+# CONFIG_R8712U is not set
+# CONFIG_RADIO_ADAPTERS is not set
+# CONFIG_RADIO_AZTECH is not set
+# CONFIG_RADIO_CADET is not set
+# CONFIG_RADIO_GEMTEK is not set
+# CONFIG_RADIO_GEMTEK_PCI is not set
+# CONFIG_RADIO_MAESTRO is not set
+# CONFIG_RADIO_MAXIRADIO is not set
+# CONFIG_RADIO_RTRACK2 is not set
+# CONFIG_RADIO_RTRACK is not set
+# CONFIG_RADIO_SF16FMI is not set
+# CONFIG_RADIO_SF16FMR2 is not set
+# CONFIG_RADIO_TERRATEC is not set
+# CONFIG_RADIO_TRUST is not set
+# CONFIG_RADIO_TYPHOON is not set
+# CONFIG_RADIO_ZOLTRIX is not set
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_RAMOOPS is not set
+# CONFIG_RAR_REGISTER is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_RC_MAP is not set
+# CONFIG_RCU_CPU_STALL_DETECTOR is not set
+CONFIG_RCU_FANOUT=32
+# CONFIG_RCU_FANOUT_EXACT is not set
+# CONFIG_RCU_FAST_NO_HZ is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_RCU_TRACE is not set
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_GZIP is not set
+CONFIG_RD_LZMA=y
+# CONFIG_RD_LZO is not set
+# CONFIG_RDS is not set
+# CONFIG_REALTEK_PHY is not set
+# CONFIG_REDWOOD is not set
+# CONFIG_REGULATOR_BQ24022 is not set
+# CONFIG_REGULATOR_FIXED_VOLTAGE is not set
+# CONFIG_REGULATOR is not set
+# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
+# CONFIG_REISERFS_CHECK is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_REISERFS_FS_XATTR is not set
+# CONFIG_REISERFS_PROC_INFO is not set
+# CONFIG_RELAY is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_RFKILL_INPUT is not set
+# CONFIG_RFKILL is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_ROSE is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_RT2860 is not set
+# CONFIG_RT2870 is not set
+# CONFIG_RT2X00 is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_RTC_DEBUG is not set
+# CONFIG_RTC_DRV_BQ32K is not set
+# CONFIG_RTC_DRV_BQ4802 is not set
+CONFIG_RTC_DRV_CMOS=y
+# CONFIG_RTC_DRV_DS1286 is not set
+# CONFIG_RTC_DRV_DS1305 is not set
+# CONFIG_RTC_DRV_DS1307 is not set
+# CONFIG_RTC_DRV_DS1374 is not set
+# CONFIG_RTC_DRV_DS1390 is not set
+# CONFIG_RTC_DRV_DS1511 is not set
+# CONFIG_RTC_DRV_DS1553 is not set
+# CONFIG_RTC_DRV_DS1672 is not set
+# CONFIG_RTC_DRV_DS1742 is not set
+# CONFIG_RTC_DRV_DS3232 is not set
+# CONFIG_RTC_DRV_DS3234 is not set
+# CONFIG_RTC_DRV_FM3130 is not set
+# CONFIG_RTC_DRV_ISL12022 is not set
+# CONFIG_RTC_DRV_ISL1208 is not set
+# CONFIG_RTC_DRV_M41T80 is not set
+# CONFIG_RTC_DRV_M41T94 is not set
+# CONFIG_RTC_DRV_M48T35 is not set
+# CONFIG_RTC_DRV_M48T59 is not set
+# CONFIG_RTC_DRV_M48T86 is not set
+# CONFIG_RTC_DRV_MAX6900 is not set
+# CONFIG_RTC_DRV_MAX6902 is not set
+# CONFIG_RTC_DRV_MSM6242 is not set
+# CONFIG_RTC_DRV_PCF2123 is not set
+# CONFIG_RTC_DRV_PCF8563 is not set
+# CONFIG_RTC_DRV_PCF8583 is not set
+# CONFIG_RTC_DRV_R9701 is not set
+# CONFIG_RTC_DRV_RP5C01 is not set
+# CONFIG_RTC_DRV_RS5C348 is not set
+# CONFIG_RTC_DRV_RS5C372 is not set
+# CONFIG_RTC_DRV_RTC7301 is not set
+# CONFIG_RTC_DRV_RX8025 is not set
+# CONFIG_RTC_DRV_RX8581 is not set
+# CONFIG_RTC_DRV_S35390A is not set
+# CONFIG_RTC_DRV_STK17TA8 is not set
+# CONFIG_RTC_DRV_TEST is not set
+# CONFIG_RTC_DRV_V3020 is not set
+# CONFIG_RTC_DRV_X1205 is not set
+CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
+CONFIG_RTC_HCTOSYS=y
+# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
+CONFIG_RTC_INTF_DEV=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_LIB=y
+# CONFIG_RTL8180 is not set
+# CONFIG_RTL8187 is not set
+# CONFIG_RTL8192E is not set
+# CONFIG_RTL8192SU is not set
+# CONFIG_RTL8192U is not set
+# CONFIG_RTL8306_PHY is not set
+# CONFIG_RTL8366RB_PHY is not set
+# CONFIG_RTL8366_SMI is not set
+# CONFIG_RTL8366S_PHY_DEBUG_FS is not set
+# CONFIG_RTL8366S_PHY is not set
+CONFIG_RT_MUTEXES=y
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_RUNTIME_DEBUG is not set
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+# CONFIG_S2IO is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_SATA_ACARD_AHCI is not set
+# CONFIG_SATA_AHCI is not set
+# CONFIG_SATA_AHCI_PLATFORM is not set
+# CONFIG_SATA_INIC162X is not set
+# CONFIG_SATA_MV is not set
+# CONFIG_SATA_NV is not set
+# CONFIG_SATA_PMP is not set
+# CONFIG_SATA_PROMISE is not set
+# CONFIG_SATA_QSTOR is not set
+# CONFIG_SATA_SIL24 is not set
+# CONFIG_SATA_SIL is not set
+# CONFIG_SATA_SIS is not set
+# CONFIG_SATA_SVW is not set
+# CONFIG_SATA_SX4 is not set
+# CONFIG_SATA_ULI is not set
+# CONFIG_SATA_VIA is not set
+# CONFIG_SATA_VITESSE is not set
+# CONFIG_SBC_FITPC2_WATCHDOG is not set
+# CONFIG_SBE_2T3E3 is not set
+# CONFIG_SC92031 is not set
+# CONFIG_SCC is not set
+# CONFIG_SCHED_AUTOGROUP is not set
+# CONFIG_SCHED_DEBUG is not set
+CONFIG_SCHED_OMIT_FRAME_POINTER=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_SCHED_TRACER is not set
+# CONFIG_SCSI_3W_9XXX is not set
+# CONFIG_SCSI_3W_SAS is not set
+# CONFIG_SCSI_7000FASST is not set
+# CONFIG_SCSI_AACRAID is not set
+# CONFIG_SCSI_ACARD is not set
+# CONFIG_SCSI_ADVANSYS is not set
+# CONFIG_SCSI_AHA152X is not set
+# CONFIG_SCSI_AHA1542 is not set
+# CONFIG_SCSI_AIC79XX is not set
+# CONFIG_SCSI_AIC7XXX is not set
+# CONFIG_SCSI_AIC7XXX_OLD is not set
+# CONFIG_SCSI_AIC94XX is not set
+# CONFIG_SCSI_ARCMSR is not set
+# CONFIG_SCSI_BFA_FC is not set
+# CONFIG_SCSI_BNX2_ISCSI is not set
+# CONFIG_SCSI_BUSLOGIC is not set
+# CONFIG_SCSI_CONSTANTS is not set
+# CONFIG_SCSI_DC390T is not set
+# CONFIG_SCSI_DC395x is not set
+# CONFIG_SCSI_DEBUG is not set
+# CONFIG_SCSI_DH is not set
+CONFIG_SCSI_DMA=y
+# CONFIG_SCSI_DMX3191D is not set
+# CONFIG_SCSI_DPT_I2O is not set
+# CONFIG_SCSI_DTC3280 is not set
+# CONFIG_SCSI_EATA is not set
+# CONFIG_SCSI_FC_ATTRS is not set
+# CONFIG_SCSI_FUTURE_DOMAIN is not set
+# CONFIG_SCSI_GDTH is not set
+# CONFIG_SCSI_GENERIC_NCR5380 is not set
+# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set
+# CONFIG_SCSI_HPSA is not set
+# CONFIG_SCSI_HPTIOP is not set
+# CONFIG_SCSI_IN2000 is not set
+# CONFIG_SCSI_INIA100 is not set
+# CONFIG_SCSI_INITIO is not set
+# CONFIG_SCSI_IPR is not set
+# CONFIG_SCSI_IPS is not set
+# CONFIG_SCSI_ISCSI_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_LOWLEVEL_PCMCIA is not set
+CONFIG_SCSI_LOWLEVEL=y
+# CONFIG_SCSI_LPFC is not set
+CONFIG_SCSI_MOD=y
+# CONFIG_SCSI_MPT2SAS is not set
+CONFIG_SCSI_MULTI_LUN=y
+# CONFIG_SCSI_MVSAS_DEBUG is not set
+# CONFIG_SCSI_MVSAS is not set
+# CONFIG_SCSI_NCR53C406A is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_SCSI_NSP32 is not set
+# CONFIG_SCSI_OSD_INITIATOR is not set
+# CONFIG_SCSI_PAS16 is not set
+# CONFIG_SCSI_PM8001 is not set
+# CONFIG_SCSI_PMCRAID is not set
+CONFIG_SCSI_PROC_FS=y
+# CONFIG_SCSI_QLA_FC is not set
+# CONFIG_SCSI_QLA_ISCSI is not set
+# CONFIG_SCSI_QLOGIC_1280 is not set
+# CONFIG_SCSI_QLOGIC_FAS is not set
+# CONFIG_SCSI_SAS_ATTRS is not set
+# CONFIG_SCSI_SAS_LIBSAS is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
+# CONFIG_SCSI_SPI_ATTRS is not set
+# CONFIG_SCSI_SRP_ATTRS is not set
+# CONFIG_SCSI_SRP is not set
+# CONFIG_SCSI_STEX is not set
+# CONFIG_SCSI_SYM53C416 is not set
+# CONFIG_SCSI_SYM53C8XX_2 is not set
+# CONFIG_SCSI_T128 is not set
+# CONFIG_SCSI_TGT is not set
+# CONFIG_SCSI_U14_34F is not set
+# CONFIG_SCSI_ULTRASTOR is not set
+CONFIG_SCSI_WAIT_SCAN=m
+# CONFIG_SECCOMP is not set
+# CONFIG_SECURITY_DMESG_RESTRICT is not set
+# CONFIG_SECURITYFS is not set
+# CONFIG_SECURITY is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+# CONFIG_SENSORS_ABITUGURU3 is not set
+# CONFIG_SENSORS_ABITUGURU is not set
+# CONFIG_SENSORS_AD7414 is not set
+# CONFIG_SENSORS_AD7418 is not set
+# CONFIG_SENSORS_ADCXX is not set
+# CONFIG_SENSORS_ADM1021 is not set
+# CONFIG_SENSORS_ADM1025 is not set
+# CONFIG_SENSORS_ADM1026 is not set
+# CONFIG_SENSORS_ADM1029 is not set
+# CONFIG_SENSORS_ADM1031 is not set
+# CONFIG_SENSORS_ADM9240 is not set
+# CONFIG_SENSORS_ADS7828 is not set
+# CONFIG_SENSORS_ADS7871 is not set
+# CONFIG_SENSORS_ADT7411 is not set
+# CONFIG_SENSORS_ADT7462 is not set
+# CONFIG_SENSORS_ADT7470 is not set
+# CONFIG_SENSORS_ADT7475 is not set
+# CONFIG_SENSORS_AMC6821 is not set
+# CONFIG_SENSORS_APDS990X is not set
+# CONFIG_SENSORS_APPLESMC is not set
+# CONFIG_SENSORS_ASB100 is not set
+# CONFIG_SENSORS_ASC7621 is not set
+# CONFIG_SENSORS_ATK0110 is not set
+# CONFIG_SENSORS_ATXP1 is not set
+# CONFIG_SENSORS_BH1770 is not set
+# CONFIG_SENSORS_BH1780 is not set
+# CONFIG_SENSORS_CORETEMP is not set
+# CONFIG_SENSORS_DME1737 is not set
+# CONFIG_SENSORS_DS1621 is not set
+# CONFIG_SENSORS_DS620 is not set
+# CONFIG_SENSORS_EMC1403 is not set
+# CONFIG_SENSORS_EMC2103 is not set
+# CONFIG_SENSORS_F71805F is not set
+# CONFIG_SENSORS_F71882FG is not set
+# CONFIG_SENSORS_F75375S is not set
+# CONFIG_SENSORS_FSCHMD is not set
+# CONFIG_SENSORS_G760A is not set
+# CONFIG_SENSORS_GL518SM is not set
+# CONFIG_SENSORS_GL520SM is not set
+# CONFIG_SENSORS_GPIO_FAN is not set
+# CONFIG_SENSORS_HDAPS is not set
+# CONFIG_SENSORS_I5K_AMB is not set
+# CONFIG_SENSORS_IT87 is not set
+# CONFIG_SENSORS_JC42 is not set
+# CONFIG_SENSORS_K8TEMP is not set
+# CONFIG_SENSORS_LIS3_I2C is not set
+# CONFIG_SENSORS_LIS3LV02D is not set
+# CONFIG_SENSORS_LIS3_SPI is not set
+# CONFIG_SENSORS_LM63 is not set
+# CONFIG_SENSORS_LM70 is not set
+# CONFIG_SENSORS_LM73 is not set
+# CONFIG_SENSORS_LM75 is not set
+# CONFIG_SENSORS_LM77 is not set
+# CONFIG_SENSORS_LM78 is not set
+# CONFIG_SENSORS_LM80 is not set
+# CONFIG_SENSORS_LM83 is not set
+# CONFIG_SENSORS_LM85 is not set
+# CONFIG_SENSORS_LM87 is not set
+# CONFIG_SENSORS_LM90 is not set
+# CONFIG_SENSORS_LM92 is not set
+# CONFIG_SENSORS_LM93 is not set
+# CONFIG_SENSORS_LM95241 is not set
+# CONFIG_SENSORS_LTC4215 is not set
+# CONFIG_SENSORS_LTC4245 is not set
+# CONFIG_SENSORS_LTC4261 is not set
+# CONFIG_SENSORS_MAX1111 is not set
+# CONFIG_SENSORS_MAX1619 is not set
+# CONFIG_SENSORS_MAX6650 is not set
+# CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
+# CONFIG_SENSORS_PCF8591 is not set
+# CONFIG_SENSORS_SHT15 is not set
+# CONFIG_SENSORS_SHT21 is not set
+# CONFIG_SENSORS_SIS5595 is not set
+# CONFIG_SENSORS_SMM665 is not set
+# CONFIG_SENSORS_SMSC47B397 is not set
+# CONFIG_SENSORS_SMSC47M192 is not set
+# CONFIG_SENSORS_SMSC47M1 is not set
+# CONFIG_SENSORS_THMC50 is not set
+# CONFIG_SENSORS_TMP102 is not set
+# CONFIG_SENSORS_TMP401 is not set
+# CONFIG_SENSORS_TMP421 is not set
+# CONFIG_SENSORS_TSL2550 is not set
+# CONFIG_SENSORS_VIA686A is not set
+# CONFIG_SENSORS_VT1211 is not set
+# CONFIG_SENSORS_VT8231 is not set
+# CONFIG_SENSORS_W83627EHF is not set
+# CONFIG_SENSORS_W83627HF is not set
+# CONFIG_SENSORS_W83781D is not set
+# CONFIG_SENSORS_W83791D is not set
+# CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83793 is not set
+# CONFIG_SENSORS_W83795 is not set
+# CONFIG_SENSORS_W83L785TS is not set
+# CONFIG_SENSORS_W83L786NG is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+# CONFIG_SERIAL_8250_CS is not set
+# CONFIG_SERIAL_8250_EXTENDED is not set
+CONFIG_SERIAL_8250_NR_UARTS=2
+# CONFIG_SERIAL_8250_PCI is not set
+CONFIG_SERIAL_8250_RUNTIME_UARTS=2
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_ALTERA_JTAGUART is not set
+# CONFIG_SERIAL_ALTERA_UART is not set
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_CORE=y
+# CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set
+# CONFIG_SERIAL_JSM is not set
+# CONFIG_SERIAL_MAX3100 is not set
+# CONFIG_SERIAL_MAX3107 is not set
+# CONFIG_SERIAL_MFD_HSU is not set
+# CONFIG_SERIAL_NONSTANDARD is not set
+# CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL is not set
+# CONFIG_SERIAL_TIMBERDALE is not set
+# CONFIG_SERIAL_UARTLITE is not set
+# CONFIG_SERIO_ALTERA_PS2 is not set
+# CONFIG_SERIO is not set
+# CONFIG_SFI is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_SGI_IP22 is not set
+# CONFIG_SGI_IP27 is not set
+# CONFIG_SGI_IP28 is not set
+# CONFIG_SGI_IP32 is not set
+# CONFIG_SGI_PARTITION is not set
+CONFIG_SHMEM=y
+# CONFIG_SIBYTE_BIGSUR is not set
+# CONFIG_SIBYTE_CARMEL is not set
+# CONFIG_SIBYTE_CRHINE is not set
+# CONFIG_SIBYTE_CRHONE is not set
+# CONFIG_SIBYTE_LITTLESUR is not set
+# CONFIG_SIBYTE_RHONE is not set
+# CONFIG_SIBYTE_SENTOSA is not set
+# CONFIG_SIBYTE_SWARM is not set
+CONFIG_SIGNALFD=y
+# CONFIG_SIMPLE_GPIO is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SIS900 is not set
+# CONFIG_SKGE is not set
+# CONFIG_SKY2_DEBUG is not set
+# CONFIG_SKY2 is not set
+CONFIG_SLABINFO=y
+CONFIG_SLAB=y
+# CONFIG_SLHC is not set
+# CONFIG_SLICOSS is not set
+# CONFIG_SLIP is not set
+# CONFIG_SLOB is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_SLUB is not set
+# CONFIG_SLUB_STATS is not set
+# CONFIG_SMARTJOYPLUS_FF is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_SMB_NLS_DEFAULT is not set
+# CONFIG_SMC911X is not set
+# CONFIG_SMC91X is not set
+# CONFIG_SM_FTL is not set
+# CONFIG_SMP is not set
+# CONFIG_SMSC911X is not set
+# CONFIG_SMSC9420 is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_SND_AC97_POWER_SAVE is not set
+# CONFIG_SND_AD1816A is not set
+# CONFIG_SND_AD1848 is not set
+# CONFIG_SND_AD1889 is not set
+# CONFIG_SND_ADLIB is not set
+# CONFIG_SND_ALI5451 is not set
+# CONFIG_SND_ALOOP is not set
+# CONFIG_SND_ALS100 is not set
+# CONFIG_SND_ALS300 is not set
+# CONFIG_SND_ALS4000 is not set
+# CONFIG_SND_ARM is not set
+# CONFIG_SND_ATIIXP is not set
+# CONFIG_SND_ATIIXP_MODEM is not set
+# CONFIG_SND_ATMEL_AC97C is not set
+# CONFIG_SND_ATMEL_SOC is not set
+# CONFIG_SND_AU8810 is not set
+# CONFIG_SND_AU8820 is not set
+# CONFIG_SND_AU8830 is not set
+# CONFIG_SND_AW2 is not set
+# CONFIG_SND_AZT2320 is not set
+# CONFIG_SND_AZT3328 is not set
+# CONFIG_SND_BT87X is not set
+# CONFIG_SND_CA0106 is not set
+# CONFIG_SND_CMI8330 is not set
+# CONFIG_SND_CMIPCI is not set
+# CONFIG_SND_CS4231 is not set
+# CONFIG_SND_CS4236 is not set
+# CONFIG_SND_CS4281 is not set
+# CONFIG_SND_CS46XX is not set
+# CONFIG_SND_CS5530 is not set
+# CONFIG_SND_CS5535AUDIO is not set
+# CONFIG_SND_CTXFI is not set
+# CONFIG_SND_DARLA20 is not set
+# CONFIG_SND_DARLA24 is not set
+# CONFIG_SND_DEBUG is not set
+CONFIG_SND_DRIVERS=y
+# CONFIG_SND_DUMMY is not set
+# CONFIG_SND_DYNAMIC_MINORS is not set
+# CONFIG_SND_ECHO3G is not set
+# CONFIG_SND_EMU10K1 is not set
+# CONFIG_SND_EMU10K1X is not set
+# CONFIG_SND_ENS1370 is not set
+# CONFIG_SND_ENS1371 is not set
+# CONFIG_SND_ES1688 is not set
+# CONFIG_SND_ES18XX is not set
+# CONFIG_SND_ES1938 is not set
+# CONFIG_SND_ES1968 is not set
+# CONFIG_SND_FM801 is not set
+# CONFIG_SND_GINA20 is not set
+# CONFIG_SND_GINA24 is not set
+# CONFIG_SND_GUSCLASSIC is not set
+# CONFIG_SND_GUSEXTREME is not set
+# CONFIG_SND_GUSMAX is not set
+# CONFIG_SND_HDA_INTEL is not set
+# CONFIG_SND_HDSP is not set
+# CONFIG_SND_HDSPM is not set
+# CONFIG_SND_HIFIER is not set
+# CONFIG_SND_HRTIMER is not set
+# CONFIG_SND_HWDEP is not set
+# CONFIG_SND_ICE1712 is not set
+# CONFIG_SND_ICE1724 is not set
+# CONFIG_SND_INDIGODJ is not set
+# CONFIG_SND_INDIGODJX is not set
+# CONFIG_SND_INDIGOIO is not set
+# CONFIG_SND_INDIGOIOX is not set
+# CONFIG_SND_INDIGO is not set
+# CONFIG_SND_INTEL8X0 is not set
+# CONFIG_SND_INTEL8X0M is not set
+# CONFIG_SND_INTERWAVE is not set
+# CONFIG_SND_INTERWAVE_STB is not set
+# CONFIG_SND_ISA is not set
+# CONFIG_SND is not set
+# CONFIG_SND_KORG1212 is not set
+# CONFIG_SND_LAYLA20 is not set
+# CONFIG_SND_LAYLA24 is not set
+# CONFIG_SND_LX6464ES is not set
+# CONFIG_SND_MAESTRO3 is not set
+# CONFIG_SND_MIA is not set
+# CONFIG_SND_MIPS is not set
+# CONFIG_SND_MIRO is not set
+# CONFIG_SND_MIXART is not set
+# CONFIG_SND_MIXER_OSS is not set
+# CONFIG_SND_MONA is not set
+# CONFIG_SND_MPU401 is not set
+# CONFIG_SND_MTPAV is not set
+# CONFIG_SND_MTS64 is not set
+# CONFIG_SND_NM256 is not set
+# CONFIG_SND_OPL3SA2 is not set
+# CONFIG_SND_OPTI92X_AD1848 is not set
+# CONFIG_SND_OPTI92X_CS4231 is not set
+# CONFIG_SND_OPTI93X is not set
+CONFIG_SND_OSSEMUL=y
+# CONFIG_SND_OXYGEN is not set
+CONFIG_SND_PCI=y
+# CONFIG_SND_PCMCIA is not set
+# CONFIG_SND_PCM is not set
+# CONFIG_SND_PCM_OSS is not set
+CONFIG_SND_PCM_OSS_PLUGINS=y
+# CONFIG_SND_PCXHR is not set
+# CONFIG_SND_PDAUDIOCF is not set
+# CONFIG_SND_PORTMAN2X4 is not set
+# CONFIG_SND_RAWMIDI is not set
+# CONFIG_SND_RIPTIDE is not set
+# CONFIG_SND_RME32 is not set
+# CONFIG_SND_RME9652 is not set
+# CONFIG_SND_RME96 is not set
+# CONFIG_SND_RTCTIMER is not set
+# CONFIG_SND_SB16 is not set
+# CONFIG_SND_SB8 is not set
+# CONFIG_SND_SBAWE is not set
+# CONFIG_SND_SEQUENCER is not set
+# CONFIG_SND_SERIAL_U16550 is not set
+# CONFIG_SND_SGALAXY is not set
+# CONFIG_SND_SIS7019 is not set
+# CONFIG_SND_SOC is not set
+# CONFIG_SND_SONICVIBES is not set
+# CONFIG_SND_SPI is not set
+# CONFIG_SND_SSCAPE is not set
+# CONFIG_SND_SUPPORT_OLD_API is not set
+# CONFIG_SND_TIMER is not set
+# CONFIG_SND_TRIDENT is not set
+# CONFIG_SND_USB_AUDIO is not set
+# CONFIG_SND_USB_CAIAQ is not set
+# CONFIG_SND_USB_UA101 is not set
+# CONFIG_SND_USB_US122L is not set
+# CONFIG_SND_USB_USX2Y is not set
+CONFIG_SND_USB=y
+# CONFIG_SND_VERBOSE_PRINTK is not set
+CONFIG_SND_VERBOSE_PROCFS=y
+# CONFIG_SND_VIA82XX is not set
+# CONFIG_SND_VIA82XX_MODEM is not set
+# CONFIG_SND_VIRTUOSO is not set
+# CONFIG_SND_VX222 is not set
+# CONFIG_SND_VXPOCKET is not set
+# CONFIG_SND_WAVEFRONT is not set
+# CONFIG_SND_YMFPCI is not set
+# CONFIG_SNI_RM is not set
+# CONFIG_SOC_CAMERA is not set
+# CONFIG_SOFT_WATCHDOG is not set
+# CONFIG_SOLARIS_X86_PARTITION is not set
+# CONFIG_SOLO6X10 is not set
+# CONFIG_SONY_LAPTOP is not set
+# CONFIG_SONYPI is not set
+# CONFIG_SOUND is not set
+# CONFIG_SOUND_PRIME is not set
+# CONFIG_SPARSE_IRQ is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+# CONFIG_SPARSE_RCU_POINTER is not set
+# CONFIG_SPI_BUTTERFLY is not set
+# CONFIG_SPI_DEBUG is not set
+# CONFIG_SPI_DESIGNWARE is not set
+# CONFIG_SPI_GPIO_OLD is not set
+# CONFIG_SPI is not set
+# CONFIG_SPI_LM70_LLP is not set
+# CONFIG_SPI_MASTER is not set
+# CONFIG_SPINLOCK_TEST is not set
+# CONFIG_SPI_ORION is not set
+# CONFIG_SPI_RB4XX_CPLD is not set
+# CONFIG_SPI_RB4XX is not set
+# CONFIG_SPI_SPIDEV is not set
+# CONFIG_SPI_TLE62X0 is not set
+# CONFIG_SPI_TOPCLIFF_PCH is not set
+# CONFIG_SPI_VSC7385 is not set
+# CONFIG_SPI_XILINX is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_SQUASHFS_EMBEDDED is not set
+CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3
+CONFIG_SQUASHFS_LZMA=y
+# CONFIG_SQUASHFS_LZO is not set
+# CONFIG_SQUASHFS_XATTR is not set
+# CONFIG_SQUASHFS_XATTRS is not set
+CONFIG_SQUASHFS_XZ=y
+CONFIG_SQUASHFS=y
+# CONFIG_SSB_DEBUG is not set
+# CONFIG_SSB is not set
+# CONFIG_SSB_PCMCIAHOST is not set
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB_SDIOHOST is not set
+# CONFIG_SSB_SILENT is not set
+# CONFIG_SSFDC is not set
+# CONFIG_STACK_TRACER is not set
+CONFIG_STACKTRACE_SUPPORT=y
+# CONFIG_STAGING_EXCLUDE_BUILD is not set
+CONFIG_STAGING=y
+CONFIG_STANDALONE=y
+# CONFIG_ST_BT is not set
+CONFIG_STDBINUTILS=y
+# CONFIG_STE10XP is not set
+# CONFIG_STMMAC_ETH is not set
+CONFIG_STP=y
+# CONFIG_STRICT_DEVMEM is not set
+CONFIG_STRIP_ASM_SYMS=y
+# CONFIG_STUB_POULSBO is not set
+# CONFIG_SUNDANCE is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_SUN_PARTITION is not set
+# CONFIG_SUNRPC_GSS is not set
+# CONFIG_SUNRPC is not set
+CONFIG_SWAP=y
+# CONFIG_SWCONFIG is not set
+# CONFIG_SYNCLINK_CS is not set
+CONFIG_SYN_COOKIES=y
+CONFIG_SYSCTL_SYSCALL_CHECK=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_SYSCTL=y
+# CONFIG_SYSFS_DEPRECATED is not set
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
+CONFIG_SYSFS=y
+# CONFIG_SYS_HYPERVISOR is not set
+# CONFIG_SYSV68_PARTITION is not set
+# CONFIG_SYSV_FS is not set
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_SYSVIPC=y
+# CONFIG_TARGET_CORE is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_TC35815 is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_TCIC is not set
+CONFIG_TCP_CONG_ADVANCED=y
+# CONFIG_TCP_CONG_BIC is not set
+# CONFIG_TCP_CONG_CUBIC is not set
+# CONFIG_TCP_CONG_HSTCP is not set
+# CONFIG_TCP_CONG_HTCP is not set
+# CONFIG_TCP_CONG_HYBLA is not set
+# CONFIG_TCP_CONG_ILLINOIS is not set
+# CONFIG_TCP_CONG_LP is not set
+# CONFIG_TCP_CONG_SCALABLE is not set
+# CONFIG_TCP_CONG_VEGAS is not set
+# CONFIG_TCP_CONG_VENO is not set
+CONFIG_TCP_CONG_WESTWOOD=y
+# CONFIG_TCP_CONG_YEAH is not set
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_TEST_POWER is not set
+# CONFIG_TEXTSEARCH_BM is not set
+# CONFIG_TEXTSEARCH_FSM is not set
+# CONFIG_TEXTSEARCH_KMP is not set
+CONFIG_TEXTSEARCH=y
+# CONFIG_THERMAL_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_THRUSTMASTER_FF is not set
+CONFIG_TICK_ONESHOT=y
+# CONFIG_TI_DAC7512 is not set
+# CONFIG_TIFM_CORE is not set
+# CONFIG_TIGON3 is not set
+CONFIG_TIMERFD=y
+# CONFIG_TIMER_STATS is not set
+CONFIG_TINY_RCU=y
+# CONFIG_TIPC is not set
+# CONFIG_TI_ST is not set
+# CONFIG_TLAN is not set
+# CONFIG_TMD_HERMES is not set
+# CONFIG_TMPFS_POSIX_ACL is not set
+CONFIG_TMPFS=y
+# CONFIG_TOUCHSCREEN_AD7877 is not set
+# CONFIG_TOUCHSCREEN_AD7879_I2C is not set
+# CONFIG_TOUCHSCREEN_AD7879 is not set
+# CONFIG_TOUCHSCREEN_AD7879_SPI is not set
+# CONFIG_TOUCHSCREEN_ADS7846 is not set
+# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
+# CONFIG_TOUCHSCREEN_EETI is not set
+# CONFIG_TOUCHSCREEN_ELO is not set
+# CONFIG_TOUCHSCREEN_FUJITSU is not set
+# CONFIG_TOUCHSCREEN_GUNZE is not set
+# CONFIG_TOUCHSCREEN_INEXIO is not set
+# CONFIG_TOUCHSCREEN_MCS5000 is not set
+# CONFIG_TOUCHSCREEN_MK712 is not set
+# CONFIG_TOUCHSCREEN_MTOUCH is not set
+# CONFIG_TOUCHSCREEN_PENMOUNT is not set
+# CONFIG_TOUCHSCREEN_QT602240 is not set
+# CONFIG_TOUCHSCREEN_S3C2410 is not set
+# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
+# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
+# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
+# CONFIG_TOUCHSCREEN_TPS6507X is not set
+# CONFIG_TOUCHSCREEN_TSC2007 is not set
+# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
+# CONFIG_TOUCHSCREEN_W90X900 is not set
+# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
+# CONFIG_TPS65010 is not set
+# CONFIG_TPS6507X is not set
+# CONFIG_TRACE_BRANCH_PROFILING is not set
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_TRACING_SUPPORT=y
+CONFIG_TRAD_SIGNALS=y
+# CONFIG_TRANZPORT is not set
+# CONFIG_TREE_PREEMPT_RCU is not set
+# CONFIG_TREE_RCU is not set
+# CONFIG_TREE_RCU_TRACE is not set
+# CONFIG_TR is not set
+# CONFIG_TTY_PRINTK is not set
+# CONFIG_TUN is not set
+# CONFIG_TWL4030_CORE is not set
+# CONFIG_UACCESS_WITH_MEMCPY is not set
+# CONFIG_UCB1400_CORE is not set
+# CONFIG_UDF_FS is not set
+CONFIG_UDF_NLS=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_UFS_FS is not set
+# CONFIG_UIO is not set
+# CONFIG_ULTRIX_PARTITION is not set
+CONFIG_UNIX98_PTYS=y
+# CONFIG_UNIXWARE_DISKLABEL is not set
+CONFIG_UNIX=y
+# CONFIG_UNUSED_SYMBOLS is not set
+# CONFIG_USB_ACM is not set
+# CONFIG_USB_ADUTUX is not set
+CONFIG_USB_ALI_M5632=y
+CONFIG_USB_AN2720=y
+# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set
+# CONFIG_USB_APPLEDISPLAY is not set
+CONFIG_USB_ARCH_HAS_EHCI=y
+CONFIG_USB_ARCH_HAS_HCD=y
+CONFIG_USB_ARCH_HAS_OHCI=y
+CONFIG_USB_ARMLINUX=y
+# CONFIG_USB_ATM is not set
+CONFIG_USB_BELKIN=y
+# CONFIG_USB_C67X00_HCD is not set
+# CONFIG_USB_CATC is not set
+# CONFIG_USB_CXACRU is not set
+# CONFIG_USB_CYPRESS_CY7C63 is not set
+# CONFIG_USB_CYTHERM is not set
+# CONFIG_USB_DABUSB is not set
+# CONFIG_USB_DEBUG is not set
+# CONFIG_USB_DEVICE_CLASS is not set
+CONFIG_USB_DEVICEFS=y
+# CONFIG_USB_DSBR is not set
+# CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_EHCI_HCD_PPC_OF is not set
+CONFIG_USB_EHCI_ROOT_HUB_TT=y
+# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+# CONFIG_USB_EMI26 is not set
+# CONFIG_USB_EMI62 is not set
+# CONFIG_USB_ENESTORAGE is not set
+# CONFIG_USB_EPSON2888 is not set
+# CONFIG_USB_ET61X251 is not set
+CONFIG_USB_EZUSB=y
+# CONFIG_USB_FTDI_ELAN is not set
+# CONFIG_USB_GADGET_DEBUG is not set
+# CONFIG_USB_GADGET is not set
+# CONFIG_USB_GL860 is not set
+# CONFIG_USB_G_MULTI is not set
+# CONFIG_USB_G_NOKIA is not set
+# CONFIG_USB_GPIO_VBUS is not set
+# CONFIG_USB_GSPCA_BENQ is not set
+# CONFIG_USB_GSPCA_CONEX is not set
+# CONFIG_USB_GSPCA_CPIA1 is not set
+# CONFIG_USB_GSPCA_ETOMS is not set
+# CONFIG_USB_GSPCA_FINEPIX is not set
+# CONFIG_USB_GSPCA is not set
+# CONFIG_USB_GSPCA_JEILINJ is not set
+# CONFIG_USB_GSPCA_KONICA is not set
+# CONFIG_USB_GSPCA_MARS is not set
+# CONFIG_USB_GSPCA_MR97310A is not set
+# CONFIG_USB_GSPCA_OV519 is not set
+# CONFIG_USB_GSPCA_OV534_9 is not set
+# CONFIG_USB_GSPCA_OV534 is not set
+# CONFIG_USB_GSPCA_PAC207 is not set
+# CONFIG_USB_GSPCA_PAC7302 is not set
+# CONFIG_USB_GSPCA_PAC7311 is not set
+# CONFIG_USB_GSPCA_SN9C2028 is not set
+# CONFIG_USB_GSPCA_SN9C20X is not set
+# CONFIG_USB_GSPCA_SONIXB is not set
+# CONFIG_USB_GSPCA_SONIXJ is not set
+# CONFIG_USB_GSPCA_SPCA1528 is not set
+# CONFIG_USB_GSPCA_SPCA500 is not set
+# CONFIG_USB_GSPCA_SPCA501 is not set
+# CONFIG_USB_GSPCA_SPCA505 is not set
+# CONFIG_USB_GSPCA_SPCA506 is not set
+# CONFIG_USB_GSPCA_SPCA508 is not set
+# CONFIG_USB_GSPCA_SPCA561 is not set
+# CONFIG_USB_GSPCA_SQ905C is not set
+# CONFIG_USB_GSPCA_SQ905 is not set
+# CONFIG_USB_GSPCA_SQ930X is not set
+# CONFIG_USB_GSPCA_STK014 is not set
+# CONFIG_USB_GSPCA_STV0680 is not set
+# CONFIG_USB_GSPCA_SUNPLUS is not set
+# CONFIG_USB_GSPCA_T613 is not set
+# CONFIG_USB_GSPCA_TV8532 is not set
+# CONFIG_USB_GSPCA_VC032X is not set
+# CONFIG_USB_GSPCA_XIRLINK_CIT is not set
+# CONFIG_USB_GSPCA_ZC3XX is not set
+# CONFIG_USB_HIDDEV is not set
+# CONFIG_USB_HID is not set
+# CONFIG_USB_HSO is not set
+# CONFIG_USB_HWA_HCD is not set
+# CONFIG_USB_IBMCAM is not set
+# CONFIG_USB_IDMOUSE is not set
+# CONFIG_USB_IOWARRIOR is not set
+# CONFIG_USB_IP_COMMON is not set
+# CONFIG_USB_IPHETH is not set
+# CONFIG_USB_ISIGHTFW is not set
+# CONFIG_USB is not set
+# CONFIG_USB_ISP116X_HCD is not set
+# CONFIG_USB_ISP1362_HCD is not set
+# CONFIG_USB_ISP1760_HCD is not set
+# CONFIG_USB_KAWETH is not set
+# CONFIG_USB_KBD is not set
+# CONFIG_USB_KC2190 is not set
+# CONFIG_USB_KONICAWC is not set
+# CONFIG_USB_LCD is not set
+# CONFIG_USB_LD is not set
+# CONFIG_USB_LED is not set
+# CONFIG_USB_LEGOTOWER is not set
+# CONFIG_USB_LIBUSUAL is not set
+# CONFIG_USB_M5602 is not set
+# CONFIG_USB_MASS_STORAGE is not set
+# CONFIG_USB_MDC800 is not set
+# CONFIG_USB_MICROTEK is not set
+# CONFIG_USB_MON is not set
+# CONFIG_USB_MOUSE is not set
+# CONFIG_USB_MUSB_HDRC is not set
+# CONFIG_USB_NET_AX8817X is not set
+# CONFIG_USB_NET_CDC_EEM is not set
+# CONFIG_USB_NET_CDCETHER is not set
+# CONFIG_USB_NET_CDC_SUBSET is not set
+# CONFIG_USB_NET_CX82310_ETH is not set
+# CONFIG_USB_NET_DM9601 is not set
+# CONFIG_USB_NET_GL620A is not set
+# CONFIG_USB_NET_INT51X1 is not set
+# CONFIG_USB_NET_MCS7830 is not set
+# CONFIG_USB_NET_NET1080 is not set
+# CONFIG_USB_NET_PLUSB is not set
+# CONFIG_USB_NET_RNDIS_HOST is not set
+# CONFIG_USB_NET_RNDIS_WLAN is not set
+# CONFIG_USB_NET_SMSC75XX is not set
+# CONFIG_USB_NET_SMSC95XX is not set
+# CONFIG_USB_NET_ZAURUS is not set
+# CONFIG_USB_OHCI_HCD is not set
+# CONFIG_USB_OHCI_HCD_PCI is not set
+# CONFIG_USB_OHCI_HCD_PPC_OF is not set
+# CONFIG_USB_OHCI_HCD_PPC_SOC is not set
+# CONFIG_USB_OHCI_HCD_SSB is not set
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+# CONFIG_USB_OTG_BLACKLIST_HUB is not set
+# CONFIG_USB_OTG is not set
+# CONFIG_USB_OTG_WHITELIST is not set
+# CONFIG_USB_OXU210HP_HCD is not set
+# CONFIG_USBPCWATCHDOG is not set
+# CONFIG_USB_PEGASUS is not set
+# CONFIG_USB_PRINTER is not set
+# CONFIG_USB_PWC_INPUT_EVDEV is not set
+# CONFIG_USB_R8A66597_HCD is not set
+# CONFIG_USB_RIO500 is not set
+# CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_S2255 is not set
+# CONFIG_USB_SE401 is not set
+# CONFIG_USB_SERIAL_AIRCABLE is not set
+# CONFIG_USB_SERIAL_ARK3116 is not set
+# CONFIG_USB_SERIAL_BELKIN is not set
+# CONFIG_USB_SERIAL_CH341 is not set
+# CONFIG_USB_SERIAL_CP210X is not set
+# CONFIG_USB_SERIAL_CYBERJACK is not set
+# CONFIG_USB_SERIAL_CYPRESS_M8 is not set
+# CONFIG_USB_SERIAL_DEBUG is not set
+# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set
+# CONFIG_USB_SERIAL_EDGEPORT is not set
+# CONFIG_USB_SERIAL_EDGEPORT_TI is not set
+# CONFIG_USB_SERIAL_EMPEG is not set
+# CONFIG_USB_SERIAL_FTDI_SIO is not set
+# CONFIG_USB_SERIAL_FUNSOFT is not set
+# CONFIG_USB_SERIAL_GARMIN is not set
+CONFIG_USB_SERIAL_GENERIC=y
+# CONFIG_USB_SERIAL_HP4X is not set
+# CONFIG_USB_SERIAL_IPAQ is not set
+# CONFIG_USB_SERIAL_IPW is not set
+# CONFIG_USB_SERIAL_IR is not set
+# CONFIG_USB_SERIAL is not set
+# CONFIG_USB_SERIAL_IUU is not set
+# CONFIG_USB_SERIAL_KEYSPAN is not set
+CONFIG_USB_SERIAL_KEYSPAN_MPR=y
+# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set
+CONFIG_USB_SERIAL_KEYSPAN_USA18X=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19QI=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19QW=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19W=y
+CONFIG_USB_SERIAL_KEYSPAN_USA19=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28XA=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28XB=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28X=y
+CONFIG_USB_SERIAL_KEYSPAN_USA28=y
+CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y
+CONFIG_USB_SERIAL_KEYSPAN_USA49W=y
+# CONFIG_USB_SERIAL_KLSI is not set
+# CONFIG_USB_SERIAL_KOBIL_SCT is not set
+# CONFIG_USB_SERIAL_MCT_U232 is not set
+# CONFIG_USB_SERIAL_MOS7720 is not set
+# CONFIG_USB_SERIAL_MOS7840 is not set
+# CONFIG_USB_SERIAL_MOTOROLA is not set
+# CONFIG_USB_SERIAL_NAVMAN is not set
+# CONFIG_USB_SERIAL_OMNINET is not set
+# CONFIG_USB_SERIAL_OPTICON is not set
+# CONFIG_USB_SERIAL_OPTION is not set
+# CONFIG_USB_SERIAL_OTI6858 is not set
+# CONFIG_USB_SERIAL_PL2303 is not set
+# CONFIG_USB_SERIAL_QCAUX is not set
+# CONFIG_USB_SERIAL_QUALCOMM is not set
+# CONFIG_USB_SERIAL_QUATECH2 is not set
+# CONFIG_USB_SERIAL_QUATECH_USB2 is not set
+# CONFIG_USB_SERIAL_SAFE is not set
+CONFIG_USB_SERIAL_SAFE_PADDED=y
+# CONFIG_USB_SERIAL_SAMBA is not set
+# CONFIG_USB_SERIAL_SIEMENS_MPI is not set
+# CONFIG_USB_SERIAL_SIERRAWIRELESS is not set
+# CONFIG_USB_SERIAL_SPCP8X5 is not set
+# CONFIG_USB_SERIAL_SSU100 is not set
+# CONFIG_USB_SERIAL_SYMBOL is not set
+# CONFIG_USB_SERIAL_TI is not set
+# CONFIG_USB_SERIAL_VISOR is not set
+# CONFIG_USB_SERIAL_VIVOPAY_SERIAL is not set
+# CONFIG_USB_SERIAL_WHITEHEAT is not set
+# CONFIG_USB_SERIAL_XIRCOM is not set
+# CONFIG_USB_SERIAL_ZIO is not set
+# CONFIG_USB_SEVSEG is not set
+# CONFIG_USB_SIERRA_NET is not set
+# CONFIG_USB_SISUSBVGA is not set
+# CONFIG_USB_SL811_HCD is not set
+# CONFIG_USB_SN9C102 is not set
+# CONFIG_USB_SPEEDTOUCH is not set
+# CONFIG_USB_STKWEBCAM is not set
+CONFIG_USB_STORAGE_ALAUDA=y
+# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set
+CONFIG_USB_STORAGE_DATAFAB=y
+# CONFIG_USB_STORAGE_DEBUG is not set
+CONFIG_USB_STORAGE_FREECOM=y
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE is not set
+CONFIG_USB_STORAGE_JUMPSHOT=y
+CONFIG_USB_STORAGE_KARMA=y
+# CONFIG_USB_STORAGE_ONETOUCH is not set
+CONFIG_USB_STORAGE_SDDR09=y
+CONFIG_USB_STORAGE_SDDR55=y
+CONFIG_USB_STORAGE_USBAT=y
+# CONFIG_USB_STV06XX is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_USB_SUSPEND is not set
+# CONFIG_USB_TEST is not set
+# CONFIG_USB_TMC is not set
+# CONFIG_USB_TRANCEVIBRATOR is not set
+# CONFIG_USB_UAS is not set
+# CONFIG_USB_UEAGLEATM is not set
+# CONFIG_USB_ULPI is not set
+# CONFIG_USB_USBNET is not set
+# CONFIG_USB_USS720 is not set
+# CONFIG_USB_VICAM is not set
+CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV=y
+# CONFIG_USB_VIDEO_CLASS is not set
+# CONFIG_USB_WDM is not set
+# CONFIG_USB_WHCI_HCD is not set
+# CONFIG_USB_WUSB_CBAF is not set
+# CONFIG_USB_WUSB is not set
+# CONFIG_USB_XHCI_HCD is not set
+# CONFIG_USB_XUSBATM is not set
+# CONFIG_USB_YUREX is not set
+# CONFIG_USB_ZD1201 is not set
+# CONFIG_USB_ZR364XX is not set
+# CONFIG_USE_GENERIC_SMP_HELPERS is not set
+# CONFIG_USE_OF is not set
+# CONFIG_UTS_NS is not set
+# CONFIG_UWB is not set
+# CONFIG_V4L_MEM2MEM_DRIVERS is not set
+# CONFIG_VETH is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_VGA_ARB is not set
+# CONFIG_VGASTATE is not set
+# CONFIG_VGA_SWITCHEROO is not set
+# CONFIG_VIA_RHINE is not set
+# CONFIG_VIA_VELOCITY is not set
+# CONFIG_VIDEO_ADV7170 is not set
+# CONFIG_VIDEO_ADV7175 is not set
+# CONFIG_VIDEO_ADV7180 is not set
+# CONFIG_VIDEO_ADV7343 is not set
+# CONFIG_VIDEO_ADV_DEBUG is not set
+# CONFIG_VIDEO_AK881X is not set
+# CONFIG_VIDEO_ALLOW_V4L1 is not set
+# CONFIG_VIDEO_BT819 is not set
+# CONFIG_VIDEO_BT848 is not set
+# CONFIG_VIDEO_BT856 is not set
+# CONFIG_VIDEO_BT866 is not set
+# CONFIG_VIDEO_BWQCAM is not set
+# CONFIG_VIDEO_CAFE_CCIC is not set
+# CONFIG_VIDEO_CAPTURE_DRIVERS is not set
+# CONFIG_VIDEO_CPIA is not set
+# CONFIG_VIDEO_CQCAM is not set
+# CONFIG_VIDEO_CS5345 is not set
+# CONFIG_VIDEO_CS53L32A is not set
+# CONFIG_VIDEO_CX231XX is not set
+# CONFIG_VIDEO_CX2341X is not set
+# CONFIG_VIDEO_CX25840 is not set
+# CONFIG_VIDEO_CX88 is not set
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_VIDEO_DT3155 is not set
+# CONFIG_VIDEO_EM28XX is not set
+# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
+# CONFIG_VIDEO_GO7007 is not set
+# CONFIG_VIDEO_HDPVR is not set
+# CONFIG_VIDEO_HELPER_CHIPS_AUTO is not set
+# CONFIG_VIDEO_HEXIUM_GEMINI is not set
+# CONFIG_VIDEO_HEXIUM_ORION is not set
+# CONFIG_VIDEO_IR_I2C is not set
+# CONFIG_VIDEO_IVTV is not set
+# CONFIG_VIDEO_KS0127 is not set
+# CONFIG_VIDEO_M52790 is not set
+# CONFIG_VIDEO_MEDIA is not set
+# CONFIG_VIDEO_MSP3400 is not set
+# CONFIG_VIDEO_MT9V011 is not set
+# CONFIG_VIDEO_MXB is not set
+# CONFIG_VIDEO_OUTPUT_CONTROL is not set
+# CONFIG_VIDEO_OV7670 is not set
+# CONFIG_VIDEO_PMS is not set
+# CONFIG_VIDEO_PVRUSB2 is not set
+# CONFIG_VIDEO_SAA5246A is not set
+# CONFIG_VIDEO_SAA5249 is not set
+# CONFIG_VIDEO_SAA6588 is not set
+# CONFIG_VIDEO_SAA7110 is not set
+# CONFIG_VIDEO_SAA711X is not set
+# CONFIG_VIDEO_SAA7127 is not set
+# CONFIG_VIDEO_SAA7134 is not set
+# CONFIG_VIDEO_SAA717X is not set
+# CONFIG_VIDEO_SAA7185 is not set
+# CONFIG_VIDEO_SAA7191 is not set
+# CONFIG_VIDEO_SH_MOBILE_CEU is not set
+# CONFIG_VIDEO_SR030PC30 is not set
+# CONFIG_VIDEO_STRADIS is not set
+# CONFIG_VIDEO_TCM825X is not set
+# CONFIG_VIDEO_TDA7432 is not set
+# CONFIG_VIDEO_TDA9840 is not set
+# CONFIG_VIDEO_TDA9875 is not set
+# CONFIG_VIDEO_TEA6415C is not set
+# CONFIG_VIDEO_TEA6420 is not set
+# CONFIG_VIDEO_THS7303 is not set
+# CONFIG_VIDEO_TLV320AIC23B is not set
+# CONFIG_VIDEO_TM6000 is not set
+# CONFIG_VIDEO_TVAUDIO is not set
+# CONFIG_VIDEO_TVP514X is not set
+# CONFIG_VIDEO_TVP5150 is not set
+# CONFIG_VIDEO_TVP7002 is not set
+# CONFIG_VIDEO_UPD64031A is not set
+# CONFIG_VIDEO_UPD64083 is not set
+# CONFIG_VIDEO_USBVISION is not set
+CONFIG_VIDEO_V4L1_COMPAT=y
+# CONFIG_VIDEO_V4L1 is not set
+# CONFIG_VIDEO_V4L2_COMMON is not set
+# CONFIG_VIDEO_V4L2 is not set
+# CONFIG_VIDEO_VIVI is not set
+# CONFIG_VIDEO_VP27SMPX is not set
+# CONFIG_VIDEO_VPX3220 is not set
+# CONFIG_VIDEO_WM8739 is not set
+# CONFIG_VIDEO_WM8775 is not set
+# CONFIG_VIDEO_ZORAN is not set
+# CONFIG_VIRQ_DEBUG is not set
+CONFIG_VIRT_TO_BUS=y
+# CONFIG_VIRTUALIZATION is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_VLAN_8021Q_GVRP is not set
+CONFIG_VLAN_8021Q=y
+# CONFIG_VME_BUS is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_VMSPLIT_1G is not set
+# CONFIG_VMSPLIT_2G is not set
+# CONFIG_VMSPLIT_2G_OPT is not set
+# CONFIG_VMSPLIT_3G_OPT is not set
+CONFIG_VMSPLIT_3G=y
+# CONFIG_VMXNET3 is not set
+# CONFIG_VT6655 is not set
+# CONFIG_VT6656 is not set
+# CONFIG_VT is not set
+# CONFIG_VXFS_FS is not set
+# CONFIG_W1_CON is not set
+# CONFIG_W1 is not set
+# CONFIG_W1_MASTER_DS1WM is not set
+# CONFIG_W1_MASTER_DS2482 is not set
+# CONFIG_W1_MASTER_DS2490 is not set
+# CONFIG_W1_MASTER_GPIO is not set
+# CONFIG_W1_MASTER_MATROX is not set
+# CONFIG_W1_SLAVE_BQ27000 is not set
+# CONFIG_W1_SLAVE_DS2431 is not set
+# CONFIG_W1_SLAVE_DS2433 is not set
+# CONFIG_W1_SLAVE_DS2760 is not set
+# CONFIG_W1_SLAVE_SMEM is not set
+# CONFIG_W1_SLAVE_THERM is not set
+# CONFIG_W83627HF_WDT is not set
+# CONFIG_W83697HF_WDT is not set
+# CONFIG_W83877F_WDT is not set
+# CONFIG_W83977F_WDT is not set
+# CONFIG_WAN is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_WANXL is not set
+# CONFIG_WATCHDOG_NOWAYOUT is not set
+CONFIG_WATCHDOG=y
+# CONFIG_WDTPCI is not set
+CONFIG_WEXT_CORE=y
+CONFIG_WEXT_PRIV=y
+CONFIG_WEXT_PROC=y
+CONFIG_WEXT_SPY=y
+# CONFIG_WIMAX is not set
+CONFIG_WIRELESS_EXT_SYSFS=y
+CONFIG_WIRELESS_EXT=y
+CONFIG_WIRELESS=y
+# CONFIG_WLAGS49_H25 is not set
+# CONFIG_WLAGS49_H2 is not set
+CONFIG_WLAN=y
+# CONFIG_WORKQUEUE_TRACER is not set
+# CONFIG_WR_PPMC is not set
+# CONFIG_X25 is not set
+# CONFIG_XFRM_IPCOMP is not set
+# CONFIG_XFRM_MIGRATE is not set
+# CONFIG_XFRM_STATISTICS is not set
+# CONFIG_XFRM_SUB_POLICY is not set
+# CONFIG_XFRM_USER is not set
+CONFIG_XFRM=y
+# CONFIG_XFS_DEBUG is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_XFS_POSIX_ACL is not set
+# CONFIG_XFS_QUOTA is not set
+# CONFIG_XFS_RT is not set
+# CONFIG_XILINX_EMACLITE is not set
+# CONFIG_XILINX_LL_TEMAC is not set
+# CONFIG_XIP_KERNEL is not set
+# CONFIG_XZ_DEC_ARM is not set
+# CONFIG_XZ_DEC_ARMTHUMB is not set
+# CONFIG_XZ_DEC_IA64 is not set
+# CONFIG_XZ_DEC_POWERPC is not set
+# CONFIG_XZ_DEC_SPARC is not set
+# CONFIG_XZ_DEC_TEST is not set
+# CONFIG_XZ_DEC_X86 is not set
+CONFIG_XZ_DEC=y
+# CONFIG_YAFFS_FS is not set
+# CONFIG_YAM is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_YENTA is not set
+# CONFIG_YENTA_O2 is not set
+# CONFIG_YENTA_RICOH is not set
+# CONFIG_YENTA_TI is not set
+# CONFIG_YENTA_TOSHIBA is not set
+# CONFIG_ZD1211RW_DEBUG is not set
+# CONFIG_ZD1211RW is not set
+# CONFIG_ZEROPLUS_FF is not set
+CONFIG_ZISOFS=y
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_ZONE_DMA=y
+# CONFIG_ZRAM is not set
diff --git a/target/linux/generic/patches-2.6.38/001-fix_localversion.patch b/target/linux/generic/patches-2.6.38/001-fix_localversion.patch
new file mode 100644
index 0000000000..70ed0ff3cb
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/001-fix_localversion.patch
@@ -0,0 +1,11 @@
+--- a/scripts/setlocalversion
++++ b/scripts/setlocalversion
+@@ -164,7 +164,7 @@ else
+ 	# annotated or signed tagged state (as git describe only
+ 	# looks at signed or annotated tags - git tag -a/-s) and
+ 	# LOCALVERSION= is not specified
+-	if test "${LOCALVERSION+set}" != "set"; then
++	if test "${CONFIG_LOCALVERSION+set}" != "set"; then
+ 		scm=$(scm_version --short)
+ 		res="$res${scm:++}"
+ 	fi
diff --git a/target/linux/generic/patches-2.6.38/008-jffs2_make_lzma_available.patch b/target/linux/generic/patches-2.6.38/008-jffs2_make_lzma_available.patch
new file mode 100644
index 0000000000..8915e161bb
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/008-jffs2_make_lzma_available.patch
@@ -0,0 +1,5142 @@
+--- a/fs/jffs2/Kconfig
++++ b/fs/jffs2/Kconfig
+@@ -139,6 +139,15 @@ config JFFS2_LZO
+ 	  This feature was added in July, 2007. Say 'N' if you need
+ 	  compatibility with older bootloaders or kernels.
+ 
++config JFFS2_LZMA
++	bool "JFFS2 LZMA compression support" if JFFS2_COMPRESSION_OPTIONS
++	select LZMA_COMPRESS
++	select LZMA_DECOMPRESS
++	depends on JFFS2_FS
++	default n
++	help
++	  JFFS2 wrapper to the LZMA C SDK
++
+ config JFFS2_RTIME
+ 	bool "JFFS2 RTIME compression support" if JFFS2_COMPRESSION_OPTIONS
+ 	depends on JFFS2_FS
+--- a/fs/jffs2/Makefile
++++ b/fs/jffs2/Makefile
+@@ -18,4 +18,7 @@ jffs2-$(CONFIG_JFFS2_RUBIN)	+= compr_rub
+ jffs2-$(CONFIG_JFFS2_RTIME)	+= compr_rtime.o
+ jffs2-$(CONFIG_JFFS2_ZLIB)	+= compr_zlib.o
+ jffs2-$(CONFIG_JFFS2_LZO)	+= compr_lzo.o
++jffs2-$(CONFIG_JFFS2_LZMA)      += compr_lzma.o
+ jffs2-$(CONFIG_JFFS2_SUMMARY)   += summary.o
++
++CFLAGS_compr_lzma.o += -Iinclude/linux -Ilib/lzma
+--- a/fs/jffs2/compr.c
++++ b/fs/jffs2/compr.c
+@@ -320,6 +320,9 @@ int __init jffs2_compressors_init(void)
+ #ifdef CONFIG_JFFS2_LZO
+ 	jffs2_lzo_init();
+ #endif
++#ifdef CONFIG_JFFS2_LZMA
++        jffs2_lzma_init();
++#endif
+ /* Setting default compression mode */
+ #ifdef CONFIG_JFFS2_CMODE_NONE
+ 	jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
+@@ -343,6 +346,9 @@ int __init jffs2_compressors_init(void)
+ int jffs2_compressors_exit(void)
+ {
+ /* Unregistering compressors */
++#ifdef CONFIG_JFFS2_LZMA
++        jffs2_lzma_exit();
++#endif
+ #ifdef CONFIG_JFFS2_LZO
+ 	jffs2_lzo_exit();
+ #endif
+--- a/fs/jffs2/compr.h
++++ b/fs/jffs2/compr.h
+@@ -29,9 +29,9 @@
+ #define JFFS2_DYNRUBIN_PRIORITY  20
+ #define JFFS2_LZARI_PRIORITY     30
+ #define JFFS2_RTIME_PRIORITY     50
+-#define JFFS2_ZLIB_PRIORITY      60
+-#define JFFS2_LZO_PRIORITY       80
+-
++#define JFFS2_LZMA_PRIORITY      70
++#define JFFS2_ZLIB_PRIORITY      80
++#define JFFS2_LZO_PRIORITY       90
+ 
+ #define JFFS2_RUBINMIPS_DISABLED /* RUBINs will be used only */
+ #define JFFS2_DYNRUBIN_DISABLED  /*	   for decompression */
+@@ -99,5 +99,9 @@ void jffs2_zlib_exit(void);
+ int jffs2_lzo_init(void);
+ void jffs2_lzo_exit(void);
+ #endif
++#ifdef CONFIG_JFFS2_LZMA
++int jffs2_lzma_init(void);
++void jffs2_lzma_exit(void);
++#endif
+ 
+ #endif /* __JFFS2_COMPR_H__ */
+--- /dev/null
++++ b/fs/jffs2/compr_lzma.c
+@@ -0,0 +1,128 @@
++/*
++ * JFFS2 -- Journalling Flash File System, Version 2.
++ *
++ * For licensing information, see the file 'LICENCE' in this directory.
++ *
++ * JFFS2 wrapper to the LZMA C SDK
++ *
++ */
++
++#include <linux/lzma.h>
++#include "compr.h"
++
++#ifdef __KERNEL__
++	static DEFINE_MUTEX(deflate_mutex);
++#endif
++
++CLzmaEncHandle *p;
++Byte propsEncoded[LZMA_PROPS_SIZE];
++SizeT propsSize = sizeof(propsEncoded);
++
++STATIC void lzma_free_workspace(void)
++{
++	LzmaEnc_Destroy(p, &lzma_alloc, &lzma_alloc);
++}
++
++STATIC int INIT lzma_alloc_workspace(CLzmaEncProps *props)
++{
++	if ((p = (CLzmaEncHandle *)LzmaEnc_Create(&lzma_alloc)) == NULL)
++	{
++		PRINT_ERROR("Failed to allocate lzma deflate workspace\n");
++		return -ENOMEM;
++	}
++
++	if (LzmaEnc_SetProps(p, props) != SZ_OK)
++	{
++		lzma_free_workspace();
++		return -1;
++	}
++	
++	if (LzmaEnc_WriteProperties(p, propsEncoded, &propsSize) != SZ_OK)
++	{
++		lzma_free_workspace();
++		return -1;
++	}
++
++        return 0;
++}
++
++STATIC int jffs2_lzma_compress(unsigned char *data_in, unsigned char *cpage_out,
++			      uint32_t *sourcelen, uint32_t *dstlen, void *model)
++{
++	SizeT compress_size = (SizeT)(*dstlen);
++	int ret;
++
++	#ifdef __KERNEL__
++		mutex_lock(&deflate_mutex);
++	#endif
++
++	ret = LzmaEnc_MemEncode(p, cpage_out, &compress_size, data_in, *sourcelen,
++		0, NULL, &lzma_alloc, &lzma_alloc);
++
++	#ifdef __KERNEL__
++		mutex_unlock(&deflate_mutex);
++	#endif
++
++	if (ret != SZ_OK)
++		return -1;
++
++	*dstlen = (uint32_t)compress_size;
++
++	return 0;
++}
++
++STATIC int jffs2_lzma_decompress(unsigned char *data_in, unsigned char *cpage_out,
++				 uint32_t srclen, uint32_t destlen, void *model)
++{
++	int ret;
++	SizeT dl = (SizeT)destlen;
++	SizeT sl = (SizeT)srclen;
++	ELzmaStatus status;
++	
++	ret = LzmaDecode(cpage_out, &dl, data_in, &sl, propsEncoded,
++		propsSize, LZMA_FINISH_ANY, &status, &lzma_alloc);
++
++	if (ret != SZ_OK || status == LZMA_STATUS_NOT_FINISHED || dl != (SizeT)destlen)
++		return -1;
++
++	return 0;
++}
++
++static struct jffs2_compressor jffs2_lzma_comp = {
++	.priority = JFFS2_LZMA_PRIORITY,
++	.name = "lzma",
++	.compr = JFFS2_COMPR_LZMA,
++	.compress = &jffs2_lzma_compress,
++	.decompress = &jffs2_lzma_decompress,
++	.disabled = 0,
++};
++
++int INIT jffs2_lzma_init(void)
++{
++        int ret;
++	CLzmaEncProps props;
++	LzmaEncProps_Init(&props);
++
++        props.dictSize = LZMA_BEST_DICT(0x2000);
++        props.level = LZMA_BEST_LEVEL;
++        props.lc = LZMA_BEST_LC;
++        props.lp = LZMA_BEST_LP;
++        props.pb = LZMA_BEST_PB;
++        props.fb = LZMA_BEST_FB;
++
++	ret = lzma_alloc_workspace(&props);
++        if (ret < 0)
++                return ret;
++
++	ret = jffs2_register_compressor(&jffs2_lzma_comp);
++	if (ret)
++		lzma_free_workspace();
++	
++        return ret;
++}
++
++void jffs2_lzma_exit(void)
++{
++	jffs2_unregister_compressor(&jffs2_lzma_comp);
++	lzma_free_workspace();
++}
+--- a/fs/jffs2/super.c
++++ b/fs/jffs2/super.c
+@@ -255,14 +255,41 @@ static int __init init_jffs2_fs(void)
+ 	BUILD_BUG_ON(sizeof(struct jffs2_raw_inode) != 68);
+ 	BUILD_BUG_ON(sizeof(struct jffs2_raw_summary) != 32);
+ 
+-	printk(KERN_INFO "JFFS2 version 2.2."
++	printk(KERN_INFO "JFFS2 version 2.2"
+ #ifdef CONFIG_JFFS2_FS_WRITEBUFFER
+ 	       " (NAND)"
+ #endif
+ #ifdef CONFIG_JFFS2_SUMMARY
+-	       " (SUMMARY) "
++	       " (SUMMARY)"
+ #endif
+-	       " © 2001-2006 Red Hat, Inc.\n");
++#ifdef CONFIG_JFFS2_ZLIB
++	       " (ZLIB)"
++#endif
++#ifdef CONFIG_JFFS2_LZO
++	       " (LZO)"
++#endif
++#ifdef CONFIG_JFFS2_LZMA
++	       " (LZMA)"
++#endif
++#ifdef CONFIG_JFFS2_RTIME
++	       " (RTIME)"
++#endif
++#ifdef CONFIG_JFFS2_RUBIN
++	       " (RUBIN)"
++#endif
++#ifdef  CONFIG_JFFS2_CMODE_NONE
++	       " (CMODE_NONE)"
++#endif
++#ifdef CONFIG_JFFS2_CMODE_PRIORITY
++	       " (CMODE_PRIORITY)"
++#endif
++#ifdef CONFIG_JFFS2_CMODE_SIZE
++	       " (CMODE_SIZE)"
++#endif
++#ifdef CONFIG_JFFS2_CMODE_FAVOURLZO
++	       " (CMODE_FAVOURLZO)"
++#endif
++	       " (c) 2001-2006 Red Hat, Inc.\n");
+ 
+ 	jffs2_inode_cachep = kmem_cache_create("jffs2_i",
+ 					     sizeof(struct jffs2_inode_info),
+--- a/include/linux/jffs2.h
++++ b/include/linux/jffs2.h
+@@ -46,6 +46,7 @@
+ #define JFFS2_COMPR_DYNRUBIN	0x05
+ #define JFFS2_COMPR_ZLIB	0x06
+ #define JFFS2_COMPR_LZO		0x07
++#define JFFS2_COMPR_LZMA	0x08
+ /* Compatibility flags. */
+ #define JFFS2_COMPAT_MASK 0xc000      /* What do to if an unknown nodetype is found */
+ #define JFFS2_NODE_ACCURATE 0x2000
+--- /dev/null
++++ b/include/linux/lzma.h
+@@ -0,0 +1,62 @@
++#ifndef __LZMA_H__
++#define __LZMA_H__
++
++#ifdef __KERNEL__
++	#include <linux/kernel.h>
++	#include <linux/sched.h>
++	#include <linux/slab.h>
++	#include <linux/vmalloc.h>
++	#include <linux/init.h>
++	#define LZMA_MALLOC vmalloc
++	#define LZMA_FREE vfree
++	#define PRINT_ERROR(msg) printk(KERN_WARNING #msg)
++	#define INIT __init
++	#define STATIC static
++#else
++	#include <stdint.h>
++	#include <stdlib.h>
++	#include <stdio.h>
++	#include <unistd.h>
++	#include <string.h>
++	#include <asm/types.h>
++	#include <errno.h>
++	#include <linux/jffs2.h>
++	#ifndef PAGE_SIZE
++		extern int page_size;
++		#define PAGE_SIZE page_size
++	#endif
++	#define LZMA_MALLOC malloc
++	#define LZMA_FREE free
++	#define PRINT_ERROR(msg) fprintf(stderr, msg)
++	#define INIT
++	#define STATIC
++#endif
++
++#include "lzma/LzmaDec.h"
++#include "lzma/LzmaEnc.h"
++
++#define LZMA_BEST_LEVEL (9)
++#define LZMA_BEST_LC    (0)
++#define LZMA_BEST_LP    (0)
++#define LZMA_BEST_PB    (0)
++#define LZMA_BEST_FB  (273)
++
++#define LZMA_BEST_DICT(n) (((int)((n) / 2)) * 2)
++
++static void *p_lzma_malloc(void *p, size_t size)
++{
++        if (size == 0)
++                return NULL;
++
++        return LZMA_MALLOC(size);
++}
++
++static void p_lzma_free(void *p, void *address)
++{
++        if (address != NULL)
++                LZMA_FREE(address);
++}
++
++static ISzAlloc lzma_alloc = {p_lzma_malloc, p_lzma_free};
++
++#endif
+--- /dev/null
++++ b/include/linux/lzma/LzFind.h
+@@ -0,0 +1,115 @@
++/* LzFind.h -- Match finder for LZ algorithms
++2009-04-22 : Igor Pavlov : Public domain */
++
++#ifndef __LZ_FIND_H
++#define __LZ_FIND_H
++
++#include "Types.h"
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++typedef UInt32 CLzRef;
++
++typedef struct _CMatchFinder
++{
++  Byte *buffer;
++  UInt32 pos;
++  UInt32 posLimit;
++  UInt32 streamPos;
++  UInt32 lenLimit;
++
++  UInt32 cyclicBufferPos;
++  UInt32 cyclicBufferSize; /* it must be = (historySize + 1) */
++
++  UInt32 matchMaxLen;
++  CLzRef *hash;
++  CLzRef *son;
++  UInt32 hashMask;
++  UInt32 cutValue;
++
++  Byte *bufferBase;
++  ISeqInStream *stream;
++  int streamEndWasReached;
++
++  UInt32 blockSize;
++  UInt32 keepSizeBefore;
++  UInt32 keepSizeAfter;
++
++  UInt32 numHashBytes;
++  int directInput;
++  size_t directInputRem;
++  int btMode;
++  int bigHash;
++  UInt32 historySize;
++  UInt32 fixedHashSize;
++  UInt32 hashSizeSum;
++  UInt32 numSons;
++  SRes result;
++  UInt32 crc[256];
++} CMatchFinder;
++
++#define Inline_MatchFinder_GetPointerToCurrentPos(p) ((p)->buffer)
++#define Inline_MatchFinder_GetIndexByte(p, index) ((p)->buffer[(Int32)(index)])
++
++#define Inline_MatchFinder_GetNumAvailableBytes(p) ((p)->streamPos - (p)->pos)
++
++int MatchFinder_NeedMove(CMatchFinder *p);
++Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p);
++void MatchFinder_MoveBlock(CMatchFinder *p);
++void MatchFinder_ReadIfRequired(CMatchFinder *p);
++
++void MatchFinder_Construct(CMatchFinder *p);
++
++/* Conditions:
++     historySize <= 3 GB
++     keepAddBufferBefore + matchMaxLen + keepAddBufferAfter < 511MB
++*/
++int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
++    UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
++    ISzAlloc *alloc);
++void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc);
++void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems);
++void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue);
++
++UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *buffer, CLzRef *son,
++    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 _cutValue,
++    UInt32 *distances, UInt32 maxLen);
++
++/*
++Conditions:
++  Mf_GetNumAvailableBytes_Func must be called before each Mf_GetMatchLen_Func.
++  Mf_GetPointerToCurrentPos_Func's result must be used only before any other function
++*/
++
++typedef void (*Mf_Init_Func)(void *object);
++typedef Byte (*Mf_GetIndexByte_Func)(void *object, Int32 index);
++typedef UInt32 (*Mf_GetNumAvailableBytes_Func)(void *object);
++typedef const Byte * (*Mf_GetPointerToCurrentPos_Func)(void *object);
++typedef UInt32 (*Mf_GetMatches_Func)(void *object, UInt32 *distances);
++typedef void (*Mf_Skip_Func)(void *object, UInt32);
++
++typedef struct _IMatchFinder
++{
++  Mf_Init_Func Init;
++  Mf_GetIndexByte_Func GetIndexByte;
++  Mf_GetNumAvailableBytes_Func GetNumAvailableBytes;
++  Mf_GetPointerToCurrentPos_Func GetPointerToCurrentPos;
++  Mf_GetMatches_Func GetMatches;
++  Mf_Skip_Func Skip;
++} IMatchFinder;
++
++void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable);
++
++void MatchFinder_Init(CMatchFinder *p);
++UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
++UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances);
++void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
++void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num);
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif
+--- /dev/null
++++ b/include/linux/lzma/LzHash.h
+@@ -0,0 +1,54 @@
++/* LzHash.h -- HASH functions for LZ algorithms
++2009-02-07 : Igor Pavlov : Public domain */
++
++#ifndef __LZ_HASH_H
++#define __LZ_HASH_H
++
++#define kHash2Size (1 << 10)
++#define kHash3Size (1 << 16)
++#define kHash4Size (1 << 20)
++
++#define kFix3HashSize (kHash2Size)
++#define kFix4HashSize (kHash2Size + kHash3Size)
++#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size)
++
++#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8);
++
++#define HASH3_CALC { \
++  UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
++  hash2Value = temp & (kHash2Size - 1); \
++  hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; }
++
++#define HASH4_CALC { \
++  UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
++  hash2Value = temp & (kHash2Size - 1); \
++  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
++  hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask; }
++
++#define HASH5_CALC { \
++  UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
++  hash2Value = temp & (kHash2Size - 1); \
++  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
++  hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)); \
++  hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask; \
++  hash4Value &= (kHash4Size - 1); }
++
++/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */
++#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF;
++
++
++#define MT_HASH2_CALC \
++  hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1);
++
++#define MT_HASH3_CALC { \
++  UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
++  hash2Value = temp & (kHash2Size - 1); \
++  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); }
++
++#define MT_HASH4_CALC { \
++  UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
++  hash2Value = temp & (kHash2Size - 1); \
++  hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
++  hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); }
++
++#endif
+--- /dev/null
++++ b/include/linux/lzma/LzmaDec.h
+@@ -0,0 +1,231 @@
++/* LzmaDec.h -- LZMA Decoder
++2009-02-07 : Igor Pavlov : Public domain */
++
++#ifndef __LZMA_DEC_H
++#define __LZMA_DEC_H
++
++#include "Types.h"
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++/* #define _LZMA_PROB32 */
++/* _LZMA_PROB32 can increase the speed on some CPUs,
++   but memory usage for CLzmaDec::probs will be doubled in that case */
++
++#ifdef _LZMA_PROB32
++#define CLzmaProb UInt32
++#else
++#define CLzmaProb UInt16
++#endif
++
++
++/* ---------- LZMA Properties ---------- */
++
++#define LZMA_PROPS_SIZE 5
++
++typedef struct _CLzmaProps
++{
++  unsigned lc, lp, pb;
++  UInt32 dicSize;
++} CLzmaProps;
++
++/* LzmaProps_Decode - decodes properties
++Returns:
++  SZ_OK
++  SZ_ERROR_UNSUPPORTED - Unsupported properties
++*/
++
++SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size);
++
++
++/* ---------- LZMA Decoder state ---------- */
++
++/* LZMA_REQUIRED_INPUT_MAX = number of required input bytes for worst case.
++   Num bits = log2((2^11 / 31) ^ 22) + 26 < 134 + 26 = 160; */
++
++#define LZMA_REQUIRED_INPUT_MAX 20
++
++typedef struct
++{
++  CLzmaProps prop;
++  CLzmaProb *probs;
++  Byte *dic;
++  const Byte *buf;
++  UInt32 range, code;
++  SizeT dicPos;
++  SizeT dicBufSize;
++  UInt32 processedPos;
++  UInt32 checkDicSize;
++  unsigned state;
++  UInt32 reps[4];
++  unsigned remainLen;
++  int needFlush;
++  int needInitState;
++  UInt32 numProbs;
++  unsigned tempBufSize;
++  Byte tempBuf[LZMA_REQUIRED_INPUT_MAX];
++} CLzmaDec;
++
++#define LzmaDec_Construct(p) { (p)->dic = 0; (p)->probs = 0; }
++
++void LzmaDec_Init(CLzmaDec *p);
++
++/* There are two types of LZMA streams:
++     0) Stream with end mark. That end mark adds about 6 bytes to compressed size.
++     1) Stream without end mark. You must know exact uncompressed size to decompress such stream. */
++
++typedef enum
++{
++  LZMA_FINISH_ANY,   /* finish at any point */
++  LZMA_FINISH_END    /* block must be finished at the end */
++} ELzmaFinishMode;
++
++/* ELzmaFinishMode has meaning only if the decoding reaches output limit !!!
++
++   You must use LZMA_FINISH_END, when you know that current output buffer
++   covers last bytes of block. In other cases you must use LZMA_FINISH_ANY.
++
++   If LZMA decoder sees end marker before reaching output limit, it returns SZ_OK,
++   and output value of destLen will be less than output buffer size limit.
++   You can check status result also.
++
++   You can use multiple checks to test data integrity after full decompression:
++     1) Check Result and "status" variable.
++     2) Check that output(destLen) = uncompressedSize, if you know real uncompressedSize.
++     3) Check that output(srcLen) = compressedSize, if you know real compressedSize.
++        You must use correct finish mode in that case. */
++
++typedef enum
++{
++  LZMA_STATUS_NOT_SPECIFIED,               /* use main error code instead */
++  LZMA_STATUS_FINISHED_WITH_MARK,          /* stream was finished with end mark. */
++  LZMA_STATUS_NOT_FINISHED,                /* stream was not finished */
++  LZMA_STATUS_NEEDS_MORE_INPUT,            /* you must provide more input bytes */
++  LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK  /* there is probability that stream was finished without end mark */
++} ELzmaStatus;
++
++/* ELzmaStatus is used only as output value for function call */
++
++
++/* ---------- Interfaces ---------- */
++
++/* There are 3 levels of interfaces:
++     1) Dictionary Interface
++     2) Buffer Interface
++     3) One Call Interface
++   You can select any of these interfaces, but don't mix functions from different
++   groups for same object. */
++
++
++/* There are two variants to allocate state for Dictionary Interface:
++     1) LzmaDec_Allocate / LzmaDec_Free
++     2) LzmaDec_AllocateProbs / LzmaDec_FreeProbs
++   You can use variant 2, if you set dictionary buffer manually.
++   For Buffer Interface you must always use variant 1.
++
++LzmaDec_Allocate* can return:
++  SZ_OK
++  SZ_ERROR_MEM         - Memory allocation error
++  SZ_ERROR_UNSUPPORTED - Unsupported properties
++*/
++   
++SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc);
++void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc);
++
++SRes LzmaDec_Allocate(CLzmaDec *state, const Byte *prop, unsigned propsSize, ISzAlloc *alloc);
++void LzmaDec_Free(CLzmaDec *state, ISzAlloc *alloc);
++
++/* ---------- Dictionary Interface ---------- */
++
++/* You can use it, if you want to eliminate the overhead for data copying from
++   dictionary to some other external buffer.
++   You must work with CLzmaDec variables directly in this interface.
++
++   STEPS:
++     LzmaDec_Constr()
++     LzmaDec_Allocate()
++     for (each new stream)
++     {
++       LzmaDec_Init()
++       while (it needs more decompression)
++       {
++         LzmaDec_DecodeToDic()
++         use data from CLzmaDec::dic and update CLzmaDec::dicPos
++       }
++     }
++     LzmaDec_Free()
++*/
++
++/* LzmaDec_DecodeToDic
++   
++   The decoding to internal dictionary buffer (CLzmaDec::dic).
++   You must manually update CLzmaDec::dicPos, if it reaches CLzmaDec::dicBufSize !!!
++
++finishMode:
++  It has meaning only if the decoding reaches output limit (dicLimit).
++  LZMA_FINISH_ANY - Decode just dicLimit bytes.
++  LZMA_FINISH_END - Stream must be finished after dicLimit.
++
++Returns:
++  SZ_OK
++    status:
++      LZMA_STATUS_FINISHED_WITH_MARK
++      LZMA_STATUS_NOT_FINISHED
++      LZMA_STATUS_NEEDS_MORE_INPUT
++      LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
++  SZ_ERROR_DATA - Data error
++*/
++
++SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit,
++    const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
++
++
++/* ---------- Buffer Interface ---------- */
++
++/* It's zlib-like interface.
++   See LzmaDec_DecodeToDic description for information about STEPS and return results,
++   but you must use LzmaDec_DecodeToBuf instead of LzmaDec_DecodeToDic and you don't need
++   to work with CLzmaDec variables manually.
++
++finishMode:
++  It has meaning only if the decoding reaches output limit (*destLen).
++  LZMA_FINISH_ANY - Decode just destLen bytes.
++  LZMA_FINISH_END - Stream must be finished after (*destLen).
++*/
++
++SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen,
++    const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status);
++
++
++/* ---------- One Call Interface ---------- */
++
++/* LzmaDecode
++
++finishMode:
++  It has meaning only if the decoding reaches output limit (*destLen).
++  LZMA_FINISH_ANY - Decode just destLen bytes.
++  LZMA_FINISH_END - Stream must be finished after (*destLen).
++
++Returns:
++  SZ_OK
++    status:
++      LZMA_STATUS_FINISHED_WITH_MARK
++      LZMA_STATUS_NOT_FINISHED
++      LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK
++  SZ_ERROR_DATA - Data error
++  SZ_ERROR_MEM  - Memory allocation error
++  SZ_ERROR_UNSUPPORTED - Unsupported properties
++  SZ_ERROR_INPUT_EOF - It needs more bytes in input buffer (src).
++*/
++
++SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
++    const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
++    ELzmaStatus *status, ISzAlloc *alloc);
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif
+--- /dev/null
++++ b/include/linux/lzma/LzmaEnc.h
+@@ -0,0 +1,80 @@
++/*  LzmaEnc.h -- LZMA Encoder
++2009-02-07 : Igor Pavlov : Public domain */
++
++#ifndef __LZMA_ENC_H
++#define __LZMA_ENC_H
++
++#include "Types.h"
++
++#ifdef __cplusplus
++extern "C" {
++#endif
++
++#define LZMA_PROPS_SIZE 5
++
++typedef struct _CLzmaEncProps
++{
++  int level;       /*  0 <= level <= 9 */
++  UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
++                      (1 << 12) <= dictSize <= (1 << 30) for 64-bit version
++                       default = (1 << 24) */
++  int lc;          /* 0 <= lc <= 8, default = 3 */
++  int lp;          /* 0 <= lp <= 4, default = 0 */
++  int pb;          /* 0 <= pb <= 4, default = 2 */
++  int algo;        /* 0 - fast, 1 - normal, default = 1 */
++  int fb;          /* 5 <= fb <= 273, default = 32 */
++  int btMode;      /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
++  int numHashBytes; /* 2, 3 or 4, default = 4 */
++  UInt32 mc;        /* 1 <= mc <= (1 << 30), default = 32 */
++  unsigned writeEndMark;  /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
++  int numThreads;  /* 1 or 2, default = 2 */
++} CLzmaEncProps;
++
++void LzmaEncProps_Init(CLzmaEncProps *p);
++void LzmaEncProps_Normalize(CLzmaEncProps *p);
++UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
++
++
++/* ---------- CLzmaEncHandle Interface ---------- */
++
++/* LzmaEnc_* functions can return the following exit codes:
++Returns:
++  SZ_OK           - OK
++  SZ_ERROR_MEM    - Memory allocation error
++  SZ_ERROR_PARAM  - Incorrect paramater in props
++  SZ_ERROR_WRITE  - Write callback error.
++  SZ_ERROR_PROGRESS - some break from progress callback
++  SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
++*/
++
++typedef void * CLzmaEncHandle;
++
++CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc);
++void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
++SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
++SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
++SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
++    ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
++SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
++    int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
++
++/* ---------- One Call Interface ---------- */
++
++/* LzmaEncode
++Return code:
++  SZ_OK               - OK
++  SZ_ERROR_MEM        - Memory allocation error
++  SZ_ERROR_PARAM      - Incorrect paramater
++  SZ_ERROR_OUTPUT_EOF - output buffer overflow
++  SZ_ERROR_THREAD     - errors in multithreading functions (only for Mt version)
++*/
++
++SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
++    const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
++    ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
++
++#ifdef __cplusplus
++}
++#endif
++
++#endif
+--- /dev/null
++++ b/include/linux/lzma/Types.h
+@@ -0,0 +1,226 @@
++/* Types.h -- Basic types
++2009-11-23 : Igor Pavlov : Public domain */
++
++#ifndef __7Z_TYPES_H
++#define __7Z_TYPES_H
++
++#include <stddef.h>
++
++#ifdef _WIN32
++#include <windows.h>
++#endif
++
++#ifndef EXTERN_C_BEGIN
++#ifdef __cplusplus
++#define EXTERN_C_BEGIN extern "C" {
++#define EXTERN_C_END }
++#else
++#define EXTERN_C_BEGIN
++#define EXTERN_C_END
++#endif
++#endif
++
++EXTERN_C_BEGIN
++
++#define SZ_OK 0
++
++#define SZ_ERROR_DATA 1
++#define SZ_ERROR_MEM 2
++#define SZ_ERROR_CRC 3
++#define SZ_ERROR_UNSUPPORTED 4
++#define SZ_ERROR_PARAM 5
++#define SZ_ERROR_INPUT_EOF 6
++#define SZ_ERROR_OUTPUT_EOF 7
++#define SZ_ERROR_READ 8
++#define SZ_ERROR_WRITE 9
++#define SZ_ERROR_PROGRESS 10
++#define SZ_ERROR_FAIL 11
++#define SZ_ERROR_THREAD 12
++
++#define SZ_ERROR_ARCHIVE 16
++#define SZ_ERROR_NO_ARCHIVE 17
++
++typedef int SRes;
++
++#ifdef _WIN32
++typedef DWORD WRes;
++#else
++typedef int WRes;
++#endif
++
++#ifndef RINOK
++#define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; }
++#endif
++
++typedef unsigned char Byte;
++typedef short Int16;
++typedef unsigned short UInt16;
++
++#ifdef _LZMA_UINT32_IS_ULONG
++typedef long Int32;
++typedef unsigned long UInt32;
++#else
++typedef int Int32;
++typedef unsigned int UInt32;
++#endif
++
++#ifdef _SZ_NO_INT_64
++
++/* define _SZ_NO_INT_64, if your compiler doesn't support 64-bit integers.
++   NOTES: Some code will work incorrectly in that case! */
++
++typedef long Int64;
++typedef unsigned long UInt64;
++
++#else
++
++#if defined(_MSC_VER) || defined(__BORLANDC__)
++typedef __int64 Int64;
++typedef unsigned __int64 UInt64;
++#else
++typedef long long int Int64;
++typedef unsigned long long int UInt64;
++#endif
++
++#endif
++
++#ifdef _LZMA_NO_SYSTEM_SIZE_T
++typedef UInt32 SizeT;
++#else
++typedef size_t SizeT;
++#endif
++
++typedef int Bool;
++#define True 1
++#define False 0
++
++
++#ifdef _WIN32
++#define MY_STD_CALL __stdcall
++#else
++#define MY_STD_CALL
++#endif
++
++#ifdef _MSC_VER
++
++#if _MSC_VER >= 1300
++#define MY_NO_INLINE __declspec(noinline)
++#else
++#define MY_NO_INLINE
++#endif
++
++#define MY_CDECL __cdecl
++#define MY_FAST_CALL __fastcall
++
++#else
++
++#define MY_CDECL
++#define MY_FAST_CALL
++
++#endif
++
++
++/* The following interfaces use first parameter as pointer to structure */
++
++typedef struct
++{
++  SRes (*Read)(void *p, void *buf, size_t *size);
++    /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
++       (output(*size) < input(*size)) is allowed */
++} ISeqInStream;
++
++/* it can return SZ_ERROR_INPUT_EOF */
++SRes SeqInStream_Read(ISeqInStream *stream, void *buf, size_t size);
++SRes SeqInStream_Read2(ISeqInStream *stream, void *buf, size_t size, SRes errorType);
++SRes SeqInStream_ReadByte(ISeqInStream *stream, Byte *buf);
++
++typedef struct
++{
++  size_t (*Write)(void *p, const void *buf, size_t size);
++    /* Returns: result - the number of actually written bytes.
++       (result < size) means error */
++} ISeqOutStream;
++
++typedef enum
++{
++  SZ_SEEK_SET = 0,
++  SZ_SEEK_CUR = 1,
++  SZ_SEEK_END = 2
++} ESzSeek;
++
++typedef struct
++{
++  SRes (*Read)(void *p, void *buf, size_t *size);  /* same as ISeqInStream::Read */
++  SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
++} ISeekInStream;
++
++typedef struct
++{
++  SRes (*Look)(void *p, void **buf, size_t *size);
++    /* if (input(*size) != 0 && output(*size) == 0) means end_of_stream.
++       (output(*size) > input(*size)) is not allowed
++       (output(*size) < input(*size)) is allowed */
++  SRes (*Skip)(void *p, size_t offset);
++    /* offset must be <= output(*size) of Look */
++
++  SRes (*Read)(void *p, void *buf, size_t *size);
++    /* reads directly (without buffer). It's same as ISeqInStream::Read */
++  SRes (*Seek)(void *p, Int64 *pos, ESzSeek origin);
++} ILookInStream;
++
++SRes LookInStream_LookRead(ILookInStream *stream, void *buf, size_t *size);
++SRes LookInStream_SeekTo(ILookInStream *stream, UInt64 offset);
++
++/* reads via ILookInStream::Read */
++SRes LookInStream_Read2(ILookInStream *stream, void *buf, size_t size, SRes errorType);
++SRes LookInStream_Read(ILookInStream *stream, void *buf, size_t size);
++
++#define LookToRead_BUF_SIZE (1 << 14)
++
++typedef struct
++{
++  ILookInStream s;
++  ISeekInStream *realStream;
++  size_t pos;
++  size_t size;
++  Byte buf[LookToRead_BUF_SIZE];
++} CLookToRead;
++
++void LookToRead_CreateVTable(CLookToRead *p, int lookahead);
++void LookToRead_Init(CLookToRead *p);
++
++typedef struct
++{
++  ISeqInStream s;
++  ILookInStream *realStream;
++} CSecToLook;
++
++void SecToLook_CreateVTable(CSecToLook *p);
++
++typedef struct
++{
++  ISeqInStream s;
++  ILookInStream *realStream;
++} CSecToRead;
++
++void SecToRead_CreateVTable(CSecToRead *p);
++
++typedef struct
++{
++  SRes (*Progress)(void *p, UInt64 inSize, UInt64 outSize);
++    /* Returns: result. (result != SZ_OK) means break.
++       Value (UInt64)(Int64)-1 for size means unknown value. */
++} ICompressProgress;
++
++typedef struct
++{
++  void *(*Alloc)(void *p, size_t size);
++  void (*Free)(void *p, void *address); /* address can be 0 */
++} ISzAlloc;
++
++#define IAlloc_Alloc(p, size) (p)->Alloc((p), size)
++#define IAlloc_Free(p, a) (p)->Free((p), a)
++
++EXTERN_C_END
++
++#endif
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -108,6 +108,12 @@ config LZO_DECOMPRESS
+ 
+ source "lib/xz/Kconfig"
+ 
++config LZMA_COMPRESS
++    tristate
++
++config LZMA_DECOMPRESS
++    tristate
++
+ #
+ # These all provide a common interface (hence the apparent duplication with
+ # ZLIB_INFLATE; DECOMPRESS_GZIP is just a wrapper.)
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -2,6 +2,16 @@
+ # Makefile for some libs needed in the kernel.
+ #
+ 
++ifdef CONFIG_JFFS2_ZLIB
++	CONFIG_ZLIB_INFLATE:=y
++	CONFIG_ZLIB_DEFLATE:=y
++endif
++
++ifdef CONFIG_JFFS2_LZMA
++	CONFIG_LZMA_DECOMPRESS:=y
++	CONFIG_LZMA_COMPRESS:=y
++endif
++
+ ifdef CONFIG_FUNCTION_TRACER
+ ORIG_CFLAGS := $(KBUILD_CFLAGS)
+ KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
+@@ -71,6 +81,8 @@ obj-$(CONFIG_LZO_COMPRESS) += lzo/
+ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
+ obj-$(CONFIG_XZ_DEC) += xz/
+ obj-$(CONFIG_RAID6_PQ) += raid6/
++obj-$(CONFIG_LZMA_COMPRESS) += lzma/
++obj-$(CONFIG_LZMA_DECOMPRESS) += lzma/
+ 
+ lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
+ lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
+--- /dev/null
++++ b/lib/lzma/LzFind.c
+@@ -0,0 +1,761 @@
++/* LzFind.c -- Match finder for LZ algorithms
++2009-04-22 : Igor Pavlov : Public domain */
++
++#include <string.h>
++
++#include "LzFind.h"
++#include "LzHash.h"
++
++#define kEmptyHashValue 0
++#define kMaxValForNormalize ((UInt32)0xFFFFFFFF)
++#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */
++#define kNormalizeMask (~(kNormalizeStepMin - 1))
++#define kMaxHistorySize ((UInt32)3 << 30)
++
++#define kStartMaxLen 3
++
++static void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc)
++{
++  if (!p->directInput)
++  {
++    alloc->Free(alloc, p->bufferBase);
++    p->bufferBase = 0;
++  }
++}
++
++/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */
++
++static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *alloc)
++{
++  UInt32 blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv;
++  if (p->directInput)
++  {
++    p->blockSize = blockSize;
++    return 1;
++  }
++  if (p->bufferBase == 0 || p->blockSize != blockSize)
++  {
++    LzInWindow_Free(p, alloc);
++    p->blockSize = blockSize;
++    p->bufferBase = (Byte *)alloc->Alloc(alloc, (size_t)blockSize);
++  }
++  return (p->bufferBase != 0);
++}
++
++Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
++Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
++
++UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
++
++void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
++{
++  p->posLimit -= subValue;
++  p->pos -= subValue;
++  p->streamPos -= subValue;
++}
++
++static void MatchFinder_ReadBlock(CMatchFinder *p)
++{
++  if (p->streamEndWasReached || p->result != SZ_OK)
++    return;
++  if (p->directInput)
++  {
++    UInt32 curSize = 0xFFFFFFFF - p->streamPos;
++    if (curSize > p->directInputRem)
++      curSize = (UInt32)p->directInputRem;
++    p->directInputRem -= curSize;
++    p->streamPos += curSize;
++    if (p->directInputRem == 0)
++      p->streamEndWasReached = 1;
++    return;
++  }
++  for (;;)
++  {
++    Byte *dest = p->buffer + (p->streamPos - p->pos);
++    size_t size = (p->bufferBase + p->blockSize - dest);
++    if (size == 0)
++      return;
++    p->result = p->stream->Read(p->stream, dest, &size);
++    if (p->result != SZ_OK)
++      return;
++    if (size == 0)
++    {
++      p->streamEndWasReached = 1;
++      return;
++    }
++    p->streamPos += (UInt32)size;
++    if (p->streamPos - p->pos > p->keepSizeAfter)
++      return;
++  }
++}
++
++void MatchFinder_MoveBlock(CMatchFinder *p)
++{
++  memmove(p->bufferBase,
++    p->buffer - p->keepSizeBefore,
++    (size_t)(p->streamPos - p->pos + p->keepSizeBefore));
++  p->buffer = p->bufferBase + p->keepSizeBefore;
++}
++
++int MatchFinder_NeedMove(CMatchFinder *p)
++{
++  if (p->directInput)
++    return 0;
++  /* if (p->streamEndWasReached) return 0; */
++  return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter);
++}
++
++void MatchFinder_ReadIfRequired(CMatchFinder *p)
++{
++  if (p->streamEndWasReached)
++    return;
++  if (p->keepSizeAfter >= p->streamPos - p->pos)
++    MatchFinder_ReadBlock(p);
++}
++
++static void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p)
++{
++  if (MatchFinder_NeedMove(p))
++    MatchFinder_MoveBlock(p);
++  MatchFinder_ReadBlock(p);
++}
++
++static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
++{
++  p->cutValue = 32;
++  p->btMode = 1;
++  p->numHashBytes = 4;
++  p->bigHash = 0;
++}
++
++#define kCrcPoly 0xEDB88320
++
++void MatchFinder_Construct(CMatchFinder *p)
++{
++  UInt32 i;
++  p->bufferBase = 0;
++  p->directInput = 0;
++  p->hash = 0;
++  MatchFinder_SetDefaultSettings(p);
++
++  for (i = 0; i < 256; i++)
++  {
++    UInt32 r = i;
++    int j;
++    for (j = 0; j < 8; j++)
++      r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
++    p->crc[i] = r;
++  }
++}
++
++static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc)
++{
++  alloc->Free(alloc, p->hash);
++  p->hash = 0;
++}
++
++void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc)
++{
++  MatchFinder_FreeThisClassMemory(p, alloc);
++  LzInWindow_Free(p, alloc);
++}
++
++static CLzRef* AllocRefs(UInt32 num, ISzAlloc *alloc)
++{
++  size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
++  if (sizeInBytes / sizeof(CLzRef) != num)
++    return 0;
++  return (CLzRef *)alloc->Alloc(alloc, sizeInBytes);
++}
++
++int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
++    UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
++    ISzAlloc *alloc)
++{
++  UInt32 sizeReserv;
++  if (historySize > kMaxHistorySize)
++  {
++    MatchFinder_Free(p, alloc);
++    return 0;
++  }
++  sizeReserv = historySize >> 1;
++  if (historySize > ((UInt32)2 << 30))
++    sizeReserv = historySize >> 2;
++  sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19);
++
++  p->keepSizeBefore = historySize + keepAddBufferBefore + 1;
++  p->keepSizeAfter = matchMaxLen + keepAddBufferAfter;
++  /* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */
++  if (LzInWindow_Create(p, sizeReserv, alloc))
++  {
++    UInt32 newCyclicBufferSize = historySize + 1;
++    UInt32 hs;
++    p->matchMaxLen = matchMaxLen;
++    {
++      p->fixedHashSize = 0;
++      if (p->numHashBytes == 2)
++        hs = (1 << 16) - 1;
++      else
++      {
++        hs = historySize - 1;
++        hs |= (hs >> 1);
++        hs |= (hs >> 2);
++        hs |= (hs >> 4);
++        hs |= (hs >> 8);
++        hs >>= 1;
++        hs |= 0xFFFF; /* don't change it! It's required for Deflate */
++        if (hs > (1 << 24))
++        {
++          if (p->numHashBytes == 3)
++            hs = (1 << 24) - 1;
++          else
++            hs >>= 1;
++        }
++      }
++      p->hashMask = hs;
++      hs++;
++      if (p->numHashBytes > 2) p->fixedHashSize += kHash2Size;
++      if (p->numHashBytes > 3) p->fixedHashSize += kHash3Size;
++      if (p->numHashBytes > 4) p->fixedHashSize += kHash4Size;
++      hs += p->fixedHashSize;
++    }
++
++    {
++      UInt32 prevSize = p->hashSizeSum + p->numSons;
++      UInt32 newSize;
++      p->historySize = historySize;
++      p->hashSizeSum = hs;
++      p->cyclicBufferSize = newCyclicBufferSize;
++      p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize);
++      newSize = p->hashSizeSum + p->numSons;
++      if (p->hash != 0 && prevSize == newSize)
++        return 1;
++      MatchFinder_FreeThisClassMemory(p, alloc);
++      p->hash = AllocRefs(newSize, alloc);
++      if (p->hash != 0)
++      {
++        p->son = p->hash + p->hashSizeSum;
++        return 1;
++      }
++    }
++  }
++  MatchFinder_Free(p, alloc);
++  return 0;
++}
++
++static void MatchFinder_SetLimits(CMatchFinder *p)
++{
++  UInt32 limit = kMaxValForNormalize - p->pos;
++  UInt32 limit2 = p->cyclicBufferSize - p->cyclicBufferPos;
++  if (limit2 < limit)
++    limit = limit2;
++  limit2 = p->streamPos - p->pos;
++  if (limit2 <= p->keepSizeAfter)
++  {
++    if (limit2 > 0)
++      limit2 = 1;
++  }
++  else
++    limit2 -= p->keepSizeAfter;
++  if (limit2 < limit)
++    limit = limit2;
++  {
++    UInt32 lenLimit = p->streamPos - p->pos;
++    if (lenLimit > p->matchMaxLen)
++      lenLimit = p->matchMaxLen;
++    p->lenLimit = lenLimit;
++  }
++  p->posLimit = p->pos + limit;
++}
++
++void MatchFinder_Init(CMatchFinder *p)
++{
++  UInt32 i;
++  for (i = 0; i < p->hashSizeSum; i++)
++    p->hash[i] = kEmptyHashValue;
++  p->cyclicBufferPos = 0;
++  p->buffer = p->bufferBase;
++  p->pos = p->streamPos = p->cyclicBufferSize;
++  p->result = SZ_OK;
++  p->streamEndWasReached = 0;
++  MatchFinder_ReadBlock(p);
++  MatchFinder_SetLimits(p);
++}
++
++static UInt32 MatchFinder_GetSubValue(CMatchFinder *p)
++{
++  return (p->pos - p->historySize - 1) & kNormalizeMask;
++}
++
++void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
++{
++  UInt32 i;
++  for (i = 0; i < numItems; i++)
++  {
++    UInt32 value = items[i];
++    if (value <= subValue)
++      value = kEmptyHashValue;
++    else
++      value -= subValue;
++    items[i] = value;
++  }
++}
++
++static void MatchFinder_Normalize(CMatchFinder *p)
++{
++  UInt32 subValue = MatchFinder_GetSubValue(p);
++  MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons);
++  MatchFinder_ReduceOffsets(p, subValue);
++}
++
++static void MatchFinder_CheckLimits(CMatchFinder *p)
++{
++  if (p->pos == kMaxValForNormalize)
++    MatchFinder_Normalize(p);
++  if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos)
++    MatchFinder_CheckAndMoveAndRead(p);
++  if (p->cyclicBufferPos == p->cyclicBufferSize)
++    p->cyclicBufferPos = 0;
++  MatchFinder_SetLimits(p);
++}
++
++static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
++    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
++    UInt32 *distances, UInt32 maxLen)
++{
++  son[_cyclicBufferPos] = curMatch;
++  for (;;)
++  {
++    UInt32 delta = pos - curMatch;
++    if (cutValue-- == 0 || delta >= _cyclicBufferSize)
++      return distances;
++    {
++      const Byte *pb = cur - delta;
++      curMatch = son[_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)];
++      if (pb[maxLen] == cur[maxLen] && *pb == *cur)
++      {
++        UInt32 len = 0;
++        while (++len != lenLimit)
++          if (pb[len] != cur[len])
++            break;
++        if (maxLen < len)
++        {
++          *distances++ = maxLen = len;
++          *distances++ = delta - 1;
++          if (len == lenLimit)
++            return distances;
++        }
++      }
++    }
++  }
++}
++
++UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
++    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
++    UInt32 *distances, UInt32 maxLen)
++{
++  CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
++  CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
++  UInt32 len0 = 0, len1 = 0;
++  for (;;)
++  {
++    UInt32 delta = pos - curMatch;
++    if (cutValue-- == 0 || delta >= _cyclicBufferSize)
++    {
++      *ptr0 = *ptr1 = kEmptyHashValue;
++      return distances;
++    }
++    {
++      CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
++      const Byte *pb = cur - delta;
++      UInt32 len = (len0 < len1 ? len0 : len1);
++      if (pb[len] == cur[len])
++      {
++        if (++len != lenLimit && pb[len] == cur[len])
++          while (++len != lenLimit)
++            if (pb[len] != cur[len])
++              break;
++        if (maxLen < len)
++        {
++          *distances++ = maxLen = len;
++          *distances++ = delta - 1;
++          if (len == lenLimit)
++          {
++            *ptr1 = pair[0];
++            *ptr0 = pair[1];
++            return distances;
++          }
++        }
++      }
++      if (pb[len] < cur[len])
++      {
++        *ptr1 = curMatch;
++        ptr1 = pair + 1;
++        curMatch = *ptr1;
++        len1 = len;
++      }
++      else
++      {
++        *ptr0 = curMatch;
++        ptr0 = pair;
++        curMatch = *ptr0;
++        len0 = len;
++      }
++    }
++  }
++}
++
++static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
++    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue)
++{
++  CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
++  CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
++  UInt32 len0 = 0, len1 = 0;
++  for (;;)
++  {
++    UInt32 delta = pos - curMatch;
++    if (cutValue-- == 0 || delta >= _cyclicBufferSize)
++    {
++      *ptr0 = *ptr1 = kEmptyHashValue;
++      return;
++    }
++    {
++      CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
++      const Byte *pb = cur - delta;
++      UInt32 len = (len0 < len1 ? len0 : len1);
++      if (pb[len] == cur[len])
++      {
++        while (++len != lenLimit)
++          if (pb[len] != cur[len])
++            break;
++        {
++          if (len == lenLimit)
++          {
++            *ptr1 = pair[0];
++            *ptr0 = pair[1];
++            return;
++          }
++        }
++      }
++      if (pb[len] < cur[len])
++      {
++        *ptr1 = curMatch;
++        ptr1 = pair + 1;
++        curMatch = *ptr1;
++        len1 = len;
++      }
++      else
++      {
++        *ptr0 = curMatch;
++        ptr0 = pair;
++        curMatch = *ptr0;
++        len0 = len;
++      }
++    }
++  }
++}
++
++#define MOVE_POS \
++  ++p->cyclicBufferPos; \
++  p->buffer++; \
++  if (++p->pos == p->posLimit) MatchFinder_CheckLimits(p);
++
++#define MOVE_POS_RET MOVE_POS return offset;
++
++static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
++
++#define GET_MATCHES_HEADER2(minLen, ret_op) \
++  UInt32 lenLimit; UInt32 hashValue; const Byte *cur; UInt32 curMatch; \
++  lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \
++  cur = p->buffer;
++
++#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0)
++#define SKIP_HEADER(minLen)        GET_MATCHES_HEADER2(minLen, continue)
++
++#define MF_PARAMS(p) p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue
++
++#define GET_MATCHES_FOOTER(offset, maxLen) \
++  offset = (UInt32)(GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), \
++  distances + offset, maxLen) - distances); MOVE_POS_RET;
++
++#define SKIP_FOOTER \
++  SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS;
++
++static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
++{
++  UInt32 offset;
++  GET_MATCHES_HEADER(2)
++  HASH2_CALC;
++  curMatch = p->hash[hashValue];
++  p->hash[hashValue] = p->pos;
++  offset = 0;
++  GET_MATCHES_FOOTER(offset, 1)
++}
++
++UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
++{
++  UInt32 offset;
++  GET_MATCHES_HEADER(3)
++  HASH_ZIP_CALC;
++  curMatch = p->hash[hashValue];
++  p->hash[hashValue] = p->pos;
++  offset = 0;
++  GET_MATCHES_FOOTER(offset, 2)
++}
++
++static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
++{
++  UInt32 hash2Value, delta2, maxLen, offset;
++  GET_MATCHES_HEADER(3)
++
++  HASH3_CALC;
++
++  delta2 = p->pos - p->hash[hash2Value];
++  curMatch = p->hash[kFix3HashSize + hashValue];
++  
++  p->hash[hash2Value] =
++  p->hash[kFix3HashSize + hashValue] = p->pos;
++
++
++  maxLen = 2;
++  offset = 0;
++  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
++  {
++    for (; maxLen != lenLimit; maxLen++)
++      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
++        break;
++    distances[0] = maxLen;
++    distances[1] = delta2 - 1;
++    offset = 2;
++    if (maxLen == lenLimit)
++    {
++      SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
++      MOVE_POS_RET;
++    }
++  }
++  GET_MATCHES_FOOTER(offset, maxLen)
++}
++
++static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
++{
++  UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
++  GET_MATCHES_HEADER(4)
++
++  HASH4_CALC;
++
++  delta2 = p->pos - p->hash[                hash2Value];
++  delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
++  curMatch = p->hash[kFix4HashSize + hashValue];
++  
++  p->hash[                hash2Value] =
++  p->hash[kFix3HashSize + hash3Value] =
++  p->hash[kFix4HashSize + hashValue] = p->pos;
++
++  maxLen = 1;
++  offset = 0;
++  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
++  {
++    distances[0] = maxLen = 2;
++    distances[1] = delta2 - 1;
++    offset = 2;
++  }
++  if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
++  {
++    maxLen = 3;
++    distances[offset + 1] = delta3 - 1;
++    offset += 2;
++    delta2 = delta3;
++  }
++  if (offset != 0)
++  {
++    for (; maxLen != lenLimit; maxLen++)
++      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
++        break;
++    distances[offset - 2] = maxLen;
++    if (maxLen == lenLimit)
++    {
++      SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
++      MOVE_POS_RET;
++    }
++  }
++  if (maxLen < 3)
++    maxLen = 3;
++  GET_MATCHES_FOOTER(offset, maxLen)
++}
++
++static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
++{
++  UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
++  GET_MATCHES_HEADER(4)
++
++  HASH4_CALC;
++
++  delta2 = p->pos - p->hash[                hash2Value];
++  delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
++  curMatch = p->hash[kFix4HashSize + hashValue];
++
++  p->hash[                hash2Value] =
++  p->hash[kFix3HashSize + hash3Value] =
++  p->hash[kFix4HashSize + hashValue] = p->pos;
++
++  maxLen = 1;
++  offset = 0;
++  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
++  {
++    distances[0] = maxLen = 2;
++    distances[1] = delta2 - 1;
++    offset = 2;
++  }
++  if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
++  {
++    maxLen = 3;
++    distances[offset + 1] = delta3 - 1;
++    offset += 2;
++    delta2 = delta3;
++  }
++  if (offset != 0)
++  {
++    for (; maxLen != lenLimit; maxLen++)
++      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
++        break;
++    distances[offset - 2] = maxLen;
++    if (maxLen == lenLimit)
++    {
++      p->son[p->cyclicBufferPos] = curMatch;
++      MOVE_POS_RET;
++    }
++  }
++  if (maxLen < 3)
++    maxLen = 3;
++  offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
++    distances + offset, maxLen) - (distances));
++  MOVE_POS_RET
++}
++
++UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
++{
++  UInt32 offset;
++  GET_MATCHES_HEADER(3)
++  HASH_ZIP_CALC;
++  curMatch = p->hash[hashValue];
++  p->hash[hashValue] = p->pos;
++  offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
++    distances, 2) - (distances));
++  MOVE_POS_RET
++}
++
++static void Bt2_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
++{
++  do
++  {
++    SKIP_HEADER(2)
++    HASH2_CALC;
++    curMatch = p->hash[hashValue];
++    p->hash[hashValue] = p->pos;
++    SKIP_FOOTER
++  }
++  while (--num != 0);
++}
++
++void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
++{
++  do
++  {
++    SKIP_HEADER(3)
++    HASH_ZIP_CALC;
++    curMatch = p->hash[hashValue];
++    p->hash[hashValue] = p->pos;
++    SKIP_FOOTER
++  }
++  while (--num != 0);
++}
++
++static void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
++{
++  do
++  {
++    UInt32 hash2Value;
++    SKIP_HEADER(3)
++    HASH3_CALC;
++    curMatch = p->hash[kFix3HashSize + hashValue];
++    p->hash[hash2Value] =
++    p->hash[kFix3HashSize + hashValue] = p->pos;
++    SKIP_FOOTER
++  }
++  while (--num != 0);
++}
++
++static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
++{
++  do
++  {
++    UInt32 hash2Value, hash3Value;
++    SKIP_HEADER(4)
++    HASH4_CALC;
++    curMatch = p->hash[kFix4HashSize + hashValue];
++    p->hash[                hash2Value] =
++    p->hash[kFix3HashSize + hash3Value] = p->pos;
++    p->hash[kFix4HashSize + hashValue] = p->pos;
++    SKIP_FOOTER
++  }
++  while (--num != 0);
++}
++
++static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
++{
++  do
++  {
++    UInt32 hash2Value, hash3Value;
++    SKIP_HEADER(4)
++    HASH4_CALC;
++    curMatch = p->hash[kFix4HashSize + hashValue];
++    p->hash[                hash2Value] =
++    p->hash[kFix3HashSize + hash3Value] =
++    p->hash[kFix4HashSize + hashValue] = p->pos;
++    p->son[p->cyclicBufferPos] = curMatch;
++    MOVE_POS
++  }
++  while (--num != 0);
++}
++
++void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
++{
++  do
++  {
++    SKIP_HEADER(3)
++    HASH_ZIP_CALC;
++    curMatch = p->hash[hashValue];
++    p->hash[hashValue] = p->pos;
++    p->son[p->cyclicBufferPos] = curMatch;
++    MOVE_POS
++  }
++  while (--num != 0);
++}
++
++void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
++{
++  vTable->Init = (Mf_Init_Func)MatchFinder_Init;
++  vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte;
++  vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes;
++  vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos;
++  if (!p->btMode)
++  {
++    vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
++    vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
++  }
++  else if (p->numHashBytes == 2)
++  {
++    vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches;
++    vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip;
++  }
++  else if (p->numHashBytes == 3)
++  {
++    vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches;
++    vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip;
++  }
++  else
++  {
++    vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches;
++    vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip;
++  }
++}
+--- /dev/null
++++ b/lib/lzma/LzmaDec.c
+@@ -0,0 +1,999 @@
++/* LzmaDec.c -- LZMA Decoder
++2009-09-20 : Igor Pavlov : Public domain */
++
++#include "LzmaDec.h"
++
++#include <string.h>
++
++#define kNumTopBits 24
++#define kTopValue ((UInt32)1 << kNumTopBits)
++
++#define kNumBitModelTotalBits 11
++#define kBitModelTotal (1 << kNumBitModelTotalBits)
++#define kNumMoveBits 5
++
++#define RC_INIT_SIZE 5
++
++#define NORMALIZE if (range < kTopValue) { range <<= 8; code = (code << 8) | (*buf++); }
++
++#define IF_BIT_0(p) ttt = *(p); NORMALIZE; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)
++#define UPDATE_0(p) range = bound; *(p) = (CLzmaProb)(ttt + ((kBitModelTotal - ttt) >> kNumMoveBits));
++#define UPDATE_1(p) range -= bound; code -= bound; *(p) = (CLzmaProb)(ttt - (ttt >> kNumMoveBits));
++#define GET_BIT2(p, i, A0, A1) IF_BIT_0(p) \
++  { UPDATE_0(p); i = (i + i); A0; } else \
++  { UPDATE_1(p); i = (i + i) + 1; A1; }
++#define GET_BIT(p, i) GET_BIT2(p, i, ; , ;)
++
++#define TREE_GET_BIT(probs, i) { GET_BIT((probs + i), i); }
++#define TREE_DECODE(probs, limit, i) \
++  { i = 1; do { TREE_GET_BIT(probs, i); } while (i < limit); i -= limit; }
++
++/* #define _LZMA_SIZE_OPT */
++
++#ifdef _LZMA_SIZE_OPT
++#define TREE_6_DECODE(probs, i) TREE_DECODE(probs, (1 << 6), i)
++#else
++#define TREE_6_DECODE(probs, i) \
++  { i = 1; \
++  TREE_GET_BIT(probs, i); \
++  TREE_GET_BIT(probs, i); \
++  TREE_GET_BIT(probs, i); \
++  TREE_GET_BIT(probs, i); \
++  TREE_GET_BIT(probs, i); \
++  TREE_GET_BIT(probs, i); \
++  i -= 0x40; }
++#endif
++
++#define NORMALIZE_CHECK if (range < kTopValue) { if (buf >= bufLimit) return DUMMY_ERROR; range <<= 8; code = (code << 8) | (*buf++); }
++
++#define IF_BIT_0_CHECK(p) ttt = *(p); NORMALIZE_CHECK; bound = (range >> kNumBitModelTotalBits) * ttt; if (code < bound)
++#define UPDATE_0_CHECK range = bound;
++#define UPDATE_1_CHECK range -= bound; code -= bound;
++#define GET_BIT2_CHECK(p, i, A0, A1) IF_BIT_0_CHECK(p) \
++  { UPDATE_0_CHECK; i = (i + i); A0; } else \
++  { UPDATE_1_CHECK; i = (i + i) + 1; A1; }
++#define GET_BIT_CHECK(p, i) GET_BIT2_CHECK(p, i, ; , ;)
++#define TREE_DECODE_CHECK(probs, limit, i) \
++  { i = 1; do { GET_BIT_CHECK(probs + i, i) } while (i < limit); i -= limit; }
++
++
++#define kNumPosBitsMax 4
++#define kNumPosStatesMax (1 << kNumPosBitsMax)
++
++#define kLenNumLowBits 3
++#define kLenNumLowSymbols (1 << kLenNumLowBits)
++#define kLenNumMidBits 3
++#define kLenNumMidSymbols (1 << kLenNumMidBits)
++#define kLenNumHighBits 8
++#define kLenNumHighSymbols (1 << kLenNumHighBits)
++
++#define LenChoice 0
++#define LenChoice2 (LenChoice + 1)
++#define LenLow (LenChoice2 + 1)
++#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
++#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
++#define kNumLenProbs (LenHigh + kLenNumHighSymbols)
++
++
++#define kNumStates 12
++#define kNumLitStates 7
++
++#define kStartPosModelIndex 4
++#define kEndPosModelIndex 14
++#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
++
++#define kNumPosSlotBits 6
++#define kNumLenToPosStates 4
++
++#define kNumAlignBits 4
++#define kAlignTableSize (1 << kNumAlignBits)
++
++#define kMatchMinLen 2
++#define kMatchSpecLenStart (kMatchMinLen + kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
++
++#define IsMatch 0
++#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
++#define IsRepG0 (IsRep + kNumStates)
++#define IsRepG1 (IsRepG0 + kNumStates)
++#define IsRepG2 (IsRepG1 + kNumStates)
++#define IsRep0Long (IsRepG2 + kNumStates)
++#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
++#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
++#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
++#define LenCoder (Align + kAlignTableSize)
++#define RepLenCoder (LenCoder + kNumLenProbs)
++#define Literal (RepLenCoder + kNumLenProbs)
++
++#define LZMA_BASE_SIZE 1846
++#define LZMA_LIT_SIZE 768
++
++#define LzmaProps_GetNumProbs(p) ((UInt32)LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((p)->lc + (p)->lp)))
++
++#if Literal != LZMA_BASE_SIZE
++StopCompilingDueBUG
++#endif
++
++#define LZMA_DIC_MIN (1 << 12)
++
++/* First LZMA-symbol is always decoded.
++And it decodes new LZMA-symbols while (buf < bufLimit), but "buf" is without last normalization
++Out:
++  Result:
++    SZ_OK - OK
++    SZ_ERROR_DATA - Error
++  p->remainLen:
++    < kMatchSpecLenStart : normal remain
++    = kMatchSpecLenStart : finished
++    = kMatchSpecLenStart + 1 : Flush marker
++    = kMatchSpecLenStart + 2 : State Init Marker
++*/
++
++static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, SizeT limit, const Byte *bufLimit)
++{
++  CLzmaProb *probs = p->probs;
++
++  unsigned state = p->state;
++  UInt32 rep0 = p->reps[0], rep1 = p->reps[1], rep2 = p->reps[2], rep3 = p->reps[3];
++  unsigned pbMask = ((unsigned)1 << (p->prop.pb)) - 1;
++  unsigned lpMask = ((unsigned)1 << (p->prop.lp)) - 1;
++  unsigned lc = p->prop.lc;
++
++  Byte *dic = p->dic;
++  SizeT dicBufSize = p->dicBufSize;
++  SizeT dicPos = p->dicPos;
++  
++  UInt32 processedPos = p->processedPos;
++  UInt32 checkDicSize = p->checkDicSize;
++  unsigned len = 0;
++
++  const Byte *buf = p->buf;
++  UInt32 range = p->range;
++  UInt32 code = p->code;
++
++  do
++  {
++    CLzmaProb *prob;
++    UInt32 bound;
++    unsigned ttt;
++    unsigned posState = processedPos & pbMask;
++
++    prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
++    IF_BIT_0(prob)
++    {
++      unsigned symbol;
++      UPDATE_0(prob);
++      prob = probs + Literal;
++      if (checkDicSize != 0 || processedPos != 0)
++        prob += (LZMA_LIT_SIZE * (((processedPos & lpMask) << lc) +
++        (dic[(dicPos == 0 ? dicBufSize : dicPos) - 1] >> (8 - lc))));
++
++      if (state < kNumLitStates)
++      {
++        state -= (state < 4) ? state : 3;
++        symbol = 1;
++        do { GET_BIT(prob + symbol, symbol) } while (symbol < 0x100);
++      }
++      else
++      {
++        unsigned matchByte = p->dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
++        unsigned offs = 0x100;
++        state -= (state < 10) ? 3 : 6;
++        symbol = 1;
++        do
++        {
++          unsigned bit;
++          CLzmaProb *probLit;
++          matchByte <<= 1;
++          bit = (matchByte & offs);
++          probLit = prob + offs + bit + symbol;
++          GET_BIT2(probLit, symbol, offs &= ~bit, offs &= bit)
++        }
++        while (symbol < 0x100);
++      }
++      dic[dicPos++] = (Byte)symbol;
++      processedPos++;
++      continue;
++    }
++    else
++    {
++      UPDATE_1(prob);
++      prob = probs + IsRep + state;
++      IF_BIT_0(prob)
++      {
++        UPDATE_0(prob);
++        state += kNumStates;
++        prob = probs + LenCoder;
++      }
++      else
++      {
++        UPDATE_1(prob);
++        if (checkDicSize == 0 && processedPos == 0)
++          return SZ_ERROR_DATA;
++        prob = probs + IsRepG0 + state;
++        IF_BIT_0(prob)
++        {
++          UPDATE_0(prob);
++          prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
++          IF_BIT_0(prob)
++          {
++            UPDATE_0(prob);
++            dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
++            dicPos++;
++            processedPos++;
++            state = state < kNumLitStates ? 9 : 11;
++            continue;
++          }
++          UPDATE_1(prob);
++        }
++        else
++        {
++          UInt32 distance;
++          UPDATE_1(prob);
++          prob = probs + IsRepG1 + state;
++          IF_BIT_0(prob)
++          {
++            UPDATE_0(prob);
++            distance = rep1;
++          }
++          else
++          {
++            UPDATE_1(prob);
++            prob = probs + IsRepG2 + state;
++            IF_BIT_0(prob)
++            {
++              UPDATE_0(prob);
++              distance = rep2;
++            }
++            else
++            {
++              UPDATE_1(prob);
++              distance = rep3;
++              rep3 = rep2;
++            }
++            rep2 = rep1;
++          }
++          rep1 = rep0;
++          rep0 = distance;
++        }
++        state = state < kNumLitStates ? 8 : 11;
++        prob = probs + RepLenCoder;
++      }
++      {
++        unsigned limit, offset;
++        CLzmaProb *probLen = prob + LenChoice;
++        IF_BIT_0(probLen)
++        {
++          UPDATE_0(probLen);
++          probLen = prob + LenLow + (posState << kLenNumLowBits);
++          offset = 0;
++          limit = (1 << kLenNumLowBits);
++        }
++        else
++        {
++          UPDATE_1(probLen);
++          probLen = prob + LenChoice2;
++          IF_BIT_0(probLen)
++          {
++            UPDATE_0(probLen);
++            probLen = prob + LenMid + (posState << kLenNumMidBits);
++            offset = kLenNumLowSymbols;
++            limit = (1 << kLenNumMidBits);
++          }
++          else
++          {
++            UPDATE_1(probLen);
++            probLen = prob + LenHigh;
++            offset = kLenNumLowSymbols + kLenNumMidSymbols;
++            limit = (1 << kLenNumHighBits);
++          }
++        }
++        TREE_DECODE(probLen, limit, len);
++        len += offset;
++      }
++
++      if (state >= kNumStates)
++      {
++        UInt32 distance;
++        prob = probs + PosSlot +
++            ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << kNumPosSlotBits);
++        TREE_6_DECODE(prob, distance);
++        if (distance >= kStartPosModelIndex)
++        {
++          unsigned posSlot = (unsigned)distance;
++          int numDirectBits = (int)(((distance >> 1) - 1));
++          distance = (2 | (distance & 1));
++          if (posSlot < kEndPosModelIndex)
++          {
++            distance <<= numDirectBits;
++            prob = probs + SpecPos + distance - posSlot - 1;
++            {
++              UInt32 mask = 1;
++              unsigned i = 1;
++              do
++              {
++                GET_BIT2(prob + i, i, ; , distance |= mask);
++                mask <<= 1;
++              }
++              while (--numDirectBits != 0);
++            }
++          }
++          else
++          {
++            numDirectBits -= kNumAlignBits;
++            do
++            {
++              NORMALIZE
++              range >>= 1;
++              
++              {
++                UInt32 t;
++                code -= range;
++                t = (0 - ((UInt32)code >> 31)); /* (UInt32)((Int32)code >> 31) */
++                distance = (distance << 1) + (t + 1);
++                code += range & t;
++              }
++              /*
++              distance <<= 1;
++              if (code >= range)
++              {
++                code -= range;
++                distance |= 1;
++              }
++              */
++            }
++            while (--numDirectBits != 0);
++            prob = probs + Align;
++            distance <<= kNumAlignBits;
++            {
++              unsigned i = 1;
++              GET_BIT2(prob + i, i, ; , distance |= 1);
++              GET_BIT2(prob + i, i, ; , distance |= 2);
++              GET_BIT2(prob + i, i, ; , distance |= 4);
++              GET_BIT2(prob + i, i, ; , distance |= 8);
++            }
++            if (distance == (UInt32)0xFFFFFFFF)
++            {
++              len += kMatchSpecLenStart;
++              state -= kNumStates;
++              break;
++            }
++          }
++        }
++        rep3 = rep2;
++        rep2 = rep1;
++        rep1 = rep0;
++        rep0 = distance + 1;
++        if (checkDicSize == 0)
++        {
++          if (distance >= processedPos)
++            return SZ_ERROR_DATA;
++        }
++        else if (distance >= checkDicSize)
++          return SZ_ERROR_DATA;
++        state = (state < kNumStates + kNumLitStates) ? kNumLitStates : kNumLitStates + 3;
++      }
++
++      len += kMatchMinLen;
++
++      if (limit == dicPos)
++        return SZ_ERROR_DATA;
++      {
++        SizeT rem = limit - dicPos;
++        unsigned curLen = ((rem < len) ? (unsigned)rem : len);
++        SizeT pos = (dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0);
++
++        processedPos += curLen;
++
++        len -= curLen;
++        if (pos + curLen <= dicBufSize)
++        {
++          Byte *dest = dic + dicPos;
++          ptrdiff_t src = (ptrdiff_t)pos - (ptrdiff_t)dicPos;
++          const Byte *lim = dest + curLen;
++          dicPos += curLen;
++          do
++            *(dest) = (Byte)*(dest + src);
++          while (++dest != lim);
++        }
++        else
++        {
++          do
++          {
++            dic[dicPos++] = dic[pos];
++            if (++pos == dicBufSize)
++              pos = 0;
++          }
++          while (--curLen != 0);
++        }
++      }
++    }
++  }
++  while (dicPos < limit && buf < bufLimit);
++  NORMALIZE;
++  p->buf = buf;
++  p->range = range;
++  p->code = code;
++  p->remainLen = len;
++  p->dicPos = dicPos;
++  p->processedPos = processedPos;
++  p->reps[0] = rep0;
++  p->reps[1] = rep1;
++  p->reps[2] = rep2;
++  p->reps[3] = rep3;
++  p->state = state;
++
++  return SZ_OK;
++}
++
++static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, SizeT limit)
++{
++  if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart)
++  {
++    Byte *dic = p->dic;
++    SizeT dicPos = p->dicPos;
++    SizeT dicBufSize = p->dicBufSize;
++    unsigned len = p->remainLen;
++    UInt32 rep0 = p->reps[0];
++    if (limit - dicPos < len)
++      len = (unsigned)(limit - dicPos);
++
++    if (p->checkDicSize == 0 && p->prop.dicSize - p->processedPos <= len)
++      p->checkDicSize = p->prop.dicSize;
++
++    p->processedPos += len;
++    p->remainLen -= len;
++    while (len-- != 0)
++    {
++      dic[dicPos] = dic[(dicPos - rep0) + ((dicPos < rep0) ? dicBufSize : 0)];
++      dicPos++;
++    }
++    p->dicPos = dicPos;
++  }
++}
++
++static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, SizeT limit, const Byte *bufLimit)
++{
++  do
++  {
++    SizeT limit2 = limit;
++    if (p->checkDicSize == 0)
++    {
++      UInt32 rem = p->prop.dicSize - p->processedPos;
++      if (limit - p->dicPos > rem)
++        limit2 = p->dicPos + rem;
++    }
++    RINOK(LzmaDec_DecodeReal(p, limit2, bufLimit));
++    if (p->processedPos >= p->prop.dicSize)
++      p->checkDicSize = p->prop.dicSize;
++    LzmaDec_WriteRem(p, limit);
++  }
++  while (p->dicPos < limit && p->buf < bufLimit && p->remainLen < kMatchSpecLenStart);
++
++  if (p->remainLen > kMatchSpecLenStart)
++  {
++    p->remainLen = kMatchSpecLenStart;
++  }
++  return 0;
++}
++
++typedef enum
++{
++  DUMMY_ERROR, /* unexpected end of input stream */
++  DUMMY_LIT,
++  DUMMY_MATCH,
++  DUMMY_REP
++} ELzmaDummy;
++
++static ELzmaDummy LzmaDec_TryDummy(const CLzmaDec *p, const Byte *buf, SizeT inSize)
++{
++  UInt32 range = p->range;
++  UInt32 code = p->code;
++  const Byte *bufLimit = buf + inSize;
++  CLzmaProb *probs = p->probs;
++  unsigned state = p->state;
++  ELzmaDummy res;
++
++  {
++    CLzmaProb *prob;
++    UInt32 bound;
++    unsigned ttt;
++    unsigned posState = (p->processedPos) & ((1 << p->prop.pb) - 1);
++
++    prob = probs + IsMatch + (state << kNumPosBitsMax) + posState;
++    IF_BIT_0_CHECK(prob)
++    {
++      UPDATE_0_CHECK
++
++      /* if (bufLimit - buf >= 7) return DUMMY_LIT; */
++
++      prob = probs + Literal;
++      if (p->checkDicSize != 0 || p->processedPos != 0)
++        prob += (LZMA_LIT_SIZE *
++          ((((p->processedPos) & ((1 << (p->prop.lp)) - 1)) << p->prop.lc) +
++          (p->dic[(p->dicPos == 0 ? p->dicBufSize : p->dicPos) - 1] >> (8 - p->prop.lc))));
++
++      if (state < kNumLitStates)
++      {
++        unsigned symbol = 1;
++        do { GET_BIT_CHECK(prob + symbol, symbol) } while (symbol < 0x100);
++      }
++      else
++      {
++        unsigned matchByte = p->dic[p->dicPos - p->reps[0] +
++            ((p->dicPos < p->reps[0]) ? p->dicBufSize : 0)];
++        unsigned offs = 0x100;
++        unsigned symbol = 1;
++        do
++        {
++          unsigned bit;
++          CLzmaProb *probLit;
++          matchByte <<= 1;
++          bit = (matchByte & offs);
++          probLit = prob + offs + bit + symbol;
++          GET_BIT2_CHECK(probLit, symbol, offs &= ~bit, offs &= bit)
++        }
++        while (symbol < 0x100);
++      }
++      res = DUMMY_LIT;
++    }
++    else
++    {
++      unsigned len;
++      UPDATE_1_CHECK;
++
++      prob = probs + IsRep + state;
++      IF_BIT_0_CHECK(prob)
++      {
++        UPDATE_0_CHECK;
++        state = 0;
++        prob = probs + LenCoder;
++        res = DUMMY_MATCH;
++      }
++      else
++      {
++        UPDATE_1_CHECK;
++        res = DUMMY_REP;
++        prob = probs + IsRepG0 + state;
++        IF_BIT_0_CHECK(prob)
++        {
++          UPDATE_0_CHECK;
++          prob = probs + IsRep0Long + (state << kNumPosBitsMax) + posState;
++          IF_BIT_0_CHECK(prob)
++          {
++            UPDATE_0_CHECK;
++            NORMALIZE_CHECK;
++            return DUMMY_REP;
++          }
++          else
++          {
++            UPDATE_1_CHECK;
++          }
++        }
++        else
++        {
++          UPDATE_1_CHECK;
++          prob = probs + IsRepG1 + state;
++          IF_BIT_0_CHECK(prob)
++          {
++            UPDATE_0_CHECK;
++          }
++          else
++          {
++            UPDATE_1_CHECK;
++            prob = probs + IsRepG2 + state;
++            IF_BIT_0_CHECK(prob)
++            {
++              UPDATE_0_CHECK;
++            }
++            else
++            {
++              UPDATE_1_CHECK;
++            }
++          }
++        }
++        state = kNumStates;
++        prob = probs + RepLenCoder;
++      }
++      {
++        unsigned limit, offset;
++        CLzmaProb *probLen = prob + LenChoice;
++        IF_BIT_0_CHECK(probLen)
++        {
++          UPDATE_0_CHECK;
++          probLen = prob + LenLow + (posState << kLenNumLowBits);
++          offset = 0;
++          limit = 1 << kLenNumLowBits;
++        }
++        else
++        {
++          UPDATE_1_CHECK;
++          probLen = prob + LenChoice2;
++          IF_BIT_0_CHECK(probLen)
++          {
++            UPDATE_0_CHECK;
++            probLen = prob + LenMid + (posState << kLenNumMidBits);
++            offset = kLenNumLowSymbols;
++            limit = 1 << kLenNumMidBits;
++          }
++          else
++          {
++            UPDATE_1_CHECK;
++            probLen = prob + LenHigh;
++            offset = kLenNumLowSymbols + kLenNumMidSymbols;
++            limit = 1 << kLenNumHighBits;
++          }
++        }
++        TREE_DECODE_CHECK(probLen, limit, len);
++        len += offset;
++      }
++
++      if (state < 4)
++      {
++        unsigned posSlot;
++        prob = probs + PosSlot +
++            ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) <<
++            kNumPosSlotBits);
++        TREE_DECODE_CHECK(prob, 1 << kNumPosSlotBits, posSlot);
++        if (posSlot >= kStartPosModelIndex)
++        {
++          int numDirectBits = ((posSlot >> 1) - 1);
++
++          /* if (bufLimit - buf >= 8) return DUMMY_MATCH; */
++
++          if (posSlot < kEndPosModelIndex)
++          {
++            prob = probs + SpecPos + ((2 | (posSlot & 1)) << numDirectBits) - posSlot - 1;
++          }
++          else
++          {
++            numDirectBits -= kNumAlignBits;
++            do
++            {
++              NORMALIZE_CHECK
++              range >>= 1;
++              code -= range & (((code - range) >> 31) - 1);
++              /* if (code >= range) code -= range; */
++            }
++            while (--numDirectBits != 0);
++            prob = probs + Align;
++            numDirectBits = kNumAlignBits;
++          }
++          {
++            unsigned i = 1;
++            do
++            {
++              GET_BIT_CHECK(prob + i, i);
++            }
++            while (--numDirectBits != 0);
++          }
++        }
++      }
++    }
++  }
++  NORMALIZE_CHECK;
++  return res;
++}
++
++
++static void LzmaDec_InitRc(CLzmaDec *p, const Byte *data)
++{
++  p->code = ((UInt32)data[1] << 24) | ((UInt32)data[2] << 16) | ((UInt32)data[3] << 8) | ((UInt32)data[4]);
++  p->range = 0xFFFFFFFF;
++  p->needFlush = 0;
++}
++
++void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState)
++{
++  p->needFlush = 1;
++  p->remainLen = 0;
++  p->tempBufSize = 0;
++
++  if (initDic)
++  {
++    p->processedPos = 0;
++    p->checkDicSize = 0;
++    p->needInitState = 1;
++  }
++  if (initState)
++    p->needInitState = 1;
++}
++
++void LzmaDec_Init(CLzmaDec *p)
++{
++  p->dicPos = 0;
++  LzmaDec_InitDicAndState(p, True, True);
++}
++
++static void LzmaDec_InitStateReal(CLzmaDec *p)
++{
++  UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (p->prop.lc + p->prop.lp));
++  UInt32 i;
++  CLzmaProb *probs = p->probs;
++  for (i = 0; i < numProbs; i++)
++    probs[i] = kBitModelTotal >> 1;
++  p->reps[0] = p->reps[1] = p->reps[2] = p->reps[3] = 1;
++  p->state = 0;
++  p->needInitState = 0;
++}
++
++SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen,
++    ELzmaFinishMode finishMode, ELzmaStatus *status)
++{
++  SizeT inSize = *srcLen;
++  (*srcLen) = 0;
++  LzmaDec_WriteRem(p, dicLimit);
++  
++  *status = LZMA_STATUS_NOT_SPECIFIED;
++
++  while (p->remainLen != kMatchSpecLenStart)
++  {
++      int checkEndMarkNow;
++
++      if (p->needFlush != 0)
++      {
++        for (; inSize > 0 && p->tempBufSize < RC_INIT_SIZE; (*srcLen)++, inSize--)
++          p->tempBuf[p->tempBufSize++] = *src++;
++        if (p->tempBufSize < RC_INIT_SIZE)
++        {
++          *status = LZMA_STATUS_NEEDS_MORE_INPUT;
++          return SZ_OK;
++        }
++        if (p->tempBuf[0] != 0)
++          return SZ_ERROR_DATA;
++
++        LzmaDec_InitRc(p, p->tempBuf);
++        p->tempBufSize = 0;
++      }
++
++      checkEndMarkNow = 0;
++      if (p->dicPos >= dicLimit)
++      {
++        if (p->remainLen == 0 && p->code == 0)
++        {
++          *status = LZMA_STATUS_MAYBE_FINISHED_WITHOUT_MARK;
++          return SZ_OK;
++        }
++        if (finishMode == LZMA_FINISH_ANY)
++        {
++          *status = LZMA_STATUS_NOT_FINISHED;
++          return SZ_OK;
++        }
++        if (p->remainLen != 0)
++        {
++          *status = LZMA_STATUS_NOT_FINISHED;
++          return SZ_ERROR_DATA;
++        }
++        checkEndMarkNow = 1;
++      }
++
++      if (p->needInitState)
++        LzmaDec_InitStateReal(p);
++  
++      if (p->tempBufSize == 0)
++      {
++        SizeT processed;
++        const Byte *bufLimit;
++        if (inSize < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
++        {
++          int dummyRes = LzmaDec_TryDummy(p, src, inSize);
++          if (dummyRes == DUMMY_ERROR)
++          {
++            memcpy(p->tempBuf, src, inSize);
++            p->tempBufSize = (unsigned)inSize;
++            (*srcLen) += inSize;
++            *status = LZMA_STATUS_NEEDS_MORE_INPUT;
++            return SZ_OK;
++          }
++          if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
++          {
++            *status = LZMA_STATUS_NOT_FINISHED;
++            return SZ_ERROR_DATA;
++          }
++          bufLimit = src;
++        }
++        else
++          bufLimit = src + inSize - LZMA_REQUIRED_INPUT_MAX;
++        p->buf = src;
++        if (LzmaDec_DecodeReal2(p, dicLimit, bufLimit) != 0)
++          return SZ_ERROR_DATA;
++        processed = (SizeT)(p->buf - src);
++        (*srcLen) += processed;
++        src += processed;
++        inSize -= processed;
++      }
++      else
++      {
++        unsigned rem = p->tempBufSize, lookAhead = 0;
++        while (rem < LZMA_REQUIRED_INPUT_MAX && lookAhead < inSize)
++          p->tempBuf[rem++] = src[lookAhead++];
++        p->tempBufSize = rem;
++        if (rem < LZMA_REQUIRED_INPUT_MAX || checkEndMarkNow)
++        {
++          int dummyRes = LzmaDec_TryDummy(p, p->tempBuf, rem);
++          if (dummyRes == DUMMY_ERROR)
++          {
++            (*srcLen) += lookAhead;
++            *status = LZMA_STATUS_NEEDS_MORE_INPUT;
++            return SZ_OK;
++          }
++          if (checkEndMarkNow && dummyRes != DUMMY_MATCH)
++          {
++            *status = LZMA_STATUS_NOT_FINISHED;
++            return SZ_ERROR_DATA;
++          }
++        }
++        p->buf = p->tempBuf;
++        if (LzmaDec_DecodeReal2(p, dicLimit, p->buf) != 0)
++          return SZ_ERROR_DATA;
++        lookAhead -= (rem - (unsigned)(p->buf - p->tempBuf));
++        (*srcLen) += lookAhead;
++        src += lookAhead;
++        inSize -= lookAhead;
++        p->tempBufSize = 0;
++      }
++  }
++  if (p->code == 0)
++    *status = LZMA_STATUS_FINISHED_WITH_MARK;
++  return (p->code == 0) ? SZ_OK : SZ_ERROR_DATA;
++}
++
++SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status)
++{
++  SizeT outSize = *destLen;
++  SizeT inSize = *srcLen;
++  *srcLen = *destLen = 0;
++  for (;;)
++  {
++    SizeT inSizeCur = inSize, outSizeCur, dicPos;
++    ELzmaFinishMode curFinishMode;
++    SRes res;
++    if (p->dicPos == p->dicBufSize)
++      p->dicPos = 0;
++    dicPos = p->dicPos;
++    if (outSize > p->dicBufSize - dicPos)
++    {
++      outSizeCur = p->dicBufSize;
++      curFinishMode = LZMA_FINISH_ANY;
++    }
++    else
++    {
++      outSizeCur = dicPos + outSize;
++      curFinishMode = finishMode;
++    }
++
++    res = LzmaDec_DecodeToDic(p, outSizeCur, src, &inSizeCur, curFinishMode, status);
++    src += inSizeCur;
++    inSize -= inSizeCur;
++    *srcLen += inSizeCur;
++    outSizeCur = p->dicPos - dicPos;
++    memcpy(dest, p->dic + dicPos, outSizeCur);
++    dest += outSizeCur;
++    outSize -= outSizeCur;
++    *destLen += outSizeCur;
++    if (res != 0)
++      return res;
++    if (outSizeCur == 0 || outSize == 0)
++      return SZ_OK;
++  }
++}
++
++void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc)
++{
++  alloc->Free(alloc, p->probs);
++  p->probs = 0;
++}
++
++static void LzmaDec_FreeDict(CLzmaDec *p, ISzAlloc *alloc)
++{
++  alloc->Free(alloc, p->dic);
++  p->dic = 0;
++}
++
++void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc)
++{
++  LzmaDec_FreeProbs(p, alloc);
++  LzmaDec_FreeDict(p, alloc);
++}
++
++SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size)
++{
++  UInt32 dicSize;
++  Byte d;
++  
++  if (size < LZMA_PROPS_SIZE)
++    return SZ_ERROR_UNSUPPORTED;
++  else
++    dicSize = data[1] | ((UInt32)data[2] << 8) | ((UInt32)data[3] << 16) | ((UInt32)data[4] << 24);
++ 
++  if (dicSize < LZMA_DIC_MIN)
++    dicSize = LZMA_DIC_MIN;
++  p->dicSize = dicSize;
++
++  d = data[0];
++  if (d >= (9 * 5 * 5))
++    return SZ_ERROR_UNSUPPORTED;
++
++  p->lc = d % 9;
++  d /= 9;
++  p->pb = d / 5;
++  p->lp = d % 5;
++
++  return SZ_OK;
++}
++
++static SRes LzmaDec_AllocateProbs2(CLzmaDec *p, const CLzmaProps *propNew, ISzAlloc *alloc)
++{
++  UInt32 numProbs = LzmaProps_GetNumProbs(propNew);
++  if (p->probs == 0 || numProbs != p->numProbs)
++  {
++    LzmaDec_FreeProbs(p, alloc);
++    p->probs = (CLzmaProb *)alloc->Alloc(alloc, numProbs * sizeof(CLzmaProb));
++    p->numProbs = numProbs;
++    if (p->probs == 0)
++      return SZ_ERROR_MEM;
++  }
++  return SZ_OK;
++}
++
++SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
++{
++  CLzmaProps propNew;
++  RINOK(LzmaProps_Decode(&propNew, props, propsSize));
++  RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));
++  p->prop = propNew;
++  return SZ_OK;
++}
++
++SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc)
++{
++  CLzmaProps propNew;
++  SizeT dicBufSize;
++  RINOK(LzmaProps_Decode(&propNew, props, propsSize));
++  RINOK(LzmaDec_AllocateProbs2(p, &propNew, alloc));
++  dicBufSize = propNew.dicSize;
++  if (p->dic == 0 || dicBufSize != p->dicBufSize)
++  {
++    LzmaDec_FreeDict(p, alloc);
++    p->dic = (Byte *)alloc->Alloc(alloc, dicBufSize);
++    if (p->dic == 0)
++    {
++      LzmaDec_FreeProbs(p, alloc);
++      return SZ_ERROR_MEM;
++    }
++  }
++  p->dicBufSize = dicBufSize;
++  p->prop = propNew;
++  return SZ_OK;
++}
++
++SRes LzmaDecode(Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen,
++    const Byte *propData, unsigned propSize, ELzmaFinishMode finishMode,
++    ELzmaStatus *status, ISzAlloc *alloc)
++{
++  CLzmaDec p;
++  SRes res;
++  SizeT inSize = *srcLen;
++  SizeT outSize = *destLen;
++  *srcLen = *destLen = 0;
++  if (inSize < RC_INIT_SIZE)
++    return SZ_ERROR_INPUT_EOF;
++
++  LzmaDec_Construct(&p);
++  res = LzmaDec_AllocateProbs(&p, propData, propSize, alloc);
++  if (res != 0)
++    return res;
++  p.dic = dest;
++  p.dicBufSize = outSize;
++
++  LzmaDec_Init(&p);
++  
++  *srcLen = inSize;
++  res = LzmaDec_DecodeToDic(&p, outSize, src, srcLen, finishMode, status);
++
++  if (res == SZ_OK && *status == LZMA_STATUS_NEEDS_MORE_INPUT)
++    res = SZ_ERROR_INPUT_EOF;
++
++  (*destLen) = p.dicPos;
++  LzmaDec_FreeProbs(&p, alloc);
++  return res;
++}
+--- /dev/null
++++ b/lib/lzma/LzmaEnc.c
+@@ -0,0 +1,2271 @@
++/* LzmaEnc.c -- LZMA Encoder
++2009-11-24 : Igor Pavlov : Public domain */
++
++#include <string.h>
++
++/* #define SHOW_STAT */
++/* #define SHOW_STAT2 */
++
++#if defined(SHOW_STAT) || defined(SHOW_STAT2)
++#include <stdio.h>
++#endif
++
++#include "LzmaEnc.h"
++
++/* disable MT */
++#define _7ZIP_ST
++
++#include "LzFind.h"
++#ifndef _7ZIP_ST
++#include "LzFindMt.h"
++#endif
++
++#ifdef SHOW_STAT
++static int ttt = 0;
++#endif
++
++#define kBlockSizeMax ((1 << LZMA_NUM_BLOCK_SIZE_BITS) - 1)
++
++#define kBlockSize (9 << 10)
++#define kUnpackBlockSize (1 << 18)
++#define kMatchArraySize (1 << 21)
++#define kMatchRecordMaxSize ((LZMA_MATCH_LEN_MAX * 2 + 3) * LZMA_MATCH_LEN_MAX)
++
++#define kNumMaxDirectBits (31)
++
++#define kNumTopBits 24
++#define kTopValue ((UInt32)1 << kNumTopBits)
++
++#define kNumBitModelTotalBits 11
++#define kBitModelTotal (1 << kNumBitModelTotalBits)
++#define kNumMoveBits 5
++#define kProbInitValue (kBitModelTotal >> 1)
++
++#define kNumMoveReducingBits 4
++#define kNumBitPriceShiftBits 4
++#define kBitPrice (1 << kNumBitPriceShiftBits)
++
++void LzmaEncProps_Init(CLzmaEncProps *p)
++{
++  p->level = 5;
++  p->dictSize = p->mc = 0;
++  p->lc = p->lp = p->pb = p->algo = p->fb = p->btMode = p->numHashBytes = p->numThreads = -1;
++  p->writeEndMark = 0;
++}
++
++void LzmaEncProps_Normalize(CLzmaEncProps *p)
++{
++  int level = p->level;
++  if (level < 0) level = 5;
++  p->level = level;
++  if (p->dictSize == 0) p->dictSize = (level <= 5 ? (1 << (level * 2 + 14)) : (level == 6 ? (1 << 25) : (1 << 26)));
++  if (p->lc < 0) p->lc = 3;
++  if (p->lp < 0) p->lp = 0;
++  if (p->pb < 0) p->pb = 2;
++  if (p->algo < 0) p->algo = (level < 5 ? 0 : 1);
++  if (p->fb < 0) p->fb = (level < 7 ? 32 : 64);
++  if (p->btMode < 0) p->btMode = (p->algo == 0 ? 0 : 1);
++  if (p->numHashBytes < 0) p->numHashBytes = 4;
++  if (p->mc == 0)  p->mc = (16 + (p->fb >> 1)) >> (p->btMode ? 0 : 1);
++  if (p->numThreads < 0)
++    p->numThreads =
++      #ifndef _7ZIP_ST
++      ((p->btMode && p->algo) ? 2 : 1);
++      #else
++      1;
++      #endif
++}
++
++UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2)
++{
++  CLzmaEncProps props = *props2;
++  LzmaEncProps_Normalize(&props);
++  return props.dictSize;
++}
++
++/* #define LZMA_LOG_BSR */
++/* Define it for Intel's CPU */
++
++
++#ifdef LZMA_LOG_BSR
++
++#define kDicLogSizeMaxCompress 30
++
++#define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); }
++
++UInt32 GetPosSlot1(UInt32 pos)
++{
++  UInt32 res;
++  BSR2_RET(pos, res);
++  return res;
++}
++#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }
++#define GetPosSlot(pos, res) { if (pos < 2) res = pos; else BSR2_RET(pos, res); }
++
++#else
++
++#define kNumLogBits (9 + (int)sizeof(size_t) / 2)
++#define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7)
++
++void LzmaEnc_FastPosInit(Byte *g_FastPos)
++{
++  int c = 2, slotFast;
++  g_FastPos[0] = 0;
++  g_FastPos[1] = 1;
++  
++  for (slotFast = 2; slotFast < kNumLogBits * 2; slotFast++)
++  {
++    UInt32 k = (1 << ((slotFast >> 1) - 1));
++    UInt32 j;
++    for (j = 0; j < k; j++, c++)
++      g_FastPos[c] = (Byte)slotFast;
++  }
++}
++
++#define BSR2_RET(pos, res) { UInt32 i = 6 + ((kNumLogBits - 1) & \
++  (0 - (((((UInt32)1 << (kNumLogBits + 6)) - 1) - pos) >> 31))); \
++  res = p->g_FastPos[pos >> i] + (i * 2); }
++/*
++#define BSR2_RET(pos, res) { res = (pos < (1 << (kNumLogBits + 6))) ? \
++  p->g_FastPos[pos >> 6] + 12 : \
++  p->g_FastPos[pos >> (6 + kNumLogBits - 1)] + (6 + (kNumLogBits - 1)) * 2; }
++*/
++
++#define GetPosSlot1(pos) p->g_FastPos[pos]
++#define GetPosSlot2(pos, res) { BSR2_RET(pos, res); }
++#define GetPosSlot(pos, res) { if (pos < kNumFullDistances) res = p->g_FastPos[pos]; else BSR2_RET(pos, res); }
++
++#endif
++
++
++#define LZMA_NUM_REPS 4
++
++typedef unsigned CState;
++
++typedef struct
++{
++  UInt32 price;
++
++  CState state;
++  int prev1IsChar;
++  int prev2;
++
++  UInt32 posPrev2;
++  UInt32 backPrev2;
++
++  UInt32 posPrev;
++  UInt32 backPrev;
++  UInt32 backs[LZMA_NUM_REPS];
++} COptimal;
++
++#define kNumOpts (1 << 12)
++
++#define kNumLenToPosStates 4
++#define kNumPosSlotBits 6
++#define kDicLogSizeMin 0
++#define kDicLogSizeMax 32
++#define kDistTableSizeMax (kDicLogSizeMax * 2)
++
++
++#define kNumAlignBits 4
++#define kAlignTableSize (1 << kNumAlignBits)
++#define kAlignMask (kAlignTableSize - 1)
++
++#define kStartPosModelIndex 4
++#define kEndPosModelIndex 14
++#define kNumPosModels (kEndPosModelIndex - kStartPosModelIndex)
++
++#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
++
++#ifdef _LZMA_PROB32
++#define CLzmaProb UInt32
++#else
++#define CLzmaProb UInt16
++#endif
++
++#define LZMA_PB_MAX 4
++#define LZMA_LC_MAX 8
++#define LZMA_LP_MAX 4
++
++#define LZMA_NUM_PB_STATES_MAX (1 << LZMA_PB_MAX)
++
++
++#define kLenNumLowBits 3
++#define kLenNumLowSymbols (1 << kLenNumLowBits)
++#define kLenNumMidBits 3
++#define kLenNumMidSymbols (1 << kLenNumMidBits)
++#define kLenNumHighBits 8
++#define kLenNumHighSymbols (1 << kLenNumHighBits)
++
++#define kLenNumSymbolsTotal (kLenNumLowSymbols + kLenNumMidSymbols + kLenNumHighSymbols)
++
++#define LZMA_MATCH_LEN_MIN 2
++#define LZMA_MATCH_LEN_MAX (LZMA_MATCH_LEN_MIN + kLenNumSymbolsTotal - 1)
++
++#define kNumStates 12
++
++typedef struct
++{
++  CLzmaProb choice;
++  CLzmaProb choice2;
++  CLzmaProb low[LZMA_NUM_PB_STATES_MAX << kLenNumLowBits];
++  CLzmaProb mid[LZMA_NUM_PB_STATES_MAX << kLenNumMidBits];
++  CLzmaProb high[kLenNumHighSymbols];
++} CLenEnc;
++
++typedef struct
++{
++  CLenEnc p;
++  UInt32 prices[LZMA_NUM_PB_STATES_MAX][kLenNumSymbolsTotal];
++  UInt32 tableSize;
++  UInt32 counters[LZMA_NUM_PB_STATES_MAX];
++} CLenPriceEnc;
++
++typedef struct
++{
++  UInt32 range;
++  Byte cache;
++  UInt64 low;
++  UInt64 cacheSize;
++  Byte *buf;
++  Byte *bufLim;
++  Byte *bufBase;
++  ISeqOutStream *outStream;
++  UInt64 processed;
++  SRes res;
++} CRangeEnc;
++
++typedef struct
++{
++  CLzmaProb *litProbs;
++
++  CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
++  CLzmaProb isRep[kNumStates];
++  CLzmaProb isRepG0[kNumStates];
++  CLzmaProb isRepG1[kNumStates];
++  CLzmaProb isRepG2[kNumStates];
++  CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
++
++  CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
++  CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
++  CLzmaProb posAlignEncoder[1 << kNumAlignBits];
++  
++  CLenPriceEnc lenEnc;
++  CLenPriceEnc repLenEnc;
++
++  UInt32 reps[LZMA_NUM_REPS];
++  UInt32 state;
++} CSaveState;
++
++typedef struct
++{
++  IMatchFinder matchFinder;
++  void *matchFinderObj;
++
++  #ifndef _7ZIP_ST
++  Bool mtMode;
++  CMatchFinderMt matchFinderMt;
++  #endif
++
++  CMatchFinder matchFinderBase;
++
++  #ifndef _7ZIP_ST
++  Byte pad[128];
++  #endif
++  
++  UInt32 optimumEndIndex;
++  UInt32 optimumCurrentIndex;
++
++  UInt32 longestMatchLength;
++  UInt32 numPairs;
++  UInt32 numAvail;
++  COptimal opt[kNumOpts];
++  
++  #ifndef LZMA_LOG_BSR
++  Byte g_FastPos[1 << kNumLogBits];
++  #endif
++
++  UInt32 ProbPrices[kBitModelTotal >> kNumMoveReducingBits];
++  UInt32 matches[LZMA_MATCH_LEN_MAX * 2 + 2 + 1];
++  UInt32 numFastBytes;
++  UInt32 additionalOffset;
++  UInt32 reps[LZMA_NUM_REPS];
++  UInt32 state;
++
++  UInt32 posSlotPrices[kNumLenToPosStates][kDistTableSizeMax];
++  UInt32 distancesPrices[kNumLenToPosStates][kNumFullDistances];
++  UInt32 alignPrices[kAlignTableSize];
++  UInt32 alignPriceCount;
++
++  UInt32 distTableSize;
++
++  unsigned lc, lp, pb;
++  unsigned lpMask, pbMask;
++
++  CLzmaProb *litProbs;
++
++  CLzmaProb isMatch[kNumStates][LZMA_NUM_PB_STATES_MAX];
++  CLzmaProb isRep[kNumStates];
++  CLzmaProb isRepG0[kNumStates];
++  CLzmaProb isRepG1[kNumStates];
++  CLzmaProb isRepG2[kNumStates];
++  CLzmaProb isRep0Long[kNumStates][LZMA_NUM_PB_STATES_MAX];
++
++  CLzmaProb posSlotEncoder[kNumLenToPosStates][1 << kNumPosSlotBits];
++  CLzmaProb posEncoders[kNumFullDistances - kEndPosModelIndex];
++  CLzmaProb posAlignEncoder[1 << kNumAlignBits];
++  
++  CLenPriceEnc lenEnc;
++  CLenPriceEnc repLenEnc;
++
++  unsigned lclp;
++
++  Bool fastMode;
++  
++  CRangeEnc rc;
++
++  Bool writeEndMark;
++  UInt64 nowPos64;
++  UInt32 matchPriceCount;
++  Bool finished;
++  Bool multiThread;
++
++  SRes result;
++  UInt32 dictSize;
++  UInt32 matchFinderCycles;
++
++  int needInit;
++
++  CSaveState saveState;
++} CLzmaEnc;
++
++void LzmaEnc_SaveState(CLzmaEncHandle pp)
++{
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  CSaveState *dest = &p->saveState;
++  int i;
++  dest->lenEnc = p->lenEnc;
++  dest->repLenEnc = p->repLenEnc;
++  dest->state = p->state;
++
++  for (i = 0; i < kNumStates; i++)
++  {
++    memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
++    memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
++  }
++  for (i = 0; i < kNumLenToPosStates; i++)
++    memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
++  memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
++  memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
++  memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
++  memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
++  memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
++  memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
++  memcpy(dest->reps, p->reps, sizeof(p->reps));
++  memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb));
++}
++
++void LzmaEnc_RestoreState(CLzmaEncHandle pp)
++{
++  CLzmaEnc *dest = (CLzmaEnc *)pp;
++  const CSaveState *p = &dest->saveState;
++  int i;
++  dest->lenEnc = p->lenEnc;
++  dest->repLenEnc = p->repLenEnc;
++  dest->state = p->state;
++
++  for (i = 0; i < kNumStates; i++)
++  {
++    memcpy(dest->isMatch[i], p->isMatch[i], sizeof(p->isMatch[i]));
++    memcpy(dest->isRep0Long[i], p->isRep0Long[i], sizeof(p->isRep0Long[i]));
++  }
++  for (i = 0; i < kNumLenToPosStates; i++)
++    memcpy(dest->posSlotEncoder[i], p->posSlotEncoder[i], sizeof(p->posSlotEncoder[i]));
++  memcpy(dest->isRep, p->isRep, sizeof(p->isRep));
++  memcpy(dest->isRepG0, p->isRepG0, sizeof(p->isRepG0));
++  memcpy(dest->isRepG1, p->isRepG1, sizeof(p->isRepG1));
++  memcpy(dest->isRepG2, p->isRepG2, sizeof(p->isRepG2));
++  memcpy(dest->posEncoders, p->posEncoders, sizeof(p->posEncoders));
++  memcpy(dest->posAlignEncoder, p->posAlignEncoder, sizeof(p->posAlignEncoder));
++  memcpy(dest->reps, p->reps, sizeof(p->reps));
++  memcpy(dest->litProbs, p->litProbs, (0x300 << dest->lclp) * sizeof(CLzmaProb));
++}
++
++SRes LzmaEnc_SetProps(CLzmaEncHandle pp, const CLzmaEncProps *props2)
++{
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  CLzmaEncProps props = *props2;
++  LzmaEncProps_Normalize(&props);
++
++  if (props.lc > LZMA_LC_MAX || props.lp > LZMA_LP_MAX || props.pb > LZMA_PB_MAX ||
++      props.dictSize > (1 << kDicLogSizeMaxCompress) || props.dictSize > (1 << 30))
++    return SZ_ERROR_PARAM;
++  p->dictSize = props.dictSize;
++  p->matchFinderCycles = props.mc;
++  {
++    unsigned fb = props.fb;
++    if (fb < 5)
++      fb = 5;
++    if (fb > LZMA_MATCH_LEN_MAX)
++      fb = LZMA_MATCH_LEN_MAX;
++    p->numFastBytes = fb;
++  }
++  p->lc = props.lc;
++  p->lp = props.lp;
++  p->pb = props.pb;
++  p->fastMode = (props.algo == 0);
++  p->matchFinderBase.btMode = props.btMode;
++  {
++    UInt32 numHashBytes = 4;
++    if (props.btMode)
++    {
++      if (props.numHashBytes < 2)
++        numHashBytes = 2;
++      else if (props.numHashBytes < 4)
++        numHashBytes = props.numHashBytes;
++    }
++    p->matchFinderBase.numHashBytes = numHashBytes;
++  }
++
++  p->matchFinderBase.cutValue = props.mc;
++
++  p->writeEndMark = props.writeEndMark;
++
++  #ifndef _7ZIP_ST
++  /*
++  if (newMultiThread != _multiThread)
++  {
++    ReleaseMatchFinder();
++    _multiThread = newMultiThread;
++  }
++  */
++  p->multiThread = (props.numThreads > 1);
++  #endif
++
++  return SZ_OK;
++}
++
++static const int kLiteralNextStates[kNumStates] = {0, 0, 0, 0, 1, 2, 3, 4,  5,  6,   4, 5};
++static const int kMatchNextStates[kNumStates]   = {7, 7, 7, 7, 7, 7, 7, 10, 10, 10, 10, 10};
++static const int kRepNextStates[kNumStates]     = {8, 8, 8, 8, 8, 8, 8, 11, 11, 11, 11, 11};
++static const int kShortRepNextStates[kNumStates]= {9, 9, 9, 9, 9, 9, 9, 11, 11, 11, 11, 11};
++
++#define IsCharState(s) ((s) < 7)
++
++#define GetLenToPosState(len) (((len) < kNumLenToPosStates + 1) ? (len) - 2 : kNumLenToPosStates - 1)
++
++#define kInfinityPrice (1 << 30)
++
++static void RangeEnc_Construct(CRangeEnc *p)
++{
++  p->outStream = 0;
++  p->bufBase = 0;
++}
++
++#define RangeEnc_GetProcessed(p) ((p)->processed + ((p)->buf - (p)->bufBase) + (p)->cacheSize)
++
++#define RC_BUF_SIZE (1 << 16)
++static int RangeEnc_Alloc(CRangeEnc *p, ISzAlloc *alloc)
++{
++  if (p->bufBase == 0)
++  {
++    p->bufBase = (Byte *)alloc->Alloc(alloc, RC_BUF_SIZE);
++    if (p->bufBase == 0)
++      return 0;
++    p->bufLim = p->bufBase + RC_BUF_SIZE;
++  }
++  return 1;
++}
++
++static void RangeEnc_Free(CRangeEnc *p, ISzAlloc *alloc)
++{
++  alloc->Free(alloc, p->bufBase);
++  p->bufBase = 0;
++}
++
++static void RangeEnc_Init(CRangeEnc *p)
++{
++  /* Stream.Init(); */
++  p->low = 0;
++  p->range = 0xFFFFFFFF;
++  p->cacheSize = 1;
++  p->cache = 0;
++
++  p->buf = p->bufBase;
++
++  p->processed = 0;
++  p->res = SZ_OK;
++}
++
++static void RangeEnc_FlushStream(CRangeEnc *p)
++{
++  size_t num;
++  if (p->res != SZ_OK)
++    return;
++  num = p->buf - p->bufBase;
++  if (num != p->outStream->Write(p->outStream, p->bufBase, num))
++    p->res = SZ_ERROR_WRITE;
++  p->processed += num;
++  p->buf = p->bufBase;
++}
++
++static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)
++{
++  if ((UInt32)p->low < (UInt32)0xFF000000 || (int)(p->low >> 32) != 0)
++  {
++    Byte temp = p->cache;
++    do
++    {
++      Byte *buf = p->buf;
++      *buf++ = (Byte)(temp + (Byte)(p->low >> 32));
++      p->buf = buf;
++      if (buf == p->bufLim)
++        RangeEnc_FlushStream(p);
++      temp = 0xFF;
++    }
++    while (--p->cacheSize != 0);
++    p->cache = (Byte)((UInt32)p->low >> 24);
++  }
++  p->cacheSize++;
++  p->low = (UInt32)p->low << 8;
++}
++
++static void RangeEnc_FlushData(CRangeEnc *p)
++{
++  int i;
++  for (i = 0; i < 5; i++)
++    RangeEnc_ShiftLow(p);
++}
++
++static void RangeEnc_EncodeDirectBits(CRangeEnc *p, UInt32 value, int numBits)
++{
++  do
++  {
++    p->range >>= 1;
++    p->low += p->range & (0 - ((value >> --numBits) & 1));
++    if (p->range < kTopValue)
++    {
++      p->range <<= 8;
++      RangeEnc_ShiftLow(p);
++    }
++  }
++  while (numBits != 0);
++}
++
++static void RangeEnc_EncodeBit(CRangeEnc *p, CLzmaProb *prob, UInt32 symbol)
++{
++  UInt32 ttt = *prob;
++  UInt32 newBound = (p->range >> kNumBitModelTotalBits) * ttt;
++  if (symbol == 0)
++  {
++    p->range = newBound;
++    ttt += (kBitModelTotal - ttt) >> kNumMoveBits;
++  }
++  else
++  {
++    p->low += newBound;
++    p->range -= newBound;
++    ttt -= ttt >> kNumMoveBits;
++  }
++  *prob = (CLzmaProb)ttt;
++  if (p->range < kTopValue)
++  {
++    p->range <<= 8;
++    RangeEnc_ShiftLow(p);
++  }
++}
++
++static void LitEnc_Encode(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol)
++{
++  symbol |= 0x100;
++  do
++  {
++    RangeEnc_EncodeBit(p, probs + (symbol >> 8), (symbol >> 7) & 1);
++    symbol <<= 1;
++  }
++  while (symbol < 0x10000);
++}
++
++static void LitEnc_EncodeMatched(CRangeEnc *p, CLzmaProb *probs, UInt32 symbol, UInt32 matchByte)
++{
++  UInt32 offs = 0x100;
++  symbol |= 0x100;
++  do
++  {
++    matchByte <<= 1;
++    RangeEnc_EncodeBit(p, probs + (offs + (matchByte & offs) + (symbol >> 8)), (symbol >> 7) & 1);
++    symbol <<= 1;
++    offs &= ~(matchByte ^ symbol);
++  }
++  while (symbol < 0x10000);
++}
++
++void LzmaEnc_InitPriceTables(UInt32 *ProbPrices)
++{
++  UInt32 i;
++  for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits))
++  {
++    const int kCyclesBits = kNumBitPriceShiftBits;
++    UInt32 w = i;
++    UInt32 bitCount = 0;
++    int j;
++    for (j = 0; j < kCyclesBits; j++)
++    {
++      w = w * w;
++      bitCount <<= 1;
++      while (w >= ((UInt32)1 << 16))
++      {
++        w >>= 1;
++        bitCount++;
++      }
++    }
++    ProbPrices[i >> kNumMoveReducingBits] = ((kNumBitModelTotalBits << kCyclesBits) - 15 - bitCount);
++  }
++}
++
++
++#define GET_PRICE(prob, symbol) \
++  p->ProbPrices[((prob) ^ (((-(int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
++
++#define GET_PRICEa(prob, symbol) \
++  ProbPrices[((prob) ^ ((-((int)(symbol))) & (kBitModelTotal - 1))) >> kNumMoveReducingBits];
++
++#define GET_PRICE_0(prob) p->ProbPrices[(prob) >> kNumMoveReducingBits]
++#define GET_PRICE_1(prob) p->ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
++
++#define GET_PRICE_0a(prob) ProbPrices[(prob) >> kNumMoveReducingBits]
++#define GET_PRICE_1a(prob) ProbPrices[((prob) ^ (kBitModelTotal - 1)) >> kNumMoveReducingBits]
++
++static UInt32 LitEnc_GetPrice(const CLzmaProb *probs, UInt32 symbol, UInt32 *ProbPrices)
++{
++  UInt32 price = 0;
++  symbol |= 0x100;
++  do
++  {
++    price += GET_PRICEa(probs[symbol >> 8], (symbol >> 7) & 1);
++    symbol <<= 1;
++  }
++  while (symbol < 0x10000);
++  return price;
++}
++
++static UInt32 LitEnc_GetPriceMatched(const CLzmaProb *probs, UInt32 symbol, UInt32 matchByte, UInt32 *ProbPrices)
++{
++  UInt32 price = 0;
++  UInt32 offs = 0x100;
++  symbol |= 0x100;
++  do
++  {
++    matchByte <<= 1;
++    price += GET_PRICEa(probs[offs + (matchByte & offs) + (symbol >> 8)], (symbol >> 7) & 1);
++    symbol <<= 1;
++    offs &= ~(matchByte ^ symbol);
++  }
++  while (symbol < 0x10000);
++  return price;
++}
++
++
++static void RcTree_Encode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol)
++{
++  UInt32 m = 1;
++  int i;
++  for (i = numBitLevels; i != 0;)
++  {
++    UInt32 bit;
++    i--;
++    bit = (symbol >> i) & 1;
++    RangeEnc_EncodeBit(rc, probs + m, bit);
++    m = (m << 1) | bit;
++  }
++}
++
++static void RcTree_ReverseEncode(CRangeEnc *rc, CLzmaProb *probs, int numBitLevels, UInt32 symbol)
++{
++  UInt32 m = 1;
++  int i;
++  for (i = 0; i < numBitLevels; i++)
++  {
++    UInt32 bit = symbol & 1;
++    RangeEnc_EncodeBit(rc, probs + m, bit);
++    m = (m << 1) | bit;
++    symbol >>= 1;
++  }
++}
++
++static UInt32 RcTree_GetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices)
++{
++  UInt32 price = 0;
++  symbol |= (1 << numBitLevels);
++  while (symbol != 1)
++  {
++    price += GET_PRICEa(probs[symbol >> 1], symbol & 1);
++    symbol >>= 1;
++  }
++  return price;
++}
++
++static UInt32 RcTree_ReverseGetPrice(const CLzmaProb *probs, int numBitLevels, UInt32 symbol, UInt32 *ProbPrices)
++{
++  UInt32 price = 0;
++  UInt32 m = 1;
++  int i;
++  for (i = numBitLevels; i != 0; i--)
++  {
++    UInt32 bit = symbol & 1;
++    symbol >>= 1;
++    price += GET_PRICEa(probs[m], bit);
++    m = (m << 1) | bit;
++  }
++  return price;
++}
++
++
++static void LenEnc_Init(CLenEnc *p)
++{
++  unsigned i;
++  p->choice = p->choice2 = kProbInitValue;
++  for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumLowBits); i++)
++    p->low[i] = kProbInitValue;
++  for (i = 0; i < (LZMA_NUM_PB_STATES_MAX << kLenNumMidBits); i++)
++    p->mid[i] = kProbInitValue;
++  for (i = 0; i < kLenNumHighSymbols; i++)
++    p->high[i] = kProbInitValue;
++}
++
++static void LenEnc_Encode(CLenEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState)
++{
++  if (symbol < kLenNumLowSymbols)
++  {
++    RangeEnc_EncodeBit(rc, &p->choice, 0);
++    RcTree_Encode(rc, p->low + (posState << kLenNumLowBits), kLenNumLowBits, symbol);
++  }
++  else
++  {
++    RangeEnc_EncodeBit(rc, &p->choice, 1);
++    if (symbol < kLenNumLowSymbols + kLenNumMidSymbols)
++    {
++      RangeEnc_EncodeBit(rc, &p->choice2, 0);
++      RcTree_Encode(rc, p->mid + (posState << kLenNumMidBits), kLenNumMidBits, symbol - kLenNumLowSymbols);
++    }
++    else
++    {
++      RangeEnc_EncodeBit(rc, &p->choice2, 1);
++      RcTree_Encode(rc, p->high, kLenNumHighBits, symbol - kLenNumLowSymbols - kLenNumMidSymbols);
++    }
++  }
++}
++
++static void LenEnc_SetPrices(CLenEnc *p, UInt32 posState, UInt32 numSymbols, UInt32 *prices, UInt32 *ProbPrices)
++{
++  UInt32 a0 = GET_PRICE_0a(p->choice);
++  UInt32 a1 = GET_PRICE_1a(p->choice);
++  UInt32 b0 = a1 + GET_PRICE_0a(p->choice2);
++  UInt32 b1 = a1 + GET_PRICE_1a(p->choice2);
++  UInt32 i = 0;
++  for (i = 0; i < kLenNumLowSymbols; i++)
++  {
++    if (i >= numSymbols)
++      return;
++    prices[i] = a0 + RcTree_GetPrice(p->low + (posState << kLenNumLowBits), kLenNumLowBits, i, ProbPrices);
++  }
++  for (; i < kLenNumLowSymbols + kLenNumMidSymbols; i++)
++  {
++    if (i >= numSymbols)
++      return;
++    prices[i] = b0 + RcTree_GetPrice(p->mid + (posState << kLenNumMidBits), kLenNumMidBits, i - kLenNumLowSymbols, ProbPrices);
++  }
++  for (; i < numSymbols; i++)
++    prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits, i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices);
++}
++
++static void MY_FAST_CALL LenPriceEnc_UpdateTable(CLenPriceEnc *p, UInt32 posState, UInt32 *ProbPrices)
++{
++  LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices);
++  p->counters[posState] = p->tableSize;
++}
++
++static void LenPriceEnc_UpdateTables(CLenPriceEnc *p, UInt32 numPosStates, UInt32 *ProbPrices)
++{
++  UInt32 posState;
++  for (posState = 0; posState < numPosStates; posState++)
++    LenPriceEnc_UpdateTable(p, posState, ProbPrices);
++}
++
++static void LenEnc_Encode2(CLenPriceEnc *p, CRangeEnc *rc, UInt32 symbol, UInt32 posState, Bool updatePrice, UInt32 *ProbPrices)
++{
++  LenEnc_Encode(&p->p, rc, symbol, posState);
++  if (updatePrice)
++    if (--p->counters[posState] == 0)
++      LenPriceEnc_UpdateTable(p, posState, ProbPrices);
++}
++
++
++
++
++static void MovePos(CLzmaEnc *p, UInt32 num)
++{
++  #ifdef SHOW_STAT
++  ttt += num;
++  printf("\n MovePos %d", num);
++  #endif
++  if (num != 0)
++  {
++    p->additionalOffset += num;
++    p->matchFinder.Skip(p->matchFinderObj, num);
++  }
++}
++
++static UInt32 ReadMatchDistances(CLzmaEnc *p, UInt32 *numDistancePairsRes)
++{
++  UInt32 lenRes = 0, numPairs;
++  p->numAvail = p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
++  numPairs = p->matchFinder.GetMatches(p->matchFinderObj, p->matches);
++  #ifdef SHOW_STAT
++  printf("\n i = %d numPairs = %d    ", ttt, numPairs / 2);
++  ttt++;
++  {
++    UInt32 i;
++    for (i = 0; i < numPairs; i += 2)
++      printf("%2d %6d   | ", p->matches[i], p->matches[i + 1]);
++  }
++  #endif
++  if (numPairs > 0)
++  {
++    lenRes = p->matches[numPairs - 2];
++    if (lenRes == p->numFastBytes)
++    {
++      const Byte *pby = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
++      UInt32 distance = p->matches[numPairs - 1] + 1;
++      UInt32 numAvail = p->numAvail;
++      if (numAvail > LZMA_MATCH_LEN_MAX)
++        numAvail = LZMA_MATCH_LEN_MAX;
++      {
++        const Byte *pby2 = pby - distance;
++        for (; lenRes < numAvail && pby[lenRes] == pby2[lenRes]; lenRes++);
++      }
++    }
++  }
++  p->additionalOffset++;
++  *numDistancePairsRes = numPairs;
++  return lenRes;
++}
++
++
++#define MakeAsChar(p) (p)->backPrev = (UInt32)(-1); (p)->prev1IsChar = False;
++#define MakeAsShortRep(p) (p)->backPrev = 0; (p)->prev1IsChar = False;
++#define IsShortRep(p) ((p)->backPrev == 0)
++
++static UInt32 GetRepLen1Price(CLzmaEnc *p, UInt32 state, UInt32 posState)
++{
++  return
++    GET_PRICE_0(p->isRepG0[state]) +
++    GET_PRICE_0(p->isRep0Long[state][posState]);
++}
++
++static UInt32 GetPureRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 state, UInt32 posState)
++{
++  UInt32 price;
++  if (repIndex == 0)
++  {
++    price = GET_PRICE_0(p->isRepG0[state]);
++    price += GET_PRICE_1(p->isRep0Long[state][posState]);
++  }
++  else
++  {
++    price = GET_PRICE_1(p->isRepG0[state]);
++    if (repIndex == 1)
++      price += GET_PRICE_0(p->isRepG1[state]);
++    else
++    {
++      price += GET_PRICE_1(p->isRepG1[state]);
++      price += GET_PRICE(p->isRepG2[state], repIndex - 2);
++    }
++  }
++  return price;
++}
++
++static UInt32 GetRepPrice(CLzmaEnc *p, UInt32 repIndex, UInt32 len, UInt32 state, UInt32 posState)
++{
++  return p->repLenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN] +
++    GetPureRepPrice(p, repIndex, state, posState);
++}
++
++static UInt32 Backward(CLzmaEnc *p, UInt32 *backRes, UInt32 cur)
++{
++  UInt32 posMem = p->opt[cur].posPrev;
++  UInt32 backMem = p->opt[cur].backPrev;
++  p->optimumEndIndex = cur;
++  do
++  {
++    if (p->opt[cur].prev1IsChar)
++    {
++      MakeAsChar(&p->opt[posMem])
++      p->opt[posMem].posPrev = posMem - 1;
++      if (p->opt[cur].prev2)
++      {
++        p->opt[posMem - 1].prev1IsChar = False;
++        p->opt[posMem - 1].posPrev = p->opt[cur].posPrev2;
++        p->opt[posMem - 1].backPrev = p->opt[cur].backPrev2;
++      }
++    }
++    {
++      UInt32 posPrev = posMem;
++      UInt32 backCur = backMem;
++      
++      backMem = p->opt[posPrev].backPrev;
++      posMem = p->opt[posPrev].posPrev;
++      
++      p->opt[posPrev].backPrev = backCur;
++      p->opt[posPrev].posPrev = cur;
++      cur = posPrev;
++    }
++  }
++  while (cur != 0);
++  *backRes = p->opt[0].backPrev;
++  p->optimumCurrentIndex  = p->opt[0].posPrev;
++  return p->optimumCurrentIndex;
++}
++
++#define LIT_PROBS(pos, prevByte) (p->litProbs + ((((pos) & p->lpMask) << p->lc) + ((prevByte) >> (8 - p->lc))) * 0x300)
++
++static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, UInt32 *backRes)
++{
++  UInt32 numAvail, mainLen, numPairs, repMaxIndex, i, posState, lenEnd, len, cur;
++  UInt32 matchPrice, repMatchPrice, normalMatchPrice;
++  UInt32 reps[LZMA_NUM_REPS], repLens[LZMA_NUM_REPS];
++  UInt32 *matches;
++  const Byte *data;
++  Byte curByte, matchByte;
++  if (p->optimumEndIndex != p->optimumCurrentIndex)
++  {
++    const COptimal *opt = &p->opt[p->optimumCurrentIndex];
++    UInt32 lenRes = opt->posPrev - p->optimumCurrentIndex;
++    *backRes = opt->backPrev;
++    p->optimumCurrentIndex = opt->posPrev;
++    return lenRes;
++  }
++  p->optimumCurrentIndex = p->optimumEndIndex = 0;
++  
++  if (p->additionalOffset == 0)
++    mainLen = ReadMatchDistances(p, &numPairs);
++  else
++  {
++    mainLen = p->longestMatchLength;
++    numPairs = p->numPairs;
++  }
++
++  numAvail = p->numAvail;
++  if (numAvail < 2)
++  {
++    *backRes = (UInt32)(-1);
++    return 1;
++  }
++  if (numAvail > LZMA_MATCH_LEN_MAX)
++    numAvail = LZMA_MATCH_LEN_MAX;
++
++  data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
++  repMaxIndex = 0;
++  for (i = 0; i < LZMA_NUM_REPS; i++)
++  {
++    UInt32 lenTest;
++    const Byte *data2;
++    reps[i] = p->reps[i];
++    data2 = data - (reps[i] + 1);
++    if (data[0] != data2[0] || data[1] != data2[1])
++    {
++      repLens[i] = 0;
++      continue;
++    }
++    for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++);
++    repLens[i] = lenTest;
++    if (lenTest > repLens[repMaxIndex])
++      repMaxIndex = i;
++  }
++  if (repLens[repMaxIndex] >= p->numFastBytes)
++  {
++    UInt32 lenRes;
++    *backRes = repMaxIndex;
++    lenRes = repLens[repMaxIndex];
++    MovePos(p, lenRes - 1);
++    return lenRes;
++  }
++
++  matches = p->matches;
++  if (mainLen >= p->numFastBytes)
++  {
++    *backRes = matches[numPairs - 1] + LZMA_NUM_REPS;
++    MovePos(p, mainLen - 1);
++    return mainLen;
++  }
++  curByte = *data;
++  matchByte = *(data - (reps[0] + 1));
++
++  if (mainLen < 2 && curByte != matchByte && repLens[repMaxIndex] < 2)
++  {
++    *backRes = (UInt32)-1;
++    return 1;
++  }
++
++  p->opt[0].state = (CState)p->state;
++
++  posState = (position & p->pbMask);
++
++  {
++    const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
++    p->opt[1].price = GET_PRICE_0(p->isMatch[p->state][posState]) +
++        (!IsCharState(p->state) ?
++          LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices) :
++          LitEnc_GetPrice(probs, curByte, p->ProbPrices));
++  }
++
++  MakeAsChar(&p->opt[1]);
++
++  matchPrice = GET_PRICE_1(p->isMatch[p->state][posState]);
++  repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[p->state]);
++
++  if (matchByte == curByte)
++  {
++    UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, p->state, posState);
++    if (shortRepPrice < p->opt[1].price)
++    {
++      p->opt[1].price = shortRepPrice;
++      MakeAsShortRep(&p->opt[1]);
++    }
++  }
++  lenEnd = ((mainLen >= repLens[repMaxIndex]) ? mainLen : repLens[repMaxIndex]);
++
++  if (lenEnd < 2)
++  {
++    *backRes = p->opt[1].backPrev;
++    return 1;
++  }
++
++  p->opt[1].posPrev = 0;
++  for (i = 0; i < LZMA_NUM_REPS; i++)
++    p->opt[0].backs[i] = reps[i];
++
++  len = lenEnd;
++  do
++    p->opt[len--].price = kInfinityPrice;
++  while (len >= 2);
++
++  for (i = 0; i < LZMA_NUM_REPS; i++)
++  {
++    UInt32 repLen = repLens[i];
++    UInt32 price;
++    if (repLen < 2)
++      continue;
++    price = repMatchPrice + GetPureRepPrice(p, i, p->state, posState);
++    do
++    {
++      UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][repLen - 2];
++      COptimal *opt = &p->opt[repLen];
++      if (curAndLenPrice < opt->price)
++      {
++        opt->price = curAndLenPrice;
++        opt->posPrev = 0;
++        opt->backPrev = i;
++        opt->prev1IsChar = False;
++      }
++    }
++    while (--repLen >= 2);
++  }
++
++  normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[p->state]);
++
++  len = ((repLens[0] >= 2) ? repLens[0] + 1 : 2);
++  if (len <= mainLen)
++  {
++    UInt32 offs = 0;
++    while (len > matches[offs])
++      offs += 2;
++    for (; ; len++)
++    {
++      COptimal *opt;
++      UInt32 distance = matches[offs + 1];
++
++      UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][len - LZMA_MATCH_LEN_MIN];
++      UInt32 lenToPosState = GetLenToPosState(len);
++      if (distance < kNumFullDistances)
++        curAndLenPrice += p->distancesPrices[lenToPosState][distance];
++      else
++      {
++        UInt32 slot;
++        GetPosSlot2(distance, slot);
++        curAndLenPrice += p->alignPrices[distance & kAlignMask] + p->posSlotPrices[lenToPosState][slot];
++      }
++      opt = &p->opt[len];
++      if (curAndLenPrice < opt->price)
++      {
++        opt->price = curAndLenPrice;
++        opt->posPrev = 0;
++        opt->backPrev = distance + LZMA_NUM_REPS;
++        opt->prev1IsChar = False;
++      }
++      if (len == matches[offs])
++      {
++        offs += 2;
++        if (offs == numPairs)
++          break;
++      }
++    }
++  }
++
++  cur = 0;
++
++    #ifdef SHOW_STAT2
++    if (position >= 0)
++    {
++      unsigned i;
++      printf("\n pos = %4X", position);
++      for (i = cur; i <= lenEnd; i++)
++      printf("\nprice[%4X] = %d", position - cur + i, p->opt[i].price);
++    }
++    #endif
++
++  for (;;)
++  {
++    UInt32 numAvailFull, newLen, numPairs, posPrev, state, posState, startLen;
++    UInt32 curPrice, curAnd1Price, matchPrice, repMatchPrice;
++    Bool nextIsChar;
++    Byte curByte, matchByte;
++    const Byte *data;
++    COptimal *curOpt;
++    COptimal *nextOpt;
++
++    cur++;
++    if (cur == lenEnd)
++      return Backward(p, backRes, cur);
++
++    newLen = ReadMatchDistances(p, &numPairs);
++    if (newLen >= p->numFastBytes)
++    {
++      p->numPairs = numPairs;
++      p->longestMatchLength = newLen;
++      return Backward(p, backRes, cur);
++    }
++    position++;
++    curOpt = &p->opt[cur];
++    posPrev = curOpt->posPrev;
++    if (curOpt->prev1IsChar)
++    {
++      posPrev--;
++      if (curOpt->prev2)
++      {
++        state = p->opt[curOpt->posPrev2].state;
++        if (curOpt->backPrev2 < LZMA_NUM_REPS)
++          state = kRepNextStates[state];
++        else
++          state = kMatchNextStates[state];
++      }
++      else
++        state = p->opt[posPrev].state;
++      state = kLiteralNextStates[state];
++    }
++    else
++      state = p->opt[posPrev].state;
++    if (posPrev == cur - 1)
++    {
++      if (IsShortRep(curOpt))
++        state = kShortRepNextStates[state];
++      else
++        state = kLiteralNextStates[state];
++    }
++    else
++    {
++      UInt32 pos;
++      const COptimal *prevOpt;
++      if (curOpt->prev1IsChar && curOpt->prev2)
++      {
++        posPrev = curOpt->posPrev2;
++        pos = curOpt->backPrev2;
++        state = kRepNextStates[state];
++      }
++      else
++      {
++        pos = curOpt->backPrev;
++        if (pos < LZMA_NUM_REPS)
++          state = kRepNextStates[state];
++        else
++          state = kMatchNextStates[state];
++      }
++      prevOpt = &p->opt[posPrev];
++      if (pos < LZMA_NUM_REPS)
++      {
++        UInt32 i;
++        reps[0] = prevOpt->backs[pos];
++        for (i = 1; i <= pos; i++)
++          reps[i] = prevOpt->backs[i - 1];
++        for (; i < LZMA_NUM_REPS; i++)
++          reps[i] = prevOpt->backs[i];
++      }
++      else
++      {
++        UInt32 i;
++        reps[0] = (pos - LZMA_NUM_REPS);
++        for (i = 1; i < LZMA_NUM_REPS; i++)
++          reps[i] = prevOpt->backs[i - 1];
++      }
++    }
++    curOpt->state = (CState)state;
++
++    curOpt->backs[0] = reps[0];
++    curOpt->backs[1] = reps[1];
++    curOpt->backs[2] = reps[2];
++    curOpt->backs[3] = reps[3];
++
++    curPrice = curOpt->price;
++    nextIsChar = False;
++    data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
++    curByte = *data;
++    matchByte = *(data - (reps[0] + 1));
++
++    posState = (position & p->pbMask);
++
++    curAnd1Price = curPrice + GET_PRICE_0(p->isMatch[state][posState]);
++    {
++      const CLzmaProb *probs = LIT_PROBS(position, *(data - 1));
++      curAnd1Price +=
++        (!IsCharState(state) ?
++          LitEnc_GetPriceMatched(probs, curByte, matchByte, p->ProbPrices) :
++          LitEnc_GetPrice(probs, curByte, p->ProbPrices));
++    }
++
++    nextOpt = &p->opt[cur + 1];
++
++    if (curAnd1Price < nextOpt->price)
++    {
++      nextOpt->price = curAnd1Price;
++      nextOpt->posPrev = cur;
++      MakeAsChar(nextOpt);
++      nextIsChar = True;
++    }
++
++    matchPrice = curPrice + GET_PRICE_1(p->isMatch[state][posState]);
++    repMatchPrice = matchPrice + GET_PRICE_1(p->isRep[state]);
++    
++    if (matchByte == curByte && !(nextOpt->posPrev < cur && nextOpt->backPrev == 0))
++    {
++      UInt32 shortRepPrice = repMatchPrice + GetRepLen1Price(p, state, posState);
++      if (shortRepPrice <= nextOpt->price)
++      {
++        nextOpt->price = shortRepPrice;
++        nextOpt->posPrev = cur;
++        MakeAsShortRep(nextOpt);
++        nextIsChar = True;
++      }
++    }
++    numAvailFull = p->numAvail;
++    {
++      UInt32 temp = kNumOpts - 1 - cur;
++      if (temp < numAvailFull)
++        numAvailFull = temp;
++    }
++
++    if (numAvailFull < 2)
++      continue;
++    numAvail = (numAvailFull <= p->numFastBytes ? numAvailFull : p->numFastBytes);
++
++    if (!nextIsChar && matchByte != curByte) /* speed optimization */
++    {
++      /* try Literal + rep0 */
++      UInt32 temp;
++      UInt32 lenTest2;
++      const Byte *data2 = data - (reps[0] + 1);
++      UInt32 limit = p->numFastBytes + 1;
++      if (limit > numAvailFull)
++        limit = numAvailFull;
++
++      for (temp = 1; temp < limit && data[temp] == data2[temp]; temp++);
++      lenTest2 = temp - 1;
++      if (lenTest2 >= 2)
++      {
++        UInt32 state2 = kLiteralNextStates[state];
++        UInt32 posStateNext = (position + 1) & p->pbMask;
++        UInt32 nextRepMatchPrice = curAnd1Price +
++            GET_PRICE_1(p->isMatch[state2][posStateNext]) +
++            GET_PRICE_1(p->isRep[state2]);
++        /* for (; lenTest2 >= 2; lenTest2--) */
++        {
++          UInt32 curAndLenPrice;
++          COptimal *opt;
++          UInt32 offset = cur + 1 + lenTest2;
++          while (lenEnd < offset)
++            p->opt[++lenEnd].price = kInfinityPrice;
++          curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
++          opt = &p->opt[offset];
++          if (curAndLenPrice < opt->price)
++          {
++            opt->price = curAndLenPrice;
++            opt->posPrev = cur + 1;
++            opt->backPrev = 0;
++            opt->prev1IsChar = True;
++            opt->prev2 = False;
++          }
++        }
++      }
++    }
++    
++    startLen = 2; /* speed optimization */
++    {
++    UInt32 repIndex;
++    for (repIndex = 0; repIndex < LZMA_NUM_REPS; repIndex++)
++    {
++      UInt32 lenTest;
++      UInt32 lenTestTemp;
++      UInt32 price;
++      const Byte *data2 = data - (reps[repIndex] + 1);
++      if (data[0] != data2[0] || data[1] != data2[1])
++        continue;
++      for (lenTest = 2; lenTest < numAvail && data[lenTest] == data2[lenTest]; lenTest++);
++      while (lenEnd < cur + lenTest)
++        p->opt[++lenEnd].price = kInfinityPrice;
++      lenTestTemp = lenTest;
++      price = repMatchPrice + GetPureRepPrice(p, repIndex, state, posState);
++      do
++      {
++        UInt32 curAndLenPrice = price + p->repLenEnc.prices[posState][lenTest - 2];
++        COptimal *opt = &p->opt[cur + lenTest];
++        if (curAndLenPrice < opt->price)
++        {
++          opt->price = curAndLenPrice;
++          opt->posPrev = cur;
++          opt->backPrev = repIndex;
++          opt->prev1IsChar = False;
++        }
++      }
++      while (--lenTest >= 2);
++      lenTest = lenTestTemp;
++      
++      if (repIndex == 0)
++        startLen = lenTest + 1;
++        
++      /* if (_maxMode) */
++        {
++          UInt32 lenTest2 = lenTest + 1;
++          UInt32 limit = lenTest2 + p->numFastBytes;
++          UInt32 nextRepMatchPrice;
++          if (limit > numAvailFull)
++            limit = numAvailFull;
++          for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
++          lenTest2 -= lenTest + 1;
++          if (lenTest2 >= 2)
++          {
++            UInt32 state2 = kRepNextStates[state];
++            UInt32 posStateNext = (position + lenTest) & p->pbMask;
++            UInt32 curAndLenCharPrice =
++                price + p->repLenEnc.prices[posState][lenTest - 2] +
++                GET_PRICE_0(p->isMatch[state2][posStateNext]) +
++                LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]),
++                    data[lenTest], data2[lenTest], p->ProbPrices);
++            state2 = kLiteralNextStates[state2];
++            posStateNext = (position + lenTest + 1) & p->pbMask;
++            nextRepMatchPrice = curAndLenCharPrice +
++                GET_PRICE_1(p->isMatch[state2][posStateNext]) +
++                GET_PRICE_1(p->isRep[state2]);
++            
++            /* for (; lenTest2 >= 2; lenTest2--) */
++            {
++              UInt32 curAndLenPrice;
++              COptimal *opt;
++              UInt32 offset = cur + lenTest + 1 + lenTest2;
++              while (lenEnd < offset)
++                p->opt[++lenEnd].price = kInfinityPrice;
++              curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
++              opt = &p->opt[offset];
++              if (curAndLenPrice < opt->price)
++              {
++                opt->price = curAndLenPrice;
++                opt->posPrev = cur + lenTest + 1;
++                opt->backPrev = 0;
++                opt->prev1IsChar = True;
++                opt->prev2 = True;
++                opt->posPrev2 = cur;
++                opt->backPrev2 = repIndex;
++              }
++            }
++          }
++        }
++    }
++    }
++    /* for (UInt32 lenTest = 2; lenTest <= newLen; lenTest++) */
++    if (newLen > numAvail)
++    {
++      newLen = numAvail;
++      for (numPairs = 0; newLen > matches[numPairs]; numPairs += 2);
++      matches[numPairs] = newLen;
++      numPairs += 2;
++    }
++    if (newLen >= startLen)
++    {
++      UInt32 normalMatchPrice = matchPrice + GET_PRICE_0(p->isRep[state]);
++      UInt32 offs, curBack, posSlot;
++      UInt32 lenTest;
++      while (lenEnd < cur + newLen)
++        p->opt[++lenEnd].price = kInfinityPrice;
++
++      offs = 0;
++      while (startLen > matches[offs])
++        offs += 2;
++      curBack = matches[offs + 1];
++      GetPosSlot2(curBack, posSlot);
++      for (lenTest = /*2*/ startLen; ; lenTest++)
++      {
++        UInt32 curAndLenPrice = normalMatchPrice + p->lenEnc.prices[posState][lenTest - LZMA_MATCH_LEN_MIN];
++        UInt32 lenToPosState = GetLenToPosState(lenTest);
++        COptimal *opt;
++        if (curBack < kNumFullDistances)
++          curAndLenPrice += p->distancesPrices[lenToPosState][curBack];
++        else
++          curAndLenPrice += p->posSlotPrices[lenToPosState][posSlot] + p->alignPrices[curBack & kAlignMask];
++        
++        opt = &p->opt[cur + lenTest];
++        if (curAndLenPrice < opt->price)
++        {
++          opt->price = curAndLenPrice;
++          opt->posPrev = cur;
++          opt->backPrev = curBack + LZMA_NUM_REPS;
++          opt->prev1IsChar = False;
++        }
++
++        if (/*_maxMode && */lenTest == matches[offs])
++        {
++          /* Try Match + Literal + Rep0 */
++          const Byte *data2 = data - (curBack + 1);
++          UInt32 lenTest2 = lenTest + 1;
++          UInt32 limit = lenTest2 + p->numFastBytes;
++          UInt32 nextRepMatchPrice;
++          if (limit > numAvailFull)
++            limit = numAvailFull;
++          for (; lenTest2 < limit && data[lenTest2] == data2[lenTest2]; lenTest2++);
++          lenTest2 -= lenTest + 1;
++          if (lenTest2 >= 2)
++          {
++            UInt32 state2 = kMatchNextStates[state];
++            UInt32 posStateNext = (position + lenTest) & p->pbMask;
++            UInt32 curAndLenCharPrice = curAndLenPrice +
++                GET_PRICE_0(p->isMatch[state2][posStateNext]) +
++                LitEnc_GetPriceMatched(LIT_PROBS(position + lenTest, data[lenTest - 1]),
++                    data[lenTest], data2[lenTest], p->ProbPrices);
++            state2 = kLiteralNextStates[state2];
++            posStateNext = (posStateNext + 1) & p->pbMask;
++            nextRepMatchPrice = curAndLenCharPrice +
++                GET_PRICE_1(p->isMatch[state2][posStateNext]) +
++                GET_PRICE_1(p->isRep[state2]);
++            
++            /* for (; lenTest2 >= 2; lenTest2--) */
++            {
++              UInt32 offset = cur + lenTest + 1 + lenTest2;
++              UInt32 curAndLenPrice;
++              COptimal *opt;
++              while (lenEnd < offset)
++                p->opt[++lenEnd].price = kInfinityPrice;
++              curAndLenPrice = nextRepMatchPrice + GetRepPrice(p, 0, lenTest2, state2, posStateNext);
++              opt = &p->opt[offset];
++              if (curAndLenPrice < opt->price)
++              {
++                opt->price = curAndLenPrice;
++                opt->posPrev = cur + lenTest + 1;
++                opt->backPrev = 0;
++                opt->prev1IsChar = True;
++                opt->prev2 = True;
++                opt->posPrev2 = cur;
++                opt->backPrev2 = curBack + LZMA_NUM_REPS;
++              }
++            }
++          }
++          offs += 2;
++          if (offs == numPairs)
++            break;
++          curBack = matches[offs + 1];
++          if (curBack >= kNumFullDistances)
++            GetPosSlot2(curBack, posSlot);
++        }
++      }
++    }
++  }
++}
++
++#define ChangePair(smallDist, bigDist) (((bigDist) >> 7) > (smallDist))
++
++static UInt32 GetOptimumFast(CLzmaEnc *p, UInt32 *backRes)
++{
++  UInt32 numAvail, mainLen, mainDist, numPairs, repIndex, repLen, i;
++  const Byte *data;
++  const UInt32 *matches;
++
++  if (p->additionalOffset == 0)
++    mainLen = ReadMatchDistances(p, &numPairs);
++  else
++  {
++    mainLen = p->longestMatchLength;
++    numPairs = p->numPairs;
++  }
++
++  numAvail = p->numAvail;
++  *backRes = (UInt32)-1;
++  if (numAvail < 2)
++    return 1;
++  if (numAvail > LZMA_MATCH_LEN_MAX)
++    numAvail = LZMA_MATCH_LEN_MAX;
++  data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
++
++  repLen = repIndex = 0;
++  for (i = 0; i < LZMA_NUM_REPS; i++)
++  {
++    UInt32 len;
++    const Byte *data2 = data - (p->reps[i] + 1);
++    if (data[0] != data2[0] || data[1] != data2[1])
++      continue;
++    for (len = 2; len < numAvail && data[len] == data2[len]; len++);
++    if (len >= p->numFastBytes)
++    {
++      *backRes = i;
++      MovePos(p, len - 1);
++      return len;
++    }
++    if (len > repLen)
++    {
++      repIndex = i;
++      repLen = len;
++    }
++  }
++
++  matches = p->matches;
++  if (mainLen >= p->numFastBytes)
++  {
++    *backRes = matches[numPairs - 1] + LZMA_NUM_REPS;
++    MovePos(p, mainLen - 1);
++    return mainLen;
++  }
++
++  mainDist = 0; /* for GCC */
++  if (mainLen >= 2)
++  {
++    mainDist = matches[numPairs - 1];
++    while (numPairs > 2 && mainLen == matches[numPairs - 4] + 1)
++    {
++      if (!ChangePair(matches[numPairs - 3], mainDist))
++        break;
++      numPairs -= 2;
++      mainLen = matches[numPairs - 2];
++      mainDist = matches[numPairs - 1];
++    }
++    if (mainLen == 2 && mainDist >= 0x80)
++      mainLen = 1;
++  }
++
++  if (repLen >= 2 && (
++        (repLen + 1 >= mainLen) ||
++        (repLen + 2 >= mainLen && mainDist >= (1 << 9)) ||
++        (repLen + 3 >= mainLen && mainDist >= (1 << 15))))
++  {
++    *backRes = repIndex;
++    MovePos(p, repLen - 1);
++    return repLen;
++  }
++  
++  if (mainLen < 2 || numAvail <= 2)
++    return 1;
++
++  p->longestMatchLength = ReadMatchDistances(p, &p->numPairs);
++  if (p->longestMatchLength >= 2)
++  {
++    UInt32 newDistance = matches[p->numPairs - 1];
++    if ((p->longestMatchLength >= mainLen && newDistance < mainDist) ||
++        (p->longestMatchLength == mainLen + 1 && !ChangePair(mainDist, newDistance)) ||
++        (p->longestMatchLength > mainLen + 1) ||
++        (p->longestMatchLength + 1 >= mainLen && mainLen >= 3 && ChangePair(newDistance, mainDist)))
++      return 1;
++  }
++  
++  data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - 1;
++  for (i = 0; i < LZMA_NUM_REPS; i++)
++  {
++    UInt32 len, limit;
++    const Byte *data2 = data - (p->reps[i] + 1);
++    if (data[0] != data2[0] || data[1] != data2[1])
++      continue;
++    limit = mainLen - 1;
++    for (len = 2; len < limit && data[len] == data2[len]; len++);
++    if (len >= limit)
++      return 1;
++  }
++  *backRes = mainDist + LZMA_NUM_REPS;
++  MovePos(p, mainLen - 2);
++  return mainLen;
++}
++
++static void WriteEndMarker(CLzmaEnc *p, UInt32 posState)
++{
++  UInt32 len;
++  RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
++  RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
++  p->state = kMatchNextStates[p->state];
++  len = LZMA_MATCH_LEN_MIN;
++  LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices);
++  RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, (1 << kNumPosSlotBits) - 1);
++  RangeEnc_EncodeDirectBits(&p->rc, (((UInt32)1 << 30) - 1) >> kNumAlignBits, 30 - kNumAlignBits);
++  RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, kAlignMask);
++}
++
++static SRes CheckErrors(CLzmaEnc *p)
++{
++  if (p->result != SZ_OK)
++    return p->result;
++  if (p->rc.res != SZ_OK)
++    p->result = SZ_ERROR_WRITE;
++  if (p->matchFinderBase.result != SZ_OK)
++    p->result = SZ_ERROR_READ;
++  if (p->result != SZ_OK)
++    p->finished = True;
++  return p->result;
++}
++
++static SRes Flush(CLzmaEnc *p, UInt32 nowPos)
++{
++  /* ReleaseMFStream(); */
++  p->finished = True;
++  if (p->writeEndMark)
++    WriteEndMarker(p, nowPos & p->pbMask);
++  RangeEnc_FlushData(&p->rc);
++  RangeEnc_FlushStream(&p->rc);
++  return CheckErrors(p);
++}
++
++static void FillAlignPrices(CLzmaEnc *p)
++{
++  UInt32 i;
++  for (i = 0; i < kAlignTableSize; i++)
++    p->alignPrices[i] = RcTree_ReverseGetPrice(p->posAlignEncoder, kNumAlignBits, i, p->ProbPrices);
++  p->alignPriceCount = 0;
++}
++
++static void FillDistancesPrices(CLzmaEnc *p)
++{
++  UInt32 tempPrices[kNumFullDistances];
++  UInt32 i, lenToPosState;
++  for (i = kStartPosModelIndex; i < kNumFullDistances; i++)
++  {
++    UInt32 posSlot = GetPosSlot1(i);
++    UInt32 footerBits = ((posSlot >> 1) - 1);
++    UInt32 base = ((2 | (posSlot & 1)) << footerBits);
++    tempPrices[i] = RcTree_ReverseGetPrice(p->posEncoders + base - posSlot - 1, footerBits, i - base, p->ProbPrices);
++  }
++
++  for (lenToPosState = 0; lenToPosState < kNumLenToPosStates; lenToPosState++)
++  {
++    UInt32 posSlot;
++    const CLzmaProb *encoder = p->posSlotEncoder[lenToPosState];
++    UInt32 *posSlotPrices = p->posSlotPrices[lenToPosState];
++    for (posSlot = 0; posSlot < p->distTableSize; posSlot++)
++      posSlotPrices[posSlot] = RcTree_GetPrice(encoder, kNumPosSlotBits, posSlot, p->ProbPrices);
++    for (posSlot = kEndPosModelIndex; posSlot < p->distTableSize; posSlot++)
++      posSlotPrices[posSlot] += ((((posSlot >> 1) - 1) - kNumAlignBits) << kNumBitPriceShiftBits);
++
++    {
++      UInt32 *distancesPrices = p->distancesPrices[lenToPosState];
++      UInt32 i;
++      for (i = 0; i < kStartPosModelIndex; i++)
++        distancesPrices[i] = posSlotPrices[i];
++      for (; i < kNumFullDistances; i++)
++        distancesPrices[i] = posSlotPrices[GetPosSlot1(i)] + tempPrices[i];
++    }
++  }
++  p->matchPriceCount = 0;
++}
++
++void LzmaEnc_Construct(CLzmaEnc *p)
++{
++  RangeEnc_Construct(&p->rc);
++  MatchFinder_Construct(&p->matchFinderBase);
++  #ifndef _7ZIP_ST
++  MatchFinderMt_Construct(&p->matchFinderMt);
++  p->matchFinderMt.MatchFinder = &p->matchFinderBase;
++  #endif
++
++  {
++    CLzmaEncProps props;
++    LzmaEncProps_Init(&props);
++    LzmaEnc_SetProps(p, &props);
++  }
++
++  #ifndef LZMA_LOG_BSR
++  LzmaEnc_FastPosInit(p->g_FastPos);
++  #endif
++
++  LzmaEnc_InitPriceTables(p->ProbPrices);
++  p->litProbs = 0;
++  p->saveState.litProbs = 0;
++}
++
++CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc)
++{
++  void *p;
++  p = alloc->Alloc(alloc, sizeof(CLzmaEnc));
++  if (p != 0)
++    LzmaEnc_Construct((CLzmaEnc *)p);
++  return p;
++}
++
++void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc)
++{
++  alloc->Free(alloc, p->litProbs);
++  alloc->Free(alloc, p->saveState.litProbs);
++  p->litProbs = 0;
++  p->saveState.litProbs = 0;
++}
++
++void LzmaEnc_Destruct(CLzmaEnc *p, ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  #ifndef _7ZIP_ST
++  MatchFinderMt_Destruct(&p->matchFinderMt, allocBig);
++  #endif
++  MatchFinder_Free(&p->matchFinderBase, allocBig);
++  LzmaEnc_FreeLits(p, alloc);
++  RangeEnc_Free(&p->rc, alloc);
++}
++
++void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  LzmaEnc_Destruct((CLzmaEnc *)p, alloc, allocBig);
++  alloc->Free(alloc, p);
++}
++
++static SRes LzmaEnc_CodeOneBlock(CLzmaEnc *p, Bool useLimits, UInt32 maxPackSize, UInt32 maxUnpackSize)
++{
++  UInt32 nowPos32, startPos32;
++  if (p->needInit)
++  {
++    p->matchFinder.Init(p->matchFinderObj);
++    p->needInit = 0;
++  }
++
++  if (p->finished)
++    return p->result;
++  RINOK(CheckErrors(p));
++
++  nowPos32 = (UInt32)p->nowPos64;
++  startPos32 = nowPos32;
++
++  if (p->nowPos64 == 0)
++  {
++    UInt32 numPairs;
++    Byte curByte;
++    if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
++      return Flush(p, nowPos32);
++    ReadMatchDistances(p, &numPairs);
++    RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][0], 0);
++    p->state = kLiteralNextStates[p->state];
++    curByte = p->matchFinder.GetIndexByte(p->matchFinderObj, 0 - p->additionalOffset);
++    LitEnc_Encode(&p->rc, p->litProbs, curByte);
++    p->additionalOffset--;
++    nowPos32++;
++  }
++
++  if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) != 0)
++  for (;;)
++  {
++    UInt32 pos, len, posState;
++
++    if (p->fastMode)
++      len = GetOptimumFast(p, &pos);
++    else
++      len = GetOptimum(p, nowPos32, &pos);
++
++    #ifdef SHOW_STAT2
++    printf("\n pos = %4X,   len = %d   pos = %d", nowPos32, len, pos);
++    #endif
++
++    posState = nowPos32 & p->pbMask;
++    if (len == 1 && pos == (UInt32)-1)
++    {
++      Byte curByte;
++      CLzmaProb *probs;
++      const Byte *data;
++
++      RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 0);
++      data = p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
++      curByte = *data;
++      probs = LIT_PROBS(nowPos32, *(data - 1));
++      if (IsCharState(p->state))
++        LitEnc_Encode(&p->rc, probs, curByte);
++      else
++        LitEnc_EncodeMatched(&p->rc, probs, curByte, *(data - p->reps[0] - 1));
++      p->state = kLiteralNextStates[p->state];
++    }
++    else
++    {
++      RangeEnc_EncodeBit(&p->rc, &p->isMatch[p->state][posState], 1);
++      if (pos < LZMA_NUM_REPS)
++      {
++        RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 1);
++        if (pos == 0)
++        {
++          RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 0);
++          RangeEnc_EncodeBit(&p->rc, &p->isRep0Long[p->state][posState], ((len == 1) ? 0 : 1));
++        }
++        else
++        {
++          UInt32 distance = p->reps[pos];
++          RangeEnc_EncodeBit(&p->rc, &p->isRepG0[p->state], 1);
++          if (pos == 1)
++            RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 0);
++          else
++          {
++            RangeEnc_EncodeBit(&p->rc, &p->isRepG1[p->state], 1);
++            RangeEnc_EncodeBit(&p->rc, &p->isRepG2[p->state], pos - 2);
++            if (pos == 3)
++              p->reps[3] = p->reps[2];
++            p->reps[2] = p->reps[1];
++          }
++          p->reps[1] = p->reps[0];
++          p->reps[0] = distance;
++        }
++        if (len == 1)
++          p->state = kShortRepNextStates[p->state];
++        else
++        {
++          LenEnc_Encode2(&p->repLenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices);
++          p->state = kRepNextStates[p->state];
++        }
++      }
++      else
++      {
++        UInt32 posSlot;
++        RangeEnc_EncodeBit(&p->rc, &p->isRep[p->state], 0);
++        p->state = kMatchNextStates[p->state];
++        LenEnc_Encode2(&p->lenEnc, &p->rc, len - LZMA_MATCH_LEN_MIN, posState, !p->fastMode, p->ProbPrices);
++        pos -= LZMA_NUM_REPS;
++        GetPosSlot(pos, posSlot);
++        RcTree_Encode(&p->rc, p->posSlotEncoder[GetLenToPosState(len)], kNumPosSlotBits, posSlot);
++        
++        if (posSlot >= kStartPosModelIndex)
++        {
++          UInt32 footerBits = ((posSlot >> 1) - 1);
++          UInt32 base = ((2 | (posSlot & 1)) << footerBits);
++          UInt32 posReduced = pos - base;
++
++          if (posSlot < kEndPosModelIndex)
++            RcTree_ReverseEncode(&p->rc, p->posEncoders + base - posSlot - 1, footerBits, posReduced);
++          else
++          {
++            RangeEnc_EncodeDirectBits(&p->rc, posReduced >> kNumAlignBits, footerBits - kNumAlignBits);
++            RcTree_ReverseEncode(&p->rc, p->posAlignEncoder, kNumAlignBits, posReduced & kAlignMask);
++            p->alignPriceCount++;
++          }
++        }
++        p->reps[3] = p->reps[2];
++        p->reps[2] = p->reps[1];
++        p->reps[1] = p->reps[0];
++        p->reps[0] = pos;
++        p->matchPriceCount++;
++      }
++    }
++    p->additionalOffset -= len;
++    nowPos32 += len;
++    if (p->additionalOffset == 0)
++    {
++      UInt32 processed;
++      if (!p->fastMode)
++      {
++        if (p->matchPriceCount >= (1 << 7))
++          FillDistancesPrices(p);
++        if (p->alignPriceCount >= kAlignTableSize)
++          FillAlignPrices(p);
++      }
++      if (p->matchFinder.GetNumAvailableBytes(p->matchFinderObj) == 0)
++        break;
++      processed = nowPos32 - startPos32;
++      if (useLimits)
++      {
++        if (processed + kNumOpts + 300 >= maxUnpackSize ||
++            RangeEnc_GetProcessed(&p->rc) + kNumOpts * 2 >= maxPackSize)
++          break;
++      }
++      else if (processed >= (1 << 15))
++      {
++        p->nowPos64 += nowPos32 - startPos32;
++        return CheckErrors(p);
++      }
++    }
++  }
++  p->nowPos64 += nowPos32 - startPos32;
++  return Flush(p, nowPos32);
++}
++
++#define kBigHashDicLimit ((UInt32)1 << 24)
++
++static SRes LzmaEnc_Alloc(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  UInt32 beforeSize = kNumOpts;
++  Bool btMode;
++  if (!RangeEnc_Alloc(&p->rc, alloc))
++    return SZ_ERROR_MEM;
++  btMode = (p->matchFinderBase.btMode != 0);
++  #ifndef _7ZIP_ST
++  p->mtMode = (p->multiThread && !p->fastMode && btMode);
++  #endif
++
++  {
++    unsigned lclp = p->lc + p->lp;
++    if (p->litProbs == 0 || p->saveState.litProbs == 0 || p->lclp != lclp)
++    {
++      LzmaEnc_FreeLits(p, alloc);
++      p->litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb));
++      p->saveState.litProbs = (CLzmaProb *)alloc->Alloc(alloc, (0x300 << lclp) * sizeof(CLzmaProb));
++      if (p->litProbs == 0 || p->saveState.litProbs == 0)
++      {
++        LzmaEnc_FreeLits(p, alloc);
++        return SZ_ERROR_MEM;
++      }
++      p->lclp = lclp;
++    }
++  }
++
++  p->matchFinderBase.bigHash = (p->dictSize > kBigHashDicLimit);
++
++  if (beforeSize + p->dictSize < keepWindowSize)
++    beforeSize = keepWindowSize - p->dictSize;
++
++  #ifndef _7ZIP_ST
++  if (p->mtMode)
++  {
++    RINOK(MatchFinderMt_Create(&p->matchFinderMt, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig));
++    p->matchFinderObj = &p->matchFinderMt;
++    MatchFinderMt_CreateVTable(&p->matchFinderMt, &p->matchFinder);
++  }
++  else
++  #endif
++  {
++    if (!MatchFinder_Create(&p->matchFinderBase, p->dictSize, beforeSize, p->numFastBytes, LZMA_MATCH_LEN_MAX, allocBig))
++      return SZ_ERROR_MEM;
++    p->matchFinderObj = &p->matchFinderBase;
++    MatchFinder_CreateVTable(&p->matchFinderBase, &p->matchFinder);
++  }
++  return SZ_OK;
++}
++
++void LzmaEnc_Init(CLzmaEnc *p)
++{
++  UInt32 i;
++  p->state = 0;
++  for (i = 0 ; i < LZMA_NUM_REPS; i++)
++    p->reps[i] = 0;
++
++  RangeEnc_Init(&p->rc);
++
++
++  for (i = 0; i < kNumStates; i++)
++  {
++    UInt32 j;
++    for (j = 0; j < LZMA_NUM_PB_STATES_MAX; j++)
++    {
++      p->isMatch[i][j] = kProbInitValue;
++      p->isRep0Long[i][j] = kProbInitValue;
++    }
++    p->isRep[i] = kProbInitValue;
++    p->isRepG0[i] = kProbInitValue;
++    p->isRepG1[i] = kProbInitValue;
++    p->isRepG2[i] = kProbInitValue;
++  }
++
++  {
++    UInt32 num = 0x300 << (p->lp + p->lc);
++    for (i = 0; i < num; i++)
++      p->litProbs[i] = kProbInitValue;
++  }
++
++  {
++    for (i = 0; i < kNumLenToPosStates; i++)
++    {
++      CLzmaProb *probs = p->posSlotEncoder[i];
++      UInt32 j;
++      for (j = 0; j < (1 << kNumPosSlotBits); j++)
++        probs[j] = kProbInitValue;
++    }
++  }
++  {
++    for (i = 0; i < kNumFullDistances - kEndPosModelIndex; i++)
++      p->posEncoders[i] = kProbInitValue;
++  }
++
++  LenEnc_Init(&p->lenEnc.p);
++  LenEnc_Init(&p->repLenEnc.p);
++
++  for (i = 0; i < (1 << kNumAlignBits); i++)
++    p->posAlignEncoder[i] = kProbInitValue;
++
++  p->optimumEndIndex = 0;
++  p->optimumCurrentIndex = 0;
++  p->additionalOffset = 0;
++
++  p->pbMask = (1 << p->pb) - 1;
++  p->lpMask = (1 << p->lp) - 1;
++}
++
++void LzmaEnc_InitPrices(CLzmaEnc *p)
++{
++  if (!p->fastMode)
++  {
++    FillDistancesPrices(p);
++    FillAlignPrices(p);
++  }
++
++  p->lenEnc.tableSize =
++  p->repLenEnc.tableSize =
++      p->numFastBytes + 1 - LZMA_MATCH_LEN_MIN;
++  LenPriceEnc_UpdateTables(&p->lenEnc, 1 << p->pb, p->ProbPrices);
++  LenPriceEnc_UpdateTables(&p->repLenEnc, 1 << p->pb, p->ProbPrices);
++}
++
++static SRes LzmaEnc_AllocAndInit(CLzmaEnc *p, UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  UInt32 i;
++  for (i = 0; i < (UInt32)kDicLogSizeMaxCompress; i++)
++    if (p->dictSize <= ((UInt32)1 << i))
++      break;
++  p->distTableSize = i * 2;
++
++  p->finished = False;
++  p->result = SZ_OK;
++  RINOK(LzmaEnc_Alloc(p, keepWindowSize, alloc, allocBig));
++  LzmaEnc_Init(p);
++  LzmaEnc_InitPrices(p);
++  p->nowPos64 = 0;
++  return SZ_OK;
++}
++
++static SRes LzmaEnc_Prepare(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream,
++    ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  p->matchFinderBase.stream = inStream;
++  p->needInit = 1;
++  p->rc.outStream = outStream;
++  return LzmaEnc_AllocAndInit(p, 0, alloc, allocBig);
++}
++
++SRes LzmaEnc_PrepareForLzma2(CLzmaEncHandle pp,
++    ISeqInStream *inStream, UInt32 keepWindowSize,
++    ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  p->matchFinderBase.stream = inStream;
++  p->needInit = 1;
++  return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
++}
++
++static void LzmaEnc_SetInputBuf(CLzmaEnc *p, const Byte *src, SizeT srcLen)
++{
++  p->matchFinderBase.directInput = 1;
++  p->matchFinderBase.bufferBase = (Byte *)src;
++  p->matchFinderBase.directInputRem = srcLen;
++}
++
++SRes LzmaEnc_MemPrepare(CLzmaEncHandle pp, const Byte *src, SizeT srcLen,
++    UInt32 keepWindowSize, ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  LzmaEnc_SetInputBuf(p, src, srcLen);
++  p->needInit = 1;
++
++  return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig);
++}
++
++void LzmaEnc_Finish(CLzmaEncHandle pp)
++{
++  #ifndef _7ZIP_ST
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  if (p->mtMode)
++    MatchFinderMt_ReleaseStream(&p->matchFinderMt);
++  #else
++  pp = pp;
++  #endif
++}
++
++typedef struct
++{
++  ISeqOutStream funcTable;
++  Byte *data;
++  SizeT rem;
++  Bool overflow;
++} CSeqOutStreamBuf;
++
++static size_t MyWrite(void *pp, const void *data, size_t size)
++{
++  CSeqOutStreamBuf *p = (CSeqOutStreamBuf *)pp;
++  if (p->rem < size)
++  {
++    size = p->rem;
++    p->overflow = True;
++  }
++  memcpy(p->data, data, size);
++  p->rem -= size;
++  p->data += size;
++  return size;
++}
++
++
++UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp)
++{
++  const CLzmaEnc *p = (CLzmaEnc *)pp;
++  return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj);
++}
++
++const Byte *LzmaEnc_GetCurBuf(CLzmaEncHandle pp)
++{
++  const CLzmaEnc *p = (CLzmaEnc *)pp;
++  return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset;
++}
++
++SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
++    Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize)
++{
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  UInt64 nowPos64;
++  SRes res;
++  CSeqOutStreamBuf outStream;
++
++  outStream.funcTable.Write = MyWrite;
++  outStream.data = dest;
++  outStream.rem = *destLen;
++  outStream.overflow = False;
++
++  p->writeEndMark = False;
++  p->finished = False;
++  p->result = SZ_OK;
++
++  if (reInit)
++    LzmaEnc_Init(p);
++  LzmaEnc_InitPrices(p);
++  nowPos64 = p->nowPos64;
++  RangeEnc_Init(&p->rc);
++  p->rc.outStream = &outStream.funcTable;
++
++  res = LzmaEnc_CodeOneBlock(p, True, desiredPackSize, *unpackSize);
++  
++  *unpackSize = (UInt32)(p->nowPos64 - nowPos64);
++  *destLen -= outStream.rem;
++  if (outStream.overflow)
++    return SZ_ERROR_OUTPUT_EOF;
++
++  return res;
++}
++
++static SRes LzmaEnc_Encode2(CLzmaEnc *p, ICompressProgress *progress)
++{
++  SRes res = SZ_OK;
++
++  #ifndef _7ZIP_ST
++  Byte allocaDummy[0x300];
++  int i = 0;
++  for (i = 0; i < 16; i++)
++    allocaDummy[i] = (Byte)i;
++  #endif
++
++  for (;;)
++  {
++    res = LzmaEnc_CodeOneBlock(p, False, 0, 0);
++    if (res != SZ_OK || p->finished != 0)
++      break;
++    if (progress != 0)
++    {
++      res = progress->Progress(progress, p->nowPos64, RangeEnc_GetProcessed(&p->rc));
++      if (res != SZ_OK)
++      {
++        res = SZ_ERROR_PROGRESS;
++        break;
++      }
++    }
++  }
++  LzmaEnc_Finish(p);
++  return res;
++}
++
++SRes LzmaEnc_Encode(CLzmaEncHandle pp, ISeqOutStream *outStream, ISeqInStream *inStream, ICompressProgress *progress,
++    ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  RINOK(LzmaEnc_Prepare(pp, outStream, inStream, alloc, allocBig));
++  return LzmaEnc_Encode2((CLzmaEnc *)pp, progress);
++}
++
++SRes LzmaEnc_WriteProperties(CLzmaEncHandle pp, Byte *props, SizeT *size)
++{
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++  int i;
++  UInt32 dictSize = p->dictSize;
++  if (*size < LZMA_PROPS_SIZE)
++    return SZ_ERROR_PARAM;
++  *size = LZMA_PROPS_SIZE;
++  props[0] = (Byte)((p->pb * 5 + p->lp) * 9 + p->lc);
++
++  for (i = 11; i <= 30; i++)
++  {
++    if (dictSize <= ((UInt32)2 << i))
++    {
++      dictSize = (2 << i);
++      break;
++    }
++    if (dictSize <= ((UInt32)3 << i))
++    {
++      dictSize = (3 << i);
++      break;
++    }
++  }
++
++  for (i = 0; i < 4; i++)
++    props[1 + i] = (Byte)(dictSize >> (8 * i));
++  return SZ_OK;
++}
++
++SRes LzmaEnc_MemEncode(CLzmaEncHandle pp, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
++    int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  SRes res;
++  CLzmaEnc *p = (CLzmaEnc *)pp;
++
++  CSeqOutStreamBuf outStream;
++
++  LzmaEnc_SetInputBuf(p, src, srcLen);
++
++  outStream.funcTable.Write = MyWrite;
++  outStream.data = dest;
++  outStream.rem = *destLen;
++  outStream.overflow = False;
++
++  p->writeEndMark = writeEndMark;
++
++  p->rc.outStream = &outStream.funcTable;
++  res = LzmaEnc_MemPrepare(pp, src, srcLen, 0, alloc, allocBig);
++  if (res == SZ_OK)
++    res = LzmaEnc_Encode2(p, progress);
++
++  *destLen -= outStream.rem;
++  if (outStream.overflow)
++    return SZ_ERROR_OUTPUT_EOF;
++  return res;
++}
++
++SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
++    const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
++    ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig)
++{
++  CLzmaEnc *p = (CLzmaEnc *)LzmaEnc_Create(alloc);
++  SRes res;
++  if (p == 0)
++    return SZ_ERROR_MEM;
++
++  res = LzmaEnc_SetProps(p, props);
++  if (res == SZ_OK)
++  {
++    res = LzmaEnc_WriteProperties(p, propsEncoded, propsSize);
++    if (res == SZ_OK)
++      res = LzmaEnc_MemEncode(p, dest, destLen, src, srcLen,
++          writeEndMark, progress, alloc, allocBig);
++  }
++
++  LzmaEnc_Destroy(p, alloc, allocBig);
++  return res;
++}
+--- /dev/null
++++ b/lib/lzma/Makefile
+@@ -0,0 +1,7 @@
++lzma_compress-objs := LzFind.o LzmaEnc.o
++lzma_decompress-objs := LzmaDec.o
++
++obj-$(CONFIG_LZMA_COMPRESS) += lzma_compress.o
++obj-$(CONFIG_LZMA_DECOMPRESS) += lzma_decompress.o
++
++EXTRA_CFLAGS += -Iinclude/linux -Iinclude/linux/lzma -include types.h
diff --git a/target/linux/generic/patches-2.6.38/009-decompress_unlzo_fix.patch b/target/linux/generic/patches-2.6.38/009-decompress_unlzo_fix.patch
new file mode 100644
index 0000000000..ee7c118ef0
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/009-decompress_unlzo_fix.patch
@@ -0,0 +1,23 @@
+--- /dev/null
++++ b/include/linux/decompress/unlzo_mm.h
+@@ -0,0 +1,10 @@
++#ifndef UNLZO_MM_H
++#define UNLZO_MM_H
++
++#ifdef STATIC
++#define INIT
++#else
++#define INIT __init
++#endif
++
++#endif
+--- a/lib/decompress_unlzo.c
++++ b/lib/decompress_unlzo.c
+@@ -38,6 +38,7 @@
+ 
+ #include <linux/types.h>
+ #include <linux/lzo.h>
++#include <linux/decompress/unlzo_mm.h>
+ #include <linux/decompress/mm.h>
+ 
+ #include <linux/compiler.h>
diff --git a/target/linux/generic/patches-2.6.38/011-mips_boot.patch b/target/linux/generic/patches-2.6.38/011-mips_boot.patch
new file mode 100644
index 0000000000..c2a043acde
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/011-mips_boot.patch
@@ -0,0 +1,11 @@
+--- a/arch/mips/kernel/head.S
++++ b/arch/mips/kernel/head.S
+@@ -121,6 +121,8 @@
+ #endif
+ 	.endm
+ 
++	j kernel_entry
++	nop
+ #ifndef CONFIG_NO_EXCEPT_FILL
+ 	/*
+ 	 * Reserved space for exception handlers.
diff --git a/target/linux/generic/patches-2.6.38/012-extra_optimization.patch b/target/linux/generic/patches-2.6.38/012-extra_optimization.patch
new file mode 100644
index 0000000000..4984fad29b
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/012-extra_optimization.patch
@@ -0,0 +1,21 @@
+--- a/Makefile
++++ b/Makefile
+@@ -541,7 +541,7 @@ all: vmlinux
+ ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+ KBUILD_CFLAGS	+= -Os
+ else
+-KBUILD_CFLAGS	+= -O2
++KBUILD_CFLAGS	+= -O2 -fno-reorder-blocks -fno-tree-ch
+ endif
+ 
+ include $(srctree)/arch/$(SRCARCH)/Makefile
+@@ -596,6 +596,9 @@ endif
+ NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
+ CHECKFLAGS     += $(NOSTDINC_FLAGS)
+ 
++# improve gcc optimization
++CFLAGS += $(call cc-option,-funit-at-a-time,)
++
+ # warn about C99 declaration after statement
+ KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
+ 
diff --git a/target/linux/generic/patches-2.6.38/013-gcc4_inline_fix.patch b/target/linux/generic/patches-2.6.38/013-gcc4_inline_fix.patch
new file mode 100644
index 0000000000..77ab405439
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/013-gcc4_inline_fix.patch
@@ -0,0 +1,11 @@
+--- a/arch/mips/include/asm/system.h
++++ b/arch/mips/include/asm/system.h
+@@ -194,7 +194,7 @@ extern __u64 __xchg_u64_unsupported_on_3
+ #define __xchg_u64 __xchg_u64_unsupported_on_32bit_kernels
+ #endif
+ 
+-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
++static __always_inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+ {
+ 	switch (size) {
+ 	case 4:
diff --git a/target/linux/generic/patches-2.6.38/014-cfi_show_amd_extended_table_version.patch b/target/linux/generic/patches-2.6.38/014-cfi_show_amd_extended_table_version.patch
new file mode 100644
index 0000000000..2369a19fac
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/014-cfi_show_amd_extended_table_version.patch
@@ -0,0 +1,15 @@
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -462,9 +462,9 @@ struct mtd_info *cfi_cmdset_0002(struct
+ 
+ 			/*
+ 			 * Valid primary extension versions are: 1.0, 1.1, 1.2, 1.3, 1.4
+-			 * see: http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19 
+-			 *      http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf
+-			 *      http://www.spansion.com/Support/Datasheets/s29ws-p_00_a12_e.pdf
++ 			 * see: Spec 1.3 http://cs.ozerki.net/zap/pub/axim-x5/docs/cfi_r20.pdf, page 19 
++ 			 *               http://www.spansion.com/Support/AppNotes/cfi_100_20011201.pdf
++			 *      Spec 1.4 http://www.spansion.com/Support/AppNotes/CFI_Spec_AN_03.pdf, page 9
+ 			 */
+ 			if (extp->MajorVersion != '1' ||
+ 			    (extp->MajorVersion == '1' && (extp->MinorVersion < '0' || extp->MinorVersion > '4'))) {
diff --git a/target/linux/generic/patches-2.6.38/021-mips_image_cmdline_hack.patch b/target/linux/generic/patches-2.6.38/021-mips_image_cmdline_hack.patch
new file mode 100644
index 0000000000..eb330b10b9
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/021-mips_image_cmdline_hack.patch
@@ -0,0 +1,28 @@
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -904,6 +904,10 @@ config SYNC_R4K
+ config MIPS_MACHINE
+ 	def_bool n
+ 
++config IMAGE_CMDLINE_HACK
++	bool "OpenWrt specific image command line hack"
++	default n
++
+ config NO_IOPORT
+ 	def_bool n
+ 
+--- a/arch/mips/kernel/head.S
++++ b/arch/mips/kernel/head.S
+@@ -143,6 +143,12 @@ FEXPORT(__kernel_entry)
+ 	j	kernel_entry
+ #endif
+ 
++#ifdef CONFIG_IMAGE_CMDLINE_HACK
++	.ascii	"CMDLINE:"
++EXPORT(__image_cmdline)
++	.fill	0x400
++#endif /* CONFIG_IMAGE_CMDLINE_HACK */
++
+ 	__REF
+ 
+ NESTED(kernel_entry, 16, sp)			# kernel entry point
diff --git a/target/linux/generic/patches-2.6.38/022-mips_use_generic_thread_info_allocator.patch b/target/linux/generic/patches-2.6.38/022-mips_use_generic_thread_info_allocator.patch
new file mode 100644
index 0000000000..915bb5f92c
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/022-mips_use_generic_thread_info_allocator.patch
@@ -0,0 +1,18 @@
+--- a/arch/mips/include/asm/thread_info.h
++++ b/arch/mips/include/asm/thread_info.h
+@@ -85,6 +85,7 @@ register struct thread_info *__current_t
+ 
+ #define STACK_WARN	(THREAD_SIZE / 8)
+ 
++#if 0
+ #define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
+ 
+ #ifdef CONFIG_DEBUG_STACK_USAGE
+@@ -94,6 +95,7 @@ register struct thread_info *__current_t
+ #endif
+ 
+ #define free_thread_info(info) kfree(info)
++#endif
+ 
+ #endif /* !__ASSEMBLY__ */
+ 
diff --git a/target/linux/generic/patches-2.6.38/023-mips-fix-kexec.patch b/target/linux/generic/patches-2.6.38/023-mips-fix-kexec.patch
new file mode 100644
index 0000000000..e6928dde91
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/023-mips-fix-kexec.patch
@@ -0,0 +1,11 @@
+--- a/arch/mips/kernel/machine_kexec.c
++++ b/arch/mips/kernel/machine_kexec.c
+@@ -52,7 +52,7 @@ machine_kexec(struct kimage *image)
+ 	reboot_code_buffer =
+ 	  (unsigned long)page_address(image->control_code_page);
+ 
+-	kexec_start_address = image->start;
++	kexec_start_address = (unsigned long) phys_to_virt(image->start);
+ 	kexec_indirection_page =
+ 		(unsigned long) phys_to_virt(image->head & PAGE_MASK);
+ 
diff --git a/target/linux/generic/patches-2.6.38/025-mips_disable_fpu.patch b/target/linux/generic/patches-2.6.38/025-mips_disable_fpu.patch
new file mode 100644
index 0000000000..faf0f79a69
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/025-mips_disable_fpu.patch
@@ -0,0 +1,160 @@
+MIPS: allow disabling the kernel FPU emulator
+
+This patch allows turning off the in-kernel Algorithmics
+FPU emulator support, which allows one to save a couple of
+precious blocks on an embedded system.
+
+Signed-off-by: Florian Fainelli <florian@openwrt.org>
+--
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -889,6 +889,17 @@ config I8259
+ config MIPS_BONITO64
+ 	bool
+ 
++config MIPS_FPU_EMU
++	bool "Enable FPU emulation"
++	default y
++	help
++	   This option allows building a kernel with or without the Algorithmics
++	   FPU emulator enabled. Turning off this option results in a kernel which
++	   does not catch floating operations exceptions. Make sure that your toolchain
++	   is configured to enable software floating point emulation in that case.
++		
++	   If unsure say Y here.
++
+ config MIPS_MSC
+ 	bool
+ 
+--- a/arch/mips/math-emu/Makefile
++++ b/arch/mips/math-emu/Makefile
+@@ -2,11 +2,13 @@
+ # Makefile for the Linux/MIPS kernel FPU emulation.
+ #
+ 
+-obj-y	:= cp1emu.o ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
++obj-y	:=	kernel_linkage.o dsemul.o cp1emu.o
++
++obj-$(CONFIG_MIPS_FPU_EMU)	+= ieee754m.o ieee754d.o ieee754dp.o ieee754sp.o ieee754.o \
+ 	   ieee754xcpt.o dp_frexp.o dp_modf.o dp_div.o dp_mul.o dp_sub.o \
+ 	   dp_add.o dp_fsp.o dp_cmp.o dp_logb.o dp_scalb.o dp_simple.o \
+ 	   dp_tint.o dp_fint.o dp_tlong.o dp_flong.o sp_frexp.o sp_modf.o \
+ 	   sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_logb.o \
+ 	   sp_scalb.o sp_simple.o sp_tint.o sp_fint.o sp_tlong.o sp_flong.o \
+-	   dp_sqrt.o sp_sqrt.o kernel_linkage.o dsemul.o
++	   dp_sqrt.o sp_sqrt.o
+ 
+--- a/arch/mips/math-emu/cp1emu.c
++++ b/arch/mips/math-emu/cp1emu.c
+@@ -58,7 +58,11 @@
+ #define __mips 4
+ 
+ /* Function which emulates a floating point instruction. */
++#ifdef CONFIG_DEBUG_FS
++DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
++#endif
+ 
++#ifdef CONFIG_MIPS_FPU_EMU
+ static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *,
+ 	mips_instruction);
+ 
+@@ -69,10 +73,6 @@ static int fpux_emu(struct pt_regs *,
+ 
+ /* Further private data for which no space exists in mips_fpu_struct */
+ 
+-#ifdef CONFIG_DEBUG_FS
+-DEFINE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
+-#endif
+-
+ /* Control registers */
+ 
+ #define FPCREG_RID	0	/* $0  = revision id */
+@@ -1361,7 +1361,6 @@ int fpu_emulator_cop1Handler(struct pt_r
+ 
+ 	return sig;
+ }
+-
+ #ifdef CONFIG_DEBUG_FS
+ 
+ static int fpuemu_stat_get(void *data, u64 *val)
+@@ -1410,4 +1409,11 @@ static int __init debugfs_fpuemu(void)
+ 	return 0;
+ }
+ __initcall(debugfs_fpuemu);
+-#endif
++#endif /* CONFIG_DEBUGFS */
++#else
++int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
++        int has_fpu)
++{
++	return 0;
++}
++#endif /* CONFIG_MIPS_FPU_EMU */
+--- a/arch/mips/math-emu/dsemul.c
++++ b/arch/mips/math-emu/dsemul.c
+@@ -109,6 +109,7 @@ int mips_dsemul(struct pt_regs *regs, mi
+ 	return SIGILL;		/* force out of emulation loop */
+ }
+ 
++#ifdef CONFIG_MIPS_FPU_EMU
+ int do_dsemulret(struct pt_regs *xcp)
+ {
+ 	struct emuframe __user *fr;
+@@ -165,3 +166,9 @@ int do_dsemulret(struct pt_regs *xcp)
+ 
+ 	return 1;
+ }
++#else
++int do_dsemulret(struct pt_regs *xcp)
++{
++	return 0;
++}
++#endif /* CONFIG_MIPS_FPU_EMU */
+--- a/arch/mips/math-emu/kernel_linkage.c
++++ b/arch/mips/math-emu/kernel_linkage.c
+@@ -29,6 +29,7 @@
+ 
+ #define SIGNALLING_NAN 0x7ff800007ff80000LL
+ 
++#ifdef CONFIG_MIPS_FPU_EMU
+ void fpu_emulator_init_fpu(void)
+ {
+ 	static int first = 1;
+@@ -112,4 +113,36 @@ int fpu_emulator_restore_context32(struc
+ 
+ 	return err;
+ }
+-#endif
++#endif	/* CONFIG_64BIT */
++#else
++
++void fpu_emulator_init_fpu(void)
++{
++	printk(KERN_INFO "FPU emulator disabled, make sure your toolchain"
++		"was compiled with software floating point support (soft-float)\n");
++	return;
++}
++
++int fpu_emulator_save_context(struct sigcontext __user *sc)
++{
++	return 0;
++}
++
++int fpu_emulator_restore_context(struct sigcontext __user *sc)
++{
++	return 0;
++}
++
++int fpu_emulator_save_context32(struct sigcontext32 __user *sc)
++{
++	return 0;
++}
++
++int fpu_emulator_restore_context32(struct sigcontext32 __user *sc)
++{
++	return 0;
++}
++
++#ifdef CONFIG_64BIT
++#endif	/* CONFIG_64BIT */
++#endif /* CONFIG_MIPS_FPU_EMU */
diff --git a/target/linux/generic/patches-2.6.38/027-mips_module_reloc.patch b/target/linux/generic/patches-2.6.38/027-mips_module_reloc.patch
new file mode 100644
index 0000000000..5513962cb2
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/027-mips_module_reloc.patch
@@ -0,0 +1,370 @@
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -90,8 +90,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
+ cflags-y			+= -G 0 -mno-abicalls -fno-pic -pipe
+ cflags-y			+= -msoft-float
+ LDFLAGS_vmlinux			+= -G 0 -static -n -nostdlib
+-KBUILD_AFLAGS_MODULE		+= -mlong-calls
+-KBUILD_CFLAGS_MODULE		+= -mlong-calls
++KBUILD_AFLAGS_MODULE		+= -mno-long-calls
++KBUILD_CFLAGS_MODULE		+= -mno-long-calls
+ 
+ cflags-y += -ffreestanding
+ 
+--- a/arch/mips/include/asm/module.h
++++ b/arch/mips/include/asm/module.h
+@@ -9,6 +9,11 @@ struct mod_arch_specific {
+ 	struct list_head dbe_list;
+ 	const struct exception_table_entry *dbe_start;
+ 	const struct exception_table_entry *dbe_end;
++
++	void *phys_plt_tbl;
++	void *virt_plt_tbl;
++	unsigned int phys_plt_offset;
++	unsigned int virt_plt_offset;
+ };
+ 
+ typedef uint8_t Elf64_Byte;		/* Type for a 8-bit quantity.  */
+--- a/arch/mips/kernel/module.c
++++ b/arch/mips/kernel/module.c
+@@ -45,6 +45,117 @@ static struct mips_hi16 *mips_hi16_list;
+ static LIST_HEAD(dbe_list);
+ static DEFINE_SPINLOCK(dbe_lock);
+ 
++/*
++ * Get the potential max trampolines size required of the init and
++ * non-init sections. Only used if we cannot find enough contiguous
++ * physically mapped memory to put the module into.
++ */
++static unsigned int
++get_plt_size(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
++             const char *secstrings, unsigned int symindex, bool is_init)
++{
++	unsigned long ret = 0;
++	unsigned int i, j;
++	Elf_Sym *syms;
++
++	/* Everything marked ALLOC (this includes the exported symbols) */
++	for (i = 1; i < hdr->e_shnum; ++i) {
++		unsigned int info = sechdrs[i].sh_info;
++
++		if (sechdrs[i].sh_type != SHT_REL
++		    && sechdrs[i].sh_type != SHT_RELA)
++			continue;
++
++		/* Not a valid relocation section? */
++		if (info >= hdr->e_shnum)
++			continue;
++
++		/* Don't bother with non-allocated sections */
++		if (!(sechdrs[info].sh_flags & SHF_ALLOC))
++			continue;
++
++		/* If it's called *.init*, and we're not init, we're
++                   not interested */
++		if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0)
++		    != is_init)
++			continue;
++
++		syms = (Elf_Sym *) sechdrs[symindex].sh_addr;
++		if (sechdrs[i].sh_type == SHT_REL) {
++			Elf_Mips_Rel *rel = (void *) sechdrs[i].sh_addr;
++			unsigned int size = sechdrs[i].sh_size / sizeof(*rel);
++
++			for (j = 0; j < size; ++j) {
++				Elf_Sym *sym;
++
++				if (ELF_MIPS_R_TYPE(rel[j]) != R_MIPS_26)
++					continue;
++
++				sym = syms + ELF_MIPS_R_SYM(rel[j]);
++				if (!is_init && sym->st_shndx != SHN_UNDEF)
++					continue;
++
++				ret += 4 * sizeof(int);
++			}
++		} else {
++			Elf_Mips_Rela *rela = (void *) sechdrs[i].sh_addr;
++			unsigned int size = sechdrs[i].sh_size / sizeof(*rela);
++
++			for (j = 0; j < size; ++j) {
++				Elf_Sym *sym;
++
++				if (ELF_MIPS_R_TYPE(rela[j]) != R_MIPS_26)
++					continue;
++
++				sym = syms + ELF_MIPS_R_SYM(rela[j]);
++				if (!is_init && sym->st_shndx != SHN_UNDEF)
++					continue;
++
++				ret += 4 * sizeof(int);
++			}
++		}
++	}
++
++	return ret;
++}
++
++#ifndef MODULE_START
++static void *alloc_phys(unsigned long size)
++{
++	unsigned order;
++	struct page *page;
++	struct page *p;
++
++	size = PAGE_ALIGN(size);
++	order = get_order(size);
++
++	page = alloc_pages(GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN |
++			__GFP_THISNODE, order);
++	if (!page)
++		return NULL;
++
++	split_page(page, order);
++
++	for (p = page + (size >> PAGE_SHIFT); p < page + (1 << order); ++p)
++		__free_page(p);
++
++	return page_address(page);
++}
++#endif
++
++static void free_phys(void *ptr, unsigned long size)
++{
++	struct page *page;
++	struct page *end;
++
++	page = virt_to_page(ptr);
++	end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT);
++
++	for (; page < end; ++page)
++		__free_page(page);
++}
++
++
+ void *module_alloc(unsigned long size)
+ {
+ #ifdef MODULE_START
+@@ -52,21 +163,99 @@ void *module_alloc(unsigned long size)
+ 				GFP_KERNEL, PAGE_KERNEL, -1,
+ 				__builtin_return_address(0));
+ #else
++	void *ptr;
++
+ 	if (size == 0)
+ 		return NULL;
+-	return vmalloc(size);
++
++	ptr = alloc_phys(size);
++
++	/* If we failed to allocate physically contiguous memory,
++	 * fall back to regular vmalloc. The module loader code will
++	 * create jump tables to handle long jumps */
++	if (!ptr)
++		return vmalloc(size);
++
++	return ptr;
++#endif
++}
++
++static inline bool is_phys_addr(void *ptr)
++{
++#ifdef CONFIG_64BIT
++	return (KSEGX((unsigned long)ptr) == CKSEG0);
++#else
++	return (KSEGX(ptr) == KSEG0);
+ #endif
+ }
+ 
+ /* Free memory returned from module_alloc */
+ void module_free(struct module *mod, void *module_region)
+ {
+-	vfree(module_region);
++	if (is_phys_addr(module_region)) {
++		if (mod->module_init == module_region)
++			free_phys(module_region, mod->init_size);
++		else if (mod->module_core == module_region)
++			free_phys(module_region, mod->core_size);
++		else
++			BUG();
++	} else {
++		vfree(module_region);
++	}
++}
++
++static void *__module_alloc(int size, bool phys)
++{
++	void *ptr;
++
++	if (phys)
++		ptr = kmalloc(size, GFP_KERNEL);
++	else
++		ptr = vmalloc(size);
++	return ptr;
++}
++
++static void __module_free(void *ptr)
++{
++	if (is_phys_addr(ptr))
++		kfree(ptr);
++	else
++		vfree(ptr);
+ }
+ 
+ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
+ 			      char *secstrings, struct module *mod)
+ {
++	unsigned int symindex = 0;
++	unsigned int core_size, init_size;
++	int i;
++
++	for (i = 1; i < hdr->e_shnum; i++)
++		if (sechdrs[i].sh_type == SHT_SYMTAB)
++			symindex = i;
++
++	core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false);
++	init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true);
++
++	mod->arch.phys_plt_offset = 0;
++	mod->arch.virt_plt_offset = 0;
++	mod->arch.phys_plt_tbl = NULL;
++	mod->arch.virt_plt_tbl = NULL;
++
++	if ((core_size + init_size) == 0)
++		return 0;
++
++	mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1);
++	if (!mod->arch.phys_plt_tbl)
++		return -ENOMEM;
++
++	mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0);
++	if (!mod->arch.virt_plt_tbl) {
++		__module_free(mod->arch.phys_plt_tbl);
++		mod->arch.phys_plt_tbl = NULL;
++		return -ENOMEM;
++	}
++
+ 	return 0;
+ }
+ 
+@@ -89,28 +278,36 @@ static int apply_r_mips_32_rela(struct m
+ 	return 0;
+ }
+ 
+-static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
++static Elf_Addr add_plt_entry_to(unsigned *plt_offset,
++				 void *start, Elf_Addr v)
+ {
+-	if (v % 4) {
+-		pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
+-		       me->name);
+-		return -ENOEXEC;
+-	}
++	unsigned *tramp = start + *plt_offset;
++	*plt_offset += 4 * sizeof(int);
+ 
+-	if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
+-		printk(KERN_ERR
+-		       "module %s: relocation overflow\n",
+-		       me->name);
+-		return -ENOEXEC;
+-	}
++	/* adjust carry for addiu */
++	if (v & 0x00008000)
++		v += 0x10000;
+ 
+-	*location = (*location & ~0x03ffffff) |
+-	            ((*location + (v >> 2)) & 0x03ffffff);
++	tramp[0] = 0x3c190000 | (v >> 16);      /* lui t9, hi16 */
++	tramp[1] = 0x27390000 | (v & 0xffff);   /* addiu t9, t9, lo16 */
++	tramp[2] = 0x03200008;                  /* jr t9 */
++	tramp[3] = 0x00000000;                  /* nop */
+ 
+-	return 0;
++	return (Elf_Addr) tramp;
+ }
+ 
+-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
++static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
++{
++	if (is_phys_addr(location))
++		return add_plt_entry_to(&me->arch.phys_plt_offset,
++				me->arch.phys_plt_tbl, v);
++	else
++		return add_plt_entry_to(&me->arch.virt_plt_offset,
++				me->arch.virt_plt_tbl, v);
++
++}
++
++static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v)
+ {
+ 	if (v % 4) {
+ 		pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n",
+@@ -119,17 +316,31 @@ static int apply_r_mips_26_rela(struct m
+ 	}
+ 
+ 	if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
+-		printk(KERN_ERR
++	    v = add_plt_entry(me, location, v + (ofs << 2));
++		if (!v) {
++			printk(KERN_ERR
+ 		       "module %s: relocation overflow\n",
+ 		       me->name);
+-		return -ENOEXEC;
++			return -ENOEXEC;
++		}
++		ofs = 0;
+ 	}
+ 
+-	*location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff);
++	*location = (*location & ~0x03ffffff) | ((ofs + (v >> 2)) & 0x03ffffff);
+ 
+ 	return 0;
+ }
+ 
++static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
++{
++	return set_r_mips_26(me, location, *location & 0x03ffffff, v);
++}
++
++static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
++{
++	return set_r_mips_26(me, location, 0, v);
++}
++
+ static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
+ {
+ 	struct mips_hi16 *n;
+@@ -397,11 +608,32 @@ int module_finalize(const Elf_Ehdr *hdr,
+ 		list_add(&me->arch.dbe_list, &dbe_list);
+ 		spin_unlock_irq(&dbe_lock);
+ 	}
++
++	/* Get rid of the fixup trampoline if we're running the module
++	 * from physically mapped address space */
++	if (me->arch.phys_plt_offset == 0) {
++		__module_free(me->arch.phys_plt_tbl);
++		me->arch.phys_plt_tbl = NULL;
++	}
++	if (me->arch.virt_plt_offset == 0) {
++		__module_free(me->arch.virt_plt_tbl);
++		me->arch.virt_plt_tbl = NULL;
++	}
++
+ 	return 0;
+ }
+ 
+ void module_arch_cleanup(struct module *mod)
+ {
++	if (mod->arch.phys_plt_tbl) {
++		__module_free(mod->arch.phys_plt_tbl);
++		mod->arch.phys_plt_tbl = NULL;
++	}
++	if (mod->arch.virt_plt_tbl) {
++		__module_free(mod->arch.virt_plt_tbl);
++		mod->arch.virt_plt_tbl = NULL;
++	}
++
+ 	spin_lock_irq(&dbe_lock);
+ 	list_del(&mod->arch.dbe_list);
+ 	spin_unlock_irq(&dbe_lock);
diff --git a/target/linux/generic/patches-2.6.38/028-module_exports.patch b/target/linux/generic/patches-2.6.38/028-module_exports.patch
new file mode 100644
index 0000000000..ec07fb2128
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/028-module_exports.patch
@@ -0,0 +1,119 @@
+--- a/include/asm-generic/vmlinux.lds.h
++++ b/include/asm-generic/vmlinux.lds.h
+@@ -52,6 +52,27 @@
+ #define LOAD_OFFSET 0
+ #endif
+ 
++#ifndef SYMTAB_KEEP_STR
++#define SYMTAB_KEEP_STR *(__ksymtab_strings.*)
++#define SYMTAB_DISCARD_STR
++#else
++#define SYMTAB_DISCARD_STR *(__ksymtab_strings.*)
++#endif
++
++#ifndef SYMTAB_KEEP
++#define SYMTAB_KEEP *(__ksymtab.*)
++#define SYMTAB_DISCARD
++#else
++#define SYMTAB_DISCARD *(__ksymtab.*)
++#endif
++
++#ifndef SYMTAB_KEEP_GPL
++#define SYMTAB_KEEP_GPL *(__ksymtab_gpl.*)
++#define SYMTAB_DISCARD_GPL
++#else
++#define SYMTAB_DISCARD_GPL *(__ksymtab_gpl.*)
++#endif
++
+ #ifndef SYMBOL_PREFIX
+ #define VMLINUX_SYMBOL(sym) sym
+ #else
+@@ -276,35 +297,35 @@
+ 	/* Kernel symbol table: Normal symbols */			\
+ 	__ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {		\
+ 		VMLINUX_SYMBOL(__start___ksymtab) = .;			\
+-		*(__ksymtab)						\
++		SYMTAB_KEEP						\
+ 		VMLINUX_SYMBOL(__stop___ksymtab) = .;			\
+ 	}								\
+ 									\
+ 	/* Kernel symbol table: GPL-only symbols */			\
+ 	__ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {	\
+ 		VMLINUX_SYMBOL(__start___ksymtab_gpl) = .;		\
+-		*(__ksymtab_gpl)					\
++		SYMTAB_KEEP_GPL						\
+ 		VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .;		\
+ 	}								\
+ 									\
+ 	/* Kernel symbol table: Normal unused symbols */		\
+ 	__ksymtab_unused  : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) {	\
+ 		VMLINUX_SYMBOL(__start___ksymtab_unused) = .;		\
+-		*(__ksymtab_unused)					\
++		*(__ksymtab_unused.*)					\
+ 		VMLINUX_SYMBOL(__stop___ksymtab_unused) = .;		\
+ 	}								\
+ 									\
+ 	/* Kernel symbol table: GPL-only unused symbols */		\
+ 	__ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
+ 		VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .;	\
+-		*(__ksymtab_unused_gpl)					\
++		*(__ksymtab_unused_gpl.*)				\
+ 		VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .;	\
+ 	}								\
+ 									\
+ 	/* Kernel symbol table: GPL-future-only symbols */		\
+ 	__ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
+ 		VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .;	\
+-		*(__ksymtab_gpl_future)					\
++		*(__ksymtab_gpl_future.*)				\
+ 		VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .;	\
+ 	}								\
+ 									\
+@@ -345,7 +366,7 @@
+ 									\
+ 	/* Kernel symbol table: strings */				\
+         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {	\
+-		*(__ksymtab_strings)					\
++		SYMTAB_KEEP_STR						\
+ 	}								\
+ 									\
+ 	/* __*init sections */						\
+@@ -670,6 +691,9 @@
+ 	EXIT_TEXT							\
+ 	EXIT_DATA							\
+ 	EXIT_CALL							\
++	SYMTAB_DISCARD							\
++	SYMTAB_DISCARD_GPL						\
++	SYMTAB_DISCARD_STR						\
+ 	*(.discard)							\
+ 	*(.discard.*)							\
+ 	}
+--- a/include/linux/module.h
++++ b/include/linux/module.h
+@@ -202,16 +202,24 @@ struct module_use {
+ #define __CRC_SYMBOL(sym, sec)
+ #endif
+ 
++#ifdef MODULE
++#define __EXPORT_SUFFIX(sym)
++#else
++#define __EXPORT_SUFFIX(sym) "." #sym
++#endif
++
+ /* For every exported symbol, place a struct in the __ksymtab section */
+ #define __EXPORT_SYMBOL(sym, sec)				\
+ 	extern typeof(sym) sym;					\
+ 	__CRC_SYMBOL(sym, sec)					\
+ 	static const char __kstrtab_##sym[]			\
+-	__attribute__((section("__ksymtab_strings"), aligned(1))) \
++	__attribute__((section("__ksymtab_strings"		\
++	  __EXPORT_SUFFIX(sym)), aligned(1)))			\
+ 	= MODULE_SYMBOL_PREFIX #sym;                    	\
+ 	static const struct kernel_symbol __ksymtab_##sym	\
+ 	__used							\
+-	__attribute__((section("__ksymtab" sec), unused))	\
++	__attribute__((section("__ksymtab" sec			\
++	  __EXPORT_SUFFIX(sym)), unused))			\
+ 	= { (unsigned long)&sym, __kstrtab_##sym }
+ 
+ #define EXPORT_SYMBOL(sym)					\
diff --git a/target/linux/generic/patches-2.6.38/029-arm_module_unresolved_weak_sym.patch b/target/linux/generic/patches-2.6.38/029-arm_module_unresolved_weak_sym.patch
new file mode 100644
index 0000000000..385522f058
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/029-arm_module_unresolved_weak_sym.patch
@@ -0,0 +1,13 @@
+--- a/arch/arm/kernel/module.c
++++ b/arch/arm/kernel/module.c
+@@ -97,6 +97,10 @@ apply_relocate(Elf32_Shdr *sechdrs, cons
+ 			return -ENOEXEC;
+ 		}
+ 
++		if ((IS_ERR_VALUE(sym->st_value) || !sym->st_value) &&
++		    ELF_ST_BIND(sym->st_info) == STB_WEAK)
++			continue;
++
+ 		loc = dstsec->sh_addr + rel->r_offset;
+ 
+ 		switch (ELF32_R_TYPE(rel->r_info)) {
diff --git a/target/linux/generic/patches-2.6.38/030-pci_disable_common_quirks.patch b/target/linux/generic/patches-2.6.38/030-pci_disable_common_quirks.patch
new file mode 100644
index 0000000000..e5d647d189
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/030-pci_disable_common_quirks.patch
@@ -0,0 +1,43 @@
+--- a/drivers/pci/Kconfig
++++ b/drivers/pci/Kconfig
+@@ -62,6 +62,12 @@ config XEN_PCIDEV_FE_DEBUG
+ 
+ 	  When in doubt, say N.
+ 
++config PCI_DISABLE_COMMON_QUIRKS
++	bool "PCI disable common quirks"
++	depends on PCI
++	help
++	  If you don't know what to do here, say N.
++
+ config HT_IRQ
+ 	bool "Interrupts on hypertransport devices"
+ 	default y
+--- a/drivers/pci/quirks.c
++++ b/drivers/pci/quirks.c
+@@ -104,6 +104,7 @@ static void __devinit quirk_mmio_always_
+ }
+ DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_mmio_always_on);
+ 
++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
+ /* The Mellanox Tavor device gives false positive parity errors
+  * Mark this device with a broken_parity_status, to allow
+  * PCI scanning code to "skip" this now blacklisted device.
+@@ -1944,7 +1945,9 @@ static void __devinit fixup_rev1_53c810(
+ 	}
+ }
+ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
++#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
+ 
++#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS
+ /* Enable 1k I/O space granularity on the Intel P64H2 */
+ static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
+ {
+@@ -2669,6 +2672,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_I
+ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1518, quirk_i82576_sriov);
+ 
+ #endif	/* CONFIG_PCI_IOV */
++#endif /* !CONFIG_PCI_DISABLE_COMMON_QUIRKS */
+ 
+ /* Allow manual resource allocation for PCI hotplug bridges
+  * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
diff --git a/target/linux/generic/patches-2.6.38/040-arm-update-mach-types.patch b/target/linux/generic/patches-2.6.38/040-arm-update-mach-types.patch
new file mode 100644
index 0000000000..dc6510a1fd
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/040-arm-update-mach-types.patch
@@ -0,0 +1,307 @@
+--- a/arch/arm/tools/mach-types
++++ b/arch/arm/tools/mach-types
+@@ -12,7 +12,7 @@
+ #
+ #   http://www.arm.linux.org.uk/developer/machines/?action=new
+ #
+-# Last update: Sun Dec 12 23:24:27 2010
++# Last update: Wed Dec 29 19:22:02 2010
+ #
+ # machine_is_xxx	CONFIG_xxxx		MACH_TYPE_xxx		number
+ #
+@@ -1319,7 +1319,7 @@ mistral			MACH_MISTRAL		MISTRAL			1315
+ msm			MACH_MSM		MSM			1316
+ ct5910			MACH_CT5910		CT5910			1317
+ ct5912			MACH_CT5912		CT5912			1318
+-hynet_ine		MACH_HYNET_INE		HYNET_INE		1319
++argonst_mp		MACH_HYNET_INE		HYNET_INE		1319
+ hynet_app		MACH_HYNET_APP		HYNET_APP		1320
+ msm7200			MACH_MSM7200		MSM7200			1321
+ msm7600			MACH_MSM7600		MSM7600			1322
+@@ -1777,7 +1777,7 @@ wdg002			MACH_WDG002		WDG002			1785
+ sg560adsl		MACH_SG560ADSL		SG560ADSL		1786
+ nextio_n2800_ica	MACH_NEXTIO_N2800_ICA	NEXTIO_N2800_ICA	1787
+ dove_db			MACH_DOVE_DB		DOVE_DB			1788
+-marvell_newdb		MACH_MARVELL_NEWDB	MARVELL_NEWDB		1789
++dove_avng		MACH_MARVELL_NEWDB	MARVELL_NEWDB		1789
+ vandihud		MACH_VANDIHUD		VANDIHUD		1790
+ magx_e8			MACH_MAGX_E8		MAGX_E8			1791
+ magx_z6			MACH_MAGX_Z6		MAGX_Z6			1792
+@@ -1877,7 +1877,7 @@ ued			MACH_UED		UED			1885
+ esiblade		MACH_ESIBLADE		ESIBLADE		1886
+ eye02			MACH_EYE02		EYE02			1887
+ imx27kbd		MACH_IMX27KBD		IMX27KBD		1888
+-sst61vc010_fpga		MACH_SST61VC010_FPGA	SST61VC010_FPGA		1889
++p87_fpga		MACH_SST61VC010_FPGA	SST61VC010_FPGA		1889
+ kixvp435		MACH_KIXVP435		KIXVP435		1890
+ kixnp435		MACH_KIXNP435		KIXNP435		1891
+ africa			MACH_AFRICA		AFRICA			1892
+@@ -2308,7 +2308,7 @@ ecac2378		MACH_ECAC2378		ECAC2378		2319
+ tazkiosk		MACH_TAZKIOSK		TAZKIOSK		2320
+ whiterabbit_mch		MACH_WHITERABBIT_MCH	WHITERABBIT_MCH		2321
+ sbox9263		MACH_SBOX9263		SBOX9263		2322
+-oreo			MACH_OREO		OREO			2323
++oreo_camera		MACH_OREO		OREO			2323
+ smdk6442		MACH_SMDK6442		SMDK6442		2324
+ openrd_base		MACH_OPENRD_BASE	OPENRD_BASE		2325
+ incredible		MACH_INCREDIBLE		INCREDIBLE		2326
+@@ -2374,7 +2374,7 @@ sch_m490		MACH_SCH_M490		SCH_M490		2386
+ rbl01			MACH_RBL01		RBL01			2387
+ omnifi			MACH_OMNIFI		OMNIFI			2388
+ otavalo			MACH_OTAVALO		OTAVALO			2389
+-sienna			MACH_SIENNA		SIENNA			2390
++siena			MACH_SIENNA		SIENNA			2390
+ htc_excalibur_s620	MACH_HTC_EXCALIBUR_S620	HTC_EXCALIBUR_S620	2391
+ htc_opal		MACH_HTC_OPAL		HTC_OPAL		2392
+ touchbook		MACH_TOUCHBOOK		TOUCHBOOK		2393
+@@ -2446,7 +2446,7 @@ siogentoo1		MACH_SIOGENTOO1		SIOGENTOO1
+ siogentoo2		MACH_SIOGENTOO2		SIOGENTOO2		2459
+ sm3k			MACH_SM3K		SM3K			2460
+ acer_tempo_f900		MACH_ACER_TEMPO_F900	ACER_TEMPO_F900		2461
+-sst61vc010_dev		MACH_SST61VC010_DEV	SST61VC010_DEV		2462
++p87_dev			MACH_SST61VC010_DEV	SST61VC010_DEV		2462
+ glittertind		MACH_GLITTERTIND	GLITTERTIND		2463
+ omap_zoom3		MACH_OMAP_ZOOM3		OMAP_ZOOM3		2464
+ omap_3630sdp		MACH_OMAP_3630SDP	OMAP_3630SDP		2465
+@@ -2498,7 +2498,7 @@ hiram			MACH_HIRAM		HIRAM			2510
+ phy3250			MACH_PHY3250		PHY3250			2511
+ ea3250			MACH_EA3250		EA3250			2512
+ fdi3250			MACH_FDI3250		FDI3250			2513
+-whitestone		MACH_WHITESTONE		WHITESTONE		2514
++htcwhitestone		MACH_WHITESTONE		WHITESTONE		2514
+ at91sam9263nit		MACH_AT91SAM9263NIT	AT91SAM9263NIT		2515
+ ccmx51			MACH_CCMX51		CCMX51			2516
+ ccmx51js		MACH_CCMX51JS		CCMX51JS		2517
+@@ -2561,7 +2561,7 @@ magnolia2		MACH_MAGNOLIA2		MAGNOLIA2		25
+ emxx			MACH_EMXX		EMXX			2574
+ outlaw			MACH_OUTLAW		OUTLAW			2575
+ riot_bei2		MACH_RIOT_BEI2		RIOT_BEI2		2576
+-riot_vox		MACH_RIOT_VOX		RIOT_VOX		2577
++riot_gx2		MACH_RIOT_VOX		RIOT_VOX		2577
+ riot_x37		MACH_RIOT_X37		RIOT_X37		2578
+ mega25mx		MACH_MEGA25MX		MEGA25MX		2579
+ benzina2		MACH_BENZINA2		BENZINA2		2580
+@@ -2582,7 +2582,7 @@ omap3_bulldog		MACH_OMAP3_BULLDOG	OMAP3_
+ pca101			MACH_PCA101		PCA101			2595
+ buzzc			MACH_BUZZC		BUZZC			2596
+ sasie2			MACH_SASIE2		SASIE2			2597
+-davinci_cio		MACH_DAVINCI_CIO	DAVINCI_CIO		2598
++davinci_dm6467_cio	MACH_DAVINCI_CIO	DAVINCI_CIO		2598
+ smartmeter_dl		MACH_SMARTMETER_DL	SMARTMETER_DL		2599
+ wzl6410			MACH_WZL6410		WZL6410			2600
+ wzl6410m		MACH_WZL6410M		WZL6410M		2601
+@@ -2591,7 +2591,7 @@ wzl6410i		MACH_WZL6410I		WZL6410I		2603
+ spacecom1		MACH_SPACECOM1		SPACECOM1		2604
+ pingu920		MACH_PINGU920		PINGU920		2605
+ bravoc			MACH_BRAVOC		BRAVOC			2606
+-cybo2440		MACH_CYBO2440		CYBO2440		2607
++mydev			MACH_CYBO2440		CYBO2440		2607
+ vdssw			MACH_VDSSW		VDSSW			2608
+ romulus			MACH_ROMULUS		ROMULUS			2609
+ omap_magic		MACH_OMAP_MAGIC		OMAP_MAGIC		2610
+@@ -2683,7 +2683,7 @@ lkevm			MACH_LKEVM		LKEVM			2695
+ mw6410			MACH_MW6410		MW6410			2696
+ terastation_wxl		MACH_TERASTATION_WXL	TERASTATION_WXL		2697
+ cpu8000e		MACH_CPU8000E		CPU8000E		2698
+-catania			MACH_CATANIA		CATANIA			2699
++catania_s		MACH_CATANIA		CATANIA			2699
+ tokyo			MACH_TOKYO		TOKYO			2700
+ msm7201a_surf		MACH_MSM7201A_SURF	MSM7201A_SURF		2701
+ msm7201a_ffa		MACH_MSM7201A_FFA	MSM7201A_FFA		2702
+@@ -2750,7 +2750,7 @@ h6053			MACH_H6053		H6053			2762
+ smint01			MACH_SMINT01		SMINT01			2763
+ prtlvt2			MACH_PRTLVT2		PRTLVT2			2764
+ ap420			MACH_AP420		AP420			2765
+-htcshift		MACH_HTCSHIFT		HTCSHIFT		2766
++htcclio			MACH_HTCSHIFT		HTCSHIFT		2766
+ davinci_dm365_fc	MACH_DAVINCI_DM365_FC	DAVINCI_DM365_FC	2767
+ msm8x55_surf		MACH_MSM8X55_SURF	MSM8X55_SURF		2768
+ msm8x55_ffa		MACH_MSM8X55_FFA	MSM8X55_FFA		2769
+@@ -2761,7 +2761,7 @@ oreo_controller		MACH_OREO_CONTROLLER	OR
+ kopin_models		MACH_KOPIN_MODELS	KOPIN_MODELS		2774
+ ttc_vision2		MACH_TTC_VISION2	TTC_VISION2		2775
+ cns3420vb		MACH_CNS3420VB		CNS3420VB		2776
+-lpc2			MACH_LPC2		LPC2			2777
++lpc_evo			MACH_LPC2		LPC2			2777
+ olympus			MACH_OLYMPUS		OLYMPUS			2778
+ vortex			MACH_VORTEX		VORTEX			2779
+ s5pc200			MACH_S5PC200		S5PC200			2780
+@@ -2788,7 +2788,7 @@ ti8168evm		MACH_TI8168EVM		TI8168EVM		28
+ neocoreomap		MACH_NEOCOREOMAP	NEOCOREOMAP		2801
+ withings_wbp		MACH_WITHINGS_WBP	WITHINGS_WBP		2802
+ dbps			MACH_DBPS		DBPS			2803
+-sbc9261			MACH_SBC9261		SBC9261			2804
++at91sam9261		MACH_SBC9261		SBC9261			2804
+ pcbfp0001		MACH_PCBFP0001		PCBFP0001		2805
+ speedy			MACH_SPEEDY		SPEEDY			2806
+ chrysaor		MACH_CHRYSAOR		CHRYSAOR		2807
+@@ -2812,7 +2812,7 @@ p565			MACH_P565		P565			2824
+ acer_a4			MACH_ACER_A4		ACER_A4			2825
+ davinci_dm368_bip	MACH_DAVINCI_DM368_BIP	DAVINCI_DM368_BIP	2826
+ eshare			MACH_ESHARE		ESHARE			2827
+-hw_omapl138_europa	MACH_HW_OMAPL138_EUROPA	HW_OMAPL138_EUROPA	2828
++omapl138_europa		MACH_HW_OMAPL138_EUROPA	HW_OMAPL138_EUROPA	2828
+ wlbargn			MACH_WLBARGN		WLBARGN			2829
+ bm170			MACH_BM170		BM170			2830
+ netspace_mini_v2	MACH_NETSPACE_MINI_V2	NETSPACE_MINI_V2	2831
+@@ -2879,7 +2879,7 @@ davinci_picto		MACH_DAVINCI_PICTO	DAVINC
+ mecha			MACH_MECHA		MECHA			2892
+ bubba3			MACH_BUBBA3		BUBBA3			2893
+ pupitre			MACH_PUPITRE		PUPITRE			2894
+-tegra_harmony		MACH_TEGRA_HARMONY	TEGRA_HARMONY		2895
++tegra_unused		MACH_TEGRA_HARMONY	TEGRA_HARMONY		2895
+ tegra_vogue		MACH_TEGRA_VOGUE	TEGRA_VOGUE		2896
+ tegra_e1165		MACH_TEGRA_E1165	TEGRA_E1165		2897
+ simplenet		MACH_SIMPLENET		SIMPLENET		2898
+@@ -2896,6 +2896,7 @@ e10			MACH_E10		E10			2908
+ app3k_robin		MACH_APP3K_ROBIN	APP3K_ROBIN		2909
+ pov15hd			MACH_POV15HD		POV15HD			2910
+ stella			MACH_STELLA		STELLA			2911
++htc_iolite		MACH_MACH_HTC_IOLITE	MACH_HTC_IOLITE		2912
+ linkstation_lschl	MACH_LINKSTATION_LSCHL	LINKSTATION_LSCHL	2913
+ netwalker		MACH_NETWALKER		NETWALKER		2914
+ acsx106			MACH_ACSX106		ACSX106			2915
+@@ -2959,6 +2960,7 @@ davinci_dm355_mmm	MACH_DAVINCI_DM355_MMM
+ pc9260_v2		MACH_PC9260_V2		PC9260_V2		2973
+ ptx7545			MACH_PTX7545		PTX7545			2974
+ tm_efdc			MACH_TM_EFDC		TM_EFDC			2975
++remove_me		MACH_WALDO1		WALDO1			2976
+ omap3_waldo1		MACH_OMAP3_WALDO1	OMAP3_WALDO1		2977
+ flyer			MACH_FLYER		FLYER			2978
+ tornado3240		MACH_TORNADO3240	TORNADO3240		2979
+@@ -2969,7 +2971,7 @@ netspace_lite_v2	MACH_NETSPACE_LITE_V2	N
+ ssc			MACH_SSC		SSC			2984
+ premierwave_en		MACH_PREMIERWAVE_EN	PREMIERWAVE_EN		2985
+ wasabi			MACH_WASABI		WASABI			2986
+-vivow			MACH_VIVOW		VIVOW			2987
++vivo_w			MACH_VIVOW		VIVOW			2987
+ mx50_rdp		MACH_MX50_RDP		MX50_RDP		2988
+ universal_c210		MACH_UNIVERSAL_C210	UNIVERSAL_C210		2989
+ real6410		MACH_REAL6410		REAL6410		2990
+@@ -2987,7 +2989,7 @@ pxwnas_500_1000		MACH_PXWNAS_500_1000	PX
+ ea20			MACH_EA20		EA20			3002
+ awm2			MACH_AWM2		AWM2			3003
+ ti8148evm		MACH_TI8148EVM		TI8148EVM		3004
+-tegra_seaboard		MACH_TEGRA_SEABOARD	TEGRA_SEABOARD		3005
++seaboard		MACH_SEABOARD		SEABOARD		3005
+ linkstation_chlv2	MACH_LINKSTATION_CHLV2	LINKSTATION_CHLV2	3006
+ tera_pro2_rack		MACH_TERA_PRO2_RACK	TERA_PRO2_RACK		3007
+ rubys			MACH_RUBYS		RUBYS			3008
+@@ -3017,12 +3019,12 @@ remus			MACH_REMUS		REMUS			3031
+ at91cap7xdk		MACH_AT91CAP7XDK	AT91CAP7XDK		3032
+ at91cap7stk		MACH_AT91CAP7STK	AT91CAP7STK		3033
+ kt_sbc_sam9_1		MACH_KT_SBC_SAM9_1	KT_SBC_SAM9_1		3034
+-oratisrouter		MACH_ORATISROUTER	ORATISROUTER		3035
++at91sam9263router	MACH_ORATISROUTER	ORATISROUTER		3035
+ armada_xp_db		MACH_ARMADA_XP_DB	ARMADA_XP_DB		3036
+ spdm			MACH_SPDM		SPDM			3037
+ gtib			MACH_GTIB		GTIB			3038
+ dgm3240			MACH_DGM3240		DGM3240			3039
+-atlas_i_lpe		MACH_ATLAS_I_LPE	ATLAS_I_LPE		3040
++iv_atlas_i_lpe		MACH_ATLAS_I_LPE	ATLAS_I_LPE		3040
+ htcmega			MACH_HTCMEGA		HTCMEGA			3041
+ tricorder		MACH_TRICORDER		TRICORDER		3042
+ tx28			MACH_TX28		TX28			3043
+@@ -3038,6 +3040,7 @@ s5pc110_crespo		MACH_S5PC110_CRESPO	S5PC
+ controltek9g20		MACH_CONTROLTEK9G20	CONTROLTEK9G20		3053
+ tin307			MACH_TIN307		TIN307			3054
+ tin510			MACH_TIN510		TIN510			3055
++ep3505			MACH_EP3517		EP3517			3056
+ bluecheese		MACH_BLUECHEESE		BLUECHEESE		3057
+ tem3x30			MACH_TEM3X30		TEM3X30			3058
+ harvest_desoto		MACH_HARVEST_DESOTO	HARVEST_DESOTO		3059
+@@ -3062,7 +3065,7 @@ clod			MACH_CLOD		CLOD			3077
+ rump			MACH_RUMP		RUMP			3078
+ tenderloin		MACH_TENDERLOIN		TENDERLOIN		3079
+ shortloin		MACH_SHORTLOIN		SHORTLOIN		3080
+-crespo			MACH_CRESPO		CRESPO			3081
++roml1			MACH_CRESPO		CRESPO			3081
+ antares			MACH_ANTARES		ANTARES			3082
+ wb40n			MACH_WB40N		WB40N			3083
+ herring			MACH_HERRING		HERRING			3084
+@@ -3109,9 +3112,9 @@ msm8x60_fluid		MACH_MSM8X60_FLUID	MSM8X6
+ smartqv5		MACH_SMARTQV5		SMARTQV5		3125
+ smartqv3		MACH_SMARTQV3		SMARTQV3		3126
+ smartqv7		MACH_SMARTQV7		SMARTQV7		3127
+-paz00			MACH_PAZ00		PAZ00			3128
++tegra_paz00		MACH_PAZ00		PAZ00			3128
+ acmenetusfoxg20		MACH_ACMENETUSFOXG20	ACMENETUSFOXG20		3129
+-htcwillow		MACH_HTCWILLOW		HTCWILLOW		3130
++htc_willow		MACH_HTCWILLOW		HTCWILLOW		3130
+ fwbd_0404		MACH_FWBD_0404		FWBD_0404		3131
+ hdgu			MACH_HDGU		HDGU			3132
+ pyramid			MACH_PYRAMID		PYRAMID			3133
+@@ -3162,7 +3165,7 @@ b5500			MACH_B5500		B5500			3177
+ s5500			MACH_S5500		S5500			3178
+ icon			MACH_ICON		ICON			3179
+ elephant		MACH_ELEPHANT		ELEPHANT		3180
+-msm8x60_fusion		MACH_MSM8X60_FUSION	MSM8X60_FUSION		3181
++msm8x60_charm_surf	MACH_MSM8X60_FUSION	MSM8X60_FUSION		3181
+ shooter			MACH_SHOOTER		SHOOTER			3182
+ spade_lte		MACH_SPADE_LTE		SPADE_LTE		3183
+ philhwani		MACH_PHILHWANI		PHILHWANI		3184
+@@ -3174,13 +3177,13 @@ ag5evm			MACH_AG5EVM		AG5EVM			3189
+ sc575plc		MACH_SC575PLC		SC575PLC		3190
+ sc575hmi		MACH_SC575IPC		SC575IPC		3191
+ omap3_tdm3730		MACH_OMAP3_TDM3730	OMAP3_TDM3730		3192
+-g7			MACH_G7			G7			3193
++rover_g7		MACH_G7			G7			3193
+ top9000_eval		MACH_TOP9000_EVAL	TOP9000_EVAL		3194
+ top9000_su		MACH_TOP9000_SU		TOP9000_SU		3195
+ utm300			MACH_UTM300		UTM300			3196
+ tsunagi			MACH_TSUNAGI		TSUNAGI			3197
+ ts75xx			MACH_TS75XX		TS75XX			3198
+-msm8x60_fusn_ffa	MACH_MSM8X60_FUSN_FFA	MSM8X60_FUSN_FFA	3199
++msm8x60_charm_ffa	MACH_MSM8X60_FUSN_FFA	MSM8X60_FUSN_FFA	3199
+ ts47xx			MACH_TS47XX		TS47XX			3200
+ da850_k5		MACH_DA850_K5		DA850_K5		3201
+ ax502			MACH_AX502		AX502			3202
+@@ -3190,9 +3193,10 @@ synergy			MACH_SYNERGY		SYNERGY			3205
+ ics_if_voip		MACH_ICS_IF_VOIP	ICS_IF_VOIP		3206
+ wlf_cragg_6410		MACH_WLF_CRAGG_6410	WLF_CRAGG_6410		3207
+ punica			MACH_PUNICA		PUNICA			3208
+-sbc_nt250		MACH_SBC_NT250		SBC_NT250		3209
++trimslice		MACH_SBC_NT250		SBC_NT250		3209
+ mx27_wmultra		MACH_MX27_WMULTRA	MX27_WMULTRA		3210
+ mackerel		MACH_MACKEREL		MACKEREL		3211
++pvd_imx27		MACH_MACH_PVD_IMX27	MACH_PVD_IMX27		3212
+ fa9x27			MACH_FA9X27		FA9X27			3213
+ ns2816tb		MACH_NS2816TB		NS2816TB		3214
+ ns2816_ntpad		MACH_NS2816_NTPAD	NS2816_NTPAD		3215
+@@ -3219,3 +3223,36 @@ pivicc			MACH_PIVICC		PIVICC			3235
+ pcm048			MACH_PCM048		PCM048			3236
+ dds			MACH_DDS		DDS			3237
+ chalten_xa1		MACH_CHALTEN_XA1	CHALTEN_XA1		3238
++ts48xx			MACH_TS48XX		TS48XX			3239
++tonga2_tfttimer		MACH_TONGA2_TFTTIMER	TONGA2_TFTTIMER		3240
++whistler		MACH_WHISTLER		WHISTLER		3241
++asl_phoenix		MACH_ASL_PHOENIX	ASL_PHOENIX		3242
++at91sam9263otlite	MACH_AT91SAM9263OTLITE	AT91SAM9263OTLITE	3243
++ddplug			MACH_DDPLUG		DDPLUG			3244
++d2plug			MACH_D2PLUG		D2PLUG			3245
++kzm9d			MACH_KZM9D		KZM9D			3246
++verdi_lte		MACH_VERDI_LTE		VERDI_LTE		3247
++nanozoom		MACH_NANOZOOM		NANOZOOM		3248
++dm3730_som_lv		MACH_DM3730_SOM_LV	DM3730_SOM_LV		3249
++dm3730_torpedo		MACH_DM3730_TORPEDO	DM3730_TORPEDO		3250
++anchovy			MACH_ANCHOVY		ANCHOVY			3251
++linux			MACH_LINUX		LINUX			3252
++re2rev20		MACH_RE2REV20		RE2REV20		3253
++re2rev21		MACH_RE2REV21		RE2REV21		3254
++cns21xx			MACH_CNS21XX		CNS21XX			3255
++rider			MACH_RIDER		RIDER			3257
++nsk330			MACH_NSK330		NSK330			3258
++cns2133evb		MACH_CNS2133EVB		CNS2133EVB		3259
++z3_816x_mod		MACH_Z3_816X_MOD	Z3_816X_MOD		3260
++z3_814x_mod		MACH_Z3_814X_MOD	Z3_814X_MOD		3261
++beect			MACH_BEECT		BEECT			3262
++dma_thunderbug		MACH_DMA_THUNDERBUG	DMA_THUNDERBUG		3263
++omn_at91sam9g20		MACH_OMN_AT91SAM9G20	OMN_AT91SAM9G20		3264
++mx25_e2s_uc		MACH_MX25_E2S_UC	MX25_E2S_UC		3265
++mione			MACH_MIONE		MIONE			3266
++top9000_rcu		MACH_TOP9000_RCU	TOP9000_RCU		3267
++top9000_bsl		MACH_TOP9000_BSL	TOP9000_BSL		3268
++kingdom			MACH_KINGDOM		KINGDOM			3269
++armadillo460		MACH_ARMADILLO460	ARMADILLO460		3270
++lq2			MACH_LQ2		LQ2			3271
++sweda_tms2		MACH_SWEDA_TMS2		SWEDA_TMS2		3272
diff --git a/target/linux/generic/patches-2.6.38/060-block2mtd_init.patch b/target/linux/generic/patches-2.6.38/060-block2mtd_init.patch
new file mode 100644
index 0000000000..60d96b1a97
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/060-block2mtd_init.patch
@@ -0,0 +1,116 @@
+--- a/drivers/mtd/devices/block2mtd.c
++++ b/drivers/mtd/devices/block2mtd.c
+@@ -14,6 +14,7 @@
+ #include <linux/list.h>
+ #include <linux/init.h>
+ #include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
+ #include <linux/buffer_head.h>
+ #include <linux/mutex.h>
+ #include <linux/mount.h>
+@@ -232,11 +233,12 @@ static void block2mtd_free_device(struct
+ 
+ 
+ /* FIXME: ensure that mtd->size % erase_size == 0 */
+-static struct block2mtd_dev *add_device(char *devname, int erase_size)
++static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
+ {
+ 	const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
+ 	struct block_device *bdev;
+ 	struct block2mtd_dev *dev;
++	struct mtd_partition *part;
+ 	char *name;
+ 
+ 	if (!devname)
+@@ -275,13 +277,16 @@ static struct block2mtd_dev *add_device(
+ 
+ 	/* Setup the MTD structure */
+ 	/* make the name contain the block device in */
+-	name = kasprintf(GFP_KERNEL, "block2mtd: %s", devname);
++	if (!mtdname)
++		mtdname = devname;
++	name = kmalloc(strlen(mtdname) + 1, GFP_KERNEL);
+ 	if (!name)
+ 		goto devinit_err;
+ 
++	strcpy(name, mtdname);
+ 	dev->mtd.name = name;
+ 
+-	dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK;
++	dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK & ~(erase_size - 1);
+ 	dev->mtd.erasesize = erase_size;
+ 	dev->mtd.writesize = 1;
+ 	dev->mtd.type = MTD_RAM;
+@@ -294,14 +299,17 @@ static struct block2mtd_dev *add_device(
+ 	dev->mtd.priv = dev;
+ 	dev->mtd.owner = THIS_MODULE;
+ 
+-	if (add_mtd_device(&dev->mtd)) {
++	part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
++	part->name = dev->mtd.name;
++	part->offset = 0;
++	part->size = dev->mtd.size;
++	if (add_mtd_partitions(&dev->mtd, part, 1)) {
+ 		/* Device didnt get added, so free the entry */
+ 		goto devinit_err;
+ 	}
+ 	list_add(&dev->list, &blkmtd_device_list);
+ 	INFO("mtd%d: [%s] erase_size = %dKiB [%d]", dev->mtd.index,
+-			dev->mtd.name + strlen("block2mtd: "),
+-			dev->mtd.erasesize >> 10, dev->mtd.erasesize);
++			mtdname, dev->mtd.erasesize >> 10, dev->mtd.erasesize);
+ 	return dev;
+ 
+ devinit_err:
+@@ -374,9 +382,9 @@ static char block2mtd_paramline[80 + 12]
+ 
+ static int block2mtd_setup2(const char *val)
+ {
+-	char buf[80 + 12]; /* 80 for device, 12 for erase size */
++	char buf[80 + 12 + 80]; /* 80 for device, 12 for erase size, 80 for name */
+ 	char *str = buf;
+-	char *token[2];
++	char *token[3];
+ 	char *name;
+ 	size_t erase_size = PAGE_SIZE;
+ 	int i, ret;
+@@ -387,7 +395,7 @@ static int block2mtd_setup2(const char *
+ 	strcpy(str, val);
+ 	kill_final_newline(str);
+ 
+-	for (i = 0; i < 2; i++)
++	for (i = 0; i < 3; i++)
+ 		token[i] = strsep(&str, ",");
+ 
+ 	if (str)
+@@ -406,8 +414,10 @@ static int block2mtd_setup2(const char *
+ 			parse_err("illegal erase size");
+ 		}
+ 	}
++	if (token[2] && (strlen(token[2]) + 1 > 80))
++		parse_err("mtd device name too long");
+ 
+-	add_device(name, erase_size);
++	add_device(name, erase_size, token[2]);
+ 
+ 	return 0;
+ }
+@@ -441,7 +451,7 @@ static int block2mtd_setup(const char *v
+ 
+ 
+ module_param_call(block2mtd, block2mtd_setup, NULL, NULL, 0200);
+-MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>]\"");
++MODULE_PARM_DESC(block2mtd, "Device to use. \"block2mtd=<dev>[,<erasesize>[,<name>]]\"");
+ 
+ static int __init block2mtd_init(void)
+ {
+--- a/fs/partitions/check.c
++++ b/fs/partitions/check.c
+@@ -663,6 +663,7 @@ rescan:
+ 	kfree(state);
+ 	return 0;
+ }
++EXPORT_SYMBOL(rescan_partitions);
+ 
+ unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p)
+ {
diff --git a/target/linux/generic/patches-2.6.38/065-rootfs_split.patch b/target/linux/generic/patches-2.6.38/065-rootfs_split.patch
new file mode 100644
index 0000000000..04cc90a48b
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/065-rootfs_split.patch
@@ -0,0 +1,618 @@
+--- a/drivers/mtd/Kconfig
++++ b/drivers/mtd/Kconfig
+@@ -55,6 +55,16 @@ config MTD_PARTITIONS
+ 
+ if MTD_PARTITIONS
+ 
++config MTD_ROOTFS_ROOT_DEV
++	bool "Automatically set 'rootfs' partition to be root filesystem"
++	depends on MTD_PARTITIONS
++	default y
++
++config MTD_ROOTFS_SPLIT
++	bool "Automatically split 'rootfs' partition for squashfs"
++	depends on MTD_PARTITIONS
++	default y
++
+ config MTD_REDBOOT_PARTS
+ 	tristate "RedBoot partition table parsing"
+ 	---help---
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -29,6 +29,8 @@
+ #include <linux/kmod.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
++#include <linux/root_dev.h>
++#include <linux/magic.h>
+ #include <linux/err.h>
+ 
+ /* Our partition linked list */
+@@ -48,7 +50,7 @@ struct mtd_part {
+  * the pointer to that structure with this macro.
+  */
+ #define PART(x)  ((struct mtd_part *)(x))
+-
++#define IS_PART(mtd) (mtd->read == part_read)
+ 
+ /*
+  * MTD methods which simply translate the effective address and pass through
+@@ -636,6 +638,153 @@ int mtd_del_partition(struct mtd_info *m
+ }
+ EXPORT_SYMBOL_GPL(mtd_del_partition);
+ 
++#ifdef CONFIG_MTD_ROOTFS_SPLIT
++#define ROOTFS_SPLIT_NAME "rootfs_data"
++#define ROOTFS_REMOVED_NAME "<removed>"
++
++struct squashfs_super_block {
++	__le32 s_magic;
++	__le32 pad0[9];
++	__le64 bytes_used;
++};
++
++
++static int split_squashfs(struct mtd_info *master, int offset, int *split_offset)
++{
++	struct squashfs_super_block sb;
++	int len, ret;
++
++	ret = master->read(master, offset, sizeof(sb), &len, (void *) &sb);
++	if (ret || (len != sizeof(sb))) {
++		printk(KERN_ALERT "split_squashfs: error occured while reading "
++			"from \"%s\"\n", master->name);
++		return -EINVAL;
++	}
++
++	if (SQUASHFS_MAGIC != le32_to_cpu(sb.s_magic) ) {
++		printk(KERN_ALERT "split_squashfs: no squashfs found in \"%s\"\n",
++			master->name);
++		*split_offset = 0;
++		return 0;
++	}
++
++	if (le64_to_cpu((sb.bytes_used)) <= 0) {
++		printk(KERN_ALERT "split_squashfs: squashfs is empty in \"%s\"\n",
++			master->name);
++		*split_offset = 0;
++		return 0;
++	}
++
++	len = (u32) le64_to_cpu(sb.bytes_used);
++	len += (offset & 0x000fffff);
++	len +=  (master->erasesize - 1);
++	len &= ~(master->erasesize - 1);
++	len -= (offset & 0x000fffff);
++	*split_offset = offset + len;
++
++	return 0;
++}
++
++static int split_rootfs_data(struct mtd_info *master, struct mtd_info *rpart, const struct mtd_partition *part)
++{
++	struct mtd_partition *dpart;
++	struct mtd_part *slave = NULL;
++	int ret, split_offset = 0;
++
++	ret = split_squashfs(master, part->offset, &split_offset);
++	if (ret)
++		return ret;
++
++	if (split_offset <= 0)
++		return 0;
++
++	dpart = kmalloc(sizeof(*part)+sizeof(ROOTFS_SPLIT_NAME)+1, GFP_KERNEL);
++	if (dpart == NULL) {
++		printk(KERN_INFO "split_squashfs: no memory for partition \"%s\"\n",
++			ROOTFS_SPLIT_NAME);
++		return -ENOMEM;
++	}
++
++	memcpy(dpart, part, sizeof(*part));
++	dpart->name = (unsigned char *)&dpart[1];
++	strcpy(dpart->name, ROOTFS_SPLIT_NAME);
++
++	dpart->size -= split_offset - dpart->offset;
++	dpart->offset = split_offset;
++
++	if (dpart == NULL)
++		return 1;
++
++	printk(KERN_INFO "mtd: partition \"%s\" created automatically, ofs=%llX, len=%llX \n",
++		ROOTFS_SPLIT_NAME, dpart->offset, dpart->size);
++
++	slave = allocate_partition(master, dpart, 0, split_offset);
++	if (IS_ERR(slave))
++		return PTR_ERR(slave);
++	mutex_lock(&mtd_partitions_mutex);
++	list_add(&slave->list, &mtd_partitions);
++	mutex_unlock(&mtd_partitions_mutex);
++
++	add_mtd_device(&slave->mtd);
++
++	rpart->split = &slave->mtd;
++
++	return 0;
++}
++
++static int refresh_rootfs_split(struct mtd_info *mtd)
++{
++	struct mtd_partition tpart;
++	struct mtd_part *part;
++	char *name;
++	//int index = 0;
++	int offset, size;
++	int ret;
++
++	part = PART(mtd);
++
++	/* check for the new squashfs offset first */
++	ret = split_squashfs(part->master, part->offset, &offset);
++	if (ret)
++		return ret;
++
++	if ((offset > 0) && !mtd->split) {
++		printk(KERN_INFO "%s: creating new split partition for \"%s\"\n", __func__, mtd->name);
++		/* if we don't have a rootfs split partition, create a new one */
++		tpart.name = (char *) mtd->name;
++		tpart.size = mtd->size;
++		tpart.offset = part->offset;
++
++		return split_rootfs_data(part->master, &part->mtd, &tpart);
++	} else if ((offset > 0) && mtd->split) {
++		/* update the offsets of the existing partition */
++		size = mtd->size + part->offset - offset;
++
++		part = PART(mtd->split);
++		part->offset = offset;
++		part->mtd.size = size;
++		printk(KERN_INFO "%s: %s partition \"" ROOTFS_SPLIT_NAME "\", offset: 0x%06x (0x%06x)\n",
++			__func__, (!strcmp(part->mtd.name, ROOTFS_SPLIT_NAME) ? "updating" : "creating"),
++			(u32) part->offset, (u32) part->mtd.size);
++		name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL);
++		strcpy(name, ROOTFS_SPLIT_NAME);
++		part->mtd.name = name;
++	} else if ((offset <= 0) && mtd->split) {
++		printk(KERN_INFO "%s: removing partition \"%s\"\n", __func__, mtd->split->name);
++
++		/* mark existing partition as removed */
++		part = PART(mtd->split);
++		name = kmalloc(sizeof(ROOTFS_SPLIT_NAME) + 1, GFP_KERNEL);
++		strcpy(name, ROOTFS_REMOVED_NAME);
++		part->mtd.name = name;
++		part->offset = 0;
++		part->mtd.size = 0;
++	}
++
++	return 0;
++}
++#endif /* CONFIG_MTD_ROOTFS_SPLIT */
++
+ /*
+  * This function, given a master MTD object and a partition table, creates
+  * and registers slave MTD objects which are bound to the master according to
+@@ -651,7 +800,7 @@ int add_mtd_partitions(struct mtd_info *
+ {
+ 	struct mtd_part *slave;
+ 	uint64_t cur_offset = 0;
+-	int i;
++	int i, ret;
+ 
+ 	printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
+ 
+@@ -666,6 +815,21 @@ int add_mtd_partitions(struct mtd_info *
+ 
+ 		add_mtd_device(&slave->mtd);
+ 
++		if (!strcmp(parts[i].name, "rootfs")) {
++#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
++			if (ROOT_DEV == 0) {
++				printk(KERN_NOTICE "mtd: partition \"rootfs\" "
++					"set to be root filesystem\n");
++				ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, slave->mtd.index);
++			}
++#endif
++#ifdef CONFIG_MTD_ROOTFS_SPLIT
++			ret = split_rootfs_data(master, &slave->mtd, &parts[i]);
++			/* if (ret == 0)
++			 * 	j++; */
++#endif
++		}
++
+ 		cur_offset = slave->offset + slave->mtd.size;
+ 	}
+ 
+@@ -673,6 +837,32 @@ int add_mtd_partitions(struct mtd_info *
+ }
+ EXPORT_SYMBOL(add_mtd_partitions);
+ 
++int refresh_mtd_partitions(struct mtd_info *mtd)
++{
++	int ret = 0;
++
++	if (IS_PART(mtd)) {
++		struct mtd_part *part;
++		struct mtd_info *master;
++
++		part = PART(mtd);
++		master = part->master;
++		if (master->refresh_device)
++			ret = master->refresh_device(master);
++	}
++
++	if (!ret && mtd->refresh_device)
++		ret = mtd->refresh_device(mtd);
++
++#ifdef CONFIG_MTD_ROOTFS_SPLIT
++	if (!ret && IS_PART(mtd) && !strcmp(mtd->name, "rootfs"))
++		refresh_rootfs_split(mtd);
++#endif
++
++	return 0;
++}
++EXPORT_SYMBOL_GPL(refresh_mtd_partitions);
++
+ static DEFINE_SPINLOCK(part_parser_lock);
+ static LIST_HEAD(part_parsers);
+ 
+--- a/drivers/mtd/devices/block2mtd.c
++++ b/drivers/mtd/devices/block2mtd.c
+@@ -30,6 +30,8 @@ struct block2mtd_dev {
+ 	struct block_device *blkdev;
+ 	struct mtd_info mtd;
+ 	struct mutex write_mutex;
++	rwlock_t bdev_mutex;
++	char devname[0];
+ };
+ 
+ 
+@@ -82,6 +84,12 @@ static int block2mtd_erase(struct mtd_in
+ 	size_t len = instr->len;
+ 	int err;
+ 
++	read_lock(&dev->bdev_mutex);
++	if (!dev->blkdev) {
++		err = -EINVAL;
++		goto done;
++	}
++
+ 	instr->state = MTD_ERASING;
+ 	mutex_lock(&dev->write_mutex);
+ 	err = _block2mtd_erase(dev, from, len);
+@@ -93,6 +101,10 @@ static int block2mtd_erase(struct mtd_in
+ 		instr->state = MTD_ERASE_DONE;
+ 
+ 	mtd_erase_callback(instr);
++
++done:
++	read_unlock(&dev->bdev_mutex);
++
+ 	return err;
+ }
+ 
+@@ -104,10 +116,14 @@ static int block2mtd_read(struct mtd_inf
+ 	struct page *page;
+ 	int index = from >> PAGE_SHIFT;
+ 	int offset = from & (PAGE_SIZE-1);
+-	int cpylen;
++	int cpylen, err = 0;
++
++	read_lock(&dev->bdev_mutex);
++	if (!dev->blkdev || (from > mtd->size)) {
++		err = -EINVAL;
++		goto done;
++	}
+ 
+-	if (from > mtd->size)
+-		return -EINVAL;
+ 	if (from + len > mtd->size)
+ 		len = mtd->size - from;
+ 
+@@ -122,10 +138,14 @@ static int block2mtd_read(struct mtd_inf
+ 		len = len - cpylen;
+ 
+ 		page = page_read(dev->blkdev->bd_inode->i_mapping, index);
+-		if (!page)
+-			return -ENOMEM;
+-		if (IS_ERR(page))
+-			return PTR_ERR(page);
++		if (!page) {
++			err = -ENOMEM;
++			goto done;
++		}
++		if (IS_ERR(page)) {
++			err = PTR_ERR(page);
++			goto done;
++		}
+ 
+ 		memcpy(buf, page_address(page) + offset, cpylen);
+ 		page_cache_release(page);
+@@ -136,7 +156,10 @@ static int block2mtd_read(struct mtd_inf
+ 		offset = 0;
+ 		index++;
+ 	}
+-	return 0;
++
++done:
++	read_unlock(&dev->bdev_mutex);
++	return err;
+ }
+ 
+ 
+@@ -188,12 +211,22 @@ static int block2mtd_write(struct mtd_in
+ 		size_t *retlen, const u_char *buf)
+ {
+ 	struct block2mtd_dev *dev = mtd->priv;
+-	int err;
++	int err = 0;
++
++	read_lock(&dev->bdev_mutex);
++	if (!dev->blkdev) {
++		err = -EINVAL;
++		goto done;
++	}
+ 
+ 	if (!len)
+-		return 0;
+-	if (to >= mtd->size)
+-		return -ENOSPC;
++		goto done;
++
++	if (to >= mtd->size) {
++		err = -ENOSPC;
++		goto done;
++	}
++
+ 	if (to + len > mtd->size)
+ 		len = mtd->size - to;
+ 
+@@ -202,6 +235,9 @@ static int block2mtd_write(struct mtd_in
+ 	mutex_unlock(&dev->write_mutex);
+ 	if (err > 0)
+ 		err = 0;
++
++done:
++	read_unlock(&dev->bdev_mutex);
+ 	return err;
+ }
+ 
+@@ -210,33 +246,109 @@ static int block2mtd_write(struct mtd_in
+ static void block2mtd_sync(struct mtd_info *mtd)
+ {
+ 	struct block2mtd_dev *dev = mtd->priv;
++	read_lock(&dev->bdev_mutex);
++	if (dev->blkdev)
+ 	sync_blockdev(dev->blkdev);
++	read_unlock(&dev->bdev_mutex);
++
+ 	return;
+ }
+ 
+ 
++static int _open_bdev(struct block2mtd_dev *dev)
++{
++	const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
++	struct block_device *bdev;
++
++	/* Get a handle on the device */
++	bdev = blkdev_get_by_path(dev->devname, mode, dev);
++#ifndef MODULE
++	if (IS_ERR(bdev)) {
++
++		/* We might not have rootfs mounted at this point. Try
++		   to resolve the device name by other means. */
++
++		dev_t devt = name_to_dev_t(dev->devname);
++		if (devt)
++			bdev = blkdev_get_by_dev(devt, mode, dev);
++	}
++#endif
++
++	if (IS_ERR(bdev)) {
++		ERROR("error: cannot open device %s", dev->devname);
++		return 1;
++	}
++	dev->blkdev = bdev;
++
++	if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
++		ERROR("attempting to use an MTD device as a block device");
++		return 1;
++	}
++
++	return 0;
++}
++
++static void _close_bdev(struct block2mtd_dev *dev)
++{
++	struct block_device *bdev;
++
++	if (!dev->blkdev)
++		return;
++
++	bdev = dev->blkdev;
++	invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping, 0, -1);
++	blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
++	dev->blkdev = NULL;
++}
++
+ static void block2mtd_free_device(struct block2mtd_dev *dev)
+ {
+ 	if (!dev)
+ 		return;
+ 
+ 	kfree(dev->mtd.name);
+-
+-	if (dev->blkdev) {
+-		invalidate_mapping_pages(dev->blkdev->bd_inode->i_mapping,
+-					0, -1);
+-		blkdev_put(dev->blkdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
+-	}
+-
++	_close_bdev(dev);
+ 	kfree(dev);
+ }
+ 
+ 
+-/* FIXME: ensure that mtd->size % erase_size == 0 */
+-static struct block2mtd_dev *add_device(char *devname, int erase_size, const char *mtdname)
++static int block2mtd_refresh(struct mtd_info *mtd)
+ {
+-	const fmode_t mode = FMODE_READ | FMODE_WRITE | FMODE_EXCL;
++	struct block2mtd_dev *dev = mtd->priv;
+ 	struct block_device *bdev;
++	dev_t devt;
++	int err = 0;
++
++	/* no other mtd function can run at this point */
++	write_lock(&dev->bdev_mutex);
++
++	/* get the device number for the whole disk */
++	devt = MKDEV(MAJOR(dev->blkdev->bd_dev), 0);
++
++	/* close the old block device */
++	_close_bdev(dev);
++
++	/* open the whole disk, issue a partition rescan, then */
++	bdev = blkdev_get_by_dev(devt, FMODE_WRITE | FMODE_READ);
++	if (!bdev || !bdev->bd_disk)
++		err = -EINVAL;
++#ifndef CONFIG_MTD_BLOCK2MTD_MODULE
++	else
++		err = rescan_partitions(bdev->bd_disk, bdev);
++#endif
++	if (bdev)
++		blkdev_put(bdev, FMODE_READ|FMODE_WRITE|FMODE_EXCL);
++
++	/* try to open the partition block device again */
++	_open_bdev(dev);
++	write_unlock(&dev->bdev_mutex);
++
++	return err;
++}
++
++/* FIXME: ensure that mtd->size % erase_size == 0 */
++static struct block2mtd_dev *add_device(char *devname, int erase_size, char *mtdname)
++{
+ 	struct block2mtd_dev *dev;
+ 	struct mtd_partition *part;
+ 	char *name;
+@@ -244,36 +356,17 @@ static struct block2mtd_dev *add_device(
+ 	if (!devname)
+ 		return NULL;
+ 
+-	dev = kzalloc(sizeof(struct block2mtd_dev), GFP_KERNEL);
++	dev = kzalloc(sizeof(struct block2mtd_dev) + strlen(devname) + 1, GFP_KERNEL);
+ 	if (!dev)
+ 		return NULL;
+ 
+-	/* Get a handle on the device */
+-	bdev = blkdev_get_by_path(devname, mode, dev);
+-#ifndef MODULE
+-	if (IS_ERR(bdev)) {
+-
+-		/* We might not have rootfs mounted at this point. Try
+-		   to resolve the device name by other means. */
++	strcpy(dev->devname, devname);
+ 
+-		dev_t devt = name_to_dev_t(devname);
+-		if (devt)
+-			bdev = blkdev_get_by_dev(devt, mode, dev);
+-	}
+-#endif
+-
+-	if (IS_ERR(bdev)) {
+-		ERROR("error: cannot open device %s", devname);
++	if (_open_bdev(dev))
+ 		goto devinit_err;
+-	}
+-	dev->blkdev = bdev;
+-
+-	if (MAJOR(bdev->bd_dev) == MTD_BLOCK_MAJOR) {
+-		ERROR("attempting to use an MTD device as a block device");
+-		goto devinit_err;
+-	}
+ 
+ 	mutex_init(&dev->write_mutex);
++	rwlock_init(&dev->bdev_mutex);
+ 
+ 	/* Setup the MTD structure */
+ 	/* make the name contain the block device in */
+@@ -298,6 +391,7 @@ static struct block2mtd_dev *add_device(
+ 	dev->mtd.read = block2mtd_read;
+ 	dev->mtd.priv = dev;
+ 	dev->mtd.owner = THIS_MODULE;
++	dev->mtd.refresh_device = block2mtd_refresh;
+ 
+ 	part = kzalloc(sizeof(struct mtd_partition), GFP_KERNEL);
+ 	part->name = dev->mtd.name;
+--- a/drivers/mtd/mtdchar.c
++++ b/drivers/mtd/mtdchar.c
+@@ -841,6 +841,13 @@ static int mtd_ioctl(struct file *file,
+ 		file->f_pos = 0;
+ 		break;
+ 	}
++#ifdef CONFIG_MTD_PARTITIONS
++	case MTDREFRESH:
++	{
++		ret = refresh_mtd_partitions(mtd);
++		break;
++	}
++#endif
+ 
+ 	case OTPGETREGIONCOUNT:
+ 	case OTPGETREGIONINFO:
+--- a/include/linux/mtd/mtd.h
++++ b/include/linux/mtd/mtd.h
+@@ -125,6 +125,7 @@ struct nand_ecclayout {
+ 	struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE];
+ };
+ 
++struct mtd_info;
+ struct mtd_info {
+ 	u_char type;
+ 	uint32_t flags;
+@@ -277,6 +278,9 @@ struct mtd_info {
+ 	struct device dev;
+ 	int usecount;
+ 
++	int (*refresh_device)(struct mtd_info *mtd);
++	struct mtd_info *split;
++
+ 	/* If the driver is something smart, like UBI, it may need to maintain
+ 	 * its own reference counting. The below functions are only for driver.
+ 	 * The driver may register its callbacks. These callbacks are not
+--- a/include/linux/mtd/partitions.h
++++ b/include/linux/mtd/partitions.h
+@@ -34,12 +34,14 @@
+  * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
+  */
+ 
++struct mtd_partition;
+ struct mtd_partition {
+ 	char *name;			/* identifier string */
+ 	uint64_t size;			/* partition size */
+ 	uint64_t offset;		/* offset within the master MTD space */
+ 	uint32_t mask_flags;		/* master MTD flags to mask out for this partition */
+ 	struct nand_ecclayout *ecclayout;	/* out of band layout for this partition (NAND only) */
++	int (*refresh_partition)(struct mtd_info *);
+ };
+ 
+ #define MTDPART_OFS_NXTBLK	(-2)
+@@ -51,6 +53,7 @@ struct mtd_info;
+ 
+ int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
+ int del_mtd_partitions(struct mtd_info *);
++int refresh_mtd_partitions(struct mtd_info *);
+ 
+ /*
+  * Functions dealing with the various ways of partitioning the space
+--- a/include/mtd/mtd-abi.h
++++ b/include/mtd/mtd-abi.h
+@@ -127,6 +127,7 @@ struct otp_info {
+ #define MEMWRITEOOB64		_IOWR('M', 21, struct mtd_oob_buf64)
+ #define MEMREADOOB64		_IOWR('M', 22, struct mtd_oob_buf64)
+ #define MEMISLOCKED		_IOR('M', 23, struct erase_info_user)
++#define MTDREFRESH		_IO('M', 23)
+ 
+ /*
+  * Obsolete legacy interface. Keep it in order not to break userspace
diff --git a/target/linux/generic/patches-2.6.38/066-block2mtd_probe.patch b/target/linux/generic/patches-2.6.38/066-block2mtd_probe.patch
new file mode 100644
index 0000000000..1afd2ff20a
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/066-block2mtd_probe.patch
@@ -0,0 +1,10 @@
+--- a/drivers/mtd/devices/block2mtd.c
++++ b/drivers/mtd/devices/block2mtd.c
+@@ -268,6 +268,7 @@ static int _open_bdev(struct block2mtd_d
+ 		/* We might not have rootfs mounted at this point. Try
+ 		   to resolve the device name by other means. */
+ 
++		wait_for_device_probe();
+ 		dev_t devt = name_to_dev_t(dev->devname);
+ 		if (devt)
+ 			bdev = blkdev_get_by_dev(devt, mode, dev);
diff --git a/target/linux/generic/patches-2.6.38/070-redboot_space.patch b/target/linux/generic/patches-2.6.38/070-redboot_space.patch
new file mode 100644
index 0000000000..fb6700b07e
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/070-redboot_space.patch
@@ -0,0 +1,30 @@
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -267,14 +267,21 @@ static int parse_redboot_partitions(stru
+ #endif
+ 		names += strlen(names)+1;
+ 
+-#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ 		if(fl->next && fl->img->flash_base + fl->img->size + master->erasesize <= fl->next->img->flash_base) {
+-			i++;
+-			parts[i].offset = parts[i-1].size + parts[i-1].offset;
+-			parts[i].size = fl->next->img->flash_base - parts[i].offset;
+-			parts[i].name = nullname;
+-		}
++			if (!strcmp(parts[i].name, "rootfs")) {
++				parts[i].size = fl->next->img->flash_base;
++				parts[i].size &= ~(master->erasesize - 1);
++				parts[i].size -= parts[i].offset;
++#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
++				nrparts--;
++			} else {
++				i++;
++				parts[i].offset = parts[i-1].size + parts[i-1].offset;
++				parts[i].size = fl->next->img->flash_base - parts[i].offset;
++				parts[i].name = nullname;
+ #endif
++			}
++		}
+ 		tmp_fl = fl;
+ 		fl = fl->next;
+ 		kfree(tmp_fl);
diff --git a/target/linux/generic/patches-2.6.38/071-redboot_boardconfig.patch b/target/linux/generic/patches-2.6.38/071-redboot_boardconfig.patch
new file mode 100644
index 0000000000..9188cee29c
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/071-redboot_boardconfig.patch
@@ -0,0 +1,60 @@
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -29,6 +29,8 @@
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+ 
++#define BOARD_CONFIG_PART		"boardconfig"
++
+ struct fis_image_desc {
+     unsigned char name[16];      // Null terminated name
+     uint32_t	  flash_base;    // Address within FLASH of image
+@@ -59,6 +61,7 @@ static int parse_redboot_partitions(stru
+                              struct mtd_partition **pparts,
+                              unsigned long fis_origin)
+ {
++	unsigned long max_offset = 0;
+ 	int nrparts = 0;
+ 	struct fis_image_desc *buf;
+ 	struct mtd_partition *parts;
+@@ -227,14 +230,14 @@ static int parse_redboot_partitions(stru
+ 		}
+ 	}
+ #endif
+-	parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
++	parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen + sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
+ 
+ 	if (!parts) {
+ 		ret = -ENOMEM;
+ 		goto out;
+ 	}
+ 
+-	nullname = (char *)&parts[nrparts];
++	nullname = (char *)&parts[nrparts + 1];
+ #ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
+ 	if (nulllen > 0) {
+ 		strcpy(nullname, nullstring);
+@@ -253,6 +256,8 @@ static int parse_redboot_partitions(stru
+ 	}
+ #endif
+ 	for ( ; i<nrparts; i++) {
++		if(max_offset < buf[i].flash_base + buf[i].size)
++			max_offset = buf[i].flash_base + buf[i].size;
+ 		parts[i].size = fl->img->size;
+ 		parts[i].offset = fl->img->flash_base;
+ 		parts[i].name = names;
+@@ -286,6 +291,14 @@ static int parse_redboot_partitions(stru
+ 		fl = fl->next;
+ 		kfree(tmp_fl);
+ 	}
++	if(master->size - max_offset >= master->erasesize)
++	{
++		parts[nrparts].size = master->size - max_offset;
++		parts[nrparts].offset = max_offset;
++		parts[nrparts].name = names;
++		strcpy(names, BOARD_CONFIG_PART);
++		nrparts++;
++	}
+ 	ret = nrparts;
+ 	*pparts = parts;
+  out:
diff --git a/target/linux/generic/patches-2.6.38/080-mtd_plat_nand_chip_fixup.patch b/target/linux/generic/patches-2.6.38/080-mtd_plat_nand_chip_fixup.patch
new file mode 100644
index 0000000000..8ad32a8aad
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/080-mtd_plat_nand_chip_fixup.patch
@@ -0,0 +1,37 @@
+---
+ drivers/mtd/nand/plat_nand.c |   13 ++++++++++++-
+ include/linux/mtd/nand.h     |    1 +
+ 2 files changed, 13 insertions(+), 1 deletion(-)
+
+--- a/include/linux/mtd/nand.h
++++ b/include/linux/mtd/nand.h
+@@ -622,6 +622,7 @@ struct platform_nand_chip {
+ 	int chip_delay;
+ 	unsigned int options;
+ 	const char **part_probe_types;
++	int (*chip_fixup)(struct mtd_info *mtd);
+ 	void (*set_parts)(uint64_t size, struct platform_nand_chip *chip);
+ 	void *priv;
+ };
+--- a/drivers/mtd/nand/plat_nand.c
++++ b/drivers/mtd/nand/plat_nand.c
+@@ -96,7 +96,18 @@ static int __devinit plat_nand_probe(str
+ 	}
+ 
+ 	/* Scan to find existance of the device */
+-	if (nand_scan(&data->mtd, pdata->chip.nr_chips)) {
++	if (nand_scan_ident(&data->mtd, pdata->chip.nr_chips, NULL)) {
++		res = -ENXIO;
++		goto out;
++	}
++
++	if (pdata->chip.chip_fixup) {
++		res = pdata->chip.chip_fixup(&data->mtd);
++		if (res)
++			goto out;
++	}
++
++	if (nand_scan_tail(&data->mtd)) {
+ 		err = -ENXIO;
+ 		goto out;
+ 	}
diff --git a/target/linux/generic/patches-2.6.38/081-mtd_myloader_partition_parser.patch b/target/linux/generic/patches-2.6.38/081-mtd_myloader_partition_parser.patch
new file mode 100644
index 0000000000..6e3e3b7085
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/081-mtd_myloader_partition_parser.patch
@@ -0,0 +1,35 @@
+--- a/drivers/mtd/Kconfig
++++ b/drivers/mtd/Kconfig
+@@ -184,6 +184,22 @@ config MTD_AR7_PARTS
+ 
+ endif # MTD_PARTITIONS
+ 
++config MTD_MYLOADER_PARTS
++	tristate "MyLoader partition parsing"
++	depends on MTD_PARTITIONS && (ADM5120 || ATHEROS_AR231X || ATHEROS_AR71XX)
++	---help---
++	  MyLoader is a bootloader which allows the user to define partitions
++	  in flash devices, by putting a table in the second erase block
++	  on the device, similar to a partition table. This table gives the 
++	  offsets and lengths of the user defined partitions.
++
++	  If you need code which can detect and parse these tables, and
++	  register MTD 'partitions' corresponding to each image detected,
++	  enable this option.
++
++	  You will still need the parsing functions to be called by the driver
++	  for your particular device. It won't happen automatically.
++
+ comment "User Modules And Translation Layers"
+ 
+ config MTD_CHAR
+--- a/drivers/mtd/Makefile
++++ b/drivers/mtd/Makefile
+@@ -13,6 +13,7 @@ obj-$(CONFIG_MTD_REDBOOT_PARTS) += redbo
+ obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
+ obj-$(CONFIG_MTD_AFS_PARTS)	+= afs.o
+ obj-$(CONFIG_MTD_AR7_PARTS)	+= ar7part.o
++obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
+ 
+ # 'Users' - code which presents functionality to userspace.
+ obj-$(CONFIG_MTD_CHAR)		+= mtdchar.o
diff --git a/target/linux/generic/patches-2.6.38/082-mtd_info_move_forward_decl.patch b/target/linux/generic/patches-2.6.38/082-mtd_info_move_forward_decl.patch
new file mode 100644
index 0000000000..13f0a217d4
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/082-mtd_info_move_forward_decl.patch
@@ -0,0 +1,18 @@
+--- a/include/linux/mtd/partitions.h
++++ b/include/linux/mtd/partitions.h
+@@ -33,6 +33,7 @@
+  * Note: writeable partitions require their size and offset be
+  * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
+  */
++struct mtd_info;
+ 
+ struct mtd_partition;
+ struct mtd_partition {
+@@ -49,7 +50,6 @@ struct mtd_partition {
+ #define MTDPART_SIZ_FULL	(0)
+ 
+ 
+-struct mtd_info;
+ 
+ int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
+ int del_mtd_partitions(struct mtd_info *);
diff --git a/target/linux/generic/patches-2.6.38/083-mtd_fix_nand_correct_data_return_code.patch b/target/linux/generic/patches-2.6.38/083-mtd_fix_nand_correct_data_return_code.patch
new file mode 100644
index 0000000000..f630059e87
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/083-mtd_fix_nand_correct_data_return_code.patch
@@ -0,0 +1,12 @@
+--- a/drivers/mtd/nand/nand_ecc.c
++++ b/drivers/mtd/nand/nand_ecc.c
+@@ -507,8 +507,7 @@ int __nand_correct_data(unsigned char *b
+ 	if ((bitsperbyte[b0] + bitsperbyte[b1] + bitsperbyte[b2]) == 1)
+ 		return 1;	/* error in ecc data; no action needed */
+ 
+-	printk(KERN_ERR "uncorrectable error : ");
+-	return -1;
++	return -EBADMSG;
+ }
+ EXPORT_SYMBOL(__nand_correct_data);
+ 
diff --git a/target/linux/generic/patches-2.6.38/084-mtd_m25p80_add_pm25lv_flash_support.patch b/target/linux/generic/patches-2.6.38/084-mtd_m25p80_add_pm25lv_flash_support.patch
new file mode 100644
index 0000000000..91cdd9763e
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/084-mtd_m25p80_add_pm25lv_flash_support.patch
@@ -0,0 +1,39 @@
+--- a/drivers/mtd/devices/m25p80.c
++++ b/drivers/mtd/devices/m25p80.c
+@@ -43,6 +43,7 @@
+ #define	OPCODE_BE_4K		0x20	/* Erase 4KiB block */
+ #define	OPCODE_BE_32K		0x52	/* Erase 32KiB block */
+ #define	OPCODE_CHIP_ERASE	0xc7	/* Erase whole flash chip */
++#define	OPCODE_BE_4K_PMC	0xd7	/* Erase 4KiB block on PMC chips*/
+ #define	OPCODE_SE		0xd8	/* Sector erase (usually 64KiB) */
+ #define	OPCODE_RDID		0x9f	/* Read JEDEC ID */
+ 
+@@ -617,6 +618,7 @@ struct flash_info {
+ 	u16		flags;
+ #define	SECT_4K		0x01		/* OPCODE_BE_4K works uniformly */
+ #define	M25P_NO_ERASE	0x02		/* No erase command needed */
++#define	SECT_4K_PMC	0x04		/* OPCODE_BE_4K_PMC works uniformly */
+ };
+ 
+ #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags)	\
+@@ -674,6 +676,10 @@ static const struct spi_device_id m25p_i
+ 	{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
+ 	{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
+ 
++	/* PMC -- pm25x "blocks" are 32K, sectors are 4K */
++	{ "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
++	{ "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },
++
+ 	/* Spansion -- single (large) sector size only, at least
+ 	 * for the chips listed here (without boot sectors).
+ 	 */
+@@ -894,6 +900,9 @@ static int __devinit m25p_probe(struct s
+ 	if (info->flags & SECT_4K) {
+ 		flash->erase_opcode = OPCODE_BE_4K;
+ 		flash->mtd.erasesize = 4096;
++	} else if (info->flags & SECT_4K_PMC) {
++		flash->erase_opcode = OPCODE_BE_4K_PMC;
++		flash->mtd.erasesize = 4096;
+ 	} else {
+ 		flash->erase_opcode = OPCODE_SE;
+ 		flash->mtd.erasesize = info->sector_size;
diff --git a/target/linux/generic/patches-2.6.38/085-mtd_m25p80_add_en25pxx_support.patch b/target/linux/generic/patches-2.6.38/085-mtd_m25p80_add_en25pxx_support.patch
new file mode 100644
index 0000000000..1edc5b73a5
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/085-mtd_m25p80_add_en25pxx_support.patch
@@ -0,0 +1,13 @@
+--- a/drivers/mtd/devices/m25p80.c
++++ b/drivers/mtd/devices/m25p80.c
+@@ -676,6 +676,10 @@ static const struct spi_device_id m25p_i
+ 	{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
+ 	{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
+ 
++	/* EON -- en25pxx */
++	{ "en25p32", INFO(0x1c2016, 0, 64 * 1024,  64, 0) },
++	{ "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
++
+ 	/* PMC -- pm25x "blocks" are 32K, sectors are 4K */
+ 	{ "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
+ 	{ "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },
diff --git a/target/linux/generic/patches-2.6.38/090-mtd-m25p80-add-en25f32-chip-support.patch b/target/linux/generic/patches-2.6.38/090-mtd-m25p80-add-en25f32-chip-support.patch
new file mode 100644
index 0000000000..d0b3496222
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/090-mtd-m25p80-add-en25f32-chip-support.patch
@@ -0,0 +1,12 @@
+--- a/drivers/mtd/devices/m25p80.c
++++ b/drivers/mtd/devices/m25p80.c
+@@ -657,7 +657,8 @@ static const struct spi_device_id m25p_i
+ 	{ "at26df161a", INFO(0x1f4601, 0, 64 * 1024, 32, SECT_4K) },
+ 	{ "at26df321",  INFO(0x1f4700, 0, 64 * 1024, 64, SECT_4K) },
+ 
+-	/* EON -- en25pxx */
++	/* EON -- en25xxx */
++	{ "en25f32", INFO(0x1c3116, 0, 64 * 1024,  64, SECT_4K) },
+ 	{ "en25p32", INFO(0x1c2016, 0, 64 * 1024,  64, 0) },
+ 	{ "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
+ 
diff --git a/target/linux/generic/patches-2.6.38/091-mtd-alice-gate-add-mx29lv640t-chip-support.patch b/target/linux/generic/patches-2.6.38/091-mtd-alice-gate-add-mx29lv640t-chip-support.patch
new file mode 100644
index 0000000000..e110162a86
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/091-mtd-alice-gate-add-mx29lv640t-chip-support.patch
@@ -0,0 +1,30 @@
+--- a/drivers/mtd/chips/jedec_probe.c
++++ b/drivers/mtd/chips/jedec_probe.c
+@@ -105,6 +105,7 @@
+ #define MX29LV040C	0x004F
+ #define MX29LV160T	0x22C4
+ #define MX29LV160B	0x2249
++#define MX29LV640T	0x227e
+ #define MX29F040	0x00A4
+ #define MX29F016	0x00AD
+ #define MX29F002T	0x00B0
+@@ -1162,6 +1163,19 @@ static const struct amd_flash_info jedec
+ 			ERASEINFO(0x04000,1)
+ 		}
+ 	}, {
++		.mfr_id		= CFI_MFR_MACRONIX,
++		.dev_id		= MX29LV640T,
++		.name		= "Macronix MX29LV640T",
++		.devtypes	= CFI_DEVICETYPE_X16|CFI_DEVICETYPE_X8,
++		.uaddr		= MTD_UADDR_0x0AAA_0x0555,
++		.dev_size	= SIZE_8MiB,
++		.cmd_set	= P_ID_AMD_STD,
++		.nr_regions	= 2,
++		.regions	= {
++			ERASEINFO(0x10000,127),
++			ERASEINFO(0x02000,8)
++		}
++	}, {
+ 		.mfr_id		= CFI_MFR_NEC,
+ 		.dev_id		= UPD29F064115,
+ 		.name		= "NEC uPD29F064115",
diff --git a/target/linux/generic/patches-2.6.38/100-netfilter_layer7_2.22.patch b/target/linux/generic/patches-2.6.38/100-netfilter_layer7_2.22.patch
new file mode 100644
index 0000000000..88b656b5e4
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/100-netfilter_layer7_2.22.patch
@@ -0,0 +1,2132 @@
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -948,6 +948,27 @@ config NETFILTER_XT_MATCH_STATE
+ 
+ 	  To compile it as a module, choose M here.  If unsure, say N.
+ 
++config NETFILTER_XT_MATCH_LAYER7
++	tristate '"layer7" match support'
++	depends on NETFILTER_XTABLES
++	depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK)
++       depends on NETFILTER_ADVANCED
++	help
++	  Say Y if you want to be able to classify connections (and their
++	  packets) based on regular expression matching of their application
++	  layer data.   This is one way to classify applications such as
++	  peer-to-peer filesharing systems that do not always use the same
++	  port.
++
++	  To compile it as a module, choose M here.  If unsure, say N.
++
++config NETFILTER_XT_MATCH_LAYER7_DEBUG
++        bool 'Layer 7 debugging output'
++        depends on NETFILTER_XT_MATCH_LAYER7
++        help
++          Say Y to get lots of debugging output.
++
++
+ config NETFILTER_XT_MATCH_STATISTIC
+ 	tristate '"statistic" match support'
+ 	depends on NETFILTER_ADVANCED
+--- a/net/netfilter/Makefile
++++ b/net/netfilter/Makefile
+@@ -95,6 +95,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_RECENT)
+ obj-$(CONFIG_NETFILTER_XT_MATCH_SCTP) += xt_sctp.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_SOCKET) += xt_socket.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_STATE) += xt_state.o
++obj-$(CONFIG_NETFILTER_XT_MATCH_LAYER7) += xt_layer7.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_STATISTIC) += xt_statistic.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_STRING) += xt_string.o
+ obj-$(CONFIG_NETFILTER_XT_MATCH_TCPMSS) += xt_tcpmss.o
+--- /dev/null
++++ b/net/netfilter/xt_layer7.c
+@@ -0,0 +1,666 @@
++/*
++  Kernel module to match application layer (OSI layer 7) data in connections.
++
++  http://l7-filter.sf.net
++
++  (C) 2003-2009 Matthew Strait and Ethan Sommer.
++
++  This program is free software; you can redistribute it and/or
++  modify it under the terms of the GNU General Public License
++  as published by the Free Software Foundation; either version
++  2 of the License, or (at your option) any later version.
++  http://www.gnu.org/licenses/gpl.txt
++
++  Based on ipt_string.c (C) 2000 Emmanuel Roger <winfield@freegates.be>,
++  xt_helper.c (C) 2002 Harald Welte and cls_layer7.c (C) 2003 Matthew Strait,
++  Ethan Sommer, Justin Levandoski.
++*/
++
++#include <linux/spinlock.h>
++#include <linux/version.h>
++#include <net/ip.h>
++#include <net/tcp.h>
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/netfilter.h>
++#include <net/netfilter/nf_conntrack.h>
++#include <net/netfilter/nf_conntrack_core.h>
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
++#include <net/netfilter/nf_conntrack_extend.h>
++#include <net/netfilter/nf_conntrack_acct.h>
++#endif
++#include <linux/netfilter/x_tables.h>
++#include <linux/netfilter/xt_layer7.h>
++#include <linux/ctype.h>
++#include <linux/proc_fs.h>
++
++#include "regexp/regexp.c"
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Matthew Strait <quadong@users.sf.net>, Ethan Sommer <sommere@users.sf.net>");
++MODULE_DESCRIPTION("iptables application layer match module");
++MODULE_ALIAS("ipt_layer7");
++MODULE_VERSION("2.21");
++
++static int maxdatalen = 2048; // this is the default
++module_param(maxdatalen, int, 0444);
++MODULE_PARM_DESC(maxdatalen, "maximum bytes of data looked at by l7-filter");
++#ifdef CONFIG_NETFILTER_XT_MATCH_LAYER7_DEBUG
++	#define DPRINTK(format,args...) printk(format,##args)
++#else
++	#define DPRINTK(format,args...)
++#endif
++
++/* Number of packets whose data we look at.
++This can be modified through /proc/net/layer7_numpackets */
++static int num_packets = 10;
++
++static struct pattern_cache {
++	char * regex_string;
++	regexp * pattern;
++	struct pattern_cache * next;
++} * first_pattern_cache = NULL;
++
++DEFINE_SPINLOCK(l7_lock);
++
++static int total_acct_packets(struct nf_conn *ct)
++{
++#if LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 26)
++	BUG_ON(ct == NULL);
++	return (ct->counters[IP_CT_DIR_ORIGINAL].packets + ct->counters[IP_CT_DIR_REPLY].packets);
++#else
++	struct nf_conn_counter *acct;
++
++	BUG_ON(ct == NULL);
++	acct = nf_conn_acct_find(ct);
++	if (!acct)
++		return 0;
++	return (acct[IP_CT_DIR_ORIGINAL].packets + acct[IP_CT_DIR_REPLY].packets);
++#endif
++}
++
++#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG
++/* Converts an unfriendly string into a friendly one by
++replacing unprintables with periods and all whitespace with " ". */
++static char * friendly_print(unsigned char * s)
++{
++	char * f = kmalloc(strlen(s) + 1, GFP_ATOMIC);
++	int i;
++
++	if(!f) {
++		if (net_ratelimit())
++			printk(KERN_ERR "layer7: out of memory in "
++					"friendly_print, bailing.\n");
++		return NULL;
++	}
++
++	for(i = 0; i < strlen(s); i++){
++		if(isprint(s[i]) && s[i] < 128)	f[i] = s[i];
++		else if(isspace(s[i]))		f[i] = ' ';
++		else 				f[i] = '.';
++	}
++	f[i] = '\0';
++	return f;
++}
++
++static char dec2hex(int i)
++{
++	switch (i) {
++		case 0 ... 9:
++			return (i + '0');
++			break;
++		case 10 ... 15:
++			return (i - 10 + 'a');
++			break;
++		default:
++			if (net_ratelimit())
++				printk("layer7: Problem in dec2hex\n");
++			return '\0';
++	}
++}
++
++static char * hex_print(unsigned char * s)
++{
++	char * g = kmalloc(strlen(s)*3 + 1, GFP_ATOMIC);
++	int i;
++
++	if(!g) {
++	       if (net_ratelimit())
++			printk(KERN_ERR "layer7: out of memory in hex_print, "
++					"bailing.\n");
++	       return NULL;
++	}
++
++	for(i = 0; i < strlen(s); i++) {
++		g[i*3    ] = dec2hex(s[i]/16);
++		g[i*3 + 1] = dec2hex(s[i]%16);
++		g[i*3 + 2] = ' ';
++	}
++	g[i*3] = '\0';
++
++	return g;
++}
++#endif // DEBUG
++
++/* Use instead of regcomp.  As we expect to be seeing the same regexps over and
++over again, it make sense to cache the results. */
++static regexp * compile_and_cache(const char * regex_string, 
++                                  const char * protocol)
++{
++	struct pattern_cache * node               = first_pattern_cache;
++	struct pattern_cache * last_pattern_cache = first_pattern_cache;
++	struct pattern_cache * tmp;
++	unsigned int len;
++
++	while (node != NULL) {
++		if (!strcmp(node->regex_string, regex_string))
++		return node->pattern;
++
++		last_pattern_cache = node;/* points at the last non-NULL node */
++		node = node->next;
++	}
++
++	/* If we reach the end of the list, then we have not yet cached
++	   the pattern for this regex. Let's do that now.
++	   Be paranoid about running out of memory to avoid list corruption. */
++	tmp = kmalloc(sizeof(struct pattern_cache), GFP_ATOMIC);
++
++	if(!tmp) {
++		if (net_ratelimit())
++			printk(KERN_ERR "layer7: out of memory in "
++					"compile_and_cache, bailing.\n");
++		return NULL;
++	}
++
++	tmp->regex_string  = kmalloc(strlen(regex_string) + 1, GFP_ATOMIC);
++	tmp->pattern       = kmalloc(sizeof(struct regexp),    GFP_ATOMIC);
++	tmp->next = NULL;
++
++	if(!tmp->regex_string || !tmp->pattern) {
++		if (net_ratelimit())
++			printk(KERN_ERR "layer7: out of memory in "
++					"compile_and_cache, bailing.\n");
++		kfree(tmp->regex_string);
++		kfree(tmp->pattern);
++		kfree(tmp);
++		return NULL;
++	}
++
++	/* Ok.  The new node is all ready now. */
++	node = tmp;
++
++	if(first_pattern_cache == NULL) /* list is empty */
++		first_pattern_cache = node; /* make node the beginning */
++	else
++		last_pattern_cache->next = node; /* attach node to the end */
++
++	/* copy the string and compile the regex */
++	len = strlen(regex_string);
++	DPRINTK("About to compile this: \"%s\"\n", regex_string);
++	node->pattern = regcomp((char *)regex_string, &len);
++	if ( !node->pattern ) {
++		if (net_ratelimit())
++			printk(KERN_ERR "layer7: Error compiling regexp "
++					"\"%s\" (%s)\n", 
++					regex_string, protocol);
++		/* pattern is now cached as NULL, so we won't try again. */
++	}
++
++	strcpy(node->regex_string, regex_string);
++	return node->pattern;
++}
++
++static int can_handle(const struct sk_buff *skb)
++{
++	if(!ip_hdr(skb)) /* not IP */
++		return 0;
++	if(ip_hdr(skb)->protocol != IPPROTO_TCP &&
++	   ip_hdr(skb)->protocol != IPPROTO_UDP &&
++	   ip_hdr(skb)->protocol != IPPROTO_ICMP)
++		return 0;
++	return 1;
++}
++
++/* Returns offset the into the skb->data that the application data starts */
++static int app_data_offset(const struct sk_buff *skb)
++{
++	/* In case we are ported somewhere (ebtables?) where ip_hdr(skb)
++	isn't set, this can be gotten from 4*(skb->data[0] & 0x0f) as well. */
++	int ip_hl = 4*ip_hdr(skb)->ihl;
++
++	if( ip_hdr(skb)->protocol == IPPROTO_TCP ) {
++		/* 12 == offset into TCP header for the header length field.
++		Can't get this with skb->h.th->doff because the tcphdr
++		struct doesn't get set when routing (this is confirmed to be
++		true in Netfilter as well as QoS.) */
++		int tcp_hl = 4*(skb->data[ip_hl + 12] >> 4);
++
++		return ip_hl + tcp_hl;
++	} else if( ip_hdr(skb)->protocol == IPPROTO_UDP  ) {
++		return ip_hl + 8; /* UDP header is always 8 bytes */
++	} else if( ip_hdr(skb)->protocol == IPPROTO_ICMP ) {
++		return ip_hl + 8; /* ICMP header is 8 bytes */
++	} else {
++		if (net_ratelimit())
++			printk(KERN_ERR "layer7: tried to handle unknown "
++					"protocol!\n");
++		return ip_hl + 8; /* something reasonable */
++	}
++}
++
++/* handles whether there's a match when we aren't appending data anymore */
++static int match_no_append(struct nf_conn * conntrack, 
++                           struct nf_conn * master_conntrack, 
++                           enum ip_conntrack_info ctinfo,
++                           enum ip_conntrack_info master_ctinfo,
++                           const struct xt_layer7_info * info)
++{
++	/* If we're in here, throw the app data away */
++	if(master_conntrack->layer7.app_data != NULL) {
++
++	#ifdef CONFIG_IP_NF_MATCH_LAYER7_DEBUG
++		if(!master_conntrack->layer7.app_proto) {
++			char * f = 
++			  friendly_print(master_conntrack->layer7.app_data);
++			char * g = 
++			  hex_print(master_conntrack->layer7.app_data);
++			DPRINTK("\nl7-filter gave up after %d bytes "
++				"(%d packets):\n%s\n",
++				strlen(f), total_acct_packets(master_conntrack), f);
++			kfree(f);
++			DPRINTK("In hex: %s\n", g);
++			kfree(g);
++		}
++	#endif
++
++		kfree(master_conntrack->layer7.app_data);
++		master_conntrack->layer7.app_data = NULL; /* don't free again */
++	}
++
++	if(master_conntrack->layer7.app_proto){
++		/* Here child connections set their .app_proto (for /proc) */
++		if(!conntrack->layer7.app_proto) {
++			conntrack->layer7.app_proto = 
++			  kmalloc(strlen(master_conntrack->layer7.app_proto)+1, 
++			    GFP_ATOMIC);
++			if(!conntrack->layer7.app_proto){
++				if (net_ratelimit())
++					printk(KERN_ERR "layer7: out of memory "
++							"in match_no_append, "
++							"bailing.\n");
++				return 1;
++			}
++			strcpy(conntrack->layer7.app_proto, 
++				master_conntrack->layer7.app_proto);
++		}
++
++		return (!strcmp(master_conntrack->layer7.app_proto, 
++				info->protocol));
++	}
++	else {
++		/* If not classified, set to "unknown" to distinguish from
++		connections that are still being tested. */
++		master_conntrack->layer7.app_proto = 
++			kmalloc(strlen("unknown")+1, GFP_ATOMIC);
++		if(!master_conntrack->layer7.app_proto){
++			if (net_ratelimit())
++				printk(KERN_ERR "layer7: out of memory in "
++						"match_no_append, bailing.\n");
++			return 1;
++		}
++		strcpy(master_conntrack->layer7.app_proto, "unknown");
++		return 0;
++	}
++}
++
++/* add the new app data to the conntrack.  Return number of bytes added. */
++static int add_data(struct nf_conn * master_conntrack,
++                    char * app_data, int appdatalen)
++{
++	int length = 0, i;
++	int oldlength = master_conntrack->layer7.app_data_len;
++
++	/* This is a fix for a race condition by Deti Fliegl. However, I'm not 
++	   clear on whether the race condition exists or whether this really 
++	   fixes it.  I might just be being dense... Anyway, if it's not really 
++	   a fix, all it does is waste a very small amount of time. */
++	if(!master_conntrack->layer7.app_data) return 0;
++
++	/* Strip nulls. Make everything lower case (our regex lib doesn't
++	do case insensitivity).  Add it to the end of the current data. */
++	for(i = 0; i < maxdatalen-oldlength-1 &&
++		   i < appdatalen; i++) {
++		if(app_data[i] != '\0') {
++			/* the kernel version of tolower mungs 'upper ascii' */
++			master_conntrack->layer7.app_data[length+oldlength] =
++				isascii(app_data[i])? 
++					tolower(app_data[i]) : app_data[i];
++			length++;
++		}
++	}
++
++	master_conntrack->layer7.app_data[length+oldlength] = '\0';
++	master_conntrack->layer7.app_data_len = length + oldlength;
++
++	return length;
++}
++
++/* taken from drivers/video/modedb.c */
++static int my_atoi(const char *s)
++{
++	int val = 0;
++
++	for (;; s++) {
++		switch (*s) {
++			case '0'...'9':
++			val = 10*val+(*s-'0');
++			break;
++		default:
++			return val;
++		}
++	}
++}
++
++/* write out num_packets to userland. */
++static int layer7_read_proc(char* page, char ** start, off_t off, int count,
++                            int* eof, void * data)
++{
++	if(num_packets > 99 && net_ratelimit())
++		printk(KERN_ERR "layer7: NOT REACHED. num_packets too big\n");
++
++	page[0] = num_packets/10 + '0';
++	page[1] = num_packets%10 + '0';
++	page[2] = '\n';
++	page[3] = '\0';
++
++	*eof=1;
++
++	return 3;
++}
++
++/* Read in num_packets from userland */
++static int layer7_write_proc(struct file* file, const char* buffer,
++                             unsigned long count, void *data)
++{
++	char * foo = kmalloc(count, GFP_ATOMIC);
++
++	if(!foo){
++		if (net_ratelimit())
++			printk(KERN_ERR "layer7: out of memory, bailing. "
++					"num_packets unchanged.\n");
++		return count;
++	}
++
++	if(copy_from_user(foo, buffer, count)) {
++		return -EFAULT;
++	}
++
++
++	num_packets = my_atoi(foo);
++	kfree (foo);
++
++	/* This has an arbitrary limit to make the math easier. I'm lazy.
++	But anyway, 99 is a LOT! If you want more, you're doing it wrong! */
++	if(num_packets > 99) {
++		printk(KERN_WARNING "layer7: num_packets can't be > 99.\n");
++		num_packets = 99;
++	} else if(num_packets < 1) {
++		printk(KERN_WARNING "layer7: num_packets can't be < 1.\n");
++		num_packets = 1;
++	}
++
++	return count;
++}
++
++static bool
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
++match(const struct sk_buff *skbin, const struct xt_match_param *par)
++#else
++match(const struct sk_buff *skbin,
++      const struct net_device *in,
++      const struct net_device *out,
++      const struct xt_match *match,
++      const void *matchinfo,
++      int offset,
++      unsigned int protoff,
++      bool *hotdrop)
++#endif
++{
++	/* sidestep const without getting a compiler warning... */
++	struct sk_buff * skb = (struct sk_buff *)skbin; 
++
++	const struct xt_layer7_info * info = 
++	#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
++		par->matchinfo;
++	#else
++		matchinfo;
++	#endif
++
++	enum ip_conntrack_info master_ctinfo, ctinfo;
++	struct nf_conn *master_conntrack, *conntrack;
++	unsigned char * app_data;
++	unsigned int pattern_result, appdatalen;
++	regexp * comppattern;
++
++	/* Be paranoid/incompetent - lock the entire match function. */
++	spin_lock_bh(&l7_lock);
++
++	if(!can_handle(skb)){
++		DPRINTK("layer7: This is some protocol I can't handle.\n");
++		spin_unlock_bh(&l7_lock);
++		return info->invert;
++	}
++
++	/* Treat parent & all its children together as one connection, except
++	for the purpose of setting conntrack->layer7.app_proto in the actual
++	connection. This makes /proc/net/ip_conntrack more satisfying. */
++	if(!(conntrack = nf_ct_get(skb, &ctinfo)) ||
++	   !(master_conntrack=nf_ct_get(skb,&master_ctinfo))){
++		DPRINTK("layer7: couldn't get conntrack.\n");
++		spin_unlock_bh(&l7_lock);
++		return info->invert;
++	}
++
++	/* Try to get a master conntrack (and its master etc) for FTP, etc. */
++	while (master_ct(master_conntrack) != NULL)
++		master_conntrack = master_ct(master_conntrack);
++
++	/* if we've classified it or seen too many packets */
++	if(total_acct_packets(master_conntrack) > num_packets ||
++	   master_conntrack->layer7.app_proto) {
++
++		pattern_result = match_no_append(conntrack, master_conntrack, 
++						 ctinfo, master_ctinfo, info);
++
++		/* skb->cb[0] == seen. Don't do things twice if there are 
++		multiple l7 rules. I'm not sure that using cb for this purpose 
++		is correct, even though it says "put your private variables 
++		there". But it doesn't look like it is being used for anything
++		else in the skbs that make it here. */
++		skb->cb[0] = 1; /* marking it seen here's probably irrelevant */
++
++		spin_unlock_bh(&l7_lock);
++		return (pattern_result ^ info->invert);
++	}
++
++	if(skb_is_nonlinear(skb)){
++		if(skb_linearize(skb) != 0){
++			if (net_ratelimit())
++				printk(KERN_ERR "layer7: failed to linearize "
++						"packet, bailing.\n");
++			spin_unlock_bh(&l7_lock);
++			return info->invert;
++		}
++	}
++
++	/* now that the skb is linearized, it's safe to set these. */
++	app_data = skb->data + app_data_offset(skb);
++	appdatalen = skb_tail_pointer(skb) - app_data;
++
++	/* the return value gets checked later, when we're ready to use it */
++	comppattern = compile_and_cache(info->pattern, info->protocol);
++
++	/* On the first packet of a connection, allocate space for app data */
++	if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] && 
++	   !master_conntrack->layer7.app_data){
++		master_conntrack->layer7.app_data = 
++			kmalloc(maxdatalen, GFP_ATOMIC);
++		if(!master_conntrack->layer7.app_data){
++			if (net_ratelimit())
++				printk(KERN_ERR "layer7: out of memory in "
++						"match, bailing.\n");
++			spin_unlock_bh(&l7_lock);
++			return info->invert;
++		}
++
++		master_conntrack->layer7.app_data[0] = '\0';
++	}
++
++	/* Can be here, but unallocated, if numpackets is increased near
++	the beginning of a connection */
++	if(master_conntrack->layer7.app_data == NULL){
++		spin_unlock_bh(&l7_lock);
++		return info->invert; /* unmatched */
++	}
++
++	if(!skb->cb[0]){
++		int newbytes;
++		newbytes = add_data(master_conntrack, app_data, appdatalen);
++
++		if(newbytes == 0) { /* didn't add any data */
++			skb->cb[0] = 1;
++			/* Didn't match before, not going to match now */
++			spin_unlock_bh(&l7_lock);
++			return info->invert;
++		}
++	}
++
++	/* If looking for "unknown", then never match.  "Unknown" means that
++	we've given up; we're still trying with these packets. */
++	if(!strcmp(info->protocol, "unknown")) {
++		pattern_result = 0;
++	/* If looking for "unset", then always match. "Unset" means that we
++	haven't yet classified the connection. */
++	} else if(!strcmp(info->protocol, "unset")) {
++		pattern_result = 2;
++		DPRINTK("layer7: matched unset: not yet classified "
++			"(%d/%d packets)\n",
++                        total_acct_packets(master_conntrack), num_packets);
++	/* If the regexp failed to compile, don't bother running it */
++	} else if(comppattern && 
++		  regexec(comppattern, master_conntrack->layer7.app_data)){
++		DPRINTK("layer7: matched %s\n", info->protocol);
++		pattern_result = 1;
++	} else pattern_result = 0;
++
++	if(pattern_result == 1) {
++		master_conntrack->layer7.app_proto = 
++			kmalloc(strlen(info->protocol)+1, GFP_ATOMIC);
++		if(!master_conntrack->layer7.app_proto){
++			if (net_ratelimit())
++				printk(KERN_ERR "layer7: out of memory in "
++						"match, bailing.\n");
++			spin_unlock_bh(&l7_lock);
++			return (pattern_result ^ info->invert);
++		}
++		strcpy(master_conntrack->layer7.app_proto, info->protocol);
++	} else if(pattern_result > 1) { /* cleanup from "unset" */
++		pattern_result = 1;
++	}
++
++	/* mark the packet seen */
++	skb->cb[0] = 1;
++
++	spin_unlock_bh(&l7_lock);
++	return (pattern_result ^ info->invert);
++}
++
++// load nf_conntrack_ipv4
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
++static bool check(const struct xt_mtchk_param *par)
++{
++        if (nf_ct_l3proto_try_module_get(par->match->family) < 0) {
++                printk(KERN_WARNING "can't load conntrack support for "
++                                    "proto=%d\n", par->match->family);
++#else
++static bool check(const char *tablename, const void *inf,
++		 const struct xt_match *match, void *matchinfo,
++		 unsigned int hook_mask)
++{
++        if (nf_ct_l3proto_try_module_get(match->family) < 0) {
++                printk(KERN_WARNING "can't load conntrack support for "
++                                    "proto=%d\n", match->family);
++#endif
++                return 0;
++        }
++	return 1;
++}
++
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
++	static void destroy(const struct xt_mtdtor_param *par)
++	{
++		nf_ct_l3proto_module_put(par->match->family);
++	}
++#else
++	static void destroy(const struct xt_match *match, void *matchinfo)
++	{
++		nf_ct_l3proto_module_put(match->family);
++	}
++#endif
++
++static struct xt_match xt_layer7_match[] __read_mostly = {
++{
++	.name		= "layer7",
++	.family		= AF_INET,
++	.checkentry	= check,
++	.match		= match,
++	.destroy	= destroy,
++	.matchsize	= sizeof(struct xt_layer7_info),
++	.me		= THIS_MODULE
++}
++};
++
++static void layer7_cleanup_proc(void)
++{
++	remove_proc_entry("layer7_numpackets", init_net.proc_net);
++}
++
++/* register the proc file */
++static void layer7_init_proc(void)
++{
++	struct proc_dir_entry* entry;
++	entry = create_proc_entry("layer7_numpackets", 0644, init_net.proc_net);
++	entry->read_proc = layer7_read_proc;
++	entry->write_proc = layer7_write_proc;
++}
++
++static int __init xt_layer7_init(void)
++{
++	need_conntrack();
++
++	layer7_init_proc();
++	if(maxdatalen < 1) {
++		printk(KERN_WARNING "layer7: maxdatalen can't be < 1, "
++			"using 1\n");
++		maxdatalen = 1;
++	}
++	/* This is not a hard limit.  It's just here to prevent people from
++	bringing their slow machines to a grinding halt. */
++	else if(maxdatalen > 65536) {
++		printk(KERN_WARNING "layer7: maxdatalen can't be > 65536, "
++			"using 65536\n");
++		maxdatalen = 65536;
++	}
++	return xt_register_matches(xt_layer7_match,
++				   ARRAY_SIZE(xt_layer7_match));
++}
++
++static void __exit xt_layer7_fini(void)
++{
++	layer7_cleanup_proc();
++	xt_unregister_matches(xt_layer7_match, ARRAY_SIZE(xt_layer7_match));
++}
++
++module_init(xt_layer7_init);
++module_exit(xt_layer7_fini);
+--- /dev/null
++++ b/net/netfilter/regexp/regexp.c
+@@ -0,0 +1,1197 @@
++/*
++ * regcomp and regexec -- regsub and regerror are elsewhere
++ * @(#)regexp.c	1.3 of 18 April 87
++ *
++ *	Copyright (c) 1986 by University of Toronto.
++ *	Written by Henry Spencer.  Not derived from licensed software.
++ *
++ *	Permission is granted to anyone to use this software for any
++ *	purpose on any computer system, and to redistribute it freely,
++ *	subject to the following restrictions:
++ *
++ *	1. The author is not responsible for the consequences of use of
++ *		this software, no matter how awful, even if they arise
++ *		from defects in it.
++ *
++ *	2. The origin of this software must not be misrepresented, either
++ *		by explicit claim or by omission.
++ *
++ *	3. Altered versions must be plainly marked as such, and must not
++ *		be misrepresented as being the original software.
++ *
++ * Beware that some of this code is subtly aware of the way operator
++ * precedence is structured in regular expressions.  Serious changes in
++ * regular-expression syntax might require a total rethink.
++ *
++ * This code was modified by Ethan Sommer to work within the kernel
++ * (it now uses kmalloc etc..)
++ *
++ * Modified slightly by Matthew Strait to use more modern C.
++ */
++
++#include "regexp.h"
++#include "regmagic.h"
++
++/* added by ethan and matt.  Lets it work in both kernel and user space.
++(So iptables can use it, for instance.)  Yea, it goes both ways... */
++#if __KERNEL__
++  #define malloc(foo) kmalloc(foo,GFP_ATOMIC)
++#else
++  #define printk(format,args...) printf(format,##args)
++#endif
++
++void regerror(char * s)
++{
++        printk("<3>Regexp: %s\n", s);
++        /* NOTREACHED */
++}
++
++/*
++ * The "internal use only" fields in regexp.h are present to pass info from
++ * compile to execute that permits the execute phase to run lots faster on
++ * simple cases.  They are:
++ *
++ * regstart	char that must begin a match; '\0' if none obvious
++ * reganch	is the match anchored (at beginning-of-line only)?
++ * regmust	string (pointer into program) that match must include, or NULL
++ * regmlen	length of regmust string
++ *
++ * Regstart and reganch permit very fast decisions on suitable starting points
++ * for a match, cutting down the work a lot.  Regmust permits fast rejection
++ * of lines that cannot possibly match.  The regmust tests are costly enough
++ * that regcomp() supplies a regmust only if the r.e. contains something
++ * potentially expensive (at present, the only such thing detected is * or +
++ * at the start of the r.e., which can involve a lot of backup).  Regmlen is
++ * supplied because the test in regexec() needs it and regcomp() is computing
++ * it anyway.
++ */
++
++/*
++ * Structure for regexp "program".  This is essentially a linear encoding
++ * of a nondeterministic finite-state machine (aka syntax charts or
++ * "railroad normal form" in parsing technology).  Each node is an opcode
++ * plus a "next" pointer, possibly plus an operand.  "Next" pointers of
++ * all nodes except BRANCH implement concatenation; a "next" pointer with
++ * a BRANCH on both ends of it is connecting two alternatives.  (Here we
++ * have one of the subtle syntax dependencies:  an individual BRANCH (as
++ * opposed to a collection of them) is never concatenated with anything
++ * because of operator precedence.)  The operand of some types of node is
++ * a literal string; for others, it is a node leading into a sub-FSM.  In
++ * particular, the operand of a BRANCH node is the first node of the branch.
++ * (NB this is *not* a tree structure:  the tail of the branch connects
++ * to the thing following the set of BRANCHes.)  The opcodes are:
++ */
++
++/* definition	number	opnd?	meaning */
++#define	END	0	/* no	End of program. */
++#define	BOL	1	/* no	Match "" at beginning of line. */
++#define	EOL	2	/* no	Match "" at end of line. */
++#define	ANY	3	/* no	Match any one character. */
++#define	ANYOF	4	/* str	Match any character in this string. */
++#define	ANYBUT	5	/* str	Match any character not in this string. */
++#define	BRANCH	6	/* node	Match this alternative, or the next... */
++#define	BACK	7	/* no	Match "", "next" ptr points backward. */
++#define	EXACTLY	8	/* str	Match this string. */
++#define	NOTHING	9	/* no	Match empty string. */
++#define	STAR	10	/* node	Match this (simple) thing 0 or more times. */
++#define	PLUS	11	/* node	Match this (simple) thing 1 or more times. */
++#define	OPEN	20	/* no	Mark this point in input as start of #n. */
++			/*	OPEN+1 is number 1, etc. */
++#define	CLOSE	30	/* no	Analogous to OPEN. */
++
++/*
++ * Opcode notes:
++ *
++ * BRANCH	The set of branches constituting a single choice are hooked
++ *		together with their "next" pointers, since precedence prevents
++ *		anything being concatenated to any individual branch.  The
++ *		"next" pointer of the last BRANCH in a choice points to the
++ *		thing following the whole choice.  This is also where the
++ *		final "next" pointer of each individual branch points; each
++ *		branch starts with the operand node of a BRANCH node.
++ *
++ * BACK		Normal "next" pointers all implicitly point forward; BACK
++ *		exists to make loop structures possible.
++ *
++ * STAR,PLUS	'?', and complex '*' and '+', are implemented as circular
++ *		BRANCH structures using BACK.  Simple cases (one character
++ *		per match) are implemented with STAR and PLUS for speed
++ *		and to minimize recursive plunges.
++ *
++ * OPEN,CLOSE	...are numbered at compile time.
++ */
++
++/*
++ * A node is one char of opcode followed by two chars of "next" pointer.
++ * "Next" pointers are stored as two 8-bit pieces, high order first.  The
++ * value is a positive offset from the opcode of the node containing it.
++ * An operand, if any, simply follows the node.  (Note that much of the
++ * code generation knows about this implicit relationship.)
++ *
++ * Using two bytes for the "next" pointer is vast overkill for most things,
++ * but allows patterns to get big without disasters.
++ */
++#define	OP(p)	(*(p))
++#define	NEXT(p)	(((*((p)+1)&0377)<<8) + (*((p)+2)&0377))
++#define	OPERAND(p)	((p) + 3)
++
++/*
++ * See regmagic.h for one further detail of program structure.
++ */
++
++
++/*
++ * Utility definitions.
++ */
++#ifndef CHARBITS
++#define	UCHARAT(p)	((int)*(unsigned char *)(p))
++#else
++#define	UCHARAT(p)	((int)*(p)&CHARBITS)
++#endif
++
++#define	FAIL(m)	{ regerror(m); return(NULL); }
++#define	ISMULT(c)	((c) == '*' || (c) == '+' || (c) == '?')
++#define	META	"^$.[()|?+*\\"
++
++/*
++ * Flags to be passed up and down.
++ */
++#define	HASWIDTH	01	/* Known never to match null string. */
++#define	SIMPLE		02	/* Simple enough to be STAR/PLUS operand. */
++#define	SPSTART		04	/* Starts with * or +. */
++#define	WORST		0	/* Worst case. */
++
++/*
++ * Global work variables for regcomp().
++ */
++struct match_globals {
++char *reginput;		/* String-input pointer. */
++char *regbol;		/* Beginning of input, for ^ check. */
++char **regstartp;	/* Pointer to startp array. */
++char **regendp;		/* Ditto for endp. */
++char *regparse;		/* Input-scan pointer. */
++int regnpar;		/* () count. */
++char regdummy;
++char *regcode;		/* Code-emit pointer; &regdummy = don't. */
++long regsize;		/* Code size. */
++};
++
++/*
++ * Forward declarations for regcomp()'s friends.
++ */
++#ifndef STATIC
++#define	STATIC	static
++#endif
++STATIC char *reg(struct match_globals *g, int paren,int *flagp);
++STATIC char *regbranch(struct match_globals *g, int *flagp);
++STATIC char *regpiece(struct match_globals *g, int *flagp);
++STATIC char *regatom(struct match_globals *g, int *flagp);
++STATIC char *regnode(struct match_globals *g, char op);
++STATIC char *regnext(struct match_globals *g, char *p);
++STATIC void regc(struct match_globals *g, char b);
++STATIC void reginsert(struct match_globals *g, char op, char *opnd);
++STATIC void regtail(struct match_globals *g, char *p, char *val);
++STATIC void regoptail(struct match_globals *g, char *p, char *val);
++
++
++__kernel_size_t my_strcspn(const char *s1,const char *s2)
++{
++        char *scan1;
++        char *scan2;
++        int count;
++
++        count = 0;
++        for (scan1 = (char *)s1; *scan1 != '\0'; scan1++) {
++                for (scan2 = (char *)s2; *scan2 != '\0';)       /* ++ moved down. */
++                        if (*scan1 == *scan2++)
++                                return(count);
++                count++;
++        }
++        return(count);
++}
++
++/*
++ - regcomp - compile a regular expression into internal code
++ *
++ * We can't allocate space until we know how big the compiled form will be,
++ * but we can't compile it (and thus know how big it is) until we've got a
++ * place to put the code.  So we cheat:  we compile it twice, once with code
++ * generation turned off and size counting turned on, and once "for real".
++ * This also means that we don't allocate space until we are sure that the
++ * thing really will compile successfully, and we never have to move the
++ * code and thus invalidate pointers into it.  (Note that it has to be in
++ * one piece because free() must be able to free it all.)
++ *
++ * Beware that the optimization-preparation code in here knows about some
++ * of the structure of the compiled regexp.
++ */
++regexp *
++regcomp(char *exp,int *patternsize)
++{
++	register regexp *r;
++	register char *scan;
++	register char *longest;
++	register int len;
++	int flags;
++	struct match_globals g;
++	
++	/* commented out by ethan
++	   extern char *malloc();
++	*/
++
++	if (exp == NULL)
++		FAIL("NULL argument");
++
++	/* First pass: determine size, legality. */
++	g.regparse = exp;
++	g.regnpar = 1;
++	g.regsize = 0L;
++	g.regcode = &g.regdummy;
++	regc(&g, MAGIC);
++	if (reg(&g, 0, &flags) == NULL)
++		return(NULL);
++
++	/* Small enough for pointer-storage convention? */
++	if (g.regsize >= 32767L)		/* Probably could be 65535L. */
++		FAIL("regexp too big");
++
++	/* Allocate space. */
++	*patternsize=sizeof(regexp) + (unsigned)g.regsize;
++	r = (regexp *)malloc(sizeof(regexp) + (unsigned)g.regsize);
++	if (r == NULL)
++		FAIL("out of space");
++
++	/* Second pass: emit code. */
++	g.regparse = exp;
++	g.regnpar = 1;
++	g.regcode = r->program;
++	regc(&g, MAGIC);
++	if (reg(&g, 0, &flags) == NULL)
++		return(NULL);
++
++	/* Dig out information for optimizations. */
++	r->regstart = '\0';	/* Worst-case defaults. */
++	r->reganch = 0;
++	r->regmust = NULL;
++	r->regmlen = 0;
++	scan = r->program+1;			/* First BRANCH. */
++	if (OP(regnext(&g, scan)) == END) {		/* Only one top-level choice. */
++		scan = OPERAND(scan);
++
++		/* Starting-point info. */
++		if (OP(scan) == EXACTLY)
++			r->regstart = *OPERAND(scan);
++		else if (OP(scan) == BOL)
++			r->reganch++;
++
++		/*
++		 * If there's something expensive in the r.e., find the
++		 * longest literal string that must appear and make it the
++		 * regmust.  Resolve ties in favor of later strings, since
++		 * the regstart check works with the beginning of the r.e.
++		 * and avoiding duplication strengthens checking.  Not a
++		 * strong reason, but sufficient in the absence of others.
++		 */
++		if (flags&SPSTART) {
++			longest = NULL;
++			len = 0;
++			for (; scan != NULL; scan = regnext(&g, scan))
++				if (OP(scan) == EXACTLY && strlen(OPERAND(scan)) >= len) {
++					longest = OPERAND(scan);
++					len = strlen(OPERAND(scan));
++				}
++			r->regmust = longest;
++			r->regmlen = len;
++		}
++	}
++
++	return(r);
++}
++
++/*
++ - reg - regular expression, i.e. main body or parenthesized thing
++ *
++ * Caller must absorb opening parenthesis.
++ *
++ * Combining parenthesis handling with the base level of regular expression
++ * is a trifle forced, but the need to tie the tails of the branches to what
++ * follows makes it hard to avoid.
++ */
++static char *
++reg(struct match_globals *g, int paren, int *flagp /* Parenthesized? */ )
++{
++	register char *ret;
++	register char *br;
++	register char *ender;
++	register int parno = 0; /* 0 makes gcc happy */
++	int flags;
++
++	*flagp = HASWIDTH;	/* Tentatively. */
++
++	/* Make an OPEN node, if parenthesized. */
++	if (paren) {
++		if (g->regnpar >= NSUBEXP)
++			FAIL("too many ()");
++		parno = g->regnpar;
++		g->regnpar++;
++		ret = regnode(g, OPEN+parno);
++	} else
++		ret = NULL;
++
++	/* Pick up the branches, linking them together. */
++	br = regbranch(g, &flags);
++	if (br == NULL)
++		return(NULL);
++	if (ret != NULL)
++		regtail(g, ret, br);	/* OPEN -> first. */
++	else
++		ret = br;
++	if (!(flags&HASWIDTH))
++		*flagp &= ~HASWIDTH;
++	*flagp |= flags&SPSTART;
++	while (*g->regparse == '|') {
++		g->regparse++;
++		br = regbranch(g, &flags);
++		if (br == NULL)
++			return(NULL);
++		regtail(g, ret, br);	/* BRANCH -> BRANCH. */
++		if (!(flags&HASWIDTH))
++			*flagp &= ~HASWIDTH;
++		*flagp |= flags&SPSTART;
++	}
++
++	/* Make a closing node, and hook it on the end. */
++	ender = regnode(g, (paren) ? CLOSE+parno : END);	
++	regtail(g, ret, ender);
++
++	/* Hook the tails of the branches to the closing node. */
++	for (br = ret; br != NULL; br = regnext(g, br))
++		regoptail(g, br, ender);
++
++	/* Check for proper termination. */
++	if (paren && *g->regparse++ != ')') {
++		FAIL("unmatched ()");
++	} else if (!paren && *g->regparse != '\0') {
++		if (*g->regparse == ')') {
++			FAIL("unmatched ()");
++		} else
++			FAIL("junk on end");	/* "Can't happen". */
++		/* NOTREACHED */
++	}
++
++	return(ret);
++}
++
++/*
++ - regbranch - one alternative of an | operator
++ *
++ * Implements the concatenation operator.
++ */
++static char *
++regbranch(struct match_globals *g, int *flagp)
++{
++	register char *ret;
++	register char *chain;
++	register char *latest;
++	int flags;
++
++	*flagp = WORST;		/* Tentatively. */
++
++	ret = regnode(g, BRANCH);
++	chain = NULL;
++	while (*g->regparse != '\0' && *g->regparse != '|' && *g->regparse != ')') {
++		latest = regpiece(g, &flags);
++		if (latest == NULL)
++			return(NULL);
++		*flagp |= flags&HASWIDTH;
++		if (chain == NULL)	/* First piece. */
++			*flagp |= flags&SPSTART;
++		else
++			regtail(g, chain, latest);
++		chain = latest;
++	}
++	if (chain == NULL)	/* Loop ran zero times. */
++		(void) regnode(g, NOTHING);
++
++	return(ret);
++}
++
++/*
++ - regpiece - something followed by possible [*+?]
++ *
++ * Note that the branching code sequences used for ? and the general cases
++ * of * and + are somewhat optimized:  they use the same NOTHING node as
++ * both the endmarker for their branch list and the body of the last branch.
++ * It might seem that this node could be dispensed with entirely, but the
++ * endmarker role is not redundant.
++ */
++static char *
++regpiece(struct match_globals *g, int *flagp)
++{
++	register char *ret;
++	register char op;
++	register char *next;
++	int flags;
++
++	ret = regatom(g, &flags);
++	if (ret == NULL)
++		return(NULL);
++
++	op = *g->regparse;
++	if (!ISMULT(op)) {
++		*flagp = flags;
++		return(ret);
++	}
++
++	if (!(flags&HASWIDTH) && op != '?')
++		FAIL("*+ operand could be empty");
++	*flagp = (op != '+') ? (WORST|SPSTART) : (WORST|HASWIDTH);
++
++	if (op == '*' && (flags&SIMPLE))
++		reginsert(g, STAR, ret);
++	else if (op == '*') {
++		/* Emit x* as (x&|), where & means "self". */
++		reginsert(g, BRANCH, ret);			/* Either x */
++		regoptail(g, ret, regnode(g, BACK));		/* and loop */
++		regoptail(g, ret, ret);			/* back */
++		regtail(g, ret, regnode(g, BRANCH));		/* or */
++		regtail(g, ret, regnode(g, NOTHING));		/* null. */
++	} else if (op == '+' && (flags&SIMPLE))
++		reginsert(g, PLUS, ret);
++	else if (op == '+') {
++		/* Emit x+ as x(&|), where & means "self". */
++		next = regnode(g, BRANCH);			/* Either */
++		regtail(g, ret, next);
++		regtail(g, regnode(g, BACK), ret);		/* loop back */
++		regtail(g, next, regnode(g, BRANCH));		/* or */
++		regtail(g, ret, regnode(g, NOTHING));		/* null. */
++	} else if (op == '?') {
++		/* Emit x? as (x|) */
++		reginsert(g, BRANCH, ret);			/* Either x */
++		regtail(g, ret, regnode(g, BRANCH));		/* or */
++		next = regnode(g, NOTHING);		/* null. */
++		regtail(g, ret, next);
++		regoptail(g, ret, next);
++	}
++	g->regparse++;
++	if (ISMULT(*g->regparse))
++		FAIL("nested *?+");
++
++	return(ret);
++}
++
++/*
++ - regatom - the lowest level
++ *
++ * Optimization:  gobbles an entire sequence of ordinary characters so that
++ * it can turn them into a single node, which is smaller to store and
++ * faster to run.  Backslashed characters are exceptions, each becoming a
++ * separate node; the code is simpler that way and it's not worth fixing.
++ */
++static char *
++regatom(struct match_globals *g, int *flagp)
++{
++	register char *ret;
++	int flags;
++
++	*flagp = WORST;		/* Tentatively. */
++
++	switch (*g->regparse++) {
++	case '^':
++		ret = regnode(g, BOL);
++		break;
++	case '$':
++		ret = regnode(g, EOL);
++		break;
++	case '.':
++		ret = regnode(g, ANY);
++		*flagp |= HASWIDTH|SIMPLE;
++		break;
++	case '[': {
++			register int class;
++			register int classend;
++
++			if (*g->regparse == '^') {	/* Complement of range. */
++				ret = regnode(g, ANYBUT);
++				g->regparse++;
++			} else
++				ret = regnode(g, ANYOF);
++			if (*g->regparse == ']' || *g->regparse == '-')
++				regc(g, *g->regparse++);
++			while (*g->regparse != '\0' && *g->regparse != ']') {
++				if (*g->regparse == '-') {
++					g->regparse++;
++					if (*g->regparse == ']' || *g->regparse == '\0')
++						regc(g, '-');
++					else {
++						class = UCHARAT(g->regparse-2)+1;
++						classend = UCHARAT(g->regparse);
++						if (class > classend+1)
++							FAIL("invalid [] range");
++						for (; class <= classend; class++)
++							regc(g, class);
++						g->regparse++;
++					}
++				} else
++					regc(g, *g->regparse++);
++			}
++			regc(g, '\0');
++			if (*g->regparse != ']')
++				FAIL("unmatched []");
++			g->regparse++;
++			*flagp |= HASWIDTH|SIMPLE;
++		}
++		break;
++	case '(':
++		ret = reg(g, 1, &flags);
++		if (ret == NULL)
++			return(NULL);
++		*flagp |= flags&(HASWIDTH|SPSTART);
++		break;
++	case '\0':
++	case '|':
++	case ')':
++		FAIL("internal urp");	/* Supposed to be caught earlier. */
++		break;
++	case '?':
++	case '+':
++	case '*':
++		FAIL("?+* follows nothing");
++		break;
++	case '\\':
++		if (*g->regparse == '\0')
++			FAIL("trailing \\");
++		ret = regnode(g, EXACTLY);
++		regc(g, *g->regparse++);
++		regc(g, '\0');
++		*flagp |= HASWIDTH|SIMPLE;
++		break;
++	default: {
++			register int len;
++			register char ender;
++
++			g->regparse--;
++			len = my_strcspn((const char *)g->regparse, (const char *)META);
++			if (len <= 0)
++				FAIL("internal disaster");
++			ender = *(g->regparse+len);
++			if (len > 1 && ISMULT(ender))
++				len--;		/* Back off clear of ?+* operand. */
++			*flagp |= HASWIDTH;
++			if (len == 1)
++				*flagp |= SIMPLE;
++			ret = regnode(g, EXACTLY);
++			while (len > 0) {
++				regc(g, *g->regparse++);
++				len--;
++			}
++			regc(g, '\0');
++		}
++		break;
++	}
++
++	return(ret);
++}
++
++/*
++ - regnode - emit a node
++ */
++static char *			/* Location. */
++regnode(struct match_globals *g, char op)
++{
++	register char *ret;
++	register char *ptr;
++
++	ret = g->regcode;
++	if (ret == &g->regdummy) {
++		g->regsize += 3;
++		return(ret);
++	}
++
++	ptr = ret;
++	*ptr++ = op;
++	*ptr++ = '\0';		/* Null "next" pointer. */
++	*ptr++ = '\0';
++	g->regcode = ptr;
++
++	return(ret);
++}
++
++/*
++ - regc - emit (if appropriate) a byte of code
++ */
++static void
++regc(struct match_globals *g, char b)
++{
++	if (g->regcode != &g->regdummy)
++		*g->regcode++ = b;
++	else
++		g->regsize++;
++}
++
++/*
++ - reginsert - insert an operator in front of already-emitted operand
++ *
++ * Means relocating the operand.
++ */
++static void
++reginsert(struct match_globals *g, char op, char* opnd)
++{
++	register char *src;
++	register char *dst;
++	register char *place;
++
++	if (g->regcode == &g->regdummy) {
++		g->regsize += 3;
++		return;
++	}
++
++	src = g->regcode;
++	g->regcode += 3;
++	dst = g->regcode;
++	while (src > opnd)
++		*--dst = *--src;
++
++	place = opnd;		/* Op node, where operand used to be. */
++	*place++ = op;
++	*place++ = '\0';
++	*place++ = '\0';
++}
++
++/*
++ - regtail - set the next-pointer at the end of a node chain
++ */
++static void
++regtail(struct match_globals *g, char *p, char *val)
++{
++	register char *scan;
++	register char *temp;
++	register int offset;
++
++	if (p == &g->regdummy)
++		return;
++
++	/* Find last node. */
++	scan = p;
++	for (;;) {
++		temp = regnext(g, scan);
++		if (temp == NULL)
++			break;
++		scan = temp;
++	}
++
++	if (OP(scan) == BACK)
++		offset = scan - val;
++	else
++		offset = val - scan;
++	*(scan+1) = (offset>>8)&0377;
++	*(scan+2) = offset&0377;
++}
++
++/*
++ - regoptail - regtail on operand of first argument; nop if operandless
++ */
++static void
++regoptail(struct match_globals *g, char *p, char *val)
++{
++	/* "Operandless" and "op != BRANCH" are synonymous in practice. */
++	if (p == NULL || p == &g->regdummy || OP(p) != BRANCH)
++		return;
++	regtail(g, OPERAND(p), val);
++}
++
++/*
++ * regexec and friends
++ */
++
++
++/*
++ * Forwards.
++ */
++STATIC int regtry(struct match_globals *g, regexp *prog, char *string);
++STATIC int regmatch(struct match_globals *g, char *prog);
++STATIC int regrepeat(struct match_globals *g, char *p);
++
++#ifdef DEBUG
++int regnarrate = 0;
++void regdump();
++STATIC char *regprop(char *op);
++#endif
++
++/*
++ - regexec - match a regexp against a string
++ */
++int
++regexec(regexp *prog, char *string)
++{
++	register char *s;
++	struct match_globals g;
++
++	/* Be paranoid... */
++	if (prog == NULL || string == NULL) {
++		printk("<3>Regexp: NULL parameter\n");
++		return(0);
++	}
++
++	/* Check validity of program. */
++	if (UCHARAT(prog->program) != MAGIC) {
++		printk("<3>Regexp: corrupted program\n");
++		return(0);
++	}
++
++	/* If there is a "must appear" string, look for it. */
++	if (prog->regmust != NULL) {
++		s = string;
++		while ((s = strchr(s, prog->regmust[0])) != NULL) {
++			if (strncmp(s, prog->regmust, prog->regmlen) == 0)
++				break;	/* Found it. */
++			s++;
++		}
++		if (s == NULL)	/* Not present. */
++			return(0);
++	}
++
++	/* Mark beginning of line for ^ . */
++	g.regbol = string;
++
++	/* Simplest case:  anchored match need be tried only once. */
++	if (prog->reganch)
++		return(regtry(&g, prog, string));
++
++	/* Messy cases:  unanchored match. */
++	s = string;
++	if (prog->regstart != '\0')
++		/* We know what char it must start with. */
++		while ((s = strchr(s, prog->regstart)) != NULL) {
++			if (regtry(&g, prog, s))
++				return(1);
++			s++;
++		}
++	else
++		/* We don't -- general case. */
++		do {
++			if (regtry(&g, prog, s))
++				return(1);
++		} while (*s++ != '\0');
++
++	/* Failure. */
++	return(0);
++}
++
++/*
++ - regtry - try match at specific point
++ */
++static int			/* 0 failure, 1 success */
++regtry(struct match_globals *g, regexp *prog, char *string)
++{
++	register int i;
++	register char **sp;
++	register char **ep;
++
++	g->reginput = string;
++	g->regstartp = prog->startp;
++	g->regendp = prog->endp;
++
++	sp = prog->startp;
++	ep = prog->endp;
++	for (i = NSUBEXP; i > 0; i--) {
++		*sp++ = NULL;
++		*ep++ = NULL;
++	}
++	if (regmatch(g, prog->program + 1)) {
++		prog->startp[0] = string;
++		prog->endp[0] = g->reginput;
++		return(1);
++	} else
++		return(0);
++}
++
++/*
++ - regmatch - main matching routine
++ *
++ * Conceptually the strategy is simple:  check to see whether the current
++ * node matches, call self recursively to see whether the rest matches,
++ * and then act accordingly.  In practice we make some effort to avoid
++ * recursion, in particular by going through "ordinary" nodes (that don't
++ * need to know whether the rest of the match failed) by a loop instead of
++ * by recursion.
++ */
++static int			/* 0 failure, 1 success */
++regmatch(struct match_globals *g, char *prog)
++{
++	register char *scan = prog; /* Current node. */
++	char *next;		    /* Next node. */
++
++#ifdef DEBUG
++	if (scan != NULL && regnarrate)
++		fprintf(stderr, "%s(\n", regprop(scan));
++#endif
++	while (scan != NULL) {
++#ifdef DEBUG
++		if (regnarrate)
++			fprintf(stderr, "%s...\n", regprop(scan));
++#endif
++		next = regnext(g, scan);
++
++		switch (OP(scan)) {
++		case BOL:
++			if (g->reginput != g->regbol)
++				return(0);
++			break;
++		case EOL:
++			if (*g->reginput != '\0')
++				return(0);
++			break;
++		case ANY:
++			if (*g->reginput == '\0')
++				return(0);
++			g->reginput++;
++			break;
++		case EXACTLY: {
++				register int len;
++				register char *opnd;
++
++				opnd = OPERAND(scan);
++				/* Inline the first character, for speed. */
++				if (*opnd != *g->reginput)
++					return(0);
++				len = strlen(opnd);
++				if (len > 1 && strncmp(opnd, g->reginput, len) != 0)
++					return(0);
++				g->reginput += len;
++			}
++			break;
++		case ANYOF:
++			if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) == NULL)
++				return(0);
++			g->reginput++;
++			break;
++		case ANYBUT:
++			if (*g->reginput == '\0' || strchr(OPERAND(scan), *g->reginput) != NULL)
++				return(0);
++			g->reginput++;
++			break;
++		case NOTHING:
++		case BACK:
++			break;
++		case OPEN+1:
++		case OPEN+2:
++		case OPEN+3:
++		case OPEN+4:
++		case OPEN+5:
++		case OPEN+6:
++		case OPEN+7:
++		case OPEN+8:
++		case OPEN+9: {
++				register int no;
++				register char *save;
++
++				no = OP(scan) - OPEN;
++				save = g->reginput;
++
++				if (regmatch(g, next)) {
++					/*
++					 * Don't set startp if some later
++					 * invocation of the same parentheses
++					 * already has.
++					 */
++					if (g->regstartp[no] == NULL)
++						g->regstartp[no] = save;
++					return(1);
++				} else
++					return(0);
++			}
++			break;
++		case CLOSE+1:
++		case CLOSE+2:
++		case CLOSE+3:
++		case CLOSE+4:
++		case CLOSE+5:
++		case CLOSE+6:
++		case CLOSE+7:
++		case CLOSE+8:
++		case CLOSE+9:
++			{
++				register int no;
++				register char *save;
++
++				no = OP(scan) - CLOSE;
++				save = g->reginput;
++
++				if (regmatch(g, next)) {
++					/*
++					 * Don't set endp if some later
++					 * invocation of the same parentheses
++					 * already has.
++					 */
++					if (g->regendp[no] == NULL)
++						g->regendp[no] = save;
++					return(1);
++				} else
++					return(0);
++			}
++			break;
++		case BRANCH: {
++				register char *save;
++
++				if (OP(next) != BRANCH)		/* No choice. */
++					next = OPERAND(scan);	/* Avoid recursion. */
++				else {
++					do {
++						save = g->reginput;
++						if (regmatch(g, OPERAND(scan)))
++							return(1);
++						g->reginput = save;
++						scan = regnext(g, scan);
++					} while (scan != NULL && OP(scan) == BRANCH);
++					return(0);
++					/* NOTREACHED */
++				}
++			}
++			break;
++		case STAR:
++		case PLUS: {
++				register char nextch;
++				register int no;
++				register char *save;
++				register int min;
++
++				/*
++				 * Lookahead to avoid useless match attempts
++				 * when we know what character comes next.
++				 */
++				nextch = '\0';
++				if (OP(next) == EXACTLY)
++					nextch = *OPERAND(next);
++				min = (OP(scan) == STAR) ? 0 : 1;
++				save = g->reginput;
++				no = regrepeat(g, OPERAND(scan));
++				while (no >= min) {
++					/* If it could work, try it. */
++					if (nextch == '\0' || *g->reginput == nextch)
++						if (regmatch(g, next))
++							return(1);
++					/* Couldn't or didn't -- back up. */
++					no--;
++					g->reginput = save + no;
++				}
++				return(0);
++			}
++			break;
++		case END:
++			return(1);	/* Success! */
++			break;
++		default:
++			printk("<3>Regexp: memory corruption\n");
++			return(0);
++			break;
++		}
++
++		scan = next;
++	}
++
++	/*
++	 * We get here only if there's trouble -- normally "case END" is
++	 * the terminating point.
++	 */
++	printk("<3>Regexp: corrupted pointers\n");
++	return(0);
++}
++
++/*
++ - regrepeat - repeatedly match something simple, report how many
++ */
++static int
++regrepeat(struct match_globals *g, char *p)
++{
++	register int count = 0;
++	register char *scan;
++	register char *opnd;
++
++	scan = g->reginput;
++	opnd = OPERAND(p);
++	switch (OP(p)) {
++	case ANY:
++		count = strlen(scan);
++		scan += count;
++		break;
++	case EXACTLY:
++		while (*opnd == *scan) {
++			count++;
++			scan++;
++		}
++		break;
++	case ANYOF:
++		while (*scan != '\0' && strchr(opnd, *scan) != NULL) {
++			count++;
++			scan++;
++		}
++		break;
++	case ANYBUT:
++		while (*scan != '\0' && strchr(opnd, *scan) == NULL) {
++			count++;
++			scan++;
++		}
++		break;
++	default:		/* Oh dear.  Called inappropriately. */
++		printk("<3>Regexp: internal foulup\n");
++		count = 0;	/* Best compromise. */
++		break;
++	}
++	g->reginput = scan;
++
++	return(count);
++}
++
++/*
++ - regnext - dig the "next" pointer out of a node
++ */
++static char*
++regnext(struct match_globals *g, char *p)
++{
++	register int offset;
++
++	if (p == &g->regdummy)
++		return(NULL);
++
++	offset = NEXT(p);
++	if (offset == 0)
++		return(NULL);
++
++	if (OP(p) == BACK)
++		return(p-offset);
++	else
++		return(p+offset);
++}
++
++#ifdef DEBUG
++
++STATIC char *regprop();
++
++/*
++ - regdump - dump a regexp onto stdout in vaguely comprehensible form
++ */
++void
++regdump(regexp *r)
++{
++	register char *s;
++	register char op = EXACTLY;	/* Arbitrary non-END op. */
++	register char *next;
++	/* extern char *strchr(); */
++
++
++	s = r->program + 1;
++	while (op != END) {	/* While that wasn't END last time... */
++		op = OP(s);
++		printf("%2d%s", s-r->program, regprop(s));	/* Where, what. */
++		next = regnext(s);
++		if (next == NULL)		/* Next ptr. */
++			printf("(0)");
++		else
++			printf("(%d)", (s-r->program)+(next-s));
++		s += 3;
++		if (op == ANYOF || op == ANYBUT || op == EXACTLY) {
++			/* Literal string, where present. */
++			while (*s != '\0') {
++				putchar(*s);
++				s++;
++			}
++			s++;
++		}
++		putchar('\n');
++	}
++
++	/* Header fields of interest. */
++	if (r->regstart != '\0')
++		printf("start `%c' ", r->regstart);
++	if (r->reganch)
++		printf("anchored ");
++	if (r->regmust != NULL)
++		printf("must have \"%s\"", r->regmust);
++	printf("\n");
++}
++
++/*
++ - regprop - printable representation of opcode
++ */
++static char *
++regprop(char *op)
++{
++#define BUFLEN 50
++	register char *p;
++	static char buf[BUFLEN];
++
++	strcpy(buf, ":");
++
++	switch (OP(op)) {
++	case BOL:
++		p = "BOL";
++		break;
++	case EOL:
++		p = "EOL";
++		break;
++	case ANY:
++		p = "ANY";
++		break;
++	case ANYOF:
++		p = "ANYOF";
++		break;
++	case ANYBUT:
++		p = "ANYBUT";
++		break;
++	case BRANCH:
++		p = "BRANCH";
++		break;
++	case EXACTLY:
++		p = "EXACTLY";
++		break;
++	case NOTHING:
++		p = "NOTHING";
++		break;
++	case BACK:
++		p = "BACK";
++		break;
++	case END:
++		p = "END";
++		break;
++	case OPEN+1:
++	case OPEN+2:
++	case OPEN+3:
++	case OPEN+4:
++	case OPEN+5:
++	case OPEN+6:
++	case OPEN+7:
++	case OPEN+8:
++	case OPEN+9:
++		snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "OPEN%d", OP(op)-OPEN);
++		p = NULL;
++		break;
++	case CLOSE+1:
++	case CLOSE+2:
++	case CLOSE+3:
++	case CLOSE+4:
++	case CLOSE+5:
++	case CLOSE+6:
++	case CLOSE+7:
++	case CLOSE+8:
++	case CLOSE+9:
++		snprintf(buf+strlen(buf),BUFLEN-strlen(buf), "CLOSE%d", OP(op)-CLOSE);
++		p = NULL;
++		break;
++	case STAR:
++		p = "STAR";
++		break;
++	case PLUS:
++		p = "PLUS";
++		break;
++	default:
++		printk("<3>Regexp: corrupted opcode\n");
++		break;
++	}
++	if (p != NULL)
++		strncat(buf, p, BUFLEN-strlen(buf));
++	return(buf);
++}
++#endif
++
++
+--- /dev/null
++++ b/net/netfilter/regexp/regexp.h
+@@ -0,0 +1,41 @@
++/*
++ * Definitions etc. for regexp(3) routines.
++ *
++ * Caveat:  this is V8 regexp(3) [actually, a reimplementation thereof],
++ * not the System V one.
++ */
++
++#ifndef REGEXP_H
++#define REGEXP_H
++
++
++/*
++http://www.opensource.apple.com/darwinsource/10.3/expect-1/expect/expect.h ,
++which contains a version of this library, says:
++
++ *
++ * NSUBEXP must be at least 10, and no greater than 117 or the parser
++ * will not work properly.
++ *
++
++However, it looks rather like this library is limited to 10.  If you think
++otherwise, let us know.
++*/
++
++#define NSUBEXP  10
++typedef struct regexp {
++	char *startp[NSUBEXP];
++	char *endp[NSUBEXP];
++	char regstart;		/* Internal use only. */
++	char reganch;		/* Internal use only. */
++	char *regmust;		/* Internal use only. */
++	int regmlen;		/* Internal use only. */
++	char program[1];	/* Unwarranted chumminess with compiler. */
++} regexp;
++
++regexp * regcomp(char *exp, int *patternsize);
++int regexec(regexp *prog, char *string);
++void regsub(regexp *prog, char *source, char *dest);
++void regerror(char *s);
++
++#endif
+--- /dev/null
++++ b/net/netfilter/regexp/regmagic.h
+@@ -0,0 +1,5 @@
++/*
++ * The first byte of the regexp internal "program" is actually this magic
++ * number; the start node begins in the second byte.
++ */
++#define	MAGIC	0234
+--- /dev/null
++++ b/net/netfilter/regexp/regsub.c
+@@ -0,0 +1,95 @@
++/*
++ * regsub
++ * @(#)regsub.c	1.3 of 2 April 86
++ *
++ *	Copyright (c) 1986 by University of Toronto.
++ *	Written by Henry Spencer.  Not derived from licensed software.
++ *
++ *	Permission is granted to anyone to use this software for any
++ *	purpose on any computer system, and to redistribute it freely,
++ *	subject to the following restrictions:
++ *
++ *	1. The author is not responsible for the consequences of use of
++ *		this software, no matter how awful, even if they arise
++ *		from defects in it.
++ *
++ *	2. The origin of this software must not be misrepresented, either
++ *		by explicit claim or by omission.
++ *
++ *	3. Altered versions must be plainly marked as such, and must not
++ *		be misrepresented as being the original software.
++ *
++ *
++ * This code was modified by Ethan Sommer to work within the kernel
++ * (it now uses kmalloc etc..)
++ *
++ */
++#include "regexp.h"
++#include "regmagic.h"
++#include <linux/string.h>
++
++
++#ifndef CHARBITS
++#define	UCHARAT(p)	((int)*(unsigned char *)(p))
++#else
++#define	UCHARAT(p)	((int)*(p)&CHARBITS)
++#endif
++
++#if 0
++//void regerror(char * s)
++//{
++//        printk("regexp(3): %s", s);
++//        /* NOTREACHED */
++//}
++#endif
++
++/*
++ - regsub - perform substitutions after a regexp match
++ */
++void
++regsub(regexp * prog, char * source, char * dest)
++{
++	register char *src;
++	register char *dst;
++	register char c;
++	register int no;
++	register int len;
++	
++	/* Not necessary and gcc doesn't like it -MLS */
++	/*extern char *strncpy();*/
++
++	if (prog == NULL || source == NULL || dest == NULL) {
++		regerror("NULL parm to regsub");
++		return;
++	}
++	if (UCHARAT(prog->program) != MAGIC) {
++		regerror("damaged regexp fed to regsub");
++		return;
++	}
++
++	src = source;
++	dst = dest;
++	while ((c = *src++) != '\0') {
++		if (c == '&')
++			no = 0;
++		else if (c == '\\' && '0' <= *src && *src <= '9')
++			no = *src++ - '0';
++		else
++			no = -1;
++
++		if (no < 0) {	/* Ordinary character. */
++			if (c == '\\' && (*src == '\\' || *src == '&'))
++				c = *src++;
++			*dst++ = c;
++		} else if (prog->startp[no] != NULL && prog->endp[no] != NULL) {
++			len = prog->endp[no] - prog->startp[no];
++			(void) strncpy(dst, prog->startp[no], len);
++			dst += len;
++			if (len != 0 && *(dst-1) == '\0') {	/* strncpy hit NUL. */
++				regerror("damaged match string");
++				return;
++			}
++		}
++	}
++	*dst++ = '\0';
++}
+--- a/net/netfilter/nf_conntrack_core.c
++++ b/net/netfilter/nf_conntrack_core.c
+@@ -212,6 +212,14 @@ destroy_conntrack(struct nf_conntrack *n
+ 	 * too. */
+ 	nf_ct_remove_expectations(ct);
+ 
++	#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE)
++	if(ct->layer7.app_proto)
++		kfree(ct->layer7.app_proto);
++	if(ct->layer7.app_data)
++	kfree(ct->layer7.app_data);
++	#endif
++
++
+ 	/* We overload first tuple to link into unconfirmed list. */
+ 	if (!nf_ct_is_confirmed(ct)) {
+ 		BUG_ON(hlist_nulls_unhashed(&ct->tuplehash[IP_CT_DIR_ORIGINAL].hnnode));
+--- a/net/netfilter/nf_conntrack_standalone.c
++++ b/net/netfilter/nf_conntrack_standalone.c
+@@ -200,6 +200,12 @@ static int ct_seq_show(struct seq_file *
+ 		goto release;
+ #endif
+ 
++#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE)
++	if(ct->layer7.app_proto &&
++           seq_printf(s, "l7proto=%s ", ct->layer7.app_proto))
++		return -ENOSPC;
++#endif
++
+ 	if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
+ 		goto release;
+ 
+--- a/include/net/netfilter/nf_conntrack.h
++++ b/include/net/netfilter/nf_conntrack.h
+@@ -116,6 +116,22 @@ struct nf_conn {
+ 	u_int32_t secmark;
+ #endif
+ 
++#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || \
++    defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE)
++	struct {
++		/*
++		 * e.g. "http". NULL before decision. "unknown" after decision
++		 * if no match.
++		 */
++		char *app_proto;
++		/*
++		 * application layer data so far. NULL after match decision.
++		 */
++		char *app_data;
++		unsigned int app_data_len;
++	} layer7;
++#endif
++
+ 	/* Storage reserved for other modules: */
+ 	union nf_conntrack_proto proto;
+ 
+--- /dev/null
++++ b/include/linux/netfilter/xt_layer7.h
+@@ -0,0 +1,13 @@
++#ifndef _XT_LAYER7_H
++#define _XT_LAYER7_H
++
++#define MAX_PATTERN_LEN 8192
++#define MAX_PROTOCOL_LEN 256
++
++struct xt_layer7_info {
++    char protocol[MAX_PROTOCOL_LEN];
++    char pattern[MAX_PATTERN_LEN];
++    u_int8_t invert;
++};
++
++#endif /* _XT_LAYER7_H */
diff --git a/target/linux/generic/patches-2.6.38/101-netfilter_layer7_pktmatch.patch b/target/linux/generic/patches-2.6.38/101-netfilter_layer7_pktmatch.patch
new file mode 100644
index 0000000000..f65e301fd1
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/101-netfilter_layer7_pktmatch.patch
@@ -0,0 +1,108 @@
+--- a/include/linux/netfilter/xt_layer7.h
++++ b/include/linux/netfilter/xt_layer7.h
+@@ -8,6 +8,7 @@ struct xt_layer7_info {
+     char protocol[MAX_PROTOCOL_LEN];
+     char pattern[MAX_PATTERN_LEN];
+     u_int8_t invert;
++    u_int8_t pkt;
+ };
+ 
+ #endif /* _XT_LAYER7_H */
+--- a/net/netfilter/xt_layer7.c
++++ b/net/netfilter/xt_layer7.c
+@@ -314,33 +314,35 @@ static int match_no_append(struct nf_con
+ }
+ 
+ /* add the new app data to the conntrack.  Return number of bytes added. */
+-static int add_data(struct nf_conn * master_conntrack,
+-                    char * app_data, int appdatalen)
++static int add_datastr(char *target, int offset, char *app_data, int len)
+ {
+ 	int length = 0, i;
+-	int oldlength = master_conntrack->layer7.app_data_len;
+-
+-	/* This is a fix for a race condition by Deti Fliegl. However, I'm not 
+-	   clear on whether the race condition exists or whether this really 
+-	   fixes it.  I might just be being dense... Anyway, if it's not really 
+-	   a fix, all it does is waste a very small amount of time. */
+-	if(!master_conntrack->layer7.app_data) return 0;
++	if (!target) return 0;
+ 
+ 	/* Strip nulls. Make everything lower case (our regex lib doesn't
+ 	do case insensitivity).  Add it to the end of the current data. */
+-	for(i = 0; i < maxdatalen-oldlength-1 &&
+-		   i < appdatalen; i++) {
++ 	for(i = 0; i < maxdatalen-offset-1 && i < len; i++) {
+ 		if(app_data[i] != '\0') {
+ 			/* the kernel version of tolower mungs 'upper ascii' */
+-			master_conntrack->layer7.app_data[length+oldlength] =
++			target[length+offset] =
+ 				isascii(app_data[i])? 
+ 					tolower(app_data[i]) : app_data[i];
+ 			length++;
+ 		}
+ 	}
++	target[length+offset] = '\0';
++
++	return length;
++}
++
++/* add the new app data to the conntrack.  Return number of bytes added. */
++static int add_data(struct nf_conn * master_conntrack,
++                    char * app_data, int appdatalen)
++{
++	int length;
+ 
+-	master_conntrack->layer7.app_data[length+oldlength] = '\0';
+-	master_conntrack->layer7.app_data_len = length + oldlength;
++	length = add_datastr(master_conntrack->layer7.app_data, master_conntrack->layer7.app_data_len, app_data, appdatalen);
++	master_conntrack->layer7.app_data_len += length;
+ 
+ 	return length;
+ }
+@@ -438,7 +440,7 @@ match(const struct sk_buff *skbin,
+ 
+ 	enum ip_conntrack_info master_ctinfo, ctinfo;
+ 	struct nf_conn *master_conntrack, *conntrack;
+-	unsigned char * app_data;
++	unsigned char *app_data, *tmp_data;
+ 	unsigned int pattern_result, appdatalen;
+ 	regexp * comppattern;
+ 
+@@ -466,8 +468,8 @@ match(const struct sk_buff *skbin,
+ 		master_conntrack = master_ct(master_conntrack);
+ 
+ 	/* if we've classified it or seen too many packets */
+-	if(total_acct_packets(master_conntrack) > num_packets ||
+-	   master_conntrack->layer7.app_proto) {
++	if(!info->pkt && (total_acct_packets(master_conntrack) > num_packets ||
++	   master_conntrack->layer7.app_proto)) {
+ 
+ 		pattern_result = match_no_append(conntrack, master_conntrack, 
+ 						 ctinfo, master_ctinfo, info);
+@@ -500,6 +502,25 @@ match(const struct sk_buff *skbin,
+ 	/* the return value gets checked later, when we're ready to use it */
+ 	comppattern = compile_and_cache(info->pattern, info->protocol);
+ 
++	if (info->pkt) {
++		tmp_data = kmalloc(maxdatalen, GFP_ATOMIC);
++		if(!tmp_data){
++			if (net_ratelimit())
++				printk(KERN_ERR "layer7: out of memory in match, bailing.\n");
++			return info->invert;
++		}
++
++		tmp_data[0] = '\0';
++		add_datastr(tmp_data, 0, app_data, appdatalen);
++		pattern_result = ((comppattern && regexec(comppattern, tmp_data)) ? 1 : 0);
++
++		kfree(tmp_data);
++		tmp_data = NULL;
++		spin_unlock_bh(&l7_lock);
++
++		return (pattern_result ^ info->invert);
++	}
++
+ 	/* On the first packet of a connection, allocate space for app data */
+ 	if(total_acct_packets(master_conntrack) == 1 && !skb->cb[0] && 
+ 	   !master_conntrack->layer7.app_data){
diff --git a/target/linux/generic/patches-2.6.38/102-netfilter_layer7_match.patch b/target/linux/generic/patches-2.6.38/102-netfilter_layer7_match.patch
new file mode 100644
index 0000000000..b2e48c824f
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/102-netfilter_layer7_match.patch
@@ -0,0 +1,51 @@
+--- a/net/netfilter/xt_layer7.c
++++ b/net/netfilter/xt_layer7.c
+@@ -415,7 +415,9 @@ static int layer7_write_proc(struct file
+ }
+ 
+ static bool
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
++match(const struct sk_buff *skbin, struct xt_action_param *par)
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
+ match(const struct sk_buff *skbin, const struct xt_match_param *par)
+ #else
+ match(const struct sk_buff *skbin,
+@@ -597,14 +599,19 @@ match(const struct sk_buff *skbin,
+ }
+ 
+ // load nf_conntrack_ipv4
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
++static int
++#else
++static bool
++#endif
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
+-static bool check(const struct xt_mtchk_param *par)
++check(const struct xt_mtchk_param *par)
+ {
+         if (nf_ct_l3proto_try_module_get(par->match->family) < 0) {
+                 printk(KERN_WARNING "can't load conntrack support for "
+                                     "proto=%d\n", par->match->family);
+ #else
+-static bool check(const char *tablename, const void *inf,
++check(const char *tablename, const void *inf,
+ 		 const struct xt_match *match, void *matchinfo,
+ 		 unsigned int hook_mask)
+ {
+@@ -612,9 +619,15 @@ static bool check(const char *tablename,
+                 printk(KERN_WARNING "can't load conntrack support for "
+                                     "proto=%d\n", match->family);
+ #endif
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
++		return -EINVAL;
++	}
++	return 0;
++#else
+                 return 0;
+         }
+ 	return 1;
++#endif
+ }
+ 
+ 
diff --git a/target/linux/generic/patches-2.6.38/103-netfilter_layer7_2.6.36_fix.patch b/target/linux/generic/patches-2.6.38/103-netfilter_layer7_2.6.36_fix.patch
new file mode 100644
index 0000000000..1082da5b67
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/103-netfilter_layer7_2.6.36_fix.patch
@@ -0,0 +1,61 @@
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -762,6 +762,27 @@ config NETFILTER_XT_MATCH_IPVS
+ 
+ 	  If unsure, say N.
+ 
++config NETFILTER_XT_MATCH_LAYER7
++	tristate '"layer7" match support'
++	depends on EXPERIMENTAL
++	depends on NETFILTER_XTABLES
++	depends on NETFILTER_ADVANCED
++	depends on NF_CONNTRACK
++	help
++	  Say Y if you want to be able to classify connections (and their
++	  packets) based on regular expression matching of their application
++	  layer data.   This is one way to classify applications such as
++	  peer-to-peer filesharing systems that do not always use the same
++	  port.
++
++	  To compile it as a module, choose M here.  If unsure, say N.
++
++config NETFILTER_XT_MATCH_LAYER7_DEBUG
++	bool 'Layer 7 debugging output'
++	depends on NETFILTER_XT_MATCH_LAYER7
++	help
++	  Say Y to get lots of debugging output.
++
+ config NETFILTER_XT_MATCH_LENGTH
+ 	tristate '"length" match support'
+ 	depends on NETFILTER_ADVANCED
+@@ -948,26 +969,11 @@ config NETFILTER_XT_MATCH_STATE
+ 
+ 	  To compile it as a module, choose M here.  If unsure, say N.
+ 
+-config NETFILTER_XT_MATCH_LAYER7
+-	tristate '"layer7" match support'
+-	depends on NETFILTER_XTABLES
+-	depends on EXPERIMENTAL && (IP_NF_CONNTRACK || NF_CONNTRACK)
+-       depends on NETFILTER_ADVANCED
+-	help
+-	  Say Y if you want to be able to classify connections (and their
+-	  packets) based on regular expression matching of their application
+-	  layer data.   This is one way to classify applications such as
+-	  peer-to-peer filesharing systems that do not always use the same
+-	  port.
+-
+-	  To compile it as a module, choose M here.  If unsure, say N.
+-
+ config NETFILTER_XT_MATCH_LAYER7_DEBUG
+-        bool 'Layer 7 debugging output'
+-        depends on NETFILTER_XT_MATCH_LAYER7
+-        help
+-          Say Y to get lots of debugging output.
+-
++	bool 'Layer 7 debugging output'
++	depends on NETFILTER_XT_MATCH_LAYER7
++	help
++	  Say Y to get lots of debugging output.
+ 
+ config NETFILTER_XT_MATCH_STATISTIC
+ 	tristate '"statistic" match support'
diff --git a/target/linux/generic/patches-2.6.38/150-netfilter_imq.patch b/target/linux/generic/patches-2.6.38/150-netfilter_imq.patch
new file mode 100644
index 0000000000..8853e8922d
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/150-netfilter_imq.patch
@@ -0,0 +1,1342 @@
+--- /dev/null
++++ b/drivers/net/imq.c
+@@ -0,0 +1,638 @@
++/*
++ *             Pseudo-driver for the intermediate queue device.
++ *
++ *             This program is free software; you can redistribute it and/or
++ *             modify it under the terms of the GNU General Public License
++ *             as published by the Free Software Foundation; either version
++ *             2 of the License, or (at your option) any later version.
++ *
++ * Authors:    Patrick McHardy, <kaber@trash.net>
++ *
++ *            The first version was written by Martin Devera, <devik@cdi.cz>
++ *
++ * Credits:    Jan Rafaj <imq2t@cedric.vabo.cz>
++ *              - Update patch to 2.4.21
++ *             Sebastian Strollo <sstrollo@nortelnetworks.com>
++ *              - Fix "Dead-loop on netdevice imq"-issue
++ *             Marcel Sebek <sebek64@post.cz>
++ *              - Update to 2.6.2-rc1
++ *
++ *	       After some time of inactivity there is a group taking care
++ *	       of IMQ again: http://www.linuximq.net
++ *
++ *
++ *	       2004/06/30 - New version of IMQ patch to kernels <=2.6.7
++ *             including the following changes:
++ *
++ *	       - Correction of ipv6 support "+"s issue (Hasso Tepper)
++ *	       - Correction of imq_init_devs() issue that resulted in
++ *	       kernel OOPS unloading IMQ as module (Norbert Buchmuller)
++ *	       - Addition of functionality to choose number of IMQ devices
++ *	       during kernel config (Andre Correa)
++ *	       - Addition of functionality to choose how IMQ hooks on
++ *	       PRE and POSTROUTING (after or before NAT) (Andre Correa)
++ *	       - Cosmetic corrections (Norbert Buchmuller) (Andre Correa)
++ *
++ *
++ *             2005/12/16 - IMQ versions between 2.6.7 and 2.6.13 were
++ *             released with almost no problems. 2.6.14-x was released
++ *             with some important changes: nfcache was removed; After
++ *             some weeks of trouble we figured out that some IMQ fields
++ *             in skb were missing in skbuff.c - skb_clone and copy_skb_header.
++ *             These functions are correctly patched by this new patch version.
++ *
++ *             Thanks for all who helped to figure out all the problems with
++ *             2.6.14.x: Patrick McHardy, Rune Kock, VeNoMouS, Max CtRiX,
++ *             Kevin Shanahan, Richard Lucassen, Valery Dachev (hopefully
++ *             I didn't forget anybody). I apologize again for my lack of time.
++ *
++ *
++ *             2008/06/17 - 2.6.25 - Changed imq.c to use qdisc_run() instead 
++ *             of qdisc_restart() and moved qdisc_run() to tasklet to avoid
++ *             recursive locking. New initialization routines to fix 'rmmod' not
++ *             working anymore. Used code from ifb.c. (Jussi Kivilinna)
++ *
++ *             2008/08/06 - 2.6.26 - (JK)
++ *              - Replaced tasklet with 'netif_schedule()'.
++ *              - Cleaned up and added comments for imq_nf_queue().
++ *
++ *             2009/04/12
++ *              - Add skb_save_cb/skb_restore_cb helper functions for backuping
++ *                control buffer. This is needed because qdisc-layer on kernels
++ *                2.6.27 and newer overwrite control buffer. (Jussi Kivilinna)
++ *              - Add better locking for IMQ device. Hopefully this will solve
++ *                SMP issues. (Jussi Kivilinna)
++ *              - Port to 2.6.27
++ *              - Port to 2.6.28
++ *              - Port to 2.6.29 + fix rmmod not working
++ *
++ *             2009/04/20 - (Jussi Kivilinna)
++ *              - Use netdevice feature flags to avoid extra packet handling
++ *                by core networking layer and possibly increase performance.
++ *
++ *             2009/09/26 - (Jussi Kivilinna)
++ *              - Add imq_nf_reinject_lockless to fix deadlock with
++ *                imq_nf_queue/imq_nf_reinject.
++ *
++ *             2009/12/08 - (Jussi Kivilinna)
++ *              - Port to 2.6.32
++ *              - Add check for skb->nf_queue_entry==NULL in imq_dev_xmit()
++ *              - Also add better error checking for skb->nf_queue_entry usage
++ *
++ *             2010/02/25 - (Jussi Kivilinna)
++ *              - Port to 2.6.33
++ *
++ *             2010/08/12 - (Jussi Kivilinna)
++ *              - Port to 2.6.35
++ *
++ *	       Also, many thanks to pablo Sebastian Greco for making the initial
++ *	       patch and to those who helped the testing.
++ *
++ *             More info at: http://www.linuximq.net/ (Andre Correa)
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/moduleparam.h>
++#include <linux/list.h>
++#include <linux/skbuff.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/rtnetlink.h>
++#include <linux/if_arp.h>
++#include <linux/netfilter.h>
++#include <linux/netfilter_ipv4.h>
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	#include <linux/netfilter_ipv6.h>
++#endif
++#include <linux/imq.h>
++#include <net/pkt_sched.h>
++#include <net/netfilter/nf_queue.h>
++
++static nf_hookfn imq_nf_hook;
++
++static struct nf_hook_ops imq_ingress_ipv4 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET,
++	.hooknum	= NF_INET_PRE_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	.priority	= NF_IP_PRI_MANGLE + 1
++#else
++	.priority	= NF_IP_PRI_NAT_DST + 1
++#endif
++};
++
++static struct nf_hook_ops imq_egress_ipv4 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET,
++	.hooknum	= NF_INET_POST_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
++	.priority	= NF_IP_PRI_LAST
++#else
++	.priority	= NF_IP_PRI_NAT_SRC - 1
++#endif
++};
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++static struct nf_hook_ops imq_ingress_ipv6 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET6,
++	.hooknum	= NF_INET_PRE_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	.priority	= NF_IP6_PRI_MANGLE + 1
++#else
++	.priority	= NF_IP6_PRI_NAT_DST + 1
++#endif
++};
++
++static struct nf_hook_ops imq_egress_ipv6 = {
++	.hook		= imq_nf_hook,
++	.owner		= THIS_MODULE,
++	.pf		= PF_INET6,
++	.hooknum	= NF_INET_POST_ROUTING,
++#if defined(CONFIG_IMQ_BEHAVIOR_AA) || defined(CONFIG_IMQ_BEHAVIOR_BA)
++	.priority	= NF_IP6_PRI_LAST
++#else
++	.priority	= NF_IP6_PRI_NAT_SRC - 1
++#endif
++};
++#endif
++
++#if defined(CONFIG_IMQ_NUM_DEVS)
++static unsigned int numdevs = CONFIG_IMQ_NUM_DEVS;
++#else
++static unsigned int numdevs = IMQ_MAX_DEVS;
++#endif
++
++static DEFINE_SPINLOCK(imq_nf_queue_lock);
++
++static struct net_device *imq_devs_cache[IMQ_MAX_DEVS];
++
++
++static struct net_device_stats *imq_get_stats(struct net_device *dev)
++{
++	return &dev->stats;
++}
++
++/* called for packets kfree'd in qdiscs at places other than enqueue */
++static void imq_skb_destructor(struct sk_buff *skb)
++{
++	struct nf_queue_entry *entry = skb->nf_queue_entry;
++
++	skb->nf_queue_entry = NULL;
++
++	if (entry) {
++		nf_queue_entry_release_refs(entry);
++		kfree(entry);
++	}
++
++	skb_restore_cb(skb); /* kfree backup */
++}
++
++/* locking not needed when called from imq_nf_queue */
++static void imq_nf_reinject_lockless(struct nf_queue_entry *entry,
++						unsigned int verdict)
++{
++	int status;
++
++	if (!entry->next_outfn) {
++		nf_reinject(entry, verdict);
++		return;
++	}
++
++	status = entry->next_outfn(entry, entry->next_queuenum);
++	if (status < 0) {
++		nf_queue_entry_release_refs(entry);
++		kfree_skb(entry->skb);
++		kfree(entry);
++	}
++}
++
++static void imq_nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
++{
++	int status;
++
++	if (!entry->next_outfn) {
++		spin_lock_bh(&imq_nf_queue_lock);
++		nf_reinject(entry, verdict);
++		spin_unlock_bh(&imq_nf_queue_lock);
++		return;
++	}
++
++	rcu_read_lock();
++	local_bh_disable();
++	status = entry->next_outfn(entry, entry->next_queuenum);
++	local_bh_enable();
++	if (status < 0) {
++		nf_queue_entry_release_refs(entry);
++		kfree_skb(entry->skb);
++		kfree(entry);
++	}
++
++	rcu_read_unlock();
++}
++
++static netdev_tx_t imq_dev_xmit(struct sk_buff *skb, struct net_device *dev)
++{
++	struct nf_queue_entry *entry = skb->nf_queue_entry;
++
++	skb->nf_queue_entry = NULL;
++	dev->trans_start = jiffies;
++
++	dev->stats.tx_bytes += skb->len;
++	dev->stats.tx_packets++;
++
++	if (entry == NULL) {
++		/* We don't know what is going on here.. packet is queued for
++		 * imq device, but (probably) not by us.
++		 *
++		 * If this packet was not send here by imq_nf_queue(), then
++		 * skb_save_cb() was not used and skb_free() should not show:
++		 *   WARNING: IMQ: kfree_skb: skb->cb_next:..
++		 * and/or
++		 *   WARNING: IMQ: kfree_skb: skb->nf_queue_entry...
++		 *
++		 * However if this message is shown, then IMQ is somehow broken
++		 * and you should report this to linuximq.net.
++		 */
++
++		/* imq_dev_xmit is black hole that eats all packets, report that
++		 * we eat this packet happily and increase dropped counters.
++		 */
++
++		dev->stats.tx_dropped++;
++		dev_kfree_skb(skb);
++
++		return NETDEV_TX_OK;
++	}
++
++	skb_restore_cb(skb); /* restore skb->cb */
++
++	skb->imq_flags = 0;
++	skb->destructor = NULL;
++
++	imq_nf_reinject(entry, NF_ACCEPT);
++
++	return NETDEV_TX_OK;
++}
++
++static int imq_nf_queue(struct nf_queue_entry *entry, unsigned queue_num)
++{
++	struct net_device *dev;
++	struct sk_buff *skb_orig, *skb, *skb_shared;
++	struct Qdisc *q;
++	struct netdev_queue *txq;
++	int users, index;
++	int retval = -EINVAL;
++
++	index = entry->skb->imq_flags & IMQ_F_IFMASK;
++	if (unlikely(index > numdevs - 1)) {
++		if (net_ratelimit())
++			printk(KERN_WARNING
++			       "IMQ: invalid device specified, highest is %u\n",
++			       numdevs - 1);
++		retval = -EINVAL;
++		goto out;
++	}
++
++	/* check for imq device by index from cache */
++	dev = imq_devs_cache[index];
++	if (unlikely(!dev)) {
++		char buf[8];
++
++		/* get device by name and cache result */
++		snprintf(buf, sizeof(buf), "imq%d", index);
++		dev = dev_get_by_name(&init_net, buf);
++		if (!dev) {
++			/* not found ?!*/
++			BUG();
++			retval = -ENODEV;
++			goto out;
++		}
++
++		imq_devs_cache[index] = dev;
++		dev_put(dev);
++	}
++
++	if (unlikely(!(dev->flags & IFF_UP))) {
++		entry->skb->imq_flags = 0;
++		imq_nf_reinject_lockless(entry, NF_ACCEPT);
++		retval = 0;
++		goto out;
++	}
++	dev->last_rx = jiffies;
++
++	skb = entry->skb;
++	skb_orig = NULL;
++
++	/* skb has owner? => make clone */
++	if (unlikely(skb->destructor)) {
++		skb_orig = skb;
++		skb = skb_clone(skb, GFP_ATOMIC);
++		if (!skb) {
++			retval = -ENOMEM;
++			goto out;
++		}
++		entry->skb = skb;
++	}
++
++	skb->nf_queue_entry = entry;
++
++	dev->stats.rx_bytes += skb->len;
++	dev->stats.rx_packets++;
++
++	txq = dev_pick_tx(dev, skb);
++
++	q = rcu_dereference(txq->qdisc);
++	if (unlikely(!q->enqueue))
++		goto packet_not_eaten_by_imq_dev;
++
++	spin_lock_bh(qdisc_lock(q));
++
++	users = atomic_read(&skb->users);
++
++	skb_shared = skb_get(skb); /* increase reference count by one */
++	skb_save_cb(skb_shared); /* backup skb->cb, as qdisc layer will
++					overwrite it */
++	qdisc_enqueue_root(skb_shared, q); /* might kfree_skb */
++
++	if (likely(atomic_read(&skb_shared->users) == users + 1)) {
++		kfree_skb(skb_shared); /* decrease reference count by one */
++
++		skb->destructor = &imq_skb_destructor;
++
++		/* cloned? */
++		if (skb_orig)
++			kfree_skb(skb_orig); /* free original */
++
++		spin_unlock_bh(qdisc_lock(q));
++
++		/* schedule qdisc dequeue */
++		__netif_schedule(q);
++
++		retval = 0;
++		goto out;
++	} else {
++		skb_restore_cb(skb_shared); /* restore skb->cb */
++		skb->nf_queue_entry = NULL;
++		/* qdisc dropped packet and decreased skb reference count of
++		 * skb, so we don't really want to and try refree as that would
++		 * actually destroy the skb. */
++		spin_unlock_bh(qdisc_lock(q));
++		goto packet_not_eaten_by_imq_dev;
++	}
++
++packet_not_eaten_by_imq_dev:
++	/* cloned? restore original */
++	if (skb_orig) {
++		kfree_skb(skb);
++		entry->skb = skb_orig;
++	}
++	retval = -1;
++out:
++	return retval;
++}
++
++static struct nf_queue_handler nfqh = {
++	.name  = "imq",
++	.outfn = imq_nf_queue,
++};
++
++static unsigned int imq_nf_hook(unsigned int hook, struct sk_buff *pskb,
++				const struct net_device *indev,
++				const struct net_device *outdev,
++				int (*okfn)(struct sk_buff *))
++{
++	if (pskb->imq_flags & IMQ_F_ENQUEUE)
++		return NF_QUEUE;
++
++	return NF_ACCEPT;
++}
++
++static int imq_close(struct net_device *dev)
++{
++	netif_stop_queue(dev);
++	return 0;
++}
++
++static int imq_open(struct net_device *dev)
++{
++	netif_start_queue(dev);
++	return 0;
++}
++
++static const struct net_device_ops imq_netdev_ops = {
++	.ndo_open		= imq_open,
++	.ndo_stop		= imq_close,
++	.ndo_start_xmit		= imq_dev_xmit,
++	.ndo_get_stats		= imq_get_stats,
++};
++
++static void imq_setup(struct net_device *dev)
++{
++	dev->netdev_ops		= &imq_netdev_ops;
++	dev->type               = ARPHRD_VOID;
++	dev->mtu                = 16000;
++	dev->tx_queue_len       = 11000;
++	dev->flags              = IFF_NOARP;
++	dev->features           = NETIF_F_SG | NETIF_F_FRAGLIST |
++				  NETIF_F_GSO | NETIF_F_HW_CSUM |
++				  NETIF_F_HIGHDMA;
++	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;
++}
++
++static int imq_validate(struct nlattr *tb[], struct nlattr *data[])
++{
++	int ret = 0;
++
++	if (tb[IFLA_ADDRESS]) {
++		if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) {
++			ret = -EINVAL;
++			goto end;
++		}
++		if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) {
++			ret = -EADDRNOTAVAIL;
++			goto end;
++		}
++	}
++	return 0;
++end:
++	printk(KERN_WARNING "IMQ: imq_validate failed (%d)\n", ret);
++	return ret;
++}
++
++static struct rtnl_link_ops imq_link_ops __read_mostly = {
++	.kind		= "imq",
++	.priv_size	= 0,
++	.setup		= imq_setup,
++	.validate	= imq_validate,
++};
++
++static int __init imq_init_hooks(void)
++{
++	int err;
++
++	nf_register_queue_imq_handler(&nfqh);
++
++	err = nf_register_hook(&imq_ingress_ipv4);
++	if (err)
++		goto err1;
++
++	err = nf_register_hook(&imq_egress_ipv4);
++	if (err)
++		goto err2;
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	err = nf_register_hook(&imq_ingress_ipv6);
++	if (err)
++		goto err3;
++
++	err = nf_register_hook(&imq_egress_ipv6);
++	if (err)
++		goto err4;
++#endif
++
++	return 0;
++
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++err4:
++	nf_unregister_hook(&imq_ingress_ipv6);
++err3:
++	nf_unregister_hook(&imq_egress_ipv4);
++#endif
++err2:
++	nf_unregister_hook(&imq_ingress_ipv4);
++err1:
++	nf_unregister_queue_imq_handler();
++	return err;
++}
++
++static int __init imq_init_one(int index)
++{
++	struct net_device *dev;
++	int ret;
++
++	dev = alloc_netdev(0, "imq%d", imq_setup);
++	if (!dev)
++		return -ENOMEM;
++
++	ret = dev_alloc_name(dev, dev->name);
++	if (ret < 0)
++		goto fail;
++
++	dev->rtnl_link_ops = &imq_link_ops;
++	ret = register_netdevice(dev);
++	if (ret < 0)
++		goto fail;
++
++	return 0;
++fail:
++	free_netdev(dev);
++	return ret;
++}
++
++static int __init imq_init_devs(void)
++{
++	int err, i;
++
++	if (numdevs < 1 || numdevs > IMQ_MAX_DEVS) {
++		printk(KERN_ERR "IMQ: numdevs has to be betweed 1 and %u\n",
++		       IMQ_MAX_DEVS);
++		return -EINVAL;
++	}
++
++	rtnl_lock();
++	err = __rtnl_link_register(&imq_link_ops);
++
++	for (i = 0; i < numdevs && !err; i++)
++		err = imq_init_one(i);
++
++	if (err) {
++		__rtnl_link_unregister(&imq_link_ops);
++		memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++	}
++	rtnl_unlock();
++
++	return err;
++}
++
++static int __init imq_init_module(void)
++{
++	int err;
++
++#if defined(CONFIG_IMQ_NUM_DEVS)
++	BUILD_BUG_ON(CONFIG_IMQ_NUM_DEVS > 16);
++	BUILD_BUG_ON(CONFIG_IMQ_NUM_DEVS < 2);
++	BUILD_BUG_ON(CONFIG_IMQ_NUM_DEVS - 1 > IMQ_F_IFMASK);
++#endif
++
++	err = imq_init_devs();
++	if (err) {
++		printk(KERN_ERR "IMQ: Error trying imq_init_devs(net)\n");
++		return err;
++	}
++
++	err = imq_init_hooks();
++	if (err) {
++		printk(KERN_ERR "IMQ: Error trying imq_init_hooks()\n");
++		rtnl_link_unregister(&imq_link_ops);
++		memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++		return err;
++	}
++
++	printk(KERN_INFO "IMQ driver loaded successfully.\n");
++
++#if defined(CONFIG_IMQ_BEHAVIOR_BA) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	printk(KERN_INFO "\tHooking IMQ before NAT on PREROUTING.\n");
++#else
++	printk(KERN_INFO "\tHooking IMQ after NAT on PREROUTING.\n");
++#endif
++#if defined(CONFIG_IMQ_BEHAVIOR_AB) || defined(CONFIG_IMQ_BEHAVIOR_BB)
++	printk(KERN_INFO "\tHooking IMQ before NAT on POSTROUTING.\n");
++#else
++	printk(KERN_INFO "\tHooking IMQ after NAT on POSTROUTING.\n");
++#endif
++
++	return 0;
++}
++
++static void __exit imq_unhook(void)
++{
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	nf_unregister_hook(&imq_ingress_ipv6);
++	nf_unregister_hook(&imq_egress_ipv6);
++#endif
++	nf_unregister_hook(&imq_ingress_ipv4);
++	nf_unregister_hook(&imq_egress_ipv4);
++
++	nf_unregister_queue_imq_handler();
++}
++
++static void __exit imq_cleanup_devs(void)
++{
++	rtnl_link_unregister(&imq_link_ops);
++	memset(imq_devs_cache, 0, sizeof(imq_devs_cache));
++}
++
++static void __exit imq_exit_module(void)
++{
++	imq_unhook();
++	imq_cleanup_devs();
++	printk(KERN_INFO "IMQ driver unloaded successfully.\n");
++}
++
++module_init(imq_init_module);
++module_exit(imq_exit_module);
++
++module_param(numdevs, int, 0);
++MODULE_PARM_DESC(numdevs, "number of IMQ devices (how many imq* devices will "
++			"be created)");
++MODULE_AUTHOR("http://www.linuximq.net");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See "
++			"http://www.linuximq.net/ for more information.");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_RTNL_LINK("imq");
++
+--- a/drivers/net/Kconfig
++++ b/drivers/net/Kconfig
+@@ -124,6 +124,129 @@ config EQUALIZER
+ 	  To compile this driver as a module, choose M here: the module
+ 	  will be called eql.  If unsure, say N.
+ 
++config IMQ
++	tristate "IMQ (intermediate queueing device) support"
++	depends on NETDEVICES && NETFILTER
++	---help---
++	  The IMQ device(s) is used as placeholder for QoS queueing
++	  disciplines. Every packet entering/leaving the IP stack can be
++	  directed through the IMQ device where it's enqueued/dequeued to the
++	  attached qdisc. This allows you to treat network devices as classes
++	  and distribute bandwidth among them. Iptables is used to specify
++	  through which IMQ device, if any, packets travel.
++
++	  More information at: http://www.linuximq.net/
++
++	  To compile this driver as a module, choose M here: the module
++	  will be called imq.  If unsure, say N.
++
++choice
++	prompt "IMQ behavior (PRE/POSTROUTING)"
++	depends on IMQ
++	default IMQ_BEHAVIOR_AB
++	help
++
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		IMQ can work in any of the following ways:
++
++		    PREROUTING   |      POSTROUTING
++		-----------------|-------------------
++		#1  After NAT    |      After NAT
++		#2  After NAT    |      Before NAT
++		#3  Before NAT   |      After NAT
++		#4  Before NAT   |      Before NAT
++
++		The default behavior is to hook before NAT on PREROUTING
++		and after NAT on POSTROUTING (#3).
++
++		This settings are specially usefull when trying to use IMQ
++		to shape NATed clients.
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_AA
++	bool "IMQ AA"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   After NAT
++		POSTROUTING:  After NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_AB
++	bool "IMQ AB"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   After NAT
++		POSTROUTING:  Before NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_BA
++	bool "IMQ BA"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   Before NAT
++		POSTROUTING:  After NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++config IMQ_BEHAVIOR_BB
++	bool "IMQ BB"
++	help
++		This settings defines how IMQ behaves in respect to its
++		hooking in PREROUTING and POSTROUTING.
++
++		Choosing this option will make IMQ hook like this:
++
++		PREROUTING:   Before NAT
++		POSTROUTING:  Before NAT
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
++endchoice
++
++config IMQ_NUM_DEVS
++
++	int "Number of IMQ devices"
++	range 2 16
++	depends on IMQ
++	default "16"
++	help
++
++		This settings defines how many IMQ devices will be
++		created.
++
++		The default value is 16.
++
++		More information can be found at: www.linuximq.net
++
++		If not sure leave the default settings alone.
++
+ config TUN
+ 	tristate "Universal TUN/TAP device driver support"
+ 	select CRC32
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -173,6 +173,7 @@ obj-$(CONFIG_SLHC) += slhc.o
+ obj-$(CONFIG_XEN_NETDEV_FRONTEND) += xen-netfront.o
+ 
+ obj-$(CONFIG_DUMMY) += dummy.o
++obj-$(CONFIG_IMQ) += imq.o
+ obj-$(CONFIG_IFB) += ifb.o
+ obj-$(CONFIG_MACVLAN) += macvlan.o
+ obj-$(CONFIG_MACVTAP) += macvtap.o
+--- /dev/null
++++ b/include/linux/imq.h
+@@ -0,0 +1,13 @@
++#ifndef _IMQ_H
++#define _IMQ_H
++
++/* IFMASK (16 device indexes, 0 to 15) and flag(s) fit in 5 bits */
++#define IMQ_F_BITS	5
++
++#define IMQ_F_IFMASK	0x0f
++#define IMQ_F_ENQUEUE	0x10
++
++#define IMQ_MAX_DEVS	(IMQ_F_IFMASK + 1)
++
++#endif /* _IMQ_H */
++
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1374,6 +1374,7 @@ extern int		dev_alloc_name(struct net_de
+ extern int		dev_open(struct net_device *dev);
+ extern int		dev_close(struct net_device *dev);
+ extern void		dev_disable_lro(struct net_device *dev);
++extern struct netdev_queue *dev_pick_tx(struct net_device *dev, struct sk_buff *skb);
+ extern int		dev_queue_xmit(struct sk_buff *skb);
+ extern int		register_netdevice(struct net_device *dev);
+ extern void		unregister_netdevice_queue(struct net_device *dev,
+--- /dev/null
++++ b/include/linux/netfilter/xt_IMQ.h
+@@ -0,0 +1,9 @@
++#ifndef _XT_IMQ_H
++#define _XT_IMQ_H
++
++struct xt_imq_info {
++	unsigned int todev;     /* target imq device */
++};
++
++#endif /* _XT_IMQ_H */
++
+--- /dev/null
++++ b/include/linux/netfilter_ipv4/ipt_IMQ.h
+@@ -0,0 +1,10 @@
++#ifndef _IPT_IMQ_H
++#define _IPT_IMQ_H
++
++/* Backwards compatibility for old userspace */
++#include <linux/netfilter/xt_IMQ.h>
++
++#define ipt_imq_info xt_imq_info
++
++#endif /* _IPT_IMQ_H */
++
+--- /dev/null
++++ b/include/linux/netfilter_ipv6/ip6t_IMQ.h
+@@ -0,0 +1,10 @@
++#ifndef _IP6T_IMQ_H
++#define _IP6T_IMQ_H
++
++/* Backwards compatibility for old userspace */
++#include <linux/netfilter/xt_IMQ.h>
++
++#define ip6t_imq_info xt_imq_info
++
++#endif /* _IP6T_IMQ_H */
++
+--- a/include/linux/skbuff.h
++++ b/include/linux/skbuff.h
+@@ -29,6 +29,9 @@
+ #include <linux/rcupdate.h>
+ #include <linux/dmaengine.h>
+ #include <linux/hrtimer.h>
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++#include <linux/imq.h>
++#endif
+ 
+ /* Don't change this without changing skb_csum_unnecessary! */
+ #define CHECKSUM_NONE 0
+@@ -333,6 +336,9 @@ struct sk_buff {
+ 	 * first. This is owned by whoever has the skb queued ATM.
+ 	 */
+ 	char			cb[48] __aligned(8);
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	void			*cb_next;
++#endif
+ 
+ 	unsigned long		_skb_refdst;
+ #ifdef CONFIG_XFRM
+@@ -371,6 +377,9 @@ struct sk_buff {
+ #ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
+ 	struct sk_buff		*nfct_reasm;
+ #endif
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	struct nf_queue_entry	*nf_queue_entry;
++#endif
+ #ifdef CONFIG_BRIDGE_NETFILTER
+ 	struct nf_bridge_info	*nf_bridge;
+ #endif
+@@ -398,6 +407,10 @@ struct sk_buff {
+ 
+ 	/* 0/13 bit hole */
+ 
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	__u8			imq_flags:IMQ_F_BITS;
++#endif
++
+ #ifdef CONFIG_NET_DMA
+ 	dma_cookie_t		dma_cookie;
+ #endif
+@@ -484,6 +497,12 @@ static inline struct rtable *skb_rtable(
+ 	return (struct rtable *)skb_dst(skb);
+ }
+ 
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++extern int skb_save_cb(struct sk_buff *skb);
++extern int skb_restore_cb(struct sk_buff *skb);
++#endif
++
+ extern void kfree_skb(struct sk_buff *skb);
+ extern void consume_skb(struct sk_buff *skb);
+ extern void	       __kfree_skb(struct sk_buff *skb);
+@@ -2117,6 +2136,10 @@ static inline void __nf_copy(struct sk_b
+ 	dst->nfct_reasm = src->nfct_reasm;
+ 	nf_conntrack_get_reasm(src->nfct_reasm);
+ #endif
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	dst->imq_flags = src->imq_flags;
++	dst->nf_queue_entry = src->nf_queue_entry;
++#endif
+ #ifdef CONFIG_BRIDGE_NETFILTER
+ 	dst->nf_bridge  = src->nf_bridge;
+ 	nf_bridge_get(src->nf_bridge);
+--- a/include/net/netfilter/nf_queue.h
++++ b/include/net/netfilter/nf_queue.h
+@@ -13,6 +13,12 @@ struct nf_queue_entry {
+ 	struct net_device	*indev;
+ 	struct net_device	*outdev;
+ 	int			(*okfn)(struct sk_buff *);
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	int			(*next_outfn)(struct nf_queue_entry *entry,
++					      unsigned int queuenum);
++	unsigned int		next_queuenum;
++#endif
+ };
+ 
+ #define nf_queue_entry_reroute(x) ((void *)x + sizeof(struct nf_queue_entry))
+@@ -30,5 +36,11 @@ extern int nf_unregister_queue_handler(u
+ 				       const struct nf_queue_handler *qh);
+ extern void nf_unregister_queue_handlers(const struct nf_queue_handler *qh);
+ extern void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
++extern void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++extern void nf_register_queue_imq_handler(const struct nf_queue_handler *qh);
++extern void nf_unregister_queue_imq_handler(void);
++#endif
+ 
+ #endif /* _NF_QUEUE_H */
+--- a/net/core/dev.c
++++ b/net/core/dev.c
+@@ -98,6 +98,9 @@
+ #include <net/net_namespace.h>
+ #include <net/sock.h>
+ #include <linux/rtnetlink.h>
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++#include <linux/imq.h>
++#endif
+ #include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
+ #include <linux/stat.h>
+@@ -2068,7 +2071,11 @@ int dev_hard_start_xmit(struct sk_buff *
+ 		if (dev->priv_flags & IFF_XMIT_DST_RELEASE)
+ 			skb_dst_drop(skb);
+ 
+-		if (!list_empty(&ptype_all))
++		if (!list_empty(&ptype_all)
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++			&& !(skb->imq_flags & IMQ_F_ENQUEUE)
++#endif
++		   )
+ 			dev_queue_xmit_nit(skb, dev);
+ 
+ 		skb_orphan_try(skb);
+@@ -2230,8 +2237,7 @@ static inline int get_xps_queue(struct n
+ #endif
+ }
+ 
+-static struct netdev_queue *dev_pick_tx(struct net_device *dev,
+-					struct sk_buff *skb)
++struct netdev_queue *dev_pick_tx(struct net_device *dev, struct sk_buff *skb)
+ {
+ 	int queue_index;
+ 	const struct net_device_ops *ops = dev->netdev_ops;
+@@ -2266,6 +2272,7 @@ static struct netdev_queue *dev_pick_tx(
+ 	skb_set_queue_mapping(skb, queue_index);
+ 	return netdev_get_tx_queue(dev, queue_index);
+ }
++EXPORT_SYMBOL(dev_pick_tx);
+ 
+ static inline int __dev_xmit_skb(struct sk_buff *skb, struct Qdisc *q,
+ 				 struct net_device *dev,
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -72,6 +72,9 @@
+ 
+ static struct kmem_cache *skbuff_head_cache __read_mostly;
+ static struct kmem_cache *skbuff_fclone_cache __read_mostly;
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++static struct kmem_cache *skbuff_cb_store_cache __read_mostly;
++#endif
+ 
+ static void sock_pipe_buf_release(struct pipe_inode_info *pipe,
+ 				  struct pipe_buffer *buf)
+@@ -91,6 +94,83 @@ static int sock_pipe_buf_steal(struct pi
+ 	return 1;
+ }
+ 
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++/* Control buffer save/restore for IMQ devices */
++struct skb_cb_table {
++	void			*cb_next;
++	atomic_t		refcnt;
++	char      		cb[48];
++};
++
++static DEFINE_SPINLOCK(skb_cb_store_lock);
++
++int skb_save_cb(struct sk_buff *skb)
++{
++	struct skb_cb_table *next;
++
++	next = kmem_cache_alloc(skbuff_cb_store_cache, GFP_ATOMIC);
++	if (!next)
++		return -ENOMEM;
++
++	BUILD_BUG_ON(sizeof(skb->cb) != sizeof(next->cb));
++
++	memcpy(next->cb, skb->cb, sizeof(skb->cb));
++	next->cb_next = skb->cb_next;
++
++	atomic_set(&next->refcnt, 1);
++
++	skb->cb_next = next;
++	return 0;
++}
++EXPORT_SYMBOL(skb_save_cb);
++
++int skb_restore_cb(struct sk_buff *skb)
++{
++	struct skb_cb_table *next;
++
++	if (!skb->cb_next)
++		return 0;
++
++	next = skb->cb_next;
++
++	BUILD_BUG_ON(sizeof(skb->cb) != sizeof(next->cb));
++
++	memcpy(skb->cb, next->cb, sizeof(skb->cb));
++	skb->cb_next = next->cb_next;
++
++	spin_lock(&skb_cb_store_lock);
++
++	if (atomic_dec_and_test(&next->refcnt)) {
++		kmem_cache_free(skbuff_cb_store_cache, next);
++	}
++
++	spin_unlock(&skb_cb_store_lock);
++
++	return 0;
++}
++EXPORT_SYMBOL(skb_restore_cb);
++
++static void skb_copy_stored_cb(struct sk_buff *new, const struct sk_buff *__old)
++{
++	struct skb_cb_table *next;
++	struct sk_buff *old;
++
++	if (!__old->cb_next) {
++		new->cb_next = NULL;
++		return;
++	}
++
++	spin_lock(&skb_cb_store_lock);
++
++	old = (struct sk_buff *)__old;
++
++	next = old->cb_next;
++	atomic_inc(&next->refcnt);
++	new->cb_next = next;
++
++	spin_unlock(&skb_cb_store_lock);
++}
++#endif
+ 
+ /* Pipe buffer operations for a socket. */
+ static const struct pipe_buf_operations sock_pipe_buf_ops = {
+@@ -378,6 +458,26 @@ static void skb_release_head_state(struc
+ 		WARN_ON(in_irq());
+ 		skb->destructor(skb);
+ 	}
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	/* This should not happen. When it does, avoid memleak by restoring
++	the chain of cb-backups. */
++	while(skb->cb_next != NULL) {
++		if (net_ratelimit())
++			printk(KERN_WARNING "IMQ: kfree_skb: skb->cb_next: "
++				"%08x\n", (unsigned int)skb->cb_next);
++
++		skb_restore_cb(skb);
++	}
++	/* This should not happen either, nf_queue_entry is nullified in
++	 * imq_dev_xmit(). If we have non-NULL nf_queue_entry then we are
++	 * leaking entry pointers, maybe memory. We don't know if this is
++	 * pointer to already freed memory, or should this be freed.
++	 * If this happens we need to add refcounting, etc for nf_queue_entry.
++	 */
++	if (skb->nf_queue_entry && net_ratelimit())
++		printk(KERN_WARNING
++				"IMQ: kfree_skb: skb->nf_queue_entry != NULL");
++#endif
+ #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+ 	nf_conntrack_put(skb->nfct);
+ #endif
+@@ -516,6 +616,9 @@ static void __copy_skb_header(struct sk_
+ 	new->sp			= secpath_get(old->sp);
+ #endif
+ 	memcpy(new->cb, old->cb, sizeof(old->cb));
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	skb_copy_stored_cb(new, old);
++#endif
+ 	new->csum		= old->csum;
+ 	new->local_df		= old->local_df;
+ 	new->pkt_type		= old->pkt_type;
+@@ -2779,6 +2882,13 @@ void __init skb_init(void)
+ 						0,
+ 						SLAB_HWCACHE_ALIGN|SLAB_PANIC,
+ 						NULL);
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	skbuff_cb_store_cache = kmem_cache_create("skbuff_cb_store_cache",
++						  sizeof(struct skb_cb_table),
++						  0,
++						  SLAB_HWCACHE_ALIGN|SLAB_PANIC,
++						  NULL);
++#endif
+ }
+ 
+ /**
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -455,6 +455,18 @@ config NETFILTER_XT_TARGET_LED
+ 	  For more information on the LEDs available on your system, see
+ 	  Documentation/leds-class.txt
+ 
++config NETFILTER_XT_TARGET_IMQ
++        tristate '"IMQ" target support'
++	depends on NETFILTER_XTABLES
++	depends on IP_NF_MANGLE || IP6_NF_MANGLE
++	select IMQ
++	default m if NETFILTER_ADVANCED=n
++        help
++          This option adds a `IMQ' target which is used to specify if and
++          to which imq device packets should get enqueued/dequeued.
++
++          To compile it as a module, choose M here.  If unsure, say N.
++
+ config NETFILTER_XT_TARGET_MARK
+ 	tristate '"MARK" target support'
+ 	depends on NETFILTER_ADVANCED
+--- a/net/netfilter/Makefile
++++ b/net/netfilter/Makefile
+@@ -51,6 +51,7 @@ obj-$(CONFIG_NETFILTER_XT_TARGET_CONNSEC
+ obj-$(CONFIG_NETFILTER_XT_TARGET_CT) += xt_CT.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_DSCP) += xt_DSCP.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_HL) += xt_HL.o
++obj-$(CONFIG_NETFILTER_XT_TARGET_IMQ) += xt_IMQ.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_NFLOG) += xt_NFLOG.o
+ obj-$(CONFIG_NETFILTER_XT_TARGET_NFQUEUE) += xt_NFQUEUE.o
+--- a/net/netfilter/nf_queue.c
++++ b/net/netfilter/nf_queue.c
+@@ -22,6 +22,26 @@ static const struct nf_queue_handler __r
+ 
+ static DEFINE_MUTEX(queue_handler_mutex);
+ 
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++static const struct nf_queue_handler *queue_imq_handler;
++
++void nf_register_queue_imq_handler(const struct nf_queue_handler *qh)
++{
++	mutex_lock(&queue_handler_mutex);
++	rcu_assign_pointer(queue_imq_handler, qh);
++	mutex_unlock(&queue_handler_mutex);
++}
++EXPORT_SYMBOL(nf_register_queue_imq_handler);
++
++void nf_unregister_queue_imq_handler(void)
++{
++	mutex_lock(&queue_handler_mutex);
++	rcu_assign_pointer(queue_imq_handler, NULL);
++	mutex_unlock(&queue_handler_mutex);
++}
++EXPORT_SYMBOL(nf_unregister_queue_imq_handler);
++#endif
++
+ /* return EBUSY when somebody else is registered, return EEXIST if the
+  * same handler is registered, return 0 in case of success. */
+ int nf_register_queue_handler(u_int8_t pf, const struct nf_queue_handler *qh)
+@@ -82,7 +102,7 @@ void nf_unregister_queue_handlers(const
+ }
+ EXPORT_SYMBOL_GPL(nf_unregister_queue_handlers);
+ 
+-static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
++void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
+ {
+ 	/* Release those devices we held, or Alexey will kill me. */
+ 	if (entry->indev)
+@@ -102,6 +122,7 @@ static void nf_queue_entry_release_refs(
+ 	/* Drop reference to owner of hook which queued us. */
+ 	module_put(entry->elem->owner);
+ }
++EXPORT_SYMBOL_GPL(nf_queue_entry_release_refs);
+ 
+ /*
+  * Any packet that leaves via this function must come back
+@@ -123,12 +144,26 @@ static int __nf_queue(struct sk_buff *sk
+ #endif
+ 	const struct nf_afinfo *afinfo;
+ 	const struct nf_queue_handler *qh;
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	const struct nf_queue_handler *qih = NULL;
++#endif
+ 
+ 	/* QUEUE == DROP if noone is waiting, to be safe. */
+ 	rcu_read_lock();
+ 
+ 	qh = rcu_dereference(queue_handler[pf]);
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
++	if (pf == PF_INET || pf == PF_INET6)
++#else
++	if (pf == PF_INET)
++#endif
++		qih = rcu_dereference(queue_imq_handler);
++
++	if (!qh && !qih)
++#else /* !IMQ */
+ 	if (!qh)
++#endif
+ 		goto err_unlock;
+ 
+ 	afinfo = nf_get_afinfo(pf);
+@@ -147,6 +182,10 @@ static int __nf_queue(struct sk_buff *sk
+ 		.indev	= indev,
+ 		.outdev	= outdev,
+ 		.okfn	= okfn,
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++		.next_outfn = qh ? qh->outfn : NULL,
++		.next_queuenum = queuenum,
++#endif
+ 	};
+ 
+ 	/* If it's going away, ignore hook. */
+@@ -173,8 +212,19 @@ static int __nf_queue(struct sk_buff *sk
+ #endif
+ 	skb_dst_force(skb);
+ 	afinfo->saveroute(skb, entry);
++
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++	if (qih) {
++		status = qih->outfn(entry, queuenum);
++		goto imq_skip_queue;
++	}
++#endif
++
+ 	status = qh->outfn(entry, queuenum);
+ 
++#if defined(CONFIG_IMQ) || defined(CONFIG_IMQ_MODULE)
++imq_skip_queue:
++#endif
+ 	rcu_read_unlock();
+ 
+ 	if (status < 0) {
+--- /dev/null
++++ b/net/netfilter/xt_IMQ.c
+@@ -0,0 +1,73 @@
++/*
++ * This target marks packets to be enqueued to an imq device
++ */
++#include <linux/module.h>
++#include <linux/skbuff.h>
++#include <linux/netfilter/x_tables.h>
++#include <linux/netfilter/xt_IMQ.h>
++#include <linux/imq.h>
++
++static unsigned int imq_target(struct sk_buff *pskb,
++				const struct xt_action_param *par)
++{
++	const struct xt_imq_info *mr = par->targinfo;
++
++	pskb->imq_flags = (mr->todev & IMQ_F_IFMASK) | IMQ_F_ENQUEUE;
++
++	return XT_CONTINUE;
++}
++
++static int imq_checkentry(const struct xt_tgchk_param *par)
++{
++	struct xt_imq_info *mr = par->targinfo;
++
++	if (mr->todev > IMQ_MAX_DEVS - 1) {
++		printk(KERN_WARNING
++		       "IMQ: invalid device specified, highest is %u\n",
++		       IMQ_MAX_DEVS - 1);
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
++static struct xt_target xt_imq_reg[] __read_mostly = {
++	{
++		.name           = "IMQ",
++		.family		= AF_INET,
++		.checkentry     = imq_checkentry,
++		.target         = imq_target,
++		.targetsize	= sizeof(struct xt_imq_info),
++		.table		= "mangle",
++		.me             = THIS_MODULE
++	},
++	{
++		.name           = "IMQ",
++		.family		= AF_INET6,
++		.checkentry     = imq_checkentry,
++		.target         = imq_target,
++		.targetsize	= sizeof(struct xt_imq_info),
++		.table		= "mangle",
++		.me             = THIS_MODULE
++	},
++};
++
++static int __init imq_init(void)
++{
++	return xt_register_targets(xt_imq_reg, ARRAY_SIZE(xt_imq_reg));
++}
++
++static void __exit imq_fini(void)
++{
++	xt_unregister_targets(xt_imq_reg, ARRAY_SIZE(xt_imq_reg));
++}
++
++module_init(imq_init);
++module_exit(imq_fini);
++
++MODULE_AUTHOR("http://www.linuximq.net");
++MODULE_DESCRIPTION("Pseudo-driver for the intermediate queue device. See http://www.linuximq.net/ for more information.");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("ipt_IMQ");
++MODULE_ALIAS("ip6t_IMQ");
++
diff --git a/target/linux/generic/patches-2.6.38/160-netfilter_cisco_794x_iphone.patch b/target/linux/generic/patches-2.6.38/160-netfilter_cisco_794x_iphone.patch
new file mode 100644
index 0000000000..662a499d17
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/160-netfilter_cisco_794x_iphone.patch
@@ -0,0 +1,118 @@
+--- a/include/linux/netfilter/nf_conntrack_sip.h
++++ b/include/linux/netfilter/nf_conntrack_sip.h
+@@ -2,12 +2,15 @@
+ #define __NF_CONNTRACK_SIP_H__
+ #ifdef __KERNEL__
+ 
++#include <linux/types.h>
++
+ #define SIP_PORT	5060
+ #define SIP_TIMEOUT	3600
+ 
+ struct nf_ct_sip_master {
+ 	unsigned int	register_cseq;
+ 	unsigned int	invite_cseq;
++	__be16		forced_dport;
+ };
+ 
+ enum sip_expectation_classes {
+--- a/net/ipv4/netfilter/nf_nat_sip.c
++++ b/net/ipv4/netfilter/nf_nat_sip.c
+@@ -73,6 +73,7 @@ static int map_addr(struct sk_buff *skb,
+ 	enum ip_conntrack_info ctinfo;
+ 	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+ 	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
++	struct nf_conn_help *help = nfct_help(ct);
+ 	char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
+ 	unsigned int buflen;
+ 	__be32 newaddr;
+@@ -85,7 +86,8 @@ static int map_addr(struct sk_buff *skb,
+ 	} else if (ct->tuplehash[dir].tuple.dst.u3.ip == addr->ip &&
+ 		   ct->tuplehash[dir].tuple.dst.u.udp.port == port) {
+ 		newaddr = ct->tuplehash[!dir].tuple.src.u3.ip;
+-		newport = ct->tuplehash[!dir].tuple.src.u.udp.port;
++		newport = help->help.ct_sip_info.forced_dport ? :
++			  ct->tuplehash[!dir].tuple.src.u.udp.port;
+ 	} else
+ 		return 1;
+ 
+@@ -121,6 +123,7 @@ static unsigned int ip_nat_sip(struct sk
+ 	enum ip_conntrack_info ctinfo;
+ 	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+ 	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
++	struct nf_conn_help *help = nfct_help(ct);
+ 	unsigned int coff, matchoff, matchlen;
+ 	enum sip_header_types hdr;
+ 	union nf_inet_addr addr;
+@@ -229,6 +232,20 @@ next:
+ 	    !map_sip_addr(skb, dataoff, dptr, datalen, SIP_HDR_TO))
+ 		return NF_DROP;
+ 
++	/* Mangle destination port for Cisco phones, then fix up checksums */
++	if (dir == IP_CT_DIR_REPLY && help->help.ct_sip_info.forced_dport) {
++		struct udphdr *uh;
++
++		if (!skb_make_writable(skb, skb->len))
++			return NF_DROP;
++
++		uh = (struct udphdr *)(skb->data + ip_hdrlen(skb));
++		uh->dest = help->help.ct_sip_info.forced_dport;
++
++		if (!nf_nat_mangle_udp_packet(skb, ct, ctinfo, 0, 0, NULL, 0))
++			return NF_DROP;
++	}
++
+ 	return NF_ACCEPT;
+ }
+ 
+@@ -280,8 +297,10 @@ static unsigned int ip_nat_sip_expect(st
+ 	enum ip_conntrack_info ctinfo;
+ 	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+ 	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
++	struct nf_conn_help *help = nfct_help(ct);
+ 	__be32 newip;
+ 	u_int16_t port;
++	__be16 srcport;
+ 	char buffer[sizeof("nnn.nnn.nnn.nnn:nnnnn")];
+ 	unsigned buflen;
+ 
+@@ -294,8 +313,9 @@ static unsigned int ip_nat_sip_expect(st
+ 	/* If the signalling port matches the connection's source port in the
+ 	 * original direction, try to use the destination port in the opposite
+ 	 * direction. */
+-	if (exp->tuple.dst.u.udp.port ==
+-	    ct->tuplehash[dir].tuple.src.u.udp.port)
++	srcport = help->help.ct_sip_info.forced_dport ? :
++		  ct->tuplehash[dir].tuple.src.u.udp.port;
++	if (exp->tuple.dst.u.udp.port == srcport)
+ 		port = ntohs(ct->tuplehash[!dir].tuple.dst.u.udp.port);
+ 	else
+ 		port = ntohs(exp->tuple.dst.u.udp.port);
+--- a/net/netfilter/nf_conntrack_sip.c
++++ b/net/netfilter/nf_conntrack_sip.c
+@@ -1363,8 +1363,25 @@ static int process_sip_request(struct sk
+ {
+ 	enum ip_conntrack_info ctinfo;
+ 	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
++	struct nf_conn_help *help = nfct_help(ct);
++	enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+ 	unsigned int matchoff, matchlen;
+ 	unsigned int cseq, i;
++	union nf_inet_addr addr;
++	__be16 port;
++
++	/* Many Cisco IP phones use a high source port for SIP requests, but
++	 * listen for the response on port 5060.  If we are the local
++	 * router for one of these phones, save the port number from the
++	 * Via: header so that nf_nat_sip can redirect the responses to
++	 * the correct port.
++	 */
++	if (ct_sip_parse_header_uri(ct, *dptr, NULL, *datalen,
++				    SIP_HDR_VIA_UDP, NULL, &matchoff,
++				    &matchlen, &addr, &port) > 0 &&
++	    port != ct->tuplehash[dir].tuple.src.u.udp.port &&
++	    nf_inet_addr_cmp(&addr, &ct->tuplehash[dir].tuple.src.u3))
++		help->help.ct_sip_info.forced_dport = port;
+ 
+ 	for (i = 0; i < ARRAY_SIZE(sip_handlers); i++) {
+ 		const struct sip_handler *handler;
diff --git a/target/linux/generic/patches-2.6.38/180-netfilter_depends.patch b/target/linux/generic/patches-2.6.38/180-netfilter_depends.patch
new file mode 100644
index 0000000000..22bf51c3a9
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/180-netfilter_depends.patch
@@ -0,0 +1,18 @@
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -152,7 +152,6 @@ config NF_CONNTRACK_FTP
+ 
+ config NF_CONNTRACK_H323
+ 	tristate "H.323 protocol support"
+-	depends on (IPV6 || IPV6=n)
+ 	depends on NETFILTER_ADVANCED
+ 	help
+ 	  H.323 is a VoIP signalling protocol from ITU-T. As one of the most
+@@ -570,7 +569,6 @@ config NETFILTER_XT_TARGET_SECMARK
+ 
+ config NETFILTER_XT_TARGET_TCPMSS
+ 	tristate '"TCPMSS" target support'
+-	depends on (IPV6 || IPV6=n)
+ 	default m if NETFILTER_ADVANCED=n
+ 	---help---
+ 	  This option adds a `TCPMSS' target, which allows you to alter the
diff --git a/target/linux/generic/patches-2.6.38/190-netfilter_rtsp.patch b/target/linux/generic/patches-2.6.38/190-netfilter_rtsp.patch
new file mode 100644
index 0000000000..7f1a9d80d4
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/190-netfilter_rtsp.patch
@@ -0,0 +1,1366 @@
+--- /dev/null
++++ b/include/linux/netfilter/nf_conntrack_rtsp.h
+@@ -0,0 +1,63 @@
++/*
++ * RTSP extension for IP connection tracking.
++ * (C) 2003 by Tom Marshall <tmarshall at real.com>
++ * based on ip_conntrack_irc.h
++ *
++ *      This program is free software; you can redistribute it and/or
++ *      modify it under the terms of the GNU General Public License
++ *      as published by the Free Software Foundation; either version
++ *      2 of the License, or (at your option) any later version.
++ */
++#ifndef _IP_CONNTRACK_RTSP_H
++#define _IP_CONNTRACK_RTSP_H
++
++//#define IP_NF_RTSP_DEBUG 1
++#define IP_NF_RTSP_VERSION "0.6.21"
++
++#ifdef __KERNEL__
++/* port block types */
++typedef enum {
++    pb_single,  /* client_port=x */
++    pb_range,   /* client_port=x-y */
++    pb_discon   /* client_port=x/y (rtspbis) */
++} portblock_t;
++
++/* We record seq number and length of rtsp headers here, all in host order. */
++
++/*
++ * This structure is per expected connection.  It is a member of struct
++ * ip_conntrack_expect.  The TCP SEQ for the conntrack expect is stored
++ * there and we are expected to only store the length of the data which
++ * needs replaced.  If a packet contains multiple RTSP messages, we create
++ * one expected connection per message.
++ *
++ * We use these variables to mark the entire header block.  This may seem
++ * like overkill, but the nature of RTSP requires it.  A header may appear
++ * multiple times in a message.  We must treat two Transport headers the
++ * same as one Transport header with two entries.
++ */
++struct ip_ct_rtsp_expect
++{
++    u_int32_t   len;        /* length of header block */
++    portblock_t pbtype;     /* Type of port block that was requested */
++    u_int16_t   loport;     /* Port that was requested, low or first */
++    u_int16_t   hiport;     /* Port that was requested, high or second */
++#if 0
++    uint        method;     /* RTSP method */
++    uint        cseq;       /* CSeq from request */
++#endif
++};
++
++extern unsigned int (*nf_nat_rtsp_hook)(struct sk_buff *skb,
++				 enum ip_conntrack_info ctinfo,
++				 unsigned int matchoff, unsigned int matchlen,
++				 struct ip_ct_rtsp_expect *prtspexp,
++				 struct nf_conntrack_expect *exp);
++
++extern void (*nf_nat_rtsp_hook_expectfn)(struct nf_conn *ct, struct nf_conntrack_expect *exp);
++
++#define RTSP_PORT   554
++
++#endif /* __KERNEL__ */
++
++#endif /* _IP_CONNTRACK_RTSP_H */
+--- /dev/null
++++ b/include/linux/netfilter_helpers.h
+@@ -0,0 +1,133 @@
++/*
++ * Helpers for netfiler modules.  This file provides implementations for basic
++ * functions such as strncasecmp(), etc.
++ *
++ * gcc will warn for defined but unused functions, so we only include the
++ * functions requested.  The following macros are used:
++ *   NF_NEED_STRNCASECMP        nf_strncasecmp()
++ *   NF_NEED_STRTOU16           nf_strtou16()
++ *   NF_NEED_STRTOU32           nf_strtou32()
++ */
++#ifndef _NETFILTER_HELPERS_H
++#define _NETFILTER_HELPERS_H
++
++/* Only include these functions for kernel code. */
++#ifdef __KERNEL__
++
++#include <linux/ctype.h>
++#define iseol(c) ( (c) == '\r' || (c) == '\n' )
++
++/*
++ * The standard strncasecmp()
++ */
++#ifdef NF_NEED_STRNCASECMP
++static int
++nf_strncasecmp(const char* s1, const char* s2, u_int32_t len)
++{
++    if (s1 == NULL || s2 == NULL)
++    {
++        if (s1 == NULL && s2 == NULL)
++        {
++            return 0;
++        }
++        return (s1 == NULL) ? -1 : 1;
++    }
++    while (len > 0 && tolower(*s1) == tolower(*s2))
++    {
++        len--;
++        s1++;
++        s2++;
++    }
++    return ( (len == 0) ? 0 : (tolower(*s1) - tolower(*s2)) );
++}
++#endif /* NF_NEED_STRNCASECMP */
++
++/*
++ * Parse a string containing a 16-bit unsigned integer.
++ * Returns the number of chars used, or zero if no number is found.
++ */
++#ifdef NF_NEED_STRTOU16
++static int
++nf_strtou16(const char* pbuf, u_int16_t* pval)
++{
++    int n = 0;
++
++    *pval = 0;
++    while (isdigit(pbuf[n]))
++    {
++        *pval = (*pval * 10) + (pbuf[n] - '0');
++        n++;
++    }
++
++    return n;
++}
++#endif /* NF_NEED_STRTOU16 */
++
++/*
++ * Parse a string containing a 32-bit unsigned integer.
++ * Returns the number of chars used, or zero if no number is found.
++ */
++#ifdef NF_NEED_STRTOU32
++static int
++nf_strtou32(const char* pbuf, u_int32_t* pval)
++{
++    int n = 0;
++
++    *pval = 0;
++    while (pbuf[n] >= '0' && pbuf[n] <= '9')
++    {
++        *pval = (*pval * 10) + (pbuf[n] - '0');
++        n++;
++    }
++
++    return n;
++}
++#endif /* NF_NEED_STRTOU32 */
++
++/*
++ * Given a buffer and length, advance to the next line and mark the current
++ * line.
++ */
++#ifdef NF_NEED_NEXTLINE
++static int
++nf_nextline(char* p, uint len, uint* poff, uint* plineoff, uint* plinelen)
++{
++    uint    off = *poff;
++    uint    physlen = 0;
++
++    if (off >= len)
++    {
++        return 0;
++    }
++
++    while (p[off] != '\n')
++    {
++        if (len-off <= 1)
++        {
++            return 0;
++        }
++
++        physlen++;
++        off++;
++    }
++
++    /* if we saw a crlf, physlen needs adjusted */
++    if (physlen > 0 && p[off] == '\n' && p[off-1] == '\r')
++    {
++        physlen--;
++    }
++
++    /* advance past the newline */
++    off++;
++
++    *plineoff = *poff;
++    *plinelen = physlen;
++    *poff = off;
++
++    return 1;
++}
++#endif /* NF_NEED_NEXTLINE */
++
++#endif /* __KERNEL__ */
++
++#endif /* _NETFILTER_HELPERS_H */
+--- /dev/null
++++ b/include/linux/netfilter_mime.h
+@@ -0,0 +1,89 @@
++/*
++ * MIME functions for netfilter modules.  This file provides implementations
++ * for basic MIME parsing.  MIME headers are used in many protocols, such as
++ * HTTP, RTSP, SIP, etc.
++ *
++ * gcc will warn for defined but unused functions, so we only include the
++ * functions requested.  The following macros are used:
++ *   NF_NEED_MIME_NEXTLINE      nf_mime_nextline()
++ */
++#ifndef _NETFILTER_MIME_H
++#define _NETFILTER_MIME_H
++
++/* Only include these functions for kernel code. */
++#ifdef __KERNEL__
++
++#include <linux/ctype.h>
++
++/*
++ * Given a buffer and length, advance to the next line and mark the current
++ * line.  If the current line is empty, *plinelen will be set to zero.  If
++ * not, it will be set to the actual line length (including CRLF).
++ *
++ * 'line' in this context means logical line (includes LWS continuations).
++ * Returns 1 on success, 0 on failure.
++ */
++#ifdef NF_NEED_MIME_NEXTLINE
++static int
++nf_mime_nextline(char* p, uint len, uint* poff, uint* plineoff, uint* plinelen)
++{
++    uint    off = *poff;
++    uint    physlen = 0;
++    int     is_first_line = 1;
++
++    if (off >= len)
++    {
++        return 0;
++    }
++
++    do
++    {
++        while (p[off] != '\n')
++        {
++            if (len-off <= 1)
++            {
++                return 0;
++            }
++
++            physlen++;
++            off++;
++        }
++
++        /* if we saw a crlf, physlen needs adjusted */
++        if (physlen > 0 && p[off] == '\n' && p[off-1] == '\r')
++        {
++            physlen--;
++        }
++
++        /* advance past the newline */
++        off++;
++
++        /* check for an empty line */
++        if (physlen == 0)
++        {
++            break;
++        }
++
++        /* check for colon on the first physical line */
++        if (is_first_line)
++        {
++            is_first_line = 0;
++            if (memchr(p+(*poff), ':', physlen) == NULL)
++            {
++                return 0;
++            }
++        }
++    }
++    while (p[off] == ' ' || p[off] == '\t');
++
++    *plineoff = *poff;
++    *plinelen = (physlen == 0) ? 0 : (off - *poff);
++    *poff = off;
++
++    return 1;
++}
++#endif /* NF_NEED_MIME_NEXTLINE */
++
++#endif /* __KERNEL__ */
++
++#endif /* _NETFILTER_MIME_H */
+--- a/net/ipv4/netfilter/Makefile
++++ b/net/ipv4/netfilter/Makefile
+@@ -26,6 +26,7 @@ obj-$(CONFIG_NF_NAT_AMANDA) += nf_nat_am
+ obj-$(CONFIG_NF_NAT_FTP) += nf_nat_ftp.o
+ obj-$(CONFIG_NF_NAT_H323) += nf_nat_h323.o
+ obj-$(CONFIG_NF_NAT_IRC) += nf_nat_irc.o
++obj-$(CONFIG_NF_NAT_RTSP) += nf_nat_rtsp.o
+ obj-$(CONFIG_NF_NAT_PPTP) += nf_nat_pptp.o
+ obj-$(CONFIG_NF_NAT_SIP) += nf_nat_sip.o
+ obj-$(CONFIG_NF_NAT_SNMP_BASIC) += nf_nat_snmp_basic.o
+--- a/net/netfilter/Kconfig
++++ b/net/netfilter/Kconfig
+@@ -259,6 +259,16 @@ config NF_CONNTRACK_TFTP
+ 
+ 	  To compile it as a module, choose M here.  If unsure, say N.
+ 
++config NF_CONNTRACK_RTSP
++	tristate "RTSP protocol support"
++	depends on NF_CONNTRACK
++	help
++		Support the RTSP protocol.  This allows UDP transports to be setup
++		properly, including RTP and RDT.
++
++		If you want to compile it as a module, say 'M' here and read
++		Documentation/modules.txt.  If unsure, say 'Y'.
++
+ config NF_CT_NETLINK
+ 	tristate 'Connection tracking netlink interface'
+ 	select NETFILTER_NETLINK
+--- a/net/netfilter/Makefile
++++ b/net/netfilter/Makefile
+@@ -33,6 +33,7 @@ obj-$(CONFIG_NF_CONNTRACK_PPTP) += nf_co
+ obj-$(CONFIG_NF_CONNTRACK_SANE) += nf_conntrack_sane.o
+ obj-$(CONFIG_NF_CONNTRACK_SIP) += nf_conntrack_sip.o
+ obj-$(CONFIG_NF_CONNTRACK_TFTP) += nf_conntrack_tftp.o
++obj-$(CONFIG_NF_CONNTRACK_RTSP) += nf_conntrack_rtsp.o
+ 
+ # transparent proxy support
+ obj-$(CONFIG_NETFILTER_TPROXY) += nf_tproxy_core.o
+--- a/net/ipv4/netfilter/Kconfig
++++ b/net/ipv4/netfilter/Kconfig
+@@ -257,6 +257,11 @@ config NF_NAT_IRC
+ 	depends on NF_CONNTRACK && NF_NAT
+ 	default NF_NAT && NF_CONNTRACK_IRC
+ 
++config NF_NAT_RTSP
++	tristate
++ 	depends on IP_NF_IPTABLES && NF_CONNTRACK && NF_NAT
++ 	default NF_NAT && NF_CONNTRACK_RTSP
++
+ config NF_NAT_TFTP
+ 	tristate
+ 	depends on NF_CONNTRACK && NF_NAT
+--- /dev/null
++++ b/net/netfilter/nf_conntrack_rtsp.c
+@@ -0,0 +1,517 @@
++/*
++ * RTSP extension for IP connection tracking
++ * (C) 2003 by Tom Marshall <tmarshall at real.com>
++ * based on ip_conntrack_irc.c
++ *
++ *      This program is free software; you can redistribute it and/or
++ *      modify it under the terms of the GNU General Public License
++ *      as published by the Free Software Foundation; either version
++ *      2 of the License, or (at your option) any later version.
++ *
++ * Module load syntax:
++ *   insmod nf_conntrack_rtsp.o ports=port1,port2,...port<MAX_PORTS>
++ *                              max_outstanding=n setup_timeout=secs
++ *
++ * If no ports are specified, the default will be port 554.
++ *
++ * With max_outstanding you can define the maximum number of not yet
++ * answered SETUP requests per RTSP session (default 8).
++ * With setup_timeout you can specify how long the system waits for
++ * an expected data channel (default 300 seconds).
++ *
++ * 2005-02-13: Harald Welte <laforge at netfilter.org>
++ * 	- port to 2.6
++ * 	- update to recent post-2.6.11 api changes
++ * 2006-09-14: Steven Van Acker <deepstar at singularity.be>
++ *      - removed calls to NAT code from conntrack helper: NAT no longer needed to use rtsp-conntrack
++ * 2007-04-18: Michael Guntsche <mike at it-loops.com>
++ * 			- Port to new NF API
++ */
++
++#include <linux/module.h>
++#include <linux/netfilter.h>
++#include <linux/ip.h>
++#include <linux/inet.h>
++#include <net/tcp.h>
++
++#include <net/netfilter/nf_conntrack.h>
++#include <net/netfilter/nf_conntrack_expect.h>
++#include <net/netfilter/nf_conntrack_helper.h>
++#include <linux/netfilter/nf_conntrack_rtsp.h>
++
++#define NF_NEED_STRNCASECMP
++#define NF_NEED_STRTOU16
++#define NF_NEED_STRTOU32
++#define NF_NEED_NEXTLINE
++#include <linux/netfilter_helpers.h>
++#define NF_NEED_MIME_NEXTLINE
++#include <linux/netfilter_mime.h>
++
++#include <linux/ctype.h>
++#define MAX_SIMUL_SETUP 8 /* XXX: use max_outstanding */
++#define INFOP(fmt, args...) printk(KERN_INFO "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args)
++#if 0
++#define DEBUGP(fmt, args...) printk(KERN_DEBUG "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args)
++#else
++#define DEBUGP(fmt, args...)
++#endif
++
++#define MAX_PORTS 8
++static int ports[MAX_PORTS];
++static int num_ports = 0;
++static int max_outstanding = 8;
++static unsigned int setup_timeout = 300;
++
++MODULE_AUTHOR("Tom Marshall <tmarshall at real.com>");
++MODULE_DESCRIPTION("RTSP connection tracking module");
++MODULE_LICENSE("GPL");
++module_param_array(ports, int, &num_ports, 0400);
++MODULE_PARM_DESC(ports, "port numbers of RTSP servers");
++module_param(max_outstanding, int, 0400);
++MODULE_PARM_DESC(max_outstanding, "max number of outstanding SETUP requests per RTSP session");
++module_param(setup_timeout, int, 0400);
++MODULE_PARM_DESC(setup_timeout, "timeout on for unestablished data channels");
++
++static char *rtsp_buffer;
++static DEFINE_SPINLOCK(rtsp_buffer_lock);
++
++unsigned int (*nf_nat_rtsp_hook)(struct sk_buff *skb,
++				 enum ip_conntrack_info ctinfo,
++				 unsigned int matchoff, unsigned int matchlen,struct ip_ct_rtsp_expect* prtspexp,
++				 struct nf_conntrack_expect *exp);
++void (*nf_nat_rtsp_hook_expectfn)(struct nf_conn *ct, struct nf_conntrack_expect *exp);
++
++EXPORT_SYMBOL_GPL(nf_nat_rtsp_hook);
++
++/*
++ * Max mappings we will allow for one RTSP connection (for RTP, the number
++ * of allocated ports is twice this value).  Note that SMIL burns a lot of
++ * ports so keep this reasonably high.  If this is too low, you will see a
++ * lot of "no free client map entries" messages.
++ */
++#define MAX_PORT_MAPS 16
++
++/*** default port list was here in the masq code: 554, 3030, 4040 ***/
++
++#define SKIP_WSPACE(ptr,len,off) while(off < len && isspace(*(ptr+off))) { off++; }
++
++/*
++ * Parse an RTSP packet.
++ *
++ * Returns zero if parsing failed.
++ *
++ * Parameters:
++ *  IN      ptcp        tcp data pointer
++ *  IN      tcplen      tcp data len
++ *  IN/OUT  ptcpoff     points to current tcp offset
++ *  OUT     phdrsoff    set to offset of rtsp headers
++ *  OUT     phdrslen    set to length of rtsp headers
++ *  OUT     pcseqoff    set to offset of CSeq header
++ *  OUT     pcseqlen    set to length of CSeq header
++ */
++static int
++rtsp_parse_message(char* ptcp, uint tcplen, uint* ptcpoff,
++                   uint* phdrsoff, uint* phdrslen,
++                   uint* pcseqoff, uint* pcseqlen,
++                   uint* transoff, uint* translen)
++{
++	uint    entitylen = 0;
++	uint    lineoff;
++	uint    linelen;
++
++	if (!nf_nextline(ptcp, tcplen, ptcpoff, &lineoff, &linelen))
++		return 0;
++
++	*phdrsoff = *ptcpoff;
++	while (nf_mime_nextline(ptcp, tcplen, ptcpoff, &lineoff, &linelen)) {
++		if (linelen == 0) {
++			if (entitylen > 0)
++				*ptcpoff += min(entitylen, tcplen - *ptcpoff);
++			break;
++		}
++		if (lineoff+linelen > tcplen) {
++			INFOP("!! overrun !!\n");
++			break;
++		}
++
++		if (nf_strncasecmp(ptcp+lineoff, "CSeq:", 5) == 0) {
++			*pcseqoff = lineoff;
++			*pcseqlen = linelen;
++		}
++
++		if (nf_strncasecmp(ptcp+lineoff, "Transport:", 10) == 0) {
++			*transoff = lineoff;
++			*translen = linelen;
++		}
++
++		if (nf_strncasecmp(ptcp+lineoff, "Content-Length:", 15) == 0) {
++			uint off = lineoff+15;
++			SKIP_WSPACE(ptcp+lineoff, linelen, off);
++			nf_strtou32(ptcp+off, &entitylen);
++		}
++	}
++	*phdrslen = (*ptcpoff) - (*phdrsoff);
++
++	return 1;
++}
++
++/*
++ * Find lo/hi client ports (if any) in transport header
++ * In:
++ *   ptcp, tcplen = packet
++ *   tranoff, tranlen = buffer to search
++ *
++ * Out:
++ *   pport_lo, pport_hi = lo/hi ports (host endian)
++ *
++ * Returns nonzero if any client ports found
++ *
++ * Note: it is valid (and expected) for the client to request multiple
++ * transports, so we need to parse the entire line.
++ */
++static int
++rtsp_parse_transport(char* ptran, uint tranlen,
++                     struct ip_ct_rtsp_expect* prtspexp)
++{
++	int     rc = 0;
++	uint    off = 0;
++
++	if (tranlen < 10 || !iseol(ptran[tranlen-1]) ||
++	    nf_strncasecmp(ptran, "Transport:", 10) != 0) {
++		INFOP("sanity check failed\n");
++		return 0;
++	}
++
++	DEBUGP("tran='%.*s'\n", (int)tranlen, ptran);
++	off += 10;
++	SKIP_WSPACE(ptran, tranlen, off);
++
++	/* Transport: tran;field;field=val,tran;field;field=val,... */
++	while (off < tranlen) {
++		const char* pparamend;
++		uint        nextparamoff;
++
++		pparamend = memchr(ptran+off, ',', tranlen-off);
++		pparamend = (pparamend == NULL) ? ptran+tranlen : pparamend+1;
++		nextparamoff = pparamend-ptran;
++
++		while (off < nextparamoff) {
++			const char* pfieldend;
++			uint        nextfieldoff;
++
++			pfieldend = memchr(ptran+off, ';', nextparamoff-off);
++			nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1;
++
++			if (strncmp(ptran+off, "client_port=", 12) == 0) {
++				u_int16_t   port;
++				uint        numlen;
++
++				off += 12;
++				numlen = nf_strtou16(ptran+off, &port);
++				off += numlen;
++				if (prtspexp->loport != 0 && prtspexp->loport != port)
++					DEBUGP("multiple ports found, port %hu ignored\n", port);
++				else {
++					DEBUGP("lo port found : %hu\n", port);
++					prtspexp->loport = prtspexp->hiport = port;
++					if (ptran[off] == '-') {
++						off++;
++						numlen = nf_strtou16(ptran+off, &port);
++						off += numlen;
++						prtspexp->pbtype = pb_range;
++						prtspexp->hiport = port;
++
++						// If we have a range, assume rtp:
++						// loport must be even, hiport must be loport+1
++						if ((prtspexp->loport & 0x0001) != 0 ||
++						    prtspexp->hiport != prtspexp->loport+1) {
++							DEBUGP("incorrect range: %hu-%hu, correcting\n",
++							       prtspexp->loport, prtspexp->hiport);
++							prtspexp->loport &= 0xfffe;
++							prtspexp->hiport = prtspexp->loport+1;
++						}
++					} else if (ptran[off] == '/') {
++						off++;
++						numlen = nf_strtou16(ptran+off, &port);
++						off += numlen;
++						prtspexp->pbtype = pb_discon;
++						prtspexp->hiport = port;
++					}
++					rc = 1;
++				}
++			}
++
++			/*
++			 * Note we don't look for the destination parameter here.
++			 * If we are using NAT, the NAT module will handle it.  If not,
++			 * and the client is sending packets elsewhere, the expectation
++			 * will quietly time out.
++			 */
++
++			off = nextfieldoff;
++		}
++
++		off = nextparamoff;
++	}
++
++	return rc;
++}
++
++void expected(struct nf_conn *ct, struct nf_conntrack_expect *exp)
++{
++    if(nf_nat_rtsp_hook_expectfn) {
++        nf_nat_rtsp_hook_expectfn(ct,exp);
++    }
++}
++
++/*** conntrack functions ***/
++
++/* outbound packet: client->server */
++
++static inline int
++help_out(struct sk_buff *skb, unsigned char *rb_ptr, unsigned int datalen,
++                struct nf_conn *ct, enum ip_conntrack_info ctinfo)
++{
++	struct ip_ct_rtsp_expect expinfo;
++
++	int dir = CTINFO2DIR(ctinfo);   /* = IP_CT_DIR_ORIGINAL */
++	//struct  tcphdr* tcph = (void*)iph + iph->ihl * 4;
++	//uint    tcplen = pktlen - iph->ihl * 4;
++	char*   pdata = rb_ptr;
++	//uint    datalen = tcplen - tcph->doff * 4;
++	uint    dataoff = 0;
++	int ret = NF_ACCEPT;
++
++	struct nf_conntrack_expect *exp;
++
++	__be16 be_loport;
++
++	memset(&expinfo, 0, sizeof(expinfo));
++
++	while (dataoff < datalen) {
++		uint    cmdoff = dataoff;
++		uint    hdrsoff = 0;
++		uint    hdrslen = 0;
++		uint    cseqoff = 0;
++		uint    cseqlen = 0;
++		uint    transoff = 0;
++		uint    translen = 0;
++		uint    off;
++
++		if (!rtsp_parse_message(pdata, datalen, &dataoff,
++					&hdrsoff, &hdrslen,
++					&cseqoff, &cseqlen,
++					&transoff, &translen))
++			break;      /* not a valid message */
++
++		if (strncmp(pdata+cmdoff, "SETUP ", 6) != 0)
++			continue;   /* not a SETUP message */
++		DEBUGP("found a setup message\n");
++
++		off = 0;
++		if(translen) {
++			rtsp_parse_transport(pdata+transoff, translen, &expinfo);
++		}
++
++		if (expinfo.loport == 0) {
++			DEBUGP("no udp transports found\n");
++			continue;   /* no udp transports found */
++		}
++
++		DEBUGP("udp transport found, ports=(%d,%hu,%hu)\n",
++		       (int)expinfo.pbtype, expinfo.loport, expinfo.hiport);
++
++		exp = nf_ct_expect_alloc(ct);
++		if (!exp) {
++			ret = NF_DROP;
++			goto out;
++		}
++
++		be_loport = htons(expinfo.loport);
++
++		nf_ct_expect_init(exp, NF_CT_EXPECT_CLASS_DEFAULT,
++			ct->tuplehash[!dir].tuple.src.l3num,
++			&ct->tuplehash[!dir].tuple.src.u3, &ct->tuplehash[!dir].tuple.dst.u3,
++			IPPROTO_UDP, NULL, &be_loport);
++
++		exp->master = ct;
++
++		exp->expectfn = expected;
++		exp->flags = 0;
++
++		if (expinfo.pbtype == pb_range) {
++			DEBUGP("Changing expectation mask to handle multiple ports\n");
++			exp->mask.src.u.udp.port  = 0xfffe;
++		}
++
++		DEBUGP("expect_related %u.%u.%u.%u:%u-%u.%u.%u.%u:%u\n",
++		       NIPQUAD(exp->tuple.src.u3.ip),
++		       ntohs(exp->tuple.src.u.udp.port),
++		       NIPQUAD(exp->tuple.dst.u3.ip),
++		       ntohs(exp->tuple.dst.u.udp.port));
++
++		if (nf_nat_rtsp_hook)
++			/* pass the request off to the nat helper */
++			ret = nf_nat_rtsp_hook(skb, ctinfo, hdrsoff, hdrslen, &expinfo, exp);
++		else if (nf_ct_expect_related(exp) != 0) {
++			INFOP("nf_ct_expect_related failed\n");
++			ret  = NF_DROP;
++		}
++		nf_ct_expect_put(exp);
++		goto out;
++	}
++out:
++
++	return ret;
++}
++
++
++static inline int
++help_in(struct sk_buff *skb, size_t pktlen,
++ struct nf_conn* ct, enum ip_conntrack_info ctinfo)
++{
++ return NF_ACCEPT;
++}
++
++static int help(struct sk_buff *skb, unsigned int protoff,
++		struct nf_conn *ct, enum ip_conntrack_info ctinfo)
++{
++	struct tcphdr _tcph, *th;
++	unsigned int dataoff, datalen;
++	char *rb_ptr;
++	int ret = NF_DROP;
++
++	/* Until there's been traffic both ways, don't look in packets. */
++	if (ctinfo != IP_CT_ESTABLISHED &&
++	    ctinfo != IP_CT_ESTABLISHED + IP_CT_IS_REPLY) {
++		DEBUGP("conntrackinfo = %u\n", ctinfo);
++		return NF_ACCEPT;
++	}
++
++	/* Not whole TCP header? */
++	th = skb_header_pointer(skb, protoff, sizeof(_tcph), &_tcph);
++
++	if (!th)
++		return NF_ACCEPT;
++
++	/* No data ? */
++	dataoff = protoff + th->doff*4;
++	datalen = skb->len - dataoff;
++	if (dataoff >= skb->len)
++		return NF_ACCEPT;
++
++	spin_lock_bh(&rtsp_buffer_lock);
++	rb_ptr = skb_header_pointer(skb, dataoff,
++				    skb->len - dataoff, rtsp_buffer);
++	BUG_ON(rb_ptr == NULL);
++
++#if 0
++	/* Checksum invalid?  Ignore. */
++	/* FIXME: Source route IP option packets --RR */
++	if (tcp_v4_check(tcph, tcplen, iph->saddr, iph->daddr,
++			 csum_partial((char*)tcph, tcplen, 0)))
++	{
++		DEBUGP("bad csum: %p %u %u.%u.%u.%u %u.%u.%u.%u\n",
++		       tcph, tcplen, NIPQUAD(iph->saddr), NIPQUAD(iph->daddr));
++		return NF_ACCEPT;
++	}
++#endif
++
++	switch (CTINFO2DIR(ctinfo)) {
++	case IP_CT_DIR_ORIGINAL:
++		ret = help_out(skb, rb_ptr, datalen, ct, ctinfo);
++		break;
++	case IP_CT_DIR_REPLY:
++		DEBUGP("IP_CT_DIR_REPLY\n");
++		/* inbound packet: server->client */
++		ret = NF_ACCEPT;
++		break;
++	}
++
++	spin_unlock_bh(&rtsp_buffer_lock);
++
++	return ret;
++}
++
++static struct nf_conntrack_helper rtsp_helpers[MAX_PORTS];
++static char rtsp_names[MAX_PORTS][10];
++static struct nf_conntrack_expect_policy rtsp_expect_policy;
++
++/* This function is intentionally _NOT_ defined as __exit */
++static void
++fini(void)
++{
++	int i;
++	for (i = 0; i < num_ports; i++) {
++		DEBUGP("unregistering port %d\n", ports[i]);
++		nf_conntrack_helper_unregister(&rtsp_helpers[i]);
++	}
++	kfree(rtsp_buffer);
++}
++
++static int __init
++init(void)
++{
++	int i, ret;
++	struct nf_conntrack_helper *hlpr;
++	char *tmpname;
++
++	printk("nf_conntrack_rtsp v" IP_NF_RTSP_VERSION " loading\n");
++
++	if (max_outstanding < 1) {
++		printk("nf_conntrack_rtsp: max_outstanding must be a positive integer\n");
++		return -EBUSY;
++	}
++	if (setup_timeout < 0) {
++		printk("nf_conntrack_rtsp: setup_timeout must be a positive integer\n");
++		return -EBUSY;
++	}
++
++	rtsp_expect_policy.max_expected = max_outstanding;
++	rtsp_expect_policy.timeout = setup_timeout;
++
++	rtsp_buffer = kmalloc(65536, GFP_KERNEL);
++	if (!rtsp_buffer)
++		return -ENOMEM;
++
++	/* If no port given, default to standard rtsp port */
++	if (ports[0] == 0) {
++		ports[0] = RTSP_PORT;
++	}
++
++	for (i = 0; (i < MAX_PORTS) && ports[i]; i++) {
++		hlpr = &rtsp_helpers[i];
++		memset(hlpr, 0, sizeof(struct nf_conntrack_helper));
++		hlpr->tuple.src.u.tcp.port = htons(ports[i]);
++		hlpr->tuple.dst.protonum = IPPROTO_TCP;
++		hlpr->expect_policy = &rtsp_expect_policy;
++		hlpr->me = THIS_MODULE;
++		hlpr->help = help;
++
++		tmpname = &rtsp_names[i][0];
++		if (ports[i] == RTSP_PORT) {
++			sprintf(tmpname, "rtsp");
++		} else {
++			sprintf(tmpname, "rtsp-%d", i);
++		}
++		hlpr->name = tmpname;
++
++		DEBUGP("port #%d: %d\n", i, ports[i]);
++
++		ret = nf_conntrack_helper_register(hlpr);
++
++		if (ret) {
++			printk("nf_conntrack_rtsp: ERROR registering port %d\n", ports[i]);
++			fini();
++			return -EBUSY;
++		}
++		num_ports++;
++	}
++	return 0;
++}
++
++module_init(init);
++module_exit(fini);
++
++EXPORT_SYMBOL(nf_nat_rtsp_hook_expectfn);
++
+--- /dev/null
++++ b/net/ipv4/netfilter/nf_nat_rtsp.c
+@@ -0,0 +1,496 @@
++/*
++ * RTSP extension for TCP NAT alteration
++ * (C) 2003 by Tom Marshall <tmarshall at real.com>
++ * based on ip_nat_irc.c
++ *
++ *      This program is free software; you can redistribute it and/or
++ *      modify it under the terms of the GNU General Public License
++ *      as published by the Free Software Foundation; either version
++ *      2 of the License, or (at your option) any later version.
++ *
++ * Module load syntax:
++ *      insmod nf_nat_rtsp.o ports=port1,port2,...port<MAX_PORTS>
++ *                           stunaddr=<address>
++ *                           destaction=[auto|strip|none]
++ *
++ * If no ports are specified, the default will be port 554 only.
++ *
++ * stunaddr specifies the address used to detect that a client is using STUN.
++ * If this address is seen in the destination parameter, it is assumed that
++ * the client has already punched a UDP hole in the firewall, so we don't
++ * mangle the client_port.  If none is specified, it is autodetected.  It
++ * only needs to be set if you have multiple levels of NAT.  It should be
++ * set to the external address that the STUN clients detect.  Note that in
++ * this case, it will not be possible for clients to use UDP with servers
++ * between the NATs.
++ *
++ * If no destaction is specified, auto is used.
++ *   destaction=auto:  strip destination parameter if it is not stunaddr.
++ *   destaction=strip: always strip destination parameter (not recommended).
++ *   destaction=none:  do not touch destination parameter (not recommended).
++ */
++
++#include <linux/module.h>
++#include <net/tcp.h>
++#include <net/netfilter/nf_nat_helper.h>
++#include <net/netfilter/nf_nat_rule.h>
++#include <linux/netfilter/nf_conntrack_rtsp.h>
++#include <net/netfilter/nf_conntrack_expect.h>
++
++#include <linux/inet.h>
++#include <linux/ctype.h>
++#define NF_NEED_STRNCASECMP
++#define NF_NEED_STRTOU16
++#include <linux/netfilter_helpers.h>
++#define NF_NEED_MIME_NEXTLINE
++#include <linux/netfilter_mime.h>
++
++#define INFOP(fmt, args...) printk(KERN_INFO "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args)
++#if 0
++#define DEBUGP(fmt, args...) printk(KERN_DEBUG "%s: %s: " fmt, __FILE__, __FUNCTION__ , ## args)
++#else
++#define DEBUGP(fmt, args...)
++#endif
++
++#define MAX_PORTS       8
++#define DSTACT_AUTO     0
++#define DSTACT_STRIP    1
++#define DSTACT_NONE     2
++
++static char*    stunaddr = NULL;
++static char*    destaction = NULL;
++
++static u_int32_t extip = 0;
++static int       dstact = 0;
++
++MODULE_AUTHOR("Tom Marshall <tmarshall at real.com>");
++MODULE_DESCRIPTION("RTSP network address translation module");
++MODULE_LICENSE("GPL");
++module_param(stunaddr, charp, 0644);
++MODULE_PARM_DESC(stunaddr, "Address for detecting STUN");
++module_param(destaction, charp, 0644);
++MODULE_PARM_DESC(destaction, "Action for destination parameter (auto/strip/none)");
++
++#define SKIP_WSPACE(ptr,len,off) while(off < len && isspace(*(ptr+off))) { off++; }
++
++/*** helper functions ***/
++
++static void
++get_skb_tcpdata(struct sk_buff* skb, char** pptcpdata, uint* ptcpdatalen)
++{
++    struct iphdr*   iph  = ip_hdr(skb);
++    struct tcphdr*  tcph = (void *)iph + ip_hdrlen(skb);
++
++    *pptcpdata = (char*)tcph +  tcph->doff*4;
++    *ptcpdatalen = ((char*)skb_transport_header(skb) + skb->len) - *pptcpdata;
++}
++
++/*** nat functions ***/
++
++/*
++ * Mangle the "Transport:" header:
++ *   - Replace all occurences of "client_port=<spec>"
++ *   - Handle destination parameter
++ *
++ * In:
++ *   ct, ctinfo = conntrack context
++ *   skb        = packet
++ *   tranoff    = Transport header offset from TCP data
++ *   tranlen    = Transport header length (incl. CRLF)
++ *   rport_lo   = replacement low  port (host endian)
++ *   rport_hi   = replacement high port (host endian)
++ *
++ * Returns packet size difference.
++ *
++ * Assumes that a complete transport header is present, ending with CR or LF
++ */
++static int
++rtsp_mangle_tran(enum ip_conntrack_info ctinfo,
++                 struct nf_conntrack_expect* exp,
++								 struct ip_ct_rtsp_expect* prtspexp,
++                 struct sk_buff* skb, uint tranoff, uint tranlen)
++{
++    char*       ptcp;
++    uint        tcplen;
++    char*       ptran;
++    char        rbuf1[16];      /* Replacement buffer (one port) */
++    uint        rbuf1len;       /* Replacement len (one port) */
++    char        rbufa[16];      /* Replacement buffer (all ports) */
++    uint        rbufalen;       /* Replacement len (all ports) */
++    u_int32_t   newip;
++    u_int16_t   loport, hiport;
++    uint        off = 0;
++    uint        diff;           /* Number of bytes we removed */
++
++    struct nf_conn *ct = exp->master;
++    struct nf_conntrack_tuple *t;
++
++    char    szextaddr[15+1];
++    uint    extaddrlen;
++    int     is_stun;
++
++    get_skb_tcpdata(skb, &ptcp, &tcplen);
++    ptran = ptcp+tranoff;
++
++    if (tranoff+tranlen > tcplen || tcplen-tranoff < tranlen ||
++        tranlen < 10 || !iseol(ptran[tranlen-1]) ||
++        nf_strncasecmp(ptran, "Transport:", 10) != 0)
++    {
++        INFOP("sanity check failed\n");
++        return 0;
++    }
++    off += 10;
++    SKIP_WSPACE(ptcp+tranoff, tranlen, off);
++
++    newip = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip;
++    t = &exp->tuple;
++    t->dst.u3.ip = newip;
++
++    extaddrlen = extip ? sprintf(szextaddr, "%u.%u.%u.%u", &extip)
++                       : sprintf(szextaddr, "%u.%u.%u.%u", &newip);
++    DEBUGP("stunaddr=%s (%s)\n", szextaddr, (extip?"forced":"auto"));
++
++    rbuf1len = rbufalen = 0;
++    switch (prtspexp->pbtype)
++    {
++    case pb_single:
++        for (loport = prtspexp->loport; loport != 0; loport++) /* XXX: improper wrap? */
++        {
++            t->dst.u.udp.port = htons(loport);
++            if (nf_ct_expect_related(exp) == 0)
++            {
++                DEBUGP("using port %hu\n", loport);
++                break;
++            }
++        }
++        if (loport != 0)
++        {
++            rbuf1len = sprintf(rbuf1, "%hu", loport);
++            rbufalen = sprintf(rbufa, "%hu", loport);
++        }
++        break;
++    case pb_range:
++        for (loport = prtspexp->loport; loport != 0; loport += 2) /* XXX: improper wrap? */
++        {
++            t->dst.u.udp.port = htons(loport);
++            if (nf_ct_expect_related(exp) == 0)
++            {
++                hiport = loport + ~exp->mask.src.u.udp.port;
++                DEBUGP("using ports %hu-%hu\n", loport, hiport);
++                break;
++            }
++        }
++        if (loport != 0)
++        {
++            rbuf1len = sprintf(rbuf1, "%hu", loport);
++            rbufalen = sprintf(rbufa, "%hu-%hu", loport, loport+1);
++        }
++        break;
++    case pb_discon:
++        for (loport = prtspexp->loport; loport != 0; loport++) /* XXX: improper wrap? */
++        {
++            t->dst.u.udp.port = htons(loport);
++            if (nf_ct_expect_related(exp) == 0)
++            {
++                DEBUGP("using port %hu (1 of 2)\n", loport);
++                break;
++            }
++        }
++        for (hiport = prtspexp->hiport; hiport != 0; hiport++) /* XXX: improper wrap? */
++        {
++            t->dst.u.udp.port = htons(hiport);
++            if (nf_ct_expect_related(exp) == 0)
++            {
++                DEBUGP("using port %hu (2 of 2)\n", hiport);
++                break;
++            }
++        }
++        if (loport != 0 && hiport != 0)
++        {
++            rbuf1len = sprintf(rbuf1, "%hu", loport);
++            if (hiport == loport+1)
++            {
++                rbufalen = sprintf(rbufa, "%hu-%hu", loport, hiport);
++            }
++            else
++            {
++                rbufalen = sprintf(rbufa, "%hu/%hu", loport, hiport);
++            }
++        }
++        break;
++    }
++
++    if (rbuf1len == 0)
++    {
++        return 0;   /* cannot get replacement port(s) */
++    }
++
++    /* Transport: tran;field;field=val,tran;field;field=val,... */
++    while (off < tranlen)
++    {
++        uint        saveoff;
++        const char* pparamend;
++        uint        nextparamoff;
++
++        pparamend = memchr(ptran+off, ',', tranlen-off);
++        pparamend = (pparamend == NULL) ? ptran+tranlen : pparamend+1;
++        nextparamoff = pparamend-ptcp;
++
++        /*
++         * We pass over each param twice.  On the first pass, we look for a
++         * destination= field.  It is handled by the security policy.  If it
++         * is present, allowed, and equal to our external address, we assume
++         * that STUN is being used and we leave the client_port= field alone.
++         */
++        is_stun = 0;
++        saveoff = off;
++        while (off < nextparamoff)
++        {
++            const char* pfieldend;
++            uint        nextfieldoff;
++
++            pfieldend = memchr(ptran+off, ';', nextparamoff-off);
++            nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1;
++
++            if (dstact != DSTACT_NONE && strncmp(ptran+off, "destination=", 12) == 0)
++            {
++                if (strncmp(ptran+off+12, szextaddr, extaddrlen) == 0)
++                {
++                    is_stun = 1;
++                }
++                if (dstact == DSTACT_STRIP || (dstact == DSTACT_AUTO && !is_stun))
++                {
++                    diff = nextfieldoff-off;
++                    if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo,
++                                                         off, diff, NULL, 0))
++                    {
++                        /* mangle failed, all we can do is bail */
++			nf_ct_unexpect_related(exp);
++                        return 0;
++                    }
++                    get_skb_tcpdata(skb, &ptcp, &tcplen);
++                    ptran = ptcp+tranoff;
++                    tranlen -= diff;
++                    nextparamoff -= diff;
++                    nextfieldoff -= diff;
++                }
++            }
++
++            off = nextfieldoff;
++        }
++        if (is_stun)
++        {
++            continue;
++        }
++        off = saveoff;
++        while (off < nextparamoff)
++        {
++            const char* pfieldend;
++            uint        nextfieldoff;
++
++            pfieldend = memchr(ptran+off, ';', nextparamoff-off);
++            nextfieldoff = (pfieldend == NULL) ? nextparamoff : pfieldend-ptran+1;
++
++            if (strncmp(ptran+off, "client_port=", 12) == 0)
++            {
++                u_int16_t   port;
++                uint        numlen;
++                uint        origoff;
++                uint        origlen;
++                char*       rbuf    = rbuf1;
++                uint        rbuflen = rbuf1len;
++
++                off += 12;
++                origoff = (ptran-ptcp)+off;
++                origlen = 0;
++                numlen = nf_strtou16(ptran+off, &port);
++                off += numlen;
++                origlen += numlen;
++                if (port != prtspexp->loport)
++                {
++                    DEBUGP("multiple ports found, port %hu ignored\n", port);
++                }
++                else
++                {
++                    if (ptran[off] == '-' || ptran[off] == '/')
++                    {
++                        off++;
++                        origlen++;
++                        numlen = nf_strtou16(ptran+off, &port);
++                        off += numlen;
++                        origlen += numlen;
++                        rbuf = rbufa;
++                        rbuflen = rbufalen;
++                    }
++
++                    /*
++                     * note we cannot just memcpy() if the sizes are the same.
++                     * the mangle function does skb resizing, checks for a
++                     * cloned skb, and updates the checksums.
++                     *
++                     * parameter 4 below is offset from start of tcp data.
++                     */
++                    diff = origlen-rbuflen;
++                    if (!nf_nat_mangle_tcp_packet(skb, ct, ctinfo,
++                                              origoff, origlen, rbuf, rbuflen))
++                    {
++                        /* mangle failed, all we can do is bail */
++			nf_ct_unexpect_related(exp);
++                        return 0;
++                    }
++                    get_skb_tcpdata(skb, &ptcp, &tcplen);
++                    ptran = ptcp+tranoff;
++                    tranlen -= diff;
++                    nextparamoff -= diff;
++                    nextfieldoff -= diff;
++                }
++            }
++
++            off = nextfieldoff;
++        }
++
++        off = nextparamoff;
++    }
++
++    return 1;
++}
++
++static uint
++help_out(struct sk_buff *skb, enum ip_conntrack_info ctinfo,
++	 unsigned int matchoff, unsigned int matchlen, struct ip_ct_rtsp_expect* prtspexp,
++	 struct nf_conntrack_expect* exp)
++{
++    char*   ptcp;
++    uint    tcplen;
++    uint    hdrsoff;
++    uint    hdrslen;
++    uint    lineoff;
++    uint    linelen;
++    uint    off;
++
++    //struct iphdr* iph = (struct iphdr*)skb->nh.iph;
++    //struct tcphdr* tcph = (struct tcphdr*)((void*)iph + iph->ihl*4);
++
++    get_skb_tcpdata(skb, &ptcp, &tcplen);
++    hdrsoff = matchoff;//exp->seq - ntohl(tcph->seq);
++    hdrslen = matchlen;
++    off = hdrsoff;
++    DEBUGP("NAT rtsp help_out\n");
++
++    while (nf_mime_nextline(ptcp, hdrsoff+hdrslen, &off, &lineoff, &linelen))
++    {
++        if (linelen == 0)
++        {
++            break;
++        }
++        if (off > hdrsoff+hdrslen)
++        {
++            INFOP("!! overrun !!");
++            break;
++        }
++        DEBUGP("hdr: len=%u, %.*s", linelen, (int)linelen, ptcp+lineoff);
++
++        if (nf_strncasecmp(ptcp+lineoff, "Transport:", 10) == 0)
++        {
++            uint oldtcplen = tcplen;
++	    DEBUGP("hdr: Transport\n");
++            if (!rtsp_mangle_tran(ctinfo, exp, prtspexp, skb, lineoff, linelen))
++            {
++		DEBUGP("hdr: Transport mangle failed");
++                break;
++            }
++            get_skb_tcpdata(skb, &ptcp, &tcplen);
++            hdrslen -= (oldtcplen-tcplen);
++            off -= (oldtcplen-tcplen);
++            lineoff -= (oldtcplen-tcplen);
++            linelen -= (oldtcplen-tcplen);
++            DEBUGP("rep: len=%u, %.*s", linelen, (int)linelen, ptcp+lineoff);
++        }
++    }
++
++    return NF_ACCEPT;
++}
++
++static unsigned int
++help(struct sk_buff *skb, enum ip_conntrack_info ctinfo,
++     unsigned int matchoff, unsigned int matchlen, struct ip_ct_rtsp_expect* prtspexp,
++     struct nf_conntrack_expect* exp)
++{
++    int dir = CTINFO2DIR(ctinfo);
++    int rc = NF_ACCEPT;
++
++    switch (dir)
++    {
++    case IP_CT_DIR_ORIGINAL:
++        rc = help_out(skb, ctinfo, matchoff, matchlen, prtspexp, exp);
++        break;
++    case IP_CT_DIR_REPLY:
++	DEBUGP("unmangle ! %u\n", ctinfo);
++    	/* XXX: unmangle */
++	rc = NF_ACCEPT;
++        break;
++    }
++    //UNLOCK_BH(&ip_rtsp_lock);
++
++    return rc;
++}
++
++static void expected(struct nf_conn* ct, struct nf_conntrack_expect *exp)
++{
++    struct nf_nat_multi_range_compat mr;
++    u_int32_t newdstip, newsrcip, newip;
++
++    struct nf_conn *master = ct->master;
++
++    newdstip = master->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip;
++    newsrcip = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip;
++    //FIXME (how to port that ?)
++    //code from 2.4 : newip = (HOOK2MANIP(hooknum) == IP_NAT_MANIP_SRC) ? newsrcip : newdstip;
++    newip = newdstip;
++
++    DEBUGP("newsrcip=%u.%u.%u.%u, newdstip=%u.%u.%u.%u, newip=%u.%u.%u.%u\n",
++           &newsrcip, &newdstip, &newip);
++
++    mr.rangesize = 1;
++    // We don't want to manip the per-protocol, just the IPs.
++    mr.range[0].flags = IP_NAT_RANGE_MAP_IPS;
++    mr.range[0].min_ip = mr.range[0].max_ip = newip;
++
++    nf_nat_setup_info(ct, &mr.range[0], IP_NAT_MANIP_DST);
++}
++
++
++static void __exit fini(void)
++{
++	nf_nat_rtsp_hook = NULL;
++        nf_nat_rtsp_hook_expectfn = NULL;
++	synchronize_net();
++}
++
++static int __init init(void)
++{
++	printk("nf_nat_rtsp v" IP_NF_RTSP_VERSION " loading\n");
++
++	BUG_ON(nf_nat_rtsp_hook);
++	nf_nat_rtsp_hook = help;
++        nf_nat_rtsp_hook_expectfn = &expected;
++
++	if (stunaddr != NULL)
++		extip = in_aton(stunaddr);
++
++	if (destaction != NULL) {
++	        if (strcmp(destaction, "auto") == 0)
++			dstact = DSTACT_AUTO;
++
++		if (strcmp(destaction, "strip") == 0)
++			dstact = DSTACT_STRIP;
++
++		if (strcmp(destaction, "none") == 0)
++			dstact = DSTACT_NONE;
++	}
++
++	return 0;
++}
++
++module_init(init);
++module_exit(fini);
diff --git a/target/linux/generic/patches-2.6.38/200-sched_esfq.patch b/target/linux/generic/patches-2.6.38/200-sched_esfq.patch
new file mode 100644
index 0000000000..8a648ecc4d
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/200-sched_esfq.patch
@@ -0,0 +1,795 @@
+--- a/include/linux/pkt_sched.h
++++ b/include/linux/pkt_sched.h
+@@ -173,8 +173,37 @@ struct tc_sfq_xstats {
+  *
+  *	The only reason for this is efficiency, it is possible
+  *	to change these parameters in compile time.
++ *
++ *	If you need to play with these values, use esfq instead.
+  */
+ 
++/* ESFQ section */
++
++enum
++{
++        /* traditional */
++	TCA_SFQ_HASH_CLASSIC,
++	TCA_SFQ_HASH_DST,
++	TCA_SFQ_HASH_SRC,
++	TCA_SFQ_HASH_FWMARK,
++	/* conntrack */
++	TCA_SFQ_HASH_CTORIGDST,
++	TCA_SFQ_HASH_CTORIGSRC,
++	TCA_SFQ_HASH_CTREPLDST,
++	TCA_SFQ_HASH_CTREPLSRC,
++	TCA_SFQ_HASH_CTNATCHG,
++};
++
++struct tc_esfq_qopt
++{
++	unsigned	quantum;	/* Bytes per round allocated to flow */
++	int		perturb_period;	/* Period of hash perturbation */
++	__u32		limit;		/* Maximal packets in queue */
++	unsigned	divisor;	/* Hash divisor  */
++	unsigned	flows;		/* Maximal number of flows  */
++	unsigned	hash_kind;	/* Hash function to use for flow identification */
++};
++
+ /* RED section */
+ 
+ enum {
+--- a/net/sched/Kconfig
++++ b/net/sched/Kconfig
+@@ -137,6 +137,37 @@ config NET_SCH_SFQ
+ 	  To compile this code as a module, choose M here: the
+ 	  module will be called sch_sfq.
+ 
++config NET_SCH_ESFQ
++	tristate "Enhanced Stochastic Fairness Queueing (ESFQ)"
++	---help---
++	  Say Y here if you want to use the Enhanced Stochastic Fairness
++	  Queueing (ESFQ) packet scheduling algorithm for some of your network
++	  devices or as a leaf discipline for a classful qdisc such as HTB or
++	  CBQ (see the top of <file:net/sched/sch_esfq.c> for details and
++	  references to the SFQ algorithm).
++
++	  This is an enchanced SFQ version which allows you to control some
++	  hardcoded values in the SFQ scheduler.
++
++	  ESFQ also adds control of the hash function used to identify packet
++	  flows. The original SFQ discipline hashes by connection; ESFQ add
++	  several other hashing methods, such as by src IP or by dst IP, which
++	  can be more fair to users in some networking situations.
++
++	  To compile this code as a module, choose M here: the
++	  module will be called sch_esfq.
++
++config NET_SCH_ESFQ_NFCT
++	bool "Connection Tracking Hash Types"
++	depends on NET_SCH_ESFQ && NF_CONNTRACK
++	---help---
++	  Say Y here to enable support for hashing based on netfilter connection
++	  tracking information. This is useful for a router that is also using
++	  NAT to connect privately-addressed hosts to the Internet. If you want
++	  to provide fair distribution of upstream bandwidth, ESFQ must use
++	  connection tracking information, since all outgoing packets will share
++	  the same source address.
++
+ config NET_SCH_TEQL
+ 	tristate "True Link Equalizer (TEQL)"
+ 	---help---
+--- a/net/sched/Makefile
++++ b/net/sched/Makefile
+@@ -25,6 +25,7 @@ obj-$(CONFIG_NET_SCH_GRED)	+= sch_gred.o
+ obj-$(CONFIG_NET_SCH_INGRESS)	+= sch_ingress.o 
+ obj-$(CONFIG_NET_SCH_DSMARK)	+= sch_dsmark.o
+ obj-$(CONFIG_NET_SCH_SFQ)	+= sch_sfq.o
++obj-$(CONFIG_NET_SCH_ESFQ)	+= sch_esfq.o
+ obj-$(CONFIG_NET_SCH_TBF)	+= sch_tbf.o
+ obj-$(CONFIG_NET_SCH_TEQL)	+= sch_teql.o
+ obj-$(CONFIG_NET_SCH_PRIO)	+= sch_prio.o
+--- /dev/null
++++ b/net/sched/sch_esfq.c
+@@ -0,0 +1,702 @@
++/*
++ * net/sched/sch_esfq.c	Extended Stochastic Fairness Queueing discipline.
++ *
++ *		This program is free software; you can redistribute it and/or
++ *		modify it under the terms of the GNU General Public License
++ *		as published by the Free Software Foundation; either version
++ *		2 of the License, or (at your option) any later version.
++ *
++ * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
++ *
++ * Changes:	Alexander Atanasov, <alex@ssi.bg>
++ *		Added dynamic depth,limit,divisor,hash_kind options.
++ *		Added dst and src hashes.
++ *
++ * 		Alexander Clouter, <alex@digriz.org.uk>
++ *		Ported ESFQ to Linux 2.6.
++ *
++ * 		Corey Hickey, <bugfood-c@fatooh.org>
++ *		Maintenance of the Linux 2.6 port.
++ *		Added fwmark hash (thanks to Robert Kurjata).
++ *		Added usage of jhash.
++ *		Added conntrack support.
++ *		Added ctnatchg hash (thanks to Ben Pfountz).
++ */
++
++#include <linux/module.h>
++#include <asm/uaccess.h>
++#include <asm/system.h>
++#include <linux/bitops.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <linux/jiffies.h>
++#include <linux/string.h>
++#include <linux/mm.h>
++#include <linux/socket.h>
++#include <linux/sockios.h>
++#include <linux/in.h>
++#include <linux/errno.h>
++#include <linux/interrupt.h>
++#include <linux/if_ether.h>
++#include <linux/inet.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/notifier.h>
++#include <linux/init.h>
++#include <net/ip.h>
++#include <net/netlink.h>
++#include <linux/ipv6.h>
++#include <net/route.h>
++#include <linux/skbuff.h>
++#include <net/sock.h>
++#include <net/pkt_sched.h>
++#include <linux/jhash.h>
++#ifdef CONFIG_NET_SCH_ESFQ_NFCT
++#include <net/netfilter/nf_conntrack.h>
++#endif
++
++/*	Stochastic Fairness Queuing algorithm.
++	For more comments look at sch_sfq.c.
++	The difference is that you can change limit, depth,
++	hash table size and choose alternate hash types.
++
++	classic:	same as in sch_sfq.c
++	dst:		destination IP address
++	src:		source IP address
++	fwmark:		netfilter mark value
++	ctorigdst:	original destination IP address
++	ctorigsrc:	original source IP address
++	ctrepldst:	reply destination IP address
++	ctreplsrc:	reply source IP
++
++*/
++
++#define ESFQ_HEAD 0
++#define ESFQ_TAIL 1
++
++/* This type should contain at least SFQ_DEPTH*2 values */
++typedef unsigned int esfq_index;
++
++struct esfq_head
++{
++	esfq_index	next;
++	esfq_index	prev;
++};
++
++struct esfq_sched_data
++{
++/* Parameters */
++	int		perturb_period;
++	unsigned	quantum;	/* Allotment per round: MUST BE >= MTU */
++	int		limit;
++	unsigned	depth;
++	unsigned	hash_divisor;
++	unsigned	hash_kind;
++/* Variables */
++	struct timer_list perturb_timer;
++	int		perturbation;
++	esfq_index	tail;		/* Index of current slot in round */
++	esfq_index	max_depth;	/* Maximal depth */
++
++	esfq_index	*ht;			/* Hash table */
++	esfq_index	*next;			/* Active slots link */
++	short		*allot;			/* Current allotment per slot */
++	unsigned short	*hash;			/* Hash value indexed by slots */
++	struct sk_buff_head	*qs;		/* Slot queue */
++	struct esfq_head	*dep;		/* Linked list of slots, indexed by depth */
++};
++
++/* This contains the info we will hash. */
++struct esfq_packet_info
++{
++	u32	proto;		/* protocol or port */
++	u32	src;		/* source from packet header */
++	u32	dst;		/* destination from packet header */
++	u32	ctorigsrc;	/* original source from conntrack */
++	u32	ctorigdst;	/* original destination from conntrack */
++	u32	ctreplsrc;	/* reply source from conntrack */
++	u32	ctrepldst;	/* reply destination from conntrack */
++	u32	mark;		/* netfilter mark (fwmark) */
++};
++
++static __inline__ unsigned esfq_jhash_1word(struct esfq_sched_data *q,u32 a)
++{
++	return jhash_1word(a, q->perturbation) & (q->hash_divisor-1);
++}
++
++static __inline__ unsigned esfq_jhash_2words(struct esfq_sched_data *q, u32 a, u32 b)
++{
++	return jhash_2words(a, b, q->perturbation) & (q->hash_divisor-1);
++}
++
++static __inline__ unsigned esfq_jhash_3words(struct esfq_sched_data *q, u32 a, u32 b, u32 c)
++{
++	return jhash_3words(a, b, c, q->perturbation) & (q->hash_divisor-1);
++}
++
++static unsigned esfq_hash(struct esfq_sched_data *q, struct sk_buff *skb)
++{
++	struct esfq_packet_info info;
++#ifdef CONFIG_NET_SCH_ESFQ_NFCT
++	enum ip_conntrack_info ctinfo;
++	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
++#endif
++
++	switch (skb->protocol) {
++	case __constant_htons(ETH_P_IP):
++	{
++		struct iphdr *iph = ip_hdr(skb);
++		info.dst = iph->daddr;
++		info.src = iph->saddr;
++		if (!(iph->frag_off&htons(IP_MF|IP_OFFSET)) &&
++		    (iph->protocol == IPPROTO_TCP ||
++		     iph->protocol == IPPROTO_UDP ||
++		     iph->protocol == IPPROTO_SCTP ||
++		     iph->protocol == IPPROTO_DCCP ||
++		     iph->protocol == IPPROTO_ESP))
++			info.proto = *(((u32*)iph) + iph->ihl);
++		else
++			info.proto = iph->protocol;
++		break;
++	}
++	case __constant_htons(ETH_P_IPV6):
++	{
++		struct ipv6hdr *iph = ipv6_hdr(skb);
++		/* Hash ipv6 addresses into a u32. This isn't ideal,
++		 * but the code is simple. */
++		info.dst = jhash2(iph->daddr.s6_addr32, 4, q->perturbation);
++		info.src = jhash2(iph->saddr.s6_addr32, 4, q->perturbation);
++		if (iph->nexthdr == IPPROTO_TCP ||
++		    iph->nexthdr == IPPROTO_UDP ||
++		    iph->nexthdr == IPPROTO_SCTP ||
++		    iph->nexthdr == IPPROTO_DCCP ||
++		    iph->nexthdr == IPPROTO_ESP)
++			info.proto = *(u32*)&iph[1];
++		else
++			info.proto = iph->nexthdr;
++		break;
++	}
++	default:
++		info.dst   = (u32)(unsigned long)skb_dst(skb);
++		info.src   = (u32)(unsigned long)skb->sk;
++		info.proto = skb->protocol;
++	}
++
++	info.mark = skb->mark;
++
++#ifdef CONFIG_NET_SCH_ESFQ_NFCT
++	/* defaults if there is no conntrack info */
++	info.ctorigsrc = info.src;
++	info.ctorigdst = info.dst;
++	info.ctreplsrc = info.dst;
++	info.ctrepldst = info.src;
++	/* collect conntrack info */
++	if (ct && ct != &nf_conntrack_untracked) {
++		if (skb->protocol == __constant_htons(ETH_P_IP)) {
++			info.ctorigsrc = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip;
++			info.ctorigdst = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip;
++			info.ctreplsrc = ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip;
++			info.ctrepldst = ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip;
++		}
++		else if (skb->protocol == __constant_htons(ETH_P_IPV6)) {
++			/* Again, hash ipv6 addresses into a single u32. */
++			info.ctorigsrc = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip6, 4, q->perturbation);
++			info.ctorigdst = jhash2(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip6, 4, q->perturbation);
++			info.ctreplsrc = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip6, 4, q->perturbation);
++			info.ctrepldst = jhash2(ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip6, 4, q->perturbation);
++		}
++
++	}
++#endif
++
++	switch(q->hash_kind) {
++	case TCA_SFQ_HASH_CLASSIC:
++		return esfq_jhash_3words(q, info.dst, info.src, info.proto);
++	case TCA_SFQ_HASH_DST:
++		return esfq_jhash_1word(q, info.dst);
++	case TCA_SFQ_HASH_SRC:
++		return esfq_jhash_1word(q, info.src);
++	case TCA_SFQ_HASH_FWMARK:
++		return esfq_jhash_1word(q, info.mark);
++#ifdef CONFIG_NET_SCH_ESFQ_NFCT
++	case TCA_SFQ_HASH_CTORIGDST:
++		return esfq_jhash_1word(q, info.ctorigdst);
++	case TCA_SFQ_HASH_CTORIGSRC:
++		return esfq_jhash_1word(q, info.ctorigsrc);
++	case TCA_SFQ_HASH_CTREPLDST:
++		return esfq_jhash_1word(q, info.ctrepldst);
++	case TCA_SFQ_HASH_CTREPLSRC:
++		return esfq_jhash_1word(q, info.ctreplsrc);
++	case TCA_SFQ_HASH_CTNATCHG:
++	{
++		if (info.ctorigdst == info.ctreplsrc)
++			return esfq_jhash_1word(q, info.ctorigsrc);
++		return esfq_jhash_1word(q, info.ctreplsrc);
++	}
++#endif
++	default:
++		if (net_ratelimit())
++			printk(KERN_WARNING "ESFQ: Unknown hash method. Falling back to classic.\n");
++	}
++	return esfq_jhash_3words(q, info.dst, info.src, info.proto);
++}
++
++static inline void esfq_link(struct esfq_sched_data *q, esfq_index x)
++{
++	esfq_index p, n;
++	int d = q->qs[x].qlen + q->depth;
++
++	p = d;
++	n = q->dep[d].next;
++	q->dep[x].next = n;
++	q->dep[x].prev = p;
++	q->dep[p].next = q->dep[n].prev = x;
++}
++
++static inline void esfq_dec(struct esfq_sched_data *q, esfq_index x)
++{
++	esfq_index p, n;
++
++	n = q->dep[x].next;
++	p = q->dep[x].prev;
++	q->dep[p].next = n;
++	q->dep[n].prev = p;
++
++	if (n == p && q->max_depth == q->qs[x].qlen + 1)
++		q->max_depth--;
++
++	esfq_link(q, x);
++}
++
++static inline void esfq_inc(struct esfq_sched_data *q, esfq_index x)
++{
++	esfq_index p, n;
++	int d;
++
++	n = q->dep[x].next;
++	p = q->dep[x].prev;
++	q->dep[p].next = n;
++	q->dep[n].prev = p;
++	d = q->qs[x].qlen;
++	if (q->max_depth < d)
++		q->max_depth = d;
++
++	esfq_link(q, x);
++}
++
++static unsigned int esfq_drop(struct Qdisc *sch)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	esfq_index d = q->max_depth;
++	struct sk_buff *skb;
++	unsigned int len;
++
++	/* Queue is full! Find the longest slot and
++	   drop a packet from it */
++
++	if (d > 1) {
++		esfq_index x = q->dep[d+q->depth].next;
++		skb = q->qs[x].prev;
++		len = skb->len;
++		__skb_unlink(skb, &q->qs[x]);
++		kfree_skb(skb);
++		esfq_dec(q, x);
++		sch->q.qlen--;
++		sch->qstats.drops++;
++		sch->qstats.backlog -= len;
++		return len;
++	}
++
++	if (d == 1) {
++		/* It is difficult to believe, but ALL THE SLOTS HAVE LENGTH 1. */
++		d = q->next[q->tail];
++		q->next[q->tail] = q->next[d];
++		q->allot[q->next[d]] += q->quantum;
++		skb = q->qs[d].prev;
++		len = skb->len;
++		__skb_unlink(skb, &q->qs[d]);
++		kfree_skb(skb);
++		esfq_dec(q, d);
++		sch->q.qlen--;
++		q->ht[q->hash[d]] = q->depth;
++		sch->qstats.drops++;
++		sch->qstats.backlog -= len;
++		return len;
++	}
++
++	return 0;
++}
++
++static void esfq_q_enqueue(struct sk_buff *skb, struct esfq_sched_data *q, unsigned int end)
++{
++	unsigned hash = esfq_hash(q, skb);
++	unsigned depth = q->depth;
++	esfq_index x;
++
++	x = q->ht[hash];
++	if (x == depth) {
++		q->ht[hash] = x = q->dep[depth].next;
++		q->hash[x] = hash;
++	}
++
++	if (end == ESFQ_TAIL)
++		__skb_queue_tail(&q->qs[x], skb);
++	else
++		__skb_queue_head(&q->qs[x], skb);
++
++	esfq_inc(q, x);
++	if (q->qs[x].qlen == 1) {		/* The flow is new */
++		if (q->tail == depth) {	/* It is the first flow */
++			q->tail = x;
++			q->next[x] = x;
++			q->allot[x] = q->quantum;
++		} else {
++			q->next[x] = q->next[q->tail];
++			q->next[q->tail] = x;
++			q->tail = x;
++		}
++	}
++}
++
++static int esfq_enqueue(struct sk_buff *skb, struct Qdisc* sch)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	esfq_q_enqueue(skb, q, ESFQ_TAIL);
++	sch->qstats.backlog += skb->len;
++	if (++sch->q.qlen < q->limit-1) {
++		sch->bstats.bytes += skb->len;
++		sch->bstats.packets++;
++		return 0;
++	}
++
++	sch->qstats.drops++;
++	esfq_drop(sch);
++	return NET_XMIT_CN;
++}
++
++static struct sk_buff *esfq_peek(struct Qdisc* sch)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	esfq_index a;
++
++	/* No active slots */
++	if (q->tail == q->depth)
++		return NULL;
++
++	a = q->next[q->tail];
++	return skb_peek(&q->qs[a]);
++}
++
++static struct sk_buff *esfq_q_dequeue(struct esfq_sched_data *q)
++{
++	struct sk_buff *skb;
++	unsigned depth = q->depth;
++	esfq_index a, old_a;
++
++	/* No active slots */
++	if (q->tail == depth)
++		return NULL;
++
++	a = old_a = q->next[q->tail];
++
++	/* Grab packet */
++	skb = __skb_dequeue(&q->qs[a]);
++	esfq_dec(q, a);
++
++	/* Is the slot empty? */
++	if (q->qs[a].qlen == 0) {
++		q->ht[q->hash[a]] = depth;
++		a = q->next[a];
++		if (a == old_a) {
++			q->tail = depth;
++			return skb;
++		}
++		q->next[q->tail] = a;
++		q->allot[a] += q->quantum;
++	} else if ((q->allot[a] -= skb->len) <= 0) {
++		q->tail = a;
++		a = q->next[a];
++		q->allot[a] += q->quantum;
++	}
++
++	return skb;
++}
++
++static struct sk_buff *esfq_dequeue(struct Qdisc* sch)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	struct sk_buff *skb;
++
++	skb = esfq_q_dequeue(q);
++	if (skb == NULL)
++		return NULL;
++	sch->q.qlen--;
++	sch->qstats.backlog -= skb->len;
++	return skb;
++}
++
++static void esfq_q_destroy(struct esfq_sched_data *q)
++{
++	del_timer(&q->perturb_timer);
++	if(q->ht)
++		kfree(q->ht);
++	if(q->dep)
++		kfree(q->dep);
++	if(q->next)
++		kfree(q->next);
++	if(q->allot)
++		kfree(q->allot);
++	if(q->hash)
++		kfree(q->hash);
++	if(q->qs)
++		kfree(q->qs);
++}
++
++static void esfq_destroy(struct Qdisc *sch)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	esfq_q_destroy(q);
++}
++
++
++static void esfq_reset(struct Qdisc* sch)
++{
++	struct sk_buff *skb;
++
++	while ((skb = esfq_dequeue(sch)) != NULL)
++		kfree_skb(skb);
++}
++
++static void esfq_perturbation(unsigned long arg)
++{
++	struct Qdisc *sch = (struct Qdisc*)arg;
++	struct esfq_sched_data *q = qdisc_priv(sch);
++
++	q->perturbation = net_random()&0x1F;
++
++	if (q->perturb_period) {
++		q->perturb_timer.expires = jiffies + q->perturb_period;
++		add_timer(&q->perturb_timer);
++	}
++}
++
++static unsigned int esfq_check_hash(unsigned int kind)
++{
++	switch (kind) {
++	case TCA_SFQ_HASH_CTORIGDST:
++	case TCA_SFQ_HASH_CTORIGSRC:
++	case TCA_SFQ_HASH_CTREPLDST:
++	case TCA_SFQ_HASH_CTREPLSRC:
++	case TCA_SFQ_HASH_CTNATCHG:
++#ifndef CONFIG_NET_SCH_ESFQ_NFCT
++	{
++		if (net_ratelimit())
++			printk(KERN_WARNING "ESFQ: Conntrack hash types disabled in kernel config. Falling back to classic.\n");
++		return TCA_SFQ_HASH_CLASSIC;
++	}
++#endif
++	case TCA_SFQ_HASH_CLASSIC:
++	case TCA_SFQ_HASH_DST:
++	case TCA_SFQ_HASH_SRC:
++	case TCA_SFQ_HASH_FWMARK:
++		return kind;
++	default:
++	{
++		if (net_ratelimit())
++			printk(KERN_WARNING "ESFQ: Unknown hash type. Falling back to classic.\n");
++		return TCA_SFQ_HASH_CLASSIC;
++	}
++	}
++}
++
++static int esfq_q_init(struct esfq_sched_data *q, struct nlattr *opt)
++{
++	struct tc_esfq_qopt *ctl = nla_data(opt);
++	esfq_index p = ~0U/2;
++	int i;
++
++	if (opt && opt->nla_len < nla_attr_size(sizeof(*ctl)))
++		return -EINVAL;
++
++	q->perturbation = 0;
++	q->hash_kind = TCA_SFQ_HASH_CLASSIC;
++	q->max_depth = 0;
++	if (opt == NULL) {
++		q->perturb_period = 0;
++		q->hash_divisor = 1024;
++		q->tail = q->limit = q->depth = 128;
++
++	} else {
++		struct tc_esfq_qopt *ctl = nla_data(opt);
++		if (ctl->quantum)
++			q->quantum = ctl->quantum;
++		q->perturb_period = ctl->perturb_period*HZ;
++		q->hash_divisor = ctl->divisor ? : 1024;
++		q->tail = q->limit = q->depth = ctl->flows ? : 128;
++
++		if ( q->depth > p - 1 )
++			return -EINVAL;
++
++		if (ctl->limit)
++			q->limit = min_t(u32, ctl->limit, q->depth);
++
++		if (ctl->hash_kind) {
++			q->hash_kind = esfq_check_hash(ctl->hash_kind);
++		}
++	}
++
++	q->ht = kmalloc(q->hash_divisor*sizeof(esfq_index), GFP_KERNEL);
++	if (!q->ht)
++		goto err_case;
++	q->dep = kmalloc((1+q->depth*2)*sizeof(struct esfq_head), GFP_KERNEL);
++	if (!q->dep)
++		goto err_case;
++	q->next = kmalloc(q->depth*sizeof(esfq_index), GFP_KERNEL);
++	if (!q->next)
++		goto err_case;
++	q->allot = kmalloc(q->depth*sizeof(short), GFP_KERNEL);
++	if (!q->allot)
++		goto err_case;
++	q->hash = kmalloc(q->depth*sizeof(unsigned short), GFP_KERNEL);
++	if (!q->hash)
++		goto err_case;
++	q->qs = kmalloc(q->depth*sizeof(struct sk_buff_head), GFP_KERNEL);
++	if (!q->qs)
++		goto err_case;
++
++	for (i=0; i< q->hash_divisor; i++)
++		q->ht[i] = q->depth;
++	for (i=0; i<q->depth; i++) {
++		skb_queue_head_init(&q->qs[i]);
++		q->dep[i+q->depth].next = i+q->depth;
++		q->dep[i+q->depth].prev = i+q->depth;
++	}
++
++	for (i=0; i<q->depth; i++)
++		esfq_link(q, i);
++	return 0;
++err_case:
++	esfq_q_destroy(q);
++	return -ENOBUFS;
++}
++
++static int esfq_init(struct Qdisc *sch, struct nlattr *opt)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	int err;
++
++	q->quantum = psched_mtu(qdisc_dev(sch)); /* default */
++	if ((err = esfq_q_init(q, opt)))
++		return err;
++
++	init_timer(&q->perturb_timer);
++	q->perturb_timer.data = (unsigned long)sch;
++	q->perturb_timer.function = esfq_perturbation;
++	if (q->perturb_period) {
++		q->perturb_timer.expires = jiffies + q->perturb_period;
++		add_timer(&q->perturb_timer);
++	}
++
++	return 0;
++}
++
++static int esfq_change(struct Qdisc *sch, struct nlattr *opt)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	struct esfq_sched_data new;
++	struct sk_buff *skb;
++	int err;
++
++	/* set up new queue */
++	memset(&new, 0, sizeof(struct esfq_sched_data));
++	new.quantum = psched_mtu(qdisc_dev(sch)); /* default */
++	if ((err = esfq_q_init(&new, opt)))
++		return err;
++
++	/* copy all packets from the old queue to the new queue */
++	sch_tree_lock(sch);
++	while ((skb = esfq_q_dequeue(q)) != NULL)
++		esfq_q_enqueue(skb, &new, ESFQ_TAIL);
++
++	/* clean up the old queue */
++	esfq_q_destroy(q);
++
++	/* copy elements of the new queue into the old queue */
++	q->perturb_period = new.perturb_period;
++	q->quantum        = new.quantum;
++	q->limit          = new.limit;
++	q->depth          = new.depth;
++	q->hash_divisor   = new.hash_divisor;
++	q->hash_kind      = new.hash_kind;
++	q->tail           = new.tail;
++	q->max_depth      = new.max_depth;
++	q->ht    = new.ht;
++	q->dep   = new.dep;
++	q->next  = new.next;
++	q->allot = new.allot;
++	q->hash  = new.hash;
++	q->qs    = new.qs;
++
++	/* finish up */
++	if (q->perturb_period) {
++		q->perturb_timer.expires = jiffies + q->perturb_period;
++		add_timer(&q->perturb_timer);
++	} else {
++		q->perturbation = 0;
++	}
++	sch_tree_unlock(sch);
++	return 0;
++}
++
++static int esfq_dump(struct Qdisc *sch, struct sk_buff *skb)
++{
++	struct esfq_sched_data *q = qdisc_priv(sch);
++	unsigned char *b = skb_tail_pointer(skb);
++	struct tc_esfq_qopt opt;
++
++	opt.quantum = q->quantum;
++	opt.perturb_period = q->perturb_period/HZ;
++
++	opt.limit = q->limit;
++	opt.divisor = q->hash_divisor;
++	opt.flows = q->depth;
++	opt.hash_kind = q->hash_kind;
++
++	NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
++
++	return skb->len;
++
++nla_put_failure:
++	nlmsg_trim(skb, b);
++	return -1;
++}
++
++static struct Qdisc_ops esfq_qdisc_ops =
++{
++	.next		=	NULL,
++	.cl_ops		=	NULL,
++	.id		=	"esfq",
++	.priv_size	=	sizeof(struct esfq_sched_data),
++	.enqueue	=	esfq_enqueue,
++	.dequeue	=	esfq_dequeue,
++	.peek		=	esfq_peek,
++	.drop		=	esfq_drop,
++	.init		=	esfq_init,
++	.reset		=	esfq_reset,
++	.destroy	=	esfq_destroy,
++	.change		=	esfq_change,
++	.dump		=	esfq_dump,
++	.owner		=	THIS_MODULE,
++};
++
++static int __init esfq_module_init(void)
++{
++	return register_qdisc(&esfq_qdisc_ops);
++}
++static void __exit esfq_module_exit(void)
++{
++	unregister_qdisc(&esfq_qdisc_ops);
++}
++module_init(esfq_module_init)
++module_exit(esfq_module_exit)
++MODULE_LICENSE("GPL");
diff --git a/target/linux/generic/patches-2.6.38/202-mips_mem_functions_performance.patch b/target/linux/generic/patches-2.6.38/202-mips_mem_functions_performance.patch
new file mode 100644
index 0000000000..e4324717b4
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/202-mips_mem_functions_performance.patch
@@ -0,0 +1,83 @@
+--- a/arch/mips/include/asm/string.h
++++ b/arch/mips/include/asm/string.h
+@@ -133,11 +133,44 @@ strncmp(__const__ char *__cs, __const__
+ 
+ #define __HAVE_ARCH_MEMSET
+ extern void *memset(void *__s, int __c, size_t __count);
++#define memset(__s, __c, len)					\
++({								\
++	size_t __len = (len);					\
++	void *__ret;						\
++	if (__builtin_constant_p(len) && __len >= 64)		\
++		__ret = memset((__s), (__c), __len);		\
++	else							\
++		__ret = __builtin_memset((__s), (__c), __len);	\
++	__ret;							\
++})
+ 
+ #define __HAVE_ARCH_MEMCPY
+ extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
++#define memcpy(dst, src, len)					\
++({								\
++	size_t __len = (len);					\
++	void *__ret;						\
++	if (__builtin_constant_p(len) && __len >= 64)		\
++		__ret = memcpy((dst), (src), __len);		\
++	else							\
++		__ret = __builtin_memcpy((dst), (src), __len);	\
++	__ret;							\
++})
+ 
+ #define __HAVE_ARCH_MEMMOVE
+ extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
++#define memmove(dst, src, len)					\
++({								\
++	size_t __len = (len);					\
++	void *__ret;						\
++	if (__builtin_constant_p(len) && __len >= 64)		\
++		__ret = memmove((dst), (src), __len);		\
++	else							\
++		__ret = __builtin_memmove((dst), (src), __len);	\
++	__ret;							\
++})
++
++#define __HAVE_ARCH_MEMCMP
++#define memcmp(src1, src2, len) __builtin_memcmp((src1), (src2), (len))
+ 
+ #endif /* _ASM_STRING_H */
+--- a/arch/mips/lib/Makefile
++++ b/arch/mips/lib/Makefile
+@@ -3,7 +3,7 @@
+ #
+ 
+ lib-y	+= csum_partial.o delay.o memcpy.o memcpy-inatomic.o memset.o \
+-	   strlen_user.o strncpy_user.o strnlen_user.o uncached.o
++	   strlen_user.o strncpy_user.o strnlen_user.o uncached.o memcmp.o
+ 
+ obj-y			+= iomap.o
+ obj-$(CONFIG_PCI)	+= iomap-pci.o
+--- /dev/null
++++ b/arch/mips/lib/memcmp.c
+@@ -0,0 +1,22 @@
++/*
++ *  copied from linux/lib/string.c
++ *
++ *  Copyright (C) 1991, 1992  Linus Torvalds
++ */
++
++#include <linux/module.h>
++#include <linux/string.h>
++
++#undef memcmp
++int memcmp(const void *cs, const void *ct, size_t count)
++{
++	const unsigned char *su1, *su2;
++	int res = 0;
++
++	for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
++		if ((res = *su1 - *su2) != 0)
++			break;
++	return res;
++}
++EXPORT_SYMBOL(memcmp);
++
diff --git a/target/linux/generic/patches-2.6.38/203-slab_maxsize.patch b/target/linux/generic/patches-2.6.38/203-slab_maxsize.patch
new file mode 100644
index 0000000000..55e2516a69
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/203-slab_maxsize.patch
@@ -0,0 +1,13 @@
+--- a/include/linux/slab.h
++++ b/include/linux/slab.h
+@@ -128,8 +128,8 @@ const char *kmem_cache_name(struct kmem_
+  * to do various tricks to work around compiler limitations in order to
+  * ensure proper constant folding.
+  */
+-#define KMALLOC_SHIFT_HIGH	((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \
+-				(MAX_ORDER + PAGE_SHIFT - 1) : 25)
++#define KMALLOC_SHIFT_HIGH	((MAX_ORDER + PAGE_SHIFT - 1) <= 17 ? \
++				(MAX_ORDER + PAGE_SHIFT - 1) : 17)
+ 
+ #define KMALLOC_MAX_SIZE	(1UL << KMALLOC_SHIFT_HIGH)
+ #define KMALLOC_MAX_ORDER	(KMALLOC_SHIFT_HIGH - PAGE_SHIFT)
diff --git a/target/linux/generic/patches-2.6.38/204-jffs2_eofdetect.patch b/target/linux/generic/patches-2.6.38/204-jffs2_eofdetect.patch
new file mode 100644
index 0000000000..eaf9489d35
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/204-jffs2_eofdetect.patch
@@ -0,0 +1,132 @@
+--- a/fs/jffs2/build.c
++++ b/fs/jffs2/build.c
+@@ -112,6 +112,17 @@ static int jffs2_build_filesystem(struct
+ 	dbg_fsbuild("scanned flash completely\n");
+ 	jffs2_dbg_dump_block_lists_nolock(c);
+ 
++	if (c->flags & (1 << 7)) {
++		printk("%s(): unlocking the mtd device... ", __func__);
++		if (c->mtd->unlock)
++			c->mtd->unlock(c->mtd, 0, c->mtd->size);
++		printk("done.\n");
++
++		printk("%s(): erasing all blocks after the end marker... ", __func__);
++		jffs2_erase_pending_blocks(c, -1);
++		printk("done.\n");
++	}
++
+ 	dbg_fsbuild("pass 1 starting\n");
+ 	c->flags |= JFFS2_SB_FLAG_BUILDING;
+ 	/* Now scan the directory tree, increasing nlink according to every dirent found. */
+--- a/fs/jffs2/scan.c
++++ b/fs/jffs2/scan.c
+@@ -72,7 +72,7 @@ static int file_dirty(struct jffs2_sb_in
+ 		return ret;
+ 	if ((ret = jffs2_scan_dirty_space(c, jeb, jeb->free_size)))
+ 		return ret;
+-	/* Turned wasted size into dirty, since we apparently 
++	/* Turned wasted size into dirty, since we apparently
+ 	   think it's recoverable now. */
+ 	jeb->dirty_size += jeb->wasted_size;
+ 	c->dirty_size += jeb->wasted_size;
+@@ -144,8 +144,11 @@ int jffs2_scan_medium(struct jffs2_sb_in
+ 		/* reset summary info for next eraseblock scan */
+ 		jffs2_sum_reset_collected(s);
+ 
+-		ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
+-						buf_size, s);
++		if (c->flags & (1 << 7))
++			ret = BLK_STATE_ALLFF;
++		else
++			ret = jffs2_scan_eraseblock(c, jeb, buf_size?flashbuf:(flashbuf+jeb->offset),
++							buf_size, s);
+ 
+ 		if (ret < 0)
+ 			goto out;
+@@ -402,7 +405,7 @@ static int jffs2_scan_xref_node(struct j
+ 	if (!ref)
+ 		return -ENOMEM;
+ 
+-	/* BEFORE jffs2_build_xattr_subsystem() called, 
++	/* BEFORE jffs2_build_xattr_subsystem() called,
+ 	 * and AFTER xattr_ref is marked as a dead xref,
+ 	 * ref->xid is used to store 32bit xid, xd is not used
+ 	 * ref->ino is used to store 32bit inode-number, ic is not used
+@@ -475,7 +478,7 @@ static int jffs2_scan_eraseblock (struct
+ 		struct jffs2_sum_marker *sm;
+ 		void *sumptr = NULL;
+ 		uint32_t sumlen;
+-	      
++
+ 		if (!buf_size) {
+ 			/* XIP case. Just look, point at the summary if it's there */
+ 			sm = (void *)buf + c->sector_size - sizeof(*sm);
+@@ -491,9 +494,9 @@ static int jffs2_scan_eraseblock (struct
+ 				buf_len = sizeof(*sm);
+ 
+ 			/* Read as much as we want into the _end_ of the preallocated buffer */
+-			err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len, 
++			err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len,
+ 						  jeb->offset + c->sector_size - buf_len,
+-						  buf_len);				
++						  buf_len);
+ 			if (err)
+ 				return err;
+ 
+@@ -512,9 +515,9 @@ static int jffs2_scan_eraseblock (struct
+ 				}
+ 				if (buf_len < sumlen) {
+ 					/* Need to read more so that the entire summary node is present */
+-					err = jffs2_fill_scan_buf(c, sumptr, 
++					err = jffs2_fill_scan_buf(c, sumptr,
+ 								  jeb->offset + c->sector_size - sumlen,
+-								  sumlen - buf_len);				
++								  sumlen - buf_len);
+ 					if (err)
+ 						return err;
+ 				}
+@@ -527,7 +530,7 @@ static int jffs2_scan_eraseblock (struct
+ 
+ 			if (buf_size && sumlen > buf_size)
+ 				kfree(sumptr);
+-			/* If it returns with a real error, bail. 
++			/* If it returns with a real error, bail.
+ 			   If it returns positive, that's a block classification
+ 			   (i.e. BLK_STATE_xxx) so return that too.
+ 			   If it returns zero, fall through to full scan. */
+@@ -548,6 +551,17 @@ static int jffs2_scan_eraseblock (struct
+ 			return err;
+ 	}
+ 
++	if ((buf[0] == 0xde) &&
++		(buf[1] == 0xad) &&
++		(buf[2] == 0xc0) &&
++		(buf[3] == 0xde)) {
++		/* end of filesystem. erase everything after this point */
++		printk("%s(): End of filesystem marker found at 0x%x\n", __func__, jeb->offset);
++		c->flags |= (1 << 7);
++
++		return BLK_STATE_ALLFF;
++	}
++
+ 	/* We temporarily use 'ofs' as a pointer into the buffer/jeb */
+ 	ofs = 0;
+ 	max_ofs = EMPTY_SCAN_SIZE(c->sector_size);
+@@ -673,7 +687,7 @@ scan_more:
+ 				scan_end = buf_len;
+ 				goto more_empty;
+ 			}
+-			
++
+ 			/* See how much more there is to read in this eraseblock... */
+ 			buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
+ 			if (!buf_len) {
+@@ -909,7 +923,7 @@ scan_more:
+ 
+ 	D1(printk(KERN_DEBUG "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n",
+ 		  jeb->offset,jeb->free_size, jeb->dirty_size, jeb->unchecked_size, jeb->used_size, jeb->wasted_size));
+-	
++
+ 	/* mark_node_obsolete can add to wasted !! */
+ 	if (jeb->wasted_size) {
+ 		jeb->dirty_size += jeb->wasted_size;
diff --git a/target/linux/generic/patches-2.6.38/207-powerpc_asm_segment_h.patch b/target/linux/generic/patches-2.6.38/207-powerpc_asm_segment_h.patch
new file mode 100644
index 0000000000..1272e82c75
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/207-powerpc_asm_segment_h.patch
@@ -0,0 +1,9 @@
+--- /dev/null
++++ b/include/asm-powerpc/segment.h
+@@ -0,0 +1,6 @@
++#ifndef _ASM_SEGMENT_H
++#define _ASM_SEGMENT_H
++
++/* Only here because we have some old header files that expect it.. */
++
++#endif /* _ASM_SEGMENT_H */
diff --git a/target/linux/generic/patches-2.6.38/208-mips_oprofile_fix.patch b/target/linux/generic/patches-2.6.38/208-mips_oprofile_fix.patch
new file mode 100644
index 0000000000..2841ed883e
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/208-mips_oprofile_fix.patch
@@ -0,0 +1,47 @@
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -48,6 +48,9 @@ ifneq ($(SUBARCH),$(ARCH))
+   endif
+ endif
+ 
++ifndef CONFIG_PROFILING
++  cflags-y := -ffunction-sections
++endif
+ ifdef CONFIG_FUNCTION_GRAPH_TRACER
+   ifndef KBUILD_MCOUNT_RA_ADDRESS
+     ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
+--- a/arch/mips/oprofile/op_model_mipsxx.c
++++ b/arch/mips/oprofile/op_model_mipsxx.c
+@@ -298,6 +298,11 @@ static void reset_counters(void *arg)
+ 	}
+ }
+ 
++static irqreturn_t mipsxx_perfcount_int(int irq, void *dev_id)
++{
++	return mipsxx_perfcount_handler();
++}
++
+ static int __init mipsxx_init(void)
+ {
+ 	int counters;
+@@ -374,6 +379,10 @@ static int __init mipsxx_init(void)
+ 	save_perf_irq = perf_irq;
+ 	perf_irq = mipsxx_perfcount_handler;
+ 
++	if (cp0_perfcount_irq >= 0)
++		return request_irq(cp0_perfcount_irq, mipsxx_perfcount_int,
++			IRQF_SHARED, "Perfcounter", save_perf_irq);
++
+ 	return 0;
+ }
+ 
+@@ -381,6 +390,9 @@ static void mipsxx_exit(void)
+ {
+ 	int counters = op_model_mipsxx_ops.num_counters;
+ 
++	if (cp0_perfcount_irq >= 0)
++		free_irq(cp0_perfcount_irq, save_perf_irq);
++
+ 	counters = counters_per_cpu_to_total(counters);
+ 	on_each_cpu(reset_counters, (void *)(long)counters, 1);
+ 
diff --git a/target/linux/generic/patches-2.6.38/209-mini_fo.patch b/target/linux/generic/patches-2.6.38/209-mini_fo.patch
new file mode 100644
index 0000000000..9a1488e230
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/209-mini_fo.patch
@@ -0,0 +1,7786 @@
+--- a/fs/Kconfig
++++ b/fs/Kconfig
+@@ -182,6 +182,7 @@ source "fs/logfs/Kconfig"
+ source "fs/cramfs/Kconfig"
+ source "fs/squashfs/Kconfig"
+ source "fs/freevxfs/Kconfig"
++source "fs/mini_fo/Kconfig"
+ source "fs/minix/Kconfig"
+ source "fs/omfs/Kconfig"
+ source "fs/hpfs/Kconfig"
+--- a/fs/Makefile
++++ b/fs/Makefile
+@@ -74,6 +74,7 @@ obj-$(CONFIG_SQUASHFS)		+= squashfs/
+ obj-y				+= ramfs/
+ obj-$(CONFIG_HUGETLBFS)		+= hugetlbfs/
+ obj-$(CONFIG_CODA_FS)		+= coda/
++obj-$(CONFIG_MINI_FO)		+= mini_fo/
+ obj-$(CONFIG_MINIX_FS)		+= minix/
+ obj-$(CONFIG_FAT_FS)		+= fat/
+ obj-$(CONFIG_BFS_FS)		+= bfs/
+--- /dev/null
++++ b/fs/mini_fo/aux.c
+@@ -0,0 +1,577 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++/* check if file exists in storage  */
++int exists_in_storage(dentry_t *dentry)
++{
++	check_mini_fo_dentry(dentry);
++	if(dtost(dentry) == MODIFIED || dtost(dentry) == CREATED || dtost(dentry) == DEL_REWRITTEN)
++		return 1;
++	return 0;
++}
++
++/* check if dentry is in an existing state */
++int is_mini_fo_existant(dentry_t *dentry)
++{
++	check_mini_fo_dentry(dentry);
++
++	if(dtost(dentry) == DELETED || dtost(dentry) == NON_EXISTANT)
++		return 0;
++	else
++		return 1;
++}
++
++/*
++ * This function will create a negative storage dentry for
++ * dentry, what is required for many create like options.
++ * It will create the storage structure if necessary.
++ */
++int get_neg_sto_dentry(dentry_t *dentry)
++{
++	int err = 0;
++	unsigned int len;
++	const unsigned char *name;
++
++	if(!dentry ||
++	   !dtopd(dentry) ||
++	   !(dtost(dentry) == UNMODIFIED ||
++	     dtost(dentry) == NON_EXISTANT ||
++	     dtost(dentry) == DELETED)) {
++		printk(KERN_CRIT "mini_fo: get_neg_sto_dentry: invalid dentry passed.\n");
++		err = -1;
++		goto out;
++	}
++	/* Have we got a neg. dentry already? */
++	if(dtohd2(dentry)) {
++		err = 0;
++		goto out;
++	}
++	if(dtost(dentry->d_parent) == UNMODIFIED) {
++		/* build sto struct */
++		err = build_sto_structure(dentry->d_parent->d_parent, dentry->d_parent);
++		if(err ||
++		   dtost(dentry->d_parent) != MODIFIED) {
++			printk(KERN_CRIT "mini_fo: get_neg_sto_dentry: ERROR building sto structure.\n");
++			err = -1;
++			goto out;
++		}
++	}
++
++	len = dentry->d_name.len;
++	name = dentry->d_name.name;
++
++	dtohd2(dentry) =
++		lookup_one_len(name, dtohd2(dentry->d_parent), len);
++
++ out:
++	return err;
++}
++
++int check_mini_fo_dentry(dentry_t *dentry)
++{
++ 	ASSERT(dentry != NULL);
++	ASSERT(dtopd(dentry) != NULL);
++	ASSERT((dtohd(dentry) != NULL) || (dtohd2(dentry) != NULL));
++
++/* 	if(dtost(dentry) == MODIFIED) { */
++/* 		ASSERT(dentry->d_inode != NULL); */
++/* 		ASSERT(dtohd(dentry) != NULL); */
++/* 		ASSERT(dtohd(dentry)->d_inode != NULL); */
++/* 		ASSERT(dtohd2(dentry) != NULL); */
++/* 		ASSERT(dtohd2(dentry)->d_inode != NULL); */
++/* 	} */
++/* 	else if(dtost(dentry) == UNMODIFIED) { */
++/* 		ASSERT(dentry->d_inode != NULL); */
++/* 		ASSERT( */
++/* 	} */
++	return 0;
++}
++
++int check_mini_fo_file(file_t *file)
++{
++	ASSERT(file != NULL);
++	ASSERT(ftopd(file) != NULL);
++	ASSERT(file->f_dentry != NULL);
++
++	/* violent checking, check depending of state and type
++	 *	if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {}
++	 */
++	ASSERT((ftohf(file) != NULL) || (ftohf2(file) != NULL));
++	return 0;
++}
++
++int check_mini_fo_inode(inode_t *inode)
++{
++	ASSERT(inode != NULL);
++	ASSERT(itopd(inode) != NULL);
++	ASSERT((itohi(inode) != NULL) || (itohi2(inode) != NULL));
++	return 0;
++}
++
++/*
++ * will walk a base path as provided by get_mini_fo_bpath and return
++ * the (hopefully ;-) ) positive dentry of the renamed base dir.
++ *
++ * This does some work of path_init.
++ */
++dentry_t *bpath_walk(super_block_t *sb, char *bpath)
++{
++	int err;
++        struct vfsmount *mnt;
++	struct nameidata nd;
++
++	/* be paranoid */
++	if(!bpath || bpath[0] != '/') {
++		printk(KERN_CRIT "mini_fo: bpath_walk: Invalid string.\n");
++		return NULL;
++	}
++	if(!sb || !stopd(sb)) {
++		printk(KERN_CRIT "mini_fo: bpath_walk: Invalid sb.\n");
++		return NULL;
++	}
++
++	/* fix this: how do I reach this lock?
++	 * read_lock(&current->fs->lock); */
++	mnt = mntget(stopd(sb)->hidden_mnt);
++	/* read_unlock(&current->fs->lock); */
++
++	err = vfs_path_lookup(mnt->mnt_root, mnt, bpath+1, 0, &nd);
++
++	/* validate */
++	if (err || !nd.dentry || !nd.dentry->d_inode) {
++		printk(KERN_CRIT "mini_fo: bpath_walk: path_walk failed.\n");
++		return NULL;
++	}
++	return nd.dentry;
++}
++
++
++/* returns the full path of the basefile incl. its name */
++int get_mini_fo_bpath(dentry_t *dentry, char **bpath, int *bpath_len)
++{
++	char *buf_walker;
++	int len = 0;
++	dentry_t *sky_walker;
++
++	if(!dentry || !dtohd(dentry)) {
++		printk(KERN_CRIT "mini_fo: get_mini_fo_bpath: invalid dentry passed.\n");
++		return -1;
++	}
++	sky_walker = dtohd(dentry);
++
++	do {
++		len += sky_walker->d_name.len + 1 ; /* 1 for '/' */
++		sky_walker = sky_walker->d_parent;
++	} while(sky_walker != stopd(dentry->d_inode->i_sb)->base_dir_dentry);
++
++	/* 1 to oil the loop */
++	*bpath = (char*)  kmalloc(len + 1, GFP_KERNEL);
++	if(!*bpath) {
++		printk(KERN_CRIT "mini_fo: get_mini_fo_bpath: out of mem.\n");
++		return -1;
++	}
++	buf_walker = *bpath+len; /* put it on last char */
++	*buf_walker = '\n';
++	sky_walker = dtohd(dentry);
++
++	do {
++		buf_walker -= sky_walker->d_name.len;
++		strncpy(buf_walker,
++			sky_walker->d_name.name,
++			sky_walker->d_name.len);
++		*(--buf_walker) = '/';
++		sky_walker = sky_walker->d_parent;
++	} while(sky_walker != stopd(dentry->d_inode->i_sb)->base_dir_dentry);
++
++	/* bpath_len doesn't count newline! */
++	*bpath_len = len;
++ 	return 0;
++}
++
++int mini_fo_cp_cont(dentry_t *tgt_dentry, struct vfsmount *tgt_mnt,
++		    dentry_t *src_dentry, struct vfsmount *src_mnt)
++{
++	void *buf;
++	mm_segment_t old_fs;
++	file_t *tgt_file;
++	file_t *src_file;
++	int bytes, len, tmp, err;
++	err = 0;
++
++	if(!(tgt_dentry->d_inode && src_dentry->d_inode)) {
++		printk(KERN_CRIT "mini_fo_cp_cont: ERROR, neg. dentry passed.\n");
++		err = -EINVAL;
++		goto out;
++	}
++
++	dget(tgt_dentry);
++	dget(src_dentry);
++	mntget(tgt_mnt);
++	mntget(src_mnt);
++
++	/* open file write only */
++	tgt_file = dentry_open(tgt_dentry, tgt_mnt, 0x1);
++	if(!tgt_file || IS_ERR(tgt_file)) {
++		printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening target file.\n");
++		err = PTR_ERR(tgt_file);
++		goto out_err;
++	}
++
++	/* open file read only */
++	src_file = dentry_open(src_dentry, src_mnt, 0x0);
++	if(!src_file || IS_ERR(src_file)) {
++		printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening source file.\n");
++		err = PTR_ERR(src_file);
++
++		/* close target file */
++		fput(tgt_file);
++		goto out_err;
++	}
++
++	/* check if the filesystem(s) support read respective write */
++	if(!src_file->f_op->read || !tgt_file->f_op->write) {
++		printk(KERN_CRIT "mini_fo_cp_cont: ERROR, no fs read or write support.\n");
++		err = -EPERM;
++		goto out_close;
++	}
++
++	/* allocate a page for transfering the data */
++	buf = (void *) __get_free_page(GFP_KERNEL);
++	if(!buf) {
++		printk(KERN_CRIT "mini_fo_cp_cont: ERROR, out of kernel mem.\n");
++		goto out_err;
++	}
++
++	tgt_file->f_pos = 0;
++	src_file->f_pos = 0;
++
++	old_fs = get_fs();
++	set_fs(KERNEL_DS);
++
++	/* Doing this I assume that a read operation will return a full
++	 * buffer while there is still data to read, and a less than
++	 * full buffer when all data has been read.
++	 */
++	bytes = len = PAGE_SIZE;
++	while(bytes == len) {
++		bytes = src_file->f_op->read(src_file, buf, len,
++					     &src_file->f_pos);
++		tmp = tgt_file->f_op->write(tgt_file, buf, bytes,
++					    &tgt_file->f_pos);
++		if(tmp != bytes) {
++			printk(KERN_CRIT "mini_fo_cp_cont: ERROR writing.\n");
++			goto out_close_unset;
++		}
++	}
++
++	free_page((unsigned long) buf);
++	set_fs(old_fs);
++	fput(tgt_file);
++	fput(src_file);
++	goto out;
++
++ out_close_unset:
++	free_page((unsigned long) buf);
++	set_fs(old_fs);
++
++ out_close:
++	fput(tgt_file);
++	fput(src_file);
++
++ out_err:
++	dput(tgt_dentry);
++	dput(src_dentry);
++
++	/* mk: not sure if this need to be done */
++	mntput(tgt_mnt);
++	mntput(src_mnt);
++
++ out:
++	return err;
++}
++
++/* mk:
++ * ndl (no-duplicate list) stuff
++ * This is used in mini_fo_readdir, to save the storage directory contents
++ * and later when reading base, match them against the list in order
++ * to avoid duplicates.
++ */
++
++/* add a file specified by name and len to the ndl
++ * Return values: 0 on success, <0 on failure.
++ */
++int ndl_add_entry(struct readdir_data *rd, const char *name, int len)
++{
++	struct ndl_entry *tmp_entry;
++
++	tmp_entry = (struct ndl_entry *)
++		kmalloc(sizeof(struct ndl_entry), GFP_KERNEL);
++	if(!tmp_entry) {
++                printk(KERN_CRIT "mini_fo: ndl_add_entry: out of mem.\n");
++                return -ENOMEM;
++        }
++        tmp_entry->name = (char*) kmalloc(len, GFP_KERNEL);
++        if(!tmp_entry->name) {
++                printk(KERN_CRIT "mini_fo: ndl_add_entry: out of mem.\n");
++                return -ENOMEM;
++        }
++	strncpy(tmp_entry->name, name, len);
++        tmp_entry->len = len;
++
++        list_add(&tmp_entry->list, &rd->ndl_list);
++        rd->ndl_size++;
++        return 0;
++}
++
++/* delete all list entries and free memory */
++void ndl_put_list(struct readdir_data *rd)
++{
++	struct list_head *tmp;
++	struct ndl_entry *tmp_entry;
++
++	if(rd->ndl_size <= 0)
++		return;
++	while(!list_empty(&rd->ndl_list)) {
++		tmp = rd->ndl_list.next;
++                list_del(tmp);
++                tmp_entry = list_entry(tmp, struct ndl_entry, list);
++		kfree(tmp_entry->name);
++                kfree(tmp_entry);
++        }
++	rd->ndl_size = 0;
++}
++
++/* Check if a file specified by name and len is in the ndl
++ * Return value: 0 if not in list, 1 if file is found in ndl.
++ */
++int ndl_check_entry(struct readdir_data *rd, const char *name, int len)
++{
++	struct list_head *tmp;
++	struct ndl_entry *tmp_entry;
++
++	if(rd->ndl_size <= 0)
++		return 0;
++
++	list_for_each(tmp, &rd->ndl_list) {
++                tmp_entry = list_entry(tmp, struct ndl_entry, list);
++                if(tmp_entry->len != len)
++                        continue;
++                if(!strncmp(tmp_entry->name, name, len))
++                        return 1;
++        }
++        return 0;
++}
++
++/* mk:
++ * Recursive function to create corresponding directorys in the storage fs.
++ * The function will build the storage directorys up to dentry.
++ */
++int build_sto_structure(dentry_t *dir, dentry_t *dentry)
++{
++	int err;
++	dentry_t *hidden_sto_dentry;
++	dentry_t *hidden_sto_dir_dentry;
++
++	if(dentry->d_parent != dir) {
++		printk(KERN_CRIT "mini_fo: build_sto_structure: invalid parameter or meta data corruption [1].\n");
++		return 1;
++	}
++
++       	if(dtost(dir) != MODIFIED) {
++		err = build_sto_structure(dir->d_parent, dentry->d_parent);
++		if(err)
++			return err;
++	}
++
++	/* ok, coming back again. */
++	check_mini_fo_dentry(dentry);
++	hidden_sto_dentry = dtohd2(dentry);
++
++	if(!hidden_sto_dentry) {
++		/*
++		 * This is the case after creating the first
++		 * hidden_sto_dentry.
++		 * After one negative storage_dentry, all pointers to
++		 * hidden_storage dentries are set to NULL. We need to
++		 * create the negative dentry before we create the storage
++		 * file.
++		 */
++		unsigned int len;
++		const unsigned char *name;
++		len = dtohd(dentry)->d_name.len;
++		name = dtohd(dentry)->d_name.name;
++		hidden_sto_dentry = lookup_one_len(name, dtohd2(dir), len);
++		dtohd2(dentry) = hidden_sto_dentry;
++	}
++
++	/* was:	hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++	/* lets be safe */
++	if(dtohd2(dir) != hidden_sto_dir_dentry) {
++		printk(KERN_CRIT "mini_fo: build_sto_structure: invalid parameter or meta data corruption [2].\n");
++		return 1;
++	}
++
++	/* check for errors in lock_parent */
++	err = PTR_ERR(hidden_sto_dir_dentry);
++	if(IS_ERR(hidden_sto_dir_dentry)) {
++		printk(KERN_CRIT "mini_fo: build_sto_structure: lock_parent failed.\n");
++		return err;
++	}
++
++	err = vfs_mkdir(hidden_sto_dir_dentry->d_inode,
++			hidden_sto_dentry,
++			dir->d_inode->i_mode);
++
++	if(err) {
++		printk(KERN_CRIT "mini_fo: build_sto_structure: failed to create storage dir [1].\n");
++		/* was: unlock_dir(dir); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&dir->d_inode->i_mutex);
++#else
++		up(&dir->d_inode->i_sem);
++#endif
++		dput(dir);
++		return err;
++	}
++
++	/* everything ok! */
++	if(!dtohd2(dentry)->d_inode) {
++		printk(KERN_CRIT "mini_fo: build_sto_structure: failed to create storage dir [2].\n");
++		/* was: unlock_dir(dir); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&dir->d_inode->i_mutex);
++#else
++		up(&dir->d_inode->i_sem);
++#endif
++		dput(dir);
++		return 1;
++	}
++
++	/* interpose the new inode and set new state */
++	itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++	dtopd(dentry)->state = MODIFIED;
++
++	/* initalize the wol list */
++	itopd(dentry->d_inode)->deleted_list_size = -1;
++	itopd(dentry->d_inode)->renamed_list_size = -1;
++	meta_build_lists(dentry);
++
++	fist_copy_attr_all(dentry->d_inode, itohi2(dentry->d_inode));
++	fist_copy_attr_timesizes(dir->d_inode,
++				 hidden_sto_dir_dentry->d_inode);
++	dir->d_inode->i_nlink++;
++	/* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++	dput(hidden_sto_dir_dentry);
++	return 0;
++}
++
++
++#if 0 /* unused */
++
++/*
++ * Read "len" bytes from "filename" into "buf".
++ * "buf" is in kernel space.
++ */
++int
++mini_fo_read_file(const char *filename, void *buf, int len)
++{
++    file_t *filp;
++    mm_segment_t oldfs;
++    int bytes;
++    /* Chroot? Maybe NULL isn't right here */
++    filp = filp_open(filename, O_RDONLY, 0);
++    if (!filp || IS_ERR(filp)) {
++	printk("mini_fo_read_file err %d\n", (int) PTR_ERR(filp));
++	return -1;  /* or do something else */
++    }
++
++    if (!filp->f_op->read)
++	return -2;  /* file(system) doesn't allow reads */
++
++    /* now read len bytes from offset 0 */
++    filp->f_pos = 0;		/* start offset */
++    oldfs = get_fs();
++    set_fs(KERNEL_DS);
++    bytes = filp->f_op->read(filp, buf, len, &filp->f_pos);
++    set_fs(oldfs);
++
++    /* close the file */
++    fput(filp);
++
++    return bytes;
++}
++
++
++
++/*
++ * Write "len" bytes from "buf" to "filename"
++ * "buf" is in kernel space.
++ */
++int
++mini_fo_write_file(const char *filename, void *buf, int len)
++{
++    file_t *filp;
++    mm_segment_t oldfs;
++    int bytes;
++				/* Chroot? Maybe NULL isn't right here */
++    filp = filp_open(filename, O_RDWR|O_CREAT, 0640);
++    if (!filp || IS_ERR(filp)) {
++	printk("mini_fo_write_file err %d\n", (int) PTR_ERR(filp));
++	return -1;  /* or do something else */
++    }
++
++    if (!filp->f_op->write)
++	return -2;  /* file(system) doesn't allow writes */
++
++    /* now write len bytes from offset 0 */
++    filp->f_pos = 0;		/* start offset */
++    oldfs = get_fs();
++    set_fs(KERNEL_DS);
++    bytes = filp->f_op->write(filp, buf, len, &filp->f_pos);
++    set_fs(oldfs);
++
++    /* close the file */
++    fput(filp);
++
++    return bytes;
++}
++
++#endif /* unused */
++
+--- /dev/null
++++ b/fs/mini_fo/ChangeLog
+@@ -0,0 +1,281 @@
++2006-01-24  Markus Klotzbuecher  <mk@mary.denx.de>
++
++	* Add tons of ugly ifdefs to Ed L. Cashin's mutex patch to
++          retain backwards compatibility.
++
++2006-01-24  Ed L. Cashin <ecashin@coraid.com>
++
++	* Support for the new mutex infrastructure
++	(7892f2f48d165a34b0b8130c8a195dfd807b8cb6)
++
++2005-10-15  Markus Klotzbuecher  <mk@localhost.localdomain>
++
++	* Bugfix for a serious memory leak in mini_fo_follow_link.
++
++2005-09-21  Markus Klotzbuecher  <mk@mary>
++
++	* new release 0.6.1
++
++	* fix of a compiler warning due to changes in 2.6.13
++
++2005-09-21  Klaus Wenninger  <klaus.wenninger@siemens.com>
++
++	* file.c: readdir: fix for a bug that caused directory entries
++          to show up twice when using storage filesystems such as
++          minixfs or pramfs.
++
++2005-06-30  Eric Lammerts <eric@lammerts.org>
++
++	* fix for an oops when overwriting a binary thats beeing
++          executed.
++
++2005-06-09    <mk@mary>
++
++	* Renamed overlay to mini_fo-overlay.
++
++	* Added mini_fo-merge script to allow merging of storage and base
++	after making modifications.
++
++2005-05-22  root  <mk@mary>
++
++	* Added overlay script that allows to easily mount mini_fo ontop
++	of a given base directory
++
++2005-05-10    <mk@mary>
++
++	* inode.c: xattr functions return -EOPNOSUPP instead of
++          -ENOSUPP, what confuses "ls -l"
++
++	* Changed license from LGPL to GPL.
++
++2005-05-08  root  <mk@mary>
++
++	* Makefile: clean it up and added make install and make
++          uninstall.
++
++2005-05-06    <mk@mary>
++
++	* merged devel branch back to main. [v0-6-0-pre3]
++
++	* removed unused files print.c and fist_ioctl. [devel-0-0-18]
++
++	* ioctl: removed fist_ioctl stuff, that is not needed for
++          now.
++
++2005-05-03    <mk@mary>
++
++	* file.c: simplified mini_fo_open and mini_fo_setattr using
++          new state changing functions. [devel-0-0-17]
++
++	* inode.c: Fixed getattr state bug (see below) in 2.4 function
++          mini_fo_inode revalidate.
++
++	* inode.c: found an other bug in mini_fo_getattr. States are not
++	  reliable in this function, as a file can be opened, unlinked and
++	  the getattr function called. This results in a deleted dentry
++	  with an inode. Fix is to ignore states and simply use the inode
++	  available.
++
++2005-04-29    <mk@mary>
++
++	* file.c: Bugfix and cleanup in fasync and fsync. [devel-0-0-16]
++
++	* file.c: do not use mini_fo_lock so the generic version is
++          used (I guess).
++
++	* inode.c: getattr, never call getattr on lower files, as this
++          will cause the inum to change.
++
++	* inode.c: rename_reg_file renamed to rename_nondir, as it
++          doesn't matter as long it't not a dir. Removed all
++          rename_dev_file etc.
++
++	* tagged as devel-0-0-15
++
++	* inode.c: added support for chosing support for extended
++          attrs at compile time by XATTR define in mini_fo.h .
++
++	* inode.c: fixed mini_fo_getattr to use mini_fo inode and not
++          lower again, what avoids inode number changes that confused
++          rm again. This is the proper solution.
++
++2005-04-24    <mk@mary>
++
++	* all files: updated Copyright notive to 2005. [devel-0-0-14]
++
++	* inode.c: fixed mini_fo_getattr to not change the inode
++          number, even if lower files change.
++
++	* super.c: fixed a bug that caused deleted base file to show
++          up suddenly after some time, or after creating a special
++          file. The problem was that after some time or after special
++          file creating sync_sb_inodes is called by the vfs, that
++          called our mini_fo_put_inode. There was (wrongly) called
++          __meta_put_lists, that nuked the lists, although the inode
++          was going to continue its life. Moving __meta_put_lists to
++          mini_fo_clear_inode, where an inode is really destroyed,
++          solved the problem.
++
++
++2005-04-23    <mk@mary>
++
++	* state.c, aux.c: more cleaning up and
++          simplifications. [devel-0-0-13]
++
++	* inode.c: implemented mini_fo_getattr, that was required for
++          2.6 because inode_revalidate has been remove there, and the
++	  old "du" bug returned.
++
++
++2005-04-20    <mk@mary>
++
++	* aux.c: get_neg_sto_dentry(): allow to be called for dentries
++          in state UNMODIFIED, NON_EXISTANT _and_ DELETED.
++
++2005-04-19    <mk@mary>
++
++	* Fixed a bug under 2.6 that caused files deleted via mini_fo
++          not to be deleted properly and therefore the fs filled up
++          untill no memory was left. [devel-0-0-12]
++
++	* Added basic hard link support. This means that creating
++          hardlinks will work, but existing ones will be treated as
++          individual files. [devel-0-0-11]
++
++2005-04-17    <mk@mary>
++
++	* Bugfixes
++
++2005-04-13  root  <mk@mary>
++
++	* Added file state.c for the state transition
++          functions. Doesn't work very well yet, though...
++
++2005-04-12    <mk@mary>
++
++	* Porting to 2.6 started, which is easier than expected, also
++          due to Olivier previous work.
++
++2005-04-08    <mk@mary>
++
++	* Fixed the bug that caused du to return invalid sizes of
++          directory trees. The problem was that
++          mini_fo_inode_revalidate didn't always copy the attributes
++          from the base inode properly.
++
++2005-04-01  Markus Klotzbuecher  <mk@chasey>
++
++	* Merged devel branch back to main trunk and updated the
++          RELEASE notes. This will be 0-6-0-pre1.
++
++2005-03-31  Markus Klotzbuecher  <mk@chasey>
++
++	* Fixed some bugs in rename_reg_file, that only showed up in
++          the kernel compile test. Kernel compiles cleanly ontop of
++          mini_fo, now also make mrproper etc. work. Seems pretty stable.
++
++2005-03-28  Markus Klotzbuecher  <mk@chasey>
++
++	* Many, many directory renaming bugfixes and a lot of other
++          cleanup. Dir renaming seems to work relatively stable.
++
++2005-03-22  Markus Klotzbuecher  <mk@chasey>
++
++	* Finished implementing lightweight directory renaming. Some
++          basic testing indicates it works fine.
++	  Next is to implement testcases for the testsuite and confirm
++          everything is really working ok.
++
++2005-03-18  Markus Klotzbuecher  <mk@chasey>
++
++	* Finished implementing meta.c stuff required for directory
++          renaming.
++
++2005-03-17  Markus Klotzbuecher  <mk@chasey>
++
++	* Fixed all compile warnings + an extremly old bug that
++          somehow crept in while reworking the wol stuff to the META
++          system. Turning on -Werror again... :-)
++
++	* Fixed some bugs in the new rename_reg_file function.
++
++	* Rewrote mini_fo rename and split it into several
++          subfunctions, that handle the different types
++          seperately. Rewrote the regular file function aswell, as it
++          was implemented somewhat inefficient.
++
++2005-03-16  Markus Klotzbuecher  <mk@chasey>
++
++	* Implemented new META subsystem, removed old WOL stuff in favor
++	  if it.
++
++	* After some basic testing everything seems ok...
++
++2005-03-11  Markus Klotzbuecher  <mk@chasey>
++
++	* Renaming a non regular file caused trouble because I always
++	  tried to copy the contents. Now I only do this for regular
++	  files. mini_fo_rename still isn't implemented properly, renaming
++	  of device files, symlinks etc. results in a empty regular file
++	  instead of the proper type.
++
++	* Directory renaming suddenly works! What a surprise! I guess
++          this is because renaming is implemented as making a copy and
++          removing the original. Still this might not work
++          everywhere...
++
++2005-03-09  Markus Klotzbuecher  <mk@chasey>
++
++	* Bugfix, when a mini_fo directory that exists in storage
++  	  (state: MODIFIED, CREATED and DEL_REWRITTEN) is deleted, a
++  	  possibly existing WOL file contained in it needs to be
++  	  deleted too.
++
++	* Starting cleanup: defined state names in order to get rid of
++          the state numbers.
++
++2005-03-08  Markus Klotzbuecher  <mk@chasey>
++
++	* Makefile fix, fist_ioctl was built against wrong sources if ARCH=um
++
++	* Fixed a bug in dentry.c, mini_fo_d_hash. In state 4 =
++          DEL_REWRITTEN the hash was calculated from the base dentry,
++          which was wrong and and caused assertions in
++          __mini_fo_hidden_dentry to fail.
++
++2005-02-21    <mk@mary>
++
++	* Implemented directory deleting (inode.c)
++
++	* main.c: made mini_fo_parse_options a little more robust.
++
++2004-12-22    <mk@mary>
++
++	* Makefile cleanup and uml stuff, removed unneccessary files
++
++	* Created a new and hopefully more informative README
++
++	* CHANGELOG: created a new CHANGELOG and added old entries reversely
++
++
++2004-10-24 Gleb Natapov <gleb@nbase.co.il>
++
++	* Fix: owner and group where not correctly copied from base to
++          storage.
++
++
++2004-10-05 Gleb Natapov <gleb@nbase.co.il>
++
++	* Implementation of fsync, fasync and lock mini_fo functions.
++
++
++2004-09-29 Bob Lee <bob@pantasys.com>
++
++	* Fix of a serious pointer bug
++
++
++2004-09-28 Gleb Natapov <gleb@nbase.co.il>
++
++	* Implementation of mini_fo_mknod and mini_fo_rename, support
++          for device files.
++
+--- /dev/null
++++ b/fs/mini_fo/dentry.c
+@@ -0,0 +1,244 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++/*
++ * THIS IS A BOOLEAN FUNCTION: returns 1 if valid, 0 otherwise.
++ */
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_d_revalidate(dentry_t *dentry, struct nameidata *nd)
++#else
++mini_fo_d_revalidate(dentry_t *dentry, int flags)
++#endif
++{
++	int err1 = 1; /* valid = 1, invalid = 0 */
++	int err2 = 1;
++	dentry_t *hidden_dentry;
++	dentry_t *hidden_sto_dentry;
++
++
++	check_mini_fo_dentry(dentry);
++
++	hidden_dentry  = dtohd(dentry);
++	hidden_sto_dentry = dtohd2(dentry);
++
++	if(hidden_dentry &&
++	   hidden_dentry->d_op &&
++	   hidden_dentry->d_op->d_revalidate) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++		err1 = hidden_dentry->d_op->d_revalidate(hidden_dentry, nd);
++#else
++		err1 = hidden_dentry->d_op->d_revalidate(hidden_dentry, flags);
++#endif
++	}
++	if(hidden_sto_dentry &&
++	   hidden_sto_dentry->d_op &&
++	   hidden_sto_dentry->d_op->d_revalidate) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++		err2 = hidden_sto_dentry->d_op->d_revalidate(hidden_sto_dentry,
++							     nd);
++#else
++		err2 = hidden_sto_dentry->d_op->d_revalidate(hidden_sto_dentry,
++							     flags);
++#endif
++	}
++
++	/* mk: if one of the lower level dentries are valid,
++	 * the mini_fo dentry is too.
++	 */
++	return (err1 || err2);
++}
++
++
++STATIC int
++mini_fo_d_hash(dentry_t *dentry, qstr_t *name)
++{
++	int err = 0;
++	dentry_t *hidden_dentry;
++	dentry_t *hidden_sto_dentry;
++
++	/* hidden_dentry = mini_fo_hidden_dentry(dentry);
++	 * hidden_sto_dentry = mini_fo_hidden_sto_dentry(dentry); */
++
++	/* state 1, 3, 4, 5: build the hash for the storage dentry */
++	if((dtopd(dentry)->state == MODIFIED) ||
++	   (dtopd(dentry)->state == CREATED) ||
++	   (dtopd(dentry)->state == DEL_REWRITTEN) ||
++	   (dtopd(dentry)->state == DELETED)) {
++		hidden_sto_dentry = dtohd2(dentry);
++		if(hidden_sto_dentry &&
++		   hidden_sto_dentry->d_op &&
++		   hidden_sto_dentry->d_op->d_hash) {
++			err = hidden_sto_dentry->d_op->d_hash(hidden_sto_dentry, name);
++		}
++		goto out;
++	}
++	/* state 2: build the hash for the base dentry */
++	if(dtopd(dentry)->state == UNMODIFIED) {
++		hidden_dentry = dtohd(dentry);
++		if(hidden_dentry &&
++		   hidden_dentry->d_op &&
++		   hidden_dentry->d_op->d_hash) {
++			err = hidden_dentry->d_op->d_hash(hidden_dentry, name);
++		}
++		goto out;
++	}
++	/* state 6: build hash for the dentry that exists */
++	if(dtopd(dentry)->state == NON_EXISTANT) {
++		hidden_sto_dentry = dtohd2(dentry);
++		if(hidden_sto_dentry &&
++		   hidden_sto_dentry->d_op &&
++		   hidden_sto_dentry->d_op->d_hash) {
++			err = hidden_sto_dentry->d_op->d_hash(hidden_sto_dentry, name);
++			goto out;
++		}
++		hidden_dentry = dtohd(dentry);
++		if(hidden_dentry &&
++		   hidden_dentry->d_op &&
++		   hidden_dentry->d_op->d_hash) {
++			err = hidden_dentry->d_op->d_hash(hidden_dentry, name);
++			goto out;
++		}
++	}
++
++	printk(KERN_CRIT "mini_fo: d_hash: invalid state detected.\n");
++
++ out:
++	return err;
++}
++
++
++STATIC int
++mini_fo_d_compare(dentry_t *dentry, qstr_t *a, qstr_t *b)
++{
++	int err;
++	dentry_t *hidden_dentry=NULL;
++
++	/* hidden_dentry = mini_fo_hidden_dentry(dentry); */
++	if(dtohd2(dentry))
++		hidden_dentry = dtohd2(dentry);
++	else if(dtohd(dentry))
++		hidden_dentry = dtohd(dentry);
++
++	if (hidden_dentry && hidden_dentry->d_op && hidden_dentry->d_op->d_compare) {
++		err = hidden_dentry->d_op->d_compare(hidden_dentry, a, b);
++	} else {
++		err = ((a->len != b->len) || memcmp(a->name, b->name, b->len));
++	}
++
++	return err;
++}
++
++
++int
++mini_fo_d_delete(dentry_t *dentry)
++{
++	dentry_t *hidden_dentry;
++	dentry_t *hidden_sto_dentry;
++	int err = 0;
++
++	/* this could be a negative dentry, so check first */
++	if (!dtopd(dentry)) {
++		printk(KERN_CRIT "mini_fo_d_delete: negative dentry passed.\n");
++		goto out;
++	}
++	hidden_dentry = dtohd(dentry);
++	hidden_sto_dentry = dtohd2(dentry);
++
++	if(hidden_dentry) {
++		if(hidden_dentry->d_op &&
++		   hidden_dentry->d_op->d_delete) {
++			err = hidden_dentry->d_op->d_delete(hidden_dentry);
++		}
++	}
++	if(hidden_sto_dentry) {
++		if(hidden_sto_dentry->d_op &&
++		   hidden_sto_dentry->d_op->d_delete) {
++			err = hidden_sto_dentry->d_op->d_delete(hidden_sto_dentry);
++		}
++	}
++
++ out:
++	return err;
++}
++
++
++void
++mini_fo_d_release(dentry_t *dentry)
++{
++	dentry_t *hidden_dentry;
++	dentry_t *hidden_sto_dentry;
++
++
++	/* this could be a negative dentry, so check first */
++	if (!dtopd(dentry)) {
++		printk(KERN_CRIT "mini_fo_d_release: no private data.\n");
++		goto out;
++	}
++	hidden_dentry = dtohd(dentry);
++	hidden_sto_dentry = dtohd2(dentry);
++
++	if(hidden_dentry) {
++		/* decrement hidden dentry's counter and free its inode */
++		dput(hidden_dentry);
++	}
++	if(hidden_sto_dentry) {
++                /* decrement hidden dentry's counter and free its inode */
++		dput(hidden_sto_dentry);
++	}
++
++	/* free private data (mini_fo_dentry_info) here */
++	kfree(dtopd(dentry));
++	__dtopd(dentry) = NULL;	/* just to be safe */
++ out:
++	return;
++}
++
++
++/*
++ * we don't really need mini_fo_d_iput, because dentry_iput will call iput() if
++ * mini_fo_d_iput is not defined. We left this implemented for ease of
++ * tracing/debugging.
++ */
++void
++mini_fo_d_iput(dentry_t *dentry, inode_t *inode)
++{
++	iput(inode);
++}
++
++
++struct dentry_operations mini_fo_dops = {
++	d_revalidate:	mini_fo_d_revalidate,
++	d_hash:		mini_fo_d_hash,
++	d_compare:		mini_fo_d_compare,
++	d_release:		mini_fo_d_release,
++	d_delete:		mini_fo_d_delete,
++	d_iput:		mini_fo_d_iput,
++};
+--- /dev/null
++++ b/fs/mini_fo/file.c
+@@ -0,0 +1,713 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
++
++/*******************
++ * File Operations *
++ *******************/
++
++STATIC loff_t
++mini_fo_llseek(file_t *file, loff_t offset, int origin)
++{
++	loff_t err;
++	file_t *hidden_file = NULL;
++
++	if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {
++		/* Check if trying to llseek from a directory */
++		err = -EISDIR;
++		goto out;
++	}
++	if (ftopd(file) != NULL) {
++		if(ftohf2(file)) {
++			hidden_file = ftohf2(file);
++		} else {
++			hidden_file = ftohf(file);
++		}
++	}
++
++	/* always set hidden position to this one */
++	hidden_file->f_pos = file->f_pos;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++	memcpy(&(hidden_file->f_ra),
++	       &(file->f_ra),
++	       sizeof(struct file_ra_state));
++#else
++	if (file->f_reada) { /* update readahead information if needed */
++		hidden_file->f_reada = file->f_reada;
++		hidden_file->f_ramax = file->f_ramax;
++		hidden_file->f_raend = file->f_raend;
++		hidden_file->f_ralen = file->f_ralen;
++		hidden_file->f_rawin = file->f_rawin;
++	}
++#endif
++	if (hidden_file->f_op && hidden_file->f_op->llseek)
++		err = hidden_file->f_op->llseek(hidden_file, offset, origin);
++	else
++		err = generic_file_llseek(hidden_file, offset, origin);
++
++	if (err < 0)
++		goto out;
++
++	if (err != file->f_pos) {
++		file->f_pos = err;
++		// ION maybe this?
++		// 	file->f_pos = hidden_file->f_pos;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++		file->f_reada = 0;
++#endif
++		file->f_version++;
++	}
++
++ out:
++	return err;
++}
++
++
++/* mk: fanout capable */
++STATIC ssize_t
++mini_fo_read(file_t *file, char *buf, size_t count, loff_t *ppos)
++{
++	int err = -EINVAL;
++	file_t *hidden_file = NULL;
++	loff_t pos = *ppos;
++
++	if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {
++		/* Check if trying to read from a directory */
++		/* printk(KERN_CRIT "mini_fo_read: ERROR: trying to read data from a directory.\n"); */
++		err = -EISDIR;
++		goto out;
++	}
++
++	if (ftopd(file) != NULL) {
++		if(ftohf2(file)) {
++			hidden_file = ftohf2(file);
++		} else {
++			hidden_file = ftohf(file);
++		}
++	}
++
++	if (!hidden_file->f_op || !hidden_file->f_op->read)
++		goto out;
++
++	err = hidden_file->f_op->read(hidden_file, buf, count, &pos);
++	*ppos = pos;
++
++	if (err >= 0) {
++		/* atime should also be updated for reads of size zero or more */
++		fist_copy_attr_atime(file->f_dentry->d_inode,
++				     hidden_file->f_dentry->d_inode);
++	}
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++	/*
++	 * MAJOR HACK
++	 * because pread() does not have any way to tell us that it is
++	 * our caller, then we don't know for sure if we have to update
++	 * the file positions.  This hack relies on read() having passed us
++	 * the "real" pointer of its struct file's f_pos field.
++	 */
++	if (ppos == &file->f_pos)
++		hidden_file->f_pos = *ppos = pos;
++	if (hidden_file->f_reada) { /* update readahead information if needed */
++		file->f_reada = hidden_file->f_reada;
++		file->f_ramax = hidden_file->f_ramax;
++		file->f_raend = hidden_file->f_raend;
++		file->f_ralen = hidden_file->f_ralen;
++		file->f_rawin = hidden_file->f_rawin;
++	}
++#else
++	memcpy(&(file->f_ra),&(hidden_file->f_ra),sizeof(struct file_ra_state));
++#endif
++
++ out:
++	return err;
++}
++
++
++/* this mini_fo_write() does not modify data pages! */
++STATIC ssize_t
++mini_fo_write(file_t *file, const char *buf, size_t count, loff_t *ppos)
++{
++	int err = -EINVAL;
++	file_t *hidden_file = NULL;
++	inode_t *inode;
++	inode_t *hidden_inode;
++	loff_t pos = *ppos;
++
++	/* mk: fan out: */
++	if (ftopd(file) != NULL) {
++		if(ftohf2(file)) {
++			hidden_file = ftohf2(file);
++		} else {
++			/* This is bad! We have no storage file to write to. This
++			 * should never happen because if a file is opened for
++			 * writing, a copy should have been made earlier.
++			 */
++			printk(KERN_CRIT "mini_fo: write : ERROR, no storage file to write.\n");
++			err = -EINVAL;
++			goto out;
++		}
++	}
++
++	inode = file->f_dentry->d_inode;
++	hidden_inode = itohi2(inode);
++	if(!hidden_inode) {
++		printk(KERN_CRIT "mini_fo: write: no sto inode found, not good.\n");
++		goto out;
++	}
++
++	if (!hidden_file->f_op || !hidden_file->f_op->write)
++		goto out;
++
++	/* adjust for append -- seek to the end of the file */
++	if (file->f_flags & O_APPEND)
++		pos = inode->i_size;
++
++	err = hidden_file->f_op->write(hidden_file, buf, count, &pos);
++
++	/*
++	 * copy ctime and mtime from lower layer attributes
++	 * atime is unchanged for both layers
++	 */
++	if (err >= 0)
++		fist_copy_attr_times(inode, hidden_inode);
++
++	*ppos = pos;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++	/*
++	 * XXX: MAJOR HACK
++	 *
++	 * because pwrite() does not have any way to tell us that it is
++	 * our caller, then we don't know for sure if we have to update
++	 * the file positions.  This hack relies on write() having passed us
++	 * the "real" pointer of its struct file's f_pos field.
++	 */
++	if (ppos == &file->f_pos)
++		hidden_file->f_pos = *ppos = pos;
++#endif
++	/* update this inode's size */
++	if (pos > inode->i_size)
++		inode->i_size = pos;
++
++ out:
++	return err;
++}
++
++/* Global variable to hold a file_t pointer.
++ * This serves to allow mini_fo_filldir function to know which file is
++ * beeing read, which is required for two reasons:
++ *
++ *   - be able to call wol functions in order to avoid listing deleted
++ *     base files.
++ *   - if we're reading a directory which is in state 1, we need to
++ *     maintain a list (in mini_fo_filldir) of which files allready
++ *     have been copied to userspace,to detect files existing in base
++ *     and storage and not list them twice.
++ */
++filldir_t mini_fo_filldir_orig;
++file_t *mini_fo_filldir_file;
++
++/* mainly copied from fs/readdir.c */
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_filldir(void * __buf, const char * name, int namlen, loff_t offset,
++		  u64 ino, unsigned int d_type)
++#else
++mini_fo_filldir(void * __buf, const char * name, int namlen, loff_t offset,
++		  ino_t ino, unsigned int d_type)
++#endif
++{
++	struct getdents_callback * buf = (struct getdents_callback *) __buf;
++	file_t* file = mini_fo_filldir_file;
++
++	/* In theses states we filter meta files in storage (WOL) */
++	if(file && (dtopd(file->f_dentry)->state == MODIFIED ||
++		    dtopd(file->f_dentry)->state == CREATED ||
++		    dtopd(file->f_dentry)->state == DEL_REWRITTEN)) {
++
++		int tmp = strlen(META_FILENAME);
++		if(tmp  == namlen) {
++			if(!strncmp(name, META_FILENAME, namlen))
++				return 0;
++		}
++	}
++
++	/* check if we are merging the contents of storage and base */
++	if(file && dtopd(file->f_dentry)->state == MODIFIED) {
++		/* check if we are still reading storage contents, if
++		 * yes, we just save the name of the file for duplicate
++		 * checking later. */
++
++		if(!ftopd(file)->rd.sto_done) {
++			/* put file into ndl list */
++			if(ndl_add_entry(&ftopd(file)->rd, name, namlen))
++				printk(KERN_CRIT "mini_fo_filldir: Error adding to ndl.\n");
++		} else {
++			/* check if file has been deleted */
++			if(meta_check_d_entry(file->f_dentry, name, namlen))
++				return 0;
++
++			/* do duplicate checking */
++			if(ndl_check_entry(&ftopd(file)->rd, name, namlen))
++				return 0;
++		}
++	}
++
++	return mini_fo_filldir_orig(buf, name, namlen, offset, ino, d_type);
++}
++
++
++STATIC int
++mini_fo_readdir(file_t *file, void *dirent, filldir_t filldir)
++{
++	int err = 0;/* mk: ??? -ENOTDIR; */
++	file_t *hidden_file = NULL;
++	file_t *hidden_sto_file = NULL;
++	inode_t *inode;
++	struct getdents_callback *buf;
++	int oldcount;
++
++#if defined(FIST_FILTER_NAME) || defined(FIST_FILTER_SCA)
++	struct mini_fo_getdents_callback buf;
++#endif /* FIST_FILTER_NAME || FIST_FILTER_SCA */
++
++	buf = (struct getdents_callback *) dirent;
++	oldcount = buf->count;
++	inode = file->f_dentry->d_inode;
++	mini_fo_filldir_file = file;
++	mini_fo_filldir_orig = filldir;
++
++	ftopd(file)->rd.sto_done = 0;
++	do {
++		if (ftopd(file) != NULL) {
++			if(ftohf2(file)) {
++				hidden_sto_file = ftohf2(file);
++				err = vfs_readdir(hidden_sto_file, mini_fo_filldir, dirent);
++				file->f_pos = hidden_sto_file->f_pos;
++				if (err > 0)
++					fist_copy_attr_atime(inode, hidden_sto_file->f_dentry->d_inode);
++				/* not finshed yet, we'll be called again */
++				if (buf->count != oldcount)
++					break;
++			}
++
++			ftopd(file)->rd.sto_done = 1;
++
++			if(ftohf(file)) {
++				hidden_file = ftohf(file);
++				err = vfs_readdir(hidden_file, mini_fo_filldir, dirent);
++				file->f_pos = hidden_file->f_pos;
++				if (err > 0)
++					fist_copy_attr_atime(inode, hidden_file->f_dentry->d_inode);
++			}
++
++		}
++	} while (0);
++
++	/* mk:
++	 * we need to check if all the directory data has been copied to userspace,
++	 * or if we will be called again by userspace to complete the operation.
++	 */
++	if(buf->count == oldcount) {
++		ndl_put_list(&ftopd(file)->rd);
++	}
++
++	/* unset this, safe */
++	mini_fo_filldir_file = NULL;
++	return err;
++}
++
++
++STATIC unsigned int
++mini_fo_poll(file_t *file, poll_table *wait)
++{
++	unsigned int mask = DEFAULT_POLLMASK;
++	file_t *hidden_file = NULL;
++
++	if (ftopd(file) != NULL) {
++		if(ftohf2(file)) {
++			hidden_file = ftohf2(file);
++		} else {
++			hidden_file = ftohf(file);
++		}
++	}
++
++	if (!hidden_file->f_op || !hidden_file->f_op->poll)
++		goto out;
++
++	mask = hidden_file->f_op->poll(hidden_file, wait);
++
++ out:
++	return mask;
++}
++
++/* FIST-LITE special version of mmap */
++STATIC int
++mini_fo_mmap(file_t *file, vm_area_t *vma)
++{
++	int err = 0;
++	file_t *hidden_file = NULL;
++
++	/* fanout capability */
++	if (ftopd(file) != NULL) {
++		if(ftohf2(file)) {
++			hidden_file = ftohf2(file);
++		} else {
++			hidden_file = ftohf(file);
++		}
++	}
++
++	ASSERT(hidden_file != NULL);
++	ASSERT(hidden_file->f_op != NULL);
++	ASSERT(hidden_file->f_op->mmap != NULL);
++
++	vma->vm_file = hidden_file;
++	err = hidden_file->f_op->mmap(hidden_file, vma);
++	get_file(hidden_file); /* make sure it doesn't get freed on us */
++	fput(file);	       /* no need to keep extra ref on ours */
++
++	return err;
++}
++
++
++
++STATIC int
++mini_fo_open(inode_t *inode, file_t *file)
++{
++	int err = 0;
++ 	int hidden_flags;
++	file_t *hidden_file = NULL;
++	dentry_t *hidden_dentry = NULL;
++
++	/* fanout stuff */
++	file_t *hidden_sto_file = NULL;
++	dentry_t *hidden_sto_dentry = NULL;
++
++	__ftopd(file) =
++		kmalloc(sizeof(struct mini_fo_file_info), GFP_KERNEL);
++	if (!ftopd(file)) {
++		err = -ENOMEM;
++		goto out;
++	}
++
++	/* init the readdir_helper structure */
++	INIT_LIST_HEAD(&ftopd(file)->rd.ndl_list);
++	ftopd(file)->rd.ndl_size = 0;
++
++	/* In certain paths this could stay uninitalized and cause trouble */
++	ftohf(file) = NULL;
++	ftohf2(file) = NULL;
++	hidden_flags = file->f_flags;
++
++	/* create storage files? */
++	if(dtost(file->f_dentry) == UNMODIFIED) {
++		if(!IS_WRITE_FLAG(file->f_flags)) {
++			hidden_dentry = dtohd(file->f_dentry);
++			dget(hidden_dentry);
++			/* dentry_open will decrement mnt refcnt if err.
++			 * otherwise fput() will do an mntput() for us upon file close. */
++			mntget(stopd(inode->i_sb)->hidden_mnt);
++			hidden_file = dentry_open(hidden_dentry,
++						  stopd(inode->i_sb)->hidden_mnt,
++						  hidden_flags);
++			if (IS_ERR(hidden_file)) {
++				err = PTR_ERR(hidden_file);
++				dput(hidden_dentry);
++				goto out;
++			}
++			ftohf(file) = hidden_file;	/* link two files */
++			goto out;
++		}
++		else {
++			if(S_ISDIR(file->f_dentry->d_inode->i_mode)) {
++				err = dir_unmod_to_mod(file->f_dentry);
++			} else
++				err = nondir_unmod_to_mod(file->f_dentry, 1);
++
++			if (err) {
++				printk("mini_fo_open: ERROR creating storage file.\n");
++				goto out;
++			}
++		}
++	}
++	hidden_sto_dentry = dtohd2(file->f_dentry);
++	dget(hidden_sto_dentry);
++
++	if(dtopd(file->f_dentry)->state == MODIFIED) {
++		/* Directorys are special, interpose on both lower level files */
++		if(S_ISDIR(itohi(inode)->i_mode)) {
++			/* check for invalid file types of lower level files */
++			if(!(S_ISDIR(itohi(inode)->i_mode) && S_ISDIR(itohi2(inode)->i_mode))) {
++				printk(KERN_CRIT "mini_fo_open: meta data corruption detected.\n");
++				dput(hidden_sto_dentry);
++				err = -EINVAL;
++				goto out;
++			}
++
++			/* lower level directorys are ok, open the base file */
++			hidden_dentry = dtohd(file->f_dentry);
++			dget(hidden_dentry);
++
++			mntget(stopd(inode->i_sb)->hidden_mnt);
++			hidden_file = dentry_open(hidden_dentry,
++						  stopd(inode->i_sb)->hidden_mnt,
++						  hidden_flags);
++			if (IS_ERR(hidden_file)) {
++				err = PTR_ERR(hidden_file);
++				dput(hidden_dentry);
++				dput(hidden_sto_dentry);
++				goto out;
++			}
++			ftohf(file) = hidden_file; /* link the two files */
++		}
++	}
++
++	if(!exists_in_storage(file->f_dentry)) {
++		printk(KERN_CRIT "mini_fo_open: invalid file state detected.\n");
++		err = -EINVAL;
++		dput(hidden_sto_dentry);
++
++		/* If the base file has been opened, we need to close it here */
++		if(ftohf(file)) {
++			if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++				hidden_file->f_op->flush(hidden_file, NULL);
++#else
++				hidden_file->f_op->flush(hidden_file);
++#endif
++			dput(hidden_dentry);
++		}
++		goto out;
++	}
++
++	/* ok, now we can safely open the storage file */
++	mntget(stopd(inode->i_sb)->hidden_mnt2);
++	hidden_sto_file = dentry_open(hidden_sto_dentry,
++				      stopd(inode->i_sb)->hidden_mnt2,
++				      hidden_flags);
++
++	/* dentry_open dputs the dentry if it fails */
++	if (IS_ERR(hidden_sto_file)) {
++		err = PTR_ERR(hidden_sto_file);
++		/* close base file if open */
++		if(ftohf(file)) {
++			if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++				hidden_file->f_op->flush(hidden_file, NULL);
++#else
++				hidden_file->f_op->flush(hidden_file);
++#endif
++			dput(hidden_dentry);
++		}
++		goto out;
++	}
++	ftohf2(file) = hidden_sto_file; /* link storage file */
++
++ out:
++	if (err < 0 && ftopd(file)) {
++		kfree(ftopd(file));
++	}
++	return err;
++}
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_flush(file_t *file, fl_owner_t id)
++#else
++mini_fo_flush(file_t *file)
++#endif
++{
++	int err1 = 0;		/* assume ok (see open.c:close_fp) */
++	int err2 = 0;
++	file_t *hidden_file = NULL;
++
++	check_mini_fo_file(file);
++
++	/* mk: we don't do any state checking here, as its not worth the time.
++	 * Just flush the lower level files if they exist.
++	 */
++	if(ftopd(file) != NULL) {
++		if(ftohf(file) != NULL) {
++			hidden_file = ftohf(file);
++			if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++				err1 = hidden_file->f_op->flush(hidden_file, id);
++#else
++				err1 = hidden_file->f_op->flush(hidden_file);
++#endif
++		}
++		if(ftohf2(file) != NULL) {
++			hidden_file = ftohf2(file);
++			if (hidden_file->f_op && hidden_file->f_op->flush)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++				err2 = hidden_file->f_op->flush(hidden_file, id);
++#else
++				err2 = hidden_file->f_op->flush(hidden_file);
++#endif
++		}
++	}
++	return (err1 | err2);
++}
++
++
++STATIC int
++mini_fo_release(inode_t *inode, file_t *file)
++{
++	int err = 0;
++	file_t *hidden_file = NULL;
++
++	if (ftopd(file) != NULL) {
++		if(ftohf(file)) {
++			hidden_file = ftohf(file);
++			fput(hidden_file);
++		}
++		if(ftohf2(file)) {
++			hidden_file = ftohf2(file);
++			fput(hidden_file);
++		}
++		kfree(ftopd(file));
++	}
++	return err;
++}
++
++STATIC int
++mini_fo_fsync(file_t *file, dentry_t *dentry, int datasync)
++{
++	int err1 = 0;
++	int err2 = 0;
++	file_t *hidden_file = NULL;
++	dentry_t *hidden_dentry;
++
++	check_mini_fo_file(file);
++
++	if ((hidden_file = ftohf(file)) != NULL) {
++		hidden_dentry = dtohd(dentry);
++		if (hidden_file->f_op && hidden_file->f_op->fsync) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++			mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++			down(&hidden_dentry->d_inode->i_sem);
++#endif
++			err1 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++			mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++			up(&hidden_dentry->d_inode->i_sem);
++#endif
++		}
++	}
++
++	if ((hidden_file = ftohf2(file)) != NULL) {
++		hidden_dentry = dtohd2(dentry);
++		if (hidden_file->f_op && hidden_file->f_op->fsync) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++			mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++			down(&hidden_dentry->d_inode->i_sem);
++#endif
++			err2 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++			mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++			up(&hidden_dentry->d_inode->i_sem);
++#endif
++		}
++	}
++	else
++		goto err;
++
++err:
++	return (err1 || err2);
++}
++
++
++STATIC int
++mini_fo_fasync(int fd, file_t *file, int flag)
++{
++	int err1 = 0;
++	int err2 = 0;
++
++	file_t *hidden_file = NULL;
++
++	check_mini_fo_file(file);
++
++	if((hidden_file = ftohf(file)) != NULL) {
++		err1 = hidden_file->f_op->fasync(fd, hidden_file, flag);
++	}
++	if((hidden_file = ftohf2(file)) != NULL) {
++		err2 = hidden_file->f_op->fasync(fd, hidden_file, flag);
++	}
++
++	return (err1 || err2);
++}
++
++
++
++struct file_operations mini_fo_dir_fops =
++	{
++		read:	generic_read_dir,
++		write:	mini_fo_write,
++		readdir: mini_fo_readdir,
++		poll:	mini_fo_poll,
++		/* ioctl:	mini_fo_ioctl, */
++		mmap:	mini_fo_mmap,
++		open:	mini_fo_open,
++		flush:	mini_fo_flush,
++		release: mini_fo_release,
++		fsync:	mini_fo_fsync,
++		fasync:	mini_fo_fasync,
++		/* not needed lock:	mini_fo_lock, */
++		/* not needed: readv */
++		/* not needed: writev */
++		/* not implemented: sendpage */
++		/* not implemented: get_unmapped_area */
++	};
++
++struct file_operations mini_fo_main_fops =
++	{
++		llseek:	mini_fo_llseek,
++		read:	mini_fo_read,
++		write:	mini_fo_write,
++		readdir: mini_fo_readdir,
++		poll:	mini_fo_poll,
++		/* ioctl:	mini_fo_ioctl, */
++		mmap:	mini_fo_mmap,
++		open:	mini_fo_open,
++		flush:	mini_fo_flush,
++		release: mini_fo_release,
++		fsync:	mini_fo_fsync,
++		fasync:	mini_fo_fasync,
++		/* not needed: lock:	mini_fo_lock, */
++		/* not needed: readv */
++		/* not needed: writev */
++		/* not implemented: sendpage */
++		/* not implemented: get_unmapped_area */
++	};
+--- /dev/null
++++ b/fs/mini_fo/fist.h
+@@ -0,0 +1,254 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++
++/*
++ *  $Id$
++ */
++
++#ifndef __FIST_H_
++#define __FIST_H_
++
++/*
++ * KERNEL ONLY CODE:
++ */
++#ifdef __KERNEL__
++#include <linux/version.h>
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)
++#include <generated/autoconf.h>
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
++#include <linux/autoconf.h>
++#else
++#include <linux/config.h>
++#endif
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++#ifdef CONFIG_MODVERSIONS
++# define MODVERSIONS
++# include <linux/modversions.h>
++#endif /* CONFIG_MODVERSIONS */
++#endif /* KERNEL_VERSION < 2.6.0 */
++#include <linux/sched.h>
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/string.h>
++#include <linux/stat.h>
++#include <linux/errno.h>
++#include <linux/wait.h>
++#include <linux/limits.h>
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++#include <linux/locks.h>
++#else
++#include <linux/buffer_head.h>
++#include <linux/pagemap.h>
++#include <linux/namei.h>
++#include <linux/module.h>
++#include <linux/mount.h>
++#include <linux/page-flags.h>
++#include <linux/writeback.h>
++#include <linux/statfs.h>
++#endif
++#include <linux/smp.h>
++#include <linux/smp_lock.h>
++#include <linux/file.h>
++#include <linux/slab.h>
++#include <linux/vmalloc.h>
++#include <linux/poll.h>
++#include <linux/list.h>
++#include <linux/init.h>
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)
++#include <linux/xattr.h>
++#endif
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#include <linux/security.h>
++#endif
++
++#include <linux/swap.h>
++
++#include <asm/system.h>
++/* #include <asm/segment.h> */
++#include <asm/mman.h>
++#include <linux/seq_file.h>
++
++/*
++ * MACROS:
++ */
++
++/* those mapped to ATTR_* were copied from linux/fs.h */
++#define FA_MODE		ATTR_MODE
++#define FA_UID		ATTR_UID
++#define FA_GID		ATTR_GID
++#define FA_SIZE		ATTR_SIZE
++#define FA_ATIME	ATTR_ATIME
++#define FA_MTIME	ATTR_MTIME
++#define FA_CTIME	ATTR_CTIME
++#define FA_ATIME_SET	ATTR_ATIME_SET
++#define FA_MTIME_SET	ATTR_MTIME_SET
++#define FA_FORCE	ATTR_FORCE
++#define FA_ATTR_FLAGS	ATTR_ATTR_FLAG
++
++/* must be greater than all other ATTR_* flags! */
++#define FA_NLINK	2048
++#define FA_BLKSIZE	4096
++#define FA_BLOCKS	8192
++#define FA_TIMES	(FA_ATIME|FA_MTIME|FA_CTIME)
++#define FA_ALL		0
++
++/* macros to manage changes between kernels */
++#define INODE_DATA(i)	(&(i)->i_data)
++
++#define MIN(x,y) ((x < y) ? (x) : (y))
++#define MAX(x,y) ((x > y) ? (x) : (y))
++#define MAXPATHLEN PATH_MAX
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,5)
++# define lookup_one_len(a,b,c) lookup_one(a,b)
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,4,5) */
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8)
++# define generic_file_llseek default_llseek
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,4,8) */
++
++#ifndef SEEK_SET
++# define SEEK_SET 0
++#endif /* not SEEK_SET */
++
++#ifndef SEEK_CUR
++# define SEEK_CUR 1
++#endif /* not SEEK_CUR */
++
++#ifndef SEEK_END
++# define SEEK_END 2
++#endif /* not SEEK_END */
++
++#ifndef DEFAULT_POLLMASK
++# define DEFAULT_POLLMASK (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM)
++#endif /* not DEFAULT_POLLMASK */
++
++/* XXX: fix this so fistgen generates kfree() code directly */
++#define kfree_s(a,b) kfree(a)
++
++/*
++ * TYPEDEFS:
++ */
++typedef struct dentry dentry_t;
++typedef struct file file_t;
++typedef struct inode inode_t;
++typedef inode_t vnode_t;
++typedef struct page page_t;
++typedef struct qstr qstr_t;
++typedef struct super_block super_block_t;
++typedef super_block_t vfs_t;
++typedef struct vm_area_struct vm_area_t;
++
++
++/*
++ * EXTERNALS:
++ */
++
++#define FPPF(str,page) printk("PPF %s 0x%x/%d: Lck:%d Err:%d Ref:%d Upd:%d Other::%d:%d:%d:%d:\n", \
++		str, \
++		(int) page, \
++		(int) page->index, \
++		(PageLocked(page) ? 1 : 0), \
++		(PageError(page) ? 1 : 0), \
++		(PageReferenced(page) ? 1 : 0), \
++		(Page_Uptodate(page) ? 1 : 0), \
++		(PageDecrAfter(page) ? 1 : 0), \
++		(PageSlab(page) ? 1 : 0), \
++		(PageSwapCache(page) ? 1 : 0), \
++		(PageReserved(page) ? 1 : 0) \
++		)
++#define EZKDBG printk("EZK %s:%d:%s\n",__FILE__,__LINE__,__FUNCTION__)
++#if 0
++# define EZKDBG1 printk("EZK %s:%d\n",__FILE__,__LINE__)
++#else
++# define EZKDBG1
++#endif
++
++extern int fist_get_debug_value(void);
++extern int fist_set_debug_value(int val);
++#if 0 /* mini_fo doesn't need these */
++extern void fist_dprint_internal(int level, char *str,...);
++extern void fist_print_dentry(char *str, const dentry_t *dentry);
++extern void fist_print_inode(char *str, const inode_t *inode);
++extern void fist_print_file(char *str, const file_t *file);
++extern void fist_print_buffer_flags(char *str, struct buffer_head *buffer);
++extern void fist_print_page_flags(char *str, page_t *page);
++extern void fist_print_page_bytes(char *str, page_t *page);
++extern void fist_print_pte_flags(char *str, const page_t *page);
++extern void fist_checkinode(inode_t *inode, char *msg);
++extern void fist_print_sb(char *str, const super_block_t *sb);
++
++/* §$% by mk: special debug functions */
++extern void fist_mk_print_dentry(char *str, const dentry_t *dentry);
++extern void fist_mk_print_inode(char *str, const inode_t *inode);
++
++extern char *add_indent(void);
++extern char *del_indent(void);
++#endif/* mini_fo doesn't need these */
++
++
++#define STATIC
++#define ASSERT(EX)	\
++do {	\
++    if (!(EX)) {	\
++	printk(KERN_CRIT "ASSERTION FAILED: %s at %s:%d (%s)\n", #EX,	\
++	       __FILE__, __LINE__, __FUNCTION__);	\
++	(*((char *)0))=0;	\
++    }	\
++} while (0)
++/* same ASSERT, but tell me who was the caller of the function */
++#define ASSERT2(EX)	\
++do {	\
++    if (!(EX)) {	\
++	printk(KERN_CRIT "ASSERTION FAILED (caller): %s at %s:%d (%s)\n", #EX,	\
++	       file, line, func);	\
++	(*((char *)0))=0;	\
++    }	\
++} while (0)
++
++#if 0 /* mini_fo doesn't need these */
++#define dprintk(format, args...) printk(KERN_DEBUG format, ##args)
++#define fist_dprint(level, str, args...) fist_dprint_internal(level, KERN_DEBUG str, ## args)
++#define print_entry_location() fist_dprint(4, "%sIN:  %s %s:%d\n", add_indent(), __FUNCTION__, __FILE__, __LINE__)
++#define print_exit_location() fist_dprint(4, "%s OUT: %s %s:%d\n", del_indent(), __FUNCTION__, __FILE__, __LINE__)
++#define print_exit_status(status) fist_dprint(4, "%s OUT: %s %s:%d, STATUS: %d\n", del_indent(), __FUNCTION__, __FILE__, __LINE__, status)
++#define print_exit_pointer(status) \
++do { \
++  if (IS_ERR(status)) \
++    fist_dprint(4, "%s OUT: %s %s:%d, RESULT: %ld\n", del_indent(), __FUNCTION__, __FILE__, __LINE__, PTR_ERR(status)); \
++  else \
++    fist_dprint(4, "%s OUT: %s %s:%d, RESULT: 0x%x\n", del_indent(), __FUNCTION__, __FILE__, __LINE__, PTR_ERR(status)); \
++} while (0)
++#endif/* mini_fo doesn't need these */
++
++#endif /* __KERNEL__ */
++
++
++/*
++ * DEFINITIONS FOR USER AND KERNEL CODE:
++ * (Note: ioctl numbers 1--9 are reserved for fistgen, the rest
++ *  are auto-generated automatically based on the user's .fist file.)
++ */
++# define FIST_IOCTL_GET_DEBUG_VALUE	_IOR(0x15, 1, int)
++# define FIST_IOCTL_SET_DEBUG_VALUE	_IOW(0x15, 2, int)
++
++#endif /* not __FIST_H_ */
+--- /dev/null
++++ b/fs/mini_fo/inode.c
+@@ -0,0 +1,1564 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_create(inode_t *dir, dentry_t *dentry, int mode, struct nameidata *nd)
++#else
++mini_fo_create(inode_t *dir, dentry_t *dentry, int mode)
++#endif
++{
++	int err = 0;
++
++	check_mini_fo_dentry(dentry);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++	err = create_sto_reg_file(dentry, mode, nd);
++#else
++	err = create_sto_reg_file(dentry, mode);
++#endif
++	check_mini_fo_dentry(dentry);
++	return err;
++}
++
++
++STATIC dentry_t *
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_lookup(inode_t *dir, dentry_t *dentry, struct nameidata* nd)
++#else
++mini_fo_lookup(inode_t *dir, dentry_t *dentry)
++#endif
++{
++	int err = 0;
++	dentry_t *hidden_dir_dentry;
++	dentry_t *hidden_dentry = NULL;
++
++	dentry_t *hidden_sto_dir_dentry;
++	dentry_t *hidden_sto_dentry = NULL;
++
++	/* whiteout flag */
++	int del_flag = 0;
++	char *bpath = NULL;
++
++	const char *name;
++	unsigned int namelen;
++
++	/* Don't allow lookups of META-files */
++	namelen = strlen(META_FILENAME);
++	if(namelen == dentry->d_name.len) {
++		if(!strncmp(dentry->d_name.name, META_FILENAME, namelen)) {
++			err = -ENOENT;
++			goto out;
++		}
++	}
++
++	hidden_dir_dentry = dtohd(dentry->d_parent);
++	hidden_sto_dir_dentry = dtohd2(dentry->d_parent);
++
++	name = dentry->d_name.name;
++	namelen = dentry->d_name.len;
++
++	/* must initialize dentry operations */
++	dentry->d_op = &mini_fo_dops;
++
++	/* setup the del_flag */
++	del_flag = __meta_check_d_entry(dir, name, namelen);
++	bpath = __meta_check_r_entry(dir, name, namelen);
++
++	/* perform the lookups of base and storage files:
++	 *
++	 * This caused some serious trouble, as a lookup_one_len passing
++	 * a negative dentry oopses. Solution is to only do the lookup
++	 * if the dentry is positive, else we set it to NULL
++	 * More trouble, who said a *_dir_dentry can't be NULL?
++	 */
++	if(bpath) {
++		/* Cross-Interposing (C), yeah! */
++		hidden_dentry = bpath_walk(dir->i_sb, bpath);
++		if(!hidden_dentry || !hidden_dentry->d_inode) {
++			printk(KERN_CRIT "mini_fo_lookup: bpath_walk failed.\n");
++			err= -EINVAL;
++			goto out;
++		}
++
++		/* this can be set up safely without fear of spaghetti
++		 * interposing as it is only used for copying times */
++		hidden_dir_dentry = hidden_dentry->d_parent;
++		kfree(bpath);
++	}
++	else if(hidden_dir_dentry && hidden_dir_dentry->d_inode)
++		hidden_dentry =
++			lookup_one_len(name, hidden_dir_dentry, namelen);
++	else
++		hidden_dentry = NULL;
++
++	if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode)
++		hidden_sto_dentry =
++			lookup_one_len(name, hidden_sto_dir_dentry, namelen);
++	else
++		hidden_sto_dentry =  NULL;
++
++	/* catch error in lookup */
++	if (IS_ERR(hidden_dentry) || IS_ERR(hidden_sto_dentry)) {
++		/* mk: we need to call dput on the dentry, whose
++		 * lookup_one_len operation failed, in order to avoid
++		 * unmount trouble.
++		 */
++		if(IS_ERR(hidden_dentry)) {
++			printk(KERN_CRIT "mini_fo_lookup: ERR from base dentry, lookup failed.\n");
++			err = PTR_ERR(hidden_dentry);
++		} else {
++			dput(hidden_dentry);
++		}
++		if(IS_ERR(hidden_sto_dentry)) {
++			printk(KERN_CRIT "mini_fo_lookup: ERR from storage dentry, lookup failed.\n");
++			err = PTR_ERR(hidden_sto_dentry);
++		} else {
++			dput(hidden_sto_dentry);
++		}
++		goto out;
++	}
++
++	/* allocate dentry private data */
++	__dtopd(dentry) = (struct mini_fo_dentry_info *)
++		kmalloc(sizeof(struct mini_fo_dentry_info), GFP_KERNEL);
++
++	if (!dtopd(dentry)) {
++		err = -ENOMEM;
++		goto out_dput;
++	}
++
++	/* check for different states of the mini_fo file to be looked up. */
++
++	/* state 1, file has been modified */
++	if(hidden_dentry && hidden_sto_dentry &&
++	   hidden_dentry->d_inode && hidden_sto_dentry->d_inode && !del_flag) {
++
++		/* update parent directory's atime */
++		fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++
++		dtopd(dentry)->state = MODIFIED;
++		dtohd(dentry) = hidden_dentry;
++		dtohd2(dentry) = hidden_sto_dentry;
++
++		err = mini_fo_tri_interpose(hidden_dentry,
++					    hidden_sto_dentry,
++					    dentry, dir->i_sb, 1);
++		if (err) {
++			printk(KERN_CRIT "mini_fo_lookup: error interposing (state1).\n");
++			goto out_free;
++		}
++		goto out;
++	}
++	/* state 2, file is unmodified */
++	if(hidden_dentry && hidden_dentry->d_inode && !del_flag) {
++
++		fist_copy_attr_atime(dir, hidden_dir_dentry->d_inode);
++
++		dtopd(dentry)->state = UNMODIFIED;
++		dtohd(dentry) = hidden_dentry;
++		dtohd2(dentry) = hidden_sto_dentry; /* could be negative */
++
++		err = mini_fo_tri_interpose(hidden_dentry,
++					    hidden_sto_dentry,
++					    dentry, dir->i_sb, 1);
++		if (err) {
++			printk(KERN_CRIT "mini_fo_lookup: error interposing (state2).\n");
++			goto out_free;
++		}
++		goto out;
++	}
++	/* state 3, file has been newly created */
++	if(hidden_sto_dentry && hidden_sto_dentry->d_inode && !del_flag) {
++
++		fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++		dtopd(dentry)->state = CREATED;
++		dtohd(dentry) = hidden_dentry; /* could be negative */
++		dtohd2(dentry) = hidden_sto_dentry;
++
++		err = mini_fo_tri_interpose(hidden_dentry,
++					    hidden_sto_dentry,
++					    dentry, dir->i_sb, 1);
++		if (err) {
++			printk(KERN_CRIT "mini_fo_lookup: error interposing (state3).\n");
++			goto out_free;
++		}
++		goto out;
++	}
++
++	/* state 4, file has deleted and created again. */
++	if(hidden_dentry && hidden_sto_dentry &&
++	   hidden_dentry->d_inode &&
++	   hidden_sto_dentry->d_inode && del_flag) {
++
++		fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++		dtopd(dentry)->state = DEL_REWRITTEN;
++		dtohd(dentry) = NULL;
++		dtohd2(dentry) = hidden_sto_dentry;
++
++		err = mini_fo_tri_interpose(NULL,
++					    hidden_sto_dentry,
++					    dentry, dir->i_sb, 1);
++		if (err) {
++			printk(KERN_CRIT "mini_fo_lookup: error interposing (state4).\n");
++			goto out_free;
++		}
++		/* We will never need this dentry again, as the file has been
++		 * deleted from base */
++		dput(hidden_dentry);
++		goto out;
++	}
++	/* state 5, file has been deleted in base */
++	if(hidden_dentry && hidden_sto_dentry &&
++	   hidden_dentry->d_inode &&
++	   !hidden_sto_dentry->d_inode && del_flag) {
++
++		/* check which parents atime we need for updating */
++		if(hidden_sto_dir_dentry->d_inode)
++			fist_copy_attr_atime(dir,
++					     hidden_sto_dir_dentry->d_inode);
++		else
++			fist_copy_attr_atime(dir,
++					     hidden_dir_dentry->d_inode);
++
++		dtopd(dentry)->state = DELETED;
++		dtohd(dentry) = NULL;
++		dtohd2(dentry) = hidden_sto_dentry;
++
++		/* add negative dentry to dcache to speed up lookups */
++		d_add(dentry, NULL);
++		dput(hidden_dentry);
++		goto out;
++	}
++	/* state 6, file does not exist */
++	if(((hidden_dentry && !hidden_dentry->d_inode) ||
++	    (hidden_sto_dentry && !hidden_sto_dentry->d_inode)) && !del_flag)
++		{
++			/* check which parents atime we need for updating */
++			if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode)
++				fist_copy_attr_atime(dir, hidden_sto_dir_dentry->d_inode);
++			else
++				fist_copy_attr_atime(dir, hidden_dir_dentry->d_inode);
++
++			dtopd(dentry)->state = NON_EXISTANT;
++			dtohd(dentry) = hidden_dentry;
++			dtohd2(dentry) = hidden_sto_dentry;
++			d_add(dentry, NULL);
++			goto out;
++		}
++
++	/* if we get to here, were in an invalid state. bad. */
++	printk(KERN_CRIT "mini_fo_lookup: ERROR, meta data corruption detected.\n");
++
++	/* end state checking */
++ out_free:
++	d_drop(dentry);		/* so that our bad dentry will get destroyed */
++	kfree(dtopd(dentry));
++	__dtopd(dentry) = NULL;	/* be safe */
++
++ out_dput:
++	if(hidden_dentry)
++		dput(hidden_dentry);
++	if(hidden_sto_dentry)
++		dput(hidden_sto_dentry); /* drops usage count and marks for release */
++
++ out:
++	/* initalize wol if file exists and is directory */
++	if(dentry->d_inode) {
++		if(S_ISDIR(dentry->d_inode->i_mode)) {
++			itopd(dentry->d_inode)->deleted_list_size = -1;
++			itopd(dentry->d_inode)->renamed_list_size = -1;
++			meta_build_lists(dentry);
++		}
++	}
++	return ERR_PTR(err);
++}
++
++
++STATIC int
++mini_fo_link(dentry_t *old_dentry, inode_t *dir, dentry_t *new_dentry)
++{
++	int err;
++	dentry_t *hidden_old_dentry;
++	dentry_t *hidden_new_dentry;
++	dentry_t *hidden_dir_dentry;
++
++
++	check_mini_fo_dentry(old_dentry);
++	check_mini_fo_dentry(new_dentry);
++	check_mini_fo_inode(dir);
++
++	/* no links to directorys and existing targets target allowed */
++	if(S_ISDIR(old_dentry->d_inode->i_mode) ||
++	   is_mini_fo_existant(new_dentry)) {
++		err = -EPERM;
++		goto out;
++	}
++
++	/* bring it directly from unmod to del_rew */
++	if(dtost(old_dentry) == UNMODIFIED) {
++		err = nondir_unmod_to_mod(old_dentry, 1);
++		if(err) {
++			err = -EINVAL;
++			goto out;
++		}
++		err = meta_add_d_entry(old_dentry->d_parent,
++				       old_dentry->d_name.name,
++				       old_dentry->d_name.len);
++		if(err) {
++			err = -EINVAL;
++			goto out;
++		}
++		dput(dtohd(old_dentry));
++		dtohd(old_dentry) = NULL;
++		dtost(old_dentry) = DEL_REWRITTEN;
++	}
++
++	err = get_neg_sto_dentry(new_dentry);
++	if(err) {
++		err = -EINVAL;
++		goto out;
++	}
++
++	hidden_old_dentry = dtohd2(old_dentry);
++	hidden_new_dentry = dtohd2(new_dentry);
++
++	dget(hidden_old_dentry);
++	dget(hidden_new_dentry);
++
++	/* was: hidden_dir_dentry = lock_parent(hidden_new_dentry); */
++	hidden_dir_dentry = dget(hidden_new_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_dir_dentry->d_inode->i_mutex);
++#else
++	down(&hidden_dir_dentry->d_inode->i_sem);
++#endif
++
++	err = vfs_link(hidden_old_dentry,
++		       hidden_dir_dentry->d_inode,
++		       hidden_new_dentry);
++	if (err || !hidden_new_dentry->d_inode)
++		goto out_lock;
++
++	dtost(new_dentry) = CREATED;
++ 	err = mini_fo_tri_interpose(NULL, hidden_new_dentry, new_dentry, dir->i_sb, 0);
++	if (err)
++		goto out_lock;
++
++	fist_copy_attr_timesizes(dir, hidden_new_dentry->d_inode);
++	/* propagate number of hard-links */
++	old_dentry->d_inode->i_nlink = itohi2(old_dentry->d_inode)->i_nlink;
++
++ out_lock:
++	/* was: unlock_dir(hidden_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_dir_dentry->d_inode->i_sem);
++#endif
++	dput(hidden_dir_dentry);
++
++	dput(hidden_new_dentry);
++	dput(hidden_old_dentry);
++	if (!new_dentry->d_inode)
++		d_drop(new_dentry);
++
++ out:
++	return err;
++}
++
++
++STATIC int
++mini_fo_unlink(inode_t *dir, dentry_t *dentry)
++{
++	int err = 0;
++
++	dget(dentry);
++	if(dtopd(dentry)->state == MODIFIED) {
++		err = nondir_mod_to_del(dentry);
++		goto out;
++	}
++	else if(dtopd(dentry)->state == UNMODIFIED) {
++		err = nondir_unmod_to_del(dentry);
++		goto out;
++	}
++	else if(dtopd(dentry)->state == CREATED) {
++		err = nondir_creat_to_del(dentry);
++		goto out;
++	}
++	else if(dtopd(dentry)->state == DEL_REWRITTEN) {
++		err = nondir_del_rew_to_del(dentry);
++		goto out;
++	}
++
++	printk(KERN_CRIT "mini_fo_unlink: ERROR, invalid state detected.\n");
++
++ out:
++	fist_copy_attr_times(dir, itohi2(dentry->d_parent->d_inode));
++
++	if(!err) {
++		/* is this causing my pain? d_delete(dentry); */
++		d_drop(dentry);
++	}
++
++	dput(dentry);
++	return err;
++}
++
++
++STATIC int
++mini_fo_symlink(inode_t *dir, dentry_t *dentry, const char *symname)
++{
++	int err=0;
++	dentry_t *hidden_sto_dentry;
++	dentry_t *hidden_sto_dir_dentry;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++        umode_t mode;
++#endif
++
++	/* Fail if the symlink file exists */
++	if(!(dtost(dentry) == DELETED ||
++	     dtost(dentry) == NON_EXISTANT)) {
++		err = -EEXIST;
++		goto out;
++	}
++
++	err = get_neg_sto_dentry(dentry);
++	if(err) {
++		err = -EINVAL;
++		goto out;
++	}
++	hidden_sto_dentry = dtohd2(dentry);
++
++	dget(hidden_sto_dentry);
++	/* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++	mode = S_IALLUGO;
++	err = vfs_symlink(hidden_sto_dir_dentry->d_inode,
++			  hidden_sto_dentry, symname, mode);
++#else
++	err = vfs_symlink(hidden_sto_dir_dentry->d_inode,
++			  hidden_sto_dentry,
++			  symname);
++#endif
++	if (err || !hidden_sto_dentry->d_inode)
++                goto out_lock;
++
++        if(dtost(dentry) == DELETED) {
++                dtost(dentry) = DEL_REWRITTEN;
++                err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        } else if(dtost(dentry) == NON_EXISTANT) {
++                dtost(dentry) = CREATED;
++                err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        }
++	fist_copy_attr_timesizes(dir, hidden_sto_dir_dentry->d_inode);
++
++ out_lock:
++        /* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++	dput(hidden_sto_dir_dentry);
++
++        dput(hidden_sto_dentry);
++        if (!dentry->d_inode)
++                d_drop(dentry);
++ out:
++        return err;
++}
++
++STATIC int
++mini_fo_mkdir(inode_t *dir, dentry_t *dentry, int mode)
++{
++	int err;
++
++	err = create_sto_dir(dentry, mode);
++
++	check_mini_fo_dentry(dentry);
++
++	return err;
++}
++
++
++STATIC int
++mini_fo_rmdir(inode_t *dir, dentry_t *dentry)
++{
++	int err = 0;
++
++	dentry_t *hidden_sto_dentry;
++	dentry_t *hidden_sto_dir_dentry;
++	dentry_t *meta_dentry;
++	inode_t *hidden_sto_dir = NULL;
++
++	check_mini_fo_dentry(dentry);
++	check_mini_fo_inode(dir);
++
++	dget(dentry);
++	if(dtopd(dentry)->state == MODIFIED) {
++		/* XXX: disabled, because it does not bother to check files on
++		 * the original filesystem - just a hack, but better than simply
++		 * removing it without testing */
++		err = -EINVAL;
++		goto out;
++
++		hidden_sto_dir = itohi2(dir);
++		hidden_sto_dentry = dtohd2(dentry);
++
++		/* was:hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++		hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++		down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++		/* Delete an old WOL file contained in the storage dir */
++		meta_dentry = lookup_one_len(META_FILENAME,
++					     hidden_sto_dentry,
++					     strlen(META_FILENAME));
++		if(meta_dentry->d_inode) {
++			err = vfs_unlink(hidden_sto_dentry->d_inode, meta_dentry);
++			dput(meta_dentry);
++			if(!err)
++				d_delete(meta_dentry);
++		}
++
++		err = vfs_rmdir(hidden_sto_dir, hidden_sto_dentry);
++		dput(hidden_sto_dentry);
++		if(!err)
++			d_delete(hidden_sto_dentry);
++
++		/* propagate number of hard-links */
++		dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++
++		dput(dtohd(dentry));
++
++		dtohd(dentry) = NULL;
++		dtopd(dentry)->state = DELETED;
++
++		/* carefull with R files */
++		if( __meta_is_r_entry(dir,
++				      dentry->d_name.name,
++				      dentry->d_name.len) == 1) {
++			err = meta_remove_r_entry(dentry->d_parent,
++						  dentry->d_name.name,
++						  dentry->d_name.len);
++			if(err) {
++				printk(KERN_CRIT "mini_fo: rmdir: meta_remove_r_entry failed.\n");
++				goto out;
++			}
++		}
++		else {
++			/* ok, add deleted file to META */
++			meta_add_d_entry(dentry->d_parent,
++					 dentry->d_name.name,
++					 dentry->d_name.len);
++		}
++		/* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++		dput(hidden_sto_dir_dentry);
++		goto out;
++	}
++	else if(dtopd(dentry)->state == UNMODIFIED) {
++		/* XXX: simply adding it to the delete list here is fscking dangerous!
++		 * as a temporary hack, i will disable rmdir on unmodified directories
++		 * for now.
++		 */
++		err = -EINVAL;
++		goto out;
++
++		err = get_neg_sto_dentry(dentry);
++		if(err) {
++			err = -EINVAL;
++			goto out;
++		}
++
++		/* dput base dentry, this will relase the inode and free the
++		 * dentry, as we will never need it again. */
++		dput(dtohd(dentry));
++		dtohd(dentry) = NULL;
++		dtopd(dentry)->state = DELETED;
++
++		/* add deleted file to META-file */
++		meta_add_d_entry(dentry->d_parent,
++				 dentry->d_name.name,
++				 dentry->d_name.len);
++		goto out;
++	}
++	else if(dtopd(dentry)->state == CREATED) {
++		hidden_sto_dir = itohi2(dir);
++		hidden_sto_dentry = dtohd2(dentry);
++
++		/* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
++		hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++		down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++		/* Delete an old WOL file contained in the storage dir */
++		meta_dentry = lookup_one_len(META_FILENAME,
++					     hidden_sto_dentry,
++					     strlen(META_FILENAME));
++		if(meta_dentry->d_inode) {
++			/* is this necessary? dget(meta_dentry); */
++			err = vfs_unlink(hidden_sto_dentry->d_inode,
++					 meta_dentry);
++			dput(meta_dentry);
++			if(!err)
++				d_delete(meta_dentry);
++		}
++
++		err = vfs_rmdir(hidden_sto_dir, hidden_sto_dentry);
++		dput(hidden_sto_dentry);
++		if(!err)
++			d_delete(hidden_sto_dentry);
++
++		/* propagate number of hard-links */
++		dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++		dtopd(dentry)->state = NON_EXISTANT;
++
++		/* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++		dput(hidden_sto_dir_dentry);
++
++		goto out;
++	}
++	else if(dtopd(dentry)->state == DEL_REWRITTEN) {
++		hidden_sto_dir = itohi2(dir);
++		hidden_sto_dentry = dtohd2(dentry);
++
++		/* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
++		hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++		down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++		/* Delete an old WOL file contained in the storage dir */
++		meta_dentry = lookup_one_len(META_FILENAME,
++					     hidden_sto_dentry,
++					     strlen(META_FILENAME));
++		if(meta_dentry->d_inode) {
++			/* is this necessary? dget(meta_dentry); */
++			err = vfs_unlink(hidden_sto_dentry->d_inode,
++					 meta_dentry);
++			dput(meta_dentry);
++			if(!err)
++				d_delete(meta_dentry);
++		}
++
++		err = vfs_rmdir(hidden_sto_dir, hidden_sto_dentry);
++		dput(hidden_sto_dentry);
++		if(!err)
++			d_delete(hidden_sto_dentry);
++
++		/* propagate number of hard-links */
++		dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++		dtopd(dentry)->state = DELETED;
++		/* was: unlock_dir(hidden_sto_dir_dentry); */
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++		dput(hidden_sto_dir_dentry);
++		goto out;
++	}
++
++	printk(KERN_CRIT "mini_fo_rmdir: ERROR, invalid state detected.\n");
++
++ out:
++	if(!err) {
++		d_drop(dentry);
++	}
++
++	fist_copy_attr_times(dir, itohi2(dentry->d_parent->d_inode));
++	dput(dentry);
++
++	return err;
++}
++
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_mknod(inode_t *dir, dentry_t *dentry, int mode, dev_t dev)
++#else
++mini_fo_mknod(inode_t *dir, dentry_t *dentry, int mode, int dev)
++#endif
++{
++	int err = 0;
++
++	check_mini_fo_dentry(dentry);
++
++	err = create_sto_nod(dentry, mode, dev);
++	if(err) {
++		printk(KERN_CRIT "mini_fo_mknod: creating sto nod failed.\n");
++		err = -EINVAL;
++	}
++
++	check_mini_fo_dentry(dentry);
++	return err;
++}
++
++
++STATIC int
++mini_fo_rename(inode_t *old_dir, dentry_t *old_dentry,
++	       inode_t *new_dir, dentry_t *new_dentry)
++{
++	/* dispatch */
++	if(S_ISDIR(old_dentry->d_inode->i_mode))
++		return rename_directory(old_dir, old_dentry, new_dir, new_dentry);
++	return rename_nondir(old_dir, old_dentry, new_dir, new_dentry);
++
++}
++
++int rename_directory(inode_t *old_dir, dentry_t *old_dentry,
++		     inode_t *new_dir, dentry_t *new_dentry)
++{
++	int err, bpath_len;
++	char *bpath;
++
++	dentry_t *hidden_old_dentry;
++	dentry_t *hidden_new_dentry;
++	dentry_t *hidden_old_dir_dentry;
++	dentry_t *hidden_new_dir_dentry;
++
++	err = 0;
++	bpath = NULL;
++	bpath_len = 0;
++
++	/* this is a test, chuck out if it works */
++	if(!(dtopd(new_dentry)->state == DELETED ||
++	     dtopd(new_dentry)->state == NON_EXISTANT)) {
++		printk(KERN_CRIT "mini_fo: rename_directory: \
++                                  uh, ah, new_dentry not negative.\n");
++		/* return -1; */
++	}
++
++	/* state = UNMODIFIED */
++	if(dtopd(old_dentry)->state == UNMODIFIED) {
++		err = dir_unmod_to_mod(old_dentry);
++		if (err)
++			goto out;
++	}
++
++	/* state = MODIFIED */
++	if(dtopd(old_dentry)->state == MODIFIED) {
++		bpath = meta_check_r_entry(old_dentry->d_parent,
++					   old_dentry->d_name.name,
++					   old_dentry->d_name.len);
++		if(bpath) {
++			err = meta_remove_r_entry(old_dentry->d_parent,
++						  old_dentry->d_name.name,
++						  old_dentry->d_name.len);
++			if(err) {
++				printk(KERN_CRIT "mini_fo: rename_directory:\
++                                                   meta_remove_r_entry \
++                                                  failed.\n");
++				goto out;
++			}
++			err = meta_add_r_entry(new_dentry->d_parent,
++					       bpath,
++					       strlen(bpath),
++					       new_dentry->d_name.name,
++					       new_dentry->d_name.len);
++			kfree(bpath);
++		}
++		else {/* wol it */
++			err = meta_add_d_entry(old_dentry->d_parent,
++					       old_dentry->d_name.name,
++					       old_dentry->d_name.len);
++			if (err)
++				goto out;
++			/* put it on rename list */
++			err = get_mini_fo_bpath(old_dentry,
++						&bpath,
++						&bpath_len);
++			if (err)
++				goto out;
++			err = meta_add_r_entry(new_dentry->d_parent,
++					       bpath, bpath_len,
++					       new_dentry->d_name.name,
++					       new_dentry->d_name.len);
++			if (err)
++				goto out;
++		}
++		/* no state change, MODIFIED stays MODIFIED */
++	}
++	/* state = CREATED */
++	if(dtopd(old_dentry)->state == CREATED ||
++	   dtopd(old_dentry)->state == DEL_REWRITTEN) {
++		if(dtohd(old_dentry))
++			dput(dtohd(old_dentry));
++
++		if(dtopd(new_dentry)->state == DELETED) {
++			dtopd(old_dentry)->state = DEL_REWRITTEN;
++			dtohd(old_dentry) = NULL;
++		}
++		else if(dtopd(new_dentry)->state == NON_EXISTANT) {
++			dtopd(old_dentry)->state = CREATED;
++			/* steal new dentry's neg. base dentry */
++			dtohd(old_dentry) = dtohd(new_dentry);
++			dtohd(new_dentry) = NULL;
++		}
++	}
++	if(dtopd(new_dentry)->state == UNMODIFIED ||
++	   dtopd(new_dentry)->state == NON_EXISTANT) {
++		err = get_neg_sto_dentry(new_dentry);
++		if(err)
++			goto out;
++	}
++
++	/* now move sto file */
++	hidden_old_dentry = dtohd2(old_dentry);
++	hidden_new_dentry = dtohd2(new_dentry);
++
++	dget(hidden_old_dentry);
++	dget(hidden_new_dentry);
++
++	hidden_old_dir_dentry = dget(hidden_old_dentry->d_parent);
++	hidden_new_dir_dentry = dget(hidden_new_dentry->d_parent);
++	double_lock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++
++	err = vfs_rename(hidden_old_dir_dentry->d_inode, hidden_old_dentry,
++			 hidden_new_dir_dentry->d_inode, hidden_new_dentry);
++	if(err)
++		goto out_lock;
++
++	fist_copy_attr_all(new_dir, hidden_new_dir_dentry->d_inode);
++	if (new_dir != old_dir)
++		fist_copy_attr_all(old_dir,
++				   hidden_old_dir_dentry->d_inode);
++
++ out_lock:
++	/* double_unlock will dput the new/old parent dentries
++	 * whose refcnts were incremented via get_parent above. */
++	double_unlock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++	dput(hidden_new_dentry);
++	dput(hidden_old_dentry);
++
++ out:
++	return err;
++}
++
++int rename_nondir(inode_t *old_dir, dentry_t *old_dentry,
++		  inode_t *new_dir, dentry_t *new_dentry)
++{
++	int err=0;
++
++	check_mini_fo_dentry(old_dentry);
++	check_mini_fo_dentry(new_dentry);
++	check_mini_fo_inode(old_dir);
++	check_mini_fo_inode(new_dir);
++
++	/* state: UNMODIFIED */
++	if(dtost(old_dentry) == UNMODIFIED) {
++		err = nondir_unmod_to_mod(old_dentry, 1);
++		if(err) {
++			err = -EINVAL;
++			goto out;
++		}
++	}
++
++	/* the easy states */
++	if(exists_in_storage(old_dentry)) {
++
++		dentry_t *hidden_old_dentry;
++		dentry_t *hidden_new_dentry;
++		dentry_t *hidden_old_dir_dentry;
++		dentry_t *hidden_new_dir_dentry;
++
++		/* if old file is MODIFIED, add it to the deleted_list */
++		if(dtopd(old_dentry)->state == MODIFIED) {
++			meta_add_d_entry(old_dentry->d_parent,
++					 old_dentry->d_name.name,
++					 old_dentry->d_name.len);
++
++			dput(dtohd(old_dentry));
++		}
++		/* if old file is CREATED, we only release the base dentry */
++		if(dtopd(old_dentry)->state == CREATED) {
++			if(dtohd(old_dentry))
++				dput(dtohd(old_dentry));
++		}
++
++		/* now setup the new states (depends on new_dentry state) */
++		/* new dentry state =  MODIFIED */
++		if(dtopd(new_dentry)->state == MODIFIED) {
++			meta_add_d_entry(new_dentry->d_parent,
++					 new_dentry->d_name.name,
++					 new_dentry->d_name.len);
++
++			/* new dentry will be d_put'ed later by the vfs
++			 * so don't do it here
++			 * dput(dtohd(new_dentry));
++			 */
++			dtohd(old_dentry) = NULL;
++			dtopd(old_dentry)->state = DEL_REWRITTEN;
++		}
++		/* new dentry state =  UNMODIFIED */
++		else if(dtopd(new_dentry)->state == UNMODIFIED) {
++			if(get_neg_sto_dentry(new_dentry))
++				return -EINVAL;
++
++			meta_add_d_entry(new_dentry->d_parent,
++					 new_dentry->d_name.name,
++					 new_dentry->d_name.len);
++
++			/* is this right??? */
++			/*dput(dtohd(new_dentry));*/
++			dtohd(old_dentry) = NULL;
++			dtopd(old_dentry)->state = DEL_REWRITTEN;
++		}
++		/* new dentry state =  CREATED */
++		else if(dtopd(new_dentry)->state == CREATED) {
++			/* we keep the neg. base dentry (if exists) */
++			dtohd(old_dentry) = dtohd(new_dentry);
++			/* ...and set it to Null, or we'll get
++			 * dcache.c:345 if it gets dput twice... */
++			dtohd(new_dentry) = NULL;
++			dtopd(old_dentry)->state = CREATED;
++		}
++		/* new dentry state =  NON_EXISTANT */
++		else if(dtopd(new_dentry)->state == NON_EXISTANT) {
++			if(get_neg_sto_dentry(new_dentry))
++				return -EINVAL;
++
++			/* we keep the neg. base dentry (if exists) */
++			dtohd(old_dentry) = dtohd(new_dentry);
++			/* ...and set it to Null, or we'll get
++			 * Dr. dcache.c:345 if it gets dput twice... */
++			dtohd(new_dentry) = NULL;
++			dtopd(old_dentry)->state = CREATED;
++		}
++		/* new dentry state =  DEL_REWRITTEN or DELETED */
++		else if(dtopd(new_dentry)->state == DEL_REWRITTEN ||
++			dtopd(new_dentry)->state == DELETED) {
++			dtohd(old_dentry) = NULL;
++			dtopd(old_dentry)->state = DEL_REWRITTEN;
++		}
++		else { /* not possible, uhh, ahh */
++			printk(KERN_CRIT
++			       "mini_fo: rename_reg_file: invalid state detected [1].\n");
++			return -1;
++		}
++
++		/* now we definitely have a sto file */
++		hidden_old_dentry = dtohd2(old_dentry);
++		hidden_new_dentry = dtohd2(new_dentry);
++
++		dget(hidden_old_dentry);
++		dget(hidden_new_dentry);
++
++		hidden_old_dir_dentry = dget(hidden_old_dentry->d_parent);
++		hidden_new_dir_dentry = dget(hidden_new_dentry->d_parent);
++		double_lock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++
++		err = vfs_rename(hidden_old_dir_dentry->d_inode,
++				 hidden_old_dentry,
++				 hidden_new_dir_dentry->d_inode,
++				 hidden_new_dentry);
++		if(err)
++			goto out_lock;
++
++		fist_copy_attr_all(new_dir, hidden_new_dir_dentry->d_inode);
++		if (new_dir != old_dir)
++			fist_copy_attr_all(old_dir, hidden_old_dir_dentry->d_inode);
++
++	out_lock:
++		/* double_unlock will dput the new/old parent dentries
++		 * whose refcnts were incremented via get_parent above.
++		 */
++		double_unlock(hidden_old_dir_dentry, hidden_new_dir_dentry);
++		dput(hidden_new_dentry);
++		dput(hidden_old_dentry);
++	out:
++		return err;
++	}
++	else { /* invalid state */
++		printk(KERN_CRIT "mini_fo: rename_reg_file: ERROR: invalid state detected [2].\n");
++		return -1;
++	}
++}
++
++
++STATIC int
++mini_fo_readlink(dentry_t *dentry, char *buf, int bufsiz)
++{
++	int err=0;
++	dentry_t *hidden_dentry = NULL;
++
++	if(dtohd2(dentry) && dtohd2(dentry)->d_inode) {
++		hidden_dentry = dtohd2(dentry);
++	} else if(dtohd(dentry) && dtohd(dentry)->d_inode) {
++		hidden_dentry = dtohd(dentry);
++	} else {
++		goto out;
++	}
++
++	if (!hidden_dentry->d_inode->i_op ||
++	    !hidden_dentry->d_inode->i_op->readlink) {
++		err = -EINVAL;		goto out;
++	}
++
++	err = hidden_dentry->d_inode->i_op->readlink(hidden_dentry,
++						     buf,
++						     bufsiz);
++	if (err > 0)
++		fist_copy_attr_atime(dentry->d_inode, hidden_dentry->d_inode);
++
++ out:
++	return err;
++}
++
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
++static int mini_fo_follow_link(dentry_t *dentry, struct nameidata *nd)
++#else
++static void* mini_fo_follow_link(dentry_t *dentry, struct nameidata *nd)
++#endif
++{
++	char *buf;
++	int len = PAGE_SIZE, err;
++	mm_segment_t old_fs;
++
++	/* in 2.6 this is freed by mini_fo_put_link called by __do_follow_link */
++	buf = kmalloc(len, GFP_KERNEL);
++	if (!buf) {
++		err = -ENOMEM;
++		goto out;
++	}
++
++	/* read the symlink, and then we will follow it */
++	old_fs = get_fs();
++	set_fs(KERNEL_DS);
++	err = dentry->d_inode->i_op->readlink(dentry, buf, len);
++	set_fs(old_fs);
++	if (err < 0) {
++		kfree(buf);
++		buf = NULL;
++		goto out;
++	}
++	buf[err] = 0;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++        nd_set_link(nd, buf);
++        err = 0;
++#else
++	err = vfs_follow_link(nd, buf);
++#endif
++
++ out:
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++	kfree(buf);
++#endif
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
++        return err;
++#else
++        return ERR_PTR(err);
++#endif
++}
++
++STATIC
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
++void mini_fo_put_link(struct dentry *dentry, struct nameidata *nd)
++#else
++void mini_fo_put_link(struct dentry *dentry, struct nameidata *nd, void *cookie)
++#endif
++{
++        char *link;
++        link = nd_get_link(nd);
++        kfree(link);
++}
++#endif
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_permission(inode_t *inode, int mask, struct nameidata *nd)
++#else
++mini_fo_permission(inode_t *inode, int mask)
++#endif
++{
++	inode_t *hidden_inode;
++	int mode;
++	int err;
++
++	if(itohi2(inode)) {
++		hidden_inode = itohi2(inode);
++	} else {
++		hidden_inode = itohi(inode);
++	}
++	mode = inode->i_mode;
++
++	/* not really needed, as permission handles everything:
++	 *	err = vfs_permission(inode, mask);
++	 *	if (err)
++	 *		goto out;
++	 */
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++	err = permission(hidden_inode, mask, nd);
++#else
++	err = permission(hidden_inode, mask);
++#endif
++
++	/*  out: */
++	return err;
++}
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++STATIC int
++mini_fo_inode_revalidate(dentry_t *dentry)
++{
++	int err = 0;
++	dentry_t *hidden_dentry;
++	inode_t *hidden_inode;
++
++	ASSERT(dentry->d_inode);
++	ASSERT(itopd(dentry->d_inode));
++
++	if(itohi2(dentry->d_inode)) {
++                hidden_dentry = dtohd2(dentry);
++		hidden_inode = hidden_dentry->d_inode;
++	} else if(itohi(dentry->d_inode)) {
++                hidden_dentry = dtohd(dentry);
++		hidden_inode = hidden_dentry->d_inode;
++	} else {
++                printk(KERN_CRIT "mini_fo_inode_revalidate: ERROR, invalid state detected.\n");
++                err = -ENOENT;
++                goto out;
++        }
++	if (hidden_inode && hidden_inode->i_op && hidden_inode->i_op->revalidate){
++		err = hidden_inode->i_op->revalidate(hidden_dentry);
++		if (err)
++			goto out;
++	}
++	fist_copy_attr_all(dentry->d_inode, hidden_inode);
++ out:
++	return err;
++}
++#endif
++
++STATIC int
++mini_fo_setattr(dentry_t *dentry, struct iattr *ia)
++{
++	int err = 0;
++
++	check_mini_fo_dentry(dentry);
++
++	if(!is_mini_fo_existant(dentry)) {
++		printk(KERN_CRIT "mini_fo_setattr: ERROR, invalid state detected [1].\n");
++		goto out;
++	}
++
++	if(dtost(dentry) == UNMODIFIED) {
++		if(!IS_COPY_FLAG(ia->ia_valid))
++			goto out; /* we ignore these changes to base */
++
++		if(S_ISDIR(dentry->d_inode->i_mode)) {
++			err = dir_unmod_to_mod(dentry);
++		} else {
++			/* we copy contents if file is not beeing truncated */
++			if(S_ISREG(dentry->d_inode->i_mode) &&
++			   !(ia->ia_size == 0 && (ia->ia_valid & ATTR_SIZE))) {
++				err = nondir_unmod_to_mod(dentry, 1);
++			} else
++				err = nondir_unmod_to_mod(dentry, 0);
++		}
++		if(err) {
++			err = -EINVAL;
++			printk(KERN_CRIT "mini_fo_setattr: ERROR changing states.\n");
++			goto out;
++		}
++	}
++	if(!exists_in_storage(dentry)) {
++		printk(KERN_CRIT "mini_fo_setattr: ERROR, invalid state detected [2].\n");
++		err = -EINVAL;
++		goto out;
++	}
++	ASSERT(dentry->d_inode);
++	ASSERT(dtohd2(dentry));
++	ASSERT(itopd(dentry->d_inode));
++	ASSERT(itohi2(dentry->d_inode));
++
++	err = notify_change(dtohd2(dentry), ia);
++	fist_copy_attr_all(dentry->d_inode, itohi2(dentry->d_inode));
++ out:
++	return err;
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++STATIC int
++mini_fo_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
++{
++	int err = 0;
++        dentry_t *hidden_dentry;
++
++	ASSERT(dentry->d_inode);
++	ASSERT(itopd(dentry->d_inode));
++
++	if(itohi2(dentry->d_inode)) {
++                hidden_dentry = dtohd2(dentry);
++	} else if(itohi(dentry->d_inode)) {
++                hidden_dentry = dtohd(dentry);
++	} else {
++                printk(KERN_CRIT "mini_fo_getattr: ERROR, invalid state detected.\n");
++                err = -ENOENT;
++                goto out;
++        }
++	fist_copy_attr_all(dentry->d_inode, hidden_dentry->d_inode);
++
++	ASSERT(hidden_dentry);
++	ASSERT(hidden_dentry->d_inode);
++	ASSERT(hidden_dentry->d_inode->i_op);
++
++	generic_fillattr(dentry->d_inode, stat);
++	if (!stat->blksize) {
++		struct super_block *s = hidden_dentry->d_inode->i_sb;
++		unsigned blocks;
++		blocks = (stat->size+s->s_blocksize-1) >> s->s_blocksize_bits;
++		stat->blocks = (s->s_blocksize / 512) * blocks;
++		stat->blksize = s->s_blocksize;
++	}
++ out:
++        return err;
++}
++#endif
++
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++#if 0 /* no xattr_alloc() and xattr_free() */
++/* This is lifted from fs/xattr.c */
++static void *
++xattr_alloc(size_t size, size_t limit)
++{
++	void *ptr;
++
++	if (size > limit)
++		return ERR_PTR(-E2BIG);
++
++	if (!size)	/* size request, no buffer is needed */
++		return NULL;
++	else if (size <= PAGE_SIZE)
++		ptr = kmalloc((unsigned long) size, GFP_KERNEL);
++	else
++		ptr = vmalloc((unsigned long) size);
++	if (!ptr)
++		return ERR_PTR(-ENOMEM);
++	return ptr;
++}
++
++static void
++xattr_free(void *ptr, size_t size)
++{
++	if (!size)	/* size request, no buffer was needed */
++		return;
++	else if (size <= PAGE_SIZE)
++		kfree(ptr);
++	else
++		vfree(ptr);
++}
++#endif /* no xattr_alloc() and xattr_free() */
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++mini_fo_getxattr(struct dentry *dentry, const char *name, void *value, size_t size) {
++	struct dentry *hidden_dentry = NULL;
++	int err = -EOPNOTSUPP;
++	/* Define these anyway so we don't need as much ifdef'ed code. */
++	char *encoded_name = NULL;
++	char *encoded_value = NULL;
++
++	check_mini_fo_dentry(dentry);
++
++	if(exists_in_storage(dentry))
++		hidden_dentry = dtohd2(dentry);
++	else
++		hidden_dentry = dtohd(dentry);
++
++	ASSERT(hidden_dentry);
++	ASSERT(hidden_dentry->d_inode);
++	ASSERT(hidden_dentry->d_inode->i_op);
++
++	if (hidden_dentry->d_inode->i_op->getxattr) {
++		encoded_name = (char *)name;
++		encoded_value = (char *)value;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++		down(&hidden_dentry->d_inode->i_sem);
++#endif
++		/* lock_kernel() already done by caller. */
++		err = hidden_dentry->d_inode->i_op->getxattr(hidden_dentry, encoded_name, encoded_value, size);
++		/* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_dentry->d_inode->i_sem);
++#endif
++	}
++	return err;
++}
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++#if ((LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,21) \
++     && LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,23)) \
++     || LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
++mini_fo_setxattr(struct dentry *dentry, const char *name,
++		 const void *value, size_t size, int flags)
++#else
++mini_fo_setxattr(struct dentry *dentry, const char *name,
++		 void *value, size_t size, int flags)
++#endif
++
++{
++	struct dentry *hidden_dentry = NULL;
++	int err = -EOPNOTSUPP;
++
++	/* Define these anyway, so we don't have as much ifdef'ed code. */
++	char *encoded_value = NULL;
++	char *encoded_name = NULL;
++
++	check_mini_fo_dentry(dentry);
++
++	if(exists_in_storage(dentry))
++		hidden_dentry = dtohd2(dentry);
++	else
++		hidden_dentry = dtohd(dentry);
++
++	ASSERT(hidden_dentry);
++	ASSERT(hidden_dentry->d_inode);
++	ASSERT(hidden_dentry->d_inode->i_op);
++
++	if (hidden_dentry->d_inode->i_op->setxattr) {
++		encoded_name = (char *)name;
++		encoded_value = (char *)value;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++		down(&hidden_dentry->d_inode->i_sem);
++#endif
++		/* lock_kernel() already done by caller. */
++		err = hidden_dentry->d_inode->i_op->setxattr(hidden_dentry, encoded_name, encoded_value, size, flags);
++		/* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_dentry->d_inode->i_sem);
++#endif
++	}
++	return err;
++}
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++mini_fo_removexattr(struct dentry *dentry, const char *name) {
++	struct dentry *hidden_dentry = NULL;
++	int err = -EOPNOTSUPP;
++	char *encoded_name;
++
++	check_mini_fo_dentry(dentry);
++
++	if(exists_in_storage(dentry))
++		hidden_dentry = dtohd2(dentry);
++	else
++		hidden_dentry = dtohd(dentry);
++
++	ASSERT(hidden_dentry);
++	ASSERT(hidden_dentry->d_inode);
++	ASSERT(hidden_dentry->d_inode->i_op);
++
++	if (hidden_dentry->d_inode->i_op->removexattr) {
++		encoded_name = (char *)name;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++		down(&hidden_dentry->d_inode->i_sem);
++#endif
++		/* lock_kernel() already done by caller. */
++		err = hidden_dentry->d_inode->i_op->removexattr(hidden_dentry, encoded_name);
++		/* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_dentry->d_inode->i_sem);
++#endif
++	}
++	return err;
++}
++
++/* BKL held by caller.
++ * dentry->d_inode->i_sem down
++ */
++STATIC int
++mini_fo_listxattr(struct dentry *dentry, char *list, size_t size) {
++	struct dentry *hidden_dentry = NULL;
++	int err = -EOPNOTSUPP;
++	char *encoded_list = NULL;
++
++	check_mini_fo_dentry(dentry);
++
++	if(exists_in_storage(dentry))
++		hidden_dentry = dtohd2(dentry);
++	else
++		hidden_dentry = dtohd(dentry);
++
++	ASSERT(hidden_dentry);
++	ASSERT(hidden_dentry->d_inode);
++	ASSERT(hidden_dentry->d_inode->i_op);
++
++	if (hidden_dentry->d_inode->i_op->listxattr) {
++		encoded_list = list;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&hidden_dentry->d_inode->i_mutex);
++#else
++		down(&hidden_dentry->d_inode->i_sem);
++#endif
++		/* lock_kernel() already done by caller. */
++		err = hidden_dentry->d_inode->i_op->listxattr(hidden_dentry, encoded_list, size);
++		/* unlock_kernel() will be done by caller. */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_dentry->d_inode->i_sem);
++#endif
++	}
++	return err;
++}
++# endif /* defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)) */
++
++struct inode_operations mini_fo_symlink_iops =
++	{
++		readlink:	mini_fo_readlink,
++		follow_link: mini_fo_follow_link,
++		/* mk: permission:	mini_fo_permission, */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++		revalidate:	mini_fo_inode_revalidate,
++#endif
++		setattr:	mini_fo_setattr,
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++		getattr:	mini_fo_getattr,
++		put_link:       mini_fo_put_link,
++#endif
++
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++		setxattr:	mini_fo_setxattr,
++		getxattr:	mini_fo_getxattr,
++		listxattr:	mini_fo_listxattr,
++		removexattr: mini_fo_removexattr
++# endif /* defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20)) */
++	};
++
++struct inode_operations mini_fo_dir_iops =
++	{
++		create:	mini_fo_create,
++		lookup:	mini_fo_lookup,
++		link:	mini_fo_link,
++		unlink:	mini_fo_unlink,
++		symlink:	mini_fo_symlink,
++		mkdir:	mini_fo_mkdir,
++		rmdir:	mini_fo_rmdir,
++		mknod:	mini_fo_mknod,
++		rename:	mini_fo_rename,
++		/* no readlink/follow_link for non-symlinks */
++		// off because we have setattr
++		//    truncate:	mini_fo_truncate,
++		/* mk:permission:	mini_fo_permission, */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++		revalidate:	mini_fo_inode_revalidate,
++#endif
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++		getattr:	mini_fo_getattr,
++#endif
++		setattr:	mini_fo_setattr,
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++		setxattr:	mini_fo_setxattr,
++		getxattr:	mini_fo_getxattr,
++		listxattr:	mini_fo_listxattr,
++		removexattr: mini_fo_removexattr
++# endif /* XATTR && LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) */
++	};
++
++struct inode_operations mini_fo_main_iops =
++	{
++		/* permission:	mini_fo_permission, */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++		revalidate:	mini_fo_inode_revalidate,
++#endif
++		setattr:	mini_fo_setattr,
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++		getattr:	mini_fo_getattr,
++#endif
++#if defined(XATTR) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20))
++		setxattr:	mini_fo_setxattr,
++		getxattr:	mini_fo_getxattr,
++		listxattr:	mini_fo_listxattr,
++		removexattr:    mini_fo_removexattr
++# endif /* XATTR && LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,20) */
++	};
+--- /dev/null
++++ b/fs/mini_fo/main.c
+@@ -0,0 +1,423 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++#include <linux/module.h>
++
++/* This definition must only appear after we include <linux/module.h> */
++#ifndef MODULE_LICENSE
++# define MODULE_LICENSE(bison)
++#endif /* not MODULE_LICENSE */
++
++/*
++ * This is the mini_fo tri interpose function, which extends the
++ * functionality of the regular interpose by interposing a higher
++ * level inode on top of two lower level ones: the base filesystem
++ * inode and the storage filesystem inode.
++ *
++ *  sb we pass is mini_fo's super_block
++ */
++int
++mini_fo_tri_interpose(dentry_t *hidden_dentry,
++		      dentry_t *hidden_sto_dentry,
++		      dentry_t *dentry, super_block_t *sb, int flag)
++{
++	inode_t *hidden_inode = NULL;
++	inode_t *hidden_sto_inode = NULL; /* store corresponding storage inode */
++	int err = 0;
++	inode_t *inode;
++
++	/* Pointer to hidden_sto_inode if exists, else to hidden_inode.
++	 * This is used to copy the attributes of the correct inode. */
++	inode_t *master_inode;
++
++	if(hidden_dentry)
++		hidden_inode = hidden_dentry->d_inode;
++	if(hidden_sto_dentry)
++		hidden_sto_inode = hidden_sto_dentry->d_inode;
++
++	ASSERT(dentry->d_inode == NULL);
++
++	/* mk: One of the inodes associated with the dentrys is likely to
++	 * be NULL, so carefull:
++	 */
++	ASSERT((hidden_inode != NULL) || (hidden_sto_inode != NULL));
++
++	if(hidden_sto_inode)
++		master_inode = hidden_sto_inode;
++	else
++		master_inode = hidden_inode;
++
++	/*
++	 * We allocate our new inode below, by calling iget.
++	 * iget will call our read_inode which will initialize some
++	 * of the new inode's fields
++	 */
++
++	/*
++	 * original: inode = iget(sb, hidden_inode->i_ino);
++	 */
++	inode = iget(sb, iunique(sb, 25));
++	if (!inode) {
++		err = -EACCES;		/* should be impossible??? */
++		goto out;
++	}
++
++	/*
++	 * interpose the inode if not already interposed
++	 *   this is possible if the inode is being reused
++	 * XXX: what happens if we get_empty_inode() but there's another already?
++	 * for now, ASSERT() that this can't happen; fix later.
++	 */
++	if (itohi(inode) != NULL) {
++		printk(KERN_CRIT "mini_fo_tri_interpose: itohi(inode) != NULL.\n");
++	}
++	if (itohi2(inode) != NULL) {
++		printk(KERN_CRIT "mini_fo_tri_interpose: itohi2(inode) != NULL.\n");
++	}
++
++	/* mk: Carefull, igrab can't handle NULL inodes (ok, why should it?), so
++	 * we need to check here:
++	 */
++	if(hidden_inode)
++		itohi(inode) = igrab(hidden_inode);
++	else
++		itohi(inode) = NULL;
++
++	if(hidden_sto_inode)
++		itohi2(inode) = igrab(hidden_sto_inode);
++	else
++		itohi2(inode) = NULL;
++
++
++	/* Use different set of inode ops for symlinks & directories*/
++	if (S_ISLNK(master_inode->i_mode))
++		inode->i_op = &mini_fo_symlink_iops;
++	else if (S_ISDIR(master_inode->i_mode))
++		inode->i_op = &mini_fo_dir_iops;
++
++	/* Use different set of file ops for directories */
++	if (S_ISDIR(master_inode->i_mode))
++		inode->i_fop = &mini_fo_dir_fops;
++
++	/* properly initialize special inodes */
++	if (S_ISBLK(master_inode->i_mode) || S_ISCHR(master_inode->i_mode) ||
++	    S_ISFIFO(master_inode->i_mode) || S_ISSOCK(master_inode->i_mode)) {
++		init_special_inode(inode, master_inode->i_mode, master_inode->i_rdev);
++	}
++
++	/* Fix our inode's address operations to that of the lower inode */
++	if (inode->i_mapping->a_ops != master_inode->i_mapping->a_ops) {
++		inode->i_mapping->a_ops = master_inode->i_mapping->a_ops;
++	}
++
++	/* only (our) lookup wants to do a d_add */
++	if (flag)
++		d_add(dentry, inode);
++	else
++		d_instantiate(dentry, inode);
++
++	ASSERT(dtopd(dentry) != NULL);
++
++	/* all well, copy inode attributes */
++	fist_copy_attr_all(inode, master_inode);
++
++ out:
++	return err;
++}
++
++/* parse mount options "base=" and "sto=" */
++dentry_t *
++mini_fo_parse_options(super_block_t *sb, char *options)
++{
++	dentry_t *hidden_root = ERR_PTR(-EINVAL);
++	dentry_t *hidden_root2 = ERR_PTR(-EINVAL);
++	struct nameidata nd, nd2;
++	char *name, *tmp, *end;
++	int err = 0;
++
++	/* We don't want to go off the end of our arguments later on. */
++	for (end = options; *end; end++);
++
++	while (options < end) {
++		tmp = options;
++		while (*tmp && *tmp != ',')
++			tmp++;
++		*tmp = '\0';
++		if (!strncmp("base=", options, 5)) {
++			name = options + 5;
++			printk(KERN_INFO "mini_fo: using base directory: %s\n", name);
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++			if (path_init(name, LOOKUP_FOLLOW, &nd))
++				err = path_walk(name, &nd);
++#else
++			err = path_lookup(name, LOOKUP_FOLLOW, &nd);
++#endif
++			if (err) {
++				printk(KERN_CRIT "mini_fo: error accessing hidden directory '%s'\n", name);
++				hidden_root = ERR_PTR(err);
++				goto out;
++			}
++			hidden_root = nd.dentry;
++			stopd(sb)->base_dir_dentry = nd.dentry;
++			stopd(sb)->hidden_mnt = nd.mnt;
++
++		} else if(!strncmp("sto=", options, 4)) {
++			/* parse the storage dir */
++			name = options + 4;
++			printk(KERN_INFO "mini_fo: using storage directory: %s\n", name);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++			if(path_init(name, LOOKUP_FOLLOW, &nd2))
++				err = path_walk(name, &nd2);
++#else
++                        err = path_lookup(name, LOOKUP_FOLLOW, &nd2);
++#endif
++			if(err) {
++				printk(KERN_CRIT "mini_fo: error accessing hidden storage directory '%s'\n", name);
++
++				hidden_root2 = ERR_PTR(err);
++				goto out;
++			}
++			hidden_root2 = nd2.dentry;
++			stopd(sb)->storage_dir_dentry = nd2.dentry;
++			stopd(sb)->hidden_mnt2 = nd2.mnt;
++			stohs2(sb) = hidden_root2->d_sb;
++
++			/* validate storage dir, this is done in
++			 * mini_fo_read_super for the base directory.
++			 */
++			if (IS_ERR(hidden_root2)) {
++				printk(KERN_WARNING "mini_fo_parse_options: storage dentry lookup failed (err = %ld)\n", PTR_ERR(hidden_root2));
++				goto out;
++			}
++			if (!hidden_root2->d_inode) {
++				printk(KERN_WARNING "mini_fo_parse_options: no storage dir to interpose on.\n");
++				goto out;
++			}
++			stohs2(sb) = hidden_root2->d_sb;
++		} else {
++			printk(KERN_WARNING "mini_fo: unrecognized option '%s'\n", options);
++			hidden_root = ERR_PTR(-EINVAL);
++			goto out;
++		}
++		options = tmp + 1;
++	}
++
++ out:
++	if(IS_ERR(hidden_root2))
++		return hidden_root2;
++	return hidden_root;
++}
++
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++static int
++#else
++super_block_t *
++#endif
++mini_fo_read_super(super_block_t *sb, void *raw_data, int silent)
++{
++	dentry_t *hidden_root;
++	int err = 0;
++
++	if (!raw_data) {
++		printk(KERN_WARNING "mini_fo_read_super: missing argument\n");
++		err = -EINVAL;
++		goto out;
++	}
++	/*
++	 * Allocate superblock private data
++	 */
++	__stopd(sb) = kmalloc(sizeof(struct mini_fo_sb_info), GFP_KERNEL);
++	if (!stopd(sb)) {
++		printk(KERN_WARNING "%s: out of memory\n", __FUNCTION__);
++		err = -ENOMEM;
++		goto out;
++	}
++	stohs(sb) = NULL;
++
++	hidden_root = mini_fo_parse_options(sb, raw_data);
++	if (IS_ERR(hidden_root)) {
++		printk(KERN_WARNING "mini_fo_read_super: lookup_dentry failed (err = %ld)\n", PTR_ERR(hidden_root));
++		err = PTR_ERR(hidden_root);
++		goto out_free;
++	}
++	if (!hidden_root->d_inode) {
++		printk(KERN_WARNING "mini_fo_read_super: no directory to interpose on\n");
++		goto out_free;
++	}
++	stohs(sb) = hidden_root->d_sb;
++
++	/*
++	 * Linux 2.4.2-ac3 and beyond has code in
++	 * mm/filemap.c:generic_file_write() that requires sb->s_maxbytes
++	 * to be populated.  If not set, all write()s under that sb will
++	 * return 0.
++	 *
++	 * Linux 2.4.4+ automatically sets s_maxbytes to MAX_NON_LFS;
++	 * the filesystem should override it only if it supports LFS.
++	 */
++	/* non-SCA code is good to go with LFS */
++	sb->s_maxbytes = hidden_root->d_sb->s_maxbytes;
++
++	sb->s_op = &mini_fo_sops;
++	/*
++	 * we can't use d_alloc_root if we want to use
++	 * our own interpose function unchanged,
++	 * so we simply replicate *most* of the code in d_alloc_root here
++	 */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++	sb->s_root = d_alloc(NULL, &(const struct qstr) { "/", 1, 0 });
++#else
++	sb->s_root = d_alloc(NULL, &(const struct qstr){hash: 0, name: "/", len : 1});
++#endif
++	if (IS_ERR(sb->s_root)) {
++		printk(KERN_WARNING "mini_fo_read_super: d_alloc failed\n");
++		err = -ENOMEM;
++		goto out_dput;
++	}
++
++	sb->s_root->d_op = &mini_fo_dops;
++	sb->s_root->d_sb = sb;
++	sb->s_root->d_parent = sb->s_root;
++
++	/* link the upper and lower dentries */
++	__dtopd(sb->s_root) = (struct mini_fo_dentry_info *)
++		kmalloc(sizeof(struct mini_fo_dentry_info), GFP_KERNEL);
++	if (!dtopd(sb->s_root)) {
++		err = -ENOMEM;
++		goto out_dput2;
++	}
++	dtopd(sb->s_root)->state = MODIFIED;
++	dtohd(sb->s_root) = hidden_root;
++
++	/* fanout relevant, interpose on storage root dentry too */
++	dtohd2(sb->s_root) = stopd(sb)->storage_dir_dentry;
++
++	/* ...and call tri-interpose to interpose root dir inodes
++	 * if (mini_fo_interpose(hidden_root, sb->s_root, sb, 0))
++	 */
++	if(mini_fo_tri_interpose(hidden_root, dtohd2(sb->s_root), sb->s_root, sb, 0))
++		goto out_dput2;
++
++	/* initalize the wol list */
++	itopd(sb->s_root->d_inode)->deleted_list_size = -1;
++	itopd(sb->s_root->d_inode)->renamed_list_size = -1;
++	meta_build_lists(sb->s_root);
++
++	goto out;
++
++ out_dput2:
++	dput(sb->s_root);
++ out_dput:
++	dput(hidden_root);
++	dput(dtohd2(sb->s_root)); /* release the hidden_sto_dentry too */
++ out_free:
++	kfree(stopd(sb));
++	__stopd(sb) = NULL;
++ out:
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++        return err;
++#else
++        if (err) {
++		return ERR_PTR(err);
++        } else {
++		return sb;
++        }
++#endif
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++static int mini_fo_get_sb(struct file_system_type *fs_type,
++					  int flags, const char *dev_name,
++					  void *raw_data, struct vfsmount *mnt)
++{
++	return get_sb_nodev(fs_type, flags, raw_data, mini_fo_read_super, mnt);
++}
++#else
++static struct super_block *mini_fo_get_sb(struct file_system_type *fs_type,
++					  int flags, const char *dev_name,
++					  void *raw_data)
++{
++	return get_sb_nodev(fs_type, flags, raw_data, mini_fo_read_super);
++}
++#endif
++
++void mini_fo_kill_block_super(struct super_block *sb)
++{
++	generic_shutdown_super(sb);
++	/*
++	 *      XXX: BUG: Halcrow: Things get unstable sometime after this point:
++	 *      lib/rwsem-spinlock.c:127: spin_is_locked on uninitialized
++	 *      fs/fs-writeback.c:402: spin_lock(fs/super.c:a0381828) already
++	 *      locked by fs/fs-writeback.c/402
++	 *
++	 *      Apparently, someone's not releasing a lock on sb_lock...
++	 */
++}
++
++static struct file_system_type mini_fo_fs_type = {
++	.owner          = THIS_MODULE,
++	.name           = "mini_fo",
++	.get_sb         = mini_fo_get_sb,
++	.kill_sb        = mini_fo_kill_block_super,
++	.fs_flags       = 0,
++};
++
++
++#else
++static DECLARE_FSTYPE(mini_fo_fs_type, "mini_fo", mini_fo_read_super, 0);
++#endif
++
++static int __init init_mini_fo_fs(void)
++{
++	printk("Registering mini_fo version $Id$\n");
++	return register_filesystem(&mini_fo_fs_type);
++}
++static void __exit exit_mini_fo_fs(void)
++{
++	printk("Unregistering mini_fo version $Id$\n");
++	unregister_filesystem(&mini_fo_fs_type);
++}
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++EXPORT_NO_SYMBOLS;
++#endif
++
++MODULE_AUTHOR("Erez Zadok <ezk@cs.sunysb.edu>");
++MODULE_DESCRIPTION("FiST-generated mini_fo filesystem");
++MODULE_LICENSE("GPL");
++
++/* MODULE_PARM(fist_debug_var, "i"); */
++/* MODULE_PARM_DESC(fist_debug_var, "Debug level"); */
++
++module_init(init_mini_fo_fs)
++module_exit(exit_mini_fo_fs)
+--- /dev/null
++++ b/fs/mini_fo/Makefile
+@@ -0,0 +1,17 @@
++#
++# Makefile for mini_fo 2.4 and 2.6 Linux kernels
++#
++# Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++#
++# This program is free software; you can redistribute it and/or
++# modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation; either version
++# 2 of the License, or (at your option) any later version.
++#
++
++obj-$(CONFIG_MINI_FO) := mini_fo.o
++mini_fo-objs   := meta.o dentry.o file.o inode.o main.o super.o state.o aux.o
++
++# dependencies
++${mini_fo-objs}: mini_fo.h fist.h
++
+--- /dev/null
++++ b/fs/mini_fo/meta.c
+@@ -0,0 +1,1000 @@
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif /* HAVE_CONFIG_H */
++#include "fist.h"
++#include "mini_fo.h"
++
++int meta_build_lists(dentry_t *dentry)
++{
++	struct mini_fo_inode_info *inode_info;
++
++	dentry_t *meta_dentry = 0;
++	file_t *meta_file = 0;
++	mm_segment_t old_fs;
++	void *buf;
++
++	int bytes, len;
++	struct vfsmount *meta_mnt;
++	char *entry;
++
++	inode_info = itopd(dentry->d_inode);
++	if(!(inode_info->deleted_list_size == -1 &&
++	     inode_info->renamed_list_size == -1)) {
++		printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                  Error, list(s) not virgin.\n");
++		return -1;
++	}
++
++	/* init our meta lists */
++	INIT_LIST_HEAD(&inode_info->deleted_list);
++	inode_info->deleted_list_size = 0;
++
++	INIT_LIST_HEAD(&inode_info->renamed_list);
++	inode_info->renamed_list_size = 0;
++
++  	/* might there be a META-file? */
++	if(dtohd2(dentry) && dtohd2(dentry)->d_inode) {
++		meta_dentry = lookup_one_len(META_FILENAME,
++					     dtohd2(dentry),
++					     strlen(META_FILENAME));
++		if(!meta_dentry->d_inode) {
++			dput(meta_dentry);
++			goto out_ok;
++		}
++		/* $%& err, is this correct? */
++		meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++		mntget(meta_mnt);
++
++
++		/* open META-file for reading */
++		meta_file = dentry_open(meta_dentry, meta_mnt, 0x0);
++		if(!meta_file || IS_ERR(meta_file)) {
++			printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                          ERROR opening META file.\n");
++			goto out_err;
++		}
++
++		/* check if fs supports reading */
++		if(!meta_file->f_op->read) {
++			printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                          ERROR, fs does not support reading.\n");
++			goto out_err_close;
++		}
++
++		/* allocate a page for transfering the data */
++		buf = (void *) __get_free_page(GFP_KERNEL);
++		if(!buf) {
++			printk(KERN_CRIT "mini_fo: meta_build_lists: \
++                                          ERROR, out of mem.\n");
++			goto out_err_close;
++		}
++		meta_file->f_pos = 0;
++		old_fs = get_fs();
++		set_fs(KERNEL_DS);
++		do {
++			char *c;
++			bytes = meta_file->f_op->read(meta_file, buf, PAGE_SIZE, &meta_file->f_pos);
++			if(bytes == PAGE_SIZE) {
++				/* trim a cut off filename and adjust f_pos to get it next time */
++				for(c = (char*) buf+PAGE_SIZE;
++				    *c != '\n';
++				    c--, bytes--, meta_file->f_pos--);
++			}
++			entry = (char *) buf;
++			while(entry < (char *) buf+bytes) {
++
++				char *old_path;
++				char *dir_name;
++				int old_len, new_len;
++
++				/* len without '\n'*/
++				len = (int) (strchr(entry, '\n') - entry);
++				switch (*entry) {
++				case 'D':
++					/* format: "D filename" */
++					meta_list_add_d_entry(dentry,
++							      entry+2,
++							      len-2);
++					break;
++				case 'R':
++					/* format: "R path/xy/dir newDir" */
++					old_path = entry+2;
++					dir_name = strchr(old_path, ' ') + 1;
++					old_len =  dir_name - old_path - 1;
++					new_len = ((int) entry) + len - ((int ) dir_name);
++					meta_list_add_r_entry(dentry,
++							      old_path,
++							      old_len,
++							      dir_name,
++							      new_len);
++					break;
++				default:
++					/* unknown entry type detected */
++					break;
++				}
++				entry += len+1;
++			}
++
++		} while(meta_file->f_pos < meta_dentry->d_inode->i_size);
++
++		free_page((unsigned long) buf);
++		set_fs(old_fs);
++		fput(meta_file);
++	}
++	goto out_ok;
++
++ out_err_close:
++	fput(meta_file);
++ out_err:
++	mntput(meta_mnt);
++	dput(meta_dentry);
++	return -1;
++ out_ok:
++	return 1; /* check this!!! inode_info->wol_size; */
++}
++
++/* cleanups up all lists and free's the mem by dentry */
++int meta_put_lists(dentry_t *dentry)
++{
++	if(!dentry || !dentry->d_inode) {
++		printk("mini_fo: meta_put_lists: invalid dentry passed.\n");
++		return -1;
++	}
++	return __meta_put_lists(dentry->d_inode);
++}
++
++/* cleanups up all lists and free's the mem by inode */
++int __meta_put_lists(inode_t *inode)
++{
++	int err = 0;
++	if(!inode || !itopd(inode)) {
++		printk("mini_fo: __meta_put_lists: invalid inode passed.\n");
++		return -1;
++	}
++	err = __meta_put_d_list(inode);
++	err |= __meta_put_r_list(inode);
++	return err;
++}
++
++int meta_sync_lists(dentry_t *dentry)
++{
++	int err = 0;
++	if(!dentry || !dentry->d_inode) {
++		printk("mini_fo: meta_sync_lists: \
++                        invalid dentry passed.\n");
++		return -1;
++	}
++	err = meta_sync_d_list(dentry, 0);
++	err |= meta_sync_r_list(dentry, 1);
++	return err;
++}
++
++
++/* remove all D entries from the renamed list and free the mem */
++int __meta_put_d_list(inode_t *inode)
++{
++	struct list_head *tmp;
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	if(!inode || !itopd(inode)) {
++		printk(KERN_CRIT "mini_fo: __meta_put_d_list: \
++                                  invalid inode passed.\n");
++		return -1;
++	}
++	inode_info = itopd(inode);
++
++        /* nuke the DELETED-list */
++        if(inode_info->deleted_list_size <= 0)
++		return 0;
++
++	while(!list_empty(&inode_info->deleted_list)) {
++		tmp = inode_info->deleted_list.next;
++		list_del(tmp);
++		del_entry = list_entry(tmp, struct deleted_entry, list);
++		kfree(del_entry->name);
++		kfree(del_entry);
++	}
++	inode_info->deleted_list_size = 0;
++
++	return 0;
++}
++
++/* remove all R entries from the renamed list and free the mem */
++int __meta_put_r_list(inode_t *inode)
++{
++	struct list_head *tmp;
++	struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	if(!inode || !itopd(inode)) {
++		printk(KERN_CRIT "mini_fo: meta_put_r_list: invalid inode.\n");
++		return -1;
++	}
++	inode_info = itopd(inode);
++
++        /* nuke the RENAMED-list */
++        if(inode_info->renamed_list_size <= 0)
++		return 0;
++
++	while(!list_empty(&inode_info->renamed_list)) {
++		tmp = inode_info->renamed_list.next;
++		list_del(tmp);
++		ren_entry = list_entry(tmp, struct renamed_entry, list);
++		kfree(ren_entry->new_name);
++		kfree(ren_entry->old_name);
++		kfree(ren_entry);
++	}
++	inode_info->renamed_list_size = 0;
++
++	return 0;
++}
++
++int meta_add_d_entry(dentry_t *dentry, const char *name, int len)
++{
++	int err = 0;
++	err = meta_list_add_d_entry(dentry, name, len);
++	err |= meta_write_d_entry(dentry,name,len);
++	return err;
++}
++
++/* add a D entry to the deleted list */
++int meta_list_add_d_entry(dentry_t *dentry, const char *name, int len)
++{
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT "mini_fo: meta_list_add_d_entry: \
++                                  invalid dentry passed.\n");
++		return -1;
++	}
++	inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->deleted_list_size < 0)
++                return -1;
++
++        del_entry = (struct deleted_entry *)
++		kmalloc(sizeof(struct deleted_entry), GFP_KERNEL);
++        del_entry->name = (char*) kmalloc(len, GFP_KERNEL);
++        if(!del_entry || !del_entry->name) {
++                printk(KERN_CRIT "mini_fo: meta_list_add_d_entry: \
++                                  out of mem.\n");
++		kfree(del_entry->name);
++		kfree(del_entry);
++                return -ENOMEM;
++        }
++
++        strncpy(del_entry->name, name, len);
++        del_entry->len = len;
++
++        list_add(&del_entry->list, &inode_info->deleted_list);
++        inode_info->deleted_list_size++;
++        return 0;
++}
++
++int meta_add_r_entry(dentry_t *dentry,
++			  const char *old_name, int old_len,
++			  const char *new_name, int new_len)
++{
++	int err = 0;
++	err = meta_list_add_r_entry(dentry,
++				    old_name, old_len,
++				    new_name, new_len);
++	err |= meta_write_r_entry(dentry,
++				  old_name, old_len,
++				  new_name, new_len);
++	return err;
++}
++
++/* add a R entry to the renamed list */
++int meta_list_add_r_entry(dentry_t *dentry,
++			  const char *old_name, int old_len,
++			  const char *new_name, int new_len)
++{
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT "mini_fo: meta_list_add_r_entry: \
++                                  invalid dentry passed.\n");
++		return -1;
++	}
++	inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->renamed_list_size < 0)
++                return -1;
++
++        ren_entry = (struct renamed_entry *)
++		kmalloc(sizeof(struct renamed_entry), GFP_KERNEL);
++        ren_entry->old_name = (char*) kmalloc(old_len, GFP_KERNEL);
++        ren_entry->new_name = (char*) kmalloc(new_len, GFP_KERNEL);
++
++        if(!ren_entry || !ren_entry->old_name || !ren_entry->new_name) {
++                printk(KERN_CRIT "mini_fo: meta_list_add_r_entry: \
++                                  out of mem.\n");
++		kfree(ren_entry->new_name);
++		kfree(ren_entry->old_name);
++		kfree(ren_entry);
++                return -ENOMEM;
++        }
++
++        strncpy(ren_entry->old_name, old_name, old_len);
++        ren_entry->old_len = old_len;
++        strncpy(ren_entry->new_name, new_name, new_len);
++        ren_entry->new_len = new_len;
++
++        list_add(&ren_entry->list, &inode_info->renamed_list);
++        inode_info->renamed_list_size++;
++        return 0;
++}
++
++
++int meta_remove_r_entry(dentry_t *dentry, const char *name, int len)
++{
++	int err = 0;
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT
++		       "mini_fo: meta_remove_r_entry: \
++                        invalid dentry passed.\n");
++		return -1;
++	}
++
++	err = meta_list_remove_r_entry(dentry, name, len);
++	err |= meta_sync_lists(dentry);
++	return err;
++}
++
++int meta_list_remove_r_entry(dentry_t *dentry, const char *name, int len)
++{
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT
++		       "mini_fo: meta_list_remove_r_entry: \
++                        invalid dentry passed.\n");
++		return -1;
++	}
++	return __meta_list_remove_r_entry(dentry->d_inode, name, len);
++}
++
++int __meta_list_remove_r_entry(inode_t *inode, const char *name, int len)
++{
++	struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	if(!inode || !itopd(inode))
++		printk(KERN_CRIT
++		       "mini_fo: __meta_list_remove_r_entry: \
++                        invalid inode passed.\n");
++	inode_info = itopd(inode);
++
++        if(inode_info->renamed_list_size < 0)
++                return -1;
++        if(inode_info->renamed_list_size == 0)
++                return 1;
++
++	list_for_each(tmp, &inode_info->renamed_list) {
++		ren_entry = list_entry(tmp, struct renamed_entry, list);
++		if(ren_entry->new_len != len)
++			continue;
++
++		if(!strncmp(ren_entry->new_name, name, len)) {
++			list_del(tmp);
++			kfree(ren_entry->new_name);
++			kfree(ren_entry->old_name);
++			kfree(ren_entry);
++			inode_info->renamed_list_size--;
++			return 0;
++		}
++	}
++	return 1;
++}
++
++
++/* append a single D entry to the meta file */
++int meta_write_d_entry(dentry_t *dentry, const char *name, int len)
++{
++	dentry_t *meta_dentry = 0;
++        file_t *meta_file = 0;
++        mm_segment_t old_fs;
++
++        int bytes, err;
++        struct vfsmount *meta_mnt = 0;
++        char *buf;
++
++	err = 0;
++
++	if(itopd(dentry->d_inode)->deleted_list_size < 0) {
++		err = -1;
++		goto out;
++	}
++
++	if(dtopd(dentry)->state == UNMODIFIED) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                          build_sto_structure failed.\n");
++			goto out;
++                }
++        }
++	meta_dentry = lookup_one_len(META_FILENAME,
++				     dtohd2(dentry), strlen (META_FILENAME));
++
++	/* We need to create a META-file */
++        if(!meta_dentry->d_inode) {
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++		vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry,
++			   S_IRUSR | S_IWUSR,
++			   NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry,
++			   S_IRUSR | S_IWUSR);
++#endif
++	}
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  ERROR opening meta file.\n");
++                mntput(meta_mnt); /* $%& is this necessary? */
++                dput(meta_dentry);
++		err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++	meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++	/* size: len for name, 1 for \n and 2 for "D " */
++	buf = (char *) kmalloc(len+3, GFP_KERNEL);
++	if (!buf) {
++		printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  out of mem.\n");
++		return -ENOMEM;
++	}
++
++	buf[0] = 'D';
++	buf[1] = ' ';
++	strncpy(buf+2, name, len);
++	buf[len+2] = '\n';
++	bytes = meta_file->f_op->write(meta_file, buf, len+3,
++				       &meta_file->f_pos);
++	if(bytes != len+3) {
++		printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
++                                  ERROR writing.\n");
++		err = -1;
++	}
++	kfree(buf);
++	set_fs(old_fs);
++
++ out_err_close:
++	fput(meta_file);
++ out:
++	return err;
++}
++
++/* append a single R entry to the meta file */
++int meta_write_r_entry(dentry_t *dentry,
++		       const char *old_name, int old_len,
++		       const char *new_name, int new_len)
++{
++	dentry_t *meta_dentry = 0;
++        file_t *meta_file = 0;
++        mm_segment_t old_fs;
++
++        int bytes, err, buf_len;
++	struct vfsmount *meta_mnt = 0;
++        char *buf;
++
++
++	err = 0;
++
++	if(itopd(dentry->d_inode)->renamed_list_size < 0) {
++		err = -1;
++		goto out;
++	}
++
++	/* build the storage structure? */
++	if(dtopd(dentry)->state == UNMODIFIED) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
++                                          build_sto_structure failed.\n");
++			goto out;
++                }
++        }
++	meta_dentry = lookup_one_len(META_FILENAME,
++				     dtohd2(dentry),
++				     strlen (META_FILENAME));
++        if(!meta_dentry->d_inode) {
++                /* We need to create a META-file */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++                vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry, S_IRUSR | S_IWUSR, NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry, S_IRUSR | S_IWUSR);
++#endif
++	}
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
++                                  ERROR opening meta file.\n");
++                mntput(meta_mnt);
++                dput(meta_dentry);
++		err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++	meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++	/* size: 2 for "R ", old_len+new_len for names, 1 blank+1 \n */
++	buf_len = old_len + new_len + 4;
++	buf = (char *) kmalloc(buf_len, GFP_KERNEL);
++	if (!buf) {
++		printk(KERN_CRIT "mini_fo: meta_write_r_entry: out of mem.\n");
++		return -ENOMEM;
++	}
++
++	buf[0] = 'R';
++	buf[1] = ' ';
++	strncpy(buf + 2, old_name, old_len);
++	buf[old_len + 2] = ' ';
++	strncpy(buf + old_len + 3, new_name, new_len);
++	buf[buf_len -1] = '\n';
++	bytes = meta_file->f_op->write(meta_file, buf, buf_len, &meta_file->f_pos);
++	if(bytes != buf_len) {
++		printk(KERN_CRIT "mini_fo: meta_write_r_entry: ERROR writing.\n");
++		err = -1;
++	}
++
++	kfree(buf);
++	set_fs(old_fs);
++
++ out_err_close:
++	fput(meta_file);
++ out:
++	return err;
++}
++
++/* sync D list to disk, append data if app_flag is 1 */
++/* check the meta_mnt, which seems not to be used (properly)  */
++
++int meta_sync_d_list(dentry_t *dentry, int app_flag)
++{
++	dentry_t *meta_dentry;
++        file_t *meta_file;
++        mm_segment_t old_fs;
++
++        int bytes, err;
++        struct vfsmount *meta_mnt;
++        char *buf;
++
++	struct list_head *tmp;
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	err = 0;
++	meta_file=0;
++	meta_mnt=0;
++
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                  invalid inode passed.\n");
++		err = -1;
++		goto out;
++	}
++	inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->deleted_list_size < 0) {
++		err = -1;
++		goto out;
++	}
++
++	/* ok, there is something to sync */
++
++	/* build the storage structure? */
++        if(!dtohd2(dentry) && !itohi2(dentry->d_inode)) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          build_sto_structure failed.\n");
++			goto out;
++                }
++        }
++	meta_dentry = lookup_one_len(META_FILENAME,
++				     dtohd2(dentry),
++				     strlen(META_FILENAME));
++        if(!meta_dentry->d_inode) {
++                /* We need to create a META-file */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++                vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry, S_IRUSR | S_IWUSR, NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry, S_IRUSR | S_IWUSR);
++#endif
++		app_flag = 0;
++	}
++	/* need we truncate the meta file? */
++	if(!app_flag) {
++		struct iattr newattrs;
++                newattrs.ia_size = 0;
++                newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&meta_dentry->d_inode->i_mutex);
++#else
++                down(&meta_dentry->d_inode->i_sem);
++#endif
++                err = notify_change(meta_dentry, &newattrs);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&meta_dentry->d_inode->i_mutex);
++#else
++                up(&meta_dentry->d_inode->i_sem);
++#endif
++
++                if(err || meta_dentry->d_inode->i_size != 0) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          ERROR truncating meta file.\n");
++                        goto out_err_close;
++		}
++	}
++
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                  ERROR opening meta file.\n");
++		/* we don't mntget so we dont't mntput (for now)
++		 * mntput(meta_mnt);
++		 */
++		dput(meta_dentry);
++		err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++	meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++	/* here we go... */
++        list_for_each(tmp, &inode_info->deleted_list) {
++		del_entry = list_entry(tmp, struct deleted_entry, list);
++
++		/* size: len for name, 1 for \n and 2 for "D " */
++		buf = (char *) kmalloc(del_entry->len+3, GFP_KERNEL);
++		if (!buf) {
++			printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          out of mem.\n");
++			return -ENOMEM;
++		}
++
++		buf[0] = 'D';
++		buf[1] = ' ';
++		strncpy(buf+2, del_entry->name, del_entry->len);
++		buf[del_entry->len+2] = '\n';
++		bytes = meta_file->f_op->write(meta_file, buf,
++					       del_entry->len+3,
++					       &meta_file->f_pos);
++		if(bytes != del_entry->len+3) {
++			printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
++                                          ERROR writing.\n");
++			err |= -1;
++		}
++		kfree(buf);
++	}
++	set_fs(old_fs);
++
++ out_err_close:
++	fput(meta_file);
++ out:
++	return err;
++
++}
++
++int meta_sync_r_list(dentry_t *dentry, int app_flag)
++{
++	dentry_t *meta_dentry;
++        file_t *meta_file;
++        mm_segment_t old_fs;
++
++        int bytes, err, buf_len;
++        struct vfsmount *meta_mnt;
++        char *buf;
++
++	struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	err = 0;
++	meta_file=0;
++	meta_mnt=0;
++
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                  invalid dentry passed.\n");
++		err = -1;
++		goto out;
++	}
++	inode_info = itopd(dentry->d_inode);
++
++        if(inode_info->deleted_list_size < 0) {
++		err = -1;
++		goto out;
++	}
++
++	/* ok, there is something to sync */
++
++	/* build the storage structure? */
++        if(!dtohd2(dentry) && !itohi2(dentry->d_inode)) {
++                err = build_sto_structure(dentry->d_parent, dentry);
++                if(err) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          build_sto_structure failed.\n");
++			goto out;
++                }
++        }
++	meta_dentry = lookup_one_len(META_FILENAME,
++				     dtohd2(dentry),
++				     strlen(META_FILENAME));
++        if(!meta_dentry->d_inode) {
++                /* We need to create a META-file */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++                vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry, S_IRUSR | S_IWUSR, NULL);
++#else
++                vfs_create(dtohd2(dentry)->d_inode,
++			   meta_dentry, S_IRUSR | S_IWUSR);
++#endif
++		app_flag = 0;
++	}
++	/* need we truncate the meta file? */
++	if(!app_flag) {
++		struct iattr newattrs;
++                newattrs.ia_size = 0;
++                newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_lock(&meta_dentry->d_inode->i_mutex);
++#else
++                down(&meta_dentry->d_inode->i_sem);
++#endif
++                err = notify_change(meta_dentry, &newattrs);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&meta_dentry->d_inode->i_mutex);
++#else
++                up(&meta_dentry->d_inode->i_sem);
++#endif
++                if(err || meta_dentry->d_inode->i_size != 0) {
++                        printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          ERROR truncating meta file.\n");
++                        goto out_err_close;
++		}
++	}
++
++        /* open META-file for writing */
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        if(!meta_file || IS_ERR(meta_file)) {
++                printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                  ERROR opening meta file.\n");
++		/* we don't mntget so we dont't mntput (for now)
++		 * mntput(meta_mnt);
++		 */
++		dput(meta_dentry);
++		err = -1;
++                goto out;
++        }
++
++        /* check if fs supports writing */
++        if(!meta_file->f_op->write) {
++                printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                  ERROR, fs does not support writing.\n");
++                goto out_err_close;
++        }
++
++	meta_file->f_pos = meta_dentry->d_inode->i_size; /* append */
++        old_fs = get_fs();
++        set_fs(KERNEL_DS);
++
++	/* here we go... */
++        list_for_each(tmp, &inode_info->renamed_list) {
++		ren_entry = list_entry(tmp, struct renamed_entry, list);
++		/* size:
++		 * 2 for "R ", old_len+new_len for names, 1 blank+1 \n */
++		buf_len = ren_entry->old_len + ren_entry->new_len + 4;
++		buf = (char *) kmalloc(buf_len, GFP_KERNEL);
++		if (!buf) {
++			printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          out of mem.\n");
++			return -ENOMEM;
++		}
++		buf[0] = 'R';
++		buf[1] = ' ';
++		strncpy(buf + 2, ren_entry->old_name, ren_entry->old_len);
++		buf[ren_entry->old_len + 2] = ' ';
++		strncpy(buf + ren_entry->old_len + 3,
++			ren_entry->new_name, ren_entry->new_len);
++		buf[buf_len - 1] = '\n';
++		bytes = meta_file->f_op->write(meta_file, buf,
++					       buf_len, &meta_file->f_pos);
++		if(bytes != buf_len) {
++			printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
++                                          ERROR writing.\n");
++			err |= -1;
++		}
++		kfree(buf);
++	}
++	set_fs(old_fs);
++
++ out_err_close:
++	fput(meta_file);
++ out:
++	return err;
++}
++
++int meta_check_d_entry(dentry_t *dentry, const char *name, int len)
++{
++	if(!dentry || !dentry->d_inode)
++		printk(KERN_CRIT "mini_fo: meta_check_d_dentry: \
++                                  invalid dentry passed.\n");
++	return __meta_check_d_entry(dentry->d_inode, name, len);
++}
++
++int __meta_check_d_entry(inode_t *inode, const char *name, int len)
++{
++	struct list_head *tmp;
++        struct deleted_entry *del_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	if(!inode || !itopd(inode))
++		printk(KERN_CRIT "mini_fo: __meta_check_d_dentry: \
++                                  invalid inode passed.\n");
++
++        inode_info = itopd(inode);
++
++        if(inode_info->deleted_list_size <= 0)
++                return 0;
++
++        list_for_each(tmp, &inode_info->deleted_list) {
++		del_entry = list_entry(tmp, struct deleted_entry, list);
++		if(del_entry->len != len)
++			continue;
++
++		if(!strncmp(del_entry->name, name, len))
++			return 1;
++	}
++	return 0;
++}
++
++/*
++ * check if file has been renamed and return path to orig. base dir.
++ * Implements no error return values so far, what of course sucks.
++ * String is null terminated.'
++ */
++char* meta_check_r_entry(dentry_t *dentry, const char *name, int len)
++{
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT "mini_fo: meta_check_r_dentry: \
++                                  invalid dentry passed.\n");
++		return NULL;
++	}
++	return __meta_check_r_entry(dentry->d_inode, name, len);
++}
++
++char* __meta_check_r_entry(inode_t *inode, const char *name, int len)
++{
++	struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++	char *old_path;
++
++	if(!inode || !itopd(inode)) {
++		printk(KERN_CRIT "mini_fo: meta_check_r_dentry: \
++                                  invalid inode passed.\n");
++		return NULL;
++	}
++	inode_info = itopd(inode);
++
++        if(inode_info->renamed_list_size <= 0)
++                return NULL;
++
++        list_for_each(tmp, &inode_info->renamed_list) {
++		ren_entry = list_entry(tmp, struct renamed_entry, list);
++		if(ren_entry->new_len != len)
++			continue;
++
++		if(!strncmp(ren_entry->new_name, name, len)) {
++			old_path = (char *)
++				kmalloc(ren_entry->old_len+1, GFP_KERNEL);
++			strncpy(old_path,
++				ren_entry->old_name,
++				ren_entry->old_len);
++			old_path[ren_entry->old_len]='\0';
++			return old_path;
++		}
++	}
++	return NULL;
++}
++
++/*
++ * This version only checks if entry exists and return:
++ *     1 if exists,
++ *     0 if not,
++ *    -1 if error.
++ */
++int meta_is_r_entry(dentry_t *dentry, const char *name, int len)
++{
++	if(!dentry || !dentry->d_inode) {
++		printk(KERN_CRIT "mini_fo: meta_check_r_dentry [2]: \
++                                  invalid dentry passed.\n");
++		return -1;
++	}
++	return __meta_is_r_entry(dentry->d_inode, name, len);
++}
++
++int __meta_is_r_entry(inode_t *inode, const char *name, int len)
++{
++	struct list_head *tmp;
++        struct renamed_entry *ren_entry;
++        struct mini_fo_inode_info *inode_info;
++
++	if(!inode || !itopd(inode)) {
++		printk(KERN_CRIT "mini_fo: meta_check_r_dentry [2]: \
++                                  invalid inode passed.\n");
++		return -1;
++	}
++	inode_info = itopd(inode);
++
++        if(inode_info->renamed_list_size <= 0)
++                return -1;
++
++        list_for_each(tmp, &inode_info->renamed_list) {
++		ren_entry = list_entry(tmp, struct renamed_entry, list);
++		if(ren_entry->new_len != len)
++			continue;
++
++		if(!strncmp(ren_entry->new_name, name, len))
++			return 1;
++	}
++	return 0;
++}
++
+--- /dev/null
++++ b/fs/mini_fo/mini_fo.h
+@@ -0,0 +1,510 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifndef __MINI_FO_H_
++#define __MINI_FO_H_
++
++#ifdef __KERNEL__
++
++/* META stuff */
++#define META_FILENAME "META_dAfFgHE39ktF3HD2sr"
++
++/* use xattrs? */
++#define XATTR
++
++/* File attributes that when changed, result in a file beeing copied to storage */
++#define COPY_FLAGS ATTR_MODE | ATTR_UID | ATTR_GID | ATTR_SIZE
++
++/*
++ * mini_fo filestates
++ */
++#define MODIFIED       1
++#define UNMODIFIED     2
++#define CREATED        3
++#define DEL_REWRITTEN  4
++#define DELETED        5
++#define NON_EXISTANT   6
++
++/* fist file systems superblock magic */
++# define MINI_FO_SUPER_MAGIC 0xf15f
++
++/*
++ * STRUCTURES:
++ */
++
++/* mini_fo inode data in memory */
++struct mini_fo_inode_info {
++	inode_t *wii_inode;
++	inode_t *wii_inode2; /* pointer to storage inode */
++
++	/* META-data lists */
++	/* deleted list, ex wol */
++	struct list_head deleted_list;
++	int deleted_list_size;
++
++	/* renamed list */
++	struct list_head renamed_list;
++	int renamed_list_size;
++
++	/* add other lists here ... */
++};
++
++/* mini_fo dentry data in memory */
++struct mini_fo_dentry_info {
++	dentry_t *wdi_dentry;
++	dentry_t *wdi_dentry2; /* pointer to  storage dentry */
++	unsigned int state;  /* state of the mini_fo dentry */
++};
++
++
++/* mini_fo super-block data in memory */
++struct mini_fo_sb_info {
++	super_block_t *wsi_sb, *wsi_sb2; /* mk: might point to the same sb */
++	struct vfsmount *hidden_mnt, *hidden_mnt2;
++	dentry_t *base_dir_dentry;
++	dentry_t *storage_dir_dentry;
++	;
++};
++
++/* readdir_data, readdir helper struct */
++struct readdir_data {
++	struct list_head ndl_list; /* linked list head ptr */
++	int ndl_size; /* list size */
++	int sto_done; /* flag to show that the storage dir entries have
++		       * all been read an now follow base entries */
++};
++
++/* file private data. */
++struct mini_fo_file_info {
++	struct file *wfi_file;
++	struct file *wfi_file2; /* pointer to storage file */
++	struct readdir_data rd;
++};
++
++/* struct ndl_entry */
++struct ndl_entry {
++	struct list_head list;
++	char *name;
++	int len;
++};
++
++/********************************
++ *  META-data structures
++ ********************************/
++
++/* deleted entry */
++struct deleted_entry {
++	struct list_head list;
++	char *name;
++	int len;
++};
++
++/* renamed entry */
++struct renamed_entry {
++	struct list_head list;
++	char *old_name;     /* old directory with full path */
++	int old_len;        /* length of above string */
++	char *new_name;     /* new directory name */
++	int new_len;        /* length of above string */
++};
++
++/* attr_change entry */
++struct attr_change_entry {
++	struct list_head list;
++	char *name;
++	int len;
++};
++
++/* link entry */
++struct link_entry {
++	struct list_head list;
++	int links_moved;
++	int inum_base;
++	int inum_sto;
++	char *weird_name;
++	int weird_name_len;
++};
++
++
++/* Some other stuff required for mini_fo_filldir64, copied from
++ * fs/readdir.c
++ */
++
++#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
++#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
++
++
++struct linux_dirent64 {
++        u64             d_ino;
++        s64             d_off;
++        unsigned short  d_reclen;
++        unsigned char   d_type;
++        char            d_name[0];
++};
++
++
++struct getdents_callback64 {
++        struct linux_dirent64 * current_dir;
++        struct linux_dirent64 * previous;
++        int count;
++        int error;
++};
++
++struct linux_dirent {
++	unsigned long   d_ino;
++	unsigned long   d_off;
++	unsigned short  d_reclen;
++	char            d_name[1];
++};
++
++struct getdents_callback {
++	struct linux_dirent * current_dir;
++	struct linux_dirent * previous;
++	int count;
++	int error;
++};
++
++
++/*
++ * MACROS:
++ */
++
++/* file TO private_data */
++# define ftopd(file) ((struct mini_fo_file_info *)((file)->private_data))
++# define __ftopd(file) ((file)->private_data)
++/* file TO hidden_file */
++# define ftohf(file) ((ftopd(file))->wfi_file)
++# define ftohf2(file) ((ftopd(file))->wfi_file2)
++
++/* inode TO private_data */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++# define itopd(ino) ((struct mini_fo_inode_info *)(ino)->i_private)
++# define __itopd(ino) ((ino)->i_private)
++#else
++# define itopd(ino) ((struct mini_fo_inode_info *)(ino)->u.generic_ip)
++# define __itopd(ino) ((ino)->u.generic_ip)
++#endif
++/* inode TO hidden_inode */
++# define itohi(ino) (itopd(ino)->wii_inode)
++# define itohi2(ino) (itopd(ino)->wii_inode2)
++
++/* superblock TO private_data */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++# define stopd(super) ((struct mini_fo_sb_info *)(super)->s_fs_info)
++# define __stopd(super) ((super)->s_fs_info)
++#else
++# define stopd(super) ((struct mini_fo_sb_info *)(super)->u.generic_sbp)
++# define __stopd(super) ((super)->u.generic_sbp)
++#endif
++
++/* unused? # define vfs2priv stopd */
++/* superblock TO hidden_superblock */
++
++# define stohs(super) (stopd(super)->wsi_sb)
++# define stohs2(super) (stopd(super)->wsi_sb2)
++
++/* dentry TO private_data */
++# define dtopd(dentry) ((struct mini_fo_dentry_info *)(dentry)->d_fsdata)
++# define __dtopd(dentry) ((dentry)->d_fsdata)
++/* dentry TO hidden_dentry */
++# define dtohd(dent) (dtopd(dent)->wdi_dentry)
++# define dtohd2(dent) (dtopd(dent)->wdi_dentry2)
++
++/* dentry to state */
++# define dtost(dent) (dtopd(dent)->state)
++# define sbt(sb) ((sb)->s_type->name)
++
++#define IS_WRITE_FLAG(flag) (flag & (O_RDWR | O_WRONLY | O_APPEND))
++#define IS_COPY_FLAG(flag) (flag & (COPY_FLAGS))
++
++/* macros to simplify non-SCA code */
++#  define MALLOC_PAGE_POINTERS(hidden_pages, num_hidden_pages)
++#  define MALLOC_PAGEDATA_POINTERS(hidden_pages_data, num_hidden_pages)
++#  define FREE_PAGE_POINTERS(hidden_pages, num)
++#  define FREE_PAGEDATA_POINTERS(hidden_pages_data, num)
++#  define FOR_EACH_PAGE
++#  define CURRENT_HIDDEN_PAGE hidden_page
++#  define CURRENT_HIDDEN_PAGEDATA hidden_page_data
++#  define CURRENT_HIDDEN_PAGEINDEX page->index
++
++/*
++ * EXTERNALS:
++ */
++extern struct file_operations mini_fo_main_fops;
++extern struct file_operations mini_fo_dir_fops;
++extern struct inode_operations mini_fo_main_iops;
++extern struct inode_operations mini_fo_dir_iops;
++extern struct inode_operations mini_fo_symlink_iops;
++extern struct super_operations mini_fo_sops;
++extern struct dentry_operations mini_fo_dops;
++extern struct vm_operations_struct mini_fo_shared_vmops;
++extern struct vm_operations_struct mini_fo_private_vmops;
++extern struct address_space_operations mini_fo_aops;
++
++#if 0 /* unused by mini_fo */
++extern int mini_fo_interpose(dentry_t *hidden_dentry, dentry_t *this_dentry, super_block_t *sb, int flag);
++#if defined(FIST_FILTER_DATA) || defined(FIST_FILTER_SCA)
++extern page_t *mini_fo_get1page(file_t *file, int index);
++extern int mini_fo_fill_zeros(file_t *file, page_t *page, unsigned from);
++# endif /* FIST_FILTER_DATA || FIST_FILTER_SCA */
++
++
++#  define mini_fo_hidden_dentry(d) __mini_fo_hidden_dentry(__FILE__,__FUNCTION__,__LINE__,(d))
++#  define mini_fo_hidden_sto_dentry(d) __mini_fo_hidden_sto_dentry(__FILE__,__FUNCTION__,__LINE__,(d))
++
++extern dentry_t *__mini_fo_hidden_dentry(char *file, char *func, int line, dentry_t *this_dentry);
++extern dentry_t *__mini_fo_hidden_sto_dentry(char *file, char *func, int line, dentry_t *this_dentry);
++
++extern int mini_fo_read_file(const char *filename, void *buf, int len);
++extern int mini_fo_write_file(const char *filename, void *buf, int len);
++extern dentry_t *fist_lookup(dentry_t *dir, const char *name, vnode_t **out, uid_t uid, gid_t gid);
++#endif /* unused by mini_fo */
++
++/* state transition functions */
++extern int nondir_unmod_to_mod(dentry_t *dentry, int cp_flag);
++extern int nondir_del_rew_to_del(dentry_t *dentry);
++extern int nondir_creat_to_del(dentry_t *dentry);
++extern int nondir_mod_to_del(dentry_t *dentry);
++extern int nondir_unmod_to_del(dentry_t *dentry);
++
++extern int dir_unmod_to_mod(dentry_t *dentry);
++
++/* rename specials */
++extern int rename_directory(inode_t *old_dir, dentry_t *old_dentry, inode_t *new_dir, dentry_t *new_dentry);
++extern int rename_nondir(inode_t *old_dir, dentry_t *old_dentry, inode_t *new_dir, dentry_t *new_dentry);
++
++/* misc stuff */
++extern int mini_fo_tri_interpose(dentry_t *hidden_dentry,
++				 dentry_t *hidden_sto_dentry,
++				 dentry_t *dentry,
++				 super_block_t *sb, int flag);
++
++extern int mini_fo_cp_cont(dentry_t *tgt_dentry, struct vfsmount *tgt_mnt,
++			   dentry_t *src_dentry, struct vfsmount *src_mnt);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++extern int mini_fo_create(inode_t *dir, dentry_t *dentry, int mode, struct nameidata *nd);
++
++extern int create_sto_nod(dentry_t *dentry, int mode, dev_t dev);
++extern int create_sto_reg_file(dentry_t *dentry, int mode, struct nameidata *nd);
++#else
++extern int mini_fo_create(inode_t *dir, dentry_t *dentry, int mode);
++
++extern int create_sto_nod(dentry_t *dentry, int mode, int dev);
++extern int create_sto_reg_file(dentry_t *dentry, int mode);
++#endif
++
++extern int create_sto_dir(dentry_t *dentry, int mode);
++
++extern int exists_in_storage(dentry_t *dentry);
++extern int is_mini_fo_existant(dentry_t *dentry);
++extern int get_neg_sto_dentry(dentry_t *dentry);
++extern int build_sto_structure(dentry_t *dir, dentry_t *dentry);
++extern int get_mini_fo_bpath(dentry_t *dentry, char **bpath, int *bpath_len);
++extern dentry_t *bpath_walk(super_block_t *sb, char *bpath);
++extern int bpath_put(dentry_t *dentry);
++
++/* check_mini_fo types functions */
++extern int check_mini_fo_dentry(dentry_t *dentry);
++extern int check_mini_fo_file(file_t *file);
++extern int check_mini_fo_inode(inode_t *inode);
++
++/* General meta functions, can be called from outside of meta.c */
++extern int meta_build_lists(dentry_t *dentry);
++extern int meta_put_lists(dentry_t *dentry);
++extern int __meta_put_lists(inode_t *inode);
++
++extern int meta_add_d_entry(dentry_t *dentry, const char *name, int len);
++extern int meta_add_r_entry(dentry_t *dentry,
++			    const char *old_name, int old_len,
++			    const char *new_name, int new_len);
++
++extern int meta_remove_r_entry(dentry_t *dentry, const char *name, int len);
++
++extern int meta_check_d_entry(dentry_t *dentry, const char *name, int len);
++extern int __meta_check_d_entry(inode_t *inode, const char *name, int len);
++
++extern char* meta_check_r_entry(dentry_t *dentry, const char *name, int len);
++extern char* __meta_check_r_entry(inode_t *inode, const char *name, int len);
++extern int meta_is_r_entry(dentry_t *dentry, const char *name, int len);
++extern int __meta_is_r_entry(inode_t *inode, const char *name, int len);
++
++/* Specific meta functions, should be called only inside meta.c */
++extern int __meta_put_d_list(inode_t *inode);
++extern int __meta_put_r_list(inode_t *inode);
++
++extern int meta_list_add_d_entry(dentry_t *dentry,
++				 const char *name, int len);
++extern int meta_list_add_r_entry(dentry_t *dentry,
++				 const char *old_name, int old_len,
++				 const char *new_name, int new_len);
++
++extern int meta_list_remove_r_entry(dentry_t *dentry,
++				    const char *name, int len);
++
++extern int __meta_list_remove_r_entry(inode_t *inode,
++				      const char *name, int len);
++
++extern int meta_write_d_entry(dentry_t *dentry, const char *name, int len);
++extern int meta_write_r_entry(dentry_t *dentry,
++			      const char *old_name, int old_len,
++			      const char *new_name, int new_len);
++
++extern int meta_sync_lists(dentry_t *dentry);
++extern int meta_sync_d_list(dentry_t *dentry, int app_flag);
++extern int meta_sync_r_list(dentry_t *dentry, int app_flag);
++
++/* ndl stuff */
++extern int ndl_add_entry(struct readdir_data *rd, const char *name, int len);
++extern void ndl_put_list(struct readdir_data *rd);
++extern int ndl_check_entry(struct readdir_data *rd,
++			   const char *name, int len);
++
++
++# define copy_inode_size(dst, src) \
++    dst->i_size = src->i_size; \
++    dst->i_blocks = src->i_blocks;
++
++static inline void
++fist_copy_attr_atime(inode_t *dest, const inode_t *src)
++{
++	ASSERT(dest != NULL);
++	ASSERT(src != NULL);
++	dest->i_atime = src->i_atime;
++}
++static inline void
++fist_copy_attr_times(inode_t *dest, const inode_t *src)
++{
++	ASSERT(dest != NULL);
++	ASSERT(src != NULL);
++	dest->i_atime = src->i_atime;
++	dest->i_mtime = src->i_mtime;
++	dest->i_ctime = src->i_ctime;
++}
++static inline void
++fist_copy_attr_timesizes(inode_t *dest, const inode_t *src)
++{
++	ASSERT(dest != NULL);
++	ASSERT(src != NULL);
++	dest->i_atime = src->i_atime;
++	dest->i_mtime = src->i_mtime;
++	dest->i_ctime = src->i_ctime;
++	copy_inode_size(dest, src);
++}
++static inline void
++fist_copy_attr_all(inode_t *dest, const inode_t *src)
++{
++	ASSERT(dest != NULL);
++	ASSERT(src != NULL);
++	dest->i_mode = src->i_mode;
++	dest->i_nlink = src->i_nlink;
++	dest->i_uid = src->i_uid;
++	dest->i_gid = src->i_gid;
++	dest->i_rdev = src->i_rdev;
++	dest->i_atime = src->i_atime;
++	dest->i_mtime = src->i_mtime;
++	dest->i_ctime = src->i_ctime;
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
++	dest->i_blksize = src->i_blksize;
++#endif
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,12)
++	dest->i_blkbits = src->i_blkbits;
++# endif /* linux 2.4.12 and newer */
++	copy_inode_size(dest, src);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
++	dest->i_attr_flags = src->i_attr_flags;
++#else
++	dest->i_flags = src->i_flags;
++#endif
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++/* copied from linux/fs.h */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++static inline void double_lock(struct dentry *d1, struct dentry *d2)
++{
++	struct mutex *m1 = &d1->d_inode->i_mutex;
++	struct mutex *m2 = &d2->d_inode->i_mutex;
++	if (m1 != m2) {
++		if ((unsigned long) m1 < (unsigned long) m2) {
++			struct mutex *tmp = m2;
++			m2 = m1; m1 = tmp;
++		}
++		mutex_lock(m1);
++	}
++	mutex_lock(m2);
++}
++
++static inline void double_unlock(struct dentry *d1, struct dentry *d2)
++{
++	struct mutex *m1 = &d1->d_inode->i_mutex;
++	struct mutex *m2 = &d2->d_inode->i_mutex;
++	mutex_unlock(m1);
++	if (m1 != m2)
++		mutex_unlock(m2);
++	dput(d1);
++	dput(d2);
++}
++
++#else
++static inline void double_down(struct semaphore *s1, struct semaphore *s2)
++{
++        if (s1 != s2) {
++                if ((unsigned long) s1 < (unsigned long) s2) {
++                        struct semaphore *tmp = s2;
++                        s2 = s1; s1 = tmp;
++                }
++                down(s1);
++        }
++        down(s2);
++}
++
++static inline void double_up(struct semaphore *s1, struct semaphore *s2)
++{
++        up(s1);
++        if (s1 != s2)
++                up(s2);
++}
++
++static inline void double_lock(struct dentry *d1, struct dentry *d2)
++{
++        double_down(&d1->d_inode->i_sem, &d2->d_inode->i_sem);
++}
++
++static inline void double_unlock(struct dentry *d1, struct dentry *d2)
++{
++        double_up(&d1->d_inode->i_sem,&d2->d_inode->i_sem);
++        dput(d1);
++        dput(d2);
++}
++#endif   /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) */
++#endif  /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) */
++#endif /* __KERNEL__ */
++
++/*
++ * Definitions for user and kernel code
++ */
++
++/* ioctls */
++
++#endif	/* not __MINI_FO_H_ */
+--- /dev/null
++++ b/fs/mini_fo/mini_fo-merge
+@@ -0,0 +1,180 @@
++#!/bin/bash
++#
++# Copyright (C) 2005 Markus Klotzbuecher <mk@creamnet.de>
++# This program is free software; you can redistribute it and/or
++# modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation; either version
++# 2 of the License, or (at your option) any later version.
++#
++
++BASE=
++STO=
++HELP=
++DRYRUN=
++VERBOSE=
++TMP="/tmp/"
++META_NAME="META_dAfFgHE39ktF3HD2sr"
++SKIP_DEL_LIST="skip-delete-list.mini_fo-merge"
++
++COMMAND=
++exec_command()
++{
++    if [ x$DRYRUN == "xset" ]; then
++	echo "  would run: $COMMAND"
++    elif ! [ x$DRYRUN == "xset" ]; then
++	if [ x$VERBOSE == "xset" ]; then
++	    echo "  running: $COMMAND"
++	fi
++	eval $COMMAND
++    fi
++}
++
++usage()
++{
++cat <<EOF
++
++USAGE: $0 -b <base dir> -s <storage dir>
++Version 0.1
++
++This script merges the contents of a mini_fo storage file system back
++to the base file system.
++
++!!! Warning: This will modify the base filesystem and can destroy data
++             if used wrongly.
++
++Options:
++     -b <base dir>
++          the directory of the base file system.
++
++     -s <storage dir>
++          the directory of the storage file system.
++
++     -d   dry run, will not change anything and print the commands that
++          would be executed.
++
++     -t   tmp dir for storing temporary file. default: $TMP
++
++     -v   show what operations are performed.
++
++     -h   displays this message.
++
++EOF
++}
++
++# parse parameters
++while getopts hdvt:b:s: OPTS
++  do
++  case $OPTS in
++      h)  HELP="set";;
++      d)  DRYRUN="set";;
++      v)  VERBOSE="set";;
++      b)  BASE="$OPTARG";;
++      s)  STO="$OPTARG";;
++      t)  TMP="$OPTARG";;
++      ?)  usage
++	  exit 1;;
++  esac
++done
++
++if [ "x$HELP" == "xset" ]; then
++    usage
++    exit -1
++fi
++
++if ! [ -d "$BASE" ] || ! [ -d "$STO" ]; then
++    echo -e "$0:\n Error, -s and/or -b argument missing. type $0 -h for help."
++    exit -1;
++fi
++
++# get full paths
++pushd $STO; STO=`pwd`; popd
++pushd $BASE; BASE=`pwd`; popd
++TMP=${TMP%/}
++
++
++cat<<EOF
++###############################################################################
++# mini_fo-merge
++#
++# base dir:       $BASE
++# storage dir:    $STO
++# meta filename:  $META_NAME
++# dry run:        $DRYRUN
++# verbose:        $VERBOSE
++# tmp files:      $TMP
++###############################################################################
++
++EOF
++
++rm $TMP/$SKIP_DEL_LIST
++
++# first process all renamed dirs
++echo "Merging renamed directories..."
++pushd $STO &> /dev/null
++find . -name $META_NAME -type f -print0  | xargs -0 -e grep  -e '^R ' | tr -s ':R' ' ' | while read ENTRY; do
++    echo "entry: $ENTRY"
++    META_FILE=`echo $ENTRY | cut -d ' ' -f 1`
++    OLD_B_DIR=`echo $ENTRY | cut -d ' ' -f 2 | sed -e 's/\///'`
++    NEW_NAME=`echo $ENTRY | cut -d ' ' -f 3`
++    NEW_B_DIR=`echo $META_FILE | sed -e "s/$META_NAME/$NEW_NAME/" | sed -e 's/^\.\///'`
++    echo "META_FILE: $META_FILE"
++    echo "OLD_B_DIR: $OLD_B_DIR"
++    echo "NEW_NAME: $NEW_NAME"
++    echo  "NEW_B_DIR: $NEW_B_DIR"
++
++    pushd $BASE &> /dev/null
++    # remove an existing dir in storage
++    COMMAND="rm -rf $NEW_B_DIR"; exec_command
++    COMMAND="cp -R $OLD_B_DIR $NEW_B_DIR"; exec_command
++    echo ""
++    popd &> /dev/null
++
++    # remember this dir to exclude it from deleting later
++    echo $NEW_B_DIR >> $TMP/$SKIP_DEL_LIST
++done
++
++# delete all whiteouted files from base
++echo -e "\nDeleting whiteout'ed files from base file system..."
++find . -name $META_NAME -type f -print0  | xargs -0 -e grep  -e '^D ' | sed -e 's/:D//' | while read ENTRY; do
++    META_FILE=`echo $ENTRY | cut -d ' ' -f 1`
++    DEL_NAME=`echo $ENTRY | cut -d ' ' -f 2`
++    DEL_FILE=`echo $META_FILE | sed -e "s/$META_NAME/$DEL_NAME/" | sed -e 's/^\.\///'`
++    grep -x $DEL_FILE $TMP/$SKIP_DEL_LIST &> /dev/null
++    if [ $? -ne 0 ]; then
++	pushd $BASE &> /dev/null
++	COMMAND="rm -rf $DEL_FILE"; exec_command
++	popd &> /dev/null
++    else
++	echo "  excluding: $DEL_FILE as in skip-del-list."
++    fi
++done
++
++# create all dirs and update permissions
++echo -e "\nSetting up directory structures in base file system..."
++find . -type d | sed -e 's/^\.\///' | while read DIR; do
++    PERMS=`stat -c %a $DIR`
++    DIR_UID=`stat -c %u $DIR`
++    DIR_GID=`stat -c %g $DIR`
++    pushd $BASE &> /dev/null
++    if ! [ -d $DIR ]; then
++	COMMAND="mkdir -p $DIR"; exec_command
++    fi
++    COMMAND="chmod $PERMS $DIR"; exec_command
++    COMMAND="chown $DIR_UID:$DIR_GID $DIR"; exec_command
++    popd &> /dev/null
++done
++
++# merge all non-directory files
++echo -e "\nMerging all non-directory files...."
++for i in b c p f l s; do
++    find . -type $i | sed -e 's/^\.\///' | grep -v "$META_NAME" | while read FILE; do
++	pushd $BASE #&> /dev/null
++	COMMAND="cp -df $STO/$FILE $BASE/$FILE"; exec_command
++	popd &> /dev/null
++    done
++done
++popd &> /dev/null
++
++#rm $TMP/$SKIP_DEL_LIST
++
++echo "Done!"
+--- /dev/null
++++ b/fs/mini_fo/mini_fo-overlay
+@@ -0,0 +1,130 @@
++#!/bin/bash
++#
++# Copyright (C) 2005 Markus Klotzbuecher <mk@creamnet.de>
++# This program is free software; you can redistribute it and/or
++# modify it under the terms of the GNU General Public License
++# as published by the Free Software Foundation; either version
++# 2 of the License, or (at your option) any later version.
++#
++
++HELP=
++SUFF=
++MNTP=
++MNT_DIR="/mnt"
++STO=
++STO_DIR="/tmp"
++BASE=
++
++usage()
++{
++cat <<EOF
++
++Usage: $0 [-s suffix] [-d sto_dir_dir] [-m mount point] base_dir
++Version 0.1
++
++This script overlays the given base directory using the mini_fo file
++system. If only the base directory base_dir is given, $0
++will use a storage directory called "sto-<base_dir_name>" in $STO_DIR,
++and mount point "mini_fo-<base_dir_dir>" in $MNT_DIR.
++
++Options:
++     -s <suffix>
++          add given suffix to storage directory and the mount
++          point. This is usefull for overlaying one base directory
++          several times and avoiding conflicts with storage directory
++          names and mount points.
++
++     -d <sto_dir_dir>
++          change the directory in which the storage directory will be
++          created (default is currently "$STO_DIR".
++
++     -m <mount point>
++          use an alternative directory to create the mini_fo
++          mountpoint (default is currently "$MNT_DIR".
++
++     -h   displays this message.
++
++EOF
++exit 1;
++}
++
++while getopts hm:s:d: OPTS
++  do
++  case $OPTS in
++      s)  SUFF="$OPTARG";;
++      d)  STO_DIR="$OPTARG";;
++      m)  MNT_DIR="$OPTARG";;
++      h)  HELP="set";;
++      ?)  usage
++	  exit 1;;
++  esac
++done
++shift $(($OPTIND - 1))
++
++BASE="$1"
++
++if [ "x$HELP" == "xset" ]; then
++    usage
++    exit -1
++fi
++
++# fix suffix
++if [ "x$SUFF" != "x" ]; then
++    SUFF="-$SUFF"
++fi
++
++# kill trailing slashes
++MNT_DIR=${MNT_DIR%/}
++STO_DIR=${STO_DIR%/}
++BASE=${BASE%/}
++
++
++if ! [ -d "$BASE" ]; then
++    echo "invalid base dir $BASE, run $0 -h for help."
++    exit -1
++fi
++
++# check opts
++if ! [ -d "$MNT_DIR" ]; then
++    echo "invalid mount dir $MNT_DIR, run $0 -h for help."
++    exit -1
++fi
++
++if ! [ -d "$STO_DIR" ]; then
++    echo "invalid sto_dir_dir $STO_DIR, run $0 -h for help."
++    exit -1
++fi
++
++MNTP="$MNT_DIR/mini_fo-`basename $BASE`$SUFF"
++STO="$STO_DIR/sto-`basename $BASE`$SUFF"
++
++# create the mount point if it doesn't exist
++mkdir -p $MNTP
++if [ $? -ne 0 ]; then
++    echo "Error, failed to create mount point $MNTP"
++fi
++
++mkdir -p $STO
++if [ $? -ne 0 ]; then
++    echo "Error, failed to create storage dir $STO"
++fi
++
++# check if fs is already mounted
++mount | grep mini_fo | grep $MNTP &> /dev/null
++if [ $? -eq 0 ]; then
++    echo "Error, existing mini_fo mount at $MNTP."
++    exit -1
++fi
++
++mount | grep mini_fo | grep $STO &> /dev/null
++if [ $? -eq 0 ]; then
++    echo "Error, $STO seems to be used already."
++    exit -1
++fi
++
++# mount
++mount -t mini_fo -o base=$BASE,sto=$STO $BASE $MNTP
++
++if [ $? -ne 0 ]; then
++    echo "Error, mounting failed, maybe no permisson to mount?"
++fi
+--- /dev/null
++++ b/fs/mini_fo/mmap.c
+@@ -0,0 +1,637 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif /* HAVE_CONFIG_H */
++
++#include "fist.h"
++#include "mini_fo.h"
++
++
++#ifdef FIST_COUNT_WRITES
++/* for counting writes in the middle vs. regular writes */
++unsigned long count_writes = 0, count_writes_middle = 0;
++#endif /* FIST_COUNT_WRITES */
++
++/* forward declaration of commit write and prepare write */
++STATIC int mini_fo_commit_write(file_t *file, page_t *page, unsigned from, unsigned to);
++STATIC int mini_fo_prepare_write(file_t *file, page_t *page, unsigned from, unsigned to);
++
++
++/*
++ * Function for handling creation of holes when lseek-ing past the
++ * end of the file and then writing some data.
++ */
++int
++mini_fo_fill_zeros(file_t* file, page_t *page, unsigned from)
++{
++	int err = 0;
++	dentry_t *dentry = file->f_dentry;
++	inode_t *inode = dentry->d_inode;
++	page_t *tmp_page;
++	int index;
++
++	print_entry_location();
++
++	for (index = inode->i_size >> PAGE_CACHE_SHIFT; index < page->index; index++) {
++		tmp_page = mini_fo_get1page(file, index);
++		if (IS_ERR(tmp_page)) {
++			err = PTR_ERR(tmp_page);
++			goto out;
++		}
++
++		/*
++		 * zero out rest of the contents of the page between the appropriate
++		 * offsets.
++		 */
++		memset((char*)page_address(tmp_page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, PAGE_CACHE_SIZE - (inode->i_size & ~PAGE_CACHE_MASK));
++
++		if (! (err = mini_fo_prepare_write(file, tmp_page, 0, PAGE_CACHE_SIZE)))
++			err = mini_fo_commit_write(file, tmp_page, 0, PAGE_CACHE_SIZE);
++
++		page_cache_release(tmp_page);
++		if (err < 0)
++			goto out;
++		if (current->need_resched)
++			schedule();
++	}
++
++	/* zero out appropriate parts of last page */
++
++	/*
++	 * if the encoding type is block, then adjust the 'from' (where the
++	 * zeroing will start) offset appropriately
++	 */
++	from = from & (~(FIST_ENCODING_BLOCKSIZE - 1));
++
++	if ((from - (inode->i_size & ~PAGE_CACHE_MASK)) > 0) {
++
++		memset((char*)page_address(page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, from - (inode->i_size & ~PAGE_CACHE_MASK));
++		if (! (err = mini_fo_prepare_write(file, page, 0, PAGE_CACHE_SIZE)))
++			err = mini_fo_commit_write(file, page, 0, PAGE_CACHE_SIZE);
++
++		if (err < 0)
++			goto out;
++		if (current->need_resched)
++			schedule();
++	}
++
++ out:
++	print_exit_status(err);
++	return err;
++}
++
++
++
++STATIC int
++mini_fo_writepage(page_t *page)
++{
++	int err = -EIO;
++	inode_t *inode;
++	inode_t *hidden_inode;
++	page_t *hidden_page;
++	char *kaddr, *hidden_kaddr;
++
++	print_entry_location();
++
++	inode = page->mapping->host;
++	hidden_inode = itohi(inode);
++
++	/*
++	 * writepage is called when shared mmap'ed files need to write
++	 * their pages, while prepare/commit_write are called from the
++	 * non-paged write() interface.  (However, in 2.3 the two interfaces
++	 * share the same cache, while in 2.2 they didn't.)
++	 *
++	 * So we pretty much have to duplicate much of what commit_write does.
++	 */
++
++	/* find lower page (returns a locked page) */
++	hidden_page = grab_cache_page(hidden_inode->i_mapping, page->index);
++	if (!hidden_page)
++		goto out;
++
++	/* get page address, and encode it */
++	kaddr = (char *) kmap(page);
++	hidden_kaddr = (char*) kmap(hidden_page);
++	mini_fo_encode_block(kaddr, hidden_kaddr, PAGE_CACHE_SIZE, inode, inode->i_sb, page->index);
++	/* if encode_block could fail, then return error */
++	kunmap(page);
++	kunmap(hidden_page);
++
++	/* call lower writepage (expects locked page) */
++	err = hidden_inode->i_mapping->a_ops->writepage(hidden_page);
++
++	/*
++	 * update mtime and ctime of lower level file system
++	 * mini_fo' mtime and ctime are updated by generic_file_write
++	 */
++	hidden_inode->i_mtime = hidden_inode->i_ctime = CURRENT_TIME;
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,1)
++	UnlockPage(hidden_page);	/* b/c grab_cache_page locked it */
++# endif /* kernel older than 2.4.1 */
++	page_cache_release(hidden_page); /* b/c grab_cache_page increased refcnt */
++
++	if (err)
++		ClearPageUptodate(page);
++	else
++		SetPageUptodate(page);
++ out:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,1)
++	UnlockPage(page);
++# endif /* kernel 2.4.1 and newer */
++	print_exit_status(err);
++	return err;
++}
++
++
++/*
++ * get one page from cache or lower f/s, return error otherwise.
++ * returns unlocked, up-to-date page (if ok), with increased refcnt.
++ */
++page_t *
++mini_fo_get1page(file_t *file, int index)
++{
++	page_t *page;
++	dentry_t *dentry;
++	inode_t *inode;
++	struct address_space *mapping;
++	int err;
++
++	print_entry_location();
++
++	dentry = file->f_dentry; /* CPW: Moved below print_entry_location */
++	inode = dentry->d_inode;
++	mapping = inode->i_mapping;
++
++	fist_dprint(8, "%s: read page index %d pid %d\n", __FUNCTION__, index, current->pid);
++	if (index < 0) {
++		printk("%s BUG: index=%d\n", __FUNCTION__, index);
++		page = ERR_PTR(-EIO);
++		goto out;
++	}
++	page = read_cache_page(mapping,
++			       index,
++			       (filler_t *) mapping->a_ops->readpage,
++			       (void *) file);
++	if (IS_ERR(page))
++		goto out;
++	wait_on_page(page);
++	if (!Page_Uptodate(page)) {
++		lock_page(page);
++		err = mapping->a_ops->readpage(file, page);
++		if (err) {
++			page = ERR_PTR(err);
++			goto out;
++		}
++		wait_on_page(page);
++		if (!Page_Uptodate(page)) {
++			page = ERR_PTR(-EIO);
++			goto out;
++		}
++	}
++
++ out:
++	print_exit_pointer(page);
++	return page;
++}
++
++
++/*
++ * get one page from cache or lower f/s, return error otherwise.
++ * similar to get1page, but doesn't guarantee that it will return
++ * an unlocked page.
++ */
++page_t *
++mini_fo_get1page_cached(file_t *file, int index)
++{
++	page_t *page;
++	dentry_t *dentry;
++	inode_t *inode;
++	struct address_space *mapping;
++	int err;
++
++	print_entry_location();
++
++	dentry = file->f_dentry; /* CPW: Moved below print_entry_location */
++	inode = dentry->d_inode;
++	mapping = inode->i_mapping;
++
++	fist_dprint(8, "%s: read page index %d pid %d\n", __FUNCTION__, index, current->pid);
++	if (index < 0) {
++		printk("%s BUG: index=%d\n", __FUNCTION__, index);
++		page = ERR_PTR(-EIO);
++		goto out;
++	}
++	page = read_cache_page(mapping,
++			       index,
++			       (filler_t *) mapping->a_ops->readpage,
++			       (void *) file);
++	if (IS_ERR(page))
++		goto out;
++
++ out:
++	print_exit_pointer(page);
++	return page;
++}
++
++
++/*
++ * readpage is called from generic_page_read and the fault handler.
++ * If your file system uses generic_page_read for the read op, it
++ * must implement readpage.
++ *
++ * Readpage expects a locked page, and must unlock it.
++ */
++STATIC int
++mini_fo_do_readpage(file_t *file, page_t *page)
++{
++	int err = -EIO;
++	dentry_t *dentry;
++	file_t *hidden_file = NULL;
++	dentry_t *hidden_dentry;
++	inode_t *inode;
++	inode_t *hidden_inode;
++	char *page_data;
++	page_t *hidden_page;
++	char *hidden_page_data;
++	int real_size;
++
++	print_entry_location();
++
++	dentry = file->f_dentry; /* CPW: Moved below print_entry_location */
++	if (ftopd(file) != NULL)
++		hidden_file = ftohf(file);
++	hidden_dentry = dtohd(dentry);
++	inode = dentry->d_inode;
++	hidden_inode = itohi(inode);
++
++	fist_dprint(7, "%s: requesting page %d from file %s\n", __FUNCTION__, page->index, dentry->d_name.name);
++
++	MALLOC_PAGE_POINTERS(hidden_pages, num_hidden_pages);
++	MALLOC_PAGEDATA_POINTERS(hidden_pages_data, num_hidden_pages);
++	FOR_EACH_PAGE
++		CURRENT_HIDDEN_PAGE = NULL;
++
++	/* find lower page (returns a locked page) */
++	FOR_EACH_PAGE {
++		fist_dprint(8, "%s: Current page index = %d\n", __FUNCTION__, CURRENT_HIDDEN_PAGEINDEX);
++		CURRENT_HIDDEN_PAGE = read_cache_page(hidden_inode->i_mapping,
++						      CURRENT_HIDDEN_PAGEINDEX,
++						      (filler_t *) hidden_inode->i_mapping->a_ops->readpage,
++						      (void *) hidden_file);
++		if (IS_ERR(CURRENT_HIDDEN_PAGE)) {
++			err = PTR_ERR(CURRENT_HIDDEN_PAGE);
++			CURRENT_HIDDEN_PAGE = NULL;
++			goto out_release;
++		}
++	}
++
++	/*
++	 * wait for the page data to show up
++	 * (signaled by readpage as unlocking the page)
++	 */
++	FOR_EACH_PAGE {
++		wait_on_page(CURRENT_HIDDEN_PAGE);
++		if (!Page_Uptodate(CURRENT_HIDDEN_PAGE)) {
++			/*
++			 * call readpage() again if we returned from wait_on_page with a
++			 * page that's not up-to-date; that can happen when a partial
++			 * page has a few buffers which are ok, but not the whole
++			 * page.
++			 */
++			lock_page(CURRENT_HIDDEN_PAGE);
++			err = hidden_inode->i_mapping->a_ops->readpage(hidden_file,
++								       CURRENT_HIDDEN_PAGE);
++			if (err) {
++				CURRENT_HIDDEN_PAGE = NULL;
++				goto out_release;
++			}
++			wait_on_page(CURRENT_HIDDEN_PAGE);
++			if (!Page_Uptodate(CURRENT_HIDDEN_PAGE)) {
++				err = -EIO;
++				goto out_release;
++			}
++		}
++	}
++
++	/* map pages, get their addresses */
++	page_data = (char *) kmap(page);
++	FOR_EACH_PAGE
++		CURRENT_HIDDEN_PAGEDATA = (char *) kmap(CURRENT_HIDDEN_PAGE);
++
++	/* if decode_block could fail, then return error */
++	err = 0;
++	real_size = hidden_inode->i_size - (page->index << PAGE_CACHE_SHIFT);
++	if (real_size <= 0)
++		memset(page_data, 0, PAGE_CACHE_SIZE);
++	else if (real_size < PAGE_CACHE_SIZE) {
++		mini_fo_decode_block(hidden_page_data, page_data, real_size, inode, inode->i_sb, page->index);
++		memset(page_data + real_size, 0, PAGE_CACHE_SIZE - real_size);
++	} else
++		mini_fo_decode_block(hidden_page_data, page_data, PAGE_CACHE_SIZE, inode, inode->i_sb, page->index);
++
++	FOR_EACH_PAGE
++		kunmap(CURRENT_HIDDEN_PAGE);
++	kunmap(page);
++
++ out_release:
++	FOR_EACH_PAGE
++		if (CURRENT_HIDDEN_PAGE)
++			page_cache_release(CURRENT_HIDDEN_PAGE); /* undo read_cache_page */
++
++	FREE_PAGE_POINTERS(hidden_pages, num_hidden_pages);
++	FREE_PAGEDATA_POINTERS(hidden_pages_data, num_hidden_pages);
++
++ out:
++	if (err == 0)
++		SetPageUptodate(page);
++	else
++		ClearPageUptodate(page);
++
++	print_exit_status(err);
++	return err;
++}
++
++
++STATIC int
++mini_fo_readpage(file_t *file, page_t *page)
++{
++	int err;
++	print_entry_location();
++
++	err = mini_fo_do_readpage(file, page);
++
++	/*
++	 * we have to unlock our page, b/c we _might_ have gotten a locked page.
++	 * but we no longer have to wakeup on our page here, b/c UnlockPage does
++	 * it
++	 */
++	UnlockPage(page);
++
++	print_exit_status(err);
++	return err;
++}
++
++
++STATIC int
++mini_fo_prepare_write(file_t *file, page_t *page, unsigned from, unsigned to)
++{
++	int err = 0;
++
++	print_entry_location();
++
++	/*
++	 * we call kmap(page) only here, and do the kunmap
++	 * and the actual downcalls, including unlockpage and uncache
++	 * in commit_write.
++	 */
++	kmap(page);
++
++	/* fast path for whole page writes */
++	if (from == 0 && to == PAGE_CACHE_SIZE)
++		goto out;
++	/* read the page to "revalidate" our data */
++	/* call the helper function which doesn't unlock the page */
++	if (!Page_Uptodate(page))
++		err = mini_fo_do_readpage(file, page);
++
++ out:
++	print_exit_status(err);
++	return err;
++}
++
++
++
++STATIC int
++mini_fo_commit_write(file_t *file, page_t *page, unsigned from, unsigned to)
++{
++	int err = -ENOMEM;
++	inode_t *inode;
++	inode_t *hidden_inode;
++	page_t *hidden_page;
++	file_t *hidden_file = NULL;
++	loff_t pos;
++	unsigned bytes = to - from;
++	unsigned hidden_from, hidden_to, hidden_bytes;
++
++	print_entry_location();
++
++	inode = page->mapping->host; /* CPW: Moved below print_entry_location */
++	hidden_inode = itohi(inode);
++
++	ASSERT(file != NULL);
++	/*
++	 * here we have a kmapped page, with data from the user copied
++	 * into it.  we need to encode_block it, and then call the lower
++	 * commit_write.  We also need to simulate same behavior of
++	 * generic_file_write, and call prepare_write on the lower f/s first.
++	 */
++#ifdef FIST_COUNT_WRITES
++	count_writes++;
++# endif /* FIST_COUNT_WRITES */
++
++	/* this is append and/or extend -- we can't have holes so fill them in */
++	if (page->index > (hidden_inode->i_size >> PAGE_CACHE_SHIFT)) {
++		page_t *tmp_page;
++		int index;
++		for (index = hidden_inode->i_size >> PAGE_CACHE_SHIFT; index < page->index; index++) {
++			tmp_page = mini_fo_get1page(file, index);
++			if (IS_ERR(tmp_page)) {
++				err = PTR_ERR(tmp_page);
++				goto out;
++			}
++			/* zero out the contents of the page at the appropriate offsets */
++			memset((char*)page_address(tmp_page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, PAGE_CACHE_SIZE - (inode->i_size & ~PAGE_CACHE_MASK));
++			if (!(err = mini_fo_prepare_write(file, tmp_page, 0, PAGE_CACHE_SIZE)))
++				err = mini_fo_commit_write(file, tmp_page, 0, PAGE_CACHE_SIZE);
++			page_cache_release(tmp_page);
++			if (err < 0)
++				goto out;
++			if (current->need_resched)
++				schedule();
++		}
++	}
++
++	if (ftopd(file) != NULL)
++		hidden_file = ftohf(file);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_inode->i_mutex);
++#else
++	down(&hidden_inode->i_sem);
++#endif
++	/* find lower page (returns a locked page) */
++	hidden_page = grab_cache_page(hidden_inode->i_mapping, page->index);
++	if (!hidden_page)
++		goto out;
++
++#if FIST_ENCODING_BLOCKSIZE > 1
++#  error encoding_blocksize greater than 1 is not yet supported
++# endif /* FIST_ENCODING_BLOCKSIZE > 1 */
++
++	hidden_from = from & (~(FIST_ENCODING_BLOCKSIZE - 1));
++	hidden_to = ((to + FIST_ENCODING_BLOCKSIZE - 1) & (~(FIST_ENCODING_BLOCKSIZE - 1)));
++	if ((page->index << PAGE_CACHE_SHIFT) + to > hidden_inode->i_size) {
++
++		/*
++		 * if this call to commit_write had introduced holes and the code
++		 * for handling holes was invoked, then the beginning of this page
++		 * must be zeroed out
++		 * zero out bytes from 'size_of_file%pagesize' to 'from'.
++		 */
++		if ((hidden_from - (inode->i_size & ~PAGE_CACHE_MASK)) > 0)
++			memset((char*)page_address(page) + (inode->i_size & ~PAGE_CACHE_MASK), 0, hidden_from - (inode->i_size & ~PAGE_CACHE_MASK));
++
++	}
++	hidden_bytes = hidden_to - hidden_from;
++
++	/* call lower prepare_write */
++	err = -EINVAL;
++	if (hidden_inode->i_mapping &&
++	    hidden_inode->i_mapping->a_ops &&
++	    hidden_inode->i_mapping->a_ops->prepare_write)
++		err = hidden_inode->i_mapping->a_ops->prepare_write(hidden_file,
++								    hidden_page,
++								    hidden_from,
++								    hidden_to);
++	if (err)
++		/* don't leave locked pages behind, esp. on an ENOSPC */
++		goto out_unlock;
++
++	fist_dprint(8, "%s: encoding %d bytes\n", __FUNCTION__, hidden_bytes);
++	mini_fo_encode_block((char *) page_address(page) + hidden_from, (char*) page_address(hidden_page) + hidden_from, hidden_bytes, inode, inode->i_sb, page->index);
++	/* if encode_block could fail, then goto unlock and return error */
++
++	/* call lower commit_write */
++	err = hidden_inode->i_mapping->a_ops->commit_write(hidden_file,
++							   hidden_page,
++							   hidden_from,
++							   hidden_to);
++
++	if (err < 0)
++		goto out_unlock;
++
++	err = bytes;	/* convert error to no. of bytes */
++
++	inode->i_blocks = hidden_inode->i_blocks;
++	/* we may have to update i_size */
++	pos = (page->index << PAGE_CACHE_SHIFT) + to;
++	if (pos > inode->i_size)
++		inode->i_size = pos;
++
++	/*
++	 * update mtime and ctime of lower level file system
++	 * mini_fo' mtime and ctime are updated by generic_file_write
++	 */
++	hidden_inode->i_mtime = hidden_inode->i_ctime = CURRENT_TIME;
++
++	mark_inode_dirty_sync(inode);
++
++ out_unlock:
++	UnlockPage(hidden_page);
++	page_cache_release(hidden_page);
++	kunmap(page);		/* kmap was done in prepare_write */
++ out:
++	/* we must set our page as up-to-date */
++	if (err < 0)
++		ClearPageUptodate(page);
++	else
++		SetPageUptodate(page);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_inode->i_mutex);
++#else
++	up(&hidden_inode->i_sem);
++#endif
++	print_exit_status(err);
++	return err;			/* assume all is ok */
++}
++
++
++STATIC int
++mini_fo_bmap(struct address_space *mapping, long block)
++{
++	int err = 0;
++	inode_t *inode;
++	inode_t *hidden_inode;
++
++	print_entry_location();
++
++	inode = (inode_t *) mapping->host;
++	hidden_inode = itohi(inode);
++
++	if (hidden_inode->i_mapping->a_ops->bmap)
++		err = hidden_inode->i_mapping->a_ops->bmap(hidden_inode->i_mapping, block);
++	print_exit_location();
++	return err;
++}
++
++
++/*
++ * This function is copied verbatim from mm/filemap.c.
++ * XXX: It should be simply moved to some header file instead -- bug Al about it!
++ */
++static inline int sync_page(struct page *page)
++{
++	struct address_space *mapping = page->mapping;
++
++	if (mapping && mapping->a_ops && mapping->a_ops->sync_page)
++		return mapping->a_ops->sync_page(page);
++	return 0;
++}
++
++
++/*
++ * XXX: we may not need this function if not FIST_FILTER_DATA.
++ * FIXME: for FIST_FILTER_SCA, get all lower pages and sync them each.
++ */
++STATIC int
++mini_fo_sync_page(page_t *page)
++{
++	int err = 0;
++	inode_t *inode;
++	inode_t *hidden_inode;
++	page_t *hidden_page;
++
++	print_entry_location();
++
++	inode = page->mapping->host; /* CPW: Moved below print_entry_location */
++	hidden_inode = itohi(inode);
++
++	/* find lower page (returns a locked page) */
++	hidden_page = grab_cache_page(hidden_inode->i_mapping, page->index);
++	if (!hidden_page)
++		goto out;
++
++	err = sync_page(hidden_page);
++
++	UnlockPage(hidden_page);	/* b/c grab_cache_page locked it */
++	page_cache_release(hidden_page); /* b/c grab_cache_page increased refcnt */
++
++ out:
++	print_exit_status(err);
++	return err;
++}
+--- /dev/null
++++ b/fs/mini_fo/README
+@@ -0,0 +1,163 @@
++README for the mini_fo overlay file system
++=========================================
++
++
++WHAT IS MINI_FO?
++----------------
++
++mini_fo is a virtual kernel file system that can make read-only
++file systems writable. This is done by redirecting modifying operations
++to a writeable location called "storage directory", and leaving the
++original data in the "base directory" untouched. When reading, the
++file system merges the modifed and original data so that only the
++newest versions will appear. This occurs transparently to the user,
++who can access the data like on any other read-write file system.
++
++Base and storage directories may be located on the same or on
++different partitions and may be of different file system types. While
++the storage directory obviously needs to be writable, the base may or
++may not be writable, what doesn't matter as it will no be modified
++anyway.
++
++
++WHAT IS GOOD FOR?
++-----------------
++
++The primary purpose of the mini_fo file system is to allow easy
++software updates to embedded systems, that often store their root
++file system in a read-only flash file system, but there are many
++more as for example sandboxing, or for allowing live-cds to
++permanently store information.
++
++
++BUILDING
++--------
++This should be simple. Adjust the Makefile to point to the correct
++kernel headers you want to build the module for. Then:
++
++    # make
++
++should build "mini_fo.o" for a 2.4 kernel or "mini_fo.ko" for a 2.6
++kernel.
++
++If you are building the module for you current kernel, you can install
++the module (as root):
++
++    # make install
++
++or uninstall with
++
++    # make uninstall
++
++
++USING THE FILE SYSTEM
++--------------------
++
++the general mount syntax is:
++
++   mount -t mini_fo -o base=<base directory>,sto=<storage directory>\
++                            <base directory> <mount point>
++
++Example:
++
++You have mounted a cdrom to /mnt/cdrom and want to modifiy some files
++on it:
++
++load the module (as root)
++
++    # insmod mini_fo.o for a 2.4 kernel or
++
++    # insmod mini_fo.ko for a 2.6 kernel
++
++
++create a storage dir in tmp and a mountpoint for mini_fo:
++
++    # mkdir /tmp/sto
++    # mkdir /mnt/mini_fo
++
++and mount the mini_fo file system:
++
++    # mount -t mini_fo -o base=/mnt/cdrom,sto=/tmp/sto /mnt/cdrom /mnt/mini_fo
++
++
++Now the data stored on the cd can be accessed via the mini_fo
++mountpoint just like any read-write file system, files can be modified
++and deleted, new ones can be created and so on. When done unmount the
++file system:
++
++    # unmount /mnt/mini_fo
++
++Note that if the file system is mounted again using the same storage
++file system, of course it will appear in the modified state again. If
++you remount it using an new empty storage directory, it will be
++unmodified. Therefore by executing:
++
++    # cd /tmp/sto
++    # rm -rf *
++
++you can nuke all the changes you made to the original file system. But
++ remember NEVER do this while the mini_fo file system is mounted!
++
++
++Alternatively you can use the mini_fo-overlay bash script, that
++simplifies managing mini_fo mounts. See TOOLS Section.
++
++
++TOOLS
++-----
++
++mini_fo-merge (experimental):
++
++This is a bash script that will merge changes contained in the storage
++directory back to the base directory. This allows mini_fo to function
++as a cache file system by overlaying a slow (network, ...) file system
++and using a fast (ramdisk, ...) as storage. When done, changes can be
++merged back to the (slow) base with mini_fo-merge. See "mini_fo-merge
++-h" for details.
++
++It can be usefull for merging changes back after a successfull test
++(patches, software updates...)
++
++
++mini_fo-overlay:
++
++This bash script simplifies managing one or more mini_fo mounts. For
++overlaying a directory called "basedir1", you can just call:
++
++    # mini_fo-overlay basedir1
++
++This will mount mini_fo with "basedir1" as base, "/tmp/sto-basedir1/"
++as storage to "/mnt/mini_fo-basedir1/". It has more options though,
++type "mini_fo-overlay -h" for details.
++
++
++DOCUMENTATION, REPORTING BUGS, GETTING HELP
++-------------------------------------------
++
++Please visit the mini_fo project page at:
++
++http://www.denx.de/twiki/bin/view/Know/MiniFOHome
++
++
++WARNINGS
++--------
++
++Never modify the base or the storage directorys while the mini_fo
++file system is mounted, or you might crash you system. Simply accessing
++and reading should not cause any trouble.
++
++Exporting a mini_fo mount point via NFS has not been tested, and may
++or may not work.
++
++Check the RELEASE_NOTES for details on bugs and features.
++
++
++
++Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++
++This program is free software; you can redistribute it and/or
++modify it under the terms of the GNU General Public License
++as published by the Free Software Foundation; either version
++2 of the License, or (at your option) any later version.
++
++
+--- /dev/null
++++ b/fs/mini_fo/RELEASE_NOTES
+@@ -0,0 +1,111 @@
++Release:	mini_fo-0.6.1 (v0-6-1)
++Date:		21.09.2005
++
++
++Changes:
++--------
++v0-6-1:
++
++- bugfixes (see ChangeLog)
++
++- two helper scripts "mini_fo_merge" and "mini_fo_overlay" (see
++  README for details).
++
++v0-6-0:
++
++- Support for 2.4 and 2.6 (see Makefile)
++
++- Partial hard link support (creating works as expected, but already
++  existing links in the base file system will be treated as if they
++  were individual files).
++
++- Various bugfixes and cleanups.
++
++
++v0-6-0-pre1:
++
++- This is mini_fo-0-6-0-pre1! This release is a complete rewrite of
++  many vital mini_fo parts such as the old whiteout list code which
++  has been replaced by the new META subsystem.
++
++- Light weight directory renaming implemented. This means if a
++  directory is renamed via the mini_fo filesystem this will no longer
++  result in a complete copy in storage, instead only one empty
++  directory will be created. All base filed contained in the original
++  directory stay there until modified.
++
++- Special files (creating, renaming, deleting etc.) now working.
++
++- Many bugfixes and cleanup, mini_fo is now a lot more stable.
++
++
++v0-5-10:
++
++- Final release of the 0-5-* versions. Next will be a complete rewrite
++  of many features. This release contains several bugfixes related to
++  directory renaming.
++
++
++v0-5-10-pre6:
++
++- Lots of cleanup and several bugfixes related to directory deleting
++
++- Directory renaming suddenly works, what is most likely due to the
++  fact tha that "mv" is smart: if the classic rename doesn't work it
++  will assume that source and target file are on different fs and will
++  copy the directory and try to remove the source directory. Until
++  directory removing wasn't implemented, it would fail to do this and
++  rollback.
++  So, directory renaming works for now, but it doesn't yet do what you
++  would expect from a overlay fs, so use with care.
++
++
++v0-5-10-pre5:
++
++- implemented directory deleting
++- made parsing of mount options more stable
++- New format of mount options! (See README)
++- I can't reproduce the unknown panic with 2.4.25 anymore, so I'll
++  happily assume it never existed!
++
++
++Implemented features:
++---------------------
++
++- creating hard links (see BUGS on already existing hard links)
++- lightweight directory renaming
++- renaming device files, pipes, sockets, etc.
++- creating, renaming, deleting of special files
++- deleting directorys
++- general directory reading (simple "ls" )
++- creating files in existing directorys
++- creating directorys
++- renaming files.
++- reading and writing files (involves opening)
++- appending to files (creates copy in storage)
++- deleting files
++- llseek works too, what allows editors to work
++- persistency (a deleted file stay deleted over remounts)
++- use of symbolic links
++- creating of device files
++
++
++Not (yet) implemented features:
++-------------------------------
++
++- full hard link support.
++
++
++
++BUGS:
++-----
++
++Hard links in the base file system will be treated as individual
++files, not as links to one inode.
++
++The main problem with hard links isn't allowing to create them, but
++their pure existence. If you modify a base hard link, the changes made
++will only show up on this link, the other link will remain in the
++original state. I hope to fix this someday. Please note that this does
++not effect the special hard links '.' and '..', that are handled
++seperately by the lower fs.
+--- /dev/null
++++ b/fs/mini_fo/state.c
+@@ -0,0 +1,620 @@
++/*
++ * Copyright (C) 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif /* HAVE_CONFIG_H */
++
++#include "fist.h"
++#include "mini_fo.h"
++
++
++/* create the storage file, setup new states */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++int create_sto_reg_file(dentry_t *dentry, int mode, struct nameidata *nd)
++#else
++int create_sto_reg_file(dentry_t *dentry, int mode)
++#endif
++{
++	int err = 0;
++	inode_t *dir;
++	dentry_t *hidden_sto_dentry;
++	dentry_t *hidden_sto_dir_dentry;
++
++	if(exists_in_storage(dentry)) {
++		printk(KERN_CRIT "mini_fo: create_sto_file: wrong type or state.\n");
++		err = -EINVAL;
++		goto out;
++	}
++	err = get_neg_sto_dentry(dentry);
++
++	if (err) {
++		printk(KERN_CRIT "mini_fo: create_sto_file: ERROR getting neg. sto dentry.\n");
++		goto out;
++	}
++
++	dir = dentry->d_parent->d_inode;
++	hidden_sto_dentry = dtohd2(dentry);
++
++	/* lock parent */
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++        down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++	err = PTR_ERR(hidden_sto_dir_dentry);
++        if (IS_ERR(hidden_sto_dir_dentry))
++                goto out;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++	err = vfs_create(hidden_sto_dir_dentry->d_inode,
++			 hidden_sto_dentry,
++			 mode, nd);
++#else
++	err = vfs_create(hidden_sto_dir_dentry->d_inode,
++			 hidden_sto_dentry,
++			 mode);
++#endif
++        if(err) {
++		printk(KERN_CRIT "mini_fo: create_sto_file: ERROR creating sto file.\n");
++                goto out_lock;
++	}
++
++	if(!dtohd2(dentry)->d_inode) {
++		printk(KERN_CRIT "mini_fo: create_sto_file: ERROR creating sto file [2].\n");
++                err = -EINVAL;
++                goto out_lock;
++        }
++
++        /* interpose the new inode */
++        if(dtost(dentry) == DELETED) {
++                dtost(dentry) = DEL_REWRITTEN;
++                err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        }
++        else if(dtost(dentry) == NON_EXISTANT) {
++                dtost(dentry) = CREATED;
++                err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++                if(err)
++                        goto out_lock;
++        }
++        else if(dtost(dentry) == UNMODIFIED) {
++                dtost(dentry) = MODIFIED;
++                /* interpose on new inode */
++                if(itohi2(dentry->d_inode) != NULL) {
++                        printk(KERN_CRIT "mini_fo: create_sto_file: invalid inode detected.\n");
++                        err = -EINVAL;
++                        goto out_lock;
++                }
++                itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++	}
++	fist_copy_attr_timesizes(dentry->d_parent->d_inode,
++				 hidden_sto_dir_dentry->d_inode);
++
++ out_lock:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++        dput(hidden_sto_dir_dentry);
++ out:
++	return err;
++}
++
++/* create the sto dir, setup states */
++int create_sto_dir(dentry_t *dentry, int mode)
++{
++	int err = 0;
++	inode_t *dir;
++	dentry_t *hidden_sto_dentry;
++        dentry_t *hidden_sto_dir_dentry;
++
++	/* had to take the "!S_ISDIR(mode))" check out, because it failed */
++	if(exists_in_storage(dentry)) {
++                printk(KERN_CRIT "mini_fo: create_sto_dir: wrong type or state.\\
++n");
++                err = -EINVAL;
++                goto out;
++        }
++
++	err = get_neg_sto_dentry(dentry);
++	if(err) {
++		err = -EINVAL;
++		goto out;
++	}
++
++	dir = dentry->d_parent->d_inode;
++	hidden_sto_dentry = dtohd2(dentry);
++
++	/* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++	err = PTR_ERR(hidden_sto_dir_dentry);
++	if (IS_ERR(hidden_sto_dir_dentry))
++		goto out;
++
++	err = vfs_mkdir(hidden_sto_dir_dentry->d_inode,
++			hidden_sto_dentry,
++			mode);
++	if(err) {
++		printk(KERN_CRIT "mini_fo: create_sto_dir: ERROR creating sto dir.\n");
++		goto out_lock;
++	}
++
++	if(!dtohd2(dentry)->d_inode) {
++		printk(KERN_CRIT "mini_fo: create_sto_dir: ERROR creating sto dir [2].\n");
++		err = -EINVAL;
++		goto out_lock;
++	}
++
++	/* interpose the new inode */
++	if(dtost(dentry) == DELETED) {
++		dtost(dentry) = DEL_REWRITTEN;
++		err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++		if(err)
++			goto out_lock;
++	}
++	else if(dtopd(dentry)->state == NON_EXISTANT) {
++		dtopd(dentry)->state = CREATED;
++		err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++		if(err)
++			goto out_lock;
++	}
++	else if(dtopd(dentry)->state == UNMODIFIED) {
++		dtopd(dentry)->state = MODIFIED;
++		/* interpose on new inode */
++		if(itohi2(dentry->d_inode) != NULL) {
++			printk(KERN_CRIT "mini_fo:  create_sto_dir: ERROR, invalid inode detected.\n");
++			err = -EINVAL;
++			goto out_lock;
++		}
++		itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++	}
++
++	fist_copy_attr_timesizes(dir, hidden_sto_dir_dentry->d_inode);
++
++	/* initalize the wol list */
++	itopd(dentry->d_inode)->deleted_list_size = -1;
++	itopd(dentry->d_inode)->renamed_list_size = -1;
++	meta_build_lists(dentry);
++
++
++ out_lock:
++	/* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++	dput(hidden_sto_dir_dentry);
++ out:
++	return err;
++}
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++int create_sto_nod(dentry_t *dentry, int mode, dev_t dev)
++#else
++int create_sto_nod(dentry_t *dentry, int mode, int dev)
++#endif
++{
++	int err = 0;
++	inode_t *dir;
++	dentry_t *hidden_sto_dentry;
++	dentry_t *hidden_sto_dir_dentry;
++
++	if(exists_in_storage(dentry)) {
++		err = -EEXIST;
++		goto out;
++	}
++	err = get_neg_sto_dentry(dentry);
++
++	if (err) {
++                printk(KERN_CRIT "mini_fo: create_sto_nod: ERROR getting neg. sto dentry.\n");
++                goto out;
++        }
++
++	dir = dentry->d_parent->d_inode;
++	hidden_sto_dentry = dtohd2(dentry);
++
++	/* lock parent */
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++	err = PTR_ERR(hidden_sto_dir_dentry);
++	if (IS_ERR(hidden_sto_dir_dentry))
++		goto out;
++
++	err = vfs_mknod(hidden_sto_dir_dentry->d_inode, hidden_sto_dentry, mode, dev);
++	if(err)
++		goto out_lock;
++
++	if(!dtohd2(dentry)->d_inode) {
++		printk(KERN_CRIT "mini_fo: create_sto_nod: creating storage inode failed [1].\n");
++		err = -EINVAL; /* return something indicating failure */
++		goto out_lock;
++	}
++
++	/* interpose the new inode */
++	if(dtost(dentry) == DELETED) {
++		dtost(dentry) = DEL_REWRITTEN;
++		err = mini_fo_tri_interpose(NULL, hidden_sto_dentry, dentry, dir->i_sb, 0);
++		if(err)
++			goto out_lock;
++	}
++	else if(dtost(dentry) == NON_EXISTANT) {
++		dtost(dentry) = CREATED;
++		err = mini_fo_tri_interpose(dtohd(dentry), hidden_sto_dentry, dentry, dir->i_sb, 0);
++		if(err)
++			goto out_lock;
++	}
++	else if(dtost(dentry) == UNMODIFIED) {
++		dtost(dentry) = MODIFIED;
++		/* interpose on new inode */
++		if(itohi2(dentry->d_inode) != NULL) {
++			printk(KERN_CRIT "mini_fo: create_sto_nod: error, invalid inode detected.\n");
++			err = -EINVAL;
++			goto out_lock;
++		}
++		itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++	}
++
++	fist_copy_attr_timesizes(dir, hidden_sto_dir_dentry->d_inode);
++
++ out_lock:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++	dput(hidden_sto_dir_dentry);
++ out:
++	return err;
++}
++
++
++/* unimplemented (and possibly not usefull):
++
++   nondir-del_to_del_rew
++   nondir-non_exist_to_creat
++
++   dir-unmod_to_del
++   dir-mod_to_del
++   dir-creat_to_del
++   dir-del_rew_to_del
++   dir-del_to_del_rew
++   dir-non_exist_to_creat
++*/
++
++
++/* bring a file of any type from state UNMODIFIED to MODIFIED */
++int nondir_unmod_to_mod(dentry_t *dentry, int cp_flag)
++{
++	int err = 0;
++	struct vfsmount *tgt_mnt;
++	struct vfsmount *src_mnt;
++	dentry_t *tgt_dentry;
++	dentry_t *src_dentry;
++	dentry_t *hidden_sto_dentry;
++	dentry_t *hidden_sto_dir_dentry;
++
++	check_mini_fo_dentry(dentry);
++
++	if((dtost(dentry) != UNMODIFIED) ||
++	   S_ISDIR(dentry->d_inode->i_mode)) {
++		printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  wrong type or state.\n");
++		err = -1;
++		goto out;
++	}
++	err = get_neg_sto_dentry(dentry);
++
++	if (err) {
++		printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  ERROR getting neg. sto dentry.\n");
++		goto out;
++	}
++
++	/* create sto file */
++	hidden_sto_dentry = dtohd2(dentry);
++
++	/* lock parent */
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++        down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++	err = PTR_ERR(hidden_sto_dir_dentry);
++        if (IS_ERR(hidden_sto_dir_dentry))
++                goto out;
++
++	/* handle different types of nondirs */
++	if(S_ISCHR(dentry->d_inode->i_mode) ||
++	   S_ISBLK(dentry->d_inode->i_mode)) {
++		err = vfs_mknod(hidden_sto_dir_dentry->d_inode,
++				hidden_sto_dentry,
++				dtohd(dentry)->d_inode->i_mode,
++				dtohd(dentry)->d_inode->i_rdev);
++	}
++
++	else if(S_ISREG(dentry->d_inode->i_mode)) {
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++		err = vfs_create(hidden_sto_dir_dentry->d_inode,
++				 hidden_sto_dentry,
++				 dtohd(dentry)->d_inode->i_mode, NULL);
++#else
++		err = vfs_create(hidden_sto_dir_dentry->d_inode,
++				 hidden_sto_dentry,
++				 dtohd(dentry)->d_inode->i_mode);
++#endif
++	}
++        if(err) {
++		printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  ERROR creating sto file.\n");
++                goto out_lock;
++	}
++
++	/* interpose on new inode */
++	if(itohi2(dentry->d_inode) != NULL) {
++		printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                  ERROR, invalid inode detected.\n");
++		err = -EINVAL;
++		goto out_lock;
++	}
++
++	itohi2(dentry->d_inode) = igrab(dtohd2(dentry)->d_inode);
++
++        fist_copy_attr_timesizes(dentry->d_parent->d_inode,
++				 hidden_sto_dir_dentry->d_inode);
++	dtost(dentry) = MODIFIED;
++
++	/* copy contents if regular file and cp_flag = 1 */
++	if((cp_flag == 1) && S_ISREG(dentry->d_inode->i_mode)) {
++
++		/* unlock first */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++		mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++		up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++		dput(hidden_sto_dir_dentry);
++
++		tgt_dentry = dtohd2(dentry);
++		tgt_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++		src_dentry = dtohd(dentry);
++		src_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt;
++
++		err = mini_fo_cp_cont(tgt_dentry, tgt_mnt,
++				      src_dentry, src_mnt);
++		if(err) {
++			printk(KERN_CRIT "mini_fo: nondir_unmod_to_mod: \
++                                          ERROR copying contents.\n");
++		}
++		goto out;
++	}
++
++ out_lock:
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++        dput(hidden_sto_dir_dentry);
++ out:
++	return err;
++}
++
++/* this function is currently identical to nondir_creat_to_del */
++int nondir_del_rew_to_del(dentry_t *dentry)
++{
++	return nondir_creat_to_del(dentry);
++}
++
++int nondir_creat_to_del(dentry_t *dentry)
++{
++	int err = 0;
++
++	inode_t *hidden_sto_dir_inode;
++	dentry_t *hidden_sto_dir_dentry;
++	dentry_t *hidden_sto_dentry;
++
++	check_mini_fo_dentry(dentry);
++
++	/* for now this function serves for both state DEL_REWRITTEN and
++	 * CREATED */
++	if(!(dtost(dentry) == CREATED || (dtost(dentry) == DEL_REWRITTEN)) ||
++	   S_ISDIR(dentry->d_inode->i_mode)) {
++		printk(KERN_CRIT "mini_fo: nondir_mod_to_del/del_rew_to_del: \
++                                  wrong type or state.\n");
++		err = -1;
++		goto out;
++	}
++
++	hidden_sto_dir_inode = itohi2(dentry->d_parent->d_inode);
++	hidden_sto_dentry = dtohd2(dentry);
++
++	/* was: hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry);*/
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++	/* avoid destroying the hidden inode if the file is in use */
++	dget(hidden_sto_dentry);
++	err = vfs_unlink(hidden_sto_dir_inode, hidden_sto_dentry);
++	dput(hidden_sto_dentry);
++	if(!err)
++		d_delete(hidden_sto_dentry);
++
++	/* propagate number of hard-links */
++	dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++
++	dtost(dentry) = NON_EXISTANT;
++
++	/* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++	dput(hidden_sto_dir_dentry);
++
++ out:
++	return err;
++}
++
++int nondir_mod_to_del(dentry_t *dentry)
++{
++	int err;
++	dentry_t *hidden_sto_dentry;
++	inode_t *hidden_sto_dir_inode;
++	dentry_t *hidden_sto_dir_dentry;
++
++	check_mini_fo_dentry(dentry);
++
++	if(dtost(dentry) != MODIFIED ||
++	   S_ISDIR(dentry->d_inode->i_mode)) {
++		printk(KERN_CRIT "mini_fo: nondir_mod_to_del: \
++                                  wrong type or state.\n");
++		err = -1;
++		goto out;
++	}
++
++	hidden_sto_dir_inode = itohi2(dentry->d_parent->d_inode);
++	hidden_sto_dentry = dtohd2(dentry);
++
++	/* was hidden_sto_dir_dentry = lock_parent(hidden_sto_dentry); */
++	hidden_sto_dir_dentry = dget(hidden_sto_dentry->d_parent);
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	down(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++
++	/* avoid destroying the hidden inode if the file is in use */
++	dget(hidden_sto_dentry);
++	err = vfs_unlink(hidden_sto_dir_inode, hidden_sto_dentry);
++	dput(hidden_sto_dentry);
++	if(!err)
++		d_delete(hidden_sto_dentry);
++
++	/* propagate number of hard-links */
++	dentry->d_inode->i_nlink = itohi2(dentry->d_inode)->i_nlink;
++
++	/* dput base dentry, this will relase the inode and free the
++	 * dentry, as we will never need it again. */
++	dput(dtohd(dentry));
++	dtohd(dentry) = NULL;
++	dtost(dentry) = DELETED;
++
++	/* add deleted file to META-file */
++	meta_add_d_entry(dentry->d_parent,
++			 dentry->d_name.name,
++			 dentry->d_name.len);
++
++	/* was: unlock_dir(hidden_sto_dir_dentry); */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
++	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++#else
++	up(&hidden_sto_dir_dentry->d_inode->i_sem);
++#endif
++	dput(hidden_sto_dir_dentry);
++
++ out:
++	return err;
++}
++
++int nondir_unmod_to_del(dentry_t *dentry)
++{
++	int err = 0;
++
++	check_mini_fo_dentry(dentry);
++
++	if(dtost(dentry) != UNMODIFIED ||
++	   S_ISDIR(dentry->d_inode->i_mode)) {
++		printk(KERN_CRIT "mini_fo: nondir_unmod_to_del: \
++                                  wrong type or state.\n");
++		err = -1;
++		goto out;
++	}
++
++	 /* next we have to get a negative dentry for the storage file */
++	err = get_neg_sto_dentry(dentry);
++
++	if(err)
++		goto out;
++
++	/* add deleted file to META lists */
++	err = meta_add_d_entry(dentry->d_parent,
++			       dentry->d_name.name,
++			       dentry->d_name.len);
++
++	if(err)
++		goto out;
++
++	/* dput base dentry, this will relase the inode and free the
++	 * dentry, as we will never need it again. */
++	dput(dtohd(dentry));
++	dtohd(dentry) = NULL;
++	dtost(dentry) = DELETED;
++
++ out:
++	return err;
++}
++
++/* bring a dir from state UNMODIFIED to MODIFIED */
++int dir_unmod_to_mod(dentry_t *dentry)
++{
++	int err;
++
++	check_mini_fo_dentry(dentry);
++
++	if(dtost(dentry) != UNMODIFIED ||
++	   !S_ISDIR(dentry->d_inode->i_mode)) {
++		printk(KERN_CRIT "mini_fo: dir_unmod_to_mod: \
++                                  wrong type or state.\n");
++		err = -1;
++		goto out;
++	}
++
++	/* this creates our dir incl. sto. structure */
++	err = build_sto_structure(dentry->d_parent, dentry);
++	if(err) {
++		printk(KERN_CRIT "mini_fo: dir_unmod_to_mod: \
++                                  build_sto_structure failed.\n");
++		goto out;
++	}
++ out:
++	return err;
++}
++
+--- /dev/null
++++ b/fs/mini_fo/super.c
+@@ -0,0 +1,285 @@
++/*
++ * Copyright (c) 1997-2003 Erez Zadok
++ * Copyright (c) 2001-2003 Stony Brook University
++ *
++ * For specific licensing information, see the COPYING file distributed with
++ * this package, or get one from ftp://ftp.filesystems.org/pub/fist/COPYING.
++ *
++ * This Copyright notice must be kept intact and distributed with all
++ * fistgen sources INCLUDING sources generated by fistgen.
++ */
++/*
++ * Copyright (C) 2004, 2005 Markus Klotzbuecher <mk@creamnet.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version
++ * 2 of the License, or (at your option) any later version.
++ */
++
++/*
++ *  $Id$
++ */
++
++#ifdef HAVE_CONFIG_H
++# include <config.h>
++#endif
++
++#include "fist.h"
++#include "mini_fo.h"
++
++
++STATIC void
++mini_fo_read_inode(inode_t *inode)
++{
++	static struct address_space_operations mini_fo_empty_aops;
++
++	__itopd(inode) = kmalloc(sizeof(struct mini_fo_inode_info), GFP_KERNEL);
++	if (!itopd(inode)) {
++		printk("<0>%s:%s:%d: No kernel memory!\n", __FILE__, __FUNCTION__, __LINE__);
++		ASSERT(NULL);
++	}
++	itohi(inode) = NULL;
++	itohi2(inode) = NULL;
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++	inode->i_version++;
++#else
++	inode->i_version = ++event;	/* increment inode version */
++#endif
++	inode->i_op = &mini_fo_main_iops;
++	inode->i_fop = &mini_fo_main_fops;
++#if 0
++	/*
++	 * XXX: To export a file system via NFS, it has to have the
++	 * FS_REQUIRES_DEV flag, so turn it on.  But should we inherit it from
++	 * the lower file system, or can we allow our file system to be exported
++	 * even if the lower one cannot be natively exported.
++	 */
++	inode->i_sb->s_type->fs_flags |= FS_REQUIRES_DEV;
++	/*
++	 * OK, the above was a hack, which is now turned off because it may
++	 * cause a panic/oops on some systems.  The correct way to export a
++	 * "nodev" filesystem is via using nfs-utils > 1.0 and the "fsid=" export
++	 * parameter, which requires 2.4.20 or later.
++	 */
++#endif
++	/* I don't think ->a_ops is ever allowed to be NULL */
++	inode->i_mapping->a_ops = &mini_fo_empty_aops;
++}
++
++
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++/*
++ * No need to call write_inode() on the lower inode, as it
++ * will have been marked 'dirty' anyway. But we might need
++ * to write some of our own stuff to disk.
++ */
++STATIC void
++mini_fo_write_inode(inode_t *inode, int sync)
++{
++	print_entry_location();
++	print_exit_location();
++}
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++
++
++STATIC void
++mini_fo_put_inode(inode_t *inode)
++{
++	/*
++	 * This is really funky stuff:
++	 * Basically, if i_count == 1, iput will then decrement it and this inode will be destroyed.
++	 * It is currently holding a reference to the hidden inode.
++	 * Therefore, it needs to release that reference by calling iput on the hidden inode.
++	 * iput() _will_ do it for us (by calling our clear_inode), but _only_ if i_nlink == 0.
++	 * The problem is, NFS keeps i_nlink == 1 for silly_rename'd files.
++	 * So we must for our i_nlink to 0 here to trick iput() into calling our clear_inode.
++	 */
++	if (atomic_read(&inode->i_count) == 1)
++		inode->i_nlink = 0;
++}
++
++
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++/*
++ * we now define delete_inode, because there are two VFS paths that may
++ * destroy an inode: one of them calls clear inode before doing everything
++ * else that's needed, and the other is fine.  This way we truncate the inode
++ * size (and its pages) and then clear our own inode, which will do an iput
++ * on our and the lower inode.
++ */
++STATIC void
++mini_fo_delete_inode(inode_t *inode)
++{
++	print_entry_location();
++
++	fist_checkinode(inode, "mini_fo_delete_inode IN");
++	inode->i_size = 0;		/* every f/s seems to do that */
++	clear_inode(inode);
++
++	print_exit_location();
++}
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++
++
++/* final actions when unmounting a file system */
++STATIC void
++mini_fo_put_super(super_block_t *sb)
++{
++	if (stopd(sb)) {
++		mntput(stopd(sb)->hidden_mnt);
++		mntput(stopd(sb)->hidden_mnt2);
++
++		/* mk: no! dput(stopd(sb)->base_dir_dentry);
++		   dput(stopd(sb)->storage_dir_dentry); */
++
++		kfree(stopd(sb));
++		__stopd(sb) = NULL;
++	}
++}
++
++
++#ifdef NOT_NEEDED
++/*
++ * This is called in do_umount before put_super.
++ * The superblock lock is not held yet.
++ * We probably do not need to define this or call write_super
++ * on the hidden_sb, because sync_supers() will get to hidden_sb
++ * sooner or later.  But it is also called from file_fsync()...
++ */
++STATIC void
++mini_fo_write_super(super_block_t *sb)
++{
++	return;
++}
++#endif /* NOT_NEEDED */
++
++
++STATIC int
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_statfs(struct dentry *d, struct kstatfs *buf)
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++mini_fo_statfs(super_block_t *sb, struct kstatfs *buf)
++#else
++mini_fo_statfs(super_block_t *sb, struct statfs *buf)
++#endif
++{
++	int err = 0;
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++	struct dentry *hidden_d;
++
++	hidden_d = dtohd(d);
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36)
++	err = statfs_by_dentry(hidden_d, buf);
++#else
++	err = vfs_statfs(hidden_d, buf);
++#endif
++#else
++	super_block_t *hidden_sb;
++
++	hidden_sb = stohs(sb);
++	err = vfs_statfs(hidden_sb, buf);
++#endif
++
++	return err;
++}
++
++
++/*
++ * XXX: not implemented.  This is not allowed yet.
++ * Should we call this on the hidden_sb?  Probably not.
++ */
++STATIC int
++mini_fo_remount_fs(super_block_t *sb, int *flags, char *data)
++{
++	//printk(KERN_CRIT "mini_fo_remount_fs: WARNING, this function is umimplemented.\n");
++	return -ENOSYS;
++}
++
++
++/*
++ * Called by iput() when the inode reference count reached zero
++ * and the inode is not hashed anywhere.  Used to clear anything
++ * that needs to be, before the inode is completely destroyed and put
++ * on the inode free list.
++ */
++STATIC void
++mini_fo_clear_inode(inode_t *inode)
++{
++	/*
++	 * Decrement a reference to a hidden_inode, which was incremented
++	 * by our read_inode when it was created initially.
++	 */
++
++	/* release the wol_list */
++	if(S_ISDIR(inode->i_mode)) {
++		__meta_put_lists(inode);
++	}
++
++	/* mk: fan out fun */
++	if(itohi(inode))
++		iput(itohi(inode));
++	if(itohi2(inode))
++		iput(itohi2(inode));
++
++	// XXX: why this assertion fails?
++	// because it doesn't like us
++	// ASSERT((inode->i_state & I_DIRTY) == 0);
++	kfree(itopd(inode));
++	__itopd(inode) = NULL;
++}
++
++
++/*
++ * Called in do_umount() if the MNT_FORCE flag was used and this
++ * function is defined.  See comment in linux/fs/super.c:do_umount().
++ * Used only in nfs, to kill any pending RPC tasks, so that subsequent
++ * code can actually succeed and won't leave tasks that need handling.
++ *
++ * PS. I wonder if this is somehow useful to undo damage that was
++ * left in the kernel after a user level file server (such as amd)
++ * dies.
++ */
++STATIC void
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++mini_fo_umount_begin(struct vfsmount *mnt, int flags)
++{
++	struct vfsmount *hidden_mnt;
++
++	hidden_mnt = stopd(mnt->mnt_sb)->hidden_mnt;
++
++	if (hidden_mnt->mnt_sb->s_op->umount_begin)
++		hidden_mnt->mnt_sb->s_op->umount_begin(hidden_mnt, flags);
++
++}
++#else
++mini_fo_umount_begin(super_block_t *sb)
++{
++	super_block_t *hidden_sb;
++
++	hidden_sb = stohs(sb);
++
++	if (hidden_sb->s_op->umount_begin)
++		hidden_sb->s_op->umount_begin(hidden_sb);
++
++}
++#endif
++
++
++struct super_operations mini_fo_sops =
++{
++	read_inode:		mini_fo_read_inode,
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++	write_inode:	mini_fo_write_inode,
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++	put_inode:		mini_fo_put_inode,
++#if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
++	delete_inode:	mini_fo_delete_inode,
++#endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++	put_super:		mini_fo_put_super,
++	statfs:		mini_fo_statfs,
++	remount_fs:		mini_fo_remount_fs,
++	clear_inode:	mini_fo_clear_inode,
++	umount_begin:	mini_fo_umount_begin,
++};
+--- /dev/null
++++ b/fs/mini_fo/Kconfig
+@@ -0,0 +1,3 @@
++config MINI_FO
++	tristate "Mini fanout overlay filesystem"
++
diff --git a/target/linux/generic/patches-2.6.38/210-mini_fo_2.6.25_fixes.patch b/target/linux/generic/patches-2.6.38/210-mini_fo_2.6.25_fixes.patch
new file mode 100644
index 0000000000..d021ec1b30
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/210-mini_fo_2.6.25_fixes.patch
@@ -0,0 +1,143 @@
+--- a/fs/mini_fo/main.c
++++ b/fs/mini_fo/main.c
+@@ -79,6 +79,7 @@ mini_fo_tri_interpose(dentry_t *hidden_d
+ 	 * of the new inode's fields
+ 	 */
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
+ 	/*
+ 	 * original: inode = iget(sb, hidden_inode->i_ino);
+ 	 */
+@@ -87,6 +88,13 @@ mini_fo_tri_interpose(dentry_t *hidden_d
+ 		err = -EACCES;		/* should be impossible??? */
+ 		goto out;
+ 	}
++#else
++	inode = mini_fo_iget(sb, iunique(sb, 25));
++	if (IS_ERR(inode)) {
++		err = PTR_ERR(inode);
++		goto out;
++	}
++#endif
+ 
+ 	/*
+ 	 * interpose the inode if not already interposed
+@@ -184,9 +192,9 @@ mini_fo_parse_options(super_block_t *sb,
+ 				hidden_root = ERR_PTR(err);
+ 				goto out;
+ 			}
+-			hidden_root = nd.dentry;
+-			stopd(sb)->base_dir_dentry = nd.dentry;
+-			stopd(sb)->hidden_mnt = nd.mnt;
++			hidden_root = nd_get_dentry(&nd);
++			stopd(sb)->base_dir_dentry = nd_get_dentry(&nd);
++			stopd(sb)->hidden_mnt = nd_get_mnt(&nd);
+ 
+ 		} else if(!strncmp("sto=", options, 4)) {
+ 			/* parse the storage dir */
+@@ -204,9 +212,9 @@ mini_fo_parse_options(super_block_t *sb,
+ 				hidden_root2 = ERR_PTR(err);
+ 				goto out;
+ 			}
+-			hidden_root2 = nd2.dentry;
+-			stopd(sb)->storage_dir_dentry = nd2.dentry;
+-			stopd(sb)->hidden_mnt2 = nd2.mnt;
++			hidden_root2 = nd_get_dentry(&nd2);
++			stopd(sb)->storage_dir_dentry = nd_get_dentry(&nd2);
++			stopd(sb)->hidden_mnt2 = nd_get_mnt(&nd2);
+ 			stohs2(sb) = hidden_root2->d_sb;
+ 
+ 			/* validate storage dir, this is done in
+--- a/fs/mini_fo/mini_fo.h
++++ b/fs/mini_fo/mini_fo.h
+@@ -302,6 +302,10 @@ extern int mini_fo_tri_interpose(dentry_
+ extern int mini_fo_cp_cont(dentry_t *tgt_dentry, struct vfsmount *tgt_mnt,
+ 			   dentry_t *src_dentry, struct vfsmount *src_mnt);
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
++extern struct inode *mini_fo_iget(struct super_block *sb, unsigned long ino);
++#endif
++
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ extern int mini_fo_create(inode_t *dir, dentry_t *dentry, int mode, struct nameidata *nd);
+ 
+@@ -501,6 +505,29 @@ static inline void double_unlock(struct
+ #endif  /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) */
+ #endif /* __KERNEL__ */
+ 
++
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
++static inline dentry_t *nd_get_dentry(struct nameidata *nd)
++{
++	return (nd->path.dentry);
++}
++
++static inline struct vfsmount *nd_get_mnt(struct nameidata *nd)
++{
++	return (nd->path.mnt);
++}
++#else
++static inline dentry_t *nd_get_dentry(struct nameidata *nd)
++{
++	return (nd->dentry);
++}
++
++static inline struct vfsmount *nd_get_mnt(struct nameidata *nd)
++{
++	return (nd->mnt);
++}
++#endif
++
+ /*
+  * Definitions for user and kernel code
+  */
+--- a/fs/mini_fo/super.c
++++ b/fs/mini_fo/super.c
+@@ -266,10 +266,31 @@ mini_fo_umount_begin(super_block_t *sb)
+ }
+ #endif
+ 
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
++struct inode *
++mini_fo_iget(struct super_block *sb, unsigned long ino)
++{
++	struct inode *inode;
++
++	inode = iget_locked(sb, ino);
++	if (!inode)
++		return ERR_PTR(-ENOMEM);
++
++	if (!(inode->i_state & I_NEW))
++		return inode;
++
++	mini_fo_read_inode(inode);
++
++	unlock_new_inode(inode);
++	return inode;
++}
++#endif /* if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25) */
+ 
+ struct super_operations mini_fo_sops =
+ {
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25)
+ 	read_inode:		mini_fo_read_inode,
++#endif
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+ 	write_inode:	mini_fo_write_inode,
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
+--- a/fs/mini_fo/aux.c
++++ b/fs/mini_fo/aux.c
+@@ -164,11 +164,11 @@ dentry_t *bpath_walk(super_block_t *sb,
+ 	err = vfs_path_lookup(mnt->mnt_root, mnt, bpath+1, 0, &nd);
+ 
+ 	/* validate */
+-	if (err || !nd.dentry || !nd.dentry->d_inode) {
++	if (err || !nd_get_dentry(&nd) || !nd_get_dentry(&nd)->d_inode) {
+ 		printk(KERN_CRIT "mini_fo: bpath_walk: path_walk failed.\n");
+ 		return NULL;
+ 	}
+-	return nd.dentry;
++	return nd_get_dentry(&nd);
+ }
+ 
+ 
diff --git a/target/linux/generic/patches-2.6.38/211-mini_fo_2.6.25_dentry_open_war.patch b/target/linux/generic/patches-2.6.38/211-mini_fo_2.6.25_dentry_open_war.patch
new file mode 100644
index 0000000000..48a19429b9
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/211-mini_fo_2.6.25_dentry_open_war.patch
@@ -0,0 +1,66 @@
+--- a/fs/mini_fo/meta.c
++++ b/fs/mini_fo/meta.c
+@@ -442,6 +442,11 @@ int meta_write_d_entry(dentry_t *dentry,
+ 			   S_IRUSR | S_IWUSR);
+ #endif
+ 	}
++
++	/* $%& err, is this correct? */
++	meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++	mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+@@ -535,6 +540,11 @@ int meta_write_r_entry(dentry_t *dentry,
+ 			   meta_dentry, S_IRUSR | S_IWUSR);
+ #endif
+ 	}
++
++	/* $%& err, is this correct? */
++	meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++	mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+@@ -671,14 +681,16 @@ int meta_sync_d_list(dentry_t *dentry, i
+ 		}
+ 	}
+ 
++	/* $%& err, is this correct? */
++	meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++	mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
+                                   ERROR opening meta file.\n");
+-		/* we don't mntget so we dont't mntput (for now)
+-		 * mntput(meta_mnt);
+-		 */
++		mntput(meta_mnt);
+ 		dput(meta_dentry);
+ 		err = -1;
+                 goto out;
+@@ -811,14 +823,16 @@ int meta_sync_r_list(dentry_t *dentry, i
+ 		}
+ 	}
+ 
++	/* $%& err, is this correct? */
++	meta_mnt = stopd(dentry->d_inode->i_sb)->hidden_mnt2;
++	mntget(meta_mnt);
++
+         /* open META-file for writing */
+         meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
+                                   ERROR opening meta file.\n");
+-		/* we don't mntget so we dont't mntput (for now)
+-		 * mntput(meta_mnt);
+-		 */
++		mntput(meta_mnt);
+ 		dput(meta_dentry);
+ 		err = -1;
+                 goto out;
diff --git a/target/linux/generic/patches-2.6.38/212-mini_fo_2.6.26_fixes.patch b/target/linux/generic/patches-2.6.38/212-mini_fo_2.6.26_fixes.patch
new file mode 100644
index 0000000000..d2a843c82e
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/212-mini_fo_2.6.26_fixes.patch
@@ -0,0 +1,37 @@
+--- a/fs/mini_fo/super.c
++++ b/fs/mini_fo/super.c
+@@ -84,6 +84,7 @@ mini_fo_write_inode(inode_t *inode, int
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
+ 
+ 
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
+ STATIC void
+ mini_fo_put_inode(inode_t *inode)
+ {
+@@ -99,6 +100,7 @@ mini_fo_put_inode(inode_t *inode)
+ 	if (atomic_read(&inode->i_count) == 1)
+ 		inode->i_nlink = 0;
+ }
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) */
+ 
+ 
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+@@ -242,7 +244,7 @@ mini_fo_clear_inode(inode_t *inode)
+  * dies.
+  */
+ STATIC void
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,18)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
+ mini_fo_umount_begin(struct vfsmount *mnt, int flags)
+ {
+ 	struct vfsmount *hidden_mnt;
+@@ -294,7 +296,9 @@ struct super_operations mini_fo_sops =
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+ 	write_inode:	mini_fo_write_inode,
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
+ 	put_inode:		mini_fo_put_inode,
++#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) */
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+ 	delete_inode:	mini_fo_delete_inode,
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
diff --git a/target/linux/generic/patches-2.6.38/213-mini_fo_2.6.27_fixes.patch b/target/linux/generic/patches-2.6.38/213-mini_fo_2.6.27_fixes.patch
new file mode 100644
index 0000000000..f92c18b254
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/213-mini_fo_2.6.27_fixes.patch
@@ -0,0 +1,41 @@
+--- a/fs/mini_fo/inode.c
++++ b/fs/mini_fo/inode.c
+@@ -439,7 +439,7 @@ mini_fo_symlink(inode_t *dir, dentry_t *
+ 	int err=0;
+ 	dentry_t *hidden_sto_dentry;
+ 	dentry_t *hidden_sto_dir_dentry;
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27))
+         umode_t mode;
+ #endif
+ 
+@@ -466,7 +466,7 @@ mini_fo_symlink(inode_t *dir, dentry_t *
+ 	down(&hidden_sto_dir_dentry->d_inode->i_sem);
+ #endif
+ 
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27))
+ 	mode = S_IALLUGO;
+ 	err = vfs_symlink(hidden_sto_dir_dentry->d_inode,
+ 			  hidden_sto_dentry, symname, mode);
+@@ -1128,7 +1128,7 @@ void mini_fo_put_link(struct dentry *den
+ #endif
+ 
+ STATIC int
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,27))
+ mini_fo_permission(inode_t *inode, int mask, struct nameidata *nd)
+ #else
+ mini_fo_permission(inode_t *inode, int mask)
+@@ -1150,8 +1150,9 @@ mini_fo_permission(inode_t *inode, int m
+ 	 *	if (err)
+ 	 *		goto out;
+ 	 */
+-
+-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
++	err = inode_permission(hidden_inode, mask);
++#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ 	err = permission(hidden_inode, mask, nd);
+ #else
+ 	err = permission(hidden_inode, mask);
diff --git a/target/linux/generic/patches-2.6.38/214-mini_fo_2.6.29.patch b/target/linux/generic/patches-2.6.38/214-mini_fo_2.6.29.patch
new file mode 100644
index 0000000000..63d704bf51
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/214-mini_fo_2.6.29.patch
@@ -0,0 +1,96 @@
+--- a/fs/mini_fo/aux.c
++++ b/fs/mini_fo/aux.c
+@@ -236,7 +236,7 @@ int mini_fo_cp_cont(dentry_t *tgt_dentry
+ 	mntget(src_mnt);
+ 
+ 	/* open file write only */
+-	tgt_file = dentry_open(tgt_dentry, tgt_mnt, 0x1);
++	tgt_file = dentry_open(tgt_dentry, tgt_mnt, 0x1, current_cred());
+ 	if(!tgt_file || IS_ERR(tgt_file)) {
+ 		printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening target file.\n");
+ 		err = PTR_ERR(tgt_file);
+@@ -244,7 +244,7 @@ int mini_fo_cp_cont(dentry_t *tgt_dentry
+ 	}
+ 
+ 	/* open file read only */
+-	src_file = dentry_open(src_dentry, src_mnt, 0x0);
++	src_file = dentry_open(src_dentry, src_mnt, 0x0, current_cred());
+ 	if(!src_file || IS_ERR(src_file)) {
+ 		printk(KERN_CRIT "mini_fo_cp_cont: ERROR opening source file.\n");
+ 		err = PTR_ERR(src_file);
+--- a/fs/mini_fo/file.c
++++ b/fs/mini_fo/file.c
+@@ -437,7 +437,7 @@ mini_fo_open(inode_t *inode, file_t *fil
+ 			mntget(stopd(inode->i_sb)->hidden_mnt);
+ 			hidden_file = dentry_open(hidden_dentry,
+ 						  stopd(inode->i_sb)->hidden_mnt,
+-						  hidden_flags);
++						  hidden_flags, file->f_cred);
+ 			if (IS_ERR(hidden_file)) {
+ 				err = PTR_ERR(hidden_file);
+ 				dput(hidden_dentry);
+@@ -479,7 +479,7 @@ mini_fo_open(inode_t *inode, file_t *fil
+ 			mntget(stopd(inode->i_sb)->hidden_mnt);
+ 			hidden_file = dentry_open(hidden_dentry,
+ 						  stopd(inode->i_sb)->hidden_mnt,
+-						  hidden_flags);
++						  hidden_flags, file->f_cred);
+ 			if (IS_ERR(hidden_file)) {
+ 				err = PTR_ERR(hidden_file);
+ 				dput(hidden_dentry);
+@@ -512,7 +512,7 @@ mini_fo_open(inode_t *inode, file_t *fil
+ 	mntget(stopd(inode->i_sb)->hidden_mnt2);
+ 	hidden_sto_file = dentry_open(hidden_sto_dentry,
+ 				      stopd(inode->i_sb)->hidden_mnt2,
+-				      hidden_flags);
++				      hidden_flags, file->f_cred);
+ 
+ 	/* dentry_open dputs the dentry if it fails */
+ 	if (IS_ERR(hidden_sto_file)) {
+--- a/fs/mini_fo/meta.c
++++ b/fs/mini_fo/meta.c
+@@ -56,7 +56,7 @@ int meta_build_lists(dentry_t *dentry)
+ 
+ 
+ 		/* open META-file for reading */
+-		meta_file = dentry_open(meta_dentry, meta_mnt, 0x0);
++		meta_file = dentry_open(meta_dentry, meta_mnt, 0x0, current_cred());
+ 		if(!meta_file || IS_ERR(meta_file)) {
+ 			printk(KERN_CRIT "mini_fo: meta_build_lists: \
+                                           ERROR opening META file.\n");
+@@ -448,7 +448,7 @@ int meta_write_d_entry(dentry_t *dentry,
+ 	mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_write_d_entry: \
+                                   ERROR opening meta file.\n");
+@@ -546,7 +546,7 @@ int meta_write_r_entry(dentry_t *dentry,
+ 	mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_write_r_entry: \
+                                   ERROR opening meta file.\n");
+@@ -686,7 +686,7 @@ int meta_sync_d_list(dentry_t *dentry, i
+ 	mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_d_list: \
+                                   ERROR opening meta file.\n");
+@@ -828,7 +828,7 @@ int meta_sync_r_list(dentry_t *dentry, i
+ 	mntget(meta_mnt);
+ 
+         /* open META-file for writing */
+-        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1);
++        meta_file = dentry_open(meta_dentry, meta_mnt, 0x1, current_cred());
+         if(!meta_file || IS_ERR(meta_file)) {
+                 printk(KERN_CRIT "mini_fo: meta_sync_r_list: \
+                                   ERROR opening meta file.\n");
diff --git a/target/linux/generic/patches-2.6.38/215-mini_fo_2.6.30.patch b/target/linux/generic/patches-2.6.38/215-mini_fo_2.6.30.patch
new file mode 100644
index 0000000000..2d20920614
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/215-mini_fo_2.6.30.patch
@@ -0,0 +1,157 @@
+--- a/fs/mini_fo/aux.c
++++ b/fs/mini_fo/aux.c
+@@ -86,8 +86,10 @@ int get_neg_sto_dentry(dentry_t *dentry)
+ 	len = dentry->d_name.len;
+ 	name = dentry->d_name.name;
+ 
++	mutex_lock(&dtohd2(dentry->d_parent)->d_inode->i_mutex);
+ 	dtohd2(dentry) =
+ 		lookup_one_len(name, dtohd2(dentry->d_parent), len);
++	mutex_unlock(&dtohd2(dentry->d_parent)->d_inode->i_mutex);
+ 
+  out:
+ 	return err;
+@@ -426,7 +428,9 @@ int build_sto_structure(dentry_t *dir, d
+ 		const unsigned char *name;
+ 		len = dtohd(dentry)->d_name.len;
+ 		name = dtohd(dentry)->d_name.name;
++		mutex_lock(&dtohd2(dir)->d_inode->i_mutex);
+ 		hidden_sto_dentry = lookup_one_len(name, dtohd2(dir), len);
++		mutex_unlock(&dtohd2(dir)->d_inode->i_mutex);
+ 		dtohd2(dentry) = hidden_sto_dentry;
+ 	}
+ 
+--- a/fs/mini_fo/inode.c
++++ b/fs/mini_fo/inode.c
+@@ -113,17 +113,23 @@ mini_fo_lookup(inode_t *dir, dentry_t *d
+ 		hidden_dir_dentry = hidden_dentry->d_parent;
+ 		kfree(bpath);
+ 	}
+-	else if(hidden_dir_dentry && hidden_dir_dentry->d_inode)
++	else if(hidden_dir_dentry && hidden_dir_dentry->d_inode) {
++		mutex_lock(&hidden_dir_dentry->d_inode->i_mutex);
+ 		hidden_dentry =
+ 			lookup_one_len(name, hidden_dir_dentry, namelen);
+-	else
++		mutex_unlock(&hidden_dir_dentry->d_inode->i_mutex);
++	} else {
+ 		hidden_dentry = NULL;
++	}
+ 
+-	if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode)
++	if(hidden_sto_dir_dentry && hidden_sto_dir_dentry->d_inode) {
++		mutex_lock(&hidden_sto_dir_dentry->d_inode->i_mutex);
+ 		hidden_sto_dentry =
+ 			lookup_one_len(name, hidden_sto_dir_dentry, namelen);
+-	else
++		mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
++	} else {
+ 		hidden_sto_dentry =  NULL;
++	}
+ 
+ 	/* catch error in lookup */
+ 	if (IS_ERR(hidden_dentry) || IS_ERR(hidden_sto_dentry)) {
+@@ -553,9 +559,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+ 
+ 		/* Delete an old WOL file contained in the storage dir */
++		mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+ 		meta_dentry = lookup_one_len(META_FILENAME,
+ 					     hidden_sto_dentry,
+ 					     strlen(META_FILENAME));
++		mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+ 		if(meta_dentry->d_inode) {
+ 			err = vfs_unlink(hidden_sto_dentry->d_inode, meta_dentry);
+ 			dput(meta_dentry);
+@@ -643,9 +651,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+ 
+ 		/* Delete an old WOL file contained in the storage dir */
++		mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+ 		meta_dentry = lookup_one_len(META_FILENAME,
+ 					     hidden_sto_dentry,
+ 					     strlen(META_FILENAME));
++		mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+ 		if(meta_dentry->d_inode) {
+ 			/* is this necessary? dget(meta_dentry); */
+ 			err = vfs_unlink(hidden_sto_dentry->d_inode,
+@@ -688,9 +698,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+ 
+ 		/* Delete an old WOL file contained in the storage dir */
++		mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+ 		meta_dentry = lookup_one_len(META_FILENAME,
+ 					     hidden_sto_dentry,
+ 					     strlen(META_FILENAME));
++		mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+ 		if(meta_dentry->d_inode) {
+ 			/* is this necessary? dget(meta_dentry); */
+ 			err = vfs_unlink(hidden_sto_dentry->d_inode,
+--- a/fs/mini_fo/meta.c
++++ b/fs/mini_fo/meta.c
+@@ -43,9 +43,11 @@ int meta_build_lists(dentry_t *dentry)
+ 
+   	/* might there be a META-file? */
+ 	if(dtohd2(dentry) && dtohd2(dentry)->d_inode) {
++		mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+ 		meta_dentry = lookup_one_len(META_FILENAME,
+ 					     dtohd2(dentry),
+ 					     strlen(META_FILENAME));
++		mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
+ 		if(!meta_dentry->d_inode) {
+ 			dput(meta_dentry);
+ 			goto out_ok;
+@@ -426,8 +428,11 @@ int meta_write_d_entry(dentry_t *dentry,
+ 			goto out;
+                 }
+         }
++
++	mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+ 	meta_dentry = lookup_one_len(META_FILENAME,
+ 				     dtohd2(dentry), strlen (META_FILENAME));
++	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
+ 
+ 	/* We need to create a META-file */
+         if(!meta_dentry->d_inode) {
+@@ -527,9 +532,13 @@ int meta_write_r_entry(dentry_t *dentry,
+ 			goto out;
+                 }
+         }
++
++	mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+ 	meta_dentry = lookup_one_len(META_FILENAME,
+ 				     dtohd2(dentry),
+ 				     strlen (META_FILENAME));
++	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+@@ -641,9 +650,13 @@ int meta_sync_d_list(dentry_t *dentry, i
+ 			goto out;
+                 }
+         }
++
++	mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+ 	meta_dentry = lookup_one_len(META_FILENAME,
+ 				     dtohd2(dentry),
+ 				     strlen(META_FILENAME));
++	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+@@ -784,9 +797,13 @@ int meta_sync_r_list(dentry_t *dentry, i
+ 			goto out;
+                 }
+         }
++
++	mutex_lock(&dtohd2(dentry)->d_inode->i_mutex);
+ 	meta_dentry = lookup_one_len(META_FILENAME,
+ 				     dtohd2(dentry),
+ 				     strlen(META_FILENAME));
++	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
diff --git a/target/linux/generic/patches-2.6.38/216-mini_fo_locking.patch b/target/linux/generic/patches-2.6.38/216-mini_fo_locking.patch
new file mode 100644
index 0000000000..4f075920fb
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/216-mini_fo_locking.patch
@@ -0,0 +1,25 @@
+--- a/fs/mini_fo/state.c
++++ b/fs/mini_fo/state.c
+@@ -537,17 +537,17 @@ int nondir_mod_to_del(dentry_t *dentry)
+ 	dtohd(dentry) = NULL;
+ 	dtost(dentry) = DELETED;
+ 
+-	/* add deleted file to META-file */
+-	meta_add_d_entry(dentry->d_parent,
+-			 dentry->d_name.name,
+-			 dentry->d_name.len);
+-
+ 	/* was: unlock_dir(hidden_sto_dir_dentry); */
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ 	mutex_unlock(&hidden_sto_dir_dentry->d_inode->i_mutex);
+ #else
+ 	up(&hidden_sto_dir_dentry->d_inode->i_sem);
+ #endif
++	/* add deleted file to META-file */
++	meta_add_d_entry(dentry->d_parent,
++			 dentry->d_name.name,
++			 dentry->d_name.len);
++
+ 	dput(hidden_sto_dir_dentry);
+ 
+  out:
diff --git a/target/linux/generic/patches-2.6.38/217-mini_fo_2.6.35.patch b/target/linux/generic/patches-2.6.38/217-mini_fo_2.6.35.patch
new file mode 100644
index 0000000000..61f54f0359
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/217-mini_fo_2.6.35.patch
@@ -0,0 +1,45 @@
+--- a/fs/mini_fo/file.c
++++ b/fs/mini_fo/file.c
+@@ -599,7 +599,7 @@ mini_fo_release(inode_t *inode, file_t *
+ }
+ 
+ STATIC int
+-mini_fo_fsync(file_t *file, dentry_t *dentry, int datasync)
++mini_fo_fsync(file_t *file, int datasync)
+ {
+ 	int err1 = 0;
+ 	int err2 = 0;
+@@ -609,14 +609,14 @@ mini_fo_fsync(file_t *file, dentry_t *de
+ 	check_mini_fo_file(file);
+ 
+ 	if ((hidden_file = ftohf(file)) != NULL) {
+-		hidden_dentry = dtohd(dentry);
++		hidden_dentry = dtohd(file->f_path.dentry);
+ 		if (hidden_file->f_op && hidden_file->f_op->fsync) {
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ 			mutex_lock(&hidden_dentry->d_inode->i_mutex);
+ #else
+ 			down(&hidden_dentry->d_inode->i_sem);
+ #endif
+-			err1 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
++			err1 = hidden_file->f_op->fsync(hidden_file, datasync);
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ 			mutex_unlock(&hidden_dentry->d_inode->i_mutex);
+ #else
+@@ -626,14 +626,14 @@ mini_fo_fsync(file_t *file, dentry_t *de
+ 	}
+ 
+ 	if ((hidden_file = ftohf2(file)) != NULL) {
+-		hidden_dentry = dtohd2(dentry);
++		hidden_dentry = dtohd2(file->f_path.dentry);
+ 		if (hidden_file->f_op && hidden_file->f_op->fsync) {
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ 			mutex_lock(&hidden_dentry->d_inode->i_mutex);
+ #else
+ 			down(&hidden_dentry->d_inode->i_sem);
+ #endif
+-			err2 = hidden_file->f_op->fsync(hidden_file, hidden_dentry, datasync);
++			err2 = hidden_file->f_op->fsync(hidden_file, datasync);
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
+ 			mutex_unlock(&hidden_dentry->d_inode->i_mutex);
+ #else
diff --git a/target/linux/generic/patches-2.6.38/217-mini_fo_2.6.36_fixes.patch b/target/linux/generic/patches-2.6.38/217-mini_fo_2.6.36_fixes.patch
new file mode 100644
index 0000000000..79024adbb7
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/217-mini_fo_2.6.36_fixes.patch
@@ -0,0 +1,43 @@
+--- a/fs/mini_fo/super.c
++++ b/fs/mini_fo/super.c
+@@ -76,7 +76,7 @@ mini_fo_read_inode(inode_t *inode)
+  * to write some of our own stuff to disk.
+  */
+ STATIC void
+-mini_fo_write_inode(inode_t *inode, int sync)
++mini_fo_write_inode(inode_t *inode, struct writeback_control *wbc)
+ {
+ 	print_entry_location();
+ 	print_exit_location();
+@@ -112,13 +112,14 @@ mini_fo_put_inode(inode_t *inode)
+  * on our and the lower inode.
+  */
+ STATIC void
+-mini_fo_delete_inode(inode_t *inode)
++mini_fo_evict_inode(inode_t *inode)
+ {
+ 	print_entry_location();
+ 
+-	fist_checkinode(inode, "mini_fo_delete_inode IN");
+-	inode->i_size = 0;		/* every f/s seems to do that */
+-	clear_inode(inode);
++	fist_checkinode(inode, "mini_fo_evict_inode IN");
++	truncate_inode_pages(&inode->i_data, 0); /* FIXME: do we need this? */
++	invalidate_inode_buffers(inode);
++	end_writeback(inode);
+ 
+ 	print_exit_location();
+ }
+@@ -300,11 +301,10 @@ struct super_operations mini_fo_sops =
+ 	put_inode:		mini_fo_put_inode,
+ #endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) */
+ #if defined(FIST_DEBUG) || defined(FIST_FILTER_SCA)
+-	delete_inode:	mini_fo_delete_inode,
++	evict_inode:	mini_fo_evict_inode,
+ #endif /* defined(FIST_DEBUG) || defined(FIST_FILTER_SCA) */
+ 	put_super:		mini_fo_put_super,
+ 	statfs:		mini_fo_statfs,
+ 	remount_fs:		mini_fo_remount_fs,
+-	clear_inode:	mini_fo_clear_inode,
+ 	umount_begin:	mini_fo_umount_begin,
+ };
diff --git a/target/linux/generic/patches-2.6.38/218-mini_fo_dentry_check.patch b/target/linux/generic/patches-2.6.38/218-mini_fo_dentry_check.patch
new file mode 100644
index 0000000000..cf53e4826f
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/218-mini_fo_dentry_check.patch
@@ -0,0 +1,48 @@
+--- a/fs/mini_fo/meta.c
++++ b/fs/mini_fo/meta.c
+@@ -48,6 +48,9 @@ int meta_build_lists(dentry_t *dentry)
+ 					     dtohd2(dentry),
+ 					     strlen(META_FILENAME));
+ 		mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++		if (IS_ERR(meta_dentry))
++			goto out_ok;
++
+ 		if(!meta_dentry->d_inode) {
+ 			dput(meta_dentry);
+ 			goto out_ok;
+@@ -433,6 +436,8 @@ int meta_write_d_entry(dentry_t *dentry,
+ 	meta_dentry = lookup_one_len(META_FILENAME,
+ 				     dtohd2(dentry), strlen (META_FILENAME));
+ 	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++	if (IS_ERR(meta_dentry))
++		return PTR_ERR(meta_dentry);
+ 
+ 	/* We need to create a META-file */
+         if(!meta_dentry->d_inode) {
+@@ -538,6 +543,8 @@ int meta_write_r_entry(dentry_t *dentry,
+ 				     dtohd2(dentry),
+ 				     strlen (META_FILENAME));
+ 	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++	if (IS_ERR(meta_dentry))
++		return PTR_ERR(meta_dentry);
+ 
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+@@ -656,6 +663,8 @@ int meta_sync_d_list(dentry_t *dentry, i
+ 				     dtohd2(dentry),
+ 				     strlen(META_FILENAME));
+ 	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++	if (IS_ERR(meta_dentry))
++		return PTR_ERR(meta_dentry);
+ 
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
+@@ -803,6 +812,8 @@ int meta_sync_r_list(dentry_t *dentry, i
+ 				     dtohd2(dentry),
+ 				     strlen(META_FILENAME));
+ 	mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
++	if (IS_ERR(meta_dentry))
++		return PTR_ERR(meta_dentry);
+ 
+         if(!meta_dentry->d_inode) {
+                 /* We need to create a META-file */
diff --git a/target/linux/generic/patches-2.6.38/219-kobject_uevent.patch b/target/linux/generic/patches-2.6.38/219-kobject_uevent.patch
new file mode 100644
index 0000000000..f15749fa17
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/219-kobject_uevent.patch
@@ -0,0 +1,32 @@
+--- a/lib/kobject_uevent.c
++++ b/lib/kobject_uevent.c
+@@ -49,6 +49,18 @@ static const char *kobject_actions[] = {
+ 	[KOBJ_OFFLINE] =	"offline",
+ };
+ 
++u64 uevent_next_seqnum(void)
++{
++	u64 seq;
++
++	spin_lock(&sequence_lock);
++	seq = ++uevent_seqnum;
++	spin_unlock(&sequence_lock);
++
++	return seq;
++}
++EXPORT_SYMBOL_GPL(uevent_next_seqnum);
++
+ /**
+  * kobject_action_type - translate action string to numeric type
+  *
+@@ -244,9 +256,7 @@ int kobject_uevent_env(struct kobject *k
+ 		kobj->state_remove_uevent_sent = 1;
+ 
+ 	/* we will send an event, so request a new sequence number */
+-	spin_lock(&sequence_lock);
+-	seq = ++uevent_seqnum;
+-	spin_unlock(&sequence_lock);
++	seq = uevent_next_seqnum();
+ 	retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)seq);
+ 	if (retval)
+ 		goto exit;
diff --git a/target/linux/generic/patches-2.6.38/220-sound_kconfig.patch b/target/linux/generic/patches-2.6.38/220-sound_kconfig.patch
new file mode 100644
index 0000000000..fb3df254dc
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/220-sound_kconfig.patch
@@ -0,0 +1,11 @@
+--- a/sound/core/Kconfig
++++ b/sound/core/Kconfig
+@@ -8,7 +8,7 @@ config SND_PCM
+ 	select GCD
+ 
+ config SND_HWDEP
+-	tristate
++	tristate "Sound hardware support"
+ 
+ config SND_RAWMIDI
+ 	tristate
diff --git a/target/linux/generic/patches-2.6.38/221-binfmt_elf_gcc4.1.patch b/target/linux/generic/patches-2.6.38/221-binfmt_elf_gcc4.1.patch
new file mode 100644
index 0000000000..b2aaca43d8
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/221-binfmt_elf_gcc4.1.patch
@@ -0,0 +1,11 @@
+--- a/fs/binfmt_elf.c
++++ b/fs/binfmt_elf.c
+@@ -1131,7 +1131,7 @@ static unsigned long vma_dump_size(struc
+ 	if (FILTER(ELF_HEADERS) &&
+ 	    vma->vm_pgoff == 0 && (vma->vm_flags & VM_READ)) {
+ 		u32 __user *header = (u32 __user *) vma->vm_start;
+-		u32 word;
++		u32 word = 0;
+ 		mm_segment_t fs = get_fs();
+ 		/*
+ 		 * Doing it this way gets the constant folded by GCC.
diff --git a/target/linux/generic/patches-2.6.38/222-partial_eraseblock_write.patch b/target/linux/generic/patches-2.6.38/222-partial_eraseblock_write.patch
new file mode 100644
index 0000000000..873c0d1cb1
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/222-partial_eraseblock_write.patch
@@ -0,0 +1,145 @@
+--- a/drivers/mtd/mtdpart.c
++++ b/drivers/mtd/mtdpart.c
+@@ -33,6 +33,8 @@
+ #include <linux/magic.h>
+ #include <linux/err.h>
+ 
++#define MTD_ERASE_PARTIAL	0x8000 /* partition only covers parts of an erase block */
++
+ /* Our partition linked list */
+ static LIST_HEAD(mtd_partitions);
+ static DEFINE_MUTEX(mtd_partitions_mutex);
+@@ -256,13 +258,60 @@ static int part_erase(struct mtd_info *m
+ 		return -EROFS;
+ 	if (instr->addr >= mtd->size)
+ 		return -EINVAL;
++
++	instr->partial_start = false;
++	if (mtd->flags & MTD_ERASE_PARTIAL) {
++		size_t readlen = 0;
++		u64 mtd_ofs;
++
++		instr->erase_buf = kmalloc(part->master->erasesize, GFP_ATOMIC);
++		if (!instr->erase_buf)
++			return -ENOMEM;
++
++		mtd_ofs = part->offset + instr->addr;
++		instr->erase_buf_ofs = do_div(mtd_ofs, part->master->erasesize);
++
++		if (instr->erase_buf_ofs > 0) {
++			instr->addr -= instr->erase_buf_ofs;
++			ret = part->master->read(part->master,
++				instr->addr + part->offset,
++				part->master->erasesize,
++				&readlen, instr->erase_buf);
++
++			instr->partial_start = true;
++		} else {
++			mtd_ofs = part->offset + part->mtd.size;
++			instr->erase_buf_ofs = part->master->erasesize -
++				do_div(mtd_ofs, part->master->erasesize);
++
++			if (instr->erase_buf_ofs > 0) {
++				instr->len += instr->erase_buf_ofs;
++				ret = part->master->read(part->master,
++					part->offset + instr->addr +
++					instr->len - part->master->erasesize,
++					part->master->erasesize, &readlen,
++					instr->erase_buf);
++			} else {
++				ret = 0;
++			}
++		}
++		if (ret < 0) {
++			kfree(instr->erase_buf);
++			return ret;
++		}
++
++	}
++
+ 	instr->addr += part->offset;
+ 	ret = part->master->erase(part->master, instr);
+ 	if (ret) {
+ 		if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
+ 			instr->fail_addr -= part->offset;
+ 		instr->addr -= part->offset;
++		if (mtd->flags & MTD_ERASE_PARTIAL)
++			kfree(instr->erase_buf);
+ 	}
++
+ 	return ret;
+ }
+ 
+@@ -270,7 +319,25 @@ void mtd_erase_callback(struct erase_inf
+ {
+ 	if (instr->mtd->erase == part_erase) {
+ 		struct mtd_part *part = PART(instr->mtd);
++		size_t wrlen = 0;
+ 
++		if (instr->mtd->flags & MTD_ERASE_PARTIAL) {
++			if (instr->partial_start) {
++				part->master->write(part->master,
++					instr->addr, instr->erase_buf_ofs,
++					&wrlen, instr->erase_buf);
++				instr->addr += instr->erase_buf_ofs;
++			} else {
++				instr->len -= instr->erase_buf_ofs;
++				part->master->write(part->master,
++					instr->addr + instr->len,
++					instr->erase_buf_ofs, &wrlen,
++					instr->erase_buf +
++					part->master->erasesize -
++					instr->erase_buf_ofs);
++			}
++			kfree(instr->erase_buf);
++		}
+ 		if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
+ 			instr->fail_addr -= part->offset;
+ 		instr->addr -= part->offset;
+@@ -529,18 +596,24 @@ static struct mtd_part *allocate_partiti
+ 	if ((slave->mtd.flags & MTD_WRITEABLE) &&
+ 	    mtd_mod_by_eb(slave->offset, &slave->mtd)) {
+ 		/* Doesn't start on a boundary of major erase size */
+-		/* FIXME: Let it be writable if it is on a boundary of
+-		 * _minor_ erase size though */
+-		slave->mtd.flags &= ~MTD_WRITEABLE;
+-		printk(KERN_WARNING"mtd: partition \"%s\" doesn't start on an erase block boundary -- force read-only\n",
+-			part->name);
++		slave->mtd.flags |= MTD_ERASE_PARTIAL;
++		if (((u32) slave->mtd.size) > master->erasesize)
++			slave->mtd.flags &= ~MTD_WRITEABLE;
++		else
++			slave->mtd.erasesize = slave->mtd.size;
+ 	}
+ 	if ((slave->mtd.flags & MTD_WRITEABLE) &&
+-	    mtd_mod_by_eb(slave->mtd.size, &slave->mtd)) {
+-		slave->mtd.flags &= ~MTD_WRITEABLE;
+-		printk(KERN_WARNING"mtd: partition \"%s\" doesn't end on an erase block -- force read-only\n",
+-			part->name);
++	    mtd_mod_by_eb(slave->offset + slave->mtd.size, &slave->mtd)) {
++		slave->mtd.flags |= MTD_ERASE_PARTIAL;
++
++		if ((u32) slave->mtd.size > master->erasesize)
++			slave->mtd.flags &= ~MTD_WRITEABLE;
++		else
++			slave->mtd.erasesize = slave->mtd.size;
+ 	}
++	if ((slave->mtd.flags & (MTD_ERASE_PARTIAL|MTD_WRITEABLE)) == MTD_ERASE_PARTIAL)
++		printk(KERN_WARNING"mtd: partition \"%s\" must either start or end on erase block boundary or be smaller than an erase block -- forcing read-only\n",
++				part->name);
+ 
+ 	slave->mtd.ecclayout = master->ecclayout;
+ 	if (master->block_isbad) {
+--- a/include/linux/mtd/mtd.h
++++ b/include/linux/mtd/mtd.h
+@@ -57,6 +57,10 @@ struct erase_info {
+ 	u_long priv;
+ 	u_char state;
+ 	struct erase_info *next;
++
++	u8 *erase_buf;
++	u32 erase_buf_ofs;
++	bool partial_start;
+ };
+ 
+ struct mtd_erase_region_info {
diff --git a/target/linux/generic/patches-2.6.38/223-kobject-add-broadcast_uevent.patch b/target/linux/generic/patches-2.6.38/223-kobject-add-broadcast_uevent.patch
new file mode 100644
index 0000000000..7b36ab6115
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/223-kobject-add-broadcast_uevent.patch
@@ -0,0 +1,85 @@
+--- a/include/linux/kobject.h
++++ b/include/linux/kobject.h
+@@ -31,6 +31,8 @@
+ #define UEVENT_NUM_ENVP			32	/* number of env pointers */
+ #define UEVENT_BUFFER_SIZE		2048	/* buffer for the variables */
+ 
++struct sk_buff;
++
+ /* path to the userspace helper executed on an event */
+ extern char uevent_helper[];
+ 
+@@ -215,6 +217,10 @@ int add_uevent_var(struct kobj_uevent_en
+ 
+ int kobject_action_type(const char *buf, size_t count,
+ 			enum kobject_action *type);
++
++int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
++		     gfp_t allocation);
++
+ #else
+ static inline int kobject_uevent(struct kobject *kobj,
+ 				 enum kobject_action action)
+@@ -231,6 +237,16 @@ static inline int add_uevent_var(struct
+ static inline int kobject_action_type(const char *buf, size_t count,
+ 				      enum kobject_action *type)
+ { return -EINVAL; }
++
++void kfree_skb(struct sk_buff *);
++
++static inline int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
++				   gfp_t allocation)
++{
++	kfree_skb(skb);
++	return 0;
++}
++
+ #endif
+ 
+ #endif /* _KOBJECT_H_ */
+--- a/lib/kobject_uevent.c
++++ b/lib/kobject_uevent.c
+@@ -377,6 +377,43 @@ int add_uevent_var(struct kobj_uevent_en
+ EXPORT_SYMBOL_GPL(add_uevent_var);
+ 
+ #if defined(CONFIG_NET)
++int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
++		     gfp_t allocation)
++{
++	struct uevent_sock *ue_sk;
++	int err = 0;
++
++	/* send netlink message */
++	mutex_lock(&uevent_sock_mutex);
++	list_for_each_entry(ue_sk, &uevent_sock_list, list) {
++		struct sock *uevent_sock = ue_sk->sk;
++		struct sk_buff *skb2;
++
++		skb2 = skb_clone(skb, allocation);
++		if (!skb2)
++			break;
++
++		err = netlink_broadcast(uevent_sock, skb2, pid, group,
++					allocation);
++		if (err)
++			break;
++	}
++	mutex_unlock(&uevent_sock_mutex);
++
++	kfree_skb(skb);
++	return err;
++}
++#else
++int broadcast_uevent(struct sk_buff *skb, __u32 pid, __u32 group,
++		     gfp_t allocation)
++{
++	kfree_skb(skb);
++	return 0;
++}
++#endif
++EXPORT_SYMBOL_GPL(broadcast_uevent);
++
++#if defined(CONFIG_NET)
+ static int uevent_net_init(struct net *net)
+ {
+ 	struct uevent_sock *ue_sk;
diff --git a/target/linux/generic/patches-2.6.38/240-packet_socket_type.patch b/target/linux/generic/patches-2.6.38/240-packet_socket_type.patch
new file mode 100644
index 0000000000..a8ad9171ec
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/240-packet_socket_type.patch
@@ -0,0 +1,132 @@
+This patch allows the user to specify desired packet types (outgoing,
+broadcast, unicast, etc.) on packet sockets via setsockopt.
+This can reduce the load in situations where only a limited number
+of packet types are necessary
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
+--- a/include/linux/if_packet.h
++++ b/include/linux/if_packet.h
+@@ -29,6 +29,8 @@ struct sockaddr_ll {
+ /* These ones are invisible by user level */
+ #define PACKET_LOOPBACK		5		/* MC/BRD frame looped back */
+ #define PACKET_FASTROUTE	6		/* Fastrouted frame	*/
++#define PACKET_MASK_ANY		0xffffffff	/* mask for packet type bits */
++
+ 
+ /* Packet socket options */
+ 
+@@ -49,6 +51,7 @@ struct sockaddr_ll {
+ #define PACKET_VNET_HDR			15
+ #define PACKET_TX_TIMESTAMP		16
+ #define PACKET_TIMESTAMP		17
++#define PACKET_RECV_TYPE		18
+ 
+ struct tpacket_stats {
+ 	unsigned int	tp_packets;
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -211,6 +211,7 @@ struct packet_sock {
+ 	unsigned int		tp_loss:1;
+ 	unsigned int		tp_tstamp;
+ 	struct packet_type	prot_hook ____cacheline_aligned_in_smp;
++	unsigned int		pkt_type;
+ };
+ 
+ struct packet_skb_cb {
+@@ -355,6 +356,7 @@ static int packet_rcv_spkt(struct sk_buf
+ {
+ 	struct sock *sk;
+ 	struct sockaddr_pkt *spkt;
++	struct packet_sock *po;
+ 
+ 	/*
+ 	 *	When we registered the protocol we saved the socket in the data
+@@ -362,6 +364,7 @@ static int packet_rcv_spkt(struct sk_buf
+ 	 */
+ 
+ 	sk = pt->af_packet_priv;
++	po = pkt_sk(sk);
+ 
+ 	/*
+ 	 *	Yank back the headers [hope the device set this
+@@ -374,7 +377,7 @@ static int packet_rcv_spkt(struct sk_buf
+ 	 *	so that this procedure is noop.
+ 	 */
+ 
+-	if (skb->pkt_type == PACKET_LOOPBACK)
++	if (!(po->pkt_type & (1 << skb->pkt_type)))
+ 		goto out;
+ 
+ 	if (!net_eq(dev_net(dev), sock_net(sk)))
+@@ -554,12 +557,12 @@ static int packet_rcv(struct sk_buff *sk
+ 	int skb_len = skb->len;
+ 	unsigned int snaplen, res;
+ 
+-	if (skb->pkt_type == PACKET_LOOPBACK)
+-		goto drop;
+-
+ 	sk = pt->af_packet_priv;
+ 	po = pkt_sk(sk);
+ 
++	if (!(po->pkt_type & (1 << skb->pkt_type)))
++		goto drop;
++
+ 	if (!net_eq(dev_net(dev), sock_net(sk)))
+ 		goto drop;
+ 
+@@ -675,12 +678,12 @@ static int tpacket_rcv(struct sk_buff *s
+ 	struct timespec ts;
+ 	struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
+ 
+-	if (skb->pkt_type == PACKET_LOOPBACK)
+-		goto drop;
+-
+ 	sk = pt->af_packet_priv;
+ 	po = pkt_sk(sk);
+ 
++	if (!(po->pkt_type & (1 << skb->pkt_type)))
++		goto drop;
++
+ 	if (!net_eq(dev_net(dev), sock_net(sk)))
+ 		goto drop;
+ 
+@@ -1500,6 +1503,7 @@ static int packet_create(struct net *net
+ 	spin_lock_init(&po->bind_lock);
+ 	mutex_init(&po->pg_vec_lock);
+ 	po->prot_hook.func = packet_rcv;
++	po->pkt_type = PACKET_MASK_ANY & ~(1 << PACKET_LOOPBACK);
+ 
+ 	if (sock->type == SOCK_PACKET)
+ 		po->prot_hook.func = packet_rcv_spkt;
+@@ -2068,6 +2072,16 @@ packet_setsockopt(struct socket *sock, i
+ 		po->tp_tstamp = val;
+ 		return 0;
+ 	}
++        case PACKET_RECV_TYPE:
++        {
++                unsigned int val;
++                if (optlen != sizeof(val))
++                        return -EINVAL;
++                if (copy_from_user(&val, optval, sizeof(val)))
++                        return -EFAULT;
++                po->pkt_type = val & ~PACKET_LOOPBACK;
++                return 0;
++        }
+ 	default:
+ 		return -ENOPROTOOPT;
+ 	}
+@@ -2125,6 +2139,13 @@ static int packet_getsockopt(struct sock
+ 
+ 		data = &val;
+ 		break;
++	case PACKET_RECV_TYPE:
++		if (len > sizeof(unsigned int))
++			len = sizeof(unsigned int);
++		val = po->pkt_type;
++
++		data = &val;
++		break;
+ 	case PACKET_VERSION:
+ 		if (len > sizeof(int))
+ 			len = sizeof(int);
diff --git a/target/linux/generic/patches-2.6.38/250-pppoe_header_pad.patch b/target/linux/generic/patches-2.6.38/250-pppoe_header_pad.patch
new file mode 100644
index 0000000000..4875d5f23f
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/250-pppoe_header_pad.patch
@@ -0,0 +1,20 @@
+--- a/drivers/net/pppoe.c
++++ b/drivers/net/pppoe.c
+@@ -855,7 +855,7 @@ static int pppoe_sendmsg(struct kiocb *i
+ 		goto end;
+ 
+ 
+-	skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32,
++	skb = sock_wmalloc(sk, total_len + dev->hard_header_len + 32 + NET_SKB_PAD,
+ 			   0, GFP_KERNEL);
+ 	if (!skb) {
+ 		error = -ENOMEM;
+@@ -863,7 +863,7 @@ static int pppoe_sendmsg(struct kiocb *i
+ 	}
+ 
+ 	/* Reserve space for headers. */
+-	skb_reserve(skb, dev->hard_header_len);
++	skb_reserve(skb, dev->hard_header_len + NET_SKB_PAD);
+ 	skb_reset_network_header(skb);
+ 
+ 	skb->dev = dev;
diff --git a/target/linux/generic/patches-2.6.38/260-crypto_optional_tests.patch b/target/linux/generic/patches-2.6.38/260-crypto_optional_tests.patch
new file mode 100644
index 0000000000..e1a1588fe0
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/260-crypto_optional_tests.patch
@@ -0,0 +1,64 @@
+--- a/crypto/Kconfig
++++ b/crypto/Kconfig
+@@ -108,6 +108,10 @@ config CRYPTO_MANAGER_DISABLE_TESTS
+ 	  Disable run-time self tests that normally take place at
+ 	  algorithm registration.
+ 
++config CRYPTO_MANAGER_NO_TESTS
++	bool "Disable internal testsuite to save space"
++	depends on CRYPTO_MANAGER
++
+ config CRYPTO_GF128MUL
+ 	tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
+ 	help
+--- a/crypto/testmgr.c
++++ b/crypto/testmgr.c
+@@ -65,6 +65,8 @@ int alg_test(const char *driver, const c
+ #define ENCRYPT 1
+ #define DECRYPT 0
+ 
++#ifndef CONFIG_CRYPTO_MANAGER_NO_TESTS
++
+ struct tcrypt_result {
+ 	struct completion completion;
+ 	int err;
+@@ -2508,8 +2510,11 @@ static int alg_find_test(const char *alg
+ 	return -1;
+ }
+ 
++#endif /* CONFIG_CRYPTO_MANAGER_NO_TESTS */
++
+ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
+ {
++#ifndef CONFIG_CRYPTO_MANAGER_NO_TESTS
+ 	int i;
+ 	int j;
+ 	int rc;
+@@ -2564,6 +2569,9 @@ notest:
+ 	return 0;
+ non_fips_alg:
+ 	return -EINVAL;
++#else /* CONFIG_CRYPTO_MANAGER_NO_TESTS */
++	return 0;
++#endif /* CONFIG_CRYPTO_MANAGER_NO_TESTS */
+ }
+ 
+ #endif /* CONFIG_CRYPTO_MANAGER_DISABLE_TESTS */
+--- a/crypto/testmgr.h
++++ b/crypto/testmgr.h
+@@ -29,6 +29,8 @@
+ 
+ #include <crypto/compress.h>
+ 
++#ifndef CONFIG_CRYPTO_MANAGER_NO_TESTS
++
+ #define MAX_DIGEST_SIZE		64
+ #define MAX_TAP			8
+ 
+@@ -9969,4 +9971,6 @@ static struct hash_testvec crc32c_tv_tem
+ 	},
+ };
+ 
++#endif /* CONFIG_CRYPTO_MANAGER_NO_TESTS */
++
+ #endif	/* _CRYPTO_TESTMGR_H */
diff --git a/target/linux/generic/patches-2.6.38/310-usb-add-usb_find_device_by_name.patch b/target/linux/generic/patches-2.6.38/310-usb-add-usb_find_device_by_name.patch
new file mode 100644
index 0000000000..d225150c90
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/310-usb-add-usb_find_device_by_name.patch
@@ -0,0 +1,84 @@
+--- a/drivers/usb/core/usb.c
++++ b/drivers/usb/core/usb.c
+@@ -646,6 +646,71 @@ int __usb_get_extra_descriptor(char *buf
+ }
+ EXPORT_SYMBOL_GPL(__usb_get_extra_descriptor);
+ 
++static struct usb_device *match_device_name(struct usb_device *dev,
++					    const char *name)
++{
++	struct usb_device *ret_dev = NULL;
++	int child;
++
++	dev_dbg(&dev->dev, "check for name %s ...\n", name);
++
++	/* see if this device matches */
++	if (strcmp(dev_name(&dev->dev), name) == 0 ) {
++		dev_dbg(&dev->dev, "matched this device!\n");
++		ret_dev = usb_get_dev(dev);
++		goto exit;
++	}
++
++	/* look through all of the children of this device */
++	for (child = 0; child < dev->maxchild; ++child) {
++		if (dev->children[child]) {
++			usb_lock_device(dev->children[child]);
++			ret_dev = match_device_name(dev->children[child], name);
++			usb_unlock_device(dev->children[child]);
++			if (ret_dev)
++				goto exit;
++		}
++	}
++exit:
++	return ret_dev;
++}
++
++/**
++ * usb_find_device_by_name - find a specific usb device in the system
++ * @name: the name of the device to find
++ *
++ * Returns a pointer to a struct usb_device if such a specified usb
++ * device is present in the system currently.  The usage count of the
++ * device will be incremented if a device is found.  Make sure to call
++ * usb_put_dev() when the caller is finished with the device.
++ *
++ * If a device with the specified bus id is not found, NULL is returned.
++ */
++struct usb_device *usb_find_device_by_name(const char *name)
++{
++	struct list_head *buslist;
++	struct usb_bus *bus;
++	struct usb_device *dev = NULL;
++
++	mutex_lock(&usb_bus_list_lock);
++	for (buslist = usb_bus_list.next;
++	     buslist != &usb_bus_list;
++	     buslist = buslist->next) {
++		bus = container_of(buslist, struct usb_bus, bus_list);
++		if (!bus->root_hub)
++			continue;
++		usb_lock_device(bus->root_hub);
++		dev = match_device_name(bus->root_hub, name);
++		usb_unlock_device(bus->root_hub);
++		if (dev)
++			goto exit;
++	}
++exit:
++	mutex_unlock(&usb_bus_list_lock);
++	return dev;
++}
++EXPORT_SYMBOL_GPL(usb_find_device_by_name);
++
+ /**
+  * usb_alloc_coherent - allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP
+  * @dev: device the buffer will be used with
+--- a/include/linux/usb.h
++++ b/include/linux/usb.h
+@@ -513,6 +513,7 @@ extern int usb_lock_device_for_reset(str
+ extern int usb_reset_device(struct usb_device *dev);
+ extern void usb_queue_reset_device(struct usb_interface *dev);
+ 
++extern struct usb_device *usb_find_device_by_name(const char *name);
+ 
+ /* USB autosuspend and autoresume */
+ #ifdef CONFIG_USB_SUSPEND
diff --git a/target/linux/generic/patches-2.6.38/400-ledtrig_morse.patch b/target/linux/generic/patches-2.6.38/400-ledtrig_morse.patch
new file mode 100644
index 0000000000..8d90184556
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/400-ledtrig_morse.patch
@@ -0,0 +1,18 @@
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -439,4 +439,8 @@ config LEDS_TRIGGER_DEFAULT_ON
+ comment "iptables trigger is under Netfilter config (LED target)"
+ 	depends on LEDS_TRIGGERS
+ 
++config LEDS_TRIGGER_MORSE
++	tristate "LED Morse Trigger"
++	depends on LEDS_TRIGGERS
++
+ endif # NEW_LEDS
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -52,3 +52,4 @@ obj-$(CONFIG_LEDS_TRIGGER_HEARTBEAT)	+=
+ obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT)	+= ledtrig-backlight.o
+ obj-$(CONFIG_LEDS_TRIGGER_GPIO)		+= ledtrig-gpio.o
+ obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON)	+= ledtrig-default-on.o
++obj-$(CONFIG_LEDS_TRIGGER_MORSE)	+= ledtrig-morse.o
diff --git a/target/linux/generic/patches-2.6.38/402-ledtrig_netdev.patch b/target/linux/generic/patches-2.6.38/402-ledtrig_netdev.patch
new file mode 100644
index 0000000000..6406adac2a
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/402-ledtrig_netdev.patch
@@ -0,0 +1,43 @@
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -443,4 +443,11 @@ config LEDS_TRIGGER_MORSE
+ 	tristate "LED Morse Trigger"
+ 	depends on LEDS_TRIGGERS
+ 
++config LEDS_TRIGGER_NETDEV
++	tristate "LED Netdev Trigger"
++	depends on NET && LEDS_TRIGGERS
++	help
++	  This allows LEDs to be controlled by network device activity.
++	  If unsure, say Y.
++
+ endif # NEW_LEDS
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -53,3 +53,4 @@ obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT)	+=
+ obj-$(CONFIG_LEDS_TRIGGER_GPIO)		+= ledtrig-gpio.o
+ obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON)	+= ledtrig-default-on.o
+ obj-$(CONFIG_LEDS_TRIGGER_MORSE)	+= ledtrig-morse.o
++obj-$(CONFIG_LEDS_TRIGGER_NETDEV)	+= ledtrig-netdev.o
+--- a/drivers/leds/ledtrig-netdev.c
++++ b/drivers/leds/ledtrig-netdev.c
+@@ -307,8 +307,9 @@ done:
+ static void netdev_trig_timer(unsigned long arg)
+ {
+ 	struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg;
+-	const struct net_device_stats *dev_stats;
++	struct rtnl_link_stats64 *dev_stats;
+ 	unsigned new_activity;
++	struct rtnl_link_stats64 temp;
+ 
+ 	write_lock(&trigger_data->lock);
+ 
+@@ -318,7 +319,7 @@ static void netdev_trig_timer(unsigned l
+ 		goto no_restart;
+ 	}
+ 
+-	dev_stats = dev_get_stats(trigger_data->net_dev);
++	dev_stats = dev_get_stats(trigger_data->net_dev, &temp);
+ 	new_activity =
+ 		((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) +
+ 		((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0);
diff --git a/target/linux/generic/patches-2.6.38/403-ledtrig-usbdev.patch b/target/linux/generic/patches-2.6.38/403-ledtrig-usbdev.patch
new file mode 100644
index 0000000000..25c6745f68
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/403-ledtrig-usbdev.patch
@@ -0,0 +1,21 @@
+--- a/drivers/leds/Kconfig
++++ b/drivers/leds/Kconfig
+@@ -450,4 +450,11 @@ config LEDS_TRIGGER_NETDEV
+ 	  This allows LEDs to be controlled by network device activity.
+ 	  If unsure, say Y.
+ 
++config LEDS_TRIGGER_USBDEV
++	tristate "LED USB device Trigger"
++	depends on USB && LEDS_TRIGGERS
++	help
++	  This allows LEDs to be controlled by the presence/activity of
++	  an USB device. If unsure, say N.
++
+ endif # NEW_LEDS
+--- a/drivers/leds/Makefile
++++ b/drivers/leds/Makefile
+@@ -54,3 +54,4 @@ obj-$(CONFIG_LEDS_TRIGGER_GPIO)		+= ledt
+ obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON)	+= ledtrig-default-on.o
+ obj-$(CONFIG_LEDS_TRIGGER_MORSE)	+= ledtrig-morse.o
+ obj-$(CONFIG_LEDS_TRIGGER_NETDEV)	+= ledtrig-netdev.o
++obj-$(CONFIG_LEDS_TRIGGER_USBDEV)	+= ledtrig-usbdev.o
diff --git a/target/linux/generic/patches-2.6.38/410-gpio_buttons.patch b/target/linux/generic/patches-2.6.38/410-gpio_buttons.patch
new file mode 100644
index 0000000000..23fa95319b
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/410-gpio_buttons.patch
@@ -0,0 +1,31 @@
+--- a/drivers/input/misc/Kconfig
++++ b/drivers/input/misc/Kconfig
+@@ -454,4 +454,20 @@ config INPUT_CMA3000_I2C
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called cma3000_d0x_i2c.
+ 
++config INPUT_GPIO_BUTTONS
++	tristate "Polled GPIO buttons interface"
++	depends on GENERIC_GPIO
++	select INPUT_POLLDEV
++	help
++	  This driver implements support for buttons connected
++	  to GPIO pins of various CPUs (and some other chips).
++
++	  Say Y here if your device has buttons connected
++	  directly to such GPIO pins.  Your board-specific
++	  setup logic must also provide a platform device,
++	  with configuration data saying which GPIOs are used.
++
++	  To compile this driver as a module, choose M here: the
++	  module will be called gpio-buttons.
++
+ endif
+--- a/drivers/input/misc/Makefile
++++ b/drivers/input/misc/Makefile
+@@ -43,4 +43,5 @@ obj-$(CONFIG_INPUT_UINPUT)		+= uinput.o
+ obj-$(CONFIG_INPUT_WISTRON_BTNS)	+= wistron_btns.o
+ obj-$(CONFIG_INPUT_WM831X_ON)		+= wm831x-on.o
+ obj-$(CONFIG_INPUT_YEALINK)		+= yealink.o
++obj-$(CONFIG_INPUT_GPIO_BUTTONS)	+= gpio_buttons.o
+ 
diff --git a/target/linux/generic/patches-2.6.38/411-gpio_ioctl.patch b/target/linux/generic/patches-2.6.38/411-gpio_ioctl.patch
new file mode 100644
index 0000000000..3b7063223e
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/411-gpio_ioctl.patch
@@ -0,0 +1,11 @@
+--- a/drivers/char/gpio_dev.c
++++ b/drivers/char/gpio_dev.c
+@@ -114,7 +114,7 @@ gpio_close(struct inode * inode, struct
+ }
+ 
+ struct file_operations gpio_fops = {
+-	ioctl:		gpio_ioctl,
++	unlocked_ioctl:	gpio_ioctl,
+ 	open:		gpio_open,
+ 	release:	gpio_close
+ };
diff --git a/target/linux/generic/patches-2.6.38/420-gpiodev.patch b/target/linux/generic/patches-2.6.38/420-gpiodev.patch
new file mode 100644
index 0000000000..6aa65c9256
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/420-gpiodev.patch
@@ -0,0 +1,27 @@
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -1047,6 +1047,14 @@ config NSC_GPIO
+ 	  pc8736x_gpio drivers.  If those drivers are built as
+ 	  modules, this one will be too, named nsc_gpio
+ 
++config GPIO_DEVICE
++	tristate "GPIO device support"
++	depends on GENERIC_GPIO
++	help
++	  Say Y to enable Linux GPIO device support.  This allows control of
++	  GPIO pins using a character device
++
++
+ config RAW_DRIVER
+ 	tristate "RAW driver (/dev/raw/rawN)"
+ 	depends on BLOCK
+--- a/drivers/char/Makefile
++++ b/drivers/char/Makefile
+@@ -82,6 +82,7 @@ obj-$(CONFIG_NWFLASH)		+= nwflash.o
+ obj-$(CONFIG_SCx200_GPIO)	+= scx200_gpio.o
+ obj-$(CONFIG_PC8736x_GPIO)	+= pc8736x_gpio.o
+ obj-$(CONFIG_NSC_GPIO)		+= nsc_gpio.o
++obj-$(CONFIG_GPIO_DEVICE)	+= gpio_dev.o
+ obj-$(CONFIG_GPIO_TB0219)	+= tb0219.o
+ obj-$(CONFIG_TELCLOCK)		+= tlclk.o
+ 
diff --git a/target/linux/generic/patches-2.6.38/510-yaffs_support.patch b/target/linux/generic/patches-2.6.38/510-yaffs_support.patch
new file mode 100644
index 0000000000..e7c87b8b13
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/510-yaffs_support.patch
@@ -0,0 +1,18 @@
+--- a/fs/Kconfig
++++ b/fs/Kconfig
+@@ -35,6 +35,7 @@ source "fs/gfs2/Kconfig"
+ source "fs/ocfs2/Kconfig"
+ source "fs/btrfs/Kconfig"
+ source "fs/nilfs2/Kconfig"
++source "fs/yaffs2/Kconfig"
+ 
+ endif # BLOCK
+ 
+--- a/fs/Makefile
++++ b/fs/Makefile
+@@ -122,3 +122,5 @@ obj-$(CONFIG_BTRFS_FS)		+= btrfs/
+ obj-$(CONFIG_GFS2_FS)           += gfs2/
+ obj-$(CONFIG_EXOFS_FS)          += exofs/
+ obj-$(CONFIG_CEPH_FS)		+= ceph/
++obj-$(CONFIG_YAFFS_FS)		+= yaffs2/
++
diff --git a/target/linux/generic/patches-2.6.38/511-yaffs-cvs-2009-04-24.patch b/target/linux/generic/patches-2.6.38/511-yaffs-cvs-2009-04-24.patch
new file mode 100644
index 0000000000..c334b17d08
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/511-yaffs-cvs-2009-04-24.patch
@@ -0,0 +1,12344 @@
+--- a/fs/yaffs2/devextras.h
++++ b/fs/yaffs2/devextras.h
+@@ -14,194 +14,135 @@
+  */
+ 
+ /*
+- * This file is just holds extra declarations used during development.
+- * Most of these are from kernel includes placed here so we can use them in
+- * applications.
++ * This file is just holds extra declarations of macros that would normally
++ * be providesd in the Linux kernel. These macros have been written from
++ * scratch but are functionally equivalent to the Linux ones.
+  *
+  */
+ 
+ #ifndef __EXTRAS_H__
+ #define __EXTRAS_H__
+ 
+-#if defined WIN32
+-#define __inline__ __inline
+-#define new newHack
+-#endif
+-
+-#if !(defined __KERNEL__) || (defined WIN32)
+ 
+-/* User space defines */
++#if !(defined __KERNEL__)
+ 
++/* Definition of types */
+ typedef unsigned char __u8;
+ typedef unsigned short __u16;
+ typedef unsigned __u32;
+ 
++#endif
++
+ /*
+- * Simple doubly linked list implementation.
+- *
+- * Some of the internal functions ("__xxx") are useful when
+- * manipulating whole lists rather than single entries, as
+- * sometimes we already know the next/prev entries and we can
+- * generate better code by using them directly rather than
+- * using the generic single-entry routines.
++ * This is a simple doubly linked list implementation that matches the
++ * way the Linux kernel doubly linked list implementation works.
+  */
+ 
+-#define prefetch(x) 1
+-
+-struct list_head {
+-	struct list_head *next, *prev;
++struct ylist_head {
++	struct ylist_head *next; /* next in chain */
++	struct ylist_head *prev; /* previous in chain */
+ };
+ 
+-#define LIST_HEAD_INIT(name) { &(name), &(name) }
+ 
+-#define LIST_HEAD(name) \
+-	struct list_head name = LIST_HEAD_INIT(name)
++/* Initialise a static list */
++#define YLIST_HEAD(name) \
++struct ylist_head name = { &(name), &(name)}
++
+ 
+-#define INIT_LIST_HEAD(ptr) do { \
+-	(ptr)->next = (ptr); (ptr)->prev = (ptr); \
++
++/* Initialise a list head to an empty list */
++#define YINIT_LIST_HEAD(p) \
++do { \
++	(p)->next = (p);\
++	(p)->prev = (p); \
+ } while (0)
+ 
+-/*
+- * Insert a new entry between two known consecutive entries.
+- *
+- * This is only for internal list manipulation where we know
+- * the prev/next entries already!
+- */
+-static __inline__ void __list_add(struct list_head *new,
+-				  struct list_head *prev,
+-				  struct list_head *next)
+-{
+-	next->prev = new;
+-	new->next = next;
+-	new->prev = prev;
+-	prev->next = new;
+-}
+ 
+-/**
+- * list_add - add a new entry
+- * @new: new entry to be added
+- * @head: list head to add it after
+- *
+- * Insert a new entry after the specified head.
+- * This is good for implementing stacks.
+- */
+-static __inline__ void list_add(struct list_head *new, struct list_head *head)
++/* Add an element to a list */
++static __inline__ void ylist_add(struct ylist_head *newEntry,
++				struct ylist_head *list)
+ {
+-	__list_add(new, head, head->next);
+-}
++	struct ylist_head *listNext = list->next;
++
++	list->next = newEntry;
++	newEntry->prev = list;
++	newEntry->next = listNext;
++	listNext->prev = newEntry;
+ 
+-/**
+- * list_add_tail - add a new entry
+- * @new: new entry to be added
+- * @head: list head to add it before
+- *
+- * Insert a new entry before the specified head.
+- * This is useful for implementing queues.
+- */
+-static __inline__ void list_add_tail(struct list_head *new,
+-				     struct list_head *head)
+-{
+-	__list_add(new, head->prev, head);
+ }
+ 
+-/*
+- * Delete a list entry by making the prev/next entries
+- * point to each other.
+- *
+- * This is only for internal list manipulation where we know
+- * the prev/next entries already!
+- */
+-static __inline__ void __list_del(struct list_head *prev,
+-				  struct list_head *next)
++static __inline__ void ylist_add_tail(struct ylist_head *newEntry,
++				 struct ylist_head *list)
+ {
+-	next->prev = prev;
+-	prev->next = next;
++	struct ylist_head *listPrev = list->prev;
++
++	list->prev = newEntry;
++	newEntry->next = list;
++	newEntry->prev = listPrev;
++	listPrev->next = newEntry;
++
+ }
+ 
+-/**
+- * list_del - deletes entry from list.
+- * @entry: the element to delete from the list.
+- * Note: list_empty on entry does not return true after this, the entry is
+- * in an undefined state.
+- */
+-static __inline__ void list_del(struct list_head *entry)
++
++/* Take an element out of its current list, with or without
++ * reinitialising the links.of the entry*/
++static __inline__ void ylist_del(struct ylist_head *entry)
+ {
+-	__list_del(entry->prev, entry->next);
++	struct ylist_head *listNext = entry->next;
++	struct ylist_head *listPrev = entry->prev;
++
++	listNext->prev = listPrev;
++	listPrev->next = listNext;
++
+ }
+ 
+-/**
+- * list_del_init - deletes entry from list and reinitialize it.
+- * @entry: the element to delete from the list.
+- */
+-static __inline__ void list_del_init(struct list_head *entry)
++static __inline__ void ylist_del_init(struct ylist_head *entry)
+ {
+-	__list_del(entry->prev, entry->next);
+-	INIT_LIST_HEAD(entry);
++	ylist_del(entry);
++	entry->next = entry->prev = entry;
+ }
+ 
+-/**
+- * list_empty - tests whether a list is empty
+- * @head: the list to test.
+- */
+-static __inline__ int list_empty(struct list_head *head)
++
++/* Test if the list is empty */
++static __inline__ int ylist_empty(struct ylist_head *entry)
+ {
+-	return head->next == head;
++	return (entry->next == entry);
+ }
+ 
+-/**
+- * list_splice - join two lists
+- * @list: the new list to add.
+- * @head: the place to add it in the first list.
++
++/* ylist_entry takes a pointer to a list entry and offsets it to that
++ * we can find a pointer to the object it is embedded in.
+  */
+-static __inline__ void list_splice(struct list_head *list,
+-				   struct list_head *head)
+-{
+-	struct list_head *first = list->next;
+ 
+-	if (first != list) {
+-		struct list_head *last = list->prev;
+-		struct list_head *at = head->next;
+-
+-		first->prev = head;
+-		head->next = first;
+-
+-		last->next = at;
+-		at->prev = last;
+-	}
+-}
+ 
+-/**
+- * list_entry - get the struct for this entry
+- * @ptr:	the &struct list_head pointer.
+- * @type:	the type of the struct this is embedded in.
+- * @member:	the name of the list_struct within the struct.
+- */
+-#define list_entry(ptr, type, member) \
+-	((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+-
+-/**
+- * list_for_each	-	iterate over a list
+- * @pos:	the &struct list_head to use as a loop counter.
+- * @head:	the head for your list.
+- */
+-#define list_for_each(pos, head) \
+-	for (pos = (head)->next, prefetch(pos->next); pos != (head); \
+-        	pos = pos->next, prefetch(pos->next))
+-
+-/**
+- * list_for_each_safe	-	iterate over a list safe against removal
+- *                              of list entry
+- * @pos:	the &struct list_head to use as a loop counter.
+- * @n:		another &struct list_head to use as temporary storage
+- * @head:	the head for your list.
+- */
+-#define list_for_each_safe(pos, n, head) \
+-	for (pos = (head)->next, n = pos->next; pos != (head); \
+-		pos = n, n = pos->next)
++#define ylist_entry(entry, type, member) \
++	((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member)))
+ 
+-/*
+- * File types
++
++/* ylist_for_each and list_for_each_safe  iterate over lists.
++ * ylist_for_each_safe uses temporary storage to make the list delete safe
+  */
++
++#define ylist_for_each(itervar, list) \
++	for (itervar = (list)->next; itervar != (list); itervar = itervar->next)
++
++#define ylist_for_each_safe(itervar, saveVar, list) \
++	for (itervar = (list)->next, saveVar = (list)->next->next; \
++		itervar != (list); itervar = saveVar, saveVar = saveVar->next)
++
++
++#if !(defined __KERNEL__)
++
++
++#ifndef WIN32
++#include <sys/stat.h>
++#endif
++
++
++#ifdef CONFIG_YAFFS_PROVIDE_DEFS
++/* File types */
++
++
+ #define DT_UNKNOWN	0
+ #define DT_FIFO		1
+ #define DT_CHR		2
+@@ -212,6 +153,7 @@ static __inline__ void list_splice(struc
+ #define DT_SOCK		12
+ #define DT_WHT		14
+ 
++
+ #ifndef WIN32
+ #include <sys/stat.h>
+ #endif
+@@ -227,10 +169,6 @@ static __inline__ void list_splice(struc
+ #define ATTR_ATIME	16
+ #define ATTR_MTIME	32
+ #define ATTR_CTIME	64
+-#define ATTR_ATIME_SET	128
+-#define ATTR_MTIME_SET	256
+-#define ATTR_FORCE	512	/* Not a change, but a change it */
+-#define ATTR_ATTR_FLAG	1024
+ 
+ struct iattr {
+ 	unsigned int ia_valid;
+@@ -244,21 +182,15 @@ struct iattr {
+ 	unsigned int ia_attr_flags;
+ };
+ 
+-#define KERN_DEBUG
++#endif
+ 
+ #else
+ 
+-#ifndef WIN32
+ #include <linux/types.h>
+-#include <linux/list.h>
+ #include <linux/fs.h>
+ #include <linux/stat.h>
+-#endif
+ 
+ #endif
+ 
+-#if defined WIN32
+-#undef new
+-#endif
+ 
+ #endif
+--- a/fs/yaffs2/Kconfig
++++ b/fs/yaffs2/Kconfig
+@@ -5,7 +5,7 @@
+ config YAFFS_FS
+ 	tristate "YAFFS2 file system support"
+ 	default n
+-	depends on MTD
++	depends on MTD_BLOCK
+ 	select YAFFS_YAFFS1
+ 	select YAFFS_YAFFS2
+ 	help
+@@ -43,7 +43,8 @@ config YAFFS_9BYTE_TAGS
+ 	  format that you need to continue to support.  New data written
+ 	  also uses the older-style format.  Note: Use of this option
+ 	  generally requires that MTD's oob layout be adjusted to use the
+-	  older-style format.  See notes on tags formats and MTD versions.
++	  older-style format.  See notes on tags formats and MTD versions
++	  in yaffs_mtdif1.c.
+ 
+ 	  If unsure, say N.
+ 
+@@ -109,26 +110,6 @@ config YAFFS_DISABLE_LAZY_LOAD
+ 
+ 	  If unsure, say N.
+ 
+-config YAFFS_CHECKPOINT_RESERVED_BLOCKS
+-	int "Reserved blocks for checkpointing"
+-	depends on YAFFS_YAFFS2
+-	default 10
+-	help
+-          Give the number of Blocks to reserve for checkpointing.
+-	  Checkpointing saves the state at unmount so that mounting is
+-	  much faster as a scan of all the flash to regenerate this state
+-	  is not needed.  These Blocks are reserved per partition, so if
+-	  you have very small partitions the default (10) may be a mess
+-	  for you.  You can set this value to 0, but that does not mean
+-	  checkpointing is disabled at all. There only won't be any
+-	  specially reserved blocks for checkpointing, so if there is
+-	  enough free space on the filesystem, it will be used for
+-	  checkpointing.
+-
+-	  If unsure, leave at default (10), but don't wonder if there are
+-	  always 2MB used on your large page device partition (10 x 2k
+-	  pagesize). When using small partitions or when being very small
+-	  on space, you probably want to set this to zero.
+ 
+ config YAFFS_DISABLE_WIDE_TNODES
+ 	bool "Turn off wide tnodes"
+--- a/fs/yaffs2/Makefile
++++ b/fs/yaffs2/Makefile
+@@ -5,7 +5,6 @@
+ obj-$(CONFIG_YAFFS_FS) += yaffs.o
+ 
+ yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o
+-yaffs-y += yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o
++yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o
+ yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o
+-yaffs-y += yaffs_mtdif1.o yaffs_packedtags1.o
+-yaffs-y += yaffs_mtdif.o yaffs_mtdif2.o
++yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o
+--- a/fs/yaffs2/moduleconfig.h
++++ b/fs/yaffs2/moduleconfig.h
+@@ -27,12 +27,12 @@
+ 
+ /* Default: Not selected */
+ /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */
+-//#define CONFIG_YAFFS_DOES_ECC
++/* #define CONFIG_YAFFS_DOES_ECC */
+ 
+ /* Default: Not selected */
+ /* Meaning: ECC byte order is 'wrong'.  Only meaningful if */
+ /*          CONFIG_YAFFS_DOES_ECC is set */
+-//#define CONFIG_YAFFS_ECC_WRONG_ORDER
++/* #define CONFIG_YAFFS_ECC_WRONG_ORDER */
+ 
+ /* Default: Selected */
+ /* Meaning: Disables testing whether chunks are erased before writing to them*/
+@@ -54,11 +54,11 @@ that you need to continue to support.  N
+ older-style format.
+ Note: Use of this option generally requires that MTD's oob layout be
+ adjusted to use the older-style format.  See notes on tags formats and
+-MTD versions.
++MTD versions in yaffs_mtdif1.c.
+ */
+ /* Default: Not selected */
+ /* Meaning: Use older-style on-NAND data format with pageStatus byte */
+-#define CONFIG_YAFFS_9BYTE_TAGS
++/* #define CONFIG_YAFFS_9BYTE_TAGS */
+ 
+ #endif /* YAFFS_OUT_OF_TREE */
+ 
+--- a/fs/yaffs2/yaffs_checkptrw.c
++++ b/fs/yaffs2/yaffs_checkptrw.c
+@@ -12,48 +12,43 @@
+  */
+ 
+ const char *yaffs_checkptrw_c_version =
+-    "$Id: yaffs_checkptrw.c,v 1.14 2007-05-15 20:07:40 charles Exp $";
++	"$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $";
+ 
+ 
+ #include "yaffs_checkptrw.h"
+-
++#include "yaffs_getblockinfo.h"
+ 
+ static int yaffs_CheckpointSpaceOk(yaffs_Device *dev)
+ {
+-
+ 	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
+ 
+ 	T(YAFFS_TRACE_CHECKPOINT,
+ 		(TSTR("checkpt blocks available = %d" TENDSTR),
+ 		blocksAvailable));
+ 
+-
+ 	return (blocksAvailable <= 0) ? 0 : 1;
+ }
+ 
+ 
+ static int yaffs_CheckpointErase(yaffs_Device *dev)
+ {
+-
+ 	int i;
+ 
+-
+-	if(!dev->eraseBlockInNAND)
++	if (!dev->eraseBlockInNAND)
+ 		return 0;
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR),
+-		dev->internalStartBlock,dev->internalEndBlock));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR),
++		dev->internalStartBlock, dev->internalEndBlock));
+ 
+-	for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
+-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
+-		if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){
+-			T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i));
+-			if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){
++	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
++		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
++		if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) {
++			T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i));
++			if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) {
+ 				bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
+ 				dev->nErasedBlocks++;
+ 				dev->nFreeChunks += dev->nChunksPerBlock;
+-			}
+-			else {
+-				dev->markNANDBlockBad(dev,i);
++			} else {
++				dev->markNANDBlockBad(dev, i);
+ 				bi->blockState = YAFFS_BLOCK_STATE_DEAD;
+ 			}
+ 		}
+@@ -71,23 +66,23 @@ static void yaffs_CheckpointFindNextEras
+ 	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
+ 	T(YAFFS_TRACE_CHECKPOINT,
+ 		(TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR),
+-		dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock));
++		dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock));
+ 
+-	if(dev->checkpointNextBlock >= 0 &&
+-	   dev->checkpointNextBlock <= dev->internalEndBlock &&
+-	   blocksAvailable > 0){
+-
+-		for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){
+-			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
+-			if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){
++	if (dev->checkpointNextBlock >= 0 &&
++			dev->checkpointNextBlock <= dev->internalEndBlock &&
++			blocksAvailable > 0) {
++
++		for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) {
++			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
++			if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) {
+ 				dev->checkpointNextBlock = i + 1;
+ 				dev->checkpointCurrentBlock = i;
+-				T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i));
++				T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i));
+ 				return;
+ 			}
+ 		}
+ 	}
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR)));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR)));
+ 
+ 	dev->checkpointNextBlock = -1;
+ 	dev->checkpointCurrentBlock = -1;
+@@ -98,30 +93,31 @@ static void yaffs_CheckpointFindNextChec
+ 	int  i;
+ 	yaffs_ExtendedTags tags;
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start:  blocks %d next %d" TENDSTR),
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start:  blocks %d next %d" TENDSTR),
+ 		dev->blocksInCheckpoint, dev->checkpointNextBlock));
+ 
+-	if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks)
+-		for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){
++	if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks)
++		for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) {
+ 			int chunk = i * dev->nChunksPerBlock;
+ 			int realignedChunk = chunk - dev->chunkOffset;
+ 
+-			dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags);
+-			T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR),
+-				i, tags.objectId,tags.sequenceNumber,tags.eccResult));
++			dev->readChunkWithTagsFromNAND(dev, realignedChunk,
++					NULL, &tags);
++			T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR),
++				i, tags.objectId, tags.sequenceNumber, tags.eccResult));
+ 
+-			if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){
++			if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) {
+ 				/* Right kind of block */
+ 				dev->checkpointNextBlock = tags.objectId;
+ 				dev->checkpointCurrentBlock = i;
+ 				dev->checkpointBlockList[dev->blocksInCheckpoint] = i;
+ 				dev->blocksInCheckpoint++;
+-				T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i));
++				T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i));
+ 				return;
+ 			}
+ 		}
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR)));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR)));
+ 
+ 	dev->checkpointNextBlock = -1;
+ 	dev->checkpointCurrentBlock = -1;
+@@ -133,17 +129,17 @@ int yaffs_CheckpointOpen(yaffs_Device *d
+ 
+ 	/* Got the functions we need? */
+ 	if (!dev->writeChunkWithTagsToNAND ||
+-	    !dev->readChunkWithTagsFromNAND ||
+-	    !dev->eraseBlockInNAND ||
+-	    !dev->markNANDBlockBad)
++			!dev->readChunkWithTagsFromNAND ||
++			!dev->eraseBlockInNAND ||
++			!dev->markNANDBlockBad)
+ 		return 0;
+ 
+-	if(forWriting && !yaffs_CheckpointSpaceOk(dev))
++	if (forWriting && !yaffs_CheckpointSpaceOk(dev))
+ 		return 0;
+ 
+-	if(!dev->checkpointBuffer)
+-		dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk);
+-	if(!dev->checkpointBuffer)
++	if (!dev->checkpointBuffer)
++		dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk);
++	if (!dev->checkpointBuffer)
+ 		return 0;
+ 
+ 
+@@ -159,12 +155,10 @@ int yaffs_CheckpointOpen(yaffs_Device *d
+ 	dev->checkpointNextBlock = dev->internalStartBlock;
+ 
+ 	/* Erase all the blocks in the checkpoint area */
+-	if(forWriting){
+-		memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk);
++	if (forWriting) {
++		memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk);
+ 		dev->checkpointByteOffset = 0;
+ 		return yaffs_CheckpointErase(dev);
+-
+-
+ 	} else {
+ 		int i;
+ 		/* Set to a value that will kick off a read */
+@@ -174,7 +168,7 @@ int yaffs_CheckpointOpen(yaffs_Device *d
+ 		dev->blocksInCheckpoint = 0;
+ 		dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2;
+ 		dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks);
+-		for(i = 0; i < dev->checkpointMaxBlocks; i++)
++		for (i = 0; i < dev->checkpointMaxBlocks; i++)
+ 			dev->checkpointBlockList[i] = -1;
+ 	}
+ 
+@@ -191,18 +185,17 @@ int yaffs_GetCheckpointSum(yaffs_Device
+ 
+ static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
+ {
+-
+ 	int chunk;
+ 	int realignedChunk;
+ 
+ 	yaffs_ExtendedTags tags;
+ 
+-	if(dev->checkpointCurrentBlock < 0){
++	if (dev->checkpointCurrentBlock < 0) {
+ 		yaffs_CheckpointFindNextErasedBlock(dev);
+ 		dev->checkpointCurrentChunk = 0;
+ 	}
+ 
+-	if(dev->checkpointCurrentBlock < 0)
++	if (dev->checkpointCurrentBlock < 0)
+ 		return 0;
+ 
+ 	tags.chunkDeleted = 0;
+@@ -210,10 +203,10 @@ static int yaffs_CheckpointFlushBuffer(y
+ 	tags.chunkId = dev->checkpointPageSequence + 1;
+ 	tags.sequenceNumber =  YAFFS_SEQUENCE_CHECKPOINT_DATA;
+ 	tags.byteCount = dev->nDataBytesPerChunk;
+-	if(dev->checkpointCurrentChunk == 0){
++	if (dev->checkpointCurrentChunk == 0) {
+ 		/* First chunk we write for the block? Set block state to
+ 		   checkpoint */
+-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointCurrentBlock);
++		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock);
+ 		bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
+ 		dev->blocksInCheckpoint++;
+ 	}
+@@ -221,28 +214,29 @@ static int yaffs_CheckpointFlushBuffer(y
+ 	chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
+ 
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
+-		chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
++		chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId));
+ 
+ 	realignedChunk = chunk - dev->chunkOffset;
+ 
+-	dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags);
++	dev->writeChunkWithTagsToNAND(dev, realignedChunk,
++			dev->checkpointBuffer, &tags);
+ 	dev->checkpointByteOffset = 0;
+ 	dev->checkpointPageSequence++;
+ 	dev->checkpointCurrentChunk++;
+-	if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){
++	if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) {
+ 		dev->checkpointCurrentChunk = 0;
+ 		dev->checkpointCurrentBlock = -1;
+ 	}
+-	memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk);
++	memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk);
+ 
+ 	return 1;
+ }
+ 
+ 
+-int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes)
++int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes)
+ {
+-	int i=0;
++	int i = 0;
+ 	int ok = 1;
+ 
+ 
+@@ -250,17 +244,14 @@ int yaffs_CheckpointWrite(yaffs_Device *
+ 
+ 
+ 
+-	if(!dev->checkpointBuffer)
++	if (!dev->checkpointBuffer)
+ 		return 0;
+ 
+-	if(!dev->checkpointOpenForWrite)
++	if (!dev->checkpointOpenForWrite)
+ 		return -1;
+ 
+-	while(i < nBytes && ok) {
+-
+-
+-
+-		dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ;
++	while (i < nBytes && ok) {
++		dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes;
+ 		dev->checkpointSum += *dataBytes;
+ 		dev->checkpointXor ^= *dataBytes;
+ 
+@@ -270,18 +261,17 @@ int yaffs_CheckpointWrite(yaffs_Device *
+ 		dev->checkpointByteCount++;
+ 
+ 
+-		if(dev->checkpointByteOffset < 0 ||
++		if (dev->checkpointByteOffset < 0 ||
+ 		   dev->checkpointByteOffset >= dev->nDataBytesPerChunk)
+ 			ok = yaffs_CheckpointFlushBuffer(dev);
+-
+ 	}
+ 
+-	return 	i;
++	return i;
+ }
+ 
+ int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes)
+ {
+-	int i=0;
++	int i = 0;
+ 	int ok = 1;
+ 	yaffs_ExtendedTags tags;
+ 
+@@ -291,52 +281,54 @@ int yaffs_CheckpointRead(yaffs_Device *d
+ 
+ 	__u8 *dataBytes = (__u8 *)data;
+ 
+-	if(!dev->checkpointBuffer)
++	if (!dev->checkpointBuffer)
+ 		return 0;
+ 
+-	if(dev->checkpointOpenForWrite)
++	if (dev->checkpointOpenForWrite)
+ 		return -1;
+ 
+-	while(i < nBytes && ok) {
++	while (i < nBytes && ok) {
+ 
+ 
+-		if(dev->checkpointByteOffset < 0 ||
+-		   dev->checkpointByteOffset >= dev->nDataBytesPerChunk) {
++		if (dev->checkpointByteOffset < 0 ||
++			dev->checkpointByteOffset >= dev->nDataBytesPerChunk) {
+ 
+-		   	if(dev->checkpointCurrentBlock < 0){
++			if (dev->checkpointCurrentBlock < 0) {
+ 				yaffs_CheckpointFindNextCheckpointBlock(dev);
+ 				dev->checkpointCurrentChunk = 0;
+ 			}
+ 
+-			if(dev->checkpointCurrentBlock < 0)
++			if (dev->checkpointCurrentBlock < 0)
+ 				ok = 0;
+ 			else {
+-
+-				chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock +
+-				          dev->checkpointCurrentChunk;
++				chunk = dev->checkpointCurrentBlock *
++					dev->nChunksPerBlock +
++					dev->checkpointCurrentChunk;
+ 
+ 				realignedChunk = chunk - dev->chunkOffset;
+ 
+-	   			/* read in the next chunk */
+-	   			/* printf("read checkpoint page %d\n",dev->checkpointPage); */
+-				dev->readChunkWithTagsFromNAND(dev, realignedChunk,
+-							       dev->checkpointBuffer,
+-							      &tags);
+-
+-				if(tags.chunkId != (dev->checkpointPageSequence + 1) ||
+-				   tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA)
+-				   ok = 0;
++				/* read in the next chunk */
++				/* printf("read checkpoint page %d\n",dev->checkpointPage); */
++				dev->readChunkWithTagsFromNAND(dev,
++						realignedChunk,
++						dev->checkpointBuffer,
++						&tags);
++
++				if (tags.chunkId != (dev->checkpointPageSequence + 1) ||
++					tags.eccResult > YAFFS_ECC_RESULT_FIXED ||
++					tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA)
++					ok = 0;
+ 
+ 				dev->checkpointByteOffset = 0;
+ 				dev->checkpointPageSequence++;
+ 				dev->checkpointCurrentChunk++;
+ 
+-				if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock)
++				if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock)
+ 					dev->checkpointCurrentBlock = -1;
+ 			}
+ 		}
+ 
+-		if(ok){
++		if (ok) {
+ 			*dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset];
+ 			dev->checkpointSum += *dataBytes;
+ 			dev->checkpointXor ^= *dataBytes;
+@@ -353,17 +345,17 @@ int yaffs_CheckpointRead(yaffs_Device *d
+ int yaffs_CheckpointClose(yaffs_Device *dev)
+ {
+ 
+-	if(dev->checkpointOpenForWrite){
+-		if(dev->checkpointByteOffset != 0)
++	if (dev->checkpointOpenForWrite) {
++		if (dev->checkpointByteOffset != 0)
+ 			yaffs_CheckpointFlushBuffer(dev);
+ 	} else {
+ 		int i;
+-		for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){
+-			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]);
+-			if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
++		for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) {
++			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]);
++			if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
+ 				bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
+ 			else {
+-				// Todo this looks odd...
++				/* Todo this looks odd... */
+ 			}
+ 		}
+ 		YFREE(dev->checkpointBlockList);
+@@ -374,27 +366,25 @@ int yaffs_CheckpointClose(yaffs_Device *
+ 	dev->nErasedBlocks -= dev->blocksInCheckpoint;
+ 
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR),
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR),
+ 			dev->checkpointByteCount));
+ 
+-	if(dev->checkpointBuffer){
++	if (dev->checkpointBuffer) {
+ 		/* free the buffer */
+ 		YFREE(dev->checkpointBuffer);
+ 		dev->checkpointBuffer = NULL;
+ 		return 1;
+-	}
+-	else
++	} else
+ 		return 0;
+-
+ }
+ 
+ int yaffs_CheckpointInvalidateStream(yaffs_Device *dev)
+ {
+ 	/* Erase the first checksum block */
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR)));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR)));
+ 
+-	if(!yaffs_CheckpointSpaceOk(dev))
++	if (!yaffs_CheckpointSpaceOk(dev))
+ 		return 0;
+ 
+ 	return yaffs_CheckpointErase(dev);
+--- a/fs/yaffs2/yaffs_checkptrw.h
++++ b/fs/yaffs2/yaffs_checkptrw.h
+@@ -20,9 +20,9 @@
+ 
+ int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting);
+ 
+-int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes);
++int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes);
+ 
+-int yaffs_CheckpointRead(yaffs_Device *dev,void *data, int nBytes);
++int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes);
+ 
+ int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum);
+ 
+--- a/fs/yaffs2/yaffs_ecc.c
++++ b/fs/yaffs2/yaffs_ecc.c
+@@ -29,7 +29,7 @@
+  */
+ 
+ const char *yaffs_ecc_c_version =
+-    "$Id: yaffs_ecc.c,v 1.9 2007-02-14 01:09:06 wookey Exp $";
++	"$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $";
+ 
+ #include "yportenv.h"
+ 
+@@ -109,12 +109,10 @@ void yaffs_ECCCalculate(const unsigned c
+ 		b = column_parity_table[*data++];
+ 		col_parity ^= b;
+ 
+-		if (b & 0x01)	// odd number of bits in the byte
+-		{
++		if (b & 0x01) {		/* odd number of bits in the byte */
+ 			line_parity ^= i;
+ 			line_parity_prime ^= ~i;
+ 		}
+-
+ 	}
+ 
+ 	ecc[2] = (~col_parity) | 0x03;
+@@ -158,7 +156,7 @@ void yaffs_ECCCalculate(const unsigned c
+ 	ecc[0] = ~t;
+ 
+ #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
+-	// Swap the bytes into the wrong order
++	/* Swap the bytes into the wrong order */
+ 	t = ecc[0];
+ 	ecc[0] = ecc[1];
+ 	ecc[1] = t;
+@@ -189,7 +187,7 @@ int yaffs_ECCCorrect(unsigned char *data
+ 		unsigned bit;
+ 
+ #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
+-		// swap the bytes to correct for the wrong order
++		/* swap the bytes to correct for the wrong order */
+ 		unsigned char t;
+ 
+ 		t = d0;
+@@ -251,7 +249,7 @@ int yaffs_ECCCorrect(unsigned char *data
+  * ECCxxxOther does ECC calcs on arbitrary n bytes of data
+  */
+ void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
+-			     yaffs_ECCOther * eccOther)
++				yaffs_ECCOther *eccOther)
+ {
+ 	unsigned int i;
+ 
+@@ -278,8 +276,8 @@ void yaffs_ECCCalculateOther(const unsig
+ }
+ 
+ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
+-			  yaffs_ECCOther * read_ecc,
+-			  const yaffs_ECCOther * test_ecc)
++			yaffs_ECCOther *read_ecc,
++			const yaffs_ECCOther *test_ecc)
+ {
+ 	unsigned char cDelta;	/* column parity delta */
+ 	unsigned lDelta;	/* line parity delta */
+@@ -294,8 +292,7 @@ int yaffs_ECCCorrectOther(unsigned char
+ 		return 0; /* no error */
+ 
+ 	if (lDelta == ~lDeltaPrime &&
+-	    (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15))
+-	{
++	    (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) {
+ 		/* Single bit (recoverable) error in data */
+ 
+ 		bit = 0;
+@@ -307,7 +304,7 @@ int yaffs_ECCCorrectOther(unsigned char
+ 		if (cDelta & 0x02)
+ 			bit |= 0x01;
+ 
+-		if(lDelta >= nBytes)
++		if (lDelta >= nBytes)
+ 			return -1;
+ 
+ 		data[lDelta] ^= (1 << bit);
+@@ -316,7 +313,7 @@ int yaffs_ECCCorrectOther(unsigned char
+ 	}
+ 
+ 	if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) +
+-	     yaffs_CountBits(cDelta)) == 1) {
++			yaffs_CountBits(cDelta)) == 1) {
+ 		/* Reccoverable error in ecc */
+ 
+ 		*read_ecc = *test_ecc;
+@@ -326,6 +323,4 @@ int yaffs_ECCCorrectOther(unsigned char
+ 	/* Unrecoverable error */
+ 
+ 	return -1;
+-
+ }
+-
+--- a/fs/yaffs2/yaffs_ecc.h
++++ b/fs/yaffs2/yaffs_ecc.h
+@@ -13,15 +13,15 @@
+  * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
+  */
+ 
+- /*
+-  * This code implements the ECC algorithm used in SmartMedia.
+-  *
+-  * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
+-  * The two unused bit are set to 1.
+-  * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
+-  * blocks are used on a 512-byte NAND page.
+-  *
+-  */
++/*
++ * This code implements the ECC algorithm used in SmartMedia.
++ *
++ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes.
++ * The two unused bit are set to 1.
++ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC
++ * blocks are used on a 512-byte NAND page.
++ *
++ */
+ 
+ #ifndef __YAFFS_ECC_H__
+ #define __YAFFS_ECC_H__
+@@ -34,11 +34,11 @@ typedef struct {
+ 
+ void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc);
+ int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
+-		     const unsigned char *test_ecc);
++		const unsigned char *test_ecc);
+ 
+ void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
+-			     yaffs_ECCOther * ecc);
++			yaffs_ECCOther *ecc);
+ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
+-			  yaffs_ECCOther * read_ecc,
+-			  const yaffs_ECCOther * test_ecc);
++			yaffs_ECCOther *read_ecc,
++			const yaffs_ECCOther *test_ecc);
+ #endif
+--- a/fs/yaffs2/yaffs_fs.c
++++ b/fs/yaffs2/yaffs_fs.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2009 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -32,18 +32,17 @@
+  */
+ 
+ const char *yaffs_fs_c_version =
+-    "$Id: yaffs_fs.c,v 1.63 2007-09-19 20:35:40 imcd Exp $";
++    "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $";
+ extern const char *yaffs_guts_c_version;
+ 
+ #include <linux/version.h>
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+ #include <linux/config.h>
+ #endif
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/slab.h>
+ #include <linux/init.h>
+-#include <linux/list.h>
+ #include <linux/fs.h>
+ #include <linux/proc_fs.h>
+ #include <linux/smp_lock.h>
+@@ -53,10 +52,12 @@ extern const char *yaffs_guts_c_version;
+ #include <linux/string.h>
+ #include <linux/ctype.h>
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#include "asm/div64.h"
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 
+ #include <linux/statfs.h>	/* Added NCB 15-8-2003 */
+-#include <asm/statfs.h>
++#include <linux/statfs.h>
+ #define UnlockPage(p) unlock_page(p)
+ #define Page_Uptodate(page)	test_bit(PG_uptodate, &(page)->flags)
+ 
+@@ -69,22 +70,45 @@ extern const char *yaffs_guts_c_version;
+ #define	BDEVNAME_SIZE		0
+ #define	yaffs_devname(sb, buf)	kdevname(sb->s_dev)
+ 
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0))
+ /* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
+ #define __user
+ #endif
+ 
+ #endif
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
++#define YPROC_ROOT  (&proc_root)
++#else
++#define YPROC_ROOT  NULL
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ #define WRITE_SIZE_STR "writesize"
+-#define WRITE_SIZE(mtd) (mtd)->writesize
++#define WRITE_SIZE(mtd) ((mtd)->writesize)
+ #else
+ #define WRITE_SIZE_STR "oobblock"
+-#define WRITE_SIZE(mtd) (mtd)->oobblock
++#define WRITE_SIZE(mtd) ((mtd)->oobblock)
+ #endif
+ 
+-#include <asm/uaccess.h>
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27))
++#define YAFFS_USE_WRITE_BEGIN_END 1
++#else
++#define YAFFS_USE_WRITE_BEGIN_END 0
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
++static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
++{
++	uint64_t result = partition_size;
++	do_div(result, block_size);
++	return (uint32_t)result;
++}
++#else
++#define YCALCBLOCKS(s, b) ((s)/(b))
++#endif
++
++#include <linux/uaccess.h>
+ 
+ #include "yportenv.h"
+ #include "yaffs_guts.h"
+@@ -96,28 +120,44 @@ extern const char *yaffs_guts_c_version;
+ 
+ unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS;
+ unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
++unsigned int yaffs_auto_checkpoint = 1;
+ 
+ /* Module Parameters */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+-module_param(yaffs_traceMask,uint,0644);
+-module_param(yaffs_wr_attempts,uint,0644);
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++module_param(yaffs_traceMask, uint, 0644);
++module_param(yaffs_wr_attempts, uint, 0644);
++module_param(yaffs_auto_checkpoint, uint, 0644);
++#else
++MODULE_PARM(yaffs_traceMask, "i");
++MODULE_PARM(yaffs_wr_attempts, "i");
++MODULE_PARM(yaffs_auto_checkpoint, "i");
++#endif
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
++/* use iget and read_inode */
++#define Y_IGET(sb, inum) iget((sb), (inum))
++static void yaffs_read_inode(struct inode *inode);
++
+ #else
+-MODULE_PARM(yaffs_traceMask,"i");
+-MODULE_PARM(yaffs_wr_attempts,"i");
++/* Call local equivalent */
++#define YAFFS_USE_OWN_IGET
++#define Y_IGET(sb, inum) yaffs_iget((sb), (inum))
++
++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino);
+ #endif
+ 
+ /*#define T(x) printk x */
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18))
+-#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
++#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private)
+ #else
+-#define yaffs_InodeToObjectLV(iptr) (iptr)->u.generic_ip
++#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip)
+ #endif
+ 
+ #define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr)))
+ #define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode)
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ #define yaffs_SuperToDevice(sb)	((yaffs_Device *)sb->s_fs_info)
+ #else
+ #define yaffs_SuperToDevice(sb)	((yaffs_Device *)sb->u.generic_sbp)
+@@ -126,47 +166,49 @@ MODULE_PARM(yaffs_wr_attempts,"i");
+ static void yaffs_put_super(struct super_block *sb);
+ 
+ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
+-				loff_t * pos);
++				loff_t *pos);
++static ssize_t yaffs_hold_space(struct file *f);
++static void yaffs_release_space(struct file *f);
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs_file_flush(struct file *file, fl_owner_t id);
+ #else
+ static int yaffs_file_flush(struct file *file);
+ #endif
+ 
+ static int yaffs_sync_object(struct file *file, struct dentry *dentry,
+-			     int datasync);
++				int datasync);
+ 
+ static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir);
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
+ 			struct nameidata *n);
+ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
+-				   struct nameidata *n);
++					struct nameidata *n);
+ #else
+ static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
+ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry);
+ #endif
+ static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
+-		      struct dentry *dentry);
++			struct dentry *dentry);
+ static int yaffs_unlink(struct inode *dir, struct dentry *dentry);
+ static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
+-			 const char *symname);
++			const char *symname);
+ static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-		       dev_t dev);
++			dev_t dev);
+ #else
+ static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-		       int dev);
++			int dev);
+ #endif
+ static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
+ 			struct inode *new_dir, struct dentry *new_dentry);
+ static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs_sync_fs(struct super_block *sb, int wait);
+ static void yaffs_write_super(struct super_block *sb);
+ #else
+@@ -174,33 +216,47 @@ static int yaffs_sync_fs(struct super_bl
+ static int yaffs_write_super(struct super_block *sb);
+ #endif
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf);
+-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
+ #else
+ static int yaffs_statfs(struct super_block *sb, struct statfs *buf);
+ #endif
+-static void yaffs_read_inode(struct inode *inode);
+ 
++#ifdef YAFFS_HAS_PUT_INODE
+ static void yaffs_put_inode(struct inode *inode);
++#endif
++
+ static void yaffs_delete_inode(struct inode *);
+ static void yaffs_clear_inode(struct inode *);
+ 
+ static int yaffs_readpage(struct file *file, struct page *page);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_writepage(struct page *page, struct writeback_control *wbc);
+ #else
+ static int yaffs_writepage(struct page *page);
+ #endif
++
++
++#if (YAFFS_USE_WRITE_BEGIN_END != 0)
++static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned flags,
++				struct page **pagep, void **fsdata);
++static int yaffs_write_end(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned copied,
++				struct page *pg, void *fsdadata);
++#else
+ static int yaffs_prepare_write(struct file *f, struct page *pg,
+-			       unsigned offset, unsigned to);
++				unsigned offset, unsigned to);
+ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
+-			      unsigned to);
++				unsigned to);
+ 
+-static int yaffs_readlink(struct dentry *dentry, char __user * buffer,
+-			  int buflen);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
++#endif
++
++static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
++				int buflen);
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
+ static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
+ #else
+ static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
+@@ -209,12 +265,17 @@ static int yaffs_follow_link(struct dent
+ static struct address_space_operations yaffs_file_address_operations = {
+ 	.readpage = yaffs_readpage,
+ 	.writepage = yaffs_writepage,
++#if (YAFFS_USE_WRITE_BEGIN_END > 0)
++	.write_begin = yaffs_write_begin,
++	.write_end = yaffs_write_end,
++#else
+ 	.prepare_write = yaffs_prepare_write,
+ 	.commit_write = yaffs_commit_write,
++#endif
+ };
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22))
+-static struct file_operations yaffs_file_operations = {
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
++static const struct file_operations yaffs_file_operations = {
+ 	.read = do_sync_read,
+ 	.write = do_sync_write,
+ 	.aio_read = generic_file_aio_read,
+@@ -224,11 +285,12 @@ static struct file_operations yaffs_file
+ 	.fsync = yaffs_sync_object,
+ 	.splice_read = generic_file_splice_read,
+ 	.splice_write = generic_file_splice_write,
++	.llseek = generic_file_llseek,
+ };
+ 
+-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18))
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
+ 
+-static struct file_operations yaffs_file_operations = {
++static const struct file_operations yaffs_file_operations = {
+ 	.read = do_sync_read,
+ 	.write = do_sync_write,
+ 	.aio_read = generic_file_aio_read,
+@@ -241,29 +303,29 @@ static struct file_operations yaffs_file
+ 
+ #else
+ 
+-static struct file_operations yaffs_file_operations = {
++static const struct file_operations yaffs_file_operations = {
+ 	.read = generic_file_read,
+ 	.write = generic_file_write,
+ 	.mmap = generic_file_mmap,
+ 	.flush = yaffs_file_flush,
+ 	.fsync = yaffs_sync_object,
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 	.sendfile = generic_file_sendfile,
+ #endif
+ };
+ #endif
+ 
+-static struct inode_operations yaffs_file_inode_operations = {
++static const struct inode_operations yaffs_file_inode_operations = {
+ 	.setattr = yaffs_setattr,
+ };
+ 
+-static struct inode_operations yaffs_symlink_inode_operations = {
++static const struct inode_operations yaffs_symlink_inode_operations = {
+ 	.readlink = yaffs_readlink,
+ 	.follow_link = yaffs_follow_link,
+ 	.setattr = yaffs_setattr,
+ };
+ 
+-static struct inode_operations yaffs_dir_inode_operations = {
++static const struct inode_operations yaffs_dir_inode_operations = {
+ 	.create = yaffs_create,
+ 	.lookup = yaffs_lookup,
+ 	.link = yaffs_link,
+@@ -276,16 +338,21 @@ static struct inode_operations yaffs_dir
+ 	.setattr = yaffs_setattr,
+ };
+ 
+-static struct file_operations yaffs_dir_operations = {
++static const struct file_operations yaffs_dir_operations = {
+ 	.read = generic_read_dir,
+ 	.readdir = yaffs_readdir,
+ 	.fsync = yaffs_sync_object,
+ };
+ 
+-static struct super_operations yaffs_super_ops = {
++static const struct super_operations yaffs_super_ops = {
+ 	.statfs = yaffs_statfs,
++
++#ifndef YAFFS_USE_OWN_IGET
+ 	.read_inode = yaffs_read_inode,
++#endif
++#ifdef YAFFS_HAS_PUT_INODE
+ 	.put_inode = yaffs_put_inode,
++#endif
+ 	.put_super = yaffs_put_super,
+ 	.delete_inode = yaffs_delete_inode,
+ 	.clear_inode = yaffs_clear_inode,
+@@ -293,22 +360,21 @@ static struct super_operations yaffs_sup
+ 	.write_super = yaffs_write_super,
+ };
+ 
+-static void yaffs_GrossLock(yaffs_Device * dev)
++static void yaffs_GrossLock(yaffs_Device *dev)
+ {
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs locking\n"));
+-
++	T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current));
+ 	down(&dev->grossLock);
++	T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current));
+ }
+ 
+-static void yaffs_GrossUnlock(yaffs_Device * dev)
++static void yaffs_GrossUnlock(yaffs_Device *dev)
+ {
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs unlocking\n"));
++	T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current));
+ 	up(&dev->grossLock);
+-
+ }
+ 
+-static int yaffs_readlink(struct dentry *dentry, char __user * buffer,
+-			  int buflen)
++static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
++			int buflen)
+ {
+ 	unsigned char *alias;
+ 	int ret;
+@@ -329,7 +395,7 @@ static int yaffs_readlink(struct dentry
+ 	return ret;
+ }
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
+ static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
+ #else
+ static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
+@@ -345,32 +411,31 @@ static int yaffs_follow_link(struct dent
+ 
+ 	yaffs_GrossUnlock(dev);
+ 
+-	if (!alias)
+-        {
++	if (!alias) {
+ 		ret = -ENOMEM;
+ 		goto out;
+-        }
++	}
+ 
+ 	ret = vfs_follow_link(nd, alias);
+ 	kfree(alias);
+ out:
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
+-	return ERR_PTR (ret);
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
++	return ERR_PTR(ret);
+ #else
+ 	return ret;
+ #endif
+ }
+ 
+ struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
+-			      yaffs_Object * obj);
++				yaffs_Object *obj);
+ 
+ /*
+  * Lookup is used to find objects in the fs
+  */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 
+ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
+-				   struct nameidata *n)
++				struct nameidata *n)
+ #else
+ static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry)
+ #endif
+@@ -383,12 +448,11 @@ static struct dentry *yaffs_lookup(struc
+ 	yaffs_GrossLock(dev);
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_lookup for %d:%s\n",
+-	   yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
++		("yaffs_lookup for %d:%s\n",
++		yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
+ 
+-	obj =
+-	    yaffs_FindObjectByName(yaffs_InodeToObject(dir),
+-				   dentry->d_name.name);
++	obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir),
++					dentry->d_name.name);
+ 
+ 	obj = yaffs_GetEquivalentObject(obj);	/* in case it was a hardlink */
+ 
+@@ -397,13 +461,13 @@ static struct dentry *yaffs_lookup(struc
+ 
+ 	if (obj) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_lookup found %d\n", obj->objectId));
++			("yaffs_lookup found %d\n", obj->objectId));
+ 
+ 		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
+ 
+ 		if (inode) {
+ 			T(YAFFS_TRACE_OS,
+-			  (KERN_DEBUG "yaffs_loookup dentry \n"));
++				("yaffs_loookup dentry \n"));
+ /* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
+  * d_add even if NULL inode */
+ #if 0
+@@ -416,7 +480,7 @@ static struct dentry *yaffs_lookup(struc
+ 		}
+ 
+ 	} else {
+-		T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_lookup not found\n"));
++		T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n"));
+ 
+ 	}
+ 
+@@ -425,20 +489,22 @@ static struct dentry *yaffs_lookup(struc
+ 	d_add(dentry, inode);
+ 
+ 	return NULL;
+-	/*      return (ERR_PTR(-EIO)); */
+-
+ }
+ 
++
++#ifdef YAFFS_HAS_PUT_INODE
++
+ /* For now put inode is just for debugging
+  * Put inode is called when the inode **structure** is put.
+  */
+ static void yaffs_put_inode(struct inode *inode)
+ {
+ 	T(YAFFS_TRACE_OS,
+-	  ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
+-	   atomic_read(&inode->i_count)));
++		("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
++		atomic_read(&inode->i_count)));
+ 
+ }
++#endif
+ 
+ /* clear is called to tell the fs to release any per-inode data it holds */
+ static void yaffs_clear_inode(struct inode *inode)
+@@ -449,9 +515,9 @@ static void yaffs_clear_inode(struct ino
+ 	obj = yaffs_InodeToObject(inode);
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
+-	   atomic_read(&inode->i_count),
+-	   obj ? "object exists" : "null object"));
++		("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
++		atomic_read(&inode->i_count),
++		obj ? "object exists" : "null object"));
+ 
+ 	if (obj) {
+ 		dev = obj->myDev;
+@@ -486,23 +552,23 @@ static void yaffs_delete_inode(struct in
+ 	yaffs_Device *dev;
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
+-	   atomic_read(&inode->i_count),
+-	   obj ? "object exists" : "null object"));
++		("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
++		atomic_read(&inode->i_count),
++		obj ? "object exists" : "null object"));
+ 
+ 	if (obj) {
+ 		dev = obj->myDev;
+ 		yaffs_GrossLock(dev);
+-		yaffs_DeleteFile(obj);
++		yaffs_DeleteObject(obj);
+ 		yaffs_GrossUnlock(dev);
+ 	}
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
+-        truncate_inode_pages (&inode->i_data, 0);
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
++	truncate_inode_pages(&inode->i_data, 0);
+ #endif
+ 	clear_inode(inode);
+ }
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs_file_flush(struct file *file, fl_owner_t id)
+ #else
+ static int yaffs_file_flush(struct file *file)
+@@ -513,8 +579,8 @@ static int yaffs_file_flush(struct file
+ 	yaffs_Device *dev = obj->myDev;
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_file_flush object %d (%s)\n", obj->objectId,
+-	   obj->dirty ? "dirty" : "clean"));
++		("yaffs_file_flush object %d (%s)\n", obj->objectId,
++		obj->dirty ? "dirty" : "clean"));
+ 
+ 	yaffs_GrossLock(dev);
+ 
+@@ -535,15 +601,15 @@ static int yaffs_readpage_nolock(struct
+ 
+ 	yaffs_Device *dev;
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage at %08x, size %08x\n",
+-			   (unsigned)(pg->index << PAGE_CACHE_SHIFT),
+-			   (unsigned)PAGE_CACHE_SIZE));
++	T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n",
++			(unsigned)(pg->index << PAGE_CACHE_SHIFT),
++			(unsigned)PAGE_CACHE_SIZE));
+ 
+ 	obj = yaffs_DentryToObject(f->f_dentry);
+ 
+ 	dev = obj->myDev;
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 	BUG_ON(!PageLocked(pg));
+ #else
+ 	if (!PageLocked(pg))
+@@ -555,9 +621,9 @@ static int yaffs_readpage_nolock(struct
+ 
+ 	yaffs_GrossLock(dev);
+ 
+-	ret =
+-	    yaffs_ReadDataFromFile(obj, pg_buf, pg->index << PAGE_CACHE_SHIFT,
+-				   PAGE_CACHE_SIZE);
++	ret = yaffs_ReadDataFromFile(obj, pg_buf,
++				pg->index << PAGE_CACHE_SHIFT,
++				PAGE_CACHE_SIZE);
+ 
+ 	yaffs_GrossUnlock(dev);
+ 
+@@ -575,7 +641,7 @@ static int yaffs_readpage_nolock(struct
+ 	flush_dcache_page(pg);
+ 	kunmap(pg);
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage done\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_readpage done\n"));
+ 	return ret;
+ }
+ 
+@@ -593,7 +659,7 @@ static int yaffs_readpage(struct file *f
+ 
+ /* writepage inspired by/stolen from smbfs */
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_writepage(struct page *page, struct writeback_control *wbc)
+ #else
+ static int yaffs_writepage(struct page *page)
+@@ -616,12 +682,11 @@ static int yaffs_writepage(struct page *
+ 
+ 	if (offset > inode->i_size) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG
+-		   "yaffs_writepage at %08x, inode size = %08x!!!\n",
+-		   (unsigned)(page->index << PAGE_CACHE_SHIFT),
+-		   (unsigned)inode->i_size));
++			("yaffs_writepage at %08x, inode size = %08x!!!\n",
++			(unsigned)(page->index << PAGE_CACHE_SHIFT),
++			(unsigned)inode->i_size));
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "                -> don't care!!\n"));
++			("                -> don't care!!\n"));
+ 		unlock_page(page);
+ 		return 0;
+ 	}
+@@ -629,11 +694,10 @@ static int yaffs_writepage(struct page *
+ 	end_index = inode->i_size >> PAGE_CACHE_SHIFT;
+ 
+ 	/* easy case */
+-	if (page->index < end_index) {
++	if (page->index < end_index)
+ 		nBytes = PAGE_CACHE_SIZE;
+-	} else {
++	else
+ 		nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1);
+-	}
+ 
+ 	get_page(page);
+ 
+@@ -643,19 +707,18 @@ static int yaffs_writepage(struct page *
+ 	yaffs_GrossLock(obj->myDev);
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_writepage at %08x, size %08x\n",
+-	   (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
++		("yaffs_writepage at %08x, size %08x\n",
++		(unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "writepag0: obj = %05x, ino = %05x\n",
+-	   (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
++		("writepag0: obj = %05x, ino = %05x\n",
++		(int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
+ 
+-	nWritten =
+-	    yaffs_WriteDataToFile(obj, buffer, page->index << PAGE_CACHE_SHIFT,
+-				  nBytes, 0);
++	nWritten = yaffs_WriteDataToFile(obj, buffer,
++			page->index << PAGE_CACHE_SHIFT, nBytes, 0);
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "writepag1: obj = %05x, ino = %05x\n",
+-	   (int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
++		("writepag1: obj = %05x, ino = %05x\n",
++		(int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
+ 
+ 	yaffs_GrossUnlock(obj->myDev);
+ 
+@@ -667,100 +730,207 @@ static int yaffs_writepage(struct page *
+ 	return (nWritten == nBytes) ? 0 : -ENOSPC;
+ }
+ 
++
++#if (YAFFS_USE_WRITE_BEGIN_END > 0)
++static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned flags,
++				struct page **pagep, void **fsdata)
++{
++	struct page *pg = NULL;
++	pgoff_t index = pos >> PAGE_CACHE_SHIFT;
++	uint32_t offset = pos & (PAGE_CACHE_SIZE - 1);
++	uint32_t to = offset + len;
++
++	int ret = 0;
++	int space_held = 0;
++
++	T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n"));
++	/* Get a page */
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)
++	pg = grab_cache_page_write_begin(mapping, index, flags);
++#else
++	pg = __grab_cache_page(mapping, index);
++#endif
++
++	*pagep = pg;
++	if (!pg) {
++		ret =  -ENOMEM;
++		goto out;
++	}
++	/* Get fs space */
++	space_held = yaffs_hold_space(filp);
++
++	if (!space_held) {
++		ret = -ENOSPC;
++		goto out;
++	}
++
++	/* Update page if required */
++
++	if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
++		ret = yaffs_readpage_nolock(filp, pg);
++
++	if (ret)
++		goto out;
++
++	/* Happy path return */
++	T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n"));
++
++	return 0;
++
++out:
++	T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret));
++	if (space_held)
++		yaffs_release_space(filp);
++	if (pg) {
++		unlock_page(pg);
++		page_cache_release(pg);
++	}
++	return ret;
++}
++
++#else
++
+ static int yaffs_prepare_write(struct file *f, struct page *pg,
+-			       unsigned offset, unsigned to)
++				unsigned offset, unsigned to)
+ {
++	T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n"));
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_prepair_write\n"));
+ 	if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
+ 		return yaffs_readpage_nolock(f, pg);
+-
+ 	return 0;
++}
++#endif
++
++#if (YAFFS_USE_WRITE_BEGIN_END > 0)
++static int yaffs_write_end(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned copied,
++				struct page *pg, void *fsdadata)
++{
++	int ret = 0;
++	void *addr, *kva;
++	uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1);
++
++	kva = kmap(pg);
++	addr = kva + offset_into_page;
++
++	T(YAFFS_TRACE_OS,
++		("yaffs_write_end addr %x pos %x nBytes %d\n",
++		(unsigned) addr,
++		(int)pos, copied));
++
++	ret = yaffs_file_write(filp, addr, copied, &pos);
++
++	if (ret != copied) {
++		T(YAFFS_TRACE_OS,
++			("yaffs_write_end not same size ret %d  copied %d\n",
++			ret, copied));
++		SetPageError(pg);
++		ClearPageUptodate(pg);
++	} else {
++		SetPageUptodate(pg);
++	}
++
++	kunmap(pg);
+ 
++	yaffs_release_space(filp);
++	unlock_page(pg);
++	page_cache_release(pg);
++	return ret;
+ }
++#else
+ 
+ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
+-			      unsigned to)
++				unsigned to)
+ {
++	void *addr, *kva;
+ 
+-	void *addr = page_address(pg) + offset;
+ 	loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
+ 	int nBytes = to - offset;
+ 	int nWritten;
+ 
+ 	unsigned spos = pos;
+-	unsigned saddr = (unsigned)addr;
++	unsigned saddr;
++
++	kva = kmap(pg);
++	addr = kva + offset;
++
++	saddr = (unsigned) addr;
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr,
+-	   spos, nBytes));
++		("yaffs_commit_write addr %x pos %x nBytes %d\n",
++		saddr, spos, nBytes));
+ 
+ 	nWritten = yaffs_file_write(f, addr, nBytes, &pos);
+ 
+ 	if (nWritten != nBytes) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG
+-		   "yaffs_commit_write not same size nWritten %d  nBytes %d\n",
+-		   nWritten, nBytes));
++			("yaffs_commit_write not same size nWritten %d  nBytes %d\n",
++			nWritten, nBytes));
+ 		SetPageError(pg);
+ 		ClearPageUptodate(pg);
+ 	} else {
+ 		SetPageUptodate(pg);
+ 	}
+ 
++	kunmap(pg);
++
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_commit_write returning %d\n",
+-	   nWritten == nBytes ? 0 : nWritten));
++		("yaffs_commit_write returning %d\n",
++		nWritten == nBytes ? 0 : nWritten));
+ 
+ 	return nWritten == nBytes ? 0 : nWritten;
+-
+ }
++#endif
++
+ 
+-static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj)
++static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj)
+ {
+ 	if (inode && obj) {
+ 
+ 
+ 		/* Check mode against the variant type and attempt to repair if broken. */
+- 		__u32 mode = obj->yst_mode;
+- 		switch( obj->variantType ){
+- 		case YAFFS_OBJECT_TYPE_FILE :
+- 		        if( ! S_ISREG(mode) ){
+- 			        obj->yst_mode &= ~S_IFMT;
+- 			        obj->yst_mode |= S_IFREG;
+- 			}
+-
+- 			break;
+- 		case YAFFS_OBJECT_TYPE_SYMLINK :
+- 		        if( ! S_ISLNK(mode) ){
+- 			        obj->yst_mode &= ~S_IFMT;
+- 				obj->yst_mode |= S_IFLNK;
+- 			}
+-
+- 			break;
+- 		case YAFFS_OBJECT_TYPE_DIRECTORY :
+- 		        if( ! S_ISDIR(mode) ){
+- 			        obj->yst_mode &= ~S_IFMT;
+- 			        obj->yst_mode |= S_IFDIR;
+- 			}
+-
+- 			break;
+- 		case YAFFS_OBJECT_TYPE_UNKNOWN :
+- 		case YAFFS_OBJECT_TYPE_HARDLINK :
+- 		case YAFFS_OBJECT_TYPE_SPECIAL :
+- 		default:
+- 		        /* TODO? */
+- 		        break;
+- 		}
++		__u32 mode = obj->yst_mode;
++		switch (obj->variantType) {
++		case YAFFS_OBJECT_TYPE_FILE:
++			if (!S_ISREG(mode)) {
++				obj->yst_mode &= ~S_IFMT;
++				obj->yst_mode |= S_IFREG;
++			}
++
++			break;
++		case YAFFS_OBJECT_TYPE_SYMLINK:
++			if (!S_ISLNK(mode)) {
++				obj->yst_mode &= ~S_IFMT;
++				obj->yst_mode |= S_IFLNK;
++			}
++
++			break;
++		case YAFFS_OBJECT_TYPE_DIRECTORY:
++			if (!S_ISDIR(mode)) {
++				obj->yst_mode &= ~S_IFMT;
++				obj->yst_mode |= S_IFDIR;
++			}
++
++			break;
++		case YAFFS_OBJECT_TYPE_UNKNOWN:
++		case YAFFS_OBJECT_TYPE_HARDLINK:
++		case YAFFS_OBJECT_TYPE_SPECIAL:
++		default:
++			/* TODO? */
++			break;
++		}
++
++		inode->i_flags |= S_NOATIME;
+ 
+ 		inode->i_ino = obj->objectId;
+ 		inode->i_mode = obj->yst_mode;
+ 		inode->i_uid = obj->yst_uid;
+ 		inode->i_gid = obj->yst_gid;
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+ 		inode->i_blksize = inode->i_sb->s_blocksize;
+ #endif
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 
+ 		inode->i_rdev = old_decode_dev(obj->yst_rdev);
+ 		inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
+@@ -781,26 +951,25 @@ static void yaffs_FillInodeFromObject(st
+ 		inode->i_nlink = yaffs_GetObjectLinkCount(obj);
+ 
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG
+-		   "yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
+-		   inode->i_mode, inode->i_uid, inode->i_gid,
+-		   (int)inode->i_size, atomic_read(&inode->i_count)));
++			("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
++			inode->i_mode, inode->i_uid, inode->i_gid,
++			(int)inode->i_size, atomic_read(&inode->i_count)));
+ 
+ 		switch (obj->yst_mode & S_IFMT) {
+ 		default:	/* fifo, device or socket */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 			init_special_inode(inode, obj->yst_mode,
+-					   old_decode_dev(obj->yst_rdev));
++					old_decode_dev(obj->yst_rdev));
+ #else
+ 			init_special_inode(inode, obj->yst_mode,
+-					   (dev_t) (obj->yst_rdev));
++					(dev_t) (obj->yst_rdev));
+ #endif
+ 			break;
+ 		case S_IFREG:	/* file */
+ 			inode->i_op = &yaffs_file_inode_operations;
+ 			inode->i_fop = &yaffs_file_operations;
+ 			inode->i_mapping->a_ops =
+-			    &yaffs_file_address_operations;
++				&yaffs_file_address_operations;
+ 			break;
+ 		case S_IFDIR:	/* directory */
+ 			inode->i_op = &yaffs_dir_inode_operations;
+@@ -817,34 +986,36 @@ static void yaffs_FillInodeFromObject(st
+ 
+ 	} else {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_FileInode invalid parameters\n"));
++			("yaffs_FileInode invalid parameters\n"));
+ 	}
+ 
+ }
+ 
+ struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
+-			      yaffs_Object * obj)
++				yaffs_Object *obj)
+ {
+ 	struct inode *inode;
+ 
+ 	if (!sb) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_get_inode for NULL super_block!!\n"));
++			("yaffs_get_inode for NULL super_block!!\n"));
+ 		return NULL;
+ 
+ 	}
+ 
+ 	if (!obj) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_get_inode for NULL object!!\n"));
++			("yaffs_get_inode for NULL object!!\n"));
+ 		return NULL;
+ 
+ 	}
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_get_inode for object %d\n", obj->objectId));
++		("yaffs_get_inode for object %d\n", obj->objectId));
+ 
+-	inode = iget(sb, obj->objectId);
++	inode = Y_IGET(sb, obj->objectId);
++	if (IS_ERR(inode))
++		return NULL;
+ 
+ 	/* NB Side effect: iget calls back to yaffs_read_inode(). */
+ 	/* iget also increments the inode's i_count */
+@@ -854,7 +1025,7 @@ struct inode *yaffs_get_inode(struct sup
+ }
+ 
+ static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
+-				loff_t * pos)
++				loff_t *pos)
+ {
+ 	yaffs_Object *obj;
+ 	int nWritten, ipos;
+@@ -869,28 +1040,26 @@ static ssize_t yaffs_file_write(struct f
+ 
+ 	inode = f->f_dentry->d_inode;
+ 
+-	if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) {
++	if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND)
+ 		ipos = inode->i_size;
+-	} else {
++	else
+ 		ipos = *pos;
+-	}
+ 
+-	if (!obj) {
++	if (!obj)
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_file_write: hey obj is null!\n"));
+-	} else {
++			("yaffs_file_write: hey obj is null!\n"));
++	else
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG
+-		   "yaffs_file_write about to write writing %d bytes"
+-		   "to object %d at %d\n",
+-		   n, obj->objectId, ipos));
+-	}
++			("yaffs_file_write about to write writing %zu bytes"
++			"to object %d at %d\n",
++			n, obj->objectId, ipos));
+ 
+ 	nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0);
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_file_write writing %d bytes, %d written at %d\n",
+-	   n, nWritten, ipos));
++		("yaffs_file_write writing %zu bytes, %d written at %d\n",
++		n, nWritten, ipos));
++
+ 	if (nWritten > 0) {
+ 		ipos += nWritten;
+ 		*pos = ipos;
+@@ -899,10 +1068,9 @@ static ssize_t yaffs_file_write(struct f
+ 			inode->i_blocks = (ipos + 511) >> 9;
+ 
+ 			T(YAFFS_TRACE_OS,
+-			  (KERN_DEBUG
+-			   "yaffs_file_write size updated to %d bytes, "
+-			   "%d blocks\n",
+-			   ipos, (int)(inode->i_blocks)));
++				("yaffs_file_write size updated to %d bytes, "
++				"%d blocks\n",
++				ipos, (int)(inode->i_blocks)));
+ 		}
+ 
+ 	}
+@@ -910,13 +1078,54 @@ static ssize_t yaffs_file_write(struct f
+ 	return nWritten == 0 ? -ENOSPC : nWritten;
+ }
+ 
++/* Space holding and freeing is done to ensure we have space available for write_begin/end */
++/* For now we just assume few parallel writes and check against a small number. */
++/* Todo: need to do this with a counter to handle parallel reads better */
++
++static ssize_t yaffs_hold_space(struct file *f)
++{
++	yaffs_Object *obj;
++	yaffs_Device *dev;
++
++	int nFreeChunks;
++
++
++	obj = yaffs_DentryToObject(f->f_dentry);
++
++	dev = obj->myDev;
++
++	yaffs_GrossLock(dev);
++
++	nFreeChunks = yaffs_GetNumberOfFreeChunks(dev);
++
++	yaffs_GrossUnlock(dev);
++
++	return (nFreeChunks > 20) ? 1 : 0;
++}
++
++static void yaffs_release_space(struct file *f)
++{
++	yaffs_Object *obj;
++	yaffs_Device *dev;
++
++
++	obj = yaffs_DentryToObject(f->f_dentry);
++
++	dev = obj->myDev;
++
++	yaffs_GrossLock(dev);
++
++
++	yaffs_GrossUnlock(dev);
++}
++
+ static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
+ {
+ 	yaffs_Object *obj;
+ 	yaffs_Device *dev;
+ 	struct inode *inode = f->f_dentry->d_inode;
+ 	unsigned long offset, curoffs;
+-	struct list_head *i;
++	struct ylist_head *i;
+ 	yaffs_Object *l;
+ 
+ 	char name[YAFFS_MAX_NAME_LENGTH + 1];
+@@ -932,24 +1141,20 @@ static int yaffs_readdir(struct file *f,
+ 
+ 	if (offset == 0) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_readdir: entry . ino %d \n",
+-		   (int)inode->i_ino));
+-		if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR)
+-		    < 0) {
++			("yaffs_readdir: entry . ino %d \n",
++			(int)inode->i_ino));
++		if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0)
+ 			goto out;
+-		}
+ 		offset++;
+ 		f->f_pos++;
+ 	}
+ 	if (offset == 1) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_readdir: entry .. ino %d \n",
+-		   (int)f->f_dentry->d_parent->d_inode->i_ino));
+-		if (filldir
+-		    (dirent, "..", 2, offset,
+-		     f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) {
++			("yaffs_readdir: entry .. ino %d \n",
++			(int)f->f_dentry->d_parent->d_inode->i_ino));
++		if (filldir(dirent, "..", 2, offset,
++			f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
+ 			goto out;
+-		}
+ 		offset++;
+ 		f->f_pos++;
+ 	}
+@@ -965,35 +1170,32 @@ static int yaffs_readdir(struct file *f,
+ 		f->f_version = inode->i_version;
+ 	}
+ 
+-	list_for_each(i, &obj->variant.directoryVariant.children) {
++	ylist_for_each(i, &obj->variant.directoryVariant.children) {
+ 		curoffs++;
+ 		if (curoffs >= offset) {
+-			l = list_entry(i, yaffs_Object, siblings);
++			l = ylist_entry(i, yaffs_Object, siblings);
+ 
+ 			yaffs_GetObjectName(l, name,
+ 					    YAFFS_MAX_NAME_LENGTH + 1);
+ 			T(YAFFS_TRACE_OS,
+-			  (KERN_DEBUG "yaffs_readdir: %s inode %d\n", name,
++			  ("yaffs_readdir: %s inode %d\n", name,
+ 			   yaffs_GetObjectInode(l)));
+ 
+ 			if (filldir(dirent,
+-				    name,
+-				    strlen(name),
+-				    offset,
+-				    yaffs_GetObjectInode(l),
+-				    yaffs_GetObjectType(l))
+-			    < 0) {
++					name,
++					strlen(name),
++					offset,
++					yaffs_GetObjectInode(l),
++					yaffs_GetObjectType(l)) < 0)
+ 				goto up_and_out;
+-			}
+ 
+ 			offset++;
+ 			f->f_pos++;
+ 		}
+ 	}
+ 
+-      up_and_out:
+-      out:
+-
++up_and_out:
++out:
+ 	yaffs_GrossUnlock(dev);
+ 
+ 	return 0;
+@@ -1002,12 +1204,19 @@ static int yaffs_readdir(struct file *f,
+ /*
+  * File creation. Allocate an inode, and we're done..
+  */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
++#define YCRED(x) x
++#else
++#define YCRED(x) (x->cred)
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-		       dev_t rdev)
++			dev_t rdev)
+ #else
+ static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-		       int rdev)
++			int rdev)
+ #endif
+ {
+ 	struct inode *inode;
+@@ -1018,25 +1227,25 @@ static int yaffs_mknod(struct inode *dir
+ 	yaffs_Object *parent = yaffs_InodeToObject(dir);
+ 
+ 	int error = -ENOSPC;
+-	uid_t uid = current->fsuid;
+-	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
++	uid_t uid = YCRED(current)->fsuid;
++	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+ 
+-	if((dir->i_mode & S_ISGID) && S_ISDIR(mode))
++	if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
+ 		mode |= S_ISGID;
+ 
+ 	if (parent) {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_mknod: parent object %d type %d\n",
+-		   parent->objectId, parent->variantType));
++			("yaffs_mknod: parent object %d type %d\n",
++			parent->objectId, parent->variantType));
+ 	} else {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_mknod: could not get parent object\n"));
++			("yaffs_mknod: could not get parent object\n"));
+ 		return -EPERM;
+ 	}
+ 
+ 	T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, "
+-			   "mode %x dev %x\n",
+-			   dentry->d_name.name, mode, rdev));
++			"mode %x dev %x\n",
++			dentry->d_name.name, mode, rdev));
+ 
+ 	dev = parent->myDev;
+ 
+@@ -1045,33 +1254,28 @@ static int yaffs_mknod(struct inode *dir
+ 	switch (mode & S_IFMT) {
+ 	default:
+ 		/* Special (socket, fifo, device...) */
+-		T(YAFFS_TRACE_OS, (KERN_DEBUG
+-				   "yaffs_mknod: making special\n"));
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+-		obj =
+-		    yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
+-				       gid, old_encode_dev(rdev));
+-#else
+-		obj =
+-		    yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
+-				       gid, rdev);
++		T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n"));
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++		obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
++				gid, old_encode_dev(rdev));
++#else
++		obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
++				gid, rdev);
+ #endif
+ 		break;
+ 	case S_IFREG:		/* file          */
+-		T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n"));
+-		obj =
+-		    yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
+-				    gid);
++		T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n"));
++		obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
++				gid);
+ 		break;
+ 	case S_IFDIR:		/* directory */
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_mknod: making directory\n"));
+-		obj =
+-		    yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
+-					 uid, gid);
++			("yaffs_mknod: making directory\n"));
++		obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
++					uid, gid);
+ 		break;
+ 	case S_IFLNK:		/* symlink */
+-		T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n"));
++		T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n"));
+ 		obj = NULL;	/* Do we ever get here? */
+ 		break;
+ 	}
+@@ -1083,12 +1287,12 @@ static int yaffs_mknod(struct inode *dir
+ 		inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
+ 		d_instantiate(dentry, inode);
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_mknod created object %d count = %d\n",
+-		   obj->objectId, atomic_read(&inode->i_count)));
++			("yaffs_mknod created object %d count = %d\n",
++			obj->objectId, atomic_read(&inode->i_count)));
+ 		error = 0;
+ 	} else {
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_mknod failed making object\n"));
++			("yaffs_mknod failed making object\n"));
+ 		error = -ENOMEM;
+ 	}
+ 
+@@ -1098,25 +1302,19 @@ static int yaffs_mknod(struct inode *dir
+ static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+ {
+ 	int retVal;
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mkdir\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_mkdir\n"));
+ 	retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0);
+-#if 0
+-	/* attempt to fix dir bug - didn't work */
+-	if (!retVal) {
+-		dget(dentry);
+-	}
+-#endif
+ 	return retVal;
+ }
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
+ 			struct nameidata *n)
+ #else
+ static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode)
+ #endif
+ {
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_create\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_create\n"));
+ 	return yaffs_mknod(dir, dentry, mode | S_IFREG, 0);
+ }
+ 
+@@ -1127,8 +1325,8 @@ static int yaffs_unlink(struct inode *di
+ 	yaffs_Device *dev;
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_unlink %d:%s\n", (int)(dir->i_ino),
+-	   dentry->d_name.name));
++		("yaffs_unlink %d:%s\n", (int)(dir->i_ino),
++		dentry->d_name.name));
+ 
+ 	dev = yaffs_InodeToObject(dir)->myDev;
+ 
+@@ -1151,82 +1349,74 @@ static int yaffs_unlink(struct inode *di
+  * Create a link...
+  */
+ static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
+-		      struct dentry *dentry)
++			struct dentry *dentry)
+ {
+ 	struct inode *inode = old_dentry->d_inode;
+ 	yaffs_Object *obj = NULL;
+ 	yaffs_Object *link = NULL;
+ 	yaffs_Device *dev;
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_link\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_link\n"));
+ 
+ 	obj = yaffs_InodeToObject(inode);
+ 	dev = obj->myDev;
+ 
+ 	yaffs_GrossLock(dev);
+ 
+-	if (!S_ISDIR(inode->i_mode))	/* Don't link directories */
+-	{
+-		link =
+-		    yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
+-			       obj);
+-	}
++	if (!S_ISDIR(inode->i_mode))		/* Don't link directories */
++		link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
++			obj);
+ 
+ 	if (link) {
+ 		old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj);
+ 		d_instantiate(dentry, old_dentry->d_inode);
+ 		atomic_inc(&old_dentry->d_inode->i_count);
+ 		T(YAFFS_TRACE_OS,
+-		  (KERN_DEBUG "yaffs_link link count %d i_count %d\n",
+-		   old_dentry->d_inode->i_nlink,
+-		   atomic_read(&old_dentry->d_inode->i_count)));
+-
++			("yaffs_link link count %d i_count %d\n",
++			old_dentry->d_inode->i_nlink,
++			atomic_read(&old_dentry->d_inode->i_count)));
+ 	}
+ 
+ 	yaffs_GrossUnlock(dev);
+ 
+-	if (link) {
+-
++	if (link)
+ 		return 0;
+-	}
+ 
+ 	return -EPERM;
+ }
+ 
+ static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
+-			 const char *symname)
++				const char *symname)
+ {
+ 	yaffs_Object *obj;
+ 	yaffs_Device *dev;
+-	uid_t uid = current->fsuid;
+-	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
++	uid_t uid = YCRED(current)->fsuid;
++	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_symlink\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_symlink\n"));
+ 
+ 	dev = yaffs_InodeToObject(dir)->myDev;
+ 	yaffs_GrossLock(dev);
+ 	obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name,
+-				 S_IFLNK | S_IRWXUGO, uid, gid, symname);
++				S_IFLNK | S_IRWXUGO, uid, gid, symname);
+ 	yaffs_GrossUnlock(dev);
+ 
+ 	if (obj) {
+-
+ 		struct inode *inode;
+ 
+ 		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
+ 		d_instantiate(dentry, inode);
+-		T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink created OK\n"));
++		T(YAFFS_TRACE_OS, ("symlink created OK\n"));
+ 		return 0;
+ 	} else {
+-		T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink not created\n"));
+-
++		T(YAFFS_TRACE_OS, ("symlink not created\n"));
+ 	}
+ 
+ 	return -ENOMEM;
+ }
+ 
+ static int yaffs_sync_object(struct file *file, struct dentry *dentry,
+-			     int datasync)
++				int datasync)
+ {
+ 
+ 	yaffs_Object *obj;
+@@ -1236,7 +1426,7 @@ static int yaffs_sync_object(struct file
+ 
+ 	dev = obj->myDev;
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_object\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_sync_object\n"));
+ 	yaffs_GrossLock(dev);
+ 	yaffs_FlushFile(obj, 1);
+ 	yaffs_GrossUnlock(dev);
+@@ -1255,41 +1445,36 @@ static int yaffs_rename(struct inode *ol
+ 	int retVal = YAFFS_FAIL;
+ 	yaffs_Object *target;
+ 
+-        T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_rename\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_rename\n"));
+ 	dev = yaffs_InodeToObject(old_dir)->myDev;
+ 
+ 	yaffs_GrossLock(dev);
+ 
+ 	/* Check if the target is an existing directory that is not empty. */
+-	target =
+-	    yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
+-				   new_dentry->d_name.name);
++	target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
++				new_dentry->d_name.name);
+ 
+ 
+ 
+-	if (target &&
+-	    target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
+-	    !list_empty(&target->variant.directoryVariant.children)) {
++	if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
++		!ylist_empty(&target->variant.directoryVariant.children)) {
+ 
+-	        T(YAFFS_TRACE_OS, (KERN_DEBUG "target is non-empty dir\n"));
++		T(YAFFS_TRACE_OS, ("target is non-empty dir\n"));
+ 
+ 		retVal = YAFFS_FAIL;
+ 	} else {
+-
+ 		/* Now does unlinking internally using shadowing mechanism */
+-	        T(YAFFS_TRACE_OS, (KERN_DEBUG "calling yaffs_RenameObject\n"));
+-
+-		retVal =
+-		    yaffs_RenameObject(yaffs_InodeToObject(old_dir),
+-				       old_dentry->d_name.name,
+-				       yaffs_InodeToObject(new_dir),
+-				       new_dentry->d_name.name);
++		T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n"));
+ 
++		retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir),
++				old_dentry->d_name.name,
++				yaffs_InodeToObject(new_dir),
++				new_dentry->d_name.name);
+ 	}
+ 	yaffs_GrossUnlock(dev);
+ 
+ 	if (retVal == YAFFS_OK) {
+-		if(target) {
++		if (target) {
+ 			new_dentry->d_inode->i_nlink--;
+ 			mark_inode_dirty(new_dentry->d_inode);
+ 		}
+@@ -1298,7 +1483,6 @@ static int yaffs_rename(struct inode *ol
+ 	} else {
+ 		return -ENOTEMPTY;
+ 	}
+-
+ }
+ 
+ static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
+@@ -1308,15 +1492,15 @@ static int yaffs_setattr(struct dentry *
+ 	yaffs_Device *dev;
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_setattr of object %d\n",
+-	   yaffs_InodeToObject(inode)->objectId));
+-
+-	if ((error = inode_change_ok(inode, attr)) == 0) {
++		("yaffs_setattr of object %d\n",
++		yaffs_InodeToObject(inode)->objectId));
+ 
++	error = inode_change_ok(inode, attr);
++	if (error == 0) {
+ 		dev = yaffs_InodeToObject(inode)->myDev;
+ 		yaffs_GrossLock(dev);
+ 		if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) ==
+-		    YAFFS_OK) {
++				YAFFS_OK) {
+ 			error = 0;
+ 		} else {
+ 			error = -EPERM;
+@@ -1328,12 +1512,12 @@ static int yaffs_setattr(struct dentry *
+ 	return error;
+ }
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
+ {
+ 	yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
+ 	struct super_block *sb = dentry->d_sb;
+-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf)
+ {
+ 	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+@@ -1343,32 +1527,53 @@ static int yaffs_statfs(struct super_blo
+ 	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+ #endif
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_statfs\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_statfs\n"));
+ 
+ 	yaffs_GrossLock(dev);
+ 
+ 	buf->f_type = YAFFS_MAGIC;
+ 	buf->f_bsize = sb->s_blocksize;
+ 	buf->f_namelen = 255;
+-	if (sb->s_blocksize > dev->nDataBytesPerChunk) {
++
++	if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) {
++		/* Do this if chunk size is not a power of 2 */
++
++		uint64_t bytesInDev;
++		uint64_t bytesFree;
++
++		bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) *
++			((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk));
++
++		do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */
++		buf->f_blocks = bytesInDev;
++
++		bytesFree  = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) *
++			((uint64_t)(dev->nDataBytesPerChunk));
++
++		do_div(bytesFree, sb->s_blocksize);
++
++		buf->f_bfree = bytesFree;
++
++	} else if (sb->s_blocksize > dev->nDataBytesPerChunk) {
+ 
+ 		buf->f_blocks =
+-		    (dev->endBlock - dev->startBlock +
+-		     1) * dev->nChunksPerBlock / (sb->s_blocksize /
+-						  dev->nDataBytesPerChunk);
++			(dev->endBlock - dev->startBlock + 1) *
++			dev->nChunksPerBlock /
++			(sb->s_blocksize / dev->nDataBytesPerChunk);
+ 		buf->f_bfree =
+-		    yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize /
+-							dev->nDataBytesPerChunk);
++			yaffs_GetNumberOfFreeChunks(dev) /
++			(sb->s_blocksize / dev->nDataBytesPerChunk);
+ 	} else {
+-
+ 		buf->f_blocks =
+-		    (dev->endBlock - dev->startBlock +
+-		     1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk /
+-						  sb->s_blocksize);
++			(dev->endBlock - dev->startBlock + 1) *
++			dev->nChunksPerBlock *
++			(dev->nDataBytesPerChunk / sb->s_blocksize);
++
+ 		buf->f_bfree =
+-		    yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk /
+-							sb->s_blocksize);
++			yaffs_GetNumberOfFreeChunks(dev) *
++			(dev->nDataBytesPerChunk / sb->s_blocksize);
+ 	}
++
+ 	buf->f_files = 0;
+ 	buf->f_ffree = 0;
+ 	buf->f_bavail = buf->f_bfree;
+@@ -1378,18 +1583,19 @@ static int yaffs_statfs(struct super_blo
+ }
+ 
+ 
+-/**
+ static int yaffs_do_sync_fs(struct super_block *sb)
+ {
+ 
+ 	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n"));
+ 
+-	if(sb->s_dirt) {
++	if (sb->s_dirt) {
+ 		yaffs_GrossLock(dev);
+ 
+-		if(dev)
++		if (dev) {
++			yaffs_FlushEntireDeviceCache(dev);
+ 			yaffs_CheckpointSave(dev);
++		}
+ 
+ 		yaffs_GrossUnlock(dev);
+ 
+@@ -1397,35 +1603,73 @@ static int yaffs_do_sync_fs(struct super
+ 	}
+ 	return 0;
+ }
+-**/
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static void yaffs_write_super(struct super_block *sb)
+ #else
+ static int yaffs_write_super(struct super_block *sb)
+ #endif
+ {
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n"));
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
+-	return 0; /* yaffs_do_sync_fs(sb);*/
++	T(YAFFS_TRACE_OS, ("yaffs_write_super\n"));
++	if (yaffs_auto_checkpoint >= 2)
++		yaffs_do_sync_fs(sb);
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18))
++	return 0;
+ #endif
+ }
+ 
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs_sync_fs(struct super_block *sb, int wait)
+ #else
+ static int yaffs_sync_fs(struct super_block *sb)
+ #endif
+ {
++	T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n"));
++
++	if (yaffs_auto_checkpoint >= 1)
++		yaffs_do_sync_fs(sb);
++
++	return 0;
++}
++
++#ifdef YAFFS_USE_OWN_IGET
++
++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino)
++{
++	struct inode *inode;
++	yaffs_Object *obj;
++	yaffs_Device *dev = yaffs_SuperToDevice(sb);
++
++	T(YAFFS_TRACE_OS,
++		("yaffs_iget for %lu\n", ino));
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n"));
++	inode = iget_locked(sb, ino);
++	if (!inode)
++		return ERR_PTR(-ENOMEM);
++	if (!(inode->i_state & I_NEW))
++		return inode;
++
++	/* NB This is called as a side effect of other functions, but
++	 * we had to release the lock to prevent deadlocks, so
++	 * need to lock again.
++	 */
+ 
+-	return 0; /* yaffs_do_sync_fs(sb);*/
++	yaffs_GrossLock(dev);
+ 
++	obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
++
++	yaffs_FillInodeFromObject(inode, obj);
++
++	yaffs_GrossUnlock(dev);
++
++	unlock_new_inode(inode);
++	return inode;
+ }
+ 
++#else
+ 
+ static void yaffs_read_inode(struct inode *inode)
+ {
+@@ -1438,7 +1682,7 @@ static void yaffs_read_inode(struct inod
+ 	yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb);
+ 
+ 	T(YAFFS_TRACE_OS,
+-	  (KERN_DEBUG "yaffs_read_inode for %d\n", (int)inode->i_ino));
++		("yaffs_read_inode for %d\n", (int)inode->i_ino));
+ 
+ 	yaffs_GrossLock(dev);
+ 
+@@ -1449,18 +1693,20 @@ static void yaffs_read_inode(struct inod
+ 	yaffs_GrossUnlock(dev);
+ }
+ 
+-static LIST_HEAD(yaffs_dev_list);
++#endif
++
++static YLIST_HEAD(yaffs_dev_list);
+ 
+-#if 0 // not used
++#if 0 /* not used */
+ static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data)
+ {
+ 	yaffs_Device    *dev = yaffs_SuperToDevice(sb);
+ 
+-	if( *flags & MS_RDONLY ) {
++	if (*flags & MS_RDONLY) {
+ 		struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
+ 
+ 		T(YAFFS_TRACE_OS,
+-			(KERN_DEBUG "yaffs_remount_fs: %s: RO\n", dev->name ));
++			("yaffs_remount_fs: %s: RO\n", dev->name));
+ 
+ 		yaffs_GrossLock(dev);
+ 
+@@ -1472,10 +1718,9 @@ static int yaffs_remount_fs(struct super
+ 			mtd->sync(mtd);
+ 
+ 		yaffs_GrossUnlock(dev);
+-	}
+-	else {
++	} else {
+ 		T(YAFFS_TRACE_OS,
+-			(KERN_DEBUG "yaffs_remount_fs: %s: RW\n", dev->name ));
++			("yaffs_remount_fs: %s: RW\n", dev->name));
+ 	}
+ 
+ 	return 0;
+@@ -1486,7 +1731,7 @@ static void yaffs_put_super(struct super
+ {
+ 	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n"));
++	T(YAFFS_TRACE_OS, ("yaffs_put_super\n"));
+ 
+ 	yaffs_GrossLock(dev);
+ 
+@@ -1494,18 +1739,17 @@ static void yaffs_put_super(struct super
+ 
+ 	yaffs_CheckpointSave(dev);
+ 
+-	if (dev->putSuperFunc) {
++	if (dev->putSuperFunc)
+ 		dev->putSuperFunc(sb);
+-	}
+ 
+ 	yaffs_Deinitialise(dev);
+ 
+ 	yaffs_GrossUnlock(dev);
+ 
+ 	/* we assume this is protected by lock_kernel() in mount/umount */
+-	list_del(&dev->devList);
++	ylist_del(&dev->devList);
+ 
+-	if(dev->spareBuffer){
++	if (dev->spareBuffer) {
+ 		YFREE(dev->spareBuffer);
+ 		dev->spareBuffer = NULL;
+ 	}
+@@ -1516,12 +1760,10 @@ static void yaffs_put_super(struct super
+ 
+ static void yaffs_MTDPutSuper(struct super_block *sb)
+ {
+-
+ 	struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
+ 
+-	if (mtd->sync) {
++	if (mtd->sync)
+ 		mtd->sync(mtd);
+-	}
+ 
+ 	put_mtd_device(mtd);
+ }
+@@ -1531,9 +1773,9 @@ static void yaffs_MarkSuperBlockDirty(vo
+ {
+ 	struct super_block *sb = (struct super_block *)vsb;
+ 
+-	T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb));
+-//	if(sb)
+-//		sb->s_dirt = 1;
++	T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb));
++	if (sb)
++		sb->s_dirt = 1;
+ }
+ 
+ typedef struct {
+@@ -1546,48 +1788,48 @@ typedef struct {
+ #define MAX_OPT_LEN 20
+ static int yaffs_parse_options(yaffs_options *options, const char *options_str)
+ {
+-	char cur_opt[MAX_OPT_LEN+1];
++	char cur_opt[MAX_OPT_LEN + 1];
+ 	int p;
+ 	int error = 0;
+ 
+ 	/* Parse through the options which is a comma seperated list */
+ 
+-	while(options_str && *options_str && !error){
+-		memset(cur_opt,0,MAX_OPT_LEN+1);
++	while (options_str && *options_str && !error) {
++		memset(cur_opt, 0, MAX_OPT_LEN + 1);
+ 		p = 0;
+ 
+-		while(*options_str && *options_str != ','){
+-			if(p < MAX_OPT_LEN){
++		while (*options_str && *options_str != ',') {
++			if (p < MAX_OPT_LEN) {
+ 				cur_opt[p] = *options_str;
+ 				p++;
+ 			}
+ 			options_str++;
+ 		}
+ 
+-		if(!strcmp(cur_opt,"inband-tags"))
++		if (!strcmp(cur_opt, "inband-tags"))
+ 			options->inband_tags = 1;
+-		else if(!strcmp(cur_opt,"no-cache"))
++		else if (!strcmp(cur_opt, "no-cache"))
+ 			options->no_cache = 1;
+-		else if(!strcmp(cur_opt,"no-checkpoint-read"))
++		else if (!strcmp(cur_opt, "no-checkpoint-read"))
+ 			options->skip_checkpoint_read = 1;
+-		else if(!strcmp(cur_opt,"no-checkpoint-write"))
++		else if (!strcmp(cur_opt, "no-checkpoint-write"))
+ 			options->skip_checkpoint_write = 1;
+-		else if(!strcmp(cur_opt,"no-checkpoint")){
++		else if (!strcmp(cur_opt, "no-checkpoint")) {
+ 			options->skip_checkpoint_read = 1;
+ 			options->skip_checkpoint_write = 1;
+ 		} else {
+-			printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",cur_opt);
++			printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",
++					cur_opt);
+ 			error = 1;
+ 		}
+-
+ 	}
+ 
+ 	return error;
+ }
+ 
+ static struct super_block *yaffs_internal_read_super(int yaffsVersion,
+-						     struct super_block *sb,
+-						     void *data, int silent)
++						struct super_block *sb,
++						void *data, int silent)
+ {
+ 	int nBlocks;
+ 	struct inode *inode = NULL;
+@@ -1602,6 +1844,7 @@ static struct super_block *yaffs_interna
+ 
+ 	sb->s_magic = YAFFS_MAGIC;
+ 	sb->s_op = &yaffs_super_ops;
++	sb->s_flags |= MS_NOATIME;
+ 
+ 	if (!sb)
+ 		printk(KERN_INFO "yaffs: sb is NULL\n");
+@@ -1614,14 +1857,14 @@ static struct super_block *yaffs_interna
+ 		       sb->s_dev,
+ 		       yaffs_devname(sb, devname_buf));
+ 
+-	if(!data_str)
++	if (!data_str)
+ 		data_str = "";
+ 
+-	printk(KERN_INFO "yaffs: passed flags \"%s\"\n",data_str);
++	printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str);
+ 
+-	memset(&options,0,sizeof(options));
++	memset(&options, 0, sizeof(options));
+ 
+-	if(yaffs_parse_options(&options,data_str)){
++	if (yaffs_parse_options(&options, data_str)) {
+ 		/* Option parsing failed */
+ 		return NULL;
+ 	}
+@@ -1645,9 +1888,9 @@ static struct super_block *yaffs_interna
+ 			       yaffs_devname(sb, devname_buf)));
+ 
+ 	/* Check it's an mtd device..... */
+-	if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) {
++	if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR)
+ 		return NULL;	/* This isn't an mtd device */
+-	}
++
+ 	/* Get the device */
+ 	mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
+ 	if (!mtd) {
+@@ -1673,29 +1916,23 @@ static struct super_block *yaffs_interna
+ 	T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd)));
+ 	T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize));
+ 	T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize));
+-	T(YAFFS_TRACE_OS, (" size %d\n", mtd->size));
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
++	T(YAFFS_TRACE_OS, (" size %u\n", mtd->size));
++#else
++	T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size));
++#endif
+ 
+ #ifdef CONFIG_YAFFS_AUTO_YAFFS2
+ 
+-	if (yaffsVersion == 1 &&
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+-	    mtd->writesize >= 2048) {
+-#else
+-	    mtd->oobblock >= 2048) {
+-#endif
+-	    T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n"));
+-	    yaffsVersion = 2;
++	if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) {
++		T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n"));
++		yaffsVersion = 2;
+ 	}
+ 
+ 	/* Added NCB 26/5/2006 for completeness */
+-	if (yaffsVersion == 2 &&
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+-	    mtd->writesize == 512) {
+-#else
+-	    mtd->oobblock == 512) {
+-#endif
+-	    T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n"));
+-	    yaffsVersion = 1;
++	if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) {
++		T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n"));
++		yaffsVersion = 1;
+ 	}
+ 
+ #endif
+@@ -1707,7 +1944,7 @@ static struct super_block *yaffs_interna
+ 		    !mtd->block_markbad ||
+ 		    !mtd->read ||
+ 		    !mtd->write ||
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ 		    !mtd->read_oob || !mtd->write_oob) {
+ #else
+ 		    !mtd->write_ecc ||
+@@ -1719,12 +1956,9 @@ static struct super_block *yaffs_interna
+ 			return NULL;
+ 		}
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+-		if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
+-#else
+-		if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
+-#endif
+-		    mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) {
++		if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
++		    mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
++		    !options.inband_tags) {
+ 			T(YAFFS_TRACE_ALWAYS,
+ 			  ("yaffs: MTD device does not have the "
+ 			   "right page sizes\n"));
+@@ -1735,7 +1969,7 @@ static struct super_block *yaffs_interna
+ 		if (!mtd->erase ||
+ 		    !mtd->read ||
+ 		    !mtd->write ||
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ 		    !mtd->read_oob || !mtd->write_oob) {
+ #else
+ 		    !mtd->write_ecc ||
+@@ -1761,7 +1995,7 @@ static struct super_block *yaffs_interna
+ 	 * Set the yaffs_Device up for mtd
+ 	 */
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ 	sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
+ #else
+ 	sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
+@@ -1780,13 +2014,15 @@ static struct super_block *yaffs_interna
+ 
+ 	/* Set up the memory size parameters.... */
+ 
+-	nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
++	nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
++
+ 	dev->startBlock = 0;
+ 	dev->endBlock = nBlocks - 1;
+ 	dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
+-	dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
++	dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
+ 	dev->nReservedBlocks = 5;
+ 	dev->nShortOpCaches = (options.no_cache) ? 0 : 10;
++	dev->inbandTags = options.inband_tags;
+ 
+ 	/* ... and the functions. */
+ 	if (yaffsVersion == 2) {
+@@ -1798,20 +2034,19 @@ static struct super_block *yaffs_interna
+ 		dev->queryNANDBlock = nandmtd2_QueryNANDBlock;
+ 		dev->spareBuffer = YMALLOC(mtd->oobsize);
+ 		dev->isYaffs2 = 1;
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+-		dev->nDataBytesPerChunk = mtd->writesize;
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++		dev->totalBytesPerChunk = mtd->writesize;
+ 		dev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
+ #else
+-		dev->nDataBytesPerChunk = mtd->oobblock;
++		dev->totalBytesPerChunk = mtd->oobblock;
+ 		dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
+ #endif
+-		nBlocks = mtd->size / mtd->erasesize;
++		nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize);
+ 
+-		dev->nCheckpointReservedBlocks = CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS;
+ 		dev->startBlock = 0;
+ 		dev->endBlock = nBlocks - 1;
+ 	} else {
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ 		/* use the MTD interface in yaffs_mtdif1.c */
+ 		dev->writeChunkWithTagsToNAND =
+ 			nandmtd1_WriteChunkWithTagsToNAND;
+@@ -1847,7 +2082,7 @@ static struct super_block *yaffs_interna
+ 	dev->skipCheckpointWrite = options.skip_checkpoint_write;
+ 
+ 	/* we assume this is protected by lock_kernel() in mount/umount */
+-	list_add_tail(&dev->devList, &yaffs_dev_list);
++	ylist_add_tail(&dev->devList, &yaffs_dev_list);
+ 
+ 	init_MUTEX(&dev->grossLock);
+ 
+@@ -1884,20 +2119,23 @@ static struct super_block *yaffs_interna
+ 		return NULL;
+ 	}
+ 	sb->s_root = root;
++	sb->s_dirt = !dev->isCheckpointed;
++	T(YAFFS_TRACE_ALWAYS,
++	  ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed));
+ 
+ 	T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n"));
+ 	return sb;
+ }
+ 
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
+ 					 int silent)
+ {
+ 	return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
+ }
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs_read_super(struct file_system_type *fs,
+ 			    int flags, const char *dev_name,
+ 			    void *data, struct vfsmount *mnt)
+@@ -1938,14 +2176,14 @@ static DECLARE_FSTYPE(yaffs_fs_type, "ya
+ 
+ #ifdef CONFIG_YAFFS_YAFFS2
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
+ 					  int silent)
+ {
+ 	return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
+ }
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ static int yaffs2_read_super(struct file_system_type *fs,
+ 			int flags, const char *dev_name, void *data,
+ 			struct vfsmount *mnt)
+@@ -1990,12 +2228,12 @@ static char *yaffs_dump_dev(char *buf, y
+ {
+ 	buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock);
+ 	buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock);
++	buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk);
+ 	buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk);
+ 	buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits);
+ 	buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize);
+ 	buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks);
+ 	buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks);
+-	buf += sprintf(buf, "nCheckptResBlocks.. %d\n", dev->nCheckpointReservedBlocks);
+ 	buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint);
+ 	buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated);
+ 	buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes);
+@@ -2006,10 +2244,8 @@ static char *yaffs_dump_dev(char *buf, y
+ 	buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads);
+ 	buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures);
+ 	buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies);
+-	buf +=
+-	    sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections);
+-	buf +=
+-	    sprintf(buf, "passiveGCs......... %d\n",
++	buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections);
++	buf += sprintf(buf, "passiveGCs......... %d\n",
+ 		    dev->passiveGarbageCollections);
+ 	buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites);
+ 	buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches);
+@@ -2025,6 +2261,7 @@ static char *yaffs_dump_dev(char *buf, y
+ 	    sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions);
+ 	buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC);
+ 	buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2);
++	buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags);
+ 
+ 	return buf;
+ }
+@@ -2033,7 +2270,7 @@ static int yaffs_proc_read(char *page,
+ 			   char **start,
+ 			   off_t offset, int count, int *eof, void *data)
+ {
+-	struct list_head *item;
++	struct ylist_head *item;
+ 	char *buf = page;
+ 	int step = offset;
+ 	int n = 0;
+@@ -2057,8 +2294,8 @@ static int yaffs_proc_read(char *page,
+ 	lock_kernel();
+ 
+ 	/* Locate and print the Nth entry.  Order N-squared but N is small. */
+-	list_for_each(item, &yaffs_dev_list) {
+-		yaffs_Device *dev = list_entry(item, yaffs_Device, devList);
++	ylist_for_each(item, &yaffs_dev_list) {
++		yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList);
+ 		if (n < step) {
+ 			n++;
+ 			continue;
+@@ -2119,7 +2356,7 @@ static int yaffs_proc_write(struct file
+ 	char *end;
+ 	char *mask_name;
+ 	const char *x;
+-	char substring[MAX_MASK_NAME_LENGTH+1];
++	char substring[MAX_MASK_NAME_LENGTH + 1];
+ 	int i;
+ 	int done = 0;
+ 	int add, len = 0;
+@@ -2129,9 +2366,8 @@ static int yaffs_proc_write(struct file
+ 
+ 	while (!done && (pos < count)) {
+ 		done = 1;
+-		while ((pos < count) && isspace(buf[pos])) {
++		while ((pos < count) && isspace(buf[pos]))
+ 			pos++;
+-		}
+ 
+ 		switch (buf[pos]) {
+ 		case '+':
+@@ -2148,20 +2384,21 @@ static int yaffs_proc_write(struct file
+ 		mask_name = NULL;
+ 
+ 		mask_bitfield = simple_strtoul(buf + pos, &end, 0);
++
+ 		if (end > buf + pos) {
+ 			mask_name = "numeral";
+ 			len = end - (buf + pos);
+ 			pos += len;
+ 			done = 0;
+ 		} else {
+-			for(x = buf + pos, i = 0;
+-			    (*x == '_' || (*x >='a' && *x <= 'z')) &&
+-			    i <MAX_MASK_NAME_LENGTH; x++, i++, pos++)
+-			    substring[i] = *x;
++			for (x = buf + pos, i = 0;
++			    (*x == '_' || (*x >= 'a' && *x <= 'z')) &&
++			    i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
++				substring[i] = *x;
+ 			substring[i] = '\0';
+ 
+ 			for (i = 0; mask_flags[i].mask_name != NULL; i++) {
+-				if(strcmp(substring,mask_flags[i].mask_name) == 0){
++				if (strcmp(substring, mask_flags[i].mask_name) == 0) {
+ 					mask_name = mask_flags[i].mask_name;
+ 					mask_bitfield = mask_flags[i].mask_bitfield;
+ 					done = 0;
+@@ -2172,7 +2409,7 @@ static int yaffs_proc_write(struct file
+ 
+ 		if (mask_name != NULL) {
+ 			done = 0;
+-			switch(add) {
++			switch (add) {
+ 			case '-':
+ 				rg &= ~mask_bitfield;
+ 				break;
+@@ -2191,13 +2428,13 @@ static int yaffs_proc_write(struct file
+ 
+ 	yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS;
+ 
+-	printk("new trace = 0x%08X\n",yaffs_traceMask);
++	printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask);
+ 
+ 	if (rg & YAFFS_TRACE_ALWAYS) {
+ 		for (i = 0; mask_flags[i].mask_name != NULL; i++) {
+ 			char flag;
+ 			flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-';
+-			printk("%c%s\n", flag, mask_flags[i].mask_name);
++			printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
+ 		}
+ 	}
+ 
+@@ -2211,12 +2448,8 @@ struct file_system_to_install {
+ };
+ 
+ static struct file_system_to_install fs_to_install[] = {
+-//#ifdef CONFIG_YAFFS_YAFFS1
+ 	{&yaffs_fs_type, 0},
+-//#endif
+-//#ifdef CONFIG_YAFFS_YAFFS2
+ 	{&yaffs2_fs_type, 0},
+-//#endif
+ 	{NULL, 0}
+ };
+ 
+@@ -2231,15 +2464,14 @@ static int __init init_yaffs_fs(void)
+ 	/* Install the proc_fs entry */
+ 	my_proc_entry = create_proc_entry("yaffs",
+ 					       S_IRUGO | S_IFREG,
+-					       &proc_root);
++					       YPROC_ROOT);
+ 
+ 	if (my_proc_entry) {
+ 		my_proc_entry->write_proc = yaffs_proc_write;
+ 		my_proc_entry->read_proc = yaffs_proc_read;
+ 		my_proc_entry->data = NULL;
+-	} else {
++	} else
+ 		return -ENOMEM;
+-	}
+ 
+ 	/* Now add the file system entries */
+ 
+@@ -2247,9 +2479,8 @@ static int __init init_yaffs_fs(void)
+ 
+ 	while (fsinst->fst && !error) {
+ 		error = register_filesystem(fsinst->fst);
+-		if (!error) {
++		if (!error)
+ 			fsinst->installed = 1;
+-		}
+ 		fsinst++;
+ 	}
+ 
+@@ -2277,7 +2508,7 @@ static void __exit exit_yaffs_fs(void)
+ 	T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__
+ 			       " removing. \n"));
+ 
+-	remove_proc_entry("yaffs", &proc_root);
++	remove_proc_entry("yaffs", YPROC_ROOT);
+ 
+ 	fsinst = fs_to_install;
+ 
+@@ -2288,7 +2519,6 @@ static void __exit exit_yaffs_fs(void)
+ 		}
+ 		fsinst++;
+ 	}
+-
+ }
+ 
+ module_init(init_yaffs_fs)
+--- /dev/null
++++ b/fs/yaffs2/yaffs_getblockinfo.h
+@@ -0,0 +1,34 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2007 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++
++#ifndef __YAFFS_GETBLOCKINFO_H__
++#define __YAFFS_GETBLOCKINFO_H__
++
++#include "yaffs_guts.h"
++
++/* Function to manipulate block info */
++static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk)
++{
++	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
++		T(YAFFS_TRACE_ERROR,
++		  (TSTR
++		   ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR),
++		   blk));
++		YBUG();
++	}
++	return &dev->blockInfo[blk - dev->internalStartBlock];
++}
++
++#endif
+--- a/fs/yaffs2/yaffs_guts.c
++++ b/fs/yaffs2/yaffs_guts.c
+@@ -12,16 +12,17 @@
+  */
+ 
+ const char *yaffs_guts_c_version =
+-    "$Id: yaffs_guts.c,v 1.49 2007-05-15 20:07:40 charles Exp $";
++    "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $";
+ 
+ #include "yportenv.h"
+ 
+ #include "yaffsinterface.h"
+ #include "yaffs_guts.h"
+ #include "yaffs_tagsvalidity.h"
++#include "yaffs_getblockinfo.h"
+ 
+ #include "yaffs_tagscompat.h"
+-#ifndef  CONFIG_YAFFS_USE_OWN_SORT
++#ifndef CONFIG_YAFFS_USE_OWN_SORT
+ #include "yaffs_qsort.h"
+ #endif
+ #include "yaffs_nand.h"
+@@ -32,116 +33,116 @@ const char *yaffs_guts_c_version =
+ #include "yaffs_packedtags2.h"
+ 
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-void yfsd_LockYAFFS(BOOL fsLockOnly);
+-void yfsd_UnlockYAFFS(BOOL fsLockOnly);
+-#endif
+-
+ #define YAFFS_PASSIVE_GC_CHUNKS 2
+ 
+ #include "yaffs_ecc.h"
+ 
+ 
+ /* Robustification (if it ever comes about...) */
+-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND);
+-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk);
+-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
+-				     const __u8 * data,
+-				     const yaffs_ExtendedTags * tags);
+-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
+-				    const yaffs_ExtendedTags * tags);
++static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND);
++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
++		int erasedOk);
++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
++				const __u8 *data,
++				const yaffs_ExtendedTags *tags);
++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
++				const yaffs_ExtendedTags *tags);
+ 
+ /* Other local prototypes */
+-static int yaffs_UnlinkObject( yaffs_Object *obj);
++static int yaffs_UnlinkObject(yaffs_Object *obj);
+ static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj);
+ 
+ static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList);
+ 
+-static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device * dev,
+-					     const __u8 * buffer,
+-					     yaffs_ExtendedTags * tags,
+-					     int useReserve);
+-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
+-				  int chunkInNAND, int inScan);
+-
+-static yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
+-					   yaffs_ObjectType type);
+-static void yaffs_AddObjectToDirectory(yaffs_Object * directory,
+-				       yaffs_Object * obj);
+-static int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name,
+-				    int force, int isShrink, int shadows);
+-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj);
++static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev,
++					const __u8 *buffer,
++					yaffs_ExtendedTags *tags,
++					int useReserve);
++static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
++				int chunkInNAND, int inScan);
++
++static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
++					yaffs_ObjectType type);
++static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
++				yaffs_Object *obj);
++static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name,
++				int force, int isShrink, int shadows);
++static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj);
+ static int yaffs_CheckStructures(void);
+-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level,
+-			      int chunkOffset, int *limit);
+-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in);
+-
+-static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo);
+-
+-static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo);
+-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer,
+-				    int lineNo);
++static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
++			int chunkOffset, int *limit);
++static int yaffs_DoGenericObjectDeletion(yaffs_Object *in);
++
++static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo);
+ 
+-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
+-				  int chunkInNAND);
+ 
+-static int yaffs_UnlinkWorker(yaffs_Object * obj);
+-static void yaffs_DestroyObject(yaffs_Object * obj);
++static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
++				int chunkInNAND);
+ 
+-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId,
+-			   int chunkInObject);
++static int yaffs_UnlinkWorker(yaffs_Object *obj);
+ 
+-loff_t yaffs_GetFileSize(yaffs_Object * obj);
++static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
++			int chunkInObject);
+ 
+-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr);
++static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
++				yaffs_BlockInfo **blockUsedPtr);
+ 
+-static void yaffs_VerifyFreeChunks(yaffs_Device * dev);
++static void yaffs_VerifyFreeChunks(yaffs_Device *dev);
+ 
+ static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in);
+ 
++static void yaffs_VerifyDirectory(yaffs_Object *directory);
+ #ifdef YAFFS_PARANOID
+-static int yaffs_CheckFileSanity(yaffs_Object * in);
++static int yaffs_CheckFileSanity(yaffs_Object *in);
+ #else
+ #define yaffs_CheckFileSanity(in)
+ #endif
+ 
+-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in);
+-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId);
++static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in);
++static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId);
+ 
+ static void yaffs_InvalidateCheckpoint(yaffs_Device *dev);
+ 
+-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode,
+-				 yaffs_ExtendedTags * tags);
++static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
++				yaffs_ExtendedTags *tags);
+ 
+-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos);
+-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
+-					  yaffs_FileStructure * fStruct,
+-					  __u32 chunkId);
++static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
++		unsigned pos);
++static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
++					yaffs_FileStructure *fStruct,
++					__u32 chunkId);
+ 
+ 
+ /* Function to calculate chunk and offset */
+ 
+-static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u32 *offset)
++static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut,
++		__u32 *offsetOut)
+ {
+-	if(dev->chunkShift){
+-		/* Easy-peasy power of 2 case */
+-		*chunk  = (__u32)(addr >> dev->chunkShift);
+-		*offset = (__u32)(addr & dev->chunkMask);
+-	}
+-	else if(dev->crumbsPerChunk)
+-	{
+-		/* Case where we're using "crumbs" */
+-		*offset = (__u32)(addr & dev->crumbMask);
+-		addr >>= dev->crumbShift;
+-		*chunk = ((__u32)addr)/dev->crumbsPerChunk;
+-		*offset += ((addr - (*chunk * dev->crumbsPerChunk)) << dev->crumbShift);
++	int chunk;
++	__u32 offset;
++
++	chunk  = (__u32)(addr >> dev->chunkShift);
++
++	if (dev->chunkDiv == 1) {
++		/* easy power of 2 case */
++		offset = (__u32)(addr & dev->chunkMask);
++	} else {
++		/* Non power-of-2 case */
++
++		loff_t chunkBase;
++
++		chunk /= dev->chunkDiv;
++
++		chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk;
++		offset = (__u32)(addr - chunkBase);
+ 	}
+-	else
+-		YBUG();
++
++	*chunkOut = chunk;
++	*offsetOut = offset;
+ }
+ 
+-/* Function to return the number of shifts for a power of 2 greater than or equal
+- * to the given number
++/* Function to return the number of shifts for a power of 2 greater than or
++ * equal to the given number
+  * Note we don't try to cater for all possible numbers and this does not have to
+  * be hellishly efficient.
+  */
+@@ -153,13 +154,14 @@ static __u32 ShiftsGE(__u32 x)
+ 
+ 	nShifts = extraBits = 0;
+ 
+-	while(x>1){
+-		if(x & 1) extraBits++;
+-		x>>=1;
++	while (x > 1) {
++		if (x & 1)
++			extraBits++;
++		x >>= 1;
+ 		nShifts++;
+ 	}
+ 
+-	if(extraBits)
++	if (extraBits)
+ 		nShifts++;
+ 
+ 	return nShifts;
+@@ -168,16 +170,17 @@ static __u32 ShiftsGE(__u32 x)
+ /* Function to return the number of shifts to get a 1 in bit 0
+  */
+ 
+-static __u32 ShiftDiv(__u32 x)
++static __u32 Shifts(__u32 x)
+ {
+ 	int nShifts;
+ 
+ 	nShifts =  0;
+ 
+-	if(!x) return 0;
++	if (!x)
++		return 0;
+ 
+-	while( !(x&1)){
+-		x>>=1;
++	while (!(x&1)) {
++		x >>= 1;
+ 		nShifts++;
+ 	}
+ 
+@@ -195,21 +198,25 @@ static int yaffs_InitialiseTempBuffers(y
+ 	int i;
+ 	__u8 *buf = (__u8 *)1;
+ 
+-	memset(dev->tempBuffer,0,sizeof(dev->tempBuffer));
++	memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer));
+ 
+ 	for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) {
+ 		dev->tempBuffer[i].line = 0;	/* not in use */
+ 		dev->tempBuffer[i].buffer = buf =
+-		    YMALLOC_DMA(dev->nDataBytesPerChunk);
++		    YMALLOC_DMA(dev->totalBytesPerChunk);
+ 	}
+ 
+ 	return buf ? YAFFS_OK : YAFFS_FAIL;
+-
+ }
+ 
+-static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo)
++__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo)
+ {
+ 	int i, j;
++
++	dev->tempInUse++;
++	if (dev->tempInUse > dev->maxTemp)
++		dev->maxTemp = dev->tempInUse;
++
+ 	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
+ 		if (dev->tempBuffer[i].line == 0) {
+ 			dev->tempBuffer[i].line = lineNo;
+@@ -227,9 +234,9 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D
+ 	T(YAFFS_TRACE_BUFFERS,
+ 	  (TSTR("Out of temp buffers at line %d, other held by lines:"),
+ 	   lineNo));
+-	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
++	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++)
+ 		T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line));
+-	}
++
+ 	T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR)));
+ 
+ 	/*
+@@ -242,10 +249,13 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D
+ 
+ }
+ 
+-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer,
++void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer,
+ 				    int lineNo)
+ {
+ 	int i;
++
++	dev->tempInUse--;
++
+ 	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
+ 		if (dev->tempBuffer[i].buffer == buffer) {
+ 			dev->tempBuffer[i].line = 0;
+@@ -267,27 +277,26 @@ static void yaffs_ReleaseTempBuffer(yaff
+ /*
+  * Determine if we have a managed buffer.
+  */
+-int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer)
++int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer)
+ {
+ 	int i;
++
+ 	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
+ 		if (dev->tempBuffer[i].buffer == buffer)
+ 			return 1;
++	}
+ 
++	for (i = 0; i < dev->nShortOpCaches; i++) {
++		if (dev->srCache[i].data == buffer)
++			return 1;
+ 	}
+ 
+-    for (i = 0; i < dev->nShortOpCaches; i++) {
+-        if( dev->srCache[i].data == buffer )
+-            return 1;
+-
+-    }
+-
+-    if (buffer == dev->checkpointBuffer)
+-      return 1;
+-
+-    T(YAFFS_TRACE_ALWAYS,
+-	  (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR)));
+-    return 0;
++	if (buffer == dev->checkpointBuffer)
++		return 1;
++
++	T(YAFFS_TRACE_ALWAYS,
++		(TSTR("yaffs: unmaged buffer detected.\n" TENDSTR)));
++	return 0;
+ }
+ 
+ 
+@@ -296,62 +305,63 @@ int yaffs_IsManagedTempBuffer(yaffs_Devi
+  * Chunk bitmap manipulations
+  */
+ 
+-static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device * dev, int blk)
++static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk)
+ {
+ 	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
+ 		T(YAFFS_TRACE_ERROR,
+-		  (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
+-		   blk));
++			(TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
++			blk));
+ 		YBUG();
+ 	}
+ 	return dev->chunkBits +
+-	    (dev->chunkBitmapStride * (blk - dev->internalStartBlock));
++		(dev->chunkBitmapStride * (blk - dev->internalStartBlock));
+ }
+ 
+ static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk)
+ {
+-	if(blk < dev->internalStartBlock || blk > dev->internalEndBlock ||
+-	   chunk < 0 || chunk >= dev->nChunksPerBlock) {
+-	   T(YAFFS_TRACE_ERROR,
+-	    (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),blk,chunk));
+-	    YBUG();
++	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock ||
++			chunk < 0 || chunk >= dev->nChunksPerBlock) {
++		T(YAFFS_TRACE_ERROR,
++		(TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),
++			blk, chunk));
++		YBUG();
+ 	}
+ }
+ 
+-static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device * dev, int blk)
++static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk)
+ {
+ 	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+ 
+ 	memset(blkBits, 0, dev->chunkBitmapStride);
+ }
+ 
+-static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk)
++static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk)
+ {
+ 	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+ 
+-	yaffs_VerifyChunkBitId(dev,blk,chunk);
++	yaffs_VerifyChunkBitId(dev, blk, chunk);
+ 
+ 	blkBits[chunk / 8] &= ~(1 << (chunk & 7));
+ }
+ 
+-static Y_INLINE void yaffs_SetChunkBit(yaffs_Device * dev, int blk, int chunk)
++static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk)
+ {
+ 	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+ 
+-	yaffs_VerifyChunkBitId(dev,blk,chunk);
++	yaffs_VerifyChunkBitId(dev, blk, chunk);
+ 
+ 	blkBits[chunk / 8] |= (1 << (chunk & 7));
+ }
+ 
+-static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device * dev, int blk, int chunk)
++static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk)
+ {
+ 	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+-	yaffs_VerifyChunkBitId(dev,blk,chunk);
++	yaffs_VerifyChunkBitId(dev, blk, chunk);
+ 
+ 	return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
+ }
+ 
+-static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device * dev, int blk)
++static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk)
+ {
+ 	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+ 	int i;
+@@ -363,17 +373,17 @@ static Y_INLINE int yaffs_StillSomeChunk
+ 	return 0;
+ }
+ 
+-static int yaffs_CountChunkBits(yaffs_Device * dev, int blk)
++static int yaffs_CountChunkBits(yaffs_Device *dev, int blk)
+ {
+ 	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+ 	int i;
+ 	int n = 0;
+ 	for (i = 0; i < dev->chunkBitmapStride; i++) {
+ 		__u8 x = *blkBits;
+-		while(x){
+-			if(x & 1)
++		while (x) {
++			if (x & 1)
+ 				n++;
+-			x >>=1;
++			x >>= 1;
+ 		}
+ 
+ 		blkBits++;
+@@ -400,7 +410,7 @@ static int yaffs_SkipNANDVerification(ya
+ 	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND));
+ }
+ 
+-static const char * blockStateName[] = {
++static const char *blockStateName[] = {
+ "Unknown",
+ "Needs scanning",
+ "Scanning",
+@@ -413,64 +423,65 @@ static const char * blockStateName[] = {
+ "Dead"
+ };
+ 
+-static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n)
++static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n)
+ {
+ 	int actuallyUsed;
+ 	int inUse;
+ 
+-	if(yaffs_SkipVerification(dev))
++	if (yaffs_SkipVerification(dev))
+ 		return;
+ 
+ 	/* Report illegal runtime states */
+-	if(bi->blockState <0 || bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
+-		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState));
++	if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState));
+ 
+-	switch(bi->blockState){
+-	 case YAFFS_BLOCK_STATE_UNKNOWN:
+-	 case YAFFS_BLOCK_STATE_SCANNING:
+-	 case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
+-		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR),
+-		n,blockStateName[bi->blockState]));
++	switch (bi->blockState) {
++	case YAFFS_BLOCK_STATE_UNKNOWN:
++	case YAFFS_BLOCK_STATE_SCANNING:
++	case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR),
++		n, blockStateName[bi->blockState]));
+ 	}
+ 
+ 	/* Check pages in use and soft deletions are legal */
+ 
+ 	actuallyUsed = bi->pagesInUse - bi->softDeletions;
+ 
+-	if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
++	if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
+ 	   bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock ||
+ 	   actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock)
+-		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR),
+-		n,bi->pagesInUse,bi->softDeletions));
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR),
++		n, bi->pagesInUse, bi->softDeletions));
+ 
+ 
+ 	/* Check chunk bitmap legal */
+-	inUse = yaffs_CountChunkBits(dev,n);
+-	if(inUse != bi->pagesInUse)
+-		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR),
+-			n,bi->pagesInUse,inUse));
++	inUse = yaffs_CountChunkBits(dev, n);
++	if (inUse != bi->pagesInUse)
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR),
++			n, bi->pagesInUse, inUse));
+ 
+ 	/* Check that the sequence number is valid.
+ 	 * Ten million is legal, but is very unlikely
+ 	 */
+-	if(dev->isYaffs2 &&
++	if (dev->isYaffs2 &&
+ 	   (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) &&
+-	   (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000 ))
+-		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has suspect sequence number of %d"TENDSTR),
+-		n,bi->sequenceNumber));
+-
++	   (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000))
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR),
++		n, bi->sequenceNumber));
+ }
+ 
+-static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n)
++static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi,
++		int n)
+ {
+-	yaffs_VerifyBlock(dev,bi,n);
++	yaffs_VerifyBlock(dev, bi, n);
+ 
+ 	/* After collection the block should be in the erased state */
+-	/* TODO: This will need to change if we do partial gc */
++	/* This will need to change if we do partial gc */
+ 
+-	if(bi->blockState != YAFFS_BLOCK_STATE_EMPTY){
+-		T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
+-			n,bi->blockState));
++	if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING &&
++			bi->blockState != YAFFS_BLOCK_STATE_EMPTY) {
++		T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
++			n, bi->blockState));
+ 	}
+ }
+ 
+@@ -480,52 +491,49 @@ static void yaffs_VerifyBlocks(yaffs_Dev
+ 	int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES];
+ 	int nIllegalBlockStates = 0;
+ 
+-
+-	if(yaffs_SkipVerification(dev))
++	if (yaffs_SkipVerification(dev))
+ 		return;
+ 
+-	memset(nBlocksPerState,0,sizeof(nBlocksPerState));
+-
++	memset(nBlocksPerState, 0, sizeof(nBlocksPerState));
+ 
+-	for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){
+-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
+-		yaffs_VerifyBlock(dev,bi,i);
++	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
++		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
++		yaffs_VerifyBlock(dev, bi, i);
+ 
+-		if(bi->blockState >=0 && bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
++		if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
+ 			nBlocksPerState[bi->blockState]++;
+ 		else
+ 			nIllegalBlockStates++;
+-
+ 	}
+ 
+-	T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR)));
+-	T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR)));
++	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
++	T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR)));
+ 
+-	T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates));
+-	if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
+-		T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR)));
++	T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates));
++	if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
++		T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR)));
+ 
+-	for(i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
++	for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
+ 		T(YAFFS_TRACE_VERIFY,
+ 		  (TSTR("%s %d blocks"TENDSTR),
+-		  blockStateName[i],nBlocksPerState[i]));
++		  blockStateName[i], nBlocksPerState[i]));
+ 
+-	if(dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
++	if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
+ 		T(YAFFS_TRACE_VERIFY,
+ 		 (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR),
+ 		 dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]));
+ 
+-	if(dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
++	if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
+ 		T(YAFFS_TRACE_VERIFY,
+ 		 (TSTR("Erased block count wrong dev %d count %d"TENDSTR),
+ 		 dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]));
+ 
+-	if(nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
++	if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
+ 		T(YAFFS_TRACE_VERIFY,
+ 		 (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR),
+ 		 nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING]));
+ 
+-	T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR)));
++	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
+ 
+ }
+ 
+@@ -535,26 +543,26 @@ static void yaffs_VerifyBlocks(yaffs_Dev
+  */
+ static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck)
+ {
+-	if(yaffs_SkipVerification(obj->myDev))
++	if (obj && yaffs_SkipVerification(obj->myDev))
+ 		return;
+ 
+-	if(!(tags && obj && oh)){
+-	 	T(YAFFS_TRACE_VERIFY,
+-		 		(TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR),
+-		 		(__u32)tags,(__u32)obj,(__u32)oh));
++	if (!(tags && obj && oh)) {
++		T(YAFFS_TRACE_VERIFY,
++				(TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR),
++				(__u32)tags, (__u32)obj, (__u32)oh));
+ 		return;
+ 	}
+ 
+-	if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
+-	   oh->type > YAFFS_OBJECT_TYPE_MAX)
+-	 	T(YAFFS_TRACE_VERIFY,
+-		 (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
+-		 tags->objectId, oh->type));
+-
+-	if(tags->objectId != obj->objectId)
+-	 	T(YAFFS_TRACE_VERIFY,
+-		 (TSTR("Obj %d header mismatch objectId %d"TENDSTR),
+-		 tags->objectId, obj->objectId));
++	if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
++			oh->type > YAFFS_OBJECT_TYPE_MAX)
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
++			tags->objectId, oh->type));
++
++	if (tags->objectId != obj->objectId)
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header mismatch objectId %d"TENDSTR),
++			tags->objectId, obj->objectId));
+ 
+ 
+ 	/*
+@@ -563,46 +571,43 @@ static void yaffs_VerifyObjectHeader(yaf
+ 	 * Tests do not apply to the root object.
+ 	 */
+ 
+-	if(parentCheck && tags->objectId > 1 && !obj->parent)
+-	 	T(YAFFS_TRACE_VERIFY,
+-		 (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
+-	 	 tags->objectId, oh->parentObjectId));
+-
+-
+-	if(parentCheck && obj->parent &&
+-	   oh->parentObjectId != obj->parent->objectId &&
+-	   (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
+-	    obj->parent->objectId != YAFFS_OBJECTID_DELETED))
+-	 	T(YAFFS_TRACE_VERIFY,
+-		 (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
+-	 	 tags->objectId, oh->parentObjectId, obj->parent->objectId));
++	if (parentCheck && tags->objectId > 1 && !obj->parent)
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
++			tags->objectId, oh->parentObjectId));
+ 
++	if (parentCheck && obj->parent &&
++			oh->parentObjectId != obj->parent->objectId &&
++			(oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
++			obj->parent->objectId != YAFFS_OBJECTID_DELETED))
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
++			tags->objectId, oh->parentObjectId, obj->parent->objectId));
+ 
+-	if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */
++	if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */
+ 		T(YAFFS_TRACE_VERIFY,
+-		(TSTR("Obj %d header name is NULL"TENDSTR),
+-		 obj->objectId));
++			(TSTR("Obj %d header name is NULL"TENDSTR),
++			obj->objectId));
+ 
+-	if(tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
++	if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
+ 		T(YAFFS_TRACE_VERIFY,
+-		(TSTR("Obj %d header name is 0xFF"TENDSTR),
+-		 obj->objectId));
++			(TSTR("Obj %d header name is 0xFF"TENDSTR),
++			obj->objectId));
+ }
+ 
+ 
+ 
+-static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn,
+-				  	__u32 level, int chunkOffset)
++static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn,
++					__u32 level, int chunkOffset)
+ {
+ 	int i;
+ 	yaffs_Device *dev = obj->myDev;
+ 	int ok = 1;
+-	int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
+ 
+ 	if (tn) {
+ 		if (level > 0) {
+ 
+-			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){
++			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
+ 				if (tn->internal[i]) {
+ 					ok = yaffs_VerifyTnodeWorker(obj,
+ 							tn->internal[i],
+@@ -611,20 +616,19 @@ static int yaffs_VerifyTnodeWorker(yaffs
+ 				}
+ 			}
+ 		} else if (level == 0) {
+-			int i;
+ 			yaffs_ExtendedTags tags;
+ 			__u32 objectId = obj->objectId;
+ 
+ 			chunkOffset <<=  YAFFS_TNODES_LEVEL0_BITS;
+ 
+-			for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){
+-				__u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
++			for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) {
++				__u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+ 
+-				if(theChunk > 0){
++				if (theChunk > 0) {
+ 					/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */
+-					yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags);
+-					if(tags.objectId != objectId || tags.chunkId != chunkOffset){
+-						T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
++					yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
++					if (tags.objectId != objectId || tags.chunkId != chunkOffset) {
++						T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
+ 							objectId, chunkOffset, theChunk,
+ 							tags.objectId, tags.chunkId));
+ 					}
+@@ -646,13 +650,15 @@ static void yaffs_VerifyFile(yaffs_Objec
+ 	__u32 lastChunk;
+ 	__u32 x;
+ 	__u32 i;
+-	int ok;
+ 	yaffs_Device *dev;
+ 	yaffs_ExtendedTags tags;
+ 	yaffs_Tnode *tn;
+ 	__u32 objectId;
+ 
+-	if(obj && yaffs_SkipVerification(obj->myDev))
++	if (!obj)
++		return;
++
++	if (yaffs_SkipVerification(obj->myDev))
+ 		return;
+ 
+ 	dev = obj->myDev;
+@@ -662,17 +668,17 @@ static void yaffs_VerifyFile(yaffs_Objec
+ 	lastChunk =  obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1;
+ 	x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS;
+ 	requiredTallness = 0;
+-	while (x> 0) {
++	while (x > 0) {
+ 		x >>= YAFFS_TNODES_INTERNAL_BITS;
+ 		requiredTallness++;
+ 	}
+ 
+ 	actualTallness = obj->variant.fileVariant.topLevel;
+ 
+-	if(requiredTallness > actualTallness )
++	if (requiredTallness > actualTallness)
+ 		T(YAFFS_TRACE_VERIFY,
+ 		(TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR),
+-		 obj->objectId,actualTallness, requiredTallness));
++		 obj->objectId, actualTallness, requiredTallness));
+ 
+ 
+ 	/* Check that the chunks in the tnode tree are all correct.
+@@ -680,39 +686,31 @@ static void yaffs_VerifyFile(yaffs_Objec
+ 	 * checking the tags for every chunk match.
+ 	 */
+ 
+-	if(yaffs_SkipNANDVerification(dev))
++	if (yaffs_SkipNANDVerification(dev))
+ 		return;
+ 
+-	for(i = 1; i <= lastChunk; i++){
+-		tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i);
++	for (i = 1; i <= lastChunk; i++) {
++		tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i);
+ 
+ 		if (tn) {
+-			__u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
+-			if(theChunk > 0){
++			__u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
++			if (theChunk > 0) {
+ 				/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */
+-				yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags);
+-				if(tags.objectId != objectId || tags.chunkId != i){
+-					T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
++				yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
++				if (tags.objectId != objectId || tags.chunkId != i) {
++					T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
+ 						objectId, i, theChunk,
+ 						tags.objectId, tags.chunkId));
+ 				}
+ 			}
+ 		}
+-
+ 	}
+-
+ }
+ 
+-static void yaffs_VerifyDirectory(yaffs_Object *obj)
+-{
+-	if(obj && yaffs_SkipVerification(obj->myDev))
+-		return;
+-
+-}
+ 
+ static void yaffs_VerifyHardLink(yaffs_Object *obj)
+ {
+-	if(obj && yaffs_SkipVerification(obj->myDev))
++	if (obj && yaffs_SkipVerification(obj->myDev))
+ 		return;
+ 
+ 	/* Verify sane equivalent object */
+@@ -720,7 +718,7 @@ static void yaffs_VerifyHardLink(yaffs_O
+ 
+ static void yaffs_VerifySymlink(yaffs_Object *obj)
+ {
+-	if(obj && yaffs_SkipVerification(obj->myDev))
++	if (obj && yaffs_SkipVerification(obj->myDev))
+ 		return;
+ 
+ 	/* Verify symlink string */
+@@ -728,7 +726,7 @@ static void yaffs_VerifySymlink(yaffs_Ob
+ 
+ static void yaffs_VerifySpecial(yaffs_Object *obj)
+ {
+-	if(obj && yaffs_SkipVerification(obj->myDev))
++	if (obj && yaffs_SkipVerification(obj->myDev))
+ 		return;
+ }
+ 
+@@ -740,14 +738,19 @@ static void yaffs_VerifyObject(yaffs_Obj
+ 	__u32 chunkMax;
+ 
+ 	__u32 chunkIdOk;
+-	__u32 chunkIsLive;
++	__u32 chunkInRange;
++	__u32 chunkShouldNotBeDeleted;
++	__u32 chunkValid;
++
++	if (!obj)
++		return;
+ 
+-	if(!obj)
++	if (obj->beingCreated)
+ 		return;
+ 
+ 	dev = obj->myDev;
+ 
+-	if(yaffs_SkipVerification(dev))
++	if (yaffs_SkipVerification(dev))
+ 		return;
+ 
+ 	/* Check sane object header chunk */
+@@ -755,50 +758,54 @@ static void yaffs_VerifyObject(yaffs_Obj
+ 	chunkMin = dev->internalStartBlock * dev->nChunksPerBlock;
+ 	chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1;
+ 
+-	chunkIdOk = (obj->chunkId >= chunkMin && obj->chunkId <= chunkMax);
+-	chunkIsLive = chunkIdOk &&
++	chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax);
++	chunkIdOk = chunkInRange || obj->hdrChunk == 0;
++	chunkValid = chunkInRange &&
+ 			yaffs_CheckChunkBit(dev,
+-					    obj->chunkId / dev->nChunksPerBlock,
+-					    obj->chunkId % dev->nChunksPerBlock);
+-	if(!obj->fake &&
+-	    (!chunkIdOk || !chunkIsLive)) {
+-	   T(YAFFS_TRACE_VERIFY,
+-	   (TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
+-	   obj->objectId,obj->chunkId,
+-	   chunkIdOk ? "" : ",out of range",
+-	   chunkIsLive || !chunkIdOk ? "" : ",marked as deleted"));
++					obj->hdrChunk / dev->nChunksPerBlock,
++					obj->hdrChunk % dev->nChunksPerBlock);
++	chunkShouldNotBeDeleted = chunkInRange && !chunkValid;
++
++	if (!obj->fake &&
++			(!chunkIdOk || chunkShouldNotBeDeleted)) {
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
++			obj->objectId, obj->hdrChunk,
++			chunkIdOk ? "" : ",out of range",
++			chunkShouldNotBeDeleted ? ",marked as deleted" : ""));
+ 	}
+ 
+-	if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) {
++	if (chunkValid && !yaffs_SkipNANDVerification(dev)) {
+ 		yaffs_ExtendedTags tags;
+ 		yaffs_ObjectHeader *oh;
+-		__u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__);
++		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
+ 
+ 		oh = (yaffs_ObjectHeader *)buffer;
+ 
+-		yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags);
++		yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer,
++				&tags);
+ 
+-		yaffs_VerifyObjectHeader(obj,oh,&tags,1);
++		yaffs_VerifyObjectHeader(obj, oh, &tags, 1);
+ 
+-		yaffs_ReleaseTempBuffer(dev,buffer,__LINE__);
++		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
+ 	}
+ 
+ 	/* Verify it has a parent */
+-	if(obj && !obj->fake &&
+-	   (!obj->parent || obj->parent->myDev != dev)){
+-	   T(YAFFS_TRACE_VERIFY,
+-	   (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
+-	   obj->objectId,obj->parent));
++	if (obj && !obj->fake &&
++			(!obj->parent || obj->parent->myDev != dev)) {
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
++			obj->objectId, obj->parent));
+ 	}
+ 
+ 	/* Verify parent is a directory */
+-	if(obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){
+-	   T(YAFFS_TRACE_VERIFY,
+-	   (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
+-	   obj->objectId,obj->parent->variantType));
++	if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
++			obj->objectId, obj->parent->variantType));
+ 	}
+ 
+-	switch(obj->variantType){
++	switch (obj->variantType) {
+ 	case YAFFS_OBJECT_TYPE_FILE:
+ 		yaffs_VerifyFile(obj);
+ 		break;
+@@ -818,33 +825,30 @@ static void yaffs_VerifyObject(yaffs_Obj
+ 	default:
+ 		T(YAFFS_TRACE_VERIFY,
+ 		(TSTR("Obj %d has illegaltype %d"TENDSTR),
+-		obj->objectId,obj->variantType));
++		obj->objectId, obj->variantType));
+ 		break;
+ 	}
+-
+-
+ }
+ 
+ static void yaffs_VerifyObjects(yaffs_Device *dev)
+ {
+ 	yaffs_Object *obj;
+ 	int i;
+-	struct list_head *lh;
++	struct ylist_head *lh;
+ 
+-	if(yaffs_SkipVerification(dev))
++	if (yaffs_SkipVerification(dev))
+ 		return;
+ 
+ 	/* Iterate through the objects in each hash entry */
+ 
+-	 for(i = 0; i <  YAFFS_NOBJECT_BUCKETS; i++){
+-	 	list_for_each(lh, &dev->objectBucket[i].list) {
++	for (i = 0; i <  YAFFS_NOBJECT_BUCKETS; i++) {
++		ylist_for_each(lh, &dev->objectBucket[i].list) {
+ 			if (lh) {
+-				obj = list_entry(lh, yaffs_Object, hashLink);
++				obj = ylist_entry(lh, yaffs_Object, hashLink);
+ 				yaffs_VerifyObject(obj);
+ 			}
+ 		}
+-	 }
+-
++	}
+ }
+ 
+ 
+@@ -855,19 +859,20 @@ static void yaffs_VerifyObjects(yaffs_De
+ static Y_INLINE int yaffs_HashFunction(int n)
+ {
+ 	n = abs(n);
+-	return (n % YAFFS_NOBJECT_BUCKETS);
++	return n % YAFFS_NOBJECT_BUCKETS;
+ }
+ 
+ /*
+- * Access functions to useful fake objects
++ * Access functions to useful fake objects.
++ * Note that root might have a presence in NAND if permissions are set.
+  */
+ 
+-yaffs_Object *yaffs_Root(yaffs_Device * dev)
++yaffs_Object *yaffs_Root(yaffs_Device *dev)
+ {
+ 	return dev->rootDir;
+ }
+ 
+-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev)
++yaffs_Object *yaffs_LostNFound(yaffs_Device *dev)
+ {
+ 	return dev->lostNFoundDir;
+ }
+@@ -877,7 +882,7 @@ yaffs_Object *yaffs_LostNFound(yaffs_Dev
+  *  Erased NAND checking functions
+  */
+ 
+-int yaffs_CheckFF(__u8 * buffer, int nBytes)
++int yaffs_CheckFF(__u8 *buffer, int nBytes)
+ {
+ 	/* Horrible, slow implementation */
+ 	while (nBytes--) {
+@@ -889,9 +894,8 @@ int yaffs_CheckFF(__u8 * buffer, int nBy
+ }
+ 
+ static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
+-				  int chunkInNAND)
++				int chunkInNAND)
+ {
+-
+ 	int retval = YAFFS_OK;
+ 	__u8 *data = yaffs_GetTempBuffer(dev, __LINE__);
+ 	yaffs_ExtendedTags tags;
+@@ -899,10 +903,9 @@ static int yaffs_CheckChunkErased(struct
+ 
+ 	result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags);
+ 
+-	if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR)
++	if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR)
+ 		retval = YAFFS_FAIL;
+ 
+-
+ 	if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) {
+ 		T(YAFFS_TRACE_NANDACCESS,
+ 		  (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND));
+@@ -915,11 +918,10 @@ static int yaffs_CheckChunkErased(struct
+ 
+ }
+ 
+-
+ static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
+-					     const __u8 * data,
+-					     yaffs_ExtendedTags * tags,
+-					     int useReserve)
++					const __u8 *data,
++					yaffs_ExtendedTags *tags,
++					int useReserve)
+ {
+ 	int attempts = 0;
+ 	int writeOk = 0;
+@@ -972,7 +974,7 @@ static int yaffs_WriteNewChunkWithTagsTo
+ 			erasedOk = yaffs_CheckChunkErased(dev, chunk);
+ 			if (erasedOk != YAFFS_OK) {
+ 				T(YAFFS_TRACE_ERROR,
+-				(TSTR ("**>> yaffs chunk %d was not erased"
++				(TSTR("**>> yaffs chunk %d was not erased"
+ 				TENDSTR), chunk));
+ 
+ 				/* try another chunk */
+@@ -992,7 +994,11 @@ static int yaffs_WriteNewChunkWithTagsTo
+ 		/* Copy the data into the robustification buffer */
+ 		yaffs_HandleWriteChunkOk(dev, chunk, data, tags);
+ 
+-	} while (writeOk != YAFFS_OK && attempts < yaffs_wr_attempts);
++	} while (writeOk != YAFFS_OK &&
++		(yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts));
++
++	if (!writeOk)
++		chunk = -1;
+ 
+ 	if (attempts > 1) {
+ 		T(YAFFS_TRACE_ERROR,
+@@ -1009,13 +1015,35 @@ static int yaffs_WriteNewChunkWithTagsTo
+  * Block retiring for handling a broken block.
+  */
+ 
+-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND)
++static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND)
+ {
+ 	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
+ 
+ 	yaffs_InvalidateCheckpoint(dev);
+ 
+-	yaffs_MarkBlockBad(dev, blockInNAND);
++	if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) {
++		if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) {
++			T(YAFFS_TRACE_ALWAYS, (TSTR(
++				"yaffs: Failed to mark bad and erase block %d"
++				TENDSTR), blockInNAND));
++		} else {
++			yaffs_ExtendedTags tags;
++			int chunkId = blockInNAND * dev->nChunksPerBlock;
++
++			__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
++
++			memset(buffer, 0xff, dev->nDataBytesPerChunk);
++			yaffs_InitialiseTags(&tags);
++			tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK;
++			if (dev->writeChunkWithTagsToNAND(dev, chunkId -
++				dev->chunkOffset, buffer, &tags) != YAFFS_OK)
++				T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to "
++					TCONT("write bad block marker to block %d")
++					TENDSTR), blockInNAND));
++
++			yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
++		}
++	}
+ 
+ 	bi->blockState = YAFFS_BLOCK_STATE_DEAD;
+ 	bi->gcPrioritise = 0;
+@@ -1029,49 +1057,45 @@ static void yaffs_RetireBlock(yaffs_Devi
+  *
+  */
+ 
+-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
+-				     const __u8 * data,
+-				     const yaffs_ExtendedTags * tags)
++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
++				const __u8 *data,
++				const yaffs_ExtendedTags *tags)
+ {
+ }
+ 
+-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
+-				    const yaffs_ExtendedTags * tags)
++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
++				const yaffs_ExtendedTags *tags)
+ {
+ }
+ 
+ void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi)
+ {
+-	if(!bi->gcPrioritise){
++	if (!bi->gcPrioritise) {
+ 		bi->gcPrioritise = 1;
+ 		dev->hasPendingPrioritisedGCs = 1;
+-		bi->chunkErrorStrikes ++;
++		bi->chunkErrorStrikes++;
+ 
+-		if(bi->chunkErrorStrikes > 3){
++		if (bi->chunkErrorStrikes > 3) {
+ 			bi->needsRetiring = 1; /* Too many stikes, so retire this */
+ 			T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR)));
+ 
+ 		}
+-
+ 	}
+ }
+ 
+-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk)
++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
++		int erasedOk)
+ {
+-
+ 	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
+ 	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
+ 
+-	yaffs_HandleChunkError(dev,bi);
++	yaffs_HandleChunkError(dev, bi);
+ 
+-
+-	if(erasedOk ) {
++	if (erasedOk) {
+ 		/* Was an actual write failure, so mark the block for retirement  */
+ 		bi->needsRetiring = 1;
+ 		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
+ 		  (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND));
+-
+-
+ 	}
+ 
+ 	/* Delete the chunk */
+@@ -1081,12 +1105,12 @@ static void yaffs_HandleWriteChunkError(
+ 
+ /*---------------- Name handling functions ------------*/
+ 
+-static __u16 yaffs_CalcNameSum(const YCHAR * name)
++static __u16 yaffs_CalcNameSum(const YCHAR *name)
+ {
+ 	__u16 sum = 0;
+ 	__u16 i = 1;
+ 
+-	YUCHAR *bname = (YUCHAR *) name;
++	const YUCHAR *bname = (const YUCHAR *) name;
+ 	if (bname) {
+ 		while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) {
+ 
+@@ -1102,14 +1126,14 @@ static __u16 yaffs_CalcNameSum(const YCH
+ 	return sum;
+ }
+ 
+-static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name)
++static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name)
+ {
+ #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+-	if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) {
++	memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1));
++	if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH)
+ 		yaffs_strcpy(obj->shortName, name);
+-	} else {
++	else
+ 		obj->shortName[0] = _Y('\0');
+-	}
+ #endif
+ 	obj->sum = yaffs_CalcNameSum(name);
+ }
+@@ -1126,7 +1150,7 @@ static void yaffs_SetObjectName(yaffs_Ob
+  * Don't use this function directly
+  */
+ 
+-static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes)
++static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes)
+ {
+ 	int i;
+ 	int tnodeSize;
+@@ -1143,6 +1167,9 @@ static int yaffs_CreateTnodes(yaffs_Devi
+ 	 * Must be a multiple of 32-bits  */
+ 	tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
+ 
++	if (tnodeSize < sizeof(yaffs_Tnode))
++		tnodeSize = sizeof(yaffs_Tnode);
++
+ 	/* make these things */
+ 
+ 	newTnodes = YMALLOC(nTnodes * tnodeSize);
+@@ -1150,7 +1177,7 @@ static int yaffs_CreateTnodes(yaffs_Devi
+ 
+ 	if (!newTnodes) {
+ 		T(YAFFS_TRACE_ERROR,
+-		  (TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
++			(TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
+ 		return YAFFS_FAIL;
+ 	}
+ 
+@@ -1170,7 +1197,7 @@ static int yaffs_CreateTnodes(yaffs_Devi
+ 	dev->freeTnodes = newTnodes;
+ #else
+ 	/* New hookup for wide tnodes */
+-	for(i = 0; i < nTnodes -1; i++) {
++	for (i = 0; i < nTnodes - 1; i++) {
+ 		curr = (yaffs_Tnode *) &mem[i * tnodeSize];
+ 		next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize];
+ 		curr->internal[0] = next;
+@@ -1197,7 +1224,6 @@ static int yaffs_CreateTnodes(yaffs_Devi
+ 		  (TSTR
+ 		   ("yaffs: Could not add tnodes to management list" TENDSTR)));
+ 		   return YAFFS_FAIL;
+-
+ 	} else {
+ 		tnl->tnodes = newTnodes;
+ 		tnl->next = dev->allocatedTnodeList;
+@@ -1211,14 +1237,13 @@ static int yaffs_CreateTnodes(yaffs_Devi
+ 
+ /* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */
+ 
+-static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev)
++static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev)
+ {
+ 	yaffs_Tnode *tn = NULL;
+ 
+ 	/* If there are none left make more */
+-	if (!dev->freeTnodes) {
++	if (!dev->freeTnodes)
+ 		yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES);
+-	}
+ 
+ 	if (dev->freeTnodes) {
+ 		tn = dev->freeTnodes;
+@@ -1233,21 +1258,27 @@ static yaffs_Tnode *yaffs_GetTnodeRaw(ya
+ 		dev->nFreeTnodes--;
+ 	}
+ 
++	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
++
+ 	return tn;
+ }
+ 
+-static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev)
++static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev)
+ {
+ 	yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev);
++	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
+ 
+-	if(tn)
+-		memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
++	if (tnodeSize < sizeof(yaffs_Tnode))
++		tnodeSize = sizeof(yaffs_Tnode);
++
++	if (tn)
++		memset(tn, 0, tnodeSize);
+ 
+ 	return tn;
+ }
+ 
+ /* FreeTnode frees up a tnode and puts it back on the free list */
+-static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn)
++static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn)
+ {
+ 	if (tn) {
+ #ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
+@@ -1262,9 +1293,10 @@ static void yaffs_FreeTnode(yaffs_Device
+ 		dev->freeTnodes = tn;
+ 		dev->nFreeTnodes++;
+ 	}
++	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
+ }
+ 
+-static void yaffs_DeinitialiseTnodes(yaffs_Device * dev)
++static void yaffs_DeinitialiseTnodes(yaffs_Device *dev)
+ {
+ 	/* Free the list of allocated tnodes */
+ 	yaffs_TnodeList *tmp;
+@@ -1282,71 +1314,72 @@ static void yaffs_DeinitialiseTnodes(yaf
+ 	dev->nFreeTnodes = 0;
+ }
+ 
+-static void yaffs_InitialiseTnodes(yaffs_Device * dev)
++static void yaffs_InitialiseTnodes(yaffs_Device *dev)
+ {
+ 	dev->allocatedTnodeList = NULL;
+ 	dev->freeTnodes = NULL;
+ 	dev->nFreeTnodes = 0;
+ 	dev->nTnodesCreated = 0;
+-
+ }
+ 
+ 
+-void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsigned val)
++void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos,
++		unsigned val)
+ {
+-  __u32 *map = (__u32 *)tn;
+-  __u32 bitInMap;
+-  __u32 bitInWord;
+-  __u32 wordInMap;
+-  __u32 mask;
++	__u32 *map = (__u32 *)tn;
++	__u32 bitInMap;
++	__u32 bitInWord;
++	__u32 wordInMap;
++	__u32 mask;
+ 
+-  pos &= YAFFS_TNODES_LEVEL0_MASK;
+-  val >>= dev->chunkGroupBits;
++	pos &= YAFFS_TNODES_LEVEL0_MASK;
++	val >>= dev->chunkGroupBits;
+ 
+-  bitInMap = pos * dev->tnodeWidth;
+-  wordInMap = bitInMap /32;
+-  bitInWord = bitInMap & (32 -1);
++	bitInMap = pos * dev->tnodeWidth;
++	wordInMap = bitInMap / 32;
++	bitInWord = bitInMap & (32 - 1);
+ 
+-  mask = dev->tnodeMask << bitInWord;
++	mask = dev->tnodeMask << bitInWord;
+ 
+-  map[wordInMap] &= ~mask;
+-  map[wordInMap] |= (mask & (val << bitInWord));
++	map[wordInMap] &= ~mask;
++	map[wordInMap] |= (mask & (val << bitInWord));
+ 
+-  if(dev->tnodeWidth > (32-bitInWord)) {
+-    bitInWord = (32 - bitInWord);
+-    wordInMap++;;
+-    mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord);
+-    map[wordInMap] &= ~mask;
+-    map[wordInMap] |= (mask & (val >> bitInWord));
+-  }
++	if (dev->tnodeWidth > (32 - bitInWord)) {
++		bitInWord = (32 - bitInWord);
++		wordInMap++;;
++		mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord);
++		map[wordInMap] &= ~mask;
++		map[wordInMap] |= (mask & (val >> bitInWord));
++	}
+ }
+ 
+-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos)
++static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
++		unsigned pos)
+ {
+-  __u32 *map = (__u32 *)tn;
+-  __u32 bitInMap;
+-  __u32 bitInWord;
+-  __u32 wordInMap;
+-  __u32 val;
++	__u32 *map = (__u32 *)tn;
++	__u32 bitInMap;
++	__u32 bitInWord;
++	__u32 wordInMap;
++	__u32 val;
+ 
+-  pos &= YAFFS_TNODES_LEVEL0_MASK;
++	pos &= YAFFS_TNODES_LEVEL0_MASK;
+ 
+-  bitInMap = pos * dev->tnodeWidth;
+-  wordInMap = bitInMap /32;
+-  bitInWord = bitInMap & (32 -1);
++	bitInMap = pos * dev->tnodeWidth;
++	wordInMap = bitInMap / 32;
++	bitInWord = bitInMap & (32 - 1);
+ 
+-  val = map[wordInMap] >> bitInWord;
++	val = map[wordInMap] >> bitInWord;
+ 
+-  if(dev->tnodeWidth > (32-bitInWord)) {
+-    bitInWord = (32 - bitInWord);
+-    wordInMap++;;
+-    val |= (map[wordInMap] << bitInWord);
+-  }
++	if	(dev->tnodeWidth > (32 - bitInWord)) {
++		bitInWord = (32 - bitInWord);
++		wordInMap++;;
++		val |= (map[wordInMap] << bitInWord);
++	}
+ 
+-  val &= dev->tnodeMask;
+-  val <<= dev->chunkGroupBits;
++	val &= dev->tnodeMask;
++	val <<= dev->chunkGroupBits;
+ 
+-  return val;
++	return val;
+ }
+ 
+ /* ------------------- End of individual tnode manipulation -----------------*/
+@@ -1357,24 +1390,21 @@ static __u32 yaffs_GetChunkGroupBase(yaf
+  */
+ 
+ /* FindLevel0Tnode finds the level 0 tnode, if one exists. */
+-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
+-					  yaffs_FileStructure * fStruct,
+-					  __u32 chunkId)
++static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
++					yaffs_FileStructure *fStruct,
++					__u32 chunkId)
+ {
+-
+ 	yaffs_Tnode *tn = fStruct->top;
+ 	__u32 i;
+ 	int requiredTallness;
+ 	int level = fStruct->topLevel;
+ 
+ 	/* Check sane level and chunk Id */
+-	if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) {
++	if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL)
+ 		return NULL;
+-	}
+ 
+-	if (chunkId > YAFFS_MAX_CHUNK_ID) {
++	if (chunkId > YAFFS_MAX_CHUNK_ID)
+ 		return NULL;
+-	}
+ 
+ 	/* First check we're tall enough (ie enough topLevel) */
+ 
+@@ -1385,22 +1415,17 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod
+ 		requiredTallness++;
+ 	}
+ 
+-	if (requiredTallness > fStruct->topLevel) {
+-		/* Not tall enough, so we can't find it, return NULL. */
+-		return NULL;
+-	}
++	if (requiredTallness > fStruct->topLevel)
++		return NULL; /* Not tall enough, so we can't find it */
+ 
+ 	/* Traverse down to level 0 */
+ 	while (level > 0 && tn) {
+-		tn = tn->
+-		    internal[(chunkId >>
+-			       ( YAFFS_TNODES_LEVEL0_BITS +
+-			         (level - 1) *
+-			         YAFFS_TNODES_INTERNAL_BITS)
+-			      ) &
+-			     YAFFS_TNODES_INTERNAL_MASK];
++		tn = tn->internal[(chunkId >>
++			(YAFFS_TNODES_LEVEL0_BITS +
++				(level - 1) *
++				YAFFS_TNODES_INTERNAL_BITS)) &
++			YAFFS_TNODES_INTERNAL_MASK];
+ 		level--;
+-
+ 	}
+ 
+ 	return tn;
+@@ -1417,12 +1442,11 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod
+  *  be plugged into the ttree.
+  */
+ 
+-static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev,
+-					       yaffs_FileStructure * fStruct,
+-					       __u32 chunkId,
+-					       yaffs_Tnode *passedTn)
++static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev,
++					yaffs_FileStructure *fStruct,
++					__u32 chunkId,
++					yaffs_Tnode *passedTn)
+ {
+-
+ 	int requiredTallness;
+ 	int i;
+ 	int l;
+@@ -1432,13 +1456,11 @@ static yaffs_Tnode *yaffs_AddOrFindLevel
+ 
+ 
+ 	/* Check sane level and page Id */
+-	if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) {
++	if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL)
+ 		return NULL;
+-	}
+ 
+-	if (chunkId > YAFFS_MAX_CHUNK_ID) {
++	if (chunkId > YAFFS_MAX_CHUNK_ID)
+ 		return NULL;
+-	}
+ 
+ 	/* First check we're tall enough (ie enough topLevel) */
+ 
+@@ -1451,7 +1473,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel
+ 
+ 
+ 	if (requiredTallness > fStruct->topLevel) {
+-		/* Not tall enough,gotta make the tree taller */
++		/* Not tall enough, gotta make the tree taller */
+ 		for (i = fStruct->topLevel; i < requiredTallness; i++) {
+ 
+ 			tn = yaffs_GetTnode(dev);
+@@ -1473,27 +1495,27 @@ static yaffs_Tnode *yaffs_AddOrFindLevel
+ 	l = fStruct->topLevel;
+ 	tn = fStruct->top;
+ 
+-	if(l > 0) {
++	if (l > 0) {
+ 		while (l > 0 && tn) {
+ 			x = (chunkId >>
+-			     ( YAFFS_TNODES_LEVEL0_BITS +
++			     (YAFFS_TNODES_LEVEL0_BITS +
+ 			      (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) &
+ 			    YAFFS_TNODES_INTERNAL_MASK;
+ 
+ 
+-			if((l>1) && !tn->internal[x]){
++			if ((l > 1) && !tn->internal[x]) {
+ 				/* Add missing non-level-zero tnode */
+ 				tn->internal[x] = yaffs_GetTnode(dev);
+ 
+-			} else if(l == 1) {
++			} else if (l == 1) {
+ 				/* Looking from level 1 at level 0 */
+-			 	if (passedTn) {
++				if (passedTn) {
+ 					/* If we already have one, then release it.*/
+-					if(tn->internal[x])
+-						yaffs_FreeTnode(dev,tn->internal[x]);
++					if (tn->internal[x])
++						yaffs_FreeTnode(dev, tn->internal[x]);
+ 					tn->internal[x] = passedTn;
+ 
+-				} else if(!tn->internal[x]) {
++				} else if (!tn->internal[x]) {
+ 					/* Don't have one, none passed in */
+ 					tn->internal[x] = yaffs_GetTnode(dev);
+ 				}
+@@ -1504,31 +1526,29 @@ static yaffs_Tnode *yaffs_AddOrFindLevel
+ 		}
+ 	} else {
+ 		/* top is level 0 */
+-		if(passedTn) {
+-			memcpy(tn,passedTn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
+-			yaffs_FreeTnode(dev,passedTn);
++		if (passedTn) {
++			memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
++			yaffs_FreeTnode(dev, passedTn);
+ 		}
+ 	}
+ 
+ 	return tn;
+ }
+ 
+-static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk,
+-				  yaffs_ExtendedTags * tags, int objectId,
+-				  int chunkInInode)
++static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk,
++				yaffs_ExtendedTags *tags, int objectId,
++				int chunkInInode)
+ {
+ 	int j;
+ 
+ 	for (j = 0; theChunk && j < dev->chunkGroupSize; j++) {
+-		if (yaffs_CheckChunkBit
+-		    (dev, theChunk / dev->nChunksPerBlock,
+-		     theChunk % dev->nChunksPerBlock)) {
++		if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock,
++				theChunk % dev->nChunksPerBlock)) {
+ 			yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL,
+ 							tags);
+ 			if (yaffs_TagsMatch(tags, objectId, chunkInInode)) {
+ 				/* found it; */
+ 				return theChunk;
+-
+ 			}
+ 		}
+ 		theChunk++;
+@@ -1543,7 +1563,7 @@ static int yaffs_FindChunkInGroup(yaffs_
+  * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete.
+  */
+ 
+-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level,
++static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
+ 			      int chunkOffset, int *limit)
+ {
+ 	int i;
+@@ -1557,7 +1577,6 @@ static int yaffs_DeleteWorker(yaffs_Obje
+ 
+ 	if (tn) {
+ 		if (level > 0) {
+-
+ 			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
+ 			     i--) {
+ 				if (tn->internal[i]) {
+@@ -1565,17 +1584,17 @@ static int yaffs_DeleteWorker(yaffs_Obje
+ 						allDone = 0;
+ 					} else {
+ 						allDone =
+-						    yaffs_DeleteWorker(in,
+-								       tn->
+-								       internal
+-								       [i],
+-								       level -
+-								       1,
+-								       (chunkOffset
++							yaffs_DeleteWorker(in,
++								tn->
++								internal
++								[i],
++								level -
++								1,
++								(chunkOffset
+ 									<<
+ 									YAFFS_TNODES_INTERNAL_BITS)
+-								       + i,
+-								       limit);
++								+ i,
++								limit);
+ 					}
+ 					if (allDone) {
+ 						yaffs_FreeTnode(dev,
+@@ -1584,27 +1603,25 @@ static int yaffs_DeleteWorker(yaffs_Obje
+ 						tn->internal[i] = NULL;
+ 					}
+ 				}
+-
+ 			}
+ 			return (allDone) ? 1 : 0;
+ 		} else if (level == 0) {
+ 			int hitLimit = 0;
+ 
+ 			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit;
+-			     i--) {
+-			        theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
++					i--) {
++				theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+ 				if (theChunk) {
+ 
+-					chunkInInode =
+-					    (chunkOffset <<
+-					     YAFFS_TNODES_LEVEL0_BITS) + i;
++					chunkInInode = (chunkOffset <<
++						YAFFS_TNODES_LEVEL0_BITS) + i;
+ 
+ 					foundChunk =
+-					    yaffs_FindChunkInGroup(dev,
+-								   theChunk,
+-								   &tags,
+-								   in->objectId,
+-								   chunkInInode);
++						yaffs_FindChunkInGroup(dev,
++								theChunk,
++								&tags,
++								in->objectId,
++								chunkInInode);
+ 
+ 					if (foundChunk > 0) {
+ 						yaffs_DeleteChunk(dev,
+@@ -1613,14 +1630,13 @@ static int yaffs_DeleteWorker(yaffs_Obje
+ 						in->nDataChunks--;
+ 						if (limit) {
+ 							*limit = *limit - 1;
+-							if (*limit <= 0) {
++							if (*limit <= 0)
+ 								hitLimit = 1;
+-							}
+ 						}
+ 
+ 					}
+ 
+-					yaffs_PutLevel0Tnode(dev,tn,i,0);
++					yaffs_PutLevel0Tnode(dev, tn, i, 0);
+ 				}
+ 
+ 			}
+@@ -1634,9 +1650,8 @@ static int yaffs_DeleteWorker(yaffs_Obje
+ 
+ }
+ 
+-static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk)
++static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk)
+ {
+-
+ 	yaffs_BlockInfo *theBlock;
+ 
+ 	T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk));
+@@ -1654,7 +1669,7 @@ static void yaffs_SoftDeleteChunk(yaffs_
+  * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted.
+  */
+ 
+-static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn,
++static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn,
+ 				  __u32 level, int chunkOffset)
+ {
+ 	int i;
+@@ -1691,14 +1706,14 @@ static int yaffs_SoftDeleteWorker(yaffs_
+ 		} else if (level == 0) {
+ 
+ 			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) {
+-				theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
++				theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+ 				if (theChunk) {
+ 					/* Note this does not find the real chunk, only the chunk group.
+ 					 * We make an assumption that a chunk group is not larger than
+ 					 * a block.
+ 					 */
+ 					yaffs_SoftDeleteChunk(dev, theChunk);
+-					yaffs_PutLevel0Tnode(dev,tn,i,0);
++					yaffs_PutLevel0Tnode(dev, tn, i, 0);
+ 				}
+ 
+ 			}
+@@ -1712,7 +1727,7 @@ static int yaffs_SoftDeleteWorker(yaffs_
+ 
+ }
+ 
+-static void yaffs_SoftDeleteFile(yaffs_Object * obj)
++static void yaffs_SoftDeleteFile(yaffs_Object *obj)
+ {
+ 	if (obj->deleted &&
+ 	    obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) {
+@@ -1746,8 +1761,8 @@ static void yaffs_SoftDeleteFile(yaffs_O
+  * by a special case.
+  */
+ 
+-static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device * dev, yaffs_Tnode * tn,
+-				      __u32 level, int del0)
++static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn,
++				__u32 level, int del0)
+ {
+ 	int i;
+ 	int hasData;
+@@ -1763,9 +1778,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya
+ 						      (i == 0) ? del0 : 1);
+ 			}
+ 
+-			if (tn->internal[i]) {
++			if (tn->internal[i])
+ 				hasData++;
+-			}
+ 		}
+ 
+ 		if (hasData == 0 && del0) {
+@@ -1781,8 +1795,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya
+ 
+ }
+ 
+-static int yaffs_PruneFileStructure(yaffs_Device * dev,
+-				    yaffs_FileStructure * fStruct)
++static int yaffs_PruneFileStructure(yaffs_Device *dev,
++				yaffs_FileStructure *fStruct)
+ {
+ 	int i;
+ 	int hasData;
+@@ -1805,9 +1819,8 @@ static int yaffs_PruneFileStructure(yaff
+ 
+ 			hasData = 0;
+ 			for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) {
+-				if (tn->internal[i]) {
++				if (tn->internal[i])
+ 					hasData++;
+-				}
+ 			}
+ 
+ 			if (!hasData) {
+@@ -1828,7 +1841,7 @@ static int yaffs_PruneFileStructure(yaff
+ /* yaffs_CreateFreeObjects creates a bunch more objects and
+  * adds them to the object free list.
+  */
+-static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects)
++static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects)
+ {
+ 	int i;
+ 	yaffs_Object *newObjects;
+@@ -1842,9 +1855,9 @@ static int yaffs_CreateFreeObjects(yaffs
+ 	list = YMALLOC(sizeof(yaffs_ObjectList));
+ 
+ 	if (!newObjects || !list) {
+-		if(newObjects)
++		if (newObjects)
+ 			YFREE(newObjects);
+-		if(list)
++		if (list)
+ 			YFREE(list);
+ 		T(YAFFS_TRACE_ALLOCATE,
+ 		  (TSTR("yaffs: Could not allocate more objects" TENDSTR)));
+@@ -1854,7 +1867,7 @@ static int yaffs_CreateFreeObjects(yaffs
+ 	/* Hook them into the free list */
+ 	for (i = 0; i < nObjects - 1; i++) {
+ 		newObjects[i].siblings.next =
+-		    (struct list_head *)(&newObjects[i + 1]);
++				(struct ylist_head *)(&newObjects[i + 1]);
+ 	}
+ 
+ 	newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects;
+@@ -1873,85 +1886,109 @@ static int yaffs_CreateFreeObjects(yaffs
+ 
+ 
+ /* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */
+-static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev)
++static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev)
+ {
+ 	yaffs_Object *tn = NULL;
+ 
++#ifdef VALGRIND_TEST
++	tn = YMALLOC(sizeof(yaffs_Object));
++#else
+ 	/* If there are none left make more */
+-	if (!dev->freeObjects) {
++	if (!dev->freeObjects)
+ 		yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS);
+-	}
+ 
+ 	if (dev->freeObjects) {
+ 		tn = dev->freeObjects;
+ 		dev->freeObjects =
+-		    (yaffs_Object *) (dev->freeObjects->siblings.next);
++			(yaffs_Object *) (dev->freeObjects->siblings.next);
+ 		dev->nFreeObjects--;
+-
++	}
++#endif
++	if (tn) {
+ 		/* Now sweeten it up... */
+ 
+ 		memset(tn, 0, sizeof(yaffs_Object));
++		tn->beingCreated = 1;
++
+ 		tn->myDev = dev;
+-		tn->chunkId = -1;
++		tn->hdrChunk = 0;
+ 		tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN;
+-		INIT_LIST_HEAD(&(tn->hardLinks));
+-		INIT_LIST_HEAD(&(tn->hashLink));
+-		INIT_LIST_HEAD(&tn->siblings);
++		YINIT_LIST_HEAD(&(tn->hardLinks));
++		YINIT_LIST_HEAD(&(tn->hashLink));
++		YINIT_LIST_HEAD(&tn->siblings);
++
++
++		/* Now make the directory sane */
++		if (dev->rootDir) {
++			tn->parent = dev->rootDir;
++			ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children);
++		}
+ 
+ 		/* Add it to the lost and found directory.
+ 		 * NB Can't put root or lostNFound in lostNFound so
+ 		 * check if lostNFound exists first
+ 		 */
+-		if (dev->lostNFoundDir) {
++		if (dev->lostNFoundDir)
+ 			yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn);
+-		}
++
++		tn->beingCreated = 0;
+ 	}
+ 
++	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
++
+ 	return tn;
+ }
+ 
+-static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device * dev, int number,
++static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number,
+ 					       __u32 mode)
+ {
+ 
+ 	yaffs_Object *obj =
+ 	    yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY);
+ 	if (obj) {
+-		obj->fake = 1;		/* it is fake so it has no NAND presence... */
++		obj->fake = 1;		/* it is fake so it might have no NAND presence... */
+ 		obj->renameAllowed = 0;	/* ... and we're not allowed to rename it... */
+ 		obj->unlinkAllowed = 0;	/* ... or unlink it */
+ 		obj->deleted = 0;
+ 		obj->unlinked = 0;
+ 		obj->yst_mode = mode;
+ 		obj->myDev = dev;
+-		obj->chunkId = 0;	/* Not a valid chunk. */
++		obj->hdrChunk = 0;	/* Not a valid chunk. */
+ 	}
+ 
+ 	return obj;
+ 
+ }
+ 
+-static void yaffs_UnhashObject(yaffs_Object * tn)
++static void yaffs_UnhashObject(yaffs_Object *tn)
+ {
+ 	int bucket;
+ 	yaffs_Device *dev = tn->myDev;
+ 
+ 	/* If it is still linked into the bucket list, free from the list */
+-	if (!list_empty(&tn->hashLink)) {
+-		list_del_init(&tn->hashLink);
++	if (!ylist_empty(&tn->hashLink)) {
++		ylist_del_init(&tn->hashLink);
+ 		bucket = yaffs_HashFunction(tn->objectId);
+ 		dev->objectBucket[bucket].count--;
+ 	}
+-
+ }
+ 
+ /*  FreeObject frees up a Object and puts it back on the free list */
+-static void yaffs_FreeObject(yaffs_Object * tn)
++static void yaffs_FreeObject(yaffs_Object *tn)
+ {
+-
+ 	yaffs_Device *dev = tn->myDev;
+ 
+-#ifdef  __KERNEL__
++#ifdef __KERNEL__
++	T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode));
++#endif
++
++	if (tn->parent)
++		YBUG();
++	if (!ylist_empty(&tn->siblings))
++		YBUG();
++
++
++#ifdef __KERNEL__
+ 	if (tn->myInode) {
+ 		/* We're still hooked up to a cached inode.
+ 		 * Don't delete now, but mark for later deletion
+@@ -1963,24 +2000,28 @@ static void yaffs_FreeObject(yaffs_Objec
+ 
+ 	yaffs_UnhashObject(tn);
+ 
++#ifdef VALGRIND_TEST
++	YFREE(tn);
++#else
+ 	/* Link into the free list. */
+-	tn->siblings.next = (struct list_head *)(dev->freeObjects);
++	tn->siblings.next = (struct ylist_head *)(dev->freeObjects);
+ 	dev->freeObjects = tn;
+ 	dev->nFreeObjects++;
++#endif
++	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
+ }
+ 
+ #ifdef __KERNEL__
+ 
+-void yaffs_HandleDeferedFree(yaffs_Object * obj)
++void yaffs_HandleDeferedFree(yaffs_Object *obj)
+ {
+-	if (obj->deferedFree) {
++	if (obj->deferedFree)
+ 		yaffs_FreeObject(obj);
+-	}
+ }
+ 
+ #endif
+ 
+-static void yaffs_DeinitialiseObjects(yaffs_Device * dev)
++static void yaffs_DeinitialiseObjects(yaffs_Device *dev)
+ {
+ 	/* Free the list of allocated Objects */
+ 
+@@ -1998,7 +2039,7 @@ static void yaffs_DeinitialiseObjects(ya
+ 	dev->nFreeObjects = 0;
+ }
+ 
+-static void yaffs_InitialiseObjects(yaffs_Device * dev)
++static void yaffs_InitialiseObjects(yaffs_Device *dev)
+ {
+ 	int i;
+ 
+@@ -2007,15 +2048,14 @@ static void yaffs_InitialiseObjects(yaff
+ 	dev->nFreeObjects = 0;
+ 
+ 	for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
+-		INIT_LIST_HEAD(&dev->objectBucket[i].list);
++		YINIT_LIST_HEAD(&dev->objectBucket[i].list);
+ 		dev->objectBucket[i].count = 0;
+ 	}
+-
+ }
+ 
+-static int yaffs_FindNiceObjectBucket(yaffs_Device * dev)
++static int yaffs_FindNiceObjectBucket(yaffs_Device *dev)
+ {
+-	static int x = 0;
++	static int x;
+ 	int i;
+ 	int l = 999;
+ 	int lowest = 999999;
+@@ -2049,7 +2089,7 @@ static int yaffs_FindNiceObjectBucket(ya
+ 	return l;
+ }
+ 
+-static int yaffs_CreateNewObjectNumber(yaffs_Device * dev)
++static int yaffs_CreateNewObjectNumber(yaffs_Device *dev)
+ {
+ 	int bucket = yaffs_FindNiceObjectBucket(dev);
+ 
+@@ -2058,7 +2098,7 @@ static int yaffs_CreateNewObjectNumber(y
+ 	 */
+ 
+ 	int found = 0;
+-	struct list_head *i;
++	struct ylist_head *i;
+ 
+ 	__u32 n = (__u32) bucket;
+ 
+@@ -2068,41 +2108,38 @@ static int yaffs_CreateNewObjectNumber(y
+ 		found = 1;
+ 		n += YAFFS_NOBJECT_BUCKETS;
+ 		if (1 || dev->objectBucket[bucket].count > 0) {
+-			list_for_each(i, &dev->objectBucket[bucket].list) {
++			ylist_for_each(i, &dev->objectBucket[bucket].list) {
+ 				/* If there is already one in the list */
+-				if (i
+-				    && list_entry(i, yaffs_Object,
+-						  hashLink)->objectId == n) {
++				if (i && ylist_entry(i, yaffs_Object,
++						hashLink)->objectId == n) {
+ 					found = 0;
+ 				}
+ 			}
+ 		}
+ 	}
+ 
+-
+ 	return n;
+ }
+ 
+-static void yaffs_HashObject(yaffs_Object * in)
++static void yaffs_HashObject(yaffs_Object *in)
+ {
+ 	int bucket = yaffs_HashFunction(in->objectId);
+ 	yaffs_Device *dev = in->myDev;
+ 
+-	list_add(&in->hashLink, &dev->objectBucket[bucket].list);
++	ylist_add(&in->hashLink, &dev->objectBucket[bucket].list);
+ 	dev->objectBucket[bucket].count++;
+-
+ }
+ 
+-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number)
++yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number)
+ {
+ 	int bucket = yaffs_HashFunction(number);
+-	struct list_head *i;
++	struct ylist_head *i;
+ 	yaffs_Object *in;
+ 
+-	list_for_each(i, &dev->objectBucket[bucket].list) {
++	ylist_for_each(i, &dev->objectBucket[bucket].list) {
+ 		/* Look if it is in the list */
+ 		if (i) {
+-			in = list_entry(i, yaffs_Object, hashLink);
++			in = ylist_entry(i, yaffs_Object, hashLink);
+ 			if (in->objectId == number) {
+ #ifdef __KERNEL__
+ 				/* Don't tell the VFS about this one if it is defered free */
+@@ -2118,31 +2155,27 @@ yaffs_Object *yaffs_FindObjectByNumber(y
+ 	return NULL;
+ }
+ 
+-yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
++yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
+ 				    yaffs_ObjectType type)
+ {
+-
+ 	yaffs_Object *theObject;
+-	yaffs_Tnode *tn;
++	yaffs_Tnode *tn = NULL;
+ 
+-	if (number < 0) {
++	if (number < 0)
+ 		number = yaffs_CreateNewObjectNumber(dev);
+-	}
+ 
+ 	theObject = yaffs_AllocateEmptyObject(dev);
+-	if(!theObject)
++	if (!theObject)
+ 		return NULL;
+ 
+-	if(type == YAFFS_OBJECT_TYPE_FILE){
++	if (type == YAFFS_OBJECT_TYPE_FILE) {
+ 		tn = yaffs_GetTnode(dev);
+-		if(!tn){
++		if (!tn) {
+ 			yaffs_FreeObject(theObject);
+ 			return NULL;
+ 		}
+ 	}
+ 
+-
+-
+ 	if (theObject) {
+ 		theObject->fake = 0;
+ 		theObject->renameAllowed = 1;
+@@ -2171,8 +2204,8 @@ yaffs_Object *yaffs_CreateNewObject(yaff
+ 			theObject->variant.fileVariant.top = tn;
+ 			break;
+ 		case YAFFS_OBJECT_TYPE_DIRECTORY:
+-			INIT_LIST_HEAD(&theObject->variant.directoryVariant.
+-				       children);
++			YINIT_LIST_HEAD(&theObject->variant.directoryVariant.
++					children);
+ 			break;
+ 		case YAFFS_OBJECT_TYPE_SYMLINK:
+ 		case YAFFS_OBJECT_TYPE_HARDLINK:
+@@ -2188,32 +2221,30 @@ yaffs_Object *yaffs_CreateNewObject(yaff
+ 	return theObject;
+ }
+ 
+-static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev,
++static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev,
+ 						      int number,
+ 						      yaffs_ObjectType type)
+ {
+ 	yaffs_Object *theObject = NULL;
+ 
+-	if (number > 0) {
++	if (number > 0)
+ 		theObject = yaffs_FindObjectByNumber(dev, number);
+-	}
+ 
+-	if (!theObject) {
++	if (!theObject)
+ 		theObject = yaffs_CreateNewObject(dev, number, type);
+-	}
+ 
+ 	return theObject;
+ 
+ }
+ 
+ 
+-static YCHAR *yaffs_CloneString(const YCHAR * str)
++static YCHAR *yaffs_CloneString(const YCHAR *str)
+ {
+ 	YCHAR *newStr = NULL;
+ 
+ 	if (str && *str) {
+ 		newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR));
+-		if(newStr)
++		if (newStr)
+ 			yaffs_strcpy(newStr, str);
+ 	}
+ 
+@@ -2229,29 +2260,31 @@ static YCHAR *yaffs_CloneString(const YC
+  */
+ 
+ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
+-				       yaffs_Object * parent,
+-				       const YCHAR * name,
++				       yaffs_Object *parent,
++				       const YCHAR *name,
+ 				       __u32 mode,
+ 				       __u32 uid,
+ 				       __u32 gid,
+-				       yaffs_Object * equivalentObject,
+-				       const YCHAR * aliasString, __u32 rdev)
++				       yaffs_Object *equivalentObject,
++				       const YCHAR *aliasString, __u32 rdev)
+ {
+ 	yaffs_Object *in;
+-	YCHAR *str;
++	YCHAR *str = NULL;
+ 
+ 	yaffs_Device *dev = parent->myDev;
+ 
+ 	/* Check if the entry exists. If it does then fail the call since we don't want a dup.*/
+-	if (yaffs_FindObjectByName(parent, name)) {
++	if (yaffs_FindObjectByName(parent, name))
+ 		return NULL;
+-	}
+ 
+ 	in = yaffs_CreateNewObject(dev, -1, type);
+ 
+-	if(type == YAFFS_OBJECT_TYPE_SYMLINK){
++	if (!in)
++		return YAFFS_FAIL;
++
++	if (type == YAFFS_OBJECT_TYPE_SYMLINK) {
+ 		str = yaffs_CloneString(aliasString);
+-		if(!str){
++		if (!str) {
+ 			yaffs_FreeObject(in);
+ 			return NULL;
+ 		}
+@@ -2260,7 +2293,7 @@ static yaffs_Object *yaffs_MknodObject(y
+ 
+ 
+ 	if (in) {
+-		in->chunkId = -1;
++		in->hdrChunk = 0;
+ 		in->valid = 1;
+ 		in->variantType = type;
+ 
+@@ -2293,10 +2326,10 @@ static yaffs_Object *yaffs_MknodObject(y
+ 			break;
+ 		case YAFFS_OBJECT_TYPE_HARDLINK:
+ 			in->variant.hardLinkVariant.equivalentObject =
+-			    equivalentObject;
++				equivalentObject;
+ 			in->variant.hardLinkVariant.equivalentObjectId =
+-			    equivalentObject->objectId;
+-			list_add(&in->hardLinks, &equivalentObject->hardLinks);
++				equivalentObject->objectId;
++			ylist_add(&in->hardLinks, &equivalentObject->hardLinks);
+ 			break;
+ 		case YAFFS_OBJECT_TYPE_FILE:
+ 		case YAFFS_OBJECT_TYPE_DIRECTORY:
+@@ -2308,7 +2341,7 @@ static yaffs_Object *yaffs_MknodObject(y
+ 
+ 		if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) {
+ 			/* Could not create the object header, fail the creation */
+-			yaffs_DestroyObject(in);
++			yaffs_DeleteObject(in);
+ 			in = NULL;
+ 		}
+ 
+@@ -2317,38 +2350,38 @@ static yaffs_Object *yaffs_MknodObject(y
+ 	return in;
+ }
+ 
+-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name,
+-			      __u32 mode, __u32 uid, __u32 gid)
++yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name,
++			__u32 mode, __u32 uid, __u32 gid)
+ {
+ 	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode,
+-				 uid, gid, NULL, NULL, 0);
++				uid, gid, NULL, NULL, 0);
+ }
+ 
+-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name,
+-				   __u32 mode, __u32 uid, __u32 gid)
++yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid)
+ {
+ 	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name,
+ 				 mode, uid, gid, NULL, NULL, 0);
+ }
+ 
+-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name,
+-				 __u32 mode, __u32 uid, __u32 gid, __u32 rdev)
++yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid, __u32 rdev)
+ {
+ 	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode,
+ 				 uid, gid, NULL, NULL, rdev);
+ }
+ 
+-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name,
+-				 __u32 mode, __u32 uid, __u32 gid,
+-				 const YCHAR * alias)
++yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid,
++				const YCHAR *alias)
+ {
+ 	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode,
+-				 uid, gid, NULL, alias, 0);
++				uid, gid, NULL, alias, 0);
+ }
+ 
+ /* yaffs_Link returns the object id of the equivalent object.*/
+-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name,
+-			 yaffs_Object * equivalentObject)
++yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name,
++			yaffs_Object *equivalentObject)
+ {
+ 	/* Get the real object in case we were fed a hard link as an equivalent object */
+ 	equivalentObject = yaffs_GetEquivalentObject(equivalentObject);
+@@ -2363,33 +2396,31 @@ yaffs_Object *yaffs_Link(yaffs_Object *
+ 
+ }
+ 
+-static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir,
+-				  const YCHAR * newName, int force, int shadows)
++static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir,
++				const YCHAR *newName, int force, int shadows)
+ {
+ 	int unlinkOp;
+ 	int deleteOp;
+ 
+ 	yaffs_Object *existingTarget;
+ 
+-	if (newDir == NULL) {
++	if (newDir == NULL)
+ 		newDir = obj->parent;	/* use the old directory */
+-	}
+ 
+ 	if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+-		   ("tragendy: yaffs_ChangeObjectName: newDir is not a directory"
++		   ("tragedy: yaffs_ChangeObjectName: newDir is not a directory"
+ 		    TENDSTR)));
+ 		YBUG();
+ 	}
+ 
+ 	/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
+-	if (obj->myDev->isYaffs2) {
++	if (obj->myDev->isYaffs2)
+ 		unlinkOp = (newDir == obj->myDev->unlinkedDir);
+-	} else {
++	else
+ 		unlinkOp = (newDir == obj->myDev->unlinkedDir
+ 			    && obj->variantType == YAFFS_OBJECT_TYPE_FILE);
+-	}
+ 
+ 	deleteOp = (newDir == obj->myDev->deletedDir);
+ 
+@@ -2415,40 +2446,40 @@ static int yaffs_ChangeObjectName(yaffs_
+ 			obj->unlinked = 1;
+ 
+ 		/* If it is a deletion then we mark it as a shrink for gc purposes. */
+-		if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows)>= 0)
++		if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0)
+ 			return YAFFS_OK;
+ 	}
+ 
+ 	return YAFFS_FAIL;
+ }
+ 
+-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
+-		       yaffs_Object * newDir, const YCHAR * newName)
++int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName,
++		yaffs_Object *newDir, const YCHAR *newName)
+ {
+-	yaffs_Object *obj;
+-	yaffs_Object *existingTarget;
++	yaffs_Object *obj = NULL;
++	yaffs_Object *existingTarget = NULL;
+ 	int force = 0;
+ 
++
++	if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
++		YBUG();
++	if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
++		YBUG();
++
+ #ifdef CONFIG_YAFFS_CASE_INSENSITIVE
+ 	/* Special case for case insemsitive systems (eg. WinCE).
+ 	 * While look-up is case insensitive, the name isn't.
+ 	 * Therefore we might want to change x.txt to X.txt
+ 	*/
+-	if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) {
++	if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0)
+ 		force = 1;
+-	}
+ #endif
+ 
++	else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH)
++		/* ENAMETOOLONG */
++		return YAFFS_FAIL;
++
+ 	obj = yaffs_FindObjectByName(oldDir, oldName);
+-	/* Check new name to long. */
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK &&
+-	    yaffs_strlen(newName) > YAFFS_MAX_ALIAS_LENGTH)
+-	  /* ENAMETOOLONG */
+-	  return YAFFS_FAIL;
+-	else if (obj->variantType != YAFFS_OBJECT_TYPE_SYMLINK &&
+-		 yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH)
+-	  /* ENAMETOOLONG */
+-	  return YAFFS_FAIL;
+ 
+ 	if (obj && obj->renameAllowed) {
+ 
+@@ -2456,8 +2487,8 @@ int yaffs_RenameObject(yaffs_Object * ol
+ 
+ 		existingTarget = yaffs_FindObjectByName(newDir, newName);
+ 		if (existingTarget &&
+-		    existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
+-		    !list_empty(&existingTarget->variant.directoryVariant.children)) {
++			existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
++			!ylist_empty(&existingTarget->variant.directoryVariant.children)) {
+ 			/* There is a target that is a non-empty directory, so we fail */
+ 			return YAFFS_FAIL;	/* EEXIST or ENOTEMPTY */
+ 		} else if (existingTarget && existingTarget != obj) {
+@@ -2465,7 +2496,7 @@ int yaffs_RenameObject(yaffs_Object * ol
+ 			 * but only if it isn't the same object
+ 			 */
+ 			yaffs_ChangeObjectName(obj, newDir, newName, force,
+-					       existingTarget->objectId);
++						existingTarget->objectId);
+ 			yaffs_UnlinkObject(existingTarget);
+ 		}
+ 
+@@ -2476,7 +2507,7 @@ int yaffs_RenameObject(yaffs_Object * ol
+ 
+ /*------------------------- Block Management and Page Allocation ----------------*/
+ 
+-static int yaffs_InitialiseBlocks(yaffs_Device * dev)
++static int yaffs_InitialiseBlocks(yaffs_Device *dev)
+ {
+ 	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
+ 
+@@ -2487,23 +2518,20 @@ static int yaffs_InitialiseBlocks(yaffs_
+ 
+ 	/* If the first allocation strategy fails, thry the alternate one */
+ 	dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo));
+-	if(!dev->blockInfo){
++	if (!dev->blockInfo) {
+ 		dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo));
+ 		dev->blockInfoAlt = 1;
+-	}
+-	else
++	} else
+ 		dev->blockInfoAlt = 0;
+ 
+-	if(dev->blockInfo){
+-
++	if (dev->blockInfo) {
+ 		/* Set up dynamic blockinfo stuff. */
+ 		dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */
+ 		dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks);
+-		if(!dev->chunkBits){
++		if (!dev->chunkBits) {
+ 			dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks);
+ 			dev->chunkBitsAlt = 1;
+-		}
+-		else
++		} else
+ 			dev->chunkBitsAlt = 0;
+ 	}
+ 
+@@ -2514,30 +2542,29 @@ static int yaffs_InitialiseBlocks(yaffs_
+ 	}
+ 
+ 	return YAFFS_FAIL;
+-
+ }
+ 
+-static void yaffs_DeinitialiseBlocks(yaffs_Device * dev)
++static void yaffs_DeinitialiseBlocks(yaffs_Device *dev)
+ {
+-	if(dev->blockInfoAlt && dev->blockInfo)
++	if (dev->blockInfoAlt && dev->blockInfo)
+ 		YFREE_ALT(dev->blockInfo);
+-	else if(dev->blockInfo)
++	else if (dev->blockInfo)
+ 		YFREE(dev->blockInfo);
+ 
+ 	dev->blockInfoAlt = 0;
+ 
+ 	dev->blockInfo = NULL;
+ 
+-	if(dev->chunkBitsAlt && dev->chunkBits)
++	if (dev->chunkBitsAlt && dev->chunkBits)
+ 		YFREE_ALT(dev->chunkBits);
+-	else if(dev->chunkBits)
++	else if (dev->chunkBits)
+ 		YFREE(dev->chunkBits);
+ 	dev->chunkBitsAlt = 0;
+ 	dev->chunkBits = NULL;
+ }
+ 
+-static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device * dev,
+-					    yaffs_BlockInfo * bi)
++static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev,
++					yaffs_BlockInfo *bi)
+ {
+ 	int i;
+ 	__u32 seq;
+@@ -2556,7 +2583,7 @@ static int yaffs_BlockNotDisqualifiedFro
+ 		seq = dev->sequenceNumber;
+ 
+ 		for (i = dev->internalStartBlock; i <= dev->internalEndBlock;
+-		     i++) {
++				i++) {
+ 			b = yaffs_GetBlockInfo(dev, i);
+ 			if (b->blockState == YAFFS_BLOCK_STATE_FULL &&
+ 			    (b->pagesInUse - b->softDeletions) <
+@@ -2571,38 +2598,36 @@ static int yaffs_BlockNotDisqualifiedFro
+ 	 * discarded pages.
+ 	 */
+ 	return (bi->sequenceNumber <= dev->oldestDirtySequence);
+-
+ }
+ 
+ /* FindDiretiestBlock is used to select the dirtiest block (or close enough)
+  * for garbage collection.
+  */
+ 
+-static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev,
+-					       int aggressive)
++static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev,
++					int aggressive)
+ {
+-
+ 	int b = dev->currentDirtyChecker;
+ 
+ 	int i;
+ 	int iterations;
+ 	int dirtiest = -1;
+ 	int pagesInUse = 0;
+-	int prioritised=0;
++	int prioritised = 0;
+ 	yaffs_BlockInfo *bi;
+ 	int pendingPrioritisedExist = 0;
+ 
+ 	/* First let's see if we need to grab a prioritised block */
+-	if(dev->hasPendingPrioritisedGCs){
+-		for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){
++	if (dev->hasPendingPrioritisedGCs) {
++		for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) {
+ 
+ 			bi = yaffs_GetBlockInfo(dev, i);
+-			//yaffs_VerifyBlock(dev,bi,i);
++			/* yaffs_VerifyBlock(dev,bi,i); */
+ 
+-			if(bi->gcPrioritise) {
++			if (bi->gcPrioritise) {
+ 				pendingPrioritisedExist = 1;
+-				if(bi->blockState == YAFFS_BLOCK_STATE_FULL &&
+-				   yaffs_BlockNotDisqualifiedFromGC(dev, bi)){
++				if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
++				   yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
+ 					pagesInUse = (bi->pagesInUse - bi->softDeletions);
+ 					dirtiest = i;
+ 					prioritised = 1;
+@@ -2611,7 +2636,7 @@ static int yaffs_FindBlockForGarbageColl
+ 			}
+ 		}
+ 
+-		if(!pendingPrioritisedExist) /* None found, so we can clear this */
++		if (!pendingPrioritisedExist) /* None found, so we can clear this */
+ 			dev->hasPendingPrioritisedGCs = 0;
+ 	}
+ 
+@@ -2623,31 +2648,28 @@ static int yaffs_FindBlockForGarbageColl
+ 
+ 	dev->nonAggressiveSkip--;
+ 
+-	if (!aggressive && (dev->nonAggressiveSkip > 0)) {
++	if (!aggressive && (dev->nonAggressiveSkip > 0))
+ 		return -1;
+-	}
+ 
+-	if(!prioritised)
++	if (!prioritised)
+ 		pagesInUse =
+-	    		(aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1;
++			(aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1;
+ 
+-	if (aggressive) {
++	if (aggressive)
+ 		iterations =
+ 		    dev->internalEndBlock - dev->internalStartBlock + 1;
+-	} else {
++	else {
+ 		iterations =
+ 		    dev->internalEndBlock - dev->internalStartBlock + 1;
+ 		iterations = iterations / 16;
+-		if (iterations > 200) {
++		if (iterations > 200)
+ 			iterations = 200;
+-		}
+ 	}
+ 
+ 	for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) {
+ 		b++;
+-		if (b < dev->internalStartBlock || b > dev->internalEndBlock) {
++		if (b < dev->internalStartBlock || b > dev->internalEndBlock)
+ 			b = dev->internalStartBlock;
+-		}
+ 
+ 		if (b < dev->internalStartBlock || b > dev->internalEndBlock) {
+ 			T(YAFFS_TRACE_ERROR,
+@@ -2657,17 +2679,9 @@ static int yaffs_FindBlockForGarbageColl
+ 
+ 		bi = yaffs_GetBlockInfo(dev, b);
+ 
+-#if 0
+-		if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) {
+-			dirtiest = b;
+-			pagesInUse = 0;
+-		}
+-		else
+-#endif
+-
+ 		if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
+-		       (bi->pagesInUse - bi->softDeletions) < pagesInUse &&
+-		        yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
++			(bi->pagesInUse - bi->softDeletions) < pagesInUse &&
++				yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
+ 			dirtiest = b;
+ 			pagesInUse = (bi->pagesInUse - bi->softDeletions);
+ 		}
+@@ -2678,19 +2692,18 @@ static int yaffs_FindBlockForGarbageColl
+ 	if (dirtiest > 0) {
+ 		T(YAFFS_TRACE_GC,
+ 		  (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest,
+-		   dev->nChunksPerBlock - pagesInUse,prioritised));
++		   dev->nChunksPerBlock - pagesInUse, prioritised));
+ 	}
+ 
+ 	dev->oldestDirtySequence = 0;
+ 
+-	if (dirtiest > 0) {
++	if (dirtiest > 0)
+ 		dev->nonAggressiveSkip = 4;
+-	}
+ 
+ 	return dirtiest;
+ }
+ 
+-static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo)
++static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo)
+ {
+ 	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo);
+ 
+@@ -2752,7 +2765,7 @@ static void yaffs_BlockBecameDirty(yaffs
+ 	}
+ }
+ 
+-static int yaffs_FindBlockForAllocation(yaffs_Device * dev)
++static int yaffs_FindBlockForAllocation(yaffs_Device *dev)
+ {
+ 	int i;
+ 
+@@ -2763,7 +2776,7 @@ static int yaffs_FindBlockForAllocation(
+ 		 * Can't get space to gc
+ 		 */
+ 		T(YAFFS_TRACE_ERROR,
+-		  (TSTR("yaffs tragedy: no more eraased blocks" TENDSTR)));
++		  (TSTR("yaffs tragedy: no more erased blocks" TENDSTR)));
+ 
+ 		return -1;
+ 	}
+@@ -2794,31 +2807,74 @@ static int yaffs_FindBlockForAllocation(
+ 
+ 	T(YAFFS_TRACE_ALWAYS,
+ 	  (TSTR
+-	   ("yaffs tragedy: no more eraased blocks, but there should have been %d"
++	   ("yaffs tragedy: no more erased blocks, but there should have been %d"
+ 	    TENDSTR), dev->nErasedBlocks));
+ 
+ 	return -1;
+ }
+ 
+ 
+-// Check if there's space to allocate...
+-// Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()?
+-static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev)
++
++static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev)
++{
++	if (!dev->nCheckpointBlocksRequired &&
++	   dev->isYaffs2) {
++		/* Not a valid value so recalculate */
++		int nBytes = 0;
++		int nBlocks;
++		int devBlocks = (dev->endBlock - dev->startBlock + 1);
++		int tnodeSize;
++
++		tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
++
++		if (tnodeSize < sizeof(yaffs_Tnode))
++			tnodeSize = sizeof(yaffs_Tnode);
++
++		nBytes += sizeof(yaffs_CheckpointValidity);
++		nBytes += sizeof(yaffs_CheckpointDevice);
++		nBytes += devBlocks * sizeof(yaffs_BlockInfo);
++		nBytes += devBlocks * dev->chunkBitmapStride;
++		nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects);
++		nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes);
++		nBytes += sizeof(yaffs_CheckpointValidity);
++		nBytes += sizeof(__u32); /* checksum*/
++
++		/* Round up and add 2 blocks to allow for some bad blocks, so add 3 */
++
++		nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3;
++
++		dev->nCheckpointBlocksRequired = nBlocks;
++	}
++
++	return dev->nCheckpointBlocksRequired;
++}
++
++/*
++ * Check if there's space to allocate...
++ * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()?
++ */
++static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev)
+ {
+ 	int reservedChunks;
+ 	int reservedBlocks = dev->nReservedBlocks;
+ 	int checkpointBlocks;
+ 
+-	checkpointBlocks =  dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint;
+-	if(checkpointBlocks < 0)
++	if (dev->isYaffs2) {
++		checkpointBlocks =  yaffs_CalcCheckpointBlocksRequired(dev) -
++				    dev->blocksInCheckpoint;
++		if (checkpointBlocks < 0)
++			checkpointBlocks = 0;
++	} else {
+ 		checkpointBlocks = 0;
++	}
+ 
+ 	reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock);
+ 
+ 	return (dev->nFreeChunks > reservedChunks);
+ }
+ 
+-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr)
++static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
++		yaffs_BlockInfo **blockUsedPtr)
+ {
+ 	int retVal;
+ 	yaffs_BlockInfo *bi;
+@@ -2835,7 +2891,7 @@ static int yaffs_AllocateChunk(yaffs_Dev
+ 	}
+ 
+ 	if (dev->nErasedBlocks < dev->nReservedBlocks
+-	    && dev->allocationPage == 0) {
++			&& dev->allocationPage == 0) {
+ 		T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR)));
+ 	}
+ 
+@@ -2844,10 +2900,10 @@ static int yaffs_AllocateChunk(yaffs_Dev
+ 		bi = yaffs_GetBlockInfo(dev, dev->allocationBlock);
+ 
+ 		retVal = (dev->allocationBlock * dev->nChunksPerBlock) +
+-		    dev->allocationPage;
++			dev->allocationPage;
+ 		bi->pagesInUse++;
+ 		yaffs_SetChunkBit(dev, dev->allocationBlock,
+-				  dev->allocationPage);
++				dev->allocationPage);
+ 
+ 		dev->allocationPage++;
+ 
+@@ -2859,43 +2915,43 @@ static int yaffs_AllocateChunk(yaffs_Dev
+ 			dev->allocationBlock = -1;
+ 		}
+ 
+-		if(blockUsedPtr)
++		if (blockUsedPtr)
+ 			*blockUsedPtr = bi;
+ 
+ 		return retVal;
+ 	}
+ 
+ 	T(YAFFS_TRACE_ERROR,
+-	  (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
++			(TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
+ 
+ 	return -1;
+ }
+ 
+-static int yaffs_GetErasedChunks(yaffs_Device * dev)
++static int yaffs_GetErasedChunks(yaffs_Device *dev)
+ {
+ 	int n;
+ 
+ 	n = dev->nErasedBlocks * dev->nChunksPerBlock;
+ 
+-	if (dev->allocationBlock > 0) {
++	if (dev->allocationBlock > 0)
+ 		n += (dev->nChunksPerBlock - dev->allocationPage);
+-	}
+ 
+ 	return n;
+ 
+ }
+ 
+-static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
++static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block,
++		int wholeBlock)
+ {
+ 	int oldChunk;
+ 	int newChunk;
+-	int chunkInBlock;
+ 	int markNAND;
+ 	int retVal = YAFFS_OK;
+ 	int cleanups = 0;
+ 	int i;
+ 	int isCheckpointBlock;
+ 	int matchingChunk;
++	int maxCopies;
+ 
+ 	int chunksBefore = yaffs_GetErasedChunks(dev);
+ 	int chunksAfter;
+@@ -2911,8 +2967,11 @@ static int yaffs_GarbageCollectBlock(yaf
+ 	bi->blockState = YAFFS_BLOCK_STATE_COLLECTING;
+ 
+ 	T(YAFFS_TRACE_TRACING,
+-	  (TSTR("Collecting block %d, in use %d, shrink %d, " TENDSTR), block,
+-	   bi->pagesInUse, bi->hasShrinkHeader));
++			(TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR),
++			 block,
++			 bi->pagesInUse,
++			 bi->hasShrinkHeader,
++			 wholeBlock));
+ 
+ 	/*yaffs_VerifyFreeChunks(dev); */
+ 
+@@ -2926,26 +2985,33 @@ static int yaffs_GarbageCollectBlock(yaf
+ 	dev->isDoingGC = 1;
+ 
+ 	if (isCheckpointBlock ||
+-	    !yaffs_StillSomeChunkBits(dev, block)) {
++			!yaffs_StillSomeChunkBits(dev, block)) {
+ 		T(YAFFS_TRACE_TRACING,
+-		  (TSTR
+-		   ("Collecting block %d that has no chunks in use" TENDSTR),
+-		   block));
++				(TSTR
++				 ("Collecting block %d that has no chunks in use" TENDSTR),
++				 block));
+ 		yaffs_BlockBecameDirty(dev, block);
+ 	} else {
+ 
+ 		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
+ 
+-		yaffs_VerifyBlock(dev,bi,block);
++		yaffs_VerifyBlock(dev, bi, block);
+ 
+-		for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock;
+-		     chunkInBlock < dev->nChunksPerBlock
+-		     && yaffs_StillSomeChunkBits(dev, block);
+-		     chunkInBlock++, oldChunk++) {
+-			if (yaffs_CheckChunkBit(dev, block, chunkInBlock)) {
++		maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10;
++		oldChunk = block * dev->nChunksPerBlock + dev->gcChunk;
++
++		for (/* init already done */;
++		     retVal == YAFFS_OK &&
++		     dev->gcChunk < dev->nChunksPerBlock &&
++		     (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) &&
++		     maxCopies > 0;
++		     dev->gcChunk++, oldChunk++) {
++			if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) {
+ 
+ 				/* This page is in use and might need to be copied off */
+ 
++				maxCopies--;
++
+ 				markNAND = 1;
+ 
+ 				yaffs_InitialiseTags(&tags);
+@@ -2959,22 +3025,22 @@ static int yaffs_GarbageCollectBlock(yaf
+ 
+ 				T(YAFFS_TRACE_GC_DETAIL,
+ 				  (TSTR
+-				   ("Collecting page %d, %d %d %d " TENDSTR),
+-				   chunkInBlock, tags.objectId, tags.chunkId,
++				   ("Collecting chunk in block %d, %d %d %d " TENDSTR),
++				   dev->gcChunk, tags.objectId, tags.chunkId,
+ 				   tags.byteCount));
+ 
+-				if(object && !yaffs_SkipVerification(dev)){
+-					if(tags.chunkId == 0)
+-						matchingChunk = object->chunkId;
+-					else if(object->softDeleted)
++				if (object && !yaffs_SkipVerification(dev)) {
++					if (tags.chunkId == 0)
++						matchingChunk = object->hdrChunk;
++					else if (object->softDeleted)
+ 						matchingChunk = oldChunk; /* Defeat the test */
+ 					else
+-						matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL);
++						matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL);
+ 
+-					if(oldChunk != matchingChunk)
++					if (oldChunk != matchingChunk)
+ 						T(YAFFS_TRACE_ERROR,
+ 						  (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR),
+-						  oldChunk,matchingChunk,tags.objectId, tags.chunkId));
++						  oldChunk, matchingChunk, tags.objectId, tags.chunkId));
+ 
+ 				}
+ 
+@@ -2986,9 +3052,11 @@ static int yaffs_GarbageCollectBlock(yaf
+ 					    tags.objectId, tags.chunkId, tags.byteCount));
+ 				}
+ 
+-				if (object && object->deleted
+-				    && tags.chunkId != 0) {
+-					/* Data chunk in a deleted file, throw it away
++				if (object &&
++				    object->deleted &&
++				    object->softDeleted &&
++				    tags.chunkId != 0) {
++					/* Data chunk in a soft deleted file, throw it away
+ 					 * It's a soft deleted data chunk,
+ 					 * No need to copy this, just forget about it and
+ 					 * fix up the object.
+@@ -3003,13 +3071,12 @@ static int yaffs_GarbageCollectBlock(yaf
+ 						cleanups++;
+ 					}
+ 					markNAND = 0;
+-				} else if (0
+-					   /* Todo object && object->deleted && object->nDataChunks == 0 */
+-					   ) {
++				} else if (0) {
++					/* Todo object && object->deleted && object->nDataChunks == 0 */
+ 					/* Deleted object header with no data chunks.
+ 					 * Can be discarded and the file deleted.
+ 					 */
+-					object->chunkId = 0;
++					object->hdrChunk = 0;
+ 					yaffs_FreeTnode(object->myDev,
+ 							object->variant.
+ 							fileVariant.top);
+@@ -3031,17 +3098,14 @@ static int yaffs_GarbageCollectBlock(yaf
+ 						 * We need to nuke the shrinkheader flags first
+ 						 * We no longer want the shrinkHeader flag since its work is done
+ 						 * and if it is left in place it will mess up scanning.
+-						 * Also, clear out any shadowing stuff
+ 						 */
+ 
+ 						yaffs_ObjectHeader *oh;
+ 						oh = (yaffs_ObjectHeader *)buffer;
+ 						oh->isShrink = 0;
+-						oh->shadowsObject = -1;
+-						tags.extraShadows = 0;
+ 						tags.extraIsShrinkHeader = 0;
+ 
+-						yaffs_VerifyObjectHeader(object,oh,&tags,1);
++						yaffs_VerifyObjectHeader(object, oh, &tags, 1);
+ 					}
+ 
+ 					newChunk =
+@@ -3055,7 +3119,7 @@ static int yaffs_GarbageCollectBlock(yaf
+ 
+ 						if (tags.chunkId == 0) {
+ 							/* It's a header */
+-							object->chunkId =  newChunk;
++							object->hdrChunk =  newChunk;
+ 							object->serial =   tags.serialNumber;
+ 						} else {
+ 							/* It's a data chunk */
+@@ -3067,7 +3131,8 @@ static int yaffs_GarbageCollectBlock(yaf
+ 					}
+ 				}
+ 
+-				yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
++				if (retVal == YAFFS_OK)
++					yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
+ 
+ 			}
+ 		}
+@@ -3098,18 +3163,25 @@ static int yaffs_GarbageCollectBlock(yaf
+ 
+ 	}
+ 
+-	yaffs_VerifyCollectedBlock(dev,bi,block);
++	yaffs_VerifyCollectedBlock(dev, bi, block);
+ 
+-	if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) {
++	chunksAfter = yaffs_GetErasedChunks(dev);
++	if (chunksBefore >= chunksAfter) {
+ 		T(YAFFS_TRACE_GC,
+ 		  (TSTR
+ 		   ("gc did not increase free chunks before %d after %d"
+ 		    TENDSTR), chunksBefore, chunksAfter));
+ 	}
+ 
++	/* If the gc completed then clear the current gcBlock so that we find another. */
++	if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) {
++		dev->gcBlock = -1;
++		dev->gcChunk = 0;
++	}
++
+ 	dev->isDoingGC = 0;
+ 
+-	return YAFFS_OK;
++	return retVal;
+ }
+ 
+ /* New garbage collector
+@@ -3121,7 +3193,7 @@ static int yaffs_GarbageCollectBlock(yaf
+  * The idea is to help clear out space in a more spread-out manner.
+  * Dunno if it really does anything useful.
+  */
+-static int yaffs_CheckGarbageCollection(yaffs_Device * dev)
++static int yaffs_CheckGarbageCollection(yaffs_Device *dev)
+ {
+ 	int block;
+ 	int aggressive;
+@@ -3142,8 +3214,8 @@ static int yaffs_CheckGarbageCollection(
+ 	do {
+ 		maxTries++;
+ 
+-		checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint);
+-		if(checkpointBlockAdjust < 0)
++		checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
++		if (checkpointBlockAdjust < 0)
+ 			checkpointBlockAdjust = 0;
+ 
+ 		if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) {
+@@ -3154,20 +3226,24 @@ static int yaffs_CheckGarbageCollection(
+ 			aggressive = 0;
+ 		}
+ 
+-		block = yaffs_FindBlockForGarbageCollection(dev, aggressive);
++		if (dev->gcBlock <= 0) {
++			dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive);
++			dev->gcChunk = 0;
++		}
++
++		block = dev->gcBlock;
+ 
+ 		if (block > 0) {
+ 			dev->garbageCollections++;
+-			if (!aggressive) {
++			if (!aggressive)
+ 				dev->passiveGarbageCollections++;
+-			}
+ 
+ 			T(YAFFS_TRACE_GC,
+ 			  (TSTR
+ 			   ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR),
+ 			   dev->nErasedBlocks, aggressive));
+ 
+-			gcOk = yaffs_GarbageCollectBlock(dev, block);
++			gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive);
+ 		}
+ 
+ 		if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) {
+@@ -3176,15 +3252,16 @@ static int yaffs_CheckGarbageCollection(
+ 			   ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d"
+ 			    TENDSTR), dev->nErasedBlocks, maxTries, block));
+ 		}
+-	} while ((dev->nErasedBlocks < dev->nReservedBlocks) && (block > 0)
+-		 && (maxTries < 2));
++	} while ((dev->nErasedBlocks < dev->nReservedBlocks) &&
++		 (block > 0) &&
++		 (maxTries < 2));
+ 
+ 	return aggressive ? gcOk : YAFFS_OK;
+ }
+ 
+ /*-------------------------  TAGS --------------------------------*/
+ 
+-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId,
++static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
+ 			   int chunkInObject)
+ {
+ 	return (tags->chunkId == chunkInObject &&
+@@ -3195,8 +3272,8 @@ static int yaffs_TagsMatch(const yaffs_E
+ 
+ /*-------------------- Data file manipulation -----------------*/
+ 
+-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode,
+-				 yaffs_ExtendedTags * tags)
++static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
++				 yaffs_ExtendedTags *tags)
+ {
+ 	/*Get the Tnode, then get the level 0 offset chunk offset */
+ 	yaffs_Tnode *tn;
+@@ -3214,7 +3291,7 @@ static int yaffs_FindChunkInFile(yaffs_O
+ 	tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
+ 
+ 	if (tn) {
+-		theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
++		theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
+ 
+ 		retVal =
+ 		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
+@@ -3223,8 +3300,8 @@ static int yaffs_FindChunkInFile(yaffs_O
+ 	return retVal;
+ }
+ 
+-static int yaffs_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode,
+-					  yaffs_ExtendedTags * tags)
++static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode,
++					  yaffs_ExtendedTags *tags)
+ {
+ 	/* Get the Tnode, then get the level 0 offset chunk offset */
+ 	yaffs_Tnode *tn;
+@@ -3243,29 +3320,23 @@ static int yaffs_FindAndDeleteChunkInFil
+ 
+ 	if (tn) {
+ 
+-		theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
++		theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
+ 
+ 		retVal =
+ 		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
+ 					   chunkInInode);
+ 
+ 		/* Delete the entry in the filestructure (if found) */
+-		if (retVal != -1) {
+-			yaffs_PutLevel0Tnode(dev,tn,chunkInInode,0);
+-		}
+-	} else {
+-		/*T(("No level 0 found for %d\n", chunkInInode)); */
++		if (retVal != -1)
++			yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0);
+ 	}
+ 
+-	if (retVal == -1) {
+-		/* T(("Could not find %d to delete\n",chunkInInode)); */
+-	}
+ 	return retVal;
+ }
+ 
+ #ifdef YAFFS_PARANOID
+ 
+-static int yaffs_CheckFileSanity(yaffs_Object * in)
++static int yaffs_CheckFileSanity(yaffs_Object *in)
+ {
+ 	int chunk;
+ 	int nChunks;
+@@ -3278,10 +3349,8 @@ static int yaffs_CheckFileSanity(yaffs_O
+ 	int theChunk;
+ 	int chunkDeleted;
+ 
+-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
+-		/* T(("Object not a file\n")); */
++	if (in->variantType != YAFFS_OBJECT_TYPE_FILE)
+ 		return YAFFS_FAIL;
+-	}
+ 
+ 	objId = in->objectId;
+ 	fSize = in->variant.fileVariant.fileSize;
+@@ -3294,7 +3363,7 @@ static int yaffs_CheckFileSanity(yaffs_O
+ 
+ 		if (tn) {
+ 
+-			theChunk = yaffs_GetChunkGroupBase(dev,tn,chunk);
++			theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk);
+ 
+ 			if (yaffs_CheckChunkBits
+ 			    (dev, theChunk / dev->nChunksPerBlock,
+@@ -3323,7 +3392,7 @@ static int yaffs_CheckFileSanity(yaffs_O
+ 
+ #endif
+ 
+-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
++static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
+ 				  int chunkInNAND, int inScan)
+ {
+ 	/* NB inScan is zero unless scanning.
+@@ -3358,11 +3427,10 @@ static int yaffs_PutChunkIntoFile(yaffs_
+ 					&in->variant.fileVariant,
+ 					chunkInInode,
+ 					NULL);
+-	if (!tn) {
++	if (!tn)
+ 		return YAFFS_FAIL;
+-	}
+ 
+-	existingChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
++	existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
+ 
+ 	if (inScan != 0) {
+ 		/* If we're scanning then we need to test for duplicates
+@@ -3374,7 +3442,7 @@ static int yaffs_PutChunkIntoFile(yaffs_
+ 		 * Update: For backward scanning we don't need to re-read tags so this is quite cheap.
+ 		 */
+ 
+-		if (existingChunk != 0) {
++		if (existingChunk > 0) {
+ 			/* NB Right now existing chunk will not be real chunkId if the device >= 32MB
+ 			 *    thus we have to do a FindChunkInFile to get the real chunk id.
+ 			 *
+@@ -3411,8 +3479,10 @@ static int yaffs_PutChunkIntoFile(yaffs_
+ 			 * not be loaded during a scan
+ 			 */
+ 
+-			newSerial = newTags.serialNumber;
+-			existingSerial = existingTags.serialNumber;
++			if (inScan > 0) {
++				newSerial = newTags.serialNumber;
++				existingSerial = existingTags.serialNumber;
++			}
+ 
+ 			if ((inScan > 0) &&
+ 			    (in->myDev->isYaffs2 ||
+@@ -3437,24 +3507,23 @@ static int yaffs_PutChunkIntoFile(yaffs_
+ 
+ 	}
+ 
+-	if (existingChunk == 0) {
++	if (existingChunk == 0)
+ 		in->nDataChunks++;
+-	}
+ 
+-	yaffs_PutLevel0Tnode(dev,tn,chunkInInode,chunkInNAND);
++	yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND);
+ 
+ 	return YAFFS_OK;
+ }
+ 
+-static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode,
+-					 __u8 * buffer)
++static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode,
++					__u8 *buffer)
+ {
+ 	int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL);
+ 
+-	if (chunkInNAND >= 0) {
++	if (chunkInNAND >= 0)
+ 		return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND,
+-						       buffer,NULL);
+-	} else {
++						buffer, NULL);
++	else {
+ 		T(YAFFS_TRACE_NANDACCESS,
+ 		  (TSTR("Chunk %d not found zero instead" TENDSTR),
+ 		   chunkInNAND));
+@@ -3465,7 +3534,7 @@ static int yaffs_ReadChunkDataFromObject
+ 
+ }
+ 
+-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn)
++void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn)
+ {
+ 	int block;
+ 	int page;
+@@ -3475,16 +3544,15 @@ void yaffs_DeleteChunk(yaffs_Device * de
+ 	if (chunkId <= 0)
+ 		return;
+ 
+-
+ 	dev->nDeletions++;
+ 	block = chunkId / dev->nChunksPerBlock;
+ 	page = chunkId % dev->nChunksPerBlock;
+ 
+ 
+-	if(!yaffs_CheckChunkBit(dev,block,page))
++	if (!yaffs_CheckChunkBit(dev, block, page))
+ 		T(YAFFS_TRACE_VERIFY,
+-		 	(TSTR("Deleting invalid chunk %d"TENDSTR),
+-		 	 chunkId));
++			(TSTR("Deleting invalid chunk %d"TENDSTR),
++			 chunkId));
+ 
+ 	bi = yaffs_GetBlockInfo(dev, block);
+ 
+@@ -3524,14 +3592,12 @@ void yaffs_DeleteChunk(yaffs_Device * de
+ 			yaffs_BlockBecameDirty(dev, block);
+ 		}
+ 
+-	} else {
+-		/* T(("Bad news deleting chunk %d\n",chunkId)); */
+ 	}
+ 
+ }
+ 
+-static int yaffs_WriteChunkDataToObject(yaffs_Object * in, int chunkInInode,
+-					const __u8 * buffer, int nBytes,
++static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode,
++					const __u8 *buffer, int nBytes,
+ 					int useReserve)
+ {
+ 	/* Find old chunk Need to do this to get serial number
+@@ -3561,6 +3627,12 @@ static int yaffs_WriteChunkDataToObject(
+ 	    (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1;
+ 	newTags.byteCount = nBytes;
+ 
++	if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) {
++		T(YAFFS_TRACE_ERROR,
++		(TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes));
++		YBUG();
++	}
++
+ 	newChunkId =
+ 	    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
+ 					      useReserve);
+@@ -3568,11 +3640,9 @@ static int yaffs_WriteChunkDataToObject(
+ 	if (newChunkId >= 0) {
+ 		yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0);
+ 
+-		if (prevChunkId >= 0) {
++		if (prevChunkId >= 0)
+ 			yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__);
+ 
+-		}
+-
+ 		yaffs_CheckFileSanity(in);
+ 	}
+ 	return newChunkId;
+@@ -3582,7 +3652,7 @@ static int yaffs_WriteChunkDataToObject(
+ /* UpdateObjectHeader updates the header on NAND for an object.
+  * If name is not NULL, then that new name is used.
+  */
+-int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force,
++int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force,
+ 			     int isShrink, int shadows)
+ {
+ 
+@@ -3603,9 +3673,12 @@ int yaffs_UpdateObjectHeader(yaffs_Objec
+ 
+ 	yaffs_ObjectHeader *oh = NULL;
+ 
+-	yaffs_strcpy(oldName,"silly old name");
++	yaffs_strcpy(oldName, _Y("silly old name"));
+ 
+-	if (!in->fake || force) {
++
++	if (!in->fake ||
++		in == dev->rootDir || /* The rootDir should also be saved */
++		force) {
+ 
+ 		yaffs_CheckGarbageCollection(dev);
+ 		yaffs_CheckObjectDetailsLoaded(in);
+@@ -3613,13 +3686,13 @@ int yaffs_UpdateObjectHeader(yaffs_Objec
+ 		buffer = yaffs_GetTempBuffer(in->myDev, __LINE__);
+ 		oh = (yaffs_ObjectHeader *) buffer;
+ 
+-		prevChunkId = in->chunkId;
++		prevChunkId = in->hdrChunk;
+ 
+-		if (prevChunkId >= 0) {
++		if (prevChunkId > 0) {
+ 			result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId,
+ 							buffer, &oldTags);
+ 
+-			yaffs_VerifyObjectHeader(in,oh,&oldTags,0);
++			yaffs_VerifyObjectHeader(in, oh, &oldTags, 0);
+ 
+ 			memcpy(oldName, oh->name, sizeof(oh->name));
+ 		}
+@@ -3628,7 +3701,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec
+ 
+ 		oh->type = in->variantType;
+ 		oh->yst_mode = in->yst_mode;
+-		oh->shadowsObject = shadows;
++		oh->shadowsObject = oh->inbandShadowsObject = shadows;
+ 
+ #ifdef CONFIG_YAFFS_WINCE
+ 		oh->win_atime[0] = in->win_atime[0];
+@@ -3645,20 +3718,18 @@ int yaffs_UpdateObjectHeader(yaffs_Objec
+ 		oh->yst_ctime = in->yst_ctime;
+ 		oh->yst_rdev = in->yst_rdev;
+ #endif
+-		if (in->parent) {
++		if (in->parent)
+ 			oh->parentObjectId = in->parent->objectId;
+-		} else {
++		else
+ 			oh->parentObjectId = 0;
+-		}
+ 
+ 		if (name && *name) {
+ 			memset(oh->name, 0, sizeof(oh->name));
+ 			yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH);
+-		} else if (prevChunkId>=0) {
++		} else if (prevChunkId >= 0)
+ 			memcpy(oh->name, oldName, sizeof(oh->name));
+-		} else {
++		else
+ 			memset(oh->name, 0, sizeof(oh->name));
+-		}
+ 
+ 		oh->isShrink = isShrink;
+ 
+@@ -3708,7 +3779,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec
+ 		newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0;
+ 		newTags.extraObjectType = in->variantType;
+ 
+-		yaffs_VerifyObjectHeader(in,oh,&newTags,1);
++		yaffs_VerifyObjectHeader(in, oh, &newTags, 1);
+ 
+ 		/* Create new chunk in NAND */
+ 		newChunkId =
+@@ -3717,20 +3788,20 @@ int yaffs_UpdateObjectHeader(yaffs_Objec
+ 
+ 		if (newChunkId >= 0) {
+ 
+-			in->chunkId = newChunkId;
++			in->hdrChunk = newChunkId;
+ 
+ 			if (prevChunkId >= 0) {
+ 				yaffs_DeleteChunk(dev, prevChunkId, 1,
+ 						  __LINE__);
+ 			}
+ 
+-			if(!yaffs_ObjectHasCachedWriteData(in))
++			if (!yaffs_ObjectHasCachedWriteData(in))
+ 				in->dirty = 0;
+ 
+ 			/* If this was a shrink, then mark the block that the chunk lives on */
+ 			if (isShrink) {
+ 				bi = yaffs_GetBlockInfo(in->myDev,
+-							newChunkId /in->myDev->	nChunksPerBlock);
++					newChunkId / in->myDev->nChunksPerBlock);
+ 				bi->hasShrinkHeader = 1;
+ 			}
+ 
+@@ -3766,7 +3837,7 @@ static int yaffs_ObjectHasCachedWriteDat
+ 	yaffs_ChunkCache *cache;
+ 	int nCaches = obj->myDev->nShortOpCaches;
+ 
+-	for(i = 0; i < nCaches; i++){
++	for (i = 0; i < nCaches; i++) {
+ 		cache = &dev->srCache[i];
+ 		if (cache->object == obj &&
+ 		    cache->dirty)
+@@ -3777,7 +3848,7 @@ static int yaffs_ObjectHasCachedWriteDat
+ }
+ 
+ 
+-static void yaffs_FlushFilesChunkCache(yaffs_Object * obj)
++static void yaffs_FlushFilesChunkCache(yaffs_Object *obj)
+ {
+ 	yaffs_Device *dev = obj->myDev;
+ 	int lowest = -99;	/* Stop compiler whining. */
+@@ -3844,16 +3915,16 @@ void yaffs_FlushEntireDeviceCache(yaffs_
+ 	 */
+ 	do {
+ 		obj = NULL;
+-		for( i = 0; i < nCaches && !obj; i++) {
++		for (i = 0; i < nCaches && !obj; i++) {
+ 			if (dev->srCache[i].object &&
+ 			    dev->srCache[i].dirty)
+ 				obj = dev->srCache[i].object;
+ 
+ 		}
+-		if(obj)
++		if (obj)
+ 			yaffs_FlushFilesChunkCache(obj);
+ 
+-	} while(obj);
++	} while (obj);
+ 
+ }
+ 
+@@ -3863,41 +3934,21 @@ void yaffs_FlushEntireDeviceCache(yaffs_
+  * Then look for the least recently used non-dirty one.
+  * Then look for the least recently used dirty one...., flush and look again.
+  */
+-static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev)
++static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev)
+ {
+ 	int i;
+-	int usage;
+-	int theOne;
+ 
+ 	if (dev->nShortOpCaches > 0) {
+ 		for (i = 0; i < dev->nShortOpCaches; i++) {
+ 			if (!dev->srCache[i].object)
+ 				return &dev->srCache[i];
+ 		}
++	}
+ 
+-		return NULL;
++	return NULL;
++}
+ 
+-		theOne = -1;
+-		usage = 0;	/* just to stop the compiler grizzling */
+-
+-		for (i = 0; i < dev->nShortOpCaches; i++) {
+-			if (!dev->srCache[i].dirty &&
+-			    ((dev->srCache[i].lastUse < usage && theOne >= 0) ||
+-			     theOne < 0)) {
+-				usage = dev->srCache[i].lastUse;
+-				theOne = i;
+-			}
+-		}
+-
+-
+-		return theOne >= 0 ? &dev->srCache[theOne] : NULL;
+-	} else {
+-		return NULL;
+-	}
+-
+-}
+-
+-static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev)
++static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev)
+ {
+ 	yaffs_ChunkCache *cache;
+ 	yaffs_Object *theObj;
+@@ -3927,8 +3978,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk
+ 			for (i = 0; i < dev->nShortOpCaches; i++) {
+ 				if (dev->srCache[i].object &&
+ 				    !dev->srCache[i].locked &&
+-				    (dev->srCache[i].lastUse < usage || !cache))
+-				{
++				    (dev->srCache[i].lastUse < usage || !cache)) {
+ 					usage = dev->srCache[i].lastUse;
+ 					theObj = dev->srCache[i].object;
+ 					cache = &dev->srCache[i];
+@@ -3950,7 +4000,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk
+ }
+ 
+ /* Find a cached chunk */
+-static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object * obj,
++static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj,
+ 					      int chunkId)
+ {
+ 	yaffs_Device *dev = obj->myDev;
+@@ -3969,7 +4019,7 @@ static yaffs_ChunkCache *yaffs_FindChunk
+ }
+ 
+ /* Mark the chunk for the least recently used algorithym */
+-static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache,
++static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache,
+ 				int isAWrite)
+ {
+ 
+@@ -3977,9 +4027,9 @@ static void yaffs_UseChunkCache(yaffs_De
+ 		if (dev->srLastUse < 0 || dev->srLastUse > 100000000) {
+ 			/* Reset the cache usages */
+ 			int i;
+-			for (i = 1; i < dev->nShortOpCaches; i++) {
++			for (i = 1; i < dev->nShortOpCaches; i++)
+ 				dev->srCache[i].lastUse = 0;
+-			}
++
+ 			dev->srLastUse = 0;
+ 		}
+ 
+@@ -3987,9 +4037,8 @@ static void yaffs_UseChunkCache(yaffs_De
+ 
+ 		cache->lastUse = dev->srLastUse;
+ 
+-		if (isAWrite) {
++		if (isAWrite)
+ 			cache->dirty = 1;
+-		}
+ 	}
+ }
+ 
+@@ -3997,21 +4046,20 @@ static void yaffs_UseChunkCache(yaffs_De
+  * Do this when a whole page gets written,
+  * ie the short cache for this page is no longer valid.
+  */
+-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId)
++static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId)
+ {
+ 	if (object->myDev->nShortOpCaches > 0) {
+ 		yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId);
+ 
+-		if (cache) {
++		if (cache)
+ 			cache->object = NULL;
+-		}
+ 	}
+ }
+ 
+ /* Invalidate all the cache pages associated with this object
+  * Do this whenever ther file is deleted or resized.
+  */
+-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in)
++static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in)
+ {
+ 	int i;
+ 	yaffs_Device *dev = in->myDev;
+@@ -4019,9 +4067,8 @@ static void yaffs_InvalidateWholeChunkCa
+ 	if (dev->nShortOpCaches > 0) {
+ 		/* Invalidate it. */
+ 		for (i = 0; i < dev->nShortOpCaches; i++) {
+-			if (dev->srCache[i].object == in) {
++			if (dev->srCache[i].object == in)
+ 				dev->srCache[i].object = NULL;
+-			}
+ 		}
+ 	}
+ }
+@@ -4029,18 +4076,18 @@ static void yaffs_InvalidateWholeChunkCa
+ /*--------------------- Checkpointing --------------------*/
+ 
+ 
+-static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head)
++static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head)
+ {
+ 	yaffs_CheckpointValidity cp;
+ 
+-	memset(&cp,0,sizeof(cp));
++	memset(&cp, 0, sizeof(cp));
+ 
+ 	cp.structType = sizeof(cp);
+ 	cp.magic = YAFFS_MAGIC;
+ 	cp.version = YAFFS_CHECKPOINT_VERSION;
+ 	cp.head = (head) ? 1 : 0;
+ 
+-	return (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp))?
++	return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ?
+ 		1 : 0;
+ }
+ 
+@@ -4049,9 +4096,9 @@ static int yaffs_ReadCheckpointValidityM
+ 	yaffs_CheckpointValidity cp;
+ 	int ok;
+ 
+-	ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
++	ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
+ 
+-	if(ok)
++	if (ok)
+ 		ok = (cp.structType == sizeof(cp)) &&
+ 		     (cp.magic == YAFFS_MAGIC) &&
+ 		     (cp.version == YAFFS_CHECKPOINT_VERSION) &&
+@@ -4100,21 +4147,21 @@ static int yaffs_WriteCheckpointDevice(y
+ 	int ok;
+ 
+ 	/* Write device runtime values*/
+-	yaffs_DeviceToCheckpointDevice(&cp,dev);
++	yaffs_DeviceToCheckpointDevice(&cp, dev);
+ 	cp.structType = sizeof(cp);
+ 
+-	ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
++	ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
+ 
+ 	/* Write block info */
+-	if(ok) {
++	if (ok) {
+ 		nBytes = nBlocks * sizeof(yaffs_BlockInfo);
+-		ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes);
++		ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes);
+ 	}
+ 
+ 	/* Write chunk bits */
+-	if(ok) {
++	if (ok) {
+ 		nBytes = nBlocks * dev->chunkBitmapStride;
+-		ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes);
++		ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes);
+ 	}
+ 	return	 ok ? 1 : 0;
+ 
+@@ -4128,25 +4175,25 @@ static int yaffs_ReadCheckpointDevice(ya
+ 
+ 	int ok;
+ 
+-	ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
+-	if(!ok)
++	ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
++	if (!ok)
+ 		return 0;
+ 
+-	if(cp.structType != sizeof(cp))
++	if (cp.structType != sizeof(cp))
+ 		return 0;
+ 
+ 
+-	yaffs_CheckpointDeviceToDevice(dev,&cp);
++	yaffs_CheckpointDeviceToDevice(dev, &cp);
+ 
+ 	nBytes = nBlocks * sizeof(yaffs_BlockInfo);
+ 
+-	ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes);
++	ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes);
+ 
+-	if(!ok)
++	if (!ok)
+ 		return 0;
+ 	nBytes = nBlocks * dev->chunkBitmapStride;
+ 
+-	ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes);
++	ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes);
+ 
+ 	return ok ? 1 : 0;
+ }
+@@ -4157,7 +4204,7 @@ static void yaffs_ObjectToCheckpointObje
+ 
+ 	cp->objectId = obj->objectId;
+ 	cp->parentId = (obj->parent) ? obj->parent->objectId : 0;
+-	cp->chunkId = obj->chunkId;
++	cp->hdrChunk = obj->hdrChunk;
+ 	cp->variantType = obj->variantType;
+ 	cp->deleted = obj->deleted;
+ 	cp->softDeleted = obj->softDeleted;
+@@ -4168,20 +4215,28 @@ static void yaffs_ObjectToCheckpointObje
+ 	cp->serial = obj->serial;
+ 	cp->nDataChunks = obj->nDataChunks;
+ 
+-	if(obj->variantType == YAFFS_OBJECT_TYPE_FILE)
++	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+ 		cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize;
+-	else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
++	else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
+ 		cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId;
+ }
+ 
+-static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointObject *cp)
++static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp)
+ {
+ 
+ 	yaffs_Object *parent;
+ 
++	if (obj->variantType != cp->variantType) {
++		T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d "
++			TCONT("chunk %d does not match existing object type %d")
++			TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk,
++			obj->variantType));
++		return 0;
++	}
++
+ 	obj->objectId = cp->objectId;
+ 
+-	if(cp->parentId)
++	if (cp->parentId)
+ 		parent = yaffs_FindOrCreateObjectByNumber(
+ 					obj->myDev,
+ 					cp->parentId,
+@@ -4189,10 +4244,19 @@ static void yaffs_CheckpointObjectToObje
+ 	else
+ 		parent = NULL;
+ 
+-	if(parent)
++	if (parent) {
++		if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
++			T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d"
++				TCONT(" chunk %d Parent type, %d, not directory")
++				TENDSTR),
++				cp->objectId, cp->parentId, cp->variantType,
++				cp->hdrChunk, parent->variantType));
++			return 0;
++		}
+ 		yaffs_AddObjectToDirectory(parent, obj);
++	}
+ 
+-	obj->chunkId = cp->chunkId;
++	obj->hdrChunk = cp->hdrChunk;
+ 	obj->variantType = cp->variantType;
+ 	obj->deleted = cp->deleted;
+ 	obj->softDeleted = cp->softDeleted;
+@@ -4203,29 +4267,34 @@ static void yaffs_CheckpointObjectToObje
+ 	obj->serial = cp->serial;
+ 	obj->nDataChunks = cp->nDataChunks;
+ 
+-	if(obj->variantType == YAFFS_OBJECT_TYPE_FILE)
++	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+ 		obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId;
+-	else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
++	else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
+ 		obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId;
+ 
+-	if(obj->objectId >= YAFFS_NOBJECT_BUCKETS)
++	if (obj->hdrChunk > 0)
+ 		obj->lazyLoaded = 1;
++	return 1;
+ }
+ 
+ 
+ 
+-static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn,
+-				  	__u32 level, int chunkOffset)
++static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn,
++					__u32 level, int chunkOffset)
+ {
+ 	int i;
+ 	yaffs_Device *dev = in->myDev;
+ 	int ok = 1;
+-	int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
++	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
++
++	if (tnodeSize < sizeof(yaffs_Tnode))
++		tnodeSize = sizeof(yaffs_Tnode);
++
+ 
+ 	if (tn) {
+ 		if (level > 0) {
+ 
+-			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){
++			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
+ 				if (tn->internal[i]) {
+ 					ok = yaffs_CheckpointTnodeWorker(in,
+ 							tn->internal[i],
+@@ -4235,10 +4304,9 @@ static int yaffs_CheckpointTnodeWorker(y
+ 			}
+ 		} else if (level == 0) {
+ 			__u32 baseOffset = chunkOffset <<  YAFFS_TNODES_LEVEL0_BITS;
+-			/* printf("write tnode at %d\n",baseOffset); */
+-			ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset));
+-			if(ok)
+-				ok = (yaffs_CheckpointWrite(dev,tn,nTnodeBytes) == nTnodeBytes);
++			ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset));
++			if (ok)
++				ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize);
+ 		}
+ 	}
+ 
+@@ -4251,13 +4319,13 @@ static int yaffs_WriteCheckpointTnodes(y
+ 	__u32 endMarker = ~0;
+ 	int ok = 1;
+ 
+-	if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){
++	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
+ 		ok = yaffs_CheckpointTnodeWorker(obj,
+ 					    obj->variant.fileVariant.top,
+ 					    obj->variant.fileVariant.topLevel,
+ 					    0);
+-		if(ok)
+-			ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) ==
++		if (ok)
++			ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) ==
+ 				sizeof(endMarker));
+ 	}
+ 
+@@ -4272,38 +4340,38 @@ static int yaffs_ReadCheckpointTnodes(ya
+ 	yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant;
+ 	yaffs_Tnode *tn;
+ 	int nread = 0;
++	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
+ 
+-	ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk));
++	if (tnodeSize < sizeof(yaffs_Tnode))
++		tnodeSize = sizeof(yaffs_Tnode);
+ 
+-	while(ok && (~baseChunk)){
++	ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
++
++	while (ok && (~baseChunk)) {
+ 		nread++;
+ 		/* Read level 0 tnode */
+ 
+ 
+-		/* printf("read  tnode at %d\n",baseChunk); */
+ 		tn = yaffs_GetTnodeRaw(dev);
+-		if(tn)
+-			ok = (yaffs_CheckpointRead(dev,tn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8) ==
+-			      (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
++		if (tn)
++			ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize);
+ 		else
+ 			ok = 0;
+ 
+-		if(tn && ok){
++		if (tn && ok)
+ 			ok = yaffs_AddOrFindLevel0Tnode(dev,
+-					       		fileStructPtr,
+-					       		baseChunk,
+-					       		tn) ? 1 : 0;
++							fileStructPtr,
++							baseChunk,
++							tn) ? 1 : 0;
+ 
+-		}
+-
+-		if(ok)
+-			ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk));
++		if (ok)
++			ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
+ 
+ 	}
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(
++	T(YAFFS_TRACE_CHECKPOINT, (
+ 		TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR),
+-		nread,baseChunk,ok));
++		nread, baseChunk, ok));
+ 
+ 	return ok ? 1 : 0;
+ }
+@@ -4315,41 +4383,40 @@ static int yaffs_WriteCheckpointObjects(
+ 	yaffs_CheckpointObject cp;
+ 	int i;
+ 	int ok = 1;
+-	struct list_head *lh;
++	struct ylist_head *lh;
+ 
+ 
+ 	/* Iterate through the objects in each hash entry,
+ 	 * dumping them to the checkpointing stream.
+ 	 */
+ 
+-	 for(i = 0; ok &&  i <  YAFFS_NOBJECT_BUCKETS; i++){
+-	 	list_for_each(lh, &dev->objectBucket[i].list) {
++	for (i = 0; ok &&  i <  YAFFS_NOBJECT_BUCKETS; i++) {
++		ylist_for_each(lh, &dev->objectBucket[i].list) {
+ 			if (lh) {
+-				obj = list_entry(lh, yaffs_Object, hashLink);
++				obj = ylist_entry(lh, yaffs_Object, hashLink);
+ 				if (!obj->deferedFree) {
+-					yaffs_ObjectToCheckpointObject(&cp,obj);
++					yaffs_ObjectToCheckpointObject(&cp, obj);
+ 					cp.structType = sizeof(cp);
+ 
+-					T(YAFFS_TRACE_CHECKPOINT,(
++					T(YAFFS_TRACE_CHECKPOINT, (
+ 						TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR),
+-						cp.objectId,cp.parentId,cp.variantType,cp.chunkId,(unsigned) obj));
++						cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj));
+ 
+-					ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
++					ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
+ 
+-					if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){
++					if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+ 						ok = yaffs_WriteCheckpointTnodes(obj);
+-					}
+ 				}
+ 			}
+ 		}
+-	 }
++	}
+ 
+-	 /* Dump end of list */
+-	memset(&cp,0xFF,sizeof(yaffs_CheckpointObject));
++	/* Dump end of list */
++	memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject));
+ 	cp.structType = sizeof(cp);
+ 
+-	if(ok)
+-		ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
++	if (ok)
++		ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
+ 
+ 	return ok ? 1 : 0;
+ }
+@@ -4362,38 +4429,39 @@ static int yaffs_ReadCheckpointObjects(y
+ 	int done = 0;
+ 	yaffs_Object *hardList = NULL;
+ 
+-	while(ok && !done) {
+-		ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp));
+-		if(cp.structType != sizeof(cp)) {
+-			T(YAFFS_TRACE_CHECKPOINT,(TSTR("struct size %d instead of %d ok %d"TENDSTR),
+-				cp.structType,sizeof(cp),ok));
++	while (ok && !done) {
++		ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
++		if (cp.structType != sizeof(cp)) {
++			T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR),
++				cp.structType, sizeof(cp), ok));
+ 			ok = 0;
+ 		}
+ 
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
+-			cp.objectId,cp.parentId,cp.variantType,cp.chunkId));
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
++			cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk));
+ 
+-		if(ok && cp.objectId == ~0)
++		if (ok && cp.objectId == ~0)
+ 			done = 1;
+-		else if(ok){
+-			obj = yaffs_FindOrCreateObjectByNumber(dev,cp.objectId, cp.variantType);
+-			if(obj) {
+-				yaffs_CheckpointObjectToObject(obj,&cp);
+-				if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
++		else if (ok) {
++			obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType);
++			if (obj) {
++				ok = yaffs_CheckpointObjectToObject(obj, &cp);
++				if (!ok)
++					break;
++				if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
+ 					ok = yaffs_ReadCheckpointTnodes(obj);
+-				} else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
++				} else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
+ 					obj->hardLinks.next =
+-						    (struct list_head *)
+-						    hardList;
++						(struct ylist_head *) hardList;
+ 					hardList = obj;
+ 				}
+-
+-			}
++			} else
++				ok = 0;
+ 		}
+ 	}
+ 
+-	if(ok)
+-		yaffs_HardlinkFixup(dev,hardList);
++	if (ok)
++		yaffs_HardlinkFixup(dev, hardList);
+ 
+ 	return ok ? 1 : 0;
+ }
+@@ -4403,11 +4471,11 @@ static int yaffs_WriteCheckpointSum(yaff
+ 	__u32 checkpointSum;
+ 	int ok;
+ 
+-	yaffs_GetCheckpointSum(dev,&checkpointSum);
++	yaffs_GetCheckpointSum(dev, &checkpointSum);
+ 
+-	ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum));
++	ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum));
+ 
+-	if(!ok)
++	if (!ok)
+ 		return 0;
+ 
+ 	return 1;
+@@ -4419,14 +4487,14 @@ static int yaffs_ReadCheckpointSum(yaffs
+ 	__u32 checkpointSum1;
+ 	int ok;
+ 
+-	yaffs_GetCheckpointSum(dev,&checkpointSum0);
++	yaffs_GetCheckpointSum(dev, &checkpointSum0);
+ 
+-	ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1));
++	ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1));
+ 
+-	if(!ok)
++	if (!ok)
+ 		return 0;
+ 
+-	if(checkpointSum0 != checkpointSum1)
++	if (checkpointSum0 != checkpointSum1)
+ 		return 0;
+ 
+ 	return 1;
+@@ -4435,46 +4503,43 @@ static int yaffs_ReadCheckpointSum(yaffs
+ 
+ static int yaffs_WriteCheckpointData(yaffs_Device *dev)
+ {
+-
+ 	int ok = 1;
+ 
+-	if(dev->skipCheckpointWrite || !dev->isYaffs2){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR)));
++	if (dev->skipCheckpointWrite || !dev->isYaffs2) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR)));
+ 		ok = 0;
+ 	}
+ 
+-	if(ok)
+-		ok = yaffs_CheckpointOpen(dev,1);
++	if (ok)
++		ok = yaffs_CheckpointOpen(dev, 1);
+ 
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR)));
+-		ok = yaffs_WriteCheckpointValidityMarker(dev,1);
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
++		ok = yaffs_WriteCheckpointValidityMarker(dev, 1);
+ 	}
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint device" TENDSTR)));
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR)));
+ 		ok = yaffs_WriteCheckpointDevice(dev);
+ 	}
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint objects" TENDSTR)));
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR)));
+ 		ok = yaffs_WriteCheckpointObjects(dev);
+ 	}
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR)));
+-		ok = yaffs_WriteCheckpointValidityMarker(dev,0);
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
++		ok = yaffs_WriteCheckpointValidityMarker(dev, 0);
+ 	}
+ 
+-	if(ok){
++	if (ok)
+ 		ok = yaffs_WriteCheckpointSum(dev);
+-	}
+-
+ 
+-	if(!yaffs_CheckpointClose(dev))
+-		 ok = 0;
++	if (!yaffs_CheckpointClose(dev))
++		ok = 0;
+ 
+-	if(ok)
+-	    	dev->isCheckpointed = 1;
+-	 else
+-	 	dev->isCheckpointed = 0;
++	if (ok)
++		dev->isCheckpointed = 1;
++	else
++		dev->isCheckpointed = 0;
+ 
+ 	return dev->isCheckpointed;
+ }
+@@ -4483,43 +4548,43 @@ static int yaffs_ReadCheckpointData(yaff
+ {
+ 	int ok = 1;
+ 
+-	if(dev->skipCheckpointRead || !dev->isYaffs2){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint read" TENDSTR)));
++	if (dev->skipCheckpointRead || !dev->isYaffs2) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR)));
+ 		ok = 0;
+ 	}
+ 
+-	if(ok)
+-		ok = yaffs_CheckpointOpen(dev,0); /* open for read */
++	if (ok)
++		ok = yaffs_CheckpointOpen(dev, 0); /* open for read */
+ 
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR)));
+-		ok = yaffs_ReadCheckpointValidityMarker(dev,1);
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
++		ok = yaffs_ReadCheckpointValidityMarker(dev, 1);
+ 	}
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint device" TENDSTR)));
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR)));
+ 		ok = yaffs_ReadCheckpointDevice(dev);
+ 	}
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR)));
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR)));
+ 		ok = yaffs_ReadCheckpointObjects(dev);
+ 	}
+-	if(ok){
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR)));
+-		ok = yaffs_ReadCheckpointValidityMarker(dev,0);
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
++		ok = yaffs_ReadCheckpointValidityMarker(dev, 0);
+ 	}
+ 
+-	if(ok){
++	if (ok) {
+ 		ok = yaffs_ReadCheckpointSum(dev);
+-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok));
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok));
+ 	}
+ 
+-	if(!yaffs_CheckpointClose(dev))
++	if (!yaffs_CheckpointClose(dev))
+ 		ok = 0;
+ 
+-	if(ok)
+-	    	dev->isCheckpointed = 1;
+-	 else
+-	 	dev->isCheckpointed = 0;
++	if (ok)
++		dev->isCheckpointed = 1;
++	else
++		dev->isCheckpointed = 0;
+ 
+ 	return ok ? 1 : 0;
+ 
+@@ -4527,11 +4592,11 @@ static int yaffs_ReadCheckpointData(yaff
+ 
+ static void yaffs_InvalidateCheckpoint(yaffs_Device *dev)
+ {
+-	if(dev->isCheckpointed ||
+-	   dev->blocksInCheckpoint > 0){
++	if (dev->isCheckpointed ||
++			dev->blocksInCheckpoint > 0) {
+ 		dev->isCheckpointed = 0;
+ 		yaffs_CheckpointInvalidateStream(dev);
+-		if(dev->superBlock && dev->markSuperBlockDirty)
++		if (dev->superBlock && dev->markSuperBlockDirty)
+ 			dev->markSuperBlockDirty(dev->superBlock);
+ 	}
+ }
+@@ -4540,18 +4605,18 @@ static void yaffs_InvalidateCheckpoint(y
+ int yaffs_CheckpointSave(yaffs_Device *dev)
+ {
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("save entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
+ 
+ 	yaffs_VerifyObjects(dev);
+ 	yaffs_VerifyBlocks(dev);
+ 	yaffs_VerifyFreeChunks(dev);
+ 
+-	if(!dev->isCheckpointed) {
++	if (!dev->isCheckpointed) {
+ 		yaffs_InvalidateCheckpoint(dev);
+ 		yaffs_WriteCheckpointData(dev);
+ 	}
+ 
+-	T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
++	T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
+ 
+ 	return dev->isCheckpointed;
+ }
+@@ -4559,17 +4624,17 @@ int yaffs_CheckpointSave(yaffs_Device *d
+ int yaffs_CheckpointRestore(yaffs_Device *dev)
+ {
+ 	int retval;
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
+ 
+ 	retval = yaffs_ReadCheckpointData(dev);
+ 
+-	if(dev->isCheckpointed){
++	if (dev->isCheckpointed) {
+ 		yaffs_VerifyObjects(dev);
+ 		yaffs_VerifyBlocks(dev);
+ 		yaffs_VerifyFreeChunks(dev);
+ 	}
+ 
+-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
+ 
+ 	return retval;
+ }
+@@ -4584,12 +4649,12 @@ int yaffs_CheckpointRestore(yaffs_Device
+  * Curve-balls: the first chunk might also be the last chunk.
+  */
+ 
+-int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset,
+-			   int nBytes)
++int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset,
++			int nBytes)
+ {
+ 
+ 	int chunk;
+-	int start;
++	__u32 start;
+ 	int nToCopy;
+ 	int n = nBytes;
+ 	int nDone = 0;
+@@ -4600,27 +4665,26 @@ int yaffs_ReadDataFromFile(yaffs_Object
+ 	dev = in->myDev;
+ 
+ 	while (n > 0) {
+-		//chunk = offset / dev->nDataBytesPerChunk + 1;
+-		//start = offset % dev->nDataBytesPerChunk;
+-		yaffs_AddrToChunk(dev,offset,&chunk,&start);
++		/* chunk = offset / dev->nDataBytesPerChunk + 1; */
++		/* start = offset % dev->nDataBytesPerChunk; */
++		yaffs_AddrToChunk(dev, offset, &chunk, &start);
+ 		chunk++;
+ 
+ 		/* OK now check for the curveball where the start and end are in
+ 		 * the same chunk.
+ 		 */
+-		if ((start + n) < dev->nDataBytesPerChunk) {
++		if ((start + n) < dev->nDataBytesPerChunk)
+ 			nToCopy = n;
+-		} else {
++		else
+ 			nToCopy = dev->nDataBytesPerChunk - start;
+-		}
+ 
+ 		cache = yaffs_FindChunkCache(in, chunk);
+ 
+ 		/* If the chunk is already in the cache or it is less than a whole chunk
+-		 * then use the cache (if there is caching)
++		 * or we're using inband tags then use the cache (if there is caching)
+ 		 * else bypass the cache.
+ 		 */
+-		if (cache || nToCopy != dev->nDataBytesPerChunk) {
++		if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) {
+ 			if (dev->nShortOpCaches > 0) {
+ 
+ 				/* If we can't find the data in the cache, then load it up. */
+@@ -4641,14 +4705,9 @@ int yaffs_ReadDataFromFile(yaffs_Object
+ 
+ 				cache->locked = 1;
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-				yfsd_UnlockYAFFS(TRUE);
+-#endif
++
+ 				memcpy(buffer, &cache->data[start], nToCopy);
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-				yfsd_LockYAFFS(TRUE);
+-#endif
+ 				cache->locked = 0;
+ 			} else {
+ 				/* Read into the local buffer then copy..*/
+@@ -4657,41 +4716,19 @@ int yaffs_ReadDataFromFile(yaffs_Object
+ 				    yaffs_GetTempBuffer(dev, __LINE__);
+ 				yaffs_ReadChunkDataFromObject(in, chunk,
+ 							      localBuffer);
+-#ifdef CONFIG_YAFFS_WINCE
+-				yfsd_UnlockYAFFS(TRUE);
+-#endif
++
+ 				memcpy(buffer, &localBuffer[start], nToCopy);
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-				yfsd_LockYAFFS(TRUE);
+-#endif
++
+ 				yaffs_ReleaseTempBuffer(dev, localBuffer,
+ 							__LINE__);
+ 			}
+ 
+ 		} else {
+-#ifdef CONFIG_YAFFS_WINCE
+-			__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
+-
+-			/* Under WinCE can't do direct transfer. Need to use a local buffer.
+-			 * This is because we otherwise screw up WinCE's memory mapper
+-			 */
+-			yaffs_ReadChunkDataFromObject(in, chunk, localBuffer);
+-
+-#ifdef CONFIG_YAFFS_WINCE
+-			yfsd_UnlockYAFFS(TRUE);
+-#endif
+-			memcpy(buffer, localBuffer, dev->nDataBytesPerChunk);
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-			yfsd_LockYAFFS(TRUE);
+-			yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__);
+-#endif
+-
+-#else
+ 			/* A full chunk. Read directly into the supplied buffer. */
+ 			yaffs_ReadChunkDataFromObject(in, chunk, buffer);
+-#endif
++
+ 		}
+ 
+ 		n -= nToCopy;
+@@ -4704,28 +4741,37 @@ int yaffs_ReadDataFromFile(yaffs_Object
+ 	return nDone;
+ }
+ 
+-int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset,
+-			  int nBytes, int writeThrough)
++int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset,
++			int nBytes, int writeThrough)
+ {
+ 
+ 	int chunk;
+-	int start;
++	__u32 start;
+ 	int nToCopy;
+ 	int n = nBytes;
+ 	int nDone = 0;
+ 	int nToWriteBack;
+ 	int startOfWrite = offset;
+ 	int chunkWritten = 0;
+-	int nBytesRead;
++	__u32 nBytesRead;
++	__u32 chunkStart;
+ 
+ 	yaffs_Device *dev;
+ 
+ 	dev = in->myDev;
+ 
+ 	while (n > 0 && chunkWritten >= 0) {
+-		//chunk = offset / dev->nDataBytesPerChunk + 1;
+-		//start = offset % dev->nDataBytesPerChunk;
+-		yaffs_AddrToChunk(dev,offset,&chunk,&start);
++		/* chunk = offset / dev->nDataBytesPerChunk + 1; */
++		/* start = offset % dev->nDataBytesPerChunk; */
++		yaffs_AddrToChunk(dev, offset, &chunk, &start);
++
++		if (chunk * dev->nDataBytesPerChunk + start != offset ||
++				start >= dev->nDataBytesPerChunk) {
++			T(YAFFS_TRACE_ERROR, (
++			   TSTR("AddrToChunk of offset %d gives chunk %d start %d"
++			   TENDSTR),
++			   (int)offset, chunk, start));
++		}
+ 		chunk++;
+ 
+ 		/* OK now check for the curveball where the start and end are in
+@@ -4740,25 +4786,32 @@ int yaffs_WriteDataToFile(yaffs_Object *
+ 			 * we need to write back as much as was there before.
+ 			 */
+ 
+-			nBytesRead =
+-			    in->variant.fileVariant.fileSize -
+-			    ((chunk - 1) * dev->nDataBytesPerChunk);
++			chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk);
++
++			if (chunkStart > in->variant.fileVariant.fileSize)
++				nBytesRead = 0; /* Past end of file */
++			else
++				nBytesRead = in->variant.fileVariant.fileSize - chunkStart;
+ 
+-			if (nBytesRead > dev->nDataBytesPerChunk) {
++			if (nBytesRead > dev->nDataBytesPerChunk)
+ 				nBytesRead = dev->nDataBytesPerChunk;
+-			}
+ 
+ 			nToWriteBack =
+ 			    (nBytesRead >
+ 			     (start + n)) ? nBytesRead : (start + n);
+ 
++			if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk)
++				YBUG();
++
+ 		} else {
+ 			nToCopy = dev->nDataBytesPerChunk - start;
+ 			nToWriteBack = dev->nDataBytesPerChunk;
+ 		}
+ 
+-		if (nToCopy != dev->nDataBytesPerChunk) {
+-			/* An incomplete start or end chunk (or maybe both start and end chunk) */
++		if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) {
++			/* An incomplete start or end chunk (or maybe both start and end chunk),
++			 * or we're using inband tags, so we want to use the cache buffers.
++			 */
+ 			if (dev->nShortOpCaches > 0) {
+ 				yaffs_ChunkCache *cache;
+ 				/* If we can't find the data in the cache, then load the cache */
+@@ -4775,10 +4828,9 @@ int yaffs_WriteDataToFile(yaffs_Object *
+ 					yaffs_ReadChunkDataFromObject(in, chunk,
+ 								      cache->
+ 								      data);
+-				}
+-				else if(cache &&
+-				        !cache->dirty &&
+-					!yaffs_CheckSpaceForAllocation(in->myDev)){
++				} else if (cache &&
++					!cache->dirty &&
++					!yaffs_CheckSpaceForAllocation(in->myDev)) {
+ 					/* Drop the cache if it was a read cache item and
+ 					 * no space check has been made for it.
+ 					 */
+@@ -4788,16 +4840,12 @@ int yaffs_WriteDataToFile(yaffs_Object *
+ 				if (cache) {
+ 					yaffs_UseChunkCache(dev, cache, 1);
+ 					cache->locked = 1;
+-#ifdef CONFIG_YAFFS_WINCE
+-					yfsd_UnlockYAFFS(TRUE);
+-#endif
++
+ 
+ 					memcpy(&cache->data[start], buffer,
+ 					       nToCopy);
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-					yfsd_LockYAFFS(TRUE);
+-#endif
++
+ 					cache->locked = 0;
+ 					cache->nBytes = nToWriteBack;
+ 
+@@ -4825,15 +4873,10 @@ int yaffs_WriteDataToFile(yaffs_Object *
+ 				yaffs_ReadChunkDataFromObject(in, chunk,
+ 							      localBuffer);
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-				yfsd_UnlockYAFFS(TRUE);
+-#endif
++
+ 
+ 				memcpy(&localBuffer[start], buffer, nToCopy);
+ 
+-#ifdef CONFIG_YAFFS_WINCE
+-				yfsd_LockYAFFS(TRUE);
+-#endif
+ 				chunkWritten =
+ 				    yaffs_WriteChunkDataToObject(in, chunk,
+ 								 localBuffer,
+@@ -4846,31 +4889,15 @@ int yaffs_WriteDataToFile(yaffs_Object *
+ 			}
+ 
+ 		} else {
+-
+-#ifdef CONFIG_YAFFS_WINCE
+-			/* Under WinCE can't do direct transfer. Need to use a local buffer.
+-			 * This is because we otherwise screw up WinCE's memory mapper
+-			 */
+-			__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
+-#ifdef CONFIG_YAFFS_WINCE
+-			yfsd_UnlockYAFFS(TRUE);
+-#endif
+-			memcpy(localBuffer, buffer, dev->nDataBytesPerChunk);
+-#ifdef CONFIG_YAFFS_WINCE
+-			yfsd_LockYAFFS(TRUE);
+-#endif
+-			chunkWritten =
+-			    yaffs_WriteChunkDataToObject(in, chunk, localBuffer,
+-							 dev->nDataBytesPerChunk,
+-							 0);
+-			yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__);
+-#else
+ 			/* A full chunk. Write directly from the supplied buffer. */
++
++
++
+ 			chunkWritten =
+ 			    yaffs_WriteChunkDataToObject(in, chunk, buffer,
+ 							 dev->nDataBytesPerChunk,
+ 							 0);
+-#endif
++
+ 			/* Since we've overwritten the cached data, we better invalidate it. */
+ 			yaffs_InvalidateChunkCache(in, chunk);
+ 		}
+@@ -4886,9 +4913,8 @@ int yaffs_WriteDataToFile(yaffs_Object *
+ 
+ 	/* Update file object */
+ 
+-	if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) {
++	if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize)
+ 		in->variant.fileVariant.fileSize = (startOfWrite + nDone);
+-	}
+ 
+ 	in->dirty = 1;
+ 
+@@ -4898,7 +4924,7 @@ int yaffs_WriteDataToFile(yaffs_Object *
+ 
+ /* ---------------------- File resizing stuff ------------------ */
+ 
+-static void yaffs_PruneResizedChunks(yaffs_Object * in, int newSize)
++static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize)
+ {
+ 
+ 	yaffs_Device *dev = in->myDev;
+@@ -4939,11 +4965,11 @@ static void yaffs_PruneResizedChunks(yaf
+ 
+ }
+ 
+-int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize)
++int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize)
+ {
+ 
+ 	int oldFileSize = in->variant.fileVariant.fileSize;
+-	int newSizeOfPartialChunk;
++	__u32 newSizeOfPartialChunk;
+ 	int newFullChunks;
+ 
+ 	yaffs_Device *dev = in->myDev;
+@@ -4955,13 +4981,11 @@ int yaffs_ResizeFile(yaffs_Object * in,
+ 
+ 	yaffs_CheckGarbageCollection(dev);
+ 
+-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
+-		return yaffs_GetFileSize(in);
+-	}
++	if (in->variantType != YAFFS_OBJECT_TYPE_FILE)
++		return YAFFS_FAIL;
+ 
+-	if (newSize == oldFileSize) {
+-		return oldFileSize;
+-	}
++	if (newSize == oldFileSize)
++		return YAFFS_OK;
+ 
+ 	if (newSize < oldFileSize) {
+ 
+@@ -4994,21 +5018,20 @@ int yaffs_ResizeFile(yaffs_Object * in,
+ 	}
+ 
+ 
+-
+ 	/* Write a new object header.
+ 	 * show we've shrunk the file, if need be
+ 	 * Do this only if the file is not in the deleted directories.
+ 	 */
+-	if (in->parent->objectId != YAFFS_OBJECTID_UNLINKED &&
+-	    in->parent->objectId != YAFFS_OBJECTID_DELETED) {
++	if (in->parent &&
++	    in->parent->objectId != YAFFS_OBJECTID_UNLINKED &&
++	    in->parent->objectId != YAFFS_OBJECTID_DELETED)
+ 		yaffs_UpdateObjectHeader(in, NULL, 0,
+ 					 (newSize < oldFileSize) ? 1 : 0, 0);
+-	}
+ 
+-	return newSize;
++	return YAFFS_OK;
+ }
+ 
+-loff_t yaffs_GetFileSize(yaffs_Object * obj)
++loff_t yaffs_GetFileSize(yaffs_Object *obj)
+ {
+ 	obj = yaffs_GetEquivalentObject(obj);
+ 
+@@ -5024,7 +5047,7 @@ loff_t yaffs_GetFileSize(yaffs_Object *
+ 
+ 
+ 
+-int yaffs_FlushFile(yaffs_Object * in, int updateTime)
++int yaffs_FlushFile(yaffs_Object *in, int updateTime)
+ {
+ 	int retVal;
+ 	if (in->dirty) {
+@@ -5039,9 +5062,8 @@ int yaffs_FlushFile(yaffs_Object * in, i
+ #endif
+ 		}
+ 
+-		retVal =
+-		    (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >=
+-		     0) ? YAFFS_OK : YAFFS_FAIL;
++		retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >=
++			0) ? YAFFS_OK : YAFFS_FAIL;
+ 	} else {
+ 		retVal = YAFFS_OK;
+ 	}
+@@ -5050,7 +5072,7 @@ int yaffs_FlushFile(yaffs_Object * in, i
+ 
+ }
+ 
+-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in)
++static int yaffs_DoGenericObjectDeletion(yaffs_Object *in)
+ {
+ 
+ 	/* First off, invalidate the file's data in the cache, without flushing. */
+@@ -5058,13 +5080,13 @@ static int yaffs_DoGenericObjectDeletion
+ 
+ 	if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) {
+ 		/* Move to the unlinked directory so we have a record that it was deleted. */
+-		yaffs_ChangeObjectName(in, in->myDev->deletedDir,"deleted", 0, 0);
++		yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0);
+ 
+ 	}
+ 
+ 	yaffs_RemoveObjectFromDirectory(in);
+-	yaffs_DeleteChunk(in->myDev, in->chunkId, 1, __LINE__);
+-	in->chunkId = -1;
++	yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__);
++	in->hdrChunk = 0;
+ 
+ 	yaffs_FreeObject(in);
+ 	return YAFFS_OK;
+@@ -5075,62 +5097,63 @@ static int yaffs_DoGenericObjectDeletion
+  * and the inode associated with the file.
+  * It does not delete the links associated with the file.
+  */
+-static int yaffs_UnlinkFile(yaffs_Object * in)
++static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in)
+ {
+ 
+ 	int retVal;
+ 	int immediateDeletion = 0;
+ 
+-	if (1) {
+ #ifdef __KERNEL__
+-		if (!in->myInode) {
+-			immediateDeletion = 1;
+-
+-		}
++	if (!in->myInode)
++		immediateDeletion = 1;
+ #else
+-		if (in->inUse <= 0) {
+-			immediateDeletion = 1;
+-
+-		}
++	if (in->inUse <= 0)
++		immediateDeletion = 1;
+ #endif
+-		if (immediateDeletion) {
+-			retVal =
+-			    yaffs_ChangeObjectName(in, in->myDev->deletedDir,
+-						   "deleted", 0, 0);
+-			T(YAFFS_TRACE_TRACING,
+-			  (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
+-			   in->objectId));
+-			in->deleted = 1;
+-			in->myDev->nDeletedFiles++;
+-			if (0 && in->myDev->isYaffs2) {
+-				yaffs_ResizeFile(in, 0);
+-			}
+-			yaffs_SoftDeleteFile(in);
+-		} else {
+-			retVal =
+-			    yaffs_ChangeObjectName(in, in->myDev->unlinkedDir,
+-						   "unlinked", 0, 0);
+-		}
+ 
++	if (immediateDeletion) {
++		retVal =
++		    yaffs_ChangeObjectName(in, in->myDev->deletedDir,
++					   _Y("deleted"), 0, 0);
++		T(YAFFS_TRACE_TRACING,
++		  (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
++		   in->objectId));
++		in->deleted = 1;
++		in->myDev->nDeletedFiles++;
++		if (1 || in->myDev->isYaffs2)
++			yaffs_ResizeFile(in, 0);
++		yaffs_SoftDeleteFile(in);
++	} else {
++		retVal =
++		    yaffs_ChangeObjectName(in, in->myDev->unlinkedDir,
++					   _Y("unlinked"), 0, 0);
+ 	}
++
++
+ 	return retVal;
+ }
+ 
+-int yaffs_DeleteFile(yaffs_Object * in)
++int yaffs_DeleteFile(yaffs_Object *in)
+ {
+ 	int retVal = YAFFS_OK;
++	int deleted = in->deleted;
++
++	yaffs_ResizeFile(in, 0);
+ 
+ 	if (in->nDataChunks > 0) {
+-		/* Use soft deletion if there is data in the file */
+-		if (!in->unlinked) {
+-			retVal = yaffs_UnlinkFile(in);
+-		}
++		/* Use soft deletion if there is data in the file.
++		 * That won't be the case if it has been resized to zero.
++		 */
++		if (!in->unlinked)
++			retVal = yaffs_UnlinkFileIfNeeded(in);
++
+ 		if (retVal == YAFFS_OK && in->unlinked && !in->deleted) {
+ 			in->deleted = 1;
++			deleted = 1;
+ 			in->myDev->nDeletedFiles++;
+ 			yaffs_SoftDeleteFile(in);
+ 		}
+-		return in->deleted ? YAFFS_OK : YAFFS_FAIL;
++		return deleted ? YAFFS_OK : YAFFS_FAIL;
+ 	} else {
+ 		/* The file has no data chunks so we toss it immediately */
+ 		yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top);
+@@ -5141,62 +5164,75 @@ int yaffs_DeleteFile(yaffs_Object * in)
+ 	}
+ }
+ 
+-static int yaffs_DeleteDirectory(yaffs_Object * in)
++static int yaffs_DeleteDirectory(yaffs_Object *in)
+ {
+ 	/* First check that the directory is empty. */
+-	if (list_empty(&in->variant.directoryVariant.children)) {
++	if (ylist_empty(&in->variant.directoryVariant.children))
+ 		return yaffs_DoGenericObjectDeletion(in);
+-	}
+ 
+ 	return YAFFS_FAIL;
+ 
+ }
+ 
+-static int yaffs_DeleteSymLink(yaffs_Object * in)
++static int yaffs_DeleteSymLink(yaffs_Object *in)
+ {
+ 	YFREE(in->variant.symLinkVariant.alias);
+ 
+ 	return yaffs_DoGenericObjectDeletion(in);
+ }
+ 
+-static int yaffs_DeleteHardLink(yaffs_Object * in)
++static int yaffs_DeleteHardLink(yaffs_Object *in)
+ {
+ 	/* remove this hardlink from the list assocaited with the equivalent
+ 	 * object
+ 	 */
+-	list_del(&in->hardLinks);
++	ylist_del_init(&in->hardLinks);
+ 	return yaffs_DoGenericObjectDeletion(in);
+ }
+ 
+-static void yaffs_DestroyObject(yaffs_Object * obj)
++int yaffs_DeleteObject(yaffs_Object *obj)
+ {
++int retVal = -1;
+ 	switch (obj->variantType) {
+ 	case YAFFS_OBJECT_TYPE_FILE:
+-		yaffs_DeleteFile(obj);
++		retVal = yaffs_DeleteFile(obj);
+ 		break;
+ 	case YAFFS_OBJECT_TYPE_DIRECTORY:
+-		yaffs_DeleteDirectory(obj);
++		return yaffs_DeleteDirectory(obj);
+ 		break;
+ 	case YAFFS_OBJECT_TYPE_SYMLINK:
+-		yaffs_DeleteSymLink(obj);
++		retVal = yaffs_DeleteSymLink(obj);
+ 		break;
+ 	case YAFFS_OBJECT_TYPE_HARDLINK:
+-		yaffs_DeleteHardLink(obj);
++		retVal = yaffs_DeleteHardLink(obj);
+ 		break;
+ 	case YAFFS_OBJECT_TYPE_SPECIAL:
+-		yaffs_DoGenericObjectDeletion(obj);
++		retVal = yaffs_DoGenericObjectDeletion(obj);
+ 		break;
+ 	case YAFFS_OBJECT_TYPE_UNKNOWN:
++		retVal = 0;
+ 		break;		/* should not happen. */
+ 	}
++
++	return retVal;
+ }
+ 
+-static int yaffs_UnlinkWorker(yaffs_Object * obj)
++static int yaffs_UnlinkWorker(yaffs_Object *obj)
+ {
+ 
++	int immediateDeletion = 0;
++
++#ifdef __KERNEL__
++	if (!obj->myInode)
++		immediateDeletion = 1;
++#else
++	if (obj->inUse <= 0)
++		immediateDeletion = 1;
++#endif
++
+ 	if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
+ 		return yaffs_DeleteHardLink(obj);
+-	} else if (!list_empty(&obj->hardLinks)) {
++	} else if (!ylist_empty(&obj->hardLinks)) {
+ 		/* Curve ball: We're unlinking an object that has a hardlink.
+ 		 *
+ 		 * This problem arises because we are not strictly following
+@@ -5215,24 +5251,24 @@ static int yaffs_UnlinkWorker(yaffs_Obje
+ 		int retVal;
+ 		YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
+ 
+-		hl = list_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
++		hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
+ 
+-		list_del_init(&hl->hardLinks);
+-		list_del_init(&hl->siblings);
++		ylist_del_init(&hl->hardLinks);
++		ylist_del_init(&hl->siblings);
+ 
+ 		yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
+ 
+ 		retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0);
+ 
+-		if (retVal == YAFFS_OK) {
++		if (retVal == YAFFS_OK)
+ 			retVal = yaffs_DoGenericObjectDeletion(hl);
+-		}
++
+ 		return retVal;
+ 
+-	} else {
++	} else if (immediateDeletion) {
+ 		switch (obj->variantType) {
+ 		case YAFFS_OBJECT_TYPE_FILE:
+-			return yaffs_UnlinkFile(obj);
++			return yaffs_DeleteFile(obj);
+ 			break;
+ 		case YAFFS_OBJECT_TYPE_DIRECTORY:
+ 			return yaffs_DeleteDirectory(obj);
+@@ -5248,21 +5284,22 @@ static int yaffs_UnlinkWorker(yaffs_Obje
+ 		default:
+ 			return YAFFS_FAIL;
+ 		}
+-	}
++	} else
++		return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir,
++					   _Y("unlinked"), 0, 0);
+ }
+ 
+ 
+-static int yaffs_UnlinkObject( yaffs_Object *obj)
++static int yaffs_UnlinkObject(yaffs_Object *obj)
+ {
+ 
+-	if (obj && obj->unlinkAllowed) {
++	if (obj && obj->unlinkAllowed)
+ 		return yaffs_UnlinkWorker(obj);
+-	}
+ 
+ 	return YAFFS_FAIL;
+ 
+ }
+-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name)
++int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name)
+ {
+ 	yaffs_Object *obj;
+ 
+@@ -5272,8 +5309,8 @@ int yaffs_Unlink(yaffs_Object * dir, con
+ 
+ /*----------------------- Initialisation Scanning ---------------------- */
+ 
+-static void yaffs_HandleShadowedObject(yaffs_Device * dev, int objId,
+-				       int backwardScanning)
++static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId,
++				int backwardScanning)
+ {
+ 	yaffs_Object *obj;
+ 
+@@ -5286,9 +5323,8 @@ static void yaffs_HandleShadowedObject(y
+ 		/* Handle YAFFS2 case (backward scanning)
+ 		 * If the shadowed object exists then ignore.
+ 		 */
+-		if (yaffs_FindObjectByNumber(dev, objId)) {
++		if (yaffs_FindObjectByNumber(dev, objId))
+ 			return;
+-		}
+ 	}
+ 
+ 	/* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc.
+@@ -5297,6 +5333,8 @@ static void yaffs_HandleShadowedObject(y
+ 	obj =
+ 	    yaffs_FindOrCreateObjectByNumber(dev, objId,
+ 					     YAFFS_OBJECT_TYPE_FILE);
++	if (!obj)
++		return;
+ 	yaffs_AddObjectToDirectory(dev->unlinkedDir, obj);
+ 	obj->variant.fileVariant.shrinkSize = 0;
+ 	obj->valid = 1;		/* So that we don't read any other info for this file */
+@@ -5325,44 +5363,77 @@ static void yaffs_HardlinkFixup(yaffs_De
+ 		if (in) {
+ 			/* Add the hardlink pointers */
+ 			hl->variant.hardLinkVariant.equivalentObject = in;
+-			list_add(&hl->hardLinks, &in->hardLinks);
++			ylist_add(&hl->hardLinks, &in->hardLinks);
+ 		} else {
+ 			/* Todo Need to report/handle this better.
+ 			 * Got a problem... hardlink to a non-existant object
+ 			 */
+ 			hl->variant.hardLinkVariant.equivalentObject = NULL;
+-			INIT_LIST_HEAD(&hl->hardLinks);
++			YINIT_LIST_HEAD(&hl->hardLinks);
+ 
+ 		}
+-
+ 	}
++}
++
++
+ 
++
++
++static int ybicmp(const void *a, const void *b)
++{
++	register int aseq = ((yaffs_BlockIndex *)a)->seq;
++	register int bseq = ((yaffs_BlockIndex *)b)->seq;
++	register int ablock = ((yaffs_BlockIndex *)a)->block;
++	register int bblock = ((yaffs_BlockIndex *)b)->block;
++	if (aseq == bseq)
++		return ablock - bblock;
++	else
++		return aseq - bseq;
+ }
+ 
+ 
++struct yaffs_ShadowFixerStruct {
++	int objectId;
++	int shadowedId;
++	struct yaffs_ShadowFixerStruct *next;
++};
++
+ 
++static void yaffs_StripDeletedObjects(yaffs_Device *dev)
++{
++	/*
++	*  Sort out state of unlinked and deleted objects after scanning.
++	*/
++	struct ylist_head *i;
++	struct ylist_head *n;
++	yaffs_Object *l;
+ 
++	/* Soft delete all the unlinked files */
++	ylist_for_each_safe(i, n,
++		&dev->unlinkedDir->variant.directoryVariant.children) {
++		if (i) {
++			l = ylist_entry(i, yaffs_Object, siblings);
++			yaffs_DeleteObject(l);
++		}
++	}
+ 
+-static int ybicmp(const void *a, const void *b){
+-    register int aseq = ((yaffs_BlockIndex *)a)->seq;
+-    register int bseq = ((yaffs_BlockIndex *)b)->seq;
+-    register int ablock = ((yaffs_BlockIndex *)a)->block;
+-    register int bblock = ((yaffs_BlockIndex *)b)->block;
+-    if( aseq == bseq )
+-        return ablock - bblock;
+-    else
+-        return aseq - bseq;
++	ylist_for_each_safe(i, n,
++		&dev->deletedDir->variant.directoryVariant.children) {
++		if (i) {
++			l = ylist_entry(i, yaffs_Object, siblings);
++			yaffs_DeleteObject(l);
++		}
++	}
+ 
+ }
+ 
+-static int yaffs_Scan(yaffs_Device * dev)
++static int yaffs_Scan(yaffs_Device *dev)
+ {
+ 	yaffs_ExtendedTags tags;
+ 	int blk;
+ 	int blockIterator;
+ 	int startIterator;
+ 	int endIterator;
+-	int nBlocksToScan = 0;
+ 	int result;
+ 
+ 	int chunk;
+@@ -5371,26 +5442,19 @@ static int yaffs_Scan(yaffs_Device * dev
+ 	yaffs_BlockState state;
+ 	yaffs_Object *hardList = NULL;
+ 	yaffs_BlockInfo *bi;
+-	int sequenceNumber;
++	__u32 sequenceNumber;
+ 	yaffs_ObjectHeader *oh;
+ 	yaffs_Object *in;
+ 	yaffs_Object *parent;
+-	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
+ 
+ 	int alloc_failed = 0;
+ 
++	struct yaffs_ShadowFixerStruct *shadowFixerList = NULL;
++
+ 
+ 	__u8 *chunkData;
+ 
+-	yaffs_BlockIndex *blockIndex = NULL;
+ 
+-	if (dev->isYaffs2) {
+-		T(YAFFS_TRACE_SCAN,
+-		  (TSTR("yaffs_Scan is not for YAFFS2!" TENDSTR)));
+-		return YAFFS_FAIL;
+-	}
+-
+-	//TODO  Throw all the yaffs2 stuuf out of yaffs_Scan since it is only for yaffs1 format.
+ 
+ 	T(YAFFS_TRACE_SCAN,
+ 	  (TSTR("yaffs_Scan starts  intstartblk %d intendblk %d..." TENDSTR),
+@@ -5400,12 +5464,6 @@ static int yaffs_Scan(yaffs_Device * dev
+ 
+ 	dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
+ 
+-	if (dev->isYaffs2) {
+-		blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
+-		if(!blockIndex)
+-			return YAFFS_FAIL;
+-	}
+-
+ 	/* Scan all the blocks to determine their state */
+ 	for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) {
+ 		bi = yaffs_GetBlockInfo(dev, blk);
+@@ -5418,6 +5476,9 @@ static int yaffs_Scan(yaffs_Device * dev
+ 		bi->blockState = state;
+ 		bi->sequenceNumber = sequenceNumber;
+ 
++		if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
++			bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
++
+ 		T(YAFFS_TRACE_SCAN_DEBUG,
+ 		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
+ 		   state, sequenceNumber));
+@@ -5430,70 +5491,21 @@ static int yaffs_Scan(yaffs_Device * dev
+ 			  (TSTR("Block empty " TENDSTR)));
+ 			dev->nErasedBlocks++;
+ 			dev->nFreeChunks += dev->nChunksPerBlock;
+-		} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
+-
+-			/* Determine the highest sequence number */
+-			if (dev->isYaffs2 &&
+-			    sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
+-			    sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
+-
+-				blockIndex[nBlocksToScan].seq = sequenceNumber;
+-				blockIndex[nBlocksToScan].block = blk;
+-
+-				nBlocksToScan++;
+-
+-				if (sequenceNumber >= dev->sequenceNumber) {
+-					dev->sequenceNumber = sequenceNumber;
+-				}
+-			} else if (dev->isYaffs2) {
+-				/* TODO: Nasty sequence number! */
+-				T(YAFFS_TRACE_SCAN,
+-				  (TSTR
+-				   ("Block scanning block %d has bad sequence number %d"
+-				    TENDSTR), blk, sequenceNumber));
+-
+-			}
+ 		}
+ 	}
+ 
+-	/* Sort the blocks
+-	 * Dungy old bubble sort for now...
+-	 */
+-	if (dev->isYaffs2) {
+-		yaffs_BlockIndex temp;
+-		int i;
+-		int j;
+-
+-		for (i = 0; i < nBlocksToScan; i++)
+-			for (j = i + 1; j < nBlocksToScan; j++)
+-				if (blockIndex[i].seq > blockIndex[j].seq) {
+-					temp = blockIndex[j];
+-					blockIndex[j] = blockIndex[i];
+-					blockIndex[i] = temp;
+-				}
+-	}
+-
+-	/* Now scan the blocks looking at the data. */
+-	if (dev->isYaffs2) {
+-		startIterator = 0;
+-		endIterator = nBlocksToScan - 1;
+-		T(YAFFS_TRACE_SCAN_DEBUG,
+-		  (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan));
+-	} else {
+-		startIterator = dev->internalStartBlock;
+-		endIterator = dev->internalEndBlock;
+-	}
++	startIterator = dev->internalStartBlock;
++	endIterator = dev->internalEndBlock;
+ 
+ 	/* For each block.... */
+ 	for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator;
+ 	     blockIterator++) {
+ 
+-		if (dev->isYaffs2) {
+-			/* get the block to scan in the correct order */
+-			blk = blockIndex[blockIterator].block;
+-		} else {
+-			blk = blockIterator;
+-		}
++		YYIELD();
++
++		YYIELD();
++
++		blk = blockIterator;
+ 
+ 		bi = yaffs_GetBlockInfo(dev, blk);
+ 		state = bi->blockState;
+@@ -5511,7 +5523,7 @@ static int yaffs_Scan(yaffs_Device * dev
+ 
+ 			/* Let's have a good look at this chunk... */
+ 
+-			if (!dev->isYaffs2 && tags.chunkDeleted) {
++			if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) {
+ 				/* YAFFS1 only...
+ 				 * A deleted chunk
+ 				 */
+@@ -5540,18 +5552,6 @@ static int yaffs_Scan(yaffs_Device * dev
+ 					dev->allocationBlockFinder = blk;
+ 					/* Set it to here to encourage the allocator to go forth from here. */
+ 
+-					/* Yaffs2 sanity check:
+-					 * This should be the one with the highest sequence number
+-					 */
+-					if (dev->isYaffs2
+-					    && (dev->sequenceNumber !=
+-						bi->sequenceNumber)) {
+-						T(YAFFS_TRACE_ALWAYS,
+-						  (TSTR
+-						   ("yaffs: Allocation block %d was not highest sequence id:"
+-						    " block seq = %d, dev seq = %d"
+-						    TENDSTR), blk,bi->sequenceNumber,dev->sequenceNumber));
+-					}
+ 				}
+ 
+ 				dev->nFreeChunks += (dev->nChunksPerBlock - c);
+@@ -5570,11 +5570,11 @@ static int yaffs_Scan(yaffs_Device * dev
+ 				 * the same chunkId).
+ 				 */
+ 
+-				if(!in)
++				if (!in)
+ 					alloc_failed = 1;
+ 
+-				if(in){
+-					if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1))
++				if (in) {
++					if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1))
+ 						alloc_failed = 1;
+ 				}
+ 
+@@ -5617,7 +5617,7 @@ static int yaffs_Scan(yaffs_Device * dev
+ 					 * deleted, and worse still it has changed type. Delete the old object.
+ 					 */
+ 
+-					yaffs_DestroyObject(in);
++					yaffs_DeleteObject(in);
+ 
+ 					in = 0;
+ 				}
+@@ -5627,14 +5627,20 @@ static int yaffs_Scan(yaffs_Device * dev
+ 								      objectId,
+ 								      oh->type);
+ 
+-				if(!in)
++				if (!in)
+ 					alloc_failed = 1;
+ 
+ 				if (in && oh->shadowsObject > 0) {
+-					yaffs_HandleShadowedObject(dev,
+-								   oh->
+-								   shadowsObject,
+-								   0);
++
++					struct yaffs_ShadowFixerStruct *fixer;
++					fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct));
++					if (fixer) {
++						fixer->next = shadowFixerList;
++						shadowFixerList = fixer;
++						fixer->objectId = tags.objectId;
++						fixer->shadowedId = oh->shadowsObject;
++					}
++
+ 				}
+ 
+ 				if (in && in->valid) {
+@@ -5643,12 +5649,10 @@ static int yaffs_Scan(yaffs_Device * dev
+ 					unsigned existingSerial = in->serial;
+ 					unsigned newSerial = tags.serialNumber;
+ 
+-					if (dev->isYaffs2 ||
+-					    ((existingSerial + 1) & 3) ==
+-					    newSerial) {
++					if (((existingSerial + 1) & 3) == newSerial) {
+ 						/* Use new one - destroy the exisiting one */
+ 						yaffs_DeleteChunk(dev,
+-								  in->chunkId,
++								  in->hdrChunk,
+ 								  1, __LINE__);
+ 						in->valid = 0;
+ 					} else {
+@@ -5681,7 +5685,8 @@ static int yaffs_Scan(yaffs_Device * dev
+ 					in->yst_ctime = oh->yst_ctime;
+ 					in->yst_rdev = oh->yst_rdev;
+ #endif
+-					in->chunkId = chunk;
++					in->hdrChunk = chunk;
++					in->serial = tags.serialNumber;
+ 
+ 				} else if (in && !in->valid) {
+ 					/* we need to load this info */
+@@ -5705,7 +5710,8 @@ static int yaffs_Scan(yaffs_Device * dev
+ 					in->yst_ctime = oh->yst_ctime;
+ 					in->yst_rdev = oh->yst_rdev;
+ #endif
+-					in->chunkId = chunk;
++					in->hdrChunk = chunk;
++					in->serial = tags.serialNumber;
+ 
+ 					yaffs_SetObjectName(in, oh->name);
+ 					in->dirty = 0;
+@@ -5718,25 +5724,25 @@ static int yaffs_Scan(yaffs_Device * dev
+ 					    yaffs_FindOrCreateObjectByNumber
+ 					    (dev, oh->parentObjectId,
+ 					     YAFFS_OBJECT_TYPE_DIRECTORY);
+-					if (parent->variantType ==
++					if (!parent)
++						alloc_failed = 1;
++					if (parent && parent->variantType ==
+ 					    YAFFS_OBJECT_TYPE_UNKNOWN) {
+ 						/* Set up as a directory */
+ 						parent->variantType =
+-						    YAFFS_OBJECT_TYPE_DIRECTORY;
+-						INIT_LIST_HEAD(&parent->variant.
+-							       directoryVariant.
+-							       children);
+-					} else if (parent->variantType !=
+-						   YAFFS_OBJECT_TYPE_DIRECTORY)
+-					{
++							YAFFS_OBJECT_TYPE_DIRECTORY;
++						YINIT_LIST_HEAD(&parent->variant.
++								directoryVariant.
++								children);
++					} else if (!parent || parent->variantType !=
++						   YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 						/* Hoosterman, another problem....
+ 						 * We're trying to use a non-directory as a directory
+ 						 */
+ 
+ 						T(YAFFS_TRACE_ERROR,
+ 						  (TSTR
+-						   ("yaffs tragedy: attempting to use non-directory as"
+-						    " a directory in scan. Put in lost+found."
++						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
+ 						    TENDSTR)));
+ 						parent = dev->lostNFoundDir;
+ 					}
+@@ -5760,15 +5766,6 @@ static int yaffs_Scan(yaffs_Device * dev
+ 						/* Todo got a problem */
+ 						break;
+ 					case YAFFS_OBJECT_TYPE_FILE:
+-						if (dev->isYaffs2
+-						    && oh->isShrink) {
+-							/* Prune back the shrunken chunks */
+-							yaffs_PruneResizedChunks
+-							    (in, oh->fileSize);
+-							/* Mark the block as having a shrinkHeader */
+-							bi->hasShrinkHeader = 1;
+-						}
+-
+ 						if (dev->useHeaderFileSize)
+ 
+ 							in->variant.fileVariant.
+@@ -5778,11 +5775,11 @@ static int yaffs_Scan(yaffs_Device * dev
+ 						break;
+ 					case YAFFS_OBJECT_TYPE_HARDLINK:
+ 						in->variant.hardLinkVariant.
+-						    equivalentObjectId =
+-						    oh->equivalentObjectId;
++							equivalentObjectId =
++							oh->equivalentObjectId;
+ 						in->hardLinks.next =
+-						    (struct list_head *)
+-						    hardList;
++							(struct ylist_head *)
++							hardList;
+ 						hardList = in;
+ 						break;
+ 					case YAFFS_OBJECT_TYPE_DIRECTORY:
+@@ -5794,15 +5791,17 @@ static int yaffs_Scan(yaffs_Device * dev
+ 					case YAFFS_OBJECT_TYPE_SYMLINK:
+ 						in->variant.symLinkVariant.alias =
+ 						    yaffs_CloneString(oh->alias);
+-						if(!in->variant.symLinkVariant.alias)
++						if (!in->variant.symLinkVariant.alias)
+ 							alloc_failed = 1;
+ 						break;
+ 					}
+ 
++/*
+ 					if (parent == dev->deletedDir) {
+ 						yaffs_DestroyObject(in);
+ 						bi->hasShrinkHeader = 1;
+ 					}
++*/
+ 				}
+ 			}
+ 		}
+@@ -5823,10 +5822,6 @@ static int yaffs_Scan(yaffs_Device * dev
+ 
+ 	}
+ 
+-	if (blockIndex) {
+-		YFREE(blockIndex);
+-	}
+-
+ 
+ 	/* Ok, we've done all the scanning.
+ 	 * Fix up the hard link chains.
+@@ -5834,32 +5829,36 @@ static int yaffs_Scan(yaffs_Device * dev
+ 	 * hardlinks.
+ 	 */
+ 
+-	yaffs_HardlinkFixup(dev,hardList);
++	yaffs_HardlinkFixup(dev, hardList);
+ 
+-	/* Handle the unlinked files. Since they were left in an unlinked state we should
+-	 * just delete them.
+-	 */
++	/* Fix up any shadowed objects */
+ 	{
+-		struct list_head *i;
+-		struct list_head *n;
++		struct yaffs_ShadowFixerStruct *fixer;
++		yaffs_Object *obj;
+ 
+-		yaffs_Object *l;
+-		/* Soft delete all the unlinked files */
+-		list_for_each_safe(i, n,
+-				   &dev->unlinkedDir->variant.directoryVariant.
+-				   children) {
+-			if (i) {
+-				l = list_entry(i, yaffs_Object, siblings);
+-				yaffs_DestroyObject(l);
+-			}
++		while (shadowFixerList) {
++			fixer = shadowFixerList;
++			shadowFixerList = fixer->next;
++			/* Complete the rename transaction by deleting the shadowed object
++			 * then setting the object header to unshadowed.
++			 */
++			obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId);
++			if (obj)
++				yaffs_DeleteObject(obj);
++
++			obj = yaffs_FindObjectByNumber(dev, fixer->objectId);
++
++			if (obj)
++				yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0);
++
++			YFREE(fixer);
+ 		}
+ 	}
+ 
+ 	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
+ 
+-	if(alloc_failed){
++	if (alloc_failed)
+ 		return YAFFS_FAIL;
+-	}
+ 
+ 	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR)));
+ 
+@@ -5871,25 +5870,27 @@ static void yaffs_CheckObjectDetailsLoad
+ {
+ 	__u8 *chunkData;
+ 	yaffs_ObjectHeader *oh;
+-	yaffs_Device *dev = in->myDev;
++	yaffs_Device *dev;
+ 	yaffs_ExtendedTags tags;
+ 	int result;
+ 	int alloc_failed = 0;
+ 
+-	if(!in)
++	if (!in)
+ 		return;
+ 
++	dev = in->myDev;
++
+ #if 0
+-	T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR),
++	T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR),
+ 		in->objectId,
+ 		in->lazyLoaded ? "not yet" : "already"));
+ #endif
+ 
+-	if(in->lazyLoaded){
++	if (in->lazyLoaded && in->hdrChunk > 0) {
+ 		in->lazyLoaded = 0;
+ 		chunkData = yaffs_GetTempBuffer(dev, __LINE__);
+ 
+-		result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags);
++		result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags);
+ 		oh = (yaffs_ObjectHeader *) chunkData;
+ 
+ 		in->yst_mode = oh->yst_mode;
+@@ -5911,18 +5912,18 @@ static void yaffs_CheckObjectDetailsLoad
+ #endif
+ 		yaffs_SetObjectName(in, oh->name);
+ 
+-		if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){
+-			 in->variant.symLinkVariant.alias =
++		if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
++			in->variant.symLinkVariant.alias =
+ 						    yaffs_CloneString(oh->alias);
+-			if(!in->variant.symLinkVariant.alias)
++			if (!in->variant.symLinkVariant.alias)
+ 				alloc_failed = 1; /* Not returned to caller */
+ 		}
+ 
+-		yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__);
++		yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
+ 	}
+ }
+ 
+-static int yaffs_ScanBackwards(yaffs_Device * dev)
++static int yaffs_ScanBackwards(yaffs_Device *dev)
+ {
+ 	yaffs_ExtendedTags tags;
+ 	int blk;
+@@ -5938,7 +5939,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 	yaffs_BlockState state;
+ 	yaffs_Object *hardList = NULL;
+ 	yaffs_BlockInfo *bi;
+-	int sequenceNumber;
++	__u32 sequenceNumber;
+ 	yaffs_ObjectHeader *oh;
+ 	yaffs_Object *in;
+ 	yaffs_Object *parent;
+@@ -5972,12 +5973,12 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 	blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
+ 
+-	if(!blockIndex) {
++	if (!blockIndex) {
+ 		blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex));
+ 		altBlockIndex = 1;
+ 	}
+ 
+-	if(!blockIndex) {
++	if (!blockIndex) {
+ 		T(YAFFS_TRACE_SCAN,
+ 		  (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR)));
+ 		return YAFFS_FAIL;
+@@ -5999,15 +6000,17 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 		bi->blockState = state;
+ 		bi->sequenceNumber = sequenceNumber;
+ 
+-		if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA)
++		if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA)
+ 			bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT;
++		if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
++			bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
+ 
+ 		T(YAFFS_TRACE_SCAN_DEBUG,
+ 		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
+ 		   state, sequenceNumber));
+ 
+ 
+-		if(state == YAFFS_BLOCK_STATE_CHECKPOINT){
++		if (state == YAFFS_BLOCK_STATE_CHECKPOINT) {
+ 			dev->blocksInCheckpoint++;
+ 
+ 		} else if (state == YAFFS_BLOCK_STATE_DEAD) {
+@@ -6021,8 +6024,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 		} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
+ 
+ 			/* Determine the highest sequence number */
+-			if (dev->isYaffs2 &&
+-			    sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
++			if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
+ 			    sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
+ 
+ 				blockIndex[nBlocksToScan].seq = sequenceNumber;
+@@ -6030,10 +6032,9 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 				nBlocksToScan++;
+ 
+-				if (sequenceNumber >= dev->sequenceNumber) {
++				if (sequenceNumber >= dev->sequenceNumber)
+ 					dev->sequenceNumber = sequenceNumber;
+-				}
+-			} else if (dev->isYaffs2) {
++			} else {
+ 				/* TODO: Nasty sequence number! */
+ 				T(YAFFS_TRACE_SCAN,
+ 				  (TSTR
+@@ -6053,11 +6054,13 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 	/* Sort the blocks */
+ #ifndef CONFIG_YAFFS_USE_OWN_SORT
+-	yaffs_qsort(blockIndex, nBlocksToScan,
+-		sizeof(yaffs_BlockIndex), ybicmp);
++	{
++		/* Use qsort now. */
++		yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp);
++	}
+ #else
+ 	{
+-	 	/* Dungy old bubble sort... */
++		/* Dungy old bubble sort... */
+ 
+ 		yaffs_BlockIndex temp;
+ 		int i;
+@@ -6075,7 +6078,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 	YYIELD();
+ 
+-    	T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
++	T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
+ 
+ 	/* Now scan the blocks looking at the data. */
+ 	startIterator = 0;
+@@ -6085,10 +6088,10 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 	/* For each block.... backwards */
+ 	for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator;
+-	     blockIterator--) {
+-	        /* Cooperative multitasking! This loop can run for so
++			blockIterator--) {
++		/* Cooperative multitasking! This loop can run for so
+ 		   long that watchdog timers expire. */
+-	        YYIELD();
++		YYIELD();
+ 
+ 		/* get the block to scan in the correct order */
+ 		blk = blockIndex[blockIterator].block;
+@@ -6127,10 +6130,8 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 				 * this is the one being allocated from
+ 				 */
+ 
+-				if(foundChunksInBlock)
+-				{
++				if (foundChunksInBlock) {
+ 					/* This is a chunk that was skipped due to failing the erased check */
+-
+ 				} else if (c == 0) {
+ 					/* We're looking at the first chunk in the block so the block is unused */
+ 					state = YAFFS_BLOCK_STATE_EMPTY;
+@@ -6138,7 +6139,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 				} else {
+ 					if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
+ 					    state == YAFFS_BLOCK_STATE_ALLOCATING) {
+-					    	if(dev->sequenceNumber == bi->sequenceNumber) {
++						if (dev->sequenceNumber == bi->sequenceNumber) {
+ 							/* this is the block being allocated from */
+ 
+ 							T(YAFFS_TRACE_SCAN,
+@@ -6150,27 +6151,31 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 							dev->allocationBlock = blk;
+ 							dev->allocationPage = c;
+ 							dev->allocationBlockFinder = blk;
+-						}
+-						else {
++						} else {
+ 							/* This is a partially written block that is not
+ 							 * the current allocation block. This block must have
+ 							 * had a write failure, so set up for retirement.
+ 							 */
+ 
+-							 bi->needsRetiring = 1;
++							 /* bi->needsRetiring = 1; ??? TODO */
+ 							 bi->gcPrioritise = 1;
+ 
+ 							 T(YAFFS_TRACE_ALWAYS,
+-							 (TSTR("Partially written block %d being set for retirement" TENDSTR),
++							 (TSTR("Partially written block %d detected" TENDSTR),
+ 							 blk));
+ 						}
+-
+ 					}
+-
+ 				}
+ 
+ 				dev->nFreeChunks++;
+ 
++			} else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) {
++				T(YAFFS_TRACE_SCAN,
++				  (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR),
++				  blk, c));
++
++				  dev->nFreeChunks++;
++
+ 			} else if (tags.chunkId > 0) {
+ 				/* chunkId > 0 so it is a data chunk... */
+ 				unsigned int endpos;
+@@ -6187,7 +6192,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 								      tags.
+ 								      objectId,
+ 								      YAFFS_OBJECT_TYPE_FILE);
+-				if(!in){
++				if (!in) {
+ 					/* Out of memory */
+ 					alloc_failed = 1;
+ 				}
+@@ -6197,8 +6202,8 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 				    && chunkBase <
+ 				    in->variant.fileVariant.shrinkSize) {
+ 					/* This has not been invalidated by a resize */
+-					if(!yaffs_PutChunkIntoFile(in, tags.chunkId,
+-							       chunk, -1)){
++					if (!yaffs_PutChunkIntoFile(in, tags.chunkId,
++							       chunk, -1)) {
+ 						alloc_failed = 1;
+ 					}
+ 
+@@ -6221,7 +6226,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 						    scannedFileSize;
+ 					}
+ 
+-				} else if(in) {
++				} else if (in) {
+ 					/* This chunk has been invalidated by a resize, so delete */
+ 					yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
+ 
+@@ -6242,6 +6247,8 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 					in = yaffs_FindOrCreateObjectByNumber
+ 					    (dev, tags.objectId,
+ 					     tags.extraObjectType);
++					if (!in)
++						alloc_failed = 1;
+ 				}
+ 
+ 				if (!in ||
+@@ -6251,8 +6258,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 				    tags.extraShadows ||
+ 				    (!in->valid &&
+ 				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
+-				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))
+-				    ) {
++				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) {
+ 
+ 					/* If we don't have  valid info then we need to read the chunk
+ 					 * TODO In future we can probably defer reading the chunk and
+@@ -6266,8 +6272,17 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 					oh = (yaffs_ObjectHeader *) chunkData;
+ 
+-					if (!in)
++					if (dev->inbandTags) {
++						/* Fix up the header if they got corrupted by inband tags */
++						oh->shadowsObject = oh->inbandShadowsObject;
++						oh->isShrink = oh->inbandIsShrink;
++					}
++
++					if (!in) {
+ 						in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type);
++						if (!in)
++							alloc_failed = 1;
++					}
+ 
+ 				}
+ 
+@@ -6275,10 +6290,9 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 					/* TODO Hoosterman we have a problem! */
+ 					T(YAFFS_TRACE_ERROR,
+ 					  (TSTR
+-					   ("yaffs tragedy: Could not make object for object  %d  "
+-					    "at chunk %d during scan"
++					   ("yaffs tragedy: Could not make object for object  %d at chunk %d during scan"
+ 					    TENDSTR), tags.objectId, chunk));
+-
++					continue;
+ 				}
+ 
+ 				if (in->valid) {
+@@ -6289,10 +6303,9 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 					if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) &&
+ 					     ((oh &&
+-					       oh-> type == YAFFS_OBJECT_TYPE_FILE)||
++					       oh->type == YAFFS_OBJECT_TYPE_FILE) ||
+ 					      (tags.extraHeaderInfoAvailable  &&
+-					       tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))
+-					    ) {
++					       tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) {
+ 						__u32 thisSize =
+ 						    (oh) ? oh->fileSize : tags.
+ 						    extraFileLength;
+@@ -6300,7 +6313,9 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 						    (oh) ? oh->
+ 						    parentObjectId : tags.
+ 						    extraParentObjectId;
+-						unsigned isShrink =
++
++
++						isShrink =
+ 						    (oh) ? oh->isShrink : tags.
+ 						    extraIsShrinkHeader;
+ 
+@@ -6323,9 +6338,8 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 							    thisSize;
+ 						}
+ 
+-						if (isShrink) {
++						if (isShrink)
+ 							bi->hasShrinkHeader = 1;
+-						}
+ 
+ 					}
+ 					/* Use existing - destroy this one. */
+@@ -6333,6 +6347,17 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 				}
+ 
++				if (!in->valid && in->variantType !=
++				    (oh ? oh->type : tags.extraObjectType))
++					T(YAFFS_TRACE_ERROR, (
++						TSTR("yaffs tragedy: Bad object type, "
++					    TCONT("%d != %d, for object %d at chunk ")
++					    TCONT("%d during scan")
++						TENDSTR), oh ?
++					    oh->type : tags.extraObjectType,
++					    in->variantType, tags.objectId,
++					    chunk));
++
+ 				if (!in->valid &&
+ 				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
+ 				     tags.objectId ==
+@@ -6340,7 +6365,7 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 					/* We only load some info, don't fiddle with directory structure */
+ 					in->valid = 1;
+ 
+-					if(oh) {
++					if (oh) {
+ 						in->variantType = oh->type;
+ 
+ 						in->yst_mode = oh->yst_mode;
+@@ -6365,15 +6390,15 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 						in->lazyLoaded = 1;
+ 					}
+ 
+-					in->chunkId = chunk;
++					in->hdrChunk = chunk;
+ 
+ 				} else if (!in->valid) {
+ 					/* we need to load this info */
+ 
+ 					in->valid = 1;
+-					in->chunkId = chunk;
++					in->hdrChunk = chunk;
+ 
+-					if(oh) {
++					if (oh) {
+ 						in->variantType = oh->type;
+ 
+ 						in->yst_mode = oh->yst_mode;
+@@ -6403,20 +6428,19 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 						yaffs_SetObjectName(in, oh->name);
+ 						parent =
+ 						    yaffs_FindOrCreateObjectByNumber
+-					    		(dev, oh->parentObjectId,
+-					     		 YAFFS_OBJECT_TYPE_DIRECTORY);
++							(dev, oh->parentObjectId,
++							 YAFFS_OBJECT_TYPE_DIRECTORY);
+ 
+ 						 fileSize = oh->fileSize;
+- 						 isShrink = oh->isShrink;
++						 isShrink = oh->isShrink;
+ 						 equivalentObjectId = oh->equivalentObjectId;
+ 
+-					}
+-					else {
++					} else {
+ 						in->variantType = tags.extraObjectType;
+ 						parent =
+ 						    yaffs_FindOrCreateObjectByNumber
+-					    		(dev, tags.extraParentObjectId,
+-					     		 YAFFS_OBJECT_TYPE_DIRECTORY);
++							(dev, tags.extraParentObjectId,
++							 YAFFS_OBJECT_TYPE_DIRECTORY);
+ 						 fileSize = tags.extraFileLength;
+ 						 isShrink = tags.extraIsShrinkHeader;
+ 						 equivalentObjectId = tags.extraEquivalentObjectId;
+@@ -6425,29 +6449,30 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 					}
+ 					in->dirty = 0;
+ 
++					if (!parent)
++						alloc_failed = 1;
++
+ 					/* directory stuff...
+ 					 * hook up to parent
+ 					 */
+ 
+-					if (parent->variantType ==
++					if (parent && parent->variantType ==
+ 					    YAFFS_OBJECT_TYPE_UNKNOWN) {
+ 						/* Set up as a directory */
+ 						parent->variantType =
+-						    YAFFS_OBJECT_TYPE_DIRECTORY;
+-						INIT_LIST_HEAD(&parent->variant.
+-							       directoryVariant.
+-							       children);
+-					} else if (parent->variantType !=
+-						   YAFFS_OBJECT_TYPE_DIRECTORY)
+-					{
++							YAFFS_OBJECT_TYPE_DIRECTORY;
++						YINIT_LIST_HEAD(&parent->variant.
++							directoryVariant.
++							children);
++					} else if (!parent || parent->variantType !=
++						   YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 						/* Hoosterman, another problem....
+ 						 * We're trying to use a non-directory as a directory
+ 						 */
+ 
+ 						T(YAFFS_TRACE_ERROR,
+ 						  (TSTR
+-						   ("yaffs tragedy: attempting to use non-directory as"
+-						    " a directory in scan. Put in lost+found."
++						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
+ 						    TENDSTR)));
+ 						parent = dev->lostNFoundDir;
+ 					}
+@@ -6494,12 +6519,12 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 
+ 						break;
+ 					case YAFFS_OBJECT_TYPE_HARDLINK:
+-						if(!itsUnlinked) {
+-						  in->variant.hardLinkVariant.equivalentObjectId =
+-						    equivalentObjectId;
+-						  in->hardLinks.next =
+-						    (struct list_head *) hardList;
+-						  hardList = in;
++						if (!itsUnlinked) {
++							in->variant.hardLinkVariant.equivalentObjectId =
++								equivalentObjectId;
++							in->hardLinks.next =
++								(struct ylist_head *) hardList;
++							hardList = in;
+ 						}
+ 						break;
+ 					case YAFFS_OBJECT_TYPE_DIRECTORY:
+@@ -6509,12 +6534,11 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 						/* Do nothing */
+ 						break;
+ 					case YAFFS_OBJECT_TYPE_SYMLINK:
+-						if(oh){
+-						   in->variant.symLinkVariant.alias =
+-						    yaffs_CloneString(oh->
+-								      alias);
+-						   if(!in->variant.symLinkVariant.alias)
+-						   	alloc_failed = 1;
++						if (oh) {
++							in->variant.symLinkVariant.alias =
++								yaffs_CloneString(oh->alias);
++							if (!in->variant.symLinkVariant.alias)
++								alloc_failed = 1;
+ 						}
+ 						break;
+ 					}
+@@ -6551,75 +6575,129 @@ static int yaffs_ScanBackwards(yaffs_Dev
+ 	 * We should now have scanned all the objects, now it's time to add these
+ 	 * hardlinks.
+ 	 */
+-	yaffs_HardlinkFixup(dev,hardList);
++	yaffs_HardlinkFixup(dev, hardList);
+ 
+ 
+-	/*
+-	*  Sort out state of unlinked and deleted objects.
+-	*/
+-	{
+-		struct list_head *i;
+-		struct list_head *n;
++	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
+ 
+-		yaffs_Object *l;
++	if (alloc_failed)
++		return YAFFS_FAIL;
+ 
+-		/* Soft delete all the unlinked files */
+-		list_for_each_safe(i, n,
+-				   &dev->unlinkedDir->variant.directoryVariant.
+-				   children) {
+-			if (i) {
+-				l = list_entry(i, yaffs_Object, siblings);
+-				yaffs_DestroyObject(l);
+-			}
+-		}
++	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR)));
+ 
+-		/* Soft delete all the deletedDir files */
+-		list_for_each_safe(i, n,
+-				   &dev->deletedDir->variant.directoryVariant.
+-				   children) {
+-			if (i) {
+-				l = list_entry(i, yaffs_Object, siblings);
+-				yaffs_DestroyObject(l);
++	return YAFFS_OK;
++}
+ 
+-			}
++/*------------------------------  Directory Functions ----------------------------- */
++
++static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj)
++{
++	struct ylist_head *lh;
++	yaffs_Object *listObj;
++
++	int count = 0;
++
++	if (!obj) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR)));
++		YBUG();
++		return;
++	}
++
++	if (yaffs_SkipVerification(obj->myDev))
++		return;
++
++	if (!obj->parent) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR)));
++		YBUG();
++		return;
++	}
++
++	if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR)));
++		YBUG();
++	}
++
++	/* Iterate through the objects in each hash entry */
++
++	ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) {
++		if (lh) {
++			listObj = ylist_entry(lh, yaffs_Object, siblings);
++			yaffs_VerifyObject(listObj);
++			if (obj == listObj)
++				count++;
+ 		}
++	 }
++
++	if (count != 1) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count));
++		YBUG();
+ 	}
++}
+ 
+-	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
++static void yaffs_VerifyDirectory(yaffs_Object *directory)
++{
++	struct ylist_head *lh;
++	yaffs_Object *listObj;
+ 
+-	if(alloc_failed){
+-		return YAFFS_FAIL;
++	if (!directory) {
++		YBUG();
++		return;
+ 	}
+ 
+-	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR)));
++	if (yaffs_SkipFullVerification(directory->myDev))
++		return;
+ 
+-	return YAFFS_OK;
++	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType));
++		YBUG();
++	}
++
++	/* Iterate through the objects in each hash entry */
++
++	ylist_for_each(lh, &directory->variant.directoryVariant.children) {
++		if (lh) {
++			listObj = ylist_entry(lh, yaffs_Object, siblings);
++			if (listObj->parent != directory) {
++				T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent));
++				YBUG();
++			}
++			yaffs_VerifyObjectInDirectory(listObj);
++		}
++	}
+ }
+ 
+-/*------------------------------  Directory Functions ----------------------------- */
+ 
+-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj)
++static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj)
+ {
+ 	yaffs_Device *dev = obj->myDev;
++	yaffs_Object *parent;
++
++	yaffs_VerifyObjectInDirectory(obj);
++	parent = obj->parent;
++
++	yaffs_VerifyDirectory(parent);
+ 
+-	if(dev && dev->removeObjectCallback)
++	if (dev && dev->removeObjectCallback)
+ 		dev->removeObjectCallback(obj);
+ 
+-	list_del_init(&obj->siblings);
++
++	ylist_del_init(&obj->siblings);
+ 	obj->parent = NULL;
++
++	yaffs_VerifyDirectory(parent);
+ }
+ 
+ 
+-static void yaffs_AddObjectToDirectory(yaffs_Object * directory,
+-				       yaffs_Object * obj)
++static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
++					yaffs_Object *obj)
+ {
+-
+ 	if (!directory) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+ 		   ("tragedy: Trying to add an object to a null pointer directory"
+ 		    TENDSTR)));
+ 		YBUG();
++		return;
+ 	}
+ 	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 		T(YAFFS_TRACE_ALWAYS,
+@@ -6631,37 +6709,42 @@ static void yaffs_AddObjectToDirectory(y
+ 
+ 	if (obj->siblings.prev == NULL) {
+ 		/* Not initialised */
+-		INIT_LIST_HEAD(&obj->siblings);
+-
+-	} else if (!list_empty(&obj->siblings)) {
+-		/* If it is holed up somewhere else, un hook it */
+-		yaffs_RemoveObjectFromDirectory(obj);
++		YBUG();
+ 	}
++
++
++	yaffs_VerifyDirectory(directory);
++
++	yaffs_RemoveObjectFromDirectory(obj);
++
++
+ 	/* Now add it */
+-	list_add(&obj->siblings, &directory->variant.directoryVariant.children);
++	ylist_add(&obj->siblings, &directory->variant.directoryVariant.children);
+ 	obj->parent = directory;
+ 
+ 	if (directory == obj->myDev->unlinkedDir
+-	    || directory == obj->myDev->deletedDir) {
++			|| directory == obj->myDev->deletedDir) {
+ 		obj->unlinked = 1;
+ 		obj->myDev->nUnlinkedFiles++;
+ 		obj->renameAllowed = 0;
+ 	}
++
++	yaffs_VerifyDirectory(directory);
++	yaffs_VerifyObjectInDirectory(obj);
+ }
+ 
+-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory,
+-				     const YCHAR * name)
++yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory,
++				     const YCHAR *name)
+ {
+ 	int sum;
+ 
+-	struct list_head *i;
++	struct ylist_head *i;
+ 	YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1];
+ 
+ 	yaffs_Object *l;
+ 
+-	if (!name) {
++	if (!name)
+ 		return NULL;
+-	}
+ 
+ 	if (!directory) {
+ 		T(YAFFS_TRACE_ALWAYS,
+@@ -6669,6 +6752,7 @@ yaffs_Object *yaffs_FindObjectByName(yaf
+ 		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
+ 		    TENDSTR)));
+ 		YBUG();
++		return NULL;
+ 	}
+ 	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 		T(YAFFS_TRACE_ALWAYS,
+@@ -6679,28 +6763,27 @@ yaffs_Object *yaffs_FindObjectByName(yaf
+ 
+ 	sum = yaffs_CalcNameSum(name);
+ 
+-	list_for_each(i, &directory->variant.directoryVariant.children) {
++	ylist_for_each(i, &directory->variant.directoryVariant.children) {
+ 		if (i) {
+-			l = list_entry(i, yaffs_Object, siblings);
++			l = ylist_entry(i, yaffs_Object, siblings);
++
++			if (l->parent != directory)
++				YBUG();
+ 
+ 			yaffs_CheckObjectDetailsLoaded(l);
+ 
+ 			/* Special case for lost-n-found */
+ 			if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
+-				if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) {
++				if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0)
+ 					return l;
+-				}
+-			} else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0)
+-			{
+-				/* LostnFound cunk called Objxxx
++			} else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) {
++				/* LostnFound chunk called Objxxx
+ 				 * Do a real check
+ 				 */
+ 				yaffs_GetObjectName(l, buffer,
+ 						    YAFFS_MAX_NAME_LENGTH);
+-				if (yaffs_strncmp(name, buffer,YAFFS_MAX_NAME_LENGTH) == 0) {
++				if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0)
+ 					return l;
+-				}
+-
+ 			}
+ 		}
+ 	}
+@@ -6710,10 +6793,10 @@ yaffs_Object *yaffs_FindObjectByName(yaf
+ 
+ 
+ #if 0
+-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir,
+-				   int (*fn) (yaffs_Object *))
++int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir,
++					int (*fn) (yaffs_Object *))
+ {
+-	struct list_head *i;
++	struct ylist_head *i;
+ 	yaffs_Object *l;
+ 
+ 	if (!theDir) {
+@@ -6722,20 +6805,21 @@ int yaffs_ApplyToDirectoryChildren(yaffs
+ 		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
+ 		    TENDSTR)));
+ 		YBUG();
++		return YAFFS_FAIL;
+ 	}
+ 	if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+ 		   ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR)));
+ 		YBUG();
++		return YAFFS_FAIL;
+ 	}
+ 
+-	list_for_each(i, &theDir->variant.directoryVariant.children) {
++	ylist_for_each(i, &theDir->variant.directoryVariant.children) {
+ 		if (i) {
+-			l = list_entry(i, yaffs_Object, siblings);
+-			if (l && !fn(l)) {
++			l = ylist_entry(i, yaffs_Object, siblings);
++			if (l && !fn(l))
+ 				return YAFFS_FAIL;
+-			}
+ 		}
+ 	}
+ 
+@@ -6748,7 +6832,7 @@ int yaffs_ApplyToDirectoryChildren(yaffs
+  * actual object.
+  */
+ 
+-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj)
++yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj)
+ {
+ 	if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
+ 		/* We want the object id of the equivalent object, not this one */
+@@ -6756,10 +6840,9 @@ yaffs_Object *yaffs_GetEquivalentObject(
+ 		yaffs_CheckObjectDetailsLoaded(obj);
+ 	}
+ 	return obj;
+-
+ }
+ 
+-int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize)
++int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize)
+ {
+ 	memset(name, 0, buffSize * sizeof(YCHAR));
+ 
+@@ -6767,18 +6850,26 @@ int yaffs_GetObjectName(yaffs_Object * o
+ 
+ 	if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
+ 		yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1);
+-	} else if (obj->chunkId <= 0) {
++	} else if (obj->hdrChunk <= 0) {
+ 		YCHAR locName[20];
++		YCHAR numString[20];
++		YCHAR *x = &numString[19];
++		unsigned v = obj->objectId;
++		numString[19] = 0;
++		while (v > 0) {
++			x--;
++			*x = '0' + (v % 10);
++			v /= 10;
++		}
+ 		/* make up a name */
+-		yaffs_sprintf(locName, _Y("%s%d"), YAFFS_LOSTNFOUND_PREFIX,
+-			      obj->objectId);
++		yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX);
++		yaffs_strcat(locName, x);
+ 		yaffs_strncpy(name, locName, buffSize - 1);
+ 
+ 	}
+ #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+-	else if (obj->shortName[0]) {
++	else if (obj->shortName[0])
+ 		yaffs_strcpy(name, obj->shortName);
+-	}
+ #endif
+ 	else {
+ 		int result;
+@@ -6788,9 +6879,9 @@ int yaffs_GetObjectName(yaffs_Object * o
+ 
+ 		memset(buffer, 0, obj->myDev->nDataBytesPerChunk);
+ 
+-		if (obj->chunkId >= 0) {
++		if (obj->hdrChunk > 0) {
+ 			result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev,
+-							obj->chunkId, buffer,
++							obj->hdrChunk, buffer,
+ 							NULL);
+ 		}
+ 		yaffs_strncpy(name, oh->name, buffSize - 1);
+@@ -6801,46 +6892,43 @@ int yaffs_GetObjectName(yaffs_Object * o
+ 	return yaffs_strlen(name);
+ }
+ 
+-int yaffs_GetObjectFileLength(yaffs_Object * obj)
++int yaffs_GetObjectFileLength(yaffs_Object *obj)
+ {
+-
+ 	/* Dereference any hard linking */
+ 	obj = yaffs_GetEquivalentObject(obj);
+ 
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
++	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+ 		return obj->variant.fileVariant.fileSize;
+-	}
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
++	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK)
+ 		return yaffs_strlen(obj->variant.symLinkVariant.alias);
+-	} else {
++	else {
+ 		/* Only a directory should drop through to here */
+ 		return obj->myDev->nDataBytesPerChunk;
+ 	}
+ }
+ 
+-int yaffs_GetObjectLinkCount(yaffs_Object * obj)
++int yaffs_GetObjectLinkCount(yaffs_Object *obj)
+ {
+ 	int count = 0;
+-	struct list_head *i;
++	struct ylist_head *i;
+ 
+-	if (!obj->unlinked) {
+-		count++;	/* the object itself */
+-	}
+-	list_for_each(i, &obj->hardLinks) {
+-		count++;	/* add the hard links; */
+-	}
+-	return count;
++	if (!obj->unlinked)
++		count++;		/* the object itself */
++
++	ylist_for_each(i, &obj->hardLinks)
++		count++;		/* add the hard links; */
+ 
++	return count;
+ }
+ 
+-int yaffs_GetObjectInode(yaffs_Object * obj)
++int yaffs_GetObjectInode(yaffs_Object *obj)
+ {
+ 	obj = yaffs_GetEquivalentObject(obj);
+ 
+ 	return obj->objectId;
+ }
+ 
+-unsigned yaffs_GetObjectType(yaffs_Object * obj)
++unsigned yaffs_GetObjectType(yaffs_Object *obj)
+ {
+ 	obj = yaffs_GetEquivalentObject(obj);
+ 
+@@ -6872,19 +6960,18 @@ unsigned yaffs_GetObjectType(yaffs_Objec
+ 	}
+ }
+ 
+-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj)
++YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj)
+ {
+ 	obj = yaffs_GetEquivalentObject(obj);
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
++	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK)
+ 		return yaffs_CloneString(obj->variant.symLinkVariant.alias);
+-	} else {
++	else
+ 		return yaffs_CloneString(_Y(""));
+-	}
+ }
+ 
+ #ifndef CONFIG_YAFFS_WINCE
+ 
+-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr)
++int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr)
+ {
+ 	unsigned int valid = attr->ia_valid;
+ 
+@@ -6910,7 +6997,7 @@ int yaffs_SetAttributes(yaffs_Object * o
+ 	return YAFFS_OK;
+ 
+ }
+-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr)
++int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr)
+ {
+ 	unsigned int valid = 0;
+ 
+@@ -6934,13 +7021,12 @@ int yaffs_GetAttributes(yaffs_Object * o
+ 	attr->ia_valid = valid;
+ 
+ 	return YAFFS_OK;
+-
+ }
+ 
+ #endif
+ 
+ #if 0
+-int yaffs_DumpObject(yaffs_Object * obj)
++int yaffs_DumpObject(yaffs_Object *obj)
+ {
+ 	YCHAR name[257];
+ 
+@@ -6951,7 +7037,7 @@ int yaffs_DumpObject(yaffs_Object * obj)
+ 	   ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d"
+ 	    " chunk %d type %d size %d\n"
+ 	    TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name,
+-	   obj->dirty, obj->valid, obj->serial, obj->sum, obj->chunkId,
++	   obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk,
+ 	   yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj)));
+ 
+ 	return YAFFS_OK;
+@@ -6960,7 +7046,7 @@ int yaffs_DumpObject(yaffs_Object * obj)
+ 
+ /*---------------------------- Initialisation code -------------------------------------- */
+ 
+-static int yaffs_CheckDevFunctions(const yaffs_Device * dev)
++static int yaffs_CheckDevFunctions(const yaffs_Device *dev)
+ {
+ 
+ 	/* Common functions, gotta have */
+@@ -7011,7 +7097,7 @@ static int yaffs_CreateInitialDirectorie
+ 	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND,
+ 				      YAFFS_LOSTNFOUND_MODE | S_IFDIR);
+ 
+-	if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){
++	if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) {
+ 		yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir);
+ 		return YAFFS_OK;
+ 	}
+@@ -7019,7 +7105,7 @@ static int yaffs_CreateInitialDirectorie
+ 	return YAFFS_FAIL;
+ }
+ 
+-int yaffs_GutsInitialise(yaffs_Device * dev)
++int yaffs_GutsInitialise(yaffs_Device *dev)
+ {
+ 	int init_failed = 0;
+ 	unsigned x;
+@@ -7040,6 +7126,8 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 	dev->chunkOffset = 0;
+ 	dev->nFreeChunks = 0;
+ 
++	dev->gcBlock = -1;
++
+ 	if (dev->startBlock == 0) {
+ 		dev->internalStartBlock = dev->startBlock + 1;
+ 		dev->internalEndBlock = dev->endBlock + 1;
+@@ -7049,18 +7137,18 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 
+ 	/* Check geometry parameters. */
+ 
+-	if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) ||
+-	    (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) ||
++	if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) ||
++	    (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) ||
++	    (dev->inbandTags && !dev->isYaffs2) ||
+ 	     dev->nChunksPerBlock < 2 ||
+ 	     dev->nReservedBlocks < 2 ||
+ 	     dev->internalStartBlock <= 0 ||
+ 	     dev->internalEndBlock <= 0 ||
+-	     dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)	// otherwise it is too small
+-	    ) {
++	     dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) {	/* otherwise it is too small */
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+-		   ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s "
+-		    TENDSTR), dev->nDataBytesPerChunk, dev->isYaffs2 ? "2" : ""));
++		   ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d "
++		    TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags));
+ 		return YAFFS_FAIL;
+ 	}
+ 
+@@ -7070,6 +7158,12 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 		return YAFFS_FAIL;
+ 	}
+ 
++	/* Sort out space for inband tags, if required */
++	if (dev->inbandTags)
++		dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart);
++	else
++		dev->nDataBytesPerChunk = dev->totalBytesPerChunk;
++
+ 	/* Got the right mix of functions? */
+ 	if (!yaffs_CheckDevFunctions(dev)) {
+ 		/* Function missing */
+@@ -7097,31 +7191,18 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 
+ 	dev->isMounted = 1;
+ 
+-
+-
+ 	/* OK now calculate a few things for the device */
+ 
+ 	/*
+ 	 *  Calculate all the chunk size manipulation numbers:
+ 	 */
+-	 /* Start off assuming it is a power of 2 */
+-	 dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk);
+-	 dev->chunkMask = (1<<dev->chunkShift) - 1;
+-
+-	 if(dev->nDataBytesPerChunk == (dev->chunkMask + 1)){
+-	 	/* Yes it is a power of 2, disable crumbs */
+-		dev->crumbMask = 0;
+-		dev->crumbShift = 0;
+-		dev->crumbsPerChunk = 0;
+-	 } else {
+-	 	/* Not a power of 2, use crumbs instead */
+-		dev->crumbShift = ShiftDiv(sizeof(yaffs_PackedTags2TagsPart));
+-		dev->crumbMask = (1<<dev->crumbShift)-1;
+-		dev->crumbsPerChunk = dev->nDataBytesPerChunk/(1 << dev->crumbShift);
+-		dev->chunkShift = 0;
+-		dev->chunkMask = 0;
+-	}
+-
++	x = dev->nDataBytesPerChunk;
++	/* We always use dev->chunkShift and dev->chunkDiv */
++	dev->chunkShift = Shifts(x);
++	x >>= dev->chunkShift;
++	dev->chunkDiv = x;
++	/* We only use chunk mask if chunkDiv is 1 */
++	dev->chunkMask = (1<<dev->chunkShift) - 1;
+ 
+ 	/*
+ 	 * Calculate chunkGroupBits.
+@@ -7133,16 +7214,15 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 	bits = ShiftsGE(x);
+ 
+ 	/* Set up tnode width if wide tnodes are enabled. */
+-	if(!dev->wideTnodesDisabled){
++	if (!dev->wideTnodesDisabled) {
+ 		/* bits must be even so that we end up with 32-bit words */
+-		if(bits & 1)
++		if (bits & 1)
+ 			bits++;
+-		if(bits < 16)
++		if (bits < 16)
+ 			dev->tnodeWidth = 16;
+ 		else
+ 			dev->tnodeWidth = bits;
+-	}
+-	else
++	} else
+ 		dev->tnodeWidth = 16;
+ 
+ 	dev->tnodeMask = (1<<dev->tnodeWidth)-1;
+@@ -7193,7 +7273,7 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 	dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */
+ 
+ 	/* Initialise temporary buffers and caches. */
+-	if(!yaffs_InitialiseTempBuffers(dev))
++	if (!yaffs_InitialiseTempBuffers(dev))
+ 		init_failed = 1;
+ 
+ 	dev->srCache = NULL;
+@@ -7203,25 +7283,26 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 	if (!init_failed &&
+ 	    dev->nShortOpCaches > 0) {
+ 		int i;
+-		__u8 *buf;
++		void *buf;
+ 		int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache);
+ 
+-		if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) {
++		if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES)
+ 			dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES;
+-		}
+ 
+-		buf = dev->srCache =  YMALLOC(srCacheBytes);
++		dev->srCache =  YMALLOC(srCacheBytes);
+ 
+-		if(dev->srCache)
+-			memset(dev->srCache,0,srCacheBytes);
++		buf = (__u8 *) dev->srCache;
++
++		if (dev->srCache)
++			memset(dev->srCache, 0, srCacheBytes);
+ 
+ 		for (i = 0; i < dev->nShortOpCaches && buf; i++) {
+ 			dev->srCache[i].object = NULL;
+ 			dev->srCache[i].lastUse = 0;
+ 			dev->srCache[i].dirty = 0;
+-			dev->srCache[i].data = buf = YMALLOC_DMA(dev->nDataBytesPerChunk);
++			dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk);
+ 		}
+-		if(!buf)
++		if (!buf)
+ 			init_failed = 1;
+ 
+ 		dev->srLastUse = 0;
+@@ -7229,29 +7310,30 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 
+ 	dev->cacheHits = 0;
+ 
+-	if(!init_failed){
++	if (!init_failed) {
+ 		dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32));
+-		if(!dev->gcCleanupList)
++		if (!dev->gcCleanupList)
+ 			init_failed = 1;
+ 	}
+ 
+-	if (dev->isYaffs2) {
++	if (dev->isYaffs2)
+ 		dev->useHeaderFileSize = 1;
+-	}
+-	if(!init_failed && !yaffs_InitialiseBlocks(dev))
++
++	if (!init_failed && !yaffs_InitialiseBlocks(dev))
+ 		init_failed = 1;
+ 
+ 	yaffs_InitialiseTnodes(dev);
+ 	yaffs_InitialiseObjects(dev);
+ 
+-	if(!init_failed && !yaffs_CreateInitialDirectories(dev))
++	if (!init_failed && !yaffs_CreateInitialDirectories(dev))
+ 		init_failed = 1;
+ 
+ 
+-	if(!init_failed){
++	if (!init_failed) {
+ 		/* Now scan the flash. */
+ 		if (dev->isYaffs2) {
+-			if(yaffs_CheckpointRestore(dev)) {
++			if (yaffs_CheckpointRestore(dev)) {
++				yaffs_CheckObjectDetailsLoaded(dev->rootDir);
+ 				T(YAFFS_TRACE_ALWAYS,
+ 				  (TSTR("yaffs: restored from checkpoint" TENDSTR)));
+ 			} else {
+@@ -7273,24 +7355,25 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 				dev->nBackgroundDeletions = 0;
+ 				dev->oldestDirtySequence = 0;
+ 
+-				if(!init_failed && !yaffs_InitialiseBlocks(dev))
++				if (!init_failed && !yaffs_InitialiseBlocks(dev))
+ 					init_failed = 1;
+ 
+ 				yaffs_InitialiseTnodes(dev);
+ 				yaffs_InitialiseObjects(dev);
+ 
+-				if(!init_failed && !yaffs_CreateInitialDirectories(dev))
++				if (!init_failed && !yaffs_CreateInitialDirectories(dev))
+ 					init_failed = 1;
+ 
+-				if(!init_failed && !yaffs_ScanBackwards(dev))
++				if (!init_failed && !yaffs_ScanBackwards(dev))
+ 					init_failed = 1;
+ 			}
+-		}else
+-			if(!yaffs_Scan(dev))
++		} else if (!yaffs_Scan(dev))
+ 				init_failed = 1;
++
++		yaffs_StripDeletedObjects(dev);
+ 	}
+ 
+-	if(init_failed){
++	if (init_failed) {
+ 		/* Clean up the mess */
+ 		T(YAFFS_TRACE_TRACING,
+ 		  (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR)));
+@@ -7318,7 +7401,7 @@ int yaffs_GutsInitialise(yaffs_Device *
+ 
+ }
+ 
+-void yaffs_Deinitialise(yaffs_Device * dev)
++void yaffs_Deinitialise(yaffs_Device *dev)
+ {
+ 	if (dev->isMounted) {
+ 		int i;
+@@ -7330,7 +7413,7 @@ void yaffs_Deinitialise(yaffs_Device * d
+ 		    dev->srCache) {
+ 
+ 			for (i = 0; i < dev->nShortOpCaches; i++) {
+-				if(dev->srCache[i].data)
++				if (dev->srCache[i].data)
+ 					YFREE(dev->srCache[i].data);
+ 				dev->srCache[i].data = NULL;
+ 			}
+@@ -7341,16 +7424,17 @@ void yaffs_Deinitialise(yaffs_Device * d
+ 
+ 		YFREE(dev->gcCleanupList);
+ 
+-		for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
++		for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++)
+ 			YFREE(dev->tempBuffer[i].buffer);
+-		}
+ 
+ 		dev->isMounted = 0;
+-	}
+ 
++		if (dev->deinitialiseNAND)
++			dev->deinitialiseNAND(dev);
++	}
+ }
+ 
+-static int yaffs_CountFreeChunks(yaffs_Device * dev)
++static int yaffs_CountFreeChunks(yaffs_Device *dev)
+ {
+ 	int nFree;
+ 	int b;
+@@ -7358,7 +7442,7 @@ static int yaffs_CountFreeChunks(yaffs_D
+ 	yaffs_BlockInfo *blk;
+ 
+ 	for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock;
+-	     b++) {
++			b++) {
+ 		blk = yaffs_GetBlockInfo(dev, b);
+ 
+ 		switch (blk->blockState) {
+@@ -7373,19 +7457,19 @@ static int yaffs_CountFreeChunks(yaffs_D
+ 		default:
+ 			break;
+ 		}
+-
+ 	}
+ 
+ 	return nFree;
+ }
+ 
+-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev)
++int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev)
+ {
+ 	/* This is what we report to the outside world */
+ 
+ 	int nFree;
+ 	int nDirtyCacheChunks;
+ 	int blocksForCheckpoint;
++	int i;
+ 
+ #if 1
+ 	nFree = dev->nFreeChunks;
+@@ -7397,12 +7481,9 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De
+ 
+ 	/* Now count the number of dirty chunks in the cache and subtract those */
+ 
+-	{
+-		int i;
+-		for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) {
+-			if (dev->srCache[i].dirty)
+-				nDirtyCacheChunks++;
+-		}
++	for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) {
++		if (dev->srCache[i].dirty)
++			nDirtyCacheChunks++;
+ 	}
+ 
+ 	nFree -= nDirtyCacheChunks;
+@@ -7410,8 +7491,8 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De
+ 	nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock);
+ 
+ 	/* Now we figure out how much to reserve for the checkpoint and report that... */
+-	blocksForCheckpoint = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint;
+-	if(blocksForCheckpoint < 0)
++	blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
++	if (blocksForCheckpoint < 0)
+ 		blocksForCheckpoint = 0;
+ 
+ 	nFree -= (blocksForCheckpoint * dev->nChunksPerBlock);
+@@ -7425,12 +7506,12 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De
+ 
+ static int yaffs_freeVerificationFailures;
+ 
+-static void yaffs_VerifyFreeChunks(yaffs_Device * dev)
++static void yaffs_VerifyFreeChunks(yaffs_Device *dev)
+ {
+ 	int counted;
+ 	int difference;
+ 
+-	if(yaffs_SkipVerification(dev))
++	if (yaffs_SkipVerification(dev))
+ 		return;
+ 
+ 	counted = yaffs_CountFreeChunks(dev);
+@@ -7447,23 +7528,25 @@ static void yaffs_VerifyFreeChunks(yaffs
+ 
+ /*---------------------------------------- YAFFS test code ----------------------*/
+ 
+-#define yaffs_CheckStruct(structure,syze, name) \
+-           if(sizeof(structure) != syze) \
+-	       { \
+-	         T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\
+-		 name,syze,sizeof(structure))); \
+-	         return YAFFS_FAIL; \
+-		}
++#define yaffs_CheckStruct(structure, syze, name) \
++	do { \
++		if (sizeof(structure) != syze) { \
++			T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\
++				name, syze, sizeof(structure))); \
++			return YAFFS_FAIL; \
++		} \
++	} while (0)
+ 
+ static int yaffs_CheckStructures(void)
+ {
+-/*      yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags") */
+-/*      yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion") */
+-/*      yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare") */
++/*      yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */
++/*      yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */
++/*      yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */
+ #ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG
+-	yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode")
++	yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode");
+ #endif
+-	    yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader")
+-
+-	    return YAFFS_OK;
++#ifndef CONFIG_YAFFS_WINCE
++	yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader");
++#endif
++	return YAFFS_OK;
+ }
+--- a/fs/yaffs2/yaffs_guts.h
++++ b/fs/yaffs2/yaffs_guts.h
+@@ -90,7 +90,7 @@
+ 
+ #define YAFFS_MAX_SHORT_OP_CACHES	20
+ 
+-#define YAFFS_N_TEMP_BUFFERS		4
++#define YAFFS_N_TEMP_BUFFERS		6
+ 
+ /* We limit the number attempts at sucessfully saving a chunk of data.
+  * Small-page devices have 32 pages per block; large-page devices have 64.
+@@ -108,6 +108,9 @@
+ #define YAFFS_LOWEST_SEQUENCE_NUMBER	0x00001000
+ #define YAFFS_HIGHEST_SEQUENCE_NUMBER	0xEFFFFF00
+ 
++/* Special sequence number for bad block that failed to be marked bad */
++#define YAFFS_SEQUENCE_BAD_BLOCK	0xFFFF0000
++
+ /* ChunkCache is used for short read/write operations.*/
+ typedef struct {
+ 	struct yaffs_ObjectStruct *object;
+@@ -134,11 +137,10 @@ typedef struct {
+ typedef struct {
+ 	unsigned chunkId:20;
+ 	unsigned serialNumber:2;
+-	unsigned byteCount:10;
++	unsigned byteCountLSB:10;
+ 	unsigned objectId:18;
+ 	unsigned ecc:12;
+-	unsigned unusedStuff:2;
+-
++	unsigned byteCountMSB:2;
+ } yaffs_Tags;
+ 
+ typedef union {
+@@ -277,13 +279,13 @@ typedef struct {
+ 
+ 	int softDeletions:10;	/* number of soft deleted pages */
+ 	int pagesInUse:10;	/* number of pages in use */
+-	yaffs_BlockState blockState:4;	/* One of the above block states */
++	unsigned blockState:4;	/* One of the above block states. NB use unsigned because enum is sometimes an int */
+ 	__u32 needsRetiring:1;	/* Data has failed on this block, need to get valid data off */
+-                        	/* and retire the block. */
+-	__u32 skipErasedCheck: 1; /* If this is set we can skip the erased check on this block */
+-	__u32 gcPrioritise: 1; 	/* An ECC check or blank check has failed on this block.
++				/* and retire the block. */
++	__u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */
++	__u32 gcPrioritise:1; 	/* An ECC check or blank check has failed on this block.
+ 				   It should be prioritised for GC */
+-        __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */
++	__u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */
+ 
+ #ifdef CONFIG_YAFFS_YAFFS2
+ 	__u32 hasShrinkHeader:1; /* This block has at least one shrink object header */
+@@ -300,11 +302,11 @@ typedef struct {
+ 
+ 	/* Apply to everything  */
+ 	int parentObjectId;
+-	__u16 sum__NoLongerUsed;	/* checksum of name. No longer used */
++	__u16 sum__NoLongerUsed;        /* checksum of name. No longer used */
+ 	YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
+ 
+-	/* Thes following apply to directories, files, symlinks - not hard links */
+-	__u32 yst_mode;		/* protection */
++	/* The following apply to directories, files, symlinks - not hard links */
++	__u32 yst_mode;         /* protection */
+ 
+ #ifdef CONFIG_YAFFS_WINCE
+ 	__u32 notForWinCE[5];
+@@ -331,11 +333,14 @@ typedef struct {
+ 	__u32 win_ctime[2];
+ 	__u32 win_atime[2];
+ 	__u32 win_mtime[2];
+-	__u32 roomToGrow[4];
+ #else
+-	__u32 roomToGrow[10];
++	__u32 roomToGrow[6];
++
+ #endif
++	__u32 inbandShadowsObject;
++	__u32 inbandIsShrink;
+ 
++	__u32 reservedSpace[2];
+ 	int shadowsObject;	/* This object header shadows the specified object if > 0 */
+ 
+ 	/* isShrink applies to object headers written when we shrink the file (ie resize) */
+@@ -381,7 +386,7 @@ typedef struct {
+ } yaffs_FileStructure;
+ 
+ typedef struct {
+-	struct list_head children;	/* list of child links */
++	struct ylist_head children;     /* list of child links */
+ } yaffs_DirectoryStructure;
+ 
+ typedef struct {
+@@ -418,23 +423,24 @@ struct yaffs_ObjectStruct {
+ 				 * still in the inode cache. Free of object is defered.
+ 				 * until the inode is released.
+ 				 */
++	__u8 beingCreated:1;	/* This object is still being created so skip some checks. */
+ 
+ 	__u8 serial;		/* serial number of chunk in NAND. Cached here */
+ 	__u16 sum;		/* sum of the name to speed searching */
+ 
+-	struct yaffs_DeviceStruct *myDev;	/* The device I'm on */
++	struct yaffs_DeviceStruct *myDev;       /* The device I'm on */
+ 
+-	struct list_head hashLink;	/* list of objects in this hash bucket */
++	struct ylist_head hashLink;     /* list of objects in this hash bucket */
+ 
+-	struct list_head hardLinks;	/* all the equivalent hard linked objects */
++	struct ylist_head hardLinks;    /* all the equivalent hard linked objects */
+ 
+ 	/* directory structure stuff */
+ 	/* also used for linking up the free list */
+ 	struct yaffs_ObjectStruct *parent;
+-	struct list_head siblings;
++	struct ylist_head siblings;
+ 
+ 	/* Where's my object header in NAND? */
+-	int chunkId;
++	int hdrChunk;
+ 
+ 	int nDataChunks;	/* Number of data chunks attached to the file. */
+ 
+@@ -485,7 +491,7 @@ struct yaffs_ObjectList_struct {
+ typedef struct yaffs_ObjectList_struct yaffs_ObjectList;
+ 
+ typedef struct {
+-	struct list_head list;
++	struct ylist_head list;
+ 	int count;
+ } yaffs_ObjectBucket;
+ 
+@@ -495,11 +501,10 @@ typedef struct {
+  */
+ 
+ typedef struct {
+-        int structType;
++	int structType;
+ 	__u32 objectId;
+ 	__u32 parentId;
+-	int chunkId;
+-
++	int hdrChunk;
+ 	yaffs_ObjectType variantType:3;
+ 	__u8 deleted:1;
+ 	__u8 softDeleted:1;
+@@ -511,8 +516,7 @@ typedef struct {
+ 
+ 	int nDataChunks;
+ 	__u32 fileSizeOrEquivalentObjectId;
+-
+-}yaffs_CheckpointObject;
++} yaffs_CheckpointObject;
+ 
+ /*--------------------- Temporary buffers ----------------
+  *
+@@ -528,13 +532,13 @@ typedef struct {
+ /*----------------- Device ---------------------------------*/
+ 
+ struct yaffs_DeviceStruct {
+-	struct list_head devList;
++	struct ylist_head devList;
+ 	const char *name;
+ 
+ 	/* Entry parameters set up way early. Yaffs sets up the rest.*/
+ 	int nDataBytesPerChunk;	/* Should be a power of 2 >= 512 */
+ 	int nChunksPerBlock;	/* does not need to be a power of 2 */
+-	int nBytesPerSpare;	/* spare area size */
++	int spareBytesPerChunk;	/* spare area size */
+ 	int startBlock;		/* Start block we're allowed to use */
+ 	int endBlock;		/* End block we're allowed to use */
+ 	int nReservedBlocks;	/* We want this tuneable so that we can reduce */
+@@ -544,9 +548,7 @@ struct yaffs_DeviceStruct {
+ 	/* Stuff used by the shared space checkpointing mechanism */
+ 	/* If this value is zero, then this mechanism is disabled */
+ 
+-	int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */
+-
+-
++/*	int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */
+ 
+ 
+ 	int nShortOpCaches;	/* If <= 0, then short op caching is disabled, else
+@@ -560,30 +562,31 @@ struct yaffs_DeviceStruct {
+ 	void *genericDevice;	/* Pointer to device context
+ 				 * On an mtd this holds the mtd pointer.
+ 				 */
+-        void *superBlock;
++	void *superBlock;
+ 
+ 	/* NAND access functions (Must be set before calling YAFFS)*/
+ 
+-	int (*writeChunkToNAND) (struct yaffs_DeviceStruct * dev,
+-				 int chunkInNAND, const __u8 * data,
+-				 const yaffs_Spare * spare);
+-	int (*readChunkFromNAND) (struct yaffs_DeviceStruct * dev,
+-				  int chunkInNAND, __u8 * data,
+-				  yaffs_Spare * spare);
+-	int (*eraseBlockInNAND) (struct yaffs_DeviceStruct * dev,
+-				 int blockInNAND);
+-	int (*initialiseNAND) (struct yaffs_DeviceStruct * dev);
++	int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev,
++					int chunkInNAND, const __u8 *data,
++					const yaffs_Spare *spare);
++	int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev,
++					int chunkInNAND, __u8 *data,
++					yaffs_Spare *spare);
++	int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev,
++					int blockInNAND);
++	int (*initialiseNAND) (struct yaffs_DeviceStruct *dev);
++	int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev);
+ 
+ #ifdef CONFIG_YAFFS_YAFFS2
+-	int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct * dev,
+-					 int chunkInNAND, const __u8 * data,
+-					 const yaffs_ExtendedTags * tags);
+-	int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct * dev,
+-					  int chunkInNAND, __u8 * data,
+-					  yaffs_ExtendedTags * tags);
+-	int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo);
+-	int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo,
+-			       yaffs_BlockState * state, int *sequenceNumber);
++	int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev,
++					 int chunkInNAND, const __u8 *data,
++					 const yaffs_ExtendedTags *tags);
++	int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev,
++					  int chunkInNAND, __u8 *data,
++					  yaffs_ExtendedTags *tags);
++	int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo);
++	int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo,
++			       yaffs_BlockState *state, __u32 *sequenceNumber);
+ #endif
+ 
+ 	int isYaffs2;
+@@ -595,10 +598,12 @@ struct yaffs_DeviceStruct {
+ 	void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj);
+ 
+ 	/* Callback to mark the superblock dirsty */
+-	void (*markSuperBlockDirty)(void * superblock);
++	void (*markSuperBlockDirty)(void *superblock);
+ 
+ 	int wideTnodesDisabled; /* Set to disable wide tnodes */
+ 
++	YCHAR *pathDividers;	/* String of legal path dividers */
++
+ 
+ 	/* End of stuff that must be set before initialisation. */
+ 
+@@ -615,16 +620,14 @@ struct yaffs_DeviceStruct {
+ 	__u32 tnodeWidth;
+ 	__u32 tnodeMask;
+ 
+-	/* Stuff to support various file offses to chunk/offset translations */
+-	/* "Crumbs" for nDataBytesPerChunk not being a power of 2 */
+-	__u32 crumbMask;
+-	__u32 crumbShift;
+-	__u32 crumbsPerChunk;
+-
+-	/* Straight shifting for nDataBytesPerChunk being a power of 2 */
+-	__u32 chunkShift;
+-	__u32 chunkMask;
+-
++	/* Stuff for figuring out file offset to chunk conversions */
++	__u32 chunkShift; /* Shift value */
++	__u32 chunkDiv;   /* Divisor after shifting: 1 for power-of-2 sizes */
++	__u32 chunkMask;  /* Mask to use for power-of-2 case */
++
++	/* Stuff to handle inband tags */
++	int inbandTags;
++	__u32 totalBytesPerChunk;
+ 
+ #ifdef __KERNEL__
+ 
+@@ -633,7 +636,7 @@ struct yaffs_DeviceStruct {
+ 	__u8 *spareBuffer;	/* For mtdif2 use. Don't know the size of the buffer
+ 				 * at compile time so we have to allocate it.
+ 				 */
+-	void (*putSuperFunc) (struct super_block * sb);
++	void (*putSuperFunc) (struct super_block *sb);
+ #endif
+ 
+ 	int isMounted;
+@@ -663,6 +666,8 @@ struct yaffs_DeviceStruct {
+ 	__u32 checkpointSum;
+ 	__u32 checkpointXor;
+ 
++	int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */
++
+ 	/* Block Info */
+ 	yaffs_BlockInfo *blockInfo;
+ 	__u8 *chunkBits;	/* bitmap of chunks in use */
+@@ -684,11 +689,15 @@ struct yaffs_DeviceStruct {
+ 	yaffs_TnodeList *allocatedTnodeList;
+ 
+ 	int isDoingGC;
++	int gcBlock;
++	int gcChunk;
+ 
+ 	int nObjectsCreated;
+ 	yaffs_Object *freeObjects;
+ 	int nFreeObjects;
+ 
++	int nHardLinks;
++
+ 	yaffs_ObjectList *allocatedObjectList;
+ 
+ 	yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS];
+@@ -745,8 +754,10 @@ struct yaffs_DeviceStruct {
+ 	int nBackgroundDeletions;	/* Count of background deletions. */
+ 
+ 
++	/* Temporary buffer management */
+ 	yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS];
+ 	int maxTemp;
++	int tempInUse;
+ 	int unmanagedTempAllocations;
+ 	int unmanagedTempDeallocations;
+ 
+@@ -758,9 +769,9 @@ struct yaffs_DeviceStruct {
+ 
+ typedef struct yaffs_DeviceStruct yaffs_Device;
+ 
+-/* The static layout of bllock usage etc is stored in the super block header */
++/* The static layout of block usage etc is stored in the super block header */
+ typedef struct {
+-        int StructType;
++	int StructType;
+ 	int version;
+ 	int checkpointStartBlock;
+ 	int checkpointEndBlock;
+@@ -773,7 +784,7 @@ typedef struct {
+  * must be preserved over unmount/mount cycles.
+  */
+ typedef struct {
+-        int structType;
++	int structType;
+ 	int nErasedBlocks;
+ 	int allocationBlock;	/* Current block being allocated off */
+ 	__u32 allocationPage;
+@@ -791,57 +802,45 @@ typedef struct {
+ 
+ 
+ typedef struct {
+-    int structType;
+-    __u32 magic;
+-    __u32 version;
+-    __u32 head;
++	int structType;
++	__u32 magic;
++	__u32 version;
++	__u32 head;
+ } yaffs_CheckpointValidity;
+ 
+-/* Function to manipulate block info */
+-static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk)
+-{
+-	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
+-		T(YAFFS_TRACE_ERROR,
+-		  (TSTR
+-		   ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR),
+-		   blk));
+-		YBUG();
+-	}
+-	return &dev->blockInfo[blk - dev->internalStartBlock];
+-}
+ 
+ /*----------------------- YAFFS Functions -----------------------*/
+ 
+-int yaffs_GutsInitialise(yaffs_Device * dev);
+-void yaffs_Deinitialise(yaffs_Device * dev);
++int yaffs_GutsInitialise(yaffs_Device *dev);
++void yaffs_Deinitialise(yaffs_Device *dev);
+ 
+-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev);
++int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev);
+ 
+-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
+-		       yaffs_Object * newDir, const YCHAR * newName);
++int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName,
++		       yaffs_Object *newDir, const YCHAR *newName);
+ 
+-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name);
+-int yaffs_DeleteFile(yaffs_Object * obj);
++int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name);
++int yaffs_DeleteObject(yaffs_Object *obj);
+ 
+-int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize);
+-int yaffs_GetObjectFileLength(yaffs_Object * obj);
+-int yaffs_GetObjectInode(yaffs_Object * obj);
+-unsigned yaffs_GetObjectType(yaffs_Object * obj);
+-int yaffs_GetObjectLinkCount(yaffs_Object * obj);
++int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize);
++int yaffs_GetObjectFileLength(yaffs_Object *obj);
++int yaffs_GetObjectInode(yaffs_Object *obj);
++unsigned yaffs_GetObjectType(yaffs_Object *obj);
++int yaffs_GetObjectLinkCount(yaffs_Object *obj);
+ 
+-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr);
+-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr);
++int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr);
++int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr);
+ 
+ /* File operations */
+-int yaffs_ReadDataFromFile(yaffs_Object * obj, __u8 * buffer, loff_t offset,
+-			   int nBytes);
+-int yaffs_WriteDataToFile(yaffs_Object * obj, const __u8 * buffer, loff_t offset,
+-			  int nBytes, int writeThrough);
+-int yaffs_ResizeFile(yaffs_Object * obj, loff_t newSize);
+-
+-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name,
+-			      __u32 mode, __u32 uid, __u32 gid);
+-int yaffs_FlushFile(yaffs_Object * obj, int updateTime);
++int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset,
++				int nBytes);
++int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset,
++				int nBytes, int writeThrough);
++int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize);
++
++yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid);
++int yaffs_FlushFile(yaffs_Object *obj, int updateTime);
+ 
+ /* Flushing and checkpointing */
+ void yaffs_FlushEntireDeviceCache(yaffs_Device *dev);
+@@ -850,33 +849,33 @@ int yaffs_CheckpointSave(yaffs_Device *d
+ int yaffs_CheckpointRestore(yaffs_Device *dev);
+ 
+ /* Directory operations */
+-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name,
+-				   __u32 mode, __u32 uid, __u32 gid);
+-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * theDir, const YCHAR * name);
+-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir,
++yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid);
++yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name);
++int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir,
+ 				   int (*fn) (yaffs_Object *));
+ 
+-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number);
++yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number);
+ 
+ /* Link operations */
+-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name,
+-			 yaffs_Object * equivalentObject);
++yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name,
++			 yaffs_Object *equivalentObject);
+ 
+-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj);
++yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj);
+ 
+ /* Symlink operations */
+-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name,
++yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name,
+ 				 __u32 mode, __u32 uid, __u32 gid,
+-				 const YCHAR * alias);
+-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj);
++				 const YCHAR *alias);
++YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj);
+ 
+ /* Special inodes (fifos, sockets and devices) */
+-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name,
++yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
+ 				 __u32 mode, __u32 uid, __u32 gid, __u32 rdev);
+ 
+ /* Special directories */
+-yaffs_Object *yaffs_Root(yaffs_Device * dev);
+-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev);
++yaffs_Object *yaffs_Root(yaffs_Device *dev);
++yaffs_Object *yaffs_LostNFound(yaffs_Device *dev);
+ 
+ #ifdef CONFIG_YAFFS_WINCE
+ /* CONFIG_YAFFS_WINCE special stuff */
+@@ -885,18 +884,21 @@ void yfsd_WinFileTimeNow(__u32 target[2]
+ 
+ #ifdef __KERNEL__
+ 
+-void yaffs_HandleDeferedFree(yaffs_Object * obj);
++void yaffs_HandleDeferedFree(yaffs_Object *obj);
+ #endif
+ 
+ /* Debug dump  */
+-int yaffs_DumpObject(yaffs_Object * obj);
++int yaffs_DumpObject(yaffs_Object *obj);
+ 
+-void yaffs_GutsTest(yaffs_Device * dev);
++void yaffs_GutsTest(yaffs_Device *dev);
+ 
+ /* A few useful functions */
+-void yaffs_InitialiseTags(yaffs_ExtendedTags * tags);
+-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn);
+-int yaffs_CheckFF(__u8 * buffer, int nBytes);
++void yaffs_InitialiseTags(yaffs_ExtendedTags *tags);
++void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn);
++int yaffs_CheckFF(__u8 *buffer, int nBytes);
+ void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi);
+ 
++__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo);
++void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo);
++
+ #endif
+--- a/fs/yaffs2/yaffs_mtdif1.c
++++ b/fs/yaffs2/yaffs_mtdif1.c
+@@ -26,7 +26,7 @@
+ #include "yportenv.h"
+ #include "yaffs_guts.h"
+ #include "yaffs_packedtags1.h"
+-#include "yaffs_tagscompat.h"	// for yaffs_CalcTagsECC
++#include "yaffs_tagscompat.h"	/* for yaffs_CalcTagsECC */
+ 
+ #include "linux/kernel.h"
+ #include "linux/version.h"
+@@ -34,9 +34,9 @@
+ #include "linux/mtd/mtd.h"
+ 
+ /* Don't compile this module if we don't have MTD's mtd_oob_ops interface */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 
+-const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.3 2007/05/15 20:16:11 ian Exp $";
++const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $";
+ 
+ #ifndef CONFIG_YAFFS_9BYTE_TAGS
+ # define YTAG1_SIZE 8
+@@ -89,9 +89,9 @@ static struct nand_ecclayout nand_oob_16
+  * Returns YAFFS_OK or YAFFS_FAIL.
+  */
+ int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
+-	int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags)
++	int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags)
+ {
+-	struct mtd_info * mtd = dev->genericDevice;
++	struct mtd_info *mtd = dev->genericDevice;
+ 	int chunkBytes = dev->nDataBytesPerChunk;
+ 	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
+ 	struct mtd_oob_ops ops;
+@@ -146,7 +146,7 @@ int nandmtd1_WriteChunkWithTagsToNAND(ya
+ 
+ /* Return with empty ExtendedTags but add eccResult.
+  */
+-static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval)
++static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval)
+ {
+ 	if (etags) {
+ 		memset(etags, 0, sizeof(*etags));
+@@ -169,9 +169,9 @@ static int rettags(yaffs_ExtendedTags *
+  * Returns YAFFS_OK or YAFFS_FAIL.
+  */
+ int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
+-	int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags)
++	int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags)
+ {
+-	struct mtd_info * mtd = dev->genericDevice;
++	struct mtd_info *mtd = dev->genericDevice;
+ 	int chunkBytes = dev->nDataBytesPerChunk;
+ 	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
+ 	int eccres = YAFFS_ECC_RESULT_NO_ERROR;
+@@ -189,7 +189,7 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y
+ 	ops.datbuf = data;
+ 	ops.oobbuf = (__u8 *)&pt1;
+ 
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 20))
+ 	/* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug;
+ 	 * help it out with ops.len = ops.ooblen when ops.datbuf == NULL.
+ 	 */
+@@ -284,11 +284,11 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y
+  */
+ int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
+ {
+-	struct mtd_info * mtd = dev->genericDevice;
++	struct mtd_info *mtd = dev->genericDevice;
+ 	int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk;
+ 	int retval;
+ 
+-	yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo);
++	yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo);
+ 
+ 	retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo);
+ 	return (retval) ? YAFFS_FAIL : YAFFS_OK;
+@@ -298,7 +298,7 @@ int nandmtd1_MarkNANDBlockBad(struct yaf
+  *
+  * Returns YAFFS_OK or YAFFS_FAIL.
+  */
+-static int nandmtd1_TestPrerequists(struct mtd_info * mtd)
++static int nandmtd1_TestPrerequists(struct mtd_info *mtd)
+ {
+ 	/* 2.6.18 has mtd->ecclayout->oobavail */
+ 	/* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */
+@@ -323,10 +323,11 @@ static int nandmtd1_TestPrerequists(stru
+  * Always returns YAFFS_OK.
+  */
+ int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-	yaffs_BlockState * pState, int *pSequenceNumber)
++	yaffs_BlockState *pState, __u32 *pSequenceNumber)
+ {
+-	struct mtd_info * mtd = dev->genericDevice;
++	struct mtd_info *mtd = dev->genericDevice;
+ 	int chunkNo = blockNo * dev->nChunksPerBlock;
++	loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk;
+ 	yaffs_ExtendedTags etags;
+ 	int state = YAFFS_BLOCK_STATE_DEAD;
+ 	int seqnum = 0;
+@@ -335,21 +336,22 @@ int nandmtd1_QueryNANDBlock(struct yaffs
+ 	/* We don't yet have a good place to test for MTD config prerequists.
+ 	 * Do it here as we are called during the initial scan.
+ 	 */
+-	if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) {
++	if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK)
+ 		return YAFFS_FAIL;
+-	}
+ 
+ 	retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags);
++	etags.blockBad = (mtd->block_isbad)(mtd, addr);
+ 	if (etags.blockBad) {
+ 		yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
+-			"block %d is marked bad", blockNo);
++			"block %d is marked bad\n", blockNo);
+ 		state = YAFFS_BLOCK_STATE_DEAD;
+-	}
+-	else if (etags.chunkUsed) {
++	} else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) {
++		/* bad tags, need to look more closely */
++		state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
++	} else if (etags.chunkUsed) {
+ 		state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
+ 		seqnum = etags.sequenceNumber;
+-	}
+-	else {
++	} else {
+ 		state = YAFFS_BLOCK_STATE_EMPTY;
+ 	}
+ 
+@@ -360,4 +362,4 @@ int nandmtd1_QueryNANDBlock(struct yaffs
+ 	return YAFFS_OK;
+ }
+ 
+-#endif /*KERNEL_VERSION*/
++#endif /*MTD_VERSION*/
+--- a/fs/yaffs2/yaffs_mtdif1.h
++++ b/fs/yaffs2/yaffs_mtdif1.h
+@@ -14,15 +14,15 @@
+ #ifndef __YAFFS_MTDIF1_H__
+ #define __YAFFS_MTDIF1_H__
+ 
+-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
+-	const __u8 * data, const yaffs_ExtendedTags * tags);
++int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
++	const __u8 *data, const yaffs_ExtendedTags *tags);
+ 
+-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
+-	__u8 * data, yaffs_ExtendedTags * tags);
++int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
++	__u8 *data, yaffs_ExtendedTags *tags);
+ 
+ int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
+ 
+ int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-	yaffs_BlockState * state, int *sequenceNumber);
++	yaffs_BlockState *state, __u32 *sequenceNumber);
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_mtdif2.c
++++ b/fs/yaffs2/yaffs_mtdif2.c
+@@ -14,7 +14,7 @@
+ /* mtd interface for YAFFS2 */
+ 
+ const char *yaffs_mtdif2_c_version =
+-    "$Id: yaffs_mtdif2.c,v 1.17 2007-02-14 01:09:06 wookey Exp $";
++	"$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $";
+ 
+ #include "yportenv.h"
+ 
+@@ -27,19 +27,23 @@ const char *yaffs_mtdif2_c_version =
+ 
+ #include "yaffs_packedtags2.h"
+ 
+-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
+-				      const __u8 * data,
+-				      const yaffs_ExtendedTags * tags)
++/* NB For use with inband tags....
++ * We assume that the data buffer is of size totalBytersPerChunk so that we can also
++ * use it to load the tags.
++ */
++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
++				      const __u8 *data,
++				      const yaffs_ExtendedTags *tags)
+ {
+ 	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	struct mtd_oob_ops ops;
+ #else
+ 	size_t dummy;
+ #endif
+ 	int retval = 0;
+ 
+-	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
++	loff_t addr;
+ 
+ 	yaffs_PackedTags2 pt;
+ 
+@@ -48,46 +52,40 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya
+ 	   ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
+ 	    TENDSTR), chunkInNAND, data, tags));
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+-	if (tags)
+-		yaffs_PackTags2(&pt, tags);
+-	else
+-		BUG(); /* both tags and data should always be present */
+ 
+-	if (data) {
+-		ops.mode = MTD_OOB_AUTO;
+-		ops.ooblen = sizeof(pt);
+-		ops.len = dev->nDataBytesPerChunk;
+-		ops.ooboffs = 0;
+-		ops.datbuf = (__u8 *)data;
+-		ops.oobbuf = (void *)&pt;
+-		retval = mtd->write_oob(mtd, addr, &ops);
++	addr  = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
++
++	/* For yaffs2 writing there must be both data and tags.
++	 * If we're using inband tags, then the tags are stuffed into
++	 * the end of the data buffer.
++	 */
++	if (!data || !tags)
++		BUG();
++	else if (dev->inbandTags) {
++		yaffs_PackedTags2TagsPart *pt2tp;
++		pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk);
++		yaffs_PackTags2TagsPart(pt2tp, tags);
+ 	} else
+-		BUG(); /* both tags and data should always be present */
+-#else
+-	if (tags) {
+ 		yaffs_PackTags2(&pt, tags);
+-	}
+ 
+-	if (data && tags) {
+-		if (dev->useNANDECC)
+-			retval =
+-			    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-					   &dummy, data, (__u8 *) & pt, NULL);
+-		else
+-			retval =
+-			    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-					   &dummy, data, (__u8 *) & pt, NULL);
+-	} else {
+-		if (data)
+-			retval =
+-			    mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
+-				       data);
+-		if (tags)
+-			retval =
+-			    mtd->write_oob(mtd, addr, mtd->oobsize, &dummy,
+-					   (__u8 *) & pt);
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++	ops.mode = MTD_OOB_AUTO;
++	ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt);
++	ops.len = dev->totalBytesPerChunk;
++	ops.ooboffs = 0;
++	ops.datbuf = (__u8 *)data;
++	ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt;
++	retval = mtd->write_oob(mtd, addr, &ops);
+ 
++#else
++	if (!dev->inbandTags) {
++		retval =
++		    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
++				   &dummy, data, (__u8 *) &pt, NULL);
++	} else {
++		retval =
++		    mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy,
++			       data);
+ 	}
+ #endif
+ 
+@@ -97,17 +95,18 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya
+ 		return YAFFS_FAIL;
+ }
+ 
+-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
+-				       __u8 * data, yaffs_ExtendedTags * tags)
++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
++				       __u8 *data, yaffs_ExtendedTags *tags)
+ {
+ 	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	struct mtd_oob_ops ops;
+ #endif
+ 	size_t dummy;
+ 	int retval = 0;
++	int localData = 0;
+ 
+-	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
++	loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
+ 
+ 	yaffs_PackedTags2 pt;
+ 
+@@ -116,9 +115,20 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y
+ 	   ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
+ 	    TENDSTR), chunkInNAND, data, tags));
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+-	if (data && !tags)
+-		retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
++	if (dev->inbandTags) {
++
++		if (!data) {
++			localData = 1;
++			data = yaffs_GetTempBuffer(dev, __LINE__);
++		}
++
++
++	}
++
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++	if (dev->inbandTags || (data && !tags))
++		retval = mtd->read(mtd, addr, dev->totalBytesPerChunk,
+ 				&dummy, data);
+ 	else if (tags) {
+ 		ops.mode = MTD_OOB_AUTO;
+@@ -130,38 +140,42 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y
+ 		retval = mtd->read_oob(mtd, addr, &ops);
+ 	}
+ #else
+-	if (data && tags) {
+-		if (dev->useNANDECC) {
+-			retval =
+-			    mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-					  &dummy, data, dev->spareBuffer,
+-					  NULL);
+-		} else {
+-			retval =
+-			    mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
++	if (!dev->inbandTags && data && tags) {
++
++		retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
+ 					  &dummy, data, dev->spareBuffer,
+ 					  NULL);
+-		}
+ 	} else {
+ 		if (data)
+ 			retval =
+ 			    mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
+ 				      data);
+-		if (tags)
++		if (!dev->inbandTags && tags)
+ 			retval =
+ 			    mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
+ 					  dev->spareBuffer);
+ 	}
+ #endif
+ 
+-	memcpy(&pt, dev->spareBuffer, sizeof(pt));
+ 
+-	if (tags)
+-		yaffs_UnpackTags2(tags, &pt);
++	if (dev->inbandTags) {
++		if (tags) {
++			yaffs_PackedTags2TagsPart *pt2tp;
++			pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
++			yaffs_UnpackTags2TagsPart(tags, pt2tp);
++		}
++	} else {
++		if (tags) {
++			memcpy(&pt, dev->spareBuffer, sizeof(pt));
++			yaffs_UnpackTags2(tags, &pt);
++		}
++	}
++
++	if (localData)
++		yaffs_ReleaseTempBuffer(dev, data, __LINE__);
+ 
+-	if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR)
++	if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR)
+ 		tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
+-
+ 	if (retval == 0)
+ 		return YAFFS_OK;
+ 	else
+@@ -178,7 +192,7 @@ int nandmtd2_MarkNANDBlockBad(struct yaf
+ 	retval =
+ 	    mtd->block_markbad(mtd,
+ 			       blockNo * dev->nChunksPerBlock *
+-			       dev->nDataBytesPerChunk);
++			       dev->totalBytesPerChunk);
+ 
+ 	if (retval == 0)
+ 		return YAFFS_OK;
+@@ -188,7 +202,7 @@ int nandmtd2_MarkNANDBlockBad(struct yaf
+ }
+ 
+ int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-			    yaffs_BlockState * state, int *sequenceNumber)
++			    yaffs_BlockState *state, __u32 *sequenceNumber)
+ {
+ 	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+ 	int retval;
+@@ -198,7 +212,7 @@ int nandmtd2_QueryNANDBlock(struct yaffs
+ 	retval =
+ 	    mtd->block_isbad(mtd,
+ 			     blockNo * dev->nChunksPerBlock *
+-			     dev->nDataBytesPerChunk);
++			     dev->totalBytesPerChunk);
+ 
+ 	if (retval) {
+ 		T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
+--- a/fs/yaffs2/yaffs_mtdif2.h
++++ b/fs/yaffs2/yaffs_mtdif2.h
+@@ -17,13 +17,13 @@
+ #define __YAFFS_MTDIF2_H__
+ 
+ #include "yaffs_guts.h"
+-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
+-				      const __u8 * data,
+-				      const yaffs_ExtendedTags * tags);
+-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
+-				       __u8 * data, yaffs_ExtendedTags * tags);
++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
++				const __u8 *data,
++				const yaffs_ExtendedTags *tags);
++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
++				__u8 *data, yaffs_ExtendedTags *tags);
+ int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
+ int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-			    yaffs_BlockState * state, int *sequenceNumber);
++			yaffs_BlockState *state, __u32 *sequenceNumber);
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_mtdif.c
++++ b/fs/yaffs2/yaffs_mtdif.c
+@@ -12,7 +12,7 @@
+  */
+ 
+ const char *yaffs_mtdif_c_version =
+-    "$Id: yaffs_mtdif.c,v 1.19 2007-02-14 01:09:06 wookey Exp $";
++	"$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $";
+ 
+ #include "yportenv.h"
+ 
+@@ -24,7 +24,7 @@ const char *yaffs_mtdif_c_version =
+ #include "linux/time.h"
+ #include "linux/mtd/nand.h"
+ 
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18))
++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18))
+ static struct nand_oobinfo yaffs_oobinfo = {
+ 	.useecc = 1,
+ 	.eccbytes = 6,
+@@ -36,7 +36,7 @@ static struct nand_oobinfo yaffs_noeccin
+ };
+ #endif
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
+ {
+ 	oob[0] = spare->tagByte0;
+@@ -45,8 +45,8 @@ static inline void translate_spare2oob(c
+ 	oob[3] = spare->tagByte3;
+ 	oob[4] = spare->tagByte4;
+ 	oob[5] = spare->tagByte5 & 0x3f;
+-	oob[5] |= spare->blockStatus == 'Y' ? 0: 0x80;
+-	oob[5] |= spare->pageStatus == 0 ? 0: 0x40;
++	oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80;
++	oob[5] |= spare->pageStatus == 0 ? 0 : 0x40;
+ 	oob[6] = spare->tagByte6;
+ 	oob[7] = spare->tagByte7;
+ }
+@@ -71,18 +71,18 @@ static inline void translate_oob2spare(y
+ }
+ #endif
+ 
+-int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
+-			     const __u8 * data, const yaffs_Spare * spare)
++int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
++			     const __u8 *data, const yaffs_Spare *spare)
+ {
+ 	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	struct mtd_oob_ops ops;
+ #endif
+ 	size_t dummy;
+ 	int retval = 0;
+ 
+ 	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	__u8 spareAsBytes[8]; /* OOB */
+ 
+ 	if (data && !spare)
+@@ -135,18 +135,18 @@ int nandmtd_WriteChunkToNAND(yaffs_Devic
+ 		return YAFFS_FAIL;
+ }
+ 
+-int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
+-			      yaffs_Spare * spare)
++int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data,
++			      yaffs_Spare *spare)
+ {
+ 	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	struct mtd_oob_ops ops;
+ #endif
+ 	size_t dummy;
+ 	int retval = 0;
+ 
+ 	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	__u8 spareAsBytes[8]; /* OOB */
+ 
+ 	if (data && !spare)
+@@ -205,7 +205,7 @@ int nandmtd_ReadChunkFromNAND(yaffs_Devi
+ 		return YAFFS_FAIL;
+ }
+ 
+-int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber)
++int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
+ {
+ 	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+ 	__u32 addr =
+@@ -234,7 +234,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Devic
+ 		return YAFFS_FAIL;
+ }
+ 
+-int nandmtd_InitialiseNAND(yaffs_Device * dev)
++int nandmtd_InitialiseNAND(yaffs_Device *dev)
+ {
+ 	return YAFFS_OK;
+ }
+--- a/fs/yaffs2/yaffs_mtdif.h
++++ b/fs/yaffs2/yaffs_mtdif.h
+@@ -18,10 +18,15 @@
+ 
+ #include "yaffs_guts.h"
+ 
+-int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND,
+-			     const __u8 * data, const yaffs_Spare * spare);
+-int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data,
+-			      yaffs_Spare * spare);
+-int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber);
+-int nandmtd_InitialiseNAND(yaffs_Device * dev);
++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18))
++extern struct nand_oobinfo yaffs_oobinfo;
++extern struct nand_oobinfo yaffs_noeccinfo;
++#endif
++
++int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
++			const __u8 *data, const yaffs_Spare *spare);
++int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data,
++			yaffs_Spare *spare);
++int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber);
++int nandmtd_InitialiseNAND(yaffs_Device *dev);
+ #endif
+--- a/fs/yaffs2/yaffs_nand.c
++++ b/fs/yaffs2/yaffs_nand.c
+@@ -12,16 +12,17 @@
+  */
+ 
+ const char *yaffs_nand_c_version =
+-    "$Id: yaffs_nand.c,v 1.7 2007-02-14 01:09:06 wookey Exp $";
++	"$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey Exp $";
+ 
+ #include "yaffs_nand.h"
+ #include "yaffs_tagscompat.h"
+ #include "yaffs_tagsvalidity.h"
+ 
++#include "yaffs_getblockinfo.h"
+ 
+-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
+-					   __u8 * buffer,
+-					   yaffs_ExtendedTags * tags)
++int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
++					   __u8 *buffer,
++					   yaffs_ExtendedTags *tags)
+ {
+ 	int result;
+ 	yaffs_ExtendedTags localTags;
+@@ -29,7 +30,7 @@ int yaffs_ReadChunkWithTagsFromNAND(yaff
+ 	int realignedChunkInNAND = chunkInNAND - dev->chunkOffset;
+ 
+ 	/* If there are no tags provided, use local tags to get prioritised gc working */
+-	if(!tags)
++	if (!tags)
+ 		tags = &localTags;
+ 
+ 	if (dev->readChunkWithTagsFromNAND)
+@@ -40,20 +41,20 @@ int yaffs_ReadChunkWithTagsFromNAND(yaff
+ 									realignedChunkInNAND,
+ 									buffer,
+ 									tags);
+-	if(tags &&
+-	   tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR){
++	if (tags &&
++	   tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) {
+ 
+ 		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock);
+-                yaffs_HandleChunkError(dev,bi);
++		yaffs_HandleChunkError(dev, bi);
+ 	}
+ 
+ 	return result;
+ }
+ 
+-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev,
++int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev,
+ 						   int chunkInNAND,
+-						   const __u8 * buffer,
+-						   yaffs_ExtendedTags * tags)
++						   const __u8 *buffer,
++						   yaffs_ExtendedTags *tags)
+ {
+ 	chunkInNAND -= dev->chunkOffset;
+ 
+@@ -84,7 +85,7 @@ int yaffs_WriteChunkWithTagsToNAND(yaffs
+ 								       tags);
+ }
+ 
+-int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo)
++int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo)
+ {
+ 	blockNo -= dev->blockOffset;
+ 
+@@ -95,10 +96,10 @@ int yaffs_MarkBlockBad(yaffs_Device * de
+ 		return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo);
+ }
+ 
+-int yaffs_QueryInitialBlockState(yaffs_Device * dev,
++int yaffs_QueryInitialBlockState(yaffs_Device *dev,
+ 						 int blockNo,
+-						 yaffs_BlockState * state,
+-						 unsigned *sequenceNumber)
++						 yaffs_BlockState *state,
++						 __u32 *sequenceNumber)
+ {
+ 	blockNo -= dev->blockOffset;
+ 
+--- a/fs/yaffs2/yaffs_nandemul2k.h
++++ b/fs/yaffs2/yaffs_nandemul2k.h
+@@ -21,14 +21,14 @@
+ #include "yaffs_guts.h"
+ 
+ int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
+-					int chunkInNAND, const __u8 * data,
+-					yaffs_ExtendedTags * tags);
++					int chunkInNAND, const __u8 *data,
++					const yaffs_ExtendedTags *tags);
+ int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev,
+-					 int chunkInNAND, __u8 * data,
+-					 yaffs_ExtendedTags * tags);
++					 int chunkInNAND, __u8 *data,
++					 yaffs_ExtendedTags *tags);
+ int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
+ int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-			      yaffs_BlockState * state, int *sequenceNumber);
++			      yaffs_BlockState *state, __u32 *sequenceNumber);
+ int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
+ 				int blockInNAND);
+ int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev);
+--- a/fs/yaffs2/yaffs_nand.h
++++ b/fs/yaffs2/yaffs_nand.h
+@@ -19,21 +19,21 @@
+ 
+ 
+ 
+-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
+-					   __u8 * buffer,
+-					   yaffs_ExtendedTags * tags);
+-
+-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev,
+-						   int chunkInNAND,
+-						   const __u8 * buffer,
+-						   yaffs_ExtendedTags * tags);
+-
+-int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo);
+-
+-int yaffs_QueryInitialBlockState(yaffs_Device * dev,
+-						 int blockNo,
+-						 yaffs_BlockState * state,
+-						 unsigned *sequenceNumber);
++int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
++					__u8 *buffer,
++					yaffs_ExtendedTags *tags);
++
++int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev,
++						int chunkInNAND,
++						const __u8 *buffer,
++						yaffs_ExtendedTags *tags);
++
++int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo);
++
++int yaffs_QueryInitialBlockState(yaffs_Device *dev,
++						int blockNo,
++						yaffs_BlockState *state,
++						unsigned *sequenceNumber);
+ 
+ int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
+ 				  int blockInNAND);
+--- a/fs/yaffs2/yaffs_packedtags1.c
++++ b/fs/yaffs2/yaffs_packedtags1.c
+@@ -14,7 +14,7 @@
+ #include "yaffs_packedtags1.h"
+ #include "yportenv.h"
+ 
+-void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t)
++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t)
+ {
+ 	pt->chunkId = t->chunkId;
+ 	pt->serialNumber = t->serialNumber;
+@@ -27,7 +27,7 @@ void yaffs_PackTags1(yaffs_PackedTags1 *
+ 
+ }
+ 
+-void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt)
++void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt)
+ {
+ 	static const __u8 allFF[] =
+ 	    { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+@@ -35,9 +35,8 @@ void yaffs_UnpackTags1(yaffs_ExtendedTag
+ 
+ 	if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) {
+ 		t->blockBad = 0;
+-		if (pt->shouldBeFF != 0xFFFFFFFF) {
++		if (pt->shouldBeFF != 0xFFFFFFFF)
+ 			t->blockBad = 1;
+-		}
+ 		t->chunkUsed = 1;
+ 		t->objectId = pt->objectId;
+ 		t->chunkId = pt->chunkId;
+@@ -47,6 +46,5 @@ void yaffs_UnpackTags1(yaffs_ExtendedTag
+ 		t->serialNumber = pt->serialNumber;
+ 	} else {
+ 		memset(t, 0, sizeof(yaffs_ExtendedTags));
+-
+ 	}
+ }
+--- a/fs/yaffs2/yaffs_packedtags1.h
++++ b/fs/yaffs2/yaffs_packedtags1.h
+@@ -32,6 +32,6 @@ typedef struct {
+ 
+ } yaffs_PackedTags1;
+ 
+-void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t);
+-void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt);
++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t);
++void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt);
+ #endif
+--- a/fs/yaffs2/yaffs_packedtags2.c
++++ b/fs/yaffs2/yaffs_packedtags2.c
+@@ -37,60 +37,68 @@
+ #define EXTRA_OBJECT_TYPE_SHIFT (28)
+ #define EXTRA_OBJECT_TYPE_MASK  ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT)
+ 
+-static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt)
++
++static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart *ptt)
+ {
+ 	T(YAFFS_TRACE_MTD,
+ 	  (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR),
+-	   pt->t.objectId, pt->t.chunkId, pt->t.byteCount,
+-	   pt->t.sequenceNumber));
++	   ptt->objectId, ptt->chunkId, ptt->byteCount,
++	   ptt->sequenceNumber));
++}
++static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt)
++{
++	yaffs_DumpPackedTags2TagsPart(&pt->t);
+ }
+ 
+-static void yaffs_DumpTags2(const yaffs_ExtendedTags * t)
++static void yaffs_DumpTags2(const yaffs_ExtendedTags *t)
+ {
+ 	T(YAFFS_TRACE_MTD,
+ 	  (TSTR
+-	   ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte "
+-	    "%d del %d ser %d seq %d"
++	   ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d"
+ 	    TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId,
+ 	   t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber,
+ 	   t->sequenceNumber));
+ 
+ }
+ 
+-void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t)
++void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt,
++		const yaffs_ExtendedTags *t)
+ {
+-	pt->t.chunkId = t->chunkId;
+-	pt->t.sequenceNumber = t->sequenceNumber;
+-	pt->t.byteCount = t->byteCount;
+-	pt->t.objectId = t->objectId;
++	ptt->chunkId = t->chunkId;
++	ptt->sequenceNumber = t->sequenceNumber;
++	ptt->byteCount = t->byteCount;
++	ptt->objectId = t->objectId;
+ 
+ 	if (t->chunkId == 0 && t->extraHeaderInfoAvailable) {
+ 		/* Store the extra header info instead */
+ 		/* We save the parent object in the chunkId */
+-		pt->t.chunkId = EXTRA_HEADER_INFO_FLAG
++		ptt->chunkId = EXTRA_HEADER_INFO_FLAG
+ 			| t->extraParentObjectId;
+-		if (t->extraIsShrinkHeader) {
+-			pt->t.chunkId |= EXTRA_SHRINK_FLAG;
+-		}
+-		if (t->extraShadows) {
+-			pt->t.chunkId |= EXTRA_SHADOWS_FLAG;
+-		}
++		if (t->extraIsShrinkHeader)
++			ptt->chunkId |= EXTRA_SHRINK_FLAG;
++		if (t->extraShadows)
++			ptt->chunkId |= EXTRA_SHADOWS_FLAG;
+ 
+-		pt->t.objectId &= ~EXTRA_OBJECT_TYPE_MASK;
+-		pt->t.objectId |=
++		ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
++		ptt->objectId |=
+ 		    (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT);
+ 
+-		if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) {
+-			pt->t.byteCount = t->extraEquivalentObjectId;
+-		} else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) {
+-			pt->t.byteCount = t->extraFileLength;
+-		} else {
+-			pt->t.byteCount = 0;
+-		}
++		if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK)
++			ptt->byteCount = t->extraEquivalentObjectId;
++		else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE)
++			ptt->byteCount = t->extraFileLength;
++		else
++			ptt->byteCount = 0;
+ 	}
+ 
+-	yaffs_DumpPackedTags2(pt);
++	yaffs_DumpPackedTags2TagsPart(ptt);
+ 	yaffs_DumpTags2(t);
++}
++
++
++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t)
++{
++	yaffs_PackTags2TagsPart(&pt->t, t);
+ 
+ #ifndef YAFFS_IGNORE_TAGS_ECC
+ 	{
+@@ -101,82 +109,98 @@ void yaffs_PackTags2(yaffs_PackedTags2 *
+ #endif
+ }
+ 
+-void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt)
++
++void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t,
++		yaffs_PackedTags2TagsPart *ptt)
+ {
+ 
+ 	memset(t, 0, sizeof(yaffs_ExtendedTags));
+ 
+ 	yaffs_InitialiseTags(t);
+ 
+-	if (pt->t.sequenceNumber != 0xFFFFFFFF) {
+-		/* Page is in use */
+-#ifdef YAFFS_IGNORE_TAGS_ECC
+-		{
+-			t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+-		}
+-#else
+-		{
+-			yaffs_ECCOther ecc;
+-			int result;
+-			yaffs_ECCCalculateOther((unsigned char *)&pt->t,
+-						sizeof
+-						(yaffs_PackedTags2TagsPart),
+-						&ecc);
+-			result =
+-			    yaffs_ECCCorrectOther((unsigned char *)&pt->t,
+-						  sizeof
+-						  (yaffs_PackedTags2TagsPart),
+-						  &pt->ecc, &ecc);
+-			switch(result){
+-				case 0:
+-					t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+-					break;
+-				case 1:
+-					t->eccResult = YAFFS_ECC_RESULT_FIXED;
+-					break;
+-				case -1:
+-					t->eccResult = YAFFS_ECC_RESULT_UNFIXED;
+-					break;
+-				default:
+-					t->eccResult = YAFFS_ECC_RESULT_UNKNOWN;
+-			}
+-		}
+-#endif
++	if (ptt->sequenceNumber != 0xFFFFFFFF) {
+ 		t->blockBad = 0;
+ 		t->chunkUsed = 1;
+-		t->objectId = pt->t.objectId;
+-		t->chunkId = pt->t.chunkId;
+-		t->byteCount = pt->t.byteCount;
++		t->objectId = ptt->objectId;
++		t->chunkId = ptt->chunkId;
++		t->byteCount = ptt->byteCount;
+ 		t->chunkDeleted = 0;
+ 		t->serialNumber = 0;
+-		t->sequenceNumber = pt->t.sequenceNumber;
++		t->sequenceNumber = ptt->sequenceNumber;
+ 
+ 		/* Do extra header info stuff */
+ 
+-		if (pt->t.chunkId & EXTRA_HEADER_INFO_FLAG) {
++		if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) {
+ 			t->chunkId = 0;
+ 			t->byteCount = 0;
+ 
+ 			t->extraHeaderInfoAvailable = 1;
+ 			t->extraParentObjectId =
+-			    pt->t.chunkId & (~(ALL_EXTRA_FLAGS));
++			    ptt->chunkId & (~(ALL_EXTRA_FLAGS));
+ 			t->extraIsShrinkHeader =
+-			    (pt->t.chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0;
++			    (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0;
+ 			t->extraShadows =
+-			    (pt->t.chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0;
++			    (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0;
+ 			t->extraObjectType =
+-			    pt->t.objectId >> EXTRA_OBJECT_TYPE_SHIFT;
++			    ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT;
+ 			t->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
+ 
+-			if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) {
+-				t->extraEquivalentObjectId = pt->t.byteCount;
+-			} else {
+-				t->extraFileLength = pt->t.byteCount;
++			if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK)
++				t->extraEquivalentObjectId = ptt->byteCount;
++			else
++				t->extraFileLength = ptt->byteCount;
++		}
++	}
++
++	yaffs_DumpPackedTags2TagsPart(ptt);
++	yaffs_DumpTags2(t);
++
++}
++
++
++void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt)
++{
++
++	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR;
++
++	if (pt->t.sequenceNumber != 0xFFFFFFFF) {
++		/* Page is in use */
++#ifndef YAFFS_IGNORE_TAGS_ECC
++		{
++			yaffs_ECCOther ecc;
++			int result;
++			yaffs_ECCCalculateOther((unsigned char *)&pt->t,
++						sizeof
++						(yaffs_PackedTags2TagsPart),
++						&ecc);
++			result =
++			    yaffs_ECCCorrectOther((unsigned char *)&pt->t,
++						  sizeof
++						  (yaffs_PackedTags2TagsPart),
++						  &pt->ecc, &ecc);
++			switch (result) {
++			case 0:
++				eccResult = YAFFS_ECC_RESULT_NO_ERROR;
++				break;
++			case 1:
++				eccResult = YAFFS_ECC_RESULT_FIXED;
++				break;
++			case -1:
++				eccResult = YAFFS_ECC_RESULT_UNFIXED;
++				break;
++			default:
++				eccResult = YAFFS_ECC_RESULT_UNKNOWN;
+ 			}
+ 		}
++#endif
+ 	}
+ 
++	yaffs_UnpackTags2TagsPart(t, &pt->t);
++
++	t->eccResult = eccResult;
++
+ 	yaffs_DumpPackedTags2(pt);
+ 	yaffs_DumpTags2(t);
+ 
+ }
++
+--- a/fs/yaffs2/yaffs_packedtags2.h
++++ b/fs/yaffs2/yaffs_packedtags2.h
+@@ -33,6 +33,11 @@ typedef struct {
+ 	yaffs_ECCOther ecc;
+ } yaffs_PackedTags2;
+ 
+-void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t);
+-void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt);
++/* Full packed tags with ECC, used for oob tags */
++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t);
++void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt);
++
++/* Only the tags part (no ECC for use with inband tags */
++void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t);
++void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt);
+ #endif
+--- a/fs/yaffs2/yaffs_qsort.c
++++ b/fs/yaffs2/yaffs_qsort.c
+@@ -28,12 +28,12 @@
+  */
+ 
+ #include "yportenv.h"
+-//#include <linux/string.h>
++/* #include <linux/string.h> */
+ 
+ /*
+  * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function".
+  */
+-#define swapcode(TYPE, parmi, parmj, n) { 		\
++#define swapcode(TYPE, parmi, parmj, n) do { 		\
+ 	long i = (n) / sizeof (TYPE); 			\
+ 	register TYPE *pi = (TYPE *) (parmi); 		\
+ 	register TYPE *pj = (TYPE *) (parmj); 		\
+@@ -41,28 +41,29 @@
+ 		register TYPE	t = *pi;		\
+ 		*pi++ = *pj;				\
+ 		*pj++ = t;				\
+-        } while (--i > 0);				\
+-}
++	} while (--i > 0);				\
++} while (0)
+ 
+ #define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \
+-	es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1;
++	es % sizeof(long) ? 2 : es == sizeof(long) ? 0 : 1;
+ 
+ static __inline void
+ swapfunc(char *a, char *b, int n, int swaptype)
+ {
+ 	if (swaptype <= 1)
+-		swapcode(long, a, b, n)
++		swapcode(long, a, b, n);
+ 	else
+-		swapcode(char, a, b, n)
++		swapcode(char, a, b, n);
+ }
+ 
+-#define swap(a, b)					\
++#define yswap(a, b) do {					\
+ 	if (swaptype == 0) {				\
+ 		long t = *(long *)(a);			\
+ 		*(long *)(a) = *(long *)(b);		\
+ 		*(long *)(b) = t;			\
+ 	} else						\
+-		swapfunc(a, b, es, swaptype)
++		swapfunc(a, b, es, swaptype);		\
++} while (0)
+ 
+ #define vecswap(a, b, n) 	if ((n) > 0) swapfunc(a, b, n, swaptype)
+ 
+@@ -70,12 +71,12 @@ static __inline char *
+ med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *))
+ {
+ 	return cmp(a, b) < 0 ?
+-	       (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a ))
+-              :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c ));
++		(cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a))
++		: (cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c));
+ }
+ 
+ #ifndef min
+-#define min(a,b) (((a) < (b)) ? (a) : (b))
++#define min(a, b) (((a) < (b)) ? (a) : (b))
+ #endif
+ 
+ void
+@@ -92,7 +93,7 @@ loop:	SWAPINIT(a, es);
+ 		for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es)
+ 			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
+ 			     pl -= es)
+-				swap(pl, pl - es);
++				yswap(pl, pl - es);
+ 		return;
+ 	}
+ 	pm = (char *)a + (n / 2) * es;
+@@ -107,7 +108,7 @@ loop:	SWAPINIT(a, es);
+ 		}
+ 		pm = med3(pl, pm, pn, cmp);
+ 	}
+-	swap(a, pm);
++	yswap(a, pm);
+ 	pa = pb = (char *)a + es;
+ 
+ 	pc = pd = (char *)a + (n - 1) * es;
+@@ -115,7 +116,7 @@ loop:	SWAPINIT(a, es);
+ 		while (pb <= pc && (r = cmp(pb, a)) <= 0) {
+ 			if (r == 0) {
+ 				swap_cnt = 1;
+-				swap(pa, pb);
++				yswap(pa, pb);
+ 				pa += es;
+ 			}
+ 			pb += es;
+@@ -123,14 +124,14 @@ loop:	SWAPINIT(a, es);
+ 		while (pb <= pc && (r = cmp(pc, a)) >= 0) {
+ 			if (r == 0) {
+ 				swap_cnt = 1;
+-				swap(pc, pd);
++				yswap(pc, pd);
+ 				pd -= es;
+ 			}
+ 			pc -= es;
+ 		}
+ 		if (pb > pc)
+ 			break;
+-		swap(pb, pc);
++		yswap(pb, pc);
+ 		swap_cnt = 1;
+ 		pb += es;
+ 		pc -= es;
+@@ -139,7 +140,7 @@ loop:	SWAPINIT(a, es);
+ 		for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es)
+ 			for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0;
+ 			     pl -= es)
+-				swap(pl, pl - es);
++				yswap(pl, pl - es);
+ 		return;
+ 	}
+ 
+@@ -148,9 +149,11 @@ loop:	SWAPINIT(a, es);
+ 	vecswap(a, pb - r, r);
+ 	r = min((long)(pd - pc), (long)(pn - pd - es));
+ 	vecswap(pb, pn - r, r);
+-	if ((r = pb - pa) > es)
++	r = pb - pa;
++	if (r > es)
+ 		yaffs_qsort(a, r / es, es, cmp);
+-	if ((r = pd - pc) > es) {
++	r = pd - pc;
++	if (r > es) {
+ 		/* Iterate rather than recurse to save stack space */
+ 		a = pn - r;
+ 		n = r / es;
+--- a/fs/yaffs2/yaffs_qsort.h
++++ b/fs/yaffs2/yaffs_qsort.h
+@@ -17,7 +17,7 @@
+ #ifndef __YAFFS_QSORT_H__
+ #define __YAFFS_QSORT_H__
+ 
+-extern void yaffs_qsort (void *const base, size_t total_elems, size_t size,
+-                   int (*cmp)(const void *, const void *));
++extern void yaffs_qsort(void *const base, size_t total_elems, size_t size,
++			int (*cmp)(const void *, const void *));
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_tagscompat.c
++++ b/fs/yaffs2/yaffs_tagscompat.c
+@@ -14,16 +14,17 @@
+ #include "yaffs_guts.h"
+ #include "yaffs_tagscompat.h"
+ #include "yaffs_ecc.h"
++#include "yaffs_getblockinfo.h"
+ 
+-static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND);
++static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND);
+ #ifdef NOTYET
+-static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND);
+-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
+-				     const __u8 * data,
+-				     const yaffs_Spare * spare);
+-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
+-				    const yaffs_Spare * spare);
+-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND);
++static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND);
++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
++				     const __u8 *data,
++				     const yaffs_Spare *spare);
++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
++				    const yaffs_Spare *spare);
++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND);
+ #endif
+ 
+ static const char yaffs_countBitsTable[256] = {
+@@ -54,13 +55,13 @@ int yaffs_CountBits(__u8 x)
+ 
+ /********** Tags ECC calculations  *********/
+ 
+-void yaffs_CalcECC(const __u8 * data, yaffs_Spare * spare)
++void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare)
+ {
+ 	yaffs_ECCCalculate(data, spare->ecc1);
+ 	yaffs_ECCCalculate(&data[256], spare->ecc2);
+ }
+ 
+-void yaffs_CalcTagsECC(yaffs_Tags * tags)
++void yaffs_CalcTagsECC(yaffs_Tags *tags)
+ {
+ 	/* Calculate an ecc */
+ 
+@@ -74,9 +75,8 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags
+ 	for (i = 0; i < 8; i++) {
+ 		for (j = 1; j & 0xff; j <<= 1) {
+ 			bit++;
+-			if (b[i] & j) {
++			if (b[i] & j)
+ 				ecc ^= bit;
+-			}
+ 		}
+ 	}
+ 
+@@ -84,7 +84,7 @@ void yaffs_CalcTagsECC(yaffs_Tags * tags
+ 
+ }
+ 
+-int yaffs_CheckECCOnTags(yaffs_Tags * tags)
++int yaffs_CheckECCOnTags(yaffs_Tags *tags)
+ {
+ 	unsigned ecc = tags->ecc;
+ 
+@@ -115,8 +115,8 @@ int yaffs_CheckECCOnTags(yaffs_Tags * ta
+ 
+ /********** Tags **********/
+ 
+-static void yaffs_LoadTagsIntoSpare(yaffs_Spare * sparePtr,
+-				    yaffs_Tags * tagsPtr)
++static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr,
++				yaffs_Tags *tagsPtr)
+ {
+ 	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
+ 
+@@ -132,8 +132,8 @@ static void yaffs_LoadTagsIntoSpare(yaff
+ 	sparePtr->tagByte7 = tu->asBytes[7];
+ }
+ 
+-static void yaffs_GetTagsFromSpare(yaffs_Device * dev, yaffs_Spare * sparePtr,
+-				   yaffs_Tags * tagsPtr)
++static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr,
++				yaffs_Tags *tagsPtr)
+ {
+ 	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
+ 	int result;
+@@ -148,21 +148,20 @@ static void yaffs_GetTagsFromSpare(yaffs
+ 	tu->asBytes[7] = sparePtr->tagByte7;
+ 
+ 	result = yaffs_CheckECCOnTags(tagsPtr);
+-	if (result > 0) {
++	if (result > 0)
+ 		dev->tagsEccFixed++;
+-	} else if (result < 0) {
++	else if (result < 0)
+ 		dev->tagsEccUnfixed++;
+-	}
+ }
+ 
+-static void yaffs_SpareInitialise(yaffs_Spare * spare)
++static void yaffs_SpareInitialise(yaffs_Spare *spare)
+ {
+ 	memset(spare, 0xFF, sizeof(yaffs_Spare));
+ }
+ 
+ static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev,
+-				  int chunkInNAND, const __u8 * data,
+-				  yaffs_Spare * spare)
++				int chunkInNAND, const __u8 *data,
++				yaffs_Spare *spare)
+ {
+ 	if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) {
+ 		T(YAFFS_TRACE_ERROR,
+@@ -177,9 +176,9 @@ static int yaffs_WriteChunkToNAND(struct
+ 
+ static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
+ 				   int chunkInNAND,
+-				   __u8 * data,
+-				   yaffs_Spare * spare,
+-				   yaffs_ECCResult * eccResult,
++				   __u8 *data,
++				   yaffs_Spare *spare,
++				   yaffs_ECCResult *eccResult,
+ 				   int doErrorCorrection)
+ {
+ 	int retVal;
+@@ -252,9 +251,11 @@ static int yaffs_ReadChunkFromNAND(struc
+ 		/* Must allocate enough memory for spare+2*sizeof(int) */
+ 		/* for ecc results from device. */
+ 		struct yaffs_NANDSpare nspare;
+-		retVal =
+-		    dev->readChunkFromNAND(dev, chunkInNAND, data,
+-					   (yaffs_Spare *) & nspare);
++
++		memset(&nspare, 0, sizeof(nspare));
++
++		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data,
++					(yaffs_Spare *) &nspare);
+ 		memcpy(spare, &nspare, sizeof(yaffs_Spare));
+ 		if (data && doErrorCorrection) {
+ 			if (nspare.eccres1 > 0) {
+@@ -302,8 +303,7 @@ static int yaffs_ReadChunkFromNAND(struc
+ static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
+ 				  int chunkInNAND)
+ {
+-
+-	static int init = 0;
++	static int init;
+ 	static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK];
+ 	static __u8 data[YAFFS_BYTES_PER_CHUNK];
+ 	/* Might as well always allocate the larger size for */
+@@ -331,12 +331,12 @@ static int yaffs_CheckChunkErased(struct
+  * Functions for robustisizing
+  */
+ 
+-static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND)
++static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND)
+ {
+ 	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
+ 
+ 	/* Mark the block for retirement */
+-	yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1;
++	yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1;
+ 	T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
+ 	  (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND));
+ 
+@@ -348,22 +348,22 @@ static void yaffs_HandleReadDataError(ya
+ }
+ 
+ #ifdef NOTYET
+-static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND)
++static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND)
+ {
+ }
+ 
+-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
+-				     const __u8 * data,
+-				     const yaffs_Spare * spare)
++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
++				     const __u8 *data,
++				     const yaffs_Spare *spare)
+ {
+ }
+ 
+-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
+-				    const yaffs_Spare * spare)
++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
++				    const yaffs_Spare *spare)
+ {
+ }
+ 
+-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND)
++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND)
+ {
+ 	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
+ 
+@@ -373,8 +373,8 @@ static void yaffs_HandleWriteChunkError(
+ 	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
+ }
+ 
+-static int yaffs_VerifyCompare(const __u8 * d0, const __u8 * d1,
+-			       const yaffs_Spare * s0, const yaffs_Spare * s1)
++static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1,
++			       const yaffs_Spare *s0, const yaffs_Spare *s1)
+ {
+ 
+ 	if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 ||
+@@ -398,28 +398,35 @@ static int yaffs_VerifyCompare(const __u
+ }
+ #endif				/* NOTYET */
+ 
+-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev,
+-						    int chunkInNAND,
+-						    const __u8 * data,
+-						    const yaffs_ExtendedTags *
+-						    eTags)
++int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
++						int chunkInNAND,
++						const __u8 *data,
++						const yaffs_ExtendedTags *eTags)
+ {
+ 	yaffs_Spare spare;
+ 	yaffs_Tags tags;
+ 
+ 	yaffs_SpareInitialise(&spare);
+ 
+-	if (eTags->chunkDeleted) {
++	if (eTags->chunkDeleted)
+ 		spare.pageStatus = 0;
+-	} else {
++	else {
+ 		tags.objectId = eTags->objectId;
+ 		tags.chunkId = eTags->chunkId;
+-		tags.byteCount = eTags->byteCount;
++
++		tags.byteCountLSB = eTags->byteCount & 0x3ff;
++
++		if (dev->nDataBytesPerChunk >= 1024)
++			tags.byteCountMSB = (eTags->byteCount >> 10) & 3;
++		else
++			tags.byteCountMSB = 3;
++
++
+ 		tags.serialNumber = eTags->serialNumber;
+ 
+-		if (!dev->useNANDECC && data) {
++		if (!dev->useNANDECC && data)
+ 			yaffs_CalcECC(data, &spare);
+-		}
++
+ 		yaffs_LoadTagsIntoSpare(&spare, &tags);
+ 
+ 	}
+@@ -427,15 +434,15 @@ int yaffs_TagsCompatabilityWriteChunkWit
+ 	return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare);
+ }
+ 
+-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev,
++int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
+ 						     int chunkInNAND,
+-						     __u8 * data,
+-						     yaffs_ExtendedTags * eTags)
++						     __u8 *data,
++						     yaffs_ExtendedTags *eTags)
+ {
+ 
+ 	yaffs_Spare spare;
+ 	yaffs_Tags tags;
+-	yaffs_ECCResult eccResult;
++	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN;
+ 
+ 	static yaffs_Spare spareFF;
+ 	static int init;
+@@ -466,7 +473,11 @@ int yaffs_TagsCompatabilityReadChunkWith
+ 
+ 				eTags->objectId = tags.objectId;
+ 				eTags->chunkId = tags.chunkId;
+-				eTags->byteCount = tags.byteCount;
++				eTags->byteCount = tags.byteCountLSB;
++
++				if (dev->nDataBytesPerChunk >= 1024)
++					eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10);
++
+ 				eTags->serialNumber = tags.serialNumber;
+ 			}
+ 		}
+@@ -497,9 +508,9 @@ int yaffs_TagsCompatabilityMarkNANDBlock
+ }
+ 
+ int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
+-					  int blockNo, yaffs_BlockState *
+-					  state,
+-					  int *sequenceNumber)
++					  int blockNo,
++					  yaffs_BlockState *state,
++					  __u32 *sequenceNumber)
+ {
+ 
+ 	yaffs_Spare spare0, spare1;
+--- a/fs/yaffs2/yaffs_tagscompat.h
++++ b/fs/yaffs2/yaffs_tagscompat.h
+@@ -17,24 +17,23 @@
+ #define __YAFFS_TAGSCOMPAT_H__
+ 
+ #include "yaffs_guts.h"
+-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev,
+-						    int chunkInNAND,
+-						    const __u8 * data,
+-						    const yaffs_ExtendedTags *
+-						    tags);
+-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev,
+-						     int chunkInNAND,
+-						     __u8 * data,
+-						     yaffs_ExtendedTags *
+-						     tags);
++int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
++						int chunkInNAND,
++						const __u8 *data,
++						const yaffs_ExtendedTags *tags);
++int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
++						int chunkInNAND,
++						__u8 *data,
++						yaffs_ExtendedTags *tags);
+ int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
+ 					    int blockNo);
+ int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
+-					  int blockNo, yaffs_BlockState *
+-					  state, int *sequenceNumber);
++					  int blockNo,
++					  yaffs_BlockState *state,
++					  __u32 *sequenceNumber);
+ 
+-void yaffs_CalcTagsECC(yaffs_Tags * tags);
+-int yaffs_CheckECCOnTags(yaffs_Tags * tags);
++void yaffs_CalcTagsECC(yaffs_Tags *tags);
++int yaffs_CheckECCOnTags(yaffs_Tags *tags);
+ int yaffs_CountBits(__u8 byte);
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_tagsvalidity.c
++++ b/fs/yaffs2/yaffs_tagsvalidity.c
+@@ -13,14 +13,14 @@
+ 
+ #include "yaffs_tagsvalidity.h"
+ 
+-void yaffs_InitialiseTags(yaffs_ExtendedTags * tags)
++void yaffs_InitialiseTags(yaffs_ExtendedTags *tags)
+ {
+ 	memset(tags, 0, sizeof(yaffs_ExtendedTags));
+ 	tags->validMarker0 = 0xAAAAAAAA;
+ 	tags->validMarker1 = 0x55555555;
+ }
+ 
+-int yaffs_ValidateTags(yaffs_ExtendedTags * tags)
++int yaffs_ValidateTags(yaffs_ExtendedTags *tags)
+ {
+ 	return (tags->validMarker0 == 0xAAAAAAAA &&
+ 		tags->validMarker1 == 0x55555555);
+--- a/fs/yaffs2/yaffs_tagsvalidity.h
++++ b/fs/yaffs2/yaffs_tagsvalidity.h
+@@ -19,6 +19,6 @@
+ 
+ #include "yaffs_guts.h"
+ 
+-void yaffs_InitialiseTags(yaffs_ExtendedTags * tags);
+-int yaffs_ValidateTags(yaffs_ExtendedTags * tags);
++void yaffs_InitialiseTags(yaffs_ExtendedTags *tags);
++int yaffs_ValidateTags(yaffs_ExtendedTags *tags);
+ #endif
+--- a/fs/yaffs2/yportenv.h
++++ b/fs/yaffs2/yportenv.h
+@@ -17,17 +17,28 @@
+ #ifndef __YPORTENV_H__
+ #define __YPORTENV_H__
+ 
++/*
++ * Define the MTD version in terms of Linux Kernel versions
++ * This allows yaffs to be used independantly of the kernel
++ * as well as with it.
++ */
++
++#define MTD_VERSION(a, b, c) (((a) << 16) + ((b) << 8) + (c))
++
+ #if defined CONFIG_YAFFS_WINCE
+ 
+ #include "ywinceenv.h"
+ 
+-#elif  defined __KERNEL__
++#elif defined __KERNEL__
+ 
+ #include "moduleconfig.h"
+ 
+ /* Linux kernel */
++
+ #include <linux/version.h>
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
++#define MTD_VERSION_CODE LINUX_VERSION_CODE
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+ #include <linux/config.h>
+ #endif
+ #include <linux/kernel.h>
+@@ -40,12 +51,13 @@
+ #define YCHAR char
+ #define YUCHAR unsigned char
+ #define _Y(x)     x
+-#define yaffs_strcpy(a,b)    strcpy(a,b)
+-#define yaffs_strncpy(a,b,c) strncpy(a,b,c)
+-#define yaffs_strncmp(a,b,c) strncmp(a,b,c)
+-#define yaffs_strlen(s)	     strlen(s)
+-#define yaffs_sprintf	     sprintf
+-#define yaffs_toupper(a)     toupper(a)
++#define yaffs_strcat(a, b)     strcat(a, b)
++#define yaffs_strcpy(a, b)     strcpy(a, b)
++#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
++#define yaffs_strncmp(a, b, c) strncmp(a, b, c)
++#define yaffs_strlen(s)	       strlen(s)
++#define yaffs_sprintf	       sprintf
++#define yaffs_toupper(a)       toupper(a)
+ 
+ #define Y_INLINE inline
+ 
+@@ -53,19 +65,19 @@
+ #define YAFFS_LOSTNFOUND_PREFIX		"obj"
+ 
+ /* #define YPRINTF(x) printk x */
+-#define YMALLOC(x) kmalloc(x,GFP_KERNEL)
++#define YMALLOC(x) kmalloc(x, GFP_NOFS)
+ #define YFREE(x)   kfree(x)
+ #define YMALLOC_ALT(x) vmalloc(x)
+ #define YFREE_ALT(x)   vfree(x)
+ #define YMALLOC_DMA(x) YMALLOC(x)
+ 
+-// KR - added for use in scan so processes aren't blocked indefinitely.
++/* KR - added for use in scan so processes aren't blocked indefinitely. */
+ #define YYIELD() schedule()
+ 
+ #define YAFFS_ROOT_MODE			0666
+ #define YAFFS_LOSTNFOUND_MODE		0666
+ 
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
+ #define Y_TIME_CONVERT(x) (x).tv_sec
+ #else
+@@ -73,11 +85,12 @@
+ #define Y_TIME_CONVERT(x) (x)
+ #endif
+ 
+-#define yaffs_SumCompare(x,y) ((x) == (y))
+-#define yaffs_strcmp(a,b) strcmp(a,b)
++#define yaffs_SumCompare(x, y) ((x) == (y))
++#define yaffs_strcmp(a, b) strcmp(a, b)
+ 
+ #define TENDSTR "\n"
+ #define TSTR(x) KERN_WARNING x
++#define TCONT(x) x
+ #define TOUT(p) printk p
+ 
+ #define yaffs_trace(mask, fmt, args...) \
+@@ -90,6 +103,8 @@
+ 
+ #elif defined CONFIG_YAFFS_DIRECT
+ 
++#define MTD_VERSION_CODE MTD_VERSION(2, 6, 22)
++
+ /* Direct interface */
+ #include "ydirectenv.h"
+ 
+@@ -111,11 +126,12 @@
+ #define YCHAR char
+ #define YUCHAR unsigned char
+ #define _Y(x)     x
+-#define yaffs_strcpy(a,b)    strcpy(a,b)
+-#define yaffs_strncpy(a,b,c) strncpy(a,b,c)
+-#define yaffs_strlen(s)	     strlen(s)
+-#define yaffs_sprintf	     sprintf
+-#define yaffs_toupper(a)     toupper(a)
++#define yaffs_strcat(a, b)     strcat(a, b)
++#define yaffs_strcpy(a, b)     strcpy(a, b)
++#define yaffs_strncpy(a, b, c) strncpy(a, b, c)
++#define yaffs_strlen(s)	       strlen(s)
++#define yaffs_sprintf	       sprintf
++#define yaffs_toupper(a)       toupper(a)
+ 
+ #define Y_INLINE inline
+ 
+@@ -133,8 +149,8 @@
+ #define YAFFS_ROOT_MODE				0666
+ #define YAFFS_LOSTNFOUND_MODE		0666
+ 
+-#define yaffs_SumCompare(x,y) ((x) == (y))
+-#define yaffs_strcmp(a,b) strcmp(a,b)
++#define yaffs_SumCompare(x, y) ((x) == (y))
++#define yaffs_strcmp(a, b) strcmp(a, b)
+ 
+ #else
+ /* Should have specified a configuration type */
+@@ -178,10 +194,10 @@ extern unsigned int yaffs_wr_attempts;
+ #define YAFFS_TRACE_ALWAYS		0xF0000000
+ 
+ 
+-#define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0)
++#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0)
+ 
+-#ifndef CONFIG_YAFFS_WINCE
+-#define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__))
++#ifndef YBUG
++#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0)
+ #endif
+ 
+ #endif
diff --git a/target/linux/generic/patches-2.6.38/511-yaffs-git-2010-10-20.patch b/target/linux/generic/patches-2.6.38/511-yaffs-git-2010-10-20.patch
new file mode 100644
index 0000000000..c83066e99d
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/511-yaffs-git-2010-10-20.patch
@@ -0,0 +1,27068 @@
+--- a/fs/Kconfig
++++ b/fs/Kconfig
+@@ -35,7 +35,6 @@ source "fs/gfs2/Kconfig"
+ source "fs/ocfs2/Kconfig"
+ source "fs/btrfs/Kconfig"
+ source "fs/nilfs2/Kconfig"
+-source "fs/yaffs2/Kconfig"
+ 
+ endif # BLOCK
+ 
+@@ -176,6 +175,10 @@ source "fs/hfsplus/Kconfig"
+ source "fs/befs/Kconfig"
+ source "fs/bfs/Kconfig"
+ source "fs/efs/Kconfig"
++
++# Patched by YAFFS
++source "fs/yaffs2/Kconfig"
++
+ source "fs/jffs2/Kconfig"
+ # UBIFS File system configuration
+ source "fs/ubifs/Kconfig"
+--- a/fs/Makefile
++++ b/fs/Makefile
+@@ -122,5 +122,6 @@ obj-$(CONFIG_BTRFS_FS)		+= btrfs/
+ obj-$(CONFIG_GFS2_FS)           += gfs2/
+ obj-$(CONFIG_EXOFS_FS)          += exofs/
+ obj-$(CONFIG_CEPH_FS)		+= ceph/
+-obj-$(CONFIG_YAFFS_FS)		+= yaffs2/
+ 
++# Patched by YAFFS
++obj-$(CONFIG_YAFFS_FS)		+= yaffs2/
+--- a/fs/yaffs2/devextras.h
++++ b/fs/yaffs2/devextras.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -24,6 +24,8 @@
+ #define __EXTRAS_H__
+ 
+ 
++#include "yportenv.h"
++
+ #if !(defined __KERNEL__)
+ 
+ /* Definition of types */
+@@ -33,103 +35,6 @@ typedef unsigned __u32;
+ 
+ #endif
+ 
+-/*
+- * This is a simple doubly linked list implementation that matches the
+- * way the Linux kernel doubly linked list implementation works.
+- */
+-
+-struct ylist_head {
+-	struct ylist_head *next; /* next in chain */
+-	struct ylist_head *prev; /* previous in chain */
+-};
+-
+-
+-/* Initialise a static list */
+-#define YLIST_HEAD(name) \
+-struct ylist_head name = { &(name), &(name)}
+-
+-
+-
+-/* Initialise a list head to an empty list */
+-#define YINIT_LIST_HEAD(p) \
+-do { \
+-	(p)->next = (p);\
+-	(p)->prev = (p); \
+-} while (0)
+-
+-
+-/* Add an element to a list */
+-static __inline__ void ylist_add(struct ylist_head *newEntry,
+-				struct ylist_head *list)
+-{
+-	struct ylist_head *listNext = list->next;
+-
+-	list->next = newEntry;
+-	newEntry->prev = list;
+-	newEntry->next = listNext;
+-	listNext->prev = newEntry;
+-
+-}
+-
+-static __inline__ void ylist_add_tail(struct ylist_head *newEntry,
+-				 struct ylist_head *list)
+-{
+-	struct ylist_head *listPrev = list->prev;
+-
+-	list->prev = newEntry;
+-	newEntry->next = list;
+-	newEntry->prev = listPrev;
+-	listPrev->next = newEntry;
+-
+-}
+-
+-
+-/* Take an element out of its current list, with or without
+- * reinitialising the links.of the entry*/
+-static __inline__ void ylist_del(struct ylist_head *entry)
+-{
+-	struct ylist_head *listNext = entry->next;
+-	struct ylist_head *listPrev = entry->prev;
+-
+-	listNext->prev = listPrev;
+-	listPrev->next = listNext;
+-
+-}
+-
+-static __inline__ void ylist_del_init(struct ylist_head *entry)
+-{
+-	ylist_del(entry);
+-	entry->next = entry->prev = entry;
+-}
+-
+-
+-/* Test if the list is empty */
+-static __inline__ int ylist_empty(struct ylist_head *entry)
+-{
+-	return (entry->next == entry);
+-}
+-
+-
+-/* ylist_entry takes a pointer to a list entry and offsets it to that
+- * we can find a pointer to the object it is embedded in.
+- */
+-
+-
+-#define ylist_entry(entry, type, member) \
+-	((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member)))
+-
+-
+-/* ylist_for_each and list_for_each_safe  iterate over lists.
+- * ylist_for_each_safe uses temporary storage to make the list delete safe
+- */
+-
+-#define ylist_for_each(itervar, list) \
+-	for (itervar = (list)->next; itervar != (list); itervar = itervar->next)
+-
+-#define ylist_for_each_safe(itervar, saveVar, list) \
+-	for (itervar = (list)->next, saveVar = (list)->next->next; \
+-		itervar != (list); itervar = saveVar, saveVar = saveVar->next)
+-
+ 
+ #if !(defined __KERNEL__)
+ 
+--- a/fs/yaffs2/Kconfig
++++ b/fs/yaffs2/Kconfig
+@@ -90,23 +90,15 @@ config YAFFS_AUTO_YAFFS2
+ 
+ 	  If unsure, say Y.
+ 
+-config YAFFS_DISABLE_LAZY_LOAD
+-	bool "Disable lazy loading"
+-	depends on YAFFS_YAFFS2
++config YAFFS_DISABLE_TAGS_ECC
++	bool "Disable YAFFS from doing ECC on tags by default"
++	depends on YAFFS_FS && YAFFS_YAFFS2
+ 	default n
+ 	help
+-	  "Lazy loading" defers loading file details until they are
+-	  required. This saves mount time, but makes the first look-up
+-	  a bit longer.
+-
+-	  Lazy loading will only happen if enabled by this option being 'n'
+-	  and if the appropriate tags are available, else yaffs2 will
+-	  automatically fall back to immediate loading and do the right
+-	  thing.
+-
+-	  Lazy laoding will be required by checkpointing.
+-
+-	  Setting this to 'y' will disable lazy loading.
++	  This defaults Yaffs to using its own ECC calculations on tags instead of
++	  just relying on the MTD.
++	  This behavior can also be overridden with tags_ecc_on and
++	  tags_ecc_off mount options.
+ 
+ 	  If unsure, say N.
+ 
+@@ -154,3 +146,45 @@ config YAFFS_SHORT_NAMES_IN_RAM
+ 	  but makes look-ups faster.
+ 
+ 	  If unsure, say Y.
++
++config YAFFS_EMPTY_LOST_AND_FOUND
++	bool "Empty lost and found on boot"
++	depends on YAFFS_FS
++	default n
++	help
++	  If this is enabled then the contents of lost and found is
++	  automatically dumped at mount.
++
++	  If unsure, say N.
++
++config YAFFS_DISABLE_BLOCK_REFRESHING
++	bool "Disable yaffs2 block refreshing"
++	depends on YAFFS_FS
++	default n
++	help
++	 If this is set, then block refreshing is disabled.
++	 Block refreshing infrequently refreshes the oldest block in
++	 a yaffs2 file system. This mechanism helps to refresh flash to
++	 mitigate against data loss. This is particularly useful for MLC.
++
++	  If unsure, say N.
++
++config YAFFS_DISABLE_BACKGROUND
++	bool "Disable yaffs2 background processing"
++	depends on YAFFS_FS
++	default n
++	help
++	 If this is set, then background processing is disabled.
++	 Background processing makes many foreground activities faster.
++
++	  If unsure, say N.
++
++config YAFFS_XATTR
++	bool "Enable yaffs2 xattr support"
++	depends on YAFFS_FS
++	default y
++	help
++	 If this is set then yaffs2 will provide xattr support.
++	 If unsure, say Y.
++
++
+--- a/fs/yaffs2/Makefile
++++ b/fs/yaffs2/Makefile
+@@ -4,7 +4,14 @@
+ 
+ obj-$(CONFIG_YAFFS_FS) += yaffs.o
+ 
+-yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o
+-yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o
++yaffs-y := yaffs_ecc.o yaffs_vfs_glue.o yaffs_guts.o yaffs_checkptrw.o
++yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o
+ yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o
+ yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o
++yaffs-y += yaffs_nameval.o
++yaffs-y += yaffs_allocator.o
++yaffs-y += yaffs_yaffs1.o
++yaffs-y += yaffs_yaffs2.o
++yaffs-y += yaffs_bitmap.o
++yaffs-y += yaffs_verify.o
++
+--- a/fs/yaffs2/moduleconfig.h
++++ b/fs/yaffs2/moduleconfig.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Martin Fouts <Martin.Fouts@palmsource.com>
+@@ -29,25 +29,46 @@
+ /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */
+ /* #define CONFIG_YAFFS_DOES_ECC */
+ 
++/* Default: Selected */
++/* Meaning: Yaffs does its own ECC on tags for packed tags rather than use mtd */
++#define CONFIG_YAFFS_DOES_TAGS_ECC
++
+ /* Default: Not selected */
+ /* Meaning: ECC byte order is 'wrong'.  Only meaningful if */
+ /*          CONFIG_YAFFS_DOES_ECC is set */
+ /* #define CONFIG_YAFFS_ECC_WRONG_ORDER */
+ 
+-/* Default: Selected */
+-/* Meaning: Disables testing whether chunks are erased before writing to them*/
+-#define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK
++/* Default: Not selected */
++/* Meaning: Always test whether chunks are erased before writing to them.
++	    Use during mtd debugging and init. */
++/* #define CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED */
++
++/* Default: Not Selected */
++/* Meaning: At mount automatically empty all files from lost and found. */
++/* This is done to fix an old problem where rmdir was not checking for an */
++/* empty directory. This can also be achieved with a mount option. */
++#define CONFIG_YAFFS_EMPTY_LOST_AND_FOUND
+ 
+ /* Default: Selected */
+ /* Meaning: Cache short names, taking more RAM, but faster look-ups */
+ #define CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+ 
+-/* Default: 10 */
+-/* Meaning: set the count of blocks to reserve for checkpointing */
+-#define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10
++/* Default: Unselected */
++/* Meaning: Select to disable block refreshing. */
++/* Block Refreshing periodically rewrites the oldest block. */
++/* #define CONFIG_DISABLE_BLOCK_REFRESHING */
++
++/* Default: Unselected */
++/* Meaning: Select to disable background processing */
++/* #define CONFIG_DISABLE_BACKGROUND */
++
++
++/* Default: Selected */
++/* Meaning: Enable XATTR support */
++#define CONFIG_YAFFS_XATTR
+ 
+ /*
+-Older-style on-NAND data format has a "pageStatus" byte to record
++Older-style on-NAND data format has a "page_status" byte to record
+ chunk/page state.  This byte is zeroed when the page is discarded.
+ Choose this option if you have existing on-NAND data in this format
+ that you need to continue to support.  New data written also uses the
+@@ -57,7 +78,7 @@ adjusted to use the older-style format.
+ MTD versions in yaffs_mtdif1.c.
+ */
+ /* Default: Not selected */
+-/* Meaning: Use older-style on-NAND data format with pageStatus byte */
++/* Meaning: Use older-style on-NAND data format with page_status byte */
+ /* #define CONFIG_YAFFS_9BYTE_TAGS */
+ 
+ #endif /* YAFFS_OUT_OF_TREE */
+--- /dev/null
++++ b/fs/yaffs2/yaffs_allocator.c
+@@ -0,0 +1,409 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++
++
++#include "yaffs_allocator.h"
++#include "yaffs_guts.h"
++#include "yaffs_trace.h"
++#include "yportenv.h"
++
++#ifdef CONFIG_YAFFS_YMALLOC_ALLOCATOR
++
++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	dev = dev;
++}
++
++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	dev = dev;
++}
++
++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev)
++{
++	return (yaffs_tnode_t *)YMALLOC(dev->tnode_size);
++}
++
++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn)
++{
++	dev = dev;
++	YFREE(tn);
++}
++
++void yaffs_init_raw_objs(yaffs_dev_t *dev)
++{
++	dev = dev;
++}
++
++void yaffs_deinit_raw_objs(yaffs_dev_t *dev)
++{
++	dev = dev;
++}
++
++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev)
++{
++	dev = dev;
++	return (yaffs_obj_t *) YMALLOC(sizeof(yaffs_obj_t));
++}
++
++
++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj)
++{
++
++	dev = dev;
++	YFREE(obj);
++}
++
++#else
++
++struct yaffs_tnode_list {
++	struct yaffs_tnode_list *next;
++	yaffs_tnode_t *tnodes;
++};
++
++typedef struct yaffs_tnode_list yaffs_tnodelist_t;
++
++struct yaffs_obj_tList_struct {
++	yaffs_obj_t *objects;
++	struct yaffs_obj_tList_struct *next;
++};
++
++typedef struct yaffs_obj_tList_struct yaffs_obj_tList;
++
++
++struct yaffs_AllocatorStruct {
++	int n_tnodesCreated;
++	yaffs_tnode_t *freeTnodes;
++	int nFreeTnodes;
++	yaffs_tnodelist_t *allocatedTnodeList;
++
++	int n_objCreated;
++	yaffs_obj_t *freeObjects;
++	int nFreeObjects;
++
++	yaffs_obj_tList *allocatedObjectList;
++};
++
++typedef struct yaffs_AllocatorStruct yaffs_Allocator;
++
++
++static void yaffs_deinit_raw_tnodes(yaffs_dev_t *dev)
++{
++
++	yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator;
++
++	yaffs_tnodelist_t *tmp;
++
++	if(!allocator){
++		YBUG();
++		return;
++	}
++
++	while (allocator->allocatedTnodeList) {
++		tmp = allocator->allocatedTnodeList->next;
++
++		YFREE(allocator->allocatedTnodeList->tnodes);
++		YFREE(allocator->allocatedTnodeList);
++		allocator->allocatedTnodeList = tmp;
++
++	}
++
++	allocator->freeTnodes = NULL;
++	allocator->nFreeTnodes = 0;
++	allocator->n_tnodesCreated = 0;
++}
++
++static void yaffs_init_raw_tnodes(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++
++	if(allocator){
++		allocator->allocatedTnodeList = NULL;
++		allocator->freeTnodes = NULL;
++		allocator->nFreeTnodes = 0;
++		allocator->n_tnodesCreated = 0;
++	} else
++		YBUG();
++}
++
++static int yaffs_create_tnodes(yaffs_dev_t *dev, int n_tnodes)
++{
++	yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator;
++	int i;
++	yaffs_tnode_t *newTnodes;
++	__u8 *mem;
++	yaffs_tnode_t *curr;
++	yaffs_tnode_t *next;
++	yaffs_tnodelist_t *tnl;
++
++	if(!allocator){
++		YBUG();
++		return YAFFS_FAIL;
++	}
++
++	if (n_tnodes < 1)
++		return YAFFS_OK;
++
++
++	/* make these things */
++
++	newTnodes = YMALLOC(n_tnodes * dev->tnode_size);
++	mem = (__u8 *)newTnodes;
++
++	if (!newTnodes) {
++		T(YAFFS_TRACE_ERROR,
++			(TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
++		return YAFFS_FAIL;
++	}
++
++	/* New hookup for wide tnodes */
++	for (i = 0; i < n_tnodes - 1; i++) {
++		curr = (yaffs_tnode_t *) &mem[i * dev->tnode_size];
++		next = (yaffs_tnode_t *) &mem[(i+1) * dev->tnode_size];
++		curr->internal[0] = next;
++	}
++
++	curr = (yaffs_tnode_t *) &mem[(n_tnodes - 1) * dev->tnode_size];
++	curr->internal[0] = allocator->freeTnodes;
++	allocator->freeTnodes = (yaffs_tnode_t *)mem;
++
++	allocator->nFreeTnodes += n_tnodes;
++	allocator->n_tnodesCreated += n_tnodes;
++
++	/* Now add this bunch of tnodes to a list for freeing up.
++	 * NB If we can't add this to the management list it isn't fatal
++	 * but it just means we can't free this bunch of tnodes later.
++	 */
++
++	tnl = YMALLOC(sizeof(yaffs_tnodelist_t));
++	if (!tnl) {
++		T(YAFFS_TRACE_ERROR,
++		  (TSTR
++		   ("yaffs: Could not add tnodes to management list" TENDSTR)));
++		   return YAFFS_FAIL;
++	} else {
++		tnl->tnodes = newTnodes;
++		tnl->next = allocator->allocatedTnodeList;
++		allocator->allocatedTnodeList = tnl;
++	}
++
++	T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR)));
++
++	return YAFFS_OK;
++}
++
++
++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator;
++	yaffs_tnode_t *tn = NULL;
++
++	if(!allocator){
++		YBUG();
++		return NULL;
++	}
++
++	/* If there are none left make more */
++	if (!allocator->freeTnodes)
++		yaffs_create_tnodes(dev, YAFFS_ALLOCATION_NTNODES);
++
++	if (allocator->freeTnodes) {
++		tn = allocator->freeTnodes;
++		allocator->freeTnodes = allocator->freeTnodes->internal[0];
++		allocator->nFreeTnodes--;
++	}
++
++	return tn;
++}
++
++/* FreeTnode frees up a tnode and puts it back on the free list */
++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++
++	if(!allocator){
++		YBUG();
++		return;
++	}
++
++	if (tn) {
++		tn->internal[0] = allocator->freeTnodes;
++		allocator->freeTnodes = tn;
++		allocator->nFreeTnodes++;
++	}
++	dev->checkpoint_blocks_required = 0; /* force recalculation*/
++}
++
++
++
++static void yaffs_init_raw_objs(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++
++	if(allocator) {
++		allocator->allocatedObjectList = NULL;
++		allocator->freeObjects = NULL;
++		allocator->nFreeObjects = 0;
++	} else
++		YBUG();
++}
++
++static void yaffs_deinit_raw_objs(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++	yaffs_obj_tList *tmp;
++
++	if(!allocator){
++		YBUG();
++		return;
++	}
++
++	while (allocator->allocatedObjectList) {
++		tmp = allocator->allocatedObjectList->next;
++		YFREE(allocator->allocatedObjectList->objects);
++		YFREE(allocator->allocatedObjectList);
++
++		allocator->allocatedObjectList = tmp;
++	}
++
++	allocator->freeObjects = NULL;
++	allocator->nFreeObjects = 0;
++	allocator->n_objCreated = 0;
++}
++
++
++static int yaffs_create_free_objs(yaffs_dev_t *dev, int n_obj)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++
++	int i;
++	yaffs_obj_t *newObjects;
++	yaffs_obj_tList *list;
++
++	if(!allocator){
++		YBUG();
++		return YAFFS_FAIL;
++	}
++
++	if (n_obj < 1)
++		return YAFFS_OK;
++
++	/* make these things */
++	newObjects = YMALLOC(n_obj * sizeof(yaffs_obj_t));
++	list = YMALLOC(sizeof(yaffs_obj_tList));
++
++	if (!newObjects || !list) {
++		if (newObjects){
++			YFREE(newObjects);
++			newObjects = NULL;
++		}
++		if (list){
++			YFREE(list);
++			list = NULL;
++		}
++		T(YAFFS_TRACE_ALLOCATE,
++		  (TSTR("yaffs: Could not allocate more objects" TENDSTR)));
++		return YAFFS_FAIL;
++	}
++
++	/* Hook them into the free list */
++	for (i = 0; i < n_obj - 1; i++) {
++		newObjects[i].siblings.next =
++				(struct ylist_head *)(&newObjects[i + 1]);
++	}
++
++	newObjects[n_obj - 1].siblings.next = (void *)allocator->freeObjects;
++	allocator->freeObjects = newObjects;
++	allocator->nFreeObjects += n_obj;
++	allocator->n_objCreated += n_obj;
++
++	/* Now add this bunch of Objects to a list for freeing up. */
++
++	list->objects = newObjects;
++	list->next = allocator->allocatedObjectList;
++	allocator->allocatedObjectList = list;
++
++	return YAFFS_OK;
++}
++
++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev)
++{
++	yaffs_obj_t *obj = NULL;
++	yaffs_Allocator *allocator = dev->allocator;
++
++	if(!allocator) {
++		YBUG();
++		return obj;
++	}
++
++	/* If there are none left make more */
++	if (!allocator->freeObjects)
++		yaffs_create_free_objs(dev, YAFFS_ALLOCATION_NOBJECTS);
++
++	if (allocator->freeObjects) {
++		obj = allocator->freeObjects;
++		allocator->freeObjects =
++			(yaffs_obj_t *) (allocator->freeObjects->siblings.next);
++		allocator->nFreeObjects--;
++	}
++
++	return obj;
++}
++
++
++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj)
++{
++
++	yaffs_Allocator *allocator = dev->allocator;
++
++	if(!allocator)
++		YBUG();
++	else {
++		/* Link into the free list. */
++		obj->siblings.next = (struct ylist_head *)(allocator->freeObjects);
++		allocator->freeObjects = obj;
++		allocator->nFreeObjects++;
++	}
++}
++
++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	if(dev->allocator){
++		yaffs_deinit_raw_tnodes(dev);
++		yaffs_deinit_raw_objs(dev);
++
++		YFREE(dev->allocator);
++		dev->allocator=NULL;
++	} else
++		YBUG();
++}
++
++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator;
++
++	if(!dev->allocator){
++		allocator = YMALLOC(sizeof(yaffs_Allocator));
++		if(allocator){
++			dev->allocator = allocator;
++			yaffs_init_raw_tnodes(dev);
++			yaffs_init_raw_objs(dev);
++		}
++	} else
++		YBUG();
++}
++
++
++#endif
+--- /dev/null
++++ b/fs/yaffs2/yaffs_allocator.h
+@@ -0,0 +1,30 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++
++#ifndef __YAFFS_ALLOCATOR_H__
++#define __YAFFS_ALLOCATOR_H__
++
++#include "yaffs_guts.h"
++
++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev);
++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev);
++
++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev);
++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn);
++
++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev);
++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj);
++
++#endif
+--- /dev/null
++++ b/fs/yaffs2/yaffs_bitmap.c
+@@ -0,0 +1,105 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include "yaffs_bitmap.h"
++#include "yaffs_trace.h"
++/*
++ * Chunk bitmap manipulations
++ */
++
++static Y_INLINE __u8 *yaffs_BlockBits(yaffs_dev_t *dev, int blk)
++{
++	if (blk < dev->internal_start_block || blk > dev->internal_end_block) {
++		T(YAFFS_TRACE_ERROR,
++			(TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
++			blk));
++		YBUG();
++	}
++	return dev->chunk_bits +
++		(dev->chunk_bit_stride * (blk - dev->internal_start_block));
++}
++
++void yaffs_verify_chunk_bit_id(yaffs_dev_t *dev, int blk, int chunk)
++{
++	if (blk < dev->internal_start_block || blk > dev->internal_end_block ||
++			chunk < 0 || chunk >= dev->param.chunks_per_block) {
++		T(YAFFS_TRACE_ERROR,
++		(TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),
++			blk, chunk));
++		YBUG();
++	}
++}
++
++void yaffs_clear_chunk_bits(yaffs_dev_t *dev, int blk)
++{
++	__u8 *blkBits = yaffs_BlockBits(dev, blk);
++
++	memset(blkBits, 0, dev->chunk_bit_stride);
++}
++
++void yaffs_clear_chunk_bit(yaffs_dev_t *dev, int blk, int chunk)
++{
++	__u8 *blkBits = yaffs_BlockBits(dev, blk);
++
++	yaffs_verify_chunk_bit_id(dev, blk, chunk);
++
++	blkBits[chunk / 8] &= ~(1 << (chunk & 7));
++}
++
++void yaffs_set_chunk_bit(yaffs_dev_t *dev, int blk, int chunk)
++{
++	__u8 *blkBits = yaffs_BlockBits(dev, blk);
++
++	yaffs_verify_chunk_bit_id(dev, blk, chunk);
++
++	blkBits[chunk / 8] |= (1 << (chunk & 7));
++}
++
++int yaffs_check_chunk_bit(yaffs_dev_t *dev, int blk, int chunk)
++{
++	__u8 *blkBits = yaffs_BlockBits(dev, blk);
++	yaffs_verify_chunk_bit_id(dev, blk, chunk);
++
++	return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
++}
++
++int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk)
++{
++	__u8 *blkBits = yaffs_BlockBits(dev, blk);
++	int i;
++	for (i = 0; i < dev->chunk_bit_stride; i++) {
++		if (*blkBits)
++			return 1;
++		blkBits++;
++	}
++	return 0;
++}
++
++int yaffs_count_chunk_bits(yaffs_dev_t *dev, int blk)
++{
++	__u8 *blkBits = yaffs_BlockBits(dev, blk);
++	int i;
++	int n = 0;
++	for (i = 0; i < dev->chunk_bit_stride; i++) {
++		__u8 x = *blkBits;
++		while (x) {
++			if (x & 1)
++				n++;
++			x >>= 1;
++		}
++
++		blkBits++;
++	}
++	return n;
++}
++
+--- /dev/null
++++ b/fs/yaffs2/yaffs_bitmap.h
+@@ -0,0 +1,31 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++/*
++ * Chunk bitmap manipulations
++ */
++
++#ifndef __YAFFS_BITMAP_H__
++#define __YAFFS_BITMAP_H__
++
++#include "yaffs_guts.h"
++
++void yaffs_verify_chunk_bit_id(yaffs_dev_t *dev, int blk, int chunk);
++void yaffs_clear_chunk_bits(yaffs_dev_t *dev, int blk);
++void yaffs_clear_chunk_bit(yaffs_dev_t *dev, int blk, int chunk);
++void yaffs_set_chunk_bit(yaffs_dev_t *dev, int blk, int chunk);
++int yaffs_check_chunk_bit(yaffs_dev_t *dev, int blk, int chunk);
++int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk);
++int yaffs_count_chunk_bits(yaffs_dev_t *dev, int blk);
++
++#endif
+--- a/fs/yaffs2/yaffs_checkptrw.c
++++ b/fs/yaffs2/yaffs_checkptrw.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -11,16 +11,12 @@
+  * published by the Free Software Foundation.
+  */
+ 
+-const char *yaffs_checkptrw_c_version =
+-	"$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $";
+-
+-
+ #include "yaffs_checkptrw.h"
+ #include "yaffs_getblockinfo.h"
+ 
+-static int yaffs_CheckpointSpaceOk(yaffs_Device *dev)
++static int yaffs2_checkpt_space_ok(yaffs_dev_t *dev)
+ {
+-	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
++	int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks;
+ 
+ 	T(YAFFS_TRACE_CHECKPOINT,
+ 		(TSTR("checkpt blocks available = %d" TENDSTR),
+@@ -30,53 +26,56 @@ static int yaffs_CheckpointSpaceOk(yaffs
+ }
+ 
+ 
+-static int yaffs_CheckpointErase(yaffs_Device *dev)
++static int yaffs_checkpt_erase(yaffs_dev_t *dev)
+ {
+ 	int i;
+ 
+-	if (!dev->eraseBlockInNAND)
++	if (!dev->param.erase_fn)
+ 		return 0;
+ 	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR),
+-		dev->internalStartBlock, dev->internalEndBlock));
++		dev->internal_start_block, dev->internal_end_block));
+ 
+-	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
+-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
+-		if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) {
++	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
++		yaffs_block_info_t *bi = yaffs_get_block_info(dev, i);
++		if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) {
+ 			T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i));
+-			if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) {
+-				bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
+-				dev->nErasedBlocks++;
+-				dev->nFreeChunks += dev->nChunksPerBlock;
++
++			dev->n_erasures++;
++
++			if (dev->param.erase_fn(dev, i - dev->block_offset /* realign */)) {
++				bi->block_state = YAFFS_BLOCK_STATE_EMPTY;
++				dev->n_erased_blocks++;
++				dev->n_free_chunks += dev->param.chunks_per_block;
+ 			} else {
+-				dev->markNANDBlockBad(dev, i);
+-				bi->blockState = YAFFS_BLOCK_STATE_DEAD;
++				dev->param.bad_block_fn(dev, i);
++				bi->block_state = YAFFS_BLOCK_STATE_DEAD;
+ 			}
+ 		}
+ 	}
+ 
+-	dev->blocksInCheckpoint = 0;
++	dev->blocks_in_checkpt = 0;
+ 
+ 	return 1;
+ }
+ 
+ 
+-static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev)
++static void yaffs2_checkpt_find_erased_block(yaffs_dev_t *dev)
+ {
+ 	int  i;
+-	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
++	int blocksAvailable = dev->n_erased_blocks - dev->param.n_reserved_blocks;
+ 	T(YAFFS_TRACE_CHECKPOINT,
+ 		(TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR),
+-		dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock));
++		dev->n_erased_blocks, dev->param.n_reserved_blocks, blocksAvailable, dev->checkpt_next_block));
+ 
+-	if (dev->checkpointNextBlock >= 0 &&
+-			dev->checkpointNextBlock <= dev->internalEndBlock &&
++	if (dev->checkpt_next_block >= 0 &&
++			dev->checkpt_next_block <= dev->internal_end_block &&
+ 			blocksAvailable > 0) {
+ 
+-		for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) {
+-			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
+-			if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) {
+-				dev->checkpointNextBlock = i + 1;
+-				dev->checkpointCurrentBlock = i;
++		for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) {
++			yaffs_block_info_t *bi = yaffs_get_block_info(dev, i);
++			if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) {
++				dev->checkpt_next_block = i + 1;
++				dev->checkpt_cur_block = i;
+ 				T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i));
+ 				return;
+ 			}
+@@ -84,34 +83,34 @@ static void yaffs_CheckpointFindNextEras
+ 	}
+ 	T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR)));
+ 
+-	dev->checkpointNextBlock = -1;
+-	dev->checkpointCurrentBlock = -1;
++	dev->checkpt_next_block = -1;
++	dev->checkpt_cur_block = -1;
+ }
+ 
+-static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev)
++static void yaffs2_checkpt_find_block(yaffs_dev_t *dev)
+ {
+ 	int  i;
+-	yaffs_ExtendedTags tags;
++	yaffs_ext_tags tags;
+ 
+ 	T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start:  blocks %d next %d" TENDSTR),
+-		dev->blocksInCheckpoint, dev->checkpointNextBlock));
++		dev->blocks_in_checkpt, dev->checkpt_next_block));
+ 
+-	if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks)
+-		for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) {
+-			int chunk = i * dev->nChunksPerBlock;
+-			int realignedChunk = chunk - dev->chunkOffset;
++	if (dev->blocks_in_checkpt < dev->checkpt_max_blocks)
++		for (i = dev->checkpt_next_block; i <= dev->internal_end_block; i++) {
++			int chunk = i * dev->param.chunks_per_block;
++			int realignedChunk = chunk - dev->chunk_offset;
+ 
+-			dev->readChunkWithTagsFromNAND(dev, realignedChunk,
++			dev->param.read_chunk_tags_fn(dev, realignedChunk,
+ 					NULL, &tags);
+ 			T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR),
+-				i, tags.objectId, tags.sequenceNumber, tags.eccResult));
++				i, tags.obj_id, tags.seq_number, tags.ecc_result));
+ 
+-			if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) {
++			if (tags.seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) {
+ 				/* Right kind of block */
+-				dev->checkpointNextBlock = tags.objectId;
+-				dev->checkpointCurrentBlock = i;
+-				dev->checkpointBlockList[dev->blocksInCheckpoint] = i;
+-				dev->blocksInCheckpoint++;
++				dev->checkpt_next_block = tags.obj_id;
++				dev->checkpt_cur_block = i;
++				dev->checkpt_block_list[dev->blocks_in_checkpt] = i;
++				dev->blocks_in_checkpt++;
+ 				T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i));
+ 				return;
+ 			}
+@@ -119,122 +118,127 @@ static void yaffs_CheckpointFindNextChec
+ 
+ 	T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR)));
+ 
+-	dev->checkpointNextBlock = -1;
+-	dev->checkpointCurrentBlock = -1;
++	dev->checkpt_next_block = -1;
++	dev->checkpt_cur_block = -1;
+ }
+ 
+ 
+-int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting)
++int yaffs2_checkpt_open(yaffs_dev_t *dev, int forWriting)
+ {
+ 
++
++	dev->checkpt_open_write = forWriting;
++
+ 	/* Got the functions we need? */
+-	if (!dev->writeChunkWithTagsToNAND ||
+-			!dev->readChunkWithTagsFromNAND ||
+-			!dev->eraseBlockInNAND ||
+-			!dev->markNANDBlockBad)
++	if (!dev->param.write_chunk_tags_fn ||
++		!dev->param.read_chunk_tags_fn ||
++		!dev->param.erase_fn ||
++		!dev->param.bad_block_fn)
+ 		return 0;
+ 
+-	if (forWriting && !yaffs_CheckpointSpaceOk(dev))
++	if (forWriting && !yaffs2_checkpt_space_ok(dev))
+ 		return 0;
+ 
+-	if (!dev->checkpointBuffer)
+-		dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk);
+-	if (!dev->checkpointBuffer)
++	if (!dev->checkpt_buffer)
++		dev->checkpt_buffer = YMALLOC_DMA(dev->param.total_bytes_per_chunk);
++	if (!dev->checkpt_buffer)
+ 		return 0;
+ 
+ 
+-	dev->checkpointPageSequence = 0;
+-
+-	dev->checkpointOpenForWrite = forWriting;
+-
+-	dev->checkpointByteCount = 0;
+-	dev->checkpointSum = 0;
+-	dev->checkpointXor = 0;
+-	dev->checkpointCurrentBlock = -1;
+-	dev->checkpointCurrentChunk = -1;
+-	dev->checkpointNextBlock = dev->internalStartBlock;
++	dev->checkpt_page_seq = 0;
++	dev->checkpt_byte_count = 0;
++	dev->checkpt_sum = 0;
++	dev->checkpt_xor = 0;
++	dev->checkpt_cur_block = -1;
++	dev->checkpt_cur_chunk = -1;
++	dev->checkpt_next_block = dev->internal_start_block;
+ 
+ 	/* Erase all the blocks in the checkpoint area */
+ 	if (forWriting) {
+-		memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk);
+-		dev->checkpointByteOffset = 0;
+-		return yaffs_CheckpointErase(dev);
++		memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk);
++		dev->checkpt_byte_offs = 0;
++		return yaffs_checkpt_erase(dev);
+ 	} else {
+ 		int i;
+ 		/* Set to a value that will kick off a read */
+-		dev->checkpointByteOffset = dev->nDataBytesPerChunk;
++		dev->checkpt_byte_offs = dev->data_bytes_per_chunk;
+ 		/* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully)
+ 		 * going to be way more than we need */
+-		dev->blocksInCheckpoint = 0;
+-		dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2;
+-		dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks);
+-		for (i = 0; i < dev->checkpointMaxBlocks; i++)
+-			dev->checkpointBlockList[i] = -1;
++		dev->blocks_in_checkpt = 0;
++		dev->checkpt_max_blocks = (dev->internal_end_block - dev->internal_start_block)/16 + 2;
++		dev->checkpt_block_list = YMALLOC(sizeof(int) * dev->checkpt_max_blocks);
++		if(!dev->checkpt_block_list)
++			return 0;
++
++		for (i = 0; i < dev->checkpt_max_blocks; i++)
++			dev->checkpt_block_list[i] = -1;
+ 	}
+ 
+ 	return 1;
+ }
+ 
+-int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum)
++int yaffs2_get_checkpt_sum(yaffs_dev_t *dev, __u32 *sum)
+ {
+ 	__u32 compositeSum;
+-	compositeSum =  (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF);
++	compositeSum =  (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xFF);
+ 	*sum = compositeSum;
+ 	return 1;
+ }
+ 
+-static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
++static int yaffs2_checkpt_flush_buffer(yaffs_dev_t *dev)
+ {
+ 	int chunk;
+ 	int realignedChunk;
+ 
+-	yaffs_ExtendedTags tags;
++	yaffs_ext_tags tags;
+ 
+-	if (dev->checkpointCurrentBlock < 0) {
+-		yaffs_CheckpointFindNextErasedBlock(dev);
+-		dev->checkpointCurrentChunk = 0;
++	if (dev->checkpt_cur_block < 0) {
++		yaffs2_checkpt_find_erased_block(dev);
++		dev->checkpt_cur_chunk = 0;
+ 	}
+ 
+-	if (dev->checkpointCurrentBlock < 0)
++	if (dev->checkpt_cur_block < 0)
+ 		return 0;
+ 
+-	tags.chunkDeleted = 0;
+-	tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */
+-	tags.chunkId = dev->checkpointPageSequence + 1;
+-	tags.sequenceNumber =  YAFFS_SEQUENCE_CHECKPOINT_DATA;
+-	tags.byteCount = dev->nDataBytesPerChunk;
+-	if (dev->checkpointCurrentChunk == 0) {
++	tags.is_deleted = 0;
++	tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */
++	tags.chunk_id = dev->checkpt_page_seq + 1;
++	tags.seq_number =  YAFFS_SEQUENCE_CHECKPOINT_DATA;
++	tags.n_bytes = dev->data_bytes_per_chunk;
++	if (dev->checkpt_cur_chunk == 0) {
+ 		/* First chunk we write for the block? Set block state to
+ 		   checkpoint */
+-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock);
+-		bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
+-		dev->blocksInCheckpoint++;
++		yaffs_block_info_t *bi = yaffs_get_block_info(dev, dev->checkpt_cur_block);
++		bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
++		dev->blocks_in_checkpt++;
+ 	}
+ 
+-	chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
++	chunk = dev->checkpt_cur_block * dev->param.chunks_per_block + dev->checkpt_cur_chunk;
+ 
+ 
+ 	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
+-		chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId));
++		chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, tags.obj_id, tags.chunk_id));
+ 
+-	realignedChunk = chunk - dev->chunkOffset;
++	realignedChunk = chunk - dev->chunk_offset;
+ 
+-	dev->writeChunkWithTagsToNAND(dev, realignedChunk,
+-			dev->checkpointBuffer, &tags);
+-	dev->checkpointByteOffset = 0;
+-	dev->checkpointPageSequence++;
+-	dev->checkpointCurrentChunk++;
+-	if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) {
+-		dev->checkpointCurrentChunk = 0;
+-		dev->checkpointCurrentBlock = -1;
++	dev->n_page_writes++;
++
++	dev->param.write_chunk_tags_fn(dev, realignedChunk,
++			dev->checkpt_buffer, &tags);
++	dev->checkpt_byte_offs = 0;
++	dev->checkpt_page_seq++;
++	dev->checkpt_cur_chunk++;
++	if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) {
++		dev->checkpt_cur_chunk = 0;
++		dev->checkpt_cur_block = -1;
+ 	}
+-	memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk);
++	memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk);
+ 
+ 	return 1;
+ }
+ 
+ 
+-int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes)
++int yaffs2_checkpt_wr(yaffs_dev_t *dev, const void *data, int n_bytes)
+ {
+ 	int i = 0;
+ 	int ok = 1;
+@@ -244,36 +248,36 @@ int yaffs_CheckpointWrite(yaffs_Device *
+ 
+ 
+ 
+-	if (!dev->checkpointBuffer)
++	if (!dev->checkpt_buffer)
+ 		return 0;
+ 
+-	if (!dev->checkpointOpenForWrite)
++	if (!dev->checkpt_open_write)
+ 		return -1;
+ 
+-	while (i < nBytes && ok) {
+-		dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes;
+-		dev->checkpointSum += *dataBytes;
+-		dev->checkpointXor ^= *dataBytes;
++	while (i < n_bytes && ok) {
++		dev->checkpt_buffer[dev->checkpt_byte_offs] = *dataBytes;
++		dev->checkpt_sum += *dataBytes;
++		dev->checkpt_xor ^= *dataBytes;
+ 
+-		dev->checkpointByteOffset++;
++		dev->checkpt_byte_offs++;
+ 		i++;
+ 		dataBytes++;
+-		dev->checkpointByteCount++;
++		dev->checkpt_byte_count++;
+ 
+ 
+-		if (dev->checkpointByteOffset < 0 ||
+-		   dev->checkpointByteOffset >= dev->nDataBytesPerChunk)
+-			ok = yaffs_CheckpointFlushBuffer(dev);
++		if (dev->checkpt_byte_offs < 0 ||
++		   dev->checkpt_byte_offs >= dev->data_bytes_per_chunk)
++			ok = yaffs2_checkpt_flush_buffer(dev);
+ 	}
+ 
+ 	return i;
+ }
+ 
+-int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes)
++int yaffs2_checkpt_rd(yaffs_dev_t *dev, void *data, int n_bytes)
+ {
+ 	int i = 0;
+ 	int ok = 1;
+-	yaffs_ExtendedTags tags;
++	yaffs_ext_tags tags;
+ 
+ 
+ 	int chunk;
+@@ -281,113 +285,116 @@ int yaffs_CheckpointRead(yaffs_Device *d
+ 
+ 	__u8 *dataBytes = (__u8 *)data;
+ 
+-	if (!dev->checkpointBuffer)
++	if (!dev->checkpt_buffer)
+ 		return 0;
+ 
+-	if (dev->checkpointOpenForWrite)
++	if (dev->checkpt_open_write)
+ 		return -1;
+ 
+-	while (i < nBytes && ok) {
++	while (i < n_bytes && ok) {
+ 
+ 
+-		if (dev->checkpointByteOffset < 0 ||
+-			dev->checkpointByteOffset >= dev->nDataBytesPerChunk) {
++		if (dev->checkpt_byte_offs < 0 ||
++			dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) {
+ 
+-			if (dev->checkpointCurrentBlock < 0) {
+-				yaffs_CheckpointFindNextCheckpointBlock(dev);
+-				dev->checkpointCurrentChunk = 0;
++			if (dev->checkpt_cur_block < 0) {
++				yaffs2_checkpt_find_block(dev);
++				dev->checkpt_cur_chunk = 0;
+ 			}
+ 
+-			if (dev->checkpointCurrentBlock < 0)
++			if (dev->checkpt_cur_block < 0)
+ 				ok = 0;
+ 			else {
+-				chunk = dev->checkpointCurrentBlock *
+-					dev->nChunksPerBlock +
+-					dev->checkpointCurrentChunk;
+-
+-				realignedChunk = chunk - dev->chunkOffset;
++				chunk = dev->checkpt_cur_block *
++					dev->param.chunks_per_block +
++					dev->checkpt_cur_chunk;
++
++				realignedChunk = chunk - dev->chunk_offset;
++				
++				dev->n_page_reads++;
+ 
+ 				/* read in the next chunk */
+ 				/* printf("read checkpoint page %d\n",dev->checkpointPage); */
+-				dev->readChunkWithTagsFromNAND(dev,
++				dev->param.read_chunk_tags_fn(dev,
+ 						realignedChunk,
+-						dev->checkpointBuffer,
++						dev->checkpt_buffer,
+ 						&tags);
+ 
+-				if (tags.chunkId != (dev->checkpointPageSequence + 1) ||
+-					tags.eccResult > YAFFS_ECC_RESULT_FIXED ||
+-					tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA)
++				if (tags.chunk_id != (dev->checkpt_page_seq + 1) ||
++					tags.ecc_result > YAFFS_ECC_RESULT_FIXED ||
++					tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA)
+ 					ok = 0;
+ 
+-				dev->checkpointByteOffset = 0;
+-				dev->checkpointPageSequence++;
+-				dev->checkpointCurrentChunk++;
++				dev->checkpt_byte_offs = 0;
++				dev->checkpt_page_seq++;
++				dev->checkpt_cur_chunk++;
+ 
+-				if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock)
+-					dev->checkpointCurrentBlock = -1;
++				if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block)
++					dev->checkpt_cur_block = -1;
+ 			}
+ 		}
+ 
+ 		if (ok) {
+-			*dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset];
+-			dev->checkpointSum += *dataBytes;
+-			dev->checkpointXor ^= *dataBytes;
+-			dev->checkpointByteOffset++;
++			*dataBytes = dev->checkpt_buffer[dev->checkpt_byte_offs];
++			dev->checkpt_sum += *dataBytes;
++			dev->checkpt_xor ^= *dataBytes;
++			dev->checkpt_byte_offs++;
+ 			i++;
+ 			dataBytes++;
+-			dev->checkpointByteCount++;
++			dev->checkpt_byte_count++;
+ 		}
+ 	}
+ 
+ 	return 	i;
+ }
+ 
+-int yaffs_CheckpointClose(yaffs_Device *dev)
++int yaffs_checkpt_close(yaffs_dev_t *dev)
+ {
+ 
+-	if (dev->checkpointOpenForWrite) {
+-		if (dev->checkpointByteOffset != 0)
+-			yaffs_CheckpointFlushBuffer(dev);
+-	} else {
++	if (dev->checkpt_open_write) {
++		if (dev->checkpt_byte_offs != 0)
++			yaffs2_checkpt_flush_buffer(dev);
++	} else if(dev->checkpt_block_list){
+ 		int i;
+-		for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) {
+-			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]);
+-			if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
+-				bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
++		for (i = 0; i < dev->blocks_in_checkpt && dev->checkpt_block_list[i] >= 0; i++) {
++			int blk = dev->checkpt_block_list[i];
++			yaffs_block_info_t *bi = NULL;
++			if( dev->internal_start_block <= blk && blk <= dev->internal_end_block)
++				bi = yaffs_get_block_info(dev, blk);
++			if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY)
++				bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT;
+ 			else {
+ 				/* Todo this looks odd... */
+ 			}
+ 		}
+-		YFREE(dev->checkpointBlockList);
+-		dev->checkpointBlockList = NULL;
++		YFREE(dev->checkpt_block_list);
++		dev->checkpt_block_list = NULL;
+ 	}
+ 
+-	dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock;
+-	dev->nErasedBlocks -= dev->blocksInCheckpoint;
++	dev->n_free_chunks -= dev->blocks_in_checkpt * dev->param.chunks_per_block;
++	dev->n_erased_blocks -= dev->blocks_in_checkpt;
+ 
+ 
+ 	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR),
+-			dev->checkpointByteCount));
++			dev->checkpt_byte_count));
+ 
+-	if (dev->checkpointBuffer) {
++	if (dev->checkpt_buffer) {
+ 		/* free the buffer */
+-		YFREE(dev->checkpointBuffer);
+-		dev->checkpointBuffer = NULL;
++		YFREE(dev->checkpt_buffer);
++		dev->checkpt_buffer = NULL;
+ 		return 1;
+ 	} else
+ 		return 0;
+ }
+ 
+-int yaffs_CheckpointInvalidateStream(yaffs_Device *dev)
++int yaffs2_checkpt_invalidate_stream(yaffs_dev_t *dev)
+ {
+-	/* Erase the first checksum block */
+-
+-	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR)));
++	/* Erase the checkpoint data */
+ 
+-	if (!yaffs_CheckpointSpaceOk(dev))
+-		return 0;
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate of %d blocks"TENDSTR),
++		dev->blocks_in_checkpt));
+ 
+-	return yaffs_CheckpointErase(dev);
++	return yaffs_checkpt_erase(dev);
+ }
+ 
+ 
+--- a/fs/yaffs2/yaffs_checkptrw.h
++++ b/fs/yaffs2/yaffs_checkptrw.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -18,18 +18,17 @@
+ 
+ #include "yaffs_guts.h"
+ 
+-int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting);
++int yaffs2_checkpt_open(yaffs_dev_t *dev, int forWriting);
+ 
+-int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes);
++int yaffs2_checkpt_wr(yaffs_dev_t *dev, const void *data, int n_bytes);
+ 
+-int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes);
++int yaffs2_checkpt_rd(yaffs_dev_t *dev, void *data, int n_bytes);
+ 
+-int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum);
++int yaffs2_get_checkpt_sum(yaffs_dev_t *dev, __u32 *sum);
+ 
+-int yaffs_CheckpointClose(yaffs_Device *dev);
++int yaffs_checkpt_close(yaffs_dev_t *dev);
+ 
+-int yaffs_CheckpointInvalidateStream(yaffs_Device *dev);
++int yaffs2_checkpt_invalidate_stream(yaffs_dev_t *dev);
+ 
+ 
+ #endif
+-
+--- a/fs/yaffs2/yaffs_ecc.c
++++ b/fs/yaffs2/yaffs_ecc.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -28,9 +28,6 @@
+  * this bytes influence on the line parity.
+  */
+ 
+-const char *yaffs_ecc_c_version =
+-	"$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $";
+-
+ #include "yportenv.h"
+ 
+ #include "yaffs_ecc.h"
+@@ -72,7 +69,7 @@ static const unsigned char column_parity
+ 
+ /* Count the bits in an unsigned char or a U32 */
+ 
+-static int yaffs_CountBits(unsigned char x)
++static int yaffs_count_bits(unsigned char x)
+ {
+ 	int r = 0;
+ 	while (x) {
+@@ -83,7 +80,7 @@ static int yaffs_CountBits(unsigned char
+ 	return r;
+ }
+ 
+-static int yaffs_CountBits32(unsigned x)
++static int yaffs_count_bits32(unsigned x)
+ {
+ 	int r = 0;
+ 	while (x) {
+@@ -95,7 +92,7 @@ static int yaffs_CountBits32(unsigned x)
+ }
+ 
+ /* Calculate the ECC for a 256-byte block of data */
+-void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc)
++void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc)
+ {
+ 	unsigned int i;
+ 
+@@ -166,7 +163,7 @@ void yaffs_ECCCalculate(const unsigned c
+ 
+ /* Correct the ECC on a 256 byte block of data */
+ 
+-int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
++int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc,
+ 		     const unsigned char *test_ecc)
+ {
+ 	unsigned char d0, d1, d2;	/* deltas */
+@@ -226,9 +223,9 @@ int yaffs_ECCCorrect(unsigned char *data
+ 		return 1; /* Corrected the error */
+ 	}
+ 
+-	if ((yaffs_CountBits(d0) +
+-	     yaffs_CountBits(d1) +
+-	     yaffs_CountBits(d2)) ==  1) {
++	if ((yaffs_count_bits(d0) +
++	     yaffs_count_bits(d1) +
++	     yaffs_count_bits(d2)) ==  1) {
+ 		/* Reccoverable error in ecc */
+ 
+ 		read_ecc[0] = test_ecc[0];
+@@ -248,7 +245,7 @@ int yaffs_ECCCorrect(unsigned char *data
+ /*
+  * ECCxxxOther does ECC calcs on arbitrary n bytes of data
+  */
+-void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
++void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes,
+ 				yaffs_ECCOther *eccOther)
+ {
+ 	unsigned int i;
+@@ -258,7 +255,7 @@ void yaffs_ECCCalculateOther(const unsig
+ 	unsigned line_parity_prime = 0;
+ 	unsigned char b;
+ 
+-	for (i = 0; i < nBytes; i++) {
++	for (i = 0; i < n_bytes; i++) {
+ 		b = column_parity_table[*data++];
+ 		col_parity ^= b;
+ 
+@@ -275,7 +272,7 @@ void yaffs_ECCCalculateOther(const unsig
+ 	eccOther->lineParityPrime = line_parity_prime;
+ }
+ 
+-int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
++int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes,
+ 			yaffs_ECCOther *read_ecc,
+ 			const yaffs_ECCOther *test_ecc)
+ {
+@@ -304,7 +301,7 @@ int yaffs_ECCCorrectOther(unsigned char
+ 		if (cDelta & 0x02)
+ 			bit |= 0x01;
+ 
+-		if (lDelta >= nBytes)
++		if (lDelta >= n_bytes)
+ 			return -1;
+ 
+ 		data[lDelta] ^= (1 << bit);
+@@ -312,8 +309,8 @@ int yaffs_ECCCorrectOther(unsigned char
+ 		return 1; /* corrected */
+ 	}
+ 
+-	if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) +
+-			yaffs_CountBits(cDelta)) == 1) {
++	if ((yaffs_count_bits32(lDelta) + yaffs_count_bits32(lDeltaPrime) +
++			yaffs_count_bits(cDelta)) == 1) {
+ 		/* Reccoverable error in ecc */
+ 
+ 		*read_ecc = *test_ecc;
+--- a/fs/yaffs2/yaffs_ecc.h
++++ b/fs/yaffs2/yaffs_ecc.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -32,13 +32,13 @@ typedef struct {
+ 	unsigned lineParityPrime;
+ } yaffs_ECCOther;
+ 
+-void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc);
+-int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
++void yaffs_ecc_cacl(const unsigned char *data, unsigned char *ecc);
++int yaffs_ecc_correct(unsigned char *data, unsigned char *read_ecc,
+ 		const unsigned char *test_ecc);
+ 
+-void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
++void yaffs_ecc_calc_other(const unsigned char *data, unsigned n_bytes,
+ 			yaffs_ECCOther *ecc);
+-int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
++int yaffs_ecc_correct_other(unsigned char *data, unsigned n_bytes,
+ 			yaffs_ECCOther *read_ecc,
+ 			const yaffs_ECCOther *test_ecc);
+ #endif
+--- a/fs/yaffs2/yaffs_fs.c
++++ /dev/null
+@@ -1,2529 +0,0 @@
+-/*
+- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+- *
+- * Copyright (C) 2002-2009 Aleph One Ltd.
+- *   for Toby Churchill Ltd and Brightstar Engineering
+- *
+- * Created by Charles Manning <charles@aleph1.co.uk>
+- * Acknowledgements:
+- * Luc van OostenRyck for numerous patches.
+- * Nick Bane for numerous patches.
+- * Nick Bane for 2.5/2.6 integration.
+- * Andras Toth for mknod rdev issue.
+- * Michael Fischer for finding the problem with inode inconsistency.
+- * Some code bodily lifted from JFFS
+- *
+- * This program is free software; you can redistribute it and/or modify
+- * it under the terms of the GNU General Public License version 2 as
+- * published by the Free Software Foundation.
+- */
+-
+-/*
+- *
+- * This is the file system front-end to YAFFS that hooks it up to
+- * the VFS.
+- *
+- * Special notes:
+- * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with
+- *         this superblock
+- * >> 2.6: sb->s_fs_info  points to the yaffs_Device associated with this
+- *         superblock
+- * >> inode->u.generic_ip points to the associated yaffs_Object.
+- */
+-
+-const char *yaffs_fs_c_version =
+-    "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $";
+-extern const char *yaffs_guts_c_version;
+-
+-#include <linux/version.h>
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+-#include <linux/config.h>
+-#endif
+-#include <linux/kernel.h>
+-#include <linux/module.h>
+-#include <linux/slab.h>
+-#include <linux/init.h>
+-#include <linux/fs.h>
+-#include <linux/proc_fs.h>
+-#include <linux/smp_lock.h>
+-#include <linux/pagemap.h>
+-#include <linux/mtd/mtd.h>
+-#include <linux/interrupt.h>
+-#include <linux/string.h>
+-#include <linux/ctype.h>
+-
+-#include "asm/div64.h"
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-
+-#include <linux/statfs.h>	/* Added NCB 15-8-2003 */
+-#include <linux/statfs.h>
+-#define UnlockPage(p) unlock_page(p)
+-#define Page_Uptodate(page)	test_bit(PG_uptodate, &(page)->flags)
+-
+-/* FIXME: use sb->s_id instead ? */
+-#define yaffs_devname(sb, buf)	bdevname(sb->s_bdev, buf)
+-
+-#else
+-
+-#include <linux/locks.h>
+-#define	BDEVNAME_SIZE		0
+-#define	yaffs_devname(sb, buf)	kdevname(sb->s_dev)
+-
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0))
+-/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
+-#define __user
+-#endif
+-
+-#endif
+-
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
+-#define YPROC_ROOT  (&proc_root)
+-#else
+-#define YPROC_ROOT  NULL
+-#endif
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-#define WRITE_SIZE_STR "writesize"
+-#define WRITE_SIZE(mtd) ((mtd)->writesize)
+-#else
+-#define WRITE_SIZE_STR "oobblock"
+-#define WRITE_SIZE(mtd) ((mtd)->oobblock)
+-#endif
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27))
+-#define YAFFS_USE_WRITE_BEGIN_END 1
+-#else
+-#define YAFFS_USE_WRITE_BEGIN_END 0
+-#endif
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
+-static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
+-{
+-	uint64_t result = partition_size;
+-	do_div(result, block_size);
+-	return (uint32_t)result;
+-}
+-#else
+-#define YCALCBLOCKS(s, b) ((s)/(b))
+-#endif
+-
+-#include <linux/uaccess.h>
+-
+-#include "yportenv.h"
+-#include "yaffs_guts.h"
+-
+-#include <linux/mtd/mtd.h>
+-#include "yaffs_mtdif.h"
+-#include "yaffs_mtdif1.h"
+-#include "yaffs_mtdif2.h"
+-
+-unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS;
+-unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
+-unsigned int yaffs_auto_checkpoint = 1;
+-
+-/* Module Parameters */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-module_param(yaffs_traceMask, uint, 0644);
+-module_param(yaffs_wr_attempts, uint, 0644);
+-module_param(yaffs_auto_checkpoint, uint, 0644);
+-#else
+-MODULE_PARM(yaffs_traceMask, "i");
+-MODULE_PARM(yaffs_wr_attempts, "i");
+-MODULE_PARM(yaffs_auto_checkpoint, "i");
+-#endif
+-
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
+-/* use iget and read_inode */
+-#define Y_IGET(sb, inum) iget((sb), (inum))
+-static void yaffs_read_inode(struct inode *inode);
+-
+-#else
+-/* Call local equivalent */
+-#define YAFFS_USE_OWN_IGET
+-#define Y_IGET(sb, inum) yaffs_iget((sb), (inum))
+-
+-static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino);
+-#endif
+-
+-/*#define T(x) printk x */
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
+-#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private)
+-#else
+-#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip)
+-#endif
+-
+-#define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr)))
+-#define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode)
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-#define yaffs_SuperToDevice(sb)	((yaffs_Device *)sb->s_fs_info)
+-#else
+-#define yaffs_SuperToDevice(sb)	((yaffs_Device *)sb->u.generic_sbp)
+-#endif
+-
+-static void yaffs_put_super(struct super_block *sb);
+-
+-static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
+-				loff_t *pos);
+-static ssize_t yaffs_hold_space(struct file *f);
+-static void yaffs_release_space(struct file *f);
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs_file_flush(struct file *file, fl_owner_t id);
+-#else
+-static int yaffs_file_flush(struct file *file);
+-#endif
+-
+-static int yaffs_sync_object(struct file *file, struct dentry *dentry,
+-				int datasync);
+-
+-static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir);
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
+-			struct nameidata *n);
+-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
+-					struct nameidata *n);
+-#else
+-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
+-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry);
+-#endif
+-static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
+-			struct dentry *dentry);
+-static int yaffs_unlink(struct inode *dir, struct dentry *dentry);
+-static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
+-			const char *symname);
+-static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-			dev_t dev);
+-#else
+-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-			int dev);
+-#endif
+-static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
+-			struct inode *new_dir, struct dentry *new_dentry);
+-static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs_sync_fs(struct super_block *sb, int wait);
+-static void yaffs_write_super(struct super_block *sb);
+-#else
+-static int yaffs_sync_fs(struct super_block *sb);
+-static int yaffs_write_super(struct super_block *sb);
+-#endif
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf);
+-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
+-#else
+-static int yaffs_statfs(struct super_block *sb, struct statfs *buf);
+-#endif
+-
+-#ifdef YAFFS_HAS_PUT_INODE
+-static void yaffs_put_inode(struct inode *inode);
+-#endif
+-
+-static void yaffs_delete_inode(struct inode *);
+-static void yaffs_clear_inode(struct inode *);
+-
+-static int yaffs_readpage(struct file *file, struct page *page);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_writepage(struct page *page, struct writeback_control *wbc);
+-#else
+-static int yaffs_writepage(struct page *page);
+-#endif
+-
+-
+-#if (YAFFS_USE_WRITE_BEGIN_END != 0)
+-static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
+-				loff_t pos, unsigned len, unsigned flags,
+-				struct page **pagep, void **fsdata);
+-static int yaffs_write_end(struct file *filp, struct address_space *mapping,
+-				loff_t pos, unsigned len, unsigned copied,
+-				struct page *pg, void *fsdadata);
+-#else
+-static int yaffs_prepare_write(struct file *f, struct page *pg,
+-				unsigned offset, unsigned to);
+-static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
+-				unsigned to);
+-
+-#endif
+-
+-static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
+-				int buflen);
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
+-static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
+-#else
+-static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
+-#endif
+-
+-static struct address_space_operations yaffs_file_address_operations = {
+-	.readpage = yaffs_readpage,
+-	.writepage = yaffs_writepage,
+-#if (YAFFS_USE_WRITE_BEGIN_END > 0)
+-	.write_begin = yaffs_write_begin,
+-	.write_end = yaffs_write_end,
+-#else
+-	.prepare_write = yaffs_prepare_write,
+-	.commit_write = yaffs_commit_write,
+-#endif
+-};
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
+-static const struct file_operations yaffs_file_operations = {
+-	.read = do_sync_read,
+-	.write = do_sync_write,
+-	.aio_read = generic_file_aio_read,
+-	.aio_write = generic_file_aio_write,
+-	.mmap = generic_file_mmap,
+-	.flush = yaffs_file_flush,
+-	.fsync = yaffs_sync_object,
+-	.splice_read = generic_file_splice_read,
+-	.splice_write = generic_file_splice_write,
+-	.llseek = generic_file_llseek,
+-};
+-
+-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
+-
+-static const struct file_operations yaffs_file_operations = {
+-	.read = do_sync_read,
+-	.write = do_sync_write,
+-	.aio_read = generic_file_aio_read,
+-	.aio_write = generic_file_aio_write,
+-	.mmap = generic_file_mmap,
+-	.flush = yaffs_file_flush,
+-	.fsync = yaffs_sync_object,
+-	.sendfile = generic_file_sendfile,
+-};
+-
+-#else
+-
+-static const struct file_operations yaffs_file_operations = {
+-	.read = generic_file_read,
+-	.write = generic_file_write,
+-	.mmap = generic_file_mmap,
+-	.flush = yaffs_file_flush,
+-	.fsync = yaffs_sync_object,
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-	.sendfile = generic_file_sendfile,
+-#endif
+-};
+-#endif
+-
+-static const struct inode_operations yaffs_file_inode_operations = {
+-	.setattr = yaffs_setattr,
+-};
+-
+-static const struct inode_operations yaffs_symlink_inode_operations = {
+-	.readlink = yaffs_readlink,
+-	.follow_link = yaffs_follow_link,
+-	.setattr = yaffs_setattr,
+-};
+-
+-static const struct inode_operations yaffs_dir_inode_operations = {
+-	.create = yaffs_create,
+-	.lookup = yaffs_lookup,
+-	.link = yaffs_link,
+-	.unlink = yaffs_unlink,
+-	.symlink = yaffs_symlink,
+-	.mkdir = yaffs_mkdir,
+-	.rmdir = yaffs_unlink,
+-	.mknod = yaffs_mknod,
+-	.rename = yaffs_rename,
+-	.setattr = yaffs_setattr,
+-};
+-
+-static const struct file_operations yaffs_dir_operations = {
+-	.read = generic_read_dir,
+-	.readdir = yaffs_readdir,
+-	.fsync = yaffs_sync_object,
+-};
+-
+-static const struct super_operations yaffs_super_ops = {
+-	.statfs = yaffs_statfs,
+-
+-#ifndef YAFFS_USE_OWN_IGET
+-	.read_inode = yaffs_read_inode,
+-#endif
+-#ifdef YAFFS_HAS_PUT_INODE
+-	.put_inode = yaffs_put_inode,
+-#endif
+-	.put_super = yaffs_put_super,
+-	.delete_inode = yaffs_delete_inode,
+-	.clear_inode = yaffs_clear_inode,
+-	.sync_fs = yaffs_sync_fs,
+-	.write_super = yaffs_write_super,
+-};
+-
+-static void yaffs_GrossLock(yaffs_Device *dev)
+-{
+-	T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current));
+-	down(&dev->grossLock);
+-	T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current));
+-}
+-
+-static void yaffs_GrossUnlock(yaffs_Device *dev)
+-{
+-	T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current));
+-	up(&dev->grossLock);
+-}
+-
+-static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
+-			int buflen)
+-{
+-	unsigned char *alias;
+-	int ret;
+-
+-	yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	if (!alias)
+-		return -ENOMEM;
+-
+-	ret = vfs_readlink(dentry, buffer, buflen, alias);
+-	kfree(alias);
+-	return ret;
+-}
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
+-static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
+-#else
+-static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
+-#endif
+-{
+-	unsigned char *alias;
+-	int ret;
+-	yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry));
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	if (!alias) {
+-		ret = -ENOMEM;
+-		goto out;
+-	}
+-
+-	ret = vfs_follow_link(nd, alias);
+-	kfree(alias);
+-out:
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
+-	return ERR_PTR(ret);
+-#else
+-	return ret;
+-#endif
+-}
+-
+-struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
+-				yaffs_Object *obj);
+-
+-/*
+- * Lookup is used to find objects in the fs
+- */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-
+-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
+-				struct nameidata *n)
+-#else
+-static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry)
+-#endif
+-{
+-	yaffs_Object *obj;
+-	struct inode *inode = NULL;	/* NCB 2.5/2.6 needs NULL here */
+-
+-	yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_lookup for %d:%s\n",
+-		yaffs_InodeToObject(dir)->objectId, dentry->d_name.name));
+-
+-	obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir),
+-					dentry->d_name.name);
+-
+-	obj = yaffs_GetEquivalentObject(obj);	/* in case it was a hardlink */
+-
+-	/* Can't hold gross lock when calling yaffs_get_inode() */
+-	yaffs_GrossUnlock(dev);
+-
+-	if (obj) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_lookup found %d\n", obj->objectId));
+-
+-		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
+-
+-		if (inode) {
+-			T(YAFFS_TRACE_OS,
+-				("yaffs_loookup dentry \n"));
+-/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
+- * d_add even if NULL inode */
+-#if 0
+-			/*dget(dentry); // try to solve directory bug */
+-			d_add(dentry, inode);
+-
+-			/* return dentry; */
+-			return NULL;
+-#endif
+-		}
+-
+-	} else {
+-		T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n"));
+-
+-	}
+-
+-/* added NCB for 2.5/6 compatability - forces add even if inode is
+- * NULL which creates dentry hash */
+-	d_add(dentry, inode);
+-
+-	return NULL;
+-}
+-
+-
+-#ifdef YAFFS_HAS_PUT_INODE
+-
+-/* For now put inode is just for debugging
+- * Put inode is called when the inode **structure** is put.
+- */
+-static void yaffs_put_inode(struct inode *inode)
+-{
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino,
+-		atomic_read(&inode->i_count)));
+-
+-}
+-#endif
+-
+-/* clear is called to tell the fs to release any per-inode data it holds */
+-static void yaffs_clear_inode(struct inode *inode)
+-{
+-	yaffs_Object *obj;
+-	yaffs_Device *dev;
+-
+-	obj = yaffs_InodeToObject(inode);
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino,
+-		atomic_read(&inode->i_count),
+-		obj ? "object exists" : "null object"));
+-
+-	if (obj) {
+-		dev = obj->myDev;
+-		yaffs_GrossLock(dev);
+-
+-		/* Clear the association between the inode and
+-		 * the yaffs_Object.
+-		 */
+-		obj->myInode = NULL;
+-		yaffs_InodeToObjectLV(inode) = NULL;
+-
+-		/* If the object freeing was deferred, then the real
+-		 * free happens now.
+-		 * This should fix the inode inconsistency problem.
+-		 */
+-
+-		yaffs_HandleDeferedFree(obj);
+-
+-		yaffs_GrossUnlock(dev);
+-	}
+-
+-}
+-
+-/* delete is called when the link count is zero and the inode
+- * is put (ie. nobody wants to know about it anymore, time to
+- * delete the file).
+- * NB Must call clear_inode()
+- */
+-static void yaffs_delete_inode(struct inode *inode)
+-{
+-	yaffs_Object *obj = yaffs_InodeToObject(inode);
+-	yaffs_Device *dev;
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino,
+-		atomic_read(&inode->i_count),
+-		obj ? "object exists" : "null object"));
+-
+-	if (obj) {
+-		dev = obj->myDev;
+-		yaffs_GrossLock(dev);
+-		yaffs_DeleteObject(obj);
+-		yaffs_GrossUnlock(dev);
+-	}
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
+-	truncate_inode_pages(&inode->i_data, 0);
+-#endif
+-	clear_inode(inode);
+-}
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs_file_flush(struct file *file, fl_owner_t id)
+-#else
+-static int yaffs_file_flush(struct file *file)
+-#endif
+-{
+-	yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry);
+-
+-	yaffs_Device *dev = obj->myDev;
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_file_flush object %d (%s)\n", obj->objectId,
+-		obj->dirty ? "dirty" : "clean"));
+-
+-	yaffs_GrossLock(dev);
+-
+-	yaffs_FlushFile(obj, 1);
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	return 0;
+-}
+-
+-static int yaffs_readpage_nolock(struct file *f, struct page *pg)
+-{
+-	/* Lifted from jffs2 */
+-
+-	yaffs_Object *obj;
+-	unsigned char *pg_buf;
+-	int ret;
+-
+-	yaffs_Device *dev;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n",
+-			(unsigned)(pg->index << PAGE_CACHE_SHIFT),
+-			(unsigned)PAGE_CACHE_SIZE));
+-
+-	obj = yaffs_DentryToObject(f->f_dentry);
+-
+-	dev = obj->myDev;
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-	BUG_ON(!PageLocked(pg));
+-#else
+-	if (!PageLocked(pg))
+-		PAGE_BUG(pg);
+-#endif
+-
+-	pg_buf = kmap(pg);
+-	/* FIXME: Can kmap fail? */
+-
+-	yaffs_GrossLock(dev);
+-
+-	ret = yaffs_ReadDataFromFile(obj, pg_buf,
+-				pg->index << PAGE_CACHE_SHIFT,
+-				PAGE_CACHE_SIZE);
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	if (ret >= 0)
+-		ret = 0;
+-
+-	if (ret) {
+-		ClearPageUptodate(pg);
+-		SetPageError(pg);
+-	} else {
+-		SetPageUptodate(pg);
+-		ClearPageError(pg);
+-	}
+-
+-	flush_dcache_page(pg);
+-	kunmap(pg);
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_readpage done\n"));
+-	return ret;
+-}
+-
+-static int yaffs_readpage_unlock(struct file *f, struct page *pg)
+-{
+-	int ret = yaffs_readpage_nolock(f, pg);
+-	UnlockPage(pg);
+-	return ret;
+-}
+-
+-static int yaffs_readpage(struct file *f, struct page *pg)
+-{
+-	return yaffs_readpage_unlock(f, pg);
+-}
+-
+-/* writepage inspired by/stolen from smbfs */
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_writepage(struct page *page, struct writeback_control *wbc)
+-#else
+-static int yaffs_writepage(struct page *page)
+-#endif
+-{
+-	struct address_space *mapping = page->mapping;
+-	loff_t offset = (loff_t) page->index << PAGE_CACHE_SHIFT;
+-	struct inode *inode;
+-	unsigned long end_index;
+-	char *buffer;
+-	yaffs_Object *obj;
+-	int nWritten = 0;
+-	unsigned nBytes;
+-
+-	if (!mapping)
+-		BUG();
+-	inode = mapping->host;
+-	if (!inode)
+-		BUG();
+-
+-	if (offset > inode->i_size) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_writepage at %08x, inode size = %08x!!!\n",
+-			(unsigned)(page->index << PAGE_CACHE_SHIFT),
+-			(unsigned)inode->i_size));
+-		T(YAFFS_TRACE_OS,
+-			("                -> don't care!!\n"));
+-		unlock_page(page);
+-		return 0;
+-	}
+-
+-	end_index = inode->i_size >> PAGE_CACHE_SHIFT;
+-
+-	/* easy case */
+-	if (page->index < end_index)
+-		nBytes = PAGE_CACHE_SIZE;
+-	else
+-		nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1);
+-
+-	get_page(page);
+-
+-	buffer = kmap(page);
+-
+-	obj = yaffs_InodeToObject(inode);
+-	yaffs_GrossLock(obj->myDev);
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_writepage at %08x, size %08x\n",
+-		(unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes));
+-	T(YAFFS_TRACE_OS,
+-		("writepag0: obj = %05x, ino = %05x\n",
+-		(int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
+-
+-	nWritten = yaffs_WriteDataToFile(obj, buffer,
+-			page->index << PAGE_CACHE_SHIFT, nBytes, 0);
+-
+-	T(YAFFS_TRACE_OS,
+-		("writepag1: obj = %05x, ino = %05x\n",
+-		(int)obj->variant.fileVariant.fileSize, (int)inode->i_size));
+-
+-	yaffs_GrossUnlock(obj->myDev);
+-
+-	kunmap(page);
+-	SetPageUptodate(page);
+-	UnlockPage(page);
+-	put_page(page);
+-
+-	return (nWritten == nBytes) ? 0 : -ENOSPC;
+-}
+-
+-
+-#if (YAFFS_USE_WRITE_BEGIN_END > 0)
+-static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
+-				loff_t pos, unsigned len, unsigned flags,
+-				struct page **pagep, void **fsdata)
+-{
+-	struct page *pg = NULL;
+-	pgoff_t index = pos >> PAGE_CACHE_SHIFT;
+-	uint32_t offset = pos & (PAGE_CACHE_SIZE - 1);
+-	uint32_t to = offset + len;
+-
+-	int ret = 0;
+-	int space_held = 0;
+-
+-	T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n"));
+-	/* Get a page */
+-#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)
+-	pg = grab_cache_page_write_begin(mapping, index, flags);
+-#else
+-	pg = __grab_cache_page(mapping, index);
+-#endif
+-
+-	*pagep = pg;
+-	if (!pg) {
+-		ret =  -ENOMEM;
+-		goto out;
+-	}
+-	/* Get fs space */
+-	space_held = yaffs_hold_space(filp);
+-
+-	if (!space_held) {
+-		ret = -ENOSPC;
+-		goto out;
+-	}
+-
+-	/* Update page if required */
+-
+-	if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
+-		ret = yaffs_readpage_nolock(filp, pg);
+-
+-	if (ret)
+-		goto out;
+-
+-	/* Happy path return */
+-	T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n"));
+-
+-	return 0;
+-
+-out:
+-	T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret));
+-	if (space_held)
+-		yaffs_release_space(filp);
+-	if (pg) {
+-		unlock_page(pg);
+-		page_cache_release(pg);
+-	}
+-	return ret;
+-}
+-
+-#else
+-
+-static int yaffs_prepare_write(struct file *f, struct page *pg,
+-				unsigned offset, unsigned to)
+-{
+-	T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n"));
+-
+-	if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE))
+-		return yaffs_readpage_nolock(f, pg);
+-	return 0;
+-}
+-#endif
+-
+-#if (YAFFS_USE_WRITE_BEGIN_END > 0)
+-static int yaffs_write_end(struct file *filp, struct address_space *mapping,
+-				loff_t pos, unsigned len, unsigned copied,
+-				struct page *pg, void *fsdadata)
+-{
+-	int ret = 0;
+-	void *addr, *kva;
+-	uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1);
+-
+-	kva = kmap(pg);
+-	addr = kva + offset_into_page;
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_write_end addr %x pos %x nBytes %d\n",
+-		(unsigned) addr,
+-		(int)pos, copied));
+-
+-	ret = yaffs_file_write(filp, addr, copied, &pos);
+-
+-	if (ret != copied) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_write_end not same size ret %d  copied %d\n",
+-			ret, copied));
+-		SetPageError(pg);
+-		ClearPageUptodate(pg);
+-	} else {
+-		SetPageUptodate(pg);
+-	}
+-
+-	kunmap(pg);
+-
+-	yaffs_release_space(filp);
+-	unlock_page(pg);
+-	page_cache_release(pg);
+-	return ret;
+-}
+-#else
+-
+-static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
+-				unsigned to)
+-{
+-	void *addr, *kva;
+-
+-	loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
+-	int nBytes = to - offset;
+-	int nWritten;
+-
+-	unsigned spos = pos;
+-	unsigned saddr;
+-
+-	kva = kmap(pg);
+-	addr = kva + offset;
+-
+-	saddr = (unsigned) addr;
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_commit_write addr %x pos %x nBytes %d\n",
+-		saddr, spos, nBytes));
+-
+-	nWritten = yaffs_file_write(f, addr, nBytes, &pos);
+-
+-	if (nWritten != nBytes) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_commit_write not same size nWritten %d  nBytes %d\n",
+-			nWritten, nBytes));
+-		SetPageError(pg);
+-		ClearPageUptodate(pg);
+-	} else {
+-		SetPageUptodate(pg);
+-	}
+-
+-	kunmap(pg);
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_commit_write returning %d\n",
+-		nWritten == nBytes ? 0 : nWritten));
+-
+-	return nWritten == nBytes ? 0 : nWritten;
+-}
+-#endif
+-
+-
+-static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj)
+-{
+-	if (inode && obj) {
+-
+-
+-		/* Check mode against the variant type and attempt to repair if broken. */
+-		__u32 mode = obj->yst_mode;
+-		switch (obj->variantType) {
+-		case YAFFS_OBJECT_TYPE_FILE:
+-			if (!S_ISREG(mode)) {
+-				obj->yst_mode &= ~S_IFMT;
+-				obj->yst_mode |= S_IFREG;
+-			}
+-
+-			break;
+-		case YAFFS_OBJECT_TYPE_SYMLINK:
+-			if (!S_ISLNK(mode)) {
+-				obj->yst_mode &= ~S_IFMT;
+-				obj->yst_mode |= S_IFLNK;
+-			}
+-
+-			break;
+-		case YAFFS_OBJECT_TYPE_DIRECTORY:
+-			if (!S_ISDIR(mode)) {
+-				obj->yst_mode &= ~S_IFMT;
+-				obj->yst_mode |= S_IFDIR;
+-			}
+-
+-			break;
+-		case YAFFS_OBJECT_TYPE_UNKNOWN:
+-		case YAFFS_OBJECT_TYPE_HARDLINK:
+-		case YAFFS_OBJECT_TYPE_SPECIAL:
+-		default:
+-			/* TODO? */
+-			break;
+-		}
+-
+-		inode->i_flags |= S_NOATIME;
+-
+-		inode->i_ino = obj->objectId;
+-		inode->i_mode = obj->yst_mode;
+-		inode->i_uid = obj->yst_uid;
+-		inode->i_gid = obj->yst_gid;
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+-		inode->i_blksize = inode->i_sb->s_blocksize;
+-#endif
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-
+-		inode->i_rdev = old_decode_dev(obj->yst_rdev);
+-		inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
+-		inode->i_atime.tv_nsec = 0;
+-		inode->i_mtime.tv_sec = (time_t) obj->yst_mtime;
+-		inode->i_mtime.tv_nsec = 0;
+-		inode->i_ctime.tv_sec = (time_t) obj->yst_ctime;
+-		inode->i_ctime.tv_nsec = 0;
+-#else
+-		inode->i_rdev = obj->yst_rdev;
+-		inode->i_atime = obj->yst_atime;
+-		inode->i_mtime = obj->yst_mtime;
+-		inode->i_ctime = obj->yst_ctime;
+-#endif
+-		inode->i_size = yaffs_GetObjectFileLength(obj);
+-		inode->i_blocks = (inode->i_size + 511) >> 9;
+-
+-		inode->i_nlink = yaffs_GetObjectLinkCount(obj);
+-
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n",
+-			inode->i_mode, inode->i_uid, inode->i_gid,
+-			(int)inode->i_size, atomic_read(&inode->i_count)));
+-
+-		switch (obj->yst_mode & S_IFMT) {
+-		default:	/* fifo, device or socket */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-			init_special_inode(inode, obj->yst_mode,
+-					old_decode_dev(obj->yst_rdev));
+-#else
+-			init_special_inode(inode, obj->yst_mode,
+-					(dev_t) (obj->yst_rdev));
+-#endif
+-			break;
+-		case S_IFREG:	/* file */
+-			inode->i_op = &yaffs_file_inode_operations;
+-			inode->i_fop = &yaffs_file_operations;
+-			inode->i_mapping->a_ops =
+-				&yaffs_file_address_operations;
+-			break;
+-		case S_IFDIR:	/* directory */
+-			inode->i_op = &yaffs_dir_inode_operations;
+-			inode->i_fop = &yaffs_dir_operations;
+-			break;
+-		case S_IFLNK:	/* symlink */
+-			inode->i_op = &yaffs_symlink_inode_operations;
+-			break;
+-		}
+-
+-		yaffs_InodeToObjectLV(inode) = obj;
+-
+-		obj->myInode = inode;
+-
+-	} else {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_FileInode invalid parameters\n"));
+-	}
+-
+-}
+-
+-struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
+-				yaffs_Object *obj)
+-{
+-	struct inode *inode;
+-
+-	if (!sb) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_get_inode for NULL super_block!!\n"));
+-		return NULL;
+-
+-	}
+-
+-	if (!obj) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_get_inode for NULL object!!\n"));
+-		return NULL;
+-
+-	}
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_get_inode for object %d\n", obj->objectId));
+-
+-	inode = Y_IGET(sb, obj->objectId);
+-	if (IS_ERR(inode))
+-		return NULL;
+-
+-	/* NB Side effect: iget calls back to yaffs_read_inode(). */
+-	/* iget also increments the inode's i_count */
+-	/* NB You can't be holding grossLock or deadlock will happen! */
+-
+-	return inode;
+-}
+-
+-static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
+-				loff_t *pos)
+-{
+-	yaffs_Object *obj;
+-	int nWritten, ipos;
+-	struct inode *inode;
+-	yaffs_Device *dev;
+-
+-	obj = yaffs_DentryToObject(f->f_dentry);
+-
+-	dev = obj->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	inode = f->f_dentry->d_inode;
+-
+-	if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND)
+-		ipos = inode->i_size;
+-	else
+-		ipos = *pos;
+-
+-	if (!obj)
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_file_write: hey obj is null!\n"));
+-	else
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_file_write about to write writing %zu bytes"
+-			"to object %d at %d\n",
+-			n, obj->objectId, ipos));
+-
+-	nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0);
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_file_write writing %zu bytes, %d written at %d\n",
+-		n, nWritten, ipos));
+-
+-	if (nWritten > 0) {
+-		ipos += nWritten;
+-		*pos = ipos;
+-		if (ipos > inode->i_size) {
+-			inode->i_size = ipos;
+-			inode->i_blocks = (ipos + 511) >> 9;
+-
+-			T(YAFFS_TRACE_OS,
+-				("yaffs_file_write size updated to %d bytes, "
+-				"%d blocks\n",
+-				ipos, (int)(inode->i_blocks)));
+-		}
+-
+-	}
+-	yaffs_GrossUnlock(dev);
+-	return nWritten == 0 ? -ENOSPC : nWritten;
+-}
+-
+-/* Space holding and freeing is done to ensure we have space available for write_begin/end */
+-/* For now we just assume few parallel writes and check against a small number. */
+-/* Todo: need to do this with a counter to handle parallel reads better */
+-
+-static ssize_t yaffs_hold_space(struct file *f)
+-{
+-	yaffs_Object *obj;
+-	yaffs_Device *dev;
+-
+-	int nFreeChunks;
+-
+-
+-	obj = yaffs_DentryToObject(f->f_dentry);
+-
+-	dev = obj->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	nFreeChunks = yaffs_GetNumberOfFreeChunks(dev);
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	return (nFreeChunks > 20) ? 1 : 0;
+-}
+-
+-static void yaffs_release_space(struct file *f)
+-{
+-	yaffs_Object *obj;
+-	yaffs_Device *dev;
+-
+-
+-	obj = yaffs_DentryToObject(f->f_dentry);
+-
+-	dev = obj->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-
+-	yaffs_GrossUnlock(dev);
+-}
+-
+-static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
+-{
+-	yaffs_Object *obj;
+-	yaffs_Device *dev;
+-	struct inode *inode = f->f_dentry->d_inode;
+-	unsigned long offset, curoffs;
+-	struct ylist_head *i;
+-	yaffs_Object *l;
+-
+-	char name[YAFFS_MAX_NAME_LENGTH + 1];
+-
+-	obj = yaffs_DentryToObject(f->f_dentry);
+-	dev = obj->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	offset = f->f_pos;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_readdir: starting at %d\n", (int)offset));
+-
+-	if (offset == 0) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_readdir: entry . ino %d \n",
+-			(int)inode->i_ino));
+-		if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0)
+-			goto out;
+-		offset++;
+-		f->f_pos++;
+-	}
+-	if (offset == 1) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_readdir: entry .. ino %d \n",
+-			(int)f->f_dentry->d_parent->d_inode->i_ino));
+-		if (filldir(dirent, "..", 2, offset,
+-			f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0)
+-			goto out;
+-		offset++;
+-		f->f_pos++;
+-	}
+-
+-	curoffs = 1;
+-
+-	/* If the directory has changed since the open or last call to
+-	   readdir, rewind to after the 2 canned entries. */
+-
+-	if (f->f_version != inode->i_version) {
+-		offset = 2;
+-		f->f_pos = offset;
+-		f->f_version = inode->i_version;
+-	}
+-
+-	ylist_for_each(i, &obj->variant.directoryVariant.children) {
+-		curoffs++;
+-		if (curoffs >= offset) {
+-			l = ylist_entry(i, yaffs_Object, siblings);
+-
+-			yaffs_GetObjectName(l, name,
+-					    YAFFS_MAX_NAME_LENGTH + 1);
+-			T(YAFFS_TRACE_OS,
+-			  ("yaffs_readdir: %s inode %d\n", name,
+-			   yaffs_GetObjectInode(l)));
+-
+-			if (filldir(dirent,
+-					name,
+-					strlen(name),
+-					offset,
+-					yaffs_GetObjectInode(l),
+-					yaffs_GetObjectType(l)) < 0)
+-				goto up_and_out;
+-
+-			offset++;
+-			f->f_pos++;
+-		}
+-	}
+-
+-up_and_out:
+-out:
+-	yaffs_GrossUnlock(dev);
+-
+-	return 0;
+-}
+-
+-/*
+- * File creation. Allocate an inode, and we're done..
+- */
+-
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+-#define YCRED(x) x
+-#else
+-#define YCRED(x) (x->cred)
+-#endif
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-			dev_t rdev)
+-#else
+-static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
+-			int rdev)
+-#endif
+-{
+-	struct inode *inode;
+-
+-	yaffs_Object *obj = NULL;
+-	yaffs_Device *dev;
+-
+-	yaffs_Object *parent = yaffs_InodeToObject(dir);
+-
+-	int error = -ENOSPC;
+-	uid_t uid = YCRED(current)->fsuid;
+-	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+-
+-	if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
+-		mode |= S_ISGID;
+-
+-	if (parent) {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_mknod: parent object %d type %d\n",
+-			parent->objectId, parent->variantType));
+-	} else {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_mknod: could not get parent object\n"));
+-		return -EPERM;
+-	}
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, "
+-			"mode %x dev %x\n",
+-			dentry->d_name.name, mode, rdev));
+-
+-	dev = parent->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	switch (mode & S_IFMT) {
+-	default:
+-		/* Special (socket, fifo, device...) */
+-		T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n"));
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-		obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
+-				gid, old_encode_dev(rdev));
+-#else
+-		obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid,
+-				gid, rdev);
+-#endif
+-		break;
+-	case S_IFREG:		/* file          */
+-		T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n"));
+-		obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid,
+-				gid);
+-		break;
+-	case S_IFDIR:		/* directory */
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_mknod: making directory\n"));
+-		obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode,
+-					uid, gid);
+-		break;
+-	case S_IFLNK:		/* symlink */
+-		T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n"));
+-		obj = NULL;	/* Do we ever get here? */
+-		break;
+-	}
+-
+-	/* Can not call yaffs_get_inode() with gross lock held */
+-	yaffs_GrossUnlock(dev);
+-
+-	if (obj) {
+-		inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
+-		d_instantiate(dentry, inode);
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_mknod created object %d count = %d\n",
+-			obj->objectId, atomic_read(&inode->i_count)));
+-		error = 0;
+-	} else {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_mknod failed making object\n"));
+-		error = -ENOMEM;
+-	}
+-
+-	return error;
+-}
+-
+-static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+-{
+-	int retVal;
+-	T(YAFFS_TRACE_OS, ("yaffs_mkdir\n"));
+-	retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0);
+-	return retVal;
+-}
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
+-			struct nameidata *n)
+-#else
+-static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode)
+-#endif
+-{
+-	T(YAFFS_TRACE_OS, ("yaffs_create\n"));
+-	return yaffs_mknod(dir, dentry, mode | S_IFREG, 0);
+-}
+-
+-static int yaffs_unlink(struct inode *dir, struct dentry *dentry)
+-{
+-	int retVal;
+-
+-	yaffs_Device *dev;
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_unlink %d:%s\n", (int)(dir->i_ino),
+-		dentry->d_name.name));
+-
+-	dev = yaffs_InodeToObject(dir)->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	retVal = yaffs_Unlink(yaffs_InodeToObject(dir), dentry->d_name.name);
+-
+-	if (retVal == YAFFS_OK) {
+-		dentry->d_inode->i_nlink--;
+-		dir->i_version++;
+-		yaffs_GrossUnlock(dev);
+-		mark_inode_dirty(dentry->d_inode);
+-		return 0;
+-	}
+-	yaffs_GrossUnlock(dev);
+-	return -ENOTEMPTY;
+-}
+-
+-/*
+- * Create a link...
+- */
+-static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
+-			struct dentry *dentry)
+-{
+-	struct inode *inode = old_dentry->d_inode;
+-	yaffs_Object *obj = NULL;
+-	yaffs_Object *link = NULL;
+-	yaffs_Device *dev;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_link\n"));
+-
+-	obj = yaffs_InodeToObject(inode);
+-	dev = obj->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	if (!S_ISDIR(inode->i_mode))		/* Don't link directories */
+-		link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name,
+-			obj);
+-
+-	if (link) {
+-		old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj);
+-		d_instantiate(dentry, old_dentry->d_inode);
+-		atomic_inc(&old_dentry->d_inode->i_count);
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_link link count %d i_count %d\n",
+-			old_dentry->d_inode->i_nlink,
+-			atomic_read(&old_dentry->d_inode->i_count)));
+-	}
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	if (link)
+-		return 0;
+-
+-	return -EPERM;
+-}
+-
+-static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
+-				const char *symname)
+-{
+-	yaffs_Object *obj;
+-	yaffs_Device *dev;
+-	uid_t uid = YCRED(current)->fsuid;
+-	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_symlink\n"));
+-
+-	dev = yaffs_InodeToObject(dir)->myDev;
+-	yaffs_GrossLock(dev);
+-	obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name,
+-				S_IFLNK | S_IRWXUGO, uid, gid, symname);
+-	yaffs_GrossUnlock(dev);
+-
+-	if (obj) {
+-		struct inode *inode;
+-
+-		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
+-		d_instantiate(dentry, inode);
+-		T(YAFFS_TRACE_OS, ("symlink created OK\n"));
+-		return 0;
+-	} else {
+-		T(YAFFS_TRACE_OS, ("symlink not created\n"));
+-	}
+-
+-	return -ENOMEM;
+-}
+-
+-static int yaffs_sync_object(struct file *file, struct dentry *dentry,
+-				int datasync)
+-{
+-
+-	yaffs_Object *obj;
+-	yaffs_Device *dev;
+-
+-	obj = yaffs_DentryToObject(dentry);
+-
+-	dev = obj->myDev;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_sync_object\n"));
+-	yaffs_GrossLock(dev);
+-	yaffs_FlushFile(obj, 1);
+-	yaffs_GrossUnlock(dev);
+-	return 0;
+-}
+-
+-/*
+- * The VFS layer already does all the dentry stuff for rename.
+- *
+- * NB: POSIX says you can rename an object over an old object of the same name
+- */
+-static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
+-			struct inode *new_dir, struct dentry *new_dentry)
+-{
+-	yaffs_Device *dev;
+-	int retVal = YAFFS_FAIL;
+-	yaffs_Object *target;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_rename\n"));
+-	dev = yaffs_InodeToObject(old_dir)->myDev;
+-
+-	yaffs_GrossLock(dev);
+-
+-	/* Check if the target is an existing directory that is not empty. */
+-	target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir),
+-				new_dentry->d_name.name);
+-
+-
+-
+-	if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
+-		!ylist_empty(&target->variant.directoryVariant.children)) {
+-
+-		T(YAFFS_TRACE_OS, ("target is non-empty dir\n"));
+-
+-		retVal = YAFFS_FAIL;
+-	} else {
+-		/* Now does unlinking internally using shadowing mechanism */
+-		T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n"));
+-
+-		retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir),
+-				old_dentry->d_name.name,
+-				yaffs_InodeToObject(new_dir),
+-				new_dentry->d_name.name);
+-	}
+-	yaffs_GrossUnlock(dev);
+-
+-	if (retVal == YAFFS_OK) {
+-		if (target) {
+-			new_dentry->d_inode->i_nlink--;
+-			mark_inode_dirty(new_dentry->d_inode);
+-		}
+-
+-		return 0;
+-	} else {
+-		return -ENOTEMPTY;
+-	}
+-}
+-
+-static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
+-{
+-	struct inode *inode = dentry->d_inode;
+-	int error;
+-	yaffs_Device *dev;
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_setattr of object %d\n",
+-		yaffs_InodeToObject(inode)->objectId));
+-
+-	error = inode_change_ok(inode, attr);
+-	if (error == 0) {
+-		dev = yaffs_InodeToObject(inode)->myDev;
+-		yaffs_GrossLock(dev);
+-		if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) ==
+-				YAFFS_OK) {
+-			error = 0;
+-		} else {
+-			error = -EPERM;
+-		}
+-		yaffs_GrossUnlock(dev);
+-		if (!error)
+-			error = inode_setattr(inode, attr);
+-	}
+-	return error;
+-}
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
+-{
+-	yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev;
+-	struct super_block *sb = dentry->d_sb;
+-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf)
+-{
+-	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+-#else
+-static int yaffs_statfs(struct super_block *sb, struct statfs *buf)
+-{
+-	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+-#endif
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_statfs\n"));
+-
+-	yaffs_GrossLock(dev);
+-
+-	buf->f_type = YAFFS_MAGIC;
+-	buf->f_bsize = sb->s_blocksize;
+-	buf->f_namelen = 255;
+-
+-	if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) {
+-		/* Do this if chunk size is not a power of 2 */
+-
+-		uint64_t bytesInDev;
+-		uint64_t bytesFree;
+-
+-		bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) *
+-			((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk));
+-
+-		do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */
+-		buf->f_blocks = bytesInDev;
+-
+-		bytesFree  = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) *
+-			((uint64_t)(dev->nDataBytesPerChunk));
+-
+-		do_div(bytesFree, sb->s_blocksize);
+-
+-		buf->f_bfree = bytesFree;
+-
+-	} else if (sb->s_blocksize > dev->nDataBytesPerChunk) {
+-
+-		buf->f_blocks =
+-			(dev->endBlock - dev->startBlock + 1) *
+-			dev->nChunksPerBlock /
+-			(sb->s_blocksize / dev->nDataBytesPerChunk);
+-		buf->f_bfree =
+-			yaffs_GetNumberOfFreeChunks(dev) /
+-			(sb->s_blocksize / dev->nDataBytesPerChunk);
+-	} else {
+-		buf->f_blocks =
+-			(dev->endBlock - dev->startBlock + 1) *
+-			dev->nChunksPerBlock *
+-			(dev->nDataBytesPerChunk / sb->s_blocksize);
+-
+-		buf->f_bfree =
+-			yaffs_GetNumberOfFreeChunks(dev) *
+-			(dev->nDataBytesPerChunk / sb->s_blocksize);
+-	}
+-
+-	buf->f_files = 0;
+-	buf->f_ffree = 0;
+-	buf->f_bavail = buf->f_bfree;
+-
+-	yaffs_GrossUnlock(dev);
+-	return 0;
+-}
+-
+-
+-static int yaffs_do_sync_fs(struct super_block *sb)
+-{
+-
+-	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+-	T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n"));
+-
+-	if (sb->s_dirt) {
+-		yaffs_GrossLock(dev);
+-
+-		if (dev) {
+-			yaffs_FlushEntireDeviceCache(dev);
+-			yaffs_CheckpointSave(dev);
+-		}
+-
+-		yaffs_GrossUnlock(dev);
+-
+-		sb->s_dirt = 0;
+-	}
+-	return 0;
+-}
+-
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static void yaffs_write_super(struct super_block *sb)
+-#else
+-static int yaffs_write_super(struct super_block *sb)
+-#endif
+-{
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_write_super\n"));
+-	if (yaffs_auto_checkpoint >= 2)
+-		yaffs_do_sync_fs(sb);
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18))
+-	return 0;
+-#endif
+-}
+-
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs_sync_fs(struct super_block *sb, int wait)
+-#else
+-static int yaffs_sync_fs(struct super_block *sb)
+-#endif
+-{
+-	T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n"));
+-
+-	if (yaffs_auto_checkpoint >= 1)
+-		yaffs_do_sync_fs(sb);
+-
+-	return 0;
+-}
+-
+-#ifdef YAFFS_USE_OWN_IGET
+-
+-static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino)
+-{
+-	struct inode *inode;
+-	yaffs_Object *obj;
+-	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_iget for %lu\n", ino));
+-
+-	inode = iget_locked(sb, ino);
+-	if (!inode)
+-		return ERR_PTR(-ENOMEM);
+-	if (!(inode->i_state & I_NEW))
+-		return inode;
+-
+-	/* NB This is called as a side effect of other functions, but
+-	 * we had to release the lock to prevent deadlocks, so
+-	 * need to lock again.
+-	 */
+-
+-	yaffs_GrossLock(dev);
+-
+-	obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
+-
+-	yaffs_FillInodeFromObject(inode, obj);
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	unlock_new_inode(inode);
+-	return inode;
+-}
+-
+-#else
+-
+-static void yaffs_read_inode(struct inode *inode)
+-{
+-	/* NB This is called as a side effect of other functions, but
+-	 * we had to release the lock to prevent deadlocks, so
+-	 * need to lock again.
+-	 */
+-
+-	yaffs_Object *obj;
+-	yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb);
+-
+-	T(YAFFS_TRACE_OS,
+-		("yaffs_read_inode for %d\n", (int)inode->i_ino));
+-
+-	yaffs_GrossLock(dev);
+-
+-	obj = yaffs_FindObjectByNumber(dev, inode->i_ino);
+-
+-	yaffs_FillInodeFromObject(inode, obj);
+-
+-	yaffs_GrossUnlock(dev);
+-}
+-
+-#endif
+-
+-static YLIST_HEAD(yaffs_dev_list);
+-
+-#if 0 /* not used */
+-static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data)
+-{
+-	yaffs_Device    *dev = yaffs_SuperToDevice(sb);
+-
+-	if (*flags & MS_RDONLY) {
+-		struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
+-
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_remount_fs: %s: RO\n", dev->name));
+-
+-		yaffs_GrossLock(dev);
+-
+-		yaffs_FlushEntireDeviceCache(dev);
+-
+-		yaffs_CheckpointSave(dev);
+-
+-		if (mtd->sync)
+-			mtd->sync(mtd);
+-
+-		yaffs_GrossUnlock(dev);
+-	} else {
+-		T(YAFFS_TRACE_OS,
+-			("yaffs_remount_fs: %s: RW\n", dev->name));
+-	}
+-
+-	return 0;
+-}
+-#endif
+-
+-static void yaffs_put_super(struct super_block *sb)
+-{
+-	yaffs_Device *dev = yaffs_SuperToDevice(sb);
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_put_super\n"));
+-
+-	yaffs_GrossLock(dev);
+-
+-	yaffs_FlushEntireDeviceCache(dev);
+-
+-	yaffs_CheckpointSave(dev);
+-
+-	if (dev->putSuperFunc)
+-		dev->putSuperFunc(sb);
+-
+-	yaffs_Deinitialise(dev);
+-
+-	yaffs_GrossUnlock(dev);
+-
+-	/* we assume this is protected by lock_kernel() in mount/umount */
+-	ylist_del(&dev->devList);
+-
+-	if (dev->spareBuffer) {
+-		YFREE(dev->spareBuffer);
+-		dev->spareBuffer = NULL;
+-	}
+-
+-	kfree(dev);
+-}
+-
+-
+-static void yaffs_MTDPutSuper(struct super_block *sb)
+-{
+-	struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice;
+-
+-	if (mtd->sync)
+-		mtd->sync(mtd);
+-
+-	put_mtd_device(mtd);
+-}
+-
+-
+-static void yaffs_MarkSuperBlockDirty(void *vsb)
+-{
+-	struct super_block *sb = (struct super_block *)vsb;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb));
+-	if (sb)
+-		sb->s_dirt = 1;
+-}
+-
+-typedef struct {
+-	int inband_tags;
+-	int skip_checkpoint_read;
+-	int skip_checkpoint_write;
+-	int no_cache;
+-} yaffs_options;
+-
+-#define MAX_OPT_LEN 20
+-static int yaffs_parse_options(yaffs_options *options, const char *options_str)
+-{
+-	char cur_opt[MAX_OPT_LEN + 1];
+-	int p;
+-	int error = 0;
+-
+-	/* Parse through the options which is a comma seperated list */
+-
+-	while (options_str && *options_str && !error) {
+-		memset(cur_opt, 0, MAX_OPT_LEN + 1);
+-		p = 0;
+-
+-		while (*options_str && *options_str != ',') {
+-			if (p < MAX_OPT_LEN) {
+-				cur_opt[p] = *options_str;
+-				p++;
+-			}
+-			options_str++;
+-		}
+-
+-		if (!strcmp(cur_opt, "inband-tags"))
+-			options->inband_tags = 1;
+-		else if (!strcmp(cur_opt, "no-cache"))
+-			options->no_cache = 1;
+-		else if (!strcmp(cur_opt, "no-checkpoint-read"))
+-			options->skip_checkpoint_read = 1;
+-		else if (!strcmp(cur_opt, "no-checkpoint-write"))
+-			options->skip_checkpoint_write = 1;
+-		else if (!strcmp(cur_opt, "no-checkpoint")) {
+-			options->skip_checkpoint_read = 1;
+-			options->skip_checkpoint_write = 1;
+-		} else {
+-			printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",
+-					cur_opt);
+-			error = 1;
+-		}
+-	}
+-
+-	return error;
+-}
+-
+-static struct super_block *yaffs_internal_read_super(int yaffsVersion,
+-						struct super_block *sb,
+-						void *data, int silent)
+-{
+-	int nBlocks;
+-	struct inode *inode = NULL;
+-	struct dentry *root;
+-	yaffs_Device *dev = 0;
+-	char devname_buf[BDEVNAME_SIZE + 1];
+-	struct mtd_info *mtd;
+-	int err;
+-	char *data_str = (char *)data;
+-
+-	yaffs_options options;
+-
+-	sb->s_magic = YAFFS_MAGIC;
+-	sb->s_op = &yaffs_super_ops;
+-	sb->s_flags |= MS_NOATIME;
+-
+-	if (!sb)
+-		printk(KERN_INFO "yaffs: sb is NULL\n");
+-	else if (!sb->s_dev)
+-		printk(KERN_INFO "yaffs: sb->s_dev is NULL\n");
+-	else if (!yaffs_devname(sb, devname_buf))
+-		printk(KERN_INFO "yaffs: devname is NULL\n");
+-	else
+-		printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n",
+-		       sb->s_dev,
+-		       yaffs_devname(sb, devname_buf));
+-
+-	if (!data_str)
+-		data_str = "";
+-
+-	printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str);
+-
+-	memset(&options, 0, sizeof(options));
+-
+-	if (yaffs_parse_options(&options, data_str)) {
+-		/* Option parsing failed */
+-		return NULL;
+-	}
+-
+-
+-	sb->s_blocksize = PAGE_CACHE_SIZE;
+-	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+-	T(YAFFS_TRACE_OS, ("yaffs_read_super: Using yaffs%d\n", yaffsVersion));
+-	T(YAFFS_TRACE_OS,
+-	  ("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize)));
+-
+-#ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY
+-	T(YAFFS_TRACE_OS,
+-	  ("yaffs: Write verification disabled. All guarantees "
+-	   "null and void\n"));
+-#endif
+-
+-	T(YAFFS_TRACE_ALWAYS, ("yaffs: Attempting MTD mount on %u.%u, "
+-			       "\"%s\"\n",
+-			       MAJOR(sb->s_dev), MINOR(sb->s_dev),
+-			       yaffs_devname(sb, devname_buf)));
+-
+-	/* Check it's an mtd device..... */
+-	if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR)
+-		return NULL;	/* This isn't an mtd device */
+-
+-	/* Get the device */
+-	mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
+-	if (!mtd) {
+-		T(YAFFS_TRACE_ALWAYS,
+-		  ("yaffs: MTD device #%u doesn't appear to exist\n",
+-		   MINOR(sb->s_dev)));
+-		return NULL;
+-	}
+-	/* Check it's NAND */
+-	if (mtd->type != MTD_NANDFLASH) {
+-		T(YAFFS_TRACE_ALWAYS,
+-		  ("yaffs: MTD device is not NAND it's type %d\n", mtd->type));
+-		return NULL;
+-	}
+-
+-	T(YAFFS_TRACE_OS, (" erase %p\n", mtd->erase));
+-	T(YAFFS_TRACE_OS, (" read %p\n", mtd->read));
+-	T(YAFFS_TRACE_OS, (" write %p\n", mtd->write));
+-	T(YAFFS_TRACE_OS, (" readoob %p\n", mtd->read_oob));
+-	T(YAFFS_TRACE_OS, (" writeoob %p\n", mtd->write_oob));
+-	T(YAFFS_TRACE_OS, (" block_isbad %p\n", mtd->block_isbad));
+-	T(YAFFS_TRACE_OS, (" block_markbad %p\n", mtd->block_markbad));
+-	T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd)));
+-	T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize));
+-	T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize));
+-#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
+-	T(YAFFS_TRACE_OS, (" size %u\n", mtd->size));
+-#else
+-	T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size));
+-#endif
+-
+-#ifdef CONFIG_YAFFS_AUTO_YAFFS2
+-
+-	if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) {
+-		T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n"));
+-		yaffsVersion = 2;
+-	}
+-
+-	/* Added NCB 26/5/2006 for completeness */
+-	if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) {
+-		T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n"));
+-		yaffsVersion = 1;
+-	}
+-
+-#endif
+-
+-	if (yaffsVersion == 2) {
+-		/* Check for version 2 style functions */
+-		if (!mtd->erase ||
+-		    !mtd->block_isbad ||
+-		    !mtd->block_markbad ||
+-		    !mtd->read ||
+-		    !mtd->write ||
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-		    !mtd->read_oob || !mtd->write_oob) {
+-#else
+-		    !mtd->write_ecc ||
+-		    !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
+-#endif
+-			T(YAFFS_TRACE_ALWAYS,
+-			  ("yaffs: MTD device does not support required "
+-			   "functions\n"));;
+-			return NULL;
+-		}
+-
+-		if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
+-		    mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
+-		    !options.inband_tags) {
+-			T(YAFFS_TRACE_ALWAYS,
+-			  ("yaffs: MTD device does not have the "
+-			   "right page sizes\n"));
+-			return NULL;
+-		}
+-	} else {
+-		/* Check for V1 style functions */
+-		if (!mtd->erase ||
+-		    !mtd->read ||
+-		    !mtd->write ||
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-		    !mtd->read_oob || !mtd->write_oob) {
+-#else
+-		    !mtd->write_ecc ||
+-		    !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
+-#endif
+-			T(YAFFS_TRACE_ALWAYS,
+-			  ("yaffs: MTD device does not support required "
+-			   "functions\n"));;
+-			return NULL;
+-		}
+-
+-		if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK ||
+-		    mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
+-			T(YAFFS_TRACE_ALWAYS,
+-			  ("yaffs: MTD device does not support have the "
+-			   "right page sizes\n"));
+-			return NULL;
+-		}
+-	}
+-
+-	/* OK, so if we got here, we have an MTD that's NAND and looks
+-	 * like it has the right capabilities
+-	 * Set the yaffs_Device up for mtd
+-	 */
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-	sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
+-#else
+-	sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL);
+-#endif
+-	if (!dev) {
+-		/* Deep shit could not allocate device structure */
+-		T(YAFFS_TRACE_ALWAYS,
+-		  ("yaffs_read_super: Failed trying to allocate "
+-		   "yaffs_Device. \n"));
+-		return NULL;
+-	}
+-
+-	memset(dev, 0, sizeof(yaffs_Device));
+-	dev->genericDevice = mtd;
+-	dev->name = mtd->name;
+-
+-	/* Set up the memory size parameters.... */
+-
+-	nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
+-
+-	dev->startBlock = 0;
+-	dev->endBlock = nBlocks - 1;
+-	dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;
+-	dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK;
+-	dev->nReservedBlocks = 5;
+-	dev->nShortOpCaches = (options.no_cache) ? 0 : 10;
+-	dev->inbandTags = options.inband_tags;
+-
+-	/* ... and the functions. */
+-	if (yaffsVersion == 2) {
+-		dev->writeChunkWithTagsToNAND =
+-		    nandmtd2_WriteChunkWithTagsToNAND;
+-		dev->readChunkWithTagsFromNAND =
+-		    nandmtd2_ReadChunkWithTagsFromNAND;
+-		dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad;
+-		dev->queryNANDBlock = nandmtd2_QueryNANDBlock;
+-		dev->spareBuffer = YMALLOC(mtd->oobsize);
+-		dev->isYaffs2 = 1;
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-		dev->totalBytesPerChunk = mtd->writesize;
+-		dev->nChunksPerBlock = mtd->erasesize / mtd->writesize;
+-#else
+-		dev->totalBytesPerChunk = mtd->oobblock;
+-		dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock;
+-#endif
+-		nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize);
+-
+-		dev->startBlock = 0;
+-		dev->endBlock = nBlocks - 1;
+-	} else {
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-		/* use the MTD interface in yaffs_mtdif1.c */
+-		dev->writeChunkWithTagsToNAND =
+-			nandmtd1_WriteChunkWithTagsToNAND;
+-		dev->readChunkWithTagsFromNAND =
+-			nandmtd1_ReadChunkWithTagsFromNAND;
+-		dev->markNANDBlockBad = nandmtd1_MarkNANDBlockBad;
+-		dev->queryNANDBlock = nandmtd1_QueryNANDBlock;
+-#else
+-		dev->writeChunkToNAND = nandmtd_WriteChunkToNAND;
+-		dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND;
+-#endif
+-		dev->isYaffs2 = 0;
+-	}
+-	/* ... and common functions */
+-	dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND;
+-	dev->initialiseNAND = nandmtd_InitialiseNAND;
+-
+-	dev->putSuperFunc = yaffs_MTDPutSuper;
+-
+-	dev->superBlock = (void *)sb;
+-	dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty;
+-
+-
+-#ifndef CONFIG_YAFFS_DOES_ECC
+-	dev->useNANDECC = 1;
+-#endif
+-
+-#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES
+-	dev->wideTnodesDisabled = 1;
+-#endif
+-
+-	dev->skipCheckpointRead = options.skip_checkpoint_read;
+-	dev->skipCheckpointWrite = options.skip_checkpoint_write;
+-
+-	/* we assume this is protected by lock_kernel() in mount/umount */
+-	ylist_add_tail(&dev->devList, &yaffs_dev_list);
+-
+-	init_MUTEX(&dev->grossLock);
+-
+-	yaffs_GrossLock(dev);
+-
+-	err = yaffs_GutsInitialise(dev);
+-
+-	T(YAFFS_TRACE_OS,
+-	  ("yaffs_read_super: guts initialised %s\n",
+-	   (err == YAFFS_OK) ? "OK" : "FAILED"));
+-
+-	/* Release lock before yaffs_get_inode() */
+-	yaffs_GrossUnlock(dev);
+-
+-	/* Create root inode */
+-	if (err == YAFFS_OK)
+-		inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0,
+-					yaffs_Root(dev));
+-
+-	if (!inode)
+-		return NULL;
+-
+-	inode->i_op = &yaffs_dir_inode_operations;
+-	inode->i_fop = &yaffs_dir_operations;
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_read_super: got root inode\n"));
+-
+-	root = d_alloc_root(inode);
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_read_super: d_alloc_root done\n"));
+-
+-	if (!root) {
+-		iput(inode);
+-		return NULL;
+-	}
+-	sb->s_root = root;
+-	sb->s_dirt = !dev->isCheckpointed;
+-	T(YAFFS_TRACE_ALWAYS,
+-	  ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed));
+-
+-	T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n"));
+-	return sb;
+-}
+-
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
+-					 int silent)
+-{
+-	return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
+-}
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs_read_super(struct file_system_type *fs,
+-			    int flags, const char *dev_name,
+-			    void *data, struct vfsmount *mnt)
+-{
+-
+-	return get_sb_bdev(fs, flags, dev_name, data,
+-			   yaffs_internal_read_super_mtd, mnt);
+-}
+-#else
+-static struct super_block *yaffs_read_super(struct file_system_type *fs,
+-					    int flags, const char *dev_name,
+-					    void *data)
+-{
+-
+-	return get_sb_bdev(fs, flags, dev_name, data,
+-			   yaffs_internal_read_super_mtd);
+-}
+-#endif
+-
+-static struct file_system_type yaffs_fs_type = {
+-	.owner = THIS_MODULE,
+-	.name = "yaffs",
+-	.get_sb = yaffs_read_super,
+-	.kill_sb = kill_block_super,
+-	.fs_flags = FS_REQUIRES_DEV,
+-};
+-#else
+-static struct super_block *yaffs_read_super(struct super_block *sb, void *data,
+-					    int silent)
+-{
+-	return yaffs_internal_read_super(1, sb, data, silent);
+-}
+-
+-static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super,
+-		      FS_REQUIRES_DEV);
+-#endif
+-
+-
+-#ifdef CONFIG_YAFFS_YAFFS2
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+-static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
+-					  int silent)
+-{
+-	return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
+-}
+-
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-static int yaffs2_read_super(struct file_system_type *fs,
+-			int flags, const char *dev_name, void *data,
+-			struct vfsmount *mnt)
+-{
+-	return get_sb_bdev(fs, flags, dev_name, data,
+-			yaffs2_internal_read_super_mtd, mnt);
+-}
+-#else
+-static struct super_block *yaffs2_read_super(struct file_system_type *fs,
+-					     int flags, const char *dev_name,
+-					     void *data)
+-{
+-
+-	return get_sb_bdev(fs, flags, dev_name, data,
+-			   yaffs2_internal_read_super_mtd);
+-}
+-#endif
+-
+-static struct file_system_type yaffs2_fs_type = {
+-	.owner = THIS_MODULE,
+-	.name = "yaffs2",
+-	.get_sb = yaffs2_read_super,
+-	.kill_sb = kill_block_super,
+-	.fs_flags = FS_REQUIRES_DEV,
+-};
+-#else
+-static struct super_block *yaffs2_read_super(struct super_block *sb,
+-					     void *data, int silent)
+-{
+-	return yaffs_internal_read_super(2, sb, data, silent);
+-}
+-
+-static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super,
+-		      FS_REQUIRES_DEV);
+-#endif
+-
+-#endif				/* CONFIG_YAFFS_YAFFS2 */
+-
+-static struct proc_dir_entry *my_proc_entry;
+-
+-static char *yaffs_dump_dev(char *buf, yaffs_Device * dev)
+-{
+-	buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock);
+-	buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock);
+-	buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk);
+-	buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk);
+-	buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits);
+-	buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize);
+-	buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks);
+-	buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks);
+-	buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint);
+-	buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated);
+-	buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes);
+-	buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated);
+-	buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects);
+-	buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks);
+-	buf += sprintf(buf, "nPageWrites........ %d\n", dev->nPageWrites);
+-	buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads);
+-	buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures);
+-	buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies);
+-	buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections);
+-	buf += sprintf(buf, "passiveGCs......... %d\n",
+-		    dev->passiveGarbageCollections);
+-	buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites);
+-	buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches);
+-	buf += sprintf(buf, "nRetireBlocks...... %d\n", dev->nRetiredBlocks);
+-	buf += sprintf(buf, "eccFixed........... %d\n", dev->eccFixed);
+-	buf += sprintf(buf, "eccUnfixed......... %d\n", dev->eccUnfixed);
+-	buf += sprintf(buf, "tagsEccFixed....... %d\n", dev->tagsEccFixed);
+-	buf += sprintf(buf, "tagsEccUnfixed..... %d\n", dev->tagsEccUnfixed);
+-	buf += sprintf(buf, "cacheHits.......... %d\n", dev->cacheHits);
+-	buf += sprintf(buf, "nDeletedFiles...... %d\n", dev->nDeletedFiles);
+-	buf += sprintf(buf, "nUnlinkedFiles..... %d\n", dev->nUnlinkedFiles);
+-	buf +=
+-	    sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions);
+-	buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC);
+-	buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2);
+-	buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags);
+-
+-	return buf;
+-}
+-
+-static int yaffs_proc_read(char *page,
+-			   char **start,
+-			   off_t offset, int count, int *eof, void *data)
+-{
+-	struct ylist_head *item;
+-	char *buf = page;
+-	int step = offset;
+-	int n = 0;
+-
+-	/* Get proc_file_read() to step 'offset' by one on each sucessive call.
+-	 * We use 'offset' (*ppos) to indicate where we are in devList.
+-	 * This also assumes the user has posted a read buffer large
+-	 * enough to hold the complete output; but that's life in /proc.
+-	 */
+-
+-	*(int *)start = 1;
+-
+-	/* Print header first */
+-	if (step == 0) {
+-		buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__
+-			       "\n%s\n%s\n", yaffs_fs_c_version,
+-			       yaffs_guts_c_version);
+-	}
+-
+-	/* hold lock_kernel while traversing yaffs_dev_list */
+-	lock_kernel();
+-
+-	/* Locate and print the Nth entry.  Order N-squared but N is small. */
+-	ylist_for_each(item, &yaffs_dev_list) {
+-		yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList);
+-		if (n < step) {
+-			n++;
+-			continue;
+-		}
+-		buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->name);
+-		buf = yaffs_dump_dev(buf, dev);
+-		break;
+-	}
+-	unlock_kernel();
+-
+-	return buf - page < count ? buf - page : count;
+-}
+-
+-/**
+- * Set the verbosity of the warnings and error messages.
+- *
+- * Note that the names can only be a..z or _ with the current code.
+- */
+-
+-static struct {
+-	char *mask_name;
+-	unsigned mask_bitfield;
+-} mask_flags[] = {
+-	{"allocate", YAFFS_TRACE_ALLOCATE},
+-	{"always", YAFFS_TRACE_ALWAYS},
+-	{"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
+-	{"buffers", YAFFS_TRACE_BUFFERS},
+-	{"bug", YAFFS_TRACE_BUG},
+-	{"checkpt", YAFFS_TRACE_CHECKPOINT},
+-	{"deletion", YAFFS_TRACE_DELETION},
+-	{"erase", YAFFS_TRACE_ERASE},
+-	{"error", YAFFS_TRACE_ERROR},
+-	{"gc_detail", YAFFS_TRACE_GC_DETAIL},
+-	{"gc", YAFFS_TRACE_GC},
+-	{"mtd", YAFFS_TRACE_MTD},
+-	{"nandaccess", YAFFS_TRACE_NANDACCESS},
+-	{"os", YAFFS_TRACE_OS},
+-	{"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
+-	{"scan", YAFFS_TRACE_SCAN},
+-	{"tracing", YAFFS_TRACE_TRACING},
+-
+-	{"verify", YAFFS_TRACE_VERIFY},
+-	{"verify_nand", YAFFS_TRACE_VERIFY_NAND},
+-	{"verify_full", YAFFS_TRACE_VERIFY_FULL},
+-	{"verify_all", YAFFS_TRACE_VERIFY_ALL},
+-
+-	{"write", YAFFS_TRACE_WRITE},
+-	{"all", 0xffffffff},
+-	{"none", 0},
+-	{NULL, 0},
+-};
+-
+-#define MAX_MASK_NAME_LENGTH 40
+-static int yaffs_proc_write(struct file *file, const char *buf,
+-					 unsigned long count, void *data)
+-{
+-	unsigned rg = 0, mask_bitfield;
+-	char *end;
+-	char *mask_name;
+-	const char *x;
+-	char substring[MAX_MASK_NAME_LENGTH + 1];
+-	int i;
+-	int done = 0;
+-	int add, len = 0;
+-	int pos = 0;
+-
+-	rg = yaffs_traceMask;
+-
+-	while (!done && (pos < count)) {
+-		done = 1;
+-		while ((pos < count) && isspace(buf[pos]))
+-			pos++;
+-
+-		switch (buf[pos]) {
+-		case '+':
+-		case '-':
+-		case '=':
+-			add = buf[pos];
+-			pos++;
+-			break;
+-
+-		default:
+-			add = ' ';
+-			break;
+-		}
+-		mask_name = NULL;
+-
+-		mask_bitfield = simple_strtoul(buf + pos, &end, 0);
+-
+-		if (end > buf + pos) {
+-			mask_name = "numeral";
+-			len = end - (buf + pos);
+-			pos += len;
+-			done = 0;
+-		} else {
+-			for (x = buf + pos, i = 0;
+-			    (*x == '_' || (*x >= 'a' && *x <= 'z')) &&
+-			    i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
+-				substring[i] = *x;
+-			substring[i] = '\0';
+-
+-			for (i = 0; mask_flags[i].mask_name != NULL; i++) {
+-				if (strcmp(substring, mask_flags[i].mask_name) == 0) {
+-					mask_name = mask_flags[i].mask_name;
+-					mask_bitfield = mask_flags[i].mask_bitfield;
+-					done = 0;
+-					break;
+-				}
+-			}
+-		}
+-
+-		if (mask_name != NULL) {
+-			done = 0;
+-			switch (add) {
+-			case '-':
+-				rg &= ~mask_bitfield;
+-				break;
+-			case '+':
+-				rg |= mask_bitfield;
+-				break;
+-			case '=':
+-				rg = mask_bitfield;
+-				break;
+-			default:
+-				rg |= mask_bitfield;
+-				break;
+-			}
+-		}
+-	}
+-
+-	yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS;
+-
+-	printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask);
+-
+-	if (rg & YAFFS_TRACE_ALWAYS) {
+-		for (i = 0; mask_flags[i].mask_name != NULL; i++) {
+-			char flag;
+-			flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-';
+-			printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
+-		}
+-	}
+-
+-	return count;
+-}
+-
+-/* Stuff to handle installation of file systems */
+-struct file_system_to_install {
+-	struct file_system_type *fst;
+-	int installed;
+-};
+-
+-static struct file_system_to_install fs_to_install[] = {
+-	{&yaffs_fs_type, 0},
+-	{&yaffs2_fs_type, 0},
+-	{NULL, 0}
+-};
+-
+-static int __init init_yaffs_fs(void)
+-{
+-	int error = 0;
+-	struct file_system_to_install *fsinst;
+-
+-	T(YAFFS_TRACE_ALWAYS,
+-	  ("yaffs " __DATE__ " " __TIME__ " Installing. \n"));
+-
+-	/* Install the proc_fs entry */
+-	my_proc_entry = create_proc_entry("yaffs",
+-					       S_IRUGO | S_IFREG,
+-					       YPROC_ROOT);
+-
+-	if (my_proc_entry) {
+-		my_proc_entry->write_proc = yaffs_proc_write;
+-		my_proc_entry->read_proc = yaffs_proc_read;
+-		my_proc_entry->data = NULL;
+-	} else
+-		return -ENOMEM;
+-
+-	/* Now add the file system entries */
+-
+-	fsinst = fs_to_install;
+-
+-	while (fsinst->fst && !error) {
+-		error = register_filesystem(fsinst->fst);
+-		if (!error)
+-			fsinst->installed = 1;
+-		fsinst++;
+-	}
+-
+-	/* Any errors? uninstall  */
+-	if (error) {
+-		fsinst = fs_to_install;
+-
+-		while (fsinst->fst) {
+-			if (fsinst->installed) {
+-				unregister_filesystem(fsinst->fst);
+-				fsinst->installed = 0;
+-			}
+-			fsinst++;
+-		}
+-	}
+-
+-	return error;
+-}
+-
+-static void __exit exit_yaffs_fs(void)
+-{
+-
+-	struct file_system_to_install *fsinst;
+-
+-	T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__
+-			       " removing. \n"));
+-
+-	remove_proc_entry("yaffs", YPROC_ROOT);
+-
+-	fsinst = fs_to_install;
+-
+-	while (fsinst->fst) {
+-		if (fsinst->installed) {
+-			unregister_filesystem(fsinst->fst);
+-			fsinst->installed = 0;
+-		}
+-		fsinst++;
+-	}
+-}
+-
+-module_init(init_yaffs_fs)
+-module_exit(exit_yaffs_fs)
+-
+-MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
+-MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006");
+-MODULE_LICENSE("GPL");
+--- a/fs/yaffs2/yaffs_getblockinfo.h
++++ b/fs/yaffs2/yaffs_getblockinfo.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -17,18 +17,19 @@
+ #define __YAFFS_GETBLOCKINFO_H__
+ 
+ #include "yaffs_guts.h"
++#include "yaffs_trace.h"
+ 
+ /* Function to manipulate block info */
+-static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk)
++static Y_INLINE yaffs_block_info_t *yaffs_get_block_info(yaffs_dev_t * dev, int blk)
+ {
+-	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
++	if (blk < dev->internal_start_block || blk > dev->internal_end_block) {
+ 		T(YAFFS_TRACE_ERROR,
+ 		  (TSTR
+ 		   ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR),
+ 		   blk));
+ 		YBUG();
+ 	}
+-	return &dev->blockInfo[blk - dev->internalStartBlock];
++	return &dev->block_info[blk - dev->internal_start_block];
+ }
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_guts.c
++++ b/fs/yaffs2/yaffs_guts.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -10,11 +10,8 @@
+  * it under the terms of the GNU General Public License version 2 as
+  * published by the Free Software Foundation.
+  */
+-
+-const char *yaffs_guts_c_version =
+-    "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $";
+-
+ #include "yportenv.h"
++#include "yaffs_trace.h"
+ 
+ #include "yaffsinterface.h"
+ #include "yaffs_guts.h"
+@@ -22,118 +19,109 @@ const char *yaffs_guts_c_version =
+ #include "yaffs_getblockinfo.h"
+ 
+ #include "yaffs_tagscompat.h"
+-#ifndef CONFIG_YAFFS_USE_OWN_SORT
+-#include "yaffs_qsort.h"
+-#endif
++
+ #include "yaffs_nand.h"
+ 
+-#include "yaffs_checkptrw.h"
++#include "yaffs_yaffs1.h"
++#include "yaffs_yaffs2.h"
++#include "yaffs_bitmap.h"
++#include "yaffs_verify.h"
+ 
+ #include "yaffs_nand.h"
+ #include "yaffs_packedtags2.h"
+ 
++#include "yaffs_nameval.h"
++#include "yaffs_allocator.h"
+ 
+-#define YAFFS_PASSIVE_GC_CHUNKS 2
++/* Note YAFFS_GC_GOOD_ENOUGH must be <= YAFFS_GC_PASSIVE_THRESHOLD */
++#define YAFFS_GC_GOOD_ENOUGH 2
++#define YAFFS_GC_PASSIVE_THRESHOLD 4
+ 
+ #include "yaffs_ecc.h"
+ 
+ 
++
+ /* Robustification (if it ever comes about...) */
+-static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND);
+-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
++static void yaffs_retire_block(yaffs_dev_t *dev, int flash_block);
++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk,
+ 		int erasedOk);
+-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk,
+ 				const __u8 *data,
+-				const yaffs_ExtendedTags *tags);
+-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+-				const yaffs_ExtendedTags *tags);
++				const yaffs_ext_tags *tags);
++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk,
++				const yaffs_ext_tags *tags);
+ 
+ /* Other local prototypes */
+-static int yaffs_UnlinkObject(yaffs_Object *obj);
+-static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj);
+-
+-static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList);
++static void yaffs_update_parent(yaffs_obj_t *obj);
++static int yaffs_unlink_obj(yaffs_obj_t *obj);
++static int yaffs_obj_cache_dirty(yaffs_obj_t *obj);
+ 
+-static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev,
++static int yaffs_write_new_chunk(yaffs_dev_t *dev,
+ 					const __u8 *buffer,
+-					yaffs_ExtendedTags *tags,
++					yaffs_ext_tags *tags,
+ 					int useReserve);
+-static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
+-				int chunkInNAND, int inScan);
+ 
+-static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
+-					yaffs_ObjectType type);
+-static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
+-				yaffs_Object *obj);
+-static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name,
+-				int force, int isShrink, int shadows);
+-static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj);
+-static int yaffs_CheckStructures(void);
+-static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
+-			int chunkOffset, int *limit);
+-static int yaffs_DoGenericObjectDeletion(yaffs_Object *in);
+-
+-static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo);
+ 
++static yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number,
++					yaffs_obj_type type);
+ 
+-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
+-				int chunkInNAND);
+ 
+-static int yaffs_UnlinkWorker(yaffs_Object *obj);
++static int yaffs_apply_xattrib_mod(yaffs_obj_t *obj, char *buffer, yaffs_xattr_mod *xmod);
+ 
+-static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
+-			int chunkInObject);
++static void yaffs_remove_obj_from_dir(yaffs_obj_t *obj);
++static int yaffs_check_structures(void);
++static int yaffs_generic_obj_del(yaffs_obj_t *in);
++
++static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev,
++				int nand_chunk);
+ 
+-static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
+-				yaffs_BlockInfo **blockUsedPtr);
++static int yaffs_unlink_worker(yaffs_obj_t *obj);
+ 
+-static void yaffs_VerifyFreeChunks(yaffs_Device *dev);
++static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id,
++			int chunkInObject);
+ 
+-static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in);
++static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve,
++				yaffs_block_info_t **blockUsedPtr);
+ 
+-static void yaffs_VerifyDirectory(yaffs_Object *directory);
+-#ifdef YAFFS_PARANOID
+-static int yaffs_CheckFileSanity(yaffs_Object *in);
+-#else
+-#define yaffs_CheckFileSanity(in)
+-#endif
++static void yaffs_check_obj_details_loaded(yaffs_obj_t *in);
++
++static void yaffs_invalidate_whole_cache(yaffs_obj_t *in);
++static void yaffs_invalidate_chunk_cache(yaffs_obj_t *object, int chunk_id);
+ 
+-static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in);
+-static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId);
++static int yaffs_find_chunk_in_file(yaffs_obj_t *in, int inode_chunk,
++				yaffs_ext_tags *tags);
+ 
+-static void yaffs_InvalidateCheckpoint(yaffs_Device *dev);
++static int yaffs_verify_chunk_written(yaffs_dev_t *dev,
++					int nand_chunk,
++					const __u8 *data,
++					yaffs_ext_tags *tags);
+ 
+-static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
+-				yaffs_ExtendedTags *tags);
+ 
+-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
+-		unsigned pos);
+-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
+-					yaffs_FileStructure *fStruct,
+-					__u32 chunkId);
++static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize);
++static void yaffs_load_oh_from_name(yaffs_dev_t *dev,YCHAR *ohName, const YCHAR *name);
+ 
+ 
+ /* Function to calculate chunk and offset */
+ 
+-static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut,
++static void yaffs_addr_to_chunk(yaffs_dev_t *dev, loff_t addr, int *chunkOut,
+ 		__u32 *offsetOut)
+ {
+ 	int chunk;
+ 	__u32 offset;
+ 
+-	chunk  = (__u32)(addr >> dev->chunkShift);
++	chunk  = (__u32)(addr >> dev->chunk_shift);
+ 
+-	if (dev->chunkDiv == 1) {
++	if (dev->chunk_div == 1) {
+ 		/* easy power of 2 case */
+-		offset = (__u32)(addr & dev->chunkMask);
++		offset = (__u32)(addr & dev->chunk_mask);
+ 	} else {
+ 		/* Non power-of-2 case */
+ 
+ 		loff_t chunkBase;
+ 
+-		chunk /= dev->chunkDiv;
++		chunk /= dev->chunk_div;
+ 
+-		chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk;
++		chunkBase = ((loff_t)chunk) * dev->data_bytes_per_chunk;
+ 		offset = (__u32)(addr - chunkBase);
+ 	}
+ 
+@@ -172,7 +160,7 @@ static __u32 ShiftsGE(__u32 x)
+ 
+ static __u32 Shifts(__u32 x)
+ {
+-	int nShifts;
++	__u32 nShifts;
+ 
+ 	nShifts =  0;
+ 
+@@ -193,49 +181,49 @@ static __u32 Shifts(__u32 x)
+  * Temporary buffer manipulations.
+  */
+ 
+-static int yaffs_InitialiseTempBuffers(yaffs_Device *dev)
++static int yaffs_init_tmp_buffers(yaffs_dev_t *dev)
+ {
+ 	int i;
+ 	__u8 *buf = (__u8 *)1;
+ 
+-	memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer));
++	memset(dev->temp_buffer, 0, sizeof(dev->temp_buffer));
+ 
+ 	for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) {
+-		dev->tempBuffer[i].line = 0;	/* not in use */
+-		dev->tempBuffer[i].buffer = buf =
+-		    YMALLOC_DMA(dev->totalBytesPerChunk);
++		dev->temp_buffer[i].line = 0;	/* not in use */
++		dev->temp_buffer[i].buffer = buf =
++		    YMALLOC_DMA(dev->param.total_bytes_per_chunk);
+ 	}
+ 
+ 	return buf ? YAFFS_OK : YAFFS_FAIL;
+ }
+ 
+-__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo)
++__u8 *yaffs_get_temp_buffer(yaffs_dev_t *dev, int line_no)
+ {
+ 	int i, j;
+ 
+-	dev->tempInUse++;
+-	if (dev->tempInUse > dev->maxTemp)
+-		dev->maxTemp = dev->tempInUse;
++	dev->temp_in_use++;
++	if (dev->temp_in_use > dev->max_temp)
++		dev->max_temp = dev->temp_in_use;
+ 
+ 	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
+-		if (dev->tempBuffer[i].line == 0) {
+-			dev->tempBuffer[i].line = lineNo;
+-			if ((i + 1) > dev->maxTemp) {
+-				dev->maxTemp = i + 1;
++		if (dev->temp_buffer[i].line == 0) {
++			dev->temp_buffer[i].line = line_no;
++			if ((i + 1) > dev->max_temp) {
++				dev->max_temp = i + 1;
+ 				for (j = 0; j <= i; j++)
+-					dev->tempBuffer[j].maxLine =
+-					    dev->tempBuffer[j].line;
++					dev->temp_buffer[j].max_line =
++					    dev->temp_buffer[j].line;
+ 			}
+ 
+-			return dev->tempBuffer[i].buffer;
++			return dev->temp_buffer[i].buffer;
+ 		}
+ 	}
+ 
+ 	T(YAFFS_TRACE_BUFFERS,
+ 	  (TSTR("Out of temp buffers at line %d, other held by lines:"),
+-	   lineNo));
++	   line_no));
+ 	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++)
+-		T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line));
++		T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->temp_buffer[i].line));
+ 
+ 	T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR)));
+ 
+@@ -244,21 +232,21 @@ __u8 *yaffs_GetTempBuffer(yaffs_Device *
+ 	 * This is not good.
+ 	 */
+ 
+-	dev->unmanagedTempAllocations++;
+-	return YMALLOC(dev->nDataBytesPerChunk);
++	dev->unmanaged_buffer_allocs++;
++	return YMALLOC(dev->data_bytes_per_chunk);
+ 
+ }
+ 
+-void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer,
+-				    int lineNo)
++void yaffs_release_temp_buffer(yaffs_dev_t *dev, __u8 *buffer,
++				    int line_no)
+ {
+ 	int i;
+ 
+-	dev->tempInUse--;
++	dev->temp_in_use--;
+ 
+ 	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
+-		if (dev->tempBuffer[i].buffer == buffer) {
+-			dev->tempBuffer[i].line = 0;
++		if (dev->temp_buffer[i].buffer == buffer) {
++			dev->temp_buffer[i].line = 0;
+ 			return;
+ 		}
+ 	}
+@@ -267,9 +255,9 @@ void yaffs_ReleaseTempBuffer(yaffs_Devic
+ 		/* assume it is an unmanaged one. */
+ 		T(YAFFS_TRACE_BUFFERS,
+ 		  (TSTR("Releasing unmanaged temp buffer in line %d" TENDSTR),
+-		   lineNo));
++		   line_no));
+ 		YFREE(buffer);
+-		dev->unmanagedTempDeallocations++;
++		dev->unmanaged_buffer_deallocs++;
+ 	}
+ 
+ }
+@@ -277,21 +265,21 @@ void yaffs_ReleaseTempBuffer(yaffs_Devic
+ /*
+  * Determine if we have a managed buffer.
+  */
+-int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer)
++int yaffs_is_managed_tmp_buffer(yaffs_dev_t *dev, const __u8 *buffer)
+ {
+ 	int i;
+ 
+ 	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
+-		if (dev->tempBuffer[i].buffer == buffer)
++		if (dev->temp_buffer[i].buffer == buffer)
+ 			return 1;
+ 	}
+ 
+-	for (i = 0; i < dev->nShortOpCaches; i++) {
+-		if (dev->srCache[i].data == buffer)
++	for (i = 0; i < dev->param.n_caches; i++) {
++		if (dev->cache[i].data == buffer)
+ 			return 1;
+ 	}
+ 
+-	if (buffer == dev->checkpointBuffer)
++	if (buffer == dev->checkpt_buffer)
+ 		return 1;
+ 
+ 	T(YAFFS_TRACE_ALWAYS,
+@@ -299,6397 +287,4205 @@ int yaffs_IsManagedTempBuffer(yaffs_Devi
+ 	return 0;
+ }
+ 
+-
+-
+ /*
+- * Chunk bitmap manipulations
++ * Verification code
+  */
+ 
+-static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk)
+-{
+-	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
+-		T(YAFFS_TRACE_ERROR,
+-			(TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
+-			blk));
+-		YBUG();
+-	}
+-	return dev->chunkBits +
+-		(dev->chunkBitmapStride * (blk - dev->internalStartBlock));
+-}
+ 
+-static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk)
+-{
+-	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock ||
+-			chunk < 0 || chunk >= dev->nChunksPerBlock) {
+-		T(YAFFS_TRACE_ERROR,
+-		(TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),
+-			blk, chunk));
+-		YBUG();
+-	}
+-}
+ 
+-static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk)
+-{
+-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+ 
+-	memset(blkBits, 0, dev->chunkBitmapStride);
+-}
++/*
++ *  Simple hash function. Needs to have a reasonable spread
++ */
+ 
+-static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk)
++static Y_INLINE int yaffs_hash_fn(int n)
+ {
+-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+-
+-	yaffs_VerifyChunkBitId(dev, blk, chunk);
+-
+-	blkBits[chunk / 8] &= ~(1 << (chunk & 7));
++	n = abs(n);
++	return n % YAFFS_NOBJECT_BUCKETS;
+ }
+ 
+-static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk)
+-{
+-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+-
+-	yaffs_VerifyChunkBitId(dev, blk, chunk);
+-
+-	blkBits[chunk / 8] |= (1 << (chunk & 7));
+-}
++/*
++ * Access functions to useful fake objects.
++ * Note that root might have a presence in NAND if permissions are set.
++ */
+ 
+-static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk)
++yaffs_obj_t *yaffs_root(yaffs_dev_t *dev)
+ {
+-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+-	yaffs_VerifyChunkBitId(dev, blk, chunk);
+-
+-	return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
++	return dev->root_dir;
+ }
+ 
+-static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk)
++yaffs_obj_t *yaffs_lost_n_found(yaffs_dev_t *dev)
+ {
+-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+-	int i;
+-	for (i = 0; i < dev->chunkBitmapStride; i++) {
+-		if (*blkBits)
+-			return 1;
+-		blkBits++;
+-	}
+-	return 0;
++	return dev->lost_n_found;
+ }
+ 
+-static int yaffs_CountChunkBits(yaffs_Device *dev, int blk)
+-{
+-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
+-	int i;
+-	int n = 0;
+-	for (i = 0; i < dev->chunkBitmapStride; i++) {
+-		__u8 x = *blkBits;
+-		while (x) {
+-			if (x & 1)
+-				n++;
+-			x >>= 1;
+-		}
+-
+-		blkBits++;
+-	}
+-	return n;
+-}
+ 
+ /*
+- * Verification code
++ *  Erased NAND checking functions
+  */
+ 
+-static int yaffs_SkipVerification(yaffs_Device *dev)
+-{
+-	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL));
+-}
+-
+-static int yaffs_SkipFullVerification(yaffs_Device *dev)
+-{
+-	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL));
+-}
+-
+-static int yaffs_SkipNANDVerification(yaffs_Device *dev)
++int yaffs_check_ff(__u8 *buffer, int n_bytes)
+ {
+-	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND));
++	/* Horrible, slow implementation */
++	while (n_bytes--) {
++		if (*buffer != 0xFF)
++			return 0;
++		buffer++;
++	}
++	return 1;
+ }
+ 
+-static const char *blockStateName[] = {
+-"Unknown",
+-"Needs scanning",
+-"Scanning",
+-"Empty",
+-"Allocating",
+-"Full",
+-"Dirty",
+-"Checkpoint",
+-"Collecting",
+-"Dead"
+-};
+-
+-static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n)
++static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev,
++				int nand_chunk)
+ {
+-	int actuallyUsed;
+-	int inUse;
++	int retval = YAFFS_OK;
++	__u8 *data = yaffs_get_temp_buffer(dev, __LINE__);
++	yaffs_ext_tags tags;
++	int result;
+ 
+-	if (yaffs_SkipVerification(dev))
+-		return;
++	result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags);
+ 
+-	/* Report illegal runtime states */
+-	if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
+-		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState));
++	if (tags.ecc_result > YAFFS_ECC_RESULT_NO_ERROR)
++		retval = YAFFS_FAIL;
+ 
+-	switch (bi->blockState) {
+-	case YAFFS_BLOCK_STATE_UNKNOWN:
+-	case YAFFS_BLOCK_STATE_SCANNING:
+-	case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
+-		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR),
+-		n, blockStateName[bi->blockState]));
++	if (!yaffs_check_ff(data, dev->data_bytes_per_chunk) || tags.chunk_used) {
++		T(YAFFS_TRACE_NANDACCESS,
++		  (TSTR("Chunk %d not erased" TENDSTR), nand_chunk));
++		retval = YAFFS_FAIL;
+ 	}
+ 
+-	/* Check pages in use and soft deletions are legal */
+-
+-	actuallyUsed = bi->pagesInUse - bi->softDeletions;
+-
+-	if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
+-	   bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock ||
+-	   actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock)
+-		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR),
+-		n, bi->pagesInUse, bi->softDeletions));
+-
++	yaffs_release_temp_buffer(dev, data, __LINE__);
+ 
+-	/* Check chunk bitmap legal */
+-	inUse = yaffs_CountChunkBits(dev, n);
+-	if (inUse != bi->pagesInUse)
+-		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR),
+-			n, bi->pagesInUse, inUse));
++	return retval;
+ 
+-	/* Check that the sequence number is valid.
+-	 * Ten million is legal, but is very unlikely
+-	 */
+-	if (dev->isYaffs2 &&
+-	   (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) &&
+-	   (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000))
+-		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR),
+-		n, bi->sequenceNumber));
+ }
+ 
+-static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi,
+-		int n)
++
++static int yaffs_verify_chunk_written(yaffs_dev_t *dev,
++					int nand_chunk,
++					const __u8 *data,
++					yaffs_ext_tags *tags)
+ {
+-	yaffs_VerifyBlock(dev, bi, n);
++	int retval = YAFFS_OK;
++	yaffs_ext_tags tempTags;
++	__u8 *buffer = yaffs_get_temp_buffer(dev,__LINE__);
++	int result;
++	
++	result = yaffs_rd_chunk_tags_nand(dev,nand_chunk,buffer,&tempTags);
++	if(memcmp(buffer,data,dev->data_bytes_per_chunk) ||
++		tempTags.obj_id != tags->obj_id ||
++		tempTags.chunk_id  != tags->chunk_id ||
++		tempTags.n_bytes != tags->n_bytes)
++		retval = YAFFS_FAIL;
+ 
+-	/* After collection the block should be in the erased state */
+-	/* This will need to change if we do partial gc */
++	yaffs_release_temp_buffer(dev, buffer, __LINE__);
+ 
+-	if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING &&
+-			bi->blockState != YAFFS_BLOCK_STATE_EMPTY) {
+-		T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
+-			n, bi->blockState));
+-	}
++	return retval;
+ }
+ 
+-static void yaffs_VerifyBlocks(yaffs_Device *dev)
++static int yaffs_write_new_chunk(struct yaffs_dev_s *dev,
++					const __u8 *data,
++					yaffs_ext_tags *tags,
++					int useReserve)
+ {
+-	int i;
+-	int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES];
+-	int nIllegalBlockStates = 0;
+-
+-	if (yaffs_SkipVerification(dev))
+-		return;
+-
+-	memset(nBlocksPerState, 0, sizeof(nBlocksPerState));
+-
+-	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
+-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i);
+-		yaffs_VerifyBlock(dev, bi, i);
+-
+-		if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
+-			nBlocksPerState[bi->blockState]++;
+-		else
+-			nIllegalBlockStates++;
+-	}
++	int attempts = 0;
++	int writeOk = 0;
++	int chunk;
+ 
+-	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
+-	T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR)));
++	yaffs2_checkpt_invalidate(dev);
+ 
+-	T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates));
+-	if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
+-		T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR)));
++	do {
++		yaffs_block_info_t *bi = 0;
++		int erasedOk = 0;
+ 
+-	for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
+-		T(YAFFS_TRACE_VERIFY,
+-		  (TSTR("%s %d blocks"TENDSTR),
+-		  blockStateName[i], nBlocksPerState[i]));
++		chunk = yaffs_alloc_chunk(dev, useReserve, &bi);
++		if (chunk < 0) {
++			/* no space */
++			break;
++		}
+ 
+-	if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
+-		T(YAFFS_TRACE_VERIFY,
+-		 (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR),
+-		 dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]));
++		/* First check this chunk is erased, if it needs
++		 * checking.  The checking policy (unless forced
++		 * always on) is as follows:
++		 *
++		 * Check the first page we try to write in a block.
++		 * If the check passes then we don't need to check any
++		 * more.	If the check fails, we check again...
++		 * If the block has been erased, we don't need to check.
++		 *
++		 * However, if the block has been prioritised for gc,
++		 * then we think there might be something odd about
++		 * this block and stop using it.
++		 *
++		 * Rationale: We should only ever see chunks that have
++		 * not been erased if there was a partially written
++		 * chunk due to power loss.  This checking policy should
++		 * catch that case with very few checks and thus save a
++		 * lot of checks that are most likely not needed.
++		 *
++		 * Mods to the above
++		 * If an erase check fails or the write fails we skip the 
++		 * rest of the block.
++		 */
+ 
+-	if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
+-		T(YAFFS_TRACE_VERIFY,
+-		 (TSTR("Erased block count wrong dev %d count %d"TENDSTR),
+-		 dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]));
++		/* let's give it a try */
++		attempts++;
+ 
+-	if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
+-		T(YAFFS_TRACE_VERIFY,
+-		 (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR),
+-		 nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING]));
++		if(dev->param.always_check_erased)
++			bi->skip_erased_check = 0;
+ 
+-	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
++		if (!bi->skip_erased_check) {
++			erasedOk = yaffs_check_chunk_erased(dev, chunk);
++			if (erasedOk != YAFFS_OK) {
++				T(YAFFS_TRACE_ERROR,
++				(TSTR("**>> yaffs chunk %d was not erased"
++				TENDSTR), chunk));
+ 
+-}
++				/* If not erased, delete this one,
++				 * skip rest of block and
++				 * try another chunk */
++				 yaffs_chunk_del(dev,chunk,1,__LINE__);
++				 yaffs_skip_rest_of_block(dev);
++				continue;
++			}
++		}
+ 
+-/*
+- * Verify the object header. oh must be valid, but obj and tags may be NULL in which
+- * case those tests will not be performed.
+- */
+-static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck)
+-{
+-	if (obj && yaffs_SkipVerification(obj->myDev))
+-		return;
++		writeOk = yaffs_wr_chunk_tags_nand(dev, chunk,
++				data, tags);
+ 
+-	if (!(tags && obj && oh)) {
+-		T(YAFFS_TRACE_VERIFY,
+-				(TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR),
+-				(__u32)tags, (__u32)obj, (__u32)oh));
+-		return;
+-	}
++		if(!bi->skip_erased_check)
++			writeOk = yaffs_verify_chunk_written(dev, chunk, data, tags);
+ 
+-	if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
+-			oh->type > YAFFS_OBJECT_TYPE_MAX)
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
+-			tags->objectId, oh->type));
++		if (writeOk != YAFFS_OK) {
++			/* Clean up aborted write, skip to next block and
++			 * try another chunk */
++			yaffs_handle_chunk_wr_error(dev, chunk, erasedOk);
++			continue;
++		}
+ 
+-	if (tags->objectId != obj->objectId)
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d header mismatch objectId %d"TENDSTR),
+-			tags->objectId, obj->objectId));
++		bi->skip_erased_check = 1;
+ 
++		/* Copy the data into the robustification buffer */
++		yaffs_handle_chunk_wr_ok(dev, chunk, data, tags);
+ 
+-	/*
+-	 * Check that the object's parent ids match if parentCheck requested.
+-	 *
+-	 * Tests do not apply to the root object.
+-	 */
++	} while (writeOk != YAFFS_OK &&
++		(yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts));
+ 
+-	if (parentCheck && tags->objectId > 1 && !obj->parent)
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
+-			tags->objectId, oh->parentObjectId));
++	if (!writeOk)
++		chunk = -1;
+ 
+-	if (parentCheck && obj->parent &&
+-			oh->parentObjectId != obj->parent->objectId &&
+-			(oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
+-			obj->parent->objectId != YAFFS_OBJECTID_DELETED))
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
+-			tags->objectId, oh->parentObjectId, obj->parent->objectId));
++	if (attempts > 1) {
++		T(YAFFS_TRACE_ERROR,
++			(TSTR("**>> yaffs write required %d attempts" TENDSTR),
++			attempts));
+ 
+-	if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d header name is NULL"TENDSTR),
+-			obj->objectId));
++		dev->n_retired_writes += (attempts - 1);
++	}
+ 
+-	if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d header name is 0xFF"TENDSTR),
+-			obj->objectId));
++	return chunk;
+ }
+ 
+ 
++ 
++/*
++ * Block retiring for handling a broken block.
++ */
+ 
+-static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn,
+-					__u32 level, int chunkOffset)
++static void yaffs_retire_block(yaffs_dev_t *dev, int flash_block)
+ {
+-	int i;
+-	yaffs_Device *dev = obj->myDev;
+-	int ok = 1;
++	yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block);
+ 
+-	if (tn) {
+-		if (level > 0) {
++	yaffs2_checkpt_invalidate(dev);
++	
++	yaffs2_clear_oldest_dirty_seq(dev,bi);
+ 
+-			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
+-				if (tn->internal[i]) {
+-					ok = yaffs_VerifyTnodeWorker(obj,
+-							tn->internal[i],
+-							level - 1,
+-							(chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i);
+-				}
+-			}
+-		} else if (level == 0) {
+-			yaffs_ExtendedTags tags;
+-			__u32 objectId = obj->objectId;
++	if (yaffs_mark_bad(dev, flash_block) != YAFFS_OK) {
++		if (yaffs_erase_block(dev, flash_block) != YAFFS_OK) {
++			T(YAFFS_TRACE_ALWAYS, (TSTR(
++				"yaffs: Failed to mark bad and erase block %d"
++				TENDSTR), flash_block));
++		} else {
++			yaffs_ext_tags tags;
++			int chunk_id = flash_block * dev->param.chunks_per_block;
+ 
+-			chunkOffset <<=  YAFFS_TNODES_LEVEL0_BITS;
++			__u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__);
+ 
+-			for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) {
+-				__u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
++			memset(buffer, 0xff, dev->data_bytes_per_chunk);
++			yaffs_init_tags(&tags);
++			tags.seq_number = YAFFS_SEQUENCE_BAD_BLOCK;
++			if (dev->param.write_chunk_tags_fn(dev, chunk_id -
++				dev->chunk_offset, buffer, &tags) != YAFFS_OK)
++				T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to "
++					TCONT("write bad block marker to block %d")
++					TENDSTR), flash_block));
+ 
+-				if (theChunk > 0) {
+-					/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */
+-					yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
+-					if (tags.objectId != objectId || tags.chunkId != chunkOffset) {
+-						T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
+-							objectId, chunkOffset, theChunk,
+-							tags.objectId, tags.chunkId));
+-					}
+-				}
+-				chunkOffset++;
+-			}
++			yaffs_release_temp_buffer(dev, buffer, __LINE__);
+ 		}
+ 	}
+ 
+-	return ok;
++	bi->block_state = YAFFS_BLOCK_STATE_DEAD;
++	bi->gc_prioritise = 0;
++	bi->needs_retiring = 0;
+ 
++	dev->n_retired_blocks++;
+ }
+ 
++/*
++ * Functions for robustisizing TODO
++ *
++ */
+ 
+-static void yaffs_VerifyFile(yaffs_Object *obj)
++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk,
++				const __u8 *data,
++				const yaffs_ext_tags *tags)
+ {
+-	int requiredTallness;
+-	int actualTallness;
+-	__u32 lastChunk;
+-	__u32 x;
+-	__u32 i;
+-	yaffs_Device *dev;
+-	yaffs_ExtendedTags tags;
+-	yaffs_Tnode *tn;
+-	__u32 objectId;
++	dev=dev;
++	nand_chunk=nand_chunk;
++	data=data;
++	tags=tags;
++}
+ 
+-	if (!obj)
+-		return;
++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk,
++				const yaffs_ext_tags *tags)
++{
++	dev=dev;
++	nand_chunk=nand_chunk;
++	tags=tags;
++}
+ 
+-	if (yaffs_SkipVerification(obj->myDev))
+-		return;
++void yaffs_handle_chunk_error(yaffs_dev_t *dev, yaffs_block_info_t *bi)
++{
++	if (!bi->gc_prioritise) {
++		bi->gc_prioritise = 1;
++		dev->has_pending_prioritised_gc = 1;
++		bi->chunk_error_strikes++;
+ 
+-	dev = obj->myDev;
+-	objectId = obj->objectId;
++		if (bi->chunk_error_strikes > 3) {
++			bi->needs_retiring = 1; /* Too many stikes, so retire this */
++			T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR)));
+ 
+-	/* Check file size is consistent with tnode depth */
+-	lastChunk =  obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1;
+-	x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS;
+-	requiredTallness = 0;
+-	while (x > 0) {
+-		x >>= YAFFS_TNODES_INTERNAL_BITS;
+-		requiredTallness++;
++		}
+ 	}
++}
+ 
+-	actualTallness = obj->variant.fileVariant.topLevel;
++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk,
++		int erasedOk)
++{
++	int flash_block = nand_chunk / dev->param.chunks_per_block;
++	yaffs_block_info_t *bi = yaffs_get_block_info(dev, flash_block);
+ 
+-	if (requiredTallness > actualTallness)
+-		T(YAFFS_TRACE_VERIFY,
+-		(TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR),
+-		 obj->objectId, actualTallness, requiredTallness));
++	yaffs_handle_chunk_error(dev, bi);
+ 
++	if (erasedOk) {
++		/* Was an actual write failure, so mark the block for retirement  */
++		bi->needs_retiring = 1;
++		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
++		  (TSTR("**>> Block %d needs retiring" TENDSTR), flash_block));
++	}
+ 
+-	/* Check that the chunks in the tnode tree are all correct.
+-	 * We do this by scanning through the tnode tree and
+-	 * checking the tags for every chunk match.
+-	 */
++	/* Delete the chunk */
++	yaffs_chunk_del(dev, nand_chunk, 1, __LINE__);
++	yaffs_skip_rest_of_block(dev);
++}
+ 
+-	if (yaffs_SkipNANDVerification(dev))
+-		return;
+ 
+-	for (i = 1; i <= lastChunk; i++) {
+-		tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i);
++/*---------------- Name handling functions ------------*/
+ 
+-		if (tn) {
+-			__u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+-			if (theChunk > 0) {
+-				/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */
+-				yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags);
+-				if (tags.objectId != objectId || tags.chunkId != i) {
+-					T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
+-						objectId, i, theChunk,
+-						tags.objectId, tags.chunkId));
+-				}
+-			}
++static __u16 yaffs_calc_name_sum(const YCHAR *name)
++{
++	__u16 sum = 0;
++	__u16 i = 1;
++
++	const YUCHAR *bname = (const YUCHAR *) name;
++	if (bname) {
++		while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) {
++
++#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
++			sum += yaffs_toupper(*bname) * i;
++#else
++			sum += (*bname) * i;
++#endif
++			i++;
++			bname++;
+ 		}
+ 	}
++	return sum;
+ }
+ 
+-
+-static void yaffs_VerifyHardLink(yaffs_Object *obj)
++void yaffs_set_obj_name(yaffs_obj_t *obj, const YCHAR *name)
+ {
+-	if (obj && yaffs_SkipVerification(obj->myDev))
+-		return;
+-
+-	/* Verify sane equivalent object */
++#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
++	memset(obj->short_name, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1));
++	if (name && yaffs_strnlen(name,YAFFS_SHORT_NAME_LENGTH+1) <= YAFFS_SHORT_NAME_LENGTH)
++		yaffs_strcpy(obj->short_name, name);
++	else
++		obj->short_name[0] = _Y('\0');
++#endif
++	obj->sum = yaffs_calc_name_sum(name);
+ }
+ 
+-static void yaffs_VerifySymlink(yaffs_Object *obj)
++void yaffs_set_obj_name_from_oh(yaffs_obj_t *obj, const yaffs_obj_header *oh)
+ {
+-	if (obj && yaffs_SkipVerification(obj->myDev))
+-		return;
+-
+-	/* Verify symlink string */
++#ifdef CONFIG_YAFFS_AUTO_UNICODE
++	YCHAR tmpName[YAFFS_MAX_NAME_LENGTH+1];
++	memset(tmpName,0,sizeof(tmpName));
++	yaffs_load_name_from_oh(obj->my_dev,tmpName,oh->name,YAFFS_MAX_NAME_LENGTH+1);
++	yaffs_set_obj_name(obj,tmpName);
++#else
++	yaffs_set_obj_name(obj,oh->name);
++#endif
+ }
+ 
+-static void yaffs_VerifySpecial(yaffs_Object *obj)
+-{
+-	if (obj && yaffs_SkipVerification(obj->myDev))
+-		return;
+-}
+-
+-static void yaffs_VerifyObject(yaffs_Object *obj)
+-{
+-	yaffs_Device *dev;
+-
+-	__u32 chunkMin;
+-	__u32 chunkMax;
+-
+-	__u32 chunkIdOk;
+-	__u32 chunkInRange;
+-	__u32 chunkShouldNotBeDeleted;
+-	__u32 chunkValid;
+-
+-	if (!obj)
+-		return;
+-
+-	if (obj->beingCreated)
+-		return;
++/*-------------------- TNODES -------------------
+ 
+-	dev = obj->myDev;
++ * List of spare tnodes
++ * The list is hooked together using the first pointer
++ * in the tnode.
++ */
+ 
+-	if (yaffs_SkipVerification(dev))
+-		return;
+ 
+-	/* Check sane object header chunk */
++yaffs_tnode_t *yaffs_get_tnode(yaffs_dev_t *dev)
++{
++	yaffs_tnode_t *tn = yaffs_alloc_raw_tnode(dev);
++	if (tn){
++		memset(tn, 0, dev->tnode_size);
++		dev->n_tnodes++;
++	}
+ 
+-	chunkMin = dev->internalStartBlock * dev->nChunksPerBlock;
+-	chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1;
++	dev->checkpoint_blocks_required = 0; /* force recalculation*/
+ 
+-	chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax);
+-	chunkIdOk = chunkInRange || obj->hdrChunk == 0;
+-	chunkValid = chunkInRange &&
+-			yaffs_CheckChunkBit(dev,
+-					obj->hdrChunk / dev->nChunksPerBlock,
+-					obj->hdrChunk % dev->nChunksPerBlock);
+-	chunkShouldNotBeDeleted = chunkInRange && !chunkValid;
++	return tn;
++}
+ 
+-	if (!obj->fake &&
+-			(!chunkIdOk || chunkShouldNotBeDeleted)) {
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
+-			obj->objectId, obj->hdrChunk,
+-			chunkIdOk ? "" : ",out of range",
+-			chunkShouldNotBeDeleted ? ",marked as deleted" : ""));
+-	}
++/* FreeTnode frees up a tnode and puts it back on the free list */
++static void yaffs_free_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn)
++{
++	yaffs_free_raw_tnode(dev,tn);
++	dev->n_tnodes--;
++	dev->checkpoint_blocks_required = 0; /* force recalculation*/
++}
+ 
+-	if (chunkValid && !yaffs_SkipNANDVerification(dev)) {
+-		yaffs_ExtendedTags tags;
+-		yaffs_ObjectHeader *oh;
+-		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
++static void yaffs_deinit_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	yaffs_deinit_raw_tnodes_and_objs(dev);
++	dev->n_obj = 0;
++	dev->n_tnodes = 0;
++}
+ 
+-		oh = (yaffs_ObjectHeader *)buffer;
+ 
+-		yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer,
+-				&tags);
++void yaffs_load_tnode_0(yaffs_dev_t *dev, yaffs_tnode_t *tn, unsigned pos,
++		unsigned val)
++{
++	__u32 *map = (__u32 *)tn;
++	__u32 bitInMap;
++	__u32 bitInWord;
++	__u32 wordInMap;
++	__u32 mask;
+ 
+-		yaffs_VerifyObjectHeader(obj, oh, &tags, 1);
++	pos &= YAFFS_TNODES_LEVEL0_MASK;
++	val >>= dev->chunk_grp_bits;
+ 
+-		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
+-	}
++	bitInMap = pos * dev->tnode_width;
++	wordInMap = bitInMap / 32;
++	bitInWord = bitInMap & (32 - 1);
+ 
+-	/* Verify it has a parent */
+-	if (obj && !obj->fake &&
+-			(!obj->parent || obj->parent->myDev != dev)) {
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
+-			obj->objectId, obj->parent));
+-	}
++	mask = dev->tnode_mask << bitInWord;
+ 
+-	/* Verify parent is a directory */
+-	if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
+-			obj->objectId, obj->parent->variantType));
+-	}
++	map[wordInMap] &= ~mask;
++	map[wordInMap] |= (mask & (val << bitInWord));
+ 
+-	switch (obj->variantType) {
+-	case YAFFS_OBJECT_TYPE_FILE:
+-		yaffs_VerifyFile(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_SYMLINK:
+-		yaffs_VerifySymlink(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_DIRECTORY:
+-		yaffs_VerifyDirectory(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_HARDLINK:
+-		yaffs_VerifyHardLink(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_SPECIAL:
+-		yaffs_VerifySpecial(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_UNKNOWN:
+-	default:
+-		T(YAFFS_TRACE_VERIFY,
+-		(TSTR("Obj %d has illegaltype %d"TENDSTR),
+-		obj->objectId, obj->variantType));
+-		break;
++	if (dev->tnode_width > (32 - bitInWord)) {
++		bitInWord = (32 - bitInWord);
++		wordInMap++;;
++		mask = dev->tnode_mask >> (/*dev->tnode_width -*/ bitInWord);
++		map[wordInMap] &= ~mask;
++		map[wordInMap] |= (mask & (val >> bitInWord));
+ 	}
+ }
+ 
+-static void yaffs_VerifyObjects(yaffs_Device *dev)
++__u32 yaffs_get_group_base(yaffs_dev_t *dev, yaffs_tnode_t *tn,
++		unsigned pos)
+ {
+-	yaffs_Object *obj;
+-	int i;
+-	struct ylist_head *lh;
++	__u32 *map = (__u32 *)tn;
++	__u32 bitInMap;
++	__u32 bitInWord;
++	__u32 wordInMap;
++	__u32 val;
+ 
+-	if (yaffs_SkipVerification(dev))
+-		return;
++	pos &= YAFFS_TNODES_LEVEL0_MASK;
+ 
+-	/* Iterate through the objects in each hash entry */
++	bitInMap = pos * dev->tnode_width;
++	wordInMap = bitInMap / 32;
++	bitInWord = bitInMap & (32 - 1);
+ 
+-	for (i = 0; i <  YAFFS_NOBJECT_BUCKETS; i++) {
+-		ylist_for_each(lh, &dev->objectBucket[i].list) {
+-			if (lh) {
+-				obj = ylist_entry(lh, yaffs_Object, hashLink);
+-				yaffs_VerifyObject(obj);
+-			}
+-		}
+-	}
+-}
++	val = map[wordInMap] >> bitInWord;
+ 
++	if	(dev->tnode_width > (32 - bitInWord)) {
++		bitInWord = (32 - bitInWord);
++		wordInMap++;;
++		val |= (map[wordInMap] << bitInWord);
++	}
+ 
+-/*
+- *  Simple hash function. Needs to have a reasonable spread
+- */
++	val &= dev->tnode_mask;
++	val <<= dev->chunk_grp_bits;
+ 
+-static Y_INLINE int yaffs_HashFunction(int n)
+-{
+-	n = abs(n);
+-	return n % YAFFS_NOBJECT_BUCKETS;
++	return val;
+ }
+ 
+-/*
+- * Access functions to useful fake objects.
+- * Note that root might have a presence in NAND if permissions are set.
++/* ------------------- End of individual tnode manipulation -----------------*/
++
++/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------
++ * The look up tree is represented by the top tnode and the number of top_level
++ * in the tree. 0 means only the level 0 tnode is in the tree.
+  */
+ 
+-yaffs_Object *yaffs_Root(yaffs_Device *dev)
++/* FindLevel0Tnode finds the level 0 tnode, if one exists. */
++yaffs_tnode_t *yaffs_find_tnode_0(yaffs_dev_t *dev,
++					yaffs_file_s *file_struct,
++					__u32 chunk_id)
+ {
+-	return dev->rootDir;
+-}
++	yaffs_tnode_t *tn = file_struct->top;
++	__u32 i;
++	int requiredTallness;
++	int level = file_struct->top_level;
+ 
+-yaffs_Object *yaffs_LostNFound(yaffs_Device *dev)
+-{
+-	return dev->lostNFoundDir;
+-}
++	dev=dev;
+ 
++	/* Check sane level and chunk Id */
++	if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL)
++		return NULL;
+ 
+-/*
+- *  Erased NAND checking functions
+- */
++	if (chunk_id > YAFFS_MAX_CHUNK_ID)
++		return NULL;
+ 
+-int yaffs_CheckFF(__u8 *buffer, int nBytes)
+-{
+-	/* Horrible, slow implementation */
+-	while (nBytes--) {
+-		if (*buffer != 0xFF)
+-			return 0;
+-		buffer++;
++	/* First check we're tall enough (ie enough top_level) */
++
++	i = chunk_id >> YAFFS_TNODES_LEVEL0_BITS;
++	requiredTallness = 0;
++	while (i) {
++		i >>= YAFFS_TNODES_INTERNAL_BITS;
++		requiredTallness++;
+ 	}
+-	return 1;
+-}
+ 
+-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
+-				int chunkInNAND)
+-{
+-	int retval = YAFFS_OK;
+-	__u8 *data = yaffs_GetTempBuffer(dev, __LINE__);
+-	yaffs_ExtendedTags tags;
+-	int result;
++	if (requiredTallness > file_struct->top_level)
++		return NULL; /* Not tall enough, so we can't find it */
++
++	/* Traverse down to level 0 */
++	while (level > 0 && tn) {
++		tn = tn->internal[(chunk_id >>
++			(YAFFS_TNODES_LEVEL0_BITS +
++				(level - 1) *
++				YAFFS_TNODES_INTERNAL_BITS)) &
++			YAFFS_TNODES_INTERNAL_MASK];
++		level--;
++	}
+ 
+-	result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags);
++	return tn;
++}
+ 
+-	if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR)
+-		retval = YAFFS_FAIL;
++/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree.
++ * This happens in two steps:
++ *  1. If the tree isn't tall enough, then make it taller.
++ *  2. Scan down the tree towards the level 0 tnode adding tnodes if required.
++ *
++ * Used when modifying the tree.
++ *
++ *  If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will
++ *  be plugged into the ttree.
++ */
+ 
+-	if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) {
+-		T(YAFFS_TRACE_NANDACCESS,
+-		  (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND));
+-		retval = YAFFS_FAIL;
+-	}
++yaffs_tnode_t *yaffs_add_find_tnode_0(yaffs_dev_t *dev,
++					yaffs_file_s *file_struct,
++					__u32 chunk_id,
++					yaffs_tnode_t *passed_tn)
++{
++	int requiredTallness;
++	int i;
++	int l;
++	yaffs_tnode_t *tn;
+ 
+-	yaffs_ReleaseTempBuffer(dev, data, __LINE__);
++	__u32 x;
+ 
+-	return retval;
+ 
+-}
++	/* Check sane level and page Id */
++	if (file_struct->top_level < 0 || file_struct->top_level > YAFFS_TNODES_MAX_LEVEL)
++		return NULL;
+ 
+-static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
+-					const __u8 *data,
+-					yaffs_ExtendedTags *tags,
+-					int useReserve)
+-{
+-	int attempts = 0;
+-	int writeOk = 0;
+-	int chunk;
++	if (chunk_id > YAFFS_MAX_CHUNK_ID)
++		return NULL;
+ 
+-	yaffs_InvalidateCheckpoint(dev);
++	/* First check we're tall enough (ie enough top_level) */
+ 
+-	do {
+-		yaffs_BlockInfo *bi = 0;
+-		int erasedOk = 0;
++	x = chunk_id >> YAFFS_TNODES_LEVEL0_BITS;
++	requiredTallness = 0;
++	while (x) {
++		x >>= YAFFS_TNODES_INTERNAL_BITS;
++		requiredTallness++;
++	}
+ 
+-		chunk = yaffs_AllocateChunk(dev, useReserve, &bi);
+-		if (chunk < 0) {
+-			/* no space */
+-			break;
+-		}
+ 
+-		/* First check this chunk is erased, if it needs
+-		 * checking.  The checking policy (unless forced
+-		 * always on) is as follows:
+-		 *
+-		 * Check the first page we try to write in a block.
+-		 * If the check passes then we don't need to check any
+-		 * more.	If the check fails, we check again...
+-		 * If the block has been erased, we don't need to check.
+-		 *
+-		 * However, if the block has been prioritised for gc,
+-		 * then we think there might be something odd about
+-		 * this block and stop using it.
+-		 *
+-		 * Rationale: We should only ever see chunks that have
+-		 * not been erased if there was a partially written
+-		 * chunk due to power loss.  This checking policy should
+-		 * catch that case with very few checks and thus save a
+-		 * lot of checks that are most likely not needed.
+-		 */
+-		if (bi->gcPrioritise) {
+-			yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
+-			/* try another chunk */
+-			continue;
+-		}
++	if (requiredTallness > file_struct->top_level) {
++		/* Not tall enough, gotta make the tree taller */
++		for (i = file_struct->top_level; i < requiredTallness; i++) {
+ 
+-		/* let's give it a try */
+-		attempts++;
++			tn = yaffs_get_tnode(dev);
+ 
+-#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED
+-		bi->skipErasedCheck = 0;
+-#endif
+-		if (!bi->skipErasedCheck) {
+-			erasedOk = yaffs_CheckChunkErased(dev, chunk);
+-			if (erasedOk != YAFFS_OK) {
++			if (tn) {
++				tn->internal[0] = file_struct->top;
++				file_struct->top = tn;
++				file_struct->top_level++;
++			} else {
+ 				T(YAFFS_TRACE_ERROR,
+-				(TSTR("**>> yaffs chunk %d was not erased"
+-				TENDSTR), chunk));
+-
+-				/* try another chunk */
+-				continue;
++					(TSTR("yaffs: no more tnodes" TENDSTR)));
++				return NULL;
+ 			}
+-			bi->skipErasedCheck = 1;
+ 		}
++	}
+ 
+-		writeOk = yaffs_WriteChunkWithTagsToNAND(dev, chunk,
+-				data, tags);
+-		if (writeOk != YAFFS_OK) {
+-			yaffs_HandleWriteChunkError(dev, chunk, erasedOk);
+-			/* try another chunk */
+-			continue;
+-		}
++	/* Traverse down to level 0, adding anything we need */
+ 
+-		/* Copy the data into the robustification buffer */
+-		yaffs_HandleWriteChunkOk(dev, chunk, data, tags);
++	l = file_struct->top_level;
++	tn = file_struct->top;
+ 
+-	} while (writeOk != YAFFS_OK &&
+-		(yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts));
++	if (l > 0) {
++		while (l > 0 && tn) {
++			x = (chunk_id >>
++			     (YAFFS_TNODES_LEVEL0_BITS +
++			      (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) &
++			    YAFFS_TNODES_INTERNAL_MASK;
+ 
+-	if (!writeOk)
+-		chunk = -1;
+ 
+-	if (attempts > 1) {
+-		T(YAFFS_TRACE_ERROR,
+-			(TSTR("**>> yaffs write required %d attempts" TENDSTR),
+-			attempts));
++			if ((l > 1) && !tn->internal[x]) {
++				/* Add missing non-level-zero tnode */
++				tn->internal[x] = yaffs_get_tnode(dev);
++				if(!tn->internal[x])
++					return NULL;
++			} else if (l == 1) {
++				/* Looking from level 1 at level 0 */
++				if (passed_tn) {
++					/* If we already have one, then release it.*/
++					if (tn->internal[x])
++						yaffs_free_tnode(dev, tn->internal[x]);
++					tn->internal[x] = passed_tn;
++
++				} else if (!tn->internal[x]) {
++					/* Don't have one, none passed in */
++					tn->internal[x] = yaffs_get_tnode(dev);
++					if(!tn->internal[x])
++						return NULL;
++				}
++			}
+ 
+-		dev->nRetriedWrites += (attempts - 1);
++			tn = tn->internal[x];
++			l--;
++		}
++	} else {
++		/* top is level 0 */
++		if (passed_tn) {
++			memcpy(tn, passed_tn, (dev->tnode_width * YAFFS_NTNODES_LEVEL0)/8);
++			yaffs_free_tnode(dev, passed_tn);
++		}
+ 	}
+ 
+-	return chunk;
++	return tn;
+ }
+ 
+-/*
+- * Block retiring for handling a broken block.
+- */
+-
+-static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND)
++static int yaffs_find_chunk_in_group(yaffs_dev_t *dev, int theChunk,
++				yaffs_ext_tags *tags, int obj_id,
++				int inode_chunk)
+ {
+-	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
++	int j;
+ 
+-	yaffs_InvalidateCheckpoint(dev);
++	for (j = 0; theChunk && j < dev->chunk_grp_size; j++) {
++		if (yaffs_check_chunk_bit(dev, theChunk / dev->param.chunks_per_block,
++				theChunk % dev->param.chunks_per_block)) {
++			
++			if(dev->chunk_grp_size == 1)
++				return theChunk;
++			else {
++				yaffs_rd_chunk_tags_nand(dev, theChunk, NULL,
++								tags);
++				if (yaffs_tags_match(tags, obj_id, inode_chunk)) {
++					/* found it; */
++					return theChunk;
++				}
++			}
++		}
++		theChunk++;
++	}
++	return -1;
++}
+ 
+-	if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) {
+-		if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) {
+-			T(YAFFS_TRACE_ALWAYS, (TSTR(
+-				"yaffs: Failed to mark bad and erase block %d"
+-				TENDSTR), blockInNAND));
+-		} else {
+-			yaffs_ExtendedTags tags;
+-			int chunkId = blockInNAND * dev->nChunksPerBlock;
++#if 0
++/* Experimental code not being used yet. Might speed up file deletion */
++/* DeleteWorker scans backwards through the tnode tree and deletes all the
++ * chunks and tnodes in the file.
++ * Returns 1 if the tree was deleted.
++ * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete.
++ */
+ 
+-			__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
++static int yaffs_del_worker(yaffs_obj_t *in, yaffs_tnode_t *tn, __u32 level,
++			      int chunk_offset, int *limit)
++{
++	int i;
++	int inode_chunk;
++	int theChunk;
++	yaffs_ext_tags tags;
++	int foundChunk;
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-			memset(buffer, 0xff, dev->nDataBytesPerChunk);
+-			yaffs_InitialiseTags(&tags);
+-			tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK;
+-			if (dev->writeChunkWithTagsToNAND(dev, chunkId -
+-				dev->chunkOffset, buffer, &tags) != YAFFS_OK)
+-				T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to "
+-					TCONT("write bad block marker to block %d")
+-					TENDSTR), blockInNAND));
++	int allDone = 1;
+ 
+-			yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
+-		}
+-	}
++	if (tn) {
++		if (level > 0) {
++			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
++			     i--) {
++				if (tn->internal[i]) {
++					if (limit && (*limit) < 0) {
++						allDone = 0;
++					} else {
++						allDone =
++							yaffs_del_worker(in,
++								tn->
++								internal
++								[i],
++								level -
++								1,
++								(chunk_offset
++									<<
++									YAFFS_TNODES_INTERNAL_BITS)
++								+ i,
++								limit);
++					}
++					if (allDone) {
++						yaffs_free_tnode(dev,
++								tn->
++								internal[i]);
++						tn->internal[i] = NULL;
++					}
++				}
++			}
++			return (allDone) ? 1 : 0;
++		} else if (level == 0) {
++			int hitLimit = 0;
+ 
+-	bi->blockState = YAFFS_BLOCK_STATE_DEAD;
+-	bi->gcPrioritise = 0;
+-	bi->needsRetiring = 0;
++			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit;
++					i--) {
++				theChunk = yaffs_get_group_base(dev, tn, i);
++				if (theChunk) {
+ 
+-	dev->nRetiredBlocks++;
+-}
++					inode_chunk = (chunk_offset <<
++						YAFFS_TNODES_LEVEL0_BITS) + i;
+ 
+-/*
+- * Functions for robustisizing TODO
+- *
+- */
++					foundChunk =
++						yaffs_find_chunk_in_group(dev,
++								theChunk,
++								&tags,
++								in->obj_id,
++								inode_chunk);
+ 
+-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
+-				const __u8 *data,
+-				const yaffs_ExtendedTags *tags)
+-{
+-}
++					if (foundChunk > 0) {
++						yaffs_chunk_del(dev,
++								  foundChunk, 1,
++								  __LINE__);
++						in->n_data_chunks--;
++						if (limit) {
++							*limit = *limit - 1;
++							if (*limit <= 0)
++								hitLimit = 1;
++						}
+ 
+-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+-				const yaffs_ExtendedTags *tags)
+-{
+-}
++					}
+ 
+-void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi)
+-{
+-	if (!bi->gcPrioritise) {
+-		bi->gcPrioritise = 1;
+-		dev->hasPendingPrioritisedGCs = 1;
+-		bi->chunkErrorStrikes++;
++					yaffs_load_tnode_0(dev, tn, i, 0);
++				}
+ 
+-		if (bi->chunkErrorStrikes > 3) {
+-			bi->needsRetiring = 1; /* Too many stikes, so retire this */
+-			T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR)));
++			}
++			return (i < 0) ? 1 : 0;
+ 
+ 		}
++
+ 	}
++
++	return 1;
++
+ }
+ 
+-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND,
+-		int erasedOk)
++#endif
++
++static void yaffs_soft_del_chunk(yaffs_dev_t *dev, int chunk)
+ {
+-	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
+-	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
++	yaffs_block_info_t *theBlock;
++	unsigned block_no;
+ 
+-	yaffs_HandleChunkError(dev, bi);
++	T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk));
+ 
+-	if (erasedOk) {
+-		/* Was an actual write failure, so mark the block for retirement  */
+-		bi->needsRetiring = 1;
+-		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
+-		  (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND));
++	block_no =  chunk / dev->param.chunks_per_block;
++	theBlock = yaffs_get_block_info(dev, block_no);
++	if (theBlock) {
++		theBlock->soft_del_pages++;
++		dev->n_free_chunks++;
++		yaffs2_update_oldest_dirty_seq(dev, block_no, theBlock);
+ 	}
+-
+-	/* Delete the chunk */
+-	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
+ }
+ 
++/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file.
++ * All soft deleting does is increment the block's softdelete count and pulls the chunk out
++ * of the tnode.
++ * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted.
++ */
+ 
+-/*---------------- Name handling functions ------------*/
+-
+-static __u16 yaffs_CalcNameSum(const YCHAR *name)
++static int yaffs_soft_del_worker(yaffs_obj_t *in, yaffs_tnode_t *tn,
++				  __u32 level, int chunk_offset)
+ {
+-	__u16 sum = 0;
+-	__u16 i = 1;
++	int i;
++	int theChunk;
++	int allDone = 1;
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-	const YUCHAR *bname = (const YUCHAR *) name;
+-	if (bname) {
+-		while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) {
++	if (tn) {
++		if (level > 0) {
++
++			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
++			     i--) {
++				if (tn->internal[i]) {
++					allDone =
++					    yaffs_soft_del_worker(in,
++								   tn->
++								   internal[i],
++								   level - 1,
++								   (chunk_offset
++								    <<
++								    YAFFS_TNODES_INTERNAL_BITS)
++								   + i);
++					if (allDone) {
++						yaffs_free_tnode(dev,
++								tn->
++								internal[i]);
++						tn->internal[i] = NULL;
++					} else {
++						/* Hoosterman... how could this happen? */
++					}
++				}
++			}
++			return (allDone) ? 1 : 0;
++		} else if (level == 0) {
++
++			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) {
++				theChunk = yaffs_get_group_base(dev, tn, i);
++				if (theChunk) {
++					/* Note this does not find the real chunk, only the chunk group.
++					 * We make an assumption that a chunk group is not larger than
++					 * a block.
++					 */
++					yaffs_soft_del_chunk(dev, theChunk);
++					yaffs_load_tnode_0(dev, tn, i, 0);
++				}
++
++			}
++			return 1;
+ 
+-#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
+-			sum += yaffs_toupper(*bname) * i;
+-#else
+-			sum += (*bname) * i;
+-#endif
+-			i++;
+-			bname++;
+ 		}
++
+ 	}
+-	return sum;
++
++	return 1;
++
+ }
+ 
+-static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name)
++static void yaffs_soft_del_file(yaffs_obj_t *obj)
+ {
+-#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+-	memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1));
+-	if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH)
+-		yaffs_strcpy(obj->shortName, name);
+-	else
+-		obj->shortName[0] = _Y('\0');
+-#endif
+-	obj->sum = yaffs_CalcNameSum(name);
++	if (obj->deleted &&
++	    obj->variant_type == YAFFS_OBJECT_TYPE_FILE && !obj->soft_del) {
++		if (obj->n_data_chunks <= 0) {
++			/* Empty file with no duplicate object headers, just delete it immediately */
++			yaffs_free_tnode(obj->my_dev,
++					obj->variant.file_variant.top);
++			obj->variant.file_variant.top = NULL;
++			T(YAFFS_TRACE_TRACING,
++			  (TSTR("yaffs: Deleting empty file %d" TENDSTR),
++			   obj->obj_id));
++			yaffs_generic_obj_del(obj);
++		} else {
++			yaffs_soft_del_worker(obj,
++					       obj->variant.file_variant.top,
++					       obj->variant.file_variant.
++					       top_level, 0);
++			obj->soft_del = 1;
++		}
++	}
+ }
+ 
+-/*-------------------- TNODES -------------------
+-
+- * List of spare tnodes
+- * The list is hooked together using the first pointer
+- * in the tnode.
+- */
+-
+-/* yaffs_CreateTnodes creates a bunch more tnodes and
+- * adds them to the tnode free list.
+- * Don't use this function directly
++/* Pruning removes any part of the file structure tree that is beyond the
++ * bounds of the file (ie that does not point to chunks).
++ *
++ * A file should only get pruned when its size is reduced.
++ *
++ * Before pruning, the chunks must be pulled from the tree and the
++ * level 0 tnode entries must be zeroed out.
++ * Could also use this for file deletion, but that's probably better handled
++ * by a special case.
++ *
++ * This function is recursive. For levels > 0 the function is called again on
++ * any sub-tree. For level == 0 we just check if the sub-tree has data.
++ * If there is no data in a subtree then it is pruned.
+  */
+ 
+-static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes)
++static yaffs_tnode_t *yaffs_prune_worker(yaffs_dev_t *dev, yaffs_tnode_t *tn,
++				__u32 level, int del0)
+ {
+ 	int i;
+-	int tnodeSize;
+-	yaffs_Tnode *newTnodes;
+-	__u8 *mem;
+-	yaffs_Tnode *curr;
+-	yaffs_Tnode *next;
+-	yaffs_TnodeList *tnl;
++	int hasData;
+ 
+-	if (nTnodes < 1)
+-		return YAFFS_OK;
++	if (tn) {
++		hasData = 0;
+ 
+-	/* Calculate the tnode size in bytes for variable width tnode support.
+-	 * Must be a multiple of 32-bits  */
+-	tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
++		if(level > 0){
++			for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) {
++				if (tn->internal[i]) {
++					tn->internal[i] =
++						yaffs_prune_worker(dev, tn->internal[i],
++							level - 1,
++							(i == 0) ? del0 : 1);
++				}
+ 
+-	if (tnodeSize < sizeof(yaffs_Tnode))
+-		tnodeSize = sizeof(yaffs_Tnode);
++				if (tn->internal[i])
++					hasData++;
++			}
++		} else {
++			int tnode_size_u32 = dev->tnode_size/sizeof(__u32);
++			__u32 *map = (__u32 *)tn;
+ 
+-	/* make these things */
++                        for(i = 0; !hasData && i < tnode_size_u32; i++){
++                                if(map[i])
++                                        hasData++;
++                        }
++                }
+ 
+-	newTnodes = YMALLOC(nTnodes * tnodeSize);
+-	mem = (__u8 *)newTnodes;
++		if (hasData == 0 && del0) {
++			/* Free and return NULL */
+ 
+-	if (!newTnodes) {
+-		T(YAFFS_TRACE_ERROR,
+-			(TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
+-		return YAFFS_FAIL;
+-	}
++			yaffs_free_tnode(dev, tn);
++			tn = NULL;
++		}
+ 
+-	/* Hook them into the free list */
+-#if 0
+-	for (i = 0; i < nTnodes - 1; i++) {
+-		newTnodes[i].internal[0] = &newTnodes[i + 1];
+-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
+-		newTnodes[i].internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
+-#endif
+ 	}
+ 
+-	newTnodes[nTnodes - 1].internal[0] = dev->freeTnodes;
+-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
+-	newTnodes[nTnodes - 1].internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
+-#endif
+-	dev->freeTnodes = newTnodes;
+-#else
+-	/* New hookup for wide tnodes */
+-	for (i = 0; i < nTnodes - 1; i++) {
+-		curr = (yaffs_Tnode *) &mem[i * tnodeSize];
+-		next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize];
+-		curr->internal[0] = next;
+-	}
++	return tn;
+ 
+-	curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize];
+-	curr->internal[0] = dev->freeTnodes;
+-	dev->freeTnodes = (yaffs_Tnode *)mem;
++}
+ 
+-#endif
++static int yaffs_prune_tree(yaffs_dev_t *dev,
++				yaffs_file_s *file_struct)
++{
++	int i;
++	int hasData;
++	int done = 0;
++	yaffs_tnode_t *tn;
+ 
++	if (file_struct->top_level > 0) {
++		file_struct->top =
++		    yaffs_prune_worker(dev, file_struct->top, file_struct->top_level, 0);
++
++		/* Now we have a tree with all the non-zero branches NULL but the height
++		 * is the same as it was.
++		 * Let's see if we can trim internal tnodes to shorten the tree.
++		 * We can do this if only the 0th element in the tnode is in use
++		 * (ie all the non-zero are NULL)
++		 */
+ 
+-	dev->nFreeTnodes += nTnodes;
+-	dev->nTnodesCreated += nTnodes;
++		while (file_struct->top_level && !done) {
++			tn = file_struct->top;
+ 
+-	/* Now add this bunch of tnodes to a list for freeing up.
+-	 * NB If we can't add this to the management list it isn't fatal
+-	 * but it just means we can't free this bunch of tnodes later.
+-	 */
++			hasData = 0;
++			for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) {
++				if (tn->internal[i])
++					hasData++;
++			}
+ 
+-	tnl = YMALLOC(sizeof(yaffs_TnodeList));
+-	if (!tnl) {
+-		T(YAFFS_TRACE_ERROR,
+-		  (TSTR
+-		   ("yaffs: Could not add tnodes to management list" TENDSTR)));
+-		   return YAFFS_FAIL;
+-	} else {
+-		tnl->tnodes = newTnodes;
+-		tnl->next = dev->allocatedTnodeList;
+-		dev->allocatedTnodeList = tnl;
++			if (!hasData) {
++				file_struct->top = tn->internal[0];
++				file_struct->top_level--;
++				yaffs_free_tnode(dev, tn);
++			} else {
++				done = 1;
++			}
++		}
+ 	}
+ 
+-	T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR)));
+-
+ 	return YAFFS_OK;
+ }
+ 
+-/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */
++/*-------------------- End of File Structure functions.-------------------*/
++
+ 
+-static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev)
++/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */
++static yaffs_obj_t *yaffs_alloc_empty_obj(yaffs_dev_t *dev)
+ {
+-	yaffs_Tnode *tn = NULL;
++	yaffs_obj_t *obj = yaffs_alloc_raw_obj(dev);
+ 
+-	/* If there are none left make more */
+-	if (!dev->freeTnodes)
+-		yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES);
+-
+-	if (dev->freeTnodes) {
+-		tn = dev->freeTnodes;
+-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
+-		if (tn->internal[YAFFS_NTNODES_INTERNAL] != (void *)1) {
+-			/* Hoosterman, this thing looks like it isn't in the list */
+-			T(YAFFS_TRACE_ALWAYS,
+-			  (TSTR("yaffs: Tnode list bug 1" TENDSTR)));
+-		}
+-#endif
+-		dev->freeTnodes = dev->freeTnodes->internal[0];
+-		dev->nFreeTnodes--;
+-	}
++	if (obj) {
++		dev->n_obj++;
+ 
+-	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
++		/* Now sweeten it up... */
+ 
+-	return tn;
+-}
++		memset(obj, 0, sizeof(yaffs_obj_t));
++		obj->being_created = 1;
+ 
+-static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev)
+-{
+-	yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev);
+-	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
++		obj->my_dev = dev;
++		obj->hdr_chunk = 0;
++		obj->variant_type = YAFFS_OBJECT_TYPE_UNKNOWN;
++		YINIT_LIST_HEAD(&(obj->hard_links));
++		YINIT_LIST_HEAD(&(obj->hash_link));
++		YINIT_LIST_HEAD(&obj->siblings);
+ 
+-	if (tnodeSize < sizeof(yaffs_Tnode))
+-		tnodeSize = sizeof(yaffs_Tnode);
+ 
+-	if (tn)
+-		memset(tn, 0, tnodeSize);
++		/* Now make the directory sane */
++		if (dev->root_dir) {
++			obj->parent = dev->root_dir;
++			ylist_add(&(obj->siblings), &dev->root_dir->variant.dir_variant.children);
++		}
+ 
+-	return tn;
++		/* Add it to the lost and found directory.
++		 * NB Can't put root or lostNFound in lostNFound so
++		 * check if lostNFound exists first
++		 */
++		if (dev->lost_n_found)
++			yaffs_add_obj_to_dir(dev->lost_n_found, obj);
++
++		obj->being_created = 0;
++	}
++
++	dev->checkpoint_blocks_required = 0; /* force recalculation*/
++
++	return obj;
+ }
+ 
+-/* FreeTnode frees up a tnode and puts it back on the free list */
+-static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn)
++static yaffs_obj_t *yaffs_create_fake_dir(yaffs_dev_t *dev, int number,
++					       __u32 mode)
+ {
+-	if (tn) {
+-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
+-		if (tn->internal[YAFFS_NTNODES_INTERNAL] != 0) {
+-			/* Hoosterman, this thing looks like it is already in the list */
+-			T(YAFFS_TRACE_ALWAYS,
+-			  (TSTR("yaffs: Tnode list bug 2" TENDSTR)));
+-		}
+-		tn->internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
+-#endif
+-		tn->internal[0] = dev->freeTnodes;
+-		dev->freeTnodes = tn;
+-		dev->nFreeTnodes++;
++
++	yaffs_obj_t *obj =
++	    yaffs_new_obj(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY);
++	if (obj) {
++		obj->fake = 1;		/* it is fake so it might have no NAND presence... */
++		obj->rename_allowed = 0;	/* ... and we're not allowed to rename it... */
++		obj->unlink_allowed = 0;	/* ... or unlink it */
++		obj->deleted = 0;
++		obj->unlinked = 0;
++		obj->yst_mode = mode;
++		obj->my_dev = dev;
++		obj->hdr_chunk = 0;	/* Not a valid chunk. */
++	}
++
++	return obj;
++
++}
++
++static void yaffs_unhash_obj(yaffs_obj_t *obj)
++{
++	int bucket;
++	yaffs_dev_t *dev = obj->my_dev;
++
++	/* If it is still linked into the bucket list, free from the list */
++	if (!ylist_empty(&obj->hash_link)) {
++		ylist_del_init(&obj->hash_link);
++		bucket = yaffs_hash_fn(obj->obj_id);
++		dev->obj_bucket[bucket].count--;
+ 	}
+-	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
+ }
+ 
+-static void yaffs_DeinitialiseTnodes(yaffs_Device *dev)
++/*  FreeObject frees up a Object and puts it back on the free list */
++static void yaffs_free_obj(yaffs_obj_t *obj)
+ {
+-	/* Free the list of allocated tnodes */
+-	yaffs_TnodeList *tmp;
++	yaffs_dev_t *dev = obj->my_dev;
++
++	T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), obj, obj->my_inode));
+ 
+-	while (dev->allocatedTnodeList) {
+-		tmp = dev->allocatedTnodeList->next;
++	if (!obj)
++		YBUG();
++	if (obj->parent)
++		YBUG();
++	if (!ylist_empty(&obj->siblings))
++		YBUG();
+ 
+-		YFREE(dev->allocatedTnodeList->tnodes);
+-		YFREE(dev->allocatedTnodeList);
+-		dev->allocatedTnodeList = tmp;
+ 
++	if (obj->my_inode) {
++		/* We're still hooked up to a cached inode.
++		 * Don't delete now, but mark for later deletion
++		 */
++		obj->defered_free = 1;
++		return;
+ 	}
+ 
+-	dev->freeTnodes = NULL;
+-	dev->nFreeTnodes = 0;
+-}
++	yaffs_unhash_obj(obj);
+ 
+-static void yaffs_InitialiseTnodes(yaffs_Device *dev)
+-{
+-	dev->allocatedTnodeList = NULL;
+-	dev->freeTnodes = NULL;
+-	dev->nFreeTnodes = 0;
+-	dev->nTnodesCreated = 0;
++	yaffs_free_raw_obj(dev,obj);
++	dev->n_obj--;
++	dev->checkpoint_blocks_required = 0; /* force recalculation*/
+ }
+ 
+ 
+-void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos,
+-		unsigned val)
++void yaffs_handle_defered_free(yaffs_obj_t *obj)
+ {
+-	__u32 *map = (__u32 *)tn;
+-	__u32 bitInMap;
+-	__u32 bitInWord;
+-	__u32 wordInMap;
+-	__u32 mask;
+-
+-	pos &= YAFFS_TNODES_LEVEL0_MASK;
+-	val >>= dev->chunkGroupBits;
++	if (obj->defered_free)
++		yaffs_free_obj(obj);
++}
+ 
+-	bitInMap = pos * dev->tnodeWidth;
+-	wordInMap = bitInMap / 32;
+-	bitInWord = bitInMap & (32 - 1);
++static void yaffs_init_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	int i;
+ 
+-	mask = dev->tnodeMask << bitInWord;
++	dev->n_obj = 0;
++	dev->n_tnodes = 0;
+ 
+-	map[wordInMap] &= ~mask;
+-	map[wordInMap] |= (mask & (val << bitInWord));
++	yaffs_init_raw_tnodes_and_objs(dev);
+ 
+-	if (dev->tnodeWidth > (32 - bitInWord)) {
+-		bitInWord = (32 - bitInWord);
+-		wordInMap++;;
+-		mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord);
+-		map[wordInMap] &= ~mask;
+-		map[wordInMap] |= (mask & (val >> bitInWord));
++	for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
++		YINIT_LIST_HEAD(&dev->obj_bucket[i].list);
++		dev->obj_bucket[i].count = 0;
+ 	}
+ }
+ 
+-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn,
+-		unsigned pos)
++static int yaffs_find_nice_bucket(yaffs_dev_t *dev)
+ {
+-	__u32 *map = (__u32 *)tn;
+-	__u32 bitInMap;
+-	__u32 bitInWord;
+-	__u32 wordInMap;
+-	__u32 val;
++	int i;
++	int l = 999;
++	int lowest = 999999;
+ 
+-	pos &= YAFFS_TNODES_LEVEL0_MASK;
+ 
+-	bitInMap = pos * dev->tnodeWidth;
+-	wordInMap = bitInMap / 32;
+-	bitInWord = bitInMap & (32 - 1);
++	/* Search for the shortest list or one that
++	 * isn't too long.
++	 */
+ 
+-	val = map[wordInMap] >> bitInWord;
++	for (i = 0; i < 10 && lowest > 4; i++) {
++		dev->bucket_finder++;
++		dev->bucket_finder %= YAFFS_NOBJECT_BUCKETS;
++		if (dev->obj_bucket[dev->bucket_finder].count < lowest) {
++			lowest = dev->obj_bucket[dev->bucket_finder].count;
++			l = dev->bucket_finder;
++		}
+ 
+-	if	(dev->tnodeWidth > (32 - bitInWord)) {
+-		bitInWord = (32 - bitInWord);
+-		wordInMap++;;
+-		val |= (map[wordInMap] << bitInWord);
+ 	}
+ 
+-	val &= dev->tnodeMask;
+-	val <<= dev->chunkGroupBits;
+-
+-	return val;
++	return l;
+ }
+ 
+-/* ------------------- End of individual tnode manipulation -----------------*/
+-
+-/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------
+- * The look up tree is represented by the top tnode and the number of topLevel
+- * in the tree. 0 means only the level 0 tnode is in the tree.
+- */
+-
+-/* FindLevel0Tnode finds the level 0 tnode, if one exists. */
+-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev,
+-					yaffs_FileStructure *fStruct,
+-					__u32 chunkId)
++static int yaffs_new_obj_id(yaffs_dev_t *dev)
+ {
+-	yaffs_Tnode *tn = fStruct->top;
+-	__u32 i;
+-	int requiredTallness;
+-	int level = fStruct->topLevel;
+-
+-	/* Check sane level and chunk Id */
+-	if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL)
+-		return NULL;
++	int bucket = yaffs_find_nice_bucket(dev);
+ 
+-	if (chunkId > YAFFS_MAX_CHUNK_ID)
+-		return NULL;
++	/* Now find an object value that has not already been taken
++	 * by scanning the list.
++	 */
+ 
+-	/* First check we're tall enough (ie enough topLevel) */
++	int found = 0;
++	struct ylist_head *i;
+ 
+-	i = chunkId >> YAFFS_TNODES_LEVEL0_BITS;
+-	requiredTallness = 0;
+-	while (i) {
+-		i >>= YAFFS_TNODES_INTERNAL_BITS;
+-		requiredTallness++;
+-	}
++	__u32 n = (__u32) bucket;
+ 
+-	if (requiredTallness > fStruct->topLevel)
+-		return NULL; /* Not tall enough, so we can't find it */
++	/* yaffs_check_obj_hash_sane();  */
+ 
+-	/* Traverse down to level 0 */
+-	while (level > 0 && tn) {
+-		tn = tn->internal[(chunkId >>
+-			(YAFFS_TNODES_LEVEL0_BITS +
+-				(level - 1) *
+-				YAFFS_TNODES_INTERNAL_BITS)) &
+-			YAFFS_TNODES_INTERNAL_MASK];
+-		level--;
++	while (!found) {
++		found = 1;
++		n += YAFFS_NOBJECT_BUCKETS;
++		if (1 || dev->obj_bucket[bucket].count > 0) {
++			ylist_for_each(i, &dev->obj_bucket[bucket].list) {
++				/* If there is already one in the list */
++				if (i && ylist_entry(i, yaffs_obj_t,
++						hash_link)->obj_id == n) {
++					found = 0;
++				}
++			}
++		}
+ 	}
+ 
+-	return tn;
++	return n;
+ }
+ 
+-/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree.
+- * This happens in two steps:
+- *  1. If the tree isn't tall enough, then make it taller.
+- *  2. Scan down the tree towards the level 0 tnode adding tnodes if required.
+- *
+- * Used when modifying the tree.
+- *
+- *  If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will
+- *  be plugged into the ttree.
+- */
+-
+-static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev,
+-					yaffs_FileStructure *fStruct,
+-					__u32 chunkId,
+-					yaffs_Tnode *passedTn)
++static void yaffs_hash_obj(yaffs_obj_t *in)
+ {
+-	int requiredTallness;
+-	int i;
+-	int l;
+-	yaffs_Tnode *tn;
+-
+-	__u32 x;
++	int bucket = yaffs_hash_fn(in->obj_id);
++	yaffs_dev_t *dev = in->my_dev;
+ 
++	ylist_add(&in->hash_link, &dev->obj_bucket[bucket].list);
++	dev->obj_bucket[bucket].count++;
++}
+ 
+-	/* Check sane level and page Id */
+-	if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL)
+-		return NULL;
++yaffs_obj_t *yaffs_find_by_number(yaffs_dev_t *dev, __u32 number)
++{
++	int bucket = yaffs_hash_fn(number);
++	struct ylist_head *i;
++	yaffs_obj_t *in;
+ 
+-	if (chunkId > YAFFS_MAX_CHUNK_ID)
+-		return NULL;
++	ylist_for_each(i, &dev->obj_bucket[bucket].list) {
++		/* Look if it is in the list */
++		if (i) {
++			in = ylist_entry(i, yaffs_obj_t, hash_link);
++			if (in->obj_id == number) {
+ 
+-	/* First check we're tall enough (ie enough topLevel) */
++				/* Don't tell the VFS about this one if it is defered free */
++				if (in->defered_free)
++					return NULL;
+ 
+-	x = chunkId >> YAFFS_TNODES_LEVEL0_BITS;
+-	requiredTallness = 0;
+-	while (x) {
+-		x >>= YAFFS_TNODES_INTERNAL_BITS;
+-		requiredTallness++;
++				return in;
++			}
++		}
+ 	}
+ 
++	return NULL;
++}
+ 
+-	if (requiredTallness > fStruct->topLevel) {
+-		/* Not tall enough, gotta make the tree taller */
+-		for (i = fStruct->topLevel; i < requiredTallness; i++) {
++yaffs_obj_t *yaffs_new_obj(yaffs_dev_t *dev, int number,
++				    yaffs_obj_type type)
++{
++	yaffs_obj_t *theObject=NULL;
++	yaffs_tnode_t *tn = NULL;
+ 
+-			tn = yaffs_GetTnode(dev);
++	if (number < 0)
++		number = yaffs_new_obj_id(dev);
+ 
+-			if (tn) {
+-				tn->internal[0] = fStruct->top;
+-				fStruct->top = tn;
+-			} else {
+-				T(YAFFS_TRACE_ERROR,
+-				  (TSTR("yaffs: no more tnodes" TENDSTR)));
+-			}
+-		}
++	if (type == YAFFS_OBJECT_TYPE_FILE) {
++		tn = yaffs_get_tnode(dev);
++		if (!tn)
++			return NULL;
++	}
+ 
+-		fStruct->topLevel = requiredTallness;
++	theObject = yaffs_alloc_empty_obj(dev);
++	if (!theObject){
++		if(tn)
++			yaffs_free_tnode(dev,tn);
++		return NULL;
+ 	}
+ 
+-	/* Traverse down to level 0, adding anything we need */
+ 
+-	l = fStruct->topLevel;
+-	tn = fStruct->top;
++	if (theObject) {
++		theObject->fake = 0;
++		theObject->rename_allowed = 1;
++		theObject->unlink_allowed = 1;
++		theObject->obj_id = number;
++		yaffs_hash_obj(theObject);
++		theObject->variant_type = type;
++#ifdef CONFIG_YAFFS_WINCE
++		yfsd_win_file_time_now(theObject->win_atime);
++		theObject->win_ctime[0] = theObject->win_mtime[0] =
++		    theObject->win_atime[0];
++		theObject->win_ctime[1] = theObject->win_mtime[1] =
++		    theObject->win_atime[1];
++
++#else
+ 
+-	if (l > 0) {
+-		while (l > 0 && tn) {
+-			x = (chunkId >>
+-			     (YAFFS_TNODES_LEVEL0_BITS +
+-			      (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) &
+-			    YAFFS_TNODES_INTERNAL_MASK;
++		theObject->yst_atime = theObject->yst_mtime =
++		    theObject->yst_ctime = Y_CURRENT_TIME;
++#endif
++		switch (type) {
++		case YAFFS_OBJECT_TYPE_FILE:
++			theObject->variant.file_variant.file_size = 0;
++			theObject->variant.file_variant.scanned_size = 0;
++			theObject->variant.file_variant.shrink_size = 0xFFFFFFFF;	/* max __u32 */
++			theObject->variant.file_variant.top_level = 0;
++			theObject->variant.file_variant.top = tn;
++			break;
++		case YAFFS_OBJECT_TYPE_DIRECTORY:
++			YINIT_LIST_HEAD(&theObject->variant.dir_variant.
++					children);
++			YINIT_LIST_HEAD(&theObject->variant.dir_variant.
++					dirty);
++			break;
++		case YAFFS_OBJECT_TYPE_SYMLINK:
++		case YAFFS_OBJECT_TYPE_HARDLINK:
++		case YAFFS_OBJECT_TYPE_SPECIAL:
++			/* No action required */
++			break;
++		case YAFFS_OBJECT_TYPE_UNKNOWN:
++			/* todo this should not happen */
++			break;
++		}
++	}
+ 
++	return theObject;
++}
+ 
+-			if ((l > 1) && !tn->internal[x]) {
+-				/* Add missing non-level-zero tnode */
+-				tn->internal[x] = yaffs_GetTnode(dev);
++yaffs_obj_t *yaffs_find_or_create_by_number(yaffs_dev_t *dev,
++						int number,
++						yaffs_obj_type type)
++{
++	yaffs_obj_t *theObject = NULL;
+ 
+-			} else if (l == 1) {
+-				/* Looking from level 1 at level 0 */
+-				if (passedTn) {
+-					/* If we already have one, then release it.*/
+-					if (tn->internal[x])
+-						yaffs_FreeTnode(dev, tn->internal[x]);
+-					tn->internal[x] = passedTn;
++	if (number > 0)
++		theObject = yaffs_find_by_number(dev, number);
+ 
+-				} else if (!tn->internal[x]) {
+-					/* Don't have one, none passed in */
+-					tn->internal[x] = yaffs_GetTnode(dev);
+-				}
+-			}
++	if (!theObject)
++		theObject = yaffs_new_obj(dev, number, type);
+ 
+-			tn = tn->internal[x];
+-			l--;
+-		}
+-	} else {
+-		/* top is level 0 */
+-		if (passedTn) {
+-			memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
+-			yaffs_FreeTnode(dev, passedTn);
+-		}
+-	}
++	return theObject;
+ 
+-	return tn;
+ }
+ 
+-static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk,
+-				yaffs_ExtendedTags *tags, int objectId,
+-				int chunkInInode)
++
++YCHAR *yaffs_clone_str(const YCHAR *str)
+ {
+-	int j;
++	YCHAR *newStr = NULL;
++	int len;
+ 
+-	for (j = 0; theChunk && j < dev->chunkGroupSize; j++) {
+-		if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock,
+-				theChunk % dev->nChunksPerBlock)) {
+-			yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL,
+-							tags);
+-			if (yaffs_TagsMatch(tags, objectId, chunkInInode)) {
+-				/* found it; */
+-				return theChunk;
+-			}
+-		}
+-		theChunk++;
++	if (!str)
++		str = _Y("");
++
++	len = yaffs_strnlen(str,YAFFS_MAX_ALIAS_LENGTH);
++	newStr = YMALLOC((len + 1) * sizeof(YCHAR));
++	if (newStr){
++		yaffs_strncpy(newStr, str,len);
++		newStr[len] = 0;
+ 	}
+-	return -1;
+-}
++	return newStr;
+ 
++}
+ 
+-/* DeleteWorker scans backwards through the tnode tree and deletes all the
+- * chunks and tnodes in the file
+- * Returns 1 if the tree was deleted.
+- * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete.
++/*
++ * Mknod (create) a new object.
++ * equiv_obj only has meaning for a hard link;
++ * aliasString only has meaning for a symlink.
++ * rdev only has meaning for devices (a subset of special objects)
+  */
+ 
+-static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level,
+-			      int chunkOffset, int *limit)
++static yaffs_obj_t *yaffs_create_obj(yaffs_obj_type type,
++				       yaffs_obj_t *parent,
++				       const YCHAR *name,
++				       __u32 mode,
++				       __u32 uid,
++				       __u32 gid,
++				       yaffs_obj_t *equiv_obj,
++				       const YCHAR *aliasString, __u32 rdev)
+ {
+-	int i;
+-	int chunkInInode;
+-	int theChunk;
+-	yaffs_ExtendedTags tags;
+-	int foundChunk;
+-	yaffs_Device *dev = in->myDev;
+-
+-	int allDone = 1;
+-
+-	if (tn) {
+-		if (level > 0) {
+-			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
+-			     i--) {
+-				if (tn->internal[i]) {
+-					if (limit && (*limit) < 0) {
+-						allDone = 0;
+-					} else {
+-						allDone =
+-							yaffs_DeleteWorker(in,
+-								tn->
+-								internal
+-								[i],
+-								level -
+-								1,
+-								(chunkOffset
+-									<<
+-									YAFFS_TNODES_INTERNAL_BITS)
+-								+ i,
+-								limit);
+-					}
+-					if (allDone) {
+-						yaffs_FreeTnode(dev,
+-								tn->
+-								internal[i]);
+-						tn->internal[i] = NULL;
+-					}
+-				}
+-			}
+-			return (allDone) ? 1 : 0;
+-		} else if (level == 0) {
+-			int hitLimit = 0;
+-
+-			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit;
+-					i--) {
+-				theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+-				if (theChunk) {
+-
+-					chunkInInode = (chunkOffset <<
+-						YAFFS_TNODES_LEVEL0_BITS) + i;
+-
+-					foundChunk =
+-						yaffs_FindChunkInGroup(dev,
+-								theChunk,
+-								&tags,
+-								in->objectId,
+-								chunkInInode);
+-
+-					if (foundChunk > 0) {
+-						yaffs_DeleteChunk(dev,
+-								  foundChunk, 1,
+-								  __LINE__);
+-						in->nDataChunks--;
+-						if (limit) {
+-							*limit = *limit - 1;
+-							if (*limit <= 0)
+-								hitLimit = 1;
+-						}
+-
+-					}
+-
+-					yaffs_PutLevel0Tnode(dev, tn, i, 0);
+-				}
+-
+-			}
+-			return (i < 0) ? 1 : 0;
+-
+-		}
+-
+-	}
+-
+-	return 1;
+-
+-}
+-
+-static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk)
+-{
+-	yaffs_BlockInfo *theBlock;
+-
+-	T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk));
+-
+-	theBlock = yaffs_GetBlockInfo(dev, chunk / dev->nChunksPerBlock);
+-	if (theBlock) {
+-		theBlock->softDeletions++;
+-		dev->nFreeChunks++;
+-	}
+-}
+-
+-/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file.
+- * All soft deleting does is increment the block's softdelete count and pulls the chunk out
+- * of the tnode.
+- * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted.
+- */
+-
+-static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn,
+-				  __u32 level, int chunkOffset)
+-{
+-	int i;
+-	int theChunk;
+-	int allDone = 1;
+-	yaffs_Device *dev = in->myDev;
+-
+-	if (tn) {
+-		if (level > 0) {
+-
+-			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
+-			     i--) {
+-				if (tn->internal[i]) {
+-					allDone =
+-					    yaffs_SoftDeleteWorker(in,
+-								   tn->
+-								   internal[i],
+-								   level - 1,
+-								   (chunkOffset
+-								    <<
+-								    YAFFS_TNODES_INTERNAL_BITS)
+-								   + i);
+-					if (allDone) {
+-						yaffs_FreeTnode(dev,
+-								tn->
+-								internal[i]);
+-						tn->internal[i] = NULL;
+-					} else {
+-						/* Hoosterman... how could this happen? */
+-					}
+-				}
+-			}
+-			return (allDone) ? 1 : 0;
+-		} else if (level == 0) {
+-
+-			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) {
+-				theChunk = yaffs_GetChunkGroupBase(dev, tn, i);
+-				if (theChunk) {
+-					/* Note this does not find the real chunk, only the chunk group.
+-					 * We make an assumption that a chunk group is not larger than
+-					 * a block.
+-					 */
+-					yaffs_SoftDeleteChunk(dev, theChunk);
+-					yaffs_PutLevel0Tnode(dev, tn, i, 0);
+-				}
+-
+-			}
+-			return 1;
+-
+-		}
+-
+-	}
+-
+-	return 1;
+-
+-}
+-
+-static void yaffs_SoftDeleteFile(yaffs_Object *obj)
+-{
+-	if (obj->deleted &&
+-	    obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) {
+-		if (obj->nDataChunks <= 0) {
+-			/* Empty file with no duplicate object headers, just delete it immediately */
+-			yaffs_FreeTnode(obj->myDev,
+-					obj->variant.fileVariant.top);
+-			obj->variant.fileVariant.top = NULL;
+-			T(YAFFS_TRACE_TRACING,
+-			  (TSTR("yaffs: Deleting empty file %d" TENDSTR),
+-			   obj->objectId));
+-			yaffs_DoGenericObjectDeletion(obj);
+-		} else {
+-			yaffs_SoftDeleteWorker(obj,
+-					       obj->variant.fileVariant.top,
+-					       obj->variant.fileVariant.
+-					       topLevel, 0);
+-			obj->softDeleted = 1;
+-		}
+-	}
+-}
+-
+-/* Pruning removes any part of the file structure tree that is beyond the
+- * bounds of the file (ie that does not point to chunks).
+- *
+- * A file should only get pruned when its size is reduced.
+- *
+- * Before pruning, the chunks must be pulled from the tree and the
+- * level 0 tnode entries must be zeroed out.
+- * Could also use this for file deletion, but that's probably better handled
+- * by a special case.
+- */
+-
+-static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn,
+-				__u32 level, int del0)
+-{
+-	int i;
+-	int hasData;
+-
+-	if (tn) {
+-		hasData = 0;
+-
+-		for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) {
+-			if (tn->internal[i] && level > 0) {
+-				tn->internal[i] =
+-				    yaffs_PruneWorker(dev, tn->internal[i],
+-						      level - 1,
+-						      (i == 0) ? del0 : 1);
+-			}
+-
+-			if (tn->internal[i])
+-				hasData++;
+-		}
+-
+-		if (hasData == 0 && del0) {
+-			/* Free and return NULL */
+-
+-			yaffs_FreeTnode(dev, tn);
+-			tn = NULL;
+-		}
+-
+-	}
+-
+-	return tn;
+-
+-}
+-
+-static int yaffs_PruneFileStructure(yaffs_Device *dev,
+-				yaffs_FileStructure *fStruct)
+-{
+-	int i;
+-	int hasData;
+-	int done = 0;
+-	yaffs_Tnode *tn;
+-
+-	if (fStruct->topLevel > 0) {
+-		fStruct->top =
+-		    yaffs_PruneWorker(dev, fStruct->top, fStruct->topLevel, 0);
+-
+-		/* Now we have a tree with all the non-zero branches NULL but the height
+-		 * is the same as it was.
+-		 * Let's see if we can trim internal tnodes to shorten the tree.
+-		 * We can do this if only the 0th element in the tnode is in use
+-		 * (ie all the non-zero are NULL)
+-		 */
+-
+-		while (fStruct->topLevel && !done) {
+-			tn = fStruct->top;
+-
+-			hasData = 0;
+-			for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) {
+-				if (tn->internal[i])
+-					hasData++;
+-			}
+-
+-			if (!hasData) {
+-				fStruct->top = tn->internal[0];
+-				fStruct->topLevel--;
+-				yaffs_FreeTnode(dev, tn);
+-			} else {
+-				done = 1;
+-			}
+-		}
+-	}
+-
+-	return YAFFS_OK;
+-}
+-
+-/*-------------------- End of File Structure functions.-------------------*/
+-
+-/* yaffs_CreateFreeObjects creates a bunch more objects and
+- * adds them to the object free list.
+- */
+-static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects)
+-{
+-	int i;
+-	yaffs_Object *newObjects;
+-	yaffs_ObjectList *list;
+-
+-	if (nObjects < 1)
+-		return YAFFS_OK;
+-
+-	/* make these things */
+-	newObjects = YMALLOC(nObjects * sizeof(yaffs_Object));
+-	list = YMALLOC(sizeof(yaffs_ObjectList));
+-
+-	if (!newObjects || !list) {
+-		if (newObjects)
+-			YFREE(newObjects);
+-		if (list)
+-			YFREE(list);
+-		T(YAFFS_TRACE_ALLOCATE,
+-		  (TSTR("yaffs: Could not allocate more objects" TENDSTR)));
+-		return YAFFS_FAIL;
+-	}
+-
+-	/* Hook them into the free list */
+-	for (i = 0; i < nObjects - 1; i++) {
+-		newObjects[i].siblings.next =
+-				(struct ylist_head *)(&newObjects[i + 1]);
+-	}
+-
+-	newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects;
+-	dev->freeObjects = newObjects;
+-	dev->nFreeObjects += nObjects;
+-	dev->nObjectsCreated += nObjects;
+-
+-	/* Now add this bunch of Objects to a list for freeing up. */
+-
+-	list->objects = newObjects;
+-	list->next = dev->allocatedObjectList;
+-	dev->allocatedObjectList = list;
+-
+-	return YAFFS_OK;
+-}
+-
+-
+-/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */
+-static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev)
+-{
+-	yaffs_Object *tn = NULL;
+-
+-#ifdef VALGRIND_TEST
+-	tn = YMALLOC(sizeof(yaffs_Object));
+-#else
+-	/* If there are none left make more */
+-	if (!dev->freeObjects)
+-		yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS);
+-
+-	if (dev->freeObjects) {
+-		tn = dev->freeObjects;
+-		dev->freeObjects =
+-			(yaffs_Object *) (dev->freeObjects->siblings.next);
+-		dev->nFreeObjects--;
+-	}
+-#endif
+-	if (tn) {
+-		/* Now sweeten it up... */
+-
+-		memset(tn, 0, sizeof(yaffs_Object));
+-		tn->beingCreated = 1;
+-
+-		tn->myDev = dev;
+-		tn->hdrChunk = 0;
+-		tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN;
+-		YINIT_LIST_HEAD(&(tn->hardLinks));
+-		YINIT_LIST_HEAD(&(tn->hashLink));
+-		YINIT_LIST_HEAD(&tn->siblings);
+-
+-
+-		/* Now make the directory sane */
+-		if (dev->rootDir) {
+-			tn->parent = dev->rootDir;
+-			ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children);
+-		}
+-
+-		/* Add it to the lost and found directory.
+-		 * NB Can't put root or lostNFound in lostNFound so
+-		 * check if lostNFound exists first
+-		 */
+-		if (dev->lostNFoundDir)
+-			yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn);
+-
+-		tn->beingCreated = 0;
+-	}
+-
+-	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
+-
+-	return tn;
+-}
+-
+-static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number,
+-					       __u32 mode)
+-{
+-
+-	yaffs_Object *obj =
+-	    yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY);
+-	if (obj) {
+-		obj->fake = 1;		/* it is fake so it might have no NAND presence... */
+-		obj->renameAllowed = 0;	/* ... and we're not allowed to rename it... */
+-		obj->unlinkAllowed = 0;	/* ... or unlink it */
+-		obj->deleted = 0;
+-		obj->unlinked = 0;
+-		obj->yst_mode = mode;
+-		obj->myDev = dev;
+-		obj->hdrChunk = 0;	/* Not a valid chunk. */
+-	}
+-
+-	return obj;
+-
+-}
+-
+-static void yaffs_UnhashObject(yaffs_Object *tn)
+-{
+-	int bucket;
+-	yaffs_Device *dev = tn->myDev;
+-
+-	/* If it is still linked into the bucket list, free from the list */
+-	if (!ylist_empty(&tn->hashLink)) {
+-		ylist_del_init(&tn->hashLink);
+-		bucket = yaffs_HashFunction(tn->objectId);
+-		dev->objectBucket[bucket].count--;
+-	}
+-}
+-
+-/*  FreeObject frees up a Object and puts it back on the free list */
+-static void yaffs_FreeObject(yaffs_Object *tn)
+-{
+-	yaffs_Device *dev = tn->myDev;
+-
+-#ifdef __KERNEL__
+-	T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode));
+-#endif
+-
+-	if (tn->parent)
+-		YBUG();
+-	if (!ylist_empty(&tn->siblings))
+-		YBUG();
+-
+-
+-#ifdef __KERNEL__
+-	if (tn->myInode) {
+-		/* We're still hooked up to a cached inode.
+-		 * Don't delete now, but mark for later deletion
+-		 */
+-		tn->deferedFree = 1;
+-		return;
+-	}
+-#endif
+-
+-	yaffs_UnhashObject(tn);
+-
+-#ifdef VALGRIND_TEST
+-	YFREE(tn);
+-#else
+-	/* Link into the free list. */
+-	tn->siblings.next = (struct ylist_head *)(dev->freeObjects);
+-	dev->freeObjects = tn;
+-	dev->nFreeObjects++;
+-#endif
+-	dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
+-}
+-
+-#ifdef __KERNEL__
+-
+-void yaffs_HandleDeferedFree(yaffs_Object *obj)
+-{
+-	if (obj->deferedFree)
+-		yaffs_FreeObject(obj);
+-}
+-
+-#endif
+-
+-static void yaffs_DeinitialiseObjects(yaffs_Device *dev)
+-{
+-	/* Free the list of allocated Objects */
+-
+-	yaffs_ObjectList *tmp;
+-
+-	while (dev->allocatedObjectList) {
+-		tmp = dev->allocatedObjectList->next;
+-		YFREE(dev->allocatedObjectList->objects);
+-		YFREE(dev->allocatedObjectList);
+-
+-		dev->allocatedObjectList = tmp;
+-	}
+-
+-	dev->freeObjects = NULL;
+-	dev->nFreeObjects = 0;
+-}
+-
+-static void yaffs_InitialiseObjects(yaffs_Device *dev)
+-{
+-	int i;
+-
+-	dev->allocatedObjectList = NULL;
+-	dev->freeObjects = NULL;
+-	dev->nFreeObjects = 0;
+-
+-	for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
+-		YINIT_LIST_HEAD(&dev->objectBucket[i].list);
+-		dev->objectBucket[i].count = 0;
+-	}
+-}
+-
+-static int yaffs_FindNiceObjectBucket(yaffs_Device *dev)
+-{
+-	static int x;
+-	int i;
+-	int l = 999;
+-	int lowest = 999999;
+-
+-	/* First let's see if we can find one that's empty. */
+-
+-	for (i = 0; i < 10 && lowest > 0; i++) {
+-		x++;
+-		x %= YAFFS_NOBJECT_BUCKETS;
+-		if (dev->objectBucket[x].count < lowest) {
+-			lowest = dev->objectBucket[x].count;
+-			l = x;
+-		}
+-
+-	}
+-
+-	/* If we didn't find an empty list, then try
+-	 * looking a bit further for a short one
+-	 */
+-
+-	for (i = 0; i < 10 && lowest > 3; i++) {
+-		x++;
+-		x %= YAFFS_NOBJECT_BUCKETS;
+-		if (dev->objectBucket[x].count < lowest) {
+-			lowest = dev->objectBucket[x].count;
+-			l = x;
+-		}
+-
+-	}
+-
+-	return l;
+-}
+-
+-static int yaffs_CreateNewObjectNumber(yaffs_Device *dev)
+-{
+-	int bucket = yaffs_FindNiceObjectBucket(dev);
+-
+-	/* Now find an object value that has not already been taken
+-	 * by scanning the list.
+-	 */
+-
+-	int found = 0;
+-	struct ylist_head *i;
+-
+-	__u32 n = (__u32) bucket;
+-
+-	/* yaffs_CheckObjectHashSanity();  */
+-
+-	while (!found) {
+-		found = 1;
+-		n += YAFFS_NOBJECT_BUCKETS;
+-		if (1 || dev->objectBucket[bucket].count > 0) {
+-			ylist_for_each(i, &dev->objectBucket[bucket].list) {
+-				/* If there is already one in the list */
+-				if (i && ylist_entry(i, yaffs_Object,
+-						hashLink)->objectId == n) {
+-					found = 0;
+-				}
+-			}
+-		}
+-	}
+-
+-	return n;
+-}
+-
+-static void yaffs_HashObject(yaffs_Object *in)
+-{
+-	int bucket = yaffs_HashFunction(in->objectId);
+-	yaffs_Device *dev = in->myDev;
+-
+-	ylist_add(&in->hashLink, &dev->objectBucket[bucket].list);
+-	dev->objectBucket[bucket].count++;
+-}
+-
+-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number)
+-{
+-	int bucket = yaffs_HashFunction(number);
+-	struct ylist_head *i;
+-	yaffs_Object *in;
+-
+-	ylist_for_each(i, &dev->objectBucket[bucket].list) {
+-		/* Look if it is in the list */
+-		if (i) {
+-			in = ylist_entry(i, yaffs_Object, hashLink);
+-			if (in->objectId == number) {
+-#ifdef __KERNEL__
+-				/* Don't tell the VFS about this one if it is defered free */
+-				if (in->deferedFree)
+-					return NULL;
+-#endif
+-
+-				return in;
+-			}
+-		}
+-	}
+-
+-	return NULL;
+-}
+-
+-yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number,
+-				    yaffs_ObjectType type)
+-{
+-	yaffs_Object *theObject;
+-	yaffs_Tnode *tn = NULL;
+-
+-	if (number < 0)
+-		number = yaffs_CreateNewObjectNumber(dev);
+-
+-	theObject = yaffs_AllocateEmptyObject(dev);
+-	if (!theObject)
+-		return NULL;
+-
+-	if (type == YAFFS_OBJECT_TYPE_FILE) {
+-		tn = yaffs_GetTnode(dev);
+-		if (!tn) {
+-			yaffs_FreeObject(theObject);
+-			return NULL;
+-		}
+-	}
+-
+-	if (theObject) {
+-		theObject->fake = 0;
+-		theObject->renameAllowed = 1;
+-		theObject->unlinkAllowed = 1;
+-		theObject->objectId = number;
+-		yaffs_HashObject(theObject);
+-		theObject->variantType = type;
+-#ifdef CONFIG_YAFFS_WINCE
+-		yfsd_WinFileTimeNow(theObject->win_atime);
+-		theObject->win_ctime[0] = theObject->win_mtime[0] =
+-		    theObject->win_atime[0];
+-		theObject->win_ctime[1] = theObject->win_mtime[1] =
+-		    theObject->win_atime[1];
+-
+-#else
+-
+-		theObject->yst_atime = theObject->yst_mtime =
+-		    theObject->yst_ctime = Y_CURRENT_TIME;
+-#endif
+-		switch (type) {
+-		case YAFFS_OBJECT_TYPE_FILE:
+-			theObject->variant.fileVariant.fileSize = 0;
+-			theObject->variant.fileVariant.scannedFileSize = 0;
+-			theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF;	/* max __u32 */
+-			theObject->variant.fileVariant.topLevel = 0;
+-			theObject->variant.fileVariant.top = tn;
+-			break;
+-		case YAFFS_OBJECT_TYPE_DIRECTORY:
+-			YINIT_LIST_HEAD(&theObject->variant.directoryVariant.
+-					children);
+-			break;
+-		case YAFFS_OBJECT_TYPE_SYMLINK:
+-		case YAFFS_OBJECT_TYPE_HARDLINK:
+-		case YAFFS_OBJECT_TYPE_SPECIAL:
+-			/* No action required */
+-			break;
+-		case YAFFS_OBJECT_TYPE_UNKNOWN:
+-			/* todo this should not happen */
+-			break;
+-		}
+-	}
+-
+-	return theObject;
+-}
+-
+-static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev,
+-						      int number,
+-						      yaffs_ObjectType type)
+-{
+-	yaffs_Object *theObject = NULL;
+-
+-	if (number > 0)
+-		theObject = yaffs_FindObjectByNumber(dev, number);
+-
+-	if (!theObject)
+-		theObject = yaffs_CreateNewObject(dev, number, type);
+-
+-	return theObject;
+-
+-}
+-
+-
+-static YCHAR *yaffs_CloneString(const YCHAR *str)
+-{
+-	YCHAR *newStr = NULL;
+-
+-	if (str && *str) {
+-		newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR));
+-		if (newStr)
+-			yaffs_strcpy(newStr, str);
+-	}
+-
+-	return newStr;
+-
+-}
+-
+-/*
+- * Mknod (create) a new object.
+- * equivalentObject only has meaning for a hard link;
+- * aliasString only has meaning for a sumlink.
+- * rdev only has meaning for devices (a subset of special objects)
+- */
+-
+-static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type,
+-				       yaffs_Object *parent,
+-				       const YCHAR *name,
+-				       __u32 mode,
+-				       __u32 uid,
+-				       __u32 gid,
+-				       yaffs_Object *equivalentObject,
+-				       const YCHAR *aliasString, __u32 rdev)
+-{
+-	yaffs_Object *in;
+-	YCHAR *str = NULL;
+-
+-	yaffs_Device *dev = parent->myDev;
+-
+-	/* Check if the entry exists. If it does then fail the call since we don't want a dup.*/
+-	if (yaffs_FindObjectByName(parent, name))
+-		return NULL;
+-
+-	in = yaffs_CreateNewObject(dev, -1, type);
+-
+-	if (!in)
+-		return YAFFS_FAIL;
+-
+-	if (type == YAFFS_OBJECT_TYPE_SYMLINK) {
+-		str = yaffs_CloneString(aliasString);
+-		if (!str) {
+-			yaffs_FreeObject(in);
+-			return NULL;
+-		}
+-	}
+-
+-
+-
+-	if (in) {
+-		in->hdrChunk = 0;
+-		in->valid = 1;
+-		in->variantType = type;
+-
+-		in->yst_mode = mode;
+-
+-#ifdef CONFIG_YAFFS_WINCE
+-		yfsd_WinFileTimeNow(in->win_atime);
+-		in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0];
+-		in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1];
+-
+-#else
+-		in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME;
+-
+-		in->yst_rdev = rdev;
+-		in->yst_uid = uid;
+-		in->yst_gid = gid;
+-#endif
+-		in->nDataChunks = 0;
+-
+-		yaffs_SetObjectName(in, name);
+-		in->dirty = 1;
+-
+-		yaffs_AddObjectToDirectory(parent, in);
+-
+-		in->myDev = parent->myDev;
+-
+-		switch (type) {
+-		case YAFFS_OBJECT_TYPE_SYMLINK:
+-			in->variant.symLinkVariant.alias = str;
+-			break;
+-		case YAFFS_OBJECT_TYPE_HARDLINK:
+-			in->variant.hardLinkVariant.equivalentObject =
+-				equivalentObject;
+-			in->variant.hardLinkVariant.equivalentObjectId =
+-				equivalentObject->objectId;
+-			ylist_add(&in->hardLinks, &equivalentObject->hardLinks);
+-			break;
+-		case YAFFS_OBJECT_TYPE_FILE:
+-		case YAFFS_OBJECT_TYPE_DIRECTORY:
+-		case YAFFS_OBJECT_TYPE_SPECIAL:
+-		case YAFFS_OBJECT_TYPE_UNKNOWN:
+-			/* do nothing */
+-			break;
+-		}
+-
+-		if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) {
+-			/* Could not create the object header, fail the creation */
+-			yaffs_DeleteObject(in);
+-			in = NULL;
+-		}
+-
+-	}
+-
+-	return in;
+-}
+-
+-yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name,
+-			__u32 mode, __u32 uid, __u32 gid)
+-{
+-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode,
+-				uid, gid, NULL, NULL, 0);
+-}
+-
+-yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name,
+-				__u32 mode, __u32 uid, __u32 gid)
+-{
+-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name,
+-				 mode, uid, gid, NULL, NULL, 0);
+-}
+-
+-yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
+-				__u32 mode, __u32 uid, __u32 gid, __u32 rdev)
+-{
+-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode,
+-				 uid, gid, NULL, NULL, rdev);
+-}
+-
+-yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name,
+-				__u32 mode, __u32 uid, __u32 gid,
+-				const YCHAR *alias)
+-{
+-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode,
+-				uid, gid, NULL, alias, 0);
+-}
+-
+-/* yaffs_Link returns the object id of the equivalent object.*/
+-yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name,
+-			yaffs_Object *equivalentObject)
+-{
+-	/* Get the real object in case we were fed a hard link as an equivalent object */
+-	equivalentObject = yaffs_GetEquivalentObject(equivalentObject);
+-
+-	if (yaffs_MknodObject
+-	    (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0,
+-	     equivalentObject, NULL, 0)) {
+-		return equivalentObject;
+-	} else {
+-		return NULL;
+-	}
+-
+-}
+-
+-static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir,
+-				const YCHAR *newName, int force, int shadows)
+-{
+-	int unlinkOp;
+-	int deleteOp;
+-
+-	yaffs_Object *existingTarget;
+-
+-	if (newDir == NULL)
+-		newDir = obj->parent;	/* use the old directory */
+-
+-	if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+-		T(YAFFS_TRACE_ALWAYS,
+-		  (TSTR
+-		   ("tragedy: yaffs_ChangeObjectName: newDir is not a directory"
+-		    TENDSTR)));
+-		YBUG();
+-	}
+-
+-	/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
+-	if (obj->myDev->isYaffs2)
+-		unlinkOp = (newDir == obj->myDev->unlinkedDir);
+-	else
+-		unlinkOp = (newDir == obj->myDev->unlinkedDir
+-			    && obj->variantType == YAFFS_OBJECT_TYPE_FILE);
+-
+-	deleteOp = (newDir == obj->myDev->deletedDir);
+-
+-	existingTarget = yaffs_FindObjectByName(newDir, newName);
+-
+-	/* If the object is a file going into the unlinked directory,
+-	 *   then it is OK to just stuff it in since duplicate names are allowed.
+-	 *   else only proceed if the new name does not exist and if we're putting
+-	 *   it into a directory.
+-	 */
+-	if ((unlinkOp ||
+-	     deleteOp ||
+-	     force ||
+-	     (shadows > 0) ||
+-	     !existingTarget) &&
+-	    newDir->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) {
+-		yaffs_SetObjectName(obj, newName);
+-		obj->dirty = 1;
+-
+-		yaffs_AddObjectToDirectory(newDir, obj);
+-
+-		if (unlinkOp)
+-			obj->unlinked = 1;
+-
+-		/* If it is a deletion then we mark it as a shrink for gc purposes. */
+-		if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0)
+-			return YAFFS_OK;
+-	}
+-
+-	return YAFFS_FAIL;
+-}
+-
+-int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName,
+-		yaffs_Object *newDir, const YCHAR *newName)
+-{
+-	yaffs_Object *obj = NULL;
+-	yaffs_Object *existingTarget = NULL;
+-	int force = 0;
+-
+-
+-	if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+-		YBUG();
+-	if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+-		YBUG();
+-
+-#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
+-	/* Special case for case insemsitive systems (eg. WinCE).
+-	 * While look-up is case insensitive, the name isn't.
+-	 * Therefore we might want to change x.txt to X.txt
+-	*/
+-	if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0)
+-		force = 1;
+-#endif
+-
+-	else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH)
+-		/* ENAMETOOLONG */
+-		return YAFFS_FAIL;
+-
+-	obj = yaffs_FindObjectByName(oldDir, oldName);
+-
+-	if (obj && obj->renameAllowed) {
+-
+-		/* Now do the handling for an existing target, if there is one */
+-
+-		existingTarget = yaffs_FindObjectByName(newDir, newName);
+-		if (existingTarget &&
+-			existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
+-			!ylist_empty(&existingTarget->variant.directoryVariant.children)) {
+-			/* There is a target that is a non-empty directory, so we fail */
+-			return YAFFS_FAIL;	/* EEXIST or ENOTEMPTY */
+-		} else if (existingTarget && existingTarget != obj) {
+-			/* Nuke the target first, using shadowing,
+-			 * but only if it isn't the same object
+-			 */
+-			yaffs_ChangeObjectName(obj, newDir, newName, force,
+-						existingTarget->objectId);
+-			yaffs_UnlinkObject(existingTarget);
+-		}
+-
+-		return yaffs_ChangeObjectName(obj, newDir, newName, 1, 0);
+-	}
+-	return YAFFS_FAIL;
+-}
+-
+-/*------------------------- Block Management and Page Allocation ----------------*/
+-
+-static int yaffs_InitialiseBlocks(yaffs_Device *dev)
+-{
+-	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
+-
+-	dev->blockInfo = NULL;
+-	dev->chunkBits = NULL;
+-
+-	dev->allocationBlock = -1;	/* force it to get a new one */
+-
+-	/* If the first allocation strategy fails, thry the alternate one */
+-	dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo));
+-	if (!dev->blockInfo) {
+-		dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo));
+-		dev->blockInfoAlt = 1;
+-	} else
+-		dev->blockInfoAlt = 0;
+-
+-	if (dev->blockInfo) {
+-		/* Set up dynamic blockinfo stuff. */
+-		dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */
+-		dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks);
+-		if (!dev->chunkBits) {
+-			dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks);
+-			dev->chunkBitsAlt = 1;
+-		} else
+-			dev->chunkBitsAlt = 0;
+-	}
+-
+-	if (dev->blockInfo && dev->chunkBits) {
+-		memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo));
+-		memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks);
+-		return YAFFS_OK;
+-	}
+-
+-	return YAFFS_FAIL;
+-}
+-
+-static void yaffs_DeinitialiseBlocks(yaffs_Device *dev)
+-{
+-	if (dev->blockInfoAlt && dev->blockInfo)
+-		YFREE_ALT(dev->blockInfo);
+-	else if (dev->blockInfo)
+-		YFREE(dev->blockInfo);
+-
+-	dev->blockInfoAlt = 0;
+-
+-	dev->blockInfo = NULL;
+-
+-	if (dev->chunkBitsAlt && dev->chunkBits)
+-		YFREE_ALT(dev->chunkBits);
+-	else if (dev->chunkBits)
+-		YFREE(dev->chunkBits);
+-	dev->chunkBitsAlt = 0;
+-	dev->chunkBits = NULL;
+-}
+-
+-static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev,
+-					yaffs_BlockInfo *bi)
+-{
+-	int i;
+-	__u32 seq;
+-	yaffs_BlockInfo *b;
+-
+-	if (!dev->isYaffs2)
+-		return 1;	/* disqualification only applies to yaffs2. */
+-
+-	if (!bi->hasShrinkHeader)
+-		return 1;	/* can gc */
+-
+-	/* Find the oldest dirty sequence number if we don't know it and save it
+-	 * so we don't have to keep recomputing it.
+-	 */
+-	if (!dev->oldestDirtySequence) {
+-		seq = dev->sequenceNumber;
+-
+-		for (i = dev->internalStartBlock; i <= dev->internalEndBlock;
+-				i++) {
+-			b = yaffs_GetBlockInfo(dev, i);
+-			if (b->blockState == YAFFS_BLOCK_STATE_FULL &&
+-			    (b->pagesInUse - b->softDeletions) <
+-			    dev->nChunksPerBlock && b->sequenceNumber < seq) {
+-				seq = b->sequenceNumber;
+-			}
+-		}
+-		dev->oldestDirtySequence = seq;
+-	}
+-
+-	/* Can't do gc of this block if there are any blocks older than this one that have
+-	 * discarded pages.
+-	 */
+-	return (bi->sequenceNumber <= dev->oldestDirtySequence);
+-}
+-
+-/* FindDiretiestBlock is used to select the dirtiest block (or close enough)
+- * for garbage collection.
+- */
+-
+-static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev,
+-					int aggressive)
+-{
+-	int b = dev->currentDirtyChecker;
+-
+-	int i;
+-	int iterations;
+-	int dirtiest = -1;
+-	int pagesInUse = 0;
+-	int prioritised = 0;
+-	yaffs_BlockInfo *bi;
+-	int pendingPrioritisedExist = 0;
+-
+-	/* First let's see if we need to grab a prioritised block */
+-	if (dev->hasPendingPrioritisedGCs) {
+-		for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) {
+-
+-			bi = yaffs_GetBlockInfo(dev, i);
+-			/* yaffs_VerifyBlock(dev,bi,i); */
+-
+-			if (bi->gcPrioritise) {
+-				pendingPrioritisedExist = 1;
+-				if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
+-				   yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
+-					pagesInUse = (bi->pagesInUse - bi->softDeletions);
+-					dirtiest = i;
+-					prioritised = 1;
+-					aggressive = 1; /* Fool the non-aggressive skip logiv below */
+-				}
+-			}
+-		}
+-
+-		if (!pendingPrioritisedExist) /* None found, so we can clear this */
+-			dev->hasPendingPrioritisedGCs = 0;
+-	}
+-
+-	/* If we're doing aggressive GC then we are happy to take a less-dirty block, and
+-	 * search harder.
+-	 * else (we're doing a leasurely gc), then we only bother to do this if the
+-	 * block has only a few pages in use.
+-	 */
+-
+-	dev->nonAggressiveSkip--;
+-
+-	if (!aggressive && (dev->nonAggressiveSkip > 0))
+-		return -1;
+-
+-	if (!prioritised)
+-		pagesInUse =
+-			(aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1;
+-
+-	if (aggressive)
+-		iterations =
+-		    dev->internalEndBlock - dev->internalStartBlock + 1;
+-	else {
+-		iterations =
+-		    dev->internalEndBlock - dev->internalStartBlock + 1;
+-		iterations = iterations / 16;
+-		if (iterations > 200)
+-			iterations = 200;
+-	}
+-
+-	for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) {
+-		b++;
+-		if (b < dev->internalStartBlock || b > dev->internalEndBlock)
+-			b = dev->internalStartBlock;
+-
+-		if (b < dev->internalStartBlock || b > dev->internalEndBlock) {
+-			T(YAFFS_TRACE_ERROR,
+-			  (TSTR("**>> Block %d is not valid" TENDSTR), b));
+-			YBUG();
+-		}
+-
+-		bi = yaffs_GetBlockInfo(dev, b);
+-
+-		if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
+-			(bi->pagesInUse - bi->softDeletions) < pagesInUse &&
+-				yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
+-			dirtiest = b;
+-			pagesInUse = (bi->pagesInUse - bi->softDeletions);
+-		}
+-	}
+-
+-	dev->currentDirtyChecker = b;
+-
+-	if (dirtiest > 0) {
+-		T(YAFFS_TRACE_GC,
+-		  (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest,
+-		   dev->nChunksPerBlock - pagesInUse, prioritised));
+-	}
+-
+-	dev->oldestDirtySequence = 0;
+-
+-	if (dirtiest > 0)
+-		dev->nonAggressiveSkip = 4;
+-
+-	return dirtiest;
+-}
+-
+-static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo)
+-{
+-	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo);
+-
+-	int erasedOk = 0;
+-
+-	/* If the block is still healthy erase it and mark as clean.
+-	 * If the block has had a data failure, then retire it.
+-	 */
+-
+-	T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE,
+-		(TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR),
+-		blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : ""));
+-
+-	bi->blockState = YAFFS_BLOCK_STATE_DIRTY;
+-
+-	if (!bi->needsRetiring) {
+-		yaffs_InvalidateCheckpoint(dev);
+-		erasedOk = yaffs_EraseBlockInNAND(dev, blockNo);
+-		if (!erasedOk) {
+-			dev->nErasureFailures++;
+-			T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
+-			  (TSTR("**>> Erasure failed %d" TENDSTR), blockNo));
+-		}
+-	}
+-
+-	if (erasedOk &&
+-	    ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) {
+-		int i;
+-		for (i = 0; i < dev->nChunksPerBlock; i++) {
+-			if (!yaffs_CheckChunkErased
+-			    (dev, blockNo * dev->nChunksPerBlock + i)) {
+-				T(YAFFS_TRACE_ERROR,
+-				  (TSTR
+-				   (">>Block %d erasure supposedly OK, but chunk %d not erased"
+-				    TENDSTR), blockNo, i));
+-			}
+-		}
+-	}
+-
+-	if (erasedOk) {
+-		/* Clean it up... */
+-		bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
+-		dev->nErasedBlocks++;
+-		bi->pagesInUse = 0;
+-		bi->softDeletions = 0;
+-		bi->hasShrinkHeader = 0;
+-		bi->skipErasedCheck = 1;  /* This is clean, so no need to check */
+-		bi->gcPrioritise = 0;
+-		yaffs_ClearChunkBits(dev, blockNo);
+-
+-		T(YAFFS_TRACE_ERASE,
+-		  (TSTR("Erased block %d" TENDSTR), blockNo));
+-	} else {
+-		dev->nFreeChunks -= dev->nChunksPerBlock;	/* We lost a block of free space */
+-
+-		yaffs_RetireBlock(dev, blockNo);
+-		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
+-		  (TSTR("**>> Block %d retired" TENDSTR), blockNo));
+-	}
+-}
+-
+-static int yaffs_FindBlockForAllocation(yaffs_Device *dev)
+-{
+-	int i;
+-
+-	yaffs_BlockInfo *bi;
+-
+-	if (dev->nErasedBlocks < 1) {
+-		/* Hoosterman we've got a problem.
+-		 * Can't get space to gc
+-		 */
+-		T(YAFFS_TRACE_ERROR,
+-		  (TSTR("yaffs tragedy: no more erased blocks" TENDSTR)));
+-
+-		return -1;
+-	}
+-
+-	/* Find an empty block. */
+-
+-	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
+-		dev->allocationBlockFinder++;
+-		if (dev->allocationBlockFinder < dev->internalStartBlock
+-		    || dev->allocationBlockFinder > dev->internalEndBlock) {
+-			dev->allocationBlockFinder = dev->internalStartBlock;
+-		}
+-
+-		bi = yaffs_GetBlockInfo(dev, dev->allocationBlockFinder);
+-
+-		if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) {
+-			bi->blockState = YAFFS_BLOCK_STATE_ALLOCATING;
+-			dev->sequenceNumber++;
+-			bi->sequenceNumber = dev->sequenceNumber;
+-			dev->nErasedBlocks--;
+-			T(YAFFS_TRACE_ALLOCATE,
+-			  (TSTR("Allocated block %d, seq  %d, %d left" TENDSTR),
+-			   dev->allocationBlockFinder, dev->sequenceNumber,
+-			   dev->nErasedBlocks));
+-			return dev->allocationBlockFinder;
+-		}
+-	}
+-
+-	T(YAFFS_TRACE_ALWAYS,
+-	  (TSTR
+-	   ("yaffs tragedy: no more erased blocks, but there should have been %d"
+-	    TENDSTR), dev->nErasedBlocks));
+-
+-	return -1;
+-}
+-
+-
+-
+-static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev)
+-{
+-	if (!dev->nCheckpointBlocksRequired &&
+-	   dev->isYaffs2) {
+-		/* Not a valid value so recalculate */
+-		int nBytes = 0;
+-		int nBlocks;
+-		int devBlocks = (dev->endBlock - dev->startBlock + 1);
+-		int tnodeSize;
+-
+-		tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
+-
+-		if (tnodeSize < sizeof(yaffs_Tnode))
+-			tnodeSize = sizeof(yaffs_Tnode);
+-
+-		nBytes += sizeof(yaffs_CheckpointValidity);
+-		nBytes += sizeof(yaffs_CheckpointDevice);
+-		nBytes += devBlocks * sizeof(yaffs_BlockInfo);
+-		nBytes += devBlocks * dev->chunkBitmapStride;
+-		nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects);
+-		nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes);
+-		nBytes += sizeof(yaffs_CheckpointValidity);
+-		nBytes += sizeof(__u32); /* checksum*/
+-
+-		/* Round up and add 2 blocks to allow for some bad blocks, so add 3 */
+-
+-		nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3;
+-
+-		dev->nCheckpointBlocksRequired = nBlocks;
+-	}
+-
+-	return dev->nCheckpointBlocksRequired;
+-}
+-
+-/*
+- * Check if there's space to allocate...
+- * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()?
+- */
+-static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev)
+-{
+-	int reservedChunks;
+-	int reservedBlocks = dev->nReservedBlocks;
+-	int checkpointBlocks;
+-
+-	if (dev->isYaffs2) {
+-		checkpointBlocks =  yaffs_CalcCheckpointBlocksRequired(dev) -
+-				    dev->blocksInCheckpoint;
+-		if (checkpointBlocks < 0)
+-			checkpointBlocks = 0;
+-	} else {
+-		checkpointBlocks = 0;
+-	}
+-
+-	reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock);
+-
+-	return (dev->nFreeChunks > reservedChunks);
+-}
+-
+-static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve,
+-		yaffs_BlockInfo **blockUsedPtr)
+-{
+-	int retVal;
+-	yaffs_BlockInfo *bi;
+-
+-	if (dev->allocationBlock < 0) {
+-		/* Get next block to allocate off */
+-		dev->allocationBlock = yaffs_FindBlockForAllocation(dev);
+-		dev->allocationPage = 0;
+-	}
+-
+-	if (!useReserve && !yaffs_CheckSpaceForAllocation(dev)) {
+-		/* Not enough space to allocate unless we're allowed to use the reserve. */
+-		return -1;
+-	}
+-
+-	if (dev->nErasedBlocks < dev->nReservedBlocks
+-			&& dev->allocationPage == 0) {
+-		T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR)));
+-	}
+-
+-	/* Next page please.... */
+-	if (dev->allocationBlock >= 0) {
+-		bi = yaffs_GetBlockInfo(dev, dev->allocationBlock);
+-
+-		retVal = (dev->allocationBlock * dev->nChunksPerBlock) +
+-			dev->allocationPage;
+-		bi->pagesInUse++;
+-		yaffs_SetChunkBit(dev, dev->allocationBlock,
+-				dev->allocationPage);
+-
+-		dev->allocationPage++;
+-
+-		dev->nFreeChunks--;
+-
+-		/* If the block is full set the state to full */
+-		if (dev->allocationPage >= dev->nChunksPerBlock) {
+-			bi->blockState = YAFFS_BLOCK_STATE_FULL;
+-			dev->allocationBlock = -1;
+-		}
+-
+-		if (blockUsedPtr)
+-			*blockUsedPtr = bi;
+-
+-		return retVal;
+-	}
+-
+-	T(YAFFS_TRACE_ERROR,
+-			(TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
+-
+-	return -1;
+-}
+-
+-static int yaffs_GetErasedChunks(yaffs_Device *dev)
+-{
+-	int n;
+-
+-	n = dev->nErasedBlocks * dev->nChunksPerBlock;
+-
+-	if (dev->allocationBlock > 0)
+-		n += (dev->nChunksPerBlock - dev->allocationPage);
+-
+-	return n;
+-
+-}
+-
+-static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block,
+-		int wholeBlock)
+-{
+-	int oldChunk;
+-	int newChunk;
+-	int markNAND;
+-	int retVal = YAFFS_OK;
+-	int cleanups = 0;
+-	int i;
+-	int isCheckpointBlock;
+-	int matchingChunk;
+-	int maxCopies;
+-
+-	int chunksBefore = yaffs_GetErasedChunks(dev);
+-	int chunksAfter;
+-
+-	yaffs_ExtendedTags tags;
+-
+-	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, block);
+-
+-	yaffs_Object *object;
+-
+-	isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT);
+-
+-	bi->blockState = YAFFS_BLOCK_STATE_COLLECTING;
+-
+-	T(YAFFS_TRACE_TRACING,
+-			(TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR),
+-			 block,
+-			 bi->pagesInUse,
+-			 bi->hasShrinkHeader,
+-			 wholeBlock));
+-
+-	/*yaffs_VerifyFreeChunks(dev); */
+-
+-	bi->hasShrinkHeader = 0;	/* clear the flag so that the block can erase */
+-
+-	/* Take off the number of soft deleted entries because
+-	 * they're going to get really deleted during GC.
+-	 */
+-	dev->nFreeChunks -= bi->softDeletions;
+-
+-	dev->isDoingGC = 1;
+-
+-	if (isCheckpointBlock ||
+-			!yaffs_StillSomeChunkBits(dev, block)) {
+-		T(YAFFS_TRACE_TRACING,
+-				(TSTR
+-				 ("Collecting block %d that has no chunks in use" TENDSTR),
+-				 block));
+-		yaffs_BlockBecameDirty(dev, block);
+-	} else {
+-
+-		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
+-
+-		yaffs_VerifyBlock(dev, bi, block);
+-
+-		maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10;
+-		oldChunk = block * dev->nChunksPerBlock + dev->gcChunk;
+-
+-		for (/* init already done */;
+-		     retVal == YAFFS_OK &&
+-		     dev->gcChunk < dev->nChunksPerBlock &&
+-		     (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) &&
+-		     maxCopies > 0;
+-		     dev->gcChunk++, oldChunk++) {
+-			if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) {
+-
+-				/* This page is in use and might need to be copied off */
+-
+-				maxCopies--;
+-
+-				markNAND = 1;
+-
+-				yaffs_InitialiseTags(&tags);
+-
+-				yaffs_ReadChunkWithTagsFromNAND(dev, oldChunk,
+-								buffer, &tags);
+-
+-				object =
+-				    yaffs_FindObjectByNumber(dev,
+-							     tags.objectId);
+-
+-				T(YAFFS_TRACE_GC_DETAIL,
+-				  (TSTR
+-				   ("Collecting chunk in block %d, %d %d %d " TENDSTR),
+-				   dev->gcChunk, tags.objectId, tags.chunkId,
+-				   tags.byteCount));
+-
+-				if (object && !yaffs_SkipVerification(dev)) {
+-					if (tags.chunkId == 0)
+-						matchingChunk = object->hdrChunk;
+-					else if (object->softDeleted)
+-						matchingChunk = oldChunk; /* Defeat the test */
+-					else
+-						matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL);
+-
+-					if (oldChunk != matchingChunk)
+-						T(YAFFS_TRACE_ERROR,
+-						  (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR),
+-						  oldChunk, matchingChunk, tags.objectId, tags.chunkId));
+-
+-				}
+-
+-				if (!object) {
+-					T(YAFFS_TRACE_ERROR,
+-					  (TSTR
+-					   ("page %d in gc has no object: %d %d %d "
+-					    TENDSTR), oldChunk,
+-					    tags.objectId, tags.chunkId, tags.byteCount));
+-				}
+-
+-				if (object &&
+-				    object->deleted &&
+-				    object->softDeleted &&
+-				    tags.chunkId != 0) {
+-					/* Data chunk in a soft deleted file, throw it away
+-					 * It's a soft deleted data chunk,
+-					 * No need to copy this, just forget about it and
+-					 * fix up the object.
+-					 */
+-
+-					object->nDataChunks--;
+-
+-					if (object->nDataChunks <= 0) {
+-						/* remeber to clean up the object */
+-						dev->gcCleanupList[cleanups] =
+-						    tags.objectId;
+-						cleanups++;
+-					}
+-					markNAND = 0;
+-				} else if (0) {
+-					/* Todo object && object->deleted && object->nDataChunks == 0 */
+-					/* Deleted object header with no data chunks.
+-					 * Can be discarded and the file deleted.
+-					 */
+-					object->hdrChunk = 0;
+-					yaffs_FreeTnode(object->myDev,
+-							object->variant.
+-							fileVariant.top);
+-					object->variant.fileVariant.top = NULL;
+-					yaffs_DoGenericObjectDeletion(object);
+-
+-				} else if (object) {
+-					/* It's either a data chunk in a live file or
+-					 * an ObjectHeader, so we're interested in it.
+-					 * NB Need to keep the ObjectHeaders of deleted files
+-					 * until the whole file has been deleted off
+-					 */
+-					tags.serialNumber++;
+-
+-					dev->nGCCopies++;
+-
+-					if (tags.chunkId == 0) {
+-						/* It is an object Id,
+-						 * We need to nuke the shrinkheader flags first
+-						 * We no longer want the shrinkHeader flag since its work is done
+-						 * and if it is left in place it will mess up scanning.
+-						 */
+-
+-						yaffs_ObjectHeader *oh;
+-						oh = (yaffs_ObjectHeader *)buffer;
+-						oh->isShrink = 0;
+-						tags.extraIsShrinkHeader = 0;
+-
+-						yaffs_VerifyObjectHeader(object, oh, &tags, 1);
+-					}
+-
+-					newChunk =
+-					    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &tags, 1);
+-
+-					if (newChunk < 0) {
+-						retVal = YAFFS_FAIL;
+-					} else {
+-
+-						/* Ok, now fix up the Tnodes etc. */
+-
+-						if (tags.chunkId == 0) {
+-							/* It's a header */
+-							object->hdrChunk =  newChunk;
+-							object->serial =   tags.serialNumber;
+-						} else {
+-							/* It's a data chunk */
+-							yaffs_PutChunkIntoFile
+-							    (object,
+-							     tags.chunkId,
+-							     newChunk, 0);
+-						}
+-					}
+-				}
+-
+-				if (retVal == YAFFS_OK)
+-					yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
+-
+-			}
+-		}
+-
+-		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
+-
+-
+-		/* Do any required cleanups */
+-		for (i = 0; i < cleanups; i++) {
+-			/* Time to delete the file too */
+-			object =
+-			    yaffs_FindObjectByNumber(dev,
+-						     dev->gcCleanupList[i]);
+-			if (object) {
+-				yaffs_FreeTnode(dev,
+-						object->variant.fileVariant.
+-						top);
+-				object->variant.fileVariant.top = NULL;
+-				T(YAFFS_TRACE_GC,
+-				  (TSTR
+-				   ("yaffs: About to finally delete object %d"
+-				    TENDSTR), object->objectId));
+-				yaffs_DoGenericObjectDeletion(object);
+-				object->myDev->nDeletedFiles--;
+-			}
+-
+-		}
+-
+-	}
+-
+-	yaffs_VerifyCollectedBlock(dev, bi, block);
+-
+-	chunksAfter = yaffs_GetErasedChunks(dev);
+-	if (chunksBefore >= chunksAfter) {
+-		T(YAFFS_TRACE_GC,
+-		  (TSTR
+-		   ("gc did not increase free chunks before %d after %d"
+-		    TENDSTR), chunksBefore, chunksAfter));
+-	}
+-
+-	/* If the gc completed then clear the current gcBlock so that we find another. */
+-	if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) {
+-		dev->gcBlock = -1;
+-		dev->gcChunk = 0;
+-	}
+-
+-	dev->isDoingGC = 0;
+-
+-	return retVal;
+-}
+-
+-/* New garbage collector
+- * If we're very low on erased blocks then we do aggressive garbage collection
+- * otherwise we do "leasurely" garbage collection.
+- * Aggressive gc looks further (whole array) and will accept less dirty blocks.
+- * Passive gc only inspects smaller areas and will only accept more dirty blocks.
+- *
+- * The idea is to help clear out space in a more spread-out manner.
+- * Dunno if it really does anything useful.
+- */
+-static int yaffs_CheckGarbageCollection(yaffs_Device *dev)
+-{
+-	int block;
+-	int aggressive;
+-	int gcOk = YAFFS_OK;
+-	int maxTries = 0;
+-
+-	int checkpointBlockAdjust;
+-
+-	if (dev->isDoingGC) {
+-		/* Bail out so we don't get recursive gc */
+-		return YAFFS_OK;
+-	}
+-
+-	/* This loop should pass the first time.
+-	 * We'll only see looping here if the erase of the collected block fails.
+-	 */
+-
+-	do {
+-		maxTries++;
+-
+-		checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
+-		if (checkpointBlockAdjust < 0)
+-			checkpointBlockAdjust = 0;
+-
+-		if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) {
+-			/* We need a block soon...*/
+-			aggressive = 1;
+-		} else {
+-			/* We're in no hurry */
+-			aggressive = 0;
+-		}
+-
+-		if (dev->gcBlock <= 0) {
+-			dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive);
+-			dev->gcChunk = 0;
+-		}
+-
+-		block = dev->gcBlock;
+-
+-		if (block > 0) {
+-			dev->garbageCollections++;
+-			if (!aggressive)
+-				dev->passiveGarbageCollections++;
+-
+-			T(YAFFS_TRACE_GC,
+-			  (TSTR
+-			   ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR),
+-			   dev->nErasedBlocks, aggressive));
+-
+-			gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive);
+-		}
+-
+-		if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) {
+-			T(YAFFS_TRACE_GC,
+-			  (TSTR
+-			   ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d"
+-			    TENDSTR), dev->nErasedBlocks, maxTries, block));
+-		}
+-	} while ((dev->nErasedBlocks < dev->nReservedBlocks) &&
+-		 (block > 0) &&
+-		 (maxTries < 2));
+-
+-	return aggressive ? gcOk : YAFFS_OK;
+-}
+-
+-/*-------------------------  TAGS --------------------------------*/
+-
+-static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId,
+-			   int chunkInObject)
+-{
+-	return (tags->chunkId == chunkInObject &&
+-		tags->objectId == objectId && !tags->chunkDeleted) ? 1 : 0;
+-
+-}
+-
+-
+-/*-------------------- Data file manipulation -----------------*/
+-
+-static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode,
+-				 yaffs_ExtendedTags *tags)
+-{
+-	/*Get the Tnode, then get the level 0 offset chunk offset */
+-	yaffs_Tnode *tn;
+-	int theChunk = -1;
+-	yaffs_ExtendedTags localTags;
+-	int retVal = -1;
+-
+-	yaffs_Device *dev = in->myDev;
+-
+-	if (!tags) {
+-		/* Passed a NULL, so use our own tags space */
+-		tags = &localTags;
+-	}
+-
+-	tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
+-
+-	if (tn) {
+-		theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
+-
+-		retVal =
+-		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
+-					   chunkInInode);
+-	}
+-	return retVal;
+-}
+-
+-static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode,
+-					  yaffs_ExtendedTags *tags)
+-{
+-	/* Get the Tnode, then get the level 0 offset chunk offset */
+-	yaffs_Tnode *tn;
+-	int theChunk = -1;
+-	yaffs_ExtendedTags localTags;
+-
+-	yaffs_Device *dev = in->myDev;
+-	int retVal = -1;
+-
+-	if (!tags) {
+-		/* Passed a NULL, so use our own tags space */
+-		tags = &localTags;
+-	}
+-
+-	tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
+-
+-	if (tn) {
+-
+-		theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
+-
+-		retVal =
+-		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
+-					   chunkInInode);
+-
+-		/* Delete the entry in the filestructure (if found) */
+-		if (retVal != -1)
+-			yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0);
+-	}
+-
+-	return retVal;
+-}
+-
+-#ifdef YAFFS_PARANOID
+-
+-static int yaffs_CheckFileSanity(yaffs_Object *in)
+-{
+-	int chunk;
+-	int nChunks;
+-	int fSize;
+-	int failed = 0;
+-	int objId;
+-	yaffs_Tnode *tn;
+-	yaffs_Tags localTags;
+-	yaffs_Tags *tags = &localTags;
+-	int theChunk;
+-	int chunkDeleted;
+-
+-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE)
+-		return YAFFS_FAIL;
+-
+-	objId = in->objectId;
+-	fSize = in->variant.fileVariant.fileSize;
+-	nChunks =
+-	    (fSize + in->myDev->nDataBytesPerChunk - 1) / in->myDev->nDataBytesPerChunk;
+-
+-	for (chunk = 1; chunk <= nChunks; chunk++) {
+-		tn = yaffs_FindLevel0Tnode(in->myDev, &in->variant.fileVariant,
+-					   chunk);
+-
+-		if (tn) {
+-
+-			theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk);
+-
+-			if (yaffs_CheckChunkBits
+-			    (dev, theChunk / dev->nChunksPerBlock,
+-			     theChunk % dev->nChunksPerBlock)) {
+-
+-				yaffs_ReadChunkTagsFromNAND(in->myDev, theChunk,
+-							    tags,
+-							    &chunkDeleted);
+-				if (yaffs_TagsMatch
+-				    (tags, in->objectId, chunk, chunkDeleted)) {
+-					/* found it; */
+-
+-				}
+-			} else {
+-
+-				failed = 1;
+-			}
+-
+-		} else {
+-			/* T(("No level 0 found for %d\n", chunk)); */
+-		}
+-	}
+-
+-	return failed ? YAFFS_FAIL : YAFFS_OK;
+-}
+-
+-#endif
+-
+-static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode,
+-				  int chunkInNAND, int inScan)
+-{
+-	/* NB inScan is zero unless scanning.
+-	 * For forward scanning, inScan is > 0;
+-	 * for backward scanning inScan is < 0
+-	 */
+-
+-	yaffs_Tnode *tn;
+-	yaffs_Device *dev = in->myDev;
+-	int existingChunk;
+-	yaffs_ExtendedTags existingTags;
+-	yaffs_ExtendedTags newTags;
+-	unsigned existingSerial, newSerial;
+-
+-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
+-		/* Just ignore an attempt at putting a chunk into a non-file during scanning
+-		 * If it is not during Scanning then something went wrong!
+-		 */
+-		if (!inScan) {
+-			T(YAFFS_TRACE_ERROR,
+-			  (TSTR
+-			   ("yaffs tragedy:attempt to put data chunk into a non-file"
+-			    TENDSTR)));
+-			YBUG();
+-		}
+-
+-		yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
+-		return YAFFS_OK;
+-	}
+-
+-	tn = yaffs_AddOrFindLevel0Tnode(dev,
+-					&in->variant.fileVariant,
+-					chunkInInode,
+-					NULL);
+-	if (!tn)
+-		return YAFFS_FAIL;
+-
+-	existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode);
+-
+-	if (inScan != 0) {
+-		/* If we're scanning then we need to test for duplicates
+-		 * NB This does not need to be efficient since it should only ever
+-		 * happen when the power fails during a write, then only one
+-		 * chunk should ever be affected.
+-		 *
+-		 * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO
+-		 * Update: For backward scanning we don't need to re-read tags so this is quite cheap.
+-		 */
+-
+-		if (existingChunk > 0) {
+-			/* NB Right now existing chunk will not be real chunkId if the device >= 32MB
+-			 *    thus we have to do a FindChunkInFile to get the real chunk id.
+-			 *
+-			 * We have a duplicate now we need to decide which one to use:
+-			 *
+-			 * Backwards scanning YAFFS2: The old one is what we use, dump the new one.
+-			 * Forward scanning YAFFS2: The new one is what we use, dump the old one.
+-			 * YAFFS1: Get both sets of tags and compare serial numbers.
+-			 */
+-
+-			if (inScan > 0) {
+-				/* Only do this for forward scanning */
+-				yaffs_ReadChunkWithTagsFromNAND(dev,
+-								chunkInNAND,
+-								NULL, &newTags);
+-
+-				/* Do a proper find */
+-				existingChunk =
+-				    yaffs_FindChunkInFile(in, chunkInInode,
+-							  &existingTags);
+-			}
+-
+-			if (existingChunk <= 0) {
+-				/*Hoosterman - how did this happen? */
+-
+-				T(YAFFS_TRACE_ERROR,
+-				  (TSTR
+-				   ("yaffs tragedy: existing chunk < 0 in scan"
+-				    TENDSTR)));
+-
+-			}
+-
+-			/* NB The deleted flags should be false, otherwise the chunks will
+-			 * not be loaded during a scan
+-			 */
+-
+-			if (inScan > 0) {
+-				newSerial = newTags.serialNumber;
+-				existingSerial = existingTags.serialNumber;
+-			}
+-
+-			if ((inScan > 0) &&
+-			    (in->myDev->isYaffs2 ||
+-			     existingChunk <= 0 ||
+-			     ((existingSerial + 1) & 3) == newSerial)) {
+-				/* Forward scanning.
+-				 * Use new
+-				 * Delete the old one and drop through to update the tnode
+-				 */
+-				yaffs_DeleteChunk(dev, existingChunk, 1,
+-						  __LINE__);
+-			} else {
+-				/* Backward scanning or we want to use the existing one
+-				 * Use existing.
+-				 * Delete the new one and return early so that the tnode isn't changed
+-				 */
+-				yaffs_DeleteChunk(dev, chunkInNAND, 1,
+-						  __LINE__);
+-				return YAFFS_OK;
+-			}
+-		}
+-
+-	}
+-
+-	if (existingChunk == 0)
+-		in->nDataChunks++;
+-
+-	yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND);
+-
+-	return YAFFS_OK;
+-}
+-
+-static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode,
+-					__u8 *buffer)
+-{
+-	int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL);
+-
+-	if (chunkInNAND >= 0)
+-		return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND,
+-						buffer, NULL);
+-	else {
+-		T(YAFFS_TRACE_NANDACCESS,
+-		  (TSTR("Chunk %d not found zero instead" TENDSTR),
+-		   chunkInNAND));
+-		/* get sane (zero) data if you read a hole */
+-		memset(buffer, 0, in->myDev->nDataBytesPerChunk);
+-		return 0;
+-	}
+-
+-}
+-
+-void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn)
+-{
+-	int block;
+-	int page;
+-	yaffs_ExtendedTags tags;
+-	yaffs_BlockInfo *bi;
+-
+-	if (chunkId <= 0)
+-		return;
+-
+-	dev->nDeletions++;
+-	block = chunkId / dev->nChunksPerBlock;
+-	page = chunkId % dev->nChunksPerBlock;
+-
+-
+-	if (!yaffs_CheckChunkBit(dev, block, page))
+-		T(YAFFS_TRACE_VERIFY,
+-			(TSTR("Deleting invalid chunk %d"TENDSTR),
+-			 chunkId));
+-
+-	bi = yaffs_GetBlockInfo(dev, block);
+-
+-	T(YAFFS_TRACE_DELETION,
+-	  (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunkId));
+-
+-	if (markNAND &&
+-	    bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && !dev->isYaffs2) {
+-
+-		yaffs_InitialiseTags(&tags);
+-
+-		tags.chunkDeleted = 1;
+-
+-		yaffs_WriteChunkWithTagsToNAND(dev, chunkId, NULL, &tags);
+-		yaffs_HandleUpdateChunk(dev, chunkId, &tags);
+-	} else {
+-		dev->nUnmarkedDeletions++;
+-	}
+-
+-	/* Pull out of the management area.
+-	 * If the whole block became dirty, this will kick off an erasure.
+-	 */
+-	if (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING ||
+-	    bi->blockState == YAFFS_BLOCK_STATE_FULL ||
+-	    bi->blockState == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
+-	    bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) {
+-		dev->nFreeChunks++;
+-
+-		yaffs_ClearChunkBit(dev, block, page);
+-
+-		bi->pagesInUse--;
+-
+-		if (bi->pagesInUse == 0 &&
+-		    !bi->hasShrinkHeader &&
+-		    bi->blockState != YAFFS_BLOCK_STATE_ALLOCATING &&
+-		    bi->blockState != YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
+-			yaffs_BlockBecameDirty(dev, block);
+-		}
+-
+-	}
+-
+-}
+-
+-static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode,
+-					const __u8 *buffer, int nBytes,
+-					int useReserve)
+-{
+-	/* Find old chunk Need to do this to get serial number
+-	 * Write new one and patch into tree.
+-	 * Invalidate old tags.
+-	 */
+-
+-	int prevChunkId;
+-	yaffs_ExtendedTags prevTags;
+-
+-	int newChunkId;
+-	yaffs_ExtendedTags newTags;
+-
+-	yaffs_Device *dev = in->myDev;
+-
+-	yaffs_CheckGarbageCollection(dev);
+-
+-	/* Get the previous chunk at this location in the file if it exists */
+-	prevChunkId = yaffs_FindChunkInFile(in, chunkInInode, &prevTags);
+-
+-	/* Set up new tags */
+-	yaffs_InitialiseTags(&newTags);
+-
+-	newTags.chunkId = chunkInInode;
+-	newTags.objectId = in->objectId;
+-	newTags.serialNumber =
+-	    (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1;
+-	newTags.byteCount = nBytes;
+-
+-	if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) {
+-		T(YAFFS_TRACE_ERROR,
+-		(TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes));
+-		YBUG();
+-	}
+-
+-	newChunkId =
+-	    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
+-					      useReserve);
+-
+-	if (newChunkId >= 0) {
+-		yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0);
+-
+-		if (prevChunkId >= 0)
+-			yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__);
+-
+-		yaffs_CheckFileSanity(in);
+-	}
+-	return newChunkId;
+-
+-}
+-
+-/* UpdateObjectHeader updates the header on NAND for an object.
+- * If name is not NULL, then that new name is used.
+- */
+-int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force,
+-			     int isShrink, int shadows)
+-{
+-
+-	yaffs_BlockInfo *bi;
+-
+-	yaffs_Device *dev = in->myDev;
+-
+-	int prevChunkId;
+-	int retVal = 0;
+-	int result = 0;
+-
+-	int newChunkId;
+-	yaffs_ExtendedTags newTags;
+-	yaffs_ExtendedTags oldTags;
+-
+-	__u8 *buffer = NULL;
+-	YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1];
+-
+-	yaffs_ObjectHeader *oh = NULL;
++	yaffs_obj_t *in;
++	YCHAR *str = NULL;
+ 
+-	yaffs_strcpy(oldName, _Y("silly old name"));
++	yaffs_dev_t *dev = parent->my_dev;
+ 
++	/* Check if the entry exists. If it does then fail the call since we don't want a dup.*/
++	if (yaffs_find_by_name(parent, name))
++		return NULL;
+ 
+-	if (!in->fake ||
+-		in == dev->rootDir || /* The rootDir should also be saved */
+-		force) {
++	if (type == YAFFS_OBJECT_TYPE_SYMLINK) {
++		str = yaffs_clone_str(aliasString);
++		if (!str)
++			return NULL;
++	}
+ 
+-		yaffs_CheckGarbageCollection(dev);
+-		yaffs_CheckObjectDetailsLoaded(in);
++	in = yaffs_new_obj(dev, -1, type);
+ 
+-		buffer = yaffs_GetTempBuffer(in->myDev, __LINE__);
+-		oh = (yaffs_ObjectHeader *) buffer;
++	if (!in){
++		if(str)
++			YFREE(str);
++		return NULL;
++	}
+ 
+-		prevChunkId = in->hdrChunk;
+ 
+-		if (prevChunkId > 0) {
+-			result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId,
+-							buffer, &oldTags);
+ 
+-			yaffs_VerifyObjectHeader(in, oh, &oldTags, 0);
+ 
+-			memcpy(oldName, oh->name, sizeof(oh->name));
+-		}
+ 
+-		memset(buffer, 0xFF, dev->nDataBytesPerChunk);
++	if (in) {
++		in->hdr_chunk = 0;
++		in->valid = 1;
++		in->variant_type = type;
+ 
+-		oh->type = in->variantType;
+-		oh->yst_mode = in->yst_mode;
+-		oh->shadowsObject = oh->inbandShadowsObject = shadows;
++		in->yst_mode = mode;
+ 
+ #ifdef CONFIG_YAFFS_WINCE
+-		oh->win_atime[0] = in->win_atime[0];
+-		oh->win_ctime[0] = in->win_ctime[0];
+-		oh->win_mtime[0] = in->win_mtime[0];
+-		oh->win_atime[1] = in->win_atime[1];
+-		oh->win_ctime[1] = in->win_ctime[1];
+-		oh->win_mtime[1] = in->win_mtime[1];
++		yfsd_win_file_time_now(in->win_atime);
++		in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0];
++		in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1];
++
+ #else
+-		oh->yst_uid = in->yst_uid;
+-		oh->yst_gid = in->yst_gid;
+-		oh->yst_atime = in->yst_atime;
+-		oh->yst_mtime = in->yst_mtime;
+-		oh->yst_ctime = in->yst_ctime;
+-		oh->yst_rdev = in->yst_rdev;
++		in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME;
++
++		in->yst_rdev = rdev;
++		in->yst_uid = uid;
++		in->yst_gid = gid;
+ #endif
+-		if (in->parent)
+-			oh->parentObjectId = in->parent->objectId;
+-		else
+-			oh->parentObjectId = 0;
++		in->n_data_chunks = 0;
+ 
+-		if (name && *name) {
+-			memset(oh->name, 0, sizeof(oh->name));
+-			yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH);
+-		} else if (prevChunkId >= 0)
+-			memcpy(oh->name, oldName, sizeof(oh->name));
+-		else
+-			memset(oh->name, 0, sizeof(oh->name));
++		yaffs_set_obj_name(in, name);
++		in->dirty = 1;
+ 
+-		oh->isShrink = isShrink;
++		yaffs_add_obj_to_dir(parent, in);
+ 
+-		switch (in->variantType) {
+-		case YAFFS_OBJECT_TYPE_UNKNOWN:
+-			/* Should not happen */
+-			break;
+-		case YAFFS_OBJECT_TYPE_FILE:
+-			oh->fileSize =
+-			    (oh->parentObjectId == YAFFS_OBJECTID_DELETED
+-			     || oh->parentObjectId ==
+-			     YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant.
+-			    fileVariant.fileSize;
++		in->my_dev = parent->my_dev;
++
++		switch (type) {
++		case YAFFS_OBJECT_TYPE_SYMLINK:
++			in->variant.symlink_variant.alias = str;
+ 			break;
+ 		case YAFFS_OBJECT_TYPE_HARDLINK:
+-			oh->equivalentObjectId =
+-			    in->variant.hardLinkVariant.equivalentObjectId;
+-			break;
+-		case YAFFS_OBJECT_TYPE_SPECIAL:
+-			/* Do nothing */
++			in->variant.hardlink_variant.equiv_obj =
++				equiv_obj;
++			in->variant.hardlink_variant.equiv_id =
++				equiv_obj->obj_id;
++			ylist_add(&in->hard_links, &equiv_obj->hard_links);
+ 			break;
++		case YAFFS_OBJECT_TYPE_FILE:
+ 		case YAFFS_OBJECT_TYPE_DIRECTORY:
+-			/* Do nothing */
+-			break;
+-		case YAFFS_OBJECT_TYPE_SYMLINK:
+-			yaffs_strncpy(oh->alias,
+-				      in->variant.symLinkVariant.alias,
+-				      YAFFS_MAX_ALIAS_LENGTH);
+-			oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0;
++		case YAFFS_OBJECT_TYPE_SPECIAL:
++		case YAFFS_OBJECT_TYPE_UNKNOWN:
++			/* do nothing */
+ 			break;
+ 		}
+ 
+-		/* Tags */
+-		yaffs_InitialiseTags(&newTags);
+-		in->serial++;
+-		newTags.chunkId = 0;
+-		newTags.objectId = in->objectId;
+-		newTags.serialNumber = in->serial;
+-
+-		/* Add extra info for file header */
+-
+-		newTags.extraHeaderInfoAvailable = 1;
+-		newTags.extraParentObjectId = oh->parentObjectId;
+-		newTags.extraFileLength = oh->fileSize;
+-		newTags.extraIsShrinkHeader = oh->isShrink;
+-		newTags.extraEquivalentObjectId = oh->equivalentObjectId;
+-		newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0;
+-		newTags.extraObjectType = in->variantType;
+-
+-		yaffs_VerifyObjectHeader(in, oh, &newTags, 1);
+-
+-		/* Create new chunk in NAND */
+-		newChunkId =
+-		    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
+-						      (prevChunkId >= 0) ? 1 : 0);
+-
+-		if (newChunkId >= 0) {
+-
+-			in->hdrChunk = newChunkId;
+-
+-			if (prevChunkId >= 0) {
+-				yaffs_DeleteChunk(dev, prevChunkId, 1,
+-						  __LINE__);
+-			}
+-
+-			if (!yaffs_ObjectHasCachedWriteData(in))
+-				in->dirty = 0;
+-
+-			/* If this was a shrink, then mark the block that the chunk lives on */
+-			if (isShrink) {
+-				bi = yaffs_GetBlockInfo(in->myDev,
+-					newChunkId / in->myDev->nChunksPerBlock);
+-				bi->hasShrinkHeader = 1;
+-			}
+-
++		if (yaffs_update_oh(in, name, 0, 0, 0, NULL) < 0) {
++			/* Could not create the object header, fail the creation */
++			yaffs_del_obj(in);
++			in = NULL;
+ 		}
+ 
+-		retVal = newChunkId;
+-
++		yaffs_update_parent(parent);
+ 	}
+ 
+-	if (buffer)
+-		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
+-
+-	return retVal;
++	return in;
+ }
+ 
+-/*------------------------ Short Operations Cache ----------------------------------------
+- *   In many situations where there is no high level buffering (eg WinCE) a lot of
+- *   reads might be short sequential reads, and a lot of writes may be short
+- *   sequential writes. eg. scanning/writing a jpeg file.
+- *   In these cases, a short read/write cache can provide a huge perfomance benefit
+- *   with dumb-as-a-rock code.
+- *   In Linux, the page cache provides read buffering aand the short op cache provides write
+- *   buffering.
+- *
+- *   There are a limited number (~10) of cache chunks per device so that we don't
+- *   need a very intelligent search.
+- */
+-
+-static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj)
++yaffs_obj_t *yaffs_create_file(yaffs_obj_t *parent, const YCHAR *name,
++			__u32 mode, __u32 uid, __u32 gid)
+ {
+-	yaffs_Device *dev = obj->myDev;
+-	int i;
+-	yaffs_ChunkCache *cache;
+-	int nCaches = obj->myDev->nShortOpCaches;
+-
+-	for (i = 0; i < nCaches; i++) {
+-		cache = &dev->srCache[i];
+-		if (cache->object == obj &&
+-		    cache->dirty)
+-			return 1;
+-	}
++	return yaffs_create_obj(YAFFS_OBJECT_TYPE_FILE, parent, name, mode,
++				uid, gid, NULL, NULL, 0);
++}
+ 
+-	return 0;
++yaffs_obj_t *yaffs_create_dir(yaffs_obj_t *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid)
++{
++	return yaffs_create_obj(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name,
++				 mode, uid, gid, NULL, NULL, 0);
+ }
+ 
++yaffs_obj_t *yaffs_create_special(yaffs_obj_t *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid, __u32 rdev)
++{
++	return yaffs_create_obj(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode,
++				 uid, gid, NULL, NULL, rdev);
++}
+ 
+-static void yaffs_FlushFilesChunkCache(yaffs_Object *obj)
++yaffs_obj_t *yaffs_create_symlink(yaffs_obj_t *parent, const YCHAR *name,
++				__u32 mode, __u32 uid, __u32 gid,
++				const YCHAR *alias)
+ {
+-	yaffs_Device *dev = obj->myDev;
+-	int lowest = -99;	/* Stop compiler whining. */
+-	int i;
+-	yaffs_ChunkCache *cache;
+-	int chunkWritten = 0;
+-	int nCaches = obj->myDev->nShortOpCaches;
++	return yaffs_create_obj(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode,
++				uid, gid, NULL, alias, 0);
++}
+ 
+-	if (nCaches > 0) {
+-		do {
+-			cache = NULL;
++/* yaffs_link_obj returns the object id of the equivalent object.*/
++yaffs_obj_t *yaffs_link_obj(yaffs_obj_t *parent, const YCHAR *name,
++			yaffs_obj_t *equiv_obj)
++{
++	/* Get the real object in case we were fed a hard link as an equivalent object */
++	equiv_obj = yaffs_get_equivalent_obj(equiv_obj);
+ 
+-			/* Find the dirty cache for this object with the lowest chunk id. */
+-			for (i = 0; i < nCaches; i++) {
+-				if (dev->srCache[i].object == obj &&
+-				    dev->srCache[i].dirty) {
+-					if (!cache
+-					    || dev->srCache[i].chunkId <
+-					    lowest) {
+-						cache = &dev->srCache[i];
+-						lowest = cache->chunkId;
+-					}
+-				}
+-			}
++	if (yaffs_create_obj
++	    (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0,
++	     equiv_obj, NULL, 0)) {
++		return equiv_obj;
++	} else {
++		return NULL;
++	}
+ 
+-			if (cache && !cache->locked) {
+-				/* Write it out and free it up */
++}
+ 
+-				chunkWritten =
+-				    yaffs_WriteChunkDataToObject(cache->object,
+-								 cache->chunkId,
+-								 cache->data,
+-								 cache->nBytes,
+-								 1);
+-				cache->dirty = 0;
+-				cache->object = NULL;
+-			}
++static int yaffs_change_obj_name(yaffs_obj_t *obj, yaffs_obj_t *new_dir,
++				const YCHAR *new_name, int force, int shadows)
++{
++	int unlinkOp;
++	int deleteOp;
+ 
+-		} while (cache && chunkWritten > 0);
++	yaffs_obj_t *existingTarget;
+ 
+-		if (cache) {
+-			/* Hoosterman, disk full while writing cache out. */
+-			T(YAFFS_TRACE_ERROR,
+-			  (TSTR("yaffs tragedy: no space during cache write" TENDSTR)));
++	if (new_dir == NULL)
++		new_dir = obj->parent;	/* use the old directory */
+ 
+-		}
++	if (new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
++		T(YAFFS_TRACE_ALWAYS,
++		  (TSTR
++		   ("tragedy: yaffs_change_obj_name: new_dir is not a directory"
++		    TENDSTR)));
++		YBUG();
+ 	}
+ 
+-}
++	/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
++	if (obj->my_dev->param.is_yaffs2)
++		unlinkOp = (new_dir == obj->my_dev->unlinked_dir);
++	else
++		unlinkOp = (new_dir == obj->my_dev->unlinked_dir
++			    && obj->variant_type == YAFFS_OBJECT_TYPE_FILE);
+ 
+-/*yaffs_FlushEntireDeviceCache(dev)
+- *
+- *
+- */
++	deleteOp = (new_dir == obj->my_dev->del_dir);
+ 
+-void yaffs_FlushEntireDeviceCache(yaffs_Device *dev)
+-{
+-	yaffs_Object *obj;
+-	int nCaches = dev->nShortOpCaches;
+-	int i;
++	existingTarget = yaffs_find_by_name(new_dir, new_name);
+ 
+-	/* Find a dirty object in the cache and flush it...
+-	 * until there are no further dirty objects.
++	/* If the object is a file going into the unlinked directory,
++	 *   then it is OK to just stuff it in since duplicate names are allowed.
++	 *   else only proceed if the new name does not exist and if we're putting
++	 *   it into a directory.
+ 	 */
+-	do {
+-		obj = NULL;
+-		for (i = 0; i < nCaches && !obj; i++) {
+-			if (dev->srCache[i].object &&
+-			    dev->srCache[i].dirty)
+-				obj = dev->srCache[i].object;
+-
+-		}
+-		if (obj)
+-			yaffs_FlushFilesChunkCache(obj);
+-
+-	} while (obj);
+-
+-}
++	if ((unlinkOp ||
++	     deleteOp ||
++	     force ||
++	     (shadows > 0) ||
++	     !existingTarget) &&
++	    new_dir->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) {
++		yaffs_set_obj_name(obj, new_name);
++		obj->dirty = 1;
+ 
++		yaffs_add_obj_to_dir(new_dir, obj);
+ 
+-/* Grab us a cache chunk for use.
+- * First look for an empty one.
+- * Then look for the least recently used non-dirty one.
+- * Then look for the least recently used dirty one...., flush and look again.
+- */
+-static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev)
+-{
+-	int i;
++		if (unlinkOp)
++			obj->unlinked = 1;
+ 
+-	if (dev->nShortOpCaches > 0) {
+-		for (i = 0; i < dev->nShortOpCaches; i++) {
+-			if (!dev->srCache[i].object)
+-				return &dev->srCache[i];
+-		}
++		/* If it is a deletion then we mark it as a shrink for gc purposes. */
++		if (yaffs_update_oh(obj, new_name, 0, deleteOp, shadows, NULL) >= 0)
++			return YAFFS_OK;
+ 	}
+ 
+-	return NULL;
++	return YAFFS_FAIL;
+ }
+ 
+-static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev)
++int yaffs_rename_obj(yaffs_obj_t *old_dir, const YCHAR *old_name,
++		yaffs_obj_t *new_dir, const YCHAR *new_name)
+ {
+-	yaffs_ChunkCache *cache;
+-	yaffs_Object *theObj;
+-	int usage;
+-	int i;
+-	int pushout;
+-
+-	if (dev->nShortOpCaches > 0) {
+-		/* Try find a non-dirty one... */
+-
+-		cache = yaffs_GrabChunkCacheWorker(dev);
++	yaffs_obj_t *obj = NULL;
++	yaffs_obj_t *existingTarget = NULL;
++	int force = 0;
++	int result;
++	yaffs_dev_t *dev;
+ 
+-		if (!cache) {
+-			/* They were all dirty, find the last recently used object and flush
+-			 * its cache, then  find again.
+-			 * NB what's here is not very accurate, we actually flush the object
+-			 * the last recently used page.
+-			 */
+ 
+-			/* With locking we can't assume we can use entry zero */
++	if (!old_dir || old_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY)
++		YBUG();
++	if (!new_dir || new_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY)
++		YBUG();
+ 
+-			theObj = NULL;
+-			usage = -1;
+-			cache = NULL;
+-			pushout = -1;
++	dev = old_dir->my_dev;
+ 
+-			for (i = 0; i < dev->nShortOpCaches; i++) {
+-				if (dev->srCache[i].object &&
+-				    !dev->srCache[i].locked &&
+-				    (dev->srCache[i].lastUse < usage || !cache)) {
+-					usage = dev->srCache[i].lastUse;
+-					theObj = dev->srCache[i].object;
+-					cache = &dev->srCache[i];
+-					pushout = i;
+-				}
+-			}
++#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
++	/* Special case for case insemsitive systems (eg. WinCE).
++	 * While look-up is case insensitive, the name isn't.
++	 * Therefore we might want to change x.txt to X.txt
++	*/
++	if (old_dir == new_dir && yaffs_strcmp(old_name, new_name) == 0)
++		force = 1;
++#endif
+ 
+-			if (!cache || cache->dirty) {
+-				/* Flush and try again */
+-				yaffs_FlushFilesChunkCache(theObj);
+-				cache = yaffs_GrabChunkCacheWorker(dev);
+-			}
++	if(yaffs_strnlen(new_name,YAFFS_MAX_NAME_LENGTH+1) > YAFFS_MAX_NAME_LENGTH)
++		/* ENAMETOOLONG */
++		return YAFFS_FAIL;
+ 
+-		}
+-		return cache;
+-	} else
+-		return NULL;
++	obj = yaffs_find_by_name(old_dir, old_name);
+ 
+-}
++	if (obj && obj->rename_allowed) {
+ 
+-/* Find a cached chunk */
+-static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj,
+-					      int chunkId)
+-{
+-	yaffs_Device *dev = obj->myDev;
+-	int i;
+-	if (dev->nShortOpCaches > 0) {
+-		for (i = 0; i < dev->nShortOpCaches; i++) {
+-			if (dev->srCache[i].object == obj &&
+-			    dev->srCache[i].chunkId == chunkId) {
+-				dev->cacheHits++;
++		/* Now do the handling for an existing target, if there is one */
+ 
+-				return &dev->srCache[i];
+-			}
++		existingTarget = yaffs_find_by_name(new_dir, new_name);
++		if (existingTarget &&
++			existingTarget->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY &&
++			!ylist_empty(&existingTarget->variant.dir_variant.children)) {
++			/* There is a target that is a non-empty directory, so we fail */
++			return YAFFS_FAIL;	/* EEXIST or ENOTEMPTY */
++		} else if (existingTarget && existingTarget != obj) {
++			/* Nuke the target first, using shadowing,
++			 * but only if it isn't the same object.
++			 *
++			 * Note we must disable gc otherwise it can mess up the shadowing.
++			 *
++			 */
++			dev->gc_disable=1;
++			yaffs_change_obj_name(obj, new_dir, new_name, force,
++						existingTarget->obj_id);
++			existingTarget->is_shadowed = 1;
++			yaffs_unlink_obj(existingTarget);
++			dev->gc_disable=0;
+ 		}
++
++		result = yaffs_change_obj_name(obj, new_dir, new_name, 1, 0);
++
++		yaffs_update_parent(old_dir);
++		if(new_dir != old_dir)
++			yaffs_update_parent(new_dir);
++		
++		return result;
+ 	}
+-	return NULL;
++	return YAFFS_FAIL;
+ }
+ 
+-/* Mark the chunk for the least recently used algorithym */
+-static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache,
+-				int isAWrite)
++/*------------------------- Block Management and Page Allocation ----------------*/
++
++static int yaffs_init_blocks(yaffs_dev_t *dev)
+ {
++	int nBlocks = dev->internal_end_block - dev->internal_start_block + 1;
+ 
+-	if (dev->nShortOpCaches > 0) {
+-		if (dev->srLastUse < 0 || dev->srLastUse > 100000000) {
+-			/* Reset the cache usages */
+-			int i;
+-			for (i = 1; i < dev->nShortOpCaches; i++)
+-				dev->srCache[i].lastUse = 0;
++	dev->block_info = NULL;
++	dev->chunk_bits = NULL;
+ 
+-			dev->srLastUse = 0;
+-		}
++	dev->alloc_block = -1;	/* force it to get a new one */
+ 
+-		dev->srLastUse++;
++	/* If the first allocation strategy fails, thry the alternate one */
++	dev->block_info = YMALLOC(nBlocks * sizeof(yaffs_block_info_t));
++	if (!dev->block_info) {
++		dev->block_info = YMALLOC_ALT(nBlocks * sizeof(yaffs_block_info_t));
++		dev->block_info_alt = 1;
++	} else
++		dev->block_info_alt = 0;
+ 
+-		cache->lastUse = dev->srLastUse;
++	if (dev->block_info) {
++		/* Set up dynamic blockinfo stuff. */
++		dev->chunk_bit_stride = (dev->param.chunks_per_block + 7) / 8; /* round up bytes */
++		dev->chunk_bits = YMALLOC(dev->chunk_bit_stride * nBlocks);
++		if (!dev->chunk_bits) {
++			dev->chunk_bits = YMALLOC_ALT(dev->chunk_bit_stride * nBlocks);
++			dev->chunk_bits_alt = 1;
++		} else
++			dev->chunk_bits_alt = 0;
++	}
+ 
+-		if (isAWrite)
+-			cache->dirty = 1;
++	if (dev->block_info && dev->chunk_bits) {
++		memset(dev->block_info, 0, nBlocks * sizeof(yaffs_block_info_t));
++		memset(dev->chunk_bits, 0, dev->chunk_bit_stride * nBlocks);
++		return YAFFS_OK;
+ 	}
++
++	return YAFFS_FAIL;
+ }
+ 
+-/* Invalidate a single cache page.
+- * Do this when a whole page gets written,
+- * ie the short cache for this page is no longer valid.
+- */
+-static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId)
++static void yaffs_deinit_blocks(yaffs_dev_t *dev)
+ {
+-	if (object->myDev->nShortOpCaches > 0) {
+-		yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId);
++	if (dev->block_info_alt && dev->block_info)
++		YFREE_ALT(dev->block_info);
++	else if (dev->block_info)
++		YFREE(dev->block_info);
+ 
+-		if (cache)
+-			cache->object = NULL;
+-	}
+-}
++	dev->block_info_alt = 0;
+ 
+-/* Invalidate all the cache pages associated with this object
+- * Do this whenever ther file is deleted or resized.
+- */
+-static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in)
+-{
+-	int i;
+-	yaffs_Device *dev = in->myDev;
++	dev->block_info = NULL;
+ 
+-	if (dev->nShortOpCaches > 0) {
+-		/* Invalidate it. */
+-		for (i = 0; i < dev->nShortOpCaches; i++) {
+-			if (dev->srCache[i].object == in)
+-				dev->srCache[i].object = NULL;
+-		}
+-	}
++	if (dev->chunk_bits_alt && dev->chunk_bits)
++		YFREE_ALT(dev->chunk_bits);
++	else if (dev->chunk_bits)
++		YFREE(dev->chunk_bits);
++	dev->chunk_bits_alt = 0;
++	dev->chunk_bits = NULL;
+ }
+ 
+-/*--------------------- Checkpointing --------------------*/
++void yaffs_block_became_dirty(yaffs_dev_t *dev, int block_no)
++{
++	yaffs_block_info_t *bi = yaffs_get_block_info(dev, block_no);
+ 
++	int erasedOk = 0;
+ 
+-static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head)
+-{
+-	yaffs_CheckpointValidity cp;
++	/* If the block is still healthy erase it and mark as clean.
++	 * If the block has had a data failure, then retire it.
++	 */
+ 
+-	memset(&cp, 0, sizeof(cp));
++	T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE,
++		(TSTR("yaffs_block_became_dirty block %d state %d %s"TENDSTR),
++		block_no, bi->block_state, (bi->needs_retiring) ? "needs retiring" : ""));
+ 
+-	cp.structType = sizeof(cp);
+-	cp.magic = YAFFS_MAGIC;
+-	cp.version = YAFFS_CHECKPOINT_VERSION;
+-	cp.head = (head) ? 1 : 0;
++	yaffs2_clear_oldest_dirty_seq(dev,bi);
+ 
+-	return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ?
+-		1 : 0;
+-}
++	bi->block_state = YAFFS_BLOCK_STATE_DIRTY;
+ 
+-static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head)
+-{
+-	yaffs_CheckpointValidity cp;
+-	int ok;
++	/* If this is the block being garbage collected then stop gc'ing this block */
++	if(block_no == dev->gc_block)
++		dev->gc_block = 0;
+ 
+-	ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
++	/* If this block is currently the best candidate for gc then drop as a candidate */
++	if(block_no == dev->gc_dirtiest){
++		dev->gc_dirtiest = 0;
++		dev->gc_pages_in_use = 0;
++	}
+ 
+-	if (ok)
+-		ok = (cp.structType == sizeof(cp)) &&
+-		     (cp.magic == YAFFS_MAGIC) &&
+-		     (cp.version == YAFFS_CHECKPOINT_VERSION) &&
+-		     (cp.head == ((head) ? 1 : 0));
+-	return ok ? 1 : 0;
+-}
++	if (!bi->needs_retiring) {
++		yaffs2_checkpt_invalidate(dev);
++		erasedOk = yaffs_erase_block(dev, block_no);
++		if (!erasedOk) {
++			dev->n_erase_failures++;
++			T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
++			  (TSTR("**>> Erasure failed %d" TENDSTR), block_no));
++		}
++	}
+ 
+-static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp,
+-					   yaffs_Device *dev)
+-{
+-	cp->nErasedBlocks = dev->nErasedBlocks;
+-	cp->allocationBlock = dev->allocationBlock;
+-	cp->allocationPage = dev->allocationPage;
+-	cp->nFreeChunks = dev->nFreeChunks;
++	if (erasedOk &&
++	    ((yaffs_trace_mask & YAFFS_TRACE_ERASE) || !yaffs_skip_verification(dev))) {
++		int i;
++		for (i = 0; i < dev->param.chunks_per_block; i++) {
++			if (!yaffs_check_chunk_erased
++			    (dev, block_no * dev->param.chunks_per_block + i)) {
++				T(YAFFS_TRACE_ERROR,
++				  (TSTR
++				   (">>Block %d erasure supposedly OK, but chunk %d not erased"
++				    TENDSTR), block_no, i));
++			}
++		}
++	}
++
++	if (erasedOk) {
++		/* Clean it up... */
++		bi->block_state = YAFFS_BLOCK_STATE_EMPTY;
++		bi->seq_number = 0;
++		dev->n_erased_blocks++;
++		bi->pages_in_use = 0;
++		bi->soft_del_pages = 0;
++		bi->has_shrink_hdr = 0;
++		bi->skip_erased_check = 1;  /* This is clean, so no need to check */
++		bi->gc_prioritise = 0;
++		yaffs_clear_chunk_bits(dev, block_no);
+ 
+-	cp->nDeletedFiles = dev->nDeletedFiles;
+-	cp->nUnlinkedFiles = dev->nUnlinkedFiles;
+-	cp->nBackgroundDeletions = dev->nBackgroundDeletions;
+-	cp->sequenceNumber = dev->sequenceNumber;
+-	cp->oldestDirtySequence = dev->oldestDirtySequence;
++		T(YAFFS_TRACE_ERASE,
++		  (TSTR("Erased block %d" TENDSTR), block_no));
++	} else {
++		dev->n_free_chunks -= dev->param.chunks_per_block;	/* We lost a block of free space */
+ 
++		yaffs_retire_block(dev, block_no);
++		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
++		  (TSTR("**>> Block %d retired" TENDSTR), block_no));
++	}
+ }
+ 
+-static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev,
+-					   yaffs_CheckpointDevice *cp)
++static int yaffs_find_alloc_block(yaffs_dev_t *dev)
+ {
+-	dev->nErasedBlocks = cp->nErasedBlocks;
+-	dev->allocationBlock = cp->allocationBlock;
+-	dev->allocationPage = cp->allocationPage;
+-	dev->nFreeChunks = cp->nFreeChunks;
+-
+-	dev->nDeletedFiles = cp->nDeletedFiles;
+-	dev->nUnlinkedFiles = cp->nUnlinkedFiles;
+-	dev->nBackgroundDeletions = cp->nBackgroundDeletions;
+-	dev->sequenceNumber = cp->sequenceNumber;
+-	dev->oldestDirtySequence = cp->oldestDirtySequence;
+-}
++	int i;
+ 
++	yaffs_block_info_t *bi;
+ 
+-static int yaffs_WriteCheckpointDevice(yaffs_Device *dev)
+-{
+-	yaffs_CheckpointDevice cp;
+-	__u32 nBytes;
+-	__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
++	if (dev->n_erased_blocks < 1) {
++		/* Hoosterman we've got a problem.
++		 * Can't get space to gc
++		 */
++		T(YAFFS_TRACE_ERROR,
++		  (TSTR("yaffs tragedy: no more erased blocks" TENDSTR)));
+ 
+-	int ok;
++		return -1;
++	}
+ 
+-	/* Write device runtime values*/
+-	yaffs_DeviceToCheckpointDevice(&cp, dev);
+-	cp.structType = sizeof(cp);
++	/* Find an empty block. */
+ 
+-	ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
++	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
++		dev->alloc_block_finder++;
++		if (dev->alloc_block_finder < dev->internal_start_block
++		    || dev->alloc_block_finder > dev->internal_end_block) {
++			dev->alloc_block_finder = dev->internal_start_block;
++		}
+ 
+-	/* Write block info */
+-	if (ok) {
+-		nBytes = nBlocks * sizeof(yaffs_BlockInfo);
+-		ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes);
++		bi = yaffs_get_block_info(dev, dev->alloc_block_finder);
++
++		if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) {
++			bi->block_state = YAFFS_BLOCK_STATE_ALLOCATING;
++			dev->seq_number++;
++			bi->seq_number = dev->seq_number;
++			dev->n_erased_blocks--;
++			T(YAFFS_TRACE_ALLOCATE,
++			  (TSTR("Allocated block %d, seq  %d, %d left" TENDSTR),
++			   dev->alloc_block_finder, dev->seq_number,
++			   dev->n_erased_blocks));
++			return dev->alloc_block_finder;
++		}
+ 	}
+ 
+-	/* Write chunk bits */
+-	if (ok) {
+-		nBytes = nBlocks * dev->chunkBitmapStride;
+-		ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes);
+-	}
+-	return	 ok ? 1 : 0;
++	T(YAFFS_TRACE_ALWAYS,
++	  (TSTR
++	   ("yaffs tragedy: no more erased blocks, but there should have been %d"
++	    TENDSTR), dev->n_erased_blocks));
+ 
++	return -1;
+ }
+ 
+-static int yaffs_ReadCheckpointDevice(yaffs_Device *dev)
++
++/*
++ * Check if there's space to allocate...
++ * Thinks.... do we need top make this ths same as yaffs_get_free_chunks()?
++ */
++int yaffs_check_alloc_available(yaffs_dev_t *dev, int n_chunks)
+ {
+-	yaffs_CheckpointDevice cp;
+-	__u32 nBytes;
+-	__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
++	int reservedChunks;
++	int reservedBlocks = dev->param.n_reserved_blocks;
++	int checkpointBlocks;
+ 
+-	int ok;
++	checkpointBlocks = yaffs_calc_checkpt_blocks_required(dev);
+ 
+-	ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
+-	if (!ok)
+-		return 0;
++	reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->param.chunks_per_block);
+ 
+-	if (cp.structType != sizeof(cp))
+-		return 0;
++	return (dev->n_free_chunks > (reservedChunks + n_chunks));
++}
++
++static int yaffs_alloc_chunk(yaffs_dev_t *dev, int useReserve,
++		yaffs_block_info_t **blockUsedPtr)
++{
++	int retVal;
++	yaffs_block_info_t *bi;
++
++	if (dev->alloc_block < 0) {
++		/* Get next block to allocate off */
++		dev->alloc_block = yaffs_find_alloc_block(dev);
++		dev->alloc_page = 0;
++	}
+ 
++	if (!useReserve && !yaffs_check_alloc_available(dev, 1)) {
++		/* Not enough space to allocate unless we're allowed to use the reserve. */
++		return -1;
++	}
+ 
+-	yaffs_CheckpointDeviceToDevice(dev, &cp);
++	if (dev->n_erased_blocks < dev->param.n_reserved_blocks
++			&& dev->alloc_page == 0) {
++		T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR)));
++	}
+ 
+-	nBytes = nBlocks * sizeof(yaffs_BlockInfo);
++	/* Next page please.... */
++	if (dev->alloc_block >= 0) {
++		bi = yaffs_get_block_info(dev, dev->alloc_block);
+ 
+-	ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes);
++		retVal = (dev->alloc_block * dev->param.chunks_per_block) +
++			dev->alloc_page;
++		bi->pages_in_use++;
++		yaffs_set_chunk_bit(dev, dev->alloc_block,
++				dev->alloc_page);
+ 
+-	if (!ok)
+-		return 0;
+-	nBytes = nBlocks * dev->chunkBitmapStride;
++		dev->alloc_page++;
+ 
+-	ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes);
++		dev->n_free_chunks--;
+ 
+-	return ok ? 1 : 0;
+-}
++		/* If the block is full set the state to full */
++		if (dev->alloc_page >= dev->param.chunks_per_block) {
++			bi->block_state = YAFFS_BLOCK_STATE_FULL;
++			dev->alloc_block = -1;
++		}
+ 
+-static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp,
+-					   yaffs_Object *obj)
+-{
++		if (blockUsedPtr)
++			*blockUsedPtr = bi;
++
++		return retVal;
++	}
+ 
+-	cp->objectId = obj->objectId;
+-	cp->parentId = (obj->parent) ? obj->parent->objectId : 0;
+-	cp->hdrChunk = obj->hdrChunk;
+-	cp->variantType = obj->variantType;
+-	cp->deleted = obj->deleted;
+-	cp->softDeleted = obj->softDeleted;
+-	cp->unlinked = obj->unlinked;
+-	cp->fake = obj->fake;
+-	cp->renameAllowed = obj->renameAllowed;
+-	cp->unlinkAllowed = obj->unlinkAllowed;
+-	cp->serial = obj->serial;
+-	cp->nDataChunks = obj->nDataChunks;
++	T(YAFFS_TRACE_ERROR,
++			(TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
+ 
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+-		cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize;
+-	else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
+-		cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId;
++	return -1;
+ }
+ 
+-static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp)
++static int yaffs_get_erased_chunks(yaffs_dev_t *dev)
+ {
++	int n;
+ 
+-	yaffs_Object *parent;
++	n = dev->n_erased_blocks * dev->param.chunks_per_block;
+ 
+-	if (obj->variantType != cp->variantType) {
+-		T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d "
+-			TCONT("chunk %d does not match existing object type %d")
+-			TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk,
+-			obj->variantType));
+-		return 0;
+-	}
++	if (dev->alloc_block > 0)
++		n += (dev->param.chunks_per_block - dev->alloc_page);
+ 
+-	obj->objectId = cp->objectId;
++	return n;
+ 
+-	if (cp->parentId)
+-		parent = yaffs_FindOrCreateObjectByNumber(
+-					obj->myDev,
+-					cp->parentId,
+-					YAFFS_OBJECT_TYPE_DIRECTORY);
+-	else
+-		parent = NULL;
++}
+ 
+-	if (parent) {
+-		if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+-			T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d"
+-				TCONT(" chunk %d Parent type, %d, not directory")
+-				TENDSTR),
+-				cp->objectId, cp->parentId, cp->variantType,
+-				cp->hdrChunk, parent->variantType));
+-			return 0;
++/*
++ * yaffs_skip_rest_of_block() skips over the rest of the allocation block
++ * if we don't want to write to it.
++ */
++void yaffs_skip_rest_of_block(yaffs_dev_t *dev)
++{
++	if(dev->alloc_block > 0){
++		yaffs_block_info_t *bi = yaffs_get_block_info(dev, dev->alloc_block);
++		if(bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING){
++			bi->block_state = YAFFS_BLOCK_STATE_FULL;
++			dev->alloc_block = -1;
+ 		}
+-		yaffs_AddObjectToDirectory(parent, obj);
+ 	}
+-
+-	obj->hdrChunk = cp->hdrChunk;
+-	obj->variantType = cp->variantType;
+-	obj->deleted = cp->deleted;
+-	obj->softDeleted = cp->softDeleted;
+-	obj->unlinked = cp->unlinked;
+-	obj->fake = cp->fake;
+-	obj->renameAllowed = cp->renameAllowed;
+-	obj->unlinkAllowed = cp->unlinkAllowed;
+-	obj->serial = cp->serial;
+-	obj->nDataChunks = cp->nDataChunks;
+-
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+-		obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId;
+-	else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK)
+-		obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId;
+-
+-	if (obj->hdrChunk > 0)
+-		obj->lazyLoaded = 1;
+-	return 1;
+ }
+ 
+ 
+-
+-static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn,
+-					__u32 level, int chunkOffset)
++static int yaffs_gc_block(yaffs_dev_t *dev, int block,
++		int wholeBlock)
+ {
++	int oldChunk;
++	int newChunk;
++	int mark_flash;
++	int retVal = YAFFS_OK;
+ 	int i;
+-	yaffs_Device *dev = in->myDev;
+-	int ok = 1;
+-	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
+-
+-	if (tnodeSize < sizeof(yaffs_Tnode))
+-		tnodeSize = sizeof(yaffs_Tnode);
++	int isCheckpointBlock;
++	int matchingChunk;
++	int maxCopies;
+ 
++	int chunksBefore = yaffs_get_erased_chunks(dev);
++	int chunksAfter;
+ 
+-	if (tn) {
+-		if (level > 0) {
++	yaffs_ext_tags tags;
+ 
+-			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
+-				if (tn->internal[i]) {
+-					ok = yaffs_CheckpointTnodeWorker(in,
+-							tn->internal[i],
+-							level - 1,
+-							(chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i);
+-				}
+-			}
+-		} else if (level == 0) {
+-			__u32 baseOffset = chunkOffset <<  YAFFS_TNODES_LEVEL0_BITS;
+-			ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset));
+-			if (ok)
+-				ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize);
+-		}
+-	}
++	yaffs_block_info_t *bi = yaffs_get_block_info(dev, block);
+ 
+-	return ok;
++	yaffs_obj_t *object;
+ 
+-}
++	isCheckpointBlock = (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT);
+ 
+-static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj)
+-{
+-	__u32 endMarker = ~0;
+-	int ok = 1;
+ 
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
+-		ok = yaffs_CheckpointTnodeWorker(obj,
+-					    obj->variant.fileVariant.top,
+-					    obj->variant.fileVariant.topLevel,
+-					    0);
+-		if (ok)
+-			ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) ==
+-				sizeof(endMarker));
+-	}
++	T(YAFFS_TRACE_TRACING,
++			(TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR),
++			 block,
++			 bi->pages_in_use,
++			 bi->has_shrink_hdr,
++			 wholeBlock));
+ 
+-	return ok ? 1 : 0;
+-}
++	/*yaffs_verify_free_chunks(dev); */
+ 
+-static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj)
+-{
+-	__u32 baseChunk;
+-	int ok = 1;
+-	yaffs_Device *dev = obj->myDev;
+-	yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant;
+-	yaffs_Tnode *tn;
+-	int nread = 0;
+-	int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
++	if(bi->block_state == YAFFS_BLOCK_STATE_FULL)
++		bi->block_state = YAFFS_BLOCK_STATE_COLLECTING;
++	
++	bi->has_shrink_hdr = 0;	/* clear the flag so that the block can erase */
+ 
+-	if (tnodeSize < sizeof(yaffs_Tnode))
+-		tnodeSize = sizeof(yaffs_Tnode);
++	dev->gc_disable = 1;
+ 
+-	ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
++	if (isCheckpointBlock ||
++			!yaffs_still_some_chunks(dev, block)) {
++		T(YAFFS_TRACE_TRACING,
++				(TSTR
++				 ("Collecting block %d that has no chunks in use" TENDSTR),
++				 block));
++		yaffs_block_became_dirty(dev, block);
++	} else {
+ 
+-	while (ok && (~baseChunk)) {
+-		nread++;
+-		/* Read level 0 tnode */
++		__u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__);
+ 
++		yaffs_verify_blk(dev, bi, block);
+ 
+-		tn = yaffs_GetTnodeRaw(dev);
+-		if (tn)
+-			ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize);
+-		else
+-			ok = 0;
++		maxCopies = (wholeBlock) ? dev->param.chunks_per_block : 5;
++		oldChunk = block * dev->param.chunks_per_block + dev->gc_chunk;
+ 
+-		if (tn && ok)
+-			ok = yaffs_AddOrFindLevel0Tnode(dev,
+-							fileStructPtr,
+-							baseChunk,
+-							tn) ? 1 : 0;
++		for (/* init already done */;
++		     retVal == YAFFS_OK &&
++		     dev->gc_chunk < dev->param.chunks_per_block &&
++		     (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) &&
++		     maxCopies > 0;
++		     dev->gc_chunk++, oldChunk++) {
++			if (yaffs_check_chunk_bit(dev, block, dev->gc_chunk)) {
+ 
+-		if (ok)
+-			ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
++				/* This page is in use and might need to be copied off */
+ 
+-	}
++				maxCopies--;
+ 
+-	T(YAFFS_TRACE_CHECKPOINT, (
+-		TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR),
+-		nread, baseChunk, ok));
++				mark_flash = 1;
+ 
+-	return ok ? 1 : 0;
+-}
++				yaffs_init_tags(&tags);
+ 
++				yaffs_rd_chunk_tags_nand(dev, oldChunk,
++								buffer, &tags);
+ 
+-static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
+-{
+-	yaffs_Object *obj;
+-	yaffs_CheckpointObject cp;
+-	int i;
+-	int ok = 1;
+-	struct ylist_head *lh;
++				object =
++				    yaffs_find_by_number(dev,
++							     tags.obj_id);
+ 
++				T(YAFFS_TRACE_GC_DETAIL,
++				  (TSTR
++				   ("Collecting chunk in block %d, %d %d %d " TENDSTR),
++				   dev->gc_chunk, tags.obj_id, tags.chunk_id,
++				   tags.n_bytes));
+ 
+-	/* Iterate through the objects in each hash entry,
+-	 * dumping them to the checkpointing stream.
+-	 */
++				if (object && !yaffs_skip_verification(dev)) {
++					if (tags.chunk_id == 0)
++						matchingChunk = object->hdr_chunk;
++					else if (object->soft_del)
++						matchingChunk = oldChunk; /* Defeat the test */
++					else
++						matchingChunk = yaffs_find_chunk_in_file(object, tags.chunk_id, NULL);
+ 
+-	for (i = 0; ok &&  i <  YAFFS_NOBJECT_BUCKETS; i++) {
+-		ylist_for_each(lh, &dev->objectBucket[i].list) {
+-			if (lh) {
+-				obj = ylist_entry(lh, yaffs_Object, hashLink);
+-				if (!obj->deferedFree) {
+-					yaffs_ObjectToCheckpointObject(&cp, obj);
+-					cp.structType = sizeof(cp);
+-
+-					T(YAFFS_TRACE_CHECKPOINT, (
+-						TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR),
+-						cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj));
++					if (oldChunk != matchingChunk)
++						T(YAFFS_TRACE_ERROR,
++						  (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR),
++						  oldChunk, matchingChunk, tags.obj_id, tags.chunk_id));
+ 
+-					ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
++				}
+ 
+-					if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+-						ok = yaffs_WriteCheckpointTnodes(obj);
++				if (!object) {
++					T(YAFFS_TRACE_ERROR,
++					  (TSTR
++					   ("page %d in gc has no object: %d %d %d "
++					    TENDSTR), oldChunk,
++					    tags.obj_id, tags.chunk_id, tags.n_bytes));
+ 				}
+-			}
+-		}
+-	}
+ 
+-	/* Dump end of list */
+-	memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject));
+-	cp.structType = sizeof(cp);
++				if (object &&
++				    object->deleted &&
++				    object->soft_del &&
++				    tags.chunk_id != 0) {
++					/* Data chunk in a soft deleted file, throw it away
++					 * It's a soft deleted data chunk,
++					 * No need to copy this, just forget about it and
++					 * fix up the object.
++					 */
++					 
++					/* Free chunks already includes softdeleted chunks.
++					 * How ever this chunk is going to soon be really deleted
++					 * which will increment free chunks.
++					 * We have to decrement free chunks so this works out properly.
++					 */
++					dev->n_free_chunks--;
++					bi->soft_del_pages--;
++
++					object->n_data_chunks--;
+ 
+-	if (ok)
+-		ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp));
++					if (object->n_data_chunks <= 0) {
++						/* remeber to clean up the object */
++						dev->gc_cleanup_list[dev->n_clean_ups] =
++						    tags.obj_id;
++						dev->n_clean_ups++;
++					}
++					mark_flash = 0;
++				} else if (0) {
++					/* Todo object && object->deleted && object->n_data_chunks == 0 */
++					/* Deleted object header with no data chunks.
++					 * Can be discarded and the file deleted.
++					 */
++					object->hdr_chunk = 0;
++					yaffs_free_tnode(object->my_dev,
++							object->variant.
++							file_variant.top);
++					object->variant.file_variant.top = NULL;
++					yaffs_generic_obj_del(object);
+ 
+-	return ok ? 1 : 0;
+-}
++				} else if (object) {
++					/* It's either a data chunk in a live file or
++					 * an ObjectHeader, so we're interested in it.
++					 * NB Need to keep the ObjectHeaders of deleted files
++					 * until the whole file has been deleted off
++					 */
++					tags.serial_number++;
+ 
+-static int yaffs_ReadCheckpointObjects(yaffs_Device *dev)
+-{
+-	yaffs_Object *obj;
+-	yaffs_CheckpointObject cp;
+-	int ok = 1;
+-	int done = 0;
+-	yaffs_Object *hardList = NULL;
++					dev->n_gc_copies++;
+ 
+-	while (ok && !done) {
+-		ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp));
+-		if (cp.structType != sizeof(cp)) {
+-			T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR),
+-				cp.structType, sizeof(cp), ok));
+-			ok = 0;
+-		}
+-
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
+-			cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk));
+-
+-		if (ok && cp.objectId == ~0)
+-			done = 1;
+-		else if (ok) {
+-			obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType);
+-			if (obj) {
+-				ok = yaffs_CheckpointObjectToObject(obj, &cp);
+-				if (!ok)
+-					break;
+-				if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
+-					ok = yaffs_ReadCheckpointTnodes(obj);
+-				} else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
+-					obj->hardLinks.next =
+-						(struct ylist_head *) hardList;
+-					hardList = obj;
+-				}
+-			} else
+-				ok = 0;
+-		}
+-	}
++					if (tags.chunk_id == 0) {
++						/* It is an object Id,
++						 * We need to nuke the shrinkheader flags first
++						 * Also need to clean up shadowing.
++						 * We no longer want the shrinkHeader flag since its work is done
++						 * and if it is left in place it will mess up scanning.
++						 */
+ 
+-	if (ok)
+-		yaffs_HardlinkFixup(dev, hardList);
++						yaffs_obj_header *oh;
++						oh = (yaffs_obj_header *)buffer;
+ 
+-	return ok ? 1 : 0;
+-}
++						oh->is_shrink = 0;
++						tags.extra_is_shrink = 0;
+ 
+-static int yaffs_WriteCheckpointSum(yaffs_Device *dev)
+-{
+-	__u32 checkpointSum;
+-	int ok;
++						oh->shadows_obj = 0;
++						oh->inband_shadowed_obj_id = 0;
++						tags.extra_shadows = 0;
++
++						/* Update file size */
++						if(object->variant_type == YAFFS_OBJECT_TYPE_FILE){
++							oh->file_size = object->variant.file_variant.file_size;
++							tags.extra_length = oh->file_size;
++						}
++
++						yaffs_verify_oh(object, oh, &tags, 1);
++						newChunk =
++						    yaffs_write_new_chunk(dev,(__u8 *) oh, &tags, 1);
++					} else
++						newChunk =
++						    yaffs_write_new_chunk(dev, buffer, &tags, 1);
++
++					if (newChunk < 0) {
++						retVal = YAFFS_FAIL;
++					} else {
+ 
+-	yaffs_GetCheckpointSum(dev, &checkpointSum);
++						/* Ok, now fix up the Tnodes etc. */
+ 
+-	ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum));
++						if (tags.chunk_id == 0) {
++							/* It's a header */
++							object->hdr_chunk =  newChunk;
++							object->serial =   tags.serial_number;
++						} else {
++							/* It's a data chunk */
++							int ok;
++							ok = yaffs_put_chunk_in_file
++							    (object,
++							     tags.chunk_id,
++							     newChunk, 0);
++						}
++					}
++				}
+ 
+-	if (!ok)
+-		return 0;
++				if (retVal == YAFFS_OK)
++					yaffs_chunk_del(dev, oldChunk, mark_flash, __LINE__);
+ 
+-	return 1;
+-}
++			}
++		}
+ 
+-static int yaffs_ReadCheckpointSum(yaffs_Device *dev)
+-{
+-	__u32 checkpointSum0;
+-	__u32 checkpointSum1;
+-	int ok;
++		yaffs_release_temp_buffer(dev, buffer, __LINE__);
+ 
+-	yaffs_GetCheckpointSum(dev, &checkpointSum0);
+ 
+-	ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1));
+ 
+-	if (!ok)
+-		return 0;
++	}
+ 
+-	if (checkpointSum0 != checkpointSum1)
+-		return 0;
++	yaffs_verify_collected_blk(dev, bi, block);
+ 
+-	return 1;
+-}
+ 
+ 
+-static int yaffs_WriteCheckpointData(yaffs_Device *dev)
+-{
+-	int ok = 1;
++	if (bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) {
++		/*
++		 * The gc did not complete. Set block state back to FULL
++		 * because checkpointing does not restore gc.
++		 */
++		bi->block_state = YAFFS_BLOCK_STATE_FULL;
++	} else {
++		/* The gc completed. */
++		/* Do any required cleanups */
++		for (i = 0; i < dev->n_clean_ups; i++) {
++			/* Time to delete the file too */
++			object =
++			    yaffs_find_by_number(dev,
++						     dev->gc_cleanup_list[i]);
++			if (object) {
++				yaffs_free_tnode(dev,
++						object->variant.file_variant.
++						top);
++				object->variant.file_variant.top = NULL;
++				T(YAFFS_TRACE_GC,
++				  (TSTR
++				   ("yaffs: About to finally delete object %d"
++				    TENDSTR), object->obj_id));
++				yaffs_generic_obj_del(object);
++				object->my_dev->n_deleted_files--;
++			}
+ 
+-	if (dev->skipCheckpointWrite || !dev->isYaffs2) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR)));
+-		ok = 0;
+-	}
++		}
+ 
+-	if (ok)
+-		ok = yaffs_CheckpointOpen(dev, 1);
+ 
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
+-		ok = yaffs_WriteCheckpointValidityMarker(dev, 1);
+-	}
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR)));
+-		ok = yaffs_WriteCheckpointDevice(dev);
+-	}
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR)));
+-		ok = yaffs_WriteCheckpointObjects(dev);
+-	}
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
+-		ok = yaffs_WriteCheckpointValidityMarker(dev, 0);
++		chunksAfter = yaffs_get_erased_chunks(dev);
++		if (chunksBefore >= chunksAfter) {
++			T(YAFFS_TRACE_GC,
++			  (TSTR
++			   ("gc did not increase free chunks before %d after %d"
++			    TENDSTR), chunksBefore, chunksAfter));
++		}
++		dev->gc_block = 0;
++		dev->gc_chunk = 0;
++		dev->n_clean_ups = 0;
+ 	}
+ 
+-	if (ok)
+-		ok = yaffs_WriteCheckpointSum(dev);
+-
+-	if (!yaffs_CheckpointClose(dev))
+-		ok = 0;
+-
+-	if (ok)
+-		dev->isCheckpointed = 1;
+-	else
+-		dev->isCheckpointed = 0;
++	dev->gc_disable = 0;
+ 
+-	return dev->isCheckpointed;
++	return retVal;
+ }
+ 
+-static int yaffs_ReadCheckpointData(yaffs_Device *dev)
++/*
++ * FindBlockForgarbageCollection is used to select the dirtiest block (or close enough)
++ * for garbage collection.
++ */
++
++static unsigned yaffs_find_gc_block(yaffs_dev_t *dev,
++					int aggressive,
++					int background)
+ {
+-	int ok = 1;
++	int i;
++	int iterations;
++	unsigned selected = 0;
++	int prioritised = 0;
++	int prioritisedExists = 0;
++	yaffs_block_info_t *bi;
++	int threshold;
+ 
+-	if (dev->skipCheckpointRead || !dev->isYaffs2) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR)));
+-		ok = 0;
+-	}
++	/* First let's see if we need to grab a prioritised block */
++	if (dev->has_pending_prioritised_gc && !aggressive) {
++		dev->gc_dirtiest = 0;
++		bi = dev->block_info;
++		for (i = dev->internal_start_block;
++			i <= dev->internal_end_block && !selected;
++			i++) {
++
++			if (bi->gc_prioritise) {
++				prioritisedExists = 1;
++				if (bi->block_state == YAFFS_BLOCK_STATE_FULL &&
++				   yaffs_block_ok_for_gc(dev, bi)) {
++					selected = i;
++					prioritised = 1;
++				}
++			}
++			bi++;
++		}
+ 
+-	if (ok)
+-		ok = yaffs_CheckpointOpen(dev, 0); /* open for read */
++		/*
++		 * If there is a prioritised block and none was selected then
++		 * this happened because there is at least one old dirty block gumming
++		 * up the works. Let's gc the oldest dirty block.
++		 */
+ 
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
+-		ok = yaffs_ReadCheckpointValidityMarker(dev, 1);
+-	}
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR)));
+-		ok = yaffs_ReadCheckpointDevice(dev);
+-	}
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR)));
+-		ok = yaffs_ReadCheckpointObjects(dev);
+-	}
+-	if (ok) {
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
+-		ok = yaffs_ReadCheckpointValidityMarker(dev, 0);
+-	}
++		if(prioritisedExists &&
++			!selected &&
++			dev->oldest_dirty_block > 0)
++			selected = dev->oldest_dirty_block;
+ 
+-	if (ok) {
+-		ok = yaffs_ReadCheckpointSum(dev);
+-		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok));
++		if (!prioritisedExists) /* None found, so we can clear this */
++			dev->has_pending_prioritised_gc = 0;
+ 	}
+ 
+-	if (!yaffs_CheckpointClose(dev))
+-		ok = 0;
+-
+-	if (ok)
+-		dev->isCheckpointed = 1;
+-	else
+-		dev->isCheckpointed = 0;
+-
+-	return ok ? 1 : 0;
++	/* If we're doing aggressive GC then we are happy to take a less-dirty block, and
++	 * search harder.
++	 * else (we're doing a leasurely gc), then we only bother to do this if the
++	 * block has only a few pages in use.
++	 */
+ 
+-}
++	if (!selected){
++		int pagesUsed;
++		int nBlocks = dev->internal_end_block - dev->internal_start_block + 1;
++		if (aggressive){
++			threshold = dev->param.chunks_per_block;
++			iterations = nBlocks;
++		} else {
++			int maxThreshold;
+ 
+-static void yaffs_InvalidateCheckpoint(yaffs_Device *dev)
+-{
+-	if (dev->isCheckpointed ||
+-			dev->blocksInCheckpoint > 0) {
+-		dev->isCheckpointed = 0;
+-		yaffs_CheckpointInvalidateStream(dev);
+-		if (dev->superBlock && dev->markSuperBlockDirty)
+-			dev->markSuperBlockDirty(dev->superBlock);
+-	}
+-}
++			if(background)
++				maxThreshold = dev->param.chunks_per_block/2;
++			else
++				maxThreshold = dev->param.chunks_per_block/8;
+ 
++			if(maxThreshold <  YAFFS_GC_PASSIVE_THRESHOLD)
++				maxThreshold = YAFFS_GC_PASSIVE_THRESHOLD;
+ 
+-int yaffs_CheckpointSave(yaffs_Device *dev)
+-{
++			threshold = background ?
++				(dev->gc_not_done + 2) * 2 : 0;
++			if(threshold <YAFFS_GC_PASSIVE_THRESHOLD)
++				threshold = YAFFS_GC_PASSIVE_THRESHOLD;
++			if(threshold > maxThreshold)
++				threshold = maxThreshold;
+ 
+-	T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
++			iterations = nBlocks / 16 + 1;
++			if (iterations > 100)
++				iterations = 100;
++		}
+ 
+-	yaffs_VerifyObjects(dev);
+-	yaffs_VerifyBlocks(dev);
+-	yaffs_VerifyFreeChunks(dev);
++		for (i = 0;
++			i < iterations &&
++			(dev->gc_dirtiest < 1 ||
++				dev->gc_pages_in_use > YAFFS_GC_GOOD_ENOUGH);
++			i++) {
++			dev->gc_block_finder++;
++			if (dev->gc_block_finder < dev->internal_start_block ||
++				dev->gc_block_finder > dev->internal_end_block)
++				dev->gc_block_finder = dev->internal_start_block;
+ 
+-	if (!dev->isCheckpointed) {
+-		yaffs_InvalidateCheckpoint(dev);
+-		yaffs_WriteCheckpointData(dev);
+-	}
++			bi = yaffs_get_block_info(dev, dev->gc_block_finder);
+ 
+-	T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
++			pagesUsed = bi->pages_in_use - bi->soft_del_pages;
+ 
+-	return dev->isCheckpointed;
+-}
++			if (bi->block_state == YAFFS_BLOCK_STATE_FULL &&
++				pagesUsed < dev->param.chunks_per_block &&
++				(dev->gc_dirtiest < 1 || pagesUsed < dev->gc_pages_in_use) &&
++				yaffs_block_ok_for_gc(dev, bi)) {
++				dev->gc_dirtiest = dev->gc_block_finder;
++				dev->gc_pages_in_use = pagesUsed;
++			}
++		}
+ 
+-int yaffs_CheckpointRestore(yaffs_Device *dev)
+-{
+-	int retval;
+-	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
++		if(dev->gc_dirtiest > 0 && dev->gc_pages_in_use <= threshold)
++			selected = dev->gc_dirtiest;
++	}
+ 
+-	retval = yaffs_ReadCheckpointData(dev);
++	/*
++	 * If nothing has been selected for a while, try selecting the oldest dirty
++	 * because that's gumming up the works.
++	 */
+ 
+-	if (dev->isCheckpointed) {
+-		yaffs_VerifyObjects(dev);
+-		yaffs_VerifyBlocks(dev);
+-		yaffs_VerifyFreeChunks(dev);
++	if(!selected && dev->param.is_yaffs2 &&
++		dev->gc_not_done >= ( background ? 10 : 20)){
++		yaffs2_find_oldest_dirty_seq(dev);
++		if(dev->oldest_dirty_block > 0) {
++			selected = dev->oldest_dirty_block;
++			dev->gc_dirtiest = selected;
++			dev->oldest_dirty_gc_count++;
++			bi = yaffs_get_block_info(dev, selected);
++			dev->gc_pages_in_use =  bi->pages_in_use - bi->soft_del_pages;
++		} else
++			dev->gc_not_done = 0;
+ 	}
+ 
+-	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed));
++	if(selected){
++		T(YAFFS_TRACE_GC,
++		  (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR),
++		  selected,
++		  dev->param.chunks_per_block - dev->gc_pages_in_use,
++		  prioritised));
++
++		dev->n_gc_blocks++;
++		if(background)
++			dev->bg_gcs++;
++
++		dev->gc_dirtiest = 0;
++		dev->gc_pages_in_use = 0;
++		dev->gc_not_done = 0;
++		if(dev->refresh_skip > 0)
++			dev->refresh_skip--;
++	} else{
++		dev->gc_not_done++;
++		T(YAFFS_TRACE_GC,
++		  (TSTR("GC none: finder %d skip %d threshold %d dirtiest %d using %d oldest %d%s" TENDSTR),
++		  dev->gc_block_finder, dev->gc_not_done,
++		  threshold,
++		  dev->gc_dirtiest, dev->gc_pages_in_use,
++		  dev->oldest_dirty_block,
++		  background ? " bg" : ""));
++	}
+ 
+-	return retval;
++	return selected;
+ }
+ 
+-/*--------------------- File read/write ------------------------
+- * Read and write have very similar structures.
+- * In general the read/write has three parts to it
+- * An incomplete chunk to start with (if the read/write is not chunk-aligned)
+- * Some complete chunks
+- * An incomplete chunk to end off with
++/* New garbage collector
++ * If we're very low on erased blocks then we do aggressive garbage collection
++ * otherwise we do "leasurely" garbage collection.
++ * Aggressive gc looks further (whole array) and will accept less dirty blocks.
++ * Passive gc only inspects smaller areas and will only accept more dirty blocks.
+  *
+- * Curve-balls: the first chunk might also be the last chunk.
++ * The idea is to help clear out space in a more spread-out manner.
++ * Dunno if it really does anything useful.
+  */
+-
+-int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset,
+-			int nBytes)
++static int yaffs_check_gc(yaffs_dev_t *dev, int background)
+ {
++	int aggressive = 0;
++	int gcOk = YAFFS_OK;
++	int maxTries = 0;
++	int minErased;
++	int erasedChunks;
++	int checkpointBlockAdjust;
+ 
+-	int chunk;
+-	__u32 start;
+-	int nToCopy;
+-	int n = nBytes;
+-	int nDone = 0;
+-	yaffs_ChunkCache *cache;
+-
+-	yaffs_Device *dev;
+-
+-	dev = in->myDev;
+-
+-	while (n > 0) {
+-		/* chunk = offset / dev->nDataBytesPerChunk + 1; */
+-		/* start = offset % dev->nDataBytesPerChunk; */
+-		yaffs_AddrToChunk(dev, offset, &chunk, &start);
+-		chunk++;
+-
+-		/* OK now check for the curveball where the start and end are in
+-		 * the same chunk.
+-		 */
+-		if ((start + n) < dev->nDataBytesPerChunk)
+-			nToCopy = n;
+-		else
+-			nToCopy = dev->nDataBytesPerChunk - start;
+-
+-		cache = yaffs_FindChunkCache(in, chunk);
+-
+-		/* If the chunk is already in the cache or it is less than a whole chunk
+-		 * or we're using inband tags then use the cache (if there is caching)
+-		 * else bypass the cache.
+-		 */
+-		if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) {
+-			if (dev->nShortOpCaches > 0) {
+-
+-				/* If we can't find the data in the cache, then load it up. */
++	if(dev->param.gc_control &&
++		(dev->param.gc_control(dev) & 1) == 0)
++		return YAFFS_OK;
+ 
+-				if (!cache) {
+-					cache = yaffs_GrabChunkCache(in->myDev);
+-					cache->object = in;
+-					cache->chunkId = chunk;
+-					cache->dirty = 0;
+-					cache->locked = 0;
+-					yaffs_ReadChunkDataFromObject(in, chunk,
+-								      cache->
+-								      data);
+-					cache->nBytes = 0;
+-				}
++	if (dev->gc_disable) {
++		/* Bail out so we don't get recursive gc */
++		return YAFFS_OK;
++	}
+ 
+-				yaffs_UseChunkCache(dev, cache, 0);
++	/* This loop should pass the first time.
++	 * We'll only see looping here if the collection does not increase space.
++	 */
+ 
+-				cache->locked = 1;
++	do {
++		maxTries++;
+ 
++		checkpointBlockAdjust = yaffs_calc_checkpt_blocks_required(dev);
+ 
+-				memcpy(buffer, &cache->data[start], nToCopy);
++		minErased  = dev->param.n_reserved_blocks + checkpointBlockAdjust + 1;
++		erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
+ 
+-				cache->locked = 0;
+-			} else {
+-				/* Read into the local buffer then copy..*/
++		/* If we need a block soon then do aggressive gc.*/
++		if (dev->n_erased_blocks < minErased)
++			aggressive = 1;
++		else {
++			if(!background && erasedChunks > (dev->n_free_chunks / 4))
++				break;
+ 
+-				__u8 *localBuffer =
+-				    yaffs_GetTempBuffer(dev, __LINE__);
+-				yaffs_ReadChunkDataFromObject(in, chunk,
+-							      localBuffer);
++			if(dev->gc_skip > 20)
++				dev->gc_skip = 20;
++			if(erasedChunks < dev->n_free_chunks/2 ||
++				dev->gc_skip < 1 ||
++				background)
++				aggressive = 0;
++			else {
++				dev->gc_skip--;
++				break;
++			}
++		}
+ 
+-				memcpy(buffer, &localBuffer[start], nToCopy);
++		dev->gc_skip = 5;
+ 
++                /* If we don't already have a block being gc'd then see if we should start another */
+ 
+-				yaffs_ReleaseTempBuffer(dev, localBuffer,
+-							__LINE__);
+-			}
++		if (dev->gc_block < 1 && !aggressive) {
++			dev->gc_block = yaffs2_find_refresh_block(dev);
++			dev->gc_chunk = 0;
++			dev->n_clean_ups=0;
++		}
++		if (dev->gc_block < 1) {
++			dev->gc_block = yaffs_find_gc_block(dev, aggressive, background);
++			dev->gc_chunk = 0;
++			dev->n_clean_ups=0;
++		}
+ 
+-		} else {
++		if (dev->gc_block > 0) {
++			dev->all_gcs++;
++			if (!aggressive)
++				dev->passive_gc_count++;
+ 
+-			/* A full chunk. Read directly into the supplied buffer. */
+-			yaffs_ReadChunkDataFromObject(in, chunk, buffer);
++			T(YAFFS_TRACE_GC,
++			  (TSTR
++			   ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR),
++			   dev->n_erased_blocks, aggressive));
+ 
++			gcOk = yaffs_gc_block(dev, dev->gc_block, aggressive);
+ 		}
+ 
+-		n -= nToCopy;
+-		offset += nToCopy;
+-		buffer += nToCopy;
+-		nDone += nToCopy;
+-
+-	}
++		if (dev->n_erased_blocks < (dev->param.n_reserved_blocks) && dev->gc_block > 0) {
++			T(YAFFS_TRACE_GC,
++			  (TSTR
++			   ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d"
++			    TENDSTR), dev->n_erased_blocks, maxTries, dev->gc_block));
++		}
++	} while ((dev->n_erased_blocks < dev->param.n_reserved_blocks) &&
++		 (dev->gc_block > 0) &&
++		 (maxTries < 2));
+ 
+-	return nDone;
++	return aggressive ? gcOk : YAFFS_OK;
+ }
+ 
+-int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset,
+-			int nBytes, int writeThrough)
++/*
++ * yaffs_bg_gc()
++ * Garbage collects. Intended to be called from a background thread.
++ * Returns non-zero if at least half the free chunks are erased.
++ */
++int yaffs_bg_gc(yaffs_dev_t *dev, unsigned urgency)
+ {
++	int erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
+ 
+-	int chunk;
+-	__u32 start;
+-	int nToCopy;
+-	int n = nBytes;
+-	int nDone = 0;
+-	int nToWriteBack;
+-	int startOfWrite = offset;
+-	int chunkWritten = 0;
+-	__u32 nBytesRead;
+-	__u32 chunkStart;
++	T(YAFFS_TRACE_BACKGROUND, (TSTR("Background gc %u" TENDSTR),urgency));
+ 
+-	yaffs_Device *dev;
++	yaffs_check_gc(dev, 1);
++	return erasedChunks > dev->n_free_chunks/2;
++}
+ 
+-	dev = in->myDev;
++/*-------------------------  TAGS --------------------------------*/
+ 
+-	while (n > 0 && chunkWritten >= 0) {
+-		/* chunk = offset / dev->nDataBytesPerChunk + 1; */
+-		/* start = offset % dev->nDataBytesPerChunk; */
+-		yaffs_AddrToChunk(dev, offset, &chunk, &start);
++static int yaffs_tags_match(const yaffs_ext_tags *tags, int obj_id,
++			   int chunkInObject)
++{
++	return (tags->chunk_id == chunkInObject &&
++		tags->obj_id == obj_id && !tags->is_deleted) ? 1 : 0;
+ 
+-		if (chunk * dev->nDataBytesPerChunk + start != offset ||
+-				start >= dev->nDataBytesPerChunk) {
+-			T(YAFFS_TRACE_ERROR, (
+-			   TSTR("AddrToChunk of offset %d gives chunk %d start %d"
+-			   TENDSTR),
+-			   (int)offset, chunk, start));
+-		}
+-		chunk++;
++}
+ 
+-		/* OK now check for the curveball where the start and end are in
+-		 * the same chunk.
+-		 */
+ 
+-		if ((start + n) < dev->nDataBytesPerChunk) {
+-			nToCopy = n;
++/*-------------------- Data file manipulation -----------------*/
+ 
+-			/* Now folks, to calculate how many bytes to write back....
+-			 * If we're overwriting and not writing to then end of file then
+-			 * we need to write back as much as was there before.
+-			 */
++static int yaffs_find_chunk_in_file(yaffs_obj_t *in, int inode_chunk,
++				 yaffs_ext_tags *tags)
++{
++	/*Get the Tnode, then get the level 0 offset chunk offset */
++	yaffs_tnode_t *tn;
++	int theChunk = -1;
++	yaffs_ext_tags localTags;
++	int retVal = -1;
+ 
+-			chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk);
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-			if (chunkStart > in->variant.fileVariant.fileSize)
+-				nBytesRead = 0; /* Past end of file */
+-			else
+-				nBytesRead = in->variant.fileVariant.fileSize - chunkStart;
++	if (!tags) {
++		/* Passed a NULL, so use our own tags space */
++		tags = &localTags;
++	}
+ 
+-			if (nBytesRead > dev->nDataBytesPerChunk)
+-				nBytesRead = dev->nDataBytesPerChunk;
++	tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk);
+ 
+-			nToWriteBack =
+-			    (nBytesRead >
+-			     (start + n)) ? nBytesRead : (start + n);
++	if (tn) {
++		theChunk = yaffs_get_group_base(dev, tn, inode_chunk);
+ 
+-			if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk)
+-				YBUG();
++		retVal =
++		    yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id,
++					   inode_chunk);
++	}
++	return retVal;
++}
+ 
+-		} else {
+-			nToCopy = dev->nDataBytesPerChunk - start;
+-			nToWriteBack = dev->nDataBytesPerChunk;
+-		}
++static int yaffs_find_del_file_chunk(yaffs_obj_t *in, int inode_chunk,
++					  yaffs_ext_tags *tags)
++{
++	/* Get the Tnode, then get the level 0 offset chunk offset */
++	yaffs_tnode_t *tn;
++	int theChunk = -1;
++	yaffs_ext_tags localTags;
+ 
+-		if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) {
+-			/* An incomplete start or end chunk (or maybe both start and end chunk),
+-			 * or we're using inband tags, so we want to use the cache buffers.
+-			 */
+-			if (dev->nShortOpCaches > 0) {
+-				yaffs_ChunkCache *cache;
+-				/* If we can't find the data in the cache, then load the cache */
+-				cache = yaffs_FindChunkCache(in, chunk);
++	yaffs_dev_t *dev = in->my_dev;
++	int retVal = -1;
+ 
+-				if (!cache
+-				    && yaffs_CheckSpaceForAllocation(in->
+-								     myDev)) {
+-					cache = yaffs_GrabChunkCache(in->myDev);
+-					cache->object = in;
+-					cache->chunkId = chunk;
+-					cache->dirty = 0;
+-					cache->locked = 0;
+-					yaffs_ReadChunkDataFromObject(in, chunk,
+-								      cache->
+-								      data);
+-				} else if (cache &&
+-					!cache->dirty &&
+-					!yaffs_CheckSpaceForAllocation(in->myDev)) {
+-					/* Drop the cache if it was a read cache item and
+-					 * no space check has been made for it.
+-					 */
+-					 cache = NULL;
+-				}
++	if (!tags) {
++		/* Passed a NULL, so use our own tags space */
++		tags = &localTags;
++	}
+ 
+-				if (cache) {
+-					yaffs_UseChunkCache(dev, cache, 1);
+-					cache->locked = 1;
++	tn = yaffs_find_tnode_0(dev, &in->variant.file_variant, inode_chunk);
+ 
++	if (tn) {
+ 
+-					memcpy(&cache->data[start], buffer,
+-					       nToCopy);
++		theChunk = yaffs_get_group_base(dev, tn, inode_chunk);
+ 
++		retVal =
++		    yaffs_find_chunk_in_group(dev, theChunk, tags, in->obj_id,
++					   inode_chunk);
+ 
+-					cache->locked = 0;
+-					cache->nBytes = nToWriteBack;
++		/* Delete the entry in the filestructure (if found) */
++		if (retVal != -1)
++			yaffs_load_tnode_0(dev, tn, inode_chunk, 0);
++	}
+ 
+-					if (writeThrough) {
+-						chunkWritten =
+-						    yaffs_WriteChunkDataToObject
+-						    (cache->object,
+-						     cache->chunkId,
+-						     cache->data, cache->nBytes,
+-						     1);
+-						cache->dirty = 0;
+-					}
++	return retVal;
++}
+ 
+-				} else {
+-					chunkWritten = -1;	/* fail the write */
+-				}
+-			} else {
+-				/* An incomplete start or end chunk (or maybe both start and end chunk)
+-				 * Read into the local buffer then copy, then copy over and write back.
+-				 */
+ 
+-				__u8 *localBuffer =
+-				    yaffs_GetTempBuffer(dev, __LINE__);
++int yaffs_put_chunk_in_file(yaffs_obj_t *in, int inode_chunk,
++			        int nand_chunk, int in_scan)
++{
++	/* NB in_scan is zero unless scanning.
++	 * For forward scanning, in_scan is > 0;
++	 * for backward scanning in_scan is < 0
++	 *
++	 * nand_chunk = 0 is a dummy insert to make sure the tnodes are there.
++	 */
+ 
+-				yaffs_ReadChunkDataFromObject(in, chunk,
+-							      localBuffer);
++	yaffs_tnode_t *tn;
++	yaffs_dev_t *dev = in->my_dev;
++	int existingChunk;
++	yaffs_ext_tags existingTags;
++	yaffs_ext_tags newTags;
++	unsigned existingSerial, newSerial;
+ 
++	if (in->variant_type != YAFFS_OBJECT_TYPE_FILE) {
++		/* Just ignore an attempt at putting a chunk into a non-file during scanning
++		 * If it is not during Scanning then something went wrong!
++		 */
++		if (!in_scan) {
++			T(YAFFS_TRACE_ERROR,
++			  (TSTR
++			   ("yaffs tragedy:attempt to put data chunk into a non-file"
++			    TENDSTR)));
++			YBUG();
++		}
+ 
++		yaffs_chunk_del(dev, nand_chunk, 1, __LINE__);
++		return YAFFS_OK;
++	}
+ 
+-				memcpy(&localBuffer[start], buffer, nToCopy);
++	tn = yaffs_add_find_tnode_0(dev,
++					&in->variant.file_variant,
++					inode_chunk,
++					NULL);
++	if (!tn)
++		return YAFFS_FAIL;
++	
++	if(!nand_chunk)
++		/* Dummy insert, bail now */
++		return YAFFS_OK;
+ 
+-				chunkWritten =
+-				    yaffs_WriteChunkDataToObject(in, chunk,
+-								 localBuffer,
+-								 nToWriteBack,
+-								 0);
++	existingChunk = yaffs_get_group_base(dev, tn, inode_chunk);
+ 
+-				yaffs_ReleaseTempBuffer(dev, localBuffer,
+-							__LINE__);
++	if (in_scan != 0) {
++		/* If we're scanning then we need to test for duplicates
++		 * NB This does not need to be efficient since it should only ever
++		 * happen when the power fails during a write, then only one
++		 * chunk should ever be affected.
++		 *
++		 * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO
++		 * Update: For backward scanning we don't need to re-read tags so this is quite cheap.
++		 */
++
++		if (existingChunk > 0) {
++			/* NB Right now existing chunk will not be real chunk_id if the chunk group size > 1
++			 *    thus we have to do a FindChunkInFile to get the real chunk id.
++			 *
++			 * We have a duplicate now we need to decide which one to use:
++			 *
++			 * Backwards scanning YAFFS2: The old one is what we use, dump the new one.
++			 * Forward scanning YAFFS2: The new one is what we use, dump the old one.
++			 * YAFFS1: Get both sets of tags and compare serial numbers.
++			 */
++
++			if (in_scan > 0) {
++				/* Only do this for forward scanning */
++				yaffs_rd_chunk_tags_nand(dev,
++								nand_chunk,
++								NULL, &newTags);
+ 
++				/* Do a proper find */
++				existingChunk =
++				    yaffs_find_chunk_in_file(in, inode_chunk,
++							  &existingTags);
+ 			}
+ 
+-		} else {
+-			/* A full chunk. Write directly from the supplied buffer. */
++			if (existingChunk <= 0) {
++				/*Hoosterman - how did this happen? */
+ 
++				T(YAFFS_TRACE_ERROR,
++				  (TSTR
++				   ("yaffs tragedy: existing chunk < 0 in scan"
++				    TENDSTR)));
+ 
++			}
+ 
+-			chunkWritten =
+-			    yaffs_WriteChunkDataToObject(in, chunk, buffer,
+-							 dev->nDataBytesPerChunk,
+-							 0);
++			/* NB The deleted flags should be false, otherwise the chunks will
++			 * not be loaded during a scan
++			 */
+ 
+-			/* Since we've overwritten the cached data, we better invalidate it. */
+-			yaffs_InvalidateChunkCache(in, chunk);
+-		}
++			if (in_scan > 0) {
++				newSerial = newTags.serial_number;
++				existingSerial = existingTags.serial_number;
++			}
+ 
+-		if (chunkWritten >= 0) {
+-			n -= nToCopy;
+-			offset += nToCopy;
+-			buffer += nToCopy;
+-			nDone += nToCopy;
++			if ((in_scan > 0) &&
++			    (existingChunk <= 0 ||
++			     ((existingSerial + 1) & 3) == newSerial)) {
++				/* Forward scanning.
++				 * Use new
++				 * Delete the old one and drop through to update the tnode
++				 */
++				yaffs_chunk_del(dev, existingChunk, 1,
++						  __LINE__);
++			} else {
++				/* Backward scanning or we want to use the existing one
++				 * Use existing.
++				 * Delete the new one and return early so that the tnode isn't changed
++				 */
++				yaffs_chunk_del(dev, nand_chunk, 1,
++						  __LINE__);
++				return YAFFS_OK;
++			}
+ 		}
+ 
+ 	}
+ 
+-	/* Update file object */
+-
+-	if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize)
+-		in->variant.fileVariant.fileSize = (startOfWrite + nDone);
++	if (existingChunk == 0)
++		in->n_data_chunks++;
+ 
+-	in->dirty = 1;
++	yaffs_load_tnode_0(dev, tn, inode_chunk, nand_chunk);
+ 
+-	return nDone;
++	return YAFFS_OK;
+ }
+ 
++static int yaffs_rd_data_obj(yaffs_obj_t *in, int inode_chunk,
++					__u8 *buffer)
++{
++	int nand_chunk = yaffs_find_chunk_in_file(in, inode_chunk, NULL);
+ 
+-/* ---------------------- File resizing stuff ------------------ */
++	if (nand_chunk >= 0)
++		return yaffs_rd_chunk_tags_nand(in->my_dev, nand_chunk,
++						buffer, NULL);
++	else {
++		T(YAFFS_TRACE_NANDACCESS,
++		  (TSTR("Chunk %d not found zero instead" TENDSTR),
++		   nand_chunk));
++		/* get sane (zero) data if you read a hole */
++		memset(buffer, 0, in->my_dev->data_bytes_per_chunk);
++		return 0;
++	}
++
++}
+ 
+-static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize)
++void yaffs_chunk_del(yaffs_dev_t *dev, int chunk_id, int mark_flash, int lyn)
+ {
++	int block;
++	int page;
++	yaffs_ext_tags tags;
++	yaffs_block_info_t *bi;
+ 
+-	yaffs_Device *dev = in->myDev;
+-	int oldFileSize = in->variant.fileVariant.fileSize;
++	if (chunk_id <= 0)
++		return;
+ 
+-	int lastDel = 1 + (oldFileSize - 1) / dev->nDataBytesPerChunk;
++	dev->n_deletions++;
++	block = chunk_id / dev->param.chunks_per_block;
++	page = chunk_id % dev->param.chunks_per_block;
+ 
+-	int startDel = 1 + (newSize + dev->nDataBytesPerChunk - 1) /
+-	    dev->nDataBytesPerChunk;
+-	int i;
+-	int chunkId;
+ 
+-	/* Delete backwards so that we don't end up with holes if
+-	 * power is lost part-way through the operation.
++	if (!yaffs_check_chunk_bit(dev, block, page))
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Deleting invalid chunk %d"TENDSTR),
++			 chunk_id));
++
++	bi = yaffs_get_block_info(dev, block);
++	
++	yaffs2_update_oldest_dirty_seq(dev, block, bi);
++
++	T(YAFFS_TRACE_DELETION,
++	  (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunk_id));
++
++	if (!dev->param.is_yaffs2 && mark_flash &&
++	    bi->block_state != YAFFS_BLOCK_STATE_COLLECTING) {
++
++		yaffs_init_tags(&tags);
++
++		tags.is_deleted = 1;
++
++		yaffs_wr_chunk_tags_nand(dev, chunk_id, NULL, &tags);
++		yaffs_handle_chunk_update(dev, chunk_id, &tags);
++	} else {
++		dev->n_unmarked_deletions++;
++	}
++
++	/* Pull out of the management area.
++	 * If the whole block became dirty, this will kick off an erasure.
+ 	 */
+-	for (i = lastDel; i >= startDel; i--) {
+-		/* NB this could be optimised somewhat,
+-		 * eg. could retrieve the tags and write them without
+-		 * using yaffs_DeleteChunk
+-		 */
++	if (bi->block_state == YAFFS_BLOCK_STATE_ALLOCATING ||
++	    bi->block_state == YAFFS_BLOCK_STATE_FULL ||
++	    bi->block_state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
++	    bi->block_state == YAFFS_BLOCK_STATE_COLLECTING) {
++		dev->n_free_chunks++;
+ 
+-		chunkId = yaffs_FindAndDeleteChunkInFile(in, i, NULL);
+-		if (chunkId > 0) {
+-			if (chunkId <
+-			    (dev->internalStartBlock * dev->nChunksPerBlock)
+-			    || chunkId >=
+-			    ((dev->internalEndBlock +
+-			      1) * dev->nChunksPerBlock)) {
+-				T(YAFFS_TRACE_ALWAYS,
+-				  (TSTR("Found daft chunkId %d for %d" TENDSTR),
+-				   chunkId, i));
+-			} else {
+-				in->nDataChunks--;
+-				yaffs_DeleteChunk(dev, chunkId, 1, __LINE__);
+-			}
++		yaffs_clear_chunk_bit(dev, block, page);
++
++		bi->pages_in_use--;
++
++		if (bi->pages_in_use == 0 &&
++		    !bi->has_shrink_hdr &&
++		    bi->block_state != YAFFS_BLOCK_STATE_ALLOCATING &&
++		    bi->block_state != YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
++			yaffs_block_became_dirty(dev, block);
+ 		}
++
+ 	}
+ 
+ }
+ 
+-int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize)
++static int yaffs_wr_data_obj(yaffs_obj_t *in, int inode_chunk,
++					const __u8 *buffer, int n_bytes,
++					int useReserve)
+ {
++	/* Find old chunk Need to do this to get serial number
++	 * Write new one and patch into tree.
++	 * Invalidate old tags.
++	 */
+ 
+-	int oldFileSize = in->variant.fileVariant.fileSize;
+-	__u32 newSizeOfPartialChunk;
+-	int newFullChunks;
++	int prevChunkId;
++	yaffs_ext_tags prevTags;
+ 
+-	yaffs_Device *dev = in->myDev;
++	int newChunkId;
++	yaffs_ext_tags newTags;
+ 
+-	yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk);
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-	yaffs_FlushFilesChunkCache(in);
+-	yaffs_InvalidateWholeChunkCache(in);
++	yaffs_check_gc(dev,0);
+ 
+-	yaffs_CheckGarbageCollection(dev);
++	/* Get the previous chunk at this location in the file if it exists.
++	 * If it does not exist then put a zero into the tree. This creates
++	 * the tnode now, rather than later when it is harder to clean up.
++	 */
++	prevChunkId = yaffs_find_chunk_in_file(in, inode_chunk, &prevTags);
++	if(prevChunkId < 1 &&
++		!yaffs_put_chunk_in_file(in, inode_chunk, 0, 0))
++		return 0;
+ 
+-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE)
+-		return YAFFS_FAIL;
++	/* Set up new tags */
++	yaffs_init_tags(&newTags);
+ 
+-	if (newSize == oldFileSize)
+-		return YAFFS_OK;
++	newTags.chunk_id = inode_chunk;
++	newTags.obj_id = in->obj_id;
++	newTags.serial_number =
++	    (prevChunkId > 0) ? prevTags.serial_number + 1 : 1;
++	newTags.n_bytes = n_bytes;
+ 
+-	if (newSize < oldFileSize) {
++	if (n_bytes < 1 || n_bytes > dev->param.total_bytes_per_chunk) {
++		T(YAFFS_TRACE_ERROR,
++		(TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), n_bytes));
++		YBUG();
++	}
++	
++		
++	newChunkId =
++	    yaffs_write_new_chunk(dev, buffer, &newTags,
++					      useReserve);
+ 
+-		yaffs_PruneResizedChunks(in, newSize);
++	if (newChunkId > 0) {
++		yaffs_put_chunk_in_file(in, inode_chunk, newChunkId, 0);
+ 
+-		if (newSizeOfPartialChunk != 0) {
+-			int lastChunk = 1 + newFullChunks;
++		if (prevChunkId > 0)
++			yaffs_chunk_del(dev, prevChunkId, 1, __LINE__);
+ 
+-			__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
++		yaffs_verify_file_sane(in);
++	}
++	return newChunkId;
+ 
+-			/* Got to read and rewrite the last chunk with its new size and zero pad */
+-			yaffs_ReadChunkDataFromObject(in, lastChunk,
+-						      localBuffer);
++}
+ 
+-			memset(localBuffer + newSizeOfPartialChunk, 0,
+-			       dev->nDataBytesPerChunk - newSizeOfPartialChunk);
++/* UpdateObjectHeader updates the header on NAND for an object.
++ * If name is not NULL, then that new name is used.
++ */
++int yaffs_update_oh(yaffs_obj_t *in, const YCHAR *name, int force,
++			     int is_shrink, int shadows, yaffs_xattr_mod *xmod)
++{
+ 
+-			yaffs_WriteChunkDataToObject(in, lastChunk, localBuffer,
+-						     newSizeOfPartialChunk, 1);
++	yaffs_block_info_t *bi;
+ 
+-			yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__);
+-		}
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-		in->variant.fileVariant.fileSize = newSize;
++	int prevChunkId;
++	int retVal = 0;
++	int result = 0;
+ 
+-		yaffs_PruneFileStructure(dev, &in->variant.fileVariant);
+-	} else {
+-		/* newsSize > oldFileSize */
+-		in->variant.fileVariant.fileSize = newSize;
+-	}
++	int newChunkId;
++	yaffs_ext_tags newTags;
++	yaffs_ext_tags oldTags;
++	const YCHAR *alias = NULL;
+ 
++	__u8 *buffer = NULL;
++	YCHAR old_name[YAFFS_MAX_NAME_LENGTH + 1];
+ 
+-	/* Write a new object header.
+-	 * show we've shrunk the file, if need be
+-	 * Do this only if the file is not in the deleted directories.
+-	 */
+-	if (in->parent &&
+-	    in->parent->objectId != YAFFS_OBJECTID_UNLINKED &&
+-	    in->parent->objectId != YAFFS_OBJECTID_DELETED)
+-		yaffs_UpdateObjectHeader(in, NULL, 0,
+-					 (newSize < oldFileSize) ? 1 : 0, 0);
++	yaffs_obj_header *oh = NULL;
+ 
+-	return YAFFS_OK;
+-}
++	yaffs_strcpy(old_name, _Y("silly old name"));
+ 
+-loff_t yaffs_GetFileSize(yaffs_Object *obj)
+-{
+-	obj = yaffs_GetEquivalentObject(obj);
+ 
+-	switch (obj->variantType) {
+-	case YAFFS_OBJECT_TYPE_FILE:
+-		return obj->variant.fileVariant.fileSize;
+-	case YAFFS_OBJECT_TYPE_SYMLINK:
+-		return yaffs_strlen(obj->variant.symLinkVariant.alias);
+-	default:
+-		return 0;
+-	}
+-}
++	if (!in->fake ||
++		in == dev->root_dir || /* The root_dir should also be saved */
++		force  || xmod) {
+ 
++		yaffs_check_gc(dev,0);
++		yaffs_check_obj_details_loaded(in);
+ 
++		buffer = yaffs_get_temp_buffer(in->my_dev, __LINE__);
++		oh = (yaffs_obj_header *) buffer;
++
++		prevChunkId = in->hdr_chunk;
++
++		if (prevChunkId > 0) {
++			result = yaffs_rd_chunk_tags_nand(dev, prevChunkId,
++							buffer, &oldTags);
++
++			yaffs_verify_oh(in, oh, &oldTags, 0);
++
++			memcpy(old_name, oh->name, sizeof(oh->name));
++			memset(buffer, 0xFF, sizeof(yaffs_obj_header));
++		} else
++			memset(buffer, 0xFF, dev->data_bytes_per_chunk);
++
++		oh->type = in->variant_type;
++		oh->yst_mode = in->yst_mode;
++		oh->shadows_obj = oh->inband_shadowed_obj_id = shadows;
+ 
+-int yaffs_FlushFile(yaffs_Object *in, int updateTime)
+-{
+-	int retVal;
+-	if (in->dirty) {
+-		yaffs_FlushFilesChunkCache(in);
+-		if (updateTime) {
+ #ifdef CONFIG_YAFFS_WINCE
+-			yfsd_WinFileTimeNow(in->win_mtime);
++		oh->win_atime[0] = in->win_atime[0];
++		oh->win_ctime[0] = in->win_ctime[0];
++		oh->win_mtime[0] = in->win_mtime[0];
++		oh->win_atime[1] = in->win_atime[1];
++		oh->win_ctime[1] = in->win_ctime[1];
++		oh->win_mtime[1] = in->win_mtime[1];
+ #else
++		oh->yst_uid = in->yst_uid;
++		oh->yst_gid = in->yst_gid;
++		oh->yst_atime = in->yst_atime;
++		oh->yst_mtime = in->yst_mtime;
++		oh->yst_ctime = in->yst_ctime;
++		oh->yst_rdev = in->yst_rdev;
++#endif
++		if (in->parent)
++			oh->parent_obj_id = in->parent->obj_id;
++		else
++			oh->parent_obj_id = 0;
++
++		if (name && *name) {
++			memset(oh->name, 0, sizeof(oh->name));
++			yaffs_load_oh_from_name(dev,oh->name,name);
++		} else if (prevChunkId > 0)
++			memcpy(oh->name, old_name, sizeof(oh->name));
++		else
++			memset(oh->name, 0, sizeof(oh->name));
+ 
+-			in->yst_mtime = Y_CURRENT_TIME;
++		oh->is_shrink = is_shrink;
+ 
+-#endif
++		switch (in->variant_type) {
++		case YAFFS_OBJECT_TYPE_UNKNOWN:
++			/* Should not happen */
++			break;
++		case YAFFS_OBJECT_TYPE_FILE:
++			oh->file_size =
++			    (oh->parent_obj_id == YAFFS_OBJECTID_DELETED
++			     || oh->parent_obj_id ==
++			     YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant.
++			    file_variant.file_size;
++			break;
++		case YAFFS_OBJECT_TYPE_HARDLINK:
++			oh->equiv_id =
++			    in->variant.hardlink_variant.equiv_id;
++			break;
++		case YAFFS_OBJECT_TYPE_SPECIAL:
++			/* Do nothing */
++			break;
++		case YAFFS_OBJECT_TYPE_DIRECTORY:
++			/* Do nothing */
++			break;
++		case YAFFS_OBJECT_TYPE_SYMLINK:
++			alias = in->variant.symlink_variant.alias;
++			if(!alias)
++				alias = _Y("no alias");
++			yaffs_strncpy(oh->alias,
++					alias,
++				      YAFFS_MAX_ALIAS_LENGTH);
++			oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0;
++			break;
+ 		}
+ 
+-		retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >=
+-			0) ? YAFFS_OK : YAFFS_FAIL;
+-	} else {
+-		retVal = YAFFS_OK;
+-	}
++		/* process any xattrib modifications */
++		if(xmod)
++			yaffs_apply_xattrib_mod(in, (char *)buffer, xmod);
+ 
+-	return retVal;
+ 
+-}
++		/* Tags */
++		yaffs_init_tags(&newTags);
++		in->serial++;
++		newTags.chunk_id = 0;
++		newTags.obj_id = in->obj_id;
++		newTags.serial_number = in->serial;
+ 
+-static int yaffs_DoGenericObjectDeletion(yaffs_Object *in)
+-{
++		/* Add extra info for file header */
+ 
+-	/* First off, invalidate the file's data in the cache, without flushing. */
+-	yaffs_InvalidateWholeChunkCache(in);
++		newTags.extra_available = 1;
++		newTags.extra_parent_id = oh->parent_obj_id;
++		newTags.extra_length = oh->file_size;
++		newTags.extra_is_shrink = oh->is_shrink;
++		newTags.extra_equiv_id = oh->equiv_id;
++		newTags.extra_shadows = (oh->shadows_obj > 0) ? 1 : 0;
++		newTags.extra_obj_type = in->variant_type;
+ 
+-	if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) {
+-		/* Move to the unlinked directory so we have a record that it was deleted. */
+-		yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0);
++		yaffs_verify_oh(in, oh, &newTags, 1);
+ 
+-	}
++		/* Create new chunk in NAND */
++		newChunkId =
++		    yaffs_write_new_chunk(dev, buffer, &newTags,
++						      (prevChunkId > 0) ? 1 : 0);
+ 
+-	yaffs_RemoveObjectFromDirectory(in);
+-	yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__);
+-	in->hdrChunk = 0;
++		if (newChunkId >= 0) {
+ 
+-	yaffs_FreeObject(in);
+-	return YAFFS_OK;
++			in->hdr_chunk = newChunkId;
+ 
+-}
++			if (prevChunkId > 0) {
++				yaffs_chunk_del(dev, prevChunkId, 1,
++						  __LINE__);
++			}
+ 
+-/* yaffs_DeleteFile deletes the whole file data
+- * and the inode associated with the file.
+- * It does not delete the links associated with the file.
+- */
+-static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in)
+-{
++			if (!yaffs_obj_cache_dirty(in))
++				in->dirty = 0;
+ 
+-	int retVal;
+-	int immediateDeletion = 0;
++			/* If this was a shrink, then mark the block that the chunk lives on */
++			if (is_shrink) {
++				bi = yaffs_get_block_info(in->my_dev,
++					newChunkId / in->my_dev->param.chunks_per_block);
++				bi->has_shrink_hdr = 1;
++			}
+ 
+-#ifdef __KERNEL__
+-	if (!in->myInode)
+-		immediateDeletion = 1;
+-#else
+-	if (in->inUse <= 0)
+-		immediateDeletion = 1;
+-#endif
++		}
++
++		retVal = newChunkId;
+ 
+-	if (immediateDeletion) {
+-		retVal =
+-		    yaffs_ChangeObjectName(in, in->myDev->deletedDir,
+-					   _Y("deleted"), 0, 0);
+-		T(YAFFS_TRACE_TRACING,
+-		  (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
+-		   in->objectId));
+-		in->deleted = 1;
+-		in->myDev->nDeletedFiles++;
+-		if (1 || in->myDev->isYaffs2)
+-			yaffs_ResizeFile(in, 0);
+-		yaffs_SoftDeleteFile(in);
+-	} else {
+-		retVal =
+-		    yaffs_ChangeObjectName(in, in->myDev->unlinkedDir,
+-					   _Y("unlinked"), 0, 0);
+ 	}
+ 
++	if (buffer)
++		yaffs_release_temp_buffer(dev, buffer, __LINE__);
+ 
+ 	return retVal;
+ }
+ 
+-int yaffs_DeleteFile(yaffs_Object *in)
+-{
+-	int retVal = YAFFS_OK;
+-	int deleted = in->deleted;
+-
+-	yaffs_ResizeFile(in, 0);
+-
+-	if (in->nDataChunks > 0) {
+-		/* Use soft deletion if there is data in the file.
+-		 * That won't be the case if it has been resized to zero.
+-		 */
+-		if (!in->unlinked)
+-			retVal = yaffs_UnlinkFileIfNeeded(in);
+-
+-		if (retVal == YAFFS_OK && in->unlinked && !in->deleted) {
+-			in->deleted = 1;
+-			deleted = 1;
+-			in->myDev->nDeletedFiles++;
+-			yaffs_SoftDeleteFile(in);
+-		}
+-		return deleted ? YAFFS_OK : YAFFS_FAIL;
+-	} else {
+-		/* The file has no data chunks so we toss it immediately */
+-		yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top);
+-		in->variant.fileVariant.top = NULL;
+-		yaffs_DoGenericObjectDeletion(in);
+-
+-		return YAFFS_OK;
+-	}
+-}
++/*------------------------ Short Operations Cache ----------------------------------------
++ *   In many situations where there is no high level buffering (eg WinCE) a lot of
++ *   reads might be short sequential reads, and a lot of writes may be short
++ *   sequential writes. eg. scanning/writing a jpeg file.
++ *   In these cases, a short read/write cache can provide a huge perfomance benefit
++ *   with dumb-as-a-rock code.
++ *   In Linux, the page cache provides read buffering aand the short op cache provides write
++ *   buffering.
++ *
++ *   There are a limited number (~10) of cache chunks per device so that we don't
++ *   need a very intelligent search.
++ */
+ 
+-static int yaffs_DeleteDirectory(yaffs_Object *in)
++static int yaffs_obj_cache_dirty(yaffs_obj_t *obj)
+ {
+-	/* First check that the directory is empty. */
+-	if (ylist_empty(&in->variant.directoryVariant.children))
+-		return yaffs_DoGenericObjectDeletion(in);
++	yaffs_dev_t *dev = obj->my_dev;
++	int i;
++	yaffs_cache_t *cache;
++	int nCaches = obj->my_dev->param.n_caches;
+ 
+-	return YAFFS_FAIL;
++	for (i = 0; i < nCaches; i++) {
++		cache = &dev->cache[i];
++		if (cache->object == obj &&
++		    cache->dirty)
++			return 1;
++	}
+ 
++	return 0;
+ }
+ 
+-static int yaffs_DeleteSymLink(yaffs_Object *in)
+-{
+-	YFREE(in->variant.symLinkVariant.alias);
+-
+-	return yaffs_DoGenericObjectDeletion(in);
+-}
+ 
+-static int yaffs_DeleteHardLink(yaffs_Object *in)
++static void yaffs_flush_file_cache(yaffs_obj_t *obj)
+ {
+-	/* remove this hardlink from the list assocaited with the equivalent
+-	 * object
+-	 */
+-	ylist_del_init(&in->hardLinks);
+-	return yaffs_DoGenericObjectDeletion(in);
+-}
++	yaffs_dev_t *dev = obj->my_dev;
++	int lowest = -99;	/* Stop compiler whining. */
++	int i;
++	yaffs_cache_t *cache;
++	int chunkWritten = 0;
++	int nCaches = obj->my_dev->param.n_caches;
+ 
+-int yaffs_DeleteObject(yaffs_Object *obj)
+-{
+-int retVal = -1;
+-	switch (obj->variantType) {
+-	case YAFFS_OBJECT_TYPE_FILE:
+-		retVal = yaffs_DeleteFile(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_DIRECTORY:
+-		return yaffs_DeleteDirectory(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_SYMLINK:
+-		retVal = yaffs_DeleteSymLink(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_HARDLINK:
+-		retVal = yaffs_DeleteHardLink(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_SPECIAL:
+-		retVal = yaffs_DoGenericObjectDeletion(obj);
+-		break;
+-	case YAFFS_OBJECT_TYPE_UNKNOWN:
+-		retVal = 0;
+-		break;		/* should not happen. */
+-	}
++	if (nCaches > 0) {
++		do {
++			cache = NULL;
+ 
+-	return retVal;
+-}
++			/* Find the dirty cache for this object with the lowest chunk id. */
++			for (i = 0; i < nCaches; i++) {
++				if (dev->cache[i].object == obj &&
++				    dev->cache[i].dirty) {
++					if (!cache
++					    || dev->cache[i].chunk_id <
++					    lowest) {
++						cache = &dev->cache[i];
++						lowest = cache->chunk_id;
++					}
++				}
++			}
+ 
+-static int yaffs_UnlinkWorker(yaffs_Object *obj)
+-{
++			if (cache && !cache->locked) {
++				/* Write it out and free it up */
+ 
+-	int immediateDeletion = 0;
++				chunkWritten =
++				    yaffs_wr_data_obj(cache->object,
++								 cache->chunk_id,
++								 cache->data,
++								 cache->n_bytes,
++								 1);
++				cache->dirty = 0;
++				cache->object = NULL;
++			}
+ 
+-#ifdef __KERNEL__
+-	if (!obj->myInode)
+-		immediateDeletion = 1;
+-#else
+-	if (obj->inUse <= 0)
+-		immediateDeletion = 1;
+-#endif
++		} while (cache && chunkWritten > 0);
+ 
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
+-		return yaffs_DeleteHardLink(obj);
+-	} else if (!ylist_empty(&obj->hardLinks)) {
+-		/* Curve ball: We're unlinking an object that has a hardlink.
+-		 *
+-		 * This problem arises because we are not strictly following
+-		 * The Linux link/inode model.
+-		 *
+-		 * We can't really delete the object.
+-		 * Instead, we do the following:
+-		 * - Select a hardlink.
+-		 * - Unhook it from the hard links
+-		 * - Unhook it from its parent directory (so that the rename can work)
+-		 * - Rename the object to the hardlink's name.
+-		 * - Delete the hardlink
+-		 */
++		if (cache) {
++			/* Hoosterman, disk full while writing cache out. */
++			T(YAFFS_TRACE_ERROR,
++			  (TSTR("yaffs tragedy: no space during cache write" TENDSTR)));
+ 
+-		yaffs_Object *hl;
+-		int retVal;
+-		YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
++		}
++	}
+ 
+-		hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
++}
+ 
+-		ylist_del_init(&hl->hardLinks);
+-		ylist_del_init(&hl->siblings);
++/*yaffs_flush_whole_cache(dev)
++ *
++ *
++ */
+ 
+-		yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
++void yaffs_flush_whole_cache(yaffs_dev_t *dev)
++{
++	yaffs_obj_t *obj;
++	int nCaches = dev->param.n_caches;
++	int i;
+ 
+-		retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0);
++	/* Find a dirty object in the cache and flush it...
++	 * until there are no further dirty objects.
++	 */
++	do {
++		obj = NULL;
++		for (i = 0; i < nCaches && !obj; i++) {
++			if (dev->cache[i].object &&
++			    dev->cache[i].dirty)
++				obj = dev->cache[i].object;
+ 
+-		if (retVal == YAFFS_OK)
+-			retVal = yaffs_DoGenericObjectDeletion(hl);
++		}
++		if (obj)
++			yaffs_flush_file_cache(obj);
+ 
+-		return retVal;
++	} while (obj);
+ 
+-	} else if (immediateDeletion) {
+-		switch (obj->variantType) {
+-		case YAFFS_OBJECT_TYPE_FILE:
+-			return yaffs_DeleteFile(obj);
+-			break;
+-		case YAFFS_OBJECT_TYPE_DIRECTORY:
+-			return yaffs_DeleteDirectory(obj);
+-			break;
+-		case YAFFS_OBJECT_TYPE_SYMLINK:
+-			return yaffs_DeleteSymLink(obj);
+-			break;
+-		case YAFFS_OBJECT_TYPE_SPECIAL:
+-			return yaffs_DoGenericObjectDeletion(obj);
+-			break;
+-		case YAFFS_OBJECT_TYPE_HARDLINK:
+-		case YAFFS_OBJECT_TYPE_UNKNOWN:
+-		default:
+-			return YAFFS_FAIL;
+-		}
+-	} else
+-		return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir,
+-					   _Y("unlinked"), 0, 0);
+ }
+ 
+ 
+-static int yaffs_UnlinkObject(yaffs_Object *obj)
++/* Grab us a cache chunk for use.
++ * First look for an empty one.
++ * Then look for the least recently used non-dirty one.
++ * Then look for the least recently used dirty one...., flush and look again.
++ */
++static yaffs_cache_t *yaffs_grab_chunk_worker(yaffs_dev_t *dev)
+ {
++	int i;
+ 
+-	if (obj && obj->unlinkAllowed)
+-		return yaffs_UnlinkWorker(obj);
+-
+-	return YAFFS_FAIL;
+-
+-}
+-int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name)
+-{
+-	yaffs_Object *obj;
++	if (dev->param.n_caches > 0) {
++		for (i = 0; i < dev->param.n_caches; i++) {
++			if (!dev->cache[i].object)
++				return &dev->cache[i];
++		}
++	}
+ 
+-	obj = yaffs_FindObjectByName(dir, name);
+-	return yaffs_UnlinkObject(obj);
++	return NULL;
+ }
+ 
+-/*----------------------- Initialisation Scanning ---------------------- */
+-
+-static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId,
+-				int backwardScanning)
++static yaffs_cache_t *yaffs_grab_chunk_cache(yaffs_dev_t *dev)
+ {
+-	yaffs_Object *obj;
++	yaffs_cache_t *cache;
++	yaffs_obj_t *theObj;
++	int usage;
++	int i;
++	int pushout;
+ 
+-	if (!backwardScanning) {
+-		/* Handle YAFFS1 forward scanning case
+-		 * For YAFFS1 we always do the deletion
+-		 */
++	if (dev->param.n_caches > 0) {
++		/* Try find a non-dirty one... */
+ 
+-	} else {
+-		/* Handle YAFFS2 case (backward scanning)
+-		 * If the shadowed object exists then ignore.
+-		 */
+-		if (yaffs_FindObjectByNumber(dev, objId))
+-			return;
+-	}
++		cache = yaffs_grab_chunk_worker(dev);
+ 
+-	/* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc.
+-	 * We put it in unlinked dir to be cleaned up after the scanning
+-	 */
+-	obj =
+-	    yaffs_FindOrCreateObjectByNumber(dev, objId,
+-					     YAFFS_OBJECT_TYPE_FILE);
+-	if (!obj)
+-		return;
+-	yaffs_AddObjectToDirectory(dev->unlinkedDir, obj);
+-	obj->variant.fileVariant.shrinkSize = 0;
+-	obj->valid = 1;		/* So that we don't read any other info for this file */
++		if (!cache) {
++			/* They were all dirty, find the last recently used object and flush
++			 * its cache, then  find again.
++			 * NB what's here is not very accurate, we actually flush the object
++			 * the last recently used page.
++			 */
+ 
+-}
++			/* With locking we can't assume we can use entry zero */
+ 
+-typedef struct {
+-	int seq;
+-	int block;
+-} yaffs_BlockIndex;
++			theObj = NULL;
++			usage = -1;
++			cache = NULL;
++			pushout = -1;
+ 
++			for (i = 0; i < dev->param.n_caches; i++) {
++				if (dev->cache[i].object &&
++				    !dev->cache[i].locked &&
++				    (dev->cache[i].last_use < usage || !cache)) {
++					usage = dev->cache[i].last_use;
++					theObj = dev->cache[i].object;
++					cache = &dev->cache[i];
++					pushout = i;
++				}
++			}
+ 
+-static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList)
+-{
+-	yaffs_Object *hl;
+-	yaffs_Object *in;
++			if (!cache || cache->dirty) {
++				/* Flush and try again */
++				yaffs_flush_file_cache(theObj);
++				cache = yaffs_grab_chunk_worker(dev);
++			}
+ 
+-	while (hardList) {
+-		hl = hardList;
+-		hardList = (yaffs_Object *) (hardList->hardLinks.next);
++		}
++		return cache;
++	} else
++		return NULL;
+ 
+-		in = yaffs_FindObjectByNumber(dev,
+-					      hl->variant.hardLinkVariant.
+-					      equivalentObjectId);
++}
+ 
+-		if (in) {
+-			/* Add the hardlink pointers */
+-			hl->variant.hardLinkVariant.equivalentObject = in;
+-			ylist_add(&hl->hardLinks, &in->hardLinks);
+-		} else {
+-			/* Todo Need to report/handle this better.
+-			 * Got a problem... hardlink to a non-existant object
+-			 */
+-			hl->variant.hardLinkVariant.equivalentObject = NULL;
+-			YINIT_LIST_HEAD(&hl->hardLinks);
++/* Find a cached chunk */
++static yaffs_cache_t *yaffs_find_chunk_cache(const yaffs_obj_t *obj,
++					      int chunk_id)
++{
++	yaffs_dev_t *dev = obj->my_dev;
++	int i;
++	if (dev->param.n_caches > 0) {
++		for (i = 0; i < dev->param.n_caches; i++) {
++			if (dev->cache[i].object == obj &&
++			    dev->cache[i].chunk_id == chunk_id) {
++				dev->cache_hits++;
+ 
++				return &dev->cache[i];
++			}
+ 		}
+ 	}
++	return NULL;
+ }
+ 
++/* Mark the chunk for the least recently used algorithym */
++static void yaffs_use_cache(yaffs_dev_t *dev, yaffs_cache_t *cache,
++				int isAWrite)
++{
++
++	if (dev->param.n_caches > 0) {
++		if (dev->cache_last_use < 0 || dev->cache_last_use > 100000000) {
++			/* Reset the cache usages */
++			int i;
++			for (i = 1; i < dev->param.n_caches; i++)
++				dev->cache[i].last_use = 0;
+ 
++			dev->cache_last_use = 0;
++		}
+ 
++		dev->cache_last_use++;
+ 
++		cache->last_use = dev->cache_last_use;
+ 
+-static int ybicmp(const void *a, const void *b)
+-{
+-	register int aseq = ((yaffs_BlockIndex *)a)->seq;
+-	register int bseq = ((yaffs_BlockIndex *)b)->seq;
+-	register int ablock = ((yaffs_BlockIndex *)a)->block;
+-	register int bblock = ((yaffs_BlockIndex *)b)->block;
+-	if (aseq == bseq)
+-		return ablock - bblock;
+-	else
+-		return aseq - bseq;
++		if (isAWrite)
++			cache->dirty = 1;
++	}
+ }
+ 
++/* Invalidate a single cache page.
++ * Do this when a whole page gets written,
++ * ie the short cache for this page is no longer valid.
++ */
++static void yaffs_invalidate_chunk_cache(yaffs_obj_t *object, int chunk_id)
++{
++	if (object->my_dev->param.n_caches > 0) {
++		yaffs_cache_t *cache = yaffs_find_chunk_cache(object, chunk_id);
+ 
+-struct yaffs_ShadowFixerStruct {
+-	int objectId;
+-	int shadowedId;
+-	struct yaffs_ShadowFixerStruct *next;
+-};
+-
++		if (cache)
++			cache->object = NULL;
++	}
++}
+ 
+-static void yaffs_StripDeletedObjects(yaffs_Device *dev)
++/* Invalidate all the cache pages associated with this object
++ * Do this whenever ther file is deleted or resized.
++ */
++static void yaffs_invalidate_whole_cache(yaffs_obj_t *in)
+ {
+-	/*
+-	*  Sort out state of unlinked and deleted objects after scanning.
+-	*/
+-	struct ylist_head *i;
+-	struct ylist_head *n;
+-	yaffs_Object *l;
++	int i;
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-	/* Soft delete all the unlinked files */
+-	ylist_for_each_safe(i, n,
+-		&dev->unlinkedDir->variant.directoryVariant.children) {
+-		if (i) {
+-			l = ylist_entry(i, yaffs_Object, siblings);
+-			yaffs_DeleteObject(l);
++	if (dev->param.n_caches > 0) {
++		/* Invalidate it. */
++		for (i = 0; i < dev->param.n_caches; i++) {
++			if (dev->cache[i].object == in)
++				dev->cache[i].object = NULL;
+ 		}
+ 	}
++}
+ 
+-	ylist_for_each_safe(i, n,
+-		&dev->deletedDir->variant.directoryVariant.children) {
+-		if (i) {
+-			l = ylist_entry(i, yaffs_Object, siblings);
+-			yaffs_DeleteObject(l);
+-		}
+-	}
+ 
+-}
++/*--------------------- File read/write ------------------------
++ * Read and write have very similar structures.
++ * In general the read/write has three parts to it
++ * An incomplete chunk to start with (if the read/write is not chunk-aligned)
++ * Some complete chunks
++ * An incomplete chunk to end off with
++ *
++ * Curve-balls: the first chunk might also be the last chunk.
++ */
+ 
+-static int yaffs_Scan(yaffs_Device *dev)
++int yaffs_file_rd(yaffs_obj_t *in, __u8 *buffer, loff_t offset,
++			int n_bytes)
+ {
+-	yaffs_ExtendedTags tags;
+-	int blk;
+-	int blockIterator;
+-	int startIterator;
+-	int endIterator;
+-	int result;
+ 
+ 	int chunk;
+-	int c;
+-	int deleted;
+-	yaffs_BlockState state;
+-	yaffs_Object *hardList = NULL;
+-	yaffs_BlockInfo *bi;
+-	__u32 sequenceNumber;
+-	yaffs_ObjectHeader *oh;
+-	yaffs_Object *in;
+-	yaffs_Object *parent;
++	__u32 start;
++	int nToCopy;
++	int n = n_bytes;
++	int nDone = 0;
++	yaffs_cache_t *cache;
+ 
+-	int alloc_failed = 0;
++	yaffs_dev_t *dev;
+ 
+-	struct yaffs_ShadowFixerStruct *shadowFixerList = NULL;
++	dev = in->my_dev;
+ 
++	while (n > 0) {
++		/* chunk = offset / dev->data_bytes_per_chunk + 1; */
++		/* start = offset % dev->data_bytes_per_chunk; */
++		yaffs_addr_to_chunk(dev, offset, &chunk, &start);
++		chunk++;
+ 
+-	__u8 *chunkData;
++		/* OK now check for the curveball where the start and end are in
++		 * the same chunk.
++		 */
++		if ((start + n) < dev->data_bytes_per_chunk)
++			nToCopy = n;
++		else
++			nToCopy = dev->data_bytes_per_chunk - start;
+ 
++		cache = yaffs_find_chunk_cache(in, chunk);
+ 
++		/* If the chunk is already in the cache or it is less than a whole chunk
++		 * or we're using inband tags then use the cache (if there is caching)
++		 * else bypass the cache.
++		 */
++		if (cache || nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) {
++			if (dev->param.n_caches > 0) {
+ 
+-	T(YAFFS_TRACE_SCAN,
+-	  (TSTR("yaffs_Scan starts  intstartblk %d intendblk %d..." TENDSTR),
+-	   dev->internalStartBlock, dev->internalEndBlock));
++				/* If we can't find the data in the cache, then load it up. */
+ 
+-	chunkData = yaffs_GetTempBuffer(dev, __LINE__);
++				if (!cache) {
++					cache = yaffs_grab_chunk_cache(in->my_dev);
++					cache->object = in;
++					cache->chunk_id = chunk;
++					cache->dirty = 0;
++					cache->locked = 0;
++					yaffs_rd_data_obj(in, chunk,
++								      cache->
++								      data);
++					cache->n_bytes = 0;
++				}
+ 
+-	dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
++				yaffs_use_cache(dev, cache, 0);
+ 
+-	/* Scan all the blocks to determine their state */
+-	for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) {
+-		bi = yaffs_GetBlockInfo(dev, blk);
+-		yaffs_ClearChunkBits(dev, blk);
+-		bi->pagesInUse = 0;
+-		bi->softDeletions = 0;
++				cache->locked = 1;
+ 
+-		yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber);
+ 
+-		bi->blockState = state;
+-		bi->sequenceNumber = sequenceNumber;
++				memcpy(buffer, &cache->data[start], nToCopy);
+ 
+-		if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
+-			bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
++				cache->locked = 0;
++			} else {
++				/* Read into the local buffer then copy..*/
+ 
+-		T(YAFFS_TRACE_SCAN_DEBUG,
+-		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
+-		   state, sequenceNumber));
++				__u8 *localBuffer =
++				    yaffs_get_temp_buffer(dev, __LINE__);
++				yaffs_rd_data_obj(in, chunk,
++							      localBuffer);
+ 
+-		if (state == YAFFS_BLOCK_STATE_DEAD) {
+-			T(YAFFS_TRACE_BAD_BLOCKS,
+-			  (TSTR("block %d is bad" TENDSTR), blk));
+-		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
+-			T(YAFFS_TRACE_SCAN_DEBUG,
+-			  (TSTR("Block empty " TENDSTR)));
+-			dev->nErasedBlocks++;
+-			dev->nFreeChunks += dev->nChunksPerBlock;
+-		}
+-	}
++				memcpy(buffer, &localBuffer[start], nToCopy);
+ 
+-	startIterator = dev->internalStartBlock;
+-	endIterator = dev->internalEndBlock;
+ 
+-	/* For each block.... */
+-	for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator;
+-	     blockIterator++) {
++				yaffs_release_temp_buffer(dev, localBuffer,
++							__LINE__);
++			}
+ 
+-		YYIELD();
++		} else {
+ 
+-		YYIELD();
++			/* A full chunk. Read directly into the supplied buffer. */
++			yaffs_rd_data_obj(in, chunk, buffer);
+ 
+-		blk = blockIterator;
++		}
+ 
+-		bi = yaffs_GetBlockInfo(dev, blk);
+-		state = bi->blockState;
++		n -= nToCopy;
++		offset += nToCopy;
++		buffer += nToCopy;
++		nDone += nToCopy;
+ 
+-		deleted = 0;
++	}
+ 
+-		/* For each chunk in each block that needs scanning....*/
+-		for (c = 0; !alloc_failed && c < dev->nChunksPerBlock &&
+-		     state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) {
+-			/* Read the tags and decide what to do */
+-			chunk = blk * dev->nChunksPerBlock + c;
++	return nDone;
++}
+ 
+-			result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
+-							&tags);
++int yaffs_do_file_wr(yaffs_obj_t *in, const __u8 *buffer, loff_t offset,
++			int n_bytes, int write_trhrough)
++{
+ 
+-			/* Let's have a good look at this chunk... */
++	int chunk;
++	__u32 start;
++	int nToCopy;
++	int n = n_bytes;
++	int nDone = 0;
++	int nToWriteBack;
++	int startOfWrite = offset;
++	int chunkWritten = 0;
++	__u32 n_bytesRead;
++	__u32 chunkStart;
+ 
+-			if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) {
+-				/* YAFFS1 only...
+-				 * A deleted chunk
+-				 */
+-				deleted++;
+-				dev->nFreeChunks++;
+-				/*T((" %d %d deleted\n",blk,c)); */
+-			} else if (!tags.chunkUsed) {
+-				/* An unassigned chunk in the block
+-				 * This means that either the block is empty or
+-				 * this is the one being allocated from
+-				 */
++	yaffs_dev_t *dev;
+ 
+-				if (c == 0) {
+-					/* We're looking at the first chunk in the block so the block is unused */
+-					state = YAFFS_BLOCK_STATE_EMPTY;
+-					dev->nErasedBlocks++;
+-				} else {
+-					/* this is the block being allocated from */
+-					T(YAFFS_TRACE_SCAN,
+-					  (TSTR
+-					   (" Allocating from %d %d" TENDSTR),
+-					   blk, c));
+-					state = YAFFS_BLOCK_STATE_ALLOCATING;
+-					dev->allocationBlock = blk;
+-					dev->allocationPage = c;
+-					dev->allocationBlockFinder = blk;
+-					/* Set it to here to encourage the allocator to go forth from here. */
++	dev = in->my_dev;
+ 
+-				}
++	while (n > 0 && chunkWritten >= 0) {
++		yaffs_addr_to_chunk(dev, offset, &chunk, &start);
+ 
+-				dev->nFreeChunks += (dev->nChunksPerBlock - c);
+-			} else if (tags.chunkId > 0) {
+-				/* chunkId > 0 so it is a data chunk... */
+-				unsigned int endpos;
+-
+-				yaffs_SetChunkBit(dev, blk, c);
+-				bi->pagesInUse++;
+-
+-				in = yaffs_FindOrCreateObjectByNumber(dev,
+-								      tags.
+-								      objectId,
+-								      YAFFS_OBJECT_TYPE_FILE);
+-				/* PutChunkIntoFile checks for a clash (two data chunks with
+-				 * the same chunkId).
+-				 */
++		if (chunk * dev->data_bytes_per_chunk + start != offset ||
++				start >= dev->data_bytes_per_chunk) {
++			T(YAFFS_TRACE_ERROR, (
++			   TSTR("AddrToChunk of offset %d gives chunk %d start %d"
++			   TENDSTR),
++			   (int)offset, chunk, start));
++		}
++		chunk++; /* File pos to chunk in file offset */
+ 
+-				if (!in)
+-					alloc_failed = 1;
++		/* OK now check for the curveball where the start and end are in
++		 * the same chunk.
++		 */
+ 
+-				if (in) {
+-					if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1))
+-						alloc_failed = 1;
+-				}
++		if ((start + n) < dev->data_bytes_per_chunk) {
++			nToCopy = n;
+ 
+-				endpos =
+-				    (tags.chunkId - 1) * dev->nDataBytesPerChunk +
+-				    tags.byteCount;
+-				if (in &&
+-				    in->variantType == YAFFS_OBJECT_TYPE_FILE
+-				    && in->variant.fileVariant.scannedFileSize <
+-				    endpos) {
+-					in->variant.fileVariant.
+-					    scannedFileSize = endpos;
+-					if (!dev->useHeaderFileSize) {
+-						in->variant.fileVariant.
+-						    fileSize =
+-						    in->variant.fileVariant.
+-						    scannedFileSize;
+-					}
++			/* Now folks, to calculate how many bytes to write back....
++			 * If we're overwriting and not writing to then end of file then
++			 * we need to write back as much as was there before.
++			 */
+ 
+-				}
+-				/* T((" %d %d data %d %d\n",blk,c,tags.objectId,tags.chunkId));   */
+-			} else {
+-				/* chunkId == 0, so it is an ObjectHeader.
+-				 * Thus, we read in the object header and make the object
+-				 */
+-				yaffs_SetChunkBit(dev, blk, c);
+-				bi->pagesInUse++;
++			chunkStart = ((chunk - 1) * dev->data_bytes_per_chunk);
+ 
+-				result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk,
+-								chunkData,
+-								NULL);
+-
+-				oh = (yaffs_ObjectHeader *) chunkData;
+-
+-				in = yaffs_FindObjectByNumber(dev,
+-							      tags.objectId);
+-				if (in && in->variantType != oh->type) {
+-					/* This should not happen, but somehow
+-					 * Wev'e ended up with an objectId that has been reused but not yet
+-					 * deleted, and worse still it has changed type. Delete the old object.
+-					 */
++			if (chunkStart > in->variant.file_variant.file_size)
++				n_bytesRead = 0; /* Past end of file */
++			else
++				n_bytesRead = in->variant.file_variant.file_size - chunkStart;
+ 
+-					yaffs_DeleteObject(in);
++			if (n_bytesRead > dev->data_bytes_per_chunk)
++				n_bytesRead = dev->data_bytes_per_chunk;
+ 
+-					in = 0;
+-				}
++			nToWriteBack =
++			    (n_bytesRead >
++			     (start + n)) ? n_bytesRead : (start + n);
+ 
+-				in = yaffs_FindOrCreateObjectByNumber(dev,
+-								      tags.
+-								      objectId,
+-								      oh->type);
+-
+-				if (!in)
+-					alloc_failed = 1;
+-
+-				if (in && oh->shadowsObject > 0) {
+-
+-					struct yaffs_ShadowFixerStruct *fixer;
+-					fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct));
+-					if (fixer) {
+-						fixer->next = shadowFixerList;
+-						shadowFixerList = fixer;
+-						fixer->objectId = tags.objectId;
+-						fixer->shadowedId = oh->shadowsObject;
+-					}
++			if (nToWriteBack < 0 || nToWriteBack > dev->data_bytes_per_chunk)
++				YBUG();
++
++		} else {
++			nToCopy = dev->data_bytes_per_chunk - start;
++			nToWriteBack = dev->data_bytes_per_chunk;
++		}
++
++		if (nToCopy != dev->data_bytes_per_chunk || dev->param.inband_tags) {
++			/* An incomplete start or end chunk (or maybe both start and end chunk),
++			 * or we're using inband tags, so we want to use the cache buffers.
++			 */
++			if (dev->param.n_caches > 0) {
++				yaffs_cache_t *cache;
++				/* If we can't find the data in the cache, then load the cache */
++				cache = yaffs_find_chunk_cache(in, chunk);
+ 
++				if (!cache
++				    && yaffs_check_alloc_available(dev, 1)) {
++					cache = yaffs_grab_chunk_cache(dev);
++					cache->object = in;
++					cache->chunk_id = chunk;
++					cache->dirty = 0;
++					cache->locked = 0;
++					yaffs_rd_data_obj(in, chunk,
++								      cache->data);
++				} else if (cache &&
++					!cache->dirty &&
++					!yaffs_check_alloc_available(dev, 1)) {
++					/* Drop the cache if it was a read cache item and
++					 * no space check has been made for it.
++					 */
++					 cache = NULL;
+ 				}
+ 
+-				if (in && in->valid) {
+-					/* We have already filled this one. We have a duplicate and need to resolve it. */
++				if (cache) {
++					yaffs_use_cache(dev, cache, 1);
++					cache->locked = 1;
+ 
+-					unsigned existingSerial = in->serial;
+-					unsigned newSerial = tags.serialNumber;
+ 
+-					if (((existingSerial + 1) & 3) == newSerial) {
+-						/* Use new one - destroy the exisiting one */
+-						yaffs_DeleteChunk(dev,
+-								  in->hdrChunk,
+-								  1, __LINE__);
+-						in->valid = 0;
+-					} else {
+-						/* Use existing - destroy this one. */
+-						yaffs_DeleteChunk(dev, chunk, 1,
+-								  __LINE__);
++					memcpy(&cache->data[start], buffer,
++					       nToCopy);
++
++
++					cache->locked = 0;
++					cache->n_bytes = nToWriteBack;
++
++					if (write_trhrough) {
++						chunkWritten =
++						    yaffs_wr_data_obj
++						    (cache->object,
++						     cache->chunk_id,
++						     cache->data, cache->n_bytes,
++						     1);
++						cache->dirty = 0;
+ 					}
++
++				} else {
++					chunkWritten = -1;	/* fail the write */
+ 				}
++			} else {
++				/* An incomplete start or end chunk (or maybe both start and end chunk)
++				 * Read into the local buffer then copy, then copy over and write back.
++				 */
+ 
+-				if (in && !in->valid &&
+-				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
+-				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) {
+-					/* We only load some info, don't fiddle with directory structure */
+-					in->valid = 1;
+-					in->variantType = oh->type;
++				__u8 *localBuffer =
++				    yaffs_get_temp_buffer(dev, __LINE__);
+ 
+-					in->yst_mode = oh->yst_mode;
+-#ifdef CONFIG_YAFFS_WINCE
+-					in->win_atime[0] = oh->win_atime[0];
+-					in->win_ctime[0] = oh->win_ctime[0];
+-					in->win_mtime[0] = oh->win_mtime[0];
+-					in->win_atime[1] = oh->win_atime[1];
+-					in->win_ctime[1] = oh->win_ctime[1];
+-					in->win_mtime[1] = oh->win_mtime[1];
+-#else
+-					in->yst_uid = oh->yst_uid;
+-					in->yst_gid = oh->yst_gid;
+-					in->yst_atime = oh->yst_atime;
+-					in->yst_mtime = oh->yst_mtime;
+-					in->yst_ctime = oh->yst_ctime;
+-					in->yst_rdev = oh->yst_rdev;
+-#endif
+-					in->hdrChunk = chunk;
+-					in->serial = tags.serialNumber;
++				yaffs_rd_data_obj(in, chunk,
++							      localBuffer);
+ 
+-				} else if (in && !in->valid) {
+-					/* we need to load this info */
+ 
+-					in->valid = 1;
+-					in->variantType = oh->type;
+ 
+-					in->yst_mode = oh->yst_mode;
+-#ifdef CONFIG_YAFFS_WINCE
+-					in->win_atime[0] = oh->win_atime[0];
+-					in->win_ctime[0] = oh->win_ctime[0];
+-					in->win_mtime[0] = oh->win_mtime[0];
+-					in->win_atime[1] = oh->win_atime[1];
+-					in->win_ctime[1] = oh->win_ctime[1];
+-					in->win_mtime[1] = oh->win_mtime[1];
+-#else
+-					in->yst_uid = oh->yst_uid;
+-					in->yst_gid = oh->yst_gid;
+-					in->yst_atime = oh->yst_atime;
+-					in->yst_mtime = oh->yst_mtime;
+-					in->yst_ctime = oh->yst_ctime;
+-					in->yst_rdev = oh->yst_rdev;
+-#endif
+-					in->hdrChunk = chunk;
+-					in->serial = tags.serialNumber;
++				memcpy(&localBuffer[start], buffer, nToCopy);
+ 
+-					yaffs_SetObjectName(in, oh->name);
+-					in->dirty = 0;
++				chunkWritten =
++				    yaffs_wr_data_obj(in, chunk,
++								 localBuffer,
++								 nToWriteBack,
++								 0);
+ 
+-					/* directory stuff...
+-					 * hook up to parent
+-					 */
++				yaffs_release_temp_buffer(dev, localBuffer,
++							__LINE__);
+ 
+-					parent =
+-					    yaffs_FindOrCreateObjectByNumber
+-					    (dev, oh->parentObjectId,
+-					     YAFFS_OBJECT_TYPE_DIRECTORY);
+-					if (!parent)
+-						alloc_failed = 1;
+-					if (parent && parent->variantType ==
+-					    YAFFS_OBJECT_TYPE_UNKNOWN) {
+-						/* Set up as a directory */
+-						parent->variantType =
+-							YAFFS_OBJECT_TYPE_DIRECTORY;
+-						YINIT_LIST_HEAD(&parent->variant.
+-								directoryVariant.
+-								children);
+-					} else if (!parent || parent->variantType !=
+-						   YAFFS_OBJECT_TYPE_DIRECTORY) {
+-						/* Hoosterman, another problem....
+-						 * We're trying to use a non-directory as a directory
+-						 */
++			}
+ 
+-						T(YAFFS_TRACE_ERROR,
+-						  (TSTR
+-						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
+-						    TENDSTR)));
+-						parent = dev->lostNFoundDir;
+-					}
++		} else {
++			/* A full chunk. Write directly from the supplied buffer. */
+ 
+-					yaffs_AddObjectToDirectory(parent, in);
+ 
+-					if (0 && (parent == dev->deletedDir ||
+-						  parent == dev->unlinkedDir)) {
+-						in->deleted = 1;	/* If it is unlinked at start up then it wants deleting */
+-						dev->nDeletedFiles++;
+-					}
+-					/* Note re hardlinks.
+-					 * Since we might scan a hardlink before its equivalent object is scanned
+-					 * we put them all in a list.
+-					 * After scanning is complete, we should have all the objects, so we run through this
+-					 * list and fix up all the chains.
+-					 */
+ 
+-					switch (in->variantType) {
+-					case YAFFS_OBJECT_TYPE_UNKNOWN:
+-						/* Todo got a problem */
+-						break;
+-					case YAFFS_OBJECT_TYPE_FILE:
+-						if (dev->useHeaderFileSize)
+-
+-							in->variant.fileVariant.
+-							    fileSize =
+-							    oh->fileSize;
+-
+-						break;
+-					case YAFFS_OBJECT_TYPE_HARDLINK:
+-						in->variant.hardLinkVariant.
+-							equivalentObjectId =
+-							oh->equivalentObjectId;
+-						in->hardLinks.next =
+-							(struct ylist_head *)
+-							hardList;
+-						hardList = in;
+-						break;
+-					case YAFFS_OBJECT_TYPE_DIRECTORY:
+-						/* Do nothing */
+-						break;
+-					case YAFFS_OBJECT_TYPE_SPECIAL:
+-						/* Do nothing */
+-						break;
+-					case YAFFS_OBJECT_TYPE_SYMLINK:
+-						in->variant.symLinkVariant.alias =
+-						    yaffs_CloneString(oh->alias);
+-						if (!in->variant.symLinkVariant.alias)
+-							alloc_failed = 1;
+-						break;
+-					}
++			chunkWritten =
++			    yaffs_wr_data_obj(in, chunk, buffer,
++							 dev->data_bytes_per_chunk,
++							 0);
+ 
+-/*
+-					if (parent == dev->deletedDir) {
+-						yaffs_DestroyObject(in);
+-						bi->hasShrinkHeader = 1;
+-					}
+-*/
+-				}
+-			}
++			/* Since we've overwritten the cached data, we better invalidate it. */
++			yaffs_invalidate_chunk_cache(in, chunk);
+ 		}
+ 
+-		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
+-			/* If we got this far while scanning, then the block is fully allocated.*/
+-			state = YAFFS_BLOCK_STATE_FULL;
++		if (chunkWritten >= 0) {
++			n -= nToCopy;
++			offset += nToCopy;
++			buffer += nToCopy;
++			nDone += nToCopy;
+ 		}
+ 
+-		bi->blockState = state;
++	}
+ 
+-		/* Now let's see if it was dirty */
+-		if (bi->pagesInUse == 0 &&
+-		    !bi->hasShrinkHeader &&
+-		    bi->blockState == YAFFS_BLOCK_STATE_FULL) {
+-			yaffs_BlockBecameDirty(dev, blk);
+-		}
++	/* Update file object */
+ 
+-	}
++	if ((startOfWrite + nDone) > in->variant.file_variant.file_size)
++		in->variant.file_variant.file_size = (startOfWrite + nDone);
+ 
++	in->dirty = 1;
+ 
+-	/* Ok, we've done all the scanning.
+-	 * Fix up the hard link chains.
+-	 * We should now have scanned all the objects, now it's time to add these
+-	 * hardlinks.
+-	 */
++	return nDone;
++}
+ 
+-	yaffs_HardlinkFixup(dev, hardList);
++int yaffs_wr_file(yaffs_obj_t *in, const __u8 *buffer, loff_t offset,
++			int n_bytes, int write_trhrough)
++{
++	yaffs2_handle_hole(in,offset);
++	return yaffs_do_file_wr(in,buffer,offset,n_bytes,write_trhrough);
++}
+ 
+-	/* Fix up any shadowed objects */
+-	{
+-		struct yaffs_ShadowFixerStruct *fixer;
+-		yaffs_Object *obj;
+-
+-		while (shadowFixerList) {
+-			fixer = shadowFixerList;
+-			shadowFixerList = fixer->next;
+-			/* Complete the rename transaction by deleting the shadowed object
+-			 * then setting the object header to unshadowed.
+-			 */
+-			obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId);
+-			if (obj)
+-				yaffs_DeleteObject(obj);
+ 
+-			obj = yaffs_FindObjectByNumber(dev, fixer->objectId);
+ 
+-			if (obj)
+-				yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0);
++/* ---------------------- File resizing stuff ------------------ */
+ 
+-			YFREE(fixer);
+-		}
+-	}
++static void yaffs_prune_chunks(yaffs_obj_t *in, int new_size)
++{
+ 
+-	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
++	yaffs_dev_t *dev = in->my_dev;
++	int oldFileSize = in->variant.file_variant.file_size;
+ 
+-	if (alloc_failed)
+-		return YAFFS_FAIL;
++	int lastDel = 1 + (oldFileSize - 1) / dev->data_bytes_per_chunk;
++
++	int startDel = 1 + (new_size + dev->data_bytes_per_chunk - 1) /
++	    dev->data_bytes_per_chunk;
++	int i;
++	int chunk_id;
+ 
+-	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR)));
++	/* Delete backwards so that we don't end up with holes if
++	 * power is lost part-way through the operation.
++	 */
++	for (i = lastDel; i >= startDel; i--) {
++		/* NB this could be optimised somewhat,
++		 * eg. could retrieve the tags and write them without
++		 * using yaffs_chunk_del
++		 */
+ 
++		chunk_id = yaffs_find_del_file_chunk(in, i, NULL);
++		if (chunk_id > 0) {
++			if (chunk_id <
++			    (dev->internal_start_block * dev->param.chunks_per_block)
++			    || chunk_id >=
++			    ((dev->internal_end_block +
++			      1) * dev->param.chunks_per_block)) {
++				T(YAFFS_TRACE_ALWAYS,
++				  (TSTR("Found daft chunk_id %d for %d" TENDSTR),
++				   chunk_id, i));
++			} else {
++				in->n_data_chunks--;
++				yaffs_chunk_del(dev, chunk_id, 1, __LINE__);
++			}
++		}
++	}
+ 
+-	return YAFFS_OK;
+ }
+ 
+-static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in)
+-{
+-	__u8 *chunkData;
+-	yaffs_ObjectHeader *oh;
+-	yaffs_Device *dev;
+-	yaffs_ExtendedTags tags;
+-	int result;
+-	int alloc_failed = 0;
+ 
+-	if (!in)
+-		return;
++void yaffs_resize_file_down( yaffs_obj_t *obj, loff_t new_size)
++{
++	int newFullChunks;
++	__u32 new_sizeOfPartialChunk;
++	yaffs_dev_t *dev = obj->my_dev;
+ 
+-	dev = in->myDev;
++	yaffs_addr_to_chunk(dev, new_size, &newFullChunks, &new_sizeOfPartialChunk);
+ 
+-#if 0
+-	T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR),
+-		in->objectId,
+-		in->lazyLoaded ? "not yet" : "already"));
+-#endif
++	yaffs_prune_chunks(obj, new_size);
+ 
+-	if (in->lazyLoaded && in->hdrChunk > 0) {
+-		in->lazyLoaded = 0;
+-		chunkData = yaffs_GetTempBuffer(dev, __LINE__);
++	if (new_sizeOfPartialChunk != 0) {
++		int lastChunk = 1 + newFullChunks;
++		__u8 *localBuffer = yaffs_get_temp_buffer(dev, __LINE__);
+ 
+-		result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags);
+-		oh = (yaffs_ObjectHeader *) chunkData;
++		/* Got to read and rewrite the last chunk with its new size and zero pad */
++		yaffs_rd_data_obj(obj, lastChunk, localBuffer);
++		memset(localBuffer + new_sizeOfPartialChunk, 0,
++			dev->data_bytes_per_chunk - new_sizeOfPartialChunk);
+ 
+-		in->yst_mode = oh->yst_mode;
+-#ifdef CONFIG_YAFFS_WINCE
+-		in->win_atime[0] = oh->win_atime[0];
+-		in->win_ctime[0] = oh->win_ctime[0];
+-		in->win_mtime[0] = oh->win_mtime[0];
+-		in->win_atime[1] = oh->win_atime[1];
+-		in->win_ctime[1] = oh->win_ctime[1];
+-		in->win_mtime[1] = oh->win_mtime[1];
+-#else
+-		in->yst_uid = oh->yst_uid;
+-		in->yst_gid = oh->yst_gid;
+-		in->yst_atime = oh->yst_atime;
+-		in->yst_mtime = oh->yst_mtime;
+-		in->yst_ctime = oh->yst_ctime;
+-		in->yst_rdev = oh->yst_rdev;
++		yaffs_wr_data_obj(obj, lastChunk, localBuffer,
++					     new_sizeOfPartialChunk, 1);
+ 
+-#endif
+-		yaffs_SetObjectName(in, oh->name);
++		yaffs_release_temp_buffer(dev, localBuffer, __LINE__);
++	}
+ 
+-		if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
+-			in->variant.symLinkVariant.alias =
+-						    yaffs_CloneString(oh->alias);
+-			if (!in->variant.symLinkVariant.alias)
+-				alloc_failed = 1; /* Not returned to caller */
+-		}
++	obj->variant.file_variant.file_size = new_size;
+ 
+-		yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
+-	}
++	yaffs_prune_tree(dev, &obj->variant.file_variant);
+ }
+ 
+-static int yaffs_ScanBackwards(yaffs_Device *dev)
+-{
+-	yaffs_ExtendedTags tags;
+-	int blk;
+-	int blockIterator;
+-	int startIterator;
+-	int endIterator;
+-	int nBlocksToScan = 0;
+-
+-	int chunk;
+-	int result;
+-	int c;
+-	int deleted;
+-	yaffs_BlockState state;
+-	yaffs_Object *hardList = NULL;
+-	yaffs_BlockInfo *bi;
+-	__u32 sequenceNumber;
+-	yaffs_ObjectHeader *oh;
+-	yaffs_Object *in;
+-	yaffs_Object *parent;
+-	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
+-	int itsUnlinked;
+-	__u8 *chunkData;
+ 
+-	int fileSize;
+-	int isShrink;
+-	int foundChunksInBlock;
+-	int equivalentObjectId;
+-	int alloc_failed = 0;
++int yaffs_resize_file(yaffs_obj_t *in, loff_t new_size)
++{
++	yaffs_dev_t *dev = in->my_dev;
++	int oldFileSize = in->variant.file_variant.file_size;
+ 
++	yaffs_flush_file_cache(in);
++	yaffs_invalidate_whole_cache(in);
+ 
+-	yaffs_BlockIndex *blockIndex = NULL;
+-	int altBlockIndex = 0;
++	yaffs_check_gc(dev,0);
+ 
+-	if (!dev->isYaffs2) {
+-		T(YAFFS_TRACE_SCAN,
+-		  (TSTR("yaffs_ScanBackwards is only for YAFFS2!" TENDSTR)));
++	if (in->variant_type != YAFFS_OBJECT_TYPE_FILE)
+ 		return YAFFS_FAIL;
+-	}
+ 
+-	T(YAFFS_TRACE_SCAN,
+-	  (TSTR
+-	   ("yaffs_ScanBackwards starts  intstartblk %d intendblk %d..."
+-	    TENDSTR), dev->internalStartBlock, dev->internalEndBlock));
++	if (new_size == oldFileSize)
++		return YAFFS_OK;
++		
++	if(new_size > oldFileSize){
++		yaffs2_handle_hole(in,new_size);
++		in->variant.file_variant.file_size = new_size;
++	} else {
++		/* new_size < oldFileSize */ 
++		yaffs_resize_file_down(in, new_size);
++	} 
+ 
++	/* Write a new object header to reflect the resize.
++	 * show we've shrunk the file, if need be
++	 * Do this only if the file is not in the deleted directories
++	 * and is not shadowed.
++	 */
++	if (in->parent &&
++	    !in->is_shadowed &&
++	    in->parent->obj_id != YAFFS_OBJECTID_UNLINKED &&
++	    in->parent->obj_id != YAFFS_OBJECTID_DELETED)
++		yaffs_update_oh(in, NULL, 0, 0, 0, NULL);
+ 
+-	dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
+ 
+-	blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
++	return YAFFS_OK;
++}
+ 
+-	if (!blockIndex) {
+-		blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex));
+-		altBlockIndex = 1;
+-	}
++loff_t yaffs_get_file_size(yaffs_obj_t *obj)
++{
++	YCHAR *alias = NULL;
++	obj = yaffs_get_equivalent_obj(obj);
+ 
+-	if (!blockIndex) {
+-		T(YAFFS_TRACE_SCAN,
+-		  (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR)));
+-		return YAFFS_FAIL;
++	switch (obj->variant_type) {
++	case YAFFS_OBJECT_TYPE_FILE:
++		return obj->variant.file_variant.file_size;
++	case YAFFS_OBJECT_TYPE_SYMLINK:
++		alias = obj->variant.symlink_variant.alias;
++		if(!alias)
++			return 0;
++		return yaffs_strnlen(alias,YAFFS_MAX_ALIAS_LENGTH);
++	default:
++		return 0;
+ 	}
++}
+ 
+-	dev->blocksInCheckpoint = 0;
+-
+-	chunkData = yaffs_GetTempBuffer(dev, __LINE__);
+-
+-	/* Scan all the blocks to determine their state */
+-	for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) {
+-		bi = yaffs_GetBlockInfo(dev, blk);
+-		yaffs_ClearChunkBits(dev, blk);
+-		bi->pagesInUse = 0;
+-		bi->softDeletions = 0;
+-
+-		yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber);
+ 
+-		bi->blockState = state;
+-		bi->sequenceNumber = sequenceNumber;
+ 
+-		if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA)
+-			bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT;
+-		if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK)
+-			bi->blockState = state = YAFFS_BLOCK_STATE_DEAD;
++int yaffs_flush_file(yaffs_obj_t *in, int update_time, int data_sync)
++{
++	int retVal;
++	if (in->dirty) {
++		yaffs_flush_file_cache(in);
++		if(data_sync) /* Only sync data */
++			retVal=YAFFS_OK;
++		else {
++			if (update_time) {
++#ifdef CONFIG_YAFFS_WINCE
++				yfsd_win_file_time_now(in->win_mtime);
++#else
+ 
+-		T(YAFFS_TRACE_SCAN_DEBUG,
+-		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
+-		   state, sequenceNumber));
++				in->yst_mtime = Y_CURRENT_TIME;
+ 
++#endif
++			}
+ 
+-		if (state == YAFFS_BLOCK_STATE_CHECKPOINT) {
+-			dev->blocksInCheckpoint++;
++			retVal = (yaffs_update_oh(in, NULL, 0, 0, 0, NULL) >=
++				0) ? YAFFS_OK : YAFFS_FAIL;
++		}
++	} else {
++		retVal = YAFFS_OK;
++	}
+ 
+-		} else if (state == YAFFS_BLOCK_STATE_DEAD) {
+-			T(YAFFS_TRACE_BAD_BLOCKS,
+-			  (TSTR("block %d is bad" TENDSTR), blk));
+-		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
+-			T(YAFFS_TRACE_SCAN_DEBUG,
+-			  (TSTR("Block empty " TENDSTR)));
+-			dev->nErasedBlocks++;
+-			dev->nFreeChunks += dev->nChunksPerBlock;
+-		} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
++	return retVal;
+ 
+-			/* Determine the highest sequence number */
+-			if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
+-			    sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
++}
+ 
+-				blockIndex[nBlocksToScan].seq = sequenceNumber;
+-				blockIndex[nBlocksToScan].block = blk;
++static int yaffs_generic_obj_del(yaffs_obj_t *in)
++{
+ 
+-				nBlocksToScan++;
++	/* First off, invalidate the file's data in the cache, without flushing. */
++	yaffs_invalidate_whole_cache(in);
+ 
+-				if (sequenceNumber >= dev->sequenceNumber)
+-					dev->sequenceNumber = sequenceNumber;
+-			} else {
+-				/* TODO: Nasty sequence number! */
+-				T(YAFFS_TRACE_SCAN,
+-				  (TSTR
+-				   ("Block scanning block %d has bad sequence number %d"
+-				    TENDSTR), blk, sequenceNumber));
++	if (in->my_dev->param.is_yaffs2 && (in->parent != in->my_dev->del_dir)) {
++		/* Move to the unlinked directory so we have a record that it was deleted. */
++		yaffs_change_obj_name(in, in->my_dev->del_dir, _Y("deleted"), 0, 0);
+ 
+-			}
+-		}
+ 	}
+ 
+-	T(YAFFS_TRACE_SCAN,
+-	(TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan));
++	yaffs_remove_obj_from_dir(in);
++	yaffs_chunk_del(in->my_dev, in->hdr_chunk, 1, __LINE__);
++	in->hdr_chunk = 0;
+ 
++	yaffs_free_obj(in);
++	return YAFFS_OK;
+ 
++}
+ 
+-	YYIELD();
++/* yaffs_del_file deletes the whole file data
++ * and the inode associated with the file.
++ * It does not delete the links associated with the file.
++ */
++static int yaffs_unlink_file_if_needed(yaffs_obj_t *in)
++{
+ 
+-	/* Sort the blocks */
+-#ifndef CONFIG_YAFFS_USE_OWN_SORT
+-	{
+-		/* Use qsort now. */
+-		yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp);
+-	}
+-#else
+-	{
+-		/* Dungy old bubble sort... */
++	int retVal;
++	int immediateDeletion = 0;
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-		yaffs_BlockIndex temp;
+-		int i;
+-		int j;
++	if (!in->my_inode)
++		immediateDeletion = 1;
+ 
+-		for (i = 0; i < nBlocksToScan; i++)
+-			for (j = i + 1; j < nBlocksToScan; j++)
+-				if (blockIndex[i].seq > blockIndex[j].seq) {
+-					temp = blockIndex[j];
+-					blockIndex[j] = blockIndex[i];
+-					blockIndex[i] = temp;
+-				}
++	if (immediateDeletion) {
++		retVal =
++		    yaffs_change_obj_name(in, in->my_dev->del_dir,
++					   _Y("deleted"), 0, 0);
++		T(YAFFS_TRACE_TRACING,
++		  (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
++		   in->obj_id));
++		in->deleted = 1;
++		in->my_dev->n_deleted_files++;
++		if (dev->param.disable_soft_del || dev->param.is_yaffs2)
++			yaffs_resize_file(in, 0);
++		yaffs_soft_del_file(in);
++	} else {
++		retVal =
++		    yaffs_change_obj_name(in, in->my_dev->unlinked_dir,
++					   _Y("unlinked"), 0, 0);
+ 	}
+-#endif
+ 
+-	YYIELD();
+ 
+-	T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
++	return retVal;
++}
+ 
+-	/* Now scan the blocks looking at the data. */
+-	startIterator = 0;
+-	endIterator = nBlocksToScan - 1;
+-	T(YAFFS_TRACE_SCAN_DEBUG,
+-	  (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan));
++int yaffs_del_file(yaffs_obj_t *in)
++{
++	int retVal = YAFFS_OK;
++	int deleted; /* Need to cache value on stack if in is freed */
++	yaffs_dev_t *dev = in->my_dev;
+ 
+-	/* For each block.... backwards */
+-	for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator;
+-			blockIterator--) {
+-		/* Cooperative multitasking! This loop can run for so
+-		   long that watchdog timers expire. */
+-		YYIELD();
++	if (dev->param.disable_soft_del || dev->param.is_yaffs2)
++		yaffs_resize_file(in, 0);
+ 
+-		/* get the block to scan in the correct order */
+-		blk = blockIndex[blockIterator].block;
++	if (in->n_data_chunks > 0) {
++		/* Use soft deletion if there is data in the file.
++		 * That won't be the case if it has been resized to zero.
++		 */
++		if (!in->unlinked)
++			retVal = yaffs_unlink_file_if_needed(in);
+ 
+-		bi = yaffs_GetBlockInfo(dev, blk);
++		deleted = in->deleted;
+ 
++		if (retVal == YAFFS_OK && in->unlinked && !in->deleted) {
++			in->deleted = 1;
++			deleted = 1;
++			in->my_dev->n_deleted_files++;
++			yaffs_soft_del_file(in);
++		}
++		return deleted ? YAFFS_OK : YAFFS_FAIL;
++	} else {
++		/* The file has no data chunks so we toss it immediately */
++		yaffs_free_tnode(in->my_dev, in->variant.file_variant.top);
++		in->variant.file_variant.top = NULL;
++		yaffs_generic_obj_del(in);
+ 
+-		state = bi->blockState;
++		return YAFFS_OK;
++	}
++}
+ 
+-		deleted = 0;
++static int yaffs_is_non_empty_dir(yaffs_obj_t *obj)
++{
++	return (obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY) &&
++		!(ylist_empty(&obj->variant.dir_variant.children));
++}
+ 
+-		/* For each chunk in each block that needs scanning.... */
+-		foundChunksInBlock = 0;
+-		for (c = dev->nChunksPerBlock - 1;
+-		     !alloc_failed && c >= 0 &&
+-		     (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
+-		      state == YAFFS_BLOCK_STATE_ALLOCATING); c--) {
+-			/* Scan backwards...
+-			 * Read the tags and decide what to do
+-			 */
++static int yaffs_del_dir(yaffs_obj_t *obj)
++{
++	/* First check that the directory is empty. */
++	if (yaffs_is_non_empty_dir(obj))
++		return YAFFS_FAIL;
+ 
+-			chunk = blk * dev->nChunksPerBlock + c;
++	return yaffs_generic_obj_del(obj);
++}
+ 
+-			result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
+-							&tags);
++static int yaffs_del_symlink(yaffs_obj_t *in)
++{
++	if(in->variant.symlink_variant.alias)
++		YFREE(in->variant.symlink_variant.alias);
++	in->variant.symlink_variant.alias=NULL;
+ 
+-			/* Let's have a good look at this chunk... */
++	return yaffs_generic_obj_del(in);
++}
+ 
+-			if (!tags.chunkUsed) {
+-				/* An unassigned chunk in the block.
+-				 * If there are used chunks after this one, then
+-				 * it is a chunk that was skipped due to failing the erased
+-				 * check. Just skip it so that it can be deleted.
+-				 * But, more typically, We get here when this is an unallocated
+-				 * chunk and his means that either the block is empty or
+-				 * this is the one being allocated from
+-				 */
++static int yaffs_del_link(yaffs_obj_t *in)
++{
++	/* remove this hardlink from the list assocaited with the equivalent
++	 * object
++	 */
++	ylist_del_init(&in->hard_links);
++	return yaffs_generic_obj_del(in);
++}
+ 
+-				if (foundChunksInBlock) {
+-					/* This is a chunk that was skipped due to failing the erased check */
+-				} else if (c == 0) {
+-					/* We're looking at the first chunk in the block so the block is unused */
+-					state = YAFFS_BLOCK_STATE_EMPTY;
+-					dev->nErasedBlocks++;
+-				} else {
+-					if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
+-					    state == YAFFS_BLOCK_STATE_ALLOCATING) {
+-						if (dev->sequenceNumber == bi->sequenceNumber) {
+-							/* this is the block being allocated from */
+-
+-							T(YAFFS_TRACE_SCAN,
+-							  (TSTR
+-							   (" Allocating from %d %d"
+-							    TENDSTR), blk, c));
+-
+-							state = YAFFS_BLOCK_STATE_ALLOCATING;
+-							dev->allocationBlock = blk;
+-							dev->allocationPage = c;
+-							dev->allocationBlockFinder = blk;
+-						} else {
+-							/* This is a partially written block that is not
+-							 * the current allocation block. This block must have
+-							 * had a write failure, so set up for retirement.
+-							 */
+-
+-							 /* bi->needsRetiring = 1; ??? TODO */
+-							 bi->gcPrioritise = 1;
+-
+-							 T(YAFFS_TRACE_ALWAYS,
+-							 (TSTR("Partially written block %d detected" TENDSTR),
+-							 blk));
+-						}
+-					}
+-				}
++int yaffs_del_obj(yaffs_obj_t *obj)
++{
++int retVal = -1;
++	switch (obj->variant_type) {
++	case YAFFS_OBJECT_TYPE_FILE:
++		retVal = yaffs_del_file(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_DIRECTORY:
++		if(!ylist_empty(&obj->variant.dir_variant.dirty)){
++			T(YAFFS_TRACE_BACKGROUND, (TSTR("Remove object %d from dirty directories" TENDSTR),obj->obj_id));
++			ylist_del_init(&obj->variant.dir_variant.dirty);
++		}
++		return yaffs_del_dir(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_SYMLINK:
++		retVal = yaffs_del_symlink(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_HARDLINK:
++		retVal = yaffs_del_link(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_SPECIAL:
++		retVal = yaffs_generic_obj_del(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_UNKNOWN:
++		retVal = 0;
++		break;		/* should not happen. */
++	}
+ 
+-				dev->nFreeChunks++;
++	return retVal;
++}
+ 
+-			} else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) {
+-				T(YAFFS_TRACE_SCAN,
+-				  (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR),
+-				  blk, c));
+-
+-				  dev->nFreeChunks++;
+-
+-			} else if (tags.chunkId > 0) {
+-				/* chunkId > 0 so it is a data chunk... */
+-				unsigned int endpos;
+-				__u32 chunkBase =
+-				    (tags.chunkId - 1) * dev->nDataBytesPerChunk;
+-
+-				foundChunksInBlock = 1;
+-
+-
+-				yaffs_SetChunkBit(dev, blk, c);
+-				bi->pagesInUse++;
+-
+-				in = yaffs_FindOrCreateObjectByNumber(dev,
+-								      tags.
+-								      objectId,
+-								      YAFFS_OBJECT_TYPE_FILE);
+-				if (!in) {
+-					/* Out of memory */
+-					alloc_failed = 1;
+-				}
++static int yaffs_unlink_worker(yaffs_obj_t *obj)
++{
+ 
+-				if (in &&
+-				    in->variantType == YAFFS_OBJECT_TYPE_FILE
+-				    && chunkBase <
+-				    in->variant.fileVariant.shrinkSize) {
+-					/* This has not been invalidated by a resize */
+-					if (!yaffs_PutChunkIntoFile(in, tags.chunkId,
+-							       chunk, -1)) {
+-						alloc_failed = 1;
+-					}
++	int immediateDeletion = 0;
+ 
+-					/* File size is calculated by looking at the data chunks if we have not
+-					 * seen an object header yet. Stop this practice once we find an object header.
+-					 */
+-					endpos =
+-					    (tags.chunkId -
+-					     1) * dev->nDataBytesPerChunk +
+-					    tags.byteCount;
+-
+-					if (!in->valid &&	/* have not got an object header yet */
+-					    in->variant.fileVariant.
+-					    scannedFileSize < endpos) {
+-						in->variant.fileVariant.
+-						    scannedFileSize = endpos;
+-						in->variant.fileVariant.
+-						    fileSize =
+-						    in->variant.fileVariant.
+-						    scannedFileSize;
+-					}
++	if (!obj->my_inode)
++		immediateDeletion = 1;
+ 
+-				} else if (in) {
+-					/* This chunk has been invalidated by a resize, so delete */
+-					yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
++	if(obj)
++		yaffs_update_parent(obj->parent);
+ 
+-				}
+-			} else {
+-				/* chunkId == 0, so it is an ObjectHeader.
+-				 * Thus, we read in the object header and make the object
+-				 */
+-				foundChunksInBlock = 1;
++	if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) {
++		return yaffs_del_link(obj);
++	} else if (!ylist_empty(&obj->hard_links)) {
++		/* Curve ball: We're unlinking an object that has a hardlink.
++		 *
++		 * This problem arises because we are not strictly following
++		 * The Linux link/inode model.
++		 *
++		 * We can't really delete the object.
++		 * Instead, we do the following:
++		 * - Select a hardlink.
++		 * - Unhook it from the hard links
++		 * - Move it from its parent directory (so that the rename can work)
++		 * - Rename the object to the hardlink's name.
++		 * - Delete the hardlink
++		 */
+ 
+-				yaffs_SetChunkBit(dev, blk, c);
+-				bi->pagesInUse++;
++		yaffs_obj_t *hl;
++		yaffs_obj_t *parent;
++		int retVal;
++		YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
+ 
+-				oh = NULL;
+-				in = NULL;
++		hl = ylist_entry(obj->hard_links.next, yaffs_obj_t, hard_links);
+ 
+-				if (tags.extraHeaderInfoAvailable) {
+-					in = yaffs_FindOrCreateObjectByNumber
+-					    (dev, tags.objectId,
+-					     tags.extraObjectType);
+-					if (!in)
+-						alloc_failed = 1;
+-				}
++		yaffs_get_obj_name(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
++		parent = hl->parent;
+ 
+-				if (!in ||
+-#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
+-				    !in->valid ||
+-#endif
+-				    tags.extraShadows ||
+-				    (!in->valid &&
+-				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
+-				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) {
+-
+-					/* If we don't have  valid info then we need to read the chunk
+-					 * TODO In future we can probably defer reading the chunk and
+-					 * living with invalid data until needed.
+-					 */
++		ylist_del_init(&hl->hard_links);
+ 
+-					result = yaffs_ReadChunkWithTagsFromNAND(dev,
+-									chunk,
+-									chunkData,
+-									NULL);
+-
+-					oh = (yaffs_ObjectHeader *) chunkData;
+-
+-					if (dev->inbandTags) {
+-						/* Fix up the header if they got corrupted by inband tags */
+-						oh->shadowsObject = oh->inbandShadowsObject;
+-						oh->isShrink = oh->inbandIsShrink;
+-					}
++ 		yaffs_add_obj_to_dir(obj->my_dev->unlinked_dir, hl);
+ 
+-					if (!in) {
+-						in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type);
+-						if (!in)
+-							alloc_failed = 1;
+-					}
++		retVal = yaffs_change_obj_name(obj,parent, name, 0, 0);
+ 
+-				}
++		if (retVal == YAFFS_OK)
++			retVal = yaffs_generic_obj_del(hl);
+ 
+-				if (!in) {
+-					/* TODO Hoosterman we have a problem! */
+-					T(YAFFS_TRACE_ERROR,
+-					  (TSTR
+-					   ("yaffs tragedy: Could not make object for object  %d at chunk %d during scan"
+-					    TENDSTR), tags.objectId, chunk));
+-					continue;
+-				}
++		return retVal;
+ 
+-				if (in->valid) {
+-					/* We have already filled this one.
+-					 * We have a duplicate that will be discarded, but
+-					 * we first have to suck out resize info if it is a file.
+-					 */
++	} else if (immediateDeletion) {
++		switch (obj->variant_type) {
++		case YAFFS_OBJECT_TYPE_FILE:
++			return yaffs_del_file(obj);
++			break;
++		case YAFFS_OBJECT_TYPE_DIRECTORY:
++			ylist_del_init(&obj->variant.dir_variant.dirty);
++			return yaffs_del_dir(obj);
++			break;
++		case YAFFS_OBJECT_TYPE_SYMLINK:
++			return yaffs_del_symlink(obj);
++			break;
++		case YAFFS_OBJECT_TYPE_SPECIAL:
++			return yaffs_generic_obj_del(obj);
++			break;
++		case YAFFS_OBJECT_TYPE_HARDLINK:
++		case YAFFS_OBJECT_TYPE_UNKNOWN:
++		default:
++			return YAFFS_FAIL;
++		}
++	} else if(yaffs_is_non_empty_dir(obj))
++		return YAFFS_FAIL;
++	else
++		return yaffs_change_obj_name(obj, obj->my_dev->unlinked_dir,
++					   _Y("unlinked"), 0, 0);
++}
+ 
+-					if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) &&
+-					     ((oh &&
+-					       oh->type == YAFFS_OBJECT_TYPE_FILE) ||
+-					      (tags.extraHeaderInfoAvailable  &&
+-					       tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) {
+-						__u32 thisSize =
+-						    (oh) ? oh->fileSize : tags.
+-						    extraFileLength;
+-						__u32 parentObjectId =
+-						    (oh) ? oh->
+-						    parentObjectId : tags.
+-						    extraParentObjectId;
+-
+-
+-						isShrink =
+-						    (oh) ? oh->isShrink : tags.
+-						    extraIsShrinkHeader;
+ 
+-						/* If it is deleted (unlinked at start also means deleted)
+-						 * we treat the file size as being zeroed at this point.
+-						 */
+-						if (parentObjectId ==
+-						    YAFFS_OBJECTID_DELETED
+-						    || parentObjectId ==
+-						    YAFFS_OBJECTID_UNLINKED) {
+-							thisSize = 0;
+-							isShrink = 1;
+-						}
++static int yaffs_unlink_obj(yaffs_obj_t *obj)
++{
+ 
+-						if (isShrink &&
+-						    in->variant.fileVariant.
+-						    shrinkSize > thisSize) {
+-							in->variant.fileVariant.
+-							    shrinkSize =
+-							    thisSize;
+-						}
++	if (obj && obj->unlink_allowed)
++		return yaffs_unlink_worker(obj);
+ 
+-						if (isShrink)
+-							bi->hasShrinkHeader = 1;
++	return YAFFS_FAIL;
+ 
+-					}
+-					/* Use existing - destroy this one. */
+-					yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
++}
++int yaffs_unlinker(yaffs_obj_t *dir, const YCHAR *name)
++{
++	yaffs_obj_t *obj;
+ 
+-				}
++	obj = yaffs_find_by_name(dir, name);
++	return yaffs_unlink_obj(obj);
++}
+ 
+-				if (!in->valid && in->variantType !=
+-				    (oh ? oh->type : tags.extraObjectType))
+-					T(YAFFS_TRACE_ERROR, (
+-						TSTR("yaffs tragedy: Bad object type, "
+-					    TCONT("%d != %d, for object %d at chunk ")
+-					    TCONT("%d during scan")
+-						TENDSTR), oh ?
+-					    oh->type : tags.extraObjectType,
+-					    in->variantType, tags.objectId,
+-					    chunk));
+-
+-				if (!in->valid &&
+-				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
+-				     tags.objectId ==
+-				     YAFFS_OBJECTID_LOSTNFOUND)) {
+-					/* We only load some info, don't fiddle with directory structure */
+-					in->valid = 1;
++/*----------------------- Initialisation Scanning ---------------------- */
+ 
+-					if (oh) {
+-						in->variantType = oh->type;
++void yaffs_handle_shadowed_obj(yaffs_dev_t *dev, int obj_id,
++				int backward_scanning)
++{
++	yaffs_obj_t *obj;
+ 
+-						in->yst_mode = oh->yst_mode;
+-#ifdef CONFIG_YAFFS_WINCE
+-						in->win_atime[0] = oh->win_atime[0];
+-						in->win_ctime[0] = oh->win_ctime[0];
+-						in->win_mtime[0] = oh->win_mtime[0];
+-						in->win_atime[1] = oh->win_atime[1];
+-						in->win_ctime[1] = oh->win_ctime[1];
+-						in->win_mtime[1] = oh->win_mtime[1];
+-#else
+-						in->yst_uid = oh->yst_uid;
+-						in->yst_gid = oh->yst_gid;
+-						in->yst_atime = oh->yst_atime;
+-						in->yst_mtime = oh->yst_mtime;
+-						in->yst_ctime = oh->yst_ctime;
+-						in->yst_rdev = oh->yst_rdev;
++	if (!backward_scanning) {
++		/* Handle YAFFS1 forward scanning case
++		 * For YAFFS1 we always do the deletion
++		 */
+ 
+-#endif
+-					} else {
+-						in->variantType = tags.extraObjectType;
+-						in->lazyLoaded = 1;
+-					}
++	} else {
++		/* Handle YAFFS2 case (backward scanning)
++		 * If the shadowed object exists then ignore.
++		 */
++		obj = yaffs_find_by_number(dev, obj_id);
++		if(obj)
++			return;
++	}
+ 
+-					in->hdrChunk = chunk;
++	/* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc.
++	 * We put it in unlinked dir to be cleaned up after the scanning
++	 */
++	obj =
++	    yaffs_find_or_create_by_number(dev, obj_id,
++					     YAFFS_OBJECT_TYPE_FILE);
++	if (!obj)
++		return;
++	obj->is_shadowed = 1;
++	yaffs_add_obj_to_dir(dev->unlinked_dir, obj);
++	obj->variant.file_variant.shrink_size = 0;
++	obj->valid = 1;		/* So that we don't read any other info for this file */
+ 
+-				} else if (!in->valid) {
+-					/* we need to load this info */
++}
+ 
+-					in->valid = 1;
+-					in->hdrChunk = chunk;
+ 
+-					if (oh) {
+-						in->variantType = oh->type;
++void yaffs_link_fixup(yaffs_dev_t *dev, yaffs_obj_t *hard_list)
++{
++	yaffs_obj_t *hl;
++	yaffs_obj_t *in;
+ 
+-						in->yst_mode = oh->yst_mode;
+-#ifdef CONFIG_YAFFS_WINCE
+-						in->win_atime[0] = oh->win_atime[0];
+-						in->win_ctime[0] = oh->win_ctime[0];
+-						in->win_mtime[0] = oh->win_mtime[0];
+-						in->win_atime[1] = oh->win_atime[1];
+-						in->win_ctime[1] = oh->win_ctime[1];
+-						in->win_mtime[1] = oh->win_mtime[1];
+-#else
+-						in->yst_uid = oh->yst_uid;
+-						in->yst_gid = oh->yst_gid;
+-						in->yst_atime = oh->yst_atime;
+-						in->yst_mtime = oh->yst_mtime;
+-						in->yst_ctime = oh->yst_ctime;
+-						in->yst_rdev = oh->yst_rdev;
+-#endif
++	while (hard_list) {
++		hl = hard_list;
++		hard_list = (yaffs_obj_t *) (hard_list->hard_links.next);
++
++		in = yaffs_find_by_number(dev,
++					      hl->variant.hardlink_variant.
++					      equiv_id);
+ 
+-						if (oh->shadowsObject > 0)
+-							yaffs_HandleShadowedObject(dev,
+-									   oh->
+-									   shadowsObject,
+-									   1);
+-
+-
+-						yaffs_SetObjectName(in, oh->name);
+-						parent =
+-						    yaffs_FindOrCreateObjectByNumber
+-							(dev, oh->parentObjectId,
+-							 YAFFS_OBJECT_TYPE_DIRECTORY);
+-
+-						 fileSize = oh->fileSize;
+-						 isShrink = oh->isShrink;
+-						 equivalentObjectId = oh->equivalentObjectId;
++		if (in) {
++			/* Add the hardlink pointers */
++			hl->variant.hardlink_variant.equiv_obj = in;
++			ylist_add(&hl->hard_links, &in->hard_links);
++		} else {
++			/* Todo Need to report/handle this better.
++			 * Got a problem... hardlink to a non-existant object
++			 */
++			hl->variant.hardlink_variant.equiv_obj = NULL;
++			YINIT_LIST_HEAD(&hl->hard_links);
+ 
+-					} else {
+-						in->variantType = tags.extraObjectType;
+-						parent =
+-						    yaffs_FindOrCreateObjectByNumber
+-							(dev, tags.extraParentObjectId,
+-							 YAFFS_OBJECT_TYPE_DIRECTORY);
+-						 fileSize = tags.extraFileLength;
+-						 isShrink = tags.extraIsShrinkHeader;
+-						 equivalentObjectId = tags.extraEquivalentObjectId;
+-						in->lazyLoaded = 1;
++		}
++	}
++}
+ 
+-					}
+-					in->dirty = 0;
+ 
+-					if (!parent)
+-						alloc_failed = 1;
++static void yaffs_strip_deleted_objs(yaffs_dev_t *dev)
++{
++	/*
++	*  Sort out state of unlinked and deleted objects after scanning.
++	*/
++	struct ylist_head *i;
++	struct ylist_head *n;
++	yaffs_obj_t *l;
+ 
+-					/* directory stuff...
+-					 * hook up to parent
+-					 */
++	if (dev->read_only)
++		return;
+ 
+-					if (parent && parent->variantType ==
+-					    YAFFS_OBJECT_TYPE_UNKNOWN) {
+-						/* Set up as a directory */
+-						parent->variantType =
+-							YAFFS_OBJECT_TYPE_DIRECTORY;
+-						YINIT_LIST_HEAD(&parent->variant.
+-							directoryVariant.
+-							children);
+-					} else if (!parent || parent->variantType !=
+-						   YAFFS_OBJECT_TYPE_DIRECTORY) {
+-						/* Hoosterman, another problem....
+-						 * We're trying to use a non-directory as a directory
+-						 */
++	/* Soft delete all the unlinked files */
++	ylist_for_each_safe(i, n,
++		&dev->unlinked_dir->variant.dir_variant.children) {
++		if (i) {
++			l = ylist_entry(i, yaffs_obj_t, siblings);
++			yaffs_del_obj(l);
++		}
++	}
+ 
+-						T(YAFFS_TRACE_ERROR,
+-						  (TSTR
+-						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
+-						    TENDSTR)));
+-						parent = dev->lostNFoundDir;
+-					}
++	ylist_for_each_safe(i, n,
++		&dev->del_dir->variant.dir_variant.children) {
++		if (i) {
++			l = ylist_entry(i, yaffs_obj_t, siblings);
++			yaffs_del_obj(l);
++		}
++	}
+ 
+-					yaffs_AddObjectToDirectory(parent, in);
++}
+ 
+-					itsUnlinked = (parent == dev->deletedDir) ||
+-						      (parent == dev->unlinkedDir);
++/*
++ * This code iterates through all the objects making sure that they are rooted.
++ * Any unrooted objects are re-rooted in lost+found.
++ * An object needs to be in one of:
++ * - Directly under deleted, unlinked
++ * - Directly or indirectly under root.
++ *
++ * Note:
++ *  This code assumes that we don't ever change the current relationships between
++ *  directories:
++ *   root_dir->parent == unlinked_dir->parent == del_dir->parent == NULL
++ *   lostNfound->parent == root_dir
++ *
++ * This fixes the problem where directories might have inadvertently been deleted
++ * leaving the object "hanging" without being rooted in the directory tree.
++ */
++ 
++static int yaffs_has_null_parent(yaffs_dev_t *dev, yaffs_obj_t *obj)
++{
++	return (obj == dev->del_dir ||
++		obj == dev->unlinked_dir||
++		obj == dev->root_dir);
++}
+ 
+-					if (isShrink) {
+-						/* Mark the block as having a shrinkHeader */
+-						bi->hasShrinkHeader = 1;
+-					}
++static void yaffs_fix_hanging_objs(yaffs_dev_t *dev)
++{
++	yaffs_obj_t *obj;
++	yaffs_obj_t *parent;
++	int i;
++	struct ylist_head *lh;
++	struct ylist_head *n;
++	int depthLimit;
++	int hanging;
+ 
+-					/* Note re hardlinks.
+-					 * Since we might scan a hardlink before its equivalent object is scanned
+-					 * we put them all in a list.
+-					 * After scanning is complete, we should have all the objects, so we run
+-					 * through this list and fix up all the chains.
+-					 */
++	if (dev->read_only)
++		return;
+ 
+-					switch (in->variantType) {
+-					case YAFFS_OBJECT_TYPE_UNKNOWN:
+-						/* Todo got a problem */
+-						break;
+-					case YAFFS_OBJECT_TYPE_FILE:
+-
+-						if (in->variant.fileVariant.
+-						    scannedFileSize < fileSize) {
+-							/* This covers the case where the file size is greater
+-							 * than where the data is
+-							 * This will happen if the file is resized to be larger
+-							 * than its current data extents.
+-							 */
+-							in->variant.fileVariant.fileSize = fileSize;
+-							in->variant.fileVariant.scannedFileSize =
+-							    in->variant.fileVariant.fileSize;
+-						}
++	/* Iterate through the objects in each hash entry,
++	 * looking at each object.
++	 * Make sure it is rooted.
++	 */
+ 
+-						if (isShrink &&
+-						    in->variant.fileVariant.shrinkSize > fileSize) {
+-							in->variant.fileVariant.shrinkSize = fileSize;
+-						}
++	for (i = 0; i <  YAFFS_NOBJECT_BUCKETS; i++) {
++		ylist_for_each_safe(lh, n, &dev->obj_bucket[i].list) {
++			if (lh) {
++				obj = ylist_entry(lh, yaffs_obj_t, hash_link);
++				parent= obj->parent;
++				
++				if(yaffs_has_null_parent(dev,obj)){
++					/* These directories are not hanging */
++					hanging = 0;
++				}
++				else if(!parent || parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY)
++					hanging = 1;
++				else if(yaffs_has_null_parent(dev,parent))
++					hanging = 0;
++				else {
++					/*
++					 * Need to follow the parent chain to see if it is hanging.
++					 */
++					hanging = 0;
++					depthLimit=100;
+ 
+-						break;
+-					case YAFFS_OBJECT_TYPE_HARDLINK:
+-						if (!itsUnlinked) {
+-							in->variant.hardLinkVariant.equivalentObjectId =
+-								equivalentObjectId;
+-							in->hardLinks.next =
+-								(struct ylist_head *) hardList;
+-							hardList = in;
+-						}
+-						break;
+-					case YAFFS_OBJECT_TYPE_DIRECTORY:
+-						/* Do nothing */
+-						break;
+-					case YAFFS_OBJECT_TYPE_SPECIAL:
+-						/* Do nothing */
+-						break;
+-					case YAFFS_OBJECT_TYPE_SYMLINK:
+-						if (oh) {
+-							in->variant.symLinkVariant.alias =
+-								yaffs_CloneString(oh->alias);
+-							if (!in->variant.symLinkVariant.alias)
+-								alloc_failed = 1;
+-						}
+-						break;
++					while(parent != dev->root_dir &&
++						parent->parent &&
++						parent->parent->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY &&
++						depthLimit > 0){
++						parent = parent->parent;
++						depthLimit--;
+ 					}
+-
++					if(parent != dev->root_dir)
++						hanging = 1;
++				}
++				if(hanging){
++					T(YAFFS_TRACE_SCAN,
++					  (TSTR("Hanging object %d moved to lost and found" TENDSTR),
++					  	obj->obj_id));
++					yaffs_add_obj_to_dir(dev->lost_n_found,obj);
+ 				}
+-
+ 			}
++		}
++	}
++}
+ 
+-		} /* End of scanning for each chunk */
+ 
+-		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
+-			/* If we got this far while scanning, then the block is fully allocated. */
+-			state = YAFFS_BLOCK_STATE_FULL;
+-		}
++/*
++ * Delete directory contents for cleaning up lost and found.
++ */
++static void yaffs_del_dir_contents(yaffs_obj_t *dir)
++{
++	yaffs_obj_t *obj;
++	struct ylist_head *lh;
++	struct ylist_head *n;
+ 
+-		bi->blockState = state;
++	if(dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY)
++		YBUG();
++	
++	ylist_for_each_safe(lh, n, &dir->variant.dir_variant.children) {
++		if (lh) {
++			obj = ylist_entry(lh, yaffs_obj_t, siblings);
++			if(obj->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY)
++				yaffs_del_dir_contents(obj);
++
++			T(YAFFS_TRACE_SCAN,
++				(TSTR("Deleting lost_found object %d" TENDSTR),
++				obj->obj_id));
+ 
+-		/* Now let's see if it was dirty */
+-		if (bi->pagesInUse == 0 &&
+-		    !bi->hasShrinkHeader &&
+-		    bi->blockState == YAFFS_BLOCK_STATE_FULL) {
+-			yaffs_BlockBecameDirty(dev, blk);
++			/* Need to use UnlinkObject since Delete would not handle
++			 * hardlinked objects correctly.
++			 */
++			yaffs_unlink_obj(obj); 
+ 		}
+-
+ 	}
++			
++}
+ 
+-	if (altBlockIndex)
+-		YFREE_ALT(blockIndex);
+-	else
+-		YFREE(blockIndex);
++static void yaffs_empty_l_n_f(yaffs_dev_t *dev)
++{
++	yaffs_del_dir_contents(dev->lost_n_found);
++}
+ 
+-	/* Ok, we've done all the scanning.
+-	 * Fix up the hard link chains.
+-	 * We should now have scanned all the objects, now it's time to add these
+-	 * hardlinks.
+-	 */
+-	yaffs_HardlinkFixup(dev, hardList);
++static void yaffs_check_obj_details_loaded(yaffs_obj_t *in)
++{
++	__u8 *chunkData;
++	yaffs_obj_header *oh;
++	yaffs_dev_t *dev;
++	yaffs_ext_tags tags;
++	int result;
++	int alloc_failed = 0;
+ 
++	if (!in)
++		return;
+ 
+-	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
++	dev = in->my_dev;
+ 
+-	if (alloc_failed)
+-		return YAFFS_FAIL;
++#if 0
++	T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR),
++		in->obj_id,
++		in->lazy_loaded ? "not yet" : "already"));
++#endif
+ 
+-	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR)));
++	if (in->lazy_loaded && in->hdr_chunk > 0) {
++		in->lazy_loaded = 0;
++		chunkData = yaffs_get_temp_buffer(dev, __LINE__);
+ 
+-	return YAFFS_OK;
+-}
++		result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, chunkData, &tags);
++		oh = (yaffs_obj_header *) chunkData;
+ 
+-/*------------------------------  Directory Functions ----------------------------- */
++		in->yst_mode = oh->yst_mode;
++#ifdef CONFIG_YAFFS_WINCE
++		in->win_atime[0] = oh->win_atime[0];
++		in->win_ctime[0] = oh->win_ctime[0];
++		in->win_mtime[0] = oh->win_mtime[0];
++		in->win_atime[1] = oh->win_atime[1];
++		in->win_ctime[1] = oh->win_ctime[1];
++		in->win_mtime[1] = oh->win_mtime[1];
++#else
++		in->yst_uid = oh->yst_uid;
++		in->yst_gid = oh->yst_gid;
++		in->yst_atime = oh->yst_atime;
++		in->yst_mtime = oh->yst_mtime;
++		in->yst_ctime = oh->yst_ctime;
++		in->yst_rdev = oh->yst_rdev;
+ 
+-static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj)
+-{
+-	struct ylist_head *lh;
+-	yaffs_Object *listObj;
++#endif
++		yaffs_set_obj_name_from_oh(in, oh);
+ 
+-	int count = 0;
++		if (in->variant_type == YAFFS_OBJECT_TYPE_SYMLINK) {
++			in->variant.symlink_variant.alias =
++						    yaffs_clone_str(oh->alias);
++			if (!in->variant.symlink_variant.alias)
++				alloc_failed = 1; /* Not returned to caller */
++		}
+ 
+-	if (!obj) {
+-		T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR)));
+-		YBUG();
+-		return;
++		yaffs_release_temp_buffer(dev, chunkData, __LINE__);
+ 	}
++}
+ 
+-	if (yaffs_SkipVerification(obj->myDev))
+-		return;
++/*------------------------------  Directory Functions ----------------------------- */
+ 
+-	if (!obj->parent) {
+-		T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR)));
+-		YBUG();
++/*
++ *yaffs_update_parent() handles fixing a directories mtime and ctime when a new
++ * link (ie. name) is created or deleted in the directory.
++ *
++ * ie.
++ *   create dir/a : update dir's mtime/ctime
++ *   rm dir/a:   update dir's mtime/ctime
++ *   modify dir/a: don't update dir's mtimme/ctime
++ *
++ * This can be handled immediately or defered. Defering helps reduce the number
++ * of updates when many files in a directory are changed within a brief period.
++ *
++ * If the directory updating is defered then yaffs_update_dirty_dirs must be
++ * called periodically.
++ */
++ 
++static void yaffs_update_parent(yaffs_obj_t *obj)
++{
++	yaffs_dev_t *dev;
++	if(!obj)
+ 		return;
+-	}
+-
+-	if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+-		T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR)));
+-		YBUG();
+-	}
+-
+-	/* Iterate through the objects in each hash entry */
++#ifndef CONFIG_YAFFS_WINCE
+ 
+-	ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) {
+-		if (lh) {
+-			listObj = ylist_entry(lh, yaffs_Object, siblings);
+-			yaffs_VerifyObject(listObj);
+-			if (obj == listObj)
+-				count++;
++	dev = obj->my_dev;
++	obj->dirty = 1;
++	obj->yst_mtime = obj->yst_ctime = Y_CURRENT_TIME;
++	if(dev->param.defered_dir_update){
++		struct ylist_head *link = &obj->variant.dir_variant.dirty; 
++	
++		if(ylist_empty(link)){
++			ylist_add(link,&dev->dirty_dirs);
++			T(YAFFS_TRACE_BACKGROUND, (TSTR("Added object %d to dirty directories" TENDSTR),obj->obj_id));
+ 		}
+-	 }
+ 
+-	if (count != 1) {
+-		T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count));
+-		YBUG();
+-	}
++	} else
++		yaffs_update_oh(obj, NULL, 0, 0, 0, NULL);
++#endif
+ }
+ 
+-static void yaffs_VerifyDirectory(yaffs_Object *directory)
++void yaffs_update_dirty_dirs(yaffs_dev_t *dev)
+ {
+-	struct ylist_head *lh;
+-	yaffs_Object *listObj;
+-
+-	if (!directory) {
+-		YBUG();
+-		return;
+-	}
++	struct ylist_head *link;
++	yaffs_obj_t *obj;
++	yaffs_dir_s *dS;
++	yaffs_obj_variant *oV;
+ 
+-	if (yaffs_SkipFullVerification(directory->myDev))
+-		return;
++	T(YAFFS_TRACE_BACKGROUND, (TSTR("Update dirty directories" TENDSTR)));
+ 
+-	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
+-		T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType));
+-		YBUG();
+-	}
++	while(!ylist_empty(&dev->dirty_dirs)){
++		link = dev->dirty_dirs.next;
++		ylist_del_init(link);
++		
++		dS=ylist_entry(link,yaffs_dir_s,dirty);
++		oV = ylist_entry(dS,yaffs_obj_variant,dir_variant);
++		obj = ylist_entry(oV,yaffs_obj_t,variant);
+ 
+-	/* Iterate through the objects in each hash entry */
++		T(YAFFS_TRACE_BACKGROUND, (TSTR("Update directory %d" TENDSTR), obj->obj_id));
+ 
+-	ylist_for_each(lh, &directory->variant.directoryVariant.children) {
+-		if (lh) {
+-			listObj = ylist_entry(lh, yaffs_Object, siblings);
+-			if (listObj->parent != directory) {
+-				T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent));
+-				YBUG();
+-			}
+-			yaffs_VerifyObjectInDirectory(listObj);
+-		}
++		if(obj->dirty)
++			yaffs_update_oh(obj, NULL, 0, 0, 0, NULL);
+ 	}
+ }
+ 
+-
+-static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj)
++static void yaffs_remove_obj_from_dir(yaffs_obj_t *obj)
+ {
+-	yaffs_Device *dev = obj->myDev;
+-	yaffs_Object *parent;
++	yaffs_dev_t *dev = obj->my_dev;
++	yaffs_obj_t *parent;
+ 
+-	yaffs_VerifyObjectInDirectory(obj);
++	yaffs_verify_obj_in_dir(obj);
+ 	parent = obj->parent;
+ 
+-	yaffs_VerifyDirectory(parent);
++	yaffs_verify_dir(parent);
+ 
+-	if (dev && dev->removeObjectCallback)
+-		dev->removeObjectCallback(obj);
++	if (dev && dev->param.remove_obj_fn)
++		dev->param.remove_obj_fn(obj);
+ 
+ 
+ 	ylist_del_init(&obj->siblings);
+ 	obj->parent = NULL;
+-
+-	yaffs_VerifyDirectory(parent);
++	
++	yaffs_verify_dir(parent);
+ }
+ 
+-
+-static void yaffs_AddObjectToDirectory(yaffs_Object *directory,
+-					yaffs_Object *obj)
++void yaffs_add_obj_to_dir(yaffs_obj_t *directory,
++					yaffs_obj_t *obj)
+ {
+ 	if (!directory) {
+ 		T(YAFFS_TRACE_ALWAYS,
+@@ -6699,7 +4495,7 @@ static void yaffs_AddObjectToDirectory(y
+ 		YBUG();
+ 		return;
+ 	}
+-	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
++	if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+ 		   ("tragedy: Trying to add an object to a non-directory"
+@@ -6713,27 +4509,27 @@ static void yaffs_AddObjectToDirectory(y
+ 	}
+ 
+ 
+-	yaffs_VerifyDirectory(directory);
++	yaffs_verify_dir(directory);
+ 
+-	yaffs_RemoveObjectFromDirectory(obj);
++	yaffs_remove_obj_from_dir(obj);
+ 
+ 
+ 	/* Now add it */
+-	ylist_add(&obj->siblings, &directory->variant.directoryVariant.children);
++	ylist_add(&obj->siblings, &directory->variant.dir_variant.children);
+ 	obj->parent = directory;
+ 
+-	if (directory == obj->myDev->unlinkedDir
+-			|| directory == obj->myDev->deletedDir) {
++	if (directory == obj->my_dev->unlinked_dir
++			|| directory == obj->my_dev->del_dir) {
+ 		obj->unlinked = 1;
+-		obj->myDev->nUnlinkedFiles++;
+-		obj->renameAllowed = 0;
++		obj->my_dev->n_unlinked_files++;
++		obj->rename_allowed = 0;
+ 	}
+ 
+-	yaffs_VerifyDirectory(directory);
+-	yaffs_VerifyObjectInDirectory(obj);
++	yaffs_verify_dir(directory);
++	yaffs_verify_obj_in_dir(obj);
+ }
+ 
+-yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory,
++yaffs_obj_t *yaffs_find_by_name(yaffs_obj_t *directory,
+ 				     const YCHAR *name)
+ {
+ 	int sum;
+@@ -6741,7 +4537,7 @@ yaffs_Object *yaffs_FindObjectByName(yaf
+ 	struct ylist_head *i;
+ 	YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1];
+ 
+-	yaffs_Object *l;
++	yaffs_obj_t *l;
+ 
+ 	if (!name)
+ 		return NULL;
+@@ -6749,39 +4545,39 @@ yaffs_Object *yaffs_FindObjectByName(yaf
+ 	if (!directory) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+-		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
++		   ("tragedy: yaffs_find_by_name: null pointer directory"
+ 		    TENDSTR)));
+ 		YBUG();
+ 		return NULL;
+ 	}
+-	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
++	if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+-		   ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR)));
++		   ("tragedy: yaffs_find_by_name: non-directory" TENDSTR)));
+ 		YBUG();
+ 	}
+ 
+-	sum = yaffs_CalcNameSum(name);
++	sum = yaffs_calc_name_sum(name);
+ 
+-	ylist_for_each(i, &directory->variant.directoryVariant.children) {
++	ylist_for_each(i, &directory->variant.dir_variant.children) {
+ 		if (i) {
+-			l = ylist_entry(i, yaffs_Object, siblings);
++			l = ylist_entry(i, yaffs_obj_t, siblings);
+ 
+ 			if (l->parent != directory)
+ 				YBUG();
+ 
+-			yaffs_CheckObjectDetailsLoaded(l);
++			yaffs_check_obj_details_loaded(l);
+ 
+ 			/* Special case for lost-n-found */
+-			if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
++			if (l->obj_id == YAFFS_OBJECTID_LOSTNFOUND) {
+ 				if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0)
+ 					return l;
+-			} else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) {
++			} else if (yaffs_sum_cmp(l->sum, sum) || l->hdr_chunk <= 0) {
+ 				/* LostnFound chunk called Objxxx
+ 				 * Do a real check
+ 				 */
+-				yaffs_GetObjectName(l, buffer,
+-						    YAFFS_MAX_NAME_LENGTH);
++				yaffs_get_obj_name(l, buffer,
++						    YAFFS_MAX_NAME_LENGTH + 1);
+ 				if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0)
+ 					return l;
+ 			}
+@@ -6793,31 +4589,31 @@ yaffs_Object *yaffs_FindObjectByName(yaf
+ 
+ 
+ #if 0
+-int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir,
+-					int (*fn) (yaffs_Object *))
++int yaffs_ApplyToDirectoryChildren(yaffs_obj_t *the_dir,
++					int (*fn) (yaffs_obj_t *))
+ {
+ 	struct ylist_head *i;
+-	yaffs_Object *l;
++	yaffs_obj_t *l;
+ 
+-	if (!theDir) {
++	if (!the_dir) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+-		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
++		   ("tragedy: yaffs_find_by_name: null pointer directory"
+ 		    TENDSTR)));
+ 		YBUG();
+ 		return YAFFS_FAIL;
+ 	}
+-	if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
++	if (the_dir->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+-		   ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR)));
++		   ("tragedy: yaffs_find_by_name: non-directory" TENDSTR)));
+ 		YBUG();
+ 		return YAFFS_FAIL;
+ 	}
+ 
+-	ylist_for_each(i, &theDir->variant.directoryVariant.children) {
++	ylist_for_each(i, &the_dir->variant.dir_variant.children) {
+ 		if (i) {
+-			l = ylist_entry(i, yaffs_Object, siblings);
++			l = ylist_entry(i, yaffs_obj_t, siblings);
+ 			if (l && !fn(l))
+ 				return YAFFS_FAIL;
+ 		}
+@@ -6832,82 +4628,175 @@ int yaffs_ApplyToDirectoryChildren(yaffs
+  * actual object.
+  */
+ 
+-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj)
++yaffs_obj_t *yaffs_get_equivalent_obj(yaffs_obj_t *obj)
+ {
+-	if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
++	if (obj && obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) {
+ 		/* We want the object id of the equivalent object, not this one */
+-		obj = obj->variant.hardLinkVariant.equivalentObject;
+-		yaffs_CheckObjectDetailsLoaded(obj);
++		obj = obj->variant.hardlink_variant.equiv_obj;
++		yaffs_check_obj_details_loaded(obj);
+ 	}
+ 	return obj;
+ }
+ 
+-int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize)
+-{
+-	memset(name, 0, buffSize * sizeof(YCHAR));
+-
+-	yaffs_CheckObjectDetailsLoaded(obj);
++/*
++ *  A note or two on object names.
++ *  * If the object name is missing, we then make one up in the form objnnn
++ *
++ *  * ASCII names are stored in the object header's name field from byte zero
++ *  * Unicode names are historically stored starting from byte zero.
++ *
++ * Then there are automatic Unicode names...
++ * The purpose of these is to save names in a way that can be read as
++ * ASCII or Unicode names as appropriate, thus allowing a Unicode and ASCII
++ * system to share files.
++ *
++ * These automatic unicode are stored slightly differently...
++ *  - If the name can fit in the ASCII character space then they are saved as 
++ *    ascii names as per above.
++ *  - If the name needs Unicode then the name is saved in Unicode
++ *    starting at oh->name[1].
+ 
+-	if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
+-		yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1);
+-	} else if (obj->hdrChunk <= 0) {
++ */
++static void yaffs_fix_null_name(yaffs_obj_t * obj,YCHAR * name, int buffer_size)
++{
++	/* Create an object name if we could not find one. */
++	if(yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH) == 0){
+ 		YCHAR locName[20];
+ 		YCHAR numString[20];
+ 		YCHAR *x = &numString[19];
+-		unsigned v = obj->objectId;
++		unsigned v = obj->obj_id;
+ 		numString[19] = 0;
+-		while (v > 0) {
++		while(v>0){
+ 			x--;
+ 			*x = '0' + (v % 10);
+ 			v /= 10;
+ 		}
+ 		/* make up a name */
+ 		yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX);
+-		yaffs_strcat(locName, x);
+-		yaffs_strncpy(name, locName, buffSize - 1);
++		yaffs_strcat(locName,x);
++		yaffs_strncpy(name, locName, buffer_size - 1);
++	}
++}
++
++static void yaffs_load_name_from_oh(yaffs_dev_t *dev,YCHAR *name, const YCHAR *ohName, int bufferSize)
++{
++#ifdef CONFIG_YAFFS_AUTO_UNICODE
++	if(dev->param.auto_unicode){
++		if(*ohName){
++			/* It is an ASCII name, so do an ASCII to unicode conversion */
++			const char *asciiOhName = (const char *)ohName;
++			int n = bufferSize - 1;
++			while(n > 0 && *asciiOhName){
++				*name = *asciiOhName;
++				name++;
++				asciiOhName++;
++				n--;
++			}
++		} else 
++			yaffs_strncpy(name,ohName+1, bufferSize -1);
++	} else
++#endif
++		yaffs_strncpy(name, ohName, bufferSize - 1);
++}
++
++
++static void yaffs_load_oh_from_name(yaffs_dev_t *dev, YCHAR *ohName, const YCHAR *name)
++{
++#ifdef CONFIG_YAFFS_AUTO_UNICODE
++
++	int isAscii;
++	YCHAR *w;
++
++	if(dev->param.auto_unicode){
++
++		isAscii = 1;
++		w = name;
++	
++		/* Figure out if the name will fit in ascii character set */
++		while(isAscii && *w){
++			if((*w) & 0xff00)
++				isAscii = 0;
++			w++;
++		}
+ 
++		if(isAscii){
++			/* It is an ASCII name, so do a unicode to ascii conversion */
++			char *asciiOhName = (char *)ohName;
++			int n = YAFFS_MAX_NAME_LENGTH  - 1;
++			while(n > 0 && *name){
++				*asciiOhName= *name;
++				name++;
++				asciiOhName++;
++				n--;
++			}
++		} else{
++			/* It is a unicode name, so save starting at the second YCHAR */
++			*ohName = 0;
++			yaffs_strncpy(ohName+1,name, YAFFS_MAX_NAME_LENGTH -2);
++		}
+ 	}
++	else 
++#endif
++		yaffs_strncpy(ohName,name, YAFFS_MAX_NAME_LENGTH - 1);
++
++}
++
++int yaffs_get_obj_name(yaffs_obj_t * obj, YCHAR * name, int buffer_size)
++{
++	memset(name, 0, buffer_size * sizeof(YCHAR));
++	
++	yaffs_check_obj_details_loaded(obj);
++
++	if (obj->obj_id == YAFFS_OBJECTID_LOSTNFOUND) {
++		yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffer_size - 1);
++	} 
+ #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+-	else if (obj->shortName[0])
+-		yaffs_strcpy(name, obj->shortName);
++	else if (obj->short_name[0]) {
++		yaffs_strcpy(name, obj->short_name);
++	}
+ #endif
+-	else {
++	else if(obj->hdr_chunk > 0) {
+ 		int result;
+-		__u8 *buffer = yaffs_GetTempBuffer(obj->myDev, __LINE__);
++		__u8 *buffer = yaffs_get_temp_buffer(obj->my_dev, __LINE__);
+ 
+-		yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *) buffer;
++		yaffs_obj_header *oh = (yaffs_obj_header *) buffer;
+ 
+-		memset(buffer, 0, obj->myDev->nDataBytesPerChunk);
++		memset(buffer, 0, obj->my_dev->data_bytes_per_chunk);
+ 
+-		if (obj->hdrChunk > 0) {
+-			result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev,
+-							obj->hdrChunk, buffer,
++		if (obj->hdr_chunk > 0) {
++			result = yaffs_rd_chunk_tags_nand(obj->my_dev,
++							obj->hdr_chunk, buffer,
+ 							NULL);
+ 		}
+-		yaffs_strncpy(name, oh->name, buffSize - 1);
++		yaffs_load_name_from_oh(obj->my_dev,name,oh->name,buffer_size);
+ 
+-		yaffs_ReleaseTempBuffer(obj->myDev, buffer, __LINE__);
++		yaffs_release_temp_buffer(obj->my_dev, buffer, __LINE__);
+ 	}
+ 
+-	return yaffs_strlen(name);
++	yaffs_fix_null_name(obj,name,buffer_size);
++
++	return yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH);
+ }
+ 
+-int yaffs_GetObjectFileLength(yaffs_Object *obj)
++
++int yaffs_get_obj_length(yaffs_obj_t *obj)
+ {
+ 	/* Dereference any hard linking */
+-	obj = yaffs_GetEquivalentObject(obj);
++	obj = yaffs_get_equivalent_obj(obj);
+ 
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE)
+-		return obj->variant.fileVariant.fileSize;
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK)
+-		return yaffs_strlen(obj->variant.symLinkVariant.alias);
+-	else {
++	if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE)
++		return obj->variant.file_variant.file_size;
++	if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK){
++		if(!obj->variant.symlink_variant.alias)
++			return 0;
++		return yaffs_strnlen(obj->variant.symlink_variant.alias,YAFFS_MAX_ALIAS_LENGTH);
++	} else {
+ 		/* Only a directory should drop through to here */
+-		return obj->myDev->nDataBytesPerChunk;
++		return obj->my_dev->data_bytes_per_chunk;
+ 	}
+ }
+ 
+-int yaffs_GetObjectLinkCount(yaffs_Object *obj)
++int yaffs_get_obj_link_count(yaffs_obj_t *obj)
+ {
+ 	int count = 0;
+ 	struct ylist_head *i;
+@@ -6915,24 +4804,24 @@ int yaffs_GetObjectLinkCount(yaffs_Objec
+ 	if (!obj->unlinked)
+ 		count++;		/* the object itself */
+ 
+-	ylist_for_each(i, &obj->hardLinks)
++	ylist_for_each(i, &obj->hard_links)
+ 		count++;		/* add the hard links; */
+ 
+ 	return count;
+ }
+ 
+-int yaffs_GetObjectInode(yaffs_Object *obj)
++int yaffs_get_obj_inode(yaffs_obj_t *obj)
+ {
+-	obj = yaffs_GetEquivalentObject(obj);
++	obj = yaffs_get_equivalent_obj(obj);
+ 
+-	return obj->objectId;
++	return obj->obj_id;
+ }
+ 
+-unsigned yaffs_GetObjectType(yaffs_Object *obj)
++unsigned yaffs_get_obj_type(yaffs_obj_t *obj)
+ {
+-	obj = yaffs_GetEquivalentObject(obj);
++	obj = yaffs_get_equivalent_obj(obj);
+ 
+-	switch (obj->variantType) {
++	switch (obj->variant_type) {
+ 	case YAFFS_OBJECT_TYPE_FILE:
+ 		return DT_REG;
+ 		break;
+@@ -6960,18 +4849,18 @@ unsigned yaffs_GetObjectType(yaffs_Objec
+ 	}
+ }
+ 
+-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj)
++YCHAR *yaffs_get_symlink_alias(yaffs_obj_t *obj)
+ {
+-	obj = yaffs_GetEquivalentObject(obj);
+-	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK)
+-		return yaffs_CloneString(obj->variant.symLinkVariant.alias);
++	obj = yaffs_get_equivalent_obj(obj);
++	if (obj->variant_type == YAFFS_OBJECT_TYPE_SYMLINK)
++		return yaffs_clone_str(obj->variant.symlink_variant.alias);
+ 	else
+-		return yaffs_CloneString(_Y(""));
++		return yaffs_clone_str(_Y(""));
+ }
+ 
+ #ifndef CONFIG_YAFFS_WINCE
+ 
+-int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr)
++int yaffs_set_attribs(yaffs_obj_t *obj, struct iattr *attr)
+ {
+ 	unsigned int valid = attr->ia_valid;
+ 
+@@ -6990,14 +4879,14 @@ int yaffs_SetAttributes(yaffs_Object *ob
+ 		obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime);
+ 
+ 	if (valid & ATTR_SIZE)
+-		yaffs_ResizeFile(obj, attr->ia_size);
++		yaffs_resize_file(obj, attr->ia_size);
+ 
+-	yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0);
++	yaffs_update_oh(obj, NULL, 1, 0, 0, NULL);
+ 
+ 	return YAFFS_OK;
+ 
+ }
+-int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr)
++int yaffs_get_attribs(yaffs_obj_t *obj, struct iattr *attr)
+ {
+ 	unsigned int valid = 0;
+ 
+@@ -7015,7 +4904,7 @@ int yaffs_GetAttributes(yaffs_Object *ob
+ 	Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime;
+ 	valid |= ATTR_MTIME;
+ 
+-	attr->ia_size = yaffs_GetFileSize(obj);
++	attr->ia_size = yaffs_get_file_size(obj);
+ 	valid |= ATTR_SIZE;
+ 
+ 	attr->ia_valid = valid;
+@@ -7025,20 +4914,137 @@ int yaffs_GetAttributes(yaffs_Object *ob
+ 
+ #endif
+ 
++
++static int yaffs_do_xattrib_mod(yaffs_obj_t *obj, int set, const YCHAR *name, const void *value, int size, int flags)
++{
++	yaffs_xattr_mod xmod;
++
++	int result;
++
++	xmod.set = set;
++	xmod.name = name;
++	xmod.data = value;
++	xmod.size =  size;
++	xmod.flags = flags;
++	xmod.result = -ENOSPC;
++
++	result = yaffs_update_oh(obj, NULL, 0, 0, 0, &xmod);
++
++	if(result > 0)
++		return xmod.result;
++	else
++		return -ENOSPC;
++}
++
++static int yaffs_apply_xattrib_mod(yaffs_obj_t *obj, char *buffer, yaffs_xattr_mod *xmod)
++{
++	int retval = 0;
++	int x_offs = sizeof(yaffs_obj_header);
++	yaffs_dev_t *dev = obj->my_dev;
++	int x_size = dev->data_bytes_per_chunk - sizeof(yaffs_obj_header);
++
++	char * x_buffer = buffer + x_offs;
++
++	if(xmod->set)
++		retval = nval_set(x_buffer, x_size, xmod->name, xmod->data, xmod->size, xmod->flags);
++	else
++		retval = nval_del(x_buffer, x_size, xmod->name);
++
++	obj->has_xattr = nval_hasvalues(x_buffer, x_size);
++	obj->xattr_known = 1;
++
++	xmod->result = retval;
++
++	return retval;
++}
++
++static int yaffs_do_xattrib_fetch(yaffs_obj_t *obj, const YCHAR *name, void *value, int size)
++{
++	char *buffer = NULL;
++	int result;
++	yaffs_ext_tags tags;
++	yaffs_dev_t *dev = obj->my_dev;
++	int x_offs = sizeof(yaffs_obj_header);
++	int x_size = dev->data_bytes_per_chunk - sizeof(yaffs_obj_header);
++
++	char * x_buffer;
++
++	int retval = 0;
++
++	if(obj->hdr_chunk < 1)
++		return -ENODATA;
++
++	/* If we know that the object has no xattribs then don't do all the
++	 * reading and parsing.
++	 */
++	if(obj->xattr_known && !obj->has_xattr){
++		if(name)
++			return -ENODATA;
++		else
++			return 0;
++	}
++
++	buffer = (char *) yaffs_get_temp_buffer(dev, __LINE__);
++	if(!buffer)
++		return -ENOMEM;
++
++	result = yaffs_rd_chunk_tags_nand(dev,obj->hdr_chunk, (__u8 *)buffer, &tags);
++
++	if(result != YAFFS_OK)
++		retval = -ENOENT;
++	else{
++		x_buffer =  buffer + x_offs;
++
++		if (!obj->xattr_known){
++			obj->has_xattr = nval_hasvalues(x_buffer, x_size);
++			obj->xattr_known = 1;
++		}
++
++		if(name)
++			retval = nval_get(x_buffer, x_size, name, value, size);
++		else
++			retval = nval_list(x_buffer, x_size, value,size);
++	}
++	yaffs_release_temp_buffer(dev,(__u8 *)buffer,__LINE__);
++	return retval;
++}
++
++int yaffs_set_xattrib(yaffs_obj_t *obj, const YCHAR *name, const void * value, int size, int flags)
++{
++	return yaffs_do_xattrib_mod(obj, 1, name, value, size, flags);
++}
++
++int yaffs_remove_xattrib(yaffs_obj_t *obj, const YCHAR *name)
++{
++	return yaffs_do_xattrib_mod(obj, 0, name, NULL, 0, 0);
++}
++
++int yaffs_get_xattrib(yaffs_obj_t *obj, const YCHAR *name, void *value, int size)
++{
++	return yaffs_do_xattrib_fetch(obj, name, value, size);
++}
++
++int yaffs_list_xattrib(yaffs_obj_t *obj, char *buffer, int size)
++{
++	return yaffs_do_xattrib_fetch(obj, NULL, buffer,size);
++}
++
++
++
+ #if 0
+-int yaffs_DumpObject(yaffs_Object *obj)
++int yaffs_dump_obj(yaffs_obj_t *obj)
+ {
+ 	YCHAR name[257];
+ 
+-	yaffs_GetObjectName(obj, name, 256);
++	yaffs_get_obj_name(obj, name, YAFFS_MAX_NAME_LENGTH + 1);
+ 
+ 	T(YAFFS_TRACE_ALWAYS,
+ 	  (TSTR
+ 	   ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d"
+ 	    " chunk %d type %d size %d\n"
+-	    TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name,
+-	   obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk,
+-	   yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj)));
++	    TENDSTR), obj->obj_id, yaffs_get_obj_inode(obj), name,
++	   obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdr_chunk,
++	   yaffs_get_obj_type(obj), yaffs_get_obj_length(obj)));
+ 
+ 	return YAFFS_OK;
+ }
+@@ -7046,72 +5052,74 @@ int yaffs_DumpObject(yaffs_Object *obj)
+ 
+ /*---------------------------- Initialisation code -------------------------------------- */
+ 
+-static int yaffs_CheckDevFunctions(const yaffs_Device *dev)
++static int yaffs_cehck_dev_fns(const yaffs_dev_t *dev)
+ {
+ 
+ 	/* Common functions, gotta have */
+-	if (!dev->eraseBlockInNAND || !dev->initialiseNAND)
++	if (!dev->param.erase_fn || !dev->param.initialise_flash_fn)
+ 		return 0;
+ 
+ #ifdef CONFIG_YAFFS_YAFFS2
+ 
+ 	/* Can use the "with tags" style interface for yaffs1 or yaffs2 */
+-	if (dev->writeChunkWithTagsToNAND &&
+-	    dev->readChunkWithTagsFromNAND &&
+-	    !dev->writeChunkToNAND &&
+-	    !dev->readChunkFromNAND &&
+-	    dev->markNANDBlockBad && dev->queryNANDBlock)
++	if (dev->param.write_chunk_tags_fn &&
++	    dev->param.read_chunk_tags_fn &&
++	    !dev->param.write_chunk_fn &&
++	    !dev->param.read_chunk_fn &&
++	    dev->param.bad_block_fn &&
++	    dev->param.query_block_fn)
+ 		return 1;
+ #endif
+ 
+ 	/* Can use the "spare" style interface for yaffs1 */
+-	if (!dev->isYaffs2 &&
+-	    !dev->writeChunkWithTagsToNAND &&
+-	    !dev->readChunkWithTagsFromNAND &&
+-	    dev->writeChunkToNAND &&
+-	    dev->readChunkFromNAND &&
+-	    !dev->markNANDBlockBad && !dev->queryNANDBlock)
++	if (!dev->param.is_yaffs2 &&
++	    !dev->param.write_chunk_tags_fn &&
++	    !dev->param.read_chunk_tags_fn &&
++	    dev->param.write_chunk_fn &&
++	    dev->param.read_chunk_fn &&
++	    !dev->param.bad_block_fn &&
++	    !dev->param.query_block_fn)
+ 		return 1;
+ 
+-	return 0;		/* bad */
++	return 0;	/* bad */
+ }
+ 
+ 
+-static int yaffs_CreateInitialDirectories(yaffs_Device *dev)
++static int yaffs_create_initial_dir(yaffs_dev_t *dev)
+ {
+ 	/* Initialise the unlinked, deleted, root and lost and found directories */
+ 
+-	dev->lostNFoundDir = dev->rootDir =  NULL;
+-	dev->unlinkedDir = dev->deletedDir = NULL;
++	dev->lost_n_found = dev->root_dir =  NULL;
++	dev->unlinked_dir = dev->del_dir = NULL;
+ 
+-	dev->unlinkedDir =
+-	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR);
++	dev->unlinked_dir =
++	    yaffs_create_fake_dir(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR);
+ 
+-	dev->deletedDir =
+-	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR);
++	dev->del_dir =
++	    yaffs_create_fake_dir(dev, YAFFS_OBJECTID_DELETED, S_IFDIR);
+ 
+-	dev->rootDir =
+-	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_ROOT,
++	dev->root_dir =
++	    yaffs_create_fake_dir(dev, YAFFS_OBJECTID_ROOT,
+ 				      YAFFS_ROOT_MODE | S_IFDIR);
+-	dev->lostNFoundDir =
+-	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND,
++	dev->lost_n_found =
++	    yaffs_create_fake_dir(dev, YAFFS_OBJECTID_LOSTNFOUND,
+ 				      YAFFS_LOSTNFOUND_MODE | S_IFDIR);
+ 
+-	if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) {
+-		yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir);
++	if (dev->lost_n_found && dev->root_dir && dev->unlinked_dir && dev->del_dir) {
++		yaffs_add_obj_to_dir(dev->root_dir, dev->lost_n_found);
+ 		return YAFFS_OK;
+ 	}
+ 
+ 	return YAFFS_FAIL;
+ }
+ 
+-int yaffs_GutsInitialise(yaffs_Device *dev)
++int yaffs_guts_initialise(yaffs_dev_t *dev)
+ {
+ 	int init_failed = 0;
+ 	unsigned x;
+ 	int bits;
+ 
+-	T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR)));
++	T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_guts_initialise()" TENDSTR)));
+ 
+ 	/* Check stuff that must be set */
+ 
+@@ -7120,52 +5128,52 @@ int yaffs_GutsInitialise(yaffs_Device *d
+ 		return YAFFS_FAIL;
+ 	}
+ 
+-	dev->internalStartBlock = dev->startBlock;
+-	dev->internalEndBlock = dev->endBlock;
+-	dev->blockOffset = 0;
+-	dev->chunkOffset = 0;
+-	dev->nFreeChunks = 0;
+-
+-	dev->gcBlock = -1;
+-
+-	if (dev->startBlock == 0) {
+-		dev->internalStartBlock = dev->startBlock + 1;
+-		dev->internalEndBlock = dev->endBlock + 1;
+-		dev->blockOffset = 1;
+-		dev->chunkOffset = dev->nChunksPerBlock;
++	dev->internal_start_block = dev->param.start_block;
++	dev->internal_end_block = dev->param.end_block;
++	dev->block_offset = 0;
++	dev->chunk_offset = 0;
++	dev->n_free_chunks = 0;
++
++	dev->gc_block = 0;
++
++	if (dev->param.start_block == 0) {
++		dev->internal_start_block = dev->param.start_block + 1;
++		dev->internal_end_block = dev->param.end_block + 1;
++		dev->block_offset = 1;
++		dev->chunk_offset = dev->param.chunks_per_block;
+ 	}
+ 
+ 	/* Check geometry parameters. */
+ 
+-	if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) ||
+-	    (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) ||
+-	    (dev->inbandTags && !dev->isYaffs2) ||
+-	     dev->nChunksPerBlock < 2 ||
+-	     dev->nReservedBlocks < 2 ||
+-	     dev->internalStartBlock <= 0 ||
+-	     dev->internalEndBlock <= 0 ||
+-	     dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) {	/* otherwise it is too small */
++	if ((!dev->param.inband_tags && dev->param.is_yaffs2 && dev->param.total_bytes_per_chunk < 1024) ||
++	    (!dev->param.is_yaffs2 && dev->param.total_bytes_per_chunk < 512) ||
++	    (dev->param.inband_tags && !dev->param.is_yaffs2) ||
++	     dev->param.chunks_per_block < 2 ||
++	     dev->param.n_reserved_blocks < 2 ||
++	     dev->internal_start_block <= 0 ||
++	     dev->internal_end_block <= 0 ||
++	     dev->internal_end_block <= (dev->internal_start_block + dev->param.n_reserved_blocks + 2)) {	/* otherwise it is too small */
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+-		   ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d "
+-		    TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags));
++		   ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inband_tags %d "
++		    TENDSTR), dev->param.total_bytes_per_chunk, dev->param.is_yaffs2 ? "2" : "", dev->param.inband_tags));
+ 		return YAFFS_FAIL;
+ 	}
+ 
+-	if (yaffs_InitialiseNAND(dev) != YAFFS_OK) {
++	if (yaffs_init_nand(dev) != YAFFS_OK) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR("yaffs: InitialiseNAND failed" TENDSTR)));
+ 		return YAFFS_FAIL;
+ 	}
+ 
+ 	/* Sort out space for inband tags, if required */
+-	if (dev->inbandTags)
+-		dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart);
++	if (dev->param.inband_tags)
++		dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk - sizeof(yaffs_PackedTags2TagsPart);
+ 	else
+-		dev->nDataBytesPerChunk = dev->totalBytesPerChunk;
++		dev->data_bytes_per_chunk = dev->param.total_bytes_per_chunk;
+ 
+ 	/* Got the right mix of functions? */
+-	if (!yaffs_CheckDevFunctions(dev)) {
++	if (!yaffs_cehck_dev_fns(dev)) {
+ 		/* Function missing */
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR
+@@ -7175,13 +5183,13 @@ int yaffs_GutsInitialise(yaffs_Device *d
+ 	}
+ 
+ 	/* This is really a compilation check. */
+-	if (!yaffs_CheckStructures()) {
++	if (!yaffs_check_structures()) {
+ 		T(YAFFS_TRACE_ALWAYS,
+-		  (TSTR("yaffs_CheckStructures failed\n" TENDSTR)));
++		  (TSTR("yaffs_check_structures failed\n" TENDSTR)));
+ 		return YAFFS_FAIL;
+ 	}
+ 
+-	if (dev->isMounted) {
++	if (dev->is_mounted) {
+ 		T(YAFFS_TRACE_ALWAYS,
+ 		  (TSTR("yaffs: device already mounted\n" TENDSTR)));
+ 		return YAFFS_FAIL;
+@@ -7189,59 +5197,62 @@ int yaffs_GutsInitialise(yaffs_Device *d
+ 
+ 	/* Finished with most checks. One or two more checks happen later on too. */
+ 
+-	dev->isMounted = 1;
++	dev->is_mounted = 1;
+ 
+ 	/* OK now calculate a few things for the device */
+ 
+ 	/*
+ 	 *  Calculate all the chunk size manipulation numbers:
+ 	 */
+-	x = dev->nDataBytesPerChunk;
+-	/* We always use dev->chunkShift and dev->chunkDiv */
+-	dev->chunkShift = Shifts(x);
+-	x >>= dev->chunkShift;
+-	dev->chunkDiv = x;
+-	/* We only use chunk mask if chunkDiv is 1 */
+-	dev->chunkMask = (1<<dev->chunkShift) - 1;
++	x = dev->data_bytes_per_chunk;
++	/* We always use dev->chunk_shift and dev->chunk_div */
++	dev->chunk_shift = Shifts(x);
++	x >>= dev->chunk_shift;
++	dev->chunk_div = x;
++	/* We only use chunk mask if chunk_div is 1 */
++	dev->chunk_mask = (1<<dev->chunk_shift) - 1;
+ 
+ 	/*
+-	 * Calculate chunkGroupBits.
+-	 * We need to find the next power of 2 > than internalEndBlock
++	 * Calculate chunk_grp_bits.
++	 * We need to find the next power of 2 > than internal_end_block
+ 	 */
+ 
+-	x = dev->nChunksPerBlock * (dev->internalEndBlock + 1);
++	x = dev->param.chunks_per_block * (dev->internal_end_block + 1);
+ 
+ 	bits = ShiftsGE(x);
+ 
+ 	/* Set up tnode width if wide tnodes are enabled. */
+-	if (!dev->wideTnodesDisabled) {
++	if (!dev->param.wide_tnodes_disabled) {
+ 		/* bits must be even so that we end up with 32-bit words */
+ 		if (bits & 1)
+ 			bits++;
+ 		if (bits < 16)
+-			dev->tnodeWidth = 16;
++			dev->tnode_width = 16;
+ 		else
+-			dev->tnodeWidth = bits;
++			dev->tnode_width = bits;
+ 	} else
+-		dev->tnodeWidth = 16;
++		dev->tnode_width = 16;
+ 
+-	dev->tnodeMask = (1<<dev->tnodeWidth)-1;
++	dev->tnode_mask = (1<<dev->tnode_width)-1;
+ 
+ 	/* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled),
+ 	 * so if the bitwidth of the
+ 	 * chunk range we're using is greater than 16 we need
+-	 * to figure out chunk shift and chunkGroupSize
++	 * to figure out chunk shift and chunk_grp_size
+ 	 */
+ 
+-	if (bits <= dev->tnodeWidth)
+-		dev->chunkGroupBits = 0;
++	if (bits <= dev->tnode_width)
++		dev->chunk_grp_bits = 0;
+ 	else
+-		dev->chunkGroupBits = bits - dev->tnodeWidth;
++		dev->chunk_grp_bits = bits - dev->tnode_width;
+ 
++	dev->tnode_size = (dev->tnode_width * YAFFS_NTNODES_LEVEL0)/8;
++	if(dev->tnode_size < sizeof(yaffs_tnode_t))
++		dev->tnode_size = sizeof(yaffs_tnode_t);
+ 
+-	dev->chunkGroupSize = 1 << dev->chunkGroupBits;
++	dev->chunk_grp_size = 1 << dev->chunk_grp_bits;
+ 
+-	if (dev->nChunksPerBlock < dev->chunkGroupSize) {
++	if (dev->param.chunks_per_block < dev->chunk_grp_size) {
+ 		/* We have a problem because the soft delete won't work if
+ 		 * the chunk group size > chunks per block.
+ 		 * This can be remedied by using larger "virtual blocks".
+@@ -7255,85 +5266,89 @@ int yaffs_GutsInitialise(yaffs_Device *d
+ 	/* OK, we've finished verifying the device, lets continue with initialisation */
+ 
+ 	/* More device initialisation */
+-	dev->garbageCollections = 0;
+-	dev->passiveGarbageCollections = 0;
+-	dev->currentDirtyChecker = 0;
+-	dev->bufferedBlock = -1;
+-	dev->doingBufferedBlockRewrite = 0;
+-	dev->nDeletedFiles = 0;
+-	dev->nBackgroundDeletions = 0;
+-	dev->nUnlinkedFiles = 0;
+-	dev->eccFixed = 0;
+-	dev->eccUnfixed = 0;
+-	dev->tagsEccFixed = 0;
+-	dev->tagsEccUnfixed = 0;
+-	dev->nErasureFailures = 0;
+-	dev->nErasedBlocks = 0;
+-	dev->isDoingGC = 0;
+-	dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */
++	dev->all_gcs = 0;
++	dev->passive_gc_count = 0;
++	dev->oldest_dirty_gc_count = 0;
++	dev->bg_gcs = 0;
++	dev->gc_block_finder = 0;
++	dev->buffered_block = -1;
++	dev->doing_buffered_block_rewrite = 0;
++	dev->n_deleted_files = 0;
++	dev->n_bg_deletions = 0;
++	dev->n_unlinked_files = 0;
++	dev->n_ecc_fixed = 0;
++	dev->n_ecc_unfixed = 0;
++	dev->n_tags_ecc_fixed = 0;
++	dev->n_tags_ecc_unfixed = 0;
++	dev->n_erase_failures = 0;
++	dev->n_erased_blocks = 0;
++	dev->gc_disable= 0;
++	dev->has_pending_prioritised_gc = 1; /* Assume the worst for now, will get fixed on first GC */
++	YINIT_LIST_HEAD(&dev->dirty_dirs);
++	dev->oldest_dirty_seq = 0;
++	dev->oldest_dirty_block = 0;
+ 
+ 	/* Initialise temporary buffers and caches. */
+-	if (!yaffs_InitialiseTempBuffers(dev))
++	if (!yaffs_init_tmp_buffers(dev))
+ 		init_failed = 1;
+ 
+-	dev->srCache = NULL;
+-	dev->gcCleanupList = NULL;
++	dev->cache = NULL;
++	dev->gc_cleanup_list = NULL;
+ 
+ 
+ 	if (!init_failed &&
+-	    dev->nShortOpCaches > 0) {
++	    dev->param.n_caches > 0) {
+ 		int i;
+ 		void *buf;
+-		int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache);
++		int cacheBytes = dev->param.n_caches * sizeof(yaffs_cache_t);
+ 
+-		if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES)
+-			dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES;
++		if (dev->param.n_caches > YAFFS_MAX_SHORT_OP_CACHES)
++			dev->param.n_caches = YAFFS_MAX_SHORT_OP_CACHES;
+ 
+-		dev->srCache =  YMALLOC(srCacheBytes);
++		dev->cache =  YMALLOC(cacheBytes);
+ 
+-		buf = (__u8 *) dev->srCache;
++		buf = (__u8 *) dev->cache;
+ 
+-		if (dev->srCache)
+-			memset(dev->srCache, 0, srCacheBytes);
++		if (dev->cache)
++			memset(dev->cache, 0, cacheBytes);
+ 
+-		for (i = 0; i < dev->nShortOpCaches && buf; i++) {
+-			dev->srCache[i].object = NULL;
+-			dev->srCache[i].lastUse = 0;
+-			dev->srCache[i].dirty = 0;
+-			dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk);
++		for (i = 0; i < dev->param.n_caches && buf; i++) {
++			dev->cache[i].object = NULL;
++			dev->cache[i].last_use = 0;
++			dev->cache[i].dirty = 0;
++			dev->cache[i].data = buf = YMALLOC_DMA(dev->param.total_bytes_per_chunk);
+ 		}
+ 		if (!buf)
+ 			init_failed = 1;
+ 
+-		dev->srLastUse = 0;
++		dev->cache_last_use = 0;
+ 	}
+ 
+-	dev->cacheHits = 0;
++	dev->cache_hits = 0;
+ 
+ 	if (!init_failed) {
+-		dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32));
+-		if (!dev->gcCleanupList)
++		dev->gc_cleanup_list = YMALLOC(dev->param.chunks_per_block * sizeof(__u32));
++		if (!dev->gc_cleanup_list)
+ 			init_failed = 1;
+ 	}
+ 
+-	if (dev->isYaffs2)
+-		dev->useHeaderFileSize = 1;
++	if (dev->param.is_yaffs2)
++		dev->param.use_header_file_size = 1;
+ 
+-	if (!init_failed && !yaffs_InitialiseBlocks(dev))
++	if (!init_failed && !yaffs_init_blocks(dev))
+ 		init_failed = 1;
+ 
+-	yaffs_InitialiseTnodes(dev);
+-	yaffs_InitialiseObjects(dev);
++	yaffs_init_tnodes_and_objs(dev);
+ 
+-	if (!init_failed && !yaffs_CreateInitialDirectories(dev))
++	if (!init_failed && !yaffs_create_initial_dir(dev))
+ 		init_failed = 1;
+ 
+ 
+ 	if (!init_failed) {
+ 		/* Now scan the flash. */
+-		if (dev->isYaffs2) {
+-			if (yaffs_CheckpointRestore(dev)) {
+-				yaffs_CheckObjectDetailsLoaded(dev->rootDir);
++		if (dev->param.is_yaffs2) {
++			if (yaffs2_checkpt_restore(dev)) {
++				yaffs_check_obj_details_loaded(dev->root_dir);
+ 				T(YAFFS_TRACE_ALWAYS,
+ 				  (TSTR("yaffs: restored from checkpoint" TENDSTR)));
+ 			} else {
+@@ -7341,128 +5356,129 @@ int yaffs_GutsInitialise(yaffs_Device *d
+ 				/* Clean up the mess caused by an aborted checkpoint load
+ 				 * and scan backwards.
+ 				 */
+-				yaffs_DeinitialiseBlocks(dev);
+-				yaffs_DeinitialiseTnodes(dev);
+-				yaffs_DeinitialiseObjects(dev);
++				yaffs_deinit_blocks(dev);
+ 
++				yaffs_deinit_tnodes_and_objs(dev);
+ 
+-				dev->nErasedBlocks = 0;
+-				dev->nFreeChunks = 0;
+-				dev->allocationBlock = -1;
+-				dev->allocationPage = -1;
+-				dev->nDeletedFiles = 0;
+-				dev->nUnlinkedFiles = 0;
+-				dev->nBackgroundDeletions = 0;
+-				dev->oldestDirtySequence = 0;
++				dev->n_erased_blocks = 0;
++				dev->n_free_chunks = 0;
++				dev->alloc_block = -1;
++				dev->alloc_page = -1;
++				dev->n_deleted_files = 0;
++				dev->n_unlinked_files = 0;
++				dev->n_bg_deletions = 0;
+ 
+-				if (!init_failed && !yaffs_InitialiseBlocks(dev))
++				if (!init_failed && !yaffs_init_blocks(dev))
+ 					init_failed = 1;
+ 
+-				yaffs_InitialiseTnodes(dev);
+-				yaffs_InitialiseObjects(dev);
++				yaffs_init_tnodes_and_objs(dev);
+ 
+-				if (!init_failed && !yaffs_CreateInitialDirectories(dev))
++				if (!init_failed && !yaffs_create_initial_dir(dev))
+ 					init_failed = 1;
+ 
+-				if (!init_failed && !yaffs_ScanBackwards(dev))
++				if (!init_failed && !yaffs2_scan_backwards(dev))
+ 					init_failed = 1;
+ 			}
+-		} else if (!yaffs_Scan(dev))
++		} else if (!yaffs1_scan(dev))
+ 				init_failed = 1;
+ 
+-		yaffs_StripDeletedObjects(dev);
++		yaffs_strip_deleted_objs(dev);
++		yaffs_fix_hanging_objs(dev);
++		if(dev->param.empty_lost_n_found)
++			yaffs_empty_l_n_f(dev);
+ 	}
+ 
+ 	if (init_failed) {
+ 		/* Clean up the mess */
+ 		T(YAFFS_TRACE_TRACING,
+-		  (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR)));
++		  (TSTR("yaffs: yaffs_guts_initialise() aborted.\n" TENDSTR)));
+ 
+-		yaffs_Deinitialise(dev);
++		yaffs_deinitialise(dev);
+ 		return YAFFS_FAIL;
+ 	}
+ 
+ 	/* Zero out stats */
+-	dev->nPageReads = 0;
+-	dev->nPageWrites = 0;
+-	dev->nBlockErasures = 0;
+-	dev->nGCCopies = 0;
+-	dev->nRetriedWrites = 0;
+-
+-	dev->nRetiredBlocks = 0;
+-
+-	yaffs_VerifyFreeChunks(dev);
+-	yaffs_VerifyBlocks(dev);
+-
++	dev->n_page_reads = 0;
++	dev->n_page_writes = 0;
++	dev->n_erasures = 0;
++	dev->n_gc_copies = 0;
++	dev->n_retired_writes = 0;
++
++	dev->n_retired_blocks = 0;
++
++	yaffs_verify_free_chunks(dev);
++	yaffs_verify_blocks(dev);
++
++	/* Clean up any aborted checkpoint data */
++	if(!dev->is_checkpointed && dev->blocks_in_checkpt > 0)
++		yaffs2_checkpt_invalidate(dev);
+ 
+ 	T(YAFFS_TRACE_TRACING,
+-	  (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR)));
++	  (TSTR("yaffs: yaffs_guts_initialise() done.\n" TENDSTR)));
+ 	return YAFFS_OK;
+ 
+ }
+ 
+-void yaffs_Deinitialise(yaffs_Device *dev)
++void yaffs_deinitialise(yaffs_dev_t *dev)
+ {
+-	if (dev->isMounted) {
++	if (dev->is_mounted) {
+ 		int i;
+ 
+-		yaffs_DeinitialiseBlocks(dev);
+-		yaffs_DeinitialiseTnodes(dev);
+-		yaffs_DeinitialiseObjects(dev);
+-		if (dev->nShortOpCaches > 0 &&
+-		    dev->srCache) {
++		yaffs_deinit_blocks(dev);
++		yaffs_deinit_tnodes_and_objs(dev);
++		if (dev->param.n_caches > 0 &&
++		    dev->cache) {
+ 
+-			for (i = 0; i < dev->nShortOpCaches; i++) {
+-				if (dev->srCache[i].data)
+-					YFREE(dev->srCache[i].data);
+-				dev->srCache[i].data = NULL;
++			for (i = 0; i < dev->param.n_caches; i++) {
++				if (dev->cache[i].data)
++					YFREE(dev->cache[i].data);
++				dev->cache[i].data = NULL;
+ 			}
+ 
+-			YFREE(dev->srCache);
+-			dev->srCache = NULL;
++			YFREE(dev->cache);
++			dev->cache = NULL;
+ 		}
+ 
+-		YFREE(dev->gcCleanupList);
++		YFREE(dev->gc_cleanup_list);
+ 
+ 		for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++)
+-			YFREE(dev->tempBuffer[i].buffer);
++			YFREE(dev->temp_buffer[i].buffer);
+ 
+-		dev->isMounted = 0;
++		dev->is_mounted = 0;
+ 
+-		if (dev->deinitialiseNAND)
+-			dev->deinitialiseNAND(dev);
++		if (dev->param.deinitialise_flash_fn)
++			dev->param.deinitialise_flash_fn(dev);
+ 	}
+ }
+ 
+-static int yaffs_CountFreeChunks(yaffs_Device *dev)
++int yaffs_count_free_chunks(yaffs_dev_t *dev)
+ {
+-	int nFree;
++	int nFree=0;
+ 	int b;
+ 
+-	yaffs_BlockInfo *blk;
+-
+-	for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock;
+-			b++) {
+-		blk = yaffs_GetBlockInfo(dev, b);
++	yaffs_block_info_t *blk;
+ 
+-		switch (blk->blockState) {
++	blk = dev->block_info;
++	for (b = dev->internal_start_block; b <= dev->internal_end_block; b++) {
++		switch (blk->block_state) {
+ 		case YAFFS_BLOCK_STATE_EMPTY:
+ 		case YAFFS_BLOCK_STATE_ALLOCATING:
+ 		case YAFFS_BLOCK_STATE_COLLECTING:
+ 		case YAFFS_BLOCK_STATE_FULL:
+ 			nFree +=
+-			    (dev->nChunksPerBlock - blk->pagesInUse +
+-			     blk->softDeletions);
++			    (dev->param.chunks_per_block - blk->pages_in_use +
++			     blk->soft_del_pages);
+ 			break;
+ 		default:
+ 			break;
+ 		}
++		blk++;
+ 	}
+ 
+ 	return nFree;
+ }
+ 
+-int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev)
++int yaffs_get_n_free_chunks(yaffs_dev_t *dev)
+ {
+ 	/* This is what we report to the outside world */
+ 
+@@ -7472,30 +5488,28 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De
+ 	int i;
+ 
+ #if 1
+-	nFree = dev->nFreeChunks;
++	nFree = dev->n_free_chunks;
+ #else
+-	nFree = yaffs_CountFreeChunks(dev);
++	nFree = yaffs_count_free_chunks(dev);
+ #endif
+ 
+-	nFree += dev->nDeletedFiles;
++	nFree += dev->n_deleted_files;
+ 
+ 	/* Now count the number of dirty chunks in the cache and subtract those */
+ 
+-	for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) {
+-		if (dev->srCache[i].dirty)
++	for (nDirtyCacheChunks = 0, i = 0; i < dev->param.n_caches; i++) {
++		if (dev->cache[i].dirty)
+ 			nDirtyCacheChunks++;
+ 	}
+ 
+ 	nFree -= nDirtyCacheChunks;
+ 
+-	nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock);
++	nFree -= ((dev->param.n_reserved_blocks + 1) * dev->param.chunks_per_block);
+ 
+ 	/* Now we figure out how much to reserve for the checkpoint and report that... */
+-	blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
+-	if (blocksForCheckpoint < 0)
+-		blocksForCheckpoint = 0;
++	blocksForCheckpoint = yaffs_calc_checkpt_blocks_required(dev);
+ 
+-	nFree -= (blocksForCheckpoint * dev->nChunksPerBlock);
++	nFree -= (blocksForCheckpoint * dev->param.chunks_per_block);
+ 
+ 	if (nFree < 0)
+ 		nFree = 0;
+@@ -7504,49 +5518,27 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De
+ 
+ }
+ 
+-static int yaffs_freeVerificationFailures;
+-
+-static void yaffs_VerifyFreeChunks(yaffs_Device *dev)
+-{
+-	int counted;
+-	int difference;
+-
+-	if (yaffs_SkipVerification(dev))
+-		return;
+-
+-	counted = yaffs_CountFreeChunks(dev);
+-
+-	difference = dev->nFreeChunks - counted;
+-
+-	if (difference) {
+-		T(YAFFS_TRACE_ALWAYS,
+-		  (TSTR("Freechunks verification failure %d %d %d" TENDSTR),
+-		   dev->nFreeChunks, counted, difference));
+-		yaffs_freeVerificationFailures++;
+-	}
+-}
+ 
+ /*---------------------------------------- YAFFS test code ----------------------*/
+ 
+-#define yaffs_CheckStruct(structure, syze, name) \
++#define yaffs_check_struct(structure, syze, name) \
+ 	do { \
+ 		if (sizeof(structure) != syze) { \
+ 			T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\
+-				name, syze, sizeof(structure))); \
++				name, syze, (int) sizeof(structure))); \
+ 			return YAFFS_FAIL; \
+ 		} \
+ 	} while (0)
+ 
+-static int yaffs_CheckStructures(void)
++static int yaffs_check_structures(void)
+ {
+-/*      yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */
+-/*      yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */
+-/*      yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */
+-#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG
+-	yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode");
+-#endif
++/*      yaffs_check_struct(yaffs_tags_t,8,"yaffs_tags_t"); */
++/*      yaffs_check_struct(yaffs_tags_union_t,8,"yaffs_tags_union_t"); */
++/*      yaffs_check_struct(yaffs_spare,16,"yaffs_spare"); */
++/*	yaffs_check_struct(yaffs_tnode_t, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_tnode_t"); */
++
+ #ifndef CONFIG_YAFFS_WINCE
+-	yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader");
++	yaffs_check_struct(yaffs_obj_header, 512, "yaffs_obj_header");
+ #endif
+ 	return YAFFS_OK;
+ }
+--- a/fs/yaffs2/yaffs_guts.h
++++ b/fs/yaffs2/yaffs_guts.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -16,8 +16,9 @@
+ #ifndef __YAFFS_GUTS_H__
+ #define __YAFFS_GUTS_H__
+ 
+-#include "devextras.h"
+ #include "yportenv.h"
++#include "devextras.h"
++#include "yaffs_list.h"
+ 
+ #define YAFFS_OK	1
+ #define YAFFS_FAIL  0
+@@ -52,7 +53,6 @@
+ 
+ #define YAFFS_MAX_CHUNK_ID		0x000FFFFF
+ 
+-#define YAFFS_UNUSED_OBJECT_ID		0x0003FFFF
+ 
+ #define YAFFS_ALLOCATION_NOBJECTS	100
+ #define YAFFS_ALLOCATION_NTNODES	100
+@@ -62,8 +62,9 @@
+ 
+ 
+ #define YAFFS_OBJECT_SPACE		0x40000
++#define YAFFS_MAX_OBJECT_ID		(YAFFS_OBJECT_SPACE -1)
+ 
+-#define YAFFS_CHECKPOINT_VERSION 	3
++#define YAFFS_CHECKPOINT_VERSION 	4
+ 
+ #ifdef CONFIG_YAFFS_UNICODE
+ #define YAFFS_MAX_NAME_LENGTH		127
+@@ -81,12 +82,11 @@
+ #define YAFFS_OBJECTID_UNLINKED		3
+ #define YAFFS_OBJECTID_DELETED		4
+ 
+-/* Sseudo object ids for checkpointing */
++/* Pseudo object ids for checkpointing */
+ #define YAFFS_OBJECTID_SB_HEADER	0x10
+ #define YAFFS_OBJECTID_CHECKPOINT_DATA	0x20
+ #define YAFFS_SEQUENCE_CHECKPOINT_DATA  0x21
+ 
+-/* */
+ 
+ #define YAFFS_MAX_SHORT_OP_CACHES	20
+ 
+@@ -113,18 +113,14 @@
+ 
+ /* ChunkCache is used for short read/write operations.*/
+ typedef struct {
+-	struct yaffs_ObjectStruct *object;
+-	int chunkId;
+-	int lastUse;
++	struct yaffs_obj_s *object;
++	int chunk_id;
++	int last_use;
+ 	int dirty;
+-	int nBytes;		/* Only valid if the cache is dirty */
++	int n_bytes;		/* Only valid if the cache is dirty */
+ 	int locked;		/* Can't push out or flush while locked. */
+-#ifdef CONFIG_YAFFS_YAFFS2
+ 	__u8 *data;
+-#else
+-	__u8 data[YAFFS_BYTES_PER_CHUNK];
+-#endif
+-} yaffs_ChunkCache;
++} yaffs_cache_t;
+ 
+ 
+ 
+@@ -135,18 +131,18 @@ typedef struct {
+ 
+ #ifndef CONFIG_YAFFS_NO_YAFFS1
+ typedef struct {
+-	unsigned chunkId:20;
+-	unsigned serialNumber:2;
+-	unsigned byteCountLSB:10;
+-	unsigned objectId:18;
++	unsigned chunk_id:20;
++	unsigned serial_number:2;
++	unsigned n_bytes_lsb:10;
++	unsigned obj_id:18;
+ 	unsigned ecc:12;
+-	unsigned byteCountMSB:2;
+-} yaffs_Tags;
++	unsigned n_bytes_msb:2;
++} yaffs_tags_t;
+ 
+ typedef union {
+-	yaffs_Tags asTags;
+-	__u8 asBytes[8];
+-} yaffs_TagsUnion;
++	yaffs_tags_t as_tags;
++	__u8 as_bytes[8];
++} yaffs_tags_union_t;
+ 
+ #endif
+ 
+@@ -157,7 +153,7 @@ typedef enum {
+ 	YAFFS_ECC_RESULT_NO_ERROR,
+ 	YAFFS_ECC_RESULT_FIXED,
+ 	YAFFS_ECC_RESULT_UNFIXED
+-} yaffs_ECCResult;
++} yaffs_ecc_result;
+ 
+ typedef enum {
+ 	YAFFS_OBJECT_TYPE_UNKNOWN,
+@@ -166,64 +162,64 @@ typedef enum {
+ 	YAFFS_OBJECT_TYPE_DIRECTORY,
+ 	YAFFS_OBJECT_TYPE_HARDLINK,
+ 	YAFFS_OBJECT_TYPE_SPECIAL
+-} yaffs_ObjectType;
++} yaffs_obj_type;
+ 
+ #define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL
+ 
+ typedef struct {
+ 
+-	unsigned validMarker0;
+-	unsigned chunkUsed;	/*  Status of the chunk: used or unused */
+-	unsigned objectId;	/* If 0 then this is not part of an object (unused) */
+-	unsigned chunkId;	/* If 0 then this is a header, else a data chunk */
+-	unsigned byteCount;	/* Only valid for data chunks */
++	unsigned validity1;
++	unsigned chunk_used;	/*  Status of the chunk: used or unused */
++	unsigned obj_id;	/* If 0 then this is not part of an object (unused) */
++	unsigned chunk_id;	/* If 0 then this is a header, else a data chunk */
++	unsigned n_bytes;	/* Only valid for data chunks */
+ 
+ 	/* The following stuff only has meaning when we read */
+-	yaffs_ECCResult eccResult;
+-	unsigned blockBad;
++	yaffs_ecc_result ecc_result;
++	unsigned block_bad;
+ 
+ 	/* YAFFS 1 stuff */
+-	unsigned chunkDeleted;	/* The chunk is marked deleted */
+-	unsigned serialNumber;	/* Yaffs1 2-bit serial number */
++	unsigned is_deleted;	/* The chunk is marked deleted */
++	unsigned serial_number;	/* Yaffs1 2-bit serial number */
+ 
+ 	/* YAFFS2 stuff */
+-	unsigned sequenceNumber;	/* The sequence number of this block */
++	unsigned seq_number;	/* The sequence number of this block */
+ 
+ 	/* Extra info if this is an object header (YAFFS2 only) */
+ 
+-	unsigned extraHeaderInfoAvailable;	/* There is extra info available if this is not zero */
+-	unsigned extraParentObjectId;	/* The parent object */
+-	unsigned extraIsShrinkHeader;	/* Is it a shrink header? */
+-	unsigned extraShadows;		/* Does this shadow another object? */
++	unsigned extra_available;	/* There is extra info available if this is not zero */
++	unsigned extra_parent_id;	/* The parent object */
++	unsigned extra_is_shrink;	/* Is it a shrink header? */
++	unsigned extra_shadows;		/* Does this shadow another object? */
+ 
+-	yaffs_ObjectType extraObjectType;	/* What object type? */
++	yaffs_obj_type extra_obj_type;	/* What object type? */
+ 
+-	unsigned extraFileLength;		/* Length if it is a file */
+-	unsigned extraEquivalentObjectId;	/* Equivalent object Id if it is a hard link */
++	unsigned extra_length;		/* Length if it is a file */
++	unsigned extra_equiv_id;	/* Equivalent object Id if it is a hard link */
+ 
+-	unsigned validMarker1;
++	unsigned validty1;
+ 
+-} yaffs_ExtendedTags;
++} yaffs_ext_tags;
+ 
+ /* Spare structure for YAFFS1 */
+ typedef struct {
+-	__u8 tagByte0;
+-	__u8 tagByte1;
+-	__u8 tagByte2;
+-	__u8 tagByte3;
+-	__u8 pageStatus;	/* set to 0 to delete the chunk */
+-	__u8 blockStatus;
+-	__u8 tagByte4;
+-	__u8 tagByte5;
++	__u8 tb0;
++	__u8 tb1;
++	__u8 tb2;
++	__u8 tb3;
++	__u8 page_status;	/* set to 0 to delete the chunk */
++	__u8 block_status;
++	__u8 tb4;
++	__u8 tb5;
+ 	__u8 ecc1[3];
+-	__u8 tagByte6;
+-	__u8 tagByte7;
++	__u8 tb6;
++	__u8 tb7;
+ 	__u8 ecc2[3];
+-} yaffs_Spare;
++} yaffs_spare;
+ 
+ /*Special structure for passing through to mtd */
+-struct yaffs_NANDSpare {
+-	yaffs_Spare spare;
++struct yaffs_nand_spare {
++	yaffs_spare spare;
+ 	int eccres1;
+ 	int eccres2;
+ };
+@@ -234,6 +230,8 @@ typedef enum {
+ 	YAFFS_BLOCK_STATE_UNKNOWN = 0,
+ 
+ 	YAFFS_BLOCK_STATE_SCANNING,
++        /* Being scanned */
++
+ 	YAFFS_BLOCK_STATE_NEEDS_SCANNING,
+ 	/* The block might have something on it (ie it is allocating or full, perhaps empty)
+ 	 * but it needs to be scanned to determine its true state.
+@@ -249,67 +247,69 @@ typedef enum {
+ 	/* This block is partially allocated.
+ 	 * At least one page holds valid data.
+ 	 * This is the one currently being used for page
+-	 * allocation. Should never be more than one of these
++	 * allocation. Should never be more than one of these.
++         * If a block is only partially allocated at mount it is treated as full.
+ 	 */
+ 
+ 	YAFFS_BLOCK_STATE_FULL,
+ 	/* All the pages in this block have been allocated.
++         * If a block was only partially allocated when mounted we treat
++         * it as fully allocated.
+ 	 */
+ 
+ 	YAFFS_BLOCK_STATE_DIRTY,
+-	/* All pages have been allocated and deleted.
++	/* The block was full and now all chunks have been deleted.
+ 	 * Erase me, reuse me.
+ 	 */
+ 
+ 	YAFFS_BLOCK_STATE_CHECKPOINT,
+-	/* This block is assigned to holding checkpoint data.
+-	 */
++	/* This block is assigned to holding checkpoint data. */
+ 
+ 	YAFFS_BLOCK_STATE_COLLECTING,
+ 	/* This block is being garbage collected */
+ 
+ 	YAFFS_BLOCK_STATE_DEAD
+ 	/* This block has failed and is not in use */
+-} yaffs_BlockState;
++} yaffs_block_state_t;
+ 
+ #define	YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1)
+ 
+ 
+ typedef struct {
+ 
+-	int softDeletions:10;	/* number of soft deleted pages */
+-	int pagesInUse:10;	/* number of pages in use */
+-	unsigned blockState:4;	/* One of the above block states. NB use unsigned because enum is sometimes an int */
+-	__u32 needsRetiring:1;	/* Data has failed on this block, need to get valid data off */
++	int soft_del_pages:10;	/* number of soft deleted pages */
++	int pages_in_use:10;	/* number of pages in use */
++	unsigned block_state:4;	/* One of the above block states. NB use unsigned because enum is sometimes an int */
++	__u32 needs_retiring:1;	/* Data has failed on this block, need to get valid data off */
+ 				/* and retire the block. */
+-	__u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */
+-	__u32 gcPrioritise:1; 	/* An ECC check or blank check has failed on this block.
++	__u32 skip_erased_check:1; /* If this is set we can skip the erased check on this block */
++	__u32 gc_prioritise:1; 	/* An ECC check or blank check has failed on this block.
+ 				   It should be prioritised for GC */
+-	__u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */
++	__u32 chunk_error_strikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */
+ 
+ #ifdef CONFIG_YAFFS_YAFFS2
+-	__u32 hasShrinkHeader:1; /* This block has at least one shrink object header */
+-	__u32 sequenceNumber;	 /* block sequence number for yaffs2 */
++	__u32 has_shrink_hdr:1; /* This block has at least one shrink object header */
++	__u32 seq_number;	 /* block sequence number for yaffs2 */
+ #endif
+ 
+-} yaffs_BlockInfo;
++} yaffs_block_info_t;
+ 
+ /* -------------------------- Object structure -------------------------------*/
+ /* This is the object structure as stored on NAND */
+ 
+ typedef struct {
+-	yaffs_ObjectType type;
++	yaffs_obj_type type;
+ 
+ 	/* Apply to everything  */
+-	int parentObjectId;
+-	__u16 sum__NoLongerUsed;        /* checksum of name. No longer used */
++	int parent_obj_id;
++	__u16 sum_no_longer_used;        /* checksum of name. No longer used */
+ 	YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
+ 
+ 	/* The following apply to directories, files, symlinks - not hard links */
+ 	__u32 yst_mode;         /* protection */
+ 
+ #ifdef CONFIG_YAFFS_WINCE
+-	__u32 notForWinCE[5];
++	__u32 not_for_wince[5];
+ #else
+ 	__u32 yst_uid;
+ 	__u32 yst_gid;
+@@ -319,10 +319,10 @@ typedef struct {
+ #endif
+ 
+ 	/* File size  applies to files only */
+-	int fileSize;
++	int file_size;
+ 
+ 	/* Equivalent object id applies to hard links only. */
+-	int equivalentObjectId;
++	int equiv_id;
+ 
+ 	/* Alias is for symlinks only. */
+ 	YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1];
+@@ -334,40 +334,29 @@ typedef struct {
+ 	__u32 win_atime[2];
+ 	__u32 win_mtime[2];
+ #else
+-	__u32 roomToGrow[6];
++	__u32 room_to_grow[6];
+ 
+ #endif
+-	__u32 inbandShadowsObject;
+-	__u32 inbandIsShrink;
++	__u32 inband_shadowed_obj_id;
++	__u32 inband_is_shrink;
+ 
+-	__u32 reservedSpace[2];
+-	int shadowsObject;	/* This object header shadows the specified object if > 0 */
++	__u32 reserved[2];
++	int shadows_obj;	/* This object header shadows the specified object if > 0 */
+ 
+-	/* isShrink applies to object headers written when we shrink the file (ie resize) */
+-	__u32 isShrink;
++	/* is_shrink applies to object headers written when we shrink the file (ie resize) */
++	__u32 is_shrink;
+ 
+-} yaffs_ObjectHeader;
++} yaffs_obj_header;
+ 
+ /*--------------------------- Tnode -------------------------- */
+ 
+-union yaffs_Tnode_union {
+-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
+-	union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1];
+-#else
+-	union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL];
+-#endif
+-/*	__u16 level0[YAFFS_NTNODES_LEVEL0]; */
++union yaffs_tnode_union {
++	union yaffs_tnode_union *internal[YAFFS_NTNODES_INTERNAL];
+ 
+ };
+ 
+-typedef union yaffs_Tnode_union yaffs_Tnode;
++typedef union yaffs_tnode_union yaffs_tnode_t;
+ 
+-struct yaffs_TnodeList_struct {
+-	struct yaffs_TnodeList_struct *next;
+-	yaffs_Tnode *tnodes;
+-};
+-
+-typedef struct yaffs_TnodeList_struct yaffs_TnodeList;
+ 
+ /*------------------------  Object -----------------------------*/
+ /* An object can be one of:
+@@ -378,82 +367,85 @@ typedef struct yaffs_TnodeList_struct ya
+  */
+ 
+ typedef struct {
+-	__u32 fileSize;
+-	__u32 scannedFileSize;
+-	__u32 shrinkSize;
+-	int topLevel;
+-	yaffs_Tnode *top;
+-} yaffs_FileStructure;
++	__u32 file_size;
++	__u32 scanned_size;
++	__u32 shrink_size;
++	int top_level;
++	yaffs_tnode_t *top;
++} yaffs_file_s;
+ 
+ typedef struct {
+ 	struct ylist_head children;     /* list of child links */
+-} yaffs_DirectoryStructure;
++	struct ylist_head dirty;	/* Entry for list of dirty directories */
++} yaffs_dir_s;
+ 
+ typedef struct {
+ 	YCHAR *alias;
+-} yaffs_SymLinkStructure;
++} yaffs_symlink_t;
+ 
+ typedef struct {
+-	struct yaffs_ObjectStruct *equivalentObject;
+-	__u32 equivalentObjectId;
+-} yaffs_HardLinkStructure;
++	struct yaffs_obj_s *equiv_obj;
++	__u32 equiv_id;
++} yaffs_hard_link_s;
+ 
+ typedef union {
+-	yaffs_FileStructure fileVariant;
+-	yaffs_DirectoryStructure directoryVariant;
+-	yaffs_SymLinkStructure symLinkVariant;
+-	yaffs_HardLinkStructure hardLinkVariant;
+-} yaffs_ObjectVariant;
++	yaffs_file_s file_variant;
++	yaffs_dir_s dir_variant;
++	yaffs_symlink_t symlink_variant;
++	yaffs_hard_link_s hardlink_variant;
++} yaffs_obj_variant;
++
++
+ 
+-struct yaffs_ObjectStruct {
++struct yaffs_obj_s {
+ 	__u8 deleted:1;		/* This should only apply to unlinked files. */
+-	__u8 softDeleted:1;	/* it has also been soft deleted */
++	__u8 soft_del:1;	/* it has also been soft deleted */
+ 	__u8 unlinked:1;	/* An unlinked file. The file should be in the unlinked directory.*/
+ 	__u8 fake:1;		/* A fake object has no presence on NAND. */
+-	__u8 renameAllowed:1;	/* Some objects are not allowed to be renamed. */
+-	__u8 unlinkAllowed:1;
++	__u8 rename_allowed:1;	/* Some objects are not allowed to be renamed. */
++	__u8 unlink_allowed:1;
+ 	__u8 dirty:1;		/* the object needs to be written to flash */
+ 	__u8 valid:1;		/* When the file system is being loaded up, this
+ 				 * object might be created before the data
+ 				 * is available (ie. file data records appear before the header).
+ 				 */
+-	__u8 lazyLoaded:1;	/* This object has been lazy loaded and is missing some detail */
++	__u8 lazy_loaded:1;	/* This object has been lazy loaded and is missing some detail */
+ 
+-	__u8 deferedFree:1;	/* For Linux kernel. Object is removed from NAND, but is
++	__u8 defered_free:1;	/* For Linux kernel. Object is removed from NAND, but is
+ 				 * still in the inode cache. Free of object is defered.
+ 				 * until the inode is released.
+ 				 */
+-	__u8 beingCreated:1;	/* This object is still being created so skip some checks. */
++	__u8 being_created:1;	/* This object is still being created so skip some checks. */
++	__u8 is_shadowed:1;	/* This object is shadowed on the way to being renamed. */
++
++	__u8 xattr_known:1;	/* We know if this has object has xattribs or not. */
++	__u8 has_xattr:1;	/* This object has xattribs. Valid if xattr_known. */
+ 
+ 	__u8 serial;		/* serial number of chunk in NAND. Cached here */
+ 	__u16 sum;		/* sum of the name to speed searching */
+ 
+-	struct yaffs_DeviceStruct *myDev;       /* The device I'm on */
++	struct yaffs_dev_s *my_dev;       /* The device I'm on */
+ 
+-	struct ylist_head hashLink;     /* list of objects in this hash bucket */
++	struct ylist_head hash_link;     /* list of objects in this hash bucket */
+ 
+-	struct ylist_head hardLinks;    /* all the equivalent hard linked objects */
++	struct ylist_head hard_links;    /* all the equivalent hard linked objects */
+ 
+ 	/* directory structure stuff */
+ 	/* also used for linking up the free list */
+-	struct yaffs_ObjectStruct *parent;
++	struct yaffs_obj_s *parent;
+ 	struct ylist_head siblings;
+ 
+ 	/* Where's my object header in NAND? */
+-	int hdrChunk;
++	int hdr_chunk;
+ 
+-	int nDataChunks;	/* Number of data chunks attached to the file. */
++	int n_data_chunks;	/* Number of data chunks attached to the file. */
+ 
+-	__u32 objectId;		/* the object id value */
++	__u32 obj_id;		/* the object id value */
+ 
+ 	__u32 yst_mode;
+ 
+ #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+-	YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1];
+-#endif
+-
+-#ifndef __KERNEL__
+-	__u32 inUse;
++	YCHAR short_name[YAFFS_SHORT_NAME_LENGTH + 1];
+ #endif
+ 
+ #ifdef CONFIG_YAFFS_WINCE
+@@ -470,53 +462,43 @@ struct yaffs_ObjectStruct {
+ 
+ 	__u32 yst_rdev;
+ 
+-#ifdef __KERNEL__
+-	struct inode *myInode;
++	void *my_inode;
+ 
+-#endif
++	yaffs_obj_type variant_type;
+ 
+-	yaffs_ObjectType variantType;
++	yaffs_obj_variant variant;
+ 
+-	yaffs_ObjectVariant variant;
+-
+-};
+-
+-typedef struct yaffs_ObjectStruct yaffs_Object;
+-
+-struct yaffs_ObjectList_struct {
+-	yaffs_Object *objects;
+-	struct yaffs_ObjectList_struct *next;
+ };
+ 
+-typedef struct yaffs_ObjectList_struct yaffs_ObjectList;
++typedef struct yaffs_obj_s yaffs_obj_t;
+ 
+ typedef struct {
+ 	struct ylist_head list;
+ 	int count;
+-} yaffs_ObjectBucket;
++} yaffs_obj_bucket;
+ 
+ 
+-/* yaffs_CheckpointObject holds the definition of an object as dumped
++/* yaffs_checkpt_obj_t holds the definition of an object as dumped
+  * by checkpointing.
+  */
+ 
+ typedef struct {
+-	int structType;
+-	__u32 objectId;
+-	__u32 parentId;
+-	int hdrChunk;
+-	yaffs_ObjectType variantType:3;
++	int struct_type;
++	__u32 obj_id;
++	__u32 parent_id;
++	int hdr_chunk;
++	yaffs_obj_type variant_type:3;
+ 	__u8 deleted:1;
+-	__u8 softDeleted:1;
++	__u8 soft_del:1;
+ 	__u8 unlinked:1;
+ 	__u8 fake:1;
+-	__u8 renameAllowed:1;
+-	__u8 unlinkAllowed:1;
++	__u8 rename_allowed:1;
++	__u8 unlink_allowed:1;
+ 	__u8 serial;
+ 
+-	int nDataChunks;
+-	__u32 fileSizeOrEquivalentObjectId;
+-} yaffs_CheckpointObject;
++	int n_data_chunks;
++	__u32 size_or_equiv_obj;
++} yaffs_checkpt_obj_t;
+ 
+ /*--------------------- Temporary buffers ----------------
+  *
+@@ -526,379 +508,462 @@ typedef struct {
+ typedef struct {
+ 	__u8 *buffer;
+ 	int line;	/* track from whence this buffer was allocated */
+-	int maxLine;
+-} yaffs_TempBuffer;
++	int max_line;
++} yaffs_buffer_t;
+ 
+ /*----------------- Device ---------------------------------*/
+ 
+-struct yaffs_DeviceStruct {
+-	struct ylist_head devList;
+-	const char *name;
+-
+-	/* Entry parameters set up way early. Yaffs sets up the rest.*/
+-	int nDataBytesPerChunk;	/* Should be a power of 2 >= 512 */
+-	int nChunksPerBlock;	/* does not need to be a power of 2 */
+-	int spareBytesPerChunk;	/* spare area size */
+-	int startBlock;		/* Start block we're allowed to use */
+-	int endBlock;		/* End block we're allowed to use */
+-	int nReservedBlocks;	/* We want this tuneable so that we can reduce */
+-				/* reserved blocks on NOR and RAM. */
+-
+ 
+-	/* Stuff used by the shared space checkpointing mechanism */
+-	/* If this value is zero, then this mechanism is disabled */
++struct yaffs_param_s {
++	const YCHAR *name;
+ 
+-/*	int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */
++	/*
++         * Entry parameters set up way early. Yaffs sets up the rest.
++         * The structure should be zeroed out before use so that unused
++         * and defualt values are zero.
++         */
++
++	int inband_tags;          /* Use unband tags */
++	__u32 total_bytes_per_chunk; /* Should be >= 512, does not need to be a power of 2 */
++	int chunks_per_block;	/* does not need to be a power of 2 */
++	int spare_bytes_per_chunk;	/* spare area size */
++	int start_block;		/* Start block we're allowed to use */
++	int end_block;		/* End block we're allowed to use */
++	int n_reserved_blocks;	/* We want this tuneable so that we can reduce */
++				/* reserved blocks on NOR and RAM. */
+ 
+ 
+-	int nShortOpCaches;	/* If <= 0, then short op caching is disabled, else
+-				 * the number of short op caches (don't use too many)
++	int n_caches;	/* If <= 0, then short op caching is disabled, else
++				 * the number of short op caches (don't use too many).
++                                 * 10 to 20 is a good bet.
+ 				 */
++	int use_nand_ecc;		/* Flag to decide whether or not to use NANDECC on data (yaffs1) */
++	int no_tags_ecc;		/* Flag to decide whether or not to do ECC on packed tags (yaffs2) */ 
+ 
+-	int useHeaderFileSize;	/* Flag to determine if we should use file sizes from the header */
++	int is_yaffs2;           /* Use yaffs2 mode on this device */
+ 
+-	int useNANDECC;		/* Flag to decide whether or not to use NANDECC */
++	int empty_lost_n_found;  /* Auto-empty lost+found directory on mount */
+ 
+-	void *genericDevice;	/* Pointer to device context
+-				 * On an mtd this holds the mtd pointer.
+-				 */
+-	void *superBlock;
++	int refresh_period;	/* How often we should check to do a block refresh */
++
++	/* Checkpoint control. Can be set before or after initialisation */
++	__u8 skip_checkpt_rd;
++	__u8 skip_checkpt_wr;
++
++	int enable_xattr;	/* Enable xattribs */
+ 
+ 	/* NAND access functions (Must be set before calling YAFFS)*/
+ 
+-	int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev,
+-					int chunkInNAND, const __u8 *data,
+-					const yaffs_Spare *spare);
+-	int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev,
+-					int chunkInNAND, __u8 *data,
+-					yaffs_Spare *spare);
+-	int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev,
+-					int blockInNAND);
+-	int (*initialiseNAND) (struct yaffs_DeviceStruct *dev);
+-	int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev);
++	int (*write_chunk_fn) (struct yaffs_dev_s *dev,
++					int nand_chunk, const __u8 *data,
++					const yaffs_spare *spare);
++	int (*read_chunk_fn) (struct yaffs_dev_s *dev,
++					int nand_chunk, __u8 *data,
++					yaffs_spare *spare);
++	int (*erase_fn) (struct yaffs_dev_s *dev,
++					int flash_block);
++	int (*initialise_flash_fn) (struct yaffs_dev_s *dev);
++	int (*deinitialise_flash_fn) (struct yaffs_dev_s *dev);
+ 
+ #ifdef CONFIG_YAFFS_YAFFS2
+-	int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev,
+-					 int chunkInNAND, const __u8 *data,
+-					 const yaffs_ExtendedTags *tags);
+-	int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev,
+-					  int chunkInNAND, __u8 *data,
+-					  yaffs_ExtendedTags *tags);
+-	int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo);
+-	int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo,
+-			       yaffs_BlockState *state, __u32 *sequenceNumber);
+-#endif
+-
+-	int isYaffs2;
+-
+-	/* The removeObjectCallback function must be supplied by OS flavours that
+-	 * need it. The Linux kernel does not use this, but yaffs direct does use
+-	 * it to implement the faster readdir
++	int (*write_chunk_tags_fn) (struct yaffs_dev_s *dev,
++					 int nand_chunk, const __u8 *data,
++					 const yaffs_ext_tags *tags);
++	int (*read_chunk_tags_fn) (struct yaffs_dev_s *dev,
++					  int nand_chunk, __u8 *data,
++					  yaffs_ext_tags *tags);
++	int (*bad_block_fn) (struct yaffs_dev_s *dev, int block_no);
++	int (*query_block_fn) (struct yaffs_dev_s *dev, int block_no,
++			       yaffs_block_state_t *state, __u32 *seq_number);
++#endif
++
++	/* The remove_obj_fn function must be supplied by OS flavours that
++	 * need it.
++         * yaffs direct uses it to implement the faster readdir.
++         * Linux uses it to protect the directory during unlocking.
+ 	 */
+-	void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj);
++	void (*remove_obj_fn)(struct yaffs_obj_s *obj);
+ 
+-	/* Callback to mark the superblock dirsty */
+-	void (*markSuperBlockDirty)(void *superblock);
++	/* Callback to mark the superblock dirty */
++	void (*sb_dirty_fn)(struct yaffs_dev_s *dev);
++	
++	/*  Callback to control garbage collection. */
++	unsigned (*gc_control)(struct yaffs_dev_s *dev);
++
++        /* Debug control flags. Don't use unless you know what you're doing */
++	int use_header_file_size;	/* Flag to determine if we should use file sizes from the header */
++	int disable_lazy_load;	/* Disable lazy loading on this device */
++	int wide_tnodes_disabled; /* Set to disable wide tnodes */
++	int disable_soft_del;  /* yaffs 1 only: Set to disable the use of softdeletion. */
++	
++	int defered_dir_update; /* Set to defer directory updates */
+ 
+-	int wideTnodesDisabled; /* Set to disable wide tnodes */
++#ifdef CONFIG_YAFFS_AUTO_UNICODE
++	int auto_unicode;
++#endif
++	int always_check_erased; /* Force chunk erased check always on */
++};
+ 
+-	YCHAR *pathDividers;	/* String of legal path dividers */
++typedef struct yaffs_param_s yaffs_param_t;
+ 
++struct yaffs_dev_s {
++	struct yaffs_param_s param;
+ 
+-	/* End of stuff that must be set before initialisation. */
++        /* Context storage. Holds extra OS specific data for this device */
+ 
+-	/* Checkpoint control. Can be set before or after initialisation */
+-	__u8 skipCheckpointRead;
+-	__u8 skipCheckpointWrite;
++	void *os_context;
++	void *driver_context;
++
++	struct ylist_head dev_list;
+ 
+ 	/* Runtime parameters. Set up by YAFFS. */
++	int data_bytes_per_chunk;	
+ 
+-	__u16 chunkGroupBits;	/* 0 for devices <= 32MB. else log2(nchunks) - 16 */
+-	__u16 chunkGroupSize;	/* == 2^^chunkGroupBits */
++        /* Non-wide tnode stuff */
++	__u16 chunk_grp_bits;	/* Number of bits that need to be resolved if
++                                 * the tnodes are not wide enough.
++                                 */
++	__u16 chunk_grp_size;	/* == 2^^chunk_grp_bits */
+ 
+ 	/* Stuff to support wide tnodes */
+-	__u32 tnodeWidth;
+-	__u32 tnodeMask;
++	__u32 tnode_width;
++	__u32 tnode_mask;
++	__u32 tnode_size;
+ 
+ 	/* Stuff for figuring out file offset to chunk conversions */
+-	__u32 chunkShift; /* Shift value */
+-	__u32 chunkDiv;   /* Divisor after shifting: 1 for power-of-2 sizes */
+-	__u32 chunkMask;  /* Mask to use for power-of-2 case */
+-
+-	/* Stuff to handle inband tags */
+-	int inbandTags;
+-	__u32 totalBytesPerChunk;
+-
+-#ifdef __KERNEL__
+-
+-	struct semaphore sem;	/* Semaphore for waiting on erasure.*/
+-	struct semaphore grossLock;	/* Gross locking semaphore */
+-	__u8 *spareBuffer;	/* For mtdif2 use. Don't know the size of the buffer
+-				 * at compile time so we have to allocate it.
+-				 */
+-	void (*putSuperFunc) (struct super_block *sb);
+-#endif
++	__u32 chunk_shift; /* Shift value */
++	__u32 chunk_div;   /* Divisor after shifting: 1 for power-of-2 sizes */
++	__u32 chunk_mask;  /* Mask to use for power-of-2 case */
+ 
+-	int isMounted;
+ 
+-	int isCheckpointed;
++
++	int is_mounted;
++	int read_only;
++	int is_checkpointed;
+ 
+ 
+ 	/* Stuff to support block offsetting to support start block zero */
+-	int internalStartBlock;
+-	int internalEndBlock;
+-	int blockOffset;
+-	int chunkOffset;
++	int internal_start_block;
++	int internal_end_block;
++	int block_offset;
++	int chunk_offset;
+ 
+ 
+ 	/* Runtime checkpointing stuff */
+-	int checkpointPageSequence;   /* running sequence number of checkpoint pages */
+-	int checkpointByteCount;
+-	int checkpointByteOffset;
+-	__u8 *checkpointBuffer;
+-	int checkpointOpenForWrite;
+-	int blocksInCheckpoint;
+-	int checkpointCurrentChunk;
+-	int checkpointCurrentBlock;
+-	int checkpointNextBlock;
+-	int *checkpointBlockList;
+-	int checkpointMaxBlocks;
+-	__u32 checkpointSum;
+-	__u32 checkpointXor;
++	int checkpt_page_seq;   /* running sequence number of checkpoint pages */
++	int checkpt_byte_count;
++	int checkpt_byte_offs;
++	__u8 *checkpt_buffer;
++	int checkpt_open_write;
++	int blocks_in_checkpt;
++	int checkpt_cur_chunk;
++	int checkpt_cur_block;
++	int checkpt_next_block;
++	int *checkpt_block_list;
++	int checkpt_max_blocks;
++	__u32 checkpt_sum;
++	__u32 checkpt_xor;
+ 
+-	int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */
++	int checkpoint_blocks_required; /* Number of blocks needed to store current checkpoint set */
+ 
+ 	/* Block Info */
+-	yaffs_BlockInfo *blockInfo;
+-	__u8 *chunkBits;	/* bitmap of chunks in use */
+-	unsigned blockInfoAlt:1;	/* was allocated using alternative strategy */
+-	unsigned chunkBitsAlt:1;	/* was allocated using alternative strategy */
+-	int chunkBitmapStride;	/* Number of bytes of chunkBits per block.
+-				 * Must be consistent with nChunksPerBlock.
++	yaffs_block_info_t *block_info;
++	__u8 *chunk_bits;	/* bitmap of chunks in use */
++	unsigned block_info_alt:1;	/* was allocated using alternative strategy */
++	unsigned chunk_bits_alt:1;	/* was allocated using alternative strategy */
++	int chunk_bit_stride;	/* Number of bytes of chunk_bits per block.
++				 * Must be consistent with chunks_per_block.
+ 				 */
+ 
+-	int nErasedBlocks;
+-	int allocationBlock;	/* Current block being allocated off */
+-	__u32 allocationPage;
+-	int allocationBlockFinder;	/* Used to search for next allocation block */
+-
+-	/* Runtime state */
+-	int nTnodesCreated;
+-	yaffs_Tnode *freeTnodes;
+-	int nFreeTnodes;
+-	yaffs_TnodeList *allocatedTnodeList;
+-
+-	int isDoingGC;
+-	int gcBlock;
+-	int gcChunk;
+-
+-	int nObjectsCreated;
+-	yaffs_Object *freeObjects;
+-	int nFreeObjects;
+-
+-	int nHardLinks;
+-
+-	yaffs_ObjectList *allocatedObjectList;
+-
+-	yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS];
+-
+-	int nFreeChunks;
+-
+-	int currentDirtyChecker;	/* Used to find current dirtiest block */
+-
+-	__u32 *gcCleanupList;	/* objects to delete at the end of a GC. */
+-	int nonAggressiveSkip;	/* GC state/mode */
+-
+-	/* Statistcs */
+-	int nPageWrites;
+-	int nPageReads;
+-	int nBlockErasures;
+-	int nErasureFailures;
+-	int nGCCopies;
+-	int garbageCollections;
+-	int passiveGarbageCollections;
+-	int nRetriedWrites;
+-	int nRetiredBlocks;
+-	int eccFixed;
+-	int eccUnfixed;
+-	int tagsEccFixed;
+-	int tagsEccUnfixed;
+-	int nDeletions;
+-	int nUnmarkedDeletions;
+-
+-	int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */
++	int n_erased_blocks;
++	int alloc_block;	/* Current block being allocated off */
++	__u32 alloc_page;
++	int alloc_block_finder;	/* Used to search for next allocation block */
++
++	/* Object and Tnode memory management */
++	void *allocator;
++	int n_obj;
++	int n_tnodes;
++
++	int n_hardlinks;
++
++	yaffs_obj_bucket obj_bucket[YAFFS_NOBJECT_BUCKETS];
++	__u32 bucket_finder;
++
++	int n_free_chunks;
++
++	/* Garbage collection control */
++	__u32 *gc_cleanup_list;	/* objects to delete at the end of a GC. */
++	__u32 n_clean_ups;
++
++	unsigned has_pending_prioritised_gc; /* We think this device might have pending prioritised gcs */
++	unsigned gc_disable;
++	unsigned gc_block_finder;
++	unsigned gc_dirtiest;
++	unsigned gc_pages_in_use;
++	unsigned gc_not_done;
++	unsigned gc_block;
++	unsigned gc_chunk;
++	unsigned gc_skip;
+ 
+ 	/* Special directories */
+-	yaffs_Object *rootDir;
+-	yaffs_Object *lostNFoundDir;
++	yaffs_obj_t *root_dir;
++	yaffs_obj_t *lost_n_found;
+ 
+ 	/* Buffer areas for storing data to recover from write failures TODO
+-	 *      __u8            bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK];
+-	 *      yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK];
++	 *      __u8            buffered_data[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK];
++	 *      yaffs_spare buffered_spare[YAFFS_CHUNKS_PER_BLOCK];
+ 	 */
+ 
+-	int bufferedBlock;	/* Which block is buffered here? */
+-	int doingBufferedBlockRewrite;
+-
+-	yaffs_ChunkCache *srCache;
+-	int srLastUse;
++	int buffered_block;	/* Which block is buffered here? */
++	int doing_buffered_block_rewrite;
+ 
+-	int cacheHits;
++	yaffs_cache_t *cache;
++	int cache_last_use;
+ 
+ 	/* Stuff for background deletion and unlinked files.*/
+-	yaffs_Object *unlinkedDir;	/* Directory where unlinked and deleted files live. */
+-	yaffs_Object *deletedDir;	/* Directory where deleted objects are sent to disappear. */
+-	yaffs_Object *unlinkedDeletion;	/* Current file being background deleted.*/
+-	int nDeletedFiles;		/* Count of files awaiting deletion;*/
+-	int nUnlinkedFiles;		/* Count of unlinked files. */
+-	int nBackgroundDeletions;	/* Count of background deletions. */
+-
++	yaffs_obj_t *unlinked_dir;	/* Directory where unlinked and deleted files live. */
++	yaffs_obj_t *del_dir;	/* Directory where deleted objects are sent to disappear. */
++	yaffs_obj_t *unlinked_deletion;	/* Current file being background deleted.*/
++	int n_deleted_files;		/* Count of files awaiting deletion;*/
++	int n_unlinked_files;		/* Count of unlinked files. */
++	int n_bg_deletions;	/* Count of background deletions. */
+ 
+ 	/* Temporary buffer management */
+-	yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS];
+-	int maxTemp;
+-	int tempInUse;
+-	int unmanagedTempAllocations;
+-	int unmanagedTempDeallocations;
++	yaffs_buffer_t temp_buffer[YAFFS_N_TEMP_BUFFERS];
++	int max_temp;
++	int temp_in_use;
++	int unmanaged_buffer_allocs;
++	int unmanaged_buffer_deallocs;
+ 
+ 	/* yaffs2 runtime stuff */
+-	unsigned sequenceNumber;	/* Sequence number of currently allocating block */
+-	unsigned oldestDirtySequence;
++	unsigned seq_number;	/* Sequence number of currently allocating block */
++	unsigned oldest_dirty_seq;
++	unsigned oldest_dirty_block;
++
++	/* Block refreshing */
++	int refresh_skip;	/* A skip down counter. Refresh happens when this gets to zero. */
++
++	/* Dirty directory handling */
++	struct ylist_head dirty_dirs; /* List of dirty directories */
++
++
++	/* Statistcs */
++	__u32 n_page_writes;
++	__u32 n_page_reads;
++	__u32 n_erasures;
++	__u32 n_erase_failures;
++	__u32 n_gc_copies;
++	__u32 all_gcs;
++	__u32 passive_gc_count;
++	__u32 oldest_dirty_gc_count;
++	__u32 n_gc_blocks;
++	__u32 bg_gcs;
++	__u32 n_retired_writes;
++	__u32 n_retired_blocks;
++	__u32 n_ecc_fixed;
++	__u32 n_ecc_unfixed;
++	__u32 n_tags_ecc_fixed;
++	__u32 n_tags_ecc_unfixed;
++	__u32 n_deletions;
++	__u32 n_unmarked_deletions;
++	__u32 refresh_count;
++	__u32 cache_hits;
+ 
+ };
+ 
+-typedef struct yaffs_DeviceStruct yaffs_Device;
++typedef struct yaffs_dev_s yaffs_dev_t;
+ 
+ /* The static layout of block usage etc is stored in the super block header */
+ typedef struct {
+ 	int StructType;
+ 	int version;
+-	int checkpointStartBlock;
+-	int checkpointEndBlock;
+-	int startBlock;
+-	int endBlock;
++	int checkpt_start_block;
++	int checkpt_end_block;
++	int start_block;
++	int end_block;
+ 	int rfu[100];
+-} yaffs_SuperBlockHeader;
++} yaffs_sb_header;
+ 
+ /* The CheckpointDevice structure holds the device information that changes at runtime and
+  * must be preserved over unmount/mount cycles.
+  */
+ typedef struct {
+-	int structType;
+-	int nErasedBlocks;
+-	int allocationBlock;	/* Current block being allocated off */
+-	__u32 allocationPage;
+-	int nFreeChunks;
+-
+-	int nDeletedFiles;		/* Count of files awaiting deletion;*/
+-	int nUnlinkedFiles;		/* Count of unlinked files. */
+-	int nBackgroundDeletions;	/* Count of background deletions. */
++	int struct_type;
++	int n_erased_blocks;
++	int alloc_block;	/* Current block being allocated off */
++	__u32 alloc_page;
++	int n_free_chunks;
++
++	int n_deleted_files;		/* Count of files awaiting deletion;*/
++	int n_unlinked_files;		/* Count of unlinked files. */
++	int n_bg_deletions;	/* Count of background deletions. */
+ 
+ 	/* yaffs2 runtime stuff */
+-	unsigned sequenceNumber;	/* Sequence number of currently allocating block */
+-	unsigned oldestDirtySequence;
++	unsigned seq_number;	/* Sequence number of currently allocating block */
+ 
+-} yaffs_CheckpointDevice;
++} yaffs_checkpt_dev_t;
+ 
+ 
+ typedef struct {
+-	int structType;
++	int struct_type;
+ 	__u32 magic;
+ 	__u32 version;
+ 	__u32 head;
+-} yaffs_CheckpointValidity;
++} yaffs_checkpt_validty_t;
++
++
++struct yaffs_shadow_fixer_s {
++	int obj_id;
++	int shadowed_id;
++	struct yaffs_shadow_fixer_s *next;
++};
++
++/* Structure for doing xattr modifications */
++typedef struct {
++	int set; /* If 0 then this is a deletion */
++	const YCHAR *name;
++	const void *data;
++	int size;
++	int flags;
++	int result;
++}yaffs_xattr_mod;
+ 
+ 
+ /*----------------------- YAFFS Functions -----------------------*/
+ 
+-int yaffs_GutsInitialise(yaffs_Device *dev);
+-void yaffs_Deinitialise(yaffs_Device *dev);
++int yaffs_guts_initialise(yaffs_dev_t *dev);
++void yaffs_deinitialise(yaffs_dev_t *dev);
+ 
+-int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev);
++int yaffs_get_n_free_chunks(yaffs_dev_t *dev);
+ 
+-int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName,
+-		       yaffs_Object *newDir, const YCHAR *newName);
++int yaffs_rename_obj(yaffs_obj_t *old_dir, const YCHAR *old_name,
++		       yaffs_obj_t *new_dir, const YCHAR *new_name);
+ 
+-int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name);
+-int yaffs_DeleteObject(yaffs_Object *obj);
++int yaffs_unlinker(yaffs_obj_t *dir, const YCHAR *name);
++int yaffs_del_obj(yaffs_obj_t *obj);
+ 
+-int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize);
+-int yaffs_GetObjectFileLength(yaffs_Object *obj);
+-int yaffs_GetObjectInode(yaffs_Object *obj);
+-unsigned yaffs_GetObjectType(yaffs_Object *obj);
+-int yaffs_GetObjectLinkCount(yaffs_Object *obj);
++int yaffs_get_obj_name(yaffs_obj_t *obj, YCHAR *name, int buffer_size);
++int yaffs_get_obj_length(yaffs_obj_t *obj);
++int yaffs_get_obj_inode(yaffs_obj_t *obj);
++unsigned yaffs_get_obj_type(yaffs_obj_t *obj);
++int yaffs_get_obj_link_count(yaffs_obj_t *obj);
+ 
+-int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr);
+-int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr);
++int yaffs_set_attribs(yaffs_obj_t *obj, struct iattr *attr);
++int yaffs_get_attribs(yaffs_obj_t *obj, struct iattr *attr);
+ 
+ /* File operations */
+-int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset,
+-				int nBytes);
+-int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset,
+-				int nBytes, int writeThrough);
+-int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize);
++int yaffs_file_rd(yaffs_obj_t *obj, __u8 *buffer, loff_t offset,
++				int n_bytes);
++int yaffs_wr_file(yaffs_obj_t *obj, const __u8 *buffer, loff_t offset,
++				int n_bytes, int write_trhrough);
++int yaffs_resize_file(yaffs_obj_t *obj, loff_t new_size);
+ 
+-yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name,
++yaffs_obj_t *yaffs_create_file(yaffs_obj_t *parent, const YCHAR *name,
+ 				__u32 mode, __u32 uid, __u32 gid);
+-int yaffs_FlushFile(yaffs_Object *obj, int updateTime);
++
++int yaffs_flush_file(yaffs_obj_t *obj, int update_time, int data_sync);
+ 
+ /* Flushing and checkpointing */
+-void yaffs_FlushEntireDeviceCache(yaffs_Device *dev);
++void yaffs_flush_whole_cache(yaffs_dev_t *dev);
+ 
+-int yaffs_CheckpointSave(yaffs_Device *dev);
+-int yaffs_CheckpointRestore(yaffs_Device *dev);
++int yaffs_checkpoint_save(yaffs_dev_t *dev);
++int yaffs_checkpoint_restore(yaffs_dev_t *dev);
+ 
+ /* Directory operations */
+-yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name,
++yaffs_obj_t *yaffs_create_dir(yaffs_obj_t *parent, const YCHAR *name,
+ 				__u32 mode, __u32 uid, __u32 gid);
+-yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name);
+-int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir,
+-				   int (*fn) (yaffs_Object *));
++yaffs_obj_t *yaffs_find_by_name(yaffs_obj_t *the_dir, const YCHAR *name);
++int yaffs_ApplyToDirectoryChildren(yaffs_obj_t *the_dir,
++				   int (*fn) (yaffs_obj_t *));
+ 
+-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number);
++yaffs_obj_t *yaffs_find_by_number(yaffs_dev_t *dev, __u32 number);
+ 
+ /* Link operations */
+-yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name,
+-			 yaffs_Object *equivalentObject);
++yaffs_obj_t *yaffs_link_obj(yaffs_obj_t *parent, const YCHAR *name,
++			 yaffs_obj_t *equiv_obj);
+ 
+-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj);
++yaffs_obj_t *yaffs_get_equivalent_obj(yaffs_obj_t *obj);
+ 
+ /* Symlink operations */
+-yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name,
++yaffs_obj_t *yaffs_create_symlink(yaffs_obj_t *parent, const YCHAR *name,
+ 				 __u32 mode, __u32 uid, __u32 gid,
+ 				 const YCHAR *alias);
+-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj);
++YCHAR *yaffs_get_symlink_alias(yaffs_obj_t *obj);
+ 
+ /* Special inodes (fifos, sockets and devices) */
+-yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name,
++yaffs_obj_t *yaffs_create_special(yaffs_obj_t *parent, const YCHAR *name,
+ 				 __u32 mode, __u32 uid, __u32 gid, __u32 rdev);
+ 
++
++int yaffs_set_xattrib(yaffs_obj_t *obj, const YCHAR *name, const void * value, int size, int flags);
++int yaffs_get_xattrib(yaffs_obj_t *obj, const YCHAR *name, void *value, int size);
++int yaffs_list_xattrib(yaffs_obj_t *obj, char *buffer, int size);
++int yaffs_remove_xattrib(yaffs_obj_t *obj, const YCHAR *name);
++
+ /* Special directories */
+-yaffs_Object *yaffs_Root(yaffs_Device *dev);
+-yaffs_Object *yaffs_LostNFound(yaffs_Device *dev);
++yaffs_obj_t *yaffs_root(yaffs_dev_t *dev);
++yaffs_obj_t *yaffs_lost_n_found(yaffs_dev_t *dev);
+ 
+ #ifdef CONFIG_YAFFS_WINCE
+ /* CONFIG_YAFFS_WINCE special stuff */
+-void yfsd_WinFileTimeNow(__u32 target[2]);
++void yfsd_win_file_time_now(__u32 target[2]);
+ #endif
+ 
+-#ifdef __KERNEL__
++void yaffs_handle_defered_free(yaffs_obj_t *obj);
+ 
+-void yaffs_HandleDeferedFree(yaffs_Object *obj);
+-#endif
++void yaffs_update_dirty_dirs(yaffs_dev_t *dev);
++
++int yaffs_bg_gc(yaffs_dev_t *dev, unsigned urgency);
+ 
+ /* Debug dump  */
+-int yaffs_DumpObject(yaffs_Object *obj);
++int yaffs_dump_obj(yaffs_obj_t *obj);
+ 
+-void yaffs_GutsTest(yaffs_Device *dev);
++void yaffs_guts_test(yaffs_dev_t *dev);
+ 
+-/* A few useful functions */
+-void yaffs_InitialiseTags(yaffs_ExtendedTags *tags);
+-void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn);
+-int yaffs_CheckFF(__u8 *buffer, int nBytes);
+-void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi);
++/* A few useful functions to be used within the core files*/
++void yaffs_chunk_del(yaffs_dev_t *dev, int chunk_id, int mark_flash, int lyn);
++int yaffs_check_ff(__u8 *buffer, int n_bytes);
++void yaffs_handle_chunk_error(yaffs_dev_t *dev, yaffs_block_info_t *bi);
++
++__u8 *yaffs_get_temp_buffer(yaffs_dev_t *dev, int line_no);
++void yaffs_release_temp_buffer(yaffs_dev_t *dev, __u8 *buffer, int line_no);
++
++yaffs_obj_t *yaffs_find_or_create_by_number(yaffs_dev_t *dev,
++					        int number,
++					        yaffs_obj_type type);
++int yaffs_put_chunk_in_file(yaffs_obj_t *in, int inode_chunk,
++			        int nand_chunk, int in_scan);
++void yaffs_set_obj_name(yaffs_obj_t *obj, const YCHAR *name);
++void yaffs_set_obj_name_from_oh(yaffs_obj_t *obj, const yaffs_obj_header *oh);
++void yaffs_add_obj_to_dir(yaffs_obj_t *directory,
++					yaffs_obj_t *obj);
++YCHAR *yaffs_clone_str(const YCHAR *str);
++void yaffs_link_fixup(yaffs_dev_t *dev, yaffs_obj_t *hard_list);
++void yaffs_block_became_dirty(yaffs_dev_t *dev, int block_no);
++int yaffs_update_oh(yaffs_obj_t *in, const YCHAR *name,
++				int force, int is_shrink, int shadows,
++                                yaffs_xattr_mod *xop);
++void yaffs_handle_shadowed_obj(yaffs_dev_t *dev, int obj_id,
++				int backward_scanning);
++int yaffs_check_alloc_available(yaffs_dev_t *dev, int n_chunks);
++yaffs_tnode_t *yaffs_get_tnode(yaffs_dev_t *dev);
++yaffs_tnode_t *yaffs_add_find_tnode_0(yaffs_dev_t *dev,
++					yaffs_file_s *file_struct,
++					__u32 chunk_id,
++					yaffs_tnode_t *passed_tn);
++
++int yaffs_do_file_wr(yaffs_obj_t *in, const __u8 *buffer, loff_t offset,
++			int n_bytes, int write_trhrough);
++void yaffs_resize_file_down( yaffs_obj_t *obj, loff_t new_size);
++void yaffs_skip_rest_of_block(yaffs_dev_t *dev);
++
++int yaffs_count_free_chunks(yaffs_dev_t *dev);
++
++yaffs_tnode_t *yaffs_find_tnode_0(yaffs_dev_t *dev,
++				yaffs_file_s *file_struct,
++				__u32 chunk_id);
+ 
+-__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo);
+-void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo);
++__u32 yaffs_get_group_base(yaffs_dev_t *dev, yaffs_tnode_t *tn, unsigned pos);
+ 
+ #endif
+--- a/fs/yaffs2/yaffsinterface.h
++++ b/fs/yaffs2/yaffsinterface.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -16,6 +16,6 @@
+ #ifndef __YAFFSINTERFACE_H__
+ #define __YAFFSINTERFACE_H__
+ 
+-int yaffs_Initialise(unsigned nBlocks);
++int yaffs_initialise(unsigned nBlocks);
+ 
+ #endif
+--- /dev/null
++++ b/fs/yaffs2/yaffs_linux_allocator.c
+@@ -0,0 +1,200 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ *
++ * Note: Tis code is currently unused. Being checked in in case it becomes useful.
++ */
++
++
++#include "yaffs_allocator.h"
++#include "yaffs_guts.h"
++#include "yaffs_trace.h"
++#include "yportenv.h"
++#include "yaffs_linux.h"
++/*
++ * Start out with the same allocator as yaffs direct.
++ * Todo: Change to Linux slab allocator.
++ */
++
++
++
++#define NAMELEN  20
++struct yaffs_AllocatorStruct {
++	char tnode_name[NAMELEN+1];
++	char object_name[NAMELEN+1];
++	struct kmem_cache *tnode_cache;
++	struct kmem_cache *object_cache;
++};
++
++typedef struct yaffs_AllocatorStruct yaffs_Allocator;
++
++int mount_id;
++
++void yaffs_deinit_raw_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator = (yaffs_Allocator *)dev->allocator;
++
++	T(YAFFS_TRACE_ALLOCATE,(TSTR("Deinitialising yaffs allocator\n")));
++
++	if(allocator){
++		if(allocator->tnode_cache){
++			kmem_cache_destroy(allocator->tnode_cache);
++			allocator->tnode_cache = NULL;
++		} else {
++			T(YAFFS_TRACE_ALWAYS,
++				(TSTR("NULL tnode cache\n")));
++			YBUG();
++		}
++
++		if(allocator->object_cache){
++			kmem_cache_destroy(allocator->object_cache);
++			allocator->object_cache = NULL;
++		} else {
++			T(YAFFS_TRACE_ALWAYS,
++				(TSTR("NULL object cache\n")));
++			YBUG();
++		}
++
++		YFREE(allocator);
++
++	} else {
++		T(YAFFS_TRACE_ALWAYS,
++			(TSTR("Deinitialising NULL allocator\n")));
++		YBUG();
++	}
++	dev->allocator = NULL;
++}
++
++
++static void fake_ctor0(void *data){data = data;}
++static void fake_ctor1(void *data){data = data;}
++static void fake_ctor2(void *data){data = data;}
++static void fake_ctor3(void *data){data = data;}
++static void fake_ctor4(void *data){data = data;}
++static void fake_ctor5(void *data){data = data;}
++static void fake_ctor6(void *data){data = data;}
++static void fake_ctor7(void *data){data = data;}
++static void fake_ctor8(void *data){data = data;}
++static void fake_ctor9(void *data){data = data;}
++
++static void (*fake_ctor_list[10]) (void *) = {
++	fake_ctor0,
++	fake_ctor1,
++	fake_ctor2,
++	fake_ctor3,
++	fake_ctor4,
++	fake_ctor5,
++	fake_ctor6,
++	fake_ctor7,
++	fake_ctor8,
++	fake_ctor9,
++};
++
++void yaffs_init_raw_tnodes_and_objs(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator;
++	unsigned mount_id = yaffs_dev_to_lc(dev)->mount_id;
++
++	T(YAFFS_TRACE_ALLOCATE,(TSTR("Initialising yaffs allocator\n")));
++
++	if(dev->allocator)
++		YBUG();
++	else if(mount_id >= 10){
++		T(YAFFS_TRACE_ALWAYS,(TSTR("Bad mount_id %u\n"),mount_id));
++	} else {
++		 allocator = YMALLOC(sizeof(yaffs_Allocator));
++		 memset(allocator,0,sizeof(yaffs_Allocator));
++		 dev->allocator = allocator;
++
++		if(!dev->allocator){
++			T(YAFFS_TRACE_ALWAYS,
++				(TSTR("yaffs allocator creation failed\n")));
++			YBUG();
++			return;
++
++		}
++
++		sprintf(allocator->tnode_name,"yaffs_t_%u",mount_id);
++		sprintf(allocator->object_name,"yaffs_o_%u",mount_id);
++
++		allocator->tnode_cache =
++			kmem_cache_create(allocator->tnode_name,
++				dev->tnode_size,
++				0, 0,
++				fake_ctor_list[mount_id]);
++		if(allocator->tnode_cache)
++			T(YAFFS_TRACE_ALLOCATE,
++				(TSTR("tnode cache \"%s\" %p\n"),
++				allocator->tnode_name,allocator->tnode_cache));
++		else {
++			T(YAFFS_TRACE_ALWAYS,
++				(TSTR("yaffs cache creation failed\n")));
++			YBUG();
++		}
++
++
++		allocator->object_cache = 
++			kmem_cache_create(allocator->object_name,
++				sizeof(yaffs_obj_t),
++				0, 0,
++				fake_ctor_list[mount_id]);
++
++		if(allocator->object_cache)
++			T(YAFFS_TRACE_ALLOCATE,
++				(TSTR("object cache \"%s\" %p\n"),
++				allocator->object_name,allocator->object_cache));
++
++		else {
++			T(YAFFS_TRACE_ALWAYS,
++				(TSTR("yaffs cache creation failed\n")));
++			YBUG();
++		}
++	} 
++}
++
++
++yaffs_tnode_t *yaffs_alloc_raw_tnode(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++	if(!allocator || !allocator->tnode_cache){
++		YBUG();
++		return NULL;
++	}
++	return kmem_cache_alloc(allocator->tnode_cache, GFP_NOFS);
++}
++
++void yaffs_free_raw_tnode(yaffs_dev_t *dev, yaffs_tnode_t *tn)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++	kmem_cache_free(allocator->tnode_cache,tn);
++}
++
++yaffs_obj_t *yaffs_alloc_raw_obj(yaffs_dev_t *dev)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++	if(!allocator){
++		YBUG();
++		return NULL;
++	}
++	if(!allocator->object_cache){
++		YBUG();
++		return NULL;
++	}
++	return kmem_cache_alloc(allocator->object_cache, GFP_NOFS);
++}
++
++void yaffs_free_raw_obj(yaffs_dev_t *dev, yaffs_obj_t *obj)
++{
++	yaffs_Allocator *allocator = dev->allocator;
++	kmem_cache_free(allocator->object_cache,obj);
++}
+--- /dev/null
++++ b/fs/yaffs2/yaffs_linux.h
+@@ -0,0 +1,43 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++
++#ifndef __YAFFS_LINUX_H__
++#define __YAFFS_LINUX_H__
++
++#include "devextras.h"
++#include "yportenv.h"
++
++struct yaffs_LinuxContext {
++	struct ylist_head	contextList; /* List of these we have mounted */
++	struct yaffs_dev_s *dev;
++	struct super_block * superBlock;
++	struct task_struct *bgThread; /* Background thread for this device */
++	int bgRunning;
++        struct semaphore grossLock;     /* Gross locking semaphore */
++	__u8 *spareBuffer;      /* For mtdif2 use. Don't know the size of the buffer
++				 * at compile time so we have to allocate it.
++				 */
++	struct ylist_head searchContexts;
++	void (*putSuperFunc)(struct super_block *sb);
++
++	struct task_struct *readdirProcess;
++	unsigned mount_id;
++};
++
++#define yaffs_dev_to_lc(dev) ((struct yaffs_LinuxContext *)((dev)->os_context))
++#define yaffs_dev_to_mtd(dev) ((struct mtd_info *)((dev)->driver_context))
++
++#endif
++
+--- /dev/null
++++ b/fs/yaffs2/yaffs_list.h
+@@ -0,0 +1,127 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++
++/*
++ * This file is just holds extra declarations of macros that would normally
++ * be providesd in the Linux kernel. These macros have been written from
++ * scratch but are functionally equivalent to the Linux ones.
++ *
++ */
++
++#ifndef __YAFFS_LIST_H__
++#define __YAFFS_LIST_H__
++
++
++#include "yportenv.h"
++
++/*
++ * This is a simple doubly linked list implementation that matches the
++ * way the Linux kernel doubly linked list implementation works.
++ */
++
++struct ylist_head {
++	struct ylist_head *next; /* next in chain */
++	struct ylist_head *prev; /* previous in chain */
++};
++
++
++/* Initialise a static list */
++#define YLIST_HEAD(name) \
++struct ylist_head name = { &(name), &(name)}
++
++
++
++/* Initialise a list head to an empty list */
++#define YINIT_LIST_HEAD(p) \
++do { \
++	(p)->next = (p);\
++	(p)->prev = (p); \
++} while (0)
++
++
++/* Add an element to a list */
++static Y_INLINE void ylist_add(struct ylist_head *newEntry,
++				struct ylist_head *list)
++{
++	struct ylist_head *listNext = list->next;
++
++	list->next = newEntry;
++	newEntry->prev = list;
++	newEntry->next = listNext;
++	listNext->prev = newEntry;
++
++}
++
++static Y_INLINE void ylist_add_tail(struct ylist_head *newEntry,
++				 struct ylist_head *list)
++{
++	struct ylist_head *listPrev = list->prev;
++
++	list->prev = newEntry;
++	newEntry->next = list;
++	newEntry->prev = listPrev;
++	listPrev->next = newEntry;
++
++}
++
++
++/* Take an element out of its current list, with or without
++ * reinitialising the links.of the entry*/
++static Y_INLINE void ylist_del(struct ylist_head *entry)
++{
++	struct ylist_head *listNext = entry->next;
++	struct ylist_head *listPrev = entry->prev;
++
++	listNext->prev = listPrev;
++	listPrev->next = listNext;
++
++}
++
++static Y_INLINE void ylist_del_init(struct ylist_head *entry)
++{
++	ylist_del(entry);
++	entry->next = entry->prev = entry;
++}
++
++
++/* Test if the list is empty */
++static Y_INLINE int ylist_empty(struct ylist_head *entry)
++{
++	return (entry->next == entry);
++}
++
++
++/* ylist_entry takes a pointer to a list entry and offsets it to that
++ * we can find a pointer to the object it is embedded in.
++ */
++
++
++#define ylist_entry(entry, type, member) \
++	((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member)))
++
++
++/* ylist_for_each and list_for_each_safe  iterate over lists.
++ * ylist_for_each_safe uses temporary storage to make the list delete safe
++ */
++
++#define ylist_for_each(itervar, list) \
++	for (itervar = (list)->next; itervar != (list); itervar = itervar->next)
++
++#define ylist_for_each_safe(itervar, saveVar, list) \
++	for (itervar = (list)->next, saveVar = (list)->next->next; \
++		itervar != (list); itervar = saveVar, saveVar = saveVar->next)
++
++
++#endif
+--- a/fs/yaffs2/yaffs_mtdif1.c
++++ b/fs/yaffs2/yaffs_mtdif1.c
+@@ -2,7 +2,7 @@
+  * YAFFS: Yet another FFS. A NAND-flash specific file system.
+  * yaffs_mtdif1.c  NAND mtd interface functions for small-page NAND.
+  *
+- * Copyright (C) 2002 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * This program is free software; you can redistribute it and/or modify
+@@ -18,15 +18,17 @@
+  *
+  * These functions are invoked via function pointers in yaffs_nand.c.
+  * This replaces functionality provided by functions in yaffs_mtdif.c
+- * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are
++ * and the yaffs_tags_tCompatability functions in yaffs_tagscompat.c that are
+  * called in yaffs_mtdif.c when the function pointers are NULL.
+- * We assume the MTD layer is performing ECC (useNANDECC is true).
++ * We assume the MTD layer is performing ECC (use_nand_ecc is true).
+  */
+ 
+ #include "yportenv.h"
++#include "yaffs_trace.h"
+ #include "yaffs_guts.h"
+ #include "yaffs_packedtags1.h"
+-#include "yaffs_tagscompat.h"	/* for yaffs_CalcTagsECC */
++#include "yaffs_tagscompat.h"	/* for yaffs_calc_tags_ecc */
++#include "yaffs_linux.h"
+ 
+ #include "linux/kernel.h"
+ #include "linux/version.h"
+@@ -36,8 +38,6 @@
+ /* Don't compile this module if we don't have MTD's mtd_oob_ops interface */
+ #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 
+-const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $";
+-
+ #ifndef CONFIG_YAFFS_9BYTE_TAGS
+ # define YTAG1_SIZE 8
+ #else
+@@ -51,12 +51,12 @@ const char *yaffs_mtdif1_c_version = "$I
+  * adjust 'oobfree' to match your existing Yaffs data.
+  *
+  * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the
+- * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to
++ * page_status byte (at NAND spare offset 4) scattered/gathered from/to
+  * the 9th byte.
+  *
+  * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5
+- * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P
+- * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus
++ * We have/need PackedTags1 plus page_status: T0,T1,T2,T3,T4,T5,T6,T7,P
++ * where Tn are the tag bytes, En are MTD's ECC bytes, P is the page_status
+  * byte and B is the small-page bad-block indicator byte.
+  */
+ static struct nand_ecclayout nand_oob_16 = {
+@@ -88,42 +88,40 @@ static struct nand_ecclayout nand_oob_16
+  * Any underlying MTD error results in YAFFS_FAIL.
+  * Returns YAFFS_OK or YAFFS_FAIL.
+  */
+-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
+-	int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags)
++int nandmtd1_WriteChunkWithTagsToNAND(yaffs_dev_t *dev,
++	int nand_chunk, const __u8 *data, const yaffs_ext_tags *etags)
+ {
+-	struct mtd_info *mtd = dev->genericDevice;
+-	int chunkBytes = dev->nDataBytesPerChunk;
+-	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
++	int chunkBytes = dev->data_bytes_per_chunk;
++	loff_t addr = ((loff_t)nand_chunk) * chunkBytes;
+ 	struct mtd_oob_ops ops;
+ 	yaffs_PackedTags1 pt1;
+ 	int retval;
+ 
+-	/* we assume that PackedTags1 and yaffs_Tags are compatible */
++	/* we assume that PackedTags1 and yaffs_tags_t are compatible */
+ 	compile_time_assertion(sizeof(yaffs_PackedTags1) == 12);
+-	compile_time_assertion(sizeof(yaffs_Tags) == 8);
+-
+-	dev->nPageWrites++;
++	compile_time_assertion(sizeof(yaffs_tags_t) == 8);
+ 
+ 	yaffs_PackTags1(&pt1, etags);
+-	yaffs_CalcTagsECC((yaffs_Tags *)&pt1);
++	yaffs_calc_tags_ecc((yaffs_tags_t *)&pt1);
+ 
+ 	/* When deleting a chunk, the upper layer provides only skeletal
+-	 * etags, one with chunkDeleted set.  However, we need to update the
++	 * etags, one with is_deleted set.  However, we need to update the
+ 	 * tags, not erase them completely.  So we use the NAND write property
+ 	 * that only zeroed-bits stick and set tag bytes to all-ones and
+ 	 * zero just the (not) deleted bit.
+ 	 */
+ #ifndef CONFIG_YAFFS_9BYTE_TAGS
+-	if (etags->chunkDeleted) {
++	if (etags->is_deleted) {
+ 		memset(&pt1, 0xff, 8);
+ 		/* clear delete status bit to indicate deleted */
+ 		pt1.deleted = 0;
+ 	}
+ #else
+ 	((__u8 *)&pt1)[8] = 0xff;
+-	if (etags->chunkDeleted) {
++	if (etags->is_deleted) {
+ 		memset(&pt1, 0xff, 8);
+-		/* zero pageStatus byte to indicate deleted */
++		/* zero page_status byte to indicate deleted */
+ 		((__u8 *)&pt1)[8] = 0;
+ 	}
+ #endif
+@@ -137,20 +135,20 @@ int nandmtd1_WriteChunkWithTagsToNAND(ya
+ 
+ 	retval = mtd->write_oob(mtd, addr, &ops);
+ 	if (retval) {
+-		yaffs_trace(YAFFS_TRACE_MTD,
+-			"write_oob failed, chunk %d, mtd error %d\n",
+-			chunkInNAND, retval);
++		T(YAFFS_TRACE_MTD,
++			(TSTR("write_oob failed, chunk %d, mtd error %d"TENDSTR),
++			nand_chunk, retval));
+ 	}
+ 	return retval ? YAFFS_FAIL : YAFFS_OK;
+ }
+ 
+-/* Return with empty ExtendedTags but add eccResult.
++/* Return with empty ExtendedTags but add ecc_result.
+  */
+-static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval)
++static int rettags(yaffs_ext_tags *etags, int ecc_result, int retval)
+ {
+ 	if (etags) {
+ 		memset(etags, 0, sizeof(*etags));
+-		etags->eccResult = eccResult;
++		etags->ecc_result = ecc_result;
+ 	}
+ 	return retval;
+ }
+@@ -158,30 +156,28 @@ static int rettags(yaffs_ExtendedTags *e
+ /* Read a chunk (page) from NAND.
+  *
+  * Caller expects ExtendedTags data to be usable even on error; that is,
+- * all members except eccResult and blockBad are zeroed.
++ * all members except ecc_result and block_bad are zeroed.
+  *
+  *  - Check ECC results for data (if applicable)
+  *  - Check for blank/erased block (return empty ExtendedTags if blank)
+  *  - Check the PackedTags1 mini-ECC (correct if necessary/possible)
+  *  - Convert PackedTags1 to ExtendedTags
+- *  - Update eccResult and blockBad members to refect state.
++ *  - Update ecc_result and block_bad members to refect state.
+  *
+  * Returns YAFFS_OK or YAFFS_FAIL.
+  */
+-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
+-	int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags)
++int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev,
++	int nand_chunk, __u8 *data, yaffs_ext_tags *etags)
+ {
+-	struct mtd_info *mtd = dev->genericDevice;
+-	int chunkBytes = dev->nDataBytesPerChunk;
+-	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
++	int chunkBytes = dev->data_bytes_per_chunk;
++	loff_t addr = ((loff_t)nand_chunk) * chunkBytes;
+ 	int eccres = YAFFS_ECC_RESULT_NO_ERROR;
+ 	struct mtd_oob_ops ops;
+ 	yaffs_PackedTags1 pt1;
+ 	int retval;
+ 	int deleted;
+ 
+-	dev->nPageReads++;
+-
+ 	memset(&ops, 0, sizeof(ops));
+ 	ops.mode = MTD_OOB_AUTO;
+ 	ops.len = (data) ? chunkBytes : 0;
+@@ -200,9 +196,9 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y
+ 	 */
+ 	retval = mtd->read_oob(mtd, addr, &ops);
+ 	if (retval) {
+-		yaffs_trace(YAFFS_TRACE_MTD,
+-			"read_oob failed, chunk %d, mtd error %d\n",
+-			chunkInNAND, retval);
++		T(YAFFS_TRACE_MTD,
++			(TSTR("read_oob failed, chunk %d, mtd error %d"TENDSTR),
++			nand_chunk, retval));
+ 	}
+ 
+ 	switch (retval) {
+@@ -213,23 +209,23 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y
+ 	case -EUCLEAN:
+ 		/* MTD's ECC fixed the data */
+ 		eccres = YAFFS_ECC_RESULT_FIXED;
+-		dev->eccFixed++;
++		dev->n_ecc_fixed++;
+ 		break;
+ 
+ 	case -EBADMSG:
+ 		/* MTD's ECC could not fix the data */
+-		dev->eccUnfixed++;
++		dev->n_ecc_unfixed++;
+ 		/* fall into... */
+ 	default:
+ 		rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0);
+-		etags->blockBad = (mtd->block_isbad)(mtd, addr);
++		etags->block_bad = (mtd->block_isbad)(mtd, addr);
+ 		return YAFFS_FAIL;
+ 	}
+ 
+ 	/* Check for a blank/erased chunk.
+ 	 */
+-	if (yaffs_CheckFF((__u8 *)&pt1, 8)) {
+-		/* when blank, upper layers want eccResult to be <= NO_ERROR */
++	if (yaffs_check_ff((__u8 *)&pt1, 8)) {
++		/* when blank, upper layers want ecc_result to be <= NO_ERROR */
+ 		return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK);
+ 	}
+ 
+@@ -241,37 +237,37 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y
+ 	deleted = !pt1.deleted;
+ 	pt1.deleted = 1;
+ #else
+-	deleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7);
++	deleted = (yaffs_count_bits(((__u8 *)&pt1)[8]) < 7);
+ #endif
+ 
+ 	/* Check the packed tags mini-ECC and correct if necessary/possible.
+ 	 */
+-	retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1);
++	retval = yaffs_check_tags_ecc((yaffs_tags_t *)&pt1);
+ 	switch (retval) {
+ 	case 0:
+ 		/* no tags error, use MTD result */
+ 		break;
+ 	case 1:
+ 		/* recovered tags-ECC error */
+-		dev->tagsEccFixed++;
++		dev->n_tags_ecc_fixed++;
+ 		if (eccres == YAFFS_ECC_RESULT_NO_ERROR)
+ 			eccres = YAFFS_ECC_RESULT_FIXED;
+ 		break;
+ 	default:
+ 		/* unrecovered tags-ECC error */
+-		dev->tagsEccUnfixed++;
++		dev->n_tags_ecc_unfixed++;
+ 		return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL);
+ 	}
+ 
+ 	/* Unpack the tags to extended form and set ECC result.
+-	 * [set shouldBeFF just to keep yaffs_UnpackTags1 happy]
++	 * [set shouldBeFF just to keep yaffs_unpack_tags1 happy]
+ 	 */
+ 	pt1.shouldBeFF = 0xFFFFFFFF;
+-	yaffs_UnpackTags1(etags, &pt1);
+-	etags->eccResult = eccres;
++	yaffs_unpack_tags1(etags, &pt1);
++	etags->ecc_result = eccres;
+ 
+ 	/* Set deleted state */
+-	etags->chunkDeleted = deleted;
++	etags->is_deleted = deleted;
+ 	return YAFFS_OK;
+ }
+ 
+@@ -282,15 +278,15 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y
+  *
+  * Returns YAFFS_OK or YAFFS_FAIL.
+  */
+-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
++int nandmtd1_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no)
+ {
+-	struct mtd_info *mtd = dev->genericDevice;
+-	int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk;
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
++	int blocksize = dev->param.chunks_per_block * dev->data_bytes_per_chunk;
+ 	int retval;
+ 
+-	yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo);
++	T(YAFFS_TRACE_BAD_BLOCKS,(TSTR("marking block %d bad"TENDSTR), block_no));
+ 
+-	retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo);
++	retval = mtd->block_markbad(mtd, (loff_t)blocksize * block_no);
+ 	return (retval) ? YAFFS_FAIL : YAFFS_OK;
+ }
+ 
+@@ -305,9 +301,9 @@ static int nandmtd1_TestPrerequists(stru
+ 	int oobavail = mtd->ecclayout->oobavail;
+ 
+ 	if (oobavail < YTAG1_SIZE) {
+-		yaffs_trace(YAFFS_TRACE_ERROR,
+-			"mtd device has only %d bytes for tags, need %d\n",
+-			oobavail, YTAG1_SIZE);
++		T(YAFFS_TRACE_ERROR,
++			(TSTR("mtd device has only %d bytes for tags, need %d"TENDSTR),
++			oobavail, YTAG1_SIZE));
+ 		return YAFFS_FAIL;
+ 	}
+ 	return YAFFS_OK;
+@@ -322,13 +318,13 @@ static int nandmtd1_TestPrerequists(stru
+  *
+  * Always returns YAFFS_OK.
+  */
+-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-	yaffs_BlockState *pState, __u32 *pSequenceNumber)
++int nandmtd1_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no,
++	yaffs_block_state_t *pState, __u32 *pSequenceNumber)
+ {
+-	struct mtd_info *mtd = dev->genericDevice;
+-	int chunkNo = blockNo * dev->nChunksPerBlock;
+-	loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk;
+-	yaffs_ExtendedTags etags;
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
++	int chunkNo = block_no * dev->param.chunks_per_block;
++	loff_t addr = (loff_t)chunkNo * dev->data_bytes_per_chunk;
++	yaffs_ext_tags etags;
+ 	int state = YAFFS_BLOCK_STATE_DEAD;
+ 	int seqnum = 0;
+ 	int retval;
+@@ -340,17 +336,17 @@ int nandmtd1_QueryNANDBlock(struct yaffs
+ 		return YAFFS_FAIL;
+ 
+ 	retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags);
+-	etags.blockBad = (mtd->block_isbad)(mtd, addr);
+-	if (etags.blockBad) {
+-		yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
+-			"block %d is marked bad\n", blockNo);
++	etags.block_bad = (mtd->block_isbad)(mtd, addr);
++	if (etags.block_bad) {
++		T(YAFFS_TRACE_BAD_BLOCKS,
++			(TSTR("block %d is marked bad"TENDSTR), block_no));
+ 		state = YAFFS_BLOCK_STATE_DEAD;
+-	} else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) {
++	} else if (etags.ecc_result != YAFFS_ECC_RESULT_NO_ERROR) {
+ 		/* bad tags, need to look more closely */
+ 		state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
+-	} else if (etags.chunkUsed) {
++	} else if (etags.chunk_used) {
+ 		state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
+-		seqnum = etags.sequenceNumber;
++		seqnum = etags.seq_number;
+ 	} else {
+ 		state = YAFFS_BLOCK_STATE_EMPTY;
+ 	}
+--- a/fs/yaffs2/yaffs_mtdif1-compat.c
++++ /dev/null
+@@ -1,434 +0,0 @@
+-From ian@brightstareng.com Fri May 18 15:06:49 2007
+-From ian@brightstareng.com Fri May 18 15:08:21 2007
+-Received: from 206.173.66.57.ptr.us.xo.net ([206.173.66.57] helo=zebra.brightstareng.com)
+-	by apollo.linkchoose.co.uk with esmtp (Exim 4.60)
+-	(envelope-from <ian@brightstareng.com>)
+-	id 1Hp380-00011e-T6
+-	for david.goodenough@linkchoose.co.uk; Fri, 18 May 2007 15:08:21 +0100
+-Received: from localhost (localhost.localdomain [127.0.0.1])
+-	by zebra.brightstareng.com (Postfix) with ESMTP
+-	id 4819F28C004; Fri, 18 May 2007 10:07:49 -0400 (EDT)
+-Received: from zebra.brightstareng.com ([127.0.0.1])
+- by localhost (zebra [127.0.0.1]) (amavisd-new, port 10024) with ESMTP
+- id 05328-06; Fri, 18 May 2007 10:07:16 -0400 (EDT)
+-Received: from pippin (unknown [192.168.1.25])
+-	by zebra.brightstareng.com (Postfix) with ESMTP
+-	id 8BEF528C1BC; Fri, 18 May 2007 10:06:53 -0400 (EDT)
+-From: Ian McDonnell <ian@brightstareng.com>
+-To: David Goodenough <david.goodenough@linkchoose.co.uk>
+-Subject: Re: something tested this time -- yaffs_mtdif1-compat.c
+-Date: Fri, 18 May 2007 10:06:49 -0400
+-User-Agent: KMail/1.9.1
+-References: <200705142207.06909.ian@brightstareng.com> <200705171131.53536.ian@brightstareng.com> <200705181334.32166.david.goodenough@linkchoose.co.uk>
+-In-Reply-To: <200705181334.32166.david.goodenough@linkchoose.co.uk>
+-Cc: Andrea Conti <alyf@alyf.net>,
+- Charles Manning <manningc2@actrix.gen.nz>
+-MIME-Version: 1.0
+-Content-Type: Multipart/Mixed;
+-  boundary="Boundary-00=_5LbTGmt62YoutxM"
+-Message-Id: <200705181006.49860.ian@brightstareng.com>
+-X-Virus-Scanned: by amavisd-new at brightstareng.com
+-Status: R
+-X-Status: NT
+-X-KMail-EncryptionState:
+-X-KMail-SignatureState:
+-X-KMail-MDN-Sent:
+-
+---Boundary-00=_5LbTGmt62YoutxM
+-Content-Type: text/plain;
+-  charset="iso-8859-15"
+-Content-Transfer-Encoding: 7bit
+-Content-Disposition: inline
+-
+-David, Andrea,
+-
+-On Friday 18 May 2007 08:34, you wrote:
+-> Yea team.  With this fix in place (I put it in the wrong place
+-> at first) I can now mount and ls the Yaffs partition without
+-> an error messages!
+-
+-Good news!
+-
+-Attached is a newer yaffs_mtdif1.c with a bandaid to help the
+-2.6.18 and 2.6.19 versions of MTD not trip on the oob read.
+-See the LINUX_VERSION_CODE conditional in
+-nandmtd1_ReadChunkWithTagsFromNAND.
+-
+--imcd
+-
+---Boundary-00=_5LbTGmt62YoutxM
+-Content-Type: text/x-csrc;
+-  charset="iso-8859-15";
+-  name="yaffs_mtdif1.c"
+-Content-Transfer-Encoding: 7bit
+-Content-Disposition: attachment;
+-	filename="yaffs_mtdif1.c"
+-
+-/*
+- * YAFFS: Yet another FFS. A NAND-flash specific file system.
+- * yaffs_mtdif1.c  NAND mtd interface functions for small-page NAND.
+- *
+- * Copyright (C) 2002 Aleph One Ltd.
+- *   for Toby Churchill Ltd and Brightstar Engineering
+- *
+- * This program is free software; you can redistribute it and/or modify
+- * it under the terms of the GNU General Public License version 2 as
+- * published by the Free Software Foundation.
+- */
+-
+-/*
+- * This module provides the interface between yaffs_nand.c and the
+- * MTD API.  This version is used when the MTD interface supports the
+- * 'mtd_oob_ops' style calls to read_oob and write_oob, circa 2.6.17,
+- * and we have small-page NAND device.
+- *
+- * These functions are invoked via function pointers in yaffs_nand.c.
+- * This replaces functionality provided by functions in yaffs_mtdif.c
+- * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are
+- * called in yaffs_mtdif.c when the function pointers are NULL.
+- * We assume the MTD layer is performing ECC (useNANDECC is true).
+- */
+-
+-#include "yportenv.h"
+-#include "yaffs_guts.h"
+-#include "yaffs_packedtags1.h"
+-#include "yaffs_tagscompat.h"	// for yaffs_CalcTagsECC
+-
+-#include "linux/kernel.h"
+-#include "linux/version.h"
+-#include "linux/types.h"
+-#include "linux/mtd/mtd.h"
+-
+-/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */
+-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17))
+-
+-const char *yaffs_mtdif1_c_version = "$Id$";
+-
+-#ifndef CONFIG_YAFFS_9BYTE_TAGS
+-# define YTAG1_SIZE 8
+-#else
+-# define YTAG1_SIZE 9
+-#endif
+-
+-#if 0
+-/* Use the following nand_ecclayout with MTD when using
+- * CONFIG_YAFFS_9BYTE_TAGS and the older on-NAND tags layout.
+- * If you have existing Yaffs images and the byte order differs from this,
+- * adjust 'oobfree' to match your existing Yaffs data.
+- *
+- * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the
+- * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to
+- * the 9th byte.
+- *
+- * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5
+- * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P
+- * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus
+- * byte and B is the small-page bad-block indicator byte.
+- */
+-static struct nand_ecclayout nand_oob_16 = {
+-	.eccbytes = 6,
+-	.eccpos = { 8, 9, 10, 13, 14, 15 },
+-	.oobavail = 9,
+-	.oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
+-};
+-#endif
+-
+-/* Write a chunk (page) of data to NAND.
+- *
+- * Caller always provides ExtendedTags data which are converted to a more
+- * compact (packed) form for storage in NAND.  A mini-ECC runs over the
+- * contents of the tags meta-data; used to valid the tags when read.
+- *
+- *  - Pack ExtendedTags to PackedTags1 form
+- *  - Compute mini-ECC for PackedTags1
+- *  - Write data and packed tags to NAND.
+- *
+- * Note: Due to the use of the PackedTags1 meta-data which does not include
+- * a full sequence number (as found in the larger PackedTags2 form) it is
+- * necessary for Yaffs to re-write a chunk/page (just once) to mark it as
+- * discarded and dirty.  This is not ideal: newer NAND parts are supposed
+- * to be written just once.  When Yaffs performs this operation, this
+- * function is called with a NULL data pointer -- calling MTD write_oob
+- * without data is valid usage (2.6.17).
+- *
+- * Any underlying MTD error results in YAFFS_FAIL.
+- * Returns YAFFS_OK or YAFFS_FAIL.
+- */
+-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev,
+-	int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags)
+-{
+-	struct mtd_info * mtd = dev->genericDevice;
+-	int chunkBytes = dev->nDataBytesPerChunk;
+-	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
+-	struct mtd_oob_ops ops;
+-	yaffs_PackedTags1 pt1;
+-	int retval;
+-
+-	/* we assume that PackedTags1 and yaffs_Tags are compatible */
+-	compile_time_assertion(sizeof(yaffs_PackedTags1) == 12);
+-	compile_time_assertion(sizeof(yaffs_Tags) == 8);
+-
+-	yaffs_PackTags1(&pt1, etags);
+-	yaffs_CalcTagsECC((yaffs_Tags *)&pt1);
+-
+-	/* When deleting a chunk, the upper layer provides only skeletal
+-	 * etags, one with chunkDeleted set.  However, we need to update the
+-	 * tags, not erase them completely.  So we use the NAND write property
+-	 * that only zeroed-bits stick and set tag bytes to all-ones and
+-	 * zero just the (not) deleted bit.
+-	 */
+-#ifndef CONFIG_YAFFS_9BYTE_TAGS
+-	if (etags->chunkDeleted) {
+-		memset(&pt1, 0xff, 8);
+-		/* clear delete status bit to indicate deleted */
+-		pt1.deleted = 0;
+-	}
+-#else
+-	((__u8 *)&pt1)[8] = 0xff;
+-	if (etags->chunkDeleted) {
+-		memset(&pt1, 0xff, 8);
+-		/* zero pageStatus byte to indicate deleted */
+-		((__u8 *)&pt1)[8] = 0;
+-	}
+-#endif
+-
+-	memset(&ops, 0, sizeof(ops));
+-	ops.mode = MTD_OOB_AUTO;
+-	ops.len = (data) ? chunkBytes : 0;
+-	ops.ooblen = YTAG1_SIZE;
+-	ops.datbuf = (__u8 *)data;
+-	ops.oobbuf = (__u8 *)&pt1;
+-
+-	retval = mtd->write_oob(mtd, addr, &ops);
+-	if (retval) {
+-		yaffs_trace(YAFFS_TRACE_MTD,
+-			"write_oob failed, chunk %d, mtd error %d\n",
+-			chunkInNAND, retval);
+-	}
+-	return retval ? YAFFS_FAIL : YAFFS_OK;
+-}
+-
+-/* Return with empty ExtendedTags but add eccResult.
+- */
+-static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval)
+-{
+-	if (etags) {
+-		memset(etags, 0, sizeof(*etags));
+-		etags->eccResult = eccResult;
+-	}
+-	return retval;
+-}
+-
+-/* Read a chunk (page) from NAND.
+- *
+- * Caller expects ExtendedTags data to be usable even on error; that is,
+- * all members except eccResult and blockBad are zeroed.
+- *
+- *  - Check ECC results for data (if applicable)
+- *  - Check for blank/erased block (return empty ExtendedTags if blank)
+- *  - Check the PackedTags1 mini-ECC (correct if necessary/possible)
+- *  - Convert PackedTags1 to ExtendedTags
+- *  - Update eccResult and blockBad members to refect state.
+- *
+- * Returns YAFFS_OK or YAFFS_FAIL.
+- */
+-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev,
+-	int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags)
+-{
+-	struct mtd_info * mtd = dev->genericDevice;
+-	int chunkBytes = dev->nDataBytesPerChunk;
+-	loff_t addr = ((loff_t)chunkInNAND) * chunkBytes;
+-	int eccres = YAFFS_ECC_RESULT_NO_ERROR;
+-	struct mtd_oob_ops ops;
+-	yaffs_PackedTags1 pt1;
+-	int retval;
+-	int deleted;
+-
+-	memset(&ops, 0, sizeof(ops));
+-	ops.mode = MTD_OOB_AUTO;
+-	ops.len = (data) ? chunkBytes : 0;
+-	ops.ooblen = YTAG1_SIZE;
+-	ops.datbuf = data;
+-	ops.oobbuf = (__u8 *)&pt1;
+-
+-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20))
+-	/* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug;
+-	 * help it out with ops.len = ops.ooblen when ops.datbuf == NULL.
+-	 */
+-	ops.len = (ops.datbuf) ? ops.len : ops.ooblen;
+-#endif
+-	/* Read page and oob using MTD.
+-	 * Check status and determine ECC result.
+-	 */
+-	retval = mtd->read_oob(mtd, addr, &ops);
+-	if (retval) {
+-		yaffs_trace(YAFFS_TRACE_MTD,
+-			"read_oob failed, chunk %d, mtd error %d\n",
+-			chunkInNAND, retval);
+-	}
+-
+-	switch (retval) {
+-	case 0:
+-		/* no error */
+-		break;
+-
+-	case -EUCLEAN:
+-		/* MTD's ECC fixed the data */
+-		eccres = YAFFS_ECC_RESULT_FIXED;
+-		dev->eccFixed++;
+-		break;
+-
+-	case -EBADMSG:
+-		/* MTD's ECC could not fix the data */
+-		dev->eccUnfixed++;
+-		/* fall into... */
+-	default:
+-		rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0);
+-		etags->blockBad = (mtd->block_isbad)(mtd, addr);
+-		return YAFFS_FAIL;
+-	}
+-
+-	/* Check for a blank/erased chunk.
+-	 */
+-	if (yaffs_CheckFF((__u8 *)&pt1, 8)) {
+-		/* when blank, upper layers want eccResult to be <= NO_ERROR */
+-		return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK);
+-	}
+-
+-#ifndef CONFIG_YAFFS_9BYTE_TAGS
+-	/* Read deleted status (bit) then return it to it's non-deleted
+-	 * state before performing tags mini-ECC check. pt1.deleted is
+-	 * inverted.
+-	 */
+-	deleted = !pt1.deleted;
+-	pt1.deleted = 1;
+-#else
+-	(void) deleted; /* not used */
+-#endif
+-
+-	/* Check the packed tags mini-ECC and correct if necessary/possible.
+-	 */
+-	retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1);
+-	switch (retval) {
+-	case 0:
+-		/* no tags error, use MTD result */
+-		break;
+-	case 1:
+-		/* recovered tags-ECC error */
+-		dev->tagsEccFixed++;
+-		eccres = YAFFS_ECC_RESULT_FIXED;
+-		break;
+-	default:
+-		/* unrecovered tags-ECC error */
+-		dev->tagsEccUnfixed++;
+-		return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL);
+-	}
+-
+-	/* Unpack the tags to extended form and set ECC result.
+-	 * [set shouldBeFF just to keep yaffs_UnpackTags1 happy]
+-	 */
+-	pt1.shouldBeFF = 0xFFFFFFFF;
+-	yaffs_UnpackTags1(etags, &pt1);
+-	etags->eccResult = eccres;
+-
+-	/* Set deleted state.
+-	 */
+-#ifndef CONFIG_YAFFS_9BYTE_TAGS
+-	etags->chunkDeleted = deleted;
+-#else
+-	etags->chunkDeleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7);
+-#endif
+-	return YAFFS_OK;
+-}
+-
+-/* Mark a block bad.
+- *
+- * This is a persistant state.
+- * Use of this function should be rare.
+- *
+- * Returns YAFFS_OK or YAFFS_FAIL.
+- */
+-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
+-{
+-	struct mtd_info * mtd = dev->genericDevice;
+-	int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk;
+-	int retval;
+-
+-	yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo);
+-
+-	retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo);
+-	return (retval) ? YAFFS_FAIL : YAFFS_OK;
+-}
+-
+-/* Check any MTD prerequists.
+- *
+- * Returns YAFFS_OK or YAFFS_FAIL.
+- */
+-static int nandmtd1_TestPrerequists(struct mtd_info * mtd)
+-{
+-	/* 2.6.18 has mtd->ecclayout->oobavail */
+-	/* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */
+-	int oobavail = mtd->ecclayout->oobavail;
+-
+-	if (oobavail < YTAG1_SIZE) {
+-		yaffs_trace(YAFFS_TRACE_ERROR,
+-			"mtd device has only %d bytes for tags, need %d",
+-			oobavail, YTAG1_SIZE);
+-		return YAFFS_FAIL;
+-	}
+-	return YAFFS_OK;
+-}
+-
+-/* Query for the current state of a specific block.
+- *
+- * Examine the tags of the first chunk of the block and return the state:
+- *  - YAFFS_BLOCK_STATE_DEAD, the block is marked bad
+- *  - YAFFS_BLOCK_STATE_NEEDS_SCANNING, the block is in use
+- *  - YAFFS_BLOCK_STATE_EMPTY, the block is clean
+- *
+- * Always returns YAFFS_OK.
+- */
+-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-	yaffs_BlockState * pState, int *pSequenceNumber)
+-{
+-	struct mtd_info * mtd = dev->genericDevice;
+-	int chunkNo = blockNo * dev->nChunksPerBlock;
+-	yaffs_ExtendedTags etags;
+-	int state = YAFFS_BLOCK_STATE_DEAD;
+-	int seqnum = 0;
+-	int retval;
+-
+-	/* We don't yet have a good place to test for MTD config prerequists.
+-	 * Do it here as we are called during the initial scan.
+-	 */
+-	if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) {
+-		return YAFFS_FAIL;
+-	}
+-
+-	retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags);
+-	if (etags.blockBad) {
+-		yaffs_trace(YAFFS_TRACE_BAD_BLOCKS,
+-			"block %d is marked bad", blockNo);
+-		state = YAFFS_BLOCK_STATE_DEAD;
+-	}
+-	else if (etags.chunkUsed) {
+-		state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
+-		seqnum = etags.sequenceNumber;
+-	}
+-	else {
+-		state = YAFFS_BLOCK_STATE_EMPTY;
+-	}
+-
+-	*pState = state;
+-	*pSequenceNumber = seqnum;
+-
+-	/* query always succeeds */
+-	return YAFFS_OK;
+-}
+-
+-#endif /*KERNEL_VERSION*/
+-
+---Boundary-00=_5LbTGmt62YoutxM--
+-
+-
+-
+--- a/fs/yaffs2/yaffs_mtdif1.h
++++ b/fs/yaffs2/yaffs_mtdif1.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * This program is free software; you can redistribute it and/or modify
+@@ -14,15 +14,15 @@
+ #ifndef __YAFFS_MTDIF1_H__
+ #define __YAFFS_MTDIF1_H__
+ 
+-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
+-	const __u8 *data, const yaffs_ExtendedTags *tags);
++int nandmtd1_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk,
++	const __u8 *data, const yaffs_ext_tags *tags);
+ 
+-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
+-	__u8 *data, yaffs_ExtendedTags *tags);
++int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk,
++	__u8 *data, yaffs_ext_tags *tags);
+ 
+-int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
++int nandmtd1_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no);
+ 
+-int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-	yaffs_BlockState *state, __u32 *sequenceNumber);
++int nandmtd1_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no,
++	yaffs_block_state_t *state, __u32 *seq_number);
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_mtdif2.c
++++ b/fs/yaffs2/yaffs_mtdif2.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -13,11 +13,8 @@
+ 
+ /* mtd interface for YAFFS2 */
+ 
+-const char *yaffs_mtdif2_c_version =
+-	"$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $";
+-
+ #include "yportenv.h"
+-
++#include "yaffs_trace.h"
+ 
+ #include "yaffs_mtdif2.h"
+ 
+@@ -27,15 +24,17 @@ const char *yaffs_mtdif2_c_version =
+ 
+ #include "yaffs_packedtags2.h"
+ 
++#include "yaffs_linux.h"
++
+ /* NB For use with inband tags....
+  * We assume that the data buffer is of size totalBytersPerChunk so that we can also
+  * use it to load the tags.
+  */
+-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk,
+ 				      const __u8 *data,
+-				      const yaffs_ExtendedTags *tags)
++				      const yaffs_ext_tags *tags)
+ {
+-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
+ #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	struct mtd_oob_ops ops;
+ #else
+@@ -47,13 +46,16 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya
+ 
+ 	yaffs_PackedTags2 pt;
+ 
++	int packed_tags_size = dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt);
++	void * packed_tags_ptr = dev->param.no_tags_ecc ? (void *) &pt.t : (void *)&pt;
++
+ 	T(YAFFS_TRACE_MTD,
+ 	  (TSTR
+ 	   ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
+-	    TENDSTR), chunkInNAND, data, tags));
++	    TENDSTR), nand_chunk, data, tags));
+ 
+ 
+-	addr  = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
++	addr  = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk;
+ 
+ 	/* For yaffs2 writing there must be both data and tags.
+ 	 * If we're using inband tags, then the tags are stuffed into
+@@ -61,30 +63,30 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya
+ 	 */
+ 	if (!data || !tags)
+ 		BUG();
+-	else if (dev->inbandTags) {
++	else if (dev->param.inband_tags) {
+ 		yaffs_PackedTags2TagsPart *pt2tp;
+-		pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk);
++		pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->data_bytes_per_chunk);
+ 		yaffs_PackTags2TagsPart(pt2tp, tags);
+ 	} else
+-		yaffs_PackTags2(&pt, tags);
++		yaffs_PackTags2(&pt, tags, !dev->param.no_tags_ecc);
+ 
+ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+ 	ops.mode = MTD_OOB_AUTO;
+-	ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt);
+-	ops.len = dev->totalBytesPerChunk;
++	ops.ooblen = (dev->param.inband_tags) ? 0 : packed_tags_size;
++	ops.len = dev->param.total_bytes_per_chunk;
+ 	ops.ooboffs = 0;
+ 	ops.datbuf = (__u8 *)data;
+-	ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt;
++	ops.oobbuf = (dev->param.inband_tags) ? NULL : packed_tags_ptr;
+ 	retval = mtd->write_oob(mtd, addr, &ops);
+ 
+ #else
+-	if (!dev->inbandTags) {
++	if (!dev->param.inband_tags) {
+ 		retval =
+-		    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-				   &dummy, data, (__u8 *) &pt, NULL);
++		    mtd->write_ecc(mtd, addr, dev->data_bytes_per_chunk,
++				   &dummy, data, (__u8 *) packed_tags_ptr, NULL);
+ 	} else {
+ 		retval =
+-		    mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy,
++		    mtd->write(mtd, addr, dev->param.total_bytes_per_chunk, &dummy,
+ 			       data);
+ 	}
+ #endif
+@@ -95,10 +97,10 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya
+ 		return YAFFS_FAIL;
+ }
+ 
+-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
+-				       __u8 *data, yaffs_ExtendedTags *tags)
++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk,
++				       __u8 *data, yaffs_ext_tags *tags)
+ {
+-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
+ #if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+ 	struct mtd_oob_ops ops;
+ #endif
+@@ -106,20 +108,23 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y
+ 	int retval = 0;
+ 	int localData = 0;
+ 
+-	loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk;
++	loff_t addr = ((loff_t) nand_chunk) * dev->param.total_bytes_per_chunk;
+ 
+ 	yaffs_PackedTags2 pt;
+ 
++	int packed_tags_size = dev->param.no_tags_ecc ? sizeof(pt.t) : sizeof(pt);
++	void * packed_tags_ptr = dev->param.no_tags_ecc ? (void *) &pt.t: (void *)&pt;
++
+ 	T(YAFFS_TRACE_MTD,
+ 	  (TSTR
+ 	   ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
+-	    TENDSTR), chunkInNAND, data, tags));
++	    TENDSTR), nand_chunk, data, tags));
+ 
+-	if (dev->inbandTags) {
++	if (dev->param.inband_tags) {
+ 
+ 		if (!data) {
+ 			localData = 1;
+-			data = yaffs_GetTempBuffer(dev, __LINE__);
++			data = yaffs_get_temp_buffer(dev, __LINE__);
+ 		}
+ 
+ 
+@@ -127,30 +132,30 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y
+ 
+ 
+ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
+-	if (dev->inbandTags || (data && !tags))
+-		retval = mtd->read(mtd, addr, dev->totalBytesPerChunk,
++	if (dev->param.inband_tags || (data && !tags))
++		retval = mtd->read(mtd, addr, dev->param.total_bytes_per_chunk,
+ 				&dummy, data);
+ 	else if (tags) {
+ 		ops.mode = MTD_OOB_AUTO;
+-		ops.ooblen = sizeof(pt);
+-		ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt);
++		ops.ooblen = packed_tags_size;
++		ops.len = data ? dev->data_bytes_per_chunk : packed_tags_size;
+ 		ops.ooboffs = 0;
+ 		ops.datbuf = data;
+-		ops.oobbuf = dev->spareBuffer;
++		ops.oobbuf = yaffs_dev_to_lc(dev)->spareBuffer;
+ 		retval = mtd->read_oob(mtd, addr, &ops);
+ 	}
+ #else
+-	if (!dev->inbandTags && data && tags) {
++	if (!dev->param.inband_tags && data && tags) {
+ 
+-		retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
++		retval = mtd->read_ecc(mtd, addr, dev->data_bytes_per_chunk,
+ 					  &dummy, data, dev->spareBuffer,
+ 					  NULL);
+ 	} else {
+ 		if (data)
+ 			retval =
+-			    mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
++			    mtd->read(mtd, addr, dev->data_bytes_per_chunk, &dummy,
+ 				      data);
+-		if (!dev->inbandTags && tags)
++		if (!dev->param.inband_tags && tags)
+ 			retval =
+ 			    mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
+ 					  dev->spareBuffer);
+@@ -158,41 +163,47 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y
+ #endif
+ 
+ 
+-	if (dev->inbandTags) {
++	if (dev->param.inband_tags) {
+ 		if (tags) {
+ 			yaffs_PackedTags2TagsPart *pt2tp;
+-			pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
+-			yaffs_UnpackTags2TagsPart(tags, pt2tp);
++			pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->data_bytes_per_chunk];
++			yaffs_unpack_tags2tags_part(tags, pt2tp);
+ 		}
+ 	} else {
+ 		if (tags) {
+-			memcpy(&pt, dev->spareBuffer, sizeof(pt));
+-			yaffs_UnpackTags2(tags, &pt);
++			memcpy(packed_tags_ptr, yaffs_dev_to_lc(dev)->spareBuffer, packed_tags_size);
++			yaffs_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc);
+ 		}
+ 	}
+ 
+ 	if (localData)
+-		yaffs_ReleaseTempBuffer(dev, data, __LINE__);
++		yaffs_release_temp_buffer(dev, data, __LINE__);
+ 
+-	if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR)
+-		tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
++	if (tags && retval == -EBADMSG && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) {
++		tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED;
++		dev->n_ecc_unfixed++;
++	}
++	if(tags && retval == -EUCLEAN && tags->ecc_result == YAFFS_ECC_RESULT_NO_ERROR) {
++		tags->ecc_result = YAFFS_ECC_RESULT_FIXED;
++		dev->n_ecc_fixed++;
++	}
+ 	if (retval == 0)
+ 		return YAFFS_OK;
+ 	else
+ 		return YAFFS_FAIL;
+ }
+ 
+-int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo)
++int nandmtd2_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no)
+ {
+-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
+ 	int retval;
+ 	T(YAFFS_TRACE_MTD,
+-	  (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo));
++	  (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), block_no));
+ 
+ 	retval =
+ 	    mtd->block_markbad(mtd,
+-			       blockNo * dev->nChunksPerBlock *
+-			       dev->totalBytesPerChunk);
++			       block_no * dev->param.chunks_per_block *
++			       dev->param.total_bytes_per_chunk);
+ 
+ 	if (retval == 0)
+ 		return YAFFS_OK;
+@@ -201,41 +212,41 @@ int nandmtd2_MarkNANDBlockBad(struct yaf
+ 
+ }
+ 
+-int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-			    yaffs_BlockState *state, __u32 *sequenceNumber)
++int nandmtd2_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no,
++			    yaffs_block_state_t *state, __u32 *seq_number)
+ {
+-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
+ 	int retval;
+ 
+ 	T(YAFFS_TRACE_MTD,
+-	  (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo));
++	  (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), block_no));
+ 	retval =
+ 	    mtd->block_isbad(mtd,
+-			     blockNo * dev->nChunksPerBlock *
+-			     dev->totalBytesPerChunk);
++			     block_no * dev->param.chunks_per_block *
++			     dev->param.total_bytes_per_chunk);
+ 
+ 	if (retval) {
+ 		T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
+ 
+ 		*state = YAFFS_BLOCK_STATE_DEAD;
+-		*sequenceNumber = 0;
++		*seq_number = 0;
+ 	} else {
+-		yaffs_ExtendedTags t;
++		yaffs_ext_tags t;
+ 		nandmtd2_ReadChunkWithTagsFromNAND(dev,
+-						   blockNo *
+-						   dev->nChunksPerBlock, NULL,
++						   block_no *
++						   dev->param.chunks_per_block, NULL,
+ 						   &t);
+ 
+-		if (t.chunkUsed) {
+-			*sequenceNumber = t.sequenceNumber;
++		if (t.chunk_used) {
++			*seq_number = t.seq_number;
+ 			*state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
+ 		} else {
+-			*sequenceNumber = 0;
++			*seq_number = 0;
+ 			*state = YAFFS_BLOCK_STATE_EMPTY;
+ 		}
+ 	}
+ 	T(YAFFS_TRACE_MTD,
+-	  (TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber,
++	  (TSTR("block is bad seq %d state %d" TENDSTR), *seq_number,
+ 	   *state));
+ 
+ 	if (retval == 0)
+--- a/fs/yaffs2/yaffs_mtdif2.h
++++ b/fs/yaffs2/yaffs_mtdif2.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -17,13 +17,13 @@
+ #define __YAFFS_MTDIF2_H__
+ 
+ #include "yaffs_guts.h"
+-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND,
++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_dev_t *dev, int nand_chunk,
+ 				const __u8 *data,
+-				const yaffs_ExtendedTags *tags);
+-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
+-				__u8 *data, yaffs_ExtendedTags *tags);
+-int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
+-int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-			yaffs_BlockState *state, __u32 *sequenceNumber);
++				const yaffs_ext_tags *tags);
++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_dev_t *dev, int nand_chunk,
++				__u8 *data, yaffs_ext_tags *tags);
++int nandmtd2_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no);
++int nandmtd2_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no,
++			yaffs_block_state_t *state, __u32 *seq_number);
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_mtdif.c
++++ b/fs/yaffs2/yaffs_mtdif.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -11,9 +11,6 @@
+  * published by the Free Software Foundation.
+  */
+ 
+-const char *yaffs_mtdif_c_version =
+-	"$Id: yaffs_mtdif.c,v 1.22 2009-03-06 17:20:51 wookey Exp $";
+-
+ #include "yportenv.h"
+ 
+ 
+@@ -24,208 +21,26 @@ const char *yaffs_mtdif_c_version =
+ #include "linux/time.h"
+ #include "linux/mtd/nand.h"
+ 
+-#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 18))
+-static struct nand_oobinfo yaffs_oobinfo = {
+-	.useecc = 1,
+-	.eccbytes = 6,
+-	.eccpos = {8, 9, 10, 13, 14, 15}
+-};
+-
+-static struct nand_oobinfo yaffs_noeccinfo = {
+-	.useecc = 0,
+-};
+-#endif
+-
+-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+-static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob)
+-{
+-	oob[0] = spare->tagByte0;
+-	oob[1] = spare->tagByte1;
+-	oob[2] = spare->tagByte2;
+-	oob[3] = spare->tagByte3;
+-	oob[4] = spare->tagByte4;
+-	oob[5] = spare->tagByte5 & 0x3f;
+-	oob[5] |= spare->blockStatus == 'Y' ? 0 : 0x80;
+-	oob[5] |= spare->pageStatus == 0 ? 0 : 0x40;
+-	oob[6] = spare->tagByte6;
+-	oob[7] = spare->tagByte7;
+-}
+-
+-static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob)
+-{
+-	struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare;
+-	spare->tagByte0 = oob[0];
+-	spare->tagByte1 = oob[1];
+-	spare->tagByte2 = oob[2];
+-	spare->tagByte3 = oob[3];
+-	spare->tagByte4 = oob[4];
+-	spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f;
+-	spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y';
+-	spare->pageStatus = oob[5] & 0x40 ? 0xff : 0;
+-	spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff;
+-	spare->tagByte6 = oob[6];
+-	spare->tagByte7 = oob[7];
+-	spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff;
+-
+-	nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */
+-}
+-#endif
+-
+-int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
+-			     const __u8 *data, const yaffs_Spare *spare)
+-{
+-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+-	struct mtd_oob_ops ops;
+-#endif
+-	size_t dummy;
+-	int retval = 0;
+-
+-	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
+-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+-	__u8 spareAsBytes[8]; /* OOB */
+-
+-	if (data && !spare)
+-		retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk,
+-				&dummy, data);
+-	else if (spare) {
+-		if (dev->useNANDECC) {
+-			translate_spare2oob(spare, spareAsBytes);
+-			ops.mode = MTD_OOB_AUTO;
+-			ops.ooblen = 8; /* temp hack */
+-		} else {
+-			ops.mode = MTD_OOB_RAW;
+-			ops.ooblen = YAFFS_BYTES_PER_SPARE;
+-		}
+-		ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
+-		ops.datbuf = (u8 *)data;
+-		ops.ooboffs = 0;
+-		ops.oobbuf = spareAsBytes;
+-		retval = mtd->write_oob(mtd, addr, &ops);
+-	}
+-#else
+-	__u8 *spareAsBytes = (__u8 *) spare;
+-
+-	if (data && spare) {
+-		if (dev->useNANDECC)
+-			retval =
+-			    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-					   &dummy, data, spareAsBytes,
+-					   &yaffs_oobinfo);
+-		else
+-			retval =
+-			    mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-					   &dummy, data, spareAsBytes,
+-					   &yaffs_noeccinfo);
+-	} else {
+-		if (data)
+-			retval =
+-			    mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy,
+-				       data);
+-		if (spare)
+-			retval =
+-			    mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
+-					   &dummy, spareAsBytes);
+-	}
+-#endif
+-
+-	if (retval == 0)
+-		return YAFFS_OK;
+-	else
+-		return YAFFS_FAIL;
+-}
+-
+-int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data,
+-			      yaffs_Spare *spare)
+-{
+-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
+-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+-	struct mtd_oob_ops ops;
+-#endif
+-	size_t dummy;
+-	int retval = 0;
++#include "yaffs_linux.h"
+ 
+-	loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk;
+-#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
+-	__u8 spareAsBytes[8]; /* OOB */
+-
+-	if (data && !spare)
+-		retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk,
+-				&dummy, data);
+-	else if (spare) {
+-		if (dev->useNANDECC) {
+-			ops.mode = MTD_OOB_AUTO;
+-			ops.ooblen = 8; /* temp hack */
+-		} else {
+-			ops.mode = MTD_OOB_RAW;
+-			ops.ooblen = YAFFS_BYTES_PER_SPARE;
+-		}
+-		ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen;
+-		ops.datbuf = data;
+-		ops.ooboffs = 0;
+-		ops.oobbuf = spareAsBytes;
+-		retval = mtd->read_oob(mtd, addr, &ops);
+-		if (dev->useNANDECC)
+-			translate_oob2spare(spare, spareAsBytes);
+-	}
+-#else
+-	__u8 *spareAsBytes = (__u8 *) spare;
+-
+-	if (data && spare) {
+-		if (dev->useNANDECC) {
+-			/* Careful, this call adds 2 ints */
+-			/* to the end of the spare data.  Calling function */
+-			/* should allocate enough memory for spare, */
+-			/* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */
+-			retval =
+-			    mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-					  &dummy, data, spareAsBytes,
+-					  &yaffs_oobinfo);
+-		} else {
+-			retval =
+-			    mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
+-					  &dummy, data, spareAsBytes,
+-					  &yaffs_noeccinfo);
+-		}
+-	} else {
+-		if (data)
+-			retval =
+-			    mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
+-				      data);
+-		if (spare)
+-			retval =
+-			    mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE,
+-					  &dummy, spareAsBytes);
+-	}
+-#endif
+-
+-	if (retval == 0)
+-		return YAFFS_OK;
+-	else
+-		return YAFFS_FAIL;
+-}
+-
+-int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber)
++int nandmtd_EraseBlockInNAND(yaffs_dev_t *dev, int blockNumber)
+ {
+-	struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
++	struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
+ 	__u32 addr =
+-	    ((loff_t) blockNumber) * dev->nDataBytesPerChunk
+-		* dev->nChunksPerBlock;
++	    ((loff_t) blockNumber) * dev->param.total_bytes_per_chunk
++		* dev->param.chunks_per_block;
+ 	struct erase_info ei;
++	
+ 	int retval = 0;
+ 
+ 	ei.mtd = mtd;
+ 	ei.addr = addr;
+-	ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock;
++	ei.len = dev->param.total_bytes_per_chunk * dev->param.chunks_per_block;
+ 	ei.time = 1000;
+ 	ei.retries = 2;
+ 	ei.callback = NULL;
+ 	ei.priv = (u_long) dev;
+ 
+-	/* Todo finish off the ei if required */
+-
+-	sema_init(&dev->sem, 0);
+-
+ 	retval = mtd->erase(mtd, &ei);
+ 
+ 	if (retval == 0)
+@@ -234,7 +49,7 @@ int nandmtd_EraseBlockInNAND(yaffs_Devic
+ 		return YAFFS_FAIL;
+ }
+ 
+-int nandmtd_InitialiseNAND(yaffs_Device *dev)
++int nandmtd_InitialiseNAND(yaffs_dev_t *dev)
+ {
+ 	return YAFFS_OK;
+ }
+--- a/fs/yaffs2/yaffs_mtdif.h
++++ b/fs/yaffs2/yaffs_mtdif.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -22,11 +22,6 @@
+ extern struct nand_oobinfo yaffs_oobinfo;
+ extern struct nand_oobinfo yaffs_noeccinfo;
+ #endif
+-
+-int nandmtd_WriteChunkToNAND(yaffs_Device *dev, int chunkInNAND,
+-			const __u8 *data, const yaffs_Spare *spare);
+-int nandmtd_ReadChunkFromNAND(yaffs_Device *dev, int chunkInNAND, __u8 *data,
+-			yaffs_Spare *spare);
+-int nandmtd_EraseBlockInNAND(yaffs_Device *dev, int blockNumber);
+-int nandmtd_InitialiseNAND(yaffs_Device *dev);
++int nandmtd_EraseBlockInNAND(yaffs_dev_t *dev, int blockNumber);
++int nandmtd_InitialiseNAND(yaffs_dev_t *dev);
+ #endif
+--- /dev/null
++++ b/fs/yaffs2/yaffs_nameval.c
+@@ -0,0 +1,197 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++/*
++ * This simple implementation of a name-value store assumes a small number of values and fits
++ * into a small finite buffer.
++ *
++ * Each attribute is stored as a record:
++ *  sizeof(int) bytes   record size.
++ *  strnlen+1 bytes name null terminated.
++ *  nbytes    value.
++ *  ----------
++ *  total size  stored in record size 
++ *
++ * This code has not been tested with unicode yet.
++ */
++
++
++#include "yaffs_nameval.h"
++
++#include "yportenv.h"
++ 
++static int nval_find(const char *xb, int xb_size, const YCHAR *name,
++		int *exist_size)
++{
++	int pos=0;
++	int size;
++
++	memcpy(&size,xb,sizeof(int));
++	while(size > 0 && (size < xb_size) && (pos + size < xb_size)){
++		if(yaffs_strncmp((YCHAR *)(xb+pos+sizeof(int)),name,size) == 0){
++			if(exist_size)
++				*exist_size = size;
++			return pos;
++		}
++		pos += size;
++		if(pos < xb_size -sizeof(int))
++			memcpy(&size,xb + pos,sizeof(int));
++		else
++			size = 0;
++	}
++	if(exist_size)
++		*exist_size = 0;
++	return -1;
++}
++
++static int nval_used(const char *xb, int xb_size)
++{
++	int pos=0;
++	int size;
++
++	memcpy(&size,xb + pos,sizeof(int));
++	while(size > 0 && (size < xb_size) && (pos + size < xb_size)){
++		pos += size;
++		if(pos < xb_size -sizeof(int))
++			memcpy(&size,xb + pos,sizeof(int));
++		else
++			size = 0;
++	}
++	return pos;
++}
++
++int nval_del(char *xb, int xb_size, const YCHAR *name)
++{
++	int pos  = nval_find(xb, xb_size, name, NULL);
++	int size;
++	
++	if(pos >= 0 && pos < xb_size){
++		/* Find size, shift rest over this record, then zero out the rest of buffer */
++		memcpy(&size,xb+pos,sizeof(int));
++		memcpy(xb + pos, xb + pos + size, xb_size - (pos + size));
++		memset(xb + (xb_size - size),0,size);
++		return 0;
++	} else
++		return -ENODATA;
++}
++
++int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, int bsize, int flags)
++{
++	int pos;
++	int namelen = yaffs_strnlen(name,xb_size);
++	int reclen;
++	int size_exist = 0;
++	int space;
++	int start;
++
++	pos = nval_find(xb,xb_size,name, &size_exist);
++
++	if(flags & XATTR_CREATE && pos >= 0)
++		return -EEXIST;
++	if(flags & XATTR_REPLACE && pos < 0)
++		return -ENODATA;
++
++	start = nval_used(xb,xb_size);
++	space = xb_size - start + size_exist;
++
++	reclen = (sizeof(int) + namelen + 1 + bsize);
++
++	if(reclen > space)
++		return -ENOSPC;
++
++	if(pos >= 0){
++		nval_del(xb,xb_size,name);
++		start = nval_used(xb, xb_size);
++	}
++
++	pos = start;
++
++	memcpy(xb + pos,&reclen,sizeof(int));
++	pos +=sizeof(int);
++	yaffs_strncpy((YCHAR *)(xb + pos), name, reclen);
++	pos+= (namelen+1);
++	memcpy(xb + pos,buf,bsize);
++	return 0;
++}
++
++int nval_get(const char *xb, int xb_size, const YCHAR *name, char *buf, int bsize)
++{
++	int pos = nval_find(xb,xb_size,name,NULL);
++	int size;
++	
++	if(pos >= 0 && pos< xb_size){
++		
++		memcpy(&size,xb +pos,sizeof(int));
++		pos+=sizeof(int); /* advance past record length */
++		size -= sizeof(int);
++
++		/* Advance over name string */
++		while(xb[pos] && size > 0 && pos < xb_size){
++			pos++;
++			size--;
++		}
++		/*Advance over NUL */
++		pos++;
++		size--;
++
++		if(size <= bsize){
++			memcpy(buf,xb + pos,size);
++			return size;
++		}
++		
++	}
++	if(pos >= 0)
++		return -ERANGE;
++	else
++		return -ENODATA;
++}
++
++int nval_list(const char *xb, int xb_size, char *buf, int bsize)
++{
++	int pos = 0;
++	int size;
++	int name_len;
++	int ncopied = 0;
++	int filled = 0;
++
++	memcpy(&size,xb + pos,sizeof(int));
++	while(size > sizeof(int) && size <= xb_size && (pos + size) < xb_size && !filled){
++		pos+= sizeof(int);
++		size-=sizeof(int);
++		name_len = yaffs_strnlen((YCHAR *)(xb + pos), size);
++		if(ncopied + name_len + 1 < bsize){
++			memcpy(buf,xb+pos,name_len * sizeof(YCHAR));
++			buf+= name_len;
++			*buf = '\0';
++			buf++;
++			if(sizeof(YCHAR) > 1){
++				*buf = '\0';
++				buf++;
++			}
++			ncopied += (name_len+1);
++		} else
++			filled = 1;
++		pos+=size;
++		if(pos < xb_size -sizeof(int))
++			memcpy(&size,xb + pos,sizeof(int));
++		else
++			size = 0;
++	}
++	return ncopied;
++}
++
++
++int nval_hasvalues(const char *xb, int xb_size)
++{
++	return nval_used(xb, xb_size) > 0;
++}
+--- /dev/null
++++ b/fs/yaffs2/yaffs_nameval.h
+@@ -0,0 +1,25 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++#ifndef __NAMEVAL_H__
++#define __NAMEVAL_H__
++
++#include "yportenv.h"
++
++int nval_del(char *xb, int xb_size, const YCHAR *name);
++int nval_set(char *xb, int xb_size, const YCHAR *name, const char *buf, int bsize, int flags);
++int nval_get(const char *xb, int xb_size, const YCHAR *name, char *buf, int bsize);
++int nval_list(const char *xb, int xb_size, char *buf, int bsize);
++int nval_hasvalues(const char *xb, int xb_size);
++#endif
+--- a/fs/yaffs2/yaffs_nand.c
++++ b/fs/yaffs2/yaffs_nand.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -11,124 +11,129 @@
+  * published by the Free Software Foundation.
+  */
+ 
+-const char *yaffs_nand_c_version =
+-	"$Id: yaffs_nand.c,v 1.10 2009-03-06 17:20:54 wookey Exp $";
+-
+ #include "yaffs_nand.h"
+ #include "yaffs_tagscompat.h"
+ #include "yaffs_tagsvalidity.h"
+ 
+ #include "yaffs_getblockinfo.h"
+ 
+-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
++int yaffs_rd_chunk_tags_nand(yaffs_dev_t *dev, int nand_chunk,
+ 					   __u8 *buffer,
+-					   yaffs_ExtendedTags *tags)
++					   yaffs_ext_tags *tags)
+ {
+ 	int result;
+-	yaffs_ExtendedTags localTags;
++	yaffs_ext_tags localTags;
++
++	int realignedChunkInNAND = nand_chunk - dev->chunk_offset;
+ 
+-	int realignedChunkInNAND = chunkInNAND - dev->chunkOffset;
++	dev->n_page_reads++;
+ 
+ 	/* If there are no tags provided, use local tags to get prioritised gc working */
+ 	if (!tags)
+ 		tags = &localTags;
+ 
+-	if (dev->readChunkWithTagsFromNAND)
+-		result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer,
++	if (dev->param.read_chunk_tags_fn)
++		result = dev->param.read_chunk_tags_fn(dev, realignedChunkInNAND, buffer,
+ 						      tags);
+ 	else
+-		result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev,
++		result = yaffs_tags_compat_rd(dev,
+ 									realignedChunkInNAND,
+ 									buffer,
+ 									tags);
+ 	if (tags &&
+-	   tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR) {
++	   tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) {
+ 
+-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock);
+-		yaffs_HandleChunkError(dev, bi);
++		yaffs_block_info_t *bi;
++		bi = yaffs_get_block_info(dev, nand_chunk/dev->param.chunks_per_block);
++		yaffs_handle_chunk_error(dev, bi);
+ 	}
+ 
+ 	return result;
+ }
+ 
+-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev,
+-						   int chunkInNAND,
++int yaffs_wr_chunk_tags_nand(yaffs_dev_t *dev,
++						   int nand_chunk,
+ 						   const __u8 *buffer,
+-						   yaffs_ExtendedTags *tags)
++						   yaffs_ext_tags *tags)
+ {
+-	chunkInNAND -= dev->chunkOffset;
++
++	dev->n_page_writes++;
++
++	nand_chunk -= dev->chunk_offset;
+ 
+ 
+ 	if (tags) {
+-		tags->sequenceNumber = dev->sequenceNumber;
+-		tags->chunkUsed = 1;
+-		if (!yaffs_ValidateTags(tags)) {
++		tags->seq_number = dev->seq_number;
++		tags->chunk_used = 1;
++		if (!yaffs_validate_tags(tags)) {
+ 			T(YAFFS_TRACE_ERROR,
+ 			  (TSTR("Writing uninitialised tags" TENDSTR)));
+ 			YBUG();
+ 		}
+ 		T(YAFFS_TRACE_WRITE,
+-		  (TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND,
+-		   tags->objectId, tags->chunkId));
++		  (TSTR("Writing chunk %d tags %d %d" TENDSTR), nand_chunk,
++		   tags->obj_id, tags->chunk_id));
+ 	} else {
+ 		T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR)));
+ 		YBUG();
+ 	}
+ 
+-	if (dev->writeChunkWithTagsToNAND)
+-		return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer,
++	if (dev->param.write_chunk_tags_fn)
++		return dev->param.write_chunk_tags_fn(dev, nand_chunk, buffer,
+ 						     tags);
+ 	else
+-		return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev,
+-								       chunkInNAND,
++		return yaffs_tags_compat_wr(dev,
++								       nand_chunk,
+ 								       buffer,
+ 								       tags);
+ }
+ 
+-int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo)
++int yaffs_mark_bad(yaffs_dev_t *dev, int block_no)
+ {
+-	blockNo -= dev->blockOffset;
++	block_no -= dev->block_offset;
++
+ 
+-;
+-	if (dev->markNANDBlockBad)
+-		return dev->markNANDBlockBad(dev, blockNo);
++	if (dev->param.bad_block_fn)
++		return dev->param.bad_block_fn(dev, block_no);
+ 	else
+-		return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo);
++		return yaffs_tags_compat_mark_bad(dev, block_no);
+ }
+ 
+-int yaffs_QueryInitialBlockState(yaffs_Device *dev,
+-						 int blockNo,
+-						 yaffs_BlockState *state,
+-						 __u32 *sequenceNumber)
++int yaffs_query_init_block_state(yaffs_dev_t *dev,
++						 int block_no,
++						 yaffs_block_state_t *state,
++						 __u32 *seq_number)
+ {
+-	blockNo -= dev->blockOffset;
++	block_no -= dev->block_offset;
+ 
+-	if (dev->queryNANDBlock)
+-		return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber);
++	if (dev->param.query_block_fn)
++		return dev->param.query_block_fn(dev, block_no, state, seq_number);
+ 	else
+-		return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo,
++		return yaffs_tags_compat_query_block(dev, block_no,
+ 							     state,
+-							     sequenceNumber);
++							     seq_number);
+ }
+ 
+ 
+-int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
+-				  int blockInNAND)
++int yaffs_erase_block(struct yaffs_dev_s *dev,
++				  int flash_block)
+ {
+ 	int result;
+ 
+-	blockInNAND -= dev->blockOffset;
++	flash_block -= dev->block_offset;
+ 
++	dev->n_erasures++;
+ 
+-	dev->nBlockErasures++;
+-	result = dev->eraseBlockInNAND(dev, blockInNAND);
++	result = dev->param.erase_fn(dev, flash_block);
+ 
+ 	return result;
+ }
+ 
+-int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev)
++int yaffs_init_nand(struct yaffs_dev_s *dev)
+ {
+-	return dev->initialiseNAND(dev);
++	if(dev->param.initialise_flash_fn)
++		return dev->param.initialise_flash_fn(dev);
++	return YAFFS_OK;
+ }
+ 
+ 
+--- a/fs/yaffs2/yaffs_nandemul2k.h
++++ b/fs/yaffs2/yaffs_nandemul2k.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -20,18 +20,18 @@
+ 
+ #include "yaffs_guts.h"
+ 
+-int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
+-					int chunkInNAND, const __u8 *data,
+-					const yaffs_ExtendedTags *tags);
+-int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev,
+-					 int chunkInNAND, __u8 *data,
+-					 yaffs_ExtendedTags *tags);
+-int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo);
+-int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
+-			      yaffs_BlockState *state, __u32 *sequenceNumber);
+-int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
+-				int blockInNAND);
+-int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev);
++int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_dev_s *dev,
++					int nand_chunk, const __u8 *data,
++					const yaffs_ext_tags *tags);
++int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_dev_s *dev,
++					 int nand_chunk, __u8 *data,
++					 yaffs_ext_tags *tags);
++int nandemul2k_MarkNANDBlockBad(struct yaffs_dev_s *dev, int block_no);
++int nandemul2k_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no,
++			      yaffs_block_state_t *state, __u32 *seq_number);
++int nandemul2k_EraseBlockInNAND(struct yaffs_dev_s *dev,
++				int flash_block);
++int nandemul2k_InitialiseNAND(struct yaffs_dev_s *dev);
+ int nandemul2k_GetBytesPerChunk(void);
+ int nandemul2k_GetChunksPerBlock(void);
+ int nandemul2k_GetNumberOfBlocks(void);
+--- a/fs/yaffs2/yaffs_nand.h
++++ b/fs/yaffs2/yaffs_nand.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -19,26 +19,26 @@
+ 
+ 
+ 
+-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
++int yaffs_rd_chunk_tags_nand(yaffs_dev_t *dev, int nand_chunk,
+ 					__u8 *buffer,
+-					yaffs_ExtendedTags *tags);
++					yaffs_ext_tags *tags);
+ 
+-int yaffs_WriteChunkWithTagsToNAND(yaffs_Device *dev,
+-						int chunkInNAND,
++int yaffs_wr_chunk_tags_nand(yaffs_dev_t *dev,
++						int nand_chunk,
+ 						const __u8 *buffer,
+-						yaffs_ExtendedTags *tags);
++						yaffs_ext_tags *tags);
+ 
+-int yaffs_MarkBlockBad(yaffs_Device *dev, int blockNo);
++int yaffs_mark_bad(yaffs_dev_t *dev, int block_no);
+ 
+-int yaffs_QueryInitialBlockState(yaffs_Device *dev,
+-						int blockNo,
+-						yaffs_BlockState *state,
+-						unsigned *sequenceNumber);
++int yaffs_query_init_block_state(yaffs_dev_t *dev,
++						int block_no,
++						yaffs_block_state_t *state,
++						unsigned *seq_number);
+ 
+-int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
+-				  int blockInNAND);
++int yaffs_erase_block(struct yaffs_dev_s *dev,
++				  int flash_block);
+ 
+-int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev);
++int yaffs_init_nand(struct yaffs_dev_s *dev);
+ 
+ #endif
+ 
+--- a/fs/yaffs2/yaffs_packedtags1.c
++++ b/fs/yaffs2/yaffs_packedtags1.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -14,37 +14,37 @@
+ #include "yaffs_packedtags1.h"
+ #include "yportenv.h"
+ 
+-void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t)
++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ext_tags *t)
+ {
+-	pt->chunkId = t->chunkId;
+-	pt->serialNumber = t->serialNumber;
+-	pt->byteCount = t->byteCount;
+-	pt->objectId = t->objectId;
++	pt->chunk_id = t->chunk_id;
++	pt->serial_number = t->serial_number;
++	pt->n_bytes = t->n_bytes;
++	pt->obj_id = t->obj_id;
+ 	pt->ecc = 0;
+-	pt->deleted = (t->chunkDeleted) ? 0 : 1;
++	pt->deleted = (t->is_deleted) ? 0 : 1;
+ 	pt->unusedStuff = 0;
+ 	pt->shouldBeFF = 0xFFFFFFFF;
+ 
+ }
+ 
+-void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt)
++void yaffs_unpack_tags1(yaffs_ext_tags *t, const yaffs_PackedTags1 *pt)
+ {
+ 	static const __u8 allFF[] =
+ 	    { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff };
+ 
+ 	if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) {
+-		t->blockBad = 0;
++		t->block_bad = 0;
+ 		if (pt->shouldBeFF != 0xFFFFFFFF)
+-			t->blockBad = 1;
+-		t->chunkUsed = 1;
+-		t->objectId = pt->objectId;
+-		t->chunkId = pt->chunkId;
+-		t->byteCount = pt->byteCount;
+-		t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+-		t->chunkDeleted = (pt->deleted) ? 0 : 1;
+-		t->serialNumber = pt->serialNumber;
++			t->block_bad = 1;
++		t->chunk_used = 1;
++		t->obj_id = pt->obj_id;
++		t->chunk_id = pt->chunk_id;
++		t->n_bytes = pt->n_bytes;
++		t->ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
++		t->is_deleted = (pt->deleted) ? 0 : 1;
++		t->serial_number = pt->serial_number;
+ 	} else {
+-		memset(t, 0, sizeof(yaffs_ExtendedTags));
++		memset(t, 0, sizeof(yaffs_ext_tags));
+ 	}
+ }
+--- a/fs/yaffs2/yaffs_packedtags1.h
++++ b/fs/yaffs2/yaffs_packedtags1.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -21,10 +21,10 @@
+ #include "yaffs_guts.h"
+ 
+ typedef struct {
+-	unsigned chunkId:20;
+-	unsigned serialNumber:2;
+-	unsigned byteCount:10;
+-	unsigned objectId:18;
++	unsigned chunk_id:20;
++	unsigned serial_number:2;
++	unsigned n_bytes:10;
++	unsigned obj_id:18;
+ 	unsigned ecc:12;
+ 	unsigned deleted:1;
+ 	unsigned unusedStuff:1;
+@@ -32,6 +32,6 @@ typedef struct {
+ 
+ } yaffs_PackedTags1;
+ 
+-void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ExtendedTags *t);
+-void yaffs_UnpackTags1(yaffs_ExtendedTags *t, const yaffs_PackedTags1 *pt);
++void yaffs_PackTags1(yaffs_PackedTags1 *pt, const yaffs_ext_tags *t);
++void yaffs_unpack_tags1(yaffs_ext_tags *t, const yaffs_PackedTags1 *pt);
+ #endif
+--- a/fs/yaffs2/yaffs_packedtags2.c
++++ b/fs/yaffs2/yaffs_packedtags2.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -13,6 +13,7 @@
+ 
+ #include "yaffs_packedtags2.h"
+ #include "yportenv.h"
++#include "yaffs_trace.h"
+ #include "yaffs_tagsvalidity.h"
+ 
+ /* This code packs a set of extended tags into a binary structure for
+@@ -24,7 +25,7 @@
+  * This is defined by having the EXTRA_HEADER_INFO_FLAG set.
+  */
+ 
+-/* Extra flags applied to chunkId */
++/* Extra flags applied to chunk_id */
+ 
+ #define EXTRA_HEADER_INFO_FLAG	0x80000000
+ #define EXTRA_SHRINK_FLAG	0x40000000
+@@ -42,53 +43,53 @@ static void yaffs_DumpPackedTags2TagsPar
+ {
+ 	T(YAFFS_TRACE_MTD,
+ 	  (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR),
+-	   ptt->objectId, ptt->chunkId, ptt->byteCount,
+-	   ptt->sequenceNumber));
++	   ptt->obj_id, ptt->chunk_id, ptt->n_bytes,
++	   ptt->seq_number));
+ }
+ static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt)
+ {
+ 	yaffs_DumpPackedTags2TagsPart(&pt->t);
+ }
+ 
+-static void yaffs_DumpTags2(const yaffs_ExtendedTags *t)
++static void yaffs_DumpTags2(const yaffs_ext_tags *t)
+ {
+ 	T(YAFFS_TRACE_MTD,
+ 	  (TSTR
+ 	   ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d"
+-	    TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId,
+-	   t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber,
+-	   t->sequenceNumber));
++	    TENDSTR), t->ecc_result, t->block_bad, t->chunk_used, t->obj_id,
++	   t->chunk_id, t->n_bytes, t->is_deleted, t->serial_number,
++	   t->seq_number));
+ 
+ }
+ 
+ void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt,
+-		const yaffs_ExtendedTags *t)
++		const yaffs_ext_tags *t)
+ {
+-	ptt->chunkId = t->chunkId;
+-	ptt->sequenceNumber = t->sequenceNumber;
+-	ptt->byteCount = t->byteCount;
+-	ptt->objectId = t->objectId;
++	ptt->chunk_id = t->chunk_id;
++	ptt->seq_number = t->seq_number;
++	ptt->n_bytes = t->n_bytes;
++	ptt->obj_id = t->obj_id;
+ 
+-	if (t->chunkId == 0 && t->extraHeaderInfoAvailable) {
++	if (t->chunk_id == 0 && t->extra_available) {
+ 		/* Store the extra header info instead */
+-		/* We save the parent object in the chunkId */
+-		ptt->chunkId = EXTRA_HEADER_INFO_FLAG
+-			| t->extraParentObjectId;
+-		if (t->extraIsShrinkHeader)
+-			ptt->chunkId |= EXTRA_SHRINK_FLAG;
+-		if (t->extraShadows)
+-			ptt->chunkId |= EXTRA_SHADOWS_FLAG;
+-
+-		ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
+-		ptt->objectId |=
+-		    (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT);
+-
+-		if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK)
+-			ptt->byteCount = t->extraEquivalentObjectId;
+-		else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE)
+-			ptt->byteCount = t->extraFileLength;
++		/* We save the parent object in the chunk_id */
++		ptt->chunk_id = EXTRA_HEADER_INFO_FLAG
++			| t->extra_parent_id;
++		if (t->extra_is_shrink)
++			ptt->chunk_id |= EXTRA_SHRINK_FLAG;
++		if (t->extra_shadows)
++			ptt->chunk_id |= EXTRA_SHADOWS_FLAG;
++
++		ptt->obj_id &= ~EXTRA_OBJECT_TYPE_MASK;
++		ptt->obj_id |=
++		    (t->extra_obj_type << EXTRA_OBJECT_TYPE_SHIFT);
++
++		if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK)
++			ptt->n_bytes = t->extra_equiv_id;
++		else if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE)
++			ptt->n_bytes = t->extra_length;
+ 		else
+-			ptt->byteCount = 0;
++			ptt->n_bytes = 0;
+ 	}
+ 
+ 	yaffs_DumpPackedTags2TagsPart(ptt);
+@@ -96,59 +97,56 @@ void yaffs_PackTags2TagsPart(yaffs_Packe
+ }
+ 
+ 
+-void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t)
++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC)
+ {
+ 	yaffs_PackTags2TagsPart(&pt->t, t);
+ 
+-#ifndef YAFFS_IGNORE_TAGS_ECC
+-	{
+-		yaffs_ECCCalculateOther((unsigned char *)&pt->t,
++	if(tagsECC)
++		yaffs_ecc_calc_other((unsigned char *)&pt->t,
+ 					sizeof(yaffs_PackedTags2TagsPart),
+ 					&pt->ecc);
+-	}
+-#endif
+ }
+ 
+ 
+-void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t,
++void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t,
+ 		yaffs_PackedTags2TagsPart *ptt)
+ {
+ 
+-	memset(t, 0, sizeof(yaffs_ExtendedTags));
++	memset(t, 0, sizeof(yaffs_ext_tags));
+ 
+-	yaffs_InitialiseTags(t);
++	yaffs_init_tags(t);
+ 
+-	if (ptt->sequenceNumber != 0xFFFFFFFF) {
+-		t->blockBad = 0;
+-		t->chunkUsed = 1;
+-		t->objectId = ptt->objectId;
+-		t->chunkId = ptt->chunkId;
+-		t->byteCount = ptt->byteCount;
+-		t->chunkDeleted = 0;
+-		t->serialNumber = 0;
+-		t->sequenceNumber = ptt->sequenceNumber;
++	if (ptt->seq_number != 0xFFFFFFFF) {
++		t->block_bad = 0;
++		t->chunk_used = 1;
++		t->obj_id = ptt->obj_id;
++		t->chunk_id = ptt->chunk_id;
++		t->n_bytes = ptt->n_bytes;
++		t->is_deleted = 0;
++		t->serial_number = 0;
++		t->seq_number = ptt->seq_number;
+ 
+ 		/* Do extra header info stuff */
+ 
+-		if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) {
+-			t->chunkId = 0;
+-			t->byteCount = 0;
+-
+-			t->extraHeaderInfoAvailable = 1;
+-			t->extraParentObjectId =
+-			    ptt->chunkId & (~(ALL_EXTRA_FLAGS));
+-			t->extraIsShrinkHeader =
+-			    (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0;
+-			t->extraShadows =
+-			    (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0;
+-			t->extraObjectType =
+-			    ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT;
+-			t->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
++		if (ptt->chunk_id & EXTRA_HEADER_INFO_FLAG) {
++			t->chunk_id = 0;
++			t->n_bytes = 0;
++
++			t->extra_available = 1;
++			t->extra_parent_id =
++			    ptt->chunk_id & (~(ALL_EXTRA_FLAGS));
++			t->extra_is_shrink =
++			    (ptt->chunk_id & EXTRA_SHRINK_FLAG) ? 1 : 0;
++			t->extra_shadows =
++			    (ptt->chunk_id & EXTRA_SHADOWS_FLAG) ? 1 : 0;
++			t->extra_obj_type =
++			    ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT;
++			t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK;
+ 
+-			if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK)
+-				t->extraEquivalentObjectId = ptt->byteCount;
++			if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK)
++				t->extra_equiv_id = ptt->n_bytes;
+ 			else
+-				t->extraFileLength = ptt->byteCount;
++				t->extra_length = ptt->n_bytes;
+ 		}
+ 	}
+ 
+@@ -158,49 +156,43 @@ void yaffs_UnpackTags2TagsPart(yaffs_Ext
+ }
+ 
+ 
+-void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt)
++void yaffs_unpack_tags2(yaffs_ext_tags *t, yaffs_PackedTags2 *pt, int tagsECC)
+ {
+ 
+-	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR;
++	yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
+ 
+-	if (pt->t.sequenceNumber != 0xFFFFFFFF) {
+-		/* Page is in use */
+-#ifndef YAFFS_IGNORE_TAGS_ECC
+-		{
+-			yaffs_ECCOther ecc;
+-			int result;
+-			yaffs_ECCCalculateOther((unsigned char *)&pt->t,
+-						sizeof
+-						(yaffs_PackedTags2TagsPart),
+-						&ecc);
+-			result =
+-			    yaffs_ECCCorrectOther((unsigned char *)&pt->t,
+-						  sizeof
+-						  (yaffs_PackedTags2TagsPart),
+-						  &pt->ecc, &ecc);
+-			switch (result) {
++	if (pt->t.seq_number != 0xFFFFFFFF &&
++	    tagsECC){
++		/* Chunk is in use and we need to do ECC */
++		
++		yaffs_ECCOther ecc;
++		int result;
++		yaffs_ecc_calc_other((unsigned char *)&pt->t,
++					sizeof(yaffs_PackedTags2TagsPart),
++					&ecc);
++		result = yaffs_ecc_correct_other((unsigned char *)&pt->t,
++						sizeof(yaffs_PackedTags2TagsPart),
++						&pt->ecc, &ecc);
++		switch (result) {
+ 			case 0:
+-				eccResult = YAFFS_ECC_RESULT_NO_ERROR;
++				ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
+ 				break;
+ 			case 1:
+-				eccResult = YAFFS_ECC_RESULT_FIXED;
++				ecc_result = YAFFS_ECC_RESULT_FIXED;
+ 				break;
+ 			case -1:
+-				eccResult = YAFFS_ECC_RESULT_UNFIXED;
++				ecc_result = YAFFS_ECC_RESULT_UNFIXED;
+ 				break;
+ 			default:
+-				eccResult = YAFFS_ECC_RESULT_UNKNOWN;
+-			}
++				ecc_result = YAFFS_ECC_RESULT_UNKNOWN;
+ 		}
+-#endif
+ 	}
+ 
+-	yaffs_UnpackTags2TagsPart(t, &pt->t);
++	yaffs_unpack_tags2tags_part(t, &pt->t);
+ 
+-	t->eccResult = eccResult;
++	t->ecc_result = ecc_result;
+ 
+ 	yaffs_DumpPackedTags2(pt);
+ 	yaffs_DumpTags2(t);
+-
+ }
+ 
+--- a/fs/yaffs2/yaffs_packedtags2.h
++++ b/fs/yaffs2/yaffs_packedtags2.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -22,10 +22,10 @@
+ #include "yaffs_ecc.h"
+ 
+ typedef struct {
+-	unsigned sequenceNumber;
+-	unsigned objectId;
+-	unsigned chunkId;
+-	unsigned byteCount;
++	unsigned seq_number;
++	unsigned obj_id;
++	unsigned chunk_id;
++	unsigned n_bytes;
+ } yaffs_PackedTags2TagsPart;
+ 
+ typedef struct {
+@@ -34,10 +34,10 @@ typedef struct {
+ } yaffs_PackedTags2;
+ 
+ /* Full packed tags with ECC, used for oob tags */
+-void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t);
+-void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt);
++void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ext_tags *t, int tagsECC);
++void yaffs_unpack_tags2(yaffs_ext_tags *t, yaffs_PackedTags2 *pt, int tagsECC);
+ 
+ /* Only the tags part (no ECC for use with inband tags */
+-void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ExtendedTags *t);
+-void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, yaffs_PackedTags2TagsPart *pt);
++void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *pt, const yaffs_ext_tags *t);
++void yaffs_unpack_tags2tags_part(yaffs_ext_tags *t, yaffs_PackedTags2TagsPart *pt);
+ #endif
+--- a/fs/yaffs2/yaffs_qsort.h
++++ b/fs/yaffs2/yaffs_qsort.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -17,7 +17,18 @@
+ #ifndef __YAFFS_QSORT_H__
+ #define __YAFFS_QSORT_H__
+ 
++#ifdef __KERNEL__
++#include <linux/sort.h>
++
++extern void yaffs_qsort(void *const base, size_t total_elems, size_t size,
++			int (*cmp)(const void *, const void *)){
++	sort(base, total_elems, size, cmp, NULL);
++}
++
++#else
++
+ extern void yaffs_qsort(void *const base, size_t total_elems, size_t size,
+ 			int (*cmp)(const void *, const void *));
+ 
+ #endif
++#endif
+--- a/fs/yaffs2/yaffs_tagscompat.c
++++ b/fs/yaffs2/yaffs_tagscompat.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -15,19 +15,20 @@
+ #include "yaffs_tagscompat.h"
+ #include "yaffs_ecc.h"
+ #include "yaffs_getblockinfo.h"
++#include "yaffs_trace.h"
+ 
+-static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND);
++static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk);
+ #ifdef NOTYET
+-static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND);
+-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
++static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk);
++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk,
+ 				     const __u8 *data,
+-				     const yaffs_Spare *spare);
+-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+-				    const yaffs_Spare *spare);
+-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND);
++				     const yaffs_spare *spare);
++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk,
++				    const yaffs_spare *spare);
++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk);
+ #endif
+ 
+-static const char yaffs_countBitsTable[256] = {
++static const char yaffs_count_bits_table[256] = {
+ 	0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
+ 	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
+ 	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
+@@ -46,26 +47,26 @@ static const char yaffs_countBitsTable[2
+ 	4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8
+ };
+ 
+-int yaffs_CountBits(__u8 x)
++int yaffs_count_bits(__u8 x)
+ {
+ 	int retVal;
+-	retVal = yaffs_countBitsTable[x];
++	retVal = yaffs_count_bits_table[x];
+ 	return retVal;
+ }
+ 
+ /********** Tags ECC calculations  *********/
+ 
+-void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare)
++void yaffs_calc_ecc(const __u8 *data, yaffs_spare *spare)
+ {
+-	yaffs_ECCCalculate(data, spare->ecc1);
+-	yaffs_ECCCalculate(&data[256], spare->ecc2);
++	yaffs_ecc_cacl(data, spare->ecc1);
++	yaffs_ecc_cacl(&data[256], spare->ecc2);
+ }
+ 
+-void yaffs_CalcTagsECC(yaffs_Tags *tags)
++void yaffs_calc_tags_ecc(yaffs_tags_t *tags)
+ {
+ 	/* Calculate an ecc */
+ 
+-	unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
++	unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes;
+ 	unsigned i, j;
+ 	unsigned ecc = 0;
+ 	unsigned bit = 0;
+@@ -84,24 +85,24 @@ void yaffs_CalcTagsECC(yaffs_Tags *tags)
+ 
+ }
+ 
+-int yaffs_CheckECCOnTags(yaffs_Tags *tags)
++int yaffs_check_tags_ecc(yaffs_tags_t *tags)
+ {
+ 	unsigned ecc = tags->ecc;
+ 
+-	yaffs_CalcTagsECC(tags);
++	yaffs_calc_tags_ecc(tags);
+ 
+ 	ecc ^= tags->ecc;
+ 
+ 	if (ecc && ecc <= 64) {
+ 		/* TODO: Handle the failure better. Retire? */
+-		unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
++		unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes;
+ 
+ 		ecc--;
+ 
+ 		b[ecc / 8] ^= (1 << (ecc & 7));
+ 
+ 		/* Now recvalc the ecc */
+-		yaffs_CalcTagsECC(tags);
++		yaffs_calc_tags_ecc(tags);
+ 
+ 		return 1;	/* recovered error */
+ 	} else if (ecc) {
+@@ -115,76 +116,73 @@ int yaffs_CheckECCOnTags(yaffs_Tags *tag
+ 
+ /********** Tags **********/
+ 
+-static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr,
+-				yaffs_Tags *tagsPtr)
++static void yaffs_load_tags_to_spare(yaffs_spare *sparePtr,
++				yaffs_tags_t *tagsPtr)
+ {
+-	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
++	yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr;
+ 
+-	yaffs_CalcTagsECC(tagsPtr);
++	yaffs_calc_tags_ecc(tagsPtr);
+ 
+-	sparePtr->tagByte0 = tu->asBytes[0];
+-	sparePtr->tagByte1 = tu->asBytes[1];
+-	sparePtr->tagByte2 = tu->asBytes[2];
+-	sparePtr->tagByte3 = tu->asBytes[3];
+-	sparePtr->tagByte4 = tu->asBytes[4];
+-	sparePtr->tagByte5 = tu->asBytes[5];
+-	sparePtr->tagByte6 = tu->asBytes[6];
+-	sparePtr->tagByte7 = tu->asBytes[7];
++	sparePtr->tb0 = tu->as_bytes[0];
++	sparePtr->tb1 = tu->as_bytes[1];
++	sparePtr->tb2 = tu->as_bytes[2];
++	sparePtr->tb3 = tu->as_bytes[3];
++	sparePtr->tb4 = tu->as_bytes[4];
++	sparePtr->tb5 = tu->as_bytes[5];
++	sparePtr->tb6 = tu->as_bytes[6];
++	sparePtr->tb7 = tu->as_bytes[7];
+ }
+ 
+-static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr,
+-				yaffs_Tags *tagsPtr)
++static void yaffs_get_tags_from_spare(yaffs_dev_t *dev, yaffs_spare *sparePtr,
++				yaffs_tags_t *tagsPtr)
+ {
+-	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
++	yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr;
+ 	int result;
+ 
+-	tu->asBytes[0] = sparePtr->tagByte0;
+-	tu->asBytes[1] = sparePtr->tagByte1;
+-	tu->asBytes[2] = sparePtr->tagByte2;
+-	tu->asBytes[3] = sparePtr->tagByte3;
+-	tu->asBytes[4] = sparePtr->tagByte4;
+-	tu->asBytes[5] = sparePtr->tagByte5;
+-	tu->asBytes[6] = sparePtr->tagByte6;
+-	tu->asBytes[7] = sparePtr->tagByte7;
++	tu->as_bytes[0] = sparePtr->tb0;
++	tu->as_bytes[1] = sparePtr->tb1;
++	tu->as_bytes[2] = sparePtr->tb2;
++	tu->as_bytes[3] = sparePtr->tb3;
++	tu->as_bytes[4] = sparePtr->tb4;
++	tu->as_bytes[5] = sparePtr->tb5;
++	tu->as_bytes[6] = sparePtr->tb6;
++	tu->as_bytes[7] = sparePtr->tb7;
+ 
+-	result = yaffs_CheckECCOnTags(tagsPtr);
++	result = yaffs_check_tags_ecc(tagsPtr);
+ 	if (result > 0)
+-		dev->tagsEccFixed++;
++		dev->n_tags_ecc_fixed++;
+ 	else if (result < 0)
+-		dev->tagsEccUnfixed++;
++		dev->n_tags_ecc_unfixed++;
+ }
+ 
+-static void yaffs_SpareInitialise(yaffs_Spare *spare)
++static void yaffs_spare_init(yaffs_spare *spare)
+ {
+-	memset(spare, 0xFF, sizeof(yaffs_Spare));
++	memset(spare, 0xFF, sizeof(yaffs_spare));
+ }
+ 
+-static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev,
+-				int chunkInNAND, const __u8 *data,
+-				yaffs_Spare *spare)
++static int yaffs_wr_nand(struct yaffs_dev_s *dev,
++				int nand_chunk, const __u8 *data,
++				yaffs_spare *spare)
+ {
+-	if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) {
++	if (nand_chunk < dev->param.start_block * dev->param.chunks_per_block) {
+ 		T(YAFFS_TRACE_ERROR,
+ 		  (TSTR("**>> yaffs chunk %d is not valid" TENDSTR),
+-		   chunkInNAND));
++		   nand_chunk));
+ 		return YAFFS_FAIL;
+ 	}
+ 
+-	dev->nPageWrites++;
+-	return dev->writeChunkToNAND(dev, chunkInNAND, data, spare);
++	return dev->param.write_chunk_fn(dev, nand_chunk, data, spare);
+ }
+ 
+-static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
+-				   int chunkInNAND,
++static int yaffs_rd_chunk_nand(struct yaffs_dev_s *dev,
++				   int nand_chunk,
+ 				   __u8 *data,
+-				   yaffs_Spare *spare,
+-				   yaffs_ECCResult *eccResult,
++				   yaffs_spare *spare,
++				   yaffs_ecc_result *ecc_result,
+ 				   int doErrorCorrection)
+ {
+ 	int retVal;
+-	yaffs_Spare localSpare;
+-
+-	dev->nPageReads++;
++	yaffs_spare localSpare;
+ 
+ 	if (!spare && data) {
+ 		/* If we don't have a real spare, then we use a local one. */
+@@ -192,107 +190,107 @@ static int yaffs_ReadChunkFromNAND(struc
+ 		spare = &localSpare;
+ 	}
+ 
+-	if (!dev->useNANDECC) {
+-		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare);
++	if (!dev->param.use_nand_ecc) {
++		retVal = dev->param.read_chunk_fn(dev, nand_chunk, data, spare);
+ 		if (data && doErrorCorrection) {
+ 			/* Do ECC correction */
+ 			/* Todo handle any errors */
+-			int eccResult1, eccResult2;
++			int ecc_result1, ecc_result2;
+ 			__u8 calcEcc[3];
+ 
+-			yaffs_ECCCalculate(data, calcEcc);
+-			eccResult1 =
+-			    yaffs_ECCCorrect(data, spare->ecc1, calcEcc);
+-			yaffs_ECCCalculate(&data[256], calcEcc);
+-			eccResult2 =
+-			    yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc);
++			yaffs_ecc_cacl(data, calcEcc);
++			ecc_result1 =
++			    yaffs_ecc_correct(data, spare->ecc1, calcEcc);
++			yaffs_ecc_cacl(&data[256], calcEcc);
++			ecc_result2 =
++			    yaffs_ecc_correct(&data[256], spare->ecc2, calcEcc);
+ 
+-			if (eccResult1 > 0) {
++			if (ecc_result1 > 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>yaffs ecc error fix performed on chunk %d:0"
+-				    TENDSTR), chunkInNAND));
+-				dev->eccFixed++;
+-			} else if (eccResult1 < 0) {
++				    TENDSTR), nand_chunk));
++				dev->n_ecc_fixed++;
++			} else if (ecc_result1 < 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>yaffs ecc error unfixed on chunk %d:0"
+-				    TENDSTR), chunkInNAND));
+-				dev->eccUnfixed++;
++				    TENDSTR), nand_chunk));
++				dev->n_ecc_unfixed++;
+ 			}
+ 
+-			if (eccResult2 > 0) {
++			if (ecc_result2 > 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>yaffs ecc error fix performed on chunk %d:1"
+-				    TENDSTR), chunkInNAND));
+-				dev->eccFixed++;
+-			} else if (eccResult2 < 0) {
++				    TENDSTR), nand_chunk));
++				dev->n_ecc_fixed++;
++			} else if (ecc_result2 < 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>yaffs ecc error unfixed on chunk %d:1"
+-				    TENDSTR), chunkInNAND));
+-				dev->eccUnfixed++;
++				    TENDSTR), nand_chunk));
++				dev->n_ecc_unfixed++;
+ 			}
+ 
+-			if (eccResult1 || eccResult2) {
++			if (ecc_result1 || ecc_result2) {
+ 				/* We had a data problem on this page */
+-				yaffs_HandleReadDataError(dev, chunkInNAND);
++				yaffs_handle_rd_data_error(dev, nand_chunk);
+ 			}
+ 
+-			if (eccResult1 < 0 || eccResult2 < 0)
+-				*eccResult = YAFFS_ECC_RESULT_UNFIXED;
+-			else if (eccResult1 > 0 || eccResult2 > 0)
+-				*eccResult = YAFFS_ECC_RESULT_FIXED;
++			if (ecc_result1 < 0 || ecc_result2 < 0)
++				*ecc_result = YAFFS_ECC_RESULT_UNFIXED;
++			else if (ecc_result1 > 0 || ecc_result2 > 0)
++				*ecc_result = YAFFS_ECC_RESULT_FIXED;
+ 			else
+-				*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
++				*ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
+ 		}
+ 	} else {
+ 		/* Must allocate enough memory for spare+2*sizeof(int) */
+ 		/* for ecc results from device. */
+-		struct yaffs_NANDSpare nspare;
++		struct yaffs_nand_spare nspare;
+ 
+ 		memset(&nspare, 0, sizeof(nspare));
+ 
+-		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data,
+-					(yaffs_Spare *) &nspare);
+-		memcpy(spare, &nspare, sizeof(yaffs_Spare));
++		retVal = dev->param.read_chunk_fn(dev, nand_chunk, data,
++					(yaffs_spare *) &nspare);
++		memcpy(spare, &nspare, sizeof(yaffs_spare));
+ 		if (data && doErrorCorrection) {
+ 			if (nspare.eccres1 > 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>mtd ecc error fix performed on chunk %d:0"
+-				    TENDSTR), chunkInNAND));
++				    TENDSTR), nand_chunk));
+ 			} else if (nspare.eccres1 < 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>mtd ecc error unfixed on chunk %d:0"
+-				    TENDSTR), chunkInNAND));
++				    TENDSTR), nand_chunk));
+ 			}
+ 
+ 			if (nspare.eccres2 > 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>mtd ecc error fix performed on chunk %d:1"
+-				    TENDSTR), chunkInNAND));
++				    TENDSTR), nand_chunk));
+ 			} else if (nspare.eccres2 < 0) {
+ 				T(YAFFS_TRACE_ERROR,
+ 				  (TSTR
+ 				   ("**>>mtd ecc error unfixed on chunk %d:1"
+-				    TENDSTR), chunkInNAND));
++				    TENDSTR), nand_chunk));
+ 			}
+ 
+ 			if (nspare.eccres1 || nspare.eccres2) {
+ 				/* We had a data problem on this page */
+-				yaffs_HandleReadDataError(dev, chunkInNAND);
++				yaffs_handle_rd_data_error(dev, nand_chunk);
+ 			}
+ 
+ 			if (nspare.eccres1 < 0 || nspare.eccres2 < 0)
+-				*eccResult = YAFFS_ECC_RESULT_UNFIXED;
++				*ecc_result = YAFFS_ECC_RESULT_UNFIXED;
+ 			else if (nspare.eccres1 > 0 || nspare.eccres2 > 0)
+-				*eccResult = YAFFS_ECC_RESULT_FIXED;
++				*ecc_result = YAFFS_ECC_RESULT_FIXED;
+ 			else
+-				*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
++				*ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
+ 
+ 		}
+ 	}
+@@ -300,17 +298,17 @@ static int yaffs_ReadChunkFromNAND(struc
+ }
+ 
+ #ifdef NOTYET
+-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
+-				  int chunkInNAND)
++static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev,
++				  int nand_chunk)
+ {
+ 	static int init;
+ 	static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK];
+ 	static __u8 data[YAFFS_BYTES_PER_CHUNK];
+ 	/* Might as well always allocate the larger size for */
+-	/* dev->useNANDECC == true; */
+-	static __u8 spare[sizeof(struct yaffs_NANDSpare)];
++	/* dev->param.use_nand_ecc == true; */
++	static __u8 spare[sizeof(struct yaffs_nand_spare)];
+ 
+-	dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare);
++	dev->param.read_chunk_fn(dev, nand_chunk, data, (yaffs_spare *) spare);
+ 
+ 	if (!init) {
+ 		memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK);
+@@ -331,14 +329,14 @@ static int yaffs_CheckChunkErased(struct
+  * Functions for robustisizing
+  */
+ 
+-static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND)
++static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk)
+ {
+-	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
++	int flash_block = nand_chunk / dev->param.chunks_per_block;
+ 
+ 	/* Mark the block for retirement */
+-	yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1;
++	yaffs_get_block_info(dev, flash_block + dev->block_offset)->needs_retiring = 1;
+ 	T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
+-	  (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND));
++	  (TSTR("**>>Block %d marked for retirement" TENDSTR), flash_block));
+ 
+ 	/* TODO:
+ 	 * Just do a garbage collection on the affected block
+@@ -348,44 +346,44 @@ static void yaffs_HandleReadDataError(ya
+ }
+ 
+ #ifdef NOTYET
+-static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND)
++static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk)
+ {
+ }
+ 
+-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
++static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk,
+ 				     const __u8 *data,
+-				     const yaffs_Spare *spare)
++				     const yaffs_spare *spare)
+ {
+ }
+ 
+-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
+-				    const yaffs_Spare *spare)
++static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk,
++				    const yaffs_spare *spare)
+ {
+ }
+ 
+-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND)
++static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk)
+ {
+-	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
++	int flash_block = nand_chunk / dev->param.chunks_per_block;
+ 
+ 	/* Mark the block for retirement */
+-	yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1;
++	yaffs_get_block_info(dev, flash_block)->needs_retiring = 1;
+ 	/* Delete the chunk */
+-	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
++	yaffs_chunk_del(dev, nand_chunk, 1, __LINE__);
+ }
+ 
+-static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1,
+-			       const yaffs_Spare *s0, const yaffs_Spare *s1)
++static int yaffs_verify_cmp(const __u8 *d0, const __u8 *d1,
++			       const yaffs_spare *s0, const yaffs_spare *s1)
+ {
+ 
+ 	if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 ||
+-	    s0->tagByte0 != s1->tagByte0 ||
+-	    s0->tagByte1 != s1->tagByte1 ||
+-	    s0->tagByte2 != s1->tagByte2 ||
+-	    s0->tagByte3 != s1->tagByte3 ||
+-	    s0->tagByte4 != s1->tagByte4 ||
+-	    s0->tagByte5 != s1->tagByte5 ||
+-	    s0->tagByte6 != s1->tagByte6 ||
+-	    s0->tagByte7 != s1->tagByte7 ||
++	    s0->tb0 != s1->tb0 ||
++	    s0->tb1 != s1->tb1 ||
++	    s0->tb2 != s1->tb2 ||
++	    s0->tb3 != s1->tb3 ||
++	    s0->tb4 != s1->tb4 ||
++	    s0->tb5 != s1->tb5 ||
++	    s0->tb6 != s1->tb6 ||
++	    s0->tb7 != s1->tb7 ||
+ 	    s0->ecc1[0] != s1->ecc1[0] ||
+ 	    s0->ecc1[1] != s1->ecc1[1] ||
+ 	    s0->ecc1[2] != s1->ecc1[2] ||
+@@ -398,53 +396,53 @@ static int yaffs_VerifyCompare(const __u
+ }
+ #endif				/* NOTYET */
+ 
+-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
+-						int chunkInNAND,
++int yaffs_tags_compat_wr(yaffs_dev_t *dev,
++						int nand_chunk,
+ 						const __u8 *data,
+-						const yaffs_ExtendedTags *eTags)
++						const yaffs_ext_tags *eTags)
+ {
+-	yaffs_Spare spare;
+-	yaffs_Tags tags;
++	yaffs_spare spare;
++	yaffs_tags_t tags;
+ 
+-	yaffs_SpareInitialise(&spare);
++	yaffs_spare_init(&spare);
+ 
+-	if (eTags->chunkDeleted)
+-		spare.pageStatus = 0;
++	if (eTags->is_deleted)
++		spare.page_status = 0;
+ 	else {
+-		tags.objectId = eTags->objectId;
+-		tags.chunkId = eTags->chunkId;
++		tags.obj_id = eTags->obj_id;
++		tags.chunk_id = eTags->chunk_id;
+ 
+-		tags.byteCountLSB = eTags->byteCount & 0x3ff;
++		tags.n_bytes_lsb = eTags->n_bytes & 0x3ff;
+ 
+-		if (dev->nDataBytesPerChunk >= 1024)
+-			tags.byteCountMSB = (eTags->byteCount >> 10) & 3;
++		if (dev->data_bytes_per_chunk >= 1024)
++			tags.n_bytes_msb = (eTags->n_bytes >> 10) & 3;
+ 		else
+-			tags.byteCountMSB = 3;
++			tags.n_bytes_msb = 3;
+ 
+ 
+-		tags.serialNumber = eTags->serialNumber;
++		tags.serial_number = eTags->serial_number;
+ 
+-		if (!dev->useNANDECC && data)
+-			yaffs_CalcECC(data, &spare);
++		if (!dev->param.use_nand_ecc && data)
++			yaffs_calc_ecc(data, &spare);
+ 
+-		yaffs_LoadTagsIntoSpare(&spare, &tags);
++		yaffs_load_tags_to_spare(&spare, &tags);
+ 
+ 	}
+ 
+-	return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare);
++	return yaffs_wr_nand(dev, nand_chunk, data, &spare);
+ }
+ 
+-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
+-						     int chunkInNAND,
++int yaffs_tags_compat_rd(yaffs_dev_t *dev,
++						     int nand_chunk,
+ 						     __u8 *data,
+-						     yaffs_ExtendedTags *eTags)
++						     yaffs_ext_tags *eTags)
+ {
+ 
+-	yaffs_Spare spare;
+-	yaffs_Tags tags;
+-	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN;
++	yaffs_spare spare;
++	yaffs_tags_t tags;
++	yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_UNKNOWN;
+ 
+-	static yaffs_Spare spareFF;
++	static yaffs_spare spareFF;
+ 	static int init;
+ 
+ 	if (!init) {
+@@ -452,33 +450,33 @@ int yaffs_TagsCompatabilityReadChunkWith
+ 		init = 1;
+ 	}
+ 
+-	if (yaffs_ReadChunkFromNAND
+-	    (dev, chunkInNAND, data, &spare, &eccResult, 1)) {
++	if (yaffs_rd_chunk_nand
++	    (dev, nand_chunk, data, &spare, &ecc_result, 1)) {
+ 		/* eTags may be NULL */
+ 		if (eTags) {
+ 
+ 			int deleted =
+-			    (yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0;
++			    (yaffs_count_bits(spare.page_status) < 7) ? 1 : 0;
+ 
+-			eTags->chunkDeleted = deleted;
+-			eTags->eccResult = eccResult;
+-			eTags->blockBad = 0;	/* We're reading it */
++			eTags->is_deleted = deleted;
++			eTags->ecc_result = ecc_result;
++			eTags->block_bad = 0;	/* We're reading it */
+ 			/* therefore it is not a bad block */
+-			eTags->chunkUsed =
++			eTags->chunk_used =
+ 			    (memcmp(&spareFF, &spare, sizeof(spareFF)) !=
+ 			     0) ? 1 : 0;
+ 
+-			if (eTags->chunkUsed) {
+-				yaffs_GetTagsFromSpare(dev, &spare, &tags);
++			if (eTags->chunk_used) {
++				yaffs_get_tags_from_spare(dev, &spare, &tags);
+ 
+-				eTags->objectId = tags.objectId;
+-				eTags->chunkId = tags.chunkId;
+-				eTags->byteCount = tags.byteCountLSB;
++				eTags->obj_id = tags.obj_id;
++				eTags->chunk_id = tags.chunk_id;
++				eTags->n_bytes = tags.n_bytes_lsb;
+ 
+-				if (dev->nDataBytesPerChunk >= 1024)
+-					eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10);
++				if (dev->data_bytes_per_chunk >= 1024)
++					eTags->n_bytes |= (((unsigned) tags.n_bytes_msb) << 10);
+ 
+-				eTags->serialNumber = tags.serialNumber;
++				eTags->serial_number = tags.serial_number;
+ 			}
+ 		}
+ 
+@@ -488,49 +486,49 @@ int yaffs_TagsCompatabilityReadChunkWith
+ 	}
+ }
+ 
+-int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
+-					    int blockInNAND)
++int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev,
++					    int flash_block)
+ {
+ 
+-	yaffs_Spare spare;
++	yaffs_spare spare;
+ 
+-	memset(&spare, 0xff, sizeof(yaffs_Spare));
++	memset(&spare, 0xff, sizeof(yaffs_spare));
+ 
+-	spare.blockStatus = 'Y';
++	spare.block_status = 'Y';
+ 
+-	yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL,
++	yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block, NULL,
+ 			       &spare);
+-	yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1,
++	yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block + 1,
+ 			       NULL, &spare);
+ 
+ 	return YAFFS_OK;
+ 
+ }
+ 
+-int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
+-					  int blockNo,
+-					  yaffs_BlockState *state,
+-					  __u32 *sequenceNumber)
++int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev,
++					  int block_no,
++					  yaffs_block_state_t *state,
++					  __u32 *seq_number)
+ {
+ 
+-	yaffs_Spare spare0, spare1;
+-	static yaffs_Spare spareFF;
++	yaffs_spare spare0, spare1;
++	static yaffs_spare spareFF;
+ 	static int init;
+-	yaffs_ECCResult dummy;
++	yaffs_ecc_result dummy;
+ 
+ 	if (!init) {
+ 		memset(&spareFF, 0xFF, sizeof(spareFF));
+ 		init = 1;
+ 	}
+ 
+-	*sequenceNumber = 0;
++	*seq_number = 0;
+ 
+-	yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL,
++	yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block, NULL,
+ 				&spare0, &dummy, 1);
+-	yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL,
++	yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1, NULL,
+ 				&spare1, &dummy, 1);
+ 
+-	if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7)
++	if (yaffs_count_bits(spare0.block_status & spare1.block_status) < 7)
+ 		*state = YAFFS_BLOCK_STATE_DEAD;
+ 	else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0)
+ 		*state = YAFFS_BLOCK_STATE_EMPTY;
+--- a/fs/yaffs2/yaffs_tagscompat.h
++++ b/fs/yaffs2/yaffs_tagscompat.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -17,23 +17,23 @@
+ #define __YAFFS_TAGSCOMPAT_H__
+ 
+ #include "yaffs_guts.h"
+-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
+-						int chunkInNAND,
++int yaffs_tags_compat_wr(yaffs_dev_t *dev,
++						int nand_chunk,
+ 						const __u8 *data,
+-						const yaffs_ExtendedTags *tags);
+-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
+-						int chunkInNAND,
++						const yaffs_ext_tags *tags);
++int yaffs_tags_compat_rd(yaffs_dev_t *dev,
++						int nand_chunk,
+ 						__u8 *data,
+-						yaffs_ExtendedTags *tags);
+-int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
+-					    int blockNo);
+-int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
+-					  int blockNo,
+-					  yaffs_BlockState *state,
+-					  __u32 *sequenceNumber);
++						yaffs_ext_tags *tags);
++int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev,
++					    int block_no);
++int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev,
++					  int block_no,
++					  yaffs_block_state_t *state,
++					  __u32 *seq_number);
+ 
+-void yaffs_CalcTagsECC(yaffs_Tags *tags);
+-int yaffs_CheckECCOnTags(yaffs_Tags *tags);
+-int yaffs_CountBits(__u8 byte);
++void yaffs_calc_tags_ecc(yaffs_tags_t *tags);
++int yaffs_check_tags_ecc(yaffs_tags_t *tags);
++int yaffs_count_bits(__u8 byte);
+ 
+ #endif
+--- a/fs/yaffs2/yaffs_tagsvalidity.c
++++ b/fs/yaffs2/yaffs_tagsvalidity.c
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -13,16 +13,16 @@
+ 
+ #include "yaffs_tagsvalidity.h"
+ 
+-void yaffs_InitialiseTags(yaffs_ExtendedTags *tags)
++void yaffs_init_tags(yaffs_ext_tags *tags)
+ {
+-	memset(tags, 0, sizeof(yaffs_ExtendedTags));
+-	tags->validMarker0 = 0xAAAAAAAA;
+-	tags->validMarker1 = 0x55555555;
++	memset(tags, 0, sizeof(yaffs_ext_tags));
++	tags->validity1 = 0xAAAAAAAA;
++	tags->validty1 = 0x55555555;
+ }
+ 
+-int yaffs_ValidateTags(yaffs_ExtendedTags *tags)
++int yaffs_validate_tags(yaffs_ext_tags *tags)
+ {
+-	return (tags->validMarker0 == 0xAAAAAAAA &&
+-		tags->validMarker1 == 0x55555555);
++	return (tags->validity1 == 0xAAAAAAAA &&
++		tags->validty1 == 0x55555555);
+ 
+ }
+--- a/fs/yaffs2/yaffs_tagsvalidity.h
++++ b/fs/yaffs2/yaffs_tagsvalidity.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -19,6 +19,6 @@
+ 
+ #include "yaffs_guts.h"
+ 
+-void yaffs_InitialiseTags(yaffs_ExtendedTags *tags);
+-int yaffs_ValidateTags(yaffs_ExtendedTags *tags);
++void yaffs_init_tags(yaffs_ext_tags *tags);
++int yaffs_validate_tags(yaffs_ext_tags *tags);
+ #endif
+--- /dev/null
++++ b/fs/yaffs2/yaffs_trace.h
+@@ -0,0 +1,60 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++
++
++#ifndef __YTRACE_H__
++#define __YTRACE_H__
++
++extern unsigned int yaffs_trace_mask;
++extern unsigned int yaffs_wr_attempts;
++
++/*
++ * Tracing flags.
++ * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
++ */
++
++#define YAFFS_TRACE_OS			0x00000002
++#define YAFFS_TRACE_ALLOCATE		0x00000004
++#define YAFFS_TRACE_SCAN		0x00000008
++#define YAFFS_TRACE_BAD_BLOCKS		0x00000010
++#define YAFFS_TRACE_ERASE		0x00000020
++#define YAFFS_TRACE_GC			0x00000040
++#define YAFFS_TRACE_WRITE		0x00000080
++#define YAFFS_TRACE_TRACING		0x00000100
++#define YAFFS_TRACE_DELETION		0x00000200
++#define YAFFS_TRACE_BUFFERS		0x00000400
++#define YAFFS_TRACE_NANDACCESS		0x00000800
++#define YAFFS_TRACE_GC_DETAIL		0x00001000
++#define YAFFS_TRACE_SCAN_DEBUG		0x00002000
++#define YAFFS_TRACE_MTD			0x00004000
++#define YAFFS_TRACE_CHECKPOINT		0x00008000
++
++#define YAFFS_TRACE_VERIFY		0x00010000
++#define YAFFS_TRACE_VERIFY_NAND		0x00020000
++#define YAFFS_TRACE_VERIFY_FULL		0x00040000
++#define YAFFS_TRACE_VERIFY_ALL		0x000F0000
++
++#define YAFFS_TRACE_SYNC		0x00100000
++#define YAFFS_TRACE_BACKGROUND		0x00200000
++#define YAFFS_TRACE_LOCK		0x00400000
++
++#define YAFFS_TRACE_ERROR		0x40000000
++#define YAFFS_TRACE_BUG			0x80000000
++#define YAFFS_TRACE_ALWAYS		0xF0000000
++
++
++#define T(mask, p) do { if ((mask) & (yaffs_trace_mask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0)
++
++#endif
+--- /dev/null
++++ b/fs/yaffs2/yaffs_verify.c
+@@ -0,0 +1,626 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++
++#include "yaffs_verify.h"
++#include "yaffs_trace.h"
++#include "yaffs_bitmap.h"
++#include "yaffs_getblockinfo.h"
++#include "yaffs_nand.h"
++
++int yaffs_skip_verification(yaffs_dev_t *dev)
++{
++	dev=dev;
++	return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL));
++}
++
++static int yaffs_skip_full_verification(yaffs_dev_t *dev)
++{
++	dev=dev;
++	return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_FULL));
++}
++
++static int yaffs_skip_nand_verification(yaffs_dev_t *dev)
++{
++	dev=dev;
++	return !(yaffs_trace_mask & (YAFFS_TRACE_VERIFY_NAND));
++}
++
++
++static const char *block_stateName[] = {
++"Unknown",
++"Needs scanning",
++"Scanning",
++"Empty",
++"Allocating",
++"Full",
++"Dirty",
++"Checkpoint",
++"Collecting",
++"Dead"
++};
++
++
++void yaffs_verify_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n)
++{
++	int actuallyUsed;
++	int inUse;
++
++	if (yaffs_skip_verification(dev))
++		return;
++
++	/* Report illegal runtime states */
++	if (bi->block_state >= YAFFS_NUMBER_OF_BLOCK_STATES)
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->block_state));
++
++	switch (bi->block_state) {
++	case YAFFS_BLOCK_STATE_UNKNOWN:
++	case YAFFS_BLOCK_STATE_SCANNING:
++	case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR),
++		n, block_stateName[bi->block_state]));
++	}
++
++	/* Check pages in use and soft deletions are legal */
++
++	actuallyUsed = bi->pages_in_use - bi->soft_del_pages;
++
++	if (bi->pages_in_use < 0 || bi->pages_in_use > dev->param.chunks_per_block ||
++	   bi->soft_del_pages < 0 || bi->soft_del_pages > dev->param.chunks_per_block ||
++	   actuallyUsed < 0 || actuallyUsed > dev->param.chunks_per_block)
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pages_in_used %d soft_del_pages %d"TENDSTR),
++		n, bi->pages_in_use, bi->soft_del_pages));
++
++
++	/* Check chunk bitmap legal */
++	inUse = yaffs_count_chunk_bits(dev, n);
++	if (inUse != bi->pages_in_use)
++		T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pages_in_use %d counted chunk bits %d"TENDSTR),
++			n, bi->pages_in_use, inUse));
++
++}
++
++
++
++void yaffs_verify_collected_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n)
++{
++	yaffs_verify_blk(dev, bi, n);
++
++	/* After collection the block should be in the erased state */
++
++	if (bi->block_state != YAFFS_BLOCK_STATE_COLLECTING &&
++			bi->block_state != YAFFS_BLOCK_STATE_EMPTY) {
++		T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR),
++			n, bi->block_state));
++	}
++}
++
++void yaffs_verify_blocks(yaffs_dev_t *dev)
++{
++	int i;
++	int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES];
++	int nIllegalBlockStates = 0;
++
++	if (yaffs_skip_verification(dev))
++		return;
++
++	memset(nBlocksPerState, 0, sizeof(nBlocksPerState));
++
++	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
++		yaffs_block_info_t *bi = yaffs_get_block_info(dev, i);
++		yaffs_verify_blk(dev, bi, i);
++
++		if (bi->block_state < YAFFS_NUMBER_OF_BLOCK_STATES)
++			nBlocksPerState[bi->block_state]++;
++		else
++			nIllegalBlockStates++;
++	}
++
++	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
++	T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR)));
++
++	T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates));
++	if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
++		T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR)));
++
++	for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
++		T(YAFFS_TRACE_VERIFY,
++		  (TSTR("%s %d blocks"TENDSTR),
++		  block_stateName[i], nBlocksPerState[i]));
++
++	if (dev->blocks_in_checkpt != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])
++		T(YAFFS_TRACE_VERIFY,
++		 (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR),
++		 dev->blocks_in_checkpt, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]));
++
++	if (dev->n_erased_blocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])
++		T(YAFFS_TRACE_VERIFY,
++		 (TSTR("Erased block count wrong dev %d count %d"TENDSTR),
++		 dev->n_erased_blocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]));
++
++	if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1)
++		T(YAFFS_TRACE_VERIFY,
++		 (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR),
++		 nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING]));
++
++	T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR)));
++
++}
++
++/*
++ * Verify the object header. oh must be valid, but obj and tags may be NULL in which
++ * case those tests will not be performed.
++ */
++void yaffs_verify_oh(yaffs_obj_t *obj, yaffs_obj_header *oh, yaffs_ext_tags *tags, int parentCheck)
++{
++	if (obj && yaffs_skip_verification(obj->my_dev))
++		return;
++
++	if (!(tags && obj && oh)) {
++		T(YAFFS_TRACE_VERIFY,
++				(TSTR("Verifying object header tags %p obj %p oh %p"TENDSTR),
++				tags, obj, oh));
++		return;
++	}
++
++	if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
++			oh->type > YAFFS_OBJECT_TYPE_MAX)
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
++			tags->obj_id, oh->type));
++
++	if (tags->obj_id != obj->obj_id)
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header mismatch obj_id %d"TENDSTR),
++			tags->obj_id, obj->obj_id));
++
++
++	/*
++	 * Check that the object's parent ids match if parentCheck requested.
++	 *
++	 * Tests do not apply to the root object.
++	 */
++
++	if (parentCheck && tags->obj_id > 1 && !obj->parent)
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header mismatch parent_id %d obj->parent is NULL"TENDSTR),
++			tags->obj_id, oh->parent_obj_id));
++
++	if (parentCheck && obj->parent &&
++			oh->parent_obj_id != obj->parent->obj_id &&
++			(oh->parent_obj_id != YAFFS_OBJECTID_UNLINKED ||
++			obj->parent->obj_id != YAFFS_OBJECTID_DELETED))
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header mismatch parent_id %d parent_obj_id %d"TENDSTR),
++			tags->obj_id, oh->parent_obj_id, obj->parent->obj_id));
++
++	if (tags->obj_id > 1 && oh->name[0] == 0) /* Null name */
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header name is NULL"TENDSTR),
++			obj->obj_id));
++
++	if (tags->obj_id > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d header name is 0xFF"TENDSTR),
++			obj->obj_id));
++}
++
++
++#if 0
++/* Not being used, but don't want to throw away yet */
++int yaffs_verify_tnode_worker(yaffs_obj_t *obj, yaffs_tnode_t *tn,
++					__u32 level, int chunk_offset)
++{
++	int i;
++	yaffs_dev_t *dev = obj->my_dev;
++	int ok = 1;
++
++	if (tn) {
++		if (level > 0) {
++
++			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
++				if (tn->internal[i]) {
++					ok = yaffs_verify_tnode_worker(obj,
++							tn->internal[i],
++							level - 1,
++							(chunk_offset<<YAFFS_TNODES_INTERNAL_BITS) + i);
++				}
++			}
++		} else if (level == 0) {
++			yaffs_ext_tags tags;
++			__u32 obj_id = obj->obj_id;
++
++			chunk_offset <<=  YAFFS_TNODES_LEVEL0_BITS;
++
++			for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) {
++				__u32 theChunk = yaffs_get_group_base(dev, tn, i);
++
++				if (theChunk > 0) {
++					/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.obj_id,tags.chunk_id,theChunk)); */
++					yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, &tags);
++					if (tags.obj_id != obj_id || tags.chunk_id != chunk_offset) {
++						T(~0, (TSTR("Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
++							obj_id, chunk_offset, theChunk,
++							tags.obj_id, tags.chunk_id));
++					}
++				}
++				chunk_offset++;
++			}
++		}
++	}
++
++	return ok;
++
++}
++
++#endif
++
++void yaffs_verify_file(yaffs_obj_t *obj)
++{
++	int requiredTallness;
++	int actualTallness;
++	__u32 lastChunk;
++	__u32 x;
++	__u32 i;
++	yaffs_dev_t *dev;
++	yaffs_ext_tags tags;
++	yaffs_tnode_t *tn;
++	__u32 obj_id;
++
++	if (!obj)
++		return;
++
++	if (yaffs_skip_verification(obj->my_dev))
++		return;
++
++	dev = obj->my_dev;
++	obj_id = obj->obj_id;
++
++	/* Check file size is consistent with tnode depth */
++	lastChunk =  obj->variant.file_variant.file_size / dev->data_bytes_per_chunk + 1;
++	x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS;
++	requiredTallness = 0;
++	while (x > 0) {
++		x >>= YAFFS_TNODES_INTERNAL_BITS;
++		requiredTallness++;
++	}
++
++	actualTallness = obj->variant.file_variant.top_level;
++
++	/* Check that the chunks in the tnode tree are all correct.
++	 * We do this by scanning through the tnode tree and
++	 * checking the tags for every chunk match.
++	 */
++
++	if (yaffs_skip_nand_verification(dev))
++		return;
++
++	for (i = 1; i <= lastChunk; i++) {
++		tn = yaffs_find_tnode_0(dev, &obj->variant.file_variant, i);
++
++		if (tn) {
++			__u32 theChunk = yaffs_get_group_base(dev, tn, i);
++			if (theChunk > 0) {
++				/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),obj_id,i,theChunk)); */
++				yaffs_rd_chunk_tags_nand(dev, theChunk, NULL, &tags);
++				if (tags.obj_id != obj_id || tags.chunk_id != i) {
++					T(~0, (TSTR("Object %d chunk_id %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
++						obj_id, i, theChunk,
++						tags.obj_id, tags.chunk_id));
++				}
++			}
++		}
++	}
++}
++
++
++void yaffs_verify_link(yaffs_obj_t *obj)
++{
++	if (obj && yaffs_skip_verification(obj->my_dev))
++		return;
++
++	/* Verify sane equivalent object */
++}
++
++void yaffs_verify_symlink(yaffs_obj_t *obj)
++{
++	if (obj && yaffs_skip_verification(obj->my_dev))
++		return;
++
++	/* Verify symlink string */
++}
++
++void yaffs_verify_special(yaffs_obj_t *obj)
++{
++	if (obj && yaffs_skip_verification(obj->my_dev))
++		return;
++}
++
++void yaffs_verify_obj(yaffs_obj_t *obj)
++{
++	yaffs_dev_t *dev;
++
++	__u32 chunkMin;
++	__u32 chunkMax;
++
++	__u32 chunk_idOk;
++	__u32 chunkInRange;
++	__u32 chunkShouldNotBeDeleted;
++	__u32 chunkValid;
++
++	if (!obj)
++		return;
++
++	if (obj->being_created)
++		return;
++
++	dev = obj->my_dev;
++
++	if (yaffs_skip_verification(dev))
++		return;
++
++	/* Check sane object header chunk */
++
++	chunkMin = dev->internal_start_block * dev->param.chunks_per_block;
++	chunkMax = (dev->internal_end_block+1) * dev->param.chunks_per_block - 1;
++
++	chunkInRange = (((unsigned)(obj->hdr_chunk)) >= chunkMin && ((unsigned)(obj->hdr_chunk)) <= chunkMax);
++	chunk_idOk = chunkInRange || (obj->hdr_chunk == 0);
++	chunkValid = chunkInRange &&
++			yaffs_check_chunk_bit(dev,
++					obj->hdr_chunk / dev->param.chunks_per_block,
++					obj->hdr_chunk % dev->param.chunks_per_block);
++	chunkShouldNotBeDeleted = chunkInRange && !chunkValid;
++
++	if (!obj->fake &&
++			(!chunk_idOk || chunkShouldNotBeDeleted)) {
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d has chunk_id %d %s %s"TENDSTR),
++			obj->obj_id, obj->hdr_chunk,
++			chunk_idOk ? "" : ",out of range",
++			chunkShouldNotBeDeleted ? ",marked as deleted" : ""));
++	}
++
++	if (chunkValid && !yaffs_skip_nand_verification(dev)) {
++		yaffs_ext_tags tags;
++		yaffs_obj_header *oh;
++		__u8 *buffer = yaffs_get_temp_buffer(dev, __LINE__);
++
++		oh = (yaffs_obj_header *)buffer;
++
++		yaffs_rd_chunk_tags_nand(dev, obj->hdr_chunk, buffer,
++				&tags);
++
++		yaffs_verify_oh(obj, oh, &tags, 1);
++
++		yaffs_release_temp_buffer(dev, buffer, __LINE__);
++	}
++
++	/* Verify it has a parent */
++	if (obj && !obj->fake &&
++			(!obj->parent || obj->parent->my_dev != dev)) {
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR),
++			obj->obj_id, obj->parent));
++	}
++
++	/* Verify parent is a directory */
++	if (obj->parent && obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
++		T(YAFFS_TRACE_VERIFY,
++			(TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR),
++			obj->obj_id, obj->parent->variant_type));
++	}
++
++	switch (obj->variant_type) {
++	case YAFFS_OBJECT_TYPE_FILE:
++		yaffs_verify_file(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_SYMLINK:
++		yaffs_verify_symlink(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_DIRECTORY:
++		yaffs_verify_dir(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_HARDLINK:
++		yaffs_verify_link(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_SPECIAL:
++		yaffs_verify_special(obj);
++		break;
++	case YAFFS_OBJECT_TYPE_UNKNOWN:
++	default:
++		T(YAFFS_TRACE_VERIFY,
++		(TSTR("Obj %d has illegaltype %d"TENDSTR),
++		obj->obj_id, obj->variant_type));
++		break;
++	}
++}
++
++void yaffs_verify_objects(yaffs_dev_t *dev)
++{
++	yaffs_obj_t *obj;
++	int i;
++	struct ylist_head *lh;
++
++	if (yaffs_skip_verification(dev))
++		return;
++
++	/* Iterate through the objects in each hash entry */
++
++	for (i = 0; i <  YAFFS_NOBJECT_BUCKETS; i++) {
++		ylist_for_each(lh, &dev->obj_bucket[i].list) {
++			if (lh) {
++				obj = ylist_entry(lh, yaffs_obj_t, hash_link);
++				yaffs_verify_obj(obj);
++			}
++		}
++	}
++}
++
++
++void yaffs_verify_obj_in_dir(yaffs_obj_t *obj)
++{
++	struct ylist_head *lh;
++	yaffs_obj_t *listObj;
++
++	int count = 0;
++
++	if (!obj) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR)));
++		YBUG();
++		return;
++	}
++
++	if (yaffs_skip_verification(obj->my_dev))
++		return;
++
++	if (!obj->parent) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR)));
++		YBUG();
++		return;
++	}
++
++	if (obj->parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR)));
++		YBUG();
++	}
++
++	/* Iterate through the objects in each hash entry */
++
++	ylist_for_each(lh, &obj->parent->variant.dir_variant.children) {
++		if (lh) {
++			listObj = ylist_entry(lh, yaffs_obj_t, siblings);
++			yaffs_verify_obj(listObj);
++			if (obj == listObj)
++				count++;
++		}
++	 }
++
++	if (count != 1) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count));
++		YBUG();
++	}
++}
++
++void yaffs_verify_dir(yaffs_obj_t *directory)
++{
++	struct ylist_head *lh;
++	yaffs_obj_t *listObj;
++
++	if (!directory) {
++		YBUG();
++		return;
++	}
++
++	if (yaffs_skip_full_verification(directory->my_dev))
++		return;
++
++	if (directory->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
++		T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variant_type));
++		YBUG();
++	}
++
++	/* Iterate through the objects in each hash entry */
++
++	ylist_for_each(lh, &directory->variant.dir_variant.children) {
++		if (lh) {
++			listObj = ylist_entry(lh, yaffs_obj_t, siblings);
++			if (listObj->parent != directory) {
++				T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent));
++				YBUG();
++			}
++			yaffs_verify_obj_in_dir(listObj);
++		}
++	}
++}
++
++static int yaffs_free_verification_failures;
++
++void yaffs_verify_free_chunks(yaffs_dev_t *dev)
++{
++	int counted;
++	int difference;
++
++	if (yaffs_skip_verification(dev))
++		return;
++
++	counted = yaffs_count_free_chunks(dev);
++
++	difference = dev->n_free_chunks - counted;
++
++	if (difference) {
++		T(YAFFS_TRACE_ALWAYS,
++		  (TSTR("Freechunks verification failure %d %d %d" TENDSTR),
++		   dev->n_free_chunks, counted, difference));
++		yaffs_free_verification_failures++;
++	}
++}
++
++int yaffs_verify_file_sane(yaffs_obj_t *in)
++{
++#if 0
++	int chunk;
++	int n_chunks;
++	int fSize;
++	int failed = 0;
++	int obj_id;
++	yaffs_tnode_t *tn;
++	yaffs_tags_t localTags;
++	yaffs_tags_t *tags = &localTags;
++	int theChunk;
++	int is_deleted;
++
++	if (in->variant_type != YAFFS_OBJECT_TYPE_FILE)
++		return YAFFS_FAIL;
++
++	obj_id = in->obj_id;
++	fSize = in->variant.file_variant.file_size;
++	n_chunks =
++	    (fSize + in->my_dev->data_bytes_per_chunk - 1) / in->my_dev->data_bytes_per_chunk;
++
++	for (chunk = 1; chunk <= n_chunks; chunk++) {
++		tn = yaffs_find_tnode_0(in->my_dev, &in->variant.file_variant,
++					   chunk);
++
++		if (tn) {
++
++			theChunk = yaffs_get_group_base(dev, tn, chunk);
++
++			if (yaffs_check_chunk_bits
++			    (dev, theChunk / dev->param.chunks_per_block,
++			     theChunk % dev->param.chunks_per_block)) {
++
++				yaffs_rd_chunk_tags_nand(in->my_dev, theChunk,
++							    tags,
++							    &is_deleted);
++				if (yaffs_tags_match
++				    (tags, in->obj_id, chunk, is_deleted)) {
++					/* found it; */
++
++				}
++			} else {
++
++				failed = 1;
++			}
++
++		} else {
++			/* T(("No level 0 found for %d\n", chunk)); */
++		}
++	}
++
++	return failed ? YAFFS_FAIL : YAFFS_OK;
++#else
++	in=in;
++	return YAFFS_OK;
++#endif
++}
+--- /dev/null
++++ b/fs/yaffs2/yaffs_verify.h
+@@ -0,0 +1,39 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#ifndef __YAFFS_VERIFY_H__
++#define __YAFFS_VERIFY_H__
++
++#include "yaffs_guts.h"
++
++void yaffs_verify_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n);
++void yaffs_verify_collected_blk(yaffs_dev_t *dev, yaffs_block_info_t *bi, int n);
++void yaffs_verify_blocks(yaffs_dev_t *dev);
++
++void yaffs_verify_oh(yaffs_obj_t *obj, yaffs_obj_header *oh, yaffs_ext_tags *tags, int parentCheck);
++void yaffs_verify_file(yaffs_obj_t *obj);
++void yaffs_verify_link(yaffs_obj_t *obj);
++void yaffs_verify_symlink(yaffs_obj_t *obj);
++void yaffs_verify_special(yaffs_obj_t *obj);
++void yaffs_verify_obj(yaffs_obj_t *obj);
++void yaffs_verify_objects(yaffs_dev_t *dev);
++void yaffs_verify_obj_in_dir(yaffs_obj_t *obj);
++void yaffs_verify_dir(yaffs_obj_t *directory);
++void yaffs_verify_free_chunks(yaffs_dev_t *dev);
++
++int yaffs_verify_file_sane(yaffs_obj_t *obj);
++
++int yaffs_skip_verification(yaffs_dev_t *dev);
++
++#endif
++
+--- /dev/null
++++ b/fs/yaffs2/yaffs_vfs_glue.c
+@@ -0,0 +1,3576 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ * Acknowledgements:
++ * Luc van OostenRyck for numerous patches.
++ * Nick Bane for numerous patches.
++ * Nick Bane for 2.5/2.6 integration.
++ * Andras Toth for mknod rdev issue.
++ * Michael Fischer for finding the problem with inode inconsistency.
++ * Some code bodily lifted from JFFS
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++/*
++ *
++ * This is the file system front-end to YAFFS that hooks it up to
++ * the VFS.
++ *
++ * Special notes:
++ * >> 2.4: sb->u.generic_sbp points to the yaffs_dev_t associated with
++ *         this superblock
++ * >> 2.6: sb->s_fs_info  points to the yaffs_dev_t associated with this
++ *         superblock
++ * >> inode->u.generic_ip points to the associated yaffs_obj_t.
++ */
++
++/*
++ * There are two variants of the VFS glue code. This variant should compile
++ * for any version of Linux.
++ */
++#include <linux/version.h>
++
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 10))
++#define YAFFS_COMPILE_BACKGROUND
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6, 23))
++#define YAFFS_COMPILE_FREEZER
++#endif
++#endif
++
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28))
++#define YAFFS_COMPILE_EXPORTFS
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35))
++#define YAFFS_USE_SETATTR_COPY
++#define YAFFS_USE_TRUNCATE_SETSIZE
++#endif
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,35))
++#define YAFFS_HAS_EVICT_INODE
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13))
++#define YAFFS_NEW_FOLLOW_LINK 1
++#else
++#define YAFFS_NEW_FOLLOW_LINK 0
++#endif
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
++#include <linux/config.h>
++#endif
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/fs.h>
++#include <linux/proc_fs.h>
++#include <linux/smp_lock.h>
++#include <linux/pagemap.h>
++#include <linux/mtd/mtd.h>
++#include <linux/interrupt.h>
++#include <linux/string.h>
++#include <linux/ctype.h>
++
++#if (YAFFS_NEW_FOLLOW_LINK == 1)
++#include <linux/namei.h>
++#endif
++
++#ifdef YAFFS_COMPILE_EXPORTFS
++#include <linux/exportfs.h>
++#endif
++
++#ifdef YAFFS_COMPILE_BACKGROUND
++#include <linux/kthread.h>
++#include <linux/delay.h>
++#endif
++#ifdef YAFFS_COMPILE_FREEZER
++#include <linux/freezer.h>
++#endif
++
++#include <asm/div64.h>
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++
++#include <linux/statfs.h>
++
++#define UnlockPage(p) unlock_page(p)
++#define Page_Uptodate(page)	test_bit(PG_uptodate, &(page)->flags)
++
++/* FIXME: use sb->s_id instead ? */
++#define yaffs_devname(sb, buf)	bdevname(sb->s_bdev, buf)
++
++#else
++
++#include <linux/locks.h>
++#define	BDEVNAME_SIZE		0
++#define	yaffs_devname(sb, buf)	kdevname(sb->s_dev)
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0))
++/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */
++#define __user
++#endif
++
++#endif
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26))
++#define YPROC_ROOT  (&proc_root)
++#else
++#define YPROC_ROOT  NULL
++#endif
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
++#define Y_INIT_TIMER(a)	init_timer(a)
++#else
++#define Y_INIT_TIMER(a)	init_timer_on_stack(a)
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++#define WRITE_SIZE_STR "writesize"
++#define WRITE_SIZE(mtd) ((mtd)->writesize)
++#else
++#define WRITE_SIZE_STR "oobblock"
++#define WRITE_SIZE(mtd) ((mtd)->oobblock)
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27))
++#define YAFFS_USE_WRITE_BEGIN_END 1
++#else
++#define YAFFS_USE_WRITE_BEGIN_END 0
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28))
++static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size)
++{
++	uint64_t result = partition_size;
++	do_div(result, block_size);
++	return (uint32_t)result;
++}
++#else
++#define YCALCBLOCKS(s, b) ((s)/(b))
++#endif
++
++#include <linux/uaccess.h>
++#include <linux/mtd/mtd.h>
++
++#include "yportenv.h"
++#include "yaffs_trace.h"
++#include "yaffs_guts.h"
++
++#include "yaffs_linux.h"
++
++#include "yaffs_mtdif.h"
++#include "yaffs_mtdif1.h"
++#include "yaffs_mtdif2.h"
++
++unsigned int yaffs_trace_mask = YAFFS_TRACE_BAD_BLOCKS | YAFFS_TRACE_ALWAYS;
++unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS;
++unsigned int yaffs_auto_checkpoint = 1;
++unsigned int yaffs_gc_control = 1;
++unsigned int yaffs_bg_enable = 1;
++
++/* Module Parameters */
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++module_param(yaffs_trace_mask, uint, 0644);
++module_param(yaffs_wr_attempts, uint, 0644);
++module_param(yaffs_auto_checkpoint, uint, 0644);
++module_param(yaffs_gc_control, uint, 0644);
++module_param(yaffs_bg_enable, uint, 0644);
++#else
++MODULE_PARM(yaffs_trace_mask, "i");
++MODULE_PARM(yaffs_wr_attempts, "i");
++MODULE_PARM(yaffs_auto_checkpoint, "i");
++MODULE_PARM(yaffs_gc_control, "i");
++#endif
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
++/* use iget and read_inode */
++#define Y_IGET(sb, inum) iget((sb), (inum))
++static void yaffs_read_inode(struct inode *inode);
++
++#else
++/* Call local equivalent */
++#define YAFFS_USE_OWN_IGET
++#define Y_IGET(sb, inum) yaffs_iget((sb), (inum))
++
++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino);
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
++#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private)
++#else
++#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip)
++#endif
++
++#define yaffs_InodeToObject(iptr) ((yaffs_obj_t *)(yaffs_InodeToObjectLV(iptr)))
++#define yaffs_dentry_to_obj(dptr) yaffs_InodeToObject((dptr)->d_inode)
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++#define yaffs_SuperToDevice(sb)	((yaffs_dev_t *)sb->s_fs_info)
++#else
++#define yaffs_SuperToDevice(sb)	((yaffs_dev_t *)sb->u.generic_sbp)
++#endif
++
++
++#define update_dir_time(dir) do {\
++			(dir)->i_ctime = (dir)->i_mtime = CURRENT_TIME; \
++		} while(0)
++		
++static void yaffs_put_super(struct super_block *sb);
++
++static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
++				loff_t *pos);
++static ssize_t yaffs_hold_space(struct file *f);
++static void yaffs_release_space(struct file *f);
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs_file_flush(struct file *file, fl_owner_t id);
++#else
++static int yaffs_file_flush(struct file *file);
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
++static int yaffs_sync_object(struct file *file, int datasync);
++#else
++static int yaffs_sync_object(struct file *file, struct dentry *dentry,
++				int datasync);
++#endif
++
++static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir);
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
++			struct nameidata *n);
++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
++					struct nameidata *n);
++#else
++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode);
++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry);
++#endif
++static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
++			struct dentry *dentry);
++static int yaffs_unlink(struct inode *dir, struct dentry *dentry);
++static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
++			const char *symname);
++static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode);
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
++			dev_t dev);
++#else
++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
++			int dev);
++#endif
++static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
++			struct inode *new_dir, struct dentry *new_dentry);
++static int yaffs_setattr(struct dentry *dentry, struct iattr *attr);
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs_sync_fs(struct super_block *sb, int wait);
++static void yaffs_write_super(struct super_block *sb);
++#else
++static int yaffs_sync_fs(struct super_block *sb);
++static int yaffs_write_super(struct super_block *sb);
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf);
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf);
++#else
++static int yaffs_statfs(struct super_block *sb, struct statfs *buf);
++#endif
++
++#ifdef YAFFS_HAS_PUT_INODE
++static void yaffs_put_inode(struct inode *inode);
++#endif
++
++#ifdef YAFFS_HAS_EVICT_INODE
++static void yaffs_evict_inode(struct inode *);
++#else
++static void yaffs_delete_inode(struct inode *);
++static void yaffs_clear_inode(struct inode *);
++#endif
++
++static int yaffs_readpage(struct file *file, struct page *page);
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_writepage(struct page *page, struct writeback_control *wbc);
++#else
++static int yaffs_writepage(struct page *page);
++#endif
++
++#ifdef CONFIG_YAFFS_XATTR
++int yaffs_setxattr(struct dentry *dentry, const char *name,
++			const void *value, size_t size, int flags);
++ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff,
++			size_t size);
++int yaffs_removexattr(struct dentry *dentry, const char *name);
++ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size);
++#endif
++
++
++#if (YAFFS_USE_WRITE_BEGIN_END != 0)
++static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned flags,
++				struct page **pagep, void **fsdata);
++static int yaffs_write_end(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned copied,
++				struct page *pg, void *fsdadata);
++#else
++static int yaffs_prepare_write(struct file *f, struct page *pg,
++				unsigned offset, unsigned to);
++static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
++				unsigned to);
++
++#endif
++
++static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
++				int buflen);
++#if (YAFFS_NEW_FOLLOW_LINK == 1)
++void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias);
++static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
++#else
++static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd);
++#endif
++
++static void yaffs_touch_super(yaffs_dev_t *dev);
++
++static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin);
++
++static int yaffs_vfs_setattr(struct inode *, struct iattr *);
++
++
++static struct address_space_operations yaffs_file_address_operations = {
++	.readpage = yaffs_readpage,
++	.writepage = yaffs_writepage,
++#if (YAFFS_USE_WRITE_BEGIN_END > 0)
++	.write_begin = yaffs_write_begin,
++	.write_end = yaffs_write_end,
++#else
++	.prepare_write = yaffs_prepare_write,
++	.commit_write = yaffs_commit_write,
++#endif
++};
++
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22))
++static const struct file_operations yaffs_file_operations = {
++	.read = do_sync_read,
++	.write = do_sync_write,
++	.aio_read = generic_file_aio_read,
++	.aio_write = generic_file_aio_write,
++	.mmap = generic_file_mmap,
++	.flush = yaffs_file_flush,
++	.fsync = yaffs_sync_object,
++	.splice_read = generic_file_splice_read,
++	.splice_write = generic_file_splice_write,
++	.llseek = generic_file_llseek,
++};
++
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18))
++
++static const struct file_operations yaffs_file_operations = {
++	.read = do_sync_read,
++	.write = do_sync_write,
++	.aio_read = generic_file_aio_read,
++	.aio_write = generic_file_aio_write,
++	.mmap = generic_file_mmap,
++	.flush = yaffs_file_flush,
++	.fsync = yaffs_sync_object,
++	.sendfile = generic_file_sendfile,
++};
++
++#else
++
++static const struct file_operations yaffs_file_operations = {
++	.read = generic_file_read,
++	.write = generic_file_write,
++	.mmap = generic_file_mmap,
++	.flush = yaffs_file_flush,
++	.fsync = yaffs_sync_object,
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++	.sendfile = generic_file_sendfile,
++#endif
++};
++#endif
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,25))
++static void zero_user_segment(struct page *page, unsigned start, unsigned end)
++{
++	void * kaddr = kmap_atomic(page, KM_USER0);
++	memset(kaddr + start, 0, end - start);
++	kunmap_atomic(kaddr, KM_USER0);
++	flush_dcache_page(page);
++}
++#endif
++
++
++static const struct inode_operations yaffs_file_inode_operations = {
++	.setattr = yaffs_setattr,
++#ifdef CONFIG_YAFFS_XATTR
++	.setxattr = yaffs_setxattr,
++	.getxattr = yaffs_getxattr,
++	.listxattr = yaffs_listxattr,
++	.removexattr = yaffs_removexattr,
++#endif
++};
++
++static const struct inode_operations yaffs_symlink_inode_operations = {
++	.readlink = yaffs_readlink,
++	.follow_link = yaffs_follow_link,
++#if (YAFFS_NEW_FOLLOW_LINK == 1)
++	.put_link = yaffs_put_link,
++#endif
++	.setattr = yaffs_setattr,
++#ifdef CONFIG_YAFFS_XATTR
++	.setxattr = yaffs_setxattr,
++	.getxattr = yaffs_getxattr,
++	.listxattr = yaffs_listxattr,
++	.removexattr = yaffs_removexattr,
++#endif
++};
++
++static const struct inode_operations yaffs_dir_inode_operations = {
++	.create = yaffs_create,
++	.lookup = yaffs_lookup,
++	.link = yaffs_link,
++	.unlink = yaffs_unlink,
++	.symlink = yaffs_symlink,
++	.mkdir = yaffs_mkdir,
++	.rmdir = yaffs_unlink,
++	.mknod = yaffs_mknod,
++	.rename = yaffs_rename,
++	.setattr = yaffs_setattr,
++#ifdef CONFIG_YAFFS_XATTR
++	.setxattr = yaffs_setxattr,
++	.getxattr = yaffs_getxattr,
++	.listxattr = yaffs_listxattr,
++	.removexattr = yaffs_removexattr,
++#endif
++};
++
++static const struct file_operations yaffs_dir_operations = {
++	.read = generic_read_dir,
++	.readdir = yaffs_readdir,
++	.fsync = yaffs_sync_object,
++	.llseek = yaffs_dir_llseek,
++};
++
++static const struct super_operations yaffs_super_ops = {
++	.statfs = yaffs_statfs,
++
++#ifndef YAFFS_USE_OWN_IGET
++	.read_inode = yaffs_read_inode,
++#endif
++#ifdef YAFFS_HAS_PUT_INODE
++	.put_inode = yaffs_put_inode,
++#endif
++	.put_super = yaffs_put_super,
++#ifdef YAFFS_HAS_EVICT_INODE
++	.evict_inode = yaffs_evict_inode,
++#else
++	.delete_inode = yaffs_delete_inode,
++	.clear_inode = yaffs_clear_inode,
++#endif
++	.sync_fs = yaffs_sync_fs,
++	.write_super = yaffs_write_super,
++};
++
++
++static  int yaffs_vfs_setattr(struct inode *inode, struct iattr *attr)
++{
++#ifdef  YAFFS_USE_SETATTR_COPY
++	setattr_copy(inode,attr);
++	return 0;
++#else
++	return inode_setattr(inode, attr);
++#endif
++
++}
++
++static  int yaffs_vfs_setsize(struct inode *inode, loff_t newsize)
++{
++#ifdef  YAFFS_USE_TRUNCATE_SETSIZE
++	truncate_setsize(inode,newsize);
++	return 0;
++#else
++	truncate_inode_pages(&inode->i_data,newsize);
++	return 0;
++#endif
++
++}
++
++static unsigned yaffs_gc_control_callback(yaffs_dev_t *dev)
++{
++	return yaffs_gc_control;
++}
++                	                                                                                          	
++static void yaffs_gross_lock(yaffs_dev_t *dev)
++{
++	T(YAFFS_TRACE_LOCK, (TSTR("yaffs locking %p\n"), current));
++	down(&(yaffs_dev_to_lc(dev)->grossLock));
++	T(YAFFS_TRACE_LOCK, (TSTR("yaffs locked %p\n"), current));
++}
++
++static void yaffs_gross_unlock(yaffs_dev_t *dev)
++{
++	T(YAFFS_TRACE_LOCK, (TSTR("yaffs unlocking %p\n"), current));
++	up(&(yaffs_dev_to_lc(dev)->grossLock));
++}
++
++#ifdef YAFFS_COMPILE_EXPORTFS
++
++static struct inode *
++yaffs2_nfs_get_inode(struct super_block *sb, uint64_t ino, uint32_t generation)
++{
++	return Y_IGET(sb, ino);
++}
++
++static struct dentry *
++yaffs2_fh_to_dentry(struct super_block *sb, struct fid *fid, int fh_len, int fh_type)
++{
++	return generic_fh_to_dentry(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode) ;
++}
++
++static struct dentry *
++ yaffs2_fh_to_parent(struct super_block *sb, struct fid *fid, int fh_len, int fh_type)
++{
++	return generic_fh_to_parent(sb, fid, fh_len, fh_type, yaffs2_nfs_get_inode);
++}
++
++struct dentry *yaffs2_get_parent(struct dentry *dentry)
++{
++
++	struct super_block *sb = dentry->d_inode->i_sb;
++	struct dentry *parent = ERR_PTR(-ENOENT);
++	struct inode *inode;
++	unsigned long parent_ino;
++	yaffs_obj_t *d_obj;
++	yaffs_obj_t *parent_obj;
++
++	d_obj = yaffs_InodeToObject(dentry->d_inode);
++
++	if (d_obj) {
++		parent_obj = d_obj->parent;
++		if (parent_obj) {
++			parent_ino = yaffs_get_obj_inode(parent_obj);
++			inode = Y_IGET(sb, parent_ino);
++
++			if (IS_ERR(inode)) {
++				parent = ERR_CAST(inode);
++			} else {
++				parent = d_obtain_alias(inode);
++				if (!IS_ERR(parent)) {
++					parent = ERR_PTR(-ENOMEM);
++					iput(inode);
++				}
++			}
++		}
++	}
++
++	return parent;
++}
++
++/* Just declare a zero structure as a NULL value implies
++ * using the default functions of exportfs.
++ */
++
++static struct export_operations yaffs_export_ops =
++{
++	.fh_to_dentry = yaffs2_fh_to_dentry,
++	.fh_to_parent = yaffs2_fh_to_parent,
++	.get_parent = yaffs2_get_parent,
++} ;
++
++#endif
++
++/*-----------------------------------------------------------------*/
++/* Directory search context allows us to unlock access to yaffs during
++ * filldir without causing problems with the directory being modified.
++ * This is similar to the tried and tested mechanism used in yaffs direct.
++ *
++ * A search context iterates along a doubly linked list of siblings in the
++ * directory. If the iterating object is deleted then this would corrupt
++ * the list iteration, likely causing a crash. The search context avoids
++ * this by using the remove_obj_fn to move the search context to the
++ * next object before the object is deleted.
++ *
++ * Many readdirs (and thus seach conexts) may be alive simulateously so
++ * each yaffs_dev_t has a list of these.
++ *
++ * A seach context lives for the duration of a readdir.
++ *
++ * All these functions must be called while yaffs is locked.
++ */
++
++struct yaffs_SearchContext {
++	yaffs_dev_t *dev;
++	yaffs_obj_t *dirObj;
++	yaffs_obj_t *nextReturn;
++	struct ylist_head others;
++};
++
++/*
++ * yaffs_NewSearch() creates a new search context, initialises it and
++ * adds it to the device's search context list.
++ *
++ * Called at start of readdir.
++ */
++static struct yaffs_SearchContext * yaffs_NewSearch(yaffs_obj_t *dir)
++{
++	yaffs_dev_t *dev = dir->my_dev;
++	struct yaffs_SearchContext *sc = YMALLOC(sizeof(struct yaffs_SearchContext));
++	if(sc){
++		sc->dirObj = dir;
++		sc->dev = dev;
++		if( ylist_empty(&sc->dirObj->variant.dir_variant.children))
++			sc->nextReturn = NULL;
++		else
++			sc->nextReturn = ylist_entry(
++                                dir->variant.dir_variant.children.next,
++				yaffs_obj_t,siblings);
++		YINIT_LIST_HEAD(&sc->others);
++		ylist_add(&sc->others,&(yaffs_dev_to_lc(dev)->searchContexts));
++	}
++	return sc;
++}
++
++/*
++ * yaffs_search_end() disposes of a search context and cleans up.
++ */
++static void yaffs_search_end(struct yaffs_SearchContext * sc)
++{
++	if(sc){
++		ylist_del(&sc->others);
++		YFREE(sc);
++	}
++}
++
++/*
++ * yaffs_search_advance() moves a search context to the next object.
++ * Called when the search iterates or when an object removal causes
++ * the search context to be moved to the next object.
++ */
++static void yaffs_search_advance(struct yaffs_SearchContext *sc)
++{
++        if(!sc)
++                return;
++
++        if( sc->nextReturn == NULL ||
++                ylist_empty(&sc->dirObj->variant.dir_variant.children))
++                sc->nextReturn = NULL;
++        else {
++                struct ylist_head *next = sc->nextReturn->siblings.next;
++
++                if( next == &sc->dirObj->variant.dir_variant.children)
++                        sc->nextReturn = NULL; /* end of list */
++                else
++                        sc->nextReturn = ylist_entry(next,yaffs_obj_t,siblings);
++        }
++}
++
++/*
++ * yaffs_remove_obj_callback() is called when an object is unlinked.
++ * We check open search contexts and advance any which are currently
++ * on the object being iterated.
++ */
++static void yaffs_remove_obj_callback(yaffs_obj_t *obj)
++{
++
++        struct ylist_head *i;
++        struct yaffs_SearchContext *sc;
++        struct ylist_head *search_contexts = &(yaffs_dev_to_lc(obj->my_dev)->searchContexts);
++
++
++        /* Iterate through the directory search contexts.
++         * If any are currently on the object being removed, then advance
++         * the search context to the next object to prevent a hanging pointer.
++         */
++         ylist_for_each(i, search_contexts) {
++                if (i) {
++                        sc = ylist_entry(i, struct yaffs_SearchContext,others);
++                        if(sc->nextReturn == obj)
++                                yaffs_search_advance(sc);
++                }
++	}
++
++}
++
++
++/*-----------------------------------------------------------------*/
++
++static int yaffs_readlink(struct dentry *dentry, char __user *buffer,
++			int buflen)
++{
++	unsigned char *alias;
++	int ret;
++
++	yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry));
++
++	yaffs_gross_unlock(dev);
++
++	if (!alias)
++		return -ENOMEM;
++
++	ret = vfs_readlink(dentry, buffer, buflen, alias);
++	kfree(alias);
++	return ret;
++}
++
++#if (YAFFS_NEW_FOLLOW_LINK == 1)
++static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
++#else
++static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd)
++#endif
++{
++	unsigned char *alias;
++	int ret;
++	yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	alias = yaffs_get_symlink_alias(yaffs_dentry_to_obj(dentry));
++	yaffs_gross_unlock(dev);
++
++	if (!alias) {
++		ret = -ENOMEM;
++		goto out;
++	}
++
++#if (YAFFS_NEW_FOLLOW_LINK == 1)
++	nd_set_link(nd, alias);
++	ret = (int)alias;
++out:
++	return ERR_PTR(ret);
++#else
++	ret = vfs_follow_link(nd, alias);
++	kfree(alias);
++out:
++	return ret;
++#endif
++}
++
++#if (YAFFS_NEW_FOLLOW_LINK == 1)
++void yaffs_put_link(struct dentry *dentry, struct nameidata *nd, void *alias) {
++	kfree(alias);
++}
++#endif
++
++struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
++				yaffs_obj_t *obj);
++
++/*
++ * Lookup is used to find objects in the fs
++ */
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++
++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry,
++				struct nameidata *n)
++#else
++static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry)
++#endif
++{
++	yaffs_obj_t *obj;
++	struct inode *inode = NULL;	/* NCB 2.5/2.6 needs NULL here */
++
++	yaffs_dev_t *dev = yaffs_InodeToObject(dir)->my_dev;
++
++	if(current != yaffs_dev_to_lc(dev)->readdirProcess)
++		yaffs_gross_lock(dev);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_lookup for %d:%s\n"),
++		yaffs_InodeToObject(dir)->obj_id, dentry->d_name.name));
++
++	obj = yaffs_find_by_name(yaffs_InodeToObject(dir),
++					dentry->d_name.name);
++
++	obj = yaffs_get_equivalent_obj(obj);	/* in case it was a hardlink */
++
++	/* Can't hold gross lock when calling yaffs_get_inode() */
++	if(current != yaffs_dev_to_lc(dev)->readdirProcess)
++		yaffs_gross_unlock(dev);
++
++	if (obj) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_lookup found %d\n"), obj->obj_id));
++
++		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
++
++		if (inode) {
++			T(YAFFS_TRACE_OS,
++				(TSTR("yaffs_loookup dentry \n")));
++/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to
++ * d_add even if NULL inode */
++#if 0
++			/*dget(dentry); // try to solve directory bug */
++			d_add(dentry, inode);
++
++			/* return dentry; */
++			return NULL;
++#endif
++		}
++
++	} else {
++		T(YAFFS_TRACE_OS,(TSTR("yaffs_lookup not found\n")));
++
++	}
++
++/* added NCB for 2.5/6 compatability - forces add even if inode is
++ * NULL which creates dentry hash */
++	d_add(dentry, inode);
++
++	return NULL;
++}
++
++
++#ifdef YAFFS_HAS_PUT_INODE
++
++/* For now put inode is just for debugging
++ * Put inode is called when the inode **structure** is put.
++ */
++static void yaffs_put_inode(struct inode *inode)
++{
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_put_inode: ino %d, count %d\n"), (int)inode->i_ino,
++		atomic_read(&inode->i_count)));
++
++}
++#endif
++
++
++static void yaffs_unstitch_obj(struct inode *inode, yaffs_obj_t *obj)
++{
++	/* Clear the association between the inode and
++	 * the yaffs_obj_t.
++	 */
++	obj->my_inode = NULL;
++	yaffs_InodeToObjectLV(inode) = NULL;
++
++	/* If the object freeing was deferred, then the real
++	 * free happens now.
++	 * This should fix the inode inconsistency problem.
++	 */
++	yaffs_handle_defered_free(obj);
++}
++
++#ifdef YAFFS_HAS_EVICT_INODE
++/* yaffs_evict_inode combines into one operation what was previously done in
++ * yaffs_clear_inode() and yaffs_delete_inode()
++ *
++ */
++static void yaffs_evict_inode( struct inode *inode)
++{
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev;
++	int deleteme = 0;
++
++	obj = yaffs_InodeToObject(inode);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_evict_inode: ino %d, count %d %s\n"), (int)inode->i_ino,
++		atomic_read(&inode->i_count),
++		obj ? "object exists" : "null object"));
++
++	if (!inode->i_nlink && !is_bad_inode(inode))
++		deleteme = 1;
++	truncate_inode_pages(&inode->i_data,0);
++	end_writeback(inode);
++
++	if(deleteme && obj){
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		yaffs_del_obj(obj);
++		yaffs_gross_unlock(dev);
++	}
++	if (obj) {
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		yaffs_unstitch_obj(inode,obj);
++		yaffs_gross_unlock(dev);
++	}
++
++
++}
++#else
++
++/* clear is called to tell the fs to release any per-inode data it holds.
++ * The object might still exist on disk and is just being thrown out of the cache
++ * or else the object has actually been deleted and we're being called via
++ * the chain
++ *   yaffs_delete_inode() -> clear_inode()->yaffs_clear_inode()
++ */
++
++static void yaffs_clear_inode(struct inode *inode)
++{
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev;
++
++	obj = yaffs_InodeToObject(inode);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_clear_inode: ino %d, count %d %s\n"), (int)inode->i_ino,
++		atomic_read(&inode->i_count),
++		obj ? "object exists" : "null object"));
++
++	if (obj) {
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		yaffs_unstitch_obj(inode,obj);
++		yaffs_gross_unlock(dev);
++	}
++
++}
++
++/* delete is called when the link count is zero and the inode
++ * is put (ie. nobody wants to know about it anymore, time to
++ * delete the file).
++ * NB Must call clear_inode()
++ */
++static void yaffs_delete_inode(struct inode *inode)
++{
++	yaffs_obj_t *obj = yaffs_InodeToObject(inode);
++	yaffs_dev_t *dev;
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_delete_inode: ino %d, count %d %s\n"), (int)inode->i_ino,
++		atomic_read(&inode->i_count),
++		obj ? "object exists" : "null object"));
++
++	if (obj) {
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		yaffs_del_obj(obj);
++		yaffs_gross_unlock(dev);
++	}
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13))
++	truncate_inode_pages(&inode->i_data, 0);
++#endif
++	clear_inode(inode);
++}
++#endif
++
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs_file_flush(struct file *file, fl_owner_t id)
++#else
++static int yaffs_file_flush(struct file *file)
++#endif
++{
++	yaffs_obj_t *obj = yaffs_dentry_to_obj(file->f_dentry);
++
++	yaffs_dev_t *dev = obj->my_dev;
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_file_flush object %d (%s)\n"), obj->obj_id,
++		obj->dirty ? "dirty" : "clean"));
++
++	yaffs_gross_lock(dev);
++
++	yaffs_flush_file(obj, 1, 0);
++
++	yaffs_gross_unlock(dev);
++
++	return 0;
++}
++
++static int yaffs_readpage_nolock(struct file *f, struct page *pg)
++{
++	/* Lifted from jffs2 */
++
++	yaffs_obj_t *obj;
++	unsigned char *pg_buf;
++	int ret;
++
++	yaffs_dev_t *dev;
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_readpage_nolock at %08x, size %08x\n"),
++		(unsigned)(pg->index << PAGE_CACHE_SHIFT),
++		(unsigned)PAGE_CACHE_SIZE));
++
++	obj = yaffs_dentry_to_obj(f->f_dentry);
++
++	dev = obj->my_dev;
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++	BUG_ON(!PageLocked(pg));
++#else
++	if (!PageLocked(pg))
++		PAGE_BUG(pg);
++#endif
++
++	pg_buf = kmap(pg);
++	/* FIXME: Can kmap fail? */
++
++	yaffs_gross_lock(dev);
++
++	ret = yaffs_file_rd(obj, pg_buf,
++				pg->index << PAGE_CACHE_SHIFT,
++				PAGE_CACHE_SIZE);
++
++	yaffs_gross_unlock(dev);
++
++	if (ret >= 0)
++		ret = 0;
++
++	if (ret) {
++		ClearPageUptodate(pg);
++		SetPageError(pg);
++	} else {
++		SetPageUptodate(pg);
++		ClearPageError(pg);
++	}
++
++	flush_dcache_page(pg);
++	kunmap(pg);
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage_nolock done\n")));
++	return ret;
++}
++
++static int yaffs_readpage_unlock(struct file *f, struct page *pg)
++{
++	int ret = yaffs_readpage_nolock(f, pg);
++	UnlockPage(pg);
++	return ret;
++}
++
++static int yaffs_readpage(struct file *f, struct page *pg)
++{
++	int ret;
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage\n")));
++	ret=yaffs_readpage_unlock(f, pg);
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_readpage done\n")));
++	return ret;
++}
++
++/* writepage inspired by/stolen from smbfs */
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_writepage(struct page *page, struct writeback_control *wbc)
++#else
++static int yaffs_writepage(struct page *page)
++#endif
++{
++	yaffs_dev_t *dev;
++	struct address_space *mapping = page->mapping;
++	struct inode *inode;
++	unsigned long end_index;
++	char *buffer;
++	yaffs_obj_t *obj;
++	int nWritten = 0;
++	unsigned n_bytes;
++	loff_t i_size;
++
++	if (!mapping)
++		BUG();
++	inode = mapping->host;
++	if (!inode)
++		BUG();
++	i_size = i_size_read(inode);
++
++	end_index = i_size >> PAGE_CACHE_SHIFT;
++
++	if(page->index < end_index)
++		n_bytes = PAGE_CACHE_SIZE;
++	else {
++		n_bytes = i_size & (PAGE_CACHE_SIZE -1);
++
++		if (page->index > end_index || !n_bytes) {
++			T(YAFFS_TRACE_OS,
++				(TSTR("yaffs_writepage at %08x, inode size = %08x!!!\n"),
++				(unsigned)(page->index << PAGE_CACHE_SHIFT),
++				(unsigned)inode->i_size));
++			T(YAFFS_TRACE_OS,
++				(TSTR("                -> don't care!!\n")));
++
++			zero_user_segment(page,0,PAGE_CACHE_SIZE);
++			set_page_writeback(page);
++			unlock_page(page);
++			end_page_writeback(page);
++			return 0;
++		}
++	}
++
++	if(n_bytes != PAGE_CACHE_SIZE)
++		zero_user_segment(page,n_bytes,PAGE_CACHE_SIZE);
++
++	get_page(page);
++
++	buffer = kmap(page);
++
++	obj = yaffs_InodeToObject(inode);
++	dev = obj->my_dev;
++	yaffs_gross_lock(dev);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_writepage at %08x, size %08x\n"),
++		(unsigned)(page->index << PAGE_CACHE_SHIFT), n_bytes));
++	T(YAFFS_TRACE_OS,
++		(TSTR("writepag0: obj = %05x, ino = %05x\n"),
++		(int)obj->variant.file_variant.file_size, (int)inode->i_size));
++
++	nWritten = yaffs_wr_file(obj, buffer,
++			page->index << PAGE_CACHE_SHIFT, n_bytes, 0);
++
++	yaffs_touch_super(dev);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("writepag1: obj = %05x, ino = %05x\n"),
++		(int)obj->variant.file_variant.file_size, (int)inode->i_size));
++
++	yaffs_gross_unlock(dev);
++
++	kunmap(page);
++	set_page_writeback(page);
++	unlock_page(page);
++	end_page_writeback(page);
++	put_page(page);
++
++	return (nWritten == n_bytes) ? 0 : -ENOSPC;
++}
++
++
++#if (YAFFS_USE_WRITE_BEGIN_END > 0)
++static int yaffs_write_begin(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned flags,
++				struct page **pagep, void **fsdata)
++{
++	struct page *pg = NULL;
++	pgoff_t index = pos >> PAGE_CACHE_SHIFT;
++
++	int ret = 0;
++	int space_held = 0;
++
++	/* Get a page */
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
++	pg = grab_cache_page_write_begin(mapping, index, flags);
++#else
++	pg = __grab_cache_page(mapping, index);
++#endif
++
++	*pagep = pg;
++	if (!pg) {
++		ret =  -ENOMEM;
++		goto out;
++	}
++	T(YAFFS_TRACE_OS,
++		(TSTR("start yaffs_write_begin index %d(%x) uptodate %d\n"),
++		(int)index,(int)index,Page_Uptodate(pg) ? 1 : 0));
++
++	/* Get fs space */
++	space_held = yaffs_hold_space(filp);
++
++	if (!space_held) {
++		ret = -ENOSPC;
++		goto out;
++	}
++
++	/* Update page if required */
++
++	if (!Page_Uptodate(pg))
++		ret = yaffs_readpage_nolock(filp, pg);
++
++	if (ret)
++		goto out;
++
++	/* Happy path return */
++	T(YAFFS_TRACE_OS, (TSTR("end yaffs_write_begin - ok\n")));
++
++	return 0;
++
++out:
++	T(YAFFS_TRACE_OS,
++		(TSTR("end yaffs_write_begin fail returning %d\n"), ret));
++	if (space_held)
++		yaffs_release_space(filp);
++	if (pg) {
++		unlock_page(pg);
++		page_cache_release(pg);
++	}
++	return ret;
++}
++
++#else
++
++static int yaffs_prepare_write(struct file *f, struct page *pg,
++				unsigned offset, unsigned to)
++{
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_prepair_write\n")));
++
++	if (!Page_Uptodate(pg))
++		return yaffs_readpage_nolock(f, pg);
++	return 0;
++}
++#endif
++
++#if (YAFFS_USE_WRITE_BEGIN_END > 0)
++static int yaffs_write_end(struct file *filp, struct address_space *mapping,
++				loff_t pos, unsigned len, unsigned copied,
++				struct page *pg, void *fsdadata)
++{
++	int ret = 0;
++	void *addr, *kva;
++	uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1);
++
++	kva = kmap(pg);
++	addr = kva + offset_into_page;
++
++	T(YAFFS_TRACE_OS,
++		("yaffs_write_end addr %p pos %x n_bytes %d\n",
++		addr,(unsigned)pos, copied));
++
++	ret = yaffs_file_write(filp, addr, copied, &pos);
++
++	if (ret != copied) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_write_end not same size ret %d  copied %d\n"),
++			ret, copied));
++		SetPageError(pg);
++	} else {
++		/* Nothing */
++	}
++
++	kunmap(pg);
++
++	yaffs_release_space(filp);
++	unlock_page(pg);
++	page_cache_release(pg);
++	return ret;
++}
++#else
++
++static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
++				unsigned to)
++{
++	void *addr, *kva;
++
++	loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
++	int n_bytes = to - offset;
++	int nWritten;
++
++	unsigned spos = pos;
++	unsigned saddr;
++
++	kva = kmap(pg);
++	addr = kva + offset;
++
++	saddr = (unsigned) addr;
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_commit_write addr %x pos %x n_bytes %d\n"),
++		saddr, spos, n_bytes));
++
++	nWritten = yaffs_file_write(f, addr, n_bytes, &pos);
++
++	if (nWritten != n_bytes) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_commit_write not same size nWritten %d  n_bytes %d\n"),
++			nWritten, n_bytes));
++		SetPageError(pg);
++	} else {
++		/* Nothing */
++	}
++
++	kunmap(pg);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_commit_write returning %d\n"),
++		nWritten == n_bytes ? 0 : nWritten));
++
++	return nWritten == n_bytes ? 0 : nWritten;
++}
++#endif
++
++
++static void yaffs_fill_inode_from_obj(struct inode *inode, yaffs_obj_t *obj)
++{
++	if (inode && obj) {
++
++
++		/* Check mode against the variant type and attempt to repair if broken. */
++		__u32 mode = obj->yst_mode;
++		switch (obj->variant_type) {
++		case YAFFS_OBJECT_TYPE_FILE:
++			if (!S_ISREG(mode)) {
++				obj->yst_mode &= ~S_IFMT;
++				obj->yst_mode |= S_IFREG;
++			}
++
++			break;
++		case YAFFS_OBJECT_TYPE_SYMLINK:
++			if (!S_ISLNK(mode)) {
++				obj->yst_mode &= ~S_IFMT;
++				obj->yst_mode |= S_IFLNK;
++			}
++
++			break;
++		case YAFFS_OBJECT_TYPE_DIRECTORY:
++			if (!S_ISDIR(mode)) {
++				obj->yst_mode &= ~S_IFMT;
++				obj->yst_mode |= S_IFDIR;
++			}
++
++			break;
++		case YAFFS_OBJECT_TYPE_UNKNOWN:
++		case YAFFS_OBJECT_TYPE_HARDLINK:
++		case YAFFS_OBJECT_TYPE_SPECIAL:
++		default:
++			/* TODO? */
++			break;
++		}
++
++		inode->i_flags |= S_NOATIME;
++
++		inode->i_ino = obj->obj_id;
++		inode->i_mode = obj->yst_mode;
++		inode->i_uid = obj->yst_uid;
++		inode->i_gid = obj->yst_gid;
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
++		inode->i_blksize = inode->i_sb->s_blocksize;
++#endif
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++
++		inode->i_rdev = old_decode_dev(obj->yst_rdev);
++		inode->i_atime.tv_sec = (time_t) (obj->yst_atime);
++		inode->i_atime.tv_nsec = 0;
++		inode->i_mtime.tv_sec = (time_t) obj->yst_mtime;
++		inode->i_mtime.tv_nsec = 0;
++		inode->i_ctime.tv_sec = (time_t) obj->yst_ctime;
++		inode->i_ctime.tv_nsec = 0;
++#else
++		inode->i_rdev = obj->yst_rdev;
++		inode->i_atime = obj->yst_atime;
++		inode->i_mtime = obj->yst_mtime;
++		inode->i_ctime = obj->yst_ctime;
++#endif
++		inode->i_size = yaffs_get_obj_length(obj);
++		inode->i_blocks = (inode->i_size + 511) >> 9;
++
++		inode->i_nlink = yaffs_get_obj_link_count(obj);
++
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_fill_inode mode %x uid %d gid %d size %d count %d\n"),
++			inode->i_mode, inode->i_uid, inode->i_gid,
++			(int)inode->i_size, atomic_read(&inode->i_count)));
++
++		switch (obj->yst_mode & S_IFMT) {
++		default:	/* fifo, device or socket */
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++			init_special_inode(inode, obj->yst_mode,
++					old_decode_dev(obj->yst_rdev));
++#else
++			init_special_inode(inode, obj->yst_mode,
++					(dev_t) (obj->yst_rdev));
++#endif
++			break;
++		case S_IFREG:	/* file */
++			inode->i_op = &yaffs_file_inode_operations;
++			inode->i_fop = &yaffs_file_operations;
++			inode->i_mapping->a_ops =
++				&yaffs_file_address_operations;
++			break;
++		case S_IFDIR:	/* directory */
++			inode->i_op = &yaffs_dir_inode_operations;
++			inode->i_fop = &yaffs_dir_operations;
++			break;
++		case S_IFLNK:	/* symlink */
++			inode->i_op = &yaffs_symlink_inode_operations;
++			break;
++		}
++
++		yaffs_InodeToObjectLV(inode) = obj;
++
++		obj->my_inode = inode;
++
++	} else {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_FileInode invalid parameters\n")));
++	}
++
++}
++
++struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev,
++				yaffs_obj_t *obj)
++{
++	struct inode *inode;
++
++	if (!sb) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_get_inode for NULL super_block!!\n")));
++		return NULL;
++
++	}
++
++	if (!obj) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_get_inode for NULL object!!\n")));
++		return NULL;
++
++	}
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_get_inode for object %d\n"), obj->obj_id));
++
++	inode = Y_IGET(sb, obj->obj_id);
++	if (IS_ERR(inode))
++		return NULL;
++
++	/* NB Side effect: iget calls back to yaffs_read_inode(). */
++	/* iget also increments the inode's i_count */
++	/* NB You can't be holding grossLock or deadlock will happen! */
++
++	return inode;
++}
++
++static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n,
++				loff_t *pos)
++{
++	yaffs_obj_t *obj;
++	int nWritten, ipos;
++	struct inode *inode;
++	yaffs_dev_t *dev;
++
++	obj = yaffs_dentry_to_obj(f->f_dentry);
++
++	dev = obj->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	inode = f->f_dentry->d_inode;
++
++	if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND)
++		ipos = inode->i_size;
++	else
++		ipos = *pos;
++
++	if (!obj)
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_file_write: hey obj is null!\n")));
++	else
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_file_write about to write writing %u(%x) bytes"
++			"to object %d at %d(%x)\n"),
++			(unsigned) n, (unsigned) n, obj->obj_id, ipos,ipos));
++
++	nWritten = yaffs_wr_file(obj, buf, ipos, n, 0);
++
++	yaffs_touch_super(dev);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_file_write: %d(%x) bytes written\n"),
++		(unsigned )n,(unsigned)n));
++
++	if (nWritten > 0) {
++		ipos += nWritten;
++		*pos = ipos;
++		if (ipos > inode->i_size) {
++			inode->i_size = ipos;
++			inode->i_blocks = (ipos + 511) >> 9;
++
++			T(YAFFS_TRACE_OS,
++				(TSTR("yaffs_file_write size updated to %d bytes, "
++				"%d blocks\n"),
++				ipos, (int)(inode->i_blocks)));
++		}
++
++	}
++	yaffs_gross_unlock(dev);
++	return (nWritten == 0) && (n > 0) ? -ENOSPC : nWritten;
++}
++
++/* Space holding and freeing is done to ensure we have space available for write_begin/end */
++/* For now we just assume few parallel writes and check against a small number. */
++/* Todo: need to do this with a counter to handle parallel reads better */
++
++static ssize_t yaffs_hold_space(struct file *f)
++{
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev;
++
++	int n_free_chunks;
++
++
++	obj = yaffs_dentry_to_obj(f->f_dentry);
++
++	dev = obj->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	n_free_chunks = yaffs_get_n_free_chunks(dev);
++
++	yaffs_gross_unlock(dev);
++
++	return (n_free_chunks > 20) ? 1 : 0;
++}
++
++static void yaffs_release_space(struct file *f)
++{
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev;
++
++
++	obj = yaffs_dentry_to_obj(f->f_dentry);
++
++	dev = obj->my_dev;
++
++	yaffs_gross_lock(dev);
++
++
++	yaffs_gross_unlock(dev);
++}
++
++
++static loff_t yaffs_dir_llseek(struct file *file, loff_t offset, int origin)
++{
++	long long retval;
++
++	lock_kernel();
++
++	switch (origin){
++	case 2:
++		offset += i_size_read(file->f_path.dentry->d_inode);
++		break;
++	case 1:
++		offset += file->f_pos;
++	}
++	retval = -EINVAL;
++
++	if (offset >= 0){
++		if (offset != file->f_pos)
++			file->f_pos = offset;
++
++		retval = offset;
++	}
++	unlock_kernel();
++	return retval;
++}
++
++
++static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir)
++{
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev;
++        struct yaffs_SearchContext *sc;
++	struct inode *inode = f->f_dentry->d_inode;
++	unsigned long offset, curoffs;
++	yaffs_obj_t *l;
++        int retVal = 0;
++
++	char name[YAFFS_MAX_NAME_LENGTH + 1];
++
++	obj = yaffs_dentry_to_obj(f->f_dentry);
++	dev = obj->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	yaffs_dev_to_lc(dev)->readdirProcess = current;
++
++	offset = f->f_pos;
++
++        sc = yaffs_NewSearch(obj);
++        if(!sc){
++                retVal = -ENOMEM;
++                goto out;
++        }
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_readdir: starting at %d\n"), (int)offset));
++
++	if (offset == 0) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_readdir: entry . ino %d \n"),
++			(int)inode->i_ino));
++		yaffs_gross_unlock(dev);
++		if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0){
++			yaffs_gross_lock(dev);
++			goto out;
++		}
++		yaffs_gross_lock(dev);
++		offset++;
++		f->f_pos++;
++	}
++	if (offset == 1) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_readdir: entry .. ino %d \n"),
++			(int)f->f_dentry->d_parent->d_inode->i_ino));
++		yaffs_gross_unlock(dev);
++		if (filldir(dirent, "..", 2, offset,
++			f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0){
++			yaffs_gross_lock(dev);
++			goto out;
++		}
++		yaffs_gross_lock(dev);
++		offset++;
++		f->f_pos++;
++	}
++
++	curoffs = 1;
++
++	/* If the directory has changed since the open or last call to
++	   readdir, rewind to after the 2 canned entries. */
++	if (f->f_version != inode->i_version) {
++		offset = 2;
++		f->f_pos = offset;
++		f->f_version = inode->i_version;
++	}
++
++	while(sc->nextReturn){
++		curoffs++;
++                l = sc->nextReturn;
++		if (curoffs >= offset) {
++                        int this_inode = yaffs_get_obj_inode(l);
++                        int this_type = yaffs_get_obj_type(l);
++
++			yaffs_get_obj_name(l, name,
++					    YAFFS_MAX_NAME_LENGTH + 1);
++			T(YAFFS_TRACE_OS,
++			  (TSTR("yaffs_readdir: %s inode %d\n"),
++			  name, yaffs_get_obj_inode(l)));
++
++                        yaffs_gross_unlock(dev);
++
++			if (filldir(dirent,
++					name,
++					strlen(name),
++					offset,
++					this_inode,
++					this_type) < 0){
++				yaffs_gross_lock(dev);
++				goto out;
++			}
++
++                        yaffs_gross_lock(dev);
++
++			offset++;
++			f->f_pos++;
++		}
++                yaffs_search_advance(sc);
++	}
++
++out:
++	yaffs_search_end(sc);
++	yaffs_dev_to_lc(dev)->readdirProcess = NULL;
++	yaffs_gross_unlock(dev);
++
++	return retVal;
++}
++
++
++
++/*
++ * File creation. Allocate an inode, and we're done..
++ */
++
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
++#define YCRED(x) x
++#else
++#define YCRED(x) (x->cred)
++#endif
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
++			dev_t rdev)
++#else
++static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode,
++			int rdev)
++#endif
++{
++	struct inode *inode;
++
++	yaffs_obj_t *obj = NULL;
++	yaffs_dev_t *dev;
++
++	yaffs_obj_t *parent = yaffs_InodeToObject(dir);
++
++	int error = -ENOSPC;
++	uid_t uid = YCRED(current)->fsuid;
++	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
++
++	if ((dir->i_mode & S_ISGID) && S_ISDIR(mode))
++		mode |= S_ISGID;
++
++	if (parent) {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_mknod: parent object %d type %d\n"),
++			parent->obj_id, parent->variant_type));
++	} else {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_mknod: could not get parent object\n")));
++		return -EPERM;
++	}
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making oject for %s, "
++			"mode %x dev %x\n"),
++			dentry->d_name.name, mode, rdev));
++
++	dev = parent->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	switch (mode & S_IFMT) {
++	default:
++		/* Special (socket, fifo, device...) */
++		T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making special\n")));
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++		obj = yaffs_create_special(parent, dentry->d_name.name, mode, uid,
++				gid, old_encode_dev(rdev));
++#else
++		obj = yaffs_create_special(parent, dentry->d_name.name, mode, uid,
++				gid, rdev);
++#endif
++		break;
++	case S_IFREG:		/* file          */
++		T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making file\n")));
++		obj = yaffs_create_file(parent, dentry->d_name.name, mode, uid,
++				gid);
++		break;
++	case S_IFDIR:		/* directory */
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_mknod: making directory\n")));
++		obj = yaffs_create_dir(parent, dentry->d_name.name, mode,
++					uid, gid);
++		break;
++	case S_IFLNK:		/* symlink */
++		T(YAFFS_TRACE_OS, (TSTR("yaffs_mknod: making symlink\n")));
++		obj = NULL;	/* Do we ever get here? */
++		break;
++	}
++
++	/* Can not call yaffs_get_inode() with gross lock held */
++	yaffs_gross_unlock(dev);
++
++	if (obj) {
++		inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj);
++		d_instantiate(dentry, inode);
++		update_dir_time(dir);
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_mknod created object %d count = %d\n"),
++			obj->obj_id, atomic_read(&inode->i_count)));
++		error = 0;
++		yaffs_fill_inode_from_obj(dir,parent);
++	} else {
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_mknod failed making object\n")));
++		error = -ENOMEM;
++	}
++
++	return error;
++}
++
++static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
++{
++	int retVal;
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_mkdir\n")));
++	retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0);
++	return retVal;
++}
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode,
++			struct nameidata *n)
++#else
++static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode)
++#endif
++{
++	T(YAFFS_TRACE_OS,(TSTR("yaffs_create\n")));
++	return yaffs_mknod(dir, dentry, mode | S_IFREG, 0);
++}
++
++static int yaffs_unlink(struct inode *dir, struct dentry *dentry)
++{
++	int retVal;
++
++	yaffs_dev_t *dev;
++	yaffs_obj_t *obj;
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_unlink %d:%s\n"),
++		(int)(dir->i_ino),
++		dentry->d_name.name));
++	obj = yaffs_InodeToObject(dir);
++	dev = obj->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	retVal = yaffs_unlinker(obj, dentry->d_name.name);
++
++	if (retVal == YAFFS_OK) {
++		dentry->d_inode->i_nlink--;
++		dir->i_version++;
++		yaffs_gross_unlock(dev);
++		mark_inode_dirty(dentry->d_inode);
++		update_dir_time(dir);
++		return 0;
++	}
++	yaffs_gross_unlock(dev);
++	return -ENOTEMPTY;
++}
++
++/*
++ * Create a link...
++ */
++static int yaffs_link(struct dentry *old_dentry, struct inode *dir,
++			struct dentry *dentry)
++{
++	struct inode *inode = old_dentry->d_inode;
++	yaffs_obj_t *obj = NULL;
++	yaffs_obj_t *link = NULL;
++	yaffs_dev_t *dev;
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_link\n")));
++
++	obj = yaffs_InodeToObject(inode);
++	dev = obj->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	if (!S_ISDIR(inode->i_mode))		/* Don't link directories */
++		link = yaffs_link_obj(yaffs_InodeToObject(dir), dentry->d_name.name,
++			obj);
++
++	if (link) {
++		old_dentry->d_inode->i_nlink = yaffs_get_obj_link_count(obj);
++		d_instantiate(dentry, old_dentry->d_inode);
++		atomic_inc(&old_dentry->d_inode->i_count);
++		T(YAFFS_TRACE_OS,
++			(TSTR("yaffs_link link count %d i_count %d\n"),
++			old_dentry->d_inode->i_nlink,
++			atomic_read(&old_dentry->d_inode->i_count)));
++	}
++
++	yaffs_gross_unlock(dev);
++
++	if (link){
++		update_dir_time(dir);
++		return 0;
++	}
++
++	return -EPERM;
++}
++
++static int yaffs_symlink(struct inode *dir, struct dentry *dentry,
++				const char *symname)
++{
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev;
++	uid_t uid = YCRED(current)->fsuid;
++	gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid;
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_symlink\n")));
++
++	dev = yaffs_InodeToObject(dir)->my_dev;
++	yaffs_gross_lock(dev);
++	obj = yaffs_create_symlink(yaffs_InodeToObject(dir), dentry->d_name.name,
++				S_IFLNK | S_IRWXUGO, uid, gid, symname);
++	yaffs_gross_unlock(dev);
++
++	if (obj) {
++		struct inode *inode;
++
++		inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj);
++		d_instantiate(dentry, inode);
++		update_dir_time(dir);
++		T(YAFFS_TRACE_OS, (TSTR("symlink created OK\n")));
++		return 0;
++	} else {
++		T(YAFFS_TRACE_OS, (TSTR("symlink not created\n")));
++	}
++
++	return -ENOMEM;
++}
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
++static int yaffs_sync_object(struct file *file, int datasync)
++#else
++static int yaffs_sync_object(struct file *file, struct dentry *dentry,
++				int datasync)
++#endif
++{
++
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev;
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 34))
++	struct dentry *dentry = file->f_path.dentry;
++#endif
++
++	obj = yaffs_dentry_to_obj(dentry);
++
++	dev = obj->my_dev;
++
++	T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC,
++		(TSTR("yaffs_sync_object\n")));
++	yaffs_gross_lock(dev);
++	yaffs_flush_file(obj, 1, datasync);
++	yaffs_gross_unlock(dev);
++	return 0;
++}
++
++/*
++ * The VFS layer already does all the dentry stuff for rename.
++ *
++ * NB: POSIX says you can rename an object over an old object of the same name
++ */
++static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry,
++			struct inode *new_dir, struct dentry *new_dentry)
++{
++	yaffs_dev_t *dev;
++	int retVal = YAFFS_FAIL;
++	yaffs_obj_t *target;
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_rename\n")));
++	dev = yaffs_InodeToObject(old_dir)->my_dev;
++
++	yaffs_gross_lock(dev);
++
++	/* Check if the target is an existing directory that is not empty. */
++	target = yaffs_find_by_name(yaffs_InodeToObject(new_dir),
++				new_dentry->d_name.name);
++
++
++
++	if (target && target->variant_type == YAFFS_OBJECT_TYPE_DIRECTORY &&
++		!ylist_empty(&target->variant.dir_variant.children)) {
++
++		T(YAFFS_TRACE_OS, (TSTR("target is non-empty dir\n")));
++
++		retVal = YAFFS_FAIL;
++	} else {
++		/* Now does unlinking internally using shadowing mechanism */
++		T(YAFFS_TRACE_OS, (TSTR("calling yaffs_rename_obj\n")));
++
++		retVal = yaffs_rename_obj(yaffs_InodeToObject(old_dir),
++				old_dentry->d_name.name,
++				yaffs_InodeToObject(new_dir),
++				new_dentry->d_name.name);
++	}
++	yaffs_gross_unlock(dev);
++
++	if (retVal == YAFFS_OK) {
++		if (target) {
++			new_dentry->d_inode->i_nlink--;
++			mark_inode_dirty(new_dentry->d_inode);
++		}
++		
++		update_dir_time(old_dir);
++		if(old_dir != new_dir)
++			update_dir_time(new_dir);
++		return 0;
++	} else {
++		return -ENOTEMPTY;
++	}
++}
++
++static int yaffs_setattr(struct dentry *dentry, struct iattr *attr)
++{
++	struct inode *inode = dentry->d_inode;
++	int error = 0;
++	yaffs_dev_t *dev;
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_setattr of object %d\n"),
++		yaffs_InodeToObject(inode)->obj_id));
++
++	/* Fail if a requested resize >= 2GB */		
++	if (attr->ia_valid & ATTR_SIZE &&
++		(attr->ia_size >> 31))
++		error = -EINVAL;
++
++	if (error == 0)
++		error = inode_change_ok(inode, attr);
++	if (error == 0) {
++		int result;
++		if (!error){
++			error = yaffs_vfs_setattr(inode, attr);
++			T(YAFFS_TRACE_OS,(TSTR("inode_setattr called\n")));
++			if (attr->ia_valid & ATTR_SIZE){
++                        	yaffs_vfs_setsize(inode,attr->ia_size);
++                        	inode->i_blocks = (inode->i_size + 511) >> 9;
++			}
++		}
++		dev = yaffs_InodeToObject(inode)->my_dev;
++		if (attr->ia_valid & ATTR_SIZE){
++			T(YAFFS_TRACE_OS,(TSTR("resize to %d(%x)\n"),
++				(int)(attr->ia_size),(int)(attr->ia_size)));
++		}
++		yaffs_gross_lock(dev);
++		result = yaffs_set_attribs(yaffs_InodeToObject(inode), attr);
++		if(result == YAFFS_OK) {
++			error = 0;
++		} else {
++			error = -EPERM;
++		}
++		yaffs_gross_unlock(dev);
++
++	}
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_setattr done returning %d\n"),error));
++
++	return error;
++}
++
++#ifdef CONFIG_YAFFS_XATTR
++int yaffs_setxattr(struct dentry *dentry, const char *name,
++			const void *value, size_t size, int flags)
++{
++	struct inode *inode = dentry->d_inode;
++	int error = 0;
++	yaffs_dev_t *dev;
++	yaffs_obj_t *obj = yaffs_InodeToObject(inode);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_setxattr of object %d\n"),
++		obj->obj_id));
++
++
++	if (error == 0) {
++		int result;
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		result = yaffs_set_xattrib(obj, name, value, size, flags);
++		if(result == YAFFS_OK)
++			error = 0;
++		else if(result < 0)
++			error = result;
++		yaffs_gross_unlock(dev);
++
++	}
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_setxattr done returning %d\n"),error));
++
++	return error;
++}
++
++
++ssize_t yaffs_getxattr(struct dentry *dentry, const char *name, void *buff,
++			size_t size)
++{
++	struct inode *inode = dentry->d_inode;
++	int error = 0;
++	yaffs_dev_t *dev;
++	yaffs_obj_t *obj = yaffs_InodeToObject(inode);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_getxattr \"%s\" from object %d\n"),
++		name, obj->obj_id));
++
++	if (error == 0) {
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		error = yaffs_get_xattrib(obj, name, buff, size);
++		yaffs_gross_unlock(dev);
++
++	}
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_getxattr done returning %d\n"),error));
++
++	return error;
++}
++
++int yaffs_removexattr(struct dentry *dentry, const char *name)
++{
++	struct inode *inode = dentry->d_inode;
++	int error = 0;
++	yaffs_dev_t *dev;
++	yaffs_obj_t *obj = yaffs_InodeToObject(inode);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_removexattr of object %d\n"),
++		obj->obj_id));
++
++
++	if (error == 0) {
++		int result;
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		result = yaffs_remove_xattrib(obj, name);
++		if(result == YAFFS_OK)
++			error = 0;
++		else if(result < 0)
++			error = result;
++		yaffs_gross_unlock(dev);
++
++	}
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_removexattr done returning %d\n"),error));
++
++	return error;
++}
++
++ssize_t yaffs_listxattr(struct dentry *dentry, char *buff, size_t size)
++{
++	struct inode *inode = dentry->d_inode;
++	int error = 0;
++	yaffs_dev_t *dev;
++	yaffs_obj_t *obj = yaffs_InodeToObject(inode);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_listxattr of object %d\n"),
++		obj->obj_id));
++
++
++	if (error == 0) {
++		dev = obj->my_dev;
++		yaffs_gross_lock(dev);
++		error = yaffs_list_xattrib(obj, buff, size);
++		yaffs_gross_unlock(dev);
++
++	}
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_listxattr done returning %d\n"),error));
++
++	return error;
++}
++
++#endif
++
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf)
++{
++	yaffs_dev_t *dev = yaffs_dentry_to_obj(dentry)->my_dev;
++	struct super_block *sb = dentry->d_sb;
++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf)
++{
++	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
++#else
++static int yaffs_statfs(struct super_block *sb, struct statfs *buf)
++{
++	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
++#endif
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_statfs\n")));
++
++	yaffs_gross_lock(dev);
++
++	buf->f_type = YAFFS_MAGIC;
++	buf->f_bsize = sb->s_blocksize;
++	buf->f_namelen = 255;
++
++	if (dev->data_bytes_per_chunk & (dev->data_bytes_per_chunk - 1)) {
++		/* Do this if chunk size is not a power of 2 */
++
++		uint64_t bytesInDev;
++		uint64_t bytesFree;
++
++		bytesInDev = ((uint64_t)((dev->param.end_block - dev->param.start_block + 1))) *
++			((uint64_t)(dev->param.chunks_per_block * dev->data_bytes_per_chunk));
++
++		do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */
++		buf->f_blocks = bytesInDev;
++
++		bytesFree  = ((uint64_t)(yaffs_get_n_free_chunks(dev))) *
++			((uint64_t)(dev->data_bytes_per_chunk));
++
++		do_div(bytesFree, sb->s_blocksize);
++
++		buf->f_bfree = bytesFree;
++
++	} else if (sb->s_blocksize > dev->data_bytes_per_chunk) {
++
++		buf->f_blocks =
++			(dev->param.end_block - dev->param.start_block + 1) *
++			dev->param.chunks_per_block /
++			(sb->s_blocksize / dev->data_bytes_per_chunk);
++		buf->f_bfree =
++			yaffs_get_n_free_chunks(dev) /
++			(sb->s_blocksize / dev->data_bytes_per_chunk);
++	} else {
++		buf->f_blocks =
++			(dev->param.end_block - dev->param.start_block + 1) *
++			dev->param.chunks_per_block *
++			(dev->data_bytes_per_chunk / sb->s_blocksize);
++
++		buf->f_bfree =
++			yaffs_get_n_free_chunks(dev) *
++			(dev->data_bytes_per_chunk / sb->s_blocksize);
++	}
++
++	buf->f_files = 0;
++	buf->f_ffree = 0;
++	buf->f_bavail = buf->f_bfree;
++
++	yaffs_gross_unlock(dev);
++	return 0;
++}
++
++
++
++static void yaffs_flush_inodes(struct super_block *sb)
++{
++	struct inode *iptr;
++	yaffs_obj_t *obj;
++	
++	list_for_each_entry(iptr,&sb->s_inodes, i_sb_list){
++		obj = yaffs_InodeToObject(iptr);
++		if(obj){
++			T(YAFFS_TRACE_OS, (TSTR("flushing obj %d\n"),
++				obj->obj_id));
++			yaffs_flush_file(obj,1,0);
++		}
++	}
++}
++
++
++static void yaffs_flush_super(struct super_block *sb, int do_checkpoint)
++{
++	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);	
++	if(!dev)
++		return;
++	
++	yaffs_flush_inodes(sb);
++	yaffs_update_dirty_dirs(dev);
++	yaffs_flush_whole_cache(dev);
++	if(do_checkpoint)
++		yaffs_checkpoint_save(dev);
++}
++
++
++static unsigned yaffs_bg_gc_urgency(yaffs_dev_t *dev)
++{
++	unsigned erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
++	struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev);
++	unsigned scatteredFree = 0; /* Free chunks not in an erased block */
++
++	if(erasedChunks < dev->n_free_chunks)
++		scatteredFree = (dev->n_free_chunks - erasedChunks);
++
++	if(!context->bgRunning)
++		return 0;
++	else if(scatteredFree < (dev->param.chunks_per_block * 2))
++		return 0;
++	else if(erasedChunks > dev->n_free_chunks/2)
++		return 0;
++	else if(erasedChunks > dev->n_free_chunks/4)
++		return 1;
++	else
++		return 2;
++}
++
++static int yaffs_do_sync_fs(struct super_block *sb,
++				int request_checkpoint)
++{
++
++	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
++	unsigned int oneshot_checkpoint = (yaffs_auto_checkpoint & 4);
++	unsigned gc_urgent = yaffs_bg_gc_urgency(dev);
++	int do_checkpoint;
++
++	T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND,
++		(TSTR("yaffs_do_sync_fs: gc-urgency %d %s %s%s\n"),
++		gc_urgent,
++		sb->s_dirt ? "dirty" : "clean",
++		request_checkpoint ? "checkpoint requested" : "no checkpoint",
++		oneshot_checkpoint ? " one-shot" : "" ));
++
++	yaffs_gross_lock(dev);
++	do_checkpoint = ((request_checkpoint && !gc_urgent) ||
++			oneshot_checkpoint) &&
++			!dev->is_checkpointed;
++
++	if (sb->s_dirt || do_checkpoint) {
++		yaffs_flush_super(sb, !dev->is_checkpointed && do_checkpoint);
++		sb->s_dirt = 0;
++		if(oneshot_checkpoint)
++			yaffs_auto_checkpoint &= ~4;
++	}
++	yaffs_gross_unlock(dev);
++
++	return 0;
++}
++
++/*
++ * yaffs background thread functions .
++ * yaffs_bg_thread_fn() the thread function
++ * yaffs_bg_start() launches the background thread.
++ * yaffs_bg_stop() cleans up the background thread.
++ *
++ * NB: 
++ * The thread should only run after the yaffs is initialised
++ * The thread should be stopped before yaffs is unmounted.
++ * The thread should not do any writing while the fs is in read only.
++ */
++
++#ifdef YAFFS_COMPILE_BACKGROUND
++
++void yaffs_background_waker(unsigned long data)
++{
++	wake_up_process((struct task_struct *)data);
++}
++
++static int yaffs_bg_thread_fn(void *data)
++{
++	yaffs_dev_t *dev = (yaffs_dev_t *)data;
++	struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev);
++	unsigned long now = jiffies;
++	unsigned long next_dir_update = now;
++	unsigned long next_gc = now;
++	unsigned long expires;
++	unsigned int urgency;
++
++	int gcResult;
++	struct timer_list timer;
++
++	T(YAFFS_TRACE_BACKGROUND,
++		(TSTR("yaffs_background starting for dev %p\n"),
++		(void *)dev));
++
++#ifdef YAFFS_COMPILE_FREEZER
++	set_freezable();
++#endif
++	while(context->bgRunning){
++		T(YAFFS_TRACE_BACKGROUND,
++			(TSTR("yaffs_background\n")));
++
++		if(kthread_should_stop())
++			break;
++
++#ifdef YAFFS_COMPILE_FREEZER
++		if(try_to_freeze())
++			continue;
++#endif
++		yaffs_gross_lock(dev);
++
++		now = jiffies;
++
++		if(time_after(now, next_dir_update) && yaffs_bg_enable){
++			yaffs_update_dirty_dirs(dev);
++			next_dir_update = now + HZ;
++		}
++
++		if(time_after(now,next_gc) && yaffs_bg_enable){
++			if(!dev->is_checkpointed){
++				urgency = yaffs_bg_gc_urgency(dev);
++				gcResult = yaffs_bg_gc(dev, urgency);
++				if(urgency > 1)
++					next_gc = now + HZ/20+1;
++				else if(urgency > 0)
++					next_gc = now + HZ/10+1;
++				else
++					next_gc = now + HZ * 2;
++			} else /*
++				* gc not running so set to next_dir_update
++				* to cut down on wake ups
++				*/
++				next_gc = next_dir_update;
++		}
++		yaffs_gross_unlock(dev);
++#if 1
++		expires = next_dir_update;
++		if (time_before(next_gc,expires))
++			expires = next_gc;
++		if(time_before(expires,now))
++			expires = now + HZ;
++
++		Y_INIT_TIMER(&timer);
++		timer.expires = expires+1;
++		timer.data = (unsigned long) current;
++		timer.function = yaffs_background_waker;
++
++                set_current_state(TASK_INTERRUPTIBLE);
++		add_timer(&timer);
++		schedule();
++		del_timer_sync(&timer);
++#else
++		msleep(10);
++#endif
++	}
++
++	return 0;
++}
++
++static int yaffs_bg_start(yaffs_dev_t *dev)
++{
++	int retval = 0;
++	struct yaffs_LinuxContext *context = yaffs_dev_to_lc(dev);
++
++	if(dev->read_only)
++		return -1;
++
++	context->bgRunning = 1;
++
++	context->bgThread = kthread_run(yaffs_bg_thread_fn,
++	                        (void *)dev,"yaffs-bg-%d",context->mount_id);
++
++	if(IS_ERR(context->bgThread)){
++		retval = PTR_ERR(context->bgThread);
++		context->bgThread = NULL;
++		context->bgRunning = 0;
++	}
++	return retval;
++}
++
++static void yaffs_bg_stop(yaffs_dev_t *dev)
++{
++	struct yaffs_LinuxContext *ctxt = yaffs_dev_to_lc(dev);
++
++	ctxt->bgRunning = 0;
++
++	if( ctxt->bgThread){
++		kthread_stop(ctxt->bgThread);
++		ctxt->bgThread = NULL;
++	}
++}
++#else
++static int yaffs_bg_thread_fn(void *data)
++{
++	return 0;
++}
++
++static int yaffs_bg_start(yaffs_dev_t *dev)
++{
++	return 0;
++}
++
++static void yaffs_bg_stop(yaffs_dev_t *dev)
++{
++}
++#endif
++
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static void yaffs_write_super(struct super_block *sb)
++#else
++static int yaffs_write_super(struct super_block *sb)
++#endif
++{
++	unsigned request_checkpoint = (yaffs_auto_checkpoint >= 2);
++
++	T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC | YAFFS_TRACE_BACKGROUND,
++		(TSTR("yaffs_write_super%s\n"),
++		request_checkpoint ? " checkpt" : ""));
++
++	yaffs_do_sync_fs(sb, request_checkpoint);
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18))
++	return 0;
++#endif
++}
++
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs_sync_fs(struct super_block *sb, int wait)
++#else
++static int yaffs_sync_fs(struct super_block *sb)
++#endif
++{
++	unsigned request_checkpoint = (yaffs_auto_checkpoint >= 1);
++
++	T(YAFFS_TRACE_OS | YAFFS_TRACE_SYNC,
++		(TSTR("yaffs_sync_fs%s\n"),
++		request_checkpoint ? " checkpt" : ""));
++
++	yaffs_do_sync_fs(sb, request_checkpoint);
++
++	return 0;
++}
++
++#ifdef YAFFS_USE_OWN_IGET
++
++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino)
++{
++	struct inode *inode;
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_iget for %lu\n"), ino));
++
++	inode = iget_locked(sb, ino);
++	if (!inode)
++		return ERR_PTR(-ENOMEM);
++	if (!(inode->i_state & I_NEW))
++		return inode;
++
++	/* NB This is called as a side effect of other functions, but
++	 * we had to release the lock to prevent deadlocks, so
++	 * need to lock again.
++	 */
++
++	yaffs_gross_lock(dev);
++
++	obj = yaffs_find_by_number(dev, inode->i_ino);
++
++	yaffs_fill_inode_from_obj(inode, obj);
++
++	yaffs_gross_unlock(dev);
++
++	unlock_new_inode(inode);
++	return inode;
++}
++
++#else
++
++static void yaffs_read_inode(struct inode *inode)
++{
++	/* NB This is called as a side effect of other functions, but
++	 * we had to release the lock to prevent deadlocks, so
++	 * need to lock again.
++	 */
++
++	yaffs_obj_t *obj;
++	yaffs_dev_t *dev = yaffs_SuperToDevice(inode->i_sb);
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_read_inode for %d\n"), (int)inode->i_ino));
++
++	if(current != yaffs_dev_to_lc(dev)->readdirProcess)
++		yaffs_gross_lock(dev);
++
++	obj = yaffs_find_by_number(dev, inode->i_ino);
++
++	yaffs_fill_inode_from_obj(inode, obj);
++
++	if(current != yaffs_dev_to_lc(dev)->readdirProcess)
++		yaffs_gross_unlock(dev);
++}
++
++#endif
++
++static YLIST_HEAD(yaffs_context_list);
++struct semaphore yaffs_context_lock;
++
++static void yaffs_put_super(struct super_block *sb)
++{
++	yaffs_dev_t *dev = yaffs_SuperToDevice(sb);
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_put_super\n")));
++
++	T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND,
++		(TSTR("Shutting down yaffs background thread\n")));
++	yaffs_bg_stop(dev);
++	T(YAFFS_TRACE_OS | YAFFS_TRACE_BACKGROUND,
++		(TSTR("yaffs background thread shut down\n")));
++
++	yaffs_gross_lock(dev);
++
++	yaffs_flush_super(sb,1);
++
++	if (yaffs_dev_to_lc(dev)->putSuperFunc)
++		yaffs_dev_to_lc(dev)->putSuperFunc(sb);
++
++
++	yaffs_deinitialise(dev);
++
++	yaffs_gross_unlock(dev);
++
++	down(&yaffs_context_lock);
++	ylist_del_init(&(yaffs_dev_to_lc(dev)->contextList));
++	up(&yaffs_context_lock);
++
++	if (yaffs_dev_to_lc(dev)->spareBuffer) {
++		YFREE(yaffs_dev_to_lc(dev)->spareBuffer);
++		yaffs_dev_to_lc(dev)->spareBuffer = NULL;
++	}
++
++	kfree(dev);
++}
++
++
++static void yaffs_MTDPutSuper(struct super_block *sb)
++{
++	struct mtd_info *mtd = yaffs_dev_to_mtd(yaffs_SuperToDevice(sb));
++
++	if (mtd->sync)
++		mtd->sync(mtd);
++
++	put_mtd_device(mtd);
++}
++
++
++static void yaffs_touch_super(yaffs_dev_t *dev)
++{
++	struct super_block *sb = yaffs_dev_to_lc(dev)->superBlock;
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_touch_super() sb = %p\n"), sb));
++	if (sb)
++		sb->s_dirt = 1;
++}
++
++typedef struct {
++	int inband_tags;
++	int skip_checkpoint_read;
++	int skip_checkpoint_write;
++	int no_cache;
++	int tags_ecc_on;
++	int tags_ecc_overridden;
++	int lazy_loading_enabled;
++	int lazy_loading_overridden;
++	int empty_lost_and_found;
++	int empty_lost_and_found_overridden;
++} yaffs_options;
++
++#define MAX_OPT_LEN 30
++static int yaffs_parse_options(yaffs_options *options, const char *options_str)
++{
++	char cur_opt[MAX_OPT_LEN + 1];
++	int p;
++	int error = 0;
++
++	/* Parse through the options which is a comma seperated list */
++
++	while (options_str && *options_str && !error) {
++		memset(cur_opt, 0, MAX_OPT_LEN + 1);
++		p = 0;
++
++		while(*options_str == ',')
++			options_str++;
++
++		while (*options_str && *options_str != ',') {
++			if (p < MAX_OPT_LEN) {
++				cur_opt[p] = *options_str;
++				p++;
++			}
++			options_str++;
++		}
++
++		if (!strcmp(cur_opt, "inband-tags"))
++			options->inband_tags = 1;
++		else if (!strcmp(cur_opt, "tags-ecc-off")){
++			options->tags_ecc_on = 0;
++			options->tags_ecc_overridden=1;
++		} else if (!strcmp(cur_opt, "tags-ecc-on")){
++			options->tags_ecc_on = 1;
++			options->tags_ecc_overridden = 1;
++		} else if (!strcmp(cur_opt, "lazy-loading-off")){
++			options->lazy_loading_enabled = 0;
++			options->lazy_loading_overridden=1;
++		} else if (!strcmp(cur_opt, "lazy-loading-on")){
++			options->lazy_loading_enabled = 1;
++			options->lazy_loading_overridden = 1;
++		} else if (!strcmp(cur_opt, "empty-lost-and-found-off")){
++			options->empty_lost_and_found = 0;
++			options->empty_lost_and_found_overridden=1;
++		} else if (!strcmp(cur_opt, "empty-lost-and-found-on")){
++			options->empty_lost_and_found = 1;
++			options->empty_lost_and_found_overridden=1;
++		} else if (!strcmp(cur_opt, "no-cache"))
++			options->no_cache = 1;
++		else if (!strcmp(cur_opt, "no-checkpoint-read"))
++			options->skip_checkpoint_read = 1;
++		else if (!strcmp(cur_opt, "no-checkpoint-write"))
++			options->skip_checkpoint_write = 1;
++		else if (!strcmp(cur_opt, "no-checkpoint")) {
++			options->skip_checkpoint_read = 1;
++			options->skip_checkpoint_write = 1;
++		} else {
++			printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",
++					cur_opt);
++			error = 1;
++		}
++	}
++
++	return error;
++}
++
++static struct super_block *yaffs_internal_read_super(int yaffs_version,
++						struct super_block *sb,
++						void *data, int silent)
++{
++	int nBlocks;
++	struct inode *inode = NULL;
++	struct dentry *root;
++	yaffs_dev_t *dev = 0;
++	char devname_buf[BDEVNAME_SIZE + 1];
++	struct mtd_info *mtd;
++	int err;
++	char *data_str = (char *)data;
++	struct yaffs_LinuxContext *context = NULL;
++	yaffs_param_t *param;
++
++	int read_only = 0;
++
++	yaffs_options options;
++
++	unsigned mount_id;
++	int found;
++	struct yaffs_LinuxContext *context_iterator;
++	struct ylist_head *l;
++
++	sb->s_magic = YAFFS_MAGIC;
++	sb->s_op = &yaffs_super_ops;
++	sb->s_flags |= MS_NOATIME;
++
++	read_only =((sb->s_flags & MS_RDONLY) != 0);
++
++
++#ifdef YAFFS_COMPILE_EXPORTFS
++	sb->s_export_op = &yaffs_export_ops;
++#endif
++
++	if (!sb)
++		printk(KERN_INFO "yaffs: sb is NULL\n");
++	else if (!sb->s_dev)
++		printk(KERN_INFO "yaffs: sb->s_dev is NULL\n");
++	else if (!yaffs_devname(sb, devname_buf))
++		printk(KERN_INFO "yaffs: devname is NULL\n");
++	else
++		printk(KERN_INFO "yaffs: dev is %d name is \"%s\" %s\n",
++		       sb->s_dev,
++		       yaffs_devname(sb, devname_buf),
++		       read_only ? "ro" : "rw");
++
++	if (!data_str)
++		data_str = "";
++
++	printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str);
++
++	memset(&options, 0, sizeof(options));
++
++	if (yaffs_parse_options(&options, data_str)) {
++		/* Option parsing failed */
++		return NULL;
++	}
++
++
++	sb->s_blocksize = PAGE_CACHE_SIZE;
++	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
++
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_read_super: Using yaffs%d\n"), yaffs_version));
++	T(YAFFS_TRACE_OS,
++		(TSTR("yaffs_read_super: block size %d\n"),
++		(int)(sb->s_blocksize)));
++
++	T(YAFFS_TRACE_ALWAYS,
++		(TSTR("yaffs: Attempting MTD mount of %u.%u,\"%s\"\n"),
++	       MAJOR(sb->s_dev), MINOR(sb->s_dev),
++	       yaffs_devname(sb, devname_buf)));
++
++	/* Check it's an mtd device..... */
++	if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR)
++		return NULL;	/* This isn't an mtd device */
++
++	/* Get the device */
++	mtd = get_mtd_device(NULL, MINOR(sb->s_dev));
++	if (!mtd) {
++		T(YAFFS_TRACE_ALWAYS,
++			(TSTR("yaffs: MTD device #%u doesn't appear to exist\n"),
++			MINOR(sb->s_dev)));
++		return NULL;
++	}
++	/* Check it's NAND */
++	if (mtd->type != MTD_NANDFLASH) {
++		T(YAFFS_TRACE_ALWAYS,
++			(TSTR("yaffs: MTD device is not NAND it's type %d\n"),
++			mtd->type));
++		return NULL;
++	}
++
++	T(YAFFS_TRACE_OS, (TSTR(" erase %p\n"), mtd->erase));
++	T(YAFFS_TRACE_OS, (TSTR(" read %p\n"), mtd->read));
++	T(YAFFS_TRACE_OS, (TSTR(" write %p\n"), mtd->write));
++	T(YAFFS_TRACE_OS, (TSTR(" readoob %p\n"), mtd->read_oob));
++	T(YAFFS_TRACE_OS, (TSTR(" writeoob %p\n"), mtd->write_oob));
++	T(YAFFS_TRACE_OS, (TSTR(" block_isbad %p\n"), mtd->block_isbad));
++	T(YAFFS_TRACE_OS, (TSTR(" block_markbad %p\n"), mtd->block_markbad));
++	T(YAFFS_TRACE_OS, (TSTR(" %s %d\n"), WRITE_SIZE_STR, WRITE_SIZE(mtd)));
++	T(YAFFS_TRACE_OS, (TSTR(" oobsize %d\n"), mtd->oobsize));
++	T(YAFFS_TRACE_OS, (TSTR(" erasesize %d\n"), mtd->erasesize));
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29)
++	T(YAFFS_TRACE_OS, (TSTR(" size %u\n"), mtd->size));
++#else
++	T(YAFFS_TRACE_OS, (TSTR(" size %lld\n"), mtd->size));
++#endif
++
++#ifdef CONFIG_YAFFS_AUTO_YAFFS2
++
++	if (yaffs_version == 1 && WRITE_SIZE(mtd) >= 2048) {
++		T(YAFFS_TRACE_ALWAYS,
++			(TSTR("yaffs: auto selecting yaffs2\n")));
++		yaffs_version = 2;
++	}
++
++	/* Added NCB 26/5/2006 for completeness */
++	if (yaffs_version == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) {
++		T(YAFFS_TRACE_ALWAYS,
++			(TSTR("yaffs: auto selecting yaffs1\n")));
++		yaffs_version = 1;
++	}
++
++#endif
++
++	if (yaffs_version == 2) {
++		/* Check for version 2 style functions */
++		if (!mtd->erase ||
++		    !mtd->block_isbad ||
++		    !mtd->block_markbad ||
++		    !mtd->read ||
++		    !mtd->write ||
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++		    !mtd->read_oob || !mtd->write_oob) {
++#else
++		    !mtd->write_ecc ||
++		    !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
++#endif
++			T(YAFFS_TRACE_ALWAYS,
++			  (TSTR("yaffs: MTD device does not support required "
++			   "functions\n")));
++			return NULL;
++		}
++
++		if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE ||
++		    mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) &&
++		    !options.inband_tags) {
++			T(YAFFS_TRACE_ALWAYS,
++			  (TSTR("yaffs: MTD device does not have the "
++			   "right page sizes\n")));
++			return NULL;
++		}
++	} else {
++		/* Check for V1 style functions */
++		if (!mtd->erase ||
++		    !mtd->read ||
++		    !mtd->write ||
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++		    !mtd->read_oob || !mtd->write_oob) {
++#else
++		    !mtd->write_ecc ||
++		    !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) {
++#endif
++			T(YAFFS_TRACE_ALWAYS,
++			  (TSTR("yaffs: MTD device does not support required "
++			   "functions\n")));
++			return NULL;
++		}
++
++		if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK ||
++		    mtd->oobsize != YAFFS_BYTES_PER_SPARE) {
++			T(YAFFS_TRACE_ALWAYS,
++			  (TSTR("yaffs: MTD device does not support have the "
++			   "right page sizes\n")));
++			return NULL;
++		}
++	}
++
++	/* OK, so if we got here, we have an MTD that's NAND and looks
++	 * like it has the right capabilities
++	 * Set the yaffs_dev_t up for mtd
++	 */
++
++	if (!read_only && !(mtd->flags & MTD_WRITEABLE)){
++		read_only = 1;
++		printk(KERN_INFO "yaffs: mtd is read only, setting superblock read only");
++		sb->s_flags |= MS_RDONLY;
++	}
++
++	dev = kmalloc(sizeof(yaffs_dev_t), GFP_KERNEL);
++	context = kmalloc(sizeof(struct yaffs_LinuxContext),GFP_KERNEL);
++	
++	if(!dev || !context ){
++		if(dev)
++			kfree(dev);
++		if(context)
++			kfree(context);
++		dev = NULL;
++		context = NULL;
++	}
++
++	if (!dev) {
++		/* Deep shit could not allocate device structure */
++		T(YAFFS_TRACE_ALWAYS,
++		  (TSTR("yaffs_read_super: Failed trying to allocate "
++		   "yaffs_dev_t. \n")));
++		return NULL;
++	}
++	memset(dev, 0, sizeof(yaffs_dev_t));
++	param = &(dev->param);
++
++	memset(context,0,sizeof(struct yaffs_LinuxContext));
++	dev->os_context = context;
++	YINIT_LIST_HEAD(&(context->contextList));
++	context->dev = dev;
++	context->superBlock = sb;
++
++	dev->read_only = read_only;
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++	sb->s_fs_info = dev;
++#else
++	sb->u.generic_sbp = dev;
++#endif
++	
++	dev->driver_context = mtd;
++	param->name = mtd->name;
++
++	/* Set up the memory size parameters.... */
++
++	nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK));
++
++	param->start_block = 0;
++	param->end_block = nBlocks - 1;
++	param->chunks_per_block = YAFFS_CHUNKS_PER_BLOCK;
++	param->total_bytes_per_chunk = YAFFS_BYTES_PER_CHUNK;
++	param->n_reserved_blocks = 5;
++	param->n_caches = (options.no_cache) ? 0 : 10;
++	param->inband_tags = options.inband_tags;
++
++#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
++	param->disable_lazy_load = 1;
++#endif
++#ifdef CONFIG_YAFFS_XATTR
++	param->enable_xattr = 1;
++#endif
++	if(options.lazy_loading_overridden)
++		param->disable_lazy_load = !options.lazy_loading_enabled;
++
++#ifdef CONFIG_YAFFS_DISABLE_TAGS_ECC
++	param->no_tags_ecc = 1;
++#endif
++
++#ifdef CONFIG_YAFFS_DISABLE_BACKGROUND
++#else
++	param->defered_dir_update = 1;
++#endif
++
++	if(options.tags_ecc_overridden)
++		param->no_tags_ecc = !options.tags_ecc_on;
++
++#ifdef CONFIG_YAFFS_EMPTY_LOST_AND_FOUND
++	param->empty_lost_n_found = 1;
++#endif
++
++#ifdef CONFIG_YAFFS_DISABLE_BLOCK_REFRESHING
++	param->refresh_period = 0;
++#else
++	param->refresh_period = 500;
++#endif
++
++#ifdef CONFIG_YAFFS__ALWAYS_CHECK_CHUNK_ERASED
++	param->always_check_erased = 1;
++#endif
++
++	if(options.empty_lost_and_found_overridden)
++		param->empty_lost_n_found = options.empty_lost_and_found;
++
++	/* ... and the functions. */
++	if (yaffs_version == 2) {
++		param->write_chunk_tags_fn =
++		    nandmtd2_WriteChunkWithTagsToNAND;
++		param->read_chunk_tags_fn =
++		    nandmtd2_ReadChunkWithTagsFromNAND;
++		param->bad_block_fn = nandmtd2_MarkNANDBlockBad;
++		param->query_block_fn = nandmtd2_QueryNANDBlock;
++		yaffs_dev_to_lc(dev)->spareBuffer = YMALLOC(mtd->oobsize);
++		param->is_yaffs2 = 1;
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++		param->total_bytes_per_chunk = mtd->writesize;
++		param->chunks_per_block = mtd->erasesize / mtd->writesize;
++#else
++		param->total_bytes_per_chunk = mtd->oobblock;
++		param->chunks_per_block = mtd->erasesize / mtd->oobblock;
++#endif
++		nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize);
++
++		param->start_block = 0;
++		param->end_block = nBlocks - 1;
++	} else {
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++		/* use the MTD interface in yaffs_mtdif1.c */
++		param->write_chunk_tags_fn =
++			nandmtd1_WriteChunkWithTagsToNAND;
++		param->read_chunk_tags_fn =
++			nandmtd1_ReadChunkWithTagsFromNAND;
++		param->bad_block_fn = nandmtd1_MarkNANDBlockBad;
++		param->query_block_fn = nandmtd1_QueryNANDBlock;
++#else
++		param->write_chunk_fn = nandmtd_WriteChunkToNAND;
++		param->read_chunk_fn = nandmtd_ReadChunkFromNAND;
++#endif
++		param->is_yaffs2 = 0;
++	}
++	/* ... and common functions */
++	param->erase_fn = nandmtd_EraseBlockInNAND;
++	param->initialise_flash_fn = nandmtd_InitialiseNAND;
++
++	yaffs_dev_to_lc(dev)->putSuperFunc = yaffs_MTDPutSuper;
++
++	param->sb_dirty_fn = yaffs_touch_super;
++	param->gc_control = yaffs_gc_control_callback;
++
++	yaffs_dev_to_lc(dev)->superBlock= sb;
++	
++
++#ifndef CONFIG_YAFFS_DOES_ECC
++	param->use_nand_ecc = 1;
++#endif
++
++#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES
++	param->wide_tnodes_disabled = 1;
++#endif
++
++	param->skip_checkpt_rd = options.skip_checkpoint_read;
++	param->skip_checkpt_wr = options.skip_checkpoint_write;
++
++	down(&yaffs_context_lock);
++	/* Get a mount id */
++	found = 0;
++	for(mount_id=0; ! found; mount_id++){
++		found = 1;
++		ylist_for_each(l,&yaffs_context_list){
++			context_iterator = ylist_entry(l,struct yaffs_LinuxContext,contextList);
++			if(context_iterator->mount_id == mount_id)
++				found = 0;
++		}
++	}
++	context->mount_id = mount_id;
++
++	ylist_add_tail(&(yaffs_dev_to_lc(dev)->contextList), &yaffs_context_list);
++	up(&yaffs_context_lock);
++
++        /* Directory search handling...*/
++        YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts));
++        param->remove_obj_fn = yaffs_remove_obj_callback;
++
++	init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock));
++
++	yaffs_gross_lock(dev);
++
++	err = yaffs_guts_initialise(dev);
++
++	T(YAFFS_TRACE_OS,
++	  (TSTR("yaffs_read_super: guts initialised %s\n"),
++	   (err == YAFFS_OK) ? "OK" : "FAILED"));
++	   
++	if(err == YAFFS_OK)
++		yaffs_bg_start(dev);
++		
++	if(!context->bgThread)
++		param->defered_dir_update = 0;
++
++
++	/* Release lock before yaffs_get_inode() */
++	yaffs_gross_unlock(dev);
++
++	/* Create root inode */
++	if (err == YAFFS_OK)
++		inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0,
++					yaffs_root(dev));
++
++	if (!inode)
++		return NULL;
++
++	inode->i_op = &yaffs_dir_inode_operations;
++	inode->i_fop = &yaffs_dir_operations;
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: got root inode\n")));
++
++	root = d_alloc_root(inode);
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: d_alloc_root done\n")));
++
++	if (!root) {
++		iput(inode);
++		return NULL;
++	}
++	sb->s_root = root;
++	sb->s_dirt = !dev->is_checkpointed;
++	T(YAFFS_TRACE_ALWAYS,
++		(TSTR("yaffs_read_super: is_checkpointed %d\n"),
++		dev->is_checkpointed));
++
++	T(YAFFS_TRACE_OS, (TSTR("yaffs_read_super: done\n")));
++	return sb;
++}
++
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data,
++					 int silent)
++{
++	return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL;
++}
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs_read_super(struct file_system_type *fs,
++			    int flags, const char *dev_name,
++			    void *data, struct vfsmount *mnt)
++{
++
++	return get_sb_bdev(fs, flags, dev_name, data,
++			   yaffs_internal_read_super_mtd, mnt);
++}
++#else
++static struct super_block *yaffs_read_super(struct file_system_type *fs,
++					    int flags, const char *dev_name,
++					    void *data)
++{
++
++	return get_sb_bdev(fs, flags, dev_name, data,
++			   yaffs_internal_read_super_mtd);
++}
++#endif
++
++static struct file_system_type yaffs_fs_type = {
++	.owner = THIS_MODULE,
++	.name = "yaffs",
++	.get_sb = yaffs_read_super,
++	.kill_sb = kill_block_super,
++	.fs_flags = FS_REQUIRES_DEV,
++};
++#else
++static struct super_block *yaffs_read_super(struct super_block *sb, void *data,
++					    int silent)
++{
++	return yaffs_internal_read_super(1, sb, data, silent);
++}
++
++static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super,
++		      FS_REQUIRES_DEV);
++#endif
++
++
++#ifdef CONFIG_YAFFS_YAFFS2
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
++static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data,
++					  int silent)
++{
++	return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL;
++}
++
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
++static int yaffs2_read_super(struct file_system_type *fs,
++			int flags, const char *dev_name, void *data,
++			struct vfsmount *mnt)
++{
++	return get_sb_bdev(fs, flags, dev_name, data,
++			yaffs2_internal_read_super_mtd, mnt);
++}
++#else
++static struct super_block *yaffs2_read_super(struct file_system_type *fs,
++					     int flags, const char *dev_name,
++					     void *data)
++{
++
++	return get_sb_bdev(fs, flags, dev_name, data,
++			   yaffs2_internal_read_super_mtd);
++}
++#endif
++
++static struct file_system_type yaffs2_fs_type = {
++	.owner = THIS_MODULE,
++	.name = "yaffs2",
++	.get_sb = yaffs2_read_super,
++	.kill_sb = kill_block_super,
++	.fs_flags = FS_REQUIRES_DEV,
++};
++#else
++static struct super_block *yaffs2_read_super(struct super_block *sb,
++					     void *data, int silent)
++{
++	return yaffs_internal_read_super(2, sb, data, silent);
++}
++
++static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super,
++		      FS_REQUIRES_DEV);
++#endif
++
++#endif				/* CONFIG_YAFFS_YAFFS2 */
++
++static struct proc_dir_entry *my_proc_entry;
++static struct proc_dir_entry *debug_proc_entry;
++
++static char *yaffs_dump_dev_part0(char *buf, yaffs_dev_t * dev)
++{
++	buf += sprintf(buf, "start_block.......... %d\n", dev->param.start_block);
++	buf += sprintf(buf, "end_block............ %d\n", dev->param.end_block);
++	buf += sprintf(buf, "total_bytes_per_chunk %d\n", dev->param.total_bytes_per_chunk);
++	buf += sprintf(buf, "use_nand_ecc......... %d\n", dev->param.use_nand_ecc);
++	buf += sprintf(buf, "no_tags_ecc.......... %d\n", dev->param.no_tags_ecc);
++	buf += sprintf(buf, "is_yaffs2............ %d\n", dev->param.is_yaffs2);
++	buf += sprintf(buf, "inband_tags.......... %d\n", dev->param.inband_tags);
++	buf += sprintf(buf, "empty_lost_n_found... %d\n", dev->param.empty_lost_n_found);
++	buf += sprintf(buf, "disable_lazy_load.... %d\n", dev->param.disable_lazy_load);
++	buf += sprintf(buf, "refresh_period....... %d\n", dev->param.refresh_period);
++	buf += sprintf(buf, "n_caches............. %d\n", dev->param.n_caches);
++	buf += sprintf(buf, "n_reserved_blocks.... %d\n", dev->param.n_reserved_blocks);
++	buf += sprintf(buf, "always_check_erased.. %d\n", dev->param.always_check_erased);
++
++	buf += sprintf(buf, "\n");
++
++	return buf;
++}
++
++
++static char *yaffs_dump_dev_part1(char *buf, yaffs_dev_t * dev)
++{
++	buf += sprintf(buf, "data_bytes_per_chunk. %d\n", dev->data_bytes_per_chunk);
++	buf += sprintf(buf, "chunk_grp_bits....... %d\n", dev->chunk_grp_bits);
++	buf += sprintf(buf, "chunk_grp_size....... %d\n", dev->chunk_grp_size);
++	buf += sprintf(buf, "n_erased_blocks...... %d\n", dev->n_erased_blocks);
++	buf += sprintf(buf, "blocks_in_checkpt.... %d\n", dev->blocks_in_checkpt);
++	buf += sprintf(buf, "\n");
++	buf += sprintf(buf, "n_tnodes............. %d\n", dev->n_tnodes);
++	buf += sprintf(buf, "n_obj................ %d\n", dev->n_obj);
++	buf += sprintf(buf, "n_free_chunks........ %d\n", dev->n_free_chunks);
++	buf += sprintf(buf, "\n");
++	buf += sprintf(buf, "n_page_writes........ %u\n", dev->n_page_writes);
++	buf += sprintf(buf, "n_page_reads......... %u\n", dev->n_page_reads);
++	buf += sprintf(buf, "n_erasures........... %u\n", dev->n_erasures);
++	buf += sprintf(buf, "n_gc_copies.......... %u\n", dev->n_gc_copies);
++	buf += sprintf(buf, "all_gcs.............. %u\n", dev->all_gcs);
++	buf += sprintf(buf, "passive_gc_count..... %u\n", dev->passive_gc_count);
++	buf += sprintf(buf, "oldest_dirty_gc_count %u\n", dev->oldest_dirty_gc_count);
++	buf += sprintf(buf, "n_gc_blocks.......... %u\n", dev->n_gc_blocks);
++	buf += sprintf(buf, "bg_gcs............... %u\n", dev->bg_gcs);
++	buf += sprintf(buf, "n_retired_writes..... %u\n", dev->n_retired_writes);
++	buf += sprintf(buf, "nRetireBlocks........ %u\n", dev->n_retired_blocks);
++	buf += sprintf(buf, "n_ecc_fixed.......... %u\n", dev->n_ecc_fixed);
++	buf += sprintf(buf, "n_ecc_unfixed........ %u\n", dev->n_ecc_unfixed);
++	buf += sprintf(buf, "n_tags_ecc_fixed..... %u\n", dev->n_tags_ecc_fixed);
++	buf += sprintf(buf, "n_tags_ecc_unfixed... %u\n", dev->n_tags_ecc_unfixed);
++	buf += sprintf(buf, "cache_hits........... %u\n", dev->cache_hits);
++	buf += sprintf(buf, "n_deleted_files...... %u\n", dev->n_deleted_files);
++	buf += sprintf(buf, "n_unlinked_files..... %u\n", dev->n_unlinked_files);
++	buf += sprintf(buf, "refresh_count........ %u\n", dev->refresh_count);
++	buf += sprintf(buf, "n_bg_deletions....... %u\n", dev->n_bg_deletions);
++
++	return buf;
++}
++
++static int yaffs_proc_read(char *page,
++			   char **start,
++			   off_t offset, int count, int *eof, void *data)
++{
++	struct ylist_head *item;
++	char *buf = page;
++	int step = offset;
++	int n = 0;
++
++	/* Get proc_file_read() to step 'offset' by one on each sucessive call.
++	 * We use 'offset' (*ppos) to indicate where we are in dev_list.
++	 * This also assumes the user has posted a read buffer large
++	 * enough to hold the complete output; but that's life in /proc.
++	 */
++
++	*(int *)start = 1;
++
++	/* Print header first */
++	if (step == 0)
++		buf += sprintf(buf, "Multi-version YAFFS built:" __DATE__ " " __TIME__"\n");
++	else if (step == 1)
++		buf += sprintf(buf,"\n");
++	else {
++		step-=2;
++		
++		down(&yaffs_context_lock);
++
++		/* Locate and print the Nth entry.  Order N-squared but N is small. */
++		ylist_for_each(item, &yaffs_context_list) {
++			struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList);
++			yaffs_dev_t *dev = dc->dev;
++
++			if (n < (step & ~1)) {
++				n+=2;
++				continue;
++			}
++			if((step & 1)==0){
++				buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->param.name);
++				buf = yaffs_dump_dev_part0(buf, dev);
++			} else
++				buf = yaffs_dump_dev_part1(buf, dev);
++			
++			break;
++		}
++		up(&yaffs_context_lock);
++	}
++
++	return buf - page < count ? buf - page : count;
++}
++
++static int yaffs_stats_proc_read(char *page,
++				char **start,
++				off_t offset, int count, int *eof, void *data)
++{
++	struct ylist_head *item;
++	char *buf = page;
++	int n = 0;
++
++	down(&yaffs_context_lock);
++
++	/* Locate and print the Nth entry.  Order N-squared but N is small. */
++	ylist_for_each(item, &yaffs_context_list) {
++		struct yaffs_LinuxContext *dc = ylist_entry(item, struct yaffs_LinuxContext, contextList);
++		yaffs_dev_t *dev = dc->dev;
++
++		int erasedChunks;
++
++		erasedChunks = dev->n_erased_blocks * dev->param.chunks_per_block;
++		
++		buf += sprintf(buf,"%d, %d, %d, %u, %u, %u, %u\n",
++				n, dev->n_free_chunks, erasedChunks,
++				dev->bg_gcs, dev->oldest_dirty_gc_count,
++				dev->n_obj, dev->n_tnodes);
++	}
++	up(&yaffs_context_lock);
++
++
++	return buf - page < count ? buf - page : count;
++}
++
++/**
++ * Set the verbosity of the warnings and error messages.
++ *
++ * Note that the names can only be a..z or _ with the current code.
++ */
++
++static struct {
++	char *mask_name;
++	unsigned mask_bitfield;
++} mask_flags[] = {
++	{"allocate", YAFFS_TRACE_ALLOCATE},
++	{"always", YAFFS_TRACE_ALWAYS},
++	{"background", YAFFS_TRACE_BACKGROUND},
++	{"bad_blocks", YAFFS_TRACE_BAD_BLOCKS},
++	{"buffers", YAFFS_TRACE_BUFFERS},
++	{"bug", YAFFS_TRACE_BUG},
++	{"checkpt", YAFFS_TRACE_CHECKPOINT},
++	{"deletion", YAFFS_TRACE_DELETION},
++	{"erase", YAFFS_TRACE_ERASE},
++	{"error", YAFFS_TRACE_ERROR},
++	{"gc_detail", YAFFS_TRACE_GC_DETAIL},
++	{"gc", YAFFS_TRACE_GC},
++	{"lock", YAFFS_TRACE_LOCK},
++	{"mtd", YAFFS_TRACE_MTD},
++	{"nandaccess", YAFFS_TRACE_NANDACCESS},
++	{"os", YAFFS_TRACE_OS},
++	{"scan_debug", YAFFS_TRACE_SCAN_DEBUG},
++	{"scan", YAFFS_TRACE_SCAN},
++	{"tracing", YAFFS_TRACE_TRACING},
++	{"sync", YAFFS_TRACE_SYNC},
++	{"write", YAFFS_TRACE_WRITE},
++
++	{"verify", YAFFS_TRACE_VERIFY},
++	{"verify_nand", YAFFS_TRACE_VERIFY_NAND},
++	{"verify_full", YAFFS_TRACE_VERIFY_FULL},
++	{"verify_all", YAFFS_TRACE_VERIFY_ALL},
++
++	{"all", 0xffffffff},
++	{"none", 0},
++	{NULL, 0},
++};
++
++#define MAX_MASK_NAME_LENGTH 40
++static int yaffs_proc_write_trace_options(struct file *file, const char *buf,
++					 unsigned long count, void *data)
++{
++	unsigned rg = 0, mask_bitfield;
++	char *end;
++	char *mask_name;
++	const char *x;
++	char substring[MAX_MASK_NAME_LENGTH + 1];
++	int i;
++	int done = 0;
++	int add, len = 0;
++	int pos = 0;
++
++	rg = yaffs_trace_mask;
++
++	while (!done && (pos < count)) {
++		done = 1;
++		while ((pos < count) && isspace(buf[pos]))
++			pos++;
++
++		switch (buf[pos]) {
++		case '+':
++		case '-':
++		case '=':
++			add = buf[pos];
++			pos++;
++			break;
++
++		default:
++			add = ' ';
++			break;
++		}
++		mask_name = NULL;
++
++		mask_bitfield = simple_strtoul(buf + pos, &end, 0);
++
++		if (end > buf + pos) {
++			mask_name = "numeral";
++			len = end - (buf + pos);
++			pos += len;
++			done = 0;
++		} else {
++			for (x = buf + pos, i = 0;
++			    (*x == '_' || (*x >= 'a' && *x <= 'z')) &&
++			    i < MAX_MASK_NAME_LENGTH; x++, i++, pos++)
++				substring[i] = *x;
++			substring[i] = '\0';
++
++			for (i = 0; mask_flags[i].mask_name != NULL; i++) {
++				if (strcmp(substring, mask_flags[i].mask_name) == 0) {
++					mask_name = mask_flags[i].mask_name;
++					mask_bitfield = mask_flags[i].mask_bitfield;
++					done = 0;
++					break;
++				}
++			}
++		}
++
++		if (mask_name != NULL) {
++			done = 0;
++			switch (add) {
++			case '-':
++				rg &= ~mask_bitfield;
++				break;
++			case '+':
++				rg |= mask_bitfield;
++				break;
++			case '=':
++				rg = mask_bitfield;
++				break;
++			default:
++				rg |= mask_bitfield;
++				break;
++			}
++		}
++	}
++
++	yaffs_trace_mask = rg | YAFFS_TRACE_ALWAYS;
++
++	printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_trace_mask);
++
++	if (rg & YAFFS_TRACE_ALWAYS) {
++		for (i = 0; mask_flags[i].mask_name != NULL; i++) {
++			char flag;
++			flag = ((rg & mask_flags[i].mask_bitfield) ==
++				mask_flags[i].mask_bitfield) ? '+' : '-';
++			printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name);
++		}
++	}
++
++	return count;
++}
++
++
++static int yaffs_proc_write(struct file *file, const char *buf,
++					 unsigned long count, void *data)
++{
++        return yaffs_proc_write_trace_options(file, buf, count, data);
++}
++
++/* Stuff to handle installation of file systems */
++struct file_system_to_install {
++	struct file_system_type *fst;
++	int installed;
++};
++
++static struct file_system_to_install fs_to_install[] = {
++	{&yaffs_fs_type, 0},
++	{&yaffs2_fs_type, 0},
++	{NULL, 0}
++};
++
++static int __init init_yaffs_fs(void)
++{
++	int error = 0;
++	struct file_system_to_install *fsinst;
++
++	T(YAFFS_TRACE_ALWAYS,
++	  (TSTR("yaffs built " __DATE__ " " __TIME__ " Installing. \n")));
++
++#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED
++	T(YAFFS_TRACE_ALWAYS,
++	  (TSTR(" \n\n\n\nYAFFS-WARNING CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED selected.\n\n\n\n")));
++#endif
++
++
++
++
++	init_MUTEX(&yaffs_context_lock);
++
++	/* Install the proc_fs entries */
++	my_proc_entry = create_proc_entry("yaffs",
++					       S_IRUGO | S_IFREG,
++					       YPROC_ROOT);
++
++	if (my_proc_entry) {
++		my_proc_entry->write_proc = yaffs_proc_write;
++		my_proc_entry->read_proc = yaffs_proc_read;
++		my_proc_entry->data = NULL;
++	} else
++		return -ENOMEM;
++
++	debug_proc_entry = create_proc_entry("yaffs_stats",
++					       S_IRUGO | S_IFREG,
++					       YPROC_ROOT);
++
++	if (debug_proc_entry) {
++		debug_proc_entry->write_proc = NULL;
++		debug_proc_entry->read_proc = yaffs_stats_proc_read;
++		debug_proc_entry->data = NULL;
++	} else
++		return -ENOMEM;
++
++	/* Now add the file system entries */
++
++	fsinst = fs_to_install;
++
++	while (fsinst->fst && !error) {
++		error = register_filesystem(fsinst->fst);
++		if (!error)
++			fsinst->installed = 1;
++		fsinst++;
++	}
++
++	/* Any errors? uninstall  */
++	if (error) {
++		fsinst = fs_to_install;
++
++		while (fsinst->fst) {
++			if (fsinst->installed) {
++				unregister_filesystem(fsinst->fst);
++				fsinst->installed = 0;
++			}
++			fsinst++;
++		}
++	}
++
++	return error;
++}
++
++static void __exit exit_yaffs_fs(void)
++{
++
++	struct file_system_to_install *fsinst;
++
++	T(YAFFS_TRACE_ALWAYS,
++		(TSTR("yaffs built " __DATE__ " " __TIME__ " removing. \n")));
++
++	remove_proc_entry("yaffs", YPROC_ROOT);
++	remove_proc_entry("yaffs_stats", YPROC_ROOT);
++
++	fsinst = fs_to_install;
++
++	while (fsinst->fst) {
++		if (fsinst->installed) {
++			unregister_filesystem(fsinst->fst);
++			fsinst->installed = 0;
++		}
++		fsinst++;
++	}
++}
++
++module_init(init_yaffs_fs)
++module_exit(exit_yaffs_fs)
++
++MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system");
++MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2010");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/fs/yaffs2/yaffs_yaffs1.c
+@@ -0,0 +1,465 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++#include "yaffs_yaffs1.h"
++#include "yportenv.h"
++#include "yaffs_trace.h"
++#include "yaffs_bitmap.h"
++#include "yaffs_getblockinfo.h"
++#include "yaffs_nand.h"
++
++
++int yaffs1_scan(yaffs_dev_t *dev)
++{
++	yaffs_ext_tags tags;
++	int blk;
++	int blockIterator;
++	int startIterator;
++	int endIterator;
++	int result;
++
++	int chunk;
++	int c;
++	int deleted;
++	yaffs_block_state_t state;
++	yaffs_obj_t *hard_list = NULL;
++	yaffs_block_info_t *bi;
++	__u32 seq_number;
++	yaffs_obj_header *oh;
++	yaffs_obj_t *in;
++	yaffs_obj_t *parent;
++
++	int alloc_failed = 0;
++
++	struct yaffs_shadow_fixer_s *shadowFixerList = NULL;
++
++
++	__u8 *chunkData;
++
++
++
++	T(YAFFS_TRACE_SCAN,
++	  (TSTR("yaffs1_scan starts  intstartblk %d intendblk %d..." TENDSTR),
++	   dev->internal_start_block, dev->internal_end_block));
++
++	chunkData = yaffs_get_temp_buffer(dev, __LINE__);
++
++	dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER;
++
++	/* Scan all the blocks to determine their state */
++	bi = dev->block_info;
++	for (blk = dev->internal_start_block; blk <= dev->internal_end_block; blk++) {
++		yaffs_clear_chunk_bits(dev, blk);
++		bi->pages_in_use = 0;
++		bi->soft_del_pages = 0;
++
++		yaffs_query_init_block_state(dev, blk, &state, &seq_number);
++
++		bi->block_state = state;
++		bi->seq_number = seq_number;
++
++		if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK)
++			bi->block_state = state = YAFFS_BLOCK_STATE_DEAD;
++
++		T(YAFFS_TRACE_SCAN_DEBUG,
++		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
++		   state, seq_number));
++
++		if (state == YAFFS_BLOCK_STATE_DEAD) {
++			T(YAFFS_TRACE_BAD_BLOCKS,
++			  (TSTR("block %d is bad" TENDSTR), blk));
++		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
++			T(YAFFS_TRACE_SCAN_DEBUG,
++			  (TSTR("Block empty " TENDSTR)));
++			dev->n_erased_blocks++;
++			dev->n_free_chunks += dev->param.chunks_per_block;
++		}
++		bi++;
++	}
++
++	startIterator = dev->internal_start_block;
++	endIterator = dev->internal_end_block;
++
++	/* For each block.... */
++	for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator;
++	     blockIterator++) {
++
++		YYIELD();
++
++		YYIELD();
++
++		blk = blockIterator;
++
++		bi = yaffs_get_block_info(dev, blk);
++		state = bi->block_state;
++
++		deleted = 0;
++
++		/* For each chunk in each block that needs scanning....*/
++		for (c = 0; !alloc_failed && c < dev->param.chunks_per_block &&
++		     state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) {
++			/* Read the tags and decide what to do */
++			chunk = blk * dev->param.chunks_per_block + c;
++
++			result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL,
++							&tags);
++
++			/* Let's have a good look at this chunk... */
++
++			if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED || tags.is_deleted) {
++				/* YAFFS1 only...
++				 * A deleted chunk
++				 */
++				deleted++;
++				dev->n_free_chunks++;
++				/*T((" %d %d deleted\n",blk,c)); */
++			} else if (!tags.chunk_used) {
++				/* An unassigned chunk in the block
++				 * This means that either the block is empty or
++				 * this is the one being allocated from
++				 */
++
++				if (c == 0) {
++					/* We're looking at the first chunk in the block so the block is unused */
++					state = YAFFS_BLOCK_STATE_EMPTY;
++					dev->n_erased_blocks++;
++				} else {
++					/* this is the block being allocated from */
++					T(YAFFS_TRACE_SCAN,
++					  (TSTR
++					   (" Allocating from %d %d" TENDSTR),
++					   blk, c));
++					state = YAFFS_BLOCK_STATE_ALLOCATING;
++					dev->alloc_block = blk;
++					dev->alloc_page = c;
++					dev->alloc_block_finder = blk;
++					/* Set block finder here to encourage the allocator to go forth from here. */
++
++				}
++
++				dev->n_free_chunks += (dev->param.chunks_per_block - c);
++			} else if (tags.chunk_id > 0) {
++				/* chunk_id > 0 so it is a data chunk... */
++				unsigned int endpos;
++
++				yaffs_set_chunk_bit(dev, blk, c);
++				bi->pages_in_use++;
++
++				in = yaffs_find_or_create_by_number(dev,
++								      tags.
++								      obj_id,
++								      YAFFS_OBJECT_TYPE_FILE);
++				/* PutChunkIntoFile checks for a clash (two data chunks with
++				 * the same chunk_id).
++				 */
++
++				if (!in)
++					alloc_failed = 1;
++
++				if (in) {
++					if (!yaffs_put_chunk_in_file(in, tags.chunk_id, chunk, 1))
++						alloc_failed = 1;
++				}
++
++				endpos =
++				    (tags.chunk_id - 1) * dev->data_bytes_per_chunk +
++				    tags.n_bytes;
++				if (in &&
++				    in->variant_type == YAFFS_OBJECT_TYPE_FILE
++				    && in->variant.file_variant.scanned_size <
++				    endpos) {
++					in->variant.file_variant.
++					    scanned_size = endpos;
++					if (!dev->param.use_header_file_size) {
++						in->variant.file_variant.
++						    file_size =
++						    in->variant.file_variant.
++						    scanned_size;
++					}
++
++				}
++				/* T((" %d %d data %d %d\n",blk,c,tags.obj_id,tags.chunk_id));   */
++			} else {
++				/* chunk_id == 0, so it is an ObjectHeader.
++				 * Thus, we read in the object header and make the object
++				 */
++				yaffs_set_chunk_bit(dev, blk, c);
++				bi->pages_in_use++;
++
++				result = yaffs_rd_chunk_tags_nand(dev, chunk,
++								chunkData,
++								NULL);
++
++				oh = (yaffs_obj_header *) chunkData;
++
++				in = yaffs_find_by_number(dev,
++							      tags.obj_id);
++				if (in && in->variant_type != oh->type) {
++					/* This should not happen, but somehow
++					 * Wev'e ended up with an obj_id that has been reused but not yet
++					 * deleted, and worse still it has changed type. Delete the old object.
++					 */
++
++					yaffs_del_obj(in);
++
++					in = 0;
++				}
++
++				in = yaffs_find_or_create_by_number(dev,
++								      tags.
++								      obj_id,
++								      oh->type);
++
++				if (!in)
++					alloc_failed = 1;
++
++				if (in && oh->shadows_obj > 0) {
++
++					struct yaffs_shadow_fixer_s *fixer;
++					fixer = YMALLOC(sizeof(struct yaffs_shadow_fixer_s));
++					if (fixer) {
++						fixer->next = shadowFixerList;
++						shadowFixerList = fixer;
++						fixer->obj_id = tags.obj_id;
++						fixer->shadowed_id = oh->shadows_obj;
++						T(YAFFS_TRACE_SCAN,
++						  (TSTR
++						   (" Shadow fixer: %d shadows %d" TENDSTR),
++						   fixer->obj_id, fixer->shadowed_id));
++
++					}
++
++				}
++
++				if (in && in->valid) {
++					/* We have already filled this one. We have a duplicate and need to resolve it. */
++
++					unsigned existingSerial = in->serial;
++					unsigned newSerial = tags.serial_number;
++
++					if (((existingSerial + 1) & 3) == newSerial) {
++						/* Use new one - destroy the exisiting one */
++						yaffs_chunk_del(dev,
++								  in->hdr_chunk,
++								  1, __LINE__);
++						in->valid = 0;
++					} else {
++						/* Use existing - destroy this one. */
++						yaffs_chunk_del(dev, chunk, 1,
++								  __LINE__);
++					}
++				}
++
++				if (in && !in->valid &&
++				    (tags.obj_id == YAFFS_OBJECTID_ROOT ||
++				     tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND)) {
++					/* We only load some info, don't fiddle with directory structure */
++					in->valid = 1;
++					in->variant_type = oh->type;
++
++					in->yst_mode = oh->yst_mode;
++#ifdef CONFIG_YAFFS_WINCE
++					in->win_atime[0] = oh->win_atime[0];
++					in->win_ctime[0] = oh->win_ctime[0];
++					in->win_mtime[0] = oh->win_mtime[0];
++					in->win_atime[1] = oh->win_atime[1];
++					in->win_ctime[1] = oh->win_ctime[1];
++					in->win_mtime[1] = oh->win_mtime[1];
++#else
++					in->yst_uid = oh->yst_uid;
++					in->yst_gid = oh->yst_gid;
++					in->yst_atime = oh->yst_atime;
++					in->yst_mtime = oh->yst_mtime;
++					in->yst_ctime = oh->yst_ctime;
++					in->yst_rdev = oh->yst_rdev;
++#endif
++					in->hdr_chunk = chunk;
++					in->serial = tags.serial_number;
++
++				} else if (in && !in->valid) {
++					/* we need to load this info */
++
++					in->valid = 1;
++					in->variant_type = oh->type;
++
++					in->yst_mode = oh->yst_mode;
++#ifdef CONFIG_YAFFS_WINCE
++					in->win_atime[0] = oh->win_atime[0];
++					in->win_ctime[0] = oh->win_ctime[0];
++					in->win_mtime[0] = oh->win_mtime[0];
++					in->win_atime[1] = oh->win_atime[1];
++					in->win_ctime[1] = oh->win_ctime[1];
++					in->win_mtime[1] = oh->win_mtime[1];
++#else
++					in->yst_uid = oh->yst_uid;
++					in->yst_gid = oh->yst_gid;
++					in->yst_atime = oh->yst_atime;
++					in->yst_mtime = oh->yst_mtime;
++					in->yst_ctime = oh->yst_ctime;
++					in->yst_rdev = oh->yst_rdev;
++#endif
++					in->hdr_chunk = chunk;
++					in->serial = tags.serial_number;
++
++					yaffs_set_obj_name_from_oh(in, oh);
++					in->dirty = 0;
++
++					/* directory stuff...
++					 * hook up to parent
++					 */
++
++					parent =
++					    yaffs_find_or_create_by_number
++					    (dev, oh->parent_obj_id,
++					     YAFFS_OBJECT_TYPE_DIRECTORY);
++					if (!parent)
++						alloc_failed = 1;
++					if (parent && parent->variant_type ==
++					    YAFFS_OBJECT_TYPE_UNKNOWN) {
++						/* Set up as a directory */
++						parent->variant_type =
++							YAFFS_OBJECT_TYPE_DIRECTORY;
++						YINIT_LIST_HEAD(&parent->variant.
++								dir_variant.
++								children);
++					} else if (!parent || parent->variant_type !=
++						   YAFFS_OBJECT_TYPE_DIRECTORY) {
++						/* Hoosterman, another problem....
++						 * We're trying to use a non-directory as a directory
++						 */
++
++						T(YAFFS_TRACE_ERROR,
++						  (TSTR
++						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
++						    TENDSTR)));
++						parent = dev->lost_n_found;
++					}
++
++					yaffs_add_obj_to_dir(parent, in);
++
++					if (0 && (parent == dev->del_dir ||
++						  parent == dev->unlinked_dir)) {
++						in->deleted = 1;	/* If it is unlinked at start up then it wants deleting */
++						dev->n_deleted_files++;
++					}
++					/* Note re hardlinks.
++					 * Since we might scan a hardlink before its equivalent object is scanned
++					 * we put them all in a list.
++					 * After scanning is complete, we should have all the objects, so we run through this
++					 * list and fix up all the chains.
++					 */
++
++					switch (in->variant_type) {
++					case YAFFS_OBJECT_TYPE_UNKNOWN:
++						/* Todo got a problem */
++						break;
++					case YAFFS_OBJECT_TYPE_FILE:
++						if (dev->param.use_header_file_size)
++
++							in->variant.file_variant.
++							    file_size =
++							    oh->file_size;
++
++						break;
++					case YAFFS_OBJECT_TYPE_HARDLINK:
++						in->variant.hardlink_variant.
++							equiv_id =
++							oh->equiv_id;
++						in->hard_links.next =
++							(struct ylist_head *)
++							hard_list;
++						hard_list = in;
++						break;
++					case YAFFS_OBJECT_TYPE_DIRECTORY:
++						/* Do nothing */
++						break;
++					case YAFFS_OBJECT_TYPE_SPECIAL:
++						/* Do nothing */
++						break;
++					case YAFFS_OBJECT_TYPE_SYMLINK:
++						in->variant.symlink_variant.alias =
++						    yaffs_clone_str(oh->alias);
++						if (!in->variant.symlink_variant.alias)
++							alloc_failed = 1;
++						break;
++					}
++
++				}
++			}
++		}
++
++		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
++			/* If we got this far while scanning, then the block is fully allocated.*/
++			state = YAFFS_BLOCK_STATE_FULL;
++		}
++
++		if (state == YAFFS_BLOCK_STATE_ALLOCATING) {
++			/* If the block was partially allocated then treat it as fully allocated.*/
++			state = YAFFS_BLOCK_STATE_FULL;
++			dev->alloc_block = -1;
++		}
++
++		bi->block_state = state;
++
++		/* Now let's see if it was dirty */
++		if (bi->pages_in_use == 0 &&
++		    !bi->has_shrink_hdr &&
++		    bi->block_state == YAFFS_BLOCK_STATE_FULL) {
++			yaffs_block_became_dirty(dev, blk);
++		}
++
++	}
++
++
++	/* Ok, we've done all the scanning.
++	 * Fix up the hard link chains.
++	 * We should now have scanned all the objects, now it's time to add these
++	 * hardlinks.
++	 */
++
++	yaffs_link_fixup(dev, hard_list);
++
++	/* Fix up any shadowed objects */
++	{
++		struct yaffs_shadow_fixer_s *fixer;
++		yaffs_obj_t *obj;
++
++		while (shadowFixerList) {
++			fixer = shadowFixerList;
++			shadowFixerList = fixer->next;
++			/* Complete the rename transaction by deleting the shadowed object
++			 * then setting the object header to unshadowed.
++			 */
++			obj = yaffs_find_by_number(dev, fixer->shadowed_id);
++			if (obj)
++				yaffs_del_obj(obj);
++
++			obj = yaffs_find_by_number(dev, fixer->obj_id);
++
++			if (obj)
++				yaffs_update_oh(obj, NULL, 1, 0, 0, NULL);
++
++			YFREE(fixer);
++		}
++	}
++
++	yaffs_release_temp_buffer(dev, chunkData, __LINE__);
++
++	if (alloc_failed)
++		return YAFFS_FAIL;
++
++	T(YAFFS_TRACE_SCAN, (TSTR("yaffs1_scan ends" TENDSTR)));
++
++
++	return YAFFS_OK;
++}
++
+--- /dev/null
++++ b/fs/yaffs2/yaffs_yaffs1.h
+@@ -0,0 +1,22 @@
++/*
++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU Lesser General Public License version 2.1 as
++ * published by the Free Software Foundation.
++ *
++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
++ */
++
++#ifndef __YAFFS_YAFFS1_H__
++#define __YAFFS_YAFFS1_H__
++
++#include "yaffs_guts.h"
++int yaffs1_scan(yaffs_dev_t *dev);
++
++#endif
+--- /dev/null
++++ b/fs/yaffs2/yaffs_yaffs2.c
+@@ -0,0 +1,1540 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++
++#include "yaffs_guts.h"
++#include "yaffs_trace.h"
++#include "yaffs_yaffs2.h"
++#include "yaffs_checkptrw.h"
++#include "yaffs_bitmap.h"
++#include "yaffs_qsort.h"
++#include "yaffs_nand.h"
++#include "yaffs_getblockinfo.h"
++#include "yaffs_verify.h"
++
++/*
++ * Checkpoints are really no benefit on very small partitions.
++ *
++ * To save space on small partitions don't bother with checkpoints unless
++ * the partition is at least this big.
++ */
++#define YAFFS_CHECKPOINT_MIN_BLOCKS 60
++
++#define YAFFS_SMALL_HOLE_THRESHOLD 4
++
++
++/*
++ * Oldest Dirty Sequence Number handling.
++ */
++ 
++/* yaffs_calc_oldest_dirty_seq()
++ * yaffs2_find_oldest_dirty_seq()
++ * Calculate the oldest dirty sequence number if we don't know it.
++ */
++void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev)
++{
++	int i;
++	unsigned seq;
++	unsigned block_no = 0;
++	yaffs_block_info_t *b;
++
++	if(!dev->param.is_yaffs2)
++		return;
++
++	/* Find the oldest dirty sequence number. */
++	seq = dev->seq_number + 1;
++	b = dev->block_info;
++	for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) {
++		if (b->block_state == YAFFS_BLOCK_STATE_FULL &&
++			(b->pages_in_use - b->soft_del_pages) < dev->param.chunks_per_block &&
++			b->seq_number < seq) {
++			seq = b->seq_number;
++			block_no = i;
++		}
++		b++;
++	}
++
++	if(block_no){
++		dev->oldest_dirty_seq = seq;
++		dev->oldest_dirty_block = block_no;
++	}
++
++}
++
++
++void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev)
++{
++	if(!dev->param.is_yaffs2)
++		return;
++
++	if(!dev->oldest_dirty_seq)
++		yaffs_calc_oldest_dirty_seq(dev);
++}
++
++/*
++ * yaffs_clear_oldest_dirty_seq()
++ * Called when a block is erased or marked bad. (ie. when its seq_number
++ * becomes invalid). If the value matches the oldest then we clear 
++ * dev->oldest_dirty_seq to force its recomputation.
++ */
++void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi)
++{
++
++	if(!dev->param.is_yaffs2)
++		return;
++
++	if(!bi || bi->seq_number == dev->oldest_dirty_seq){
++		dev->oldest_dirty_seq = 0;
++		dev->oldest_dirty_block = 0;
++	}
++}
++
++/*
++ * yaffs2_update_oldest_dirty_seq()
++ * Update the oldest dirty sequence number whenever we dirty a block.
++ * Only do this if the oldest_dirty_seq is actually being tracked.
++ */
++void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi)
++{
++	if(!dev->param.is_yaffs2)
++		return;
++
++	if(dev->oldest_dirty_seq){
++		if(dev->oldest_dirty_seq > bi->seq_number){
++			dev->oldest_dirty_seq = bi->seq_number;
++			dev->oldest_dirty_block = block_no;
++		}
++	}
++}
++
++int yaffs_block_ok_for_gc(yaffs_dev_t *dev,
++					yaffs_block_info_t *bi)
++{
++
++	if (!dev->param.is_yaffs2)
++		return 1;	/* disqualification only applies to yaffs2. */
++
++	if (!bi->has_shrink_hdr)
++		return 1;	/* can gc */
++
++	yaffs2_find_oldest_dirty_seq(dev);
++
++	/* Can't do gc of this block if there are any blocks older than this one that have
++	 * discarded pages.
++	 */
++	return (bi->seq_number <= dev->oldest_dirty_seq);
++}
++
++/*
++ * yaffs2_find_refresh_block()
++ * periodically finds the oldest full block by sequence number for refreshing.
++ * Only for yaffs2.
++ */
++__u32 yaffs2_find_refresh_block(yaffs_dev_t *dev)
++{
++	__u32 b ;
++
++	__u32 oldest = 0;
++	__u32 oldestSequence = 0;
++
++	yaffs_block_info_t *bi;
++
++	if(!dev->param.is_yaffs2)
++		return oldest;
++
++	/*
++	 * If refresh period < 10 then refreshing is disabled.
++	 */
++	if(dev->param.refresh_period < 10)
++	        return oldest;
++
++        /*
++         * Fix broken values.
++         */
++        if(dev->refresh_skip > dev->param.refresh_period)
++                dev->refresh_skip = dev->param.refresh_period;
++
++	if(dev->refresh_skip > 0)
++	        return oldest;
++
++	/*
++	 * Refresh skip is now zero.
++	 * We'll do a refresh this time around....
++	 * Update the refresh skip and find the oldest block.
++	 */
++	dev->refresh_skip = dev->param.refresh_period;
++	dev->refresh_count++;
++	bi = dev->block_info;
++	for (b = dev->internal_start_block; b <=dev->internal_end_block; b++){
++
++		if (bi->block_state == YAFFS_BLOCK_STATE_FULL){
++
++			if(oldest < 1 ||
++                                bi->seq_number < oldestSequence){
++                                oldest = b;
++                                oldestSequence = bi->seq_number;
++                        }
++		}
++		bi++;
++	}
++
++	if (oldest > 0) {
++		T(YAFFS_TRACE_GC,
++		  (TSTR("GC refresh count %d selected block %d with seq_number %d" TENDSTR),
++		   dev->refresh_count, oldest, oldestSequence));
++	}
++
++	return oldest;
++}
++
++int yaffs2_checkpt_required(yaffs_dev_t *dev)
++{
++	int nblocks;
++	
++	if(!dev->param.is_yaffs2)
++		return 0;
++	
++	nblocks = dev->internal_end_block - dev->internal_start_block + 1 ;
++
++	return 	!dev->param.skip_checkpt_wr &&
++		!dev->read_only &&
++		(nblocks >= YAFFS_CHECKPOINT_MIN_BLOCKS);
++}
++
++int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev)
++{
++	int retval;
++
++	if(!dev->param.is_yaffs2)
++		return 0;
++
++	if (!dev->checkpoint_blocks_required &&
++		yaffs2_checkpt_required(dev)){
++		/* Not a valid value so recalculate */
++		int n_bytes = 0;
++		int nBlocks;
++		int devBlocks = (dev->param.end_block - dev->param.start_block + 1);
++
++		n_bytes += sizeof(yaffs_checkpt_validty_t);
++		n_bytes += sizeof(yaffs_checkpt_dev_t);
++		n_bytes += devBlocks * sizeof(yaffs_block_info_t);
++		n_bytes += devBlocks * dev->chunk_bit_stride;
++		n_bytes += (sizeof(yaffs_checkpt_obj_t) + sizeof(__u32)) * (dev->n_obj);
++		n_bytes += (dev->tnode_size + sizeof(__u32)) * (dev->n_tnodes);
++		n_bytes += sizeof(yaffs_checkpt_validty_t);
++		n_bytes += sizeof(__u32); /* checksum*/
++
++		/* Round up and add 2 blocks to allow for some bad blocks, so add 3 */
++
++		nBlocks = (n_bytes/(dev->data_bytes_per_chunk * dev->param.chunks_per_block)) + 3;
++
++		dev->checkpoint_blocks_required = nBlocks;
++	}
++
++	retval = dev->checkpoint_blocks_required - dev->blocks_in_checkpt;
++	if(retval < 0)
++		retval = 0;
++	return retval;
++}
++
++/*--------------------- Checkpointing --------------------*/
++
++
++static int yaffs2_wr_checkpt_validity_marker(yaffs_dev_t *dev, int head)
++{
++	yaffs_checkpt_validty_t cp;
++
++	memset(&cp, 0, sizeof(cp));
++
++	cp.struct_type = sizeof(cp);
++	cp.magic = YAFFS_MAGIC;
++	cp.version = YAFFS_CHECKPOINT_VERSION;
++	cp.head = (head) ? 1 : 0;
++
++	return (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp)) ?
++		1 : 0;
++}
++
++static int yaffs2_rd_checkpt_validty_marker(yaffs_dev_t *dev, int head)
++{
++	yaffs_checkpt_validty_t cp;
++	int ok;
++
++	ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp));
++
++	if (ok)
++		ok = (cp.struct_type == sizeof(cp)) &&
++		     (cp.magic == YAFFS_MAGIC) &&
++		     (cp.version == YAFFS_CHECKPOINT_VERSION) &&
++		     (cp.head == ((head) ? 1 : 0));
++	return ok ? 1 : 0;
++}
++
++static void yaffs2_dev_to_checkpt_dev(yaffs_checkpt_dev_t *cp,
++					   yaffs_dev_t *dev)
++{
++	cp->n_erased_blocks = dev->n_erased_blocks;
++	cp->alloc_block = dev->alloc_block;
++	cp->alloc_page = dev->alloc_page;
++	cp->n_free_chunks = dev->n_free_chunks;
++
++	cp->n_deleted_files = dev->n_deleted_files;
++	cp->n_unlinked_files = dev->n_unlinked_files;
++	cp->n_bg_deletions = dev->n_bg_deletions;
++	cp->seq_number = dev->seq_number;
++
++}
++
++static void yaffs_checkpt_dev_to_dev(yaffs_dev_t *dev,
++					   yaffs_checkpt_dev_t *cp)
++{
++	dev->n_erased_blocks = cp->n_erased_blocks;
++	dev->alloc_block = cp->alloc_block;
++	dev->alloc_page = cp->alloc_page;
++	dev->n_free_chunks = cp->n_free_chunks;
++
++	dev->n_deleted_files = cp->n_deleted_files;
++	dev->n_unlinked_files = cp->n_unlinked_files;
++	dev->n_bg_deletions = cp->n_bg_deletions;
++	dev->seq_number = cp->seq_number;
++}
++
++
++static int yaffs2_wr_checkpt_dev(yaffs_dev_t *dev)
++{
++	yaffs_checkpt_dev_t cp;
++	__u32 n_bytes;
++	__u32 nBlocks = (dev->internal_end_block - dev->internal_start_block + 1);
++
++	int ok;
++
++	/* Write device runtime values*/
++	yaffs2_dev_to_checkpt_dev(&cp, dev);
++	cp.struct_type = sizeof(cp);
++
++	ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp));
++
++	/* Write block info */
++	if (ok) {
++		n_bytes = nBlocks * sizeof(yaffs_block_info_t);
++		ok = (yaffs2_checkpt_wr(dev, dev->block_info, n_bytes) == n_bytes);
++	}
++
++	/* Write chunk bits */
++	if (ok) {
++		n_bytes = nBlocks * dev->chunk_bit_stride;
++		ok = (yaffs2_checkpt_wr(dev, dev->chunk_bits, n_bytes) == n_bytes);
++	}
++	return	 ok ? 1 : 0;
++
++}
++
++static int yaffs2_rd_checkpt_dev(yaffs_dev_t *dev)
++{
++	yaffs_checkpt_dev_t cp;
++	__u32 n_bytes;
++	__u32 nBlocks = (dev->internal_end_block - dev->internal_start_block + 1);
++
++	int ok;
++
++	ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp));
++	if (!ok)
++		return 0;
++
++	if (cp.struct_type != sizeof(cp))
++		return 0;
++
++
++	yaffs_checkpt_dev_to_dev(dev, &cp);
++
++	n_bytes = nBlocks * sizeof(yaffs_block_info_t);
++
++	ok = (yaffs2_checkpt_rd(dev, dev->block_info, n_bytes) == n_bytes);
++
++	if (!ok)
++		return 0;
++	n_bytes = nBlocks * dev->chunk_bit_stride;
++
++	ok = (yaffs2_checkpt_rd(dev, dev->chunk_bits, n_bytes) == n_bytes);
++
++	return ok ? 1 : 0;
++}
++
++static void yaffs2_obj_checkpt_obj(yaffs_checkpt_obj_t *cp,
++					   yaffs_obj_t *obj)
++{
++
++	cp->obj_id = obj->obj_id;
++	cp->parent_id = (obj->parent) ? obj->parent->obj_id : 0;
++	cp->hdr_chunk = obj->hdr_chunk;
++	cp->variant_type = obj->variant_type;
++	cp->deleted = obj->deleted;
++	cp->soft_del = obj->soft_del;
++	cp->unlinked = obj->unlinked;
++	cp->fake = obj->fake;
++	cp->rename_allowed = obj->rename_allowed;
++	cp->unlink_allowed = obj->unlink_allowed;
++	cp->serial = obj->serial;
++	cp->n_data_chunks = obj->n_data_chunks;
++
++	if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE)
++		cp->size_or_equiv_obj = obj->variant.file_variant.file_size;
++	else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK)
++		cp->size_or_equiv_obj = obj->variant.hardlink_variant.equiv_id;
++}
++
++static int taffs2_checkpt_obj_to_obj(yaffs_obj_t *obj, yaffs_checkpt_obj_t *cp)
++{
++
++	yaffs_obj_t *parent;
++
++	if (obj->variant_type != cp->variant_type) {
++		T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d "
++			TCONT("chunk %d does not match existing object type %d")
++			TENDSTR), cp->obj_id, cp->variant_type, cp->hdr_chunk,
++			obj->variant_type));
++		return 0;
++	}
++
++	obj->obj_id = cp->obj_id;
++
++	if (cp->parent_id)
++		parent = yaffs_find_or_create_by_number(
++					obj->my_dev,
++					cp->parent_id,
++					YAFFS_OBJECT_TYPE_DIRECTORY);
++	else
++		parent = NULL;
++
++	if (parent) {
++		if (parent->variant_type != YAFFS_OBJECT_TYPE_DIRECTORY) {
++			T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d"
++				TCONT(" chunk %d Parent type, %d, not directory")
++				TENDSTR),
++				cp->obj_id, cp->parent_id, cp->variant_type,
++				cp->hdr_chunk, parent->variant_type));
++			return 0;
++		}
++		yaffs_add_obj_to_dir(parent, obj);
++	}
++
++	obj->hdr_chunk = cp->hdr_chunk;
++	obj->variant_type = cp->variant_type;
++	obj->deleted = cp->deleted;
++	obj->soft_del = cp->soft_del;
++	obj->unlinked = cp->unlinked;
++	obj->fake = cp->fake;
++	obj->rename_allowed = cp->rename_allowed;
++	obj->unlink_allowed = cp->unlink_allowed;
++	obj->serial = cp->serial;
++	obj->n_data_chunks = cp->n_data_chunks;
++
++	if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE)
++		obj->variant.file_variant.file_size = cp->size_or_equiv_obj;
++	else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK)
++		obj->variant.hardlink_variant.equiv_id = cp->size_or_equiv_obj;
++
++	if (obj->hdr_chunk > 0)
++		obj->lazy_loaded = 1;
++	return 1;
++}
++
++
++
++static int yaffs2_checkpt_tnode_worker(yaffs_obj_t *in, yaffs_tnode_t *tn,
++					__u32 level, int chunk_offset)
++{
++	int i;
++	yaffs_dev_t *dev = in->my_dev;
++	int ok = 1;
++
++	if (tn) {
++		if (level > 0) {
++
++			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) {
++				if (tn->internal[i]) {
++					ok = yaffs2_checkpt_tnode_worker(in,
++							tn->internal[i],
++							level - 1,
++							(chunk_offset<<YAFFS_TNODES_INTERNAL_BITS) + i);
++				}
++			}
++		} else if (level == 0) {
++			__u32 baseOffset = chunk_offset <<  YAFFS_TNODES_LEVEL0_BITS;
++			ok = (yaffs2_checkpt_wr(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset));
++			if (ok)
++				ok = (yaffs2_checkpt_wr(dev, tn, dev->tnode_size) == dev->tnode_size);
++		}
++	}
++
++	return ok;
++
++}
++
++static int yaffs2_wr_checkpt_tnodes(yaffs_obj_t *obj)
++{
++	__u32 endMarker = ~0;
++	int ok = 1;
++
++	if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) {
++		ok = yaffs2_checkpt_tnode_worker(obj,
++					    obj->variant.file_variant.top,
++					    obj->variant.file_variant.top_level,
++					    0);
++		if (ok)
++			ok = (yaffs2_checkpt_wr(obj->my_dev, &endMarker, sizeof(endMarker)) ==
++				sizeof(endMarker));
++	}
++
++	return ok ? 1 : 0;
++}
++
++static int yaffs2_rd_checkpt_tnodes(yaffs_obj_t *obj)
++{
++	__u32 baseChunk;
++	int ok = 1;
++	yaffs_dev_t *dev = obj->my_dev;
++	yaffs_file_s *fileStructPtr = &obj->variant.file_variant;
++	yaffs_tnode_t *tn;
++	int nread = 0;
++
++	ok = (yaffs2_checkpt_rd(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
++
++	while (ok && (~baseChunk)) {
++		nread++;
++		/* Read level 0 tnode */
++
++
++		tn = yaffs_get_tnode(dev);
++		if (tn){
++			ok = (yaffs2_checkpt_rd(dev, tn, dev->tnode_size) == dev->tnode_size);
++		} else
++			ok = 0;
++
++		if (tn && ok)
++			ok = yaffs_add_find_tnode_0(dev,
++							fileStructPtr,
++							baseChunk,
++							tn) ? 1 : 0;
++
++		if (ok)
++			ok = (yaffs2_checkpt_rd(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk));
++
++	}
++
++	T(YAFFS_TRACE_CHECKPOINT, (
++		TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR),
++		nread, baseChunk, ok));
++
++	return ok ? 1 : 0;
++}
++
++
++static int yaffs2_wr_checkpt_objs(yaffs_dev_t *dev)
++{
++	yaffs_obj_t *obj;
++	yaffs_checkpt_obj_t cp;
++	int i;
++	int ok = 1;
++	struct ylist_head *lh;
++
++
++	/* Iterate through the objects in each hash entry,
++	 * dumping them to the checkpointing stream.
++	 */
++
++	for (i = 0; ok &&  i <  YAFFS_NOBJECT_BUCKETS; i++) {
++		ylist_for_each(lh, &dev->obj_bucket[i].list) {
++			if (lh) {
++				obj = ylist_entry(lh, yaffs_obj_t, hash_link);
++				if (!obj->defered_free) {
++					yaffs2_obj_checkpt_obj(&cp, obj);
++					cp.struct_type = sizeof(cp);
++
++					T(YAFFS_TRACE_CHECKPOINT, (
++						TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %p" TENDSTR),
++						cp.obj_id, cp.parent_id, cp.variant_type, cp.hdr_chunk, obj));
++
++					ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp));
++
++					if (ok && obj->variant_type == YAFFS_OBJECT_TYPE_FILE)
++						ok = yaffs2_wr_checkpt_tnodes(obj);
++				}
++			}
++		}
++	}
++
++	/* Dump end of list */
++	memset(&cp, 0xFF, sizeof(yaffs_checkpt_obj_t));
++	cp.struct_type = sizeof(cp);
++
++	if (ok)
++		ok = (yaffs2_checkpt_wr(dev, &cp, sizeof(cp)) == sizeof(cp));
++
++	return ok ? 1 : 0;
++}
++
++static int yaffs2_rd_checkpt_objs(yaffs_dev_t *dev)
++{
++	yaffs_obj_t *obj;
++	yaffs_checkpt_obj_t cp;
++	int ok = 1;
++	int done = 0;
++	yaffs_obj_t *hard_list = NULL;
++
++	while (ok && !done) {
++		ok = (yaffs2_checkpt_rd(dev, &cp, sizeof(cp)) == sizeof(cp));
++		if (cp.struct_type != sizeof(cp)) {
++			T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR),
++				cp.struct_type, (int)sizeof(cp), ok));
++			ok = 0;
++		}
++
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
++			cp.obj_id, cp.parent_id, cp.variant_type, cp.hdr_chunk));
++
++		if (ok && cp.obj_id == ~0)
++			done = 1;
++		else if (ok) {
++			obj = yaffs_find_or_create_by_number(dev, cp.obj_id, cp.variant_type);
++			if (obj) {
++				ok = taffs2_checkpt_obj_to_obj(obj, &cp);
++				if (!ok)
++					break;
++				if (obj->variant_type == YAFFS_OBJECT_TYPE_FILE) {
++					ok = yaffs2_rd_checkpt_tnodes(obj);
++				} else if (obj->variant_type == YAFFS_OBJECT_TYPE_HARDLINK) {
++					obj->hard_links.next =
++						(struct ylist_head *) hard_list;
++					hard_list = obj;
++				}
++			} else
++				ok = 0;
++		}
++	}
++
++	if (ok)
++		yaffs_link_fixup(dev, hard_list);
++
++	return ok ? 1 : 0;
++}
++
++static int yaffs2_wr_checkpt_sum(yaffs_dev_t *dev)
++{
++	__u32 checkpt_sum;
++	int ok;
++
++	yaffs2_get_checkpt_sum(dev, &checkpt_sum);
++
++	ok = (yaffs2_checkpt_wr(dev, &checkpt_sum, sizeof(checkpt_sum)) == sizeof(checkpt_sum));
++
++	if (!ok)
++		return 0;
++
++	return 1;
++}
++
++static int yaffs2_rd_checkpt_sum(yaffs_dev_t *dev)
++{
++	__u32 checkpt_sum0;
++	__u32 checkpt_sum1;
++	int ok;
++
++	yaffs2_get_checkpt_sum(dev, &checkpt_sum0);
++
++	ok = (yaffs2_checkpt_rd(dev, &checkpt_sum1, sizeof(checkpt_sum1)) == sizeof(checkpt_sum1));
++
++	if (!ok)
++		return 0;
++
++	if (checkpt_sum0 != checkpt_sum1)
++		return 0;
++
++	return 1;
++}
++
++
++static int yaffs2_wr_checkpt_data(yaffs_dev_t *dev)
++{
++	int ok = 1;
++
++	if (!yaffs2_checkpt_required(dev)) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR)));
++		ok = 0;
++	}
++
++	if (ok)
++		ok = yaffs2_checkpt_open(dev, 1);
++
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
++		ok = yaffs2_wr_checkpt_validity_marker(dev, 1);
++	}
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR)));
++		ok = yaffs2_wr_checkpt_dev(dev);
++	}
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR)));
++		ok = yaffs2_wr_checkpt_objs(dev);
++	}
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR)));
++		ok = yaffs2_wr_checkpt_validity_marker(dev, 0);
++	}
++
++	if (ok)
++		ok = yaffs2_wr_checkpt_sum(dev);
++
++	if (!yaffs_checkpt_close(dev))
++		ok = 0;
++
++	if (ok)
++		dev->is_checkpointed = 1;
++	else
++		dev->is_checkpointed = 0;
++
++	return dev->is_checkpointed;
++}
++
++static int yaffs2_rd_checkpt_data(yaffs_dev_t *dev)
++{
++	int ok = 1;
++	
++	if(!dev->param.is_yaffs2)
++		ok = 0;
++
++	if (ok && dev->param.skip_checkpt_rd) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR)));
++		ok = 0;
++	}
++
++	if (ok)
++		ok = yaffs2_checkpt_open(dev, 0); /* open for read */
++
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
++		ok = yaffs2_rd_checkpt_validty_marker(dev, 1);
++	}
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR)));
++		ok = yaffs2_rd_checkpt_dev(dev);
++	}
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR)));
++		ok = yaffs2_rd_checkpt_objs(dev);
++	}
++	if (ok) {
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR)));
++		ok = yaffs2_rd_checkpt_validty_marker(dev, 0);
++	}
++
++	if (ok) {
++		ok = yaffs2_rd_checkpt_sum(dev);
++		T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok));
++	}
++
++	if (!yaffs_checkpt_close(dev))
++		ok = 0;
++
++	if (ok)
++		dev->is_checkpointed = 1;
++	else
++		dev->is_checkpointed = 0;
++
++	return ok ? 1 : 0;
++
++}
++
++void yaffs2_checkpt_invalidate(yaffs_dev_t *dev)
++{
++	if (dev->is_checkpointed ||
++			dev->blocks_in_checkpt > 0) {
++		dev->is_checkpointed = 0;
++		yaffs2_checkpt_invalidate_stream(dev);
++	}
++	if (dev->param.sb_dirty_fn)
++		dev->param.sb_dirty_fn(dev);
++}
++
++
++int yaffs_checkpoint_save(yaffs_dev_t *dev)
++{
++
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: is_checkpointed %d"TENDSTR), dev->is_checkpointed));
++
++	yaffs_verify_objects(dev);
++	yaffs_verify_blocks(dev);
++	yaffs_verify_free_chunks(dev);
++
++	if (!dev->is_checkpointed) {
++		yaffs2_checkpt_invalidate(dev);
++		yaffs2_wr_checkpt_data(dev);
++	}
++
++	T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: is_checkpointed %d"TENDSTR), dev->is_checkpointed));
++
++	return dev->is_checkpointed;
++}
++
++int yaffs2_checkpt_restore(yaffs_dev_t *dev)
++{
++	int retval;
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: is_checkpointed %d"TENDSTR), dev->is_checkpointed));
++
++	retval = yaffs2_rd_checkpt_data(dev);
++
++	if (dev->is_checkpointed) {
++		yaffs_verify_objects(dev);
++		yaffs_verify_blocks(dev);
++		yaffs_verify_free_chunks(dev);
++	}
++
++	T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: is_checkpointed %d"TENDSTR), dev->is_checkpointed));
++
++	return retval;
++}
++
++int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size)
++{
++	/* if newsSize > oldFileSize.
++	 * We're going to be writing a hole.
++	 * If the hole is small then write zeros otherwise write a start of hole marker.
++	 */
++		
++
++	loff_t oldFileSize;
++	int increase;
++	int smallHole   ;
++	int result = YAFFS_OK;
++	yaffs_dev_t *dev = NULL;
++
++	__u8 *localBuffer = NULL;
++	
++	int smallIncreaseOk = 0;
++	
++	if(!obj)
++		return YAFFS_FAIL;
++
++	if(obj->variant_type != YAFFS_OBJECT_TYPE_FILE)
++		return YAFFS_FAIL;
++	
++	dev = obj->my_dev;
++	
++	/* Bail out if not yaffs2 mode */
++	if(!dev->param.is_yaffs2)
++		return YAFFS_OK;
++
++	oldFileSize = obj->variant.file_variant.file_size;
++
++	if (new_size <= oldFileSize)
++		return YAFFS_OK;
++
++	increase = new_size - oldFileSize;
++
++	if(increase < YAFFS_SMALL_HOLE_THRESHOLD * dev->data_bytes_per_chunk &&
++		yaffs_check_alloc_available(dev, YAFFS_SMALL_HOLE_THRESHOLD + 1))
++		smallHole = 1;
++	else
++		smallHole = 0;
++
++	if(smallHole)
++		localBuffer= yaffs_get_temp_buffer(dev, __LINE__);
++	
++	if(localBuffer){
++		/* fill hole with zero bytes */
++		int pos = oldFileSize;
++		int thisWrite;
++		int written;
++		memset(localBuffer,0,dev->data_bytes_per_chunk);
++		smallIncreaseOk = 1;
++
++		while(increase > 0 && smallIncreaseOk){
++			thisWrite = increase;
++			if(thisWrite > dev->data_bytes_per_chunk)
++				thisWrite = dev->data_bytes_per_chunk;
++			written = yaffs_do_file_wr(obj,localBuffer,pos,thisWrite,0);
++			if(written == thisWrite){
++				pos += thisWrite;
++				increase -= thisWrite;
++			} else
++				smallIncreaseOk = 0;
++		}
++
++		yaffs_release_temp_buffer(dev,localBuffer,__LINE__);
++
++		/* If we were out of space then reverse any chunks we've added */		
++		if(!smallIncreaseOk)
++			yaffs_resize_file_down(obj, oldFileSize);
++	}
++	
++	if (!smallIncreaseOk &&
++		obj->parent &&
++		obj->parent->obj_id != YAFFS_OBJECTID_UNLINKED &&
++		obj->parent->obj_id != YAFFS_OBJECTID_DELETED){
++		/* Write a hole start header with the old file size */
++		yaffs_update_oh(obj, NULL, 0, 1, 0, NULL);
++	}
++
++	return result;
++
++}
++
++
++typedef struct {
++	int seq;
++	int block;
++} yaffs_BlockIndex;
++
++
++static int yaffs2_ybicmp(const void *a, const void *b)
++{
++	register int aseq = ((yaffs_BlockIndex *)a)->seq;
++	register int bseq = ((yaffs_BlockIndex *)b)->seq;
++	register int ablock = ((yaffs_BlockIndex *)a)->block;
++	register int bblock = ((yaffs_BlockIndex *)b)->block;
++	if (aseq == bseq)
++		return ablock - bblock;
++	else
++		return aseq - bseq;
++}
++
++int yaffs2_scan_backwards(yaffs_dev_t *dev)
++{
++	yaffs_ext_tags tags;
++	int blk;
++	int blockIterator;
++	int startIterator;
++	int endIterator;
++	int nBlocksToScan = 0;
++
++	int chunk;
++	int result;
++	int c;
++	int deleted;
++	yaffs_block_state_t state;
++	yaffs_obj_t *hard_list = NULL;
++	yaffs_block_info_t *bi;
++	__u32 seq_number;
++	yaffs_obj_header *oh;
++	yaffs_obj_t *in;
++	yaffs_obj_t *parent;
++	int nBlocks = dev->internal_end_block - dev->internal_start_block + 1;
++	int itsUnlinked;
++	__u8 *chunkData;
++
++	int file_size;
++	int is_shrink;
++	int foundChunksInBlock;
++	int equiv_id;
++	int alloc_failed = 0;
++
++
++	yaffs_BlockIndex *blockIndex = NULL;
++	int altBlockIndex = 0;
++
++	T(YAFFS_TRACE_SCAN,
++	  (TSTR
++	   ("yaffs2_scan_backwards starts  intstartblk %d intendblk %d..."
++	    TENDSTR), dev->internal_start_block, dev->internal_end_block));
++
++
++	dev->seq_number = YAFFS_LOWEST_SEQUENCE_NUMBER;
++
++	blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
++
++	if (!blockIndex) {
++		blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex));
++		altBlockIndex = 1;
++	}
++
++	if (!blockIndex) {
++		T(YAFFS_TRACE_SCAN,
++		  (TSTR("yaffs2_scan_backwards() could not allocate block index!" TENDSTR)));
++		return YAFFS_FAIL;
++	}
++
++	dev->blocks_in_checkpt = 0;
++
++	chunkData = yaffs_get_temp_buffer(dev, __LINE__);
++
++	/* Scan all the blocks to determine their state */
++	bi = dev->block_info;
++	for (blk = dev->internal_start_block; blk <= dev->internal_end_block; blk++) {
++		yaffs_clear_chunk_bits(dev, blk);
++		bi->pages_in_use = 0;
++		bi->soft_del_pages = 0;
++
++		yaffs_query_init_block_state(dev, blk, &state, &seq_number);
++
++		bi->block_state = state;
++		bi->seq_number = seq_number;
++
++		if (bi->seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA)
++			bi->block_state = state = YAFFS_BLOCK_STATE_CHECKPOINT;
++		if (bi->seq_number == YAFFS_SEQUENCE_BAD_BLOCK)
++			bi->block_state = state = YAFFS_BLOCK_STATE_DEAD;
++
++		T(YAFFS_TRACE_SCAN_DEBUG,
++		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
++		   state, seq_number));
++
++
++		if (state == YAFFS_BLOCK_STATE_CHECKPOINT) {
++			dev->blocks_in_checkpt++;
++
++		} else if (state == YAFFS_BLOCK_STATE_DEAD) {
++			T(YAFFS_TRACE_BAD_BLOCKS,
++			  (TSTR("block %d is bad" TENDSTR), blk));
++		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
++			T(YAFFS_TRACE_SCAN_DEBUG,
++			  (TSTR("Block empty " TENDSTR)));
++			dev->n_erased_blocks++;
++			dev->n_free_chunks += dev->param.chunks_per_block;
++		} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
++
++			/* Determine the highest sequence number */
++			if (seq_number >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
++			    seq_number < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
++
++				blockIndex[nBlocksToScan].seq = seq_number;
++				blockIndex[nBlocksToScan].block = blk;
++
++				nBlocksToScan++;
++
++				if (seq_number >= dev->seq_number)
++					dev->seq_number = seq_number;
++			} else {
++				/* TODO: Nasty sequence number! */
++				T(YAFFS_TRACE_SCAN,
++				  (TSTR
++				   ("Block scanning block %d has bad sequence number %d"
++				    TENDSTR), blk, seq_number));
++
++			}
++		}
++		bi++;
++	}
++
++	T(YAFFS_TRACE_SCAN,
++	(TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan));
++
++
++
++	YYIELD();
++
++	/* Sort the blocks by sequence number*/
++	yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), yaffs2_ybicmp);
++
++	YYIELD();
++
++	T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
++
++	/* Now scan the blocks looking at the data. */
++	startIterator = 0;
++	endIterator = nBlocksToScan - 1;
++	T(YAFFS_TRACE_SCAN_DEBUG,
++	  (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan));
++
++	/* For each block.... backwards */
++	for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator;
++			blockIterator--) {
++		/* Cooperative multitasking! This loop can run for so
++		   long that watchdog timers expire. */
++		YYIELD();
++
++		/* get the block to scan in the correct order */
++		blk = blockIndex[blockIterator].block;
++
++		bi = yaffs_get_block_info(dev, blk);
++
++
++		state = bi->block_state;
++
++		deleted = 0;
++
++		/* For each chunk in each block that needs scanning.... */
++		foundChunksInBlock = 0;
++		for (c = dev->param.chunks_per_block - 1;
++		     !alloc_failed && c >= 0 &&
++		     (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
++		      state == YAFFS_BLOCK_STATE_ALLOCATING); c--) {
++			/* Scan backwards...
++			 * Read the tags and decide what to do
++			 */
++
++			chunk = blk * dev->param.chunks_per_block + c;
++
++			result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL,
++							&tags);
++
++			/* Let's have a good look at this chunk... */
++
++			if (!tags.chunk_used) {
++				/* An unassigned chunk in the block.
++				 * If there are used chunks after this one, then
++				 * it is a chunk that was skipped due to failing the erased
++				 * check. Just skip it so that it can be deleted.
++				 * But, more typically, We get here when this is an unallocated
++				 * chunk and his means that either the block is empty or
++				 * this is the one being allocated from
++				 */
++
++				if (foundChunksInBlock) {
++					/* This is a chunk that was skipped due to failing the erased check */
++				} else if (c == 0) {
++					/* We're looking at the first chunk in the block so the block is unused */
++					state = YAFFS_BLOCK_STATE_EMPTY;
++					dev->n_erased_blocks++;
++				} else {
++					if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
++					    state == YAFFS_BLOCK_STATE_ALLOCATING) {
++						if (dev->seq_number == bi->seq_number) {
++							/* this is the block being allocated from */
++
++							T(YAFFS_TRACE_SCAN,
++							  (TSTR
++							   (" Allocating from %d %d"
++							    TENDSTR), blk, c));
++
++							state = YAFFS_BLOCK_STATE_ALLOCATING;
++							dev->alloc_block = blk;
++							dev->alloc_page = c;
++							dev->alloc_block_finder = blk;
++						} else {
++							/* This is a partially written block that is not
++							 * the current allocation block.
++							 */
++
++							 T(YAFFS_TRACE_SCAN,
++							 (TSTR("Partially written block %d detected" TENDSTR),
++							 blk));
++						}
++					}
++				}
++
++				dev->n_free_chunks++;
++
++			} else if (tags.ecc_result == YAFFS_ECC_RESULT_UNFIXED) {
++				T(YAFFS_TRACE_SCAN,
++				  (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR),
++				  blk, c));
++
++				  dev->n_free_chunks++;
++
++			} else if (tags.obj_id > YAFFS_MAX_OBJECT_ID ||
++				tags.chunk_id > YAFFS_MAX_CHUNK_ID ||
++				(tags.chunk_id > 0 && tags.n_bytes > dev->data_bytes_per_chunk) ||
++				tags.seq_number != bi->seq_number ) {
++				T(YAFFS_TRACE_SCAN,
++				  (TSTR("Chunk (%d:%d) with bad tags:obj = %d, chunk_id = %d, n_bytes = %d, ignored"TENDSTR),
++				  blk, c,tags.obj_id, tags.chunk_id, tags.n_bytes));
++
++				  dev->n_free_chunks++;
++
++			} else if (tags.chunk_id > 0) {
++				/* chunk_id > 0 so it is a data chunk... */
++				unsigned int endpos;
++				__u32 chunkBase =
++				    (tags.chunk_id - 1) * dev->data_bytes_per_chunk;
++
++				foundChunksInBlock = 1;
++
++
++				yaffs_set_chunk_bit(dev, blk, c);
++				bi->pages_in_use++;
++
++				in = yaffs_find_or_create_by_number(dev,
++								      tags.
++								      obj_id,
++								      YAFFS_OBJECT_TYPE_FILE);
++				if (!in) {
++					/* Out of memory */
++					alloc_failed = 1;
++				}
++
++				if (in &&
++				    in->variant_type == YAFFS_OBJECT_TYPE_FILE
++				    && chunkBase < in->variant.file_variant.shrink_size) {
++					/* This has not been invalidated by a resize */
++					if (!yaffs_put_chunk_in_file(in, tags.chunk_id, chunk, -1)) {
++						alloc_failed = 1;
++					}
++
++					/* File size is calculated by looking at the data chunks if we have not
++					 * seen an object header yet. Stop this practice once we find an object header.
++					 */
++					endpos = chunkBase + tags.n_bytes;
++
++					if (!in->valid &&	/* have not got an object header yet */
++					    in->variant.file_variant.scanned_size < endpos) {
++						in->variant.file_variant.scanned_size = endpos;
++						in->variant.file_variant.file_size = endpos;
++					}
++
++				} else if (in) {
++					/* This chunk has been invalidated by a resize, or a past file deletion
++					 * so delete the chunk*/
++					yaffs_chunk_del(dev, chunk, 1, __LINE__);
++
++				}
++			} else {
++				/* chunk_id == 0, so it is an ObjectHeader.
++				 * Thus, we read in the object header and make the object
++				 */
++				foundChunksInBlock = 1;
++
++				yaffs_set_chunk_bit(dev, blk, c);
++				bi->pages_in_use++;
++
++				oh = NULL;
++				in = NULL;
++
++				if (tags.extra_available) {
++					in = yaffs_find_or_create_by_number(dev,
++						tags.obj_id,
++						tags.extra_obj_type);
++					if (!in)
++						alloc_failed = 1;
++				}
++
++				if (!in ||
++				    (!in->valid && dev->param.disable_lazy_load) ||
++				    tags.extra_shadows ||
++				    (!in->valid &&
++				    (tags.obj_id == YAFFS_OBJECTID_ROOT ||
++				     tags.obj_id == YAFFS_OBJECTID_LOSTNFOUND))) {
++
++					/* If we don't have  valid info then we need to read the chunk
++					 * TODO In future we can probably defer reading the chunk and
++					 * living with invalid data until needed.
++					 */
++
++					result = yaffs_rd_chunk_tags_nand(dev,
++									chunk,
++									chunkData,
++									NULL);
++
++					oh = (yaffs_obj_header *) chunkData;
++
++					if (dev->param.inband_tags) {
++						/* Fix up the header if they got corrupted by inband tags */
++						oh->shadows_obj = oh->inband_shadowed_obj_id;
++						oh->is_shrink = oh->inband_is_shrink;
++					}
++
++					if (!in) {
++						in = yaffs_find_or_create_by_number(dev, tags.obj_id, oh->type);
++						if (!in)
++							alloc_failed = 1;
++					}
++
++				}
++
++				if (!in) {
++					/* TODO Hoosterman we have a problem! */
++					T(YAFFS_TRACE_ERROR,
++					  (TSTR
++					   ("yaffs tragedy: Could not make object for object  %d at chunk %d during scan"
++					    TENDSTR), tags.obj_id, chunk));
++					continue;
++				}
++
++				if (in->valid) {
++					/* We have already filled this one.
++					 * We have a duplicate that will be discarded, but
++					 * we first have to suck out resize info if it is a file.
++					 */
++
++					if ((in->variant_type == YAFFS_OBJECT_TYPE_FILE) &&
++					     ((oh &&
++					       oh->type == YAFFS_OBJECT_TYPE_FILE) ||
++					      (tags.extra_available  &&
++					       tags.extra_obj_type == YAFFS_OBJECT_TYPE_FILE))) {
++						__u32 thisSize =
++						    (oh) ? oh->file_size : tags.
++						    extra_length;
++						__u32 parent_obj_id =
++						    (oh) ? oh->
++						    parent_obj_id : tags.
++						    extra_parent_id;
++
++
++						is_shrink =
++						    (oh) ? oh->is_shrink : tags.
++						    extra_is_shrink;
++
++						/* If it is deleted (unlinked at start also means deleted)
++						 * we treat the file size as being zeroed at this point.
++						 */
++						if (parent_obj_id ==
++						    YAFFS_OBJECTID_DELETED
++						    || parent_obj_id ==
++						    YAFFS_OBJECTID_UNLINKED) {
++							thisSize = 0;
++							is_shrink = 1;
++						}
++
++						if (is_shrink && in->variant.file_variant.shrink_size > thisSize)
++							in->variant.file_variant.shrink_size = thisSize;
++
++						if (is_shrink)
++							bi->has_shrink_hdr = 1;
++
++					}
++					/* Use existing - destroy this one. */
++					yaffs_chunk_del(dev, chunk, 1, __LINE__);
++
++				}
++
++				if (!in->valid && in->variant_type !=
++				    (oh ? oh->type : tags.extra_obj_type))
++					T(YAFFS_TRACE_ERROR, (
++						TSTR("yaffs tragedy: Bad object type, "
++					    TCONT("%d != %d, for object %d at chunk ")
++					    TCONT("%d during scan")
++						TENDSTR), oh ?
++					    oh->type : tags.extra_obj_type,
++					    in->variant_type, tags.obj_id,
++					    chunk));
++
++				if (!in->valid &&
++				    (tags.obj_id == YAFFS_OBJECTID_ROOT ||
++				     tags.obj_id ==
++				     YAFFS_OBJECTID_LOSTNFOUND)) {
++					/* We only load some info, don't fiddle with directory structure */
++					in->valid = 1;
++
++					if (oh) {
++
++						in->yst_mode = oh->yst_mode;
++#ifdef CONFIG_YAFFS_WINCE
++						in->win_atime[0] = oh->win_atime[0];
++						in->win_ctime[0] = oh->win_ctime[0];
++						in->win_mtime[0] = oh->win_mtime[0];
++						in->win_atime[1] = oh->win_atime[1];
++						in->win_ctime[1] = oh->win_ctime[1];
++						in->win_mtime[1] = oh->win_mtime[1];
++#else
++						in->yst_uid = oh->yst_uid;
++						in->yst_gid = oh->yst_gid;
++						in->yst_atime = oh->yst_atime;
++						in->yst_mtime = oh->yst_mtime;
++						in->yst_ctime = oh->yst_ctime;
++						in->yst_rdev = oh->yst_rdev;
++
++						in->lazy_loaded = 0;
++
++#endif
++					} else
++						in->lazy_loaded = 1;
++
++					in->hdr_chunk = chunk;
++
++				} else if (!in->valid) {
++					/* we need to load this info */
++
++					in->valid = 1;
++					in->hdr_chunk = chunk;
++
++					if (oh) {
++						in->variant_type = oh->type;
++
++						in->yst_mode = oh->yst_mode;
++#ifdef CONFIG_YAFFS_WINCE
++						in->win_atime[0] = oh->win_atime[0];
++						in->win_ctime[0] = oh->win_ctime[0];
++						in->win_mtime[0] = oh->win_mtime[0];
++						in->win_atime[1] = oh->win_atime[1];
++						in->win_ctime[1] = oh->win_ctime[1];
++						in->win_mtime[1] = oh->win_mtime[1];
++#else
++						in->yst_uid = oh->yst_uid;
++						in->yst_gid = oh->yst_gid;
++						in->yst_atime = oh->yst_atime;
++						in->yst_mtime = oh->yst_mtime;
++						in->yst_ctime = oh->yst_ctime;
++						in->yst_rdev = oh->yst_rdev;
++#endif
++
++						if (oh->shadows_obj > 0)
++							yaffs_handle_shadowed_obj(dev,
++									   oh->
++									   shadows_obj,
++									   1);
++							
++
++
++						yaffs_set_obj_name_from_oh(in, oh);
++						parent =
++						    yaffs_find_or_create_by_number
++							(dev, oh->parent_obj_id,
++							 YAFFS_OBJECT_TYPE_DIRECTORY);
++
++						 file_size = oh->file_size;
++						 is_shrink = oh->is_shrink;
++						 equiv_id = oh->equiv_id;
++
++					} else {
++						in->variant_type = tags.extra_obj_type;
++						parent =
++						    yaffs_find_or_create_by_number
++							(dev, tags.extra_parent_id,
++							 YAFFS_OBJECT_TYPE_DIRECTORY);
++						 file_size = tags.extra_length;
++						 is_shrink = tags.extra_is_shrink;
++						 equiv_id = tags.extra_equiv_id;
++						in->lazy_loaded = 1;
++
++					}
++					in->dirty = 0;
++
++					if (!parent)
++						alloc_failed = 1;
++
++					/* directory stuff...
++					 * hook up to parent
++					 */
++
++					if (parent && parent->variant_type ==
++					    YAFFS_OBJECT_TYPE_UNKNOWN) {
++						/* Set up as a directory */
++						parent->variant_type =
++							YAFFS_OBJECT_TYPE_DIRECTORY;
++						YINIT_LIST_HEAD(&parent->variant.
++							dir_variant.
++							children);
++					} else if (!parent || parent->variant_type !=
++						   YAFFS_OBJECT_TYPE_DIRECTORY) {
++						/* Hoosterman, another problem....
++						 * We're trying to use a non-directory as a directory
++						 */
++
++						T(YAFFS_TRACE_ERROR,
++						  (TSTR
++						   ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found."
++						    TENDSTR)));
++						parent = dev->lost_n_found;
++					}
++
++					yaffs_add_obj_to_dir(parent, in);
++
++					itsUnlinked = (parent == dev->del_dir) ||
++						      (parent == dev->unlinked_dir);
++
++					if (is_shrink) {
++						/* Mark the block as having a shrinkHeader */
++						bi->has_shrink_hdr = 1;
++					}
++
++					/* Note re hardlinks.
++					 * Since we might scan a hardlink before its equivalent object is scanned
++					 * we put them all in a list.
++					 * After scanning is complete, we should have all the objects, so we run
++					 * through this list and fix up all the chains.
++					 */
++
++					switch (in->variant_type) {
++					case YAFFS_OBJECT_TYPE_UNKNOWN:
++						/* Todo got a problem */
++						break;
++					case YAFFS_OBJECT_TYPE_FILE:
++
++						if (in->variant.file_variant.
++						    scanned_size < file_size) {
++							/* This covers the case where the file size is greater
++							 * than where the data is
++							 * This will happen if the file is resized to be larger
++							 * than its current data extents.
++							 */
++							in->variant.file_variant.file_size = file_size;
++							in->variant.file_variant.scanned_size = file_size;
++						}
++
++						if (in->variant.file_variant.shrink_size > file_size)
++							in->variant.file_variant.shrink_size = file_size;
++				
++
++						break;
++					case YAFFS_OBJECT_TYPE_HARDLINK:
++						if (!itsUnlinked) {
++							in->variant.hardlink_variant.equiv_id =
++								equiv_id;
++							in->hard_links.next =
++								(struct ylist_head *) hard_list;
++							hard_list = in;
++						}
++						break;
++					case YAFFS_OBJECT_TYPE_DIRECTORY:
++						/* Do nothing */
++						break;
++					case YAFFS_OBJECT_TYPE_SPECIAL:
++						/* Do nothing */
++						break;
++					case YAFFS_OBJECT_TYPE_SYMLINK:
++						if (oh) {
++							in->variant.symlink_variant.alias =
++								yaffs_clone_str(oh->alias);
++							if (!in->variant.symlink_variant.alias)
++								alloc_failed = 1;
++						}
++						break;
++					}
++
++				}
++
++			}
++
++		} /* End of scanning for each chunk */
++
++		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
++			/* If we got this far while scanning, then the block is fully allocated. */
++			state = YAFFS_BLOCK_STATE_FULL;
++		}
++
++
++		bi->block_state = state;
++
++		/* Now let's see if it was dirty */
++		if (bi->pages_in_use == 0 &&
++		    !bi->has_shrink_hdr &&
++		    bi->block_state == YAFFS_BLOCK_STATE_FULL) {
++			yaffs_block_became_dirty(dev, blk);
++		}
++
++	}
++	
++	yaffs_skip_rest_of_block(dev);
++
++	if (altBlockIndex)
++		YFREE_ALT(blockIndex);
++	else
++		YFREE(blockIndex);
++
++	/* Ok, we've done all the scanning.
++	 * Fix up the hard link chains.
++	 * We should now have scanned all the objects, now it's time to add these
++	 * hardlinks.
++	 */
++	yaffs_link_fixup(dev, hard_list);
++
++
++	yaffs_release_temp_buffer(dev, chunkData, __LINE__);
++
++	if (alloc_failed)
++		return YAFFS_FAIL;
++
++	T(YAFFS_TRACE_SCAN, (TSTR("yaffs2_scan_backwards ends" TENDSTR)));
++
++	return YAFFS_OK;
++}
+--- /dev/null
++++ b/fs/yaffs2/yaffs_yaffs2.h
+@@ -0,0 +1,36 @@
++/*
++ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
++ *
++ * Copyright (C) 2002-2010 Aleph One Ltd.
++ *   for Toby Churchill Ltd and Brightstar Engineering
++ *
++ * Created by Charles Manning <charles@aleph1.co.uk>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#ifndef __YAFFS_YAFFS2_H__
++#define __YAFFS_YAFFS2_H__
++
++#include "yaffs_guts.h"
++
++void yaffs_calc_oldest_dirty_seq(yaffs_dev_t *dev);
++void yaffs2_find_oldest_dirty_seq(yaffs_dev_t *dev);
++void yaffs2_clear_oldest_dirty_seq(yaffs_dev_t *dev, yaffs_block_info_t *bi);
++void yaffs2_update_oldest_dirty_seq(yaffs_dev_t *dev, unsigned block_no, yaffs_block_info_t *bi);
++int yaffs_block_ok_for_gc(yaffs_dev_t *dev, yaffs_block_info_t *bi);
++__u32 yaffs2_find_refresh_block(yaffs_dev_t *dev);
++int yaffs2_checkpt_required(yaffs_dev_t *dev);
++int yaffs_calc_checkpt_blocks_required(yaffs_dev_t *dev);
++
++
++void yaffs2_checkpt_invalidate(yaffs_dev_t *dev);
++int yaffs2_checkpt_save(yaffs_dev_t *dev);
++int yaffs2_checkpt_restore(yaffs_dev_t *dev);
++
++int yaffs2_handle_hole(yaffs_obj_t *obj, loff_t new_size);
++int yaffs2_scan_backwards(yaffs_dev_t *dev);
++
++#endif
+--- a/fs/yaffs2/yportenv.h
++++ b/fs/yaffs2/yportenv.h
+@@ -1,7 +1,7 @@
+ /*
+  * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+  *
+- * Copyright (C) 2002-2007 Aleph One Ltd.
++ * Copyright (C) 2002-2010 Aleph One Ltd.
+  *   for Toby Churchill Ltd and Brightstar Engineering
+  *
+  * Created by Charles Manning <charles@aleph1.co.uk>
+@@ -41,12 +41,14 @@
+ #if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19))
+ #include <linux/config.h>
+ #endif
++
+ #include <linux/kernel.h>
+ #include <linux/mm.h>
+ #include <linux/sched.h>
+ #include <linux/string.h>
+ #include <linux/slab.h>
+ #include <linux/vmalloc.h>
++#include <linux/xattr.h>
+ 
+ #define YCHAR char
+ #define YUCHAR unsigned char
+@@ -55,11 +57,11 @@
+ #define yaffs_strcpy(a, b)     strcpy(a, b)
+ #define yaffs_strncpy(a, b, c) strncpy(a, b, c)
+ #define yaffs_strncmp(a, b, c) strncmp(a, b, c)
+-#define yaffs_strlen(s)	       strlen(s)
++#define yaffs_strnlen(s,m)	strnlen(s,m)
+ #define yaffs_sprintf	       sprintf
+ #define yaffs_toupper(a)       toupper(a)
+ 
+-#define Y_INLINE inline
++#define Y_INLINE __inline__
+ 
+ #define YAFFS_LOSTNFOUND_NAME		"lost+found"
+ #define YAFFS_LOSTNFOUND_PREFIX		"obj"
+@@ -71,11 +73,11 @@
+ #define YFREE_ALT(x)   vfree(x)
+ #define YMALLOC_DMA(x) YMALLOC(x)
+ 
+-/* KR - added for use in scan so processes aren't blocked indefinitely. */
+ #define YYIELD() schedule()
++#define Y_DUMP_STACK() dump_stack()
+ 
+-#define YAFFS_ROOT_MODE			0666
+-#define YAFFS_LOSTNFOUND_MODE		0666
++#define YAFFS_ROOT_MODE			0755
++#define YAFFS_LOSTNFOUND_MODE		0700
+ 
+ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0))
+ #define Y_CURRENT_TIME CURRENT_TIME.tv_sec
+@@ -85,19 +87,14 @@
+ #define Y_TIME_CONVERT(x) (x)
+ #endif
+ 
+-#define yaffs_SumCompare(x, y) ((x) == (y))
++#define yaffs_sum_cmp(x, y) ((x) == (y))
+ #define yaffs_strcmp(a, b) strcmp(a, b)
+ 
+ #define TENDSTR "\n"
+-#define TSTR(x) KERN_WARNING x
++#define TSTR(x) KERN_DEBUG x
+ #define TCONT(x) x
+ #define TOUT(p) printk p
+ 
+-#define yaffs_trace(mask, fmt, args...) \
+-	do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \
+-		printk(KERN_WARNING "yaffs: " fmt, ## args); \
+-	} while (0)
+-
+ #define compile_time_assertion(assertion) \
+ 	({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; })
+ 
+@@ -116,7 +113,6 @@
+ #include "stdio.h"
+ #include "string.h"
+ 
+-#include "devextras.h"
+ 
+ #define YMALLOC(x) malloc(x)
+ #define YFREE(x)   free(x)
+@@ -129,7 +125,7 @@
+ #define yaffs_strcat(a, b)     strcat(a, b)
+ #define yaffs_strcpy(a, b)     strcpy(a, b)
+ #define yaffs_strncpy(a, b, c) strncpy(a, b, c)
+-#define yaffs_strlen(s)	       strlen(s)
++#define yaffs_strnlen(s,m)	       strnlen(s,m)
+ #define yaffs_sprintf	       sprintf
+ #define yaffs_toupper(a)       toupper(a)
+ 
+@@ -146,10 +142,10 @@
+ #define YAFFS_LOSTNFOUND_PREFIX		"obj"
+ /* #define YPRINTF(x) printf x */
+ 
+-#define YAFFS_ROOT_MODE				0666
+-#define YAFFS_LOSTNFOUND_MODE		0666
++#define YAFFS_ROOT_MODE			0755
++#define YAFFS_LOSTNFOUND_MODE		0700
+ 
+-#define yaffs_SumCompare(x, y) ((x) == (y))
++#define yaffs_sum_cmp(x, y) ((x) == (y))
+ #define yaffs_strcmp(a, b) strcmp(a, b)
+ 
+ #else
+@@ -158,46 +154,180 @@
+ 
+ #endif
+ 
+-/* see yaffs_fs.c */
+-extern unsigned int yaffs_traceMask;
+-extern unsigned int yaffs_wr_attempts;
++#if defined(CONFIG_YAFFS_DIRECT) || defined(CONFIG_YAFFS_WINCE)
+ 
+-/*
+- * Tracing flags.
+- * The flags masked in YAFFS_TRACE_ALWAYS are always traced.
+- */
++#ifdef CONFIG_YAFFSFS_PROVIDE_VALUES
++
++#ifndef O_RDONLY
++#define O_RDONLY        00
++#endif
++
++#ifndef O_WRONLY
++#define O_WRONLY	01
++#endif
++
++#ifndef O_RDWR
++#define O_RDWR		02
++#endif
++
++#ifndef O_CREAT		
++#define O_CREAT 	0100
++#endif
++
++#ifndef O_EXCL
++#define O_EXCL		0200
++#endif
++
++#ifndef O_TRUNC
++#define O_TRUNC		01000
++#endif
++
++#ifndef O_APPEND
++#define O_APPEND	02000
++#endif
++
++#ifndef SEEK_SET
++#define SEEK_SET	0
++#endif
++
++#ifndef SEEK_CUR
++#define SEEK_CUR	1
++#endif
++
++#ifndef SEEK_END
++#define SEEK_END	2
++#endif
++
++#ifndef EBUSY
++#define EBUSY	16
++#endif
++
++#ifndef ENODEV
++#define ENODEV	19
++#endif
++
++#ifndef EINVAL
++#define EINVAL	22
++#endif
++
++#ifndef EBADF
++#define EBADF	9
++#endif
++
++#ifndef EACCES
++#define EACCES	13
++#endif
++
++#ifndef EXDEV	
++#define EXDEV	18
++#endif
++
++#ifndef ENOENT
++#define ENOENT	2
++#endif
++
++#ifndef ENOSPC
++#define ENOSPC	28
++#endif
++
++#ifndef ERANGE
++#define ERANGE 34
++#endif
++
++#ifndef ENODATA
++#define ENODATA 61
++#endif
++
++#ifndef ENOTEMPTY
++#define ENOTEMPTY 39
++#endif
++
++#ifndef ENAMETOOLONG
++#define ENAMETOOLONG 36
++#endif
++
++#ifndef ENOMEM
++#define ENOMEM 12
++#endif
++
++#ifndef EEXIST
++#define EEXIST 17
++#endif
++
++#ifndef ENOTDIR
++#define ENOTDIR 20
++#endif
++
++#ifndef EISDIR
++#define EISDIR 21
++#endif
++
++
++// Mode flags
++
++#ifndef S_IFMT
++#define S_IFMT		0170000
++#endif
++
++#ifndef S_IFLNK
++#define S_IFLNK		0120000
++#endif
+ 
+-#define YAFFS_TRACE_OS			0x00000002
+-#define YAFFS_TRACE_ALLOCATE		0x00000004
+-#define YAFFS_TRACE_SCAN		0x00000008
+-#define YAFFS_TRACE_BAD_BLOCKS		0x00000010
+-#define YAFFS_TRACE_ERASE		0x00000020
+-#define YAFFS_TRACE_GC			0x00000040
+-#define YAFFS_TRACE_WRITE		0x00000080
+-#define YAFFS_TRACE_TRACING		0x00000100
+-#define YAFFS_TRACE_DELETION		0x00000200
+-#define YAFFS_TRACE_BUFFERS		0x00000400
+-#define YAFFS_TRACE_NANDACCESS		0x00000800
+-#define YAFFS_TRACE_GC_DETAIL		0x00001000
+-#define YAFFS_TRACE_SCAN_DEBUG		0x00002000
+-#define YAFFS_TRACE_MTD			0x00004000
+-#define YAFFS_TRACE_CHECKPOINT		0x00008000
+-
+-#define YAFFS_TRACE_VERIFY		0x00010000
+-#define YAFFS_TRACE_VERIFY_NAND		0x00020000
+-#define YAFFS_TRACE_VERIFY_FULL		0x00040000
+-#define YAFFS_TRACE_VERIFY_ALL		0x000F0000
+-
+-
+-#define YAFFS_TRACE_ERROR		0x40000000
+-#define YAFFS_TRACE_BUG			0x80000000
+-#define YAFFS_TRACE_ALWAYS		0xF0000000
++#ifndef S_IFDIR
++#define S_IFDIR		0040000
++#endif
++
++#ifndef S_IFREG
++#define S_IFREG		0100000
++#endif
+ 
++#ifndef S_IREAD 
++#define S_IREAD		0000400
++#endif
++
++#ifndef S_IWRITE
++#define	S_IWRITE	0000200
++#endif
+ 
+-#define T(mask, p) do { if ((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p); } while (0)
++#ifndef S_IEXEC
++#define	S_IEXEC	0000100
++#endif
++
++#ifndef XATTR_CREATE
++#define XATTR_CREATE 1
++#endif
++
++#ifndef XATTR_REPLACE
++#define XATTR_REPLACE 2
++#endif
++
++#ifndef R_OK
++#define R_OK	4
++#define W_OK	2
++#define X_OK	1
++#define F_OK	0
++#endif
++
++#else
++#include <errno.h>
++#include <sys/stat.h>
++#include <fcntl.h>
++#endif
++
++#endif
++
++#ifndef Y_DUMP_STACK
++#define Y_DUMP_STACK() do { } while (0)
++#endif
+ 
+ #ifndef YBUG
+-#define YBUG() do {T(YAFFS_TRACE_BUG, (TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR), __LINE__)); } while (0)
++#define YBUG() do {\
++	T(YAFFS_TRACE_BUG,\
++		(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\
++		__LINE__));\
++	Y_DUMP_STACK();\
++} while (0)
+ #endif
+ 
++
+ #endif
diff --git a/target/linux/generic/patches-2.6.38/512-yaffs_symlink_bug.patch b/target/linux/generic/patches-2.6.38/512-yaffs_symlink_bug.patch
new file mode 100644
index 0000000000..dabf2871bf
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/512-yaffs_symlink_bug.patch
@@ -0,0 +1,17 @@
+--- a/fs/yaffs2/yaffs_guts.c
++++ b/fs/yaffs2/yaffs_guts.c
+@@ -1709,11 +1709,11 @@ static int yaffs_change_obj_name(yaffs_o
+ 	}
+ 
+ 	/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
+-	if (obj->my_dev->param.is_yaffs2)
++	// if (obj->my_dev->param.is_yaffs2) 
+ 		unlinkOp = (new_dir == obj->my_dev->unlinked_dir);
+-	else
++	/* else
+ 		unlinkOp = (new_dir == obj->my_dev->unlinked_dir
+-			    && obj->variant_type == YAFFS_OBJECT_TYPE_FILE);
++			    && obj->variant_type == YAFFS_OBJECT_TYPE_FILE); */
+ 
+ 	deleteOp = (new_dir == obj->my_dev->del_dir);
+ 
diff --git a/target/linux/generic/patches-2.6.38/513-yaffs_mutex_fix.patch b/target/linux/generic/patches-2.6.38/513-yaffs_mutex_fix.patch
new file mode 100644
index 0000000000..b34b12f785
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/513-yaffs_mutex_fix.patch
@@ -0,0 +1,20 @@
+--- a/fs/yaffs2/yaffs_vfs_glue.c
++++ b/fs/yaffs2/yaffs_vfs_glue.c
+@@ -3036,7 +3036,7 @@ static struct super_block *yaffs_interna
+         YINIT_LIST_HEAD(&(yaffs_dev_to_lc(dev)->searchContexts));
+         param->remove_obj_fn = yaffs_remove_obj_callback;
+ 
+-	init_MUTEX(&(yaffs_dev_to_lc(dev)->grossLock));
++	sema_init(&(yaffs_dev_to_lc(dev)->grossLock), 1);
+ 
+ 	yaffs_gross_lock(dev);
+ 
+@@ -3494,7 +3494,7 @@ static int __init init_yaffs_fs(void)
+ 
+ 
+ 
+-	init_MUTEX(&yaffs_context_lock);
++	sema_init((&yaffs_context_lock), 1);
+ 
+ 	/* Install the proc_fs entries */
+ 	my_proc_entry = create_proc_entry("yaffs",
diff --git a/target/linux/generic/patches-2.6.38/600-phy_extension.patch b/target/linux/generic/patches-2.6.38/600-phy_extension.patch
new file mode 100644
index 0000000000..a0624d849e
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/600-phy_extension.patch
@@ -0,0 +1,81 @@
+--- a/drivers/net/phy/phy.c
++++ b/drivers/net/phy/phy.c
+@@ -297,6 +297,50 @@ int phy_ethtool_gset(struct phy_device *
+ }
+ EXPORT_SYMBOL(phy_ethtool_gset);
+ 
++int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr)
++{
++	u32 cmd;
++	int tmp;
++	struct ethtool_cmd ecmd = { ETHTOOL_GSET };
++	struct ethtool_value edata = { ETHTOOL_GLINK };
++
++	if (get_user(cmd, (u32 *) useraddr))
++		return -EFAULT;
++
++	switch (cmd) {
++	case ETHTOOL_GSET:
++		phy_ethtool_gset(phydev, &ecmd);
++		if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
++			return -EFAULT;
++		return 0;
++
++	case ETHTOOL_SSET:
++		if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
++			return -EFAULT;
++		return phy_ethtool_sset(phydev, &ecmd);
++
++	case ETHTOOL_NWAY_RST:
++		/* if autoneg is off, it's an error */
++		tmp = phy_read(phydev, MII_BMCR);
++		if (tmp & BMCR_ANENABLE) {
++			tmp |= (BMCR_ANRESTART);
++			phy_write(phydev, MII_BMCR, tmp);
++			return 0;
++		}
++		return -EINVAL;
++
++	case ETHTOOL_GLINK:
++		edata.data = (phy_read(phydev,
++				MII_BMSR) & BMSR_LSTATUS) ? 1 : 0;
++		if (copy_to_user(useraddr, &edata, sizeof(edata)))
++			return -EFAULT;
++		return 0;
++	}
++
++	return -EOPNOTSUPP;
++}
++EXPORT_SYMBOL(phy_ethtool_ioctl);
++
+ /**
+  * phy_mii_ioctl - generic PHY MII ioctl interface
+  * @phydev: the phy_device struct
+@@ -351,7 +395,7 @@ int phy_mii_ioctl(struct phy_device *phy
+ 		}
+ 
+ 		phy_write(phydev, mii_data->reg_num, val);
+-		
++
+ 		if (mii_data->reg_num == MII_BMCR &&
+ 		    val & BMCR_RESET &&
+ 		    phydev->drv->config_init) {
+@@ -470,7 +514,7 @@ static void phy_force_reduction(struct p
+ 	int idx;
+ 
+ 	idx = phy_find_setting(phydev->speed, phydev->duplex);
+-	
++
+ 	idx++;
+ 
+ 	idx = phy_find_valid(idx, phydev->supported);
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -508,6 +508,7 @@ void phy_start_machine(struct phy_device
+ void phy_stop_machine(struct phy_device *phydev);
+ int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
+ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
++int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr);
+ int phy_mii_ioctl(struct phy_device *phydev,
+ 		struct ifreq *ifr, int cmd);
+ int phy_start_interrupts(struct phy_device *phydev);
diff --git a/target/linux/generic/patches-2.6.38/601-phy-add-aneg-done-function.patch b/target/linux/generic/patches-2.6.38/601-phy-add-aneg-done-function.patch
new file mode 100644
index 0000000000..f37baad729
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/601-phy-add-aneg-done-function.patch
@@ -0,0 +1,45 @@
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -386,9 +386,18 @@ struct phy_driver {
+ 	 */
+ 	int (*config_aneg)(struct phy_device *phydev);
+ 
++	/* Determine if autonegotiation is done */
++	int (*aneg_done)(struct phy_device *phydev);
++
+ 	/* Determines the negotiated speed and duplex */
+ 	int (*read_status)(struct phy_device *phydev);
+ 
++	/* 
++	 * Update the value in phydev->link to reflect the 
++	 * current link value
++	 */
++	int (*update_link)(struct phy_device *phydev);
++
+ 	/* Clears any pending interrupts */
+ 	int (*ack_interrupt)(struct phy_device *phydev);
+ 
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -715,6 +715,9 @@ int genphy_update_link(struct phy_device
+ {
+ 	int status;
+ 
++	if (phydev->drv->update_link)
++		return phydev->drv->update_link(phydev);
++
+ 	/* Do a fake read */
+ 	status = phy_read(phydev, MII_BMSR);
+ 
+--- a/drivers/net/phy/phy.c
++++ b/drivers/net/phy/phy.c
+@@ -106,6 +106,9 @@ static inline int phy_aneg_done(struct p
+ {
+ 	int retval;
+ 
++	if (phydev->drv->aneg_done)
++		return phydev->drv->aneg_done(phydev);
++
+ 	retval = phy_read(phydev, MII_BMSR);
+ 
+ 	return (retval < 0) ? retval : (retval & BMSR_ANEGCOMPLETE);
diff --git a/target/linux/generic/patches-2.6.38/620-phy_adm6996.patch b/target/linux/generic/patches-2.6.38/620-phy_adm6996.patch
new file mode 100644
index 0000000000..bd387d1bc7
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/620-phy_adm6996.patch
@@ -0,0 +1,24 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -92,6 +92,11 @@ config MICREL_PHY
+ 	---help---
+ 	  Supports the KSZ9021, VSC8201, KS8001 PHYs.
+ 
++config ADM6996_PHY
++	tristate "Driver for ADM6996 switches"
++	---help---
++	  Currently supports the ADM6996F switch
++
+ config FIXED_PHY
+ 	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+ 	depends on PHYLIB=y
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -13,6 +13,7 @@ obj-$(CONFIG_VITESSE_PHY)	+= vitesse.o
+ obj-$(CONFIG_BROADCOM_PHY)	+= broadcom.o
+ obj-$(CONFIG_BCM63XX_PHY)	+= bcm63xx.o
+ obj-$(CONFIG_ICPLUS_PHY)	+= icplus.o
++obj-$(CONFIG_ADM6996_PHY)	+= adm6996.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
+ obj-$(CONFIG_LSI_ET1011C_PHY)	+= et1011c.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
diff --git a/target/linux/generic/patches-2.6.38/630-phy_packets.patch b/target/linux/generic/patches-2.6.38/630-phy_packets.patch
new file mode 100644
index 0000000000..640a19bb00
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/630-phy_packets.patch
@@ -0,0 +1,63 @@
+--- a/drivers/net/phy/phy_device.c
++++ b/drivers/net/phy/phy_device.c
+@@ -149,6 +149,18 @@ int phy_scan_fixups(struct phy_device *p
+ }
+ EXPORT_SYMBOL(phy_scan_fixups);
+ 
++static int generic_receive_skb(struct sk_buff *skb)
++{
++	skb->protocol = eth_type_trans(skb, skb->dev);
++	return netif_receive_skb(skb);
++}
++
++static int generic_rx(struct sk_buff *skb)
++{
++	skb->protocol = eth_type_trans(skb, skb->dev);
++	return netif_rx(skb);
++}
++
+ static struct phy_device* phy_device_create(struct mii_bus *bus,
+ 					    int addr, int phy_id)
+ {
+@@ -180,6 +192,8 @@ static struct phy_device* phy_device_cre
+ 	dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr);
+ 
+ 	dev->state = PHY_DOWN;
++	dev->netif_receive_skb = &generic_receive_skb;
++	dev->netif_rx = &generic_rx;
+ 
+ 	mutex_init(&dev->lock);
+ 	INIT_DELAYED_WORK(&dev->state_queue, phy_state_machine);
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -332,6 +332,20 @@ struct phy_device {
+ 	void (*adjust_link)(struct net_device *dev);
+ 
+ 	void (*adjust_state)(struct net_device *dev);
++
++	/*
++	 * By default these point to the original functions
++	 * with the same name. adding them to the phy_device
++	 * allows the phy driver to override them for packet
++	 * mangling if the ethernet driver supports it
++	 * This is required to support some really horrible
++	 * switches such as the Marvell 88E6060
++	 */
++	int (*netif_receive_skb)(struct sk_buff *skb);
++	int (*netif_rx)(struct sk_buff *skb);
++
++	/* alignment offset for packets */
++	int pkt_align;
+ };
+ #define to_phy_device(d) container_of(d, struct phy_device, dev)
+ 
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -1003,6 +1003,7 @@ struct net_device {
+ 	void			*ax25_ptr;	/* AX.25 specific data */
+ 	struct wireless_dev	*ieee80211_ptr;	/* IEEE 802.11 specific data,
+ 						   assign before registering */
++	void			*phy_ptr; /* PHY device specific data */
+ 
+ /*
+  * Cache lines mostly used on receive path (including eth_type_trans())
diff --git a/target/linux/generic/patches-2.6.38/650-swconfig.patch b/target/linux/generic/patches-2.6.38/650-swconfig.patch
new file mode 100644
index 0000000000..6825037ce9
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/650-swconfig.patch
@@ -0,0 +1,25 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -13,6 +13,12 @@ menuconfig PHYLIB
+ 
+ if PHYLIB
+ 
++config SWCONFIG
++	tristate "Switch configuration API"
++	---help---
++	  Switch configuration API using netlink. This allows
++	  you to configure the VLAN features of certain switches.
++
+ comment "MII PHY device drivers"
+ 
+ config MARVELL_PHY
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -3,6 +3,7 @@
+ libphy-objs			:= phy.o phy_device.o mdio_bus.o
+ 
+ obj-$(CONFIG_PHYLIB)		+= libphy.o
++obj-$(CONFIG_SWCONFIG)		+= swconfig.o
+ obj-$(CONFIG_MARVELL_PHY)	+= marvell.o
+ obj-$(CONFIG_DAVICOM_PHY)	+= davicom.o
+ obj-$(CONFIG_CICADA_PHY)	+= cicada.o
diff --git a/target/linux/generic/patches-2.6.38/660-phy_mvswitch.patch b/target/linux/generic/patches-2.6.38/660-phy_mvswitch.patch
new file mode 100644
index 0000000000..00950dc637
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/660-phy_mvswitch.patch
@@ -0,0 +1,22 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -103,6 +103,9 @@ config ADM6996_PHY
+ 	---help---
+ 	  Currently supports the ADM6996F switch
+ 
++config MVSWITCH_PHY
++	tristate "Driver for Marvell 88E6060 switches"
++
+ config FIXED_PHY
+ 	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+ 	depends on PHYLIB=y
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -15,6 +15,7 @@ obj-$(CONFIG_BROADCOM_PHY)	+= broadcom.o
+ obj-$(CONFIG_BCM63XX_PHY)	+= bcm63xx.o
+ obj-$(CONFIG_ICPLUS_PHY)	+= icplus.o
+ obj-$(CONFIG_ADM6996_PHY)	+= adm6996.o
++obj-$(CONFIG_MVSWITCH_PHY)	+= mvswitch.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
+ obj-$(CONFIG_LSI_ET1011C_PHY)	+= et1011c.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
diff --git a/target/linux/generic/patches-2.6.38/670-phy_ip175c.patch b/target/linux/generic/patches-2.6.38/670-phy_ip175c.patch
new file mode 100644
index 0000000000..0af080bc9b
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/670-phy_ip175c.patch
@@ -0,0 +1,23 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -106,6 +106,10 @@ config ADM6996_PHY
+ config MVSWITCH_PHY
+ 	tristate "Driver for Marvell 88E6060 switches"
+ 
++config IP17XX_PHY
++	tristate "Driver for IC+ IP17xx switches"
++	select SWCONFIG
++
+ config FIXED_PHY
+ 	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+ 	depends on PHYLIB=y
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -16,6 +16,7 @@ obj-$(CONFIG_BCM63XX_PHY)	+= bcm63xx.o
+ obj-$(CONFIG_ICPLUS_PHY)	+= icplus.o
+ obj-$(CONFIG_ADM6996_PHY)	+= adm6996.o
+ obj-$(CONFIG_MVSWITCH_PHY)	+= mvswitch.o
++obj-$(CONFIG_IP17XX_PHY)	+= ip17xx.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
+ obj-$(CONFIG_LSI_ET1011C_PHY)	+= et1011c.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
diff --git a/target/linux/generic/patches-2.6.38/680-phy_ar8216.patch b/target/linux/generic/patches-2.6.38/680-phy_ar8216.patch
new file mode 100644
index 0000000000..e532b3cca9
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/680-phy_ar8216.patch
@@ -0,0 +1,23 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -110,6 +110,10 @@ config IP17XX_PHY
+ 	tristate "Driver for IC+ IP17xx switches"
+ 	select SWCONFIG
+ 
++config AR8216_PHY
++	tristate "Driver for Atheros AR8216 switches"
++	select SWCONFIG
++
+ config FIXED_PHY
+ 	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+ 	depends on PHYLIB=y
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -18,6 +18,7 @@ obj-$(CONFIG_ADM6996_PHY)	+= adm6996.o
+ obj-$(CONFIG_MVSWITCH_PHY)	+= mvswitch.o
+ obj-$(CONFIG_IP17XX_PHY)	+= ip17xx.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
++obj-$(CONFIG_AR8216_PHY)	+= ar8216.o
+ obj-$(CONFIG_LSI_ET1011C_PHY)	+= et1011c.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
+ obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o
diff --git a/target/linux/generic/patches-2.6.38/690-phy_rtl8306.patch b/target/linux/generic/patches-2.6.38/690-phy_rtl8306.patch
new file mode 100644
index 0000000000..5a527b1863
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/690-phy_rtl8306.patch
@@ -0,0 +1,23 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -114,6 +114,10 @@ config AR8216_PHY
+ 	tristate "Driver for Atheros AR8216 switches"
+ 	select SWCONFIG
+ 
++config RTL8306_PHY
++	tristate "Driver for Realtek RTL8306S switches"
++	select SWCONFIG
++
+ config FIXED_PHY
+ 	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+ 	depends on PHYLIB=y
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -19,6 +19,7 @@ obj-$(CONFIG_MVSWITCH_PHY)	+= mvswitch.o
+ obj-$(CONFIG_IP17XX_PHY)	+= ip17xx.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
+ obj-$(CONFIG_AR8216_PHY)	+= ar8216.o
++obj-$(CONFIG_RTL8306_PHY)	+= rtl8306.o
+ obj-$(CONFIG_LSI_ET1011C_PHY)	+= et1011c.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
+ obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o
diff --git a/target/linux/generic/patches-2.6.38/691-phy_rtl8366.patch b/target/linux/generic/patches-2.6.38/691-phy_rtl8366.patch
new file mode 100644
index 0000000000..fdfeb54335
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/691-phy_rtl8366.patch
@@ -0,0 +1,44 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -156,4 +156,29 @@ config MDIO_OCTEON
+ 
+ 	  If in doubt, say Y.
+ 
++config RTL8366_SMI
++	tristate "Driver for the RTL8366 SMI interface"
++	depends on GENERIC_GPIO
++	---help---
++	  This module implements the SMI interface protocol which is used
++	  by some RTL8366 ethernet switch devices via the generic GPIO API.
++
++if RTL8366_SMI
++
++config RTL8366S_PHY
++	tristate "Driver for the Realtek RTL8366S switch"
++	select SWCONFIG
++
++config RTL8366RB_PHY
++	tristate "Driver for the Realtek RTL8366RB switch"
++	select SWCONFIG
++
++config RTL8366S_PHY_DEBUG_FS
++	bool "RTL8366 switch driver DEBUG_FS support"
++	depends on RTL8366S_PHY || RTL8366RB_PHY
++	depends on DEBUG_FS
++	default n
++
++endif # RTL8366_SMI
++
+ endif # PHYLIB
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -20,6 +20,9 @@ obj-$(CONFIG_IP17XX_PHY)	+= ip17xx.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
+ obj-$(CONFIG_AR8216_PHY)	+= ar8216.o
+ obj-$(CONFIG_RTL8306_PHY)	+= rtl8306.o
++obj-$(CONFIG_RTL8366_SMI)	+= rtl8366_smi.o
++obj-$(CONFIG_RTL8366S_PHY)	+= rtl8366s.o
++obj-$(CONFIG_RTL8366RB_PHY)	+= rtl8366rb.o
+ obj-$(CONFIG_LSI_ET1011C_PHY)	+= et1011c.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
+ obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o
diff --git a/target/linux/generic/patches-2.6.38/700-rtc7301.patch b/target/linux/generic/patches-2.6.38/700-rtc7301.patch
new file mode 100644
index 0000000000..2cc7b03fb6
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/700-rtc7301.patch
@@ -0,0 +1,250 @@
+--- a/drivers/rtc/Kconfig
++++ b/drivers/rtc/Kconfig
+@@ -677,6 +677,15 @@ config RTC_DRV_NUC900
+ 	  If you say yes here you get support for the RTC subsystem of the
+ 	  NUC910/NUC920 used in embedded systems.
+ 
++config RTC_DRV_RTC7301
++	tristate "Epson RTC-7301 SF/DG"
++	help
++	  If you say Y here you will get support for the
++	  Epson RTC-7301 SF/DG RTC chips.
++
++	  This driver can also be built as a module. If so, the module
++	  will be called rtc-7301.
++
+ comment "on-CPU RTC drivers"
+ 
+ config RTC_DRV_DAVINCI
+--- a/drivers/rtc/Makefile
++++ b/drivers/rtc/Makefile
+@@ -83,6 +83,7 @@ obj-$(CONFIG_RTC_DRV_RP5C01)	+= rtc-rp5c
+ obj-$(CONFIG_RTC_DRV_RS5C313)	+= rtc-rs5c313.o
+ obj-$(CONFIG_RTC_DRV_RS5C348)	+= rtc-rs5c348.o
+ obj-$(CONFIG_RTC_DRV_RS5C372)	+= rtc-rs5c372.o
++obj-$(CONFIG_RTC_DRV_RTC7301)	+= rtc-rtc7301.o
+ obj-$(CONFIG_RTC_DRV_RX8025)	+= rtc-rx8025.o
+ obj-$(CONFIG_RTC_DRV_RX8581)	+= rtc-rx8581.o
+ obj-$(CONFIG_RTC_DRV_S35390A)	+= rtc-s35390a.o
+--- /dev/null
++++ b/drivers/rtc/rtc-rtc7301.c
+@@ -0,0 +1,219 @@
++/*
++ * Driver for Epson RTC-7301SF/DG
++ *
++ * Copyright (C) 2009 Jose Vasconcellos
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/module.h>
++#include <linux/rtc.h>
++#include <linux/platform_device.h>
++#include <linux/io.h>
++#include <linux/delay.h>
++#include <linux/bcd.h>
++
++#define RTC_NAME "rtc7301"
++#define RTC_VERSION "0.1"
++
++/* Epson RTC-7301 register addresses */
++#define RTC7301_SEC		0x00
++#define RTC7301_SEC10		0x01
++#define RTC7301_MIN		0x02
++#define RTC7301_MIN10		0x03
++#define RTC7301_HOUR		0x04
++#define RTC7301_HOUR10		0x05
++#define RTC7301_WEEKDAY		0x06
++#define RTC7301_DAY		0x07
++#define RTC7301_DAY10		0x08
++#define RTC7301_MON		0x09
++#define RTC7301_MON10		0x0A
++#define RTC7301_YEAR		0x0B
++#define RTC7301_YEAR10		0x0C
++#define RTC7301_YEAR100		0x0D
++#define RTC7301_YEAR1000	0x0E
++#define RTC7301_CTRLREG		0x0F
++
++static uint8_t __iomem *rtc7301_base;
++
++#define read_reg(offset) (readb(rtc7301_base + offset) & 0xf)
++#define write_reg(offset, data) writeb(data, rtc7301_base + (offset))
++
++#define rtc7301_isbusy() (read_reg(RTC7301_CTRLREG) & 1)
++
++static void rtc7301_init_settings(void)
++{
++	int i;
++
++	write_reg(RTC7301_CTRLREG, 2);
++	write_reg(RTC7301_YEAR1000, 2);
++	udelay(122);
++
++	/* bank 1 */
++	write_reg(RTC7301_CTRLREG, 6);
++	for (i=0; i<15; i++)
++		write_reg(i, 0);
++
++	/* bank 2 */
++	write_reg(RTC7301_CTRLREG, 14);
++	for (i=0; i<15; i++)
++		write_reg(i, 0);
++	write_reg(RTC7301_CTRLREG, 0);
++}
++
++static int rtc7301_get_datetime(struct device *dev, struct rtc_time *dt)
++{
++	int cnt;
++	uint8_t buf[16];
++
++	cnt = 0;
++	while (rtc7301_isbusy()) {
++		udelay(244);
++		if (cnt++ > 100) {
++			dev_err(dev, "%s: timeout error %x\n", __func__, rtc7301_base[RTC7301_CTRLREG]);
++			return -EIO;
++		}
++	}
++
++	for (cnt=0; cnt<16; cnt++)
++		buf[cnt] = read_reg(cnt);
++
++	if (buf[RTC7301_SEC10] & 8) {
++		dev_err(dev, "%s: RTC not set\n", __func__);
++		return -EINVAL;
++	}
++
++	memset(dt, 0, sizeof(*dt));
++
++	dt->tm_sec =  buf[RTC7301_SEC] + buf[RTC7301_SEC10]*10;
++	dt->tm_min =  buf[RTC7301_MIN] + buf[RTC7301_MIN10]*10;
++	dt->tm_hour = buf[RTC7301_HOUR] + buf[RTC7301_HOUR10]*10;
++
++	dt->tm_mday = buf[RTC7301_DAY] + buf[RTC7301_DAY10]*10;
++	dt->tm_mon =  buf[RTC7301_MON] + buf[RTC7301_MON10]*10 - 1;
++	dt->tm_year = buf[RTC7301_YEAR] + buf[RTC7301_YEAR10]*10 +
++		      buf[RTC7301_YEAR100]*100 +
++		      ((buf[RTC7301_YEAR1000] & 3)*1000) - 1900;
++
++	/* the rtc device may contain illegal values on power up
++	 * according to the data sheet. make sure they are valid.
++	 */
++
++	return rtc_valid_tm(dt);
++}
++
++static int rtc7301_set_datetime(struct device *dev, struct rtc_time *dt)
++{
++	int data;
++
++	data = dt->tm_year + 1900;
++	if (data >= 2100 || data < 1900)
++		return -EINVAL;
++
++	write_reg(RTC7301_CTRLREG, 2);
++       	udelay(122);
++
++	data = bin2bcd(dt->tm_sec);
++	write_reg(RTC7301_SEC, data);
++	write_reg(RTC7301_SEC10, (data >> 4));
++
++	data = bin2bcd(dt->tm_min);
++	write_reg(RTC7301_MIN, data );
++	write_reg(RTC7301_MIN10, (data >> 4));
++
++	data = bin2bcd(dt->tm_hour);
++	write_reg(RTC7301_HOUR, data);
++	write_reg(RTC7301_HOUR10, (data >> 4));
++
++	data = bin2bcd(dt->tm_mday);
++	write_reg(RTC7301_DAY, data);
++	write_reg(RTC7301_DAY10, (data>> 4));
++
++	data = bin2bcd(dt->tm_mon + 1);
++	write_reg(RTC7301_MON, data);
++	write_reg(RTC7301_MON10, (data >> 4));
++
++	data = bin2bcd(dt->tm_year % 100);
++	write_reg(RTC7301_YEAR, data);
++	write_reg(RTC7301_YEAR10, (data >> 4));
++	data = bin2bcd((1900 + dt->tm_year) / 100);
++	write_reg(RTC7301_YEAR100, data);
++
++	data = bin2bcd(dt->tm_wday);
++	write_reg(RTC7301_WEEKDAY, data);
++
++	write_reg(RTC7301_CTRLREG, 0);
++
++	return 0;
++}
++
++static const struct rtc_class_ops rtc7301_rtc_ops = {
++	.read_time	= rtc7301_get_datetime,
++	.set_time	= rtc7301_set_datetime,
++};
++
++static int __devinit rtc7301_probe(struct platform_device *pdev)
++{
++	struct rtc_device *rtc;
++	struct resource *res;
++
++	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (!res)
++		return -ENOENT;
++
++	rtc7301_base = ioremap_nocache(res->start, 0x1000 /*res->end - res->start + 1*/);
++	if (!rtc7301_base)
++		return -EINVAL;
++
++	rtc = rtc_device_register(RTC_NAME, &pdev->dev,
++				&rtc7301_rtc_ops, THIS_MODULE);
++	if (IS_ERR(rtc)) {
++		iounmap(rtc7301_base);
++		return PTR_ERR(rtc);
++	}
++
++	platform_set_drvdata(pdev, rtc);
++
++	rtc7301_init_settings();
++	return 0;
++}
++
++static int __devexit rtc7301_remove(struct platform_device *pdev)
++{
++	struct rtc_device *rtc = platform_get_drvdata(pdev);
++
++	if (rtc)
++		rtc_device_unregister(rtc);
++	if (rtc7301_base)
++		iounmap(rtc7301_base);
++	return 0;
++}
++
++static struct platform_driver rtc7301_driver = {
++	.driver = {
++		.name	= RTC_NAME,
++		.owner	= THIS_MODULE,
++	},
++	.probe	= rtc7301_probe,
++	.remove = __devexit_p(rtc7301_remove),
++};
++
++static __init int rtc7301_init(void)
++{
++	return platform_driver_register(&rtc7301_driver);
++}
++module_init(rtc7301_init);
++
++static __exit void rtc7301_exit(void)
++{
++	platform_driver_unregister(&rtc7301_driver);
++}
++module_exit(rtc7301_exit);
++
++MODULE_DESCRIPTION("Epson 7301 RTC driver");
++MODULE_AUTHOR("Jose Vasconcellos <jvasco@verizon.net>");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:" RTC_NAME);
++MODULE_VERSION(RTC_VERSION);
diff --git a/target/linux/generic/patches-2.6.38/750-glamo-headers.patch b/target/linux/generic/patches-2.6.38/750-glamo-headers.patch
new file mode 100644
index 0000000000..64908ecb4f
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/750-glamo-headers.patch
@@ -0,0 +1,21 @@
+--- a/include/linux/fb.h
++++ b/include/linux/fb.h
+@@ -125,6 +125,7 @@
+ #define FB_ACCEL_TRIDENT_BLADE3D 52	/* Trident Blade3D		*/
+ #define FB_ACCEL_TRIDENT_BLADEXP 53	/* Trident BladeXP		*/
+ #define FB_ACCEL_CIRRUS_ALPINE   53	/* Cirrus Logic 543x/544x/5480	*/
++#define FB_ACCEL_GLAMO		50	/* SMedia Glamo                 */
+ #define FB_ACCEL_NEOMAGIC_NM2070 90	/* NeoMagic NM2070              */
+ #define FB_ACCEL_NEOMAGIC_NM2090 91	/* NeoMagic NM2090              */
+ #define FB_ACCEL_NEOMAGIC_NM2093 92	/* NeoMagic NM2093              */
+--- a/include/linux/Kbuild
++++ b/include/linux/Kbuild
+@@ -141,6 +141,8 @@ header-y += generic_serial.h
+ header-y += genetlink.h
+ header-y += gfs2_ondisk.h
+ header-y += gigaset_dev.h
++header-y += glamofb.h
++header-y += glamo-engine.h
+ header-y += hdlc.h
+ header-y += hdlcdrv.h
+ header-y += hdreg.h
diff --git a/target/linux/generic/patches-2.6.38/801-usb_serial_endpoint_size.patch b/target/linux/generic/patches-2.6.38/801-usb_serial_endpoint_size.patch
new file mode 100644
index 0000000000..45a096d873
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/801-usb_serial_endpoint_size.patch
@@ -0,0 +1,25 @@
+--- a/drivers/usb/serial/usb-serial.c
++++ b/drivers/usb/serial/usb-serial.c
+@@ -61,6 +61,7 @@ static struct usb_driver usb_serial_driv
+    drivers depend on it.
+ */
+ 
++static ushort maxSize = 0;
+ static int debug;
+ /* initially all NULL */
+ static struct usb_serial *serial_table[SERIAL_TTY_MINORS];
+@@ -913,7 +914,7 @@ int usb_serial_probe(struct usb_interfac
+ 		}
+ 		buffer_size = serial->type->bulk_in_size;
+ 		if (!buffer_size)
+-			buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
++			buffer_size = (endpoint->wMaxPacketSize > maxSize) ? endpoint->wMaxPacketSize : maxSize;
+ 		port->bulk_in_size = buffer_size;
+ 		port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
+ 		port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
+@@ -1388,3 +1389,5 @@ MODULE_LICENSE("GPL");
+ 
+ module_param(debug, bool, S_IRUGO | S_IWUSR);
+ MODULE_PARM_DESC(debug, "Debug enabled or not");
++module_param(maxSize, ushort,0);
++MODULE_PARM_DESC(maxSize,"User specified USB endpoint size");
diff --git a/target/linux/generic/patches-2.6.38/840-unable_to_open_console.patch b/target/linux/generic/patches-2.6.38/840-unable_to_open_console.patch
new file mode 100644
index 0000000000..8f1a4cb8ed
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/840-unable_to_open_console.patch
@@ -0,0 +1,11 @@
+--- a/init/main.c
++++ b/init/main.c
+@@ -890,7 +890,7 @@ static int __init kernel_init(void * unu
+ 
+ 	/* Open the /dev/console on the rootfs, this should never fail */
+ 	if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
+-		printk(KERN_WARNING "Warning: unable to open an initial console.\n");
++		printk(KERN_WARNING "Please be patient, while OpenWrt loads ...\n");
+ 
+ 	(void) sys_dup(0);
+ 	(void) sys_dup(0);
diff --git a/target/linux/generic/patches-2.6.38/900-bcm47xx_wdt-noprescale.patch b/target/linux/generic/patches-2.6.38/900-bcm47xx_wdt-noprescale.patch
new file mode 100644
index 0000000000..6bc2b12eb0
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/900-bcm47xx_wdt-noprescale.patch
@@ -0,0 +1,89 @@
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -31,6 +31,7 @@
+ 
+ #define WDT_DEFAULT_TIME	30	/* seconds */
+ #define WDT_MAX_TIME		255	/* seconds */
++#define WDT_SHIFT		15	/* 32.768 KHz on cores with slow WDT clock */
+ 
+ static int wdt_time = WDT_DEFAULT_TIME;
+ static int nowayout = WATCHDOG_NOWAYOUT;
+@@ -50,11 +51,11 @@ static unsigned long bcm47xx_wdt_busy;
+ static char expect_release;
+ static struct timer_list wdt_timer;
+ static atomic_t ticks;
++static int needs_sw_scale;
+ 
+-static inline void bcm47xx_wdt_hw_start(void)
++static inline void bcm47xx_wdt_hw_start(u32 ticks)
+ {
+-	/* this is 2,5s on 100Mhz clock  and 2s on 133 Mhz */
+-	ssb_watchdog_timer_set(&ssb_bcm47xx, 0xfffffff);
++ 	ssb_watchdog_timer_set(&ssb_bcm47xx, ticks);
+ }
+ 
+ static inline int bcm47xx_wdt_hw_stop(void)
+@@ -65,33 +66,34 @@ static inline int bcm47xx_wdt_hw_stop(vo
+ static void bcm47xx_timer_tick(unsigned long unused)
+ {
+ 	if (!atomic_dec_and_test(&ticks)) {
+-		bcm47xx_wdt_hw_start();
++		/* This is 2,5s on 100Mhz clock and 2s on 133 Mhz */
++		bcm47xx_wdt_hw_start(0xfffffff);
+ 		mod_timer(&wdt_timer, jiffies + HZ);
+ 	} else {
+-		printk(KERN_CRIT DRV_NAME "Watchdog will fire soon!!!\n");
++		printk(KERN_CRIT DRV_NAME ": Watchdog will fire soon!!!\n");
+ 	}
+ }
+ 
+-static inline void bcm47xx_wdt_pet(void)
++static void bcm47xx_wdt_pet(void)
+ {
+-	atomic_set(&ticks, wdt_time);
++	if(needs_sw_scale)
++		atomic_set(&ticks, wdt_time);
++	else
++		bcm47xx_wdt_hw_start(wdt_time << WDT_SHIFT);
+ }
+ 
+ static void bcm47xx_wdt_start(void)
+ {
+ 	bcm47xx_wdt_pet();
+-	bcm47xx_timer_tick(0);
+-}
+-
+-static void bcm47xx_wdt_pause(void)
+-{
+-	del_timer_sync(&wdt_timer);
+-	bcm47xx_wdt_hw_stop();
++	if(needs_sw_scale)
++		bcm47xx_timer_tick(0);
+ }
+ 
+ static void bcm47xx_wdt_stop(void)
+ {
+-	bcm47xx_wdt_pause();
++	if(needs_sw_scale)
++		del_timer_sync(&wdt_timer);
++	bcm47xx_wdt_hw_stop();
+ }
+ 
+ static int bcm47xx_wdt_settimeout(int new_time)
+@@ -243,7 +245,15 @@ static int __init bcm47xx_wdt_init(void)
+ 	if (bcm47xx_wdt_hw_stop() < 0)
+ 		return -ENODEV;
+ 
+-	setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
++	/* FIXME Other cores */
++	if(ssb_bcm47xx.chip_id == 0x5354) {
++		/* Slow WDT clock, no pre-scaling */
++		needs_sw_scale = 0;
++	} else {
++		/* Fast WDT clock, needs software pre-scaling */
++		needs_sw_scale = 1;
++		setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
++	}
+ 
+ 	if (bcm47xx_wdt_settimeout(wdt_time)) {
+ 		bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME);
diff --git a/target/linux/generic/patches-2.6.38/902-darwin_scripts_include.patch b/target/linux/generic/patches-2.6.38/902-darwin_scripts_include.patch
new file mode 100644
index 0000000000..0686a38973
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/902-darwin_scripts_include.patch
@@ -0,0 +1,78 @@
+--- a/scripts/kallsyms.c
++++ b/scripts/kallsyms.c
+@@ -22,6 +22,35 @@
+ #include <stdlib.h>
+ #include <string.h>
+ #include <ctype.h>
++#ifdef __APPLE__
++/* Darwin has no memmem implementation, this one is ripped of the uClibc-0.9.28 source */
++void *memmem (const void *haystack, size_t haystack_len,
++                          const void *needle,  size_t needle_len)
++{
++  const char *begin;
++  const char *const last_possible
++    = (const char *) haystack + haystack_len - needle_len;
++
++  if (needle_len == 0)
++    /* The first occurrence of the empty string is deemed to occur at
++       the beginning of the string.  */
++    return (void *) haystack;
++
++  /* Sanity check, otherwise the loop might search through the whole
++     memory.  */
++  if (__builtin_expect (haystack_len < needle_len, 0))
++    return NULL;
++
++  for (begin = (const char *) haystack; begin <= last_possible; ++begin)
++    if (begin[0] == ((const char *) needle)[0] &&
++        !memcmp ((const void *) &begin[1],
++                 (const void *) ((const char *) needle + 1),
++                 needle_len - 1))
++      return (void *) begin;
++
++  return NULL;
++}
++#endif
+ 
+ #ifndef ARRAY_SIZE
+ #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
+--- a/scripts/kconfig/Makefile
++++ b/scripts/kconfig/Makefile
+@@ -147,6 +147,9 @@ check-lxdialog  := $(srctree)/$(src)/lxd
+ # we really need to do so. (Do not call gcc as part of make mrproper)
+ HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
+                     -DLOCALE
++ifeq ($(shell uname -s),Darwin)
++HOST_LOADLIBES  += -lncurses
++endif
+ 
+ # ===========================================================================
+ # Shared Makefile for the various kconfig executables:
+--- a/scripts/mod/mk_elfconfig.c
++++ b/scripts/mod/mk_elfconfig.c
+@@ -1,7 +1,11 @@
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
++#ifndef __APPLE__
+ #include <elf.h>
++#else
++#include "../../../../../tools/sstrip/include/elf.h"
++#endif
+ 
+ int
+ main(int argc, char **argv)
+--- a/scripts/mod/modpost.h
++++ b/scripts/mod/modpost.h
+@@ -7,7 +7,11 @@
+ #include <sys/mman.h>
+ #include <fcntl.h>
+ #include <unistd.h>
++#if !(defined(__APPLE__) || defined(__CYGWIN__))
+ #include <elf.h>
++#else
++#include "../../../../../tools/sstrip/include/elf.h"
++#endif
+ 
+ #include "elfconfig.h"
+ 
diff --git a/target/linux/generic/patches-2.6.38/903-hostap_txpower.patch b/target/linux/generic/patches-2.6.38/903-hostap_txpower.patch
new file mode 100644
index 0000000000..374a284454
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/903-hostap_txpower.patch
@@ -0,0 +1,154 @@
+--- a/drivers/net/wireless/hostap/hostap_ap.c
++++ b/drivers/net/wireless/hostap/hostap_ap.c
+@@ -2338,13 +2338,13 @@ int prism2_ap_get_sta_qual(local_info_t
+ 		addr[count].sa_family = ARPHRD_ETHER;
+ 		memcpy(addr[count].sa_data, sta->addr, ETH_ALEN);
+ 		if (sta->last_rx_silence == 0)
+-			qual[count].qual = sta->last_rx_signal < 27 ?
+-				0 : (sta->last_rx_signal - 27) * 92 / 127;
++                        qual[count].qual = (sta->last_rx_signal - 156) == 0 ?
++                                0 : (sta->last_rx_signal - 156) * 92 / 64;
+ 		else
+-			qual[count].qual = sta->last_rx_signal -
+-				sta->last_rx_silence - 35;
+-		qual[count].level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
+-		qual[count].noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
++                        qual[count].qual = (sta->last_rx_signal -
++                                sta->last_rx_silence) * 92 / 64;
++                qual[count].level = sta->last_rx_signal;
++                qual[count].noise = sta->last_rx_silence;
+ 		qual[count].updated = sta->last_rx_updated;
+ 
+ 		sta->last_rx_updated = IW_QUAL_DBM;
+@@ -2410,13 +2410,13 @@ int prism2_ap_translate_scan(struct net_
+ 		memset(&iwe, 0, sizeof(iwe));
+ 		iwe.cmd = IWEVQUAL;
+ 		if (sta->last_rx_silence == 0)
+-			iwe.u.qual.qual = sta->last_rx_signal < 27 ?
+-				0 : (sta->last_rx_signal - 27) * 92 / 127;
++	                iwe.u.qual.qual = (sta->last_rx_signal -156) == 0 ?
++	                        0 : (sta->last_rx_signal - 156) * 92 / 64;
+ 		else
+-			iwe.u.qual.qual = sta->last_rx_signal -
+-				sta->last_rx_silence - 35;
+-		iwe.u.qual.level = HFA384X_LEVEL_TO_dBm(sta->last_rx_signal);
+-		iwe.u.qual.noise = HFA384X_LEVEL_TO_dBm(sta->last_rx_silence);
++                        iwe.u.qual.qual = (sta->last_rx_signal -
++                                sta->last_rx_silence) * 92 / 64;
++                iwe.u.qual.level = sta->last_rx_signal;
++                iwe.u.qual.noise = sta->last_rx_silence;
+ 		iwe.u.qual.updated = sta->last_rx_updated;
+ 		iwe.len = IW_EV_QUAL_LEN;
+ 		current_ev = iwe_stream_add_event(info, current_ev, end_buf,
+--- a/drivers/net/wireless/hostap/hostap_config.h
++++ b/drivers/net/wireless/hostap/hostap_config.h
+@@ -45,4 +45,9 @@
+  */
+ /* #define PRISM2_NO_STATION_MODES */
+ 
++/* Enable TX power Setting functions
++ * (min att = -128 , max att =  127)
++ */
++#define RAW_TXPOWER_SETTING
++
+ #endif /* HOSTAP_CONFIG_H */
+--- a/drivers/net/wireless/hostap/hostap.h
++++ b/drivers/net/wireless/hostap/hostap.h
+@@ -90,6 +90,7 @@ extern const struct iw_handler_def hosta
+ extern const struct ethtool_ops prism2_ethtool_ops;
+ 
+ int hostap_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
++int hostap_restore_power(struct net_device *dev);
+ 
+ 
+ #endif /* HOSTAP_H */
+--- a/drivers/net/wireless/hostap/hostap_hw.c
++++ b/drivers/net/wireless/hostap/hostap_hw.c
+@@ -932,6 +932,7 @@ static int hfa384x_set_rid(struct net_de
+ 			prism2_hw_reset(dev);
+ 	}
+ 
++	hostap_restore_power(dev);
+ 	return res;
+ }
+ 
+--- a/drivers/net/wireless/hostap/hostap_info.c
++++ b/drivers/net/wireless/hostap/hostap_info.c
+@@ -433,6 +433,11 @@ static void handle_info_queue_linkstatus
+ 	}
+ 
+ 	/* Get BSSID if we have a valid AP address */
++
++	if ( val == HFA384X_LINKSTATUS_CONNECTED ||
++	     val == HFA384X_LINKSTATUS_DISCONNECTED )
++			hostap_restore_power(local->dev);
++
+ 	if (connected) {
+ 		netif_carrier_on(local->dev);
+ 		netif_carrier_on(local->ddev);
+--- a/drivers/net/wireless/hostap/hostap_ioctl.c
++++ b/drivers/net/wireless/hostap/hostap_ioctl.c
+@@ -1477,23 +1477,20 @@ static int prism2_txpower_hfa386x_to_dBm
+ 		val = 255;
+ 
+ 	tmp = val;
+-	tmp >>= 2;
+ 
+-	return -12 - tmp;
++	return tmp;
+ }
+ 
+ static u16 prism2_txpower_dBm_to_hfa386x(int val)
+ {
+ 	signed char tmp;
+ 
+-	if (val > 20)
+-		return 128;
+-	else if (val < -43)
++	if (val > 127)
+ 		return 127;
++	else if (val < -128)
++		return 128;
+ 
+ 	tmp = val;
+-	tmp = -12 - tmp;
+-	tmp <<= 2;
+ 
+ 	return (unsigned char) tmp;
+ }
+@@ -4056,3 +4053,35 @@ int hostap_ioctl(struct net_device *dev,
+ 
+ 	return ret;
+ }
++
++/* BUG FIX: Restore power setting value when lost due to F/W bug */
++
++int hostap_restore_power(struct net_device *dev)
++{
++        struct hostap_interface *iface = netdev_priv(dev);
++       local_info_t *local = iface->local;
++
++       u16 val;
++       int ret = 0;
++
++       if (local->txpower_type == PRISM2_TXPOWER_OFF) {
++                       val = 0xff; /* use all standby and sleep modes */
++                       ret = local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
++                                              HFA386X_CR_A_D_TEST_MODES2,
++                                              &val, NULL);
++       }
++
++#ifdef RAW_TXPOWER_SETTING
++       if (local->txpower_type == PRISM2_TXPOWER_FIXED) {
++               val = HFA384X_TEST_CFG_BIT_ALC;
++               local->func->cmd(dev, HFA384X_CMDCODE_TEST |
++                                (HFA384X_TEST_CFG_BITS << 8), 0, &val, NULL);
++               val = prism2_txpower_dBm_to_hfa386x(local->txpower);
++               ret = (local->func->cmd(dev, HFA384X_CMDCODE_WRITEMIF,
++                            HFA386X_CR_MANUAL_TX_POWER, &val, NULL));
++       }
++#endif /* RAW_TXPOWER_SETTING */
++       return (ret ? -EOPNOTSUPP : 0);
++}
++
++EXPORT_SYMBOL(hostap_restore_power);
diff --git a/target/linux/generic/patches-2.6.38/903-stddef_include.patch b/target/linux/generic/patches-2.6.38/903-stddef_include.patch
new file mode 100644
index 0000000000..7fe248d8d3
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/903-stddef_include.patch
@@ -0,0 +1,17 @@
+--- a/include/linux/stddef.h
++++ b/include/linux/stddef.h
+@@ -16,6 +16,7 @@ enum {
+ 	false	= 0,
+ 	true	= 1
+ };
++#endif /* __KERNEL__ */
+ 
+ #undef offsetof
+ #ifdef __compiler_offsetof
+@@ -23,6 +24,5 @@ enum {
+ #else
+ #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+ #endif
+-#endif /* __KERNEL__ */
+ 
+ #endif
diff --git a/target/linux/generic/patches-2.6.38/905-i386_build.patch b/target/linux/generic/patches-2.6.38/905-i386_build.patch
new file mode 100644
index 0000000000..c701fdaa95
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/905-i386_build.patch
@@ -0,0 +1,10 @@
+--- a/arch/x86/boot/tools/build.c
++++ b/arch/x86/boot/tools/build.c
+@@ -29,7 +29,6 @@
+ #include <stdarg.h>
+ #include <sys/types.h>
+ #include <sys/stat.h>
+-#include <sys/sysmacros.h>
+ #include <unistd.h>
+ #include <fcntl.h>
+ #include <sys/mman.h>
diff --git a/target/linux/generic/patches-2.6.38/920-01-hotpluggable-spi-gpio.patch b/target/linux/generic/patches-2.6.38/920-01-hotpluggable-spi-gpio.patch
new file mode 100644
index 0000000000..f8e6374fa7
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/920-01-hotpluggable-spi-gpio.patch
@@ -0,0 +1,60 @@
+Fix spi-gpio for hotplug.
+
+--mb
+
+
+
+--- a/drivers/spi/spi_gpio.c
++++ b/drivers/spi/spi_gpio.c
+@@ -255,7 +255,7 @@ static void spi_gpio_cleanup(struct spi_
+ 	spi_bitbang_cleanup(spi);
+ }
+ 
+-static int __init spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
++static int __devinit spi_gpio_alloc(unsigned pin, const char *label, bool is_in)
+ {
+ 	int value;
+ 
+@@ -269,7 +269,7 @@ static int __init spi_gpio_alloc(unsigne
+ 	return value;
+ }
+ 
+-static int __init
++static int __devinit
+ spi_gpio_request(struct spi_gpio_platform_data *pdata, const char *label,
+ 	u16 *res_flags)
+ {
+@@ -311,7 +311,7 @@ done:
+ 	return value;
+ }
+ 
+-static int __init spi_gpio_probe(struct platform_device *pdev)
++static int __devinit spi_gpio_probe(struct platform_device *pdev)
+ {
+ 	int				status;
+ 	struct spi_master		*master;
+@@ -379,7 +379,7 @@ gpio_free:
+ 	return status;
+ }
+ 
+-static int __exit spi_gpio_remove(struct platform_device *pdev)
++static int __devexit spi_gpio_remove(struct platform_device *pdev)
+ {
+ 	struct spi_gpio			*spi_gpio;
+ 	struct spi_gpio_platform_data	*pdata;
+@@ -408,12 +408,13 @@ MODULE_ALIAS("platform:" DRIVER_NAME);
+ static struct platform_driver spi_gpio_driver = {
+ 	.driver.name	= DRIVER_NAME,
+ 	.driver.owner	= THIS_MODULE,
+-	.remove		= __exit_p(spi_gpio_remove),
++	.probe		= spi_gpio_probe,
++	.remove		= __devexit_p(spi_gpio_remove),
+ };
+ 
+ static int __init spi_gpio_init(void)
+ {
+-	return platform_driver_probe(&spi_gpio_driver, spi_gpio_probe);
++	return platform_driver_register(&spi_gpio_driver);
+ }
+ module_init(spi_gpio_init);
+ 
diff --git a/target/linux/generic/patches-2.6.38/920-04-spi-gpio-implement-spi-delay.patch b/target/linux/generic/patches-2.6.38/920-04-spi-gpio-implement-spi-delay.patch
new file mode 100644
index 0000000000..4b145c2734
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/920-04-spi-gpio-implement-spi-delay.patch
@@ -0,0 +1,58 @@
+Implement the SPI-GPIO delay function for busses that need speed limitation.
+
+--mb
+
+
+
+--- a/drivers/spi/spi_gpio.c
++++ b/drivers/spi/spi_gpio.c
+@@ -21,6 +21,7 @@
+ #include <linux/init.h>
+ #include <linux/platform_device.h>
+ #include <linux/gpio.h>
++#include <linux/delay.h>
+ 
+ #include <linux/spi/spi.h>
+ #include <linux/spi/spi_bitbang.h>
+@@ -69,6 +70,7 @@ struct spi_gpio {
+  *		#define	SPI_MOSI_GPIO	120
+  *		#define	SPI_SCK_GPIO	121
+  *		#define	SPI_N_CHIPSEL	4
++ *		#undef NEED_SPIDELAY
+  *		#include "spi_gpio.c"
+  */
+ 
+@@ -76,6 +78,7 @@ struct spi_gpio {
+ #define DRIVER_NAME	"spi_gpio"
+ 
+ #define GENERIC_BITBANG	/* vs tight inlines */
++#define NEED_SPIDELAY	1
+ 
+ /* all functions referencing these symbols must define pdata */
+ #define SPI_MISO_GPIO	((pdata)->miso)
+@@ -120,12 +123,20 @@ static inline int getmiso(const struct s
+ #undef pdata
+ 
+ /*
+- * NOTE:  this clocks "as fast as we can".  It "should" be a function of the
+- * requested device clock.  Software overhead means we usually have trouble
+- * reaching even one Mbit/sec (except when we can inline bitops), so for now
+- * we'll just assume we never need additional per-bit slowdowns.
++ * NOTE:  to clock "as fast as we can", set spi_device.max_speed_hz
++ * and spi_transfer.speed_hz to 0.
++ * Otherwise this is a function of the requested device clock.
++ * Software overhead means we usually have trouble
++ * reaching even one Mbit/sec (except when we can inline bitops). So on small
++ * embedded devices with fast SPI slaves you usually don't need a delay.
+  */
+-#define spidelay(nsecs)	do {} while (0)
++static inline void spidelay(unsigned nsecs)
++{
++#ifdef NEED_SPIDELAY
++	if (unlikely(nsecs))
++		ndelay(nsecs);
++#endif /* NEED_SPIDELAY */
++}
+ 
+ #include "spi_bitbang_txrx.h"
+ 
diff --git a/target/linux/generic/patches-2.6.38/921-gpio_spi_driver.patch b/target/linux/generic/patches-2.6.38/921-gpio_spi_driver.patch
new file mode 100644
index 0000000000..3d85069566
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/921-gpio_spi_driver.patch
@@ -0,0 +1,373 @@
+THIS CODE IS DEPRECATED.
+
+Please use the new mainline SPI-GPIO driver, as of 2.6.29.
+
+--mb
+
+
+
+---
+ drivers/spi/Kconfig              |    9 +
+ drivers/spi/Makefile             |    1 
+ drivers/spi/spi_gpio_old.c       |  251 +++++++++++++++++++++++++++++++++++++++
+ include/linux/spi/spi_gpio_old.h |   73 +++++++++++
+ 4 files changed, 334 insertions(+)
+
+--- /dev/null
++++ b/include/linux/spi/spi_gpio_old.h
+@@ -0,0 +1,73 @@
++/*
++ * spi_gpio interface to platform code
++ *
++ * Copyright (c) 2008 Piotr Skamruk
++ * Copyright (c) 2008 Michael Buesch
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++#ifndef _LINUX_SPI_SPI_GPIO
++#define _LINUX_SPI_SPI_GPIO
++
++#include <linux/types.h>
++#include <linux/spi/spi.h>
++
++
++/**
++ * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device.
++ *
++ * This structure holds information about a GPIO-based SPI device.
++ *
++ * @pin_clk: The GPIO pin number of the CLOCK pin.
++ *
++ * @pin_miso: The GPIO pin number of the MISO pin.
++ *
++ * @pin_mosi: The GPIO pin number of the MOSI pin.
++ *
++ * @pin_cs: The GPIO pin number of the CHIPSELECT pin.
++ *
++ * @cs_activelow: If true, the chip is selected when the CS line is low.
++ *
++ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging.
++ *                Note that doing no delay is not standards compliant,
++ *                but it might be needed to speed up transfers on some
++ *                slow embedded machines.
++ *
++ * @boardinfo_setup: This callback is called after the
++ *                   SPI master device was registered, but before the
++ *                   device is registered.
++ * @boardinfo_setup_data: Data argument passed to boardinfo_setup().
++ */
++struct spi_gpio_platform_data {
++	unsigned int pin_clk;
++	unsigned int pin_miso;
++	unsigned int pin_mosi;
++	unsigned int pin_cs;
++	bool cs_activelow;
++	bool no_spi_delay;
++	int (*boardinfo_setup)(struct spi_board_info *bi,
++			       struct spi_master *master,
++			       void *data);
++	void *boardinfo_setup_data;
++};
++
++/**
++ * SPI_GPIO_PLATDEV_NAME - The platform device name string.
++ *
++ * The name string that has to be used for platform_device_alloc
++ * when allocating a spi-gpio device.
++ */
++#define SPI_GPIO_PLATDEV_NAME	"spi-gpio"
++
++/**
++ * spi_gpio_next_id - Get another platform device ID number.
++ *
++ * This returns the next platform device ID number that has to be used
++ * for platform_device_alloc. The ID is opaque and should not be used for
++ * anything else.
++ */
++int spi_gpio_next_id(void);
++
++#endif /* _LINUX_SPI_SPI_GPIO */
+--- /dev/null
++++ b/drivers/spi/spi_gpio_old.c
+@@ -0,0 +1,251 @@
++/*
++ * Bitbanging SPI bus driver using GPIO API
++ *
++ * Copyright (c) 2008 Piotr Skamruk
++ * Copyright (c) 2008 Michael Buesch
++ *
++ * based on spi_s3c2410_gpio.c
++ *   Copyright (c) 2006 Ben Dooks
++ *   Copyright (c) 2006 Simtec Electronics
++ * and on i2c-gpio.c
++ *   Copyright (C) 2007 Atmel Corporation
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/spinlock.h>
++#include <linux/workqueue.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/spi/spi.h>
++#include <linux/spi/spi_bitbang.h>
++#include <linux/spi/spi_gpio_old.h>
++#include <linux/gpio.h>
++#include <asm/atomic.h>
++
++
++struct spi_gpio {
++	struct spi_bitbang bitbang;
++	struct spi_gpio_platform_data *info;
++	struct platform_device *pdev;
++	struct spi_board_info bi;
++};
++
++
++static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev)
++{
++	return dev->controller_data;
++}
++
++static inline void setsck(struct spi_device *dev, int val)
++{
++	struct spi_gpio *sp = spidev_to_sg(dev);
++	gpio_set_value(sp->info->pin_clk, val ? 1 : 0);
++}
++
++static inline void setmosi(struct spi_device *dev, int val)
++{
++	struct spi_gpio *sp = spidev_to_sg(dev);
++	gpio_set_value(sp->info->pin_mosi, val ? 1 : 0);
++}
++
++static inline u32 getmiso(struct spi_device *dev)
++{
++	struct spi_gpio *sp = spidev_to_sg(dev);
++	return gpio_get_value(sp->info->pin_miso) ? 1 : 0;
++}
++
++static inline void do_spidelay(struct spi_device *dev, unsigned nsecs)
++{
++	struct spi_gpio *sp = spidev_to_sg(dev);
++
++	if (!sp->info->no_spi_delay)
++		ndelay(nsecs);
++}
++
++#define spidelay(nsecs) do {					\
++	/* Steal the spi_device pointer from our caller.	\
++	 * The bitbang-API should probably get fixed here... */	\
++	do_spidelay(spi, nsecs);				\
++  } while (0)
++
++#define EXPAND_BITBANG_TXRX
++#include "spi_bitbang_txrx.h"
++
++static u32 spi_gpio_txrx_mode0(struct spi_device *spi,
++			       unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits);
++}
++
++static u32 spi_gpio_txrx_mode1(struct spi_device *spi,
++			       unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha1(spi, nsecs, 0, 0, word, bits);
++}
++
++static u32 spi_gpio_txrx_mode2(struct spi_device *spi,
++			       unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha0(spi, nsecs, 1, 0, word, bits);
++}
++
++static u32 spi_gpio_txrx_mode3(struct spi_device *spi,
++			       unsigned nsecs, u32 word, u8 bits)
++{
++	return bitbang_txrx_be_cpha1(spi, nsecs, 1, 0, word, bits);
++}
++
++static void spi_gpio_chipselect(struct spi_device *dev, int on)
++{
++	struct spi_gpio *sp = spidev_to_sg(dev);
++
++	if (sp->info->cs_activelow)
++		on = !on;
++	gpio_set_value(sp->info->pin_cs, on ? 1 : 0);
++}
++
++static int spi_gpio_probe(struct platform_device *pdev)
++{
++	struct spi_master *master;
++	struct spi_gpio_platform_data *pdata;
++	struct spi_gpio *sp;
++	struct spi_device *spidev;
++	int err;
++
++	pdata = pdev->dev.platform_data;
++	if (!pdata)
++		return -ENXIO;
++
++	err = -ENOMEM;
++	master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio));
++	if (!master)
++		goto err_alloc_master;
++
++	sp = spi_master_get_devdata(master);
++	platform_set_drvdata(pdev, sp);
++	sp->info = pdata;
++
++	err = gpio_request(pdata->pin_clk, "spi_clock");
++	if (err)
++		goto err_request_clk;
++	err = gpio_request(pdata->pin_mosi, "spi_mosi");
++	if (err)
++		goto err_request_mosi;
++	err = gpio_request(pdata->pin_miso, "spi_miso");
++	if (err)
++		goto err_request_miso;
++	err = gpio_request(pdata->pin_cs, "spi_cs");
++	if (err)
++		goto err_request_cs;
++
++	sp->bitbang.master = spi_master_get(master);
++	sp->bitbang.master->bus_num = -1;
++	sp->bitbang.master->num_chipselect = 1;
++	sp->bitbang.chipselect = spi_gpio_chipselect;
++	sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0;
++	sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1;
++	sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2;
++	sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3;
++
++	gpio_direction_output(pdata->pin_clk, 0);
++	gpio_direction_output(pdata->pin_mosi, 0);
++	gpio_direction_output(pdata->pin_cs,
++			      pdata->cs_activelow ? 1 : 0);
++	gpio_direction_input(pdata->pin_miso);
++
++	err = spi_bitbang_start(&sp->bitbang);
++	if (err)
++		goto err_no_bitbang;
++	err = pdata->boardinfo_setup(&sp->bi, master,
++				     pdata->boardinfo_setup_data);
++	if (err)
++		goto err_bi_setup;
++	sp->bi.controller_data = sp;
++	spidev = spi_new_device(master, &sp->bi);
++	if (!spidev)
++		goto err_new_dev;
++
++	return 0;
++
++err_new_dev:
++err_bi_setup:
++	spi_bitbang_stop(&sp->bitbang);
++err_no_bitbang:
++	spi_master_put(sp->bitbang.master);
++	gpio_free(pdata->pin_cs);
++err_request_cs:
++	gpio_free(pdata->pin_miso);
++err_request_miso:
++	gpio_free(pdata->pin_mosi);
++err_request_mosi:
++	gpio_free(pdata->pin_clk);
++err_request_clk:
++	kfree(master);
++
++err_alloc_master:
++	return err;
++}
++
++static int __devexit spi_gpio_remove(struct platform_device *pdev)
++{
++	struct spi_gpio *sp;
++	struct spi_gpio_platform_data *pdata;
++
++	pdata = pdev->dev.platform_data;
++	sp = platform_get_drvdata(pdev);
++
++	gpio_free(pdata->pin_clk);
++	gpio_free(pdata->pin_mosi);
++	gpio_free(pdata->pin_miso);
++	gpio_free(pdata->pin_cs);
++	spi_bitbang_stop(&sp->bitbang);
++	spi_master_put(sp->bitbang.master);
++
++	return 0;
++}
++
++static struct platform_driver spi_gpio_driver = {
++	.driver		= {
++		.name	= SPI_GPIO_PLATDEV_NAME,
++		.owner	= THIS_MODULE,
++	},
++	.probe		= spi_gpio_probe,
++	.remove		= __devexit_p(spi_gpio_remove),
++};
++
++int spi_gpio_next_id(void)
++{
++	static atomic_t counter = ATOMIC_INIT(-1);
++
++	return atomic_inc_return(&counter);
++}
++EXPORT_SYMBOL(spi_gpio_next_id);
++
++static int __init spi_gpio_init(void)
++{
++	int err;
++
++	err = platform_driver_register(&spi_gpio_driver);
++	if (err)
++		printk(KERN_ERR "spi-gpio: register failed: %d\n", err);
++
++	return err;
++}
++module_init(spi_gpio_init);
++
++static void __exit spi_gpio_exit(void)
++{
++	platform_driver_unregister(&spi_gpio_driver);
++}
++module_exit(spi_gpio_exit);
++
++MODULE_AUTHOR("Piot Skamruk <piotr.skamruk at gmail.com>");
++MODULE_AUTHOR("Michael Buesch");
++MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver");
++MODULE_LICENSE("GPL v2");
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -169,6 +169,15 @@ config SPI_IMX_VER_0_7
+ config SPI_IMX_VER_2_3
+ 	def_bool y if ARCH_MX51 || ARCH_MX53
+ 
++config SPI_GPIO_OLD
++	tristate "Old GPIO API based bitbanging SPI controller (DEPRECATED)"
++	depends on SPI_MASTER && GENERIC_GPIO
++	select SPI_BITBANG
++	help
++	  This code is deprecated. Please use the new mainline SPI-GPIO driver.
++
++	  If unsure, say N.
++
+ config SPI_IMX
+ 	tristate "Freescale i.MX SPI controllers"
+ 	depends on ARCH_MXC
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -23,6 +23,7 @@ dw_spi_midpci-objs			:= dw_spi_pci.o dw_
+ obj-$(CONFIG_SPI_DW_MMIO)		+= dw_spi_mmio.o
+ obj-$(CONFIG_SPI_EP93XX)		+= ep93xx_spi.o
+ obj-$(CONFIG_SPI_GPIO)			+= spi_gpio.o
++obj-$(CONFIG_SPI_GPIO_OLD)		+= spi_gpio_old.o
+ obj-$(CONFIG_SPI_IMX)			+= spi_imx.o
+ obj-$(CONFIG_SPI_LM70_LLP)		+= spi_lm70llp.o
+ obj-$(CONFIG_SPI_PXA2XX)		+= pxa2xx_spi.o
diff --git a/target/linux/generic/patches-2.6.38/922-gpiommc.patch b/target/linux/generic/patches-2.6.38/922-gpiommc.patch
new file mode 100644
index 0000000000..e925e57204
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/922-gpiommc.patch
@@ -0,0 +1,843 @@
+--- /dev/null
++++ b/drivers/mmc/host/gpiommc.c
+@@ -0,0 +1,608 @@
++/*
++ * Driver an MMC/SD card on a bitbanging GPIO SPI bus.
++ * This module hooks up the mmc_spi and spi_gpio modules and also
++ * provides a configfs interface.
++ *
++ * Copyright 2008 Michael Buesch <mb@bu3sch.de>
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++
++#include <linux/mmc/gpiommc.h>
++#include <linux/platform_device.h>
++#include <linux/list.h>
++#include <linux/mutex.h>
++#include <linux/spi/spi_gpio_old.h>
++#include <linux/configfs.h>
++#include <linux/gpio.h>
++#include <asm/atomic.h>
++
++
++#define PFX				"gpio-mmc: "
++
++
++struct gpiommc_device {
++	struct platform_device *pdev;
++	struct platform_device *spi_pdev;
++	struct spi_board_info boardinfo;
++};
++
++
++MODULE_DESCRIPTION("GPIO based MMC driver");
++MODULE_AUTHOR("Michael Buesch");
++MODULE_LICENSE("GPL");
++
++
++static int gpiommc_boardinfo_setup(struct spi_board_info *bi,
++				   struct spi_master *master,
++				   void *data)
++{
++	struct gpiommc_device *d = data;
++	struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data;
++
++	/* Bind the SPI master to the MMC-SPI host driver. */
++	strlcpy(bi->modalias, "mmc_spi", sizeof(bi->modalias));
++
++	bi->max_speed_hz = pdata->max_bus_speed;
++	bi->bus_num = master->bus_num;
++	bi->mode = pdata->mode;
++
++	return 0;
++}
++
++static int gpiommc_probe(struct platform_device *pdev)
++{
++	struct gpiommc_platform_data *mmc_pdata = pdev->dev.platform_data;
++	struct spi_gpio_platform_data spi_pdata;
++	struct gpiommc_device *d;
++	int err;
++
++	err = -ENXIO;
++	if (!mmc_pdata)
++		goto error;
++
++#ifdef CONFIG_MMC_SPI_MODULE
++	err = request_module("mmc_spi");
++	if (err) {
++		printk(KERN_WARNING PFX
++		       "Failed to request mmc_spi module.\n");
++	}
++#endif /* CONFIG_MMC_SPI_MODULE */
++
++	/* Allocate the GPIO-MMC device */
++	err = -ENOMEM;
++	d = kzalloc(sizeof(*d), GFP_KERNEL);
++	if (!d)
++		goto error;
++	d->pdev = pdev;
++
++	/* Create the SPI-GPIO device */
++	d->spi_pdev = platform_device_alloc(SPI_GPIO_PLATDEV_NAME,
++					    spi_gpio_next_id());
++	if (!d->spi_pdev)
++		goto err_free_d;
++
++	memset(&spi_pdata, 0, sizeof(spi_pdata));
++	spi_pdata.pin_clk = mmc_pdata->pins.gpio_clk;
++	spi_pdata.pin_miso = mmc_pdata->pins.gpio_do;
++	spi_pdata.pin_mosi = mmc_pdata->pins.gpio_di;
++	spi_pdata.pin_cs = mmc_pdata->pins.gpio_cs;
++	spi_pdata.cs_activelow = mmc_pdata->pins.cs_activelow;
++	spi_pdata.no_spi_delay = mmc_pdata->no_spi_delay;
++	spi_pdata.boardinfo_setup = gpiommc_boardinfo_setup;
++	spi_pdata.boardinfo_setup_data = d;
++
++	err = platform_device_add_data(d->spi_pdev, &spi_pdata,
++				       sizeof(spi_pdata));
++	if (err)
++		goto err_free_pdev;
++	err = platform_device_add(d->spi_pdev);
++	if (err)
++		goto err_free_pdata;
++	platform_set_drvdata(pdev, d);
++
++	printk(KERN_INFO PFX "MMC-Card \"%s\" "
++	       "attached to GPIO pins di=%u, do=%u, clk=%u, cs=%u\n",
++	       mmc_pdata->name, mmc_pdata->pins.gpio_di,
++	       mmc_pdata->pins.gpio_do,
++	       mmc_pdata->pins.gpio_clk,
++	       mmc_pdata->pins.gpio_cs);
++
++	return 0;
++
++err_free_pdata:
++	kfree(d->spi_pdev->dev.platform_data);
++	d->spi_pdev->dev.platform_data = NULL;
++err_free_pdev:
++	platform_device_put(d->spi_pdev);
++err_free_d:
++	kfree(d);
++error:
++	return err;
++}
++
++static int gpiommc_remove(struct platform_device *pdev)
++{
++	struct gpiommc_device *d = platform_get_drvdata(pdev);
++	struct gpiommc_platform_data *pdata = d->pdev->dev.platform_data;
++
++	platform_device_unregister(d->spi_pdev);
++	printk(KERN_INFO PFX "GPIO based MMC-Card \"%s\" removed\n",
++	       pdata->name);
++	platform_device_put(d->spi_pdev);
++
++	return 0;
++}
++
++#ifdef CONFIG_GPIOMMC_CONFIGFS
++
++/* A device that was created through configfs */
++struct gpiommc_configfs_device {
++	struct config_item item;
++	/* The platform device, after registration. */
++	struct platform_device *pdev;
++	/* The configuration */
++	struct gpiommc_platform_data pdata;
++};
++
++#define GPIO_INVALID	-1
++
++static inline bool gpiommc_is_registered(struct gpiommc_configfs_device *dev)
++{
++	return (dev->pdev != NULL);
++}
++
++static inline struct gpiommc_configfs_device *ci_to_gpiommc(struct config_item *item)
++{
++	return item ? container_of(item, struct gpiommc_configfs_device, item) : NULL;
++}
++
++static struct configfs_attribute gpiommc_attr_DI = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "gpio_data_in",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_DO = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "gpio_data_out",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_CLK = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "gpio_clock",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_CS = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "gpio_chipselect",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_CS_activelow = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "gpio_chipselect_activelow",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_spimode = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "spi_mode",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_spidelay = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "spi_delay",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_max_bus_speed = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "max_bus_speed",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute gpiommc_attr_register = {
++	.ca_owner = THIS_MODULE,
++	.ca_name = "register",
++	.ca_mode = S_IRUGO | S_IWUSR,
++};
++
++static struct configfs_attribute *gpiommc_config_attrs[] = {
++	&gpiommc_attr_DI,
++	&gpiommc_attr_DO,
++	&gpiommc_attr_CLK,
++	&gpiommc_attr_CS,
++	&gpiommc_attr_CS_activelow,
++	&gpiommc_attr_spimode,
++	&gpiommc_attr_spidelay,
++	&gpiommc_attr_max_bus_speed,
++	&gpiommc_attr_register,
++	NULL,
++};
++
++static ssize_t gpiommc_config_attr_show(struct config_item *item,
++					struct configfs_attribute *attr,
++					char *page)
++{
++	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
++	ssize_t count = 0;
++	unsigned int gpio;
++	int err = 0;
++
++	if (attr == &gpiommc_attr_DI) {
++		gpio = dev->pdata.pins.gpio_di;
++		if (gpio == GPIO_INVALID)
++			count = snprintf(page, PAGE_SIZE, "not configured\n");
++		else
++			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_DO) {
++		gpio = dev->pdata.pins.gpio_do;
++		if (gpio == GPIO_INVALID)
++			count = snprintf(page, PAGE_SIZE, "not configured\n");
++		else
++			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_CLK) {
++		gpio = dev->pdata.pins.gpio_clk;
++		if (gpio == GPIO_INVALID)
++			count = snprintf(page, PAGE_SIZE, "not configured\n");
++		else
++			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_CS) {
++		gpio = dev->pdata.pins.gpio_cs;
++		if (gpio == GPIO_INVALID)
++			count = snprintf(page, PAGE_SIZE, "not configured\n");
++		else
++			count = snprintf(page, PAGE_SIZE, "%u\n", gpio);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_CS_activelow) {
++		count = snprintf(page, PAGE_SIZE, "%u\n",
++				 dev->pdata.pins.cs_activelow);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_spimode) {
++		count = snprintf(page, PAGE_SIZE, "%u\n",
++				 dev->pdata.mode);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_spidelay) {
++		count = snprintf(page, PAGE_SIZE, "%u\n",
++				 !dev->pdata.no_spi_delay);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_max_bus_speed) {
++		count = snprintf(page, PAGE_SIZE, "%u\n",
++				 dev->pdata.max_bus_speed);
++		goto out;
++	}
++	if (attr == &gpiommc_attr_register) {
++		count = snprintf(page, PAGE_SIZE, "%u\n",
++				 gpiommc_is_registered(dev));
++		goto out;
++	}
++	WARN_ON(1);
++	err = -ENOSYS;
++out:
++	return err ? err : count;
++}
++
++static int gpiommc_do_register(struct gpiommc_configfs_device *dev,
++			       const char *name)
++{
++	int err;
++
++	if (gpiommc_is_registered(dev))
++		return 0;
++
++	if (!gpio_is_valid(dev->pdata.pins.gpio_di) ||
++	    !gpio_is_valid(dev->pdata.pins.gpio_do) ||
++	    !gpio_is_valid(dev->pdata.pins.gpio_clk) ||
++	    !gpio_is_valid(dev->pdata.pins.gpio_cs)) {
++		printk(KERN_ERR PFX
++		       "configfs: Invalid GPIO pin number(s)\n");
++		return -EINVAL;
++	}
++
++	strlcpy(dev->pdata.name, name,
++		sizeof(dev->pdata.name));
++
++	dev->pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME,
++					  gpiommc_next_id());
++	if (!dev->pdev)
++		return -ENOMEM;
++	err = platform_device_add_data(dev->pdev, &dev->pdata,
++				       sizeof(dev->pdata));
++	if (err) {
++		platform_device_put(dev->pdev);
++		return err;
++	}
++	err = platform_device_add(dev->pdev);
++	if (err) {
++		platform_device_put(dev->pdev);
++		return err;
++	}
++
++	return 0;
++}
++
++static void gpiommc_do_unregister(struct gpiommc_configfs_device *dev)
++{
++	if (!gpiommc_is_registered(dev))
++		return;
++
++	platform_device_unregister(dev->pdev);
++	dev->pdev = NULL;
++}
++
++static ssize_t gpiommc_config_attr_store(struct config_item *item,
++					 struct configfs_attribute *attr,
++					 const char *page, size_t count)
++{
++	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
++	int err = -EINVAL;
++	unsigned long data;
++
++	if (attr == &gpiommc_attr_register) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (data == 1)
++			err = gpiommc_do_register(dev, item->ci_name);
++		if (data == 0) {
++			gpiommc_do_unregister(dev);
++			err = 0;
++		}
++		goto out;
++	}
++
++	if (gpiommc_is_registered(dev)) {
++		/* The rest of the config parameters can only be set
++		 * as long as the device is not registered, yet. */
++		err = -EBUSY;
++		goto out;
++	}
++
++	if (attr == &gpiommc_attr_DI) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (!gpio_is_valid(data))
++			goto out;
++		dev->pdata.pins.gpio_di = data;
++		err = 0;
++		goto out;
++	}
++	if (attr == &gpiommc_attr_DO) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (!gpio_is_valid(data))
++			goto out;
++		dev->pdata.pins.gpio_do = data;
++		err = 0;
++		goto out;
++	}
++	if (attr == &gpiommc_attr_CLK) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (!gpio_is_valid(data))
++			goto out;
++		dev->pdata.pins.gpio_clk = data;
++		err = 0;
++		goto out;
++	}
++	if (attr == &gpiommc_attr_CS) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (!gpio_is_valid(data))
++			goto out;
++		dev->pdata.pins.gpio_cs = data;
++		err = 0;
++		goto out;
++	}
++	if (attr == &gpiommc_attr_CS_activelow) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (data != 0 && data != 1)
++			goto out;
++		dev->pdata.pins.cs_activelow = data;
++		err = 0;
++		goto out;
++	}
++	if (attr == &gpiommc_attr_spimode) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		switch (data) {
++		case 0:
++			dev->pdata.mode = SPI_MODE_0;
++			break;
++		case 1:
++			dev->pdata.mode = SPI_MODE_1;
++			break;
++		case 2:
++			dev->pdata.mode = SPI_MODE_2;
++			break;
++		case 3:
++			dev->pdata.mode = SPI_MODE_3;
++			break;
++		default:
++			goto out;
++		}
++		err = 0;
++		goto out;
++	}
++	if (attr == &gpiommc_attr_spidelay) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (data != 0 && data != 1)
++			goto out;
++		dev->pdata.no_spi_delay = !data;
++		err = 0;
++		goto out;
++	}
++	if (attr == &gpiommc_attr_max_bus_speed) {
++		err = strict_strtoul(page, 10, &data);
++		if (err)
++			goto out;
++		err = -EINVAL;
++		if (data > UINT_MAX)
++			goto out;
++		dev->pdata.max_bus_speed = data;
++		err = 0;
++		goto out;
++	}
++	WARN_ON(1);
++	err = -ENOSYS;
++out:
++	return err ? err : count;
++}
++
++static void gpiommc_config_item_release(struct config_item *item)
++{
++	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
++
++	kfree(dev);
++}
++
++static struct configfs_item_operations gpiommc_config_item_ops = {
++	.release		= gpiommc_config_item_release,
++	.show_attribute		= gpiommc_config_attr_show,
++	.store_attribute	= gpiommc_config_attr_store,
++};
++
++static struct config_item_type gpiommc_dev_ci_type = {
++	.ct_item_ops	= &gpiommc_config_item_ops,
++	.ct_attrs	= gpiommc_config_attrs,
++	.ct_owner	= THIS_MODULE,
++};
++
++static struct config_item *gpiommc_make_item(struct config_group *group,
++					     const char *name)
++{
++	struct gpiommc_configfs_device *dev;
++
++	if (strlen(name) > GPIOMMC_MAX_NAMELEN) {
++		printk(KERN_ERR PFX "configfs: device name too long\n");
++		return NULL;
++	}
++
++	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
++	if (!dev)
++		return NULL;
++
++	config_item_init_type_name(&dev->item, name,
++				   &gpiommc_dev_ci_type);
++
++	/* Assign default configuration */
++	dev->pdata.pins.gpio_di = GPIO_INVALID;
++	dev->pdata.pins.gpio_do = GPIO_INVALID;
++	dev->pdata.pins.gpio_clk = GPIO_INVALID;
++	dev->pdata.pins.gpio_cs = GPIO_INVALID;
++	dev->pdata.pins.cs_activelow = 1;
++	dev->pdata.mode = SPI_MODE_0;
++	dev->pdata.no_spi_delay = 0;
++	dev->pdata.max_bus_speed = 5000000; /* 5 MHz */
++
++	return &(dev->item);
++}
++
++static void gpiommc_drop_item(struct config_group *group,
++			      struct config_item *item)
++{
++	struct gpiommc_configfs_device *dev = ci_to_gpiommc(item);
++
++	gpiommc_do_unregister(dev);
++	kfree(dev);
++}
++
++static struct configfs_group_operations gpiommc_ct_group_ops = {
++	.make_item	= gpiommc_make_item,
++	.drop_item	= gpiommc_drop_item,
++};
++
++static struct config_item_type gpiommc_ci_type = {
++	.ct_group_ops	= &gpiommc_ct_group_ops,
++	.ct_owner	= THIS_MODULE,
++};
++
++static struct configfs_subsystem gpiommc_subsys = {
++	.su_group = {
++		.cg_item = {
++			.ci_namebuf = GPIOMMC_PLATDEV_NAME,
++			.ci_type = &gpiommc_ci_type,
++		},
++	},
++	.su_mutex = __MUTEX_INITIALIZER(gpiommc_subsys.su_mutex),
++};
++
++#endif /* CONFIG_GPIOMMC_CONFIGFS */
++
++static struct platform_driver gpiommc_plat_driver = {
++	.probe	= gpiommc_probe,
++	.remove	= gpiommc_remove,
++	.driver	= {
++		.name	= GPIOMMC_PLATDEV_NAME,
++		.owner	= THIS_MODULE,
++	},
++};
++
++int gpiommc_next_id(void)
++{
++	static atomic_t counter = ATOMIC_INIT(-1);
++
++	return atomic_inc_return(&counter);
++}
++EXPORT_SYMBOL(gpiommc_next_id);
++
++static int __init gpiommc_modinit(void)
++{
++	int err;
++
++	err = platform_driver_register(&gpiommc_plat_driver);
++	if (err)
++		return err;
++
++#ifdef CONFIG_GPIOMMC_CONFIGFS
++	config_group_init(&gpiommc_subsys.su_group);
++	err = configfs_register_subsystem(&gpiommc_subsys);
++	if (err) {
++		platform_driver_unregister(&gpiommc_plat_driver);
++		return err;
++	}
++#endif /* CONFIG_GPIOMMC_CONFIGFS */
++
++	return 0;
++}
++module_init(gpiommc_modinit);
++
++static void __exit gpiommc_modexit(void)
++{
++#ifdef CONFIG_GPIOMMC_CONFIGFS
++	configfs_unregister_subsystem(&gpiommc_subsys);
++#endif
++	platform_driver_unregister(&gpiommc_plat_driver);
++}
++module_exit(gpiommc_modexit);
+--- a/drivers/mmc/host/Kconfig
++++ b/drivers/mmc/host/Kconfig
+@@ -437,6 +437,31 @@ config MMC_TMIO
+ 	  This provides support for the SD/MMC cell found in TC6393XB,
+ 	  T7L66XB and also HTC ASIC3
+ 
++config GPIOMMC
++	tristate "MMC/SD over GPIO-based SPI"
++	depends on MMC && MMC_SPI && SPI_GPIO_OLD
++	help
++	  This driver hooks up the mmc_spi and spi_gpio modules so that
++	  MMC/SD cards can be used on a GPIO based bus by bitbanging
++	  the SPI protocol in software.
++
++	  This driver provides a configfs interface to dynamically create
++	  and destroy GPIO-based MMC/SD card devices. It also provides
++	  a platform device interface API.
++	  See Documentation/gpiommc.txt for details.
++
++	  The module will be called gpiommc.
++
++	  If unsure, say N.
++
++config GPIOMMC_CONFIGFS
++	bool
++	depends on GPIOMMC && CONFIGFS_FS
++	default y
++	help
++	  This option automatically enables configfs support for gpiommc
++	  if configfs is available.
++
+ config MMC_CB710
+ 	tristate "ENE CB710 MMC/SD Interface support"
+ 	depends on PCI
+--- a/drivers/mmc/host/Makefile
++++ b/drivers/mmc/host/Makefile
+@@ -30,6 +30,7 @@ obj-$(CONFIG_MMC_SDRICOH_CS)	+= sdricoh_
+ obj-$(CONFIG_MMC_TMIO)		+= tmio_mmc.o
+ obj-$(CONFIG_MMC_CB710)	+= cb710-mmc.o
+ obj-$(CONFIG_MMC_VIA_SDMMC)	+= via-sdmmc.o
++obj-$(CONFIG_GPIOMMC)		+= gpiommc.o
+ obj-$(CONFIG_SDH_BFIN)		+= bfin_sdh.o
+ obj-$(CONFIG_MMC_DW)		+= dw_mmc.o
+ obj-$(CONFIG_MMC_SH_MMCIF)	+= sh_mmcif.o
+--- /dev/null
++++ b/include/linux/mmc/gpiommc.h
+@@ -0,0 +1,71 @@
++/*
++ * Device driver for MMC/SD cards driven over a GPIO bus.
++ *
++ * Copyright (c) 2008 Michael Buesch
++ *
++ * Licensed under the GNU/GPL version 2.
++ */
++#ifndef LINUX_GPIOMMC_H_
++#define LINUX_GPIOMMC_H_
++
++#include <linux/types.h>
++
++
++#define GPIOMMC_MAX_NAMELEN		15
++#define GPIOMMC_MAX_NAMELEN_STR		__stringify(GPIOMMC_MAX_NAMELEN)
++
++/**
++ * struct gpiommc_pins - Hardware pin assignments
++ *
++ * @gpio_di: The GPIO number of the DATA IN pin
++ * @gpio_do: The GPIO number of the DATA OUT pin
++ * @gpio_clk: The GPIO number of the CLOCK pin
++ * @gpio_cs: The GPIO number of the CHIPSELECT pin
++ * @cs_activelow: If true, the chip is considered selected if @gpio_cs is low.
++ */
++struct gpiommc_pins {
++	unsigned int gpio_di;
++	unsigned int gpio_do;
++	unsigned int gpio_clk;
++	unsigned int gpio_cs;
++	bool cs_activelow;
++};
++
++/**
++ * struct gpiommc_platform_data - Platform data for a MMC-over-SPI-GPIO device.
++ *
++ * @name: The unique name string of the device.
++ * @pins: The hardware pin assignments.
++ * @mode: The hardware mode. This is either SPI_MODE_0,
++ *        SPI_MODE_1, SPI_MODE_2 or SPI_MODE_3. See the SPI documentation.
++ * @no_spi_delay: Do not use delays in the lowlevel SPI bitbanging code.
++ *                This is not standards compliant, but may be required for some
++ *                embedded machines to gain reasonable speed.
++ * @max_bus_speed: The maximum speed of the SPI bus, in Hertz.
++ */
++struct gpiommc_platform_data {
++	char name[GPIOMMC_MAX_NAMELEN + 1];
++	struct gpiommc_pins pins;
++	u8 mode;
++	bool no_spi_delay;
++	unsigned int max_bus_speed;
++};
++
++/**
++ * GPIOMMC_PLATDEV_NAME - The platform device name string.
++ *
++ * The name string that has to be used for platform_device_alloc
++ * when allocating a gpiommc device.
++ */
++#define GPIOMMC_PLATDEV_NAME	"gpiommc"
++
++/**
++ * gpiommc_next_id - Get another platform device ID number.
++ *
++ * This returns the next platform device ID number that has to be used
++ * for platform_device_alloc. The ID is opaque and should not be used for
++ * anything else.
++ */
++int gpiommc_next_id(void);
++
++#endif /* LINUX_GPIOMMC_H_ */
+--- /dev/null
++++ b/Documentation/gpiommc.txt
+@@ -0,0 +1,97 @@
++GPIOMMC - Driver for an MMC/SD card on a bitbanging GPIO SPI bus
++================================================================
++
++The gpiommc module hooks up the mmc_spi and spi_gpio modules for running an
++MMC or SD card on GPIO pins.
++
++Two interfaces for registering a new MMC/SD card device are provided:
++A static platform-device based mechanism and a dynamic configfs based interface.
++
++
++Registering devices via platform-device
++=======================================
++
++The platform-device interface is used for registering MMC/SD devices that are
++part of the hardware platform. This is most useful only for embedded machines
++with MMC/SD devices statically connected to the platform GPIO bus.
++
++The data structures are declared in <linux/mmc/gpiommc.h>.
++
++To register a new device, define an instance of struct gpiommc_platform_data.
++This structure holds any information about how the device is hooked up to the
++GPIO pins and what hardware modes the device supports. See the docbook-style
++documentation in the header file for more information on the struct fields.
++
++Then allocate a new instance of a platform device by doing:
++
++	pdev = platform_device_alloc(GPIOMMC_PLATDEV_NAME, gpiommc_next_id());
++
++This will allocate the platform device data structures and hook it up to the
++gpiommc driver.
++Then add the gpiommc_platform_data to the platform device.
++
++	err = platform_device_add_data(pdev, pdata, sizeof(struct gpiommc_platform_data));
++
++You may free the local instance of struct gpiommc_platform_data now. (So the
++struct may be allocated on the stack, too).
++Now simply register the platform device.
++
++	err = platform_device_add(pdev);
++
++Done. The gpiommc probe routine will be invoked now and you should see a kernel
++log message for the added device.
++
++
++Registering devices via configfs
++================================
++
++MMC/SD cards connected via GPIO often are a pretty dynamic thing, as for example
++selfmade hacks for soldering an MMC/SD card to standard GPIO pins on embedded
++hardware are a common situation.
++So we provide a dynamic interface to conveniently handle adding and removing
++devices from userspace, without the need to recompile the kernel.
++
++The "gpiommc" subdirectory at the configfs mountpoint is used for handling
++the dynamic configuration.
++
++To create a new device, it must first be allocated with mkdir.
++The following command will allocate a device named "my_mmc":
++	mkdir /config/gpiommc/my_mmc
++
++There are several configuration files available in the new
++/config/gpiommc/my_mmc/ directory:
++
++gpio_data_in			= The SPI data-IN GPIO pin number.
++gpio_data_out			= The SPI data-OUT GPIO pin number.
++gpio_clock			= The SPI Clock GPIO pin number.
++gpio_chipselect			= The SPI Chipselect GPIO pin number.
++gpio_chipselect_activelow	= Boolean. If 0, Chipselect is active-HIGH.
++				  If 1, Chipselect is active-LOW.
++spi_mode			= The SPI data mode. Can be 0-3.
++spi_delay			= Enable all delays in the lowlevel bitbanging.
++max_bus_speed			= The maximum SPI bus speed. In Hertz.
++
++register			= Not a configuration parameter.
++				  Used to register the configured card
++				  with the kernel.
++
++The device must first get configured and then registered by writing "1" to
++the "register" file.
++The configuration parameters "gpio_data_in", "gpio_data_out", "gpio_clock"
++and "gpio_chipselect" are essential and _must_ be configured before writing
++"1" to the "register" file. The registration will fail, otherwise.
++
++The default values for the other parameters are:
++gpio_chipselect_activelow	= 1		(CS active-LOW)
++spi_mode			= 0		(SPI_MODE_0)
++spi_delay			= 1		(enabled)
++max_bus_speed			= 5000000	(5 Mhz)
++
++Configuration values can not be changed after registration. To unregister
++the device, write a "0" to the "register" file. The configuration can be
++changed again after unregistering.
++
++To completely remove the device, simply rmdir the directory
++(/config/gpiommc/my_mmc in this example).
++There's no need to first unregister the device before removing it. That will
++be done automatically.
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -2851,6 +2851,11 @@ T:	git git://git.kernel.org/pub/scm/linu
+ S:	Maintained
+ F:	drivers/media/video/gspca/
+ 
++GPIOMMC DRIVER
++P:	Michael Buesch
++M:	mb@bu3sch.de
++S:	Maintained
++
+ HARDWARE MONITORING
+ M:	Jean Delvare <khali@linux-fr.org>
+ M:	Guenter Roeck <guenter.roeck@ericsson.com>
diff --git a/target/linux/generic/patches-2.6.38/923-gpiommc-configfs-locking.patch b/target/linux/generic/patches-2.6.38/923-gpiommc-configfs-locking.patch
new file mode 100644
index 0000000000..2e4e820b2b
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/923-gpiommc-configfs-locking.patch
@@ -0,0 +1,58 @@
+The gpiommc configfs context structure needs locking, as configfs
+does not lock access between files.
+
+--- a/drivers/mmc/host/gpiommc.c
++++ b/drivers/mmc/host/gpiommc.c
+@@ -143,6 +143,8 @@ struct gpiommc_configfs_device {
+ 	struct platform_device *pdev;
+ 	/* The configuration */
+ 	struct gpiommc_platform_data pdata;
++	/* Mutex to protect this structure */
++	struct mutex mutex;
+ };
+ 
+ #define GPIO_INVALID	-1
+@@ -233,6 +235,8 @@ static ssize_t gpiommc_config_attr_show(
+ 	unsigned int gpio;
+ 	int err = 0;
+ 
++	mutex_lock(&dev->mutex);
++
+ 	if (attr == &gpiommc_attr_DI) {
+ 		gpio = dev->pdata.pins.gpio_di;
+ 		if (gpio == GPIO_INVALID)
+@@ -293,6 +297,8 @@ static ssize_t gpiommc_config_attr_show(
+ 	WARN_ON(1);
+ 	err = -ENOSYS;
+ out:
++	mutex_unlock(&dev->mutex);
++
+ 	return err ? err : count;
+ }
+ 
+@@ -352,6 +358,8 @@ static ssize_t gpiommc_config_attr_store
+ 	int err = -EINVAL;
+ 	unsigned long data;
+ 
++	mutex_lock(&dev->mutex);
++
+ 	if (attr == &gpiommc_attr_register) {
+ 		err = strict_strtoul(page, 10, &data);
+ 		if (err)
+@@ -477,6 +485,8 @@ static ssize_t gpiommc_config_attr_store
+ 	WARN_ON(1);
+ 	err = -ENOSYS;
+ out:
++	mutex_unlock(&dev->mutex);
++
+ 	return err ? err : count;
+ }
+ 
+@@ -513,6 +523,7 @@ static struct config_item *gpiommc_make_
+ 	if (!dev)
+ 		return NULL;
+ 
++	mutex_init(&dev->mutex);
+ 	config_item_init_type_name(&dev->item, name,
+ 				   &gpiommc_dev_ci_type);
+ 
diff --git a/target/linux/generic/patches-2.6.38/924-cs5535_gpio.patch b/target/linux/generic/patches-2.6.38/924-cs5535_gpio.patch
new file mode 100644
index 0000000000..69b4053a10
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/924-cs5535_gpio.patch
@@ -0,0 +1,102 @@
+--- a/drivers/staging/cs5535_gpio/cs5535_gpio.c
++++ b/drivers/staging/cs5535_gpio/cs5535_gpio.c
+@@ -15,6 +15,7 @@
+ #include <linux/kernel.h>
+ #include <linux/init.h>
+ #include <linux/cdev.h>
++#include <linux/device.h>
+ #include <linux/ioport.h>
+ #include <linux/pci.h>
+ 
+@@ -48,6 +49,7 @@ static struct pci_device_id divil_pci[]
+ MODULE_DEVICE_TABLE(pci, divil_pci);
+ 
+ static struct cdev cs5535_gpio_cdev;
++static struct class *cs5535_gpio_class;
+ 
+ /* reserve 32 entries even though some aren't usable */
+ #define CS5535_GPIO_COUNT	32
+@@ -66,9 +68,14 @@ static struct gpio_regmap rm[] =
+ 	{ 0x30, 0x00, '1', '0' },	/* GPIOx_READ_BACK / GPIOx_OUT_VAL */
+ 	{ 0x20, 0x20, 'I', 'i' },	/* GPIOx_IN_EN */
+ 	{ 0x04, 0x04, 'O', 'o' },	/* GPIOx_OUT_EN */
++	{ 0x10, 0x10, 'A', 'a' },	/* GPIOx_OUT_AUX1_SEL */
++	{ 0x14, 0x14, 'B', 'b' },	/* GPIOx_OUT_AUX2_SEL */
+ 	{ 0x08, 0x08, 't', 'T' },	/* GPIOx_OUT_OD_EN */
+ 	{ 0x18, 0x18, 'P', 'p' },	/* GPIOx_OUT_PU_EN */
+ 	{ 0x1c, 0x1c, 'D', 'd' },	/* GPIOx_OUT_PD_EN */
++	{ 0x24, 0x24, 'N', 'n' },	/* GPIOx_IN_INV_EN */
++	{ 0x0c, 0x0c, 'X', 'x' },	/* GPIOx_OUT_INV_EN */
++	{ 0x00, 0x00, 'H', 'L' },	/* GPIOx_OUT_VAL */
+ };
+ 
+ 
+@@ -177,7 +184,7 @@ static int __init cs5535_gpio_init(void)
+ {
+ 	dev_t	dev_id;
+ 	u32	low, hi;
+-	int	retval;
++	int	retval, i;
+ 
+ 	if (pci_dev_present(divil_pci) == 0) {
+ 		printk(KERN_WARNING NAME ": DIVIL not found\n");
+@@ -232,23 +239,54 @@ static int __init cs5535_gpio_init(void)
+ 		major = MAJOR(dev_id);
+ 	}
+ 
+-	if (retval) {
+-		release_region(gpio_base, CS5535_GPIO_SIZE);
+-		return -1;
+-	}
++	if (retval)
++		goto error;
+ 
+ 	printk(KERN_DEBUG NAME ": base=%#x mask=%#lx major=%d\n",
+ 	       gpio_base, mask, major);
+ 
+ 	cdev_init(&cs5535_gpio_cdev, &cs5535_gpio_fops);
+-	cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
++	retval = cdev_add(&cs5535_gpio_cdev, dev_id, CS5535_GPIO_COUNT);
++	if (retval) {
++		kobject_put(&cs5535_gpio_cdev.kobj);
++		goto error_region;
++	}
++
++	cs5535_gpio_class = class_create(THIS_MODULE, "cs5535_gpio");
++	if (IS_ERR(cs5535_gpio_class)) {
++		printk(KERN_ERR "Error creating cs5535_gpio class\n");
++		cdev_del(&cs5535_gpio_cdev);
++		retval = PTR_ERR(cs5535_gpio_class);
++		goto error_region;
++	}
++
++	for (i = 0; i < CS5535_GPIO_COUNT; i++) {
++		if (mask & (1<<i)) {
++			device_create(cs5535_gpio_class, NULL, MKDEV(major, i), NULL, "cs5535_gpio%d", i);
++		}
++	}
+ 
+ 	return 0;
++
++error_region:
++	unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);
++error:
++	release_region(gpio_base, CS5535_GPIO_SIZE);
++	return retval;
+ }
+ 
+ static void __exit cs5535_gpio_cleanup(void)
+ {
+ 	dev_t dev_id = MKDEV(major, 0);
++	int i;
++
++	for (i = 0; i < CS5535_GPIO_COUNT; i++) {
++		if (mask & (1<<i)) {
++			device_destroy(cs5535_gpio_class, MKDEV(major, i));
++		}
++	}
++
++	class_destroy(cs5535_gpio_class);
+ 
+ 	cdev_del(&cs5535_gpio_cdev);
+ 	unregister_chrdev_region(dev_id, CS5535_GPIO_COUNT);
diff --git a/target/linux/generic/patches-2.6.38/930-crashlog.patch b/target/linux/generic/patches-2.6.38/930-crashlog.patch
new file mode 100644
index 0000000000..8c8f05c260
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/930-crashlog.patch
@@ -0,0 +1,242 @@
+--- /dev/null
++++ b/include/linux/crashlog.h
+@@ -0,0 +1,12 @@
++#ifndef __CRASHLOG_H
++#define __CRASHLOG_H
++
++#ifdef CONFIG_CRASHLOG
++void __init crashlog_init_mem(struct bootmem_data *bdata);
++#else
++static inline void crashlog_init_mem(struct bootmem_data *bdata)
++{
++}
++#endif
++
++#endif
+--- a/init/Kconfig
++++ b/init/Kconfig
+@@ -862,6 +862,10 @@ config RELAY
+ 
+ 	  If unsure, say N.
+ 
++config CRASHLOG
++	bool "Crash logging"
++	depends on !NO_BOOTMEM && !HAVE_MEMBLOCK
++
+ config BLK_DEV_INITRD
+ 	bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support"
+ 	depends on BROKEN || !FRV
+--- a/kernel/Makefile
++++ b/kernel/Makefile
+@@ -107,6 +107,7 @@ obj-$(CONFIG_PERF_EVENTS) += perf_event.
+ obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
+ obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
+ obj-$(CONFIG_PADATA) += padata.o
++obj-$(CONFIG_CRASHLOG) += crashlog.o
+ 
+ ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
+ # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is
+--- /dev/null
++++ b/kernel/crashlog.c
+@@ -0,0 +1,171 @@
++/*
++ * Crash information logger
++ * Copyright (C) 2010 Felix Fietkau <nbd@openwrt.org>
++ *
++ * Based on ramoops.c
++ *   Copyright (C) 2010 Marco Stornelli <marco.stornelli@gmail.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/bootmem.h>
++#include <linux/debugfs.h>
++#include <linux/crashlog.h>
++#include <linux/kmsg_dump.h>
++#include <linux/module.h>
++#include <linux/pfn.h>
++#include <asm/io.h>
++
++#define CRASHLOG_PAGES	4
++#define CRASHLOG_SIZE	(CRASHLOG_PAGES * PAGE_SIZE)
++#define CRASHLOG_MAGIC	0xa1eedead
++
++/*
++ * Start the log at 1M before the end of RAM, as some boot loaders like
++ * to use the end of the RAM for stack usage and other things
++ * If this fails, fall back to using the last part.
++ */
++#define CRASHLOG_OFFSET	(1024 * 1024)
++
++struct crashlog_data {
++	u32 magic;
++	u32 len;
++	u8 data[];
++};
++
++static struct debugfs_blob_wrapper crashlog_blob;
++static unsigned long crashlog_addr = 0;
++static struct crashlog_data *crashlog_buf;
++static struct kmsg_dumper dump;
++static bool first = true;
++
++extern struct list_head *crashlog_modules;
++
++void __init crashlog_init_mem(bootmem_data_t *bdata)
++{
++	unsigned long addr;
++
++	if (crashlog_addr)
++		return;
++
++	addr = PFN_PHYS(bdata->node_low_pfn) - CRASHLOG_OFFSET;
++	if (reserve_bootmem(addr, CRASHLOG_SIZE, BOOTMEM_EXCLUSIVE) < 0) {
++		printk("Crashlog failed to allocate RAM at address 0x%lx\n", addr);
++		bdata->node_low_pfn -= CRASHLOG_PAGES;
++		addr = PFN_PHYS(bdata->node_low_pfn);
++	}
++	crashlog_addr = addr;
++}
++
++static void __init crashlog_copy(void)
++{
++	if (crashlog_buf->magic != CRASHLOG_MAGIC)
++		return;
++
++	if (!crashlog_buf->len || crashlog_buf->len >
++	    CRASHLOG_SIZE - sizeof(*crashlog_buf))
++		return;
++
++	crashlog_blob.size = crashlog_buf->len;
++	crashlog_blob.data = kmemdup(crashlog_buf->data,
++		crashlog_buf->len, GFP_KERNEL);
++
++	debugfs_create_blob("crashlog", 0700, NULL, &crashlog_blob);
++}
++
++static int get_maxlen(void)
++{
++	return CRASHLOG_SIZE - sizeof(*crashlog_buf) - crashlog_buf->len;
++}
++
++static void crashlog_printf(const char *fmt, ...)
++{
++	va_list args;
++	int len = get_maxlen();
++
++	if (!len)
++		return;
++
++	va_start(args, fmt);
++	crashlog_buf->len += vsnprintf(
++		&crashlog_buf->data[crashlog_buf->len],
++		len, fmt, args);
++	va_end(args);
++}
++
++static void crashlog_do_dump(struct kmsg_dumper *dumper,
++		enum kmsg_dump_reason reason, const char *s1, unsigned long l1,
++		const char *s2, unsigned long l2)
++{
++	unsigned long s1_start, s2_start;
++	unsigned long l1_cpy, l2_cpy;
++	struct timeval tv;
++	struct module *m;
++	char *buf;
++	int len;
++
++	if (!first)
++		crashlog_printf("\n===================================\n");
++
++	do_gettimeofday(&tv);
++	crashlog_printf("Time: %lu.%lu\n",
++		(long)tv.tv_sec, (long)tv.tv_usec);
++
++	if (first) {
++		crashlog_printf("Modules:");
++		list_for_each_entry(m, crashlog_modules, list) {
++			crashlog_printf("\t%s@%p+%x", m->name,
++			m->module_core, m->core_size,
++			m->module_init, m->init_size);
++		}
++		crashlog_printf("\n");
++		first = false;
++	}
++
++	buf = (char *)&crashlog_buf->data[crashlog_buf->len];
++	len = get_maxlen();
++
++	l2_cpy = min(l2, (unsigned long)len);
++	l1_cpy = min(l1, (unsigned long)len - l2_cpy);
++
++	s2_start = l2 - l2_cpy;
++	s1_start = l1 - l1_cpy;
++
++	memcpy(buf, s1 + s1_start, l1_cpy);
++	memcpy(buf + l1_cpy, s2 + s2_start, l2_cpy);
++	crashlog_buf->len += l1_cpy + l2_cpy;
++}
++
++
++int __init crashlog_init_fs(void)
++{
++	if (!crashlog_addr)
++		return -ENOMEM;
++
++	crashlog_buf = ioremap(crashlog_addr, CRASHLOG_SIZE);
++
++	crashlog_copy();
++
++	crashlog_buf->magic = CRASHLOG_MAGIC;
++	crashlog_buf->len = 0;
++
++	dump.dump = crashlog_do_dump;
++	kmsg_dump_register(&dump);
++
++	return 0;
++}
++module_init(crashlog_init_fs);
+--- a/mm/bootmem.c
++++ b/mm/bootmem.c
+@@ -15,6 +15,7 @@
+ #include <linux/module.h>
+ #include <linux/kmemleak.h>
+ #include <linux/range.h>
++#include <linux/crashlog.h>
+ #include <linux/memblock.h>
+ 
+ #include <asm/bug.h>
+@@ -227,6 +228,7 @@ static unsigned long __init free_all_boo
+ 	if (!bdata->node_bootmem_map)
+ 		return 0;
+ 
++	crashlog_init_mem(bdata);
+ 	start = bdata->node_min_pfn;
+ 	end = bdata->node_low_pfn;
+ 
+--- a/kernel/module.c
++++ b/kernel/module.c
+@@ -106,6 +106,9 @@ static LIST_HEAD(modules);
+ #ifdef CONFIG_KGDB_KDB
+ struct list_head *kdb_modules = &modules; /* kdb needs the list of modules */
+ #endif /* CONFIG_KGDB_KDB */
++#ifdef CONFIG_CRASHLOG
++struct list_head *crashlog_modules = &modules;
++#endif
+ 
+ 
+ /* Block module loading/unloading? */
diff --git a/target/linux/generic/patches-2.6.38/940-wireless_mesh_header.patch b/target/linux/generic/patches-2.6.38/940-wireless_mesh_header.patch
new file mode 100644
index 0000000000..271f8e3591
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/940-wireless_mesh_header.patch
@@ -0,0 +1,11 @@
+--- a/include/linux/netdevice.h
++++ b/include/linux/netdevice.h
+@@ -145,7 +145,7 @@ static inline bool dev_xmit_complete(int
+  */
+ 
+ #if defined(CONFIG_WLAN) || defined(CONFIG_AX25) || defined(CONFIG_AX25_MODULE)
+-# if defined(CONFIG_MAC80211_MESH)
++# if 1 || defined(CONFIG_MAC80211_MESH)
+ #  define LL_MAX_HEADER 128
+ # else
+ #  define LL_MAX_HEADER 96
diff --git a/target/linux/generic/patches-2.6.38/950-powerpc_crtsavres_prereq.patch b/target/linux/generic/patches-2.6.38/950-powerpc_crtsavres_prereq.patch
new file mode 100644
index 0000000000..402cd0cacb
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/950-powerpc_crtsavres_prereq.patch
@@ -0,0 +1,56 @@
+--- a/Makefile
++++ b/Makefile
+@@ -362,6 +362,7 @@ KBUILD_AFLAGS   := -D__ASSEMBLY__
+ KBUILD_AFLAGS_MODULE  := -DMODULE
+ KBUILD_CFLAGS_MODULE  := -DMODULE
+ KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
++KBUILD_LDFLAGS_MODULE_PREREQ	:= 
+ 
+ # Read KERNELRELEASE from include/config/kernel.release (if it exists)
+ KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
+@@ -371,7 +372,7 @@ export VERSION PATCHLEVEL SUBLEVEL KERNE
+ export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
+ export CPP AR NM STRIP OBJCOPY OBJDUMP
+ export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
+-export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
++export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE KBUILD_LDFLAGS_MODULE_PREREQ CHECK CHECKFLAGS
+ 
+ export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
+ export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -94,7 +94,7 @@ else
+ endif
+ endif
+ 
+-KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
++KBUILD_LDFLAGS_MODULE_PREREQ += arch/powerpc/lib/crtsavres.o
+ 
+ ifeq ($(CONFIG_TUNE_CELL),y)
+ 	KBUILD_CFLAGS += $(call cc-option,-mtune=cell)
+--- a/scripts/Makefile.modpost
++++ b/scripts/Makefile.modpost
+@@ -110,7 +110,14 @@ quiet_cmd_cc_o_c = CC      $@
+       cmd_cc_o_c = $(CC) $(c_flags) $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE) \
+ 		   -c -o $@ $<
+ 
+-$(modules:.ko=.mod.o): %.mod.o: %.mod.c FORCE
++quiet_cmd_as_o_S	= AS $(quiet_modtag)  $@
++cmd_as_o_S		= $(CC) $(a_flags) $(AFLAGS_MODULE) -c -o $@ $<
++
++$(KBUILD_LDFLAGS_MODULE_PREREQ): %.o: %.S FORCE
++	$(Q)mkdir -p $(dir $@)
++	$(call if_changed_dep,as_o_S)
++
++$(modules:.ko=.mod.o): %.mod.o: %.mod.c $(KBUILD_LDFLAGS_MODULE_PREREQ) FORCE
+ 	$(call if_changed_dep,cc_o_c)
+ 
+ targets += $(modules:.ko=.mod.o)
+@@ -119,6 +126,7 @@ targets += $(modules:.ko=.mod.o)
+ quiet_cmd_ld_ko_o = LD [M]  $@
+       cmd_ld_ko_o = $(LD) -r $(LDFLAGS)                                 \
+                              $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
++			     $(KBUILD_LDFLAGS_MODULE_PREREQ)		\
+                              -o $@ $(filter-out FORCE,$^)
+ 
+ $(modules): %.ko :%.o %.mod.o FORCE
diff --git a/target/linux/generic/patches-2.6.38/970-ocf_kbuild_integration.patch b/target/linux/generic/patches-2.6.38/970-ocf_kbuild_integration.patch
new file mode 100644
index 0000000000..72c546ea4f
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/970-ocf_kbuild_integration.patch
@@ -0,0 +1,20 @@
+--- a/crypto/Kconfig
++++ b/crypto/Kconfig
+@@ -870,3 +870,6 @@ config CRYPTO_USER_API_SKCIPHER
+ source "drivers/crypto/Kconfig"
+ 
+ endif	# if CRYPTO
++
++source "crypto/ocf/Kconfig"
++
+--- a/crypto/Makefile
++++ b/crypto/Makefile
+@@ -89,6 +89,8 @@ obj-$(CONFIG_CRYPTO_USER_API) += af_alg.
+ obj-$(CONFIG_CRYPTO_USER_API_HASH) += algif_hash.o
+ obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o
+ 
++obj-$(CONFIG_OCF_OCF) += ocf/
++
+ #
+ # generic algorithms and the async_tx api
+ #
diff --git a/target/linux/generic/patches-2.6.38/971-ocf_20100325.patch b/target/linux/generic/patches-2.6.38/971-ocf_20100325.patch
new file mode 100644
index 0000000000..410384c28f
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/971-ocf_20100325.patch
@@ -0,0 +1,170 @@
+--- a/drivers/char/random.c
++++ b/drivers/char/random.c
+@@ -129,6 +129,9 @@
+  *                                unsigned int value);
+  * 	void add_interrupt_randomness(int irq);
+  *
++ *      void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
++ *      int random_input_wait(void);
++ *
+  * add_input_randomness() uses the input layer interrupt timing, as well as
+  * the event type information from the hardware.
+  *
+@@ -140,6 +143,13 @@
+  * a better measure, since the timing of the disk interrupts are more
+  * unpredictable.
+  *
++ * random_input_words() just provides a raw block of entropy to the input
++ * pool, such as from a hardware entropy generator.
++ *
++ * random_input_wait() suspends the caller until such time as the
++ * entropy pool falls below the write threshold, and returns a count of how
++ * much entropy (in bits) is needed to sustain the pool.
++ *
+  * All of these routines try to estimate how many bits of randomness a
+  * particular randomness source.  They do this by keeping track of the
+  * first and second order deltas of the event timings.
+@@ -715,6 +725,61 @@ void add_disk_randomness(struct gendisk
+ }
+ #endif
+ 
++/*
++ * random_input_words - add bulk entropy to pool
++ *
++ * @buf: buffer to add
++ * @wordcount: number of __u32 words to add
++ * @ent_count: total amount of entropy (in bits) to credit
++ *
++ * this provides bulk input of entropy to the input pool
++ *
++ */
++void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
++{
++        mix_pool_bytes(&input_pool, buf, wordcount*4);
++
++        credit_entropy_bits(&input_pool, ent_count);
++
++        DEBUG_ENT("crediting %d bits => %d\n",
++                  ent_count, input_pool.entropy_count);
++	/*
++	 * Wake up waiting processes if we have enough
++	 * entropy.
++	 */
++	if (input_pool.entropy_count >= random_read_wakeup_thresh)
++		wake_up_interruptible(&random_read_wait);
++}
++EXPORT_SYMBOL(random_input_words);
++
++/*
++ * random_input_wait - wait until random needs entropy
++ *
++ * this function sleeps until the /dev/random subsystem actually
++ * needs more entropy, and then return the amount of entropy
++ * that it would be nice to have added to the system.
++ */
++int random_input_wait(void)
++{
++	int count;
++
++	wait_event_interruptible(random_write_wait,
++		input_pool.entropy_count < random_write_wakeup_thresh);
++
++	count = random_write_wakeup_thresh - input_pool.entropy_count;
++
++	/* likely we got woken up due to a signal */
++	if (count <= 0) count = random_read_wakeup_thresh;
++
++	DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n",
++		count,
++		input_pool.entropy_count, random_write_wakeup_thresh);
++
++	return count;
++}
++EXPORT_SYMBOL(random_input_wait);
++
++
+ /*********************************************************************
+  *
+  * Entropy extraction routines
+--- a/fs/fcntl.c
++++ b/fs/fcntl.c
+@@ -142,6 +142,7 @@ SYSCALL_DEFINE1(dup, unsigned int, filde
+ 	}
+ 	return ret;
+ }
++EXPORT_SYMBOL(sys_dup);
+ 
+ #define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | O_DIRECT | O_NOATIME)
+ 
+--- a/include/linux/miscdevice.h
++++ b/include/linux/miscdevice.h
+@@ -18,6 +18,7 @@
+ #define APOLLO_MOUSE_MINOR	7
+ #define PC110PAD_MINOR		9
+ /*#define ADB_MOUSE_MINOR	10	FIXME OBSOLETE */
++#define CRYPTODEV_MINOR		70	/* /dev/crypto */
+ #define WATCHDOG_MINOR		130	/* Watchdog timer     */
+ #define TEMP_MINOR		131	/* Temperature Sensor */
+ #define RTC_MINOR		135
+--- a/include/linux/random.h
++++ b/include/linux/random.h
+@@ -9,6 +9,7 @@
+ 
+ #include <linux/types.h>
+ #include <linux/ioctl.h>
++#include <linux/types.h> /* for __u32 in user space */
+ #include <linux/irqnr.h>
+ 
+ /* ioctl()'s for the random number generator */
+@@ -34,6 +35,30 @@
+ /* Clear the entropy pool and associated counters.  (Superuser only.) */
+ #define RNDCLEARPOOL	_IO( 'R', 0x06 )
+ 
++#ifdef CONFIG_FIPS_RNG
++
++/* Size of seed value - equal to AES blocksize */
++#define AES_BLOCK_SIZE_BYTES	16
++#define SEED_SIZE_BYTES			AES_BLOCK_SIZE_BYTES
++/* Size of AES key */
++#define KEY_SIZE_BYTES		16
++
++/* ioctl() structure used by FIPS 140-2 Tests */
++struct rand_fips_test {
++	unsigned char key[KEY_SIZE_BYTES];			/* Input */
++	unsigned char datetime[SEED_SIZE_BYTES];	/* Input */
++	unsigned char seed[SEED_SIZE_BYTES];		/* Input */
++	unsigned char result[SEED_SIZE_BYTES];		/* Output */
++};
++
++/* FIPS 140-2 RNG Variable Seed Test. (Superuser only.) */
++#define RNDFIPSVST	_IOWR('R', 0x10, struct rand_fips_test)
++
++/* FIPS 140-2 RNG Monte Carlo Test. (Superuser only.) */
++#define RNDFIPSMCT	_IOWR('R', 0x11, struct rand_fips_test)
++
++#endif /* #ifdef CONFIG_FIPS_RNG */
++
+ struct rand_pool_info {
+ 	int	entropy_count;
+ 	int	buf_size;
+@@ -54,6 +79,10 @@ extern void add_input_randomness(unsigne
+ 				 unsigned int value);
+ extern void add_interrupt_randomness(int irq);
+ 
++extern void random_input_words(__u32 *buf, size_t wordcount, int ent_count);
++extern int random_input_wait(void);
++#define HAS_RANDOM_INPUT_WAIT 1
++
+ extern void get_random_bytes(void *buf, int nbytes);
+ void generate_random_uuid(unsigned char uuid_out[16]);
+ 
+--- a/kernel/pid.c
++++ b/kernel/pid.c
+@@ -424,6 +424,7 @@ struct task_struct *find_task_by_vpid(pi
+ {
+ 	return find_task_by_pid_ns(vnr, current->nsproxy->pid_ns);
+ }
++EXPORT_SYMBOL(find_task_by_vpid);
+ 
+ struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
+ {
diff --git a/target/linux/generic/patches-2.6.38/974-ssb_b43_default_on.patch b/target/linux/generic/patches-2.6.38/974-ssb_b43_default_on.patch
new file mode 100644
index 0000000000..3176dcb4d8
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/974-ssb_b43_default_on.patch
@@ -0,0 +1,19 @@
+--- a/drivers/ssb/Kconfig
++++ b/drivers/ssb/Kconfig
+@@ -29,6 +29,7 @@ config SSB_SPROM
+ config SSB_BLOCKIO
+ 	bool
+ 	depends on SSB
++	default y
+ 
+ config SSB_PCIHOST_POSSIBLE
+ 	bool
+@@ -49,7 +50,7 @@ config SSB_PCIHOST
+ config SSB_B43_PCI_BRIDGE
+ 	bool
+ 	depends on SSB_PCIHOST
+-	default n
++	default y
+ 
+ config SSB_PCMCIAHOST_POSSIBLE
+ 	bool
diff --git a/target/linux/generic/patches-2.6.38/975-hifn795x-byteswap.patch b/target/linux/generic/patches-2.6.38/975-hifn795x-byteswap.patch
new file mode 100644
index 0000000000..3a37c951ec
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/975-hifn795x-byteswap.patch
@@ -0,0 +1,17 @@
+--- a/drivers/crypto/hifn_795x.c
++++ b/drivers/crypto/hifn_795x.c
+@@ -682,12 +682,12 @@ static inline u32 hifn_read_1(struct hif
+ 
+ static inline void hifn_write_0(struct hifn_device *dev, u32 reg, u32 val)
+ {
+-	writel((__force u32)cpu_to_le32(val), dev->bar[0] + reg);
++	writel(val, dev->bar[0] + reg);
+ }
+ 
+ static inline void hifn_write_1(struct hifn_device *dev, u32 reg, u32 val)
+ {
+-	writel((__force u32)cpu_to_le32(val), dev->bar[1] + reg);
++	writel(val, dev->bar[1] + reg);
+ }
+ 
+ static void hifn_wait_puc(struct hifn_device *dev)
diff --git a/target/linux/generic/patches-2.6.38/976-ssb_increase_pci_delay.patch b/target/linux/generic/patches-2.6.38/976-ssb_increase_pci_delay.patch
new file mode 100644
index 0000000000..af67367b1d
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/976-ssb_increase_pci_delay.patch
@@ -0,0 +1,11 @@
+--- a/drivers/ssb/driver_pcicore.c
++++ b/drivers/ssb/driver_pcicore.c
+@@ -370,7 +370,7 @@ static void ssb_pcicore_init_hostmode(st
+ 	set_io_port_base(ssb_pcicore_controller.io_map_base);
+ 	/* Give some time to the PCI controller to configure itself with the new
+ 	 * values. Not waiting at this point causes crashes of the machine. */
+-	mdelay(10);
++	mdelay(300);
+ 	register_pci_controller(&ssb_pcicore_controller);
+ }
+ 
diff --git a/target/linux/generic/patches-2.6.38/977-ssb_export_fallback_sprom.patch b/target/linux/generic/patches-2.6.38/977-ssb_export_fallback_sprom.patch
new file mode 100644
index 0000000000..67f12c8fb1
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/977-ssb_export_fallback_sprom.patch
@@ -0,0 +1,20 @@
+--- a/drivers/ssb/sprom.c
++++ b/drivers/ssb/sprom.c
+@@ -176,6 +176,7 @@ const struct ssb_sprom *ssb_get_fallback
+ {
+ 	return fallback_sprom;
+ }
++EXPORT_SYMBOL(ssb_get_fallback_sprom);
+ 
+ /* http://bcm-v4.sipsolutions.net/802.11/IsSpromAvailable */
+ bool ssb_is_sprom_available(struct ssb_bus *bus)
+--- a/include/linux/ssb/ssb.h
++++ b/include/linux/ssb/ssb.h
+@@ -405,6 +405,7 @@ extern bool ssb_is_sprom_available(struc
+ /* Set a fallback SPROM.
+  * See kdoc at the function definition for complete documentation. */
+ extern int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom);
++extern const struct ssb_sprom *ssb_get_fallback_sprom(void);
+ 
+ /* Suspend a SSB bus.
+  * Call this from the parent bus suspend routine. */
diff --git a/target/linux/generic/patches-2.6.38/977-textsearch_kconfig_hacks.patch b/target/linux/generic/patches-2.6.38/977-textsearch_kconfig_hacks.patch
new file mode 100644
index 0000000000..b5d9a7ecd0
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/977-textsearch_kconfig_hacks.patch
@@ -0,0 +1,23 @@
+--- a/lib/Kconfig
++++ b/lib/Kconfig
+@@ -164,16 +164,16 @@ config REED_SOLOMON_DEC16
+ # Textsearch support is select'ed if needed
+ #
+ config TEXTSEARCH
+-	boolean
++	boolean	"Textsearch support"
+ 
+ config TEXTSEARCH_KMP
+-	tristate
++	tristate "Textsearch KMP"
+ 
+ config TEXTSEARCH_BM
+-	tristate
++	tristate "Textsearch BM"
+ 
+ config TEXTSEARCH_FSM
+-	tristate
++	tristate "Textsearch FSM"
+ 
+ config BTREE
+ 	boolean
diff --git a/target/linux/generic/patches-2.6.38/978-lib80211_kconfig_hacks.patch b/target/linux/generic/patches-2.6.38/978-lib80211_kconfig_hacks.patch
new file mode 100644
index 0000000000..c044deac00
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/978-lib80211_kconfig_hacks.patch
@@ -0,0 +1,19 @@
+--- a/net/wireless/Kconfig
++++ b/net/wireless/Kconfig
+@@ -142,13 +142,13 @@ config LIB80211
+ 	  you want this built into your kernel.
+ 
+ config LIB80211_CRYPT_WEP
+-	tristate
++	tristate "LIB80211_CRYPT_WEP"
+ 
+ config LIB80211_CRYPT_CCMP
+-	tristate
++	tristate "LIB80211_CRYPT_CCMP"
+ 
+ config LIB80211_CRYPT_TKIP
+-	tristate
++	tristate "LIB80211_CRYPT_TKIP"
+ 
+ config LIB80211_DEBUG
+ 	bool "lib80211 debugging messages"
diff --git a/target/linux/generic/patches-2.6.38/979-crypto_add_kconfig_prompts.patch b/target/linux/generic/patches-2.6.38/979-crypto_add_kconfig_prompts.patch
new file mode 100644
index 0000000000..8462c711f0
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/979-crypto_add_kconfig_prompts.patch
@@ -0,0 +1,47 @@
+--- a/crypto/Kconfig
++++ b/crypto/Kconfig
+@@ -31,7 +31,7 @@ config CRYPTO_FIPS
+ 	  this is.
+ 
+ config CRYPTO_ALGAPI
+-	tristate
++	tristate "ALGAPI"
+ 	select CRYPTO_ALGAPI2
+ 	help
+ 	  This option provides the API for cryptographic algorithms.
+@@ -40,7 +40,7 @@ config CRYPTO_ALGAPI2
+ 	tristate
+ 
+ config CRYPTO_AEAD
+-	tristate
++	tristate "AEAD"
+ 	select CRYPTO_AEAD2
+ 	select CRYPTO_ALGAPI
+ 
+@@ -49,7 +49,7 @@ config CRYPTO_AEAD2
+ 	select CRYPTO_ALGAPI2
+ 
+ config CRYPTO_BLKCIPHER
+-	tristate
++	tristate "BLKCIPHER"
+ 	select CRYPTO_BLKCIPHER2
+ 	select CRYPTO_ALGAPI
+ 
+@@ -60,7 +60,7 @@ config CRYPTO_BLKCIPHER2
+ 	select CRYPTO_WORKQUEUE
+ 
+ config CRYPTO_HASH
+-	tristate
++	tristate "HASH"
+ 	select CRYPTO_HASH2
+ 	select CRYPTO_ALGAPI
+ 
+@@ -69,7 +69,7 @@ config CRYPTO_HASH2
+ 	select CRYPTO_ALGAPI2
+ 
+ config CRYPTO_RNG
+-	tristate
++	tristate "RNG"
+ 	select CRYPTO_RNG2
+ 	select CRYPTO_ALGAPI
+ 
diff --git a/target/linux/generic/patches-2.6.38/980-vm_exports.patch b/target/linux/generic/patches-2.6.38/980-vm_exports.patch
new file mode 100644
index 0000000000..37a4dd0063
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/980-vm_exports.patch
@@ -0,0 +1,132 @@
+--- a/mm/shmem.c
++++ b/mm/shmem.c
+@@ -30,6 +30,7 @@
+ #include <linux/module.h>
+ #include <linux/percpu_counter.h>
+ #include <linux/swap.h>
++#include <linux/ima.h>
+ 
+ static struct vfsmount *shm_mnt;
+ 
+@@ -2710,6 +2711,16 @@ out:
+ 
+ /* common code */
+ 
++void shmem_set_file(struct vm_area_struct *vma, struct file *file)
++{
++	ima_counts_get(file);
++	if (vma->vm_file)
++		fput(vma->vm_file);
++	vma->vm_file = file;
++	vma->vm_ops = &shmem_vm_ops;
++}
++EXPORT_SYMBOL_GPL(shmem_set_file);
++
+ /**
+  * shmem_file_setup - get an unlinked file living in tmpfs
+  * @name: name for dentry (to be seen in /proc/<pid>/maps
+@@ -2787,9 +2798,6 @@ int shmem_zero_setup(struct vm_area_stru
+ 	if (IS_ERR(file))
+ 		return PTR_ERR(file);
+ 
+-	if (vma->vm_file)
+-		fput(vma->vm_file);
+-	vma->vm_file = file;
+-	vma->vm_ops = &shmem_vm_ops;
++	shmem_set_file(vma, file);
+ 	return 0;
+ }
+--- a/fs/file.c
++++ b/fs/file.c
+@@ -264,6 +264,7 @@ int expand_files(struct files_struct *fi
+ 	/* All good, so we try */
+ 	return expand_fdtable(files, nr);
+ }
++EXPORT_SYMBOL_GPL(expand_files);
+ 
+ static int count_open_files(struct fdtable *fdt)
+ {
+--- a/kernel/exit.c
++++ b/kernel/exit.c
+@@ -513,6 +513,7 @@ struct files_struct *get_files_struct(st
+ 
+ 	return files;
+ }
++EXPORT_SYMBOL_GPL(get_files_struct);
+ 
+ void put_files_struct(struct files_struct *files)
+ {
+@@ -534,6 +535,7 @@ void put_files_struct(struct files_struc
+ 		rcu_read_unlock();
+ 	}
+ }
++EXPORT_SYMBOL_GPL(put_files_struct);
+ 
+ void reset_files_struct(struct files_struct *files)
+ {
+--- a/kernel/fork.c
++++ b/kernel/fork.c
+@@ -193,6 +193,7 @@ void __put_task_struct(struct task_struc
+ 	if (!profile_handoff_task(tsk))
+ 		free_task(tsk);
+ }
++EXPORT_SYMBOL_GPL(__put_task_struct);
+ 
+ /*
+  * macro override instead of weak attribute alias, to workaround
+--- a/kernel/sched.c
++++ b/kernel/sched.c
+@@ -4640,6 +4640,7 @@ int can_nice(const struct task_struct *p
+ 	return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) ||
+ 		capable(CAP_SYS_NICE));
+ }
++EXPORT_SYMBOL_GPL(can_nice);
+ 
+ #ifdef __ARCH_WANT_SYS_NICE
+ 
+--- a/mm/memory.c
++++ b/mm/memory.c
+@@ -1229,6 +1229,7 @@ unsigned long zap_page_range(struct vm_a
+ 		tlb_finish_mmu(tlb, address, end);
+ 	return end;
+ }
++EXPORT_SYMBOL_GPL(zap_page_range);
+ 
+ /**
+  * zap_vma_ptes - remove ptes mapping the vma
+@@ -2692,6 +2693,7 @@ int vmtruncate_range(struct inode *inode
+ 
+ 	return 0;
+ }
++EXPORT_SYMBOL_GPL(vmtruncate_range);
+ 
+ /*
+  * We enter with non-exclusive mmap_sem (to exclude vma changes,
+--- a/mm/vmalloc.c
++++ b/mm/vmalloc.c
+@@ -1193,6 +1193,7 @@ void unmap_kernel_range(unsigned long ad
+ 	vunmap_page_range(addr, end);
+ 	flush_tlb_kernel_range(addr, end);
+ }
++EXPORT_SYMBOL_GPL(unmap_kernel_range);
+ 
+ int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages)
+ {
+@@ -1308,6 +1309,7 @@ struct vm_struct *get_vm_area(unsigned l
+ 	return __get_vm_area_node(size, 1, flags, VMALLOC_START, VMALLOC_END,
+ 				-1, GFP_KERNEL, __builtin_return_address(0));
+ }
++EXPORT_SYMBOL_GPL(get_vm_area);
+ 
+ struct vm_struct *get_vm_area_caller(unsigned long size, unsigned long flags,
+ 				void *caller)
+--- a/include/linux/mm.h
++++ b/include/linux/mm.h
+@@ -854,6 +854,7 @@ extern void show_free_areas(void);
+ 
+ int shmem_lock(struct file *file, int lock, struct user_struct *user);
+ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags);
++void shmem_set_file(struct vm_area_struct *vma, struct file *file);
+ int shmem_zero_setup(struct vm_area_struct *);
+ 
+ #ifndef CONFIG_MMU
diff --git a/target/linux/generic/patches-2.6.38/981-wireless_ext_kconfig_hack.patch b/target/linux/generic/patches-2.6.38/981-wireless_ext_kconfig_hack.patch
new file mode 100644
index 0000000000..daac5898ae
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/981-wireless_ext_kconfig_hack.patch
@@ -0,0 +1,22 @@
+--- a/net/wireless/Kconfig
++++ b/net/wireless/Kconfig
+@@ -1,5 +1,5 @@
+ config WIRELESS_EXT
+-	bool
++	bool "Wireless extensions"
+ 
+ config WEXT_CORE
+ 	def_bool y
+@@ -11,10 +11,10 @@ config WEXT_PROC
+ 	depends on WEXT_CORE
+ 
+ config WEXT_SPY
+-	bool
++	bool "WEXT_SPY"
+ 
+ config WEXT_PRIV
+-	bool
++	bool "WEXT_PRIV"
+ 
+ config CFG80211
+ 	tristate "cfg80211 - wireless configuration API"
diff --git a/target/linux/generic/patches-2.6.38/985-cris-headers.patch b/target/linux/generic/patches-2.6.38/985-cris-headers.patch
new file mode 100644
index 0000000000..88cfec5dbf
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/985-cris-headers.patch
@@ -0,0 +1,26 @@
+--- a/arch/cris/include/arch-v10/arch/Kbuild
++++ b/arch/cris/include/arch-v10/arch/Kbuild
+@@ -1,3 +1,5 @@
++header-y += elf.h
++header-y += ptrace.h
+ header-y += user.h
+ header-y += svinto.h
+ header-y += sv_addr_ag.h
+--- a/arch/cris/include/asm/Kbuild
++++ b/arch/cris/include/asm/Kbuild
+@@ -1,10 +1,13 @@
+ include include/asm-generic/Kbuild.asm
+ 
+-header-y += arch-v10/
+-header-y += arch-v32/
++header-y += ../arch-v10/arch/
++header-y += ../arch-v32/arch/
+ 
++header-y += elf.h
+ header-y += ethernet.h
+ header-y += etraxgpio.h
++header-y += page.h
+ header-y += rs485.h
+ header-y += rtc.h
+ header-y += sync_serial.h
++header-y += user.h
diff --git a/target/linux/generic/patches-2.6.38/991-ppc4xx_optimization.patch b/target/linux/generic/patches-2.6.38/991-ppc4xx_optimization.patch
new file mode 100644
index 0000000000..49d3659286
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/991-ppc4xx_optimization.patch
@@ -0,0 +1,31 @@
+Upstream doesn't optimize the kernel and bootwrappers for ppc44x because
+they still want to support gcc 3.3 -- well, we don't.
+
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -130,7 +130,8 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y)
+ KBUILD_CFLAGS		+= -mno-sched-epilog
+ endif
+ 
+-cpu-as-$(CONFIG_4xx)		+= -Wa,-m405
++cpu-as-$(CONFIG_40x)		+= -Wa,-m405
++cpu-as-$(CONFIG_44x)		+= -Wa,-m440
+ cpu-as-$(CONFIG_6xx)		+= -Wa,-maltivec
+ cpu-as-$(CONFIG_POWER4)		+= -Wa,-maltivec
+ cpu-as-$(CONFIG_E500)		+= -Wa,-me500
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -38,10 +38,10 @@ BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(ob
+ DTC_FLAGS	?= -p 1024
+ 
+ $(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
+-$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
++$(obj)/ebony.o: BOOTCFLAGS += -mcpu=440
+ $(obj)/cuboot-hotfoot.o: BOOTCFLAGS += -mcpu=405
+-$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
+-$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
++$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=440
++$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=440
+ $(obj)/cuboot-acadia.o: BOOTCFLAGS += -mcpu=405
+ $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
+ $(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405
diff --git a/target/linux/generic/patches-2.6.38/997-lzo_decompressor_fix.patch b/target/linux/generic/patches-2.6.38/997-lzo_decompressor_fix.patch
new file mode 100644
index 0000000000..aab44ca91e
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/997-lzo_decompressor_fix.patch
@@ -0,0 +1,11 @@
+--- a/usr/Kconfig
++++ b/usr/Kconfig
+@@ -84,7 +84,7 @@ config RD_XZ
+ config RD_LZO
+ 	bool "Support initial ramdisks compressed using LZO" if EMBEDDED
+ 	default !EMBEDDED
+-	depends on BLK_DEV_INITRD
++	depends on BLK_DEV_INITRD && HAVE_KERNEL_LZO
+ 	select DECOMPRESS_LZO
+ 	help
+ 	  Support loading of a LZO encoded initial ramdisk or cpio buffer
diff --git a/target/linux/generic/patches-2.6.38/998-openwrt_lzma_options.patch b/target/linux/generic/patches-2.6.38/998-openwrt_lzma_options.patch
new file mode 100644
index 0000000000..8819a633ac
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/998-openwrt_lzma_options.patch
@@ -0,0 +1,54 @@
+--- a/scripts/Makefile.lib
++++ b/scripts/Makefile.lib
+@@ -254,7 +254,7 @@ cmd_bzip2 = (cat $(filter-out FORCE,$^)
+ 
+ quiet_cmd_lzma = LZMA    $@
+ cmd_lzma = (cat $(filter-out FORCE,$^) | \
+-	lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
++	lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ 	(rm -f $@ ; false)
+ 
+ quiet_cmd_lzo = LZO     $@
+--- a/scripts/gen_initramfs_list.sh
++++ b/scripts/gen_initramfs_list.sh
+@@ -226,7 +226,7 @@ cpio_list=
+ output="/dev/stdout"
+ output_file=""
+ is_cpio_compressed=
+-compr="gzip -9 -f"
++compr="gzip -9 -f -"
+ 
+ arg="$1"
+ case "$arg" in
+@@ -240,9 +240,9 @@ case "$arg" in
+ 		output_file="$1"
+ 		cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)"
+ 		output=${cpio_list}
+-		echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f"
+-		echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f"
+-		echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f"
++		echo "$output_file" | grep -q "\.gz$" && compr="gzip -9 -f -"
++		echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f -"
++		echo "$output_file" | grep -q "\.lzma$" && compr="lzma e -d20 -lc1 -lp2 -pb2 -eos -si -so"
+ 		echo "$output_file" | grep -q "\.xz$" && \
+ 				compr="xz --check=crc32 --lzma2=dict=1MiB"
+ 		echo "$output_file" | grep -q "\.lzo$" && compr="lzop -9 -f"
+@@ -296,7 +296,7 @@ if [ ! -z ${output_file} ]; then
+ 	if [ "${is_cpio_compressed}" = "compressed" ]; then
+ 		cat ${cpio_tfile} > ${output_file}
+ 	else
+-		(cat ${cpio_tfile} | ${compr}  - > ${output_file}) \
++		(cat ${cpio_tfile} | ${compr} > ${output_file}) \
+ 		|| (rm -f ${output_file} ; false)
+ 	fi
+ 	[ -z ${cpio_file} ] && rm ${cpio_tfile}
+--- a/lib/decompress.c
++++ b/lib/decompress.c
+@@ -40,6 +40,7 @@ static const struct compress_format {
+ 	{ {037, 0236}, "gzip", gunzip },
+ 	{ {0x42, 0x5a}, "bzip2", bunzip2 },
+ 	{ {0x5d, 0x00}, "lzma", unlzma },
++	{ {0x6d, 0x00}, "lzma-openwrt", unlzma },
+ 	{ {0xfd, 0x37}, "xz", unxz },
+ 	{ {0x89, 0x4c}, "lzo", unlzo },
+ 	{ {0, 0}, NULL, NULL }
diff --git a/target/linux/generic/patches-2.6.38/999-use_preinit_as_init.patch b/target/linux/generic/patches-2.6.38/999-use_preinit_as_init.patch
new file mode 100644
index 0000000000..d58bb30d01
--- /dev/null
+++ b/target/linux/generic/patches-2.6.38/999-use_preinit_as_init.patch
@@ -0,0 +1,14 @@
+--- a/init/main.c
++++ b/init/main.c
+@@ -843,10 +843,7 @@ static noinline int init_post(void)
+ 		printk(KERN_WARNING "Failed to execute %s.  Attempting "
+ 					"defaults...\n", execute_command);
+ 	}
+-	run_init_process("/sbin/init");
+-	run_init_process("/etc/init");
+-	run_init_process("/bin/init");
+-	run_init_process("/bin/sh");
++	run_init_process("/etc/preinit");
+ 
+ 	panic("No init found.  Try passing init= option to kernel. "
+ 	      "See Linux Documentation/init.txt for guidance.");