diff options
| author | Gabor Juhos <juhosg@openwrt.org> | 2012-05-12 12:05:21 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2012-05-12 12:05:21 +0000 |
| commit | e710aeeab10e2b420ad012c0d9fb639266a63515 (patch) | |
| tree | 772ed4e14639b7d0f8f9d96a67a9ccd660c15f0f /target/linux/generic/patches-2.6.38 | |
| parent | 08ed044595b404fa626f71c9b1c1fbc599ad7587 (diff) | |
| download | upstream-e710aeeab10e2b420ad012c0d9fb639266a63515.tar.gz upstream-e710aeeab10e2b420ad012c0d9fb639266a63515.tar.bz2 upstream-e710aeeab10e2b420ad012c0d9fb639266a63515.zip | |
linux/2.6.38: R.I.P.
It is used only by the broken coldfire target.
SVN-Revision: 31688
Diffstat (limited to 'target/linux/generic/patches-2.6.38')
116 files changed, 0 insertions, 65174 deletions
diff --git a/target/linux/generic/patches-2.6.38/020-ssb_update.patch b/target/linux/generic/patches-2.6.38/020-ssb_update.patch deleted file mode 100644 index 8578f75310..0000000000 --- a/target/linux/generic/patches-2.6.38/020-ssb_update.patch +++ /dev/null @@ -1,1950 +0,0 @@ ---- a/drivers/ssb/main.c -+++ b/drivers/ssb/main.c -@@ -3,7 +3,7 @@ - * Subsystem core - * - * Copyright 2005, Broadcom Corporation -- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -@@ -12,6 +12,7 @@ - - #include <linux/delay.h> - #include <linux/io.h> -+#include <linux/module.h> - #include <linux/ssb/ssb.h> - #include <linux/ssb/ssb_regs.h> - #include <linux/ssb/ssb_driver_gige.h> -@@ -139,19 +140,6 @@ static void ssb_device_put(struct ssb_de - put_device(dev->dev); - } - --static inline struct ssb_driver *ssb_driver_get(struct ssb_driver *drv) --{ -- if (drv) -- get_driver(&drv->drv); -- return drv; --} -- --static inline void ssb_driver_put(struct ssb_driver *drv) --{ -- if (drv) -- put_driver(&drv->drv); --} -- - static int ssb_device_resume(struct device *dev) - { - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); -@@ -249,11 +237,9 @@ int ssb_devices_freeze(struct ssb_bus *b - ssb_device_put(sdev); - continue; - } -- sdrv = ssb_driver_get(drv_to_ssb_drv(sdev->dev->driver)); -- if (!sdrv || SSB_WARN_ON(!sdrv->remove)) { -- ssb_device_put(sdev); -+ sdrv = drv_to_ssb_drv(sdev->dev->driver); -+ if (SSB_WARN_ON(!sdrv->remove)) - continue; -- } - sdrv->remove(sdev); - ctx->device_frozen[i] = 1; - } -@@ -292,7 +278,6 @@ int ssb_devices_thaw(struct ssb_freeze_c - dev_name(sdev->dev)); - result = err; - } -- ssb_driver_put(sdrv); - ssb_device_put(sdev); - } - -@@ -557,7 +542,7 @@ error: - } - - /* Needs ssb_buses_lock() */ --static int ssb_attach_queued_buses(void) -+static int __devinit ssb_attach_queued_buses(void) - { - struct ssb_bus *bus, *n; - int err = 0; -@@ -768,9 +753,9 @@ out: - return err; - } - --static int ssb_bus_register(struct ssb_bus *bus, -- ssb_invariants_func_t get_invariants, -- unsigned long baseaddr) -+static int __devinit ssb_bus_register(struct ssb_bus *bus, -+ ssb_invariants_func_t get_invariants, -+ unsigned long baseaddr) - { - int err; - -@@ -851,8 +836,8 @@ err_disable_xtal: - } - - #ifdef CONFIG_SSB_PCIHOST --int ssb_bus_pcibus_register(struct ssb_bus *bus, -- struct pci_dev *host_pci) -+int __devinit ssb_bus_pcibus_register(struct ssb_bus *bus, -+ struct pci_dev *host_pci) - { - int err; - -@@ -875,9 +860,9 @@ EXPORT_SYMBOL(ssb_bus_pcibus_register); - #endif /* CONFIG_SSB_PCIHOST */ - - #ifdef CONFIG_SSB_PCMCIAHOST --int ssb_bus_pcmciabus_register(struct ssb_bus *bus, -- struct pcmcia_device *pcmcia_dev, -- unsigned long baseaddr) -+int __devinit ssb_bus_pcmciabus_register(struct ssb_bus *bus, -+ struct pcmcia_device *pcmcia_dev, -+ unsigned long baseaddr) - { - int err; - -@@ -897,8 +882,9 @@ EXPORT_SYMBOL(ssb_bus_pcmciabus_register - #endif /* CONFIG_SSB_PCMCIAHOST */ - - #ifdef CONFIG_SSB_SDIOHOST --int ssb_bus_sdiobus_register(struct ssb_bus *bus, struct sdio_func *func, -- unsigned int quirks) -+int __devinit ssb_bus_sdiobus_register(struct ssb_bus *bus, -+ struct sdio_func *func, -+ unsigned int quirks) - { - int err; - -@@ -918,9 +904,9 @@ int ssb_bus_sdiobus_register(struct ssb_ - EXPORT_SYMBOL(ssb_bus_sdiobus_register); - #endif /* CONFIG_SSB_PCMCIAHOST */ - --int ssb_bus_ssbbus_register(struct ssb_bus *bus, -- unsigned long baseaddr, -- ssb_invariants_func_t get_invariants) -+int __devinit ssb_bus_ssbbus_register(struct ssb_bus *bus, -+ unsigned long baseaddr, -+ ssb_invariants_func_t get_invariants) - { - int err; - -@@ -1001,8 +987,8 @@ u32 ssb_calc_clock_rate(u32 plltype, u32 - switch (plltype) { - case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ - if (m & SSB_CHIPCO_CLK_T6_MMASK) -- return SSB_CHIPCO_CLK_T6_M0; -- return SSB_CHIPCO_CLK_T6_M1; -+ return SSB_CHIPCO_CLK_T6_M1; -+ return SSB_CHIPCO_CLK_T6_M0; - case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ -@@ -1092,6 +1078,9 @@ u32 ssb_clockspeed(struct ssb_bus *bus) - u32 plltype; - u32 clkctl_n, clkctl_m; - -+ if (bus->chipco.capabilities & SSB_CHIPCO_CAP_PMU) -+ return ssb_pmu_get_controlclock(&bus->chipco); -+ - if (ssb_extif_available(&bus->extif)) - ssb_extif_get_clockcontrol(&bus->extif, &plltype, - &clkctl_n, &clkctl_m); -@@ -1117,23 +1106,22 @@ static u32 ssb_tmslow_reject_bitmask(str - { - u32 rev = ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_SSBREV; - -- /* The REJECT bit changed position in TMSLOW between -- * Backplane revisions. */ -+ /* The REJECT bit seems to be different for Backplane rev 2.3 */ - switch (rev) { - case SSB_IDLOW_SSBREV_22: -- return SSB_TMSLOW_REJECT_22; -+ case SSB_IDLOW_SSBREV_24: -+ case SSB_IDLOW_SSBREV_26: -+ return SSB_TMSLOW_REJECT; - case SSB_IDLOW_SSBREV_23: - return SSB_TMSLOW_REJECT_23; -- case SSB_IDLOW_SSBREV_24: /* TODO - find the proper REJECT bits */ -- case SSB_IDLOW_SSBREV_25: /* same here */ -- case SSB_IDLOW_SSBREV_26: /* same here */ -+ case SSB_IDLOW_SSBREV_25: /* TODO - find the proper REJECT bit */ - case SSB_IDLOW_SSBREV_27: /* same here */ -- return SSB_TMSLOW_REJECT_23; /* this is a guess */ -+ return SSB_TMSLOW_REJECT; /* this is a guess */ - default: - printk(KERN_INFO "ssb: Backplane Revision 0x%.8X\n", rev); - WARN_ON(1); - } -- return (SSB_TMSLOW_REJECT_22 | SSB_TMSLOW_REJECT_23); -+ return (SSB_TMSLOW_REJECT | SSB_TMSLOW_REJECT_23); - } - - int ssb_device_is_enabled(struct ssb_device *dev) -@@ -1192,10 +1180,10 @@ void ssb_device_enable(struct ssb_device - } - EXPORT_SYMBOL(ssb_device_enable); - --/* Wait for a bit in a register to get set or unset. -+/* Wait for bitmask in a register to get set or cleared. - * timeout is in units of ten-microseconds */ --static int ssb_wait_bit(struct ssb_device *dev, u16 reg, u32 bitmask, -- int timeout, int set) -+static int ssb_wait_bits(struct ssb_device *dev, u16 reg, u32 bitmask, -+ int timeout, int set) - { - int i; - u32 val; -@@ -1203,7 +1191,7 @@ static int ssb_wait_bit(struct ssb_devic - for (i = 0; i < timeout; i++) { - val = ssb_read32(dev, reg); - if (set) { -- if (val & bitmask) -+ if ((val & bitmask) == bitmask) - return 0; - } else { - if (!(val & bitmask)) -@@ -1220,20 +1208,38 @@ static int ssb_wait_bit(struct ssb_devic - - void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags) - { -- u32 reject; -+ u32 reject, val; - - if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_RESET) - return; - - reject = ssb_tmslow_reject_bitmask(dev); -- ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK); -- ssb_wait_bit(dev, SSB_TMSLOW, reject, 1000, 1); -- ssb_wait_bit(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0); -- ssb_write32(dev, SSB_TMSLOW, -- SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK | -- reject | SSB_TMSLOW_RESET | -- core_specific_flags); -- ssb_flush_tmslow(dev); -+ -+ if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_CLOCK) { -+ ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK); -+ ssb_wait_bits(dev, SSB_TMSLOW, reject, 1000, 1); -+ ssb_wait_bits(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0); -+ -+ if (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_INITIATOR) { -+ val = ssb_read32(dev, SSB_IMSTATE); -+ val |= SSB_IMSTATE_REJECT; -+ ssb_write32(dev, SSB_IMSTATE, val); -+ ssb_wait_bits(dev, SSB_IMSTATE, SSB_IMSTATE_BUSY, 1000, -+ 0); -+ } -+ -+ ssb_write32(dev, SSB_TMSLOW, -+ SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK | -+ reject | SSB_TMSLOW_RESET | -+ core_specific_flags); -+ ssb_flush_tmslow(dev); -+ -+ if (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_INITIATOR) { -+ val = ssb_read32(dev, SSB_IMSTATE); -+ val &= ~SSB_IMSTATE_REJECT; -+ ssb_write32(dev, SSB_IMSTATE, val); -+ } -+ } - - ssb_write32(dev, SSB_TMSLOW, - reject | SSB_TMSLOW_RESET | -@@ -1242,13 +1248,34 @@ void ssb_device_disable(struct ssb_devic - } - EXPORT_SYMBOL(ssb_device_disable); - -+/* Some chipsets need routing known for PCIe and 64-bit DMA */ -+static bool ssb_dma_translation_special_bit(struct ssb_device *dev) -+{ -+ u16 chip_id = dev->bus->chip_id; -+ -+ if (dev->id.coreid == SSB_DEV_80211) { -+ return (chip_id == 0x4322 || chip_id == 43221 || -+ chip_id == 43231 || chip_id == 43222); -+ } -+ -+ return 0; -+} -+ - u32 ssb_dma_translation(struct ssb_device *dev) - { - switch (dev->bus->bustype) { - case SSB_BUSTYPE_SSB: - return 0; - case SSB_BUSTYPE_PCI: -- return SSB_PCI_DMA; -+ if (pci_is_pcie(dev->bus->host_pci) && -+ ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_DMA64) { -+ return SSB_PCIE_DMA_H32; -+ } else { -+ if (ssb_dma_translation_special_bit(dev)) -+ return SSB_PCIE_DMA_H32; -+ else -+ return SSB_PCI_DMA; -+ } - default: - __ssb_dma_not_implemented(dev); - } -@@ -1291,20 +1318,20 @@ EXPORT_SYMBOL(ssb_bus_may_powerdown); - - int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl) - { -- struct ssb_chipcommon *cc; - int err; - enum ssb_clkmode mode; - - err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); - if (err) - goto error; -- cc = &bus->chipco; -- mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST; -- ssb_chipco_set_clockmode(cc, mode); - - #ifdef CONFIG_SSB_DEBUG - bus->powered_up = 1; - #endif -+ -+ mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST; -+ ssb_chipco_set_clockmode(&bus->chipco, mode); -+ - return 0; - error: - ssb_printk(KERN_ERR PFX "Bus powerup failed\n"); -@@ -1312,6 +1339,37 @@ error: - } - EXPORT_SYMBOL(ssb_bus_powerup); - -+static void ssb_broadcast_value(struct ssb_device *dev, -+ u32 address, u32 data) -+{ -+#ifdef CONFIG_SSB_DRIVER_PCICORE -+ /* This is used for both, PCI and ChipCommon core, so be careful. */ -+ BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR); -+ BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA); -+#endif -+ -+ ssb_write32(dev, SSB_CHIPCO_BCAST_ADDR, address); -+ ssb_read32(dev, SSB_CHIPCO_BCAST_ADDR); /* flush */ -+ ssb_write32(dev, SSB_CHIPCO_BCAST_DATA, data); -+ ssb_read32(dev, SSB_CHIPCO_BCAST_DATA); /* flush */ -+} -+ -+void ssb_commit_settings(struct ssb_bus *bus) -+{ -+ struct ssb_device *dev; -+ -+#ifdef CONFIG_SSB_DRIVER_PCICORE -+ dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev; -+#else -+ dev = bus->chipco.dev; -+#endif -+ if (WARN_ON(!dev)) -+ return; -+ /* This forces an update of the cached registers. */ -+ ssb_broadcast_value(dev, 0xFD8, 0); -+} -+EXPORT_SYMBOL(ssb_commit_settings); -+ - u32 ssb_admatch_base(u32 adm) - { - u32 base = 0; ---- a/drivers/ssb/pci.c -+++ b/drivers/ssb/pci.c -@@ -1,7 +1,7 @@ - /* - * Sonics Silicon Backplane PCI-Hostbus related functions. - * -- * Copyright (C) 2005-2006 Michael Buesch <mb@bu3sch.de> -+ * Copyright (C) 2005-2006 Michael Buesch <m@bues.ch> - * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> - * Copyright (C) 2005 Stefano Brivio <st3@riseup.net> - * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> -@@ -331,7 +331,6 @@ static void sprom_extract_r123(struct ss - { - int i; - u16 v; -- s8 gain; - u16 loc[3]; - - if (out->revision == 3) /* rev 3 moved MAC */ -@@ -390,20 +389,12 @@ static void sprom_extract_r123(struct ss - SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0); - - /* Extract the antenna gain values. */ -- gain = r123_extract_antgain(out->revision, in, -- SSB_SPROM1_AGAIN_BG, -- SSB_SPROM1_AGAIN_BG_SHIFT); -- out->antenna_gain.ghz24.a0 = gain; -- out->antenna_gain.ghz24.a1 = gain; -- out->antenna_gain.ghz24.a2 = gain; -- out->antenna_gain.ghz24.a3 = gain; -- gain = r123_extract_antgain(out->revision, in, -- SSB_SPROM1_AGAIN_A, -- SSB_SPROM1_AGAIN_A_SHIFT); -- out->antenna_gain.ghz5.a0 = gain; -- out->antenna_gain.ghz5.a1 = gain; -- out->antenna_gain.ghz5.a2 = gain; -- out->antenna_gain.ghz5.a3 = gain; -+ out->antenna_gain.a0 = r123_extract_antgain(out->revision, in, -+ SSB_SPROM1_AGAIN_BG, -+ SSB_SPROM1_AGAIN_BG_SHIFT); -+ out->antenna_gain.a1 = r123_extract_antgain(out->revision, in, -+ SSB_SPROM1_AGAIN_A, -+ SSB_SPROM1_AGAIN_A_SHIFT); - } - - /* Revs 4 5 and 8 have partially shared layout */ -@@ -468,10 +459,14 @@ static void sprom_extract_r45(struct ssb - SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0); - SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0); - SPEX(boardflags_hi, SSB_SPROM4_BFLHI, 0xFFFF, 0); -+ SPEX(boardflags2_lo, SSB_SPROM4_BFL2LO, 0xFFFF, 0); -+ SPEX(boardflags2_hi, SSB_SPROM4_BFL2HI, 0xFFFF, 0); - } else { - SPEX(country_code, SSB_SPROM5_CCODE, 0xFFFF, 0); - SPEX(boardflags_lo, SSB_SPROM5_BFLLO, 0xFFFF, 0); - SPEX(boardflags_hi, SSB_SPROM5_BFLHI, 0xFFFF, 0); -+ SPEX(boardflags2_lo, SSB_SPROM5_BFL2LO, 0xFFFF, 0); -+ SPEX(boardflags2_hi, SSB_SPROM5_BFL2HI, 0xFFFF, 0); - } - SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A, - SSB_SPROM4_ANTAVAIL_A_SHIFT); -@@ -500,16 +495,14 @@ static void sprom_extract_r45(struct ssb - } - - /* Extract the antenna gain values. */ -- SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01, -+ SPEX(antenna_gain.a0, SSB_SPROM4_AGAIN01, - SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT); -- SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01, -+ SPEX(antenna_gain.a1, SSB_SPROM4_AGAIN01, - SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT); -- SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23, -+ SPEX(antenna_gain.a2, SSB_SPROM4_AGAIN23, - SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT); -- SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23, -+ SPEX(antenna_gain.a3, SSB_SPROM4_AGAIN23, - SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT); -- memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24, -- sizeof(out->antenna_gain.ghz5)); - - sprom_extract_r458(out, in); - -@@ -519,7 +512,13 @@ static void sprom_extract_r45(struct ssb - static void sprom_extract_r8(struct ssb_sprom *out, const u16 *in) - { - int i; -- u16 v; -+ u16 v, o; -+ u16 pwr_info_offset[] = { -+ SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1, -+ SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3 -+ }; -+ BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) != -+ ARRAY_SIZE(out->core_pwr_info)); - - /* extract the MAC address */ - for (i = 0; i < 3; i++) { -@@ -592,16 +591,69 @@ static void sprom_extract_r8(struct ssb_ - SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, 0xFFFFFFFF, 0); - - /* Extract the antenna gain values. */ -- SPEX(antenna_gain.ghz24.a0, SSB_SPROM8_AGAIN01, -+ SPEX(antenna_gain.a0, SSB_SPROM8_AGAIN01, - SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT); -- SPEX(antenna_gain.ghz24.a1, SSB_SPROM8_AGAIN01, -+ SPEX(antenna_gain.a1, SSB_SPROM8_AGAIN01, - SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT); -- SPEX(antenna_gain.ghz24.a2, SSB_SPROM8_AGAIN23, -+ SPEX(antenna_gain.a2, SSB_SPROM8_AGAIN23, - SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT); -- SPEX(antenna_gain.ghz24.a3, SSB_SPROM8_AGAIN23, -+ SPEX(antenna_gain.a3, SSB_SPROM8_AGAIN23, - SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT); -- memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24, -- sizeof(out->antenna_gain.ghz5)); -+ -+ /* Extract cores power info info */ -+ for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) { -+ o = pwr_info_offset[i]; -+ SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI, -+ SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT); -+ SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI, -+ SSB_SPROM8_2G_MAXP, 0); -+ -+ SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0); -+ -+ SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI, -+ SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT); -+ SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI, -+ SSB_SPROM8_5G_MAXP, 0); -+ SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP, -+ SSB_SPROM8_5GH_MAXP, 0); -+ SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP, -+ SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT); -+ -+ SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0); -+ } -+ -+ /* Extract FEM info */ -+ SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G, -+ SSB_SROM8_FEM_TSSIPOS, SSB_SROM8_FEM_TSSIPOS_SHIFT); -+ SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G, -+ SSB_SROM8_FEM_EXTPA_GAIN, SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); -+ SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G, -+ SSB_SROM8_FEM_PDET_RANGE, SSB_SROM8_FEM_PDET_RANGE_SHIFT); -+ SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G, -+ SSB_SROM8_FEM_TR_ISO, SSB_SROM8_FEM_TR_ISO_SHIFT); -+ SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G, -+ SSB_SROM8_FEM_ANTSWLUT, SSB_SROM8_FEM_ANTSWLUT_SHIFT); -+ -+ SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G, -+ SSB_SROM8_FEM_TSSIPOS, SSB_SROM8_FEM_TSSIPOS_SHIFT); -+ SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G, -+ SSB_SROM8_FEM_EXTPA_GAIN, SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); -+ SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G, -+ SSB_SROM8_FEM_PDET_RANGE, SSB_SROM8_FEM_PDET_RANGE_SHIFT); -+ SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G, -+ SSB_SROM8_FEM_TR_ISO, SSB_SROM8_FEM_TR_ISO_SHIFT); -+ SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G, -+ SSB_SROM8_FEM_ANTSWLUT, SSB_SROM8_FEM_ANTSWLUT_SHIFT); - - sprom_extract_r458(out, in); - -@@ -641,7 +693,7 @@ static int sprom_extract(struct ssb_bus - break; - default: - ssb_printk(KERN_WARNING PFX "Unsupported SPROM" -- " revision %d detected. Will extract" -+ " revision %d detected. Will extract" - " v1\n", out->revision); - out->revision = 1; - sprom_extract_r123(out, in); -@@ -658,7 +710,6 @@ static int sprom_extract(struct ssb_bus - static int ssb_pci_sprom_get(struct ssb_bus *bus, - struct ssb_sprom *sprom) - { -- const struct ssb_sprom *fallback; - int err; - u16 *buf; - -@@ -666,7 +717,7 @@ static int ssb_pci_sprom_get(struct ssb_ - ssb_printk(KERN_ERR PFX "No SPROM available!\n"); - return -ENODEV; - } -- if (bus->chipco.dev) { /* can be unavailible! */ -+ if (bus->chipco.dev) { /* can be unavailable! */ - /* - * get SPROM offset: SSB_SPROM_BASE1 except for - * chipcommon rev >= 31 or chip ID is 0x4312 and -@@ -703,10 +754,17 @@ static int ssb_pci_sprom_get(struct ssb_ - if (err) { - /* All CRC attempts failed. - * Maybe there is no SPROM on the device? -- * If we have a fallback, use that. */ -- fallback = ssb_get_fallback_sprom(); -- if (fallback) { -- memcpy(sprom, fallback, sizeof(*sprom)); -+ * Now we ask the arch code if there is some sprom -+ * available for this device in some other storage */ -+ err = ssb_fill_sprom_with_fallback(bus, sprom); -+ if (err) { -+ ssb_printk(KERN_WARNING PFX "WARNING: Using" -+ " fallback SPROM failed (err %d)\n", -+ err); -+ } else { -+ ssb_dprintk(KERN_DEBUG PFX "Using SPROM" -+ " revision %d provided by" -+ " platform.\n", sprom->revision); - err = 0; - goto out_free; - } -@@ -724,12 +782,9 @@ out_free: - static void ssb_pci_get_boardinfo(struct ssb_bus *bus, - struct ssb_boardinfo *bi) - { -- pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_VENDOR_ID, -- &bi->vendor); -- pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID, -- &bi->type); -- pci_read_config_word(bus->host_pci, PCI_REVISION_ID, -- &bi->rev); -+ bi->vendor = bus->host_pci->subsystem_vendor; -+ bi->type = bus->host_pci->subsystem_device; -+ bi->rev = bus->host_pci->revision; - } - - int ssb_pci_get_invariants(struct ssb_bus *bus, ---- a/include/linux/ssb/ssb_regs.h -+++ b/include/linux/ssb/ssb_regs.h -@@ -85,6 +85,8 @@ - #define SSB_IMSTATE_AP_RSV 0x00000030 /* Reserved */ - #define SSB_IMSTATE_IBE 0x00020000 /* In Band Error */ - #define SSB_IMSTATE_TO 0x00040000 /* Timeout */ -+#define SSB_IMSTATE_BUSY 0x01800000 /* Busy (Backplane rev >= 2.3 only) */ -+#define SSB_IMSTATE_REJECT 0x02000000 /* Reject (Backplane rev >= 2.3 only) */ - #define SSB_INTVEC 0x0F94 /* SB Interrupt Mask */ - #define SSB_INTVEC_PCI 0x00000001 /* Enable interrupts for PCI */ - #define SSB_INTVEC_ENET0 0x00000002 /* Enable interrupts for enet 0 */ -@@ -95,9 +97,8 @@ - #define SSB_INTVEC_ENET1 0x00000040 /* Enable interrupts for enet 1 */ - #define SSB_TMSLOW 0x0F98 /* SB Target State Low */ - #define SSB_TMSLOW_RESET 0x00000001 /* Reset */ --#define SSB_TMSLOW_REJECT_22 0x00000002 /* Reject (Backplane rev 2.2) */ -+#define SSB_TMSLOW_REJECT 0x00000002 /* Reject (Standard Backplane) */ - #define SSB_TMSLOW_REJECT_23 0x00000004 /* Reject (Backplane rev 2.3) */ --#define SSB_TMSLOW_PHYCLK 0x00000010 /* MAC PHY Clock Control Enable */ - #define SSB_TMSLOW_CLOCK 0x00010000 /* Clock Enable */ - #define SSB_TMSLOW_FGC 0x00020000 /* Force Gated Clocks On */ - #define SSB_TMSLOW_PE 0x40000000 /* Power Management Enable */ -@@ -268,6 +269,8 @@ - /* SPROM Revision 4 */ - #define SSB_SPROM4_BFLLO 0x0044 /* Boardflags (low 16 bits) */ - #define SSB_SPROM4_BFLHI 0x0046 /* Board Flags Hi */ -+#define SSB_SPROM4_BFL2LO 0x0048 /* Board flags 2 (low 16 bits) */ -+#define SSB_SPROM4_BFL2HI 0x004A /* Board flags 2 Hi */ - #define SSB_SPROM4_IL0MAC 0x004C /* 6 byte MAC address for a/b/g/n */ - #define SSB_SPROM4_CCODE 0x0052 /* Country Code (2 bytes) */ - #define SSB_SPROM4_GPIOA 0x0056 /* Gen. Purpose IO # 0 and 1 */ -@@ -358,6 +361,8 @@ - #define SSB_SPROM5_CCODE 0x0044 /* Country Code (2 bytes) */ - #define SSB_SPROM5_BFLLO 0x004A /* Boardflags (low 16 bits) */ - #define SSB_SPROM5_BFLHI 0x004C /* Board Flags Hi */ -+#define SSB_SPROM5_BFL2LO 0x004E /* Board flags 2 (low 16 bits) */ -+#define SSB_SPROM5_BFL2HI 0x0050 /* Board flags 2 Hi */ - #define SSB_SPROM5_IL0MAC 0x0052 /* 6 byte MAC address for a/b/g/n */ - #define SSB_SPROM5_GPIOA 0x0076 /* Gen. Purpose IO # 0 and 1 */ - #define SSB_SPROM5_GPIOA_P0 0x00FF /* Pin 0 */ -@@ -427,6 +432,56 @@ - #define SSB_SPROM8_RXPO2G 0x00FF /* 2GHz RX power offset */ - #define SSB_SPROM8_RXPO5G 0xFF00 /* 5GHz RX power offset */ - #define SSB_SPROM8_RXPO5G_SHIFT 8 -+#define SSB_SPROM8_FEM2G 0x00AE -+#define SSB_SPROM8_FEM5G 0x00B0 -+#define SSB_SROM8_FEM_TSSIPOS 0x0001 -+#define SSB_SROM8_FEM_TSSIPOS_SHIFT 0 -+#define SSB_SROM8_FEM_EXTPA_GAIN 0x0006 -+#define SSB_SROM8_FEM_EXTPA_GAIN_SHIFT 1 -+#define SSB_SROM8_FEM_PDET_RANGE 0x00F8 -+#define SSB_SROM8_FEM_PDET_RANGE_SHIFT 3 -+#define SSB_SROM8_FEM_TR_ISO 0x0700 -+#define SSB_SROM8_FEM_TR_ISO_SHIFT 8 -+#define SSB_SROM8_FEM_ANTSWLUT 0xF800 -+#define SSB_SROM8_FEM_ANTSWLUT_SHIFT 11 -+#define SSB_SPROM8_THERMAL 0x00B2 -+#define SSB_SPROM8_MPWR_RAWTS 0x00B4 -+#define SSB_SPROM8_TS_SLP_OPT_CORRX 0x00B6 -+#define SSB_SPROM8_FOC_HWIQ_IQSWP 0x00B8 -+#define SSB_SPROM8_PHYCAL_TEMPDELTA 0x00BA -+ -+/* There are 4 blocks with power info sharing the same layout */ -+#define SSB_SROM8_PWR_INFO_CORE0 0x00C0 -+#define SSB_SROM8_PWR_INFO_CORE1 0x00E0 -+#define SSB_SROM8_PWR_INFO_CORE2 0x0100 -+#define SSB_SROM8_PWR_INFO_CORE3 0x0120 -+ -+#define SSB_SROM8_2G_MAXP_ITSSI 0x00 -+#define SSB_SPROM8_2G_MAXP 0x00FF -+#define SSB_SPROM8_2G_ITSSI 0xFF00 -+#define SSB_SPROM8_2G_ITSSI_SHIFT 8 -+#define SSB_SROM8_2G_PA_0 0x02 /* 2GHz power amp settings */ -+#define SSB_SROM8_2G_PA_1 0x04 -+#define SSB_SROM8_2G_PA_2 0x06 -+#define SSB_SROM8_5G_MAXP_ITSSI 0x08 /* 5GHz ITSSI and 5.3GHz Max Power */ -+#define SSB_SPROM8_5G_MAXP 0x00FF -+#define SSB_SPROM8_5G_ITSSI 0xFF00 -+#define SSB_SPROM8_5G_ITSSI_SHIFT 8 -+#define SSB_SPROM8_5GHL_MAXP 0x0A /* 5.2GHz and 5.8GHz Max Power */ -+#define SSB_SPROM8_5GH_MAXP 0x00FF -+#define SSB_SPROM8_5GL_MAXP 0xFF00 -+#define SSB_SPROM8_5GL_MAXP_SHIFT 8 -+#define SSB_SROM8_5G_PA_0 0x0C /* 5.3GHz power amp settings */ -+#define SSB_SROM8_5G_PA_1 0x0E -+#define SSB_SROM8_5G_PA_2 0x10 -+#define SSB_SROM8_5GL_PA_0 0x12 /* 5.2GHz power amp settings */ -+#define SSB_SROM8_5GL_PA_1 0x14 -+#define SSB_SROM8_5GL_PA_2 0x16 -+#define SSB_SROM8_5GH_PA_0 0x18 /* 5.8GHz power amp settings */ -+#define SSB_SROM8_5GH_PA_1 0x1A -+#define SSB_SROM8_5GH_PA_2 0x1C -+ -+/* TODO: Make it deprecated */ - #define SSB_SPROM8_MAXP_BG 0x00C0 /* Max Power 2GHz in path 1 */ - #define SSB_SPROM8_MAXP_BG_MASK 0x00FF /* Mask for Max Power 2GHz */ - #define SSB_SPROM8_ITSSI_BG 0xFF00 /* Mask for path 1 itssi_bg */ -@@ -451,12 +506,53 @@ - #define SSB_SPROM8_PA1HIB0 0x00D8 /* 5.8GHz power amp settings */ - #define SSB_SPROM8_PA1HIB1 0x00DA - #define SSB_SPROM8_PA1HIB2 0x00DC -+ - #define SSB_SPROM8_CCK2GPO 0x0140 /* CCK power offset */ - #define SSB_SPROM8_OFDM2GPO 0x0142 /* 2.4GHz OFDM power offset */ - #define SSB_SPROM8_OFDM5GPO 0x0146 /* 5.3GHz OFDM power offset */ - #define SSB_SPROM8_OFDM5GLPO 0x014A /* 5.2GHz OFDM power offset */ - #define SSB_SPROM8_OFDM5GHPO 0x014E /* 5.8GHz OFDM power offset */ - -+/* Values for boardflags_lo read from SPROM */ -+#define SSB_BFL_BTCOEXIST 0x0001 /* implements Bluetooth coexistance */ -+#define SSB_BFL_PACTRL 0x0002 /* GPIO 9 controlling the PA */ -+#define SSB_BFL_AIRLINEMODE 0x0004 /* implements GPIO 13 radio disable indication */ -+#define SSB_BFL_RSSI 0x0008 /* software calculates nrssi slope. */ -+#define SSB_BFL_ENETSPI 0x0010 /* has ephy roboswitch spi */ -+#define SSB_BFL_XTAL_NOSLOW 0x0020 /* no slow clock available */ -+#define SSB_BFL_CCKHIPWR 0x0040 /* can do high power CCK transmission */ -+#define SSB_BFL_ENETADM 0x0080 /* has ADMtek switch */ -+#define SSB_BFL_ENETVLAN 0x0100 /* can do vlan */ -+#define SSB_BFL_AFTERBURNER 0x0200 /* supports Afterburner mode */ -+#define SSB_BFL_NOPCI 0x0400 /* board leaves PCI floating */ -+#define SSB_BFL_FEM 0x0800 /* supports the Front End Module */ -+#define SSB_BFL_EXTLNA 0x1000 /* has an external LNA */ -+#define SSB_BFL_HGPA 0x2000 /* had high gain PA */ -+#define SSB_BFL_BTCMOD 0x4000 /* BFL_BTCOEXIST is given in alternate GPIOs */ -+#define SSB_BFL_ALTIQ 0x8000 /* alternate I/Q settings */ -+ -+/* Values for boardflags_hi read from SPROM */ -+#define SSB_BFH_NOPA 0x0001 /* has no PA */ -+#define SSB_BFH_RSSIINV 0x0002 /* RSSI uses positive slope (not TSSI) */ -+#define SSB_BFH_PAREF 0x0004 /* uses the PARef LDO */ -+#define SSB_BFH_3TSWITCH 0x0008 /* uses a triple throw switch shared with bluetooth */ -+#define SSB_BFH_PHASESHIFT 0x0010 /* can support phase shifter */ -+#define SSB_BFH_BUCKBOOST 0x0020 /* has buck/booster */ -+#define SSB_BFH_FEM_BT 0x0040 /* has FEM and switch to share antenna with bluetooth */ -+ -+/* Values for boardflags2_lo read from SPROM */ -+#define SSB_BFL2_RXBB_INT_REG_DIS 0x0001 /* external RX BB regulator present */ -+#define SSB_BFL2_APLL_WAR 0x0002 /* alternative A-band PLL settings implemented */ -+#define SSB_BFL2_TXPWRCTRL_EN 0x0004 /* permits enabling TX Power Control */ -+#define SSB_BFL2_2X4_DIV 0x0008 /* 2x4 diversity switch */ -+#define SSB_BFL2_5G_PWRGAIN 0x0010 /* supports 5G band power gain */ -+#define SSB_BFL2_PCIEWAR_OVR 0x0020 /* overrides ASPM and Clkreq settings */ -+#define SSB_BFL2_CAESERS_BRD 0x0040 /* is Caesers board (unused) */ -+#define SSB_BFL2_BTC3WIRE 0x0080 /* used 3-wire bluetooth coexist */ -+#define SSB_BFL2_SKWRKFEM_BRD 0x0100 /* 4321mcm93 uses Skyworks FEM */ -+#define SSB_BFL2_SPUR_WAR 0x0200 /* has a workaround for clock-harmonic spurs */ -+#define SSB_BFL2_GPLL_WAR 0x0400 /* altenative G-band PLL settings implemented */ -+ - /* Values for SSB_SPROM1_BINF_CCODE */ - enum { - SSB_SPROM1CCODE_WORLD = 0, ---- a/drivers/ssb/driver_chipcommon.c -+++ b/drivers/ssb/driver_chipcommon.c -@@ -3,7 +3,7 @@ - * Broadcom ChipCommon core driver - * - * Copyright 2005, Broadcom Corporation -- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -@@ -46,40 +46,66 @@ void ssb_chipco_set_clockmode(struct ssb - if (!ccdev) - return; - bus = ccdev->bus; -+ -+ /* We support SLOW only on 6..9 */ -+ if (ccdev->id.revision >= 10 && mode == SSB_CLKMODE_SLOW) -+ mode = SSB_CLKMODE_DYNAMIC; -+ -+ if (cc->capabilities & SSB_CHIPCO_CAP_PMU) -+ return; /* PMU controls clockmode, separated function needed */ -+ SSB_WARN_ON(ccdev->id.revision >= 20); -+ - /* chipcommon cores prior to rev6 don't support dynamic clock control */ - if (ccdev->id.revision < 6) - return; -- /* chipcommon cores rev10 are a whole new ball game */ -+ -+ /* ChipCommon cores rev10+ need testing */ - if (ccdev->id.revision >= 10) - return; -+ - if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) - return; - - switch (mode) { -- case SSB_CLKMODE_SLOW: -+ case SSB_CLKMODE_SLOW: /* For revs 6..9 only */ - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW; - chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); - break; - case SSB_CLKMODE_FAST: -- ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */ -- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); -- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; -- tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL; -- chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); -+ if (ccdev->id.revision < 10) { -+ ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */ -+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); -+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; -+ tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL; -+ chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); -+ } else { -+ chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL, -+ (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) | -+ SSB_CHIPCO_SYSCLKCTL_FORCEHT)); -+ /* udelay(150); TODO: not available in early init */ -+ } - break; - case SSB_CLKMODE_DYNAMIC: -- tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); -- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; -- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL; -- tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL; -- if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL) -- tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL; -- chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); -- -- /* for dynamic control, we have to release our xtal_pu "force on" */ -- if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL) -- ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0); -+ if (ccdev->id.revision < 10) { -+ tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); -+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; -+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL; -+ tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL; -+ if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != -+ SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL) -+ tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL; -+ chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); -+ -+ /* For dynamic control, we have to release our xtal_pu -+ * "force on" */ -+ if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL) -+ ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0); -+ } else { -+ chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL, -+ (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) & -+ ~SSB_CHIPCO_SYSCLKCTL_FORCEHT)); -+ } - break; - default: - SSB_WARN_ON(1); -@@ -260,6 +286,12 @@ void ssb_chipcommon_init(struct ssb_chip - if (cc->dev->id.revision >= 11) - cc->status = chipco_read32(cc, SSB_CHIPCO_CHIPSTAT); - ssb_dprintk(KERN_INFO PFX "chipcommon status is 0x%x\n", cc->status); -+ -+ if (cc->dev->id.revision >= 20) { -+ chipco_write32(cc, SSB_CHIPCO_GPIOPULLUP, 0); -+ chipco_write32(cc, SSB_CHIPCO_GPIOPULLDOWN, 0); -+ } -+ - ssb_pmu_init(cc); - chipco_powercontrol_init(cc); - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); ---- a/drivers/ssb/driver_chipcommon_pmu.c -+++ b/drivers/ssb/driver_chipcommon_pmu.c -@@ -2,7 +2,7 @@ - * Sonics Silicon Backplane - * Broadcom ChipCommon Power Management Unit driver - * -- * Copyright 2009, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2009, Michael Buesch <m@bues.ch> - * Copyright 2007, Broadcom Corporation - * - * Licensed under the GNU/GPL. See COPYING for details. -@@ -12,6 +12,9 @@ - #include <linux/ssb/ssb_regs.h> - #include <linux/ssb/ssb_driver_chipcommon.h> - #include <linux/delay.h> -+#ifdef CONFIG_BCM47XX -+#include <asm/mach-bcm47xx/nvram.h> -+#endif - - #include "ssb_private.h" - -@@ -91,10 +94,6 @@ static void ssb_pmu0_pllinit_r0(struct s - u32 pmuctl, tmp, pllctl; - unsigned int i; - -- if ((bus->chip_id == 0x5354) && !crystalfreq) { -- /* The 5354 crystal freq is 25MHz */ -- crystalfreq = 25000; -- } - if (crystalfreq) - e = pmu0_plltab_find_entry(crystalfreq); - if (!e) -@@ -320,7 +319,11 @@ static void ssb_pmu_pll_init(struct ssb_ - u32 crystalfreq = 0; /* in kHz. 0 = keep default freq. */ - - if (bus->bustype == SSB_BUSTYPE_SSB) { -- /* TODO: The user may override the crystal frequency. */ -+#ifdef CONFIG_BCM47XX -+ char buf[20]; -+ if (nvram_getenv("xtalfreq", buf, sizeof(buf)) >= 0) -+ crystalfreq = simple_strtoul(buf, NULL, 0); -+#endif - } - - switch (bus->chip_id) { -@@ -329,7 +332,11 @@ static void ssb_pmu_pll_init(struct ssb_ - ssb_pmu1_pllinit_r0(cc, crystalfreq); - break; - case 0x4328: -+ ssb_pmu0_pllinit_r0(cc, crystalfreq); -+ break; - case 0x5354: -+ if (crystalfreq == 0) -+ crystalfreq = 25000; - ssb_pmu0_pllinit_r0(cc, crystalfreq); - break; - case 0x4322: -@@ -417,12 +424,14 @@ static void ssb_pmu_resources_init(struc - u32 min_msk = 0, max_msk = 0; - unsigned int i; - const struct pmu_res_updown_tab_entry *updown_tab = NULL; -- unsigned int updown_tab_size; -+ unsigned int updown_tab_size = 0; - const struct pmu_res_depend_tab_entry *depend_tab = NULL; -- unsigned int depend_tab_size; -+ unsigned int depend_tab_size = 0; - - switch (bus->chip_id) { - case 0x4312: -+ min_msk = 0xCBB; -+ break; - case 0x4322: - /* We keep the default settings: - * min_msk = 0xCBB -@@ -604,3 +613,34 @@ void ssb_pmu_set_ldo_paref(struct ssb_ch - - EXPORT_SYMBOL(ssb_pmu_set_ldo_voltage); - EXPORT_SYMBOL(ssb_pmu_set_ldo_paref); -+ -+u32 ssb_pmu_get_cpu_clock(struct ssb_chipcommon *cc) -+{ -+ struct ssb_bus *bus = cc->dev->bus; -+ -+ switch (bus->chip_id) { -+ case 0x5354: -+ /* 5354 chip uses a non programmable PLL of frequency 240MHz */ -+ return 240000000; -+ default: -+ ssb_printk(KERN_ERR PFX -+ "ERROR: PMU cpu clock unknown for device %04X\n", -+ bus->chip_id); -+ return 0; -+ } -+} -+ -+u32 ssb_pmu_get_controlclock(struct ssb_chipcommon *cc) -+{ -+ struct ssb_bus *bus = cc->dev->bus; -+ -+ switch (bus->chip_id) { -+ case 0x5354: -+ return 120000000; -+ default: -+ ssb_printk(KERN_ERR PFX -+ "ERROR: PMU controlclock unknown for device %04X\n", -+ bus->chip_id); -+ return 0; -+ } -+} ---- a/drivers/ssb/driver_gige.c -+++ b/drivers/ssb/driver_gige.c -@@ -3,7 +3,7 @@ - * Broadcom Gigabit Ethernet core driver - * - * Copyright 2008, Broadcom Corporation -- * Copyright 2008, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2008, Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -@@ -106,8 +106,9 @@ void gige_pcicfg_write32(struct ssb_gige - gige_write32(dev, SSB_GIGE_PCICFG + offset, value); - } - --static int ssb_gige_pci_read_config(struct pci_bus *bus, unsigned int devfn, -- int reg, int size, u32 *val) -+static int __devinit ssb_gige_pci_read_config(struct pci_bus *bus, -+ unsigned int devfn, int reg, -+ int size, u32 *val) - { - struct ssb_gige *dev = container_of(bus->ops, struct ssb_gige, pci_ops); - unsigned long flags; -@@ -136,8 +137,9 @@ static int ssb_gige_pci_read_config(stru - return PCIBIOS_SUCCESSFUL; - } - --static int ssb_gige_pci_write_config(struct pci_bus *bus, unsigned int devfn, -- int reg, int size, u32 val) -+static int __devinit ssb_gige_pci_write_config(struct pci_bus *bus, -+ unsigned int devfn, int reg, -+ int size, u32 val) - { - struct ssb_gige *dev = container_of(bus->ops, struct ssb_gige, pci_ops); - unsigned long flags; -@@ -166,7 +168,8 @@ static int ssb_gige_pci_write_config(str - return PCIBIOS_SUCCESSFUL; - } - --static int ssb_gige_probe(struct ssb_device *sdev, const struct ssb_device_id *id) -+static int __devinit ssb_gige_probe(struct ssb_device *sdev, -+ const struct ssb_device_id *id) - { - struct ssb_gige *dev; - u32 base, tmslow, tmshigh; ---- a/drivers/ssb/driver_pcicore.c -+++ b/drivers/ssb/driver_pcicore.c -@@ -3,7 +3,7 @@ - * Broadcom PCI-core driver - * - * Copyright 2005, Broadcom Corporation -- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -@@ -15,6 +15,11 @@ - - #include "ssb_private.h" - -+static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address); -+static void ssb_pcie_write(struct ssb_pcicore *pc, u32 address, u32 data); -+static u16 ssb_pcie_mdio_read(struct ssb_pcicore *pc, u8 device, u8 address); -+static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device, -+ u8 address, u16 data); - - static inline - u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset) -@@ -69,7 +74,7 @@ static u32 get_cfgspace_addr(struct ssb_ - u32 tmp; - - /* We do only have one cardbus device behind the bridge. */ -- if (pc->cardbusmode && (dev >= 1)) -+ if (pc->cardbusmode && (dev > 1)) - goto out; - - if (bus == 0) { -@@ -309,7 +314,7 @@ int ssb_pcicore_pcibios_map_irq(const st - return ssb_mips_irq(extpci_core->dev) + 2; - } - --static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc) -+static void __devinit ssb_pcicore_init_hostmode(struct ssb_pcicore *pc) - { - u32 val; - -@@ -374,7 +379,7 @@ static void ssb_pcicore_init_hostmode(st - register_pci_controller(&ssb_pcicore_controller); - } - --static int pcicore_is_in_hostmode(struct ssb_pcicore *pc) -+static int __devinit pcicore_is_in_hostmode(struct ssb_pcicore *pc) - { - struct ssb_bus *bus = pc->dev->bus; - u16 chipid_top; -@@ -403,25 +408,137 @@ static int pcicore_is_in_hostmode(struct - } - #endif /* CONFIG_SSB_PCICORE_HOSTMODE */ - -+/************************************************** -+ * Workarounds. -+ **************************************************/ -+ -+static void __devinit ssb_pcicore_fix_sprom_core_index(struct ssb_pcicore *pc) -+{ -+ u16 tmp = pcicore_read16(pc, SSB_PCICORE_SPROM(0)); -+ if (((tmp & 0xF000) >> 12) != pc->dev->core_index) { -+ tmp &= ~0xF000; -+ tmp |= (pc->dev->core_index << 12); -+ pcicore_write16(pc, SSB_PCICORE_SPROM(0), tmp); -+ } -+} -+ -+static u8 ssb_pcicore_polarity_workaround(struct ssb_pcicore *pc) -+{ -+ return (ssb_pcie_read(pc, 0x204) & 0x10) ? 0xC0 : 0x80; -+} -+ -+static void ssb_pcicore_serdes_workaround(struct ssb_pcicore *pc) -+{ -+ const u8 serdes_pll_device = 0x1D; -+ const u8 serdes_rx_device = 0x1F; -+ u16 tmp; -+ -+ ssb_pcie_mdio_write(pc, serdes_rx_device, 1 /* Control */, -+ ssb_pcicore_polarity_workaround(pc)); -+ tmp = ssb_pcie_mdio_read(pc, serdes_pll_device, 1 /* Control */); -+ if (tmp & 0x4000) -+ ssb_pcie_mdio_write(pc, serdes_pll_device, 1, tmp & ~0x4000); -+} -+ -+static void ssb_pcicore_pci_setup_workarounds(struct ssb_pcicore *pc) -+{ -+ struct ssb_device *pdev = pc->dev; -+ struct ssb_bus *bus = pdev->bus; -+ u32 tmp; -+ -+ tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); -+ tmp |= SSB_PCICORE_SBTOPCI_PREF; -+ tmp |= SSB_PCICORE_SBTOPCI_BURST; -+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); -+ -+ if (pdev->id.revision < 5) { -+ tmp = ssb_read32(pdev, SSB_IMCFGLO); -+ tmp &= ~SSB_IMCFGLO_SERTO; -+ tmp |= 2; -+ tmp &= ~SSB_IMCFGLO_REQTO; -+ tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT; -+ ssb_write32(pdev, SSB_IMCFGLO, tmp); -+ ssb_commit_settings(bus); -+ } else if (pdev->id.revision >= 11) { -+ tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); -+ tmp |= SSB_PCICORE_SBTOPCI_MRM; -+ pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); -+ } -+} -+ -+static void ssb_pcicore_pcie_setup_workarounds(struct ssb_pcicore *pc) -+{ -+ u32 tmp; -+ u8 rev = pc->dev->id.revision; -+ -+ if (rev == 0 || rev == 1) { -+ /* TLP Workaround register. */ -+ tmp = ssb_pcie_read(pc, 0x4); -+ tmp |= 0x8; -+ ssb_pcie_write(pc, 0x4, tmp); -+ } -+ if (rev == 1) { -+ /* DLLP Link Control register. */ -+ tmp = ssb_pcie_read(pc, 0x100); -+ tmp |= 0x40; -+ ssb_pcie_write(pc, 0x100, tmp); -+ } -+ -+ if (rev == 0) { -+ const u8 serdes_rx_device = 0x1F; -+ -+ ssb_pcie_mdio_write(pc, serdes_rx_device, -+ 2 /* Timer */, 0x8128); -+ ssb_pcie_mdio_write(pc, serdes_rx_device, -+ 6 /* CDR */, 0x0100); -+ ssb_pcie_mdio_write(pc, serdes_rx_device, -+ 7 /* CDR BW */, 0x1466); -+ } else if (rev == 3 || rev == 4 || rev == 5) { -+ /* TODO: DLLP Power Management Threshold */ -+ ssb_pcicore_serdes_workaround(pc); -+ /* TODO: ASPM */ -+ } else if (rev == 7) { -+ /* TODO: No PLL down */ -+ } -+ -+ if (rev >= 6) { -+ /* Miscellaneous Configuration Fixup */ -+ tmp = pcicore_read16(pc, SSB_PCICORE_SPROM(5)); -+ if (!(tmp & 0x8000)) -+ pcicore_write16(pc, SSB_PCICORE_SPROM(5), -+ tmp | 0x8000); -+ } -+} - - /************************************************** - * Generic and Clientmode operation code. - **************************************************/ - --static void ssb_pcicore_init_clientmode(struct ssb_pcicore *pc) -+static void __devinit ssb_pcicore_init_clientmode(struct ssb_pcicore *pc) - { -+ struct ssb_device *pdev = pc->dev; -+ struct ssb_bus *bus = pdev->bus; -+ -+ if (bus->bustype == SSB_BUSTYPE_PCI) -+ ssb_pcicore_fix_sprom_core_index(pc); -+ - /* Disable PCI interrupts. */ -- ssb_write32(pc->dev, SSB_INTVEC, 0); -+ ssb_write32(pdev, SSB_INTVEC, 0); -+ -+ /* Additional PCIe always once-executed workarounds */ -+ if (pc->dev->id.coreid == SSB_DEV_PCIE) { -+ ssb_pcicore_serdes_workaround(pc); -+ /* TODO: ASPM */ -+ /* TODO: Clock Request Update */ -+ } - } - --void ssb_pcicore_init(struct ssb_pcicore *pc) -+void __devinit ssb_pcicore_init(struct ssb_pcicore *pc) - { - struct ssb_device *dev = pc->dev; -- struct ssb_bus *bus; - - if (!dev) - return; -- bus = dev->bus; - if (!ssb_device_is_enabled(dev)) - ssb_device_enable(dev, 0); - -@@ -446,11 +563,35 @@ static void ssb_pcie_write(struct ssb_pc - pcicore_write32(pc, 0x134, data); - } - --static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device, -- u8 address, u16 data) -+static void ssb_pcie_mdio_set_phy(struct ssb_pcicore *pc, u8 phy) -+{ -+ const u16 mdio_control = 0x128; -+ const u16 mdio_data = 0x12C; -+ u32 v; -+ int i; -+ -+ v = (1 << 30); /* Start of Transaction */ -+ v |= (1 << 28); /* Write Transaction */ -+ v |= (1 << 17); /* Turnaround */ -+ v |= (0x1F << 18); -+ v |= (phy << 4); -+ pcicore_write32(pc, mdio_data, v); -+ -+ udelay(10); -+ for (i = 0; i < 200; i++) { -+ v = pcicore_read32(pc, mdio_control); -+ if (v & 0x100 /* Trans complete */) -+ break; -+ msleep(1); -+ } -+} -+ -+static u16 ssb_pcie_mdio_read(struct ssb_pcicore *pc, u8 device, u8 address) - { - const u16 mdio_control = 0x128; - const u16 mdio_data = 0x12C; -+ int max_retries = 10; -+ u16 ret = 0; - u32 v; - int i; - -@@ -458,46 +599,68 @@ static void ssb_pcie_mdio_write(struct s - v |= 0x2; /* MDIO Clock Divisor */ - pcicore_write32(pc, mdio_control, v); - -+ if (pc->dev->id.revision >= 10) { -+ max_retries = 200; -+ ssb_pcie_mdio_set_phy(pc, device); -+ } -+ - v = (1 << 30); /* Start of Transaction */ -- v |= (1 << 28); /* Write Transaction */ -+ v |= (1 << 29); /* Read Transaction */ - v |= (1 << 17); /* Turnaround */ -- v |= (u32)device << 22; -+ if (pc->dev->id.revision < 10) -+ v |= (u32)device << 22; - v |= (u32)address << 18; -- v |= data; - pcicore_write32(pc, mdio_data, v); - /* Wait for the device to complete the transaction */ - udelay(10); -- for (i = 0; i < 10; i++) { -+ for (i = 0; i < max_retries; i++) { - v = pcicore_read32(pc, mdio_control); -- if (v & 0x100 /* Trans complete */) -+ if (v & 0x100 /* Trans complete */) { -+ udelay(10); -+ ret = pcicore_read32(pc, mdio_data); - break; -+ } - msleep(1); - } - pcicore_write32(pc, mdio_control, 0); -+ return ret; - } - --static void ssb_broadcast_value(struct ssb_device *dev, -- u32 address, u32 data) -+static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device, -+ u8 address, u16 data) - { -- /* This is used for both, PCI and ChipCommon core, so be careful. */ -- BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR); -- BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA); -+ const u16 mdio_control = 0x128; -+ const u16 mdio_data = 0x12C; -+ int max_retries = 10; -+ u32 v; -+ int i; - -- ssb_write32(dev, SSB_PCICORE_BCAST_ADDR, address); -- ssb_read32(dev, SSB_PCICORE_BCAST_ADDR); /* flush */ -- ssb_write32(dev, SSB_PCICORE_BCAST_DATA, data); -- ssb_read32(dev, SSB_PCICORE_BCAST_DATA); /* flush */ --} -+ v = 0x80; /* Enable Preamble Sequence */ -+ v |= 0x2; /* MDIO Clock Divisor */ -+ pcicore_write32(pc, mdio_control, v); - --static void ssb_commit_settings(struct ssb_bus *bus) --{ -- struct ssb_device *dev; -+ if (pc->dev->id.revision >= 10) { -+ max_retries = 200; -+ ssb_pcie_mdio_set_phy(pc, device); -+ } - -- dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev; -- if (WARN_ON(!dev)) -- return; -- /* This forces an update of the cached registers. */ -- ssb_broadcast_value(dev, 0xFD8, 0); -+ v = (1 << 30); /* Start of Transaction */ -+ v |= (1 << 28); /* Write Transaction */ -+ v |= (1 << 17); /* Turnaround */ -+ if (pc->dev->id.revision < 10) -+ v |= (u32)device << 22; -+ v |= (u32)address << 18; -+ v |= data; -+ pcicore_write32(pc, mdio_data, v); -+ /* Wait for the device to complete the transaction */ -+ udelay(10); -+ for (i = 0; i < max_retries; i++) { -+ v = pcicore_read32(pc, mdio_control); -+ if (v & 0x100 /* Trans complete */) -+ break; -+ msleep(1); -+ } -+ pcicore_write32(pc, mdio_control, 0); - } - - int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, -@@ -550,48 +713,10 @@ int ssb_pcicore_dev_irqvecs_enable(struc - if (pc->setup_done) - goto out; - if (pdev->id.coreid == SSB_DEV_PCI) { -- tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); -- tmp |= SSB_PCICORE_SBTOPCI_PREF; -- tmp |= SSB_PCICORE_SBTOPCI_BURST; -- pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); -- -- if (pdev->id.revision < 5) { -- tmp = ssb_read32(pdev, SSB_IMCFGLO); -- tmp &= ~SSB_IMCFGLO_SERTO; -- tmp |= 2; -- tmp &= ~SSB_IMCFGLO_REQTO; -- tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT; -- ssb_write32(pdev, SSB_IMCFGLO, tmp); -- ssb_commit_settings(bus); -- } else if (pdev->id.revision >= 11) { -- tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); -- tmp |= SSB_PCICORE_SBTOPCI_MRM; -- pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); -- } -+ ssb_pcicore_pci_setup_workarounds(pc); - } else { - WARN_ON(pdev->id.coreid != SSB_DEV_PCIE); -- //TODO: Better make defines for all these magic PCIE values. -- if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) { -- /* TLP Workaround register. */ -- tmp = ssb_pcie_read(pc, 0x4); -- tmp |= 0x8; -- ssb_pcie_write(pc, 0x4, tmp); -- } -- if (pdev->id.revision == 0) { -- const u8 serdes_rx_device = 0x1F; -- -- ssb_pcie_mdio_write(pc, serdes_rx_device, -- 2 /* Timer */, 0x8128); -- ssb_pcie_mdio_write(pc, serdes_rx_device, -- 6 /* CDR */, 0x0100); -- ssb_pcie_mdio_write(pc, serdes_rx_device, -- 7 /* CDR BW */, 0x1466); -- } else if (pdev->id.revision == 1) { -- /* DLLP Link Control register. */ -- tmp = ssb_pcie_read(pc, 0x100); -- tmp |= 0x40; -- ssb_pcie_write(pc, 0x100, tmp); -- } -+ ssb_pcicore_pcie_setup_workarounds(pc); - } - pc->setup_done = 1; - out: ---- a/drivers/ssb/pcihost_wrapper.c -+++ b/drivers/ssb/pcihost_wrapper.c -@@ -6,7 +6,7 @@ - * Copyright (c) 2005 Stefano Brivio <st3@riseup.net> - * Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> - * Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> -- * Copyright (c) 2005-2007 Michael Buesch <mbuesch@freenet.de> -+ * Copyright (c) 2005-2007 Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -@@ -53,8 +53,8 @@ static int ssb_pcihost_resume(struct pci - # define ssb_pcihost_resume NULL - #endif /* CONFIG_PM */ - --static int ssb_pcihost_probe(struct pci_dev *dev, -- const struct pci_device_id *id) -+static int __devinit ssb_pcihost_probe(struct pci_dev *dev, -+ const struct pci_device_id *id) - { - struct ssb_bus *ssb; - int err = -ENOMEM; -@@ -110,7 +110,7 @@ static void ssb_pcihost_remove(struct pc - pci_set_drvdata(dev, NULL); - } - --int ssb_pcihost_register(struct pci_driver *driver) -+int __devinit ssb_pcihost_register(struct pci_driver *driver) - { - driver->probe = ssb_pcihost_probe; - driver->remove = ssb_pcihost_remove; ---- a/drivers/ssb/scan.c -+++ b/drivers/ssb/scan.c -@@ -2,7 +2,7 @@ - * Sonics Silicon Backplane - * Bus scanning - * -- * Copyright (C) 2005-2007 Michael Buesch <mb@bu3sch.de> -+ * Copyright (C) 2005-2007 Michael Buesch <m@bues.ch> - * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> - * Copyright (C) 2005 Stefano Brivio <st3@riseup.net> - * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> -@@ -258,7 +258,10 @@ static int we_support_multiple_80211_cor - #ifdef CONFIG_SSB_PCIHOST - if (bus->bustype == SSB_BUSTYPE_PCI) { - if (bus->host_pci->vendor == PCI_VENDOR_ID_BROADCOM && -- bus->host_pci->device == 0x4324) -+ ((bus->host_pci->device == 0x4313) || -+ (bus->host_pci->device == 0x431A) || -+ (bus->host_pci->device == 0x4321) || -+ (bus->host_pci->device == 0x4324))) - return 1; - } - #endif /* CONFIG_SSB_PCIHOST */ -@@ -307,8 +310,7 @@ int ssb_bus_scan(struct ssb_bus *bus, - } else { - if (bus->bustype == SSB_BUSTYPE_PCI) { - bus->chip_id = pcidev_to_chipid(bus->host_pci); -- pci_read_config_word(bus->host_pci, PCI_REVISION_ID, -- &bus->chip_rev); -+ bus->chip_rev = bus->host_pci->revision; - bus->chip_package = 0; - } else { - bus->chip_id = 0x4710; -@@ -316,6 +318,9 @@ int ssb_bus_scan(struct ssb_bus *bus, - bus->chip_package = 0; - } - } -+ ssb_printk(KERN_INFO PFX "Found chip with id 0x%04X, rev 0x%02X and " -+ "package 0x%02X\n", bus->chip_id, bus->chip_rev, -+ bus->chip_package); - if (!bus->nr_devices) - bus->nr_devices = chipid_to_nrcores(bus->chip_id); - if (bus->nr_devices > ARRAY_SIZE(bus->devices)) { ---- a/drivers/ssb/sprom.c -+++ b/drivers/ssb/sprom.c -@@ -2,7 +2,7 @@ - * Sonics Silicon Backplane - * Common SPROM support routines - * -- * Copyright (C) 2005-2008 Michael Buesch <mb@bu3sch.de> -+ * Copyright (C) 2005-2008 Michael Buesch <m@bues.ch> - * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> - * Copyright (C) 2005 Stefano Brivio <st3@riseup.net> - * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> -@@ -17,7 +17,7 @@ - #include <linux/slab.h> - - --static const struct ssb_sprom *fallback_sprom; -+static int(*get_fallback_sprom)(struct ssb_bus *dev, struct ssb_sprom *out); - - - static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len, -@@ -145,36 +145,43 @@ out: - } - - /** -- * ssb_arch_set_fallback_sprom - Set a fallback SPROM for use if no SPROM is found. -+ * ssb_arch_register_fallback_sprom - Registers a method providing a -+ * fallback SPROM if no SPROM is found. - * -- * @sprom: The SPROM data structure to register. -+ * @sprom_callback: The callback function. - * -- * With this function the architecture implementation may register a fallback -- * SPROM data structure. The fallback is only used for PCI based SSB devices, -- * where no valid SPROM can be found in the shadow registers. -+ * With this function the architecture implementation may register a -+ * callback handler which fills the SPROM data structure. The fallback is -+ * only used for PCI based SSB devices, where no valid SPROM can be found -+ * in the shadow registers. -+ * -+ * This function is useful for weird architectures that have a half-assed -+ * SSB device hardwired to their PCI bus. -+ * -+ * Note that it does only work with PCI attached SSB devices. PCMCIA -+ * devices currently don't use this fallback. -+ * Architectures must provide the SPROM for native SSB devices anyway, so -+ * the fallback also isn't used for native devices. - * -- * This function is useful for weird architectures that have a half-assed SSB device -- * hardwired to their PCI bus. -- * -- * Note that it does only work with PCI attached SSB devices. PCMCIA devices currently -- * don't use this fallback. -- * Architectures must provide the SPROM for native SSB devices anyway, -- * so the fallback also isn't used for native devices. -- * -- * This function is available for architecture code, only. So it is not exported. -+ * This function is available for architecture code, only. So it is not -+ * exported. - */ --int ssb_arch_set_fallback_sprom(const struct ssb_sprom *sprom) -+int ssb_arch_register_fallback_sprom(int (*sprom_callback)(struct ssb_bus *bus, -+ struct ssb_sprom *out)) - { -- if (fallback_sprom) -+ if (get_fallback_sprom) - return -EEXIST; -- fallback_sprom = sprom; -+ get_fallback_sprom = sprom_callback; - - return 0; - } - --const struct ssb_sprom *ssb_get_fallback_sprom(void) -+int ssb_fill_sprom_with_fallback(struct ssb_bus *bus, struct ssb_sprom *out) - { -- return fallback_sprom; -+ if (!get_fallback_sprom) -+ return -ENOENT; -+ -+ return get_fallback_sprom(bus, out); - } - - /* http://bcm-v4.sipsolutions.net/802.11/IsSpromAvailable */ -@@ -185,7 +192,7 @@ bool ssb_is_sprom_available(struct ssb_b - /* this routine differs from specs as we do not access SPROM directly - on PCMCIA */ - if (bus->bustype == SSB_BUSTYPE_PCI && -- bus->chipco.dev && /* can be unavailible! */ -+ bus->chipco.dev && /* can be unavailable! */ - bus->chipco.dev->id.revision >= 31) - return bus->chipco.capabilities & SSB_CHIPCO_CAP_SPROM; - ---- a/drivers/ssb/ssb_private.h -+++ b/drivers/ssb/ssb_private.h -@@ -171,7 +171,8 @@ ssize_t ssb_attr_sprom_store(struct ssb_ - const char *buf, size_t count, - int (*sprom_check_crc)(const u16 *sprom, size_t size), - int (*sprom_write)(struct ssb_bus *bus, const u16 *sprom)); --extern const struct ssb_sprom *ssb_get_fallback_sprom(void); -+extern int ssb_fill_sprom_with_fallback(struct ssb_bus *bus, -+ struct ssb_sprom *out); - - - /* core.c */ -@@ -206,4 +207,8 @@ static inline void b43_pci_ssb_bridge_ex - } - #endif /* CONFIG_SSB_B43_PCI_BRIDGE */ - -+/* driver_chipcommon_pmu.c */ -+extern u32 ssb_pmu_get_cpu_clock(struct ssb_chipcommon *cc); -+extern u32 ssb_pmu_get_controlclock(struct ssb_chipcommon *cc); -+ - #endif /* LINUX_SSB_PRIVATE_H_ */ ---- a/include/linux/ssb/ssb.h -+++ b/include/linux/ssb/ssb.h -@@ -16,6 +16,12 @@ struct pcmcia_device; - struct ssb_bus; - struct ssb_driver; - -+struct ssb_sprom_core_pwr_info { -+ u8 itssi_2g, itssi_5g; -+ u8 maxpwr_2g, maxpwr_5gl, maxpwr_5g, maxpwr_5gh; -+ u16 pa_2g[4], pa_5gl[4], pa_5g[4], pa_5gh[4]; -+}; -+ - struct ssb_sprom { - u8 revision; - u8 il0mac[6]; /* MAC address for 802.11b/g */ -@@ -25,8 +31,13 @@ struct ssb_sprom { - u8 et1phyaddr; /* MII address for enet1 */ - u8 et0mdcport; /* MDIO for enet0 */ - u8 et1mdcport; /* MDIO for enet1 */ -- u8 board_rev; /* Board revision number from SPROM. */ -+ u16 board_rev; /* Board revision number from SPROM. */ -+ u16 board_num; /* Board number from SPROM. */ -+ u16 board_type; /* Board type from SPROM. */ - u8 country_code; /* Country Code */ -+ char alpha2[2]; /* Country Code as two chars like EU or US */ -+ u8 leddc_on_time; /* LED Powersave Duty Cycle On Count */ -+ u8 leddc_off_time; /* LED Powersave Duty Cycle Off Count */ - u8 ant_available_a; /* 2GHz antenna available bits (up to 4) */ - u8 ant_available_bg; /* 5GHz antenna available bits (up to 4) */ - u16 pa0b0; -@@ -45,10 +56,10 @@ struct ssb_sprom { - u8 gpio1; /* GPIO pin 1 */ - u8 gpio2; /* GPIO pin 2 */ - u8 gpio3; /* GPIO pin 3 */ -- u16 maxpwr_bg; /* 2.4GHz Amplifier Max Power (in dBm Q5.2) */ -- u16 maxpwr_al; /* 5.2GHz Amplifier Max Power (in dBm Q5.2) */ -- u16 maxpwr_a; /* 5.3GHz Amplifier Max Power (in dBm Q5.2) */ -- u16 maxpwr_ah; /* 5.8GHz Amplifier Max Power (in dBm Q5.2) */ -+ u8 maxpwr_bg; /* 2.4GHz Amplifier Max Power (in dBm Q5.2) */ -+ u8 maxpwr_al; /* 5.2GHz Amplifier Max Power (in dBm Q5.2) */ -+ u8 maxpwr_a; /* 5.3GHz Amplifier Max Power (in dBm Q5.2) */ -+ u8 maxpwr_ah; /* 5.8GHz Amplifier Max Power (in dBm Q5.2) */ - u8 itssi_a; /* Idle TSSI Target for A-PHY */ - u8 itssi_bg; /* Idle TSSI Target for B/G-PHY */ - u8 tri2g; /* 2.4GHz TX isolation */ -@@ -59,8 +70,8 @@ struct ssb_sprom { - u8 txpid5gl[4]; /* 4.9 - 5.1GHz TX power index */ - u8 txpid5g[4]; /* 5.1 - 5.5GHz TX power index */ - u8 txpid5gh[4]; /* 5.5 - ...GHz TX power index */ -- u8 rxpo2g; /* 2GHz RX power offset */ -- u8 rxpo5g; /* 5GHz RX power offset */ -+ s8 rxpo2g; /* 2GHz RX power offset */ -+ s8 rxpo5g; /* 5GHz RX power offset */ - u8 rssisav2g; /* 2GHz RSSI params */ - u8 rssismc2g; - u8 rssismf2g; -@@ -80,26 +91,104 @@ struct ssb_sprom { - u16 boardflags2_hi; /* Board flags (bits 48-63) */ - /* TODO store board flags in a single u64 */ - -+ struct ssb_sprom_core_pwr_info core_pwr_info[4]; -+ - /* Antenna gain values for up to 4 antennas - * on each band. Values in dBm/4 (Q5.2). Negative gain means the - * loss in the connectors is bigger than the gain. */ - struct { -- struct { -- s8 a0, a1, a2, a3; -- } ghz24; /* 2.4GHz band */ -- struct { -- s8 a0, a1, a2, a3; -- } ghz5; /* 5GHz band */ -+ s8 a0, a1, a2, a3; - } antenna_gain; - -- /* TODO - add any parameters needed from rev 2, 3, 4, 5 or 8 SPROMs */ -+ struct { -+ struct { -+ u8 tssipos, extpa_gain, pdet_range, tr_iso, antswlut; -+ } ghz2; -+ struct { -+ u8 tssipos, extpa_gain, pdet_range, tr_iso, antswlut; -+ } ghz5; -+ } fem; -+ -+ u16 mcs2gpo[8]; -+ u16 mcs5gpo[8]; -+ u16 mcs5glpo[8]; -+ u16 mcs5ghpo[8]; -+ u8 opo; -+ -+ u8 rxgainerr2ga[3]; -+ u8 rxgainerr5gla[3]; -+ u8 rxgainerr5gma[3]; -+ u8 rxgainerr5gha[3]; -+ u8 rxgainerr5gua[3]; -+ -+ u8 noiselvl2ga[3]; -+ u8 noiselvl5gla[3]; -+ u8 noiselvl5gma[3]; -+ u8 noiselvl5gha[3]; -+ u8 noiselvl5gua[3]; -+ -+ u8 regrev; -+ u8 txchain; -+ u8 rxchain; -+ u8 antswitch; -+ u16 cddpo; -+ u16 stbcpo; -+ u16 bw40po; -+ u16 bwduppo; -+ -+ u8 tempthresh; -+ u8 tempoffset; -+ u16 rawtempsense; -+ u8 measpower; -+ u8 tempsense_slope; -+ u8 tempcorrx; -+ u8 tempsense_option; -+ u8 freqoffset_corr; -+ u8 iqcal_swp_dis; -+ u8 hw_iqcal_en; -+ u8 elna2g; -+ u8 elna5g; -+ u8 phycal_tempdelta; -+ u8 temps_period; -+ u8 temps_hysteresis; -+ u8 measpower1; -+ u8 measpower2; -+ u8 pcieingress_war; -+ -+ /* power per rate from sromrev 9 */ -+ u16 cckbw202gpo; -+ u16 cckbw20ul2gpo; -+ u32 legofdmbw202gpo; -+ u32 legofdmbw20ul2gpo; -+ u32 legofdmbw205glpo; -+ u32 legofdmbw20ul5glpo; -+ u32 legofdmbw205gmpo; -+ u32 legofdmbw20ul5gmpo; -+ u32 legofdmbw205ghpo; -+ u32 legofdmbw20ul5ghpo; -+ u32 mcsbw202gpo; -+ u32 mcsbw20ul2gpo; -+ u32 mcsbw402gpo; -+ u32 mcsbw205glpo; -+ u32 mcsbw20ul5glpo; -+ u32 mcsbw405glpo; -+ u32 mcsbw205gmpo; -+ u32 mcsbw20ul5gmpo; -+ u32 mcsbw405gmpo; -+ u32 mcsbw205ghpo; -+ u32 mcsbw20ul5ghpo; -+ u32 mcsbw405ghpo; -+ u16 mcs32po; -+ u16 legofdm40duppo; -+ u8 sar2g; -+ u8 sar5g; - }; - - /* Information about the PCB the circuitry is soldered on. */ - struct ssb_boardinfo { - u16 vendor; - u16 type; -- u16 rev; -+ u8 rev; - }; - - -@@ -229,10 +318,9 @@ struct ssb_driver { - #define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv) - - extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner); --static inline int ssb_driver_register(struct ssb_driver *drv) --{ -- return __ssb_driver_register(drv, THIS_MODULE); --} -+#define ssb_driver_register(drv) \ -+ __ssb_driver_register(drv, THIS_MODULE) -+ - extern void ssb_driver_unregister(struct ssb_driver *drv); - - -@@ -308,7 +396,7 @@ struct ssb_bus { - - /* ID information about the Chip. */ - u16 chip_id; -- u16 chip_rev; -+ u8 chip_rev; - u16 sprom_offset; - u16 sprom_size; /* number of words in sprom */ - u8 chip_package; -@@ -404,7 +492,9 @@ 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 int ssb_arch_register_fallback_sprom( -+ int (*sprom_callback)(struct ssb_bus *bus, -+ struct ssb_sprom *out)); - - /* Suspend a SSB bus. - * Call this from the parent bus suspend routine. */ -@@ -518,6 +608,7 @@ extern int ssb_bus_may_powerdown(struct - * Otherwise static always-on powercontrol will be used. */ - extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl); - -+extern void ssb_commit_settings(struct ssb_bus *bus); - - /* Various helper functions */ - extern u32 ssb_admatch_base(u32 adm); ---- a/include/linux/ssb/ssb_driver_chipcommon.h -+++ b/include/linux/ssb/ssb_driver_chipcommon.h -@@ -8,7 +8,7 @@ - * gpio interface, extbus, and support for serial and parallel flashes. - * - * Copyright 2005, Broadcom Corporation -- * Copyright 2006, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2006, Michael Buesch <m@bues.ch> - * - * Licensed under the GPL version 2. See COPYING for details. - */ -@@ -123,6 +123,8 @@ - #define SSB_CHIPCO_FLASHDATA 0x0048 - #define SSB_CHIPCO_BCAST_ADDR 0x0050 - #define SSB_CHIPCO_BCAST_DATA 0x0054 -+#define SSB_CHIPCO_GPIOPULLUP 0x0058 /* Rev >= 20 only */ -+#define SSB_CHIPCO_GPIOPULLDOWN 0x005C /* Rev >= 20 only */ - #define SSB_CHIPCO_GPIOIN 0x0060 - #define SSB_CHIPCO_GPIOOUT 0x0064 - #define SSB_CHIPCO_GPIOOUTEN 0x0068 -@@ -131,6 +133,9 @@ - #define SSB_CHIPCO_GPIOIRQ 0x0074 - #define SSB_CHIPCO_WATCHDOG 0x0080 - #define SSB_CHIPCO_GPIOTIMER 0x0088 /* LED powersave (corerev >= 16) */ -+#define SSB_CHIPCO_GPIOTIMER_OFFTIME 0x0000FFFF -+#define SSB_CHIPCO_GPIOTIMER_OFFTIME_SHIFT 0 -+#define SSB_CHIPCO_GPIOTIMER_ONTIME 0xFFFF0000 - #define SSB_CHIPCO_GPIOTIMER_ONTIME_SHIFT 16 - #define SSB_CHIPCO_GPIOTOUTM 0x008C /* LED powersave (corerev >= 16) */ - #define SSB_CHIPCO_CLOCK_N 0x0090 -@@ -189,8 +194,10 @@ - #define SSB_CHIPCO_CLKCTLST_HAVEALPREQ 0x00000008 /* ALP available request */ - #define SSB_CHIPCO_CLKCTLST_HAVEHTREQ 0x00000010 /* HT available request */ - #define SSB_CHIPCO_CLKCTLST_HWCROFF 0x00000020 /* Force HW clock request off */ --#define SSB_CHIPCO_CLKCTLST_HAVEHT 0x00010000 /* HT available */ --#define SSB_CHIPCO_CLKCTLST_HAVEALP 0x00020000 /* APL available */ -+#define SSB_CHIPCO_CLKCTLST_HAVEALP 0x00010000 /* ALP available */ -+#define SSB_CHIPCO_CLKCTLST_HAVEHT 0x00020000 /* HT available */ -+#define SSB_CHIPCO_CLKCTLST_4328A0_HAVEHT 0x00010000 /* 4328a0 has reversed bits */ -+#define SSB_CHIPCO_CLKCTLST_4328A0_HAVEALP 0x00020000 /* 4328a0 has reversed bits */ - #define SSB_CHIPCO_HW_WORKAROUND 0x01E4 /* Hardware workaround (rev >= 20) */ - #define SSB_CHIPCO_UART0_DATA 0x0300 - #define SSB_CHIPCO_UART0_IMR 0x0304 ---- a/drivers/ssb/b43_pci_bridge.c -+++ b/drivers/ssb/b43_pci_bridge.c -@@ -5,12 +5,13 @@ - * because of its small size we include it in the SSB core - * instead of creating a standalone module. - * -- * Copyright 2007 Michael Buesch <mb@bu3sch.de> -+ * Copyright 2007 Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - - #include <linux/pci.h> -+#include <linux/module.h> - #include <linux/ssb/ssb.h> - - #include "ssb_private.h" ---- a/drivers/ssb/driver_extif.c -+++ b/drivers/ssb/driver_extif.c -@@ -3,7 +3,7 @@ - * Broadcom EXTIF core driver - * - * Copyright 2005, Broadcom Corporation -- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> - * Copyright 2006, 2007, Felix Fietkau <nbd@openwrt.org> - * Copyright 2007, Aurelien Jarno <aurelien@aurel32.net> - * ---- a/drivers/ssb/driver_mipscore.c -+++ b/drivers/ssb/driver_mipscore.c -@@ -3,7 +3,7 @@ - * Broadcom MIPS core driver - * - * Copyright 2005, Broadcom Corporation -- * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -@@ -208,6 +208,9 @@ u32 ssb_cpu_clock(struct ssb_mipscore *m - struct ssb_bus *bus = mcore->dev->bus; - u32 pll_type, n, m, rate = 0; - -+ if (bus->chipco.capabilities & SSB_CHIPCO_CAP_PMU) -+ return ssb_pmu_get_cpu_clock(&bus->chipco); -+ - if (bus->extif.dev) { - ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m); - } else if (bus->chipco.dev) { ---- a/drivers/ssb/embedded.c -+++ b/drivers/ssb/embedded.c -@@ -3,7 +3,7 @@ - * Embedded systems support code - * - * Copyright 2005-2008, Broadcom Corporation -- * Copyright 2006-2008, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2006-2008, Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ ---- a/drivers/ssb/pcmcia.c -+++ b/drivers/ssb/pcmcia.c -@@ -3,7 +3,7 @@ - * PCMCIA-Hostbus related functions - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> -- * Copyright 2007-2008 Michael Buesch <mb@bu3sch.de> -+ * Copyright 2007-2008 Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ -@@ -676,14 +676,10 @@ static int ssb_pcmcia_do_get_invariants( - case SSB_PCMCIA_CIS_ANTGAIN: - GOTO_ERROR_ON(tuple->TupleDataLen != 2, - "antg tpl size"); -- sprom->antenna_gain.ghz24.a0 = tuple->TupleData[1]; -- sprom->antenna_gain.ghz24.a1 = tuple->TupleData[1]; -- sprom->antenna_gain.ghz24.a2 = tuple->TupleData[1]; -- sprom->antenna_gain.ghz24.a3 = tuple->TupleData[1]; -- sprom->antenna_gain.ghz5.a0 = tuple->TupleData[1]; -- sprom->antenna_gain.ghz5.a1 = tuple->TupleData[1]; -- sprom->antenna_gain.ghz5.a2 = tuple->TupleData[1]; -- sprom->antenna_gain.ghz5.a3 = tuple->TupleData[1]; -+ sprom->antenna_gain.a0 = tuple->TupleData[1]; -+ sprom->antenna_gain.a1 = tuple->TupleData[1]; -+ sprom->antenna_gain.a2 = tuple->TupleData[1]; -+ sprom->antenna_gain.a3 = tuple->TupleData[1]; - break; - case SSB_PCMCIA_CIS_BFLAGS: - GOTO_ERROR_ON((tuple->TupleDataLen != 3) && ---- a/drivers/ssb/sdio.c -+++ b/drivers/ssb/sdio.c -@@ -6,7 +6,7 @@ - * - * Based on drivers/ssb/pcmcia.c - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> -- * Copyright 2007-2008 Michael Buesch <mb@bu3sch.de> -+ * Copyright 2007-2008 Michael Buesch <m@bues.ch> - * - * Licensed under the GNU/GPL. See COPYING for details. - * -@@ -551,14 +551,10 @@ int ssb_sdio_get_invariants(struct ssb_b - case SSB_SDIO_CIS_ANTGAIN: - GOTO_ERROR_ON(tuple->size != 2, - "antg tpl size"); -- sprom->antenna_gain.ghz24.a0 = tuple->data[1]; -- sprom->antenna_gain.ghz24.a1 = tuple->data[1]; -- sprom->antenna_gain.ghz24.a2 = tuple->data[1]; -- sprom->antenna_gain.ghz24.a3 = tuple->data[1]; -- sprom->antenna_gain.ghz5.a0 = tuple->data[1]; -- sprom->antenna_gain.ghz5.a1 = tuple->data[1]; -- sprom->antenna_gain.ghz5.a2 = tuple->data[1]; -- sprom->antenna_gain.ghz5.a3 = tuple->data[1]; -+ sprom->antenna_gain.a0 = tuple->data[1]; -+ sprom->antenna_gain.a1 = tuple->data[1]; -+ sprom->antenna_gain.a2 = tuple->data[1]; -+ sprom->antenna_gain.a3 = tuple->data[1]; - break; - case SSB_SDIO_CIS_BFLAGS: - GOTO_ERROR_ON((tuple->size != 3) && ---- a/include/linux/ssb/ssb_driver_gige.h -+++ b/include/linux/ssb/ssb_driver_gige.h -@@ -2,6 +2,7 @@ - #define LINUX_SSB_DRIVER_GIGE_H_ - - #include <linux/ssb/ssb.h> -+#include <linux/bug.h> - #include <linux/pci.h> - #include <linux/spinlock.h> - diff --git a/target/linux/generic/patches-2.6.38/025-bcma_backport.patch b/target/linux/generic/patches-2.6.38/025-bcma_backport.patch deleted file mode 100644 index db2292ad96..0000000000 --- a/target/linux/generic/patches-2.6.38/025-bcma_backport.patch +++ /dev/null @@ -1,4978 +0,0 @@ ---- /dev/null -+++ b/Documentation/ABI/testing/sysfs-bus-bcma -@@ -0,0 +1,31 @@ -+What: /sys/bus/bcma/devices/.../manuf -+Date: May 2011 -+KernelVersion: 2.6.40 -+Contact: Rafał Miłecki <zajec5@gmail.com> -+Description: -+ Each BCMA core has it's manufacturer id. See -+ include/linux/bcma/bcma.h for possible values. -+ -+What: /sys/bus/bcma/devices/.../id -+Date: May 2011 -+KernelVersion: 2.6.40 -+Contact: Rafał Miłecki <zajec5@gmail.com> -+Description: -+ There are a few types of BCMA cores, they can be identified by -+ id field. -+ -+What: /sys/bus/bcma/devices/.../rev -+Date: May 2011 -+KernelVersion: 2.6.40 -+Contact: Rafał Miłecki <zajec5@gmail.com> -+Description: -+ BCMA cores of the same type can still slightly differ depending -+ on their revision. Use it for detailed programming. -+ -+What: /sys/bus/bcma/devices/.../class -+Date: May 2011 -+KernelVersion: 2.6.40 -+Contact: Rafał Miłecki <zajec5@gmail.com> -+Description: -+ Each BCMA core is identified by few fields, including class it -+ belongs to. See include/linux/bcma/bcma.h for possible values. ---- a/MAINTAINERS -+++ b/MAINTAINERS -@@ -5791,6 +5791,13 @@ S: Maintained - F: drivers/ssb/ - F: include/linux/ssb/ - -+BROADCOM SPECIFIC AMBA DRIVER (BCMA) -+M: Rafał Miłecki <zajec5@gmail.com> -+L: linux-wireless@vger.kernel.org -+S: Maintained -+F: drivers/bcma/ -+F: include/linux/bcma/ -+ - SONY VAIO CONTROL DEVICE DRIVER - M: Mattia Dongili <malattia@linux.it> - L: platform-driver-x86@vger.kernel.org ---- a/drivers/Kconfig -+++ b/drivers/Kconfig -@@ -68,6 +68,8 @@ source "drivers/watchdog/Kconfig" - - source "drivers/ssb/Kconfig" - -+source "drivers/bcma/Kconfig" -+ - source "drivers/mfd/Kconfig" - - source "drivers/regulator/Kconfig" ---- a/drivers/Makefile -+++ b/drivers/Makefile -@@ -110,6 +110,7 @@ obj-$(CONFIG_HID) += hid/ - obj-$(CONFIG_PPC_PS3) += ps3/ - obj-$(CONFIG_OF) += of/ - obj-$(CONFIG_SSB) += ssb/ -+obj-$(CONFIG_BCMA) += bcma/ - obj-$(CONFIG_VHOST_NET) += vhost/ - obj-$(CONFIG_VLYNQ) += vlynq/ - obj-$(CONFIG_STAGING) += staging/ ---- /dev/null -+++ b/drivers/bcma/Kconfig -@@ -0,0 +1,57 @@ -+config BCMA_POSSIBLE -+ bool -+ depends on HAS_IOMEM && HAS_DMA -+ default y -+ -+menu "Broadcom specific AMBA" -+ depends on BCMA_POSSIBLE -+ -+config BCMA -+ tristate "BCMA support" -+ depends on BCMA_POSSIBLE -+ help -+ Bus driver for Broadcom specific Advanced Microcontroller Bus -+ Architecture. -+ -+# Support for Block-I/O. SELECT this from the driver that needs it. -+config BCMA_BLOCKIO -+ bool -+ depends on BCMA -+ -+config BCMA_HOST_PCI_POSSIBLE -+ bool -+ depends on BCMA && PCI = y -+ default y -+ -+config BCMA_HOST_PCI -+ bool "Support for BCMA on PCI-host bus" -+ depends on BCMA_HOST_PCI_POSSIBLE -+ -+config BCMA_DRIVER_PCI_HOSTMODE -+ bool "Driver for PCI core working in hostmode" -+ depends on BCMA && MIPS && BCMA_HOST_PCI -+ help -+ PCI core hostmode operation (external PCI bus). -+ -+config BCMA_HOST_SOC -+ bool -+ depends on BCMA_DRIVER_MIPS -+ -+config BCMA_DRIVER_MIPS -+ bool "BCMA Broadcom MIPS core driver" -+ depends on BCMA && MIPS -+ help -+ Driver for the Broadcom MIPS core attached to Broadcom specific -+ Advanced Microcontroller Bus. -+ -+ If unsure, say N -+ -+config BCMA_DEBUG -+ bool "BCMA debugging" -+ depends on BCMA -+ help -+ This turns on additional debugging messages. -+ -+ If unsure, say N -+ -+endmenu ---- /dev/null -+++ b/drivers/bcma/Makefile -@@ -0,0 +1,10 @@ -+bcma-y += main.o scan.o core.o sprom.o -+bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o -+bcma-y += driver_pci.o -+bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o -+bcma-$(CONFIG_BCMA_DRIVER_MIPS) += driver_mips.o -+bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o -+bcma-$(CONFIG_BCMA_HOST_SOC) += host_soc.o -+obj-$(CONFIG_BCMA) += bcma.o -+ -+ccflags-$(CONFIG_BCMA_DEBUG) := -DDEBUG ---- /dev/null -+++ b/drivers/bcma/README -@@ -0,0 +1,19 @@ -+Broadcom introduced new bus as replacement for older SSB. It is based on AMBA, -+however from programming point of view there is nothing AMBA specific we use. -+ -+Standard AMBA drivers are platform specific, have hardcoded addresses and use -+AMBA standard fields like CID and PID. -+ -+In case of Broadcom's cards every device consists of: -+1) Broadcom specific AMBA device. It is put on AMBA bus, but can not be treated -+ as standard AMBA device. Reading it's CID or PID can cause machine lockup. -+2) AMBA standard devices called ports or wrappers. They have CIDs (AMBA_CID) -+ and PIDs (0x103BB369), but we do not use that info for anything. One of that -+ devices is used for managing Broadcom specific core. -+ -+Addresses of AMBA devices are not hardcoded in driver and have to be read from -+EPROM. -+ -+In this situation we decided to introduce separated bus. It can contain up to -+16 devices identified by Broadcom specific fields: manufacturer, id, revision -+and class. ---- /dev/null -+++ b/drivers/bcma/TODO -@@ -0,0 +1,3 @@ -+- Interrupts -+- Defines for PCI core driver -+- Create kernel Documentation (use info from README) ---- /dev/null -+++ b/drivers/bcma/bcma_private.h -@@ -0,0 +1,59 @@ -+#ifndef LINUX_BCMA_PRIVATE_H_ -+#define LINUX_BCMA_PRIVATE_H_ -+ -+#ifndef pr_fmt -+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -+#endif -+ -+#include <linux/bcma/bcma.h> -+#include <linux/delay.h> -+ -+#define BCMA_CORE_SIZE 0x1000 -+ -+struct bcma_bus; -+ -+/* main.c */ -+int __devinit bcma_bus_register(struct bcma_bus *bus); -+void bcma_bus_unregister(struct bcma_bus *bus); -+int __init bcma_bus_early_register(struct bcma_bus *bus, -+ struct bcma_device *core_cc, -+ struct bcma_device *core_mips); -+#ifdef CONFIG_PM -+int bcma_bus_suspend(struct bcma_bus *bus); -+int bcma_bus_resume(struct bcma_bus *bus); -+#endif -+ -+/* scan.c */ -+int bcma_bus_scan(struct bcma_bus *bus); -+int __init bcma_bus_scan_early(struct bcma_bus *bus, -+ struct bcma_device_id *match, -+ struct bcma_device *core); -+void bcma_init_bus(struct bcma_bus *bus); -+ -+/* sprom.c */ -+int bcma_sprom_get(struct bcma_bus *bus); -+ -+/* driver_chipcommon.c */ -+#ifdef CONFIG_BCMA_DRIVER_MIPS -+void bcma_chipco_serial_init(struct bcma_drv_cc *cc); -+#endif /* CONFIG_BCMA_DRIVER_MIPS */ -+ -+/* driver_chipcommon_pmu.c */ -+u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc); -+u32 bcma_pmu_get_clockcpu(struct bcma_drv_cc *cc); -+ -+#ifdef CONFIG_BCMA_HOST_PCI -+/* host_pci.c */ -+extern int __init bcma_host_pci_init(void); -+extern void __exit bcma_host_pci_exit(void); -+#endif /* CONFIG_BCMA_HOST_PCI */ -+ -+/* driver_pci.c */ -+u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address); -+ -+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE -+bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc); -+void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc); -+#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */ -+ -+#endif ---- /dev/null -+++ b/drivers/bcma/core.c -@@ -0,0 +1,126 @@ -+/* -+ * Broadcom specific AMBA -+ * Core ops -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include <linux/bcma/bcma.h> -+ -+bool bcma_core_is_enabled(struct bcma_device *core) -+{ -+ if ((bcma_aread32(core, BCMA_IOCTL) & (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC)) -+ != BCMA_IOCTL_CLK) -+ return false; -+ if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET) -+ return false; -+ return true; -+} -+EXPORT_SYMBOL_GPL(bcma_core_is_enabled); -+ -+void bcma_core_disable(struct bcma_device *core, u32 flags) -+{ -+ if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET) -+ return; -+ -+ bcma_awrite32(core, BCMA_IOCTL, flags); -+ bcma_aread32(core, BCMA_IOCTL); -+ udelay(10); -+ -+ bcma_awrite32(core, BCMA_RESET_CTL, BCMA_RESET_CTL_RESET); -+ udelay(1); -+} -+EXPORT_SYMBOL_GPL(bcma_core_disable); -+ -+int bcma_core_enable(struct bcma_device *core, u32 flags) -+{ -+ bcma_core_disable(core, flags); -+ -+ bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC | flags)); -+ bcma_aread32(core, BCMA_IOCTL); -+ -+ bcma_awrite32(core, BCMA_RESET_CTL, 0); -+ udelay(1); -+ -+ bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | flags)); -+ bcma_aread32(core, BCMA_IOCTL); -+ udelay(1); -+ -+ return 0; -+} -+EXPORT_SYMBOL_GPL(bcma_core_enable); -+ -+void bcma_core_set_clockmode(struct bcma_device *core, -+ enum bcma_clkmode clkmode) -+{ -+ u16 i; -+ -+ WARN_ON(core->id.id != BCMA_CORE_CHIPCOMMON && -+ core->id.id != BCMA_CORE_PCIE && -+ core->id.id != BCMA_CORE_80211); -+ -+ switch (clkmode) { -+ case BCMA_CLKMODE_FAST: -+ bcma_set32(core, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT); -+ udelay(64); -+ for (i = 0; i < 1500; i++) { -+ if (bcma_read32(core, BCMA_CLKCTLST) & -+ BCMA_CLKCTLST_HAVEHT) { -+ i = 0; -+ break; -+ } -+ udelay(10); -+ } -+ if (i) -+ pr_err("HT force timeout\n"); -+ break; -+ case BCMA_CLKMODE_DYNAMIC: -+ pr_warn("Dynamic clockmode not supported yet!\n"); -+ break; -+ } -+} -+EXPORT_SYMBOL_GPL(bcma_core_set_clockmode); -+ -+void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on) -+{ -+ u16 i; -+ -+ WARN_ON(req & ~BCMA_CLKCTLST_EXTRESREQ); -+ WARN_ON(status & ~BCMA_CLKCTLST_EXTRESST); -+ -+ if (on) { -+ bcma_set32(core, BCMA_CLKCTLST, req); -+ for (i = 0; i < 10000; i++) { -+ if ((bcma_read32(core, BCMA_CLKCTLST) & status) == -+ status) { -+ i = 0; -+ break; -+ } -+ udelay(10); -+ } -+ if (i) -+ pr_err("PLL enable timeout\n"); -+ } else { -+ pr_warn("Disabling PLL not supported yet!\n"); -+ } -+} -+EXPORT_SYMBOL_GPL(bcma_core_pll_ctl); -+ -+u32 bcma_core_dma_translation(struct bcma_device *core) -+{ -+ switch (core->bus->hosttype) { -+ case BCMA_HOSTTYPE_SOC: -+ return 0; -+ case BCMA_HOSTTYPE_PCI: -+ if (bcma_aread32(core, BCMA_IOST) & BCMA_IOST_DMA64) -+ return BCMA_DMA_TRANSLATION_DMA64_CMT; -+ else -+ return BCMA_DMA_TRANSLATION_DMA32_CMT; -+ default: -+ pr_err("DMA translation unknown for host %d\n", -+ core->bus->hosttype); -+ } -+ return BCMA_DMA_TRANSLATION_NONE; -+} -+EXPORT_SYMBOL(bcma_core_dma_translation); ---- /dev/null -+++ b/drivers/bcma/driver_chipcommon.c -@@ -0,0 +1,156 @@ -+/* -+ * Broadcom specific AMBA -+ * ChipCommon core driver -+ * -+ * Copyright 2005, Broadcom Corporation -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include <linux/bcma/bcma.h> -+ -+static inline u32 bcma_cc_write32_masked(struct bcma_drv_cc *cc, u16 offset, -+ u32 mask, u32 value) -+{ -+ value &= mask; -+ value |= bcma_cc_read32(cc, offset) & ~mask; -+ bcma_cc_write32(cc, offset, value); -+ -+ return value; -+} -+ -+void bcma_core_chipcommon_init(struct bcma_drv_cc *cc) -+{ -+ u32 leddc_on = 10; -+ u32 leddc_off = 90; -+ -+ if (cc->setup_done) -+ return; -+ -+ if (cc->core->id.rev >= 11) -+ cc->status = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT); -+ cc->capabilities = bcma_cc_read32(cc, BCMA_CC_CAP); -+ if (cc->core->id.rev >= 35) -+ cc->capabilities_ext = bcma_cc_read32(cc, BCMA_CC_CAP_EXT); -+ -+ if (cc->core->id.rev >= 20) { -+ bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, 0); -+ bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, 0); -+ } -+ -+ if (cc->capabilities & BCMA_CC_CAP_PMU) -+ bcma_pmu_init(cc); -+ if (cc->capabilities & BCMA_CC_CAP_PCTL) -+ pr_err("Power control not implemented!\n"); -+ -+ if (cc->core->id.rev >= 16) { -+ if (cc->core->bus->sprom.leddc_on_time && -+ cc->core->bus->sprom.leddc_off_time) { -+ leddc_on = cc->core->bus->sprom.leddc_on_time; -+ leddc_off = cc->core->bus->sprom.leddc_off_time; -+ } -+ bcma_cc_write32(cc, BCMA_CC_GPIOTIMER, -+ ((leddc_on << BCMA_CC_GPIOTIMER_ONTIME_SHIFT) | -+ (leddc_off << BCMA_CC_GPIOTIMER_OFFTIME_SHIFT))); -+ } -+ -+ cc->setup_done = true; -+} -+ -+/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */ -+void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks) -+{ -+ /* instant NMI */ -+ bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks); -+} -+ -+void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value) -+{ -+ bcma_cc_write32_masked(cc, BCMA_CC_IRQMASK, mask, value); -+} -+ -+u32 bcma_chipco_irq_status(struct bcma_drv_cc *cc, u32 mask) -+{ -+ return bcma_cc_read32(cc, BCMA_CC_IRQSTAT) & mask; -+} -+ -+u32 bcma_chipco_gpio_in(struct bcma_drv_cc *cc, u32 mask) -+{ -+ return bcma_cc_read32(cc, BCMA_CC_GPIOIN) & mask; -+} -+ -+u32 bcma_chipco_gpio_out(struct bcma_drv_cc *cc, u32 mask, u32 value) -+{ -+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUT, mask, value); -+} -+ -+u32 bcma_chipco_gpio_outen(struct bcma_drv_cc *cc, u32 mask, u32 value) -+{ -+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUTEN, mask, value); -+} -+ -+u32 bcma_chipco_gpio_control(struct bcma_drv_cc *cc, u32 mask, u32 value) -+{ -+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOCTL, mask, value); -+} -+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_control); -+ -+u32 bcma_chipco_gpio_intmask(struct bcma_drv_cc *cc, u32 mask, u32 value) -+{ -+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOIRQ, mask, value); -+} -+ -+u32 bcma_chipco_gpio_polarity(struct bcma_drv_cc *cc, u32 mask, u32 value) -+{ -+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOPOL, mask, value); -+} -+ -+#ifdef CONFIG_BCMA_DRIVER_MIPS -+void bcma_chipco_serial_init(struct bcma_drv_cc *cc) -+{ -+ unsigned int irq; -+ u32 baud_base; -+ u32 i; -+ unsigned int ccrev = cc->core->id.rev; -+ struct bcma_serial_port *ports = cc->serial_ports; -+ -+ if (ccrev >= 11 && ccrev != 15) { -+ /* Fixed ALP clock */ -+ baud_base = bcma_pmu_alp_clock(cc); -+ if (ccrev >= 21) { -+ /* Turn off UART clock before switching clocksource. */ -+ bcma_cc_write32(cc, BCMA_CC_CORECTL, -+ bcma_cc_read32(cc, BCMA_CC_CORECTL) -+ & ~BCMA_CC_CORECTL_UARTCLKEN); -+ } -+ /* Set the override bit so we don't divide it */ -+ bcma_cc_write32(cc, BCMA_CC_CORECTL, -+ bcma_cc_read32(cc, BCMA_CC_CORECTL) -+ | BCMA_CC_CORECTL_UARTCLK0); -+ if (ccrev >= 21) { -+ /* Re-enable the UART clock. */ -+ bcma_cc_write32(cc, BCMA_CC_CORECTL, -+ bcma_cc_read32(cc, BCMA_CC_CORECTL) -+ | BCMA_CC_CORECTL_UARTCLKEN); -+ } -+ } else { -+ pr_err("serial not supported on this device ccrev: 0x%x\n", -+ ccrev); -+ return; -+ } -+ -+ irq = bcma_core_mips_irq(cc->core); -+ -+ /* Determine the registers of the UARTs */ -+ cc->nr_serial_ports = (cc->capabilities & BCMA_CC_CAP_NRUART); -+ for (i = 0; i < cc->nr_serial_ports; i++) { -+ ports[i].regs = cc->core->io_addr + BCMA_CC_UART0_DATA + -+ (i * 256); -+ ports[i].irq = irq; -+ ports[i].baud_base = baud_base; -+ ports[i].reg_shift = 0; -+ } -+} -+#endif /* CONFIG_BCMA_DRIVER_MIPS */ ---- /dev/null -+++ b/drivers/bcma/driver_chipcommon_pmu.c -@@ -0,0 +1,310 @@ -+/* -+ * Broadcom specific AMBA -+ * ChipCommon Power Management Unit driver -+ * -+ * Copyright 2009, Michael Buesch <m@bues.ch> -+ * Copyright 2007, Broadcom Corporation -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include <linux/bcma/bcma.h> -+ -+static u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset) -+{ -+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset); -+ bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR); -+ return bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA); -+} -+ -+void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value) -+{ -+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset); -+ bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR); -+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, value); -+} -+EXPORT_SYMBOL_GPL(bcma_chipco_pll_write); -+ -+void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask, -+ u32 set) -+{ -+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset); -+ bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR); -+ bcma_cc_maskset32(cc, BCMA_CC_PLLCTL_DATA, mask, set); -+} -+EXPORT_SYMBOL_GPL(bcma_chipco_pll_maskset); -+ -+void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc, -+ u32 offset, u32 mask, u32 set) -+{ -+ bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset); -+ bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR); -+ bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL_DATA, mask, set); -+} -+EXPORT_SYMBOL_GPL(bcma_chipco_chipctl_maskset); -+ -+void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask, -+ u32 set) -+{ -+ bcma_cc_write32(cc, BCMA_CC_REGCTL_ADDR, offset); -+ bcma_cc_read32(cc, BCMA_CC_REGCTL_ADDR); -+ bcma_cc_maskset32(cc, BCMA_CC_REGCTL_DATA, mask, set); -+} -+EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset); -+ -+static void bcma_pmu_pll_init(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ -+ switch (bus->chipinfo.id) { -+ case 0x4313: -+ case 0x4331: -+ case 43224: -+ case 43225: -+ break; -+ default: -+ pr_err("PLL init unknown for device 0x%04X\n", -+ bus->chipinfo.id); -+ } -+} -+ -+static void bcma_pmu_resources_init(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ u32 min_msk = 0, max_msk = 0; -+ -+ switch (bus->chipinfo.id) { -+ case 0x4313: -+ min_msk = 0x200D; -+ max_msk = 0xFFFF; -+ break; -+ case 0x4331: -+ case 43224: -+ case 43225: -+ break; -+ default: -+ pr_err("PMU resource config unknown for device 0x%04X\n", -+ bus->chipinfo.id); -+ } -+ -+ /* Set the resource masks. */ -+ if (min_msk) -+ bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk); -+ if (max_msk) -+ bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk); -+} -+ -+void bcma_pmu_swreg_init(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ -+ switch (bus->chipinfo.id) { -+ case 0x4313: -+ case 0x4331: -+ case 43224: -+ case 43225: -+ break; -+ default: -+ pr_err("PMU switch/regulators init unknown for device " -+ "0x%04X\n", bus->chipinfo.id); -+ } -+} -+ -+/* Disable to allow reading SPROM. Don't know the adventages of enabling it. */ -+void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ u32 val; -+ -+ val = bcma_cc_read32(cc, BCMA_CC_CHIPCTL); -+ if (enable) { -+ val |= BCMA_CHIPCTL_4331_EXTPA_EN; -+ if (bus->chipinfo.pkg == 9 || bus->chipinfo.pkg == 11) -+ val |= BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5; -+ } else { -+ val &= ~BCMA_CHIPCTL_4331_EXTPA_EN; -+ val &= ~BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5; -+ } -+ bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val); -+} -+ -+void bcma_pmu_workarounds(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ -+ switch (bus->chipinfo.id) { -+ case 0x4313: -+ bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7); -+ break; -+ case 0x4331: -+ /* BCM4331 workaround is SPROM-related, we put it in sprom.c */ -+ break; -+ case 43224: -+ if (bus->chipinfo.rev == 0) { -+ pr_err("Workarounds for 43224 rev 0 not fully " -+ "implemented\n"); -+ bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x00F000F0); -+ } else { -+ bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0); -+ } -+ break; -+ case 43225: -+ break; -+ default: -+ pr_err("Workarounds unknown for device 0x%04X\n", -+ bus->chipinfo.id); -+ } -+} -+ -+void bcma_pmu_init(struct bcma_drv_cc *cc) -+{ -+ u32 pmucap; -+ -+ pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP); -+ cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION); -+ -+ pr_debug("Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev, -+ pmucap); -+ -+ if (cc->pmu.rev == 1) -+ bcma_cc_mask32(cc, BCMA_CC_PMU_CTL, -+ ~BCMA_CC_PMU_CTL_NOILPONW); -+ else -+ bcma_cc_set32(cc, BCMA_CC_PMU_CTL, -+ BCMA_CC_PMU_CTL_NOILPONW); -+ -+ if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2) -+ pr_err("Fix for 4329b0 bad LPOM state not implemented!\n"); -+ -+ bcma_pmu_pll_init(cc); -+ bcma_pmu_resources_init(cc); -+ bcma_pmu_swreg_init(cc); -+ bcma_pmu_workarounds(cc); -+} -+ -+u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ -+ switch (bus->chipinfo.id) { -+ case 0x4716: -+ case 0x4748: -+ case 47162: -+ case 0x4313: -+ case 0x5357: -+ case 0x4749: -+ case 53572: -+ /* always 20Mhz */ -+ return 20000 * 1000; -+ case 0x5356: -+ case 0x5300: -+ /* always 25Mhz */ -+ return 25000 * 1000; -+ default: -+ pr_warn("No ALP clock specified for %04X device, " -+ "pmu rev. %d, using default %d Hz\n", -+ bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK); -+ } -+ return BCMA_CC_PMU_ALP_CLOCK; -+} -+ -+/* Find the output of the "m" pll divider given pll controls that start with -+ * pllreg "pll0" i.e. 12 for main 6 for phy, 0 for misc. -+ */ -+static u32 bcma_pmu_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m) -+{ -+ u32 tmp, div, ndiv, p1, p2, fc; -+ struct bcma_bus *bus = cc->core->bus; -+ -+ BUG_ON((pll0 & 3) || (pll0 > BCMA_CC_PMU4716_MAINPLL_PLL0)); -+ -+ BUG_ON(!m || m > 4); -+ -+ if (bus->chipinfo.id == 0x5357 || bus->chipinfo.id == 0x4749) { -+ /* Detect failure in clock setting */ -+ tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT); -+ if (tmp & 0x40000) -+ return 133 * 1000000; -+ } -+ -+ tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_P1P2_OFF); -+ p1 = (tmp & BCMA_CC_PPL_P1_MASK) >> BCMA_CC_PPL_P1_SHIFT; -+ p2 = (tmp & BCMA_CC_PPL_P2_MASK) >> BCMA_CC_PPL_P2_SHIFT; -+ -+ tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_M14_OFF); -+ div = (tmp >> ((m - 1) * BCMA_CC_PPL_MDIV_WIDTH)) & -+ BCMA_CC_PPL_MDIV_MASK; -+ -+ tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_NM5_OFF); -+ ndiv = (tmp & BCMA_CC_PPL_NDIV_MASK) >> BCMA_CC_PPL_NDIV_SHIFT; -+ -+ /* Do calculation in Mhz */ -+ fc = bcma_pmu_alp_clock(cc) / 1000000; -+ fc = (p1 * ndiv * fc) / p2; -+ -+ /* Return clock in Hertz */ -+ return (fc / div) * 1000000; -+} -+ -+/* query bus clock frequency for PMU-enabled chipcommon */ -+u32 bcma_pmu_get_clockcontrol(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ -+ switch (bus->chipinfo.id) { -+ case 0x4716: -+ case 0x4748: -+ case 47162: -+ return bcma_pmu_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0, -+ BCMA_CC_PMU5_MAINPLL_SSB); -+ case 0x5356: -+ return bcma_pmu_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0, -+ BCMA_CC_PMU5_MAINPLL_SSB); -+ case 0x5357: -+ case 0x4749: -+ return bcma_pmu_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0, -+ BCMA_CC_PMU5_MAINPLL_SSB); -+ case 0x5300: -+ return bcma_pmu_clock(cc, BCMA_CC_PMU4706_MAINPLL_PLL0, -+ BCMA_CC_PMU5_MAINPLL_SSB); -+ case 53572: -+ return 75000000; -+ default: -+ pr_warn("No backplane clock specified for %04X device, " -+ "pmu rev. %d, using default %d Hz\n", -+ bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK); -+ } -+ return BCMA_CC_PMU_HT_CLOCK; -+} -+ -+/* query cpu clock frequency for PMU-enabled chipcommon */ -+u32 bcma_pmu_get_clockcpu(struct bcma_drv_cc *cc) -+{ -+ struct bcma_bus *bus = cc->core->bus; -+ -+ if (bus->chipinfo.id == 53572) -+ return 300000000; -+ -+ if (cc->pmu.rev >= 5) { -+ u32 pll; -+ switch (bus->chipinfo.id) { -+ case 0x5356: -+ pll = BCMA_CC_PMU5356_MAINPLL_PLL0; -+ break; -+ case 0x5357: -+ case 0x4749: -+ pll = BCMA_CC_PMU5357_MAINPLL_PLL0; -+ break; -+ default: -+ pll = BCMA_CC_PMU4716_MAINPLL_PLL0; -+ break; -+ } -+ -+ /* TODO: if (bus->chipinfo.id == 0x5300) -+ return si_4706_pmu_clock(sih, osh, cc, PMU4706_MAINPLL_PLL0, PMU5_MAINPLL_CPU); */ -+ return bcma_pmu_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU); -+ } -+ -+ return bcma_pmu_get_clockcontrol(cc); -+} ---- /dev/null -+++ b/drivers/bcma/driver_pci.c -@@ -0,0 +1,225 @@ -+/* -+ * Broadcom specific AMBA -+ * PCI Core -+ * -+ * Copyright 2005, 2011, Broadcom Corporation -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> -+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include <linux/bcma/bcma.h> -+ -+/************************************************** -+ * R/W ops. -+ **************************************************/ -+ -+u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address) -+{ -+ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_ADDR, address); -+ pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_ADDR); -+ return pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_DATA); -+} -+ -+#if 0 -+static void bcma_pcie_write(struct bcma_drv_pci *pc, u32 address, u32 data) -+{ -+ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_ADDR, address); -+ pcicore_read32(pc, BCMA_CORE_PCI_PCIEIND_ADDR); -+ pcicore_write32(pc, BCMA_CORE_PCI_PCIEIND_DATA, data); -+} -+#endif -+ -+static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u8 phy) -+{ -+ u32 v; -+ int i; -+ -+ v = BCMA_CORE_PCI_MDIODATA_START; -+ v |= BCMA_CORE_PCI_MDIODATA_WRITE; -+ v |= (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << -+ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); -+ v |= (BCMA_CORE_PCI_MDIODATA_BLK_ADDR << -+ BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); -+ v |= BCMA_CORE_PCI_MDIODATA_TA; -+ v |= (phy << 4); -+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); -+ -+ udelay(10); -+ for (i = 0; i < 200; i++) { -+ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); -+ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) -+ break; -+ msleep(1); -+ } -+} -+ -+static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u8 device, u8 address) -+{ -+ int max_retries = 10; -+ u16 ret = 0; -+ u32 v; -+ int i; -+ -+ /* enable mdio access to SERDES */ -+ v = BCMA_CORE_PCI_MDIOCTL_PREAM_EN; -+ v |= BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL; -+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, v); -+ -+ if (pc->core->id.rev >= 10) { -+ max_retries = 200; -+ bcma_pcie_mdio_set_phy(pc, device); -+ v = (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << -+ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); -+ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); -+ } else { -+ v = (device << BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD); -+ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD); -+ } -+ -+ v = BCMA_CORE_PCI_MDIODATA_START; -+ v |= BCMA_CORE_PCI_MDIODATA_READ; -+ v |= BCMA_CORE_PCI_MDIODATA_TA; -+ -+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); -+ /* Wait for the device to complete the transaction */ -+ udelay(10); -+ for (i = 0; i < max_retries; i++) { -+ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); -+ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) { -+ udelay(10); -+ ret = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_DATA); -+ break; -+ } -+ msleep(1); -+ } -+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0); -+ return ret; -+} -+ -+static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u8 device, -+ u8 address, u16 data) -+{ -+ int max_retries = 10; -+ u32 v; -+ int i; -+ -+ /* enable mdio access to SERDES */ -+ v = BCMA_CORE_PCI_MDIOCTL_PREAM_EN; -+ v |= BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL; -+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, v); -+ -+ if (pc->core->id.rev >= 10) { -+ max_retries = 200; -+ bcma_pcie_mdio_set_phy(pc, device); -+ v = (BCMA_CORE_PCI_MDIODATA_DEV_ADDR << -+ BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF); -+ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF); -+ } else { -+ v = (device << BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD); -+ v |= (address << BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD); -+ } -+ -+ v = BCMA_CORE_PCI_MDIODATA_START; -+ v |= BCMA_CORE_PCI_MDIODATA_WRITE; -+ v |= BCMA_CORE_PCI_MDIODATA_TA; -+ v |= data; -+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_DATA, v); -+ /* Wait for the device to complete the transaction */ -+ udelay(10); -+ for (i = 0; i < max_retries; i++) { -+ v = pcicore_read32(pc, BCMA_CORE_PCI_MDIO_CONTROL); -+ if (v & BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE) -+ break; -+ msleep(1); -+ } -+ pcicore_write32(pc, BCMA_CORE_PCI_MDIO_CONTROL, 0); -+} -+ -+/************************************************** -+ * Workarounds. -+ **************************************************/ -+ -+static u8 bcma_pcicore_polarity_workaround(struct bcma_drv_pci *pc) -+{ -+ u32 tmp; -+ -+ tmp = bcma_pcie_read(pc, BCMA_CORE_PCI_PLP_STATUSREG); -+ if (tmp & BCMA_CORE_PCI_PLP_POLARITYINV_STAT) -+ return BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE | -+ BCMA_CORE_PCI_SERDES_RX_CTRL_POLARITY; -+ else -+ return BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE; -+} -+ -+static void bcma_pcicore_serdes_workaround(struct bcma_drv_pci *pc) -+{ -+ u16 tmp; -+ -+ bcma_pcie_mdio_write(pc, BCMA_CORE_PCI_MDIODATA_DEV_RX, -+ BCMA_CORE_PCI_SERDES_RX_CTRL, -+ bcma_pcicore_polarity_workaround(pc)); -+ tmp = bcma_pcie_mdio_read(pc, BCMA_CORE_PCI_MDIODATA_DEV_PLL, -+ BCMA_CORE_PCI_SERDES_PLL_CTRL); -+ if (tmp & BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN) -+ bcma_pcie_mdio_write(pc, BCMA_CORE_PCI_MDIODATA_DEV_PLL, -+ BCMA_CORE_PCI_SERDES_PLL_CTRL, -+ tmp & ~BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN); -+} -+ -+/************************************************** -+ * Init. -+ **************************************************/ -+ -+static void __devinit bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc) -+{ -+ bcma_pcicore_serdes_workaround(pc); -+} -+ -+void __devinit bcma_core_pci_init(struct bcma_drv_pci *pc) -+{ -+ if (pc->setup_done) -+ return; -+ -+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE -+ pc->hostmode = bcma_core_pci_is_in_hostmode(pc); -+ if (pc->hostmode) -+ bcma_core_pci_hostmode_init(pc); -+#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */ -+ -+ if (!pc->hostmode) -+ bcma_core_pci_clientmode_init(pc); -+} -+ -+int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core, -+ bool enable) -+{ -+ struct pci_dev *pdev = pc->core->bus->host_pci; -+ u32 coremask, tmp; -+ int err = 0; -+ -+ if (core->bus->hosttype != BCMA_HOSTTYPE_PCI) { -+ /* This bcma device is not on a PCI host-bus. So the IRQs are -+ * not routed through the PCI core. -+ * So we must not enable routing through the PCI core. */ -+ goto out; -+ } -+ -+ err = pci_read_config_dword(pdev, BCMA_PCI_IRQMASK, &tmp); -+ if (err) -+ goto out; -+ -+ coremask = BIT(core->core_index) << 8; -+ if (enable) -+ tmp |= coremask; -+ else -+ tmp &= ~coremask; -+ -+ err = pci_write_config_dword(pdev, BCMA_PCI_IRQMASK, tmp); -+ -+out: -+ return err; -+} -+EXPORT_SYMBOL_GPL(bcma_core_pci_irq_ctl); ---- /dev/null -+++ b/drivers/bcma/host_pci.c -@@ -0,0 +1,292 @@ -+/* -+ * Broadcom specific AMBA -+ * PCI Host -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include <linux/slab.h> -+#include <linux/bcma/bcma.h> -+#include <linux/pci.h> -+#include <linux/module.h> -+ -+static void bcma_host_pci_switch_core(struct bcma_device *core) -+{ -+ pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN, -+ core->addr); -+ pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN2, -+ core->wrap); -+ core->bus->mapped_core = core; -+ pr_debug("Switched to core: 0x%X\n", core->id.id); -+} -+ -+/* Provides access to the requested core. Returns base offset that has to be -+ * used. It makes use of fixed windows when possible. */ -+static u16 bcma_host_pci_provide_access_to_core(struct bcma_device *core) -+{ -+ switch (core->id.id) { -+ case BCMA_CORE_CHIPCOMMON: -+ return 3 * BCMA_CORE_SIZE; -+ case BCMA_CORE_PCIE: -+ return 2 * BCMA_CORE_SIZE; -+ } -+ -+ if (core->bus->mapped_core != core) -+ bcma_host_pci_switch_core(core); -+ return 0; -+} -+ -+static u8 bcma_host_pci_read8(struct bcma_device *core, u16 offset) -+{ -+ offset += bcma_host_pci_provide_access_to_core(core); -+ return ioread8(core->bus->mmio + offset); -+} -+ -+static u16 bcma_host_pci_read16(struct bcma_device *core, u16 offset) -+{ -+ offset += bcma_host_pci_provide_access_to_core(core); -+ return ioread16(core->bus->mmio + offset); -+} -+ -+static u32 bcma_host_pci_read32(struct bcma_device *core, u16 offset) -+{ -+ offset += bcma_host_pci_provide_access_to_core(core); -+ return ioread32(core->bus->mmio + offset); -+} -+ -+static void bcma_host_pci_write8(struct bcma_device *core, u16 offset, -+ u8 value) -+{ -+ offset += bcma_host_pci_provide_access_to_core(core); -+ iowrite8(value, core->bus->mmio + offset); -+} -+ -+static void bcma_host_pci_write16(struct bcma_device *core, u16 offset, -+ u16 value) -+{ -+ offset += bcma_host_pci_provide_access_to_core(core); -+ iowrite16(value, core->bus->mmio + offset); -+} -+ -+static void bcma_host_pci_write32(struct bcma_device *core, u16 offset, -+ u32 value) -+{ -+ offset += bcma_host_pci_provide_access_to_core(core); -+ iowrite32(value, core->bus->mmio + offset); -+} -+ -+#ifdef CONFIG_BCMA_BLOCKIO -+void bcma_host_pci_block_read(struct bcma_device *core, void *buffer, -+ size_t count, u16 offset, u8 reg_width) -+{ -+ void __iomem *addr = core->bus->mmio + offset; -+ if (core->bus->mapped_core != core) -+ bcma_host_pci_switch_core(core); -+ switch (reg_width) { -+ case sizeof(u8): -+ ioread8_rep(addr, buffer, count); -+ break; -+ case sizeof(u16): -+ WARN_ON(count & 1); -+ ioread16_rep(addr, buffer, count >> 1); -+ break; -+ case sizeof(u32): -+ WARN_ON(count & 3); -+ ioread32_rep(addr, buffer, count >> 2); -+ break; -+ default: -+ WARN_ON(1); -+ } -+} -+ -+void bcma_host_pci_block_write(struct bcma_device *core, const void *buffer, -+ size_t count, u16 offset, u8 reg_width) -+{ -+ void __iomem *addr = core->bus->mmio + offset; -+ if (core->bus->mapped_core != core) -+ bcma_host_pci_switch_core(core); -+ switch (reg_width) { -+ case sizeof(u8): -+ iowrite8_rep(addr, buffer, count); -+ break; -+ case sizeof(u16): -+ WARN_ON(count & 1); -+ iowrite16_rep(addr, buffer, count >> 1); -+ break; -+ case sizeof(u32): -+ WARN_ON(count & 3); -+ iowrite32_rep(addr, buffer, count >> 2); -+ break; -+ default: -+ WARN_ON(1); -+ } -+} -+#endif -+ -+static u32 bcma_host_pci_aread32(struct bcma_device *core, u16 offset) -+{ -+ if (core->bus->mapped_core != core) -+ bcma_host_pci_switch_core(core); -+ return ioread32(core->bus->mmio + (1 * BCMA_CORE_SIZE) + offset); -+} -+ -+static void bcma_host_pci_awrite32(struct bcma_device *core, u16 offset, -+ u32 value) -+{ -+ if (core->bus->mapped_core != core) -+ bcma_host_pci_switch_core(core); -+ iowrite32(value, core->bus->mmio + (1 * BCMA_CORE_SIZE) + offset); -+} -+ -+const struct bcma_host_ops bcma_host_pci_ops = { -+ .read8 = bcma_host_pci_read8, -+ .read16 = bcma_host_pci_read16, -+ .read32 = bcma_host_pci_read32, -+ .write8 = bcma_host_pci_write8, -+ .write16 = bcma_host_pci_write16, -+ .write32 = bcma_host_pci_write32, -+#ifdef CONFIG_BCMA_BLOCKIO -+ .block_read = bcma_host_pci_block_read, -+ .block_write = bcma_host_pci_block_write, -+#endif -+ .aread32 = bcma_host_pci_aread32, -+ .awrite32 = bcma_host_pci_awrite32, -+}; -+ -+static int __devinit bcma_host_pci_probe(struct pci_dev *dev, -+ const struct pci_device_id *id) -+{ -+ struct bcma_bus *bus; -+ int err = -ENOMEM; -+ const char *name; -+ u32 val; -+ -+ /* Alloc */ -+ bus = kzalloc(sizeof(*bus), GFP_KERNEL); -+ if (!bus) -+ goto out; -+ -+ /* Basic PCI configuration */ -+ err = pci_enable_device(dev); -+ if (err) -+ goto err_kfree_bus; -+ -+ name = dev_name(&dev->dev); -+ if (dev->driver && dev->driver->name) -+ name = dev->driver->name; -+ err = pci_request_regions(dev, name); -+ if (err) -+ goto err_pci_disable; -+ pci_set_master(dev); -+ -+ /* Disable the RETRY_TIMEOUT register (0x41) to keep -+ * PCI Tx retries from interfering with C3 CPU state */ -+ pci_read_config_dword(dev, 0x40, &val); -+ if ((val & 0x0000ff00) != 0) -+ pci_write_config_dword(dev, 0x40, val & 0xffff00ff); -+ -+ /* SSB needed additional powering up, do we have any AMBA PCI cards? */ -+ if (!pci_is_pcie(dev)) -+ pr_err("PCI card detected, report problems.\n"); -+ -+ /* Map MMIO */ -+ err = -ENOMEM; -+ bus->mmio = pci_iomap(dev, 0, ~0UL); -+ if (!bus->mmio) -+ goto err_pci_release_regions; -+ -+ /* Host specific */ -+ bus->host_pci = dev; -+ bus->hosttype = BCMA_HOSTTYPE_PCI; -+ bus->ops = &bcma_host_pci_ops; -+ -+ /* Register */ -+ err = bcma_bus_register(bus); -+ if (err) -+ goto err_pci_unmap_mmio; -+ -+ pci_set_drvdata(dev, bus); -+ -+out: -+ return err; -+ -+err_pci_unmap_mmio: -+ pci_iounmap(dev, bus->mmio); -+err_pci_release_regions: -+ pci_release_regions(dev); -+err_pci_disable: -+ pci_disable_device(dev); -+err_kfree_bus: -+ kfree(bus); -+ return err; -+} -+ -+static void bcma_host_pci_remove(struct pci_dev *dev) -+{ -+ struct bcma_bus *bus = pci_get_drvdata(dev); -+ -+ bcma_bus_unregister(bus); -+ pci_iounmap(dev, bus->mmio); -+ pci_release_regions(dev); -+ pci_disable_device(dev); -+ kfree(bus); -+ pci_set_drvdata(dev, NULL); -+} -+ -+#ifdef CONFIG_PM -+static int bcma_host_pci_suspend(struct device *dev) -+{ -+ struct pci_dev *pdev = to_pci_dev(dev); -+ struct bcma_bus *bus = pci_get_drvdata(pdev); -+ -+ bus->mapped_core = NULL; -+ -+ return bcma_bus_suspend(bus); -+} -+ -+static int bcma_host_pci_resume(struct device *dev) -+{ -+ struct pci_dev *pdev = to_pci_dev(dev); -+ struct bcma_bus *bus = pci_get_drvdata(pdev); -+ -+ return bcma_bus_resume(bus); -+} -+ -+static SIMPLE_DEV_PM_OPS(bcma_pm_ops, bcma_host_pci_suspend, -+ bcma_host_pci_resume); -+#define BCMA_PM_OPS (&bcma_pm_ops) -+ -+#else /* CONFIG_PM */ -+ -+#define BCMA_PM_OPS NULL -+ -+#endif /* CONFIG_PM */ -+ -+static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = { -+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) }, -+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) }, -+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) }, -+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4357) }, -+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) }, -+ { 0, }, -+}; -+MODULE_DEVICE_TABLE(pci, bcma_pci_bridge_tbl); -+ -+static struct pci_driver bcma_pci_bridge_driver = { -+ .name = "bcma-pci-bridge", -+ .id_table = bcma_pci_bridge_tbl, -+ .probe = bcma_host_pci_probe, -+ .remove = bcma_host_pci_remove, -+ .driver.pm = BCMA_PM_OPS, -+}; -+ -+int __init bcma_host_pci_init(void) -+{ -+ return pci_register_driver(&bcma_pci_bridge_driver); -+} -+ -+void __exit bcma_host_pci_exit(void) -+{ -+ pci_unregister_driver(&bcma_pci_bridge_driver); -+} ---- /dev/null -+++ b/drivers/bcma/main.c -@@ -0,0 +1,387 @@ -+/* -+ * Broadcom specific AMBA -+ * Bus subsystem -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include <linux/module.h> -+#include <linux/bcma/bcma.h> -+#include <linux/slab.h> -+ -+MODULE_DESCRIPTION("Broadcom's specific AMBA driver"); -+MODULE_LICENSE("GPL"); -+ -+/* contains the number the next bus should get. */ -+static unsigned int bcma_bus_next_num = 0; -+ -+/* bcma_buses_mutex locks the bcma_bus_next_num */ -+static DEFINE_MUTEX(bcma_buses_mutex); -+ -+static int bcma_bus_match(struct device *dev, struct device_driver *drv); -+static int bcma_device_probe(struct device *dev); -+static int bcma_device_remove(struct device *dev); -+static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env); -+ -+static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, char *buf) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ return sprintf(buf, "0x%03X\n", core->id.manuf); -+} -+static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ return sprintf(buf, "0x%03X\n", core->id.id); -+} -+static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ return sprintf(buf, "0x%02X\n", core->id.rev); -+} -+static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ return sprintf(buf, "0x%X\n", core->id.class); -+} -+static struct device_attribute bcma_device_attrs[] = { -+ __ATTR_RO(manuf), -+ __ATTR_RO(id), -+ __ATTR_RO(rev), -+ __ATTR_RO(class), -+ __ATTR_NULL, -+}; -+ -+static struct bus_type bcma_bus_type = { -+ .name = "bcma", -+ .match = bcma_bus_match, -+ .probe = bcma_device_probe, -+ .remove = bcma_device_remove, -+ .uevent = bcma_device_uevent, -+ .dev_attrs = bcma_device_attrs, -+}; -+ -+struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid) -+{ -+ struct bcma_device *core; -+ -+ list_for_each_entry(core, &bus->cores, list) { -+ if (core->id.id == coreid) -+ return core; -+ } -+ return NULL; -+} -+EXPORT_SYMBOL_GPL(bcma_find_core); -+ -+static void bcma_release_core_dev(struct device *dev) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ if (core->io_addr) -+ iounmap(core->io_addr); -+ if (core->io_wrap) -+ iounmap(core->io_wrap); -+ kfree(core); -+} -+ -+static int bcma_register_cores(struct bcma_bus *bus) -+{ -+ struct bcma_device *core; -+ int err, dev_id = 0; -+ -+ list_for_each_entry(core, &bus->cores, list) { -+ /* We support that cores ourself */ -+ switch (core->id.id) { -+ case BCMA_CORE_CHIPCOMMON: -+ case BCMA_CORE_PCI: -+ case BCMA_CORE_PCIE: -+ case BCMA_CORE_MIPS_74K: -+ continue; -+ } -+ -+ core->dev.release = bcma_release_core_dev; -+ core->dev.bus = &bcma_bus_type; -+ dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id); -+ -+ switch (bus->hosttype) { -+ case BCMA_HOSTTYPE_PCI: -+ core->dev.parent = &bus->host_pci->dev; -+ core->dma_dev = &bus->host_pci->dev; -+ core->irq = bus->host_pci->irq; -+ break; -+ case BCMA_HOSTTYPE_SOC: -+ core->dev.dma_mask = &core->dev.coherent_dma_mask; -+ core->dma_dev = &core->dev; -+ break; -+ case BCMA_HOSTTYPE_SDIO: -+ break; -+ } -+ -+ err = device_register(&core->dev); -+ if (err) { -+ pr_err("Could not register dev for core 0x%03X\n", -+ core->id.id); -+ continue; -+ } -+ core->dev_registered = true; -+ dev_id++; -+ } -+ -+ return 0; -+} -+ -+static void bcma_unregister_cores(struct bcma_bus *bus) -+{ -+ struct bcma_device *core; -+ -+ list_for_each_entry(core, &bus->cores, list) { -+ if (core->dev_registered) -+ device_unregister(&core->dev); -+ } -+} -+ -+int __devinit bcma_bus_register(struct bcma_bus *bus) -+{ -+ int err; -+ struct bcma_device *core; -+ -+ mutex_lock(&bcma_buses_mutex); -+ bus->num = bcma_bus_next_num++; -+ mutex_unlock(&bcma_buses_mutex); -+ -+ /* Scan for devices (cores) */ -+ err = bcma_bus_scan(bus); -+ if (err) { -+ pr_err("Failed to scan: %d\n", err); -+ return -1; -+ } -+ -+ /* Init CC core */ -+ core = bcma_find_core(bus, BCMA_CORE_CHIPCOMMON); -+ if (core) { -+ bus->drv_cc.core = core; -+ bcma_core_chipcommon_init(&bus->drv_cc); -+ } -+ -+ /* Init MIPS core */ -+ core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); -+ if (core) { -+ bus->drv_mips.core = core; -+ bcma_core_mips_init(&bus->drv_mips); -+ } -+ -+ /* Init PCIE core */ -+ core = bcma_find_core(bus, BCMA_CORE_PCIE); -+ if (core) { -+ bus->drv_pci.core = core; -+ bcma_core_pci_init(&bus->drv_pci); -+ } -+ -+ /* Try to get SPROM */ -+ err = bcma_sprom_get(bus); -+ if (err == -ENOENT) { -+ pr_err("No SPROM available\n"); -+ } else if (err) -+ pr_err("Failed to get SPROM: %d\n", err); -+ -+ /* Register found cores */ -+ bcma_register_cores(bus); -+ -+ pr_info("Bus registered\n"); -+ -+ return 0; -+} -+ -+void bcma_bus_unregister(struct bcma_bus *bus) -+{ -+ bcma_unregister_cores(bus); -+} -+ -+int __init bcma_bus_early_register(struct bcma_bus *bus, -+ struct bcma_device *core_cc, -+ struct bcma_device *core_mips) -+{ -+ int err; -+ struct bcma_device *core; -+ struct bcma_device_id match; -+ -+ bcma_init_bus(bus); -+ -+ match.manuf = BCMA_MANUF_BCM; -+ match.id = BCMA_CORE_CHIPCOMMON; -+ match.class = BCMA_CL_SIM; -+ match.rev = BCMA_ANY_REV; -+ -+ /* Scan for chip common core */ -+ err = bcma_bus_scan_early(bus, &match, core_cc); -+ if (err) { -+ pr_err("Failed to scan for common core: %d\n", err); -+ return -1; -+ } -+ -+ match.manuf = BCMA_MANUF_MIPS; -+ match.id = BCMA_CORE_MIPS_74K; -+ match.class = BCMA_CL_SIM; -+ match.rev = BCMA_ANY_REV; -+ -+ /* Scan for mips core */ -+ err = bcma_bus_scan_early(bus, &match, core_mips); -+ if (err) { -+ pr_err("Failed to scan for mips core: %d\n", err); -+ return -1; -+ } -+ -+ /* Init CC core */ -+ core = bcma_find_core(bus, BCMA_CORE_CHIPCOMMON); -+ if (core) { -+ bus->drv_cc.core = core; -+ bcma_core_chipcommon_init(&bus->drv_cc); -+ } -+ -+ /* Init MIPS core */ -+ core = bcma_find_core(bus, BCMA_CORE_MIPS_74K); -+ if (core) { -+ bus->drv_mips.core = core; -+ bcma_core_mips_init(&bus->drv_mips); -+ } -+ -+ pr_info("Early bus registered\n"); -+ -+ return 0; -+} -+ -+#ifdef CONFIG_PM -+int bcma_bus_suspend(struct bcma_bus *bus) -+{ -+ struct bcma_device *core; -+ -+ list_for_each_entry(core, &bus->cores, list) { -+ struct device_driver *drv = core->dev.driver; -+ if (drv) { -+ struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); -+ if (adrv->suspend) -+ adrv->suspend(core); -+ } -+ } -+ return 0; -+} -+ -+int bcma_bus_resume(struct bcma_bus *bus) -+{ -+ struct bcma_device *core; -+ -+ /* Init CC core */ -+ core = bcma_find_core(bus, BCMA_CORE_CHIPCOMMON); -+ if (core) { -+ bus->drv_cc.setup_done = false; -+ bcma_core_chipcommon_init(&bus->drv_cc); -+ } -+ -+ list_for_each_entry(core, &bus->cores, list) { -+ struct device_driver *drv = core->dev.driver; -+ if (drv) { -+ struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); -+ if (adrv->resume) -+ adrv->resume(core); -+ } -+ } -+ -+ return 0; -+} -+#endif -+ -+int __bcma_driver_register(struct bcma_driver *drv, struct module *owner) -+{ -+ drv->drv.name = drv->name; -+ drv->drv.bus = &bcma_bus_type; -+ drv->drv.owner = owner; -+ -+ return driver_register(&drv->drv); -+} -+EXPORT_SYMBOL_GPL(__bcma_driver_register); -+ -+void bcma_driver_unregister(struct bcma_driver *drv) -+{ -+ driver_unregister(&drv->drv); -+} -+EXPORT_SYMBOL_GPL(bcma_driver_unregister); -+ -+static int bcma_bus_match(struct device *dev, struct device_driver *drv) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv); -+ const struct bcma_device_id *cid = &core->id; -+ const struct bcma_device_id *did; -+ -+ for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) { -+ if ((did->manuf == cid->manuf || did->manuf == BCMA_ANY_MANUF) && -+ (did->id == cid->id || did->id == BCMA_ANY_ID) && -+ (did->rev == cid->rev || did->rev == BCMA_ANY_REV) && -+ (did->class == cid->class || did->class == BCMA_ANY_CLASS)) -+ return 1; -+ } -+ return 0; -+} -+ -+static int bcma_device_probe(struct device *dev) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver, -+ drv); -+ int err = 0; -+ -+ if (adrv->probe) -+ err = adrv->probe(core); -+ -+ return err; -+} -+ -+static int bcma_device_remove(struct device *dev) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver, -+ drv); -+ -+ if (adrv->remove) -+ adrv->remove(core); -+ -+ return 0; -+} -+ -+static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env) -+{ -+ struct bcma_device *core = container_of(dev, struct bcma_device, dev); -+ -+ return add_uevent_var(env, -+ "MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X", -+ core->id.manuf, core->id.id, -+ core->id.rev, core->id.class); -+} -+ -+static int __init bcma_modinit(void) -+{ -+ int err; -+ -+ err = bus_register(&bcma_bus_type); -+ if (err) -+ return err; -+ -+#ifdef CONFIG_BCMA_HOST_PCI -+ err = bcma_host_pci_init(); -+ if (err) { -+ pr_err("PCI host initialization failed\n"); -+ err = 0; -+ } -+#endif -+ -+ return err; -+} -+fs_initcall(bcma_modinit); -+ -+static void __exit bcma_modexit(void) -+{ -+#ifdef CONFIG_BCMA_HOST_PCI -+ bcma_host_pci_exit(); -+#endif -+ bus_unregister(&bcma_bus_type); -+} -+module_exit(bcma_modexit) ---- /dev/null -+++ b/drivers/bcma/scan.c -@@ -0,0 +1,507 @@ -+/* -+ * Broadcom specific AMBA -+ * Bus scanning -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "scan.h" -+#include "bcma_private.h" -+ -+#include <linux/bcma/bcma.h> -+#include <linux/bcma/bcma_regs.h> -+#include <linux/pci.h> -+#include <linux/io.h> -+#include <linux/dma-mapping.h> -+#include <linux/slab.h> -+ -+struct bcma_device_id_name { -+ u16 id; -+ const char *name; -+}; -+struct bcma_device_id_name bcma_device_names[] = { -+ { BCMA_CORE_OOB_ROUTER, "OOB Router" }, -+ { BCMA_CORE_INVALID, "Invalid" }, -+ { BCMA_CORE_CHIPCOMMON, "ChipCommon" }, -+ { BCMA_CORE_ILINE20, "ILine 20" }, -+ { BCMA_CORE_SRAM, "SRAM" }, -+ { BCMA_CORE_SDRAM, "SDRAM" }, -+ { BCMA_CORE_PCI, "PCI" }, -+ { BCMA_CORE_MIPS, "MIPS" }, -+ { BCMA_CORE_ETHERNET, "Fast Ethernet" }, -+ { BCMA_CORE_V90, "V90" }, -+ { BCMA_CORE_USB11_HOSTDEV, "USB 1.1 Hostdev" }, -+ { BCMA_CORE_ADSL, "ADSL" }, -+ { BCMA_CORE_ILINE100, "ILine 100" }, -+ { BCMA_CORE_IPSEC, "IPSEC" }, -+ { BCMA_CORE_UTOPIA, "UTOPIA" }, -+ { BCMA_CORE_PCMCIA, "PCMCIA" }, -+ { BCMA_CORE_INTERNAL_MEM, "Internal Memory" }, -+ { BCMA_CORE_MEMC_SDRAM, "MEMC SDRAM" }, -+ { BCMA_CORE_OFDM, "OFDM" }, -+ { BCMA_CORE_EXTIF, "EXTIF" }, -+ { BCMA_CORE_80211, "IEEE 802.11" }, -+ { BCMA_CORE_PHY_A, "PHY A" }, -+ { BCMA_CORE_PHY_B, "PHY B" }, -+ { BCMA_CORE_PHY_G, "PHY G" }, -+ { BCMA_CORE_MIPS_3302, "MIPS 3302" }, -+ { BCMA_CORE_USB11_HOST, "USB 1.1 Host" }, -+ { BCMA_CORE_USB11_DEV, "USB 1.1 Device" }, -+ { BCMA_CORE_USB20_HOST, "USB 2.0 Host" }, -+ { BCMA_CORE_USB20_DEV, "USB 2.0 Device" }, -+ { BCMA_CORE_SDIO_HOST, "SDIO Host" }, -+ { BCMA_CORE_ROBOSWITCH, "Roboswitch" }, -+ { BCMA_CORE_PARA_ATA, "PATA" }, -+ { BCMA_CORE_SATA_XORDMA, "SATA XOR-DMA" }, -+ { BCMA_CORE_ETHERNET_GBIT, "GBit Ethernet" }, -+ { BCMA_CORE_PCIE, "PCIe" }, -+ { BCMA_CORE_PHY_N, "PHY N" }, -+ { BCMA_CORE_SRAM_CTL, "SRAM Controller" }, -+ { BCMA_CORE_MINI_MACPHY, "Mini MACPHY" }, -+ { BCMA_CORE_ARM_1176, "ARM 1176" }, -+ { BCMA_CORE_ARM_7TDMI, "ARM 7TDMI" }, -+ { BCMA_CORE_PHY_LP, "PHY LP" }, -+ { BCMA_CORE_PMU, "PMU" }, -+ { BCMA_CORE_PHY_SSN, "PHY SSN" }, -+ { BCMA_CORE_SDIO_DEV, "SDIO Device" }, -+ { BCMA_CORE_ARM_CM3, "ARM CM3" }, -+ { BCMA_CORE_PHY_HT, "PHY HT" }, -+ { BCMA_CORE_MIPS_74K, "MIPS 74K" }, -+ { BCMA_CORE_MAC_GBIT, "GBit MAC" }, -+ { BCMA_CORE_DDR12_MEM_CTL, "DDR1/DDR2 Memory Controller" }, -+ { BCMA_CORE_PCIE_RC, "PCIe Root Complex" }, -+ { BCMA_CORE_OCP_OCP_BRIDGE, "OCP to OCP Bridge" }, -+ { BCMA_CORE_SHARED_COMMON, "Common Shared" }, -+ { BCMA_CORE_OCP_AHB_BRIDGE, "OCP to AHB Bridge" }, -+ { BCMA_CORE_SPI_HOST, "SPI Host" }, -+ { BCMA_CORE_I2S, "I2S" }, -+ { BCMA_CORE_SDR_DDR1_MEM_CTL, "SDR/DDR1 Memory Controller" }, -+ { BCMA_CORE_SHIM, "SHIM" }, -+ { BCMA_CORE_DEFAULT, "Default" }, -+}; -+const char *bcma_device_name(struct bcma_device_id *id) -+{ -+ int i; -+ -+ if (id->manuf == BCMA_MANUF_BCM) { -+ for (i = 0; i < ARRAY_SIZE(bcma_device_names); i++) { -+ if (bcma_device_names[i].id == id->id) -+ return bcma_device_names[i].name; -+ } -+ } -+ return "UNKNOWN"; -+} -+ -+static u32 bcma_scan_read32(struct bcma_bus *bus, u8 current_coreidx, -+ u16 offset) -+{ -+ return readl(bus->mmio + offset); -+} -+ -+static void bcma_scan_switch_core(struct bcma_bus *bus, u32 addr) -+{ -+ if (bus->hosttype == BCMA_HOSTTYPE_PCI) -+ pci_write_config_dword(bus->host_pci, BCMA_PCI_BAR0_WIN, -+ addr); -+} -+ -+static u32 bcma_erom_get_ent(struct bcma_bus *bus, u32 **eromptr) -+{ -+ u32 ent = readl(*eromptr); -+ (*eromptr)++; -+ return ent; -+} -+ -+static void bcma_erom_push_ent(u32 **eromptr) -+{ -+ (*eromptr)--; -+} -+ -+static s32 bcma_erom_get_ci(struct bcma_bus *bus, u32 **eromptr) -+{ -+ u32 ent = bcma_erom_get_ent(bus, eromptr); -+ if (!(ent & SCAN_ER_VALID)) -+ return -ENOENT; -+ if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_CI) -+ return -ENOENT; -+ return ent; -+} -+ -+static bool bcma_erom_is_end(struct bcma_bus *bus, u32 **eromptr) -+{ -+ u32 ent = bcma_erom_get_ent(bus, eromptr); -+ bcma_erom_push_ent(eromptr); -+ return (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID)); -+} -+ -+static bool bcma_erom_is_bridge(struct bcma_bus *bus, u32 **eromptr) -+{ -+ u32 ent = bcma_erom_get_ent(bus, eromptr); -+ bcma_erom_push_ent(eromptr); -+ return (((ent & SCAN_ER_VALID)) && -+ ((ent & SCAN_ER_TAGX) == SCAN_ER_TAG_ADDR) && -+ ((ent & SCAN_ADDR_TYPE) == SCAN_ADDR_TYPE_BRIDGE)); -+} -+ -+static void bcma_erom_skip_component(struct bcma_bus *bus, u32 **eromptr) -+{ -+ u32 ent; -+ while (1) { -+ ent = bcma_erom_get_ent(bus, eromptr); -+ if ((ent & SCAN_ER_VALID) && -+ ((ent & SCAN_ER_TAG) == SCAN_ER_TAG_CI)) -+ break; -+ if (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID)) -+ break; -+ } -+ bcma_erom_push_ent(eromptr); -+} -+ -+static s32 bcma_erom_get_mst_port(struct bcma_bus *bus, u32 **eromptr) -+{ -+ u32 ent = bcma_erom_get_ent(bus, eromptr); -+ if (!(ent & SCAN_ER_VALID)) -+ return -ENOENT; -+ if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_MP) -+ return -ENOENT; -+ return ent; -+} -+ -+static s32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 **eromptr, -+ u32 type, u8 port) -+{ -+ u32 addrl, addrh, sizel, sizeh = 0; -+ u32 size; -+ -+ u32 ent = bcma_erom_get_ent(bus, eromptr); -+ if ((!(ent & SCAN_ER_VALID)) || -+ ((ent & SCAN_ER_TAGX) != SCAN_ER_TAG_ADDR) || -+ ((ent & SCAN_ADDR_TYPE) != type) || -+ (((ent & SCAN_ADDR_PORT) >> SCAN_ADDR_PORT_SHIFT) != port)) { -+ bcma_erom_push_ent(eromptr); -+ return -EINVAL; -+ } -+ -+ addrl = ent & SCAN_ADDR_ADDR; -+ if (ent & SCAN_ADDR_AG32) -+ addrh = bcma_erom_get_ent(bus, eromptr); -+ else -+ addrh = 0; -+ -+ if ((ent & SCAN_ADDR_SZ) == SCAN_ADDR_SZ_SZD) { -+ size = bcma_erom_get_ent(bus, eromptr); -+ sizel = size & SCAN_SIZE_SZ; -+ if (size & SCAN_SIZE_SG32) -+ sizeh = bcma_erom_get_ent(bus, eromptr); -+ } else -+ sizel = SCAN_ADDR_SZ_BASE << -+ ((ent & SCAN_ADDR_SZ) >> SCAN_ADDR_SZ_SHIFT); -+ -+ return addrl; -+} -+ -+static struct bcma_device *bcma_find_core_by_index(struct bcma_bus *bus, -+ u16 index) -+{ -+ struct bcma_device *core; -+ -+ list_for_each_entry(core, &bus->cores, list) { -+ if (core->core_index == index) -+ return core; -+ } -+ return NULL; -+} -+ -+static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid) -+{ -+ struct bcma_device *core; -+ -+ list_for_each_entry_reverse(core, &bus->cores, list) { -+ if (core->id.id == coreid) -+ return core; -+ } -+ return NULL; -+} -+ -+static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr, -+ struct bcma_device_id *match, int core_num, -+ struct bcma_device *core) -+{ -+ s32 tmp; -+ u8 i, j; -+ s32 cia, cib; -+ u8 ports[2], wrappers[2]; -+ -+ /* get CIs */ -+ cia = bcma_erom_get_ci(bus, eromptr); -+ if (cia < 0) { -+ bcma_erom_push_ent(eromptr); -+ if (bcma_erom_is_end(bus, eromptr)) -+ return -ESPIPE; -+ return -EILSEQ; -+ } -+ cib = bcma_erom_get_ci(bus, eromptr); -+ if (cib < 0) -+ return -EILSEQ; -+ -+ /* parse CIs */ -+ core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT; -+ core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT; -+ core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT; -+ ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT; -+ ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT; -+ wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT; -+ wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT; -+ core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT; -+ -+ if (((core->id.manuf == BCMA_MANUF_ARM) && -+ (core->id.id == 0xFFF)) || -+ (ports[1] == 0)) { -+ bcma_erom_skip_component(bus, eromptr); -+ return -ENXIO; -+ } -+ -+ /* check if component is a core at all */ -+ if (wrappers[0] + wrappers[1] == 0) { -+ /* we could save addrl of the router -+ if (cid == BCMA_CORE_OOB_ROUTER) -+ */ -+ bcma_erom_skip_component(bus, eromptr); -+ return -ENXIO; -+ } -+ -+ if (bcma_erom_is_bridge(bus, eromptr)) { -+ bcma_erom_skip_component(bus, eromptr); -+ return -ENXIO; -+ } -+ -+ if (bcma_find_core_by_index(bus, core_num)) { -+ bcma_erom_skip_component(bus, eromptr); -+ return -ENODEV; -+ } -+ -+ if (match && ((match->manuf != BCMA_ANY_MANUF && -+ match->manuf != core->id.manuf) || -+ (match->id != BCMA_ANY_ID && match->id != core->id.id) || -+ (match->rev != BCMA_ANY_REV && match->rev != core->id.rev) || -+ (match->class != BCMA_ANY_CLASS && match->class != core->id.class) -+ )) { -+ bcma_erom_skip_component(bus, eromptr); -+ return -ENODEV; -+ } -+ -+ /* get & parse master ports */ -+ for (i = 0; i < ports[0]; i++) { -+ s32 mst_port_d = bcma_erom_get_mst_port(bus, eromptr); -+ if (mst_port_d < 0) -+ return -EILSEQ; -+ } -+ -+ /* get & parse slave ports */ -+ for (i = 0; i < ports[1]; i++) { -+ for (j = 0; ; j++) { -+ tmp = bcma_erom_get_addr_desc(bus, eromptr, -+ SCAN_ADDR_TYPE_SLAVE, i); -+ if (tmp < 0) { -+ /* no more entries for port _i_ */ -+ /* pr_debug("erom: slave port %d " -+ * "has %d descriptors\n", i, j); */ -+ break; -+ } else { -+ if (i == 0 && j == 0) -+ core->addr = tmp; -+ } -+ } -+ } -+ -+ /* get & parse master wrappers */ -+ for (i = 0; i < wrappers[0]; i++) { -+ for (j = 0; ; j++) { -+ tmp = bcma_erom_get_addr_desc(bus, eromptr, -+ SCAN_ADDR_TYPE_MWRAP, i); -+ if (tmp < 0) { -+ /* no more entries for port _i_ */ -+ /* pr_debug("erom: master wrapper %d " -+ * "has %d descriptors\n", i, j); */ -+ break; -+ } else { -+ if (i == 0 && j == 0) -+ core->wrap = tmp; -+ } -+ } -+ } -+ -+ /* get & parse slave wrappers */ -+ for (i = 0; i < wrappers[1]; i++) { -+ u8 hack = (ports[1] == 1) ? 0 : 1; -+ for (j = 0; ; j++) { -+ tmp = bcma_erom_get_addr_desc(bus, eromptr, -+ SCAN_ADDR_TYPE_SWRAP, i + hack); -+ if (tmp < 0) { -+ /* no more entries for port _i_ */ -+ /* pr_debug("erom: master wrapper %d " -+ * has %d descriptors\n", i, j); */ -+ break; -+ } else { -+ if (wrappers[0] == 0 && !i && !j) -+ core->wrap = tmp; -+ } -+ } -+ } -+ if (bus->hosttype == BCMA_HOSTTYPE_SOC) { -+ core->io_addr = ioremap_nocache(core->addr, BCMA_CORE_SIZE); -+ if (!core->io_addr) -+ return -ENOMEM; -+ core->io_wrap = ioremap_nocache(core->wrap, BCMA_CORE_SIZE); -+ if (!core->io_wrap) { -+ iounmap(core->io_addr); -+ return -ENOMEM; -+ } -+ } -+ return 0; -+} -+ -+void bcma_init_bus(struct bcma_bus *bus) -+{ -+ s32 tmp; -+ struct bcma_chipinfo *chipinfo = &(bus->chipinfo); -+ -+ if (bus->init_done) -+ return; -+ -+ INIT_LIST_HEAD(&bus->cores); -+ bus->nr_cores = 0; -+ -+ bcma_scan_switch_core(bus, BCMA_ADDR_BASE); -+ -+ tmp = bcma_scan_read32(bus, 0, BCMA_CC_ID); -+ chipinfo->id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT; -+ chipinfo->rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT; -+ chipinfo->pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT; -+ pr_info("Found chip with id 0x%04X, rev 0x%02X and package 0x%02X\n", -+ chipinfo->id, chipinfo->rev, chipinfo->pkg); -+ -+ bus->init_done = true; -+} -+ -+int bcma_bus_scan(struct bcma_bus *bus) -+{ -+ u32 erombase; -+ u32 __iomem *eromptr, *eromend; -+ -+ int err, core_num = 0; -+ -+ bcma_init_bus(bus); -+ -+ erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM); -+ if (bus->hosttype == BCMA_HOSTTYPE_SOC) { -+ eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE); -+ if (!eromptr) -+ return -ENOMEM; -+ } else { -+ eromptr = bus->mmio; -+ } -+ -+ eromend = eromptr + BCMA_CORE_SIZE / sizeof(u32); -+ -+ bcma_scan_switch_core(bus, erombase); -+ -+ while (eromptr < eromend) { -+ struct bcma_device *other_core; -+ struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL); -+ if (!core) -+ return -ENOMEM; -+ INIT_LIST_HEAD(&core->list); -+ core->bus = bus; -+ -+ err = bcma_get_next_core(bus, &eromptr, NULL, core_num, core); -+ if (err < 0) { -+ kfree(core); -+ if (err == -ENODEV) { -+ core_num++; -+ continue; -+ } else if (err == -ENXIO) { -+ continue; -+ } else if (err == -ESPIPE) { -+ break; -+ } -+ return err; -+ } -+ -+ core->core_index = core_num++; -+ bus->nr_cores++; -+ other_core = bcma_find_core_reverse(bus, core->id.id); -+ core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1; -+ -+ pr_info("Core %d found: %s " -+ "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", -+ core->core_index, bcma_device_name(&core->id), -+ core->id.manuf, core->id.id, core->id.rev, -+ core->id.class); -+ -+ list_add(&core->list, &bus->cores); -+ } -+ -+ if (bus->hosttype == BCMA_HOSTTYPE_SOC) -+ iounmap(eromptr); -+ -+ return 0; -+} -+ -+int __init bcma_bus_scan_early(struct bcma_bus *bus, -+ struct bcma_device_id *match, -+ struct bcma_device *core) -+{ -+ u32 erombase; -+ u32 __iomem *eromptr, *eromend; -+ -+ int err = -ENODEV; -+ int core_num = 0; -+ -+ erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM); -+ if (bus->hosttype == BCMA_HOSTTYPE_SOC) { -+ eromptr = ioremap_nocache(erombase, BCMA_CORE_SIZE); -+ if (!eromptr) -+ return -ENOMEM; -+ } else { -+ eromptr = bus->mmio; -+ } -+ -+ eromend = eromptr + BCMA_CORE_SIZE / sizeof(u32); -+ -+ bcma_scan_switch_core(bus, erombase); -+ -+ while (eromptr < eromend) { -+ memset(core, 0, sizeof(*core)); -+ INIT_LIST_HEAD(&core->list); -+ core->bus = bus; -+ -+ err = bcma_get_next_core(bus, &eromptr, match, core_num, core); -+ if (err == -ENODEV) { -+ core_num++; -+ continue; -+ } else if (err == -ENXIO) -+ continue; -+ else if (err == -ESPIPE) -+ break; -+ else if (err < 0) -+ return err; -+ -+ core->core_index = core_num++; -+ bus->nr_cores++; -+ pr_info("Core %d found: %s " -+ "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n", -+ core->core_index, bcma_device_name(&core->id), -+ core->id.manuf, core->id.id, core->id.rev, -+ core->id.class); -+ -+ list_add(&core->list, &bus->cores); -+ err = 0; -+ break; -+ } -+ -+ if (bus->hosttype == BCMA_HOSTTYPE_SOC) -+ iounmap(eromptr); -+ -+ return err; -+} ---- /dev/null -+++ b/drivers/bcma/scan.h -@@ -0,0 +1,56 @@ -+#ifndef BCMA_SCAN_H_ -+#define BCMA_SCAN_H_ -+ -+#define BCMA_ADDR_BASE 0x18000000 -+#define BCMA_WRAP_BASE 0x18100000 -+ -+#define SCAN_ER_VALID 0x00000001 -+#define SCAN_ER_TAGX 0x00000006 /* we have to ignore 0x8 bit when checking tag for SCAN_ER_TAG_ADDR */ -+#define SCAN_ER_TAG 0x0000000E -+#define SCAN_ER_TAG_CI 0x00000000 -+#define SCAN_ER_TAG_MP 0x00000002 -+#define SCAN_ER_TAG_ADDR 0x00000004 -+#define SCAN_ER_TAG_END 0x0000000E -+#define SCAN_ER_BAD 0xFFFFFFFF -+ -+#define SCAN_CIA_CLASS 0x000000F0 -+#define SCAN_CIA_CLASS_SHIFT 4 -+#define SCAN_CIA_ID 0x000FFF00 -+#define SCAN_CIA_ID_SHIFT 8 -+#define SCAN_CIA_MANUF 0xFFF00000 -+#define SCAN_CIA_MANUF_SHIFT 20 -+ -+#define SCAN_CIB_NMP 0x000001F0 -+#define SCAN_CIB_NMP_SHIFT 4 -+#define SCAN_CIB_NSP 0x00003E00 -+#define SCAN_CIB_NSP_SHIFT 9 -+#define SCAN_CIB_NMW 0x0007C000 -+#define SCAN_CIB_NMW_SHIFT 14 -+#define SCAN_CIB_NSW 0x00F80000 -+#define SCAN_CIB_NSW_SHIFT 17 -+#define SCAN_CIB_REV 0xFF000000 -+#define SCAN_CIB_REV_SHIFT 24 -+ -+#define SCAN_ADDR_AG32 0x00000008 -+#define SCAN_ADDR_SZ 0x00000030 -+#define SCAN_ADDR_SZ_SHIFT 4 -+#define SCAN_ADDR_SZ_4K 0x00000000 -+#define SCAN_ADDR_SZ_8K 0x00000010 -+#define SCAN_ADDR_SZ_16K 0x00000020 -+#define SCAN_ADDR_SZ_SZD 0x00000030 -+#define SCAN_ADDR_TYPE 0x000000C0 -+#define SCAN_ADDR_TYPE_SLAVE 0x00000000 -+#define SCAN_ADDR_TYPE_BRIDGE 0x00000040 -+#define SCAN_ADDR_TYPE_SWRAP 0x00000080 -+#define SCAN_ADDR_TYPE_MWRAP 0x000000C0 -+#define SCAN_ADDR_PORT 0x00000F00 -+#define SCAN_ADDR_PORT_SHIFT 8 -+#define SCAN_ADDR_ADDR 0xFFFFF000 -+ -+#define SCAN_ADDR_SZ_BASE 0x00001000 /* 4KB */ -+ -+#define SCAN_SIZE_SZ_ALIGN 0x00000FFF -+#define SCAN_SIZE_SZ 0xFFFFF000 -+#define SCAN_SIZE_SG32 0x00000008 -+ -+#endif /* BCMA_SCAN_H_ */ ---- /dev/null -+++ b/include/linux/bcma/bcma.h -@@ -0,0 +1,307 @@ -+#ifndef LINUX_BCMA_H_ -+#define LINUX_BCMA_H_ -+ -+#include <linux/pci.h> -+#include <linux/mod_devicetable.h> -+ -+#include <linux/bcma/bcma_driver_chipcommon.h> -+#include <linux/bcma/bcma_driver_pci.h> -+#include <linux/bcma/bcma_driver_mips.h> -+#include <linux/ssb/ssb.h> /* SPROM sharing */ -+ -+#include "bcma_regs.h" -+ -+struct bcma_device; -+struct bcma_bus; -+ -+enum bcma_hosttype { -+ BCMA_HOSTTYPE_PCI, -+ BCMA_HOSTTYPE_SDIO, -+ BCMA_HOSTTYPE_SOC, -+}; -+ -+struct bcma_chipinfo { -+ u16 id; -+ u8 rev; -+ u8 pkg; -+}; -+ -+enum bcma_clkmode { -+ BCMA_CLKMODE_FAST, -+ BCMA_CLKMODE_DYNAMIC, -+}; -+ -+struct bcma_host_ops { -+ u8 (*read8)(struct bcma_device *core, u16 offset); -+ u16 (*read16)(struct bcma_device *core, u16 offset); -+ u32 (*read32)(struct bcma_device *core, u16 offset); -+ void (*write8)(struct bcma_device *core, u16 offset, u8 value); -+ void (*write16)(struct bcma_device *core, u16 offset, u16 value); -+ void (*write32)(struct bcma_device *core, u16 offset, u32 value); -+#ifdef CONFIG_BCMA_BLOCKIO -+ void (*block_read)(struct bcma_device *core, void *buffer, -+ size_t count, u16 offset, u8 reg_width); -+ void (*block_write)(struct bcma_device *core, const void *buffer, -+ size_t count, u16 offset, u8 reg_width); -+#endif -+ /* Agent ops */ -+ u32 (*aread32)(struct bcma_device *core, u16 offset); -+ void (*awrite32)(struct bcma_device *core, u16 offset, u32 value); -+}; -+ -+/* Core manufacturers */ -+#define BCMA_MANUF_ARM 0x43B -+#define BCMA_MANUF_MIPS 0x4A7 -+#define BCMA_MANUF_BCM 0x4BF -+ -+/* Core class values. */ -+#define BCMA_CL_SIM 0x0 -+#define BCMA_CL_EROM 0x1 -+#define BCMA_CL_CORESIGHT 0x9 -+#define BCMA_CL_VERIF 0xB -+#define BCMA_CL_OPTIMO 0xD -+#define BCMA_CL_GEN 0xE -+#define BCMA_CL_PRIMECELL 0xF -+ -+/* Core-ID values. */ -+#define BCMA_CORE_OOB_ROUTER 0x367 /* Out of band */ -+#define BCMA_CORE_INVALID 0x700 -+#define BCMA_CORE_CHIPCOMMON 0x800 -+#define BCMA_CORE_ILINE20 0x801 -+#define BCMA_CORE_SRAM 0x802 -+#define BCMA_CORE_SDRAM 0x803 -+#define BCMA_CORE_PCI 0x804 -+#define BCMA_CORE_MIPS 0x805 -+#define BCMA_CORE_ETHERNET 0x806 -+#define BCMA_CORE_V90 0x807 -+#define BCMA_CORE_USB11_HOSTDEV 0x808 -+#define BCMA_CORE_ADSL 0x809 -+#define BCMA_CORE_ILINE100 0x80A -+#define BCMA_CORE_IPSEC 0x80B -+#define BCMA_CORE_UTOPIA 0x80C -+#define BCMA_CORE_PCMCIA 0x80D -+#define BCMA_CORE_INTERNAL_MEM 0x80E -+#define BCMA_CORE_MEMC_SDRAM 0x80F -+#define BCMA_CORE_OFDM 0x810 -+#define BCMA_CORE_EXTIF 0x811 -+#define BCMA_CORE_80211 0x812 -+#define BCMA_CORE_PHY_A 0x813 -+#define BCMA_CORE_PHY_B 0x814 -+#define BCMA_CORE_PHY_G 0x815 -+#define BCMA_CORE_MIPS_3302 0x816 -+#define BCMA_CORE_USB11_HOST 0x817 -+#define BCMA_CORE_USB11_DEV 0x818 -+#define BCMA_CORE_USB20_HOST 0x819 -+#define BCMA_CORE_USB20_DEV 0x81A -+#define BCMA_CORE_SDIO_HOST 0x81B -+#define BCMA_CORE_ROBOSWITCH 0x81C -+#define BCMA_CORE_PARA_ATA 0x81D -+#define BCMA_CORE_SATA_XORDMA 0x81E -+#define BCMA_CORE_ETHERNET_GBIT 0x81F -+#define BCMA_CORE_PCIE 0x820 -+#define BCMA_CORE_PHY_N 0x821 -+#define BCMA_CORE_SRAM_CTL 0x822 -+#define BCMA_CORE_MINI_MACPHY 0x823 -+#define BCMA_CORE_ARM_1176 0x824 -+#define BCMA_CORE_ARM_7TDMI 0x825 -+#define BCMA_CORE_PHY_LP 0x826 -+#define BCMA_CORE_PMU 0x827 -+#define BCMA_CORE_PHY_SSN 0x828 -+#define BCMA_CORE_SDIO_DEV 0x829 -+#define BCMA_CORE_ARM_CM3 0x82A -+#define BCMA_CORE_PHY_HT 0x82B -+#define BCMA_CORE_MIPS_74K 0x82C -+#define BCMA_CORE_MAC_GBIT 0x82D -+#define BCMA_CORE_DDR12_MEM_CTL 0x82E -+#define BCMA_CORE_PCIE_RC 0x82F /* PCIe Root Complex */ -+#define BCMA_CORE_OCP_OCP_BRIDGE 0x830 -+#define BCMA_CORE_SHARED_COMMON 0x831 -+#define BCMA_CORE_OCP_AHB_BRIDGE 0x832 -+#define BCMA_CORE_SPI_HOST 0x833 -+#define BCMA_CORE_I2S 0x834 -+#define BCMA_CORE_SDR_DDR1_MEM_CTL 0x835 /* SDR/DDR1 memory controller core */ -+#define BCMA_CORE_SHIM 0x837 /* SHIM component in ubus/6362 */ -+#define BCMA_CORE_DEFAULT 0xFFF -+ -+#define BCMA_MAX_NR_CORES 16 -+ -+struct bcma_device { -+ struct bcma_bus *bus; -+ struct bcma_device_id id; -+ -+ struct device dev; -+ struct device *dma_dev; -+ -+ unsigned int irq; -+ bool dev_registered; -+ -+ u8 core_index; -+ u8 core_unit; -+ -+ u32 addr; -+ u32 wrap; -+ -+ void __iomem *io_addr; -+ void __iomem *io_wrap; -+ -+ void *drvdata; -+ struct list_head list; -+}; -+ -+static inline void *bcma_get_drvdata(struct bcma_device *core) -+{ -+ return core->drvdata; -+} -+static inline void bcma_set_drvdata(struct bcma_device *core, void *drvdata) -+{ -+ core->drvdata = drvdata; -+} -+ -+struct bcma_driver { -+ const char *name; -+ const struct bcma_device_id *id_table; -+ -+ int (*probe)(struct bcma_device *dev); -+ void (*remove)(struct bcma_device *dev); -+ int (*suspend)(struct bcma_device *dev); -+ int (*resume)(struct bcma_device *dev); -+ void (*shutdown)(struct bcma_device *dev); -+ -+ struct device_driver drv; -+}; -+extern -+int __bcma_driver_register(struct bcma_driver *drv, struct module *owner); -+#define bcma_driver_register(drv) \ -+ __bcma_driver_register(drv, THIS_MODULE) -+ -+extern void bcma_driver_unregister(struct bcma_driver *drv); -+ -+/* Set a fallback SPROM. -+ * See kdoc at the function definition for complete documentation. */ -+extern int bcma_arch_register_fallback_sprom( -+ int (*sprom_callback)(struct bcma_bus *bus, -+ struct ssb_sprom *out)); -+ -+struct bcma_bus { -+ /* The MMIO area. */ -+ void __iomem *mmio; -+ -+ const struct bcma_host_ops *ops; -+ -+ enum bcma_hosttype hosttype; -+ union { -+ /* Pointer to the PCI bus (only for BCMA_HOSTTYPE_PCI) */ -+ struct pci_dev *host_pci; -+ /* Pointer to the SDIO device (only for BCMA_HOSTTYPE_SDIO) */ -+ struct sdio_func *host_sdio; -+ }; -+ -+ struct bcma_chipinfo chipinfo; -+ -+ struct bcma_device *mapped_core; -+ struct list_head cores; -+ u8 nr_cores; -+ u8 init_done:1; -+ u8 num; -+ -+ struct bcma_drv_cc drv_cc; -+ struct bcma_drv_pci drv_pci; -+ struct bcma_drv_mips drv_mips; -+ -+ /* We decided to share SPROM struct with SSB as long as we do not need -+ * any hacks for BCMA. This simplifies drivers code. */ -+ struct ssb_sprom sprom; -+}; -+ -+static inline u32 bcma_read8(struct bcma_device *core, u16 offset) -+{ -+ return core->bus->ops->read8(core, offset); -+} -+static inline u32 bcma_read16(struct bcma_device *core, u16 offset) -+{ -+ return core->bus->ops->read16(core, offset); -+} -+static inline u32 bcma_read32(struct bcma_device *core, u16 offset) -+{ -+ return core->bus->ops->read32(core, offset); -+} -+static inline -+void bcma_write8(struct bcma_device *core, u16 offset, u32 value) -+{ -+ core->bus->ops->write8(core, offset, value); -+} -+static inline -+void bcma_write16(struct bcma_device *core, u16 offset, u32 value) -+{ -+ core->bus->ops->write16(core, offset, value); -+} -+static inline -+void bcma_write32(struct bcma_device *core, u16 offset, u32 value) -+{ -+ core->bus->ops->write32(core, offset, value); -+} -+#ifdef CONFIG_BCMA_BLOCKIO -+static inline void bcma_block_read(struct bcma_device *core, void *buffer, -+ size_t count, u16 offset, u8 reg_width) -+{ -+ core->bus->ops->block_read(core, buffer, count, offset, reg_width); -+} -+static inline void bcma_block_write(struct bcma_device *core, -+ const void *buffer, size_t count, -+ u16 offset, u8 reg_width) -+{ -+ core->bus->ops->block_write(core, buffer, count, offset, reg_width); -+} -+#endif -+static inline u32 bcma_aread32(struct bcma_device *core, u16 offset) -+{ -+ return core->bus->ops->aread32(core, offset); -+} -+static inline -+void bcma_awrite32(struct bcma_device *core, u16 offset, u32 value) -+{ -+ core->bus->ops->awrite32(core, offset, value); -+} -+ -+static inline void bcma_mask32(struct bcma_device *cc, u16 offset, u32 mask) -+{ -+ bcma_write32(cc, offset, bcma_read32(cc, offset) & mask); -+} -+static inline void bcma_set32(struct bcma_device *cc, u16 offset, u32 set) -+{ -+ bcma_write32(cc, offset, bcma_read32(cc, offset) | set); -+} -+static inline void bcma_maskset32(struct bcma_device *cc, -+ u16 offset, u32 mask, u32 set) -+{ -+ bcma_write32(cc, offset, (bcma_read32(cc, offset) & mask) | set); -+} -+static inline void bcma_mask16(struct bcma_device *cc, u16 offset, u16 mask) -+{ -+ bcma_write16(cc, offset, bcma_read16(cc, offset) & mask); -+} -+static inline void bcma_set16(struct bcma_device *cc, u16 offset, u16 set) -+{ -+ bcma_write16(cc, offset, bcma_read16(cc, offset) | set); -+} -+static inline void bcma_maskset16(struct bcma_device *cc, -+ u16 offset, u16 mask, u16 set) -+{ -+ bcma_write16(cc, offset, (bcma_read16(cc, offset) & mask) | set); -+} -+ -+extern struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid); -+extern bool bcma_core_is_enabled(struct bcma_device *core); -+extern void bcma_core_disable(struct bcma_device *core, u32 flags); -+extern int bcma_core_enable(struct bcma_device *core, u32 flags); -+extern void bcma_core_set_clockmode(struct bcma_device *core, -+ enum bcma_clkmode clkmode); -+extern void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, -+ bool on); -+#define BCMA_DMA_TRANSLATION_MASK 0xC0000000 -+#define BCMA_DMA_TRANSLATION_NONE 0x00000000 -+#define BCMA_DMA_TRANSLATION_DMA32_CMT 0x40000000 /* Client Mode Translation for 32-bit DMA */ -+#define BCMA_DMA_TRANSLATION_DMA64_CMT 0x80000000 /* Client Mode Translation for 64-bit DMA */ -+extern u32 bcma_core_dma_translation(struct bcma_device *core); -+ -+#endif /* LINUX_BCMA_H_ */ ---- /dev/null -+++ b/include/linux/bcma/bcma_driver_chipcommon.h -@@ -0,0 +1,415 @@ -+#ifndef LINUX_BCMA_DRIVER_CC_H_ -+#define LINUX_BCMA_DRIVER_CC_H_ -+ -+/** ChipCommon core registers. **/ -+#define BCMA_CC_ID 0x0000 -+#define BCMA_CC_ID_ID 0x0000FFFF -+#define BCMA_CC_ID_ID_SHIFT 0 -+#define BCMA_CC_ID_REV 0x000F0000 -+#define BCMA_CC_ID_REV_SHIFT 16 -+#define BCMA_CC_ID_PKG 0x00F00000 -+#define BCMA_CC_ID_PKG_SHIFT 20 -+#define BCMA_CC_ID_NRCORES 0x0F000000 -+#define BCMA_CC_ID_NRCORES_SHIFT 24 -+#define BCMA_CC_ID_TYPE 0xF0000000 -+#define BCMA_CC_ID_TYPE_SHIFT 28 -+#define BCMA_CC_CAP 0x0004 /* Capabilities */ -+#define BCMA_CC_CAP_NRUART 0x00000003 /* # of UARTs */ -+#define BCMA_CC_CAP_MIPSEB 0x00000004 /* MIPS in BigEndian Mode */ -+#define BCMA_CC_CAP_UARTCLK 0x00000018 /* UART clock select */ -+#define BCMA_CC_CAP_UARTCLK_INT 0x00000008 /* UARTs are driven by internal divided clock */ -+#define BCMA_CC_CAP_UARTGPIO 0x00000020 /* UARTs on GPIO 15-12 */ -+#define BCMA_CC_CAP_EXTBUS 0x000000C0 /* External buses present */ -+#define BCMA_CC_CAP_FLASHT 0x00000700 /* Flash Type */ -+#define BCMA_CC_FLASHT_NONE 0x00000000 /* No flash */ -+#define BCMA_CC_FLASHT_STSER 0x00000100 /* ST serial flash */ -+#define BCMA_CC_FLASHT_ATSER 0x00000200 /* Atmel serial flash */ -+#define BCMA_CC_FLASHT_NFLASH 0x00000200 -+#define BCMA_CC_FLASHT_PARA 0x00000700 /* Parallel flash */ -+#define BCMA_CC_CAP_PLLT 0x00038000 /* PLL Type */ -+#define BCMA_PLLTYPE_NONE 0x00000000 -+#define BCMA_PLLTYPE_1 0x00010000 /* 48Mhz base, 3 dividers */ -+#define BCMA_PLLTYPE_2 0x00020000 /* 48Mhz, 4 dividers */ -+#define BCMA_PLLTYPE_3 0x00030000 /* 25Mhz, 2 dividers */ -+#define BCMA_PLLTYPE_4 0x00008000 /* 48Mhz, 4 dividers */ -+#define BCMA_PLLTYPE_5 0x00018000 /* 25Mhz, 4 dividers */ -+#define BCMA_PLLTYPE_6 0x00028000 /* 100/200 or 120/240 only */ -+#define BCMA_PLLTYPE_7 0x00038000 /* 25Mhz, 4 dividers */ -+#define BCMA_CC_CAP_PCTL 0x00040000 /* Power Control */ -+#define BCMA_CC_CAP_OTPS 0x00380000 /* OTP size */ -+#define BCMA_CC_CAP_OTPS_SHIFT 19 -+#define BCMA_CC_CAP_OTPS_BASE 5 -+#define BCMA_CC_CAP_JTAGM 0x00400000 /* JTAG master present */ -+#define BCMA_CC_CAP_BROM 0x00800000 /* Internal boot ROM active */ -+#define BCMA_CC_CAP_64BIT 0x08000000 /* 64-bit Backplane */ -+#define BCMA_CC_CAP_PMU 0x10000000 /* PMU available (rev >= 20) */ -+#define BCMA_CC_CAP_ECI 0x20000000 /* ECI available (rev >= 20) */ -+#define BCMA_CC_CAP_SPROM 0x40000000 /* SPROM present */ -+#define BCMA_CC_CORECTL 0x0008 -+#define BCMA_CC_CORECTL_UARTCLK0 0x00000001 /* Drive UART with internal clock */ -+#define BCMA_CC_CORECTL_SE 0x00000002 /* sync clk out enable (corerev >= 3) */ -+#define BCMA_CC_CORECTL_UARTCLKEN 0x00000008 /* UART clock enable (rev >= 21) */ -+#define BCMA_CC_BIST 0x000C -+#define BCMA_CC_OTPS 0x0010 /* OTP status */ -+#define BCMA_CC_OTPS_PROGFAIL 0x80000000 -+#define BCMA_CC_OTPS_PROTECT 0x00000007 -+#define BCMA_CC_OTPS_HW_PROTECT 0x00000001 -+#define BCMA_CC_OTPS_SW_PROTECT 0x00000002 -+#define BCMA_CC_OTPS_CID_PROTECT 0x00000004 -+#define BCMA_CC_OTPS_GU_PROG_IND 0x00000F00 /* General Use programmed indication */ -+#define BCMA_CC_OTPS_GU_PROG_IND_SHIFT 8 -+#define BCMA_CC_OTPS_GU_PROG_HW 0x00000100 /* HW region programmed */ -+#define BCMA_CC_OTPC 0x0014 /* OTP control */ -+#define BCMA_CC_OTPC_RECWAIT 0xFF000000 -+#define BCMA_CC_OTPC_PROGWAIT 0x00FFFF00 -+#define BCMA_CC_OTPC_PRW_SHIFT 8 -+#define BCMA_CC_OTPC_MAXFAIL 0x00000038 -+#define BCMA_CC_OTPC_VSEL 0x00000006 -+#define BCMA_CC_OTPC_SELVL 0x00000001 -+#define BCMA_CC_OTPP 0x0018 /* OTP prog */ -+#define BCMA_CC_OTPP_COL 0x000000FF -+#define BCMA_CC_OTPP_ROW 0x0000FF00 -+#define BCMA_CC_OTPP_ROW_SHIFT 8 -+#define BCMA_CC_OTPP_READERR 0x10000000 -+#define BCMA_CC_OTPP_VALUE 0x20000000 -+#define BCMA_CC_OTPP_READ 0x40000000 -+#define BCMA_CC_OTPP_START 0x80000000 -+#define BCMA_CC_OTPP_BUSY 0x80000000 -+#define BCMA_CC_OTPL 0x001C /* OTP layout */ -+#define BCMA_CC_OTPL_GURGN_OFFSET 0x00000FFF /* offset of general use region */ -+#define BCMA_CC_IRQSTAT 0x0020 -+#define BCMA_CC_IRQMASK 0x0024 -+#define BCMA_CC_IRQ_GPIO 0x00000001 /* gpio intr */ -+#define BCMA_CC_IRQ_EXT 0x00000002 /* ro: ext intr pin (corerev >= 3) */ -+#define BCMA_CC_IRQ_WDRESET 0x80000000 /* watchdog reset occurred */ -+#define BCMA_CC_CHIPCTL 0x0028 /* Rev >= 11 only */ -+#define BCMA_CC_CHIPSTAT 0x002C /* Rev >= 11 only */ -+#define BCMA_CC_CHIPST_4313_SPROM_PRESENT 1 -+#define BCMA_CC_CHIPST_4313_OTP_PRESENT 2 -+#define BCMA_CC_CHIPST_4331_SPROM_PRESENT 2 -+#define BCMA_CC_CHIPST_4331_OTP_PRESENT 4 -+#define BCMA_CC_JCMD 0x0030 /* Rev >= 10 only */ -+#define BCMA_CC_JCMD_START 0x80000000 -+#define BCMA_CC_JCMD_BUSY 0x80000000 -+#define BCMA_CC_JCMD_PAUSE 0x40000000 -+#define BCMA_CC_JCMD0_ACC_MASK 0x0000F000 -+#define BCMA_CC_JCMD0_ACC_IRDR 0x00000000 -+#define BCMA_CC_JCMD0_ACC_DR 0x00001000 -+#define BCMA_CC_JCMD0_ACC_IR 0x00002000 -+#define BCMA_CC_JCMD0_ACC_RESET 0x00003000 -+#define BCMA_CC_JCMD0_ACC_IRPDR 0x00004000 -+#define BCMA_CC_JCMD0_ACC_PDR 0x00005000 -+#define BCMA_CC_JCMD0_IRW_MASK 0x00000F00 -+#define BCMA_CC_JCMD_ACC_MASK 0x000F0000 /* Changes for corerev 11 */ -+#define BCMA_CC_JCMD_ACC_IRDR 0x00000000 -+#define BCMA_CC_JCMD_ACC_DR 0x00010000 -+#define BCMA_CC_JCMD_ACC_IR 0x00020000 -+#define BCMA_CC_JCMD_ACC_RESET 0x00030000 -+#define BCMA_CC_JCMD_ACC_IRPDR 0x00040000 -+#define BCMA_CC_JCMD_ACC_PDR 0x00050000 -+#define BCMA_CC_JCMD_IRW_MASK 0x00001F00 -+#define BCMA_CC_JCMD_IRW_SHIFT 8 -+#define BCMA_CC_JCMD_DRW_MASK 0x0000003F -+#define BCMA_CC_JIR 0x0034 /* Rev >= 10 only */ -+#define BCMA_CC_JDR 0x0038 /* Rev >= 10 only */ -+#define BCMA_CC_JCTL 0x003C /* Rev >= 10 only */ -+#define BCMA_CC_JCTL_FORCE_CLK 4 /* Force clock */ -+#define BCMA_CC_JCTL_EXT_EN 2 /* Enable external targets */ -+#define BCMA_CC_JCTL_EN 1 /* Enable Jtag master */ -+#define BCMA_CC_FLASHCTL 0x0040 -+#define BCMA_CC_FLASHCTL_START 0x80000000 -+#define BCMA_CC_FLASHCTL_BUSY BCMA_CC_FLASHCTL_START -+#define BCMA_CC_FLASHADDR 0x0044 -+#define BCMA_CC_FLASHDATA 0x0048 -+#define BCMA_CC_BCAST_ADDR 0x0050 -+#define BCMA_CC_BCAST_DATA 0x0054 -+#define BCMA_CC_GPIOPULLUP 0x0058 /* Rev >= 20 only */ -+#define BCMA_CC_GPIOPULLDOWN 0x005C /* Rev >= 20 only */ -+#define BCMA_CC_GPIOIN 0x0060 -+#define BCMA_CC_GPIOOUT 0x0064 -+#define BCMA_CC_GPIOOUTEN 0x0068 -+#define BCMA_CC_GPIOCTL 0x006C -+#define BCMA_CC_GPIOPOL 0x0070 -+#define BCMA_CC_GPIOIRQ 0x0074 -+#define BCMA_CC_WATCHDOG 0x0080 -+#define BCMA_CC_GPIOTIMER 0x0088 /* LED powersave (corerev >= 16) */ -+#define BCMA_CC_GPIOTIMER_OFFTIME 0x0000FFFF -+#define BCMA_CC_GPIOTIMER_OFFTIME_SHIFT 0 -+#define BCMA_CC_GPIOTIMER_ONTIME 0xFFFF0000 -+#define BCMA_CC_GPIOTIMER_ONTIME_SHIFT 16 -+#define BCMA_CC_GPIOTOUTM 0x008C /* LED powersave (corerev >= 16) */ -+#define BCMA_CC_CLOCK_N 0x0090 -+#define BCMA_CC_CLOCK_SB 0x0094 -+#define BCMA_CC_CLOCK_PCI 0x0098 -+#define BCMA_CC_CLOCK_M2 0x009C -+#define BCMA_CC_CLOCK_MIPS 0x00A0 -+#define BCMA_CC_CLKDIV 0x00A4 /* Rev >= 3 only */ -+#define BCMA_CC_CLKDIV_SFLASH 0x0F000000 -+#define BCMA_CC_CLKDIV_SFLASH_SHIFT 24 -+#define BCMA_CC_CLKDIV_OTP 0x000F0000 -+#define BCMA_CC_CLKDIV_OTP_SHIFT 16 -+#define BCMA_CC_CLKDIV_JTAG 0x00000F00 -+#define BCMA_CC_CLKDIV_JTAG_SHIFT 8 -+#define BCMA_CC_CLKDIV_UART 0x000000FF -+#define BCMA_CC_CAP_EXT 0x00AC /* Capabilities */ -+#define BCMA_CC_PLLONDELAY 0x00B0 /* Rev >= 4 only */ -+#define BCMA_CC_FREFSELDELAY 0x00B4 /* Rev >= 4 only */ -+#define BCMA_CC_SLOWCLKCTL 0x00B8 /* 6 <= Rev <= 9 only */ -+#define BCMA_CC_SLOWCLKCTL_SRC 0x00000007 /* slow clock source mask */ -+#define BCMA_CC_SLOWCLKCTL_SRC_LPO 0x00000000 /* source of slow clock is LPO */ -+#define BCMA_CC_SLOWCLKCTL_SRC_XTAL 0x00000001 /* source of slow clock is crystal */ -+#define BCMA_CC_SLOECLKCTL_SRC_PCI 0x00000002 /* source of slow clock is PCI */ -+#define BCMA_CC_SLOWCLKCTL_LPOFREQ 0x00000200 /* LPOFreqSel, 1: 160Khz, 0: 32KHz */ -+#define BCMA_CC_SLOWCLKCTL_LPOPD 0x00000400 /* LPOPowerDown, 1: LPO is disabled, 0: LPO is enabled */ -+#define BCMA_CC_SLOWCLKCTL_FSLOW 0x00000800 /* ForceSlowClk, 1: sb/cores running on slow clock, 0: power logic control */ -+#define BCMA_CC_SLOWCLKCTL_IPLL 0x00001000 /* IgnorePllOffReq, 1/0: power logic ignores/honors PLL clock disable requests from core */ -+#define BCMA_CC_SLOWCLKCTL_ENXTAL 0x00002000 /* XtalControlEn, 1/0: power logic does/doesn't disable crystal when appropriate */ -+#define BCMA_CC_SLOWCLKCTL_XTALPU 0x00004000 /* XtalPU (RO), 1/0: crystal running/disabled */ -+#define BCMA_CC_SLOWCLKCTL_CLKDIV 0xFFFF0000 /* ClockDivider (SlowClk = 1/(4+divisor)) */ -+#define BCMA_CC_SLOWCLKCTL_CLKDIV_SHIFT 16 -+#define BCMA_CC_SYSCLKCTL 0x00C0 /* Rev >= 3 only */ -+#define BCMA_CC_SYSCLKCTL_IDLPEN 0x00000001 /* ILPen: Enable Idle Low Power */ -+#define BCMA_CC_SYSCLKCTL_ALPEN 0x00000002 /* ALPen: Enable Active Low Power */ -+#define BCMA_CC_SYSCLKCTL_PLLEN 0x00000004 /* ForcePLLOn */ -+#define BCMA_CC_SYSCLKCTL_FORCEALP 0x00000008 /* Force ALP (or HT if ALPen is not set */ -+#define BCMA_CC_SYSCLKCTL_FORCEHT 0x00000010 /* Force HT */ -+#define BCMA_CC_SYSCLKCTL_CLKDIV 0xFFFF0000 /* ClkDiv (ILP = 1/(4+divisor)) */ -+#define BCMA_CC_SYSCLKCTL_CLKDIV_SHIFT 16 -+#define BCMA_CC_CLKSTSTR 0x00C4 /* Rev >= 3 only */ -+#define BCMA_CC_EROM 0x00FC -+#define BCMA_CC_PCMCIA_CFG 0x0100 -+#define BCMA_CC_PCMCIA_MEMWAIT 0x0104 -+#define BCMA_CC_PCMCIA_ATTRWAIT 0x0108 -+#define BCMA_CC_PCMCIA_IOWAIT 0x010C -+#define BCMA_CC_IDE_CFG 0x0110 -+#define BCMA_CC_IDE_MEMWAIT 0x0114 -+#define BCMA_CC_IDE_ATTRWAIT 0x0118 -+#define BCMA_CC_IDE_IOWAIT 0x011C -+#define BCMA_CC_PROG_CFG 0x0120 -+#define BCMA_CC_PROG_WAITCNT 0x0124 -+#define BCMA_CC_FLASH_CFG 0x0128 -+#define BCMA_CC_FLASH_CFG_DS 0x0010 /* Data size, 0=8bit, 1=16bit */ -+#define BCMA_CC_FLASH_WAITCNT 0x012C -+#define BCMA_CC_SROM_CONTROL 0x0190 -+#define BCMA_CC_SROM_CONTROL_START 0x80000000 -+#define BCMA_CC_SROM_CONTROL_BUSY 0x80000000 -+#define BCMA_CC_SROM_CONTROL_OPCODE 0x60000000 -+#define BCMA_CC_SROM_CONTROL_OP_READ 0x00000000 -+#define BCMA_CC_SROM_CONTROL_OP_WRITE 0x20000000 -+#define BCMA_CC_SROM_CONTROL_OP_WRDIS 0x40000000 -+#define BCMA_CC_SROM_CONTROL_OP_WREN 0x60000000 -+#define BCMA_CC_SROM_CONTROL_OTPSEL 0x00000010 -+#define BCMA_CC_SROM_CONTROL_LOCK 0x00000008 -+#define BCMA_CC_SROM_CONTROL_SIZE_MASK 0x00000006 -+#define BCMA_CC_SROM_CONTROL_SIZE_1K 0x00000000 -+#define BCMA_CC_SROM_CONTROL_SIZE_4K 0x00000002 -+#define BCMA_CC_SROM_CONTROL_SIZE_16K 0x00000004 -+#define BCMA_CC_SROM_CONTROL_SIZE_SHIFT 1 -+#define BCMA_CC_SROM_CONTROL_PRESENT 0x00000001 -+/* 0x1E0 is defined as shared BCMA_CLKCTLST */ -+#define BCMA_CC_HW_WORKAROUND 0x01E4 /* Hardware workaround (rev >= 20) */ -+#define BCMA_CC_UART0_DATA 0x0300 -+#define BCMA_CC_UART0_IMR 0x0304 -+#define BCMA_CC_UART0_FCR 0x0308 -+#define BCMA_CC_UART0_LCR 0x030C -+#define BCMA_CC_UART0_MCR 0x0310 -+#define BCMA_CC_UART0_LSR 0x0314 -+#define BCMA_CC_UART0_MSR 0x0318 -+#define BCMA_CC_UART0_SCRATCH 0x031C -+#define BCMA_CC_UART1_DATA 0x0400 -+#define BCMA_CC_UART1_IMR 0x0404 -+#define BCMA_CC_UART1_FCR 0x0408 -+#define BCMA_CC_UART1_LCR 0x040C -+#define BCMA_CC_UART1_MCR 0x0410 -+#define BCMA_CC_UART1_LSR 0x0414 -+#define BCMA_CC_UART1_MSR 0x0418 -+#define BCMA_CC_UART1_SCRATCH 0x041C -+/* PMU registers (rev >= 20) */ -+#define BCMA_CC_PMU_CTL 0x0600 /* PMU control */ -+#define BCMA_CC_PMU_CTL_ILP_DIV 0xFFFF0000 /* ILP div mask */ -+#define BCMA_CC_PMU_CTL_ILP_DIV_SHIFT 16 -+#define BCMA_CC_PMU_CTL_PLL_UPD 0x00000400 -+#define BCMA_CC_PMU_CTL_NOILPONW 0x00000200 /* No ILP on wait */ -+#define BCMA_CC_PMU_CTL_HTREQEN 0x00000100 /* HT req enable */ -+#define BCMA_CC_PMU_CTL_ALPREQEN 0x00000080 /* ALP req enable */ -+#define BCMA_CC_PMU_CTL_XTALFREQ 0x0000007C /* Crystal freq */ -+#define BCMA_CC_PMU_CTL_XTALFREQ_SHIFT 2 -+#define BCMA_CC_PMU_CTL_ILPDIVEN 0x00000002 /* ILP div enable */ -+#define BCMA_CC_PMU_CTL_LPOSEL 0x00000001 /* LPO sel */ -+#define BCMA_CC_PMU_CAP 0x0604 /* PMU capabilities */ -+#define BCMA_CC_PMU_CAP_REVISION 0x000000FF /* Revision mask */ -+#define BCMA_CC_PMU_STAT 0x0608 /* PMU status */ -+#define BCMA_CC_PMU_STAT_INTPEND 0x00000040 /* Interrupt pending */ -+#define BCMA_CC_PMU_STAT_SBCLKST 0x00000030 /* Backplane clock status? */ -+#define BCMA_CC_PMU_STAT_HAVEALP 0x00000008 /* ALP available */ -+#define BCMA_CC_PMU_STAT_HAVEHT 0x00000004 /* HT available */ -+#define BCMA_CC_PMU_STAT_RESINIT 0x00000003 /* Res init */ -+#define BCMA_CC_PMU_RES_STAT 0x060C /* PMU res status */ -+#define BCMA_CC_PMU_RES_PEND 0x0610 /* PMU res pending */ -+#define BCMA_CC_PMU_TIMER 0x0614 /* PMU timer */ -+#define BCMA_CC_PMU_MINRES_MSK 0x0618 /* PMU min res mask */ -+#define BCMA_CC_PMU_MAXRES_MSK 0x061C /* PMU max res mask */ -+#define BCMA_CC_PMU_RES_TABSEL 0x0620 /* PMU res table sel */ -+#define BCMA_CC_PMU_RES_DEPMSK 0x0624 /* PMU res dep mask */ -+#define BCMA_CC_PMU_RES_UPDNTM 0x0628 /* PMU res updown timer */ -+#define BCMA_CC_PMU_RES_TIMER 0x062C /* PMU res timer */ -+#define BCMA_CC_PMU_CLKSTRETCH 0x0630 /* PMU clockstretch */ -+#define BCMA_CC_PMU_WATCHDOG 0x0634 /* PMU watchdog */ -+#define BCMA_CC_PMU_RES_REQTS 0x0640 /* PMU res req timer sel */ -+#define BCMA_CC_PMU_RES_REQT 0x0644 /* PMU res req timer */ -+#define BCMA_CC_PMU_RES_REQM 0x0648 /* PMU res req mask */ -+#define BCMA_CC_CHIPCTL_ADDR 0x0650 -+#define BCMA_CC_CHIPCTL_DATA 0x0654 -+#define BCMA_CC_REGCTL_ADDR 0x0658 -+#define BCMA_CC_REGCTL_DATA 0x065C -+#define BCMA_CC_PLLCTL_ADDR 0x0660 -+#define BCMA_CC_PLLCTL_DATA 0x0664 -+#define BCMA_CC_SPROM 0x0800 /* SPROM beginning */ -+ -+/* Divider allocation in 4716/47162/5356 */ -+#define BCMA_CC_PMU5_MAINPLL_CPU 1 -+#define BCMA_CC_PMU5_MAINPLL_MEM 2 -+#define BCMA_CC_PMU5_MAINPLL_SSB 3 -+ -+/* PLL usage in 4716/47162 */ -+#define BCMA_CC_PMU4716_MAINPLL_PLL0 12 -+ -+/* PLL usage in 5356/5357 */ -+#define BCMA_CC_PMU5356_MAINPLL_PLL0 0 -+#define BCMA_CC_PMU5357_MAINPLL_PLL0 0 -+ -+/* 4706 PMU */ -+#define BCMA_CC_PMU4706_MAINPLL_PLL0 0 -+ -+/* ALP clock on pre-PMU chips */ -+#define BCMA_CC_PMU_ALP_CLOCK 20000000 -+/* HT clock for systems with PMU-enabled chipcommon */ -+#define BCMA_CC_PMU_HT_CLOCK 80000000 -+ -+/* PMU rev 5 (& 6) */ -+#define BCMA_CC_PPL_P1P2_OFF 0 -+#define BCMA_CC_PPL_P1_MASK 0x0f000000 -+#define BCMA_CC_PPL_P1_SHIFT 24 -+#define BCMA_CC_PPL_P2_MASK 0x00f00000 -+#define BCMA_CC_PPL_P2_SHIFT 20 -+#define BCMA_CC_PPL_M14_OFF 1 -+#define BCMA_CC_PPL_MDIV_MASK 0x000000ff -+#define BCMA_CC_PPL_MDIV_WIDTH 8 -+#define BCMA_CC_PPL_NM5_OFF 2 -+#define BCMA_CC_PPL_NDIV_MASK 0xfff00000 -+#define BCMA_CC_PPL_NDIV_SHIFT 20 -+#define BCMA_CC_PPL_FMAB_OFF 3 -+#define BCMA_CC_PPL_MRAT_MASK 0xf0000000 -+#define BCMA_CC_PPL_MRAT_SHIFT 28 -+#define BCMA_CC_PPL_ABRAT_MASK 0x08000000 -+#define BCMA_CC_PPL_ABRAT_SHIFT 27 -+#define BCMA_CC_PPL_FDIV_MASK 0x07ffffff -+#define BCMA_CC_PPL_PLLCTL_OFF 4 -+#define BCMA_CC_PPL_PCHI_OFF 5 -+#define BCMA_CC_PPL_PCHI_MASK 0x0000003f -+ -+/* BCM4331 ChipControl numbers. */ -+#define BCMA_CHIPCTL_4331_BT_COEXIST BIT(0) /* 0 disable */ -+#define BCMA_CHIPCTL_4331_SECI BIT(1) /* 0 SECI is disabled (JATG functional) */ -+#define BCMA_CHIPCTL_4331_EXT_LNA BIT(2) /* 0 disable */ -+#define BCMA_CHIPCTL_4331_SPROM_GPIO13_15 BIT(3) /* sprom/gpio13-15 mux */ -+#define BCMA_CHIPCTL_4331_EXTPA_EN BIT(4) /* 0 ext pa disable, 1 ext pa enabled */ -+#define BCMA_CHIPCTL_4331_GPIOCLK_ON_SPROMCS BIT(5) /* set drive out GPIO_CLK on sprom_cs pin */ -+#define BCMA_CHIPCTL_4331_PCIE_MDIO_ON_SPROMCS BIT(6) /* use sprom_cs pin as PCIE mdio interface */ -+#define BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5 BIT(7) /* aband extpa will be at gpio2/5 and sprom_dout */ -+#define BCMA_CHIPCTL_4331_OVR_PIPEAUXCLKEN BIT(8) /* override core control on pipe_AuxClkEnable */ -+#define BCMA_CHIPCTL_4331_OVR_PIPEAUXPWRDOWN BIT(9) /* override core control on pipe_AuxPowerDown */ -+#define BCMA_CHIPCTL_4331_PCIE_AUXCLKEN BIT(10) /* pcie_auxclkenable */ -+#define BCMA_CHIPCTL_4331_PCIE_PIPE_PLLDOWN BIT(11) /* pcie_pipe_pllpowerdown */ -+#define BCMA_CHIPCTL_4331_BT_SHD0_ON_GPIO4 BIT(16) /* enable bt_shd0 at gpio4 */ -+#define BCMA_CHIPCTL_4331_BT_SHD1_ON_GPIO5 BIT(17) /* enable bt_shd1 at gpio5 */ -+ -+/* Data for the PMU, if available. -+ * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU) -+ */ -+struct bcma_chipcommon_pmu { -+ u8 rev; /* PMU revision */ -+ u32 crystalfreq; /* The active crystal frequency (in kHz) */ -+}; -+ -+#ifdef CONFIG_BCMA_DRIVER_MIPS -+struct bcma_pflash { -+ u8 buswidth; -+ u32 window; -+ u32 window_size; -+}; -+ -+struct bcma_serial_port { -+ void *regs; -+ unsigned long clockspeed; -+ unsigned int irq; -+ unsigned int baud_base; -+ unsigned int reg_shift; -+}; -+#endif /* CONFIG_BCMA_DRIVER_MIPS */ -+ -+struct bcma_drv_cc { -+ struct bcma_device *core; -+ u32 status; -+ u32 capabilities; -+ u32 capabilities_ext; -+ u8 setup_done:1; -+ /* Fast Powerup Delay constant */ -+ u16 fast_pwrup_delay; -+ struct bcma_chipcommon_pmu pmu; -+#ifdef CONFIG_BCMA_DRIVER_MIPS -+ struct bcma_pflash pflash; -+ -+ int nr_serial_ports; -+ struct bcma_serial_port serial_ports[4]; -+#endif /* CONFIG_BCMA_DRIVER_MIPS */ -+}; -+ -+/* Register access */ -+#define bcma_cc_read32(cc, offset) \ -+ bcma_read32((cc)->core, offset) -+#define bcma_cc_write32(cc, offset, val) \ -+ bcma_write32((cc)->core, offset, val) -+ -+#define bcma_cc_mask32(cc, offset, mask) \ -+ bcma_cc_write32(cc, offset, bcma_cc_read32(cc, offset) & (mask)) -+#define bcma_cc_set32(cc, offset, set) \ -+ bcma_cc_write32(cc, offset, bcma_cc_read32(cc, offset) | (set)) -+#define bcma_cc_maskset32(cc, offset, mask, set) \ -+ bcma_cc_write32(cc, offset, (bcma_cc_read32(cc, offset) & (mask)) | (set)) -+ -+extern void bcma_core_chipcommon_init(struct bcma_drv_cc *cc); -+ -+extern void bcma_chipco_suspend(struct bcma_drv_cc *cc); -+extern void bcma_chipco_resume(struct bcma_drv_cc *cc); -+ -+void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable); -+ -+extern void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, -+ u32 ticks); -+ -+void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value); -+ -+u32 bcma_chipco_irq_status(struct bcma_drv_cc *cc, u32 mask); -+ -+/* Chipcommon GPIO pin access. */ -+u32 bcma_chipco_gpio_in(struct bcma_drv_cc *cc, u32 mask); -+u32 bcma_chipco_gpio_out(struct bcma_drv_cc *cc, u32 mask, u32 value); -+u32 bcma_chipco_gpio_outen(struct bcma_drv_cc *cc, u32 mask, u32 value); -+u32 bcma_chipco_gpio_control(struct bcma_drv_cc *cc, u32 mask, u32 value); -+u32 bcma_chipco_gpio_intmask(struct bcma_drv_cc *cc, u32 mask, u32 value); -+u32 bcma_chipco_gpio_polarity(struct bcma_drv_cc *cc, u32 mask, u32 value); -+ -+/* PMU support */ -+extern void bcma_pmu_init(struct bcma_drv_cc *cc); -+ -+extern void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, -+ u32 value); -+extern void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, -+ u32 mask, u32 set); -+extern void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc, -+ u32 offset, u32 mask, u32 set); -+extern void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, -+ u32 offset, u32 mask, u32 set); -+ -+#endif /* LINUX_BCMA_DRIVER_CC_H_ */ ---- /dev/null -+++ b/include/linux/bcma/bcma_driver_pci.h -@@ -0,0 +1,214 @@ -+#ifndef LINUX_BCMA_DRIVER_PCI_H_ -+#define LINUX_BCMA_DRIVER_PCI_H_ -+ -+#include <linux/types.h> -+ -+struct pci_dev; -+ -+/** PCI core registers. **/ -+#define BCMA_CORE_PCI_CTL 0x0000 /* PCI Control */ -+#define BCMA_CORE_PCI_CTL_RST_OE 0x00000001 /* PCI_RESET Output Enable */ -+#define BCMA_CORE_PCI_CTL_RST 0x00000002 /* PCI_RESET driven out to pin */ -+#define BCMA_CORE_PCI_CTL_CLK_OE 0x00000004 /* Clock gate Output Enable */ -+#define BCMA_CORE_PCI_CTL_CLK 0x00000008 /* Gate for clock driven out to pin */ -+#define BCMA_CORE_PCI_ARBCTL 0x0010 /* PCI Arbiter Control */ -+#define BCMA_CORE_PCI_ARBCTL_INTERN 0x00000001 /* Use internal arbiter */ -+#define BCMA_CORE_PCI_ARBCTL_EXTERN 0x00000002 /* Use external arbiter */ -+#define BCMA_CORE_PCI_ARBCTL_PARKID 0x00000006 /* Mask, selects which agent is parked on an idle bus */ -+#define BCMA_CORE_PCI_ARBCTL_PARKID_LAST 0x00000000 /* Last requestor */ -+#define BCMA_CORE_PCI_ARBCTL_PARKID_4710 0x00000002 /* 4710 */ -+#define BCMA_CORE_PCI_ARBCTL_PARKID_EXT0 0x00000004 /* External requestor 0 */ -+#define BCMA_CORE_PCI_ARBCTL_PARKID_EXT1 0x00000006 /* External requestor 1 */ -+#define BCMA_CORE_PCI_ISTAT 0x0020 /* Interrupt status */ -+#define BCMA_CORE_PCI_ISTAT_INTA 0x00000001 /* PCI INTA# */ -+#define BCMA_CORE_PCI_ISTAT_INTB 0x00000002 /* PCI INTB# */ -+#define BCMA_CORE_PCI_ISTAT_SERR 0x00000004 /* PCI SERR# (write to clear) */ -+#define BCMA_CORE_PCI_ISTAT_PERR 0x00000008 /* PCI PERR# (write to clear) */ -+#define BCMA_CORE_PCI_ISTAT_PME 0x00000010 /* PCI PME# */ -+#define BCMA_CORE_PCI_IMASK 0x0024 /* Interrupt mask */ -+#define BCMA_CORE_PCI_IMASK_INTA 0x00000001 /* PCI INTA# */ -+#define BCMA_CORE_PCI_IMASK_INTB 0x00000002 /* PCI INTB# */ -+#define BCMA_CORE_PCI_IMASK_SERR 0x00000004 /* PCI SERR# */ -+#define BCMA_CORE_PCI_IMASK_PERR 0x00000008 /* PCI PERR# */ -+#define BCMA_CORE_PCI_IMASK_PME 0x00000010 /* PCI PME# */ -+#define BCMA_CORE_PCI_MBOX 0x0028 /* Backplane to PCI Mailbox */ -+#define BCMA_CORE_PCI_MBOX_F0_0 0x00000100 /* PCI function 0, INT 0 */ -+#define BCMA_CORE_PCI_MBOX_F0_1 0x00000200 /* PCI function 0, INT 1 */ -+#define BCMA_CORE_PCI_MBOX_F1_0 0x00000400 /* PCI function 1, INT 0 */ -+#define BCMA_CORE_PCI_MBOX_F1_1 0x00000800 /* PCI function 1, INT 1 */ -+#define BCMA_CORE_PCI_MBOX_F2_0 0x00001000 /* PCI function 2, INT 0 */ -+#define BCMA_CORE_PCI_MBOX_F2_1 0x00002000 /* PCI function 2, INT 1 */ -+#define BCMA_CORE_PCI_MBOX_F3_0 0x00004000 /* PCI function 3, INT 0 */ -+#define BCMA_CORE_PCI_MBOX_F3_1 0x00008000 /* PCI function 3, INT 1 */ -+#define BCMA_CORE_PCI_BCAST_ADDR 0x0050 /* Backplane Broadcast Address */ -+#define BCMA_CORE_PCI_BCAST_ADDR_MASK 0x000000FF -+#define BCMA_CORE_PCI_BCAST_DATA 0x0054 /* Backplane Broadcast Data */ -+#define BCMA_CORE_PCI_GPIO_IN 0x0060 /* rev >= 2 only */ -+#define BCMA_CORE_PCI_GPIO_OUT 0x0064 /* rev >= 2 only */ -+#define BCMA_CORE_PCI_GPIO_ENABLE 0x0068 /* rev >= 2 only */ -+#define BCMA_CORE_PCI_GPIO_CTL 0x006C /* rev >= 2 only */ -+#define BCMA_CORE_PCI_SBTOPCI0 0x0100 /* Backplane to PCI translation 0 (sbtopci0) */ -+#define BCMA_CORE_PCI_SBTOPCI0_MASK 0xFC000000 -+#define BCMA_CORE_PCI_SBTOPCI1 0x0104 /* Backplane to PCI translation 1 (sbtopci1) */ -+#define BCMA_CORE_PCI_SBTOPCI1_MASK 0xFC000000 -+#define BCMA_CORE_PCI_SBTOPCI2 0x0108 /* Backplane to PCI translation 2 (sbtopci2) */ -+#define BCMA_CORE_PCI_SBTOPCI2_MASK 0xC0000000 -+#define BCMA_CORE_PCI_CONFIG_ADDR 0x0120 /* pcie config space access */ -+#define BCMA_CORE_PCI_CONFIG_DATA 0x0124 /* pcie config space access */ -+#define BCMA_CORE_PCI_MDIO_CONTROL 0x0128 /* controls the mdio access */ -+#define BCMA_CORE_PCI_MDIOCTL_DIVISOR_MASK 0x7f /* clock to be used on MDIO */ -+#define BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL 0x2 -+#define BCMA_CORE_PCI_MDIOCTL_PREAM_EN 0x80 /* Enable preamble sequnce */ -+#define BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE 0x100 /* Tranaction complete */ -+#define BCMA_CORE_PCI_MDIO_DATA 0x012c /* Data to the mdio access */ -+#define BCMA_CORE_PCI_MDIODATA_MASK 0x0000ffff /* data 2 bytes */ -+#define BCMA_CORE_PCI_MDIODATA_TA 0x00020000 /* Turnaround */ -+#define BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD 18 /* Regaddr shift (rev < 10) */ -+#define BCMA_CORE_PCI_MDIODATA_REGADDR_MASK_OLD 0x003c0000 /* Regaddr Mask (rev < 10) */ -+#define BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD 22 /* Physmedia devaddr shift (rev < 10) */ -+#define BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK_OLD 0x0fc00000 /* Physmedia devaddr Mask (rev < 10) */ -+#define BCMA_CORE_PCI_MDIODATA_REGADDR_SHF 18 /* Regaddr shift */ -+#define BCMA_CORE_PCI_MDIODATA_REGADDR_MASK 0x007c0000 /* Regaddr Mask */ -+#define BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF 23 /* Physmedia devaddr shift */ -+#define BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK 0x0f800000 /* Physmedia devaddr Mask */ -+#define BCMA_CORE_PCI_MDIODATA_WRITE 0x10000000 /* write Transaction */ -+#define BCMA_CORE_PCI_MDIODATA_READ 0x20000000 /* Read Transaction */ -+#define BCMA_CORE_PCI_MDIODATA_START 0x40000000 /* start of Transaction */ -+#define BCMA_CORE_PCI_MDIODATA_DEV_ADDR 0x0 /* dev address for serdes */ -+#define BCMA_CORE_PCI_MDIODATA_BLK_ADDR 0x1F /* blk address for serdes */ -+#define BCMA_CORE_PCI_MDIODATA_DEV_PLL 0x1d /* SERDES PLL Dev */ -+#define BCMA_CORE_PCI_MDIODATA_DEV_TX 0x1e /* SERDES TX Dev */ -+#define BCMA_CORE_PCI_MDIODATA_DEV_RX 0x1f /* SERDES RX Dev */ -+#define BCMA_CORE_PCI_PCIEIND_ADDR 0x0130 /* indirect access to the internal register */ -+#define BCMA_CORE_PCI_PCIEIND_DATA 0x0134 /* Data to/from the internal regsiter */ -+#define BCMA_CORE_PCI_CLKREQENCTRL 0x0138 /* >= rev 6, Clkreq rdma control */ -+#define BCMA_CORE_PCI_PCICFG0 0x0400 /* PCI config space 0 (rev >= 8) */ -+#define BCMA_CORE_PCI_PCICFG1 0x0500 /* PCI config space 1 (rev >= 8) */ -+#define BCMA_CORE_PCI_PCICFG2 0x0600 /* PCI config space 2 (rev >= 8) */ -+#define BCMA_CORE_PCI_PCICFG3 0x0700 /* PCI config space 3 (rev >= 8) */ -+#define BCMA_CORE_PCI_SPROM(wordoffset) (0x0800 + ((wordoffset) * 2)) /* SPROM shadow area (72 bytes) */ -+ -+/* SBtoPCIx */ -+#define BCMA_CORE_PCI_SBTOPCI_MEM 0x00000000 -+#define BCMA_CORE_PCI_SBTOPCI_IO 0x00000001 -+#define BCMA_CORE_PCI_SBTOPCI_CFG0 0x00000002 -+#define BCMA_CORE_PCI_SBTOPCI_CFG1 0x00000003 -+#define BCMA_CORE_PCI_SBTOPCI_PREF 0x00000004 /* Prefetch enable */ -+#define BCMA_CORE_PCI_SBTOPCI_BURST 0x00000008 /* Burst enable */ -+#define BCMA_CORE_PCI_SBTOPCI_MRM 0x00000020 /* Memory Read Multiple */ -+#define BCMA_CORE_PCI_SBTOPCI_RC 0x00000030 /* Read Command mask (rev >= 11) */ -+#define BCMA_CORE_PCI_SBTOPCI_RC_READ 0x00000000 /* Memory read */ -+#define BCMA_CORE_PCI_SBTOPCI_RC_READL 0x00000010 /* Memory read line */ -+#define BCMA_CORE_PCI_SBTOPCI_RC_READM 0x00000020 /* Memory read multiple */ -+ -+/* PCIE protocol PHY diagnostic registers */ -+#define BCMA_CORE_PCI_PLP_MODEREG 0x200 /* Mode */ -+#define BCMA_CORE_PCI_PLP_STATUSREG 0x204 /* Status */ -+#define BCMA_CORE_PCI_PLP_POLARITYINV_STAT 0x10 /* Status reg PCIE_PLP_STATUSREG */ -+#define BCMA_CORE_PCI_PLP_LTSSMCTRLREG 0x208 /* LTSSM control */ -+#define BCMA_CORE_PCI_PLP_LTLINKNUMREG 0x20c /* Link Training Link number */ -+#define BCMA_CORE_PCI_PLP_LTLANENUMREG 0x210 /* Link Training Lane number */ -+#define BCMA_CORE_PCI_PLP_LTNFTSREG 0x214 /* Link Training N_FTS */ -+#define BCMA_CORE_PCI_PLP_ATTNREG 0x218 /* Attention */ -+#define BCMA_CORE_PCI_PLP_ATTNMASKREG 0x21C /* Attention Mask */ -+#define BCMA_CORE_PCI_PLP_RXERRCTR 0x220 /* Rx Error */ -+#define BCMA_CORE_PCI_PLP_RXFRMERRCTR 0x224 /* Rx Framing Error */ -+#define BCMA_CORE_PCI_PLP_RXERRTHRESHREG 0x228 /* Rx Error threshold */ -+#define BCMA_CORE_PCI_PLP_TESTCTRLREG 0x22C /* Test Control reg */ -+#define BCMA_CORE_PCI_PLP_SERDESCTRLOVRDREG 0x230 /* SERDES Control Override */ -+#define BCMA_CORE_PCI_PLP_TIMINGOVRDREG 0x234 /* Timing param override */ -+#define BCMA_CORE_PCI_PLP_RXTXSMDIAGREG 0x238 /* RXTX State Machine Diag */ -+#define BCMA_CORE_PCI_PLP_LTSSMDIAGREG 0x23C /* LTSSM State Machine Diag */ -+ -+/* PCIE protocol DLLP diagnostic registers */ -+#define BCMA_CORE_PCI_DLLP_LCREG 0x100 /* Link Control */ -+#define BCMA_CORE_PCI_DLLP_LSREG 0x104 /* Link Status */ -+#define BCMA_CORE_PCI_DLLP_LAREG 0x108 /* Link Attention */ -+#define BCMA_CORE_PCI_DLLP_LSREG_LINKUP (1 << 16) -+#define BCMA_CORE_PCI_DLLP_LAMASKREG 0x10C /* Link Attention Mask */ -+#define BCMA_CORE_PCI_DLLP_NEXTTXSEQNUMREG 0x110 /* Next Tx Seq Num */ -+#define BCMA_CORE_PCI_DLLP_ACKEDTXSEQNUMREG 0x114 /* Acked Tx Seq Num */ -+#define BCMA_CORE_PCI_DLLP_PURGEDTXSEQNUMREG 0x118 /* Purged Tx Seq Num */ -+#define BCMA_CORE_PCI_DLLP_RXSEQNUMREG 0x11C /* Rx Sequence Number */ -+#define BCMA_CORE_PCI_DLLP_LRREG 0x120 /* Link Replay */ -+#define BCMA_CORE_PCI_DLLP_LACKTOREG 0x124 /* Link Ack Timeout */ -+#define BCMA_CORE_PCI_DLLP_PMTHRESHREG 0x128 /* Power Management Threshold */ -+#define BCMA_CORE_PCI_DLLP_RTRYWPREG 0x12C /* Retry buffer write ptr */ -+#define BCMA_CORE_PCI_DLLP_RTRYRPREG 0x130 /* Retry buffer Read ptr */ -+#define BCMA_CORE_PCI_DLLP_RTRYPPREG 0x134 /* Retry buffer Purged ptr */ -+#define BCMA_CORE_PCI_DLLP_RTRRWREG 0x138 /* Retry buffer Read/Write */ -+#define BCMA_CORE_PCI_DLLP_ECTHRESHREG 0x13C /* Error Count Threshold */ -+#define BCMA_CORE_PCI_DLLP_TLPERRCTRREG 0x140 /* TLP Error Counter */ -+#define BCMA_CORE_PCI_DLLP_ERRCTRREG 0x144 /* Error Counter */ -+#define BCMA_CORE_PCI_DLLP_NAKRXCTRREG 0x148 /* NAK Received Counter */ -+#define BCMA_CORE_PCI_DLLP_TESTREG 0x14C /* Test */ -+#define BCMA_CORE_PCI_DLLP_PKTBIST 0x150 /* Packet BIST */ -+#define BCMA_CORE_PCI_DLLP_PCIE11 0x154 /* DLLP PCIE 1.1 reg */ -+ -+/* SERDES RX registers */ -+#define BCMA_CORE_PCI_SERDES_RX_CTRL 1 /* Rx cntrl */ -+#define BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE 0x80 /* rxpolarity_force */ -+#define BCMA_CORE_PCI_SERDES_RX_CTRL_POLARITY 0x40 /* rxpolarity_value */ -+#define BCMA_CORE_PCI_SERDES_RX_TIMER1 2 /* Rx Timer1 */ -+#define BCMA_CORE_PCI_SERDES_RX_CDR 6 /* CDR */ -+#define BCMA_CORE_PCI_SERDES_RX_CDRBW 7 /* CDR BW */ -+ -+/* SERDES PLL registers */ -+#define BCMA_CORE_PCI_SERDES_PLL_CTRL 1 /* PLL control reg */ -+#define BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN 0x4000 /* bit 14 is FREQDET on */ -+ -+/* PCIcore specific boardflags */ -+#define BCMA_CORE_PCI_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */ -+ -+/* PCIE Config space accessing MACROS */ -+#define BCMA_CORE_PCI_CFG_BUS_SHIFT 24 /* Bus shift */ -+#define BCMA_CORE_PCI_CFG_SLOT_SHIFT 19 /* Slot/Device shift */ -+#define BCMA_CORE_PCI_CFG_FUN_SHIFT 16 /* Function shift */ -+#define BCMA_CORE_PCI_CFG_OFF_SHIFT 0 /* Register shift */ -+ -+#define BCMA_CORE_PCI_CFG_BUS_MASK 0xff /* Bus mask */ -+#define BCMA_CORE_PCI_CFG_SLOT_MASK 0x1f /* Slot/Device mask */ -+#define BCMA_CORE_PCI_CFG_FUN_MASK 7 /* Function mask */ -+#define BCMA_CORE_PCI_CFG_OFF_MASK 0xfff /* Register mask */ -+ -+/* PCIE Root Capability Register bits (Host mode only) */ -+#define BCMA_CORE_PCI_RC_CRS_VISIBILITY 0x0001 -+ -+struct bcma_drv_pci; -+ -+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE -+struct bcma_drv_pci_host { -+ struct bcma_drv_pci *pdev; -+ -+ u32 host_cfg_addr; -+ spinlock_t cfgspace_lock; -+ -+ struct pci_controller pci_controller; -+ struct pci_ops pci_ops; -+ struct resource mem_resource; -+ struct resource io_resource; -+}; -+#endif -+ -+struct bcma_drv_pci { -+ struct bcma_device *core; -+ u8 setup_done:1; -+ u8 hostmode:1; -+ -+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE -+ struct bcma_drv_pci_host *host_controller; -+#endif -+}; -+ -+/* Register access */ -+#define pcicore_read32(pc, offset) bcma_read32((pc)->core, offset) -+#define pcicore_write32(pc, offset, val) bcma_write32((pc)->core, offset, val) -+ -+extern void __devinit bcma_core_pci_init(struct bcma_drv_pci *pc); -+extern int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, -+ struct bcma_device *core, bool enable); -+ -+extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev); -+extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev); -+ -+#endif /* LINUX_BCMA_DRIVER_PCI_H_ */ ---- /dev/null -+++ b/include/linux/bcma/bcma_regs.h -@@ -0,0 +1,86 @@ -+#ifndef LINUX_BCMA_REGS_H_ -+#define LINUX_BCMA_REGS_H_ -+ -+/* Some single registers are shared between many cores */ -+/* BCMA_CLKCTLST: ChipCommon (rev >= 20), PCIe, 80211 */ -+#define BCMA_CLKCTLST 0x01E0 /* Clock control and status */ -+#define BCMA_CLKCTLST_FORCEALP 0x00000001 /* Force ALP request */ -+#define BCMA_CLKCTLST_FORCEHT 0x00000002 /* Force HT request */ -+#define BCMA_CLKCTLST_FORCEILP 0x00000004 /* Force ILP request */ -+#define BCMA_CLKCTLST_HAVEALPREQ 0x00000008 /* ALP available request */ -+#define BCMA_CLKCTLST_HAVEHTREQ 0x00000010 /* HT available request */ -+#define BCMA_CLKCTLST_HWCROFF 0x00000020 /* Force HW clock request off */ -+#define BCMA_CLKCTLST_EXTRESREQ 0x00000700 /* Mask of external resource requests */ -+#define BCMA_CLKCTLST_HAVEALP 0x00010000 /* ALP available */ -+#define BCMA_CLKCTLST_HAVEHT 0x00020000 /* HT available */ -+#define BCMA_CLKCTLST_BP_ON_ALP 0x00040000 /* RO: running on ALP clock */ -+#define BCMA_CLKCTLST_BP_ON_HT 0x00080000 /* RO: running on HT clock */ -+#define BCMA_CLKCTLST_EXTRESST 0x07000000 /* Mask of external resource status */ -+/* Is there any BCM4328 on BCMA bus? */ -+#define BCMA_CLKCTLST_4328A0_HAVEHT 0x00010000 /* 4328a0 has reversed bits */ -+#define BCMA_CLKCTLST_4328A0_HAVEALP 0x00020000 /* 4328a0 has reversed bits */ -+ -+/* Agent registers (common for every core) */ -+#define BCMA_IOCTL 0x0408 /* IO control */ -+#define BCMA_IOCTL_CLK 0x0001 -+#define BCMA_IOCTL_FGC 0x0002 -+#define BCMA_IOCTL_CORE_BITS 0x3FFC -+#define BCMA_IOCTL_PME_EN 0x4000 -+#define BCMA_IOCTL_BIST_EN 0x8000 -+#define BCMA_IOST 0x0500 /* IO status */ -+#define BCMA_IOST_CORE_BITS 0x0FFF -+#define BCMA_IOST_DMA64 0x1000 -+#define BCMA_IOST_GATED_CLK 0x2000 -+#define BCMA_IOST_BIST_ERROR 0x4000 -+#define BCMA_IOST_BIST_DONE 0x8000 -+#define BCMA_RESET_CTL 0x0800 -+#define BCMA_RESET_CTL_RESET 0x0001 -+ -+/* BCMA PCI config space registers. */ -+#define BCMA_PCI_PMCSR 0x44 -+#define BCMA_PCI_PE 0x100 -+#define BCMA_PCI_BAR0_WIN 0x80 /* Backplane address space 0 */ -+#define BCMA_PCI_BAR1_WIN 0x84 /* Backplane address space 1 */ -+#define BCMA_PCI_SPROMCTL 0x88 /* SPROM control */ -+#define BCMA_PCI_SPROMCTL_WE 0x10 /* SPROM write enable */ -+#define BCMA_PCI_BAR1_CONTROL 0x8c /* Address space 1 burst control */ -+#define BCMA_PCI_IRQS 0x90 /* PCI interrupts */ -+#define BCMA_PCI_IRQMASK 0x94 /* PCI IRQ control and mask (pcirev >= 6 only) */ -+#define BCMA_PCI_BACKPLANE_IRQS 0x98 /* Backplane Interrupts */ -+#define BCMA_PCI_BAR0_WIN2 0xAC -+#define BCMA_PCI_GPIO_IN 0xB0 /* GPIO Input (pcirev >= 3 only) */ -+#define BCMA_PCI_GPIO_OUT 0xB4 /* GPIO Output (pcirev >= 3 only) */ -+#define BCMA_PCI_GPIO_OUT_ENABLE 0xB8 /* GPIO Output Enable/Disable (pcirev >= 3 only) */ -+#define BCMA_PCI_GPIO_SCS 0x10 /* PCI config space bit 4 for 4306c0 slow clock source */ -+#define BCMA_PCI_GPIO_HWRAD 0x20 /* PCI config space GPIO 13 for hw radio disable */ -+#define BCMA_PCI_GPIO_XTAL 0x40 /* PCI config space GPIO 14 for Xtal powerup */ -+#define BCMA_PCI_GPIO_PLL 0x80 /* PCI config space GPIO 15 for PLL powerdown */ -+ -+/* SiliconBackplane Address Map. -+ * All regions may not exist on all chips. -+ */ -+#define BCMA_SOC_SDRAM_BASE 0x00000000U /* Physical SDRAM */ -+#define BCMA_SOC_PCI_MEM 0x08000000U /* Host Mode sb2pcitranslation0 (64 MB) */ -+#define BCMA_SOC_PCI_MEM_SZ (64 * 1024 * 1024) -+#define BCMA_SOC_PCI_CFG 0x0c000000U /* Host Mode sb2pcitranslation1 (64 MB) */ -+#define BCMA_SOC_SDRAM_SWAPPED 0x10000000U /* Byteswapped Physical SDRAM */ -+#define BCMA_SOC_SDRAM_R2 0x80000000U /* Region 2 for sdram (512 MB) */ -+ -+ -+#define BCMA_SOC_PCI_DMA 0x40000000U /* Client Mode sb2pcitranslation2 (1 GB) */ -+#define BCMA_SOC_PCI_DMA2 0x80000000U /* Client Mode sb2pcitranslation2 (1 GB) */ -+#define BCMA_SOC_PCI_DMA_SZ 0x40000000U /* Client Mode sb2pcitranslation2 size in bytes */ -+#define BCMA_SOC_PCIE_DMA_L32 0x00000000U /* PCIE Client Mode sb2pcitranslation2 -+ * (2 ZettaBytes), low 32 bits -+ */ -+#define BCMA_SOC_PCIE_DMA_H32 0x80000000U /* PCIE Client Mode sb2pcitranslation2 -+ * (2 ZettaBytes), high 32 bits -+ */ -+ -+#define BCMA_SOC_PCI1_MEM 0x40000000U /* Host Mode sb2pcitranslation0 (64 MB) */ -+#define BCMA_SOC_PCI1_CFG 0x44000000U /* Host Mode sb2pcitranslation1 (64 MB) */ -+#define BCMA_SOC_PCIE1_DMA_H32 0xc0000000U /* PCIE Client Mode sb2pcitranslation2 -+ * (2 ZettaBytes), high 32 bits -+ */ -+ -+#endif /* LINUX_BCMA_REGS_H_ */ ---- a/include/linux/mod_devicetable.h -+++ b/include/linux/mod_devicetable.h -@@ -382,6 +382,23 @@ struct ssb_device_id { - #define SSB_ANY_ID 0xFFFF - #define SSB_ANY_REV 0xFF - -+/* Broadcom's specific AMBA core, see drivers/bcma/ */ -+struct bcma_device_id { -+ __u16 manuf; -+ __u16 id; -+ __u8 rev; -+ __u8 class; -+}; -+#define BCMA_CORE(_manuf, _id, _rev, _class) \ -+ { .manuf = _manuf, .id = _id, .rev = _rev, .class = _class, } -+#define BCMA_CORETABLE_END \ -+ { 0, }, -+ -+#define BCMA_ANY_MANUF 0xFFFF -+#define BCMA_ANY_ID 0xFFFF -+#define BCMA_ANY_REV 0xFF -+#define BCMA_ANY_CLASS 0xFF -+ - struct virtio_device_id { - __u32 device; - __u32 vendor; ---- a/scripts/mod/file2alias.c -+++ b/scripts/mod/file2alias.c -@@ -702,6 +702,24 @@ static int do_ssb_entry(const char *file - return 1; - } - -+/* Looks like: bcma:mNidNrevNclN. */ -+static int do_bcma_entry(const char *filename, -+ struct bcma_device_id *id, char *alias) -+{ -+ id->manuf = TO_NATIVE(id->manuf); -+ id->id = TO_NATIVE(id->id); -+ id->rev = TO_NATIVE(id->rev); -+ id->class = TO_NATIVE(id->class); -+ -+ strcpy(alias, "bcma:"); -+ ADD(alias, "m", id->manuf != BCMA_ANY_MANUF, id->manuf); -+ ADD(alias, "id", id->id != BCMA_ANY_ID, id->id); -+ ADD(alias, "rev", id->rev != BCMA_ANY_REV, id->rev); -+ ADD(alias, "cl", id->class != BCMA_ANY_CLASS, id->class); -+ add_wildcard(alias); -+ return 1; -+} -+ - /* Looks like: virtio:dNvN */ - static int do_virtio_entry(const char *filename, struct virtio_device_id *id, - char *alias) -@@ -968,6 +986,10 @@ void handle_moddevtable(struct module *m - do_table(symval, sym->st_size, - sizeof(struct ssb_device_id), "ssb", - do_ssb_entry, mod); -+ else if (sym_is(symname, "__mod_bcma_device_table")) -+ do_table(symval, sym->st_size, -+ sizeof(struct bcma_device_id), "bcma", -+ do_bcma_entry, mod); - else if (sym_is(symname, "__mod_virtio_device_table")) - do_table(symval, sym->st_size, - sizeof(struct virtio_device_id), "virtio", ---- /dev/null -+++ b/drivers/bcma/sprom.c -@@ -0,0 +1,450 @@ -+/* -+ * Broadcom specific AMBA -+ * SPROM reading -+ * -+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+ -+#include <linux/bcma/bcma.h> -+#include <linux/bcma/bcma_regs.h> -+#include <linux/pci.h> -+#include <linux/io.h> -+#include <linux/dma-mapping.h> -+#include <linux/slab.h> -+ -+static int(*get_fallback_sprom)(struct bcma_bus *dev, struct ssb_sprom *out); -+ -+/** -+ * bcma_arch_register_fallback_sprom - Registers a method providing a -+ * fallback SPROM if no SPROM is found. -+ * -+ * @sprom_callback: The callback function. -+ * -+ * With this function the architecture implementation may register a -+ * callback handler which fills the SPROM data structure. The fallback is -+ * used for PCI based BCMA devices, where no valid SPROM can be found -+ * in the shadow registers and to provide the SPROM for SoCs where BCMA is -+ * to controll the system bus. -+ * -+ * This function is useful for weird architectures that have a half-assed -+ * BCMA device hardwired to their PCI bus. -+ * -+ * This function is available for architecture code, only. So it is not -+ * exported. -+ */ -+int bcma_arch_register_fallback_sprom(int (*sprom_callback)(struct bcma_bus *bus, -+ struct ssb_sprom *out)) -+{ -+ if (get_fallback_sprom) -+ return -EEXIST; -+ get_fallback_sprom = sprom_callback; -+ -+ return 0; -+} -+ -+static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus, -+ struct ssb_sprom *out) -+{ -+ int err; -+ -+ if (!get_fallback_sprom) { -+ err = -ENOENT; -+ goto fail; -+ } -+ -+ err = get_fallback_sprom(bus, out); -+ if (err) -+ goto fail; -+ -+ pr_debug("Using SPROM revision %d provided by" -+ " platform.\n", bus->sprom.revision); -+ return 0; -+fail: -+ pr_warn("Using fallback SPROM failed (err %d)\n", err); -+ return err; -+} -+ -+/************************************************** -+ * R/W ops. -+ **************************************************/ -+ -+static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom) -+{ -+ int i; -+ for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++) -+ sprom[i] = bcma_read16(bus->drv_cc.core, -+ offset + (i * 2)); -+} -+ -+/************************************************** -+ * Validation. -+ **************************************************/ -+ -+static inline u8 bcma_crc8(u8 crc, u8 data) -+{ -+ /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */ -+ static const u8 t[] = { -+ 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, -+ 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, -+ 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, -+ 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, -+ 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, -+ 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, -+ 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, -+ 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, -+ 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, -+ 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, -+ 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, -+ 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, -+ 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, -+ 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, -+ 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, -+ 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, -+ 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, -+ 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, -+ 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, -+ 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, -+ 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, -+ 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, -+ 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, -+ 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, -+ 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, -+ 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, -+ 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, -+ 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, -+ 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, -+ 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, -+ 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, -+ 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, -+ }; -+ return t[crc ^ data]; -+} -+ -+static u8 bcma_sprom_crc(const u16 *sprom) -+{ -+ int word; -+ u8 crc = 0xFF; -+ -+ for (word = 0; word < SSB_SPROMSIZE_WORDS_R4 - 1; word++) { -+ crc = bcma_crc8(crc, sprom[word] & 0x00FF); -+ crc = bcma_crc8(crc, (sprom[word] & 0xFF00) >> 8); -+ } -+ crc = bcma_crc8(crc, sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & 0x00FF); -+ crc ^= 0xFF; -+ -+ return crc; -+} -+ -+static int bcma_sprom_check_crc(const u16 *sprom) -+{ -+ u8 crc; -+ u8 expected_crc; -+ u16 tmp; -+ -+ crc = bcma_sprom_crc(sprom); -+ tmp = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_CRC; -+ expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT; -+ if (crc != expected_crc) -+ return -EPROTO; -+ -+ return 0; -+} -+ -+static int bcma_sprom_valid(const u16 *sprom) -+{ -+ u16 revision; -+ int err; -+ -+ err = bcma_sprom_check_crc(sprom); -+ if (err) -+ return err; -+ -+ revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_REV; -+ if (revision != 8 && revision != 9) { -+ pr_err("Unsupported SPROM revision: %d\n", revision); -+ return -ENOENT; -+ } -+ -+ return 0; -+} -+ -+/************************************************** -+ * SPROM extraction. -+ **************************************************/ -+ -+#define SPOFF(offset) ((offset) / sizeof(u16)) -+ -+#define SPEX(_field, _offset, _mask, _shift) \ -+ bus->sprom._field = ((sprom[SPOFF(_offset)] & (_mask)) >> (_shift)) -+ -+static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom) -+{ -+ u16 v, o; -+ int i; -+ u16 pwr_info_offset[] = { -+ SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1, -+ SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3 -+ }; -+ BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) != -+ ARRAY_SIZE(bus->sprom.core_pwr_info)); -+ -+ bus->sprom.revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & -+ SSB_SPROM_REVISION_REV; -+ -+ for (i = 0; i < 3; i++) { -+ v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i]; -+ *(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v); -+ } -+ -+ SPEX(board_rev, SSB_SPROM8_BOARDREV, ~0, 0); -+ -+ SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G0, -+ SSB_SPROM4_TXPID2G0_SHIFT); -+ SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G1, -+ SSB_SPROM4_TXPID2G1_SHIFT); -+ SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G2, -+ SSB_SPROM4_TXPID2G2_SHIFT); -+ SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G3, -+ SSB_SPROM4_TXPID2G3_SHIFT); -+ -+ SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL0, -+ SSB_SPROM4_TXPID5GL0_SHIFT); -+ SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL1, -+ SSB_SPROM4_TXPID5GL1_SHIFT); -+ SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL2, -+ SSB_SPROM4_TXPID5GL2_SHIFT); -+ SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL3, -+ SSB_SPROM4_TXPID5GL3_SHIFT); -+ -+ SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G0, -+ SSB_SPROM4_TXPID5G0_SHIFT); -+ SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G1, -+ SSB_SPROM4_TXPID5G1_SHIFT); -+ SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G2, -+ SSB_SPROM4_TXPID5G2_SHIFT); -+ SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G3, -+ SSB_SPROM4_TXPID5G3_SHIFT); -+ -+ SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH0, -+ SSB_SPROM4_TXPID5GH0_SHIFT); -+ SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH1, -+ SSB_SPROM4_TXPID5GH1_SHIFT); -+ SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH2, -+ SSB_SPROM4_TXPID5GH2_SHIFT); -+ SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH3, -+ SSB_SPROM4_TXPID5GH3_SHIFT); -+ -+ SPEX(boardflags_lo, SSB_SPROM8_BFLLO, ~0, 0); -+ SPEX(boardflags_hi, SSB_SPROM8_BFLHI, ~0, 0); -+ SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, ~0, 0); -+ SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, ~0, 0); -+ -+ SPEX(country_code, SSB_SPROM8_CCODE, ~0, 0); -+ -+ /* Extract cores power info info */ -+ for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) { -+ o = pwr_info_offset[i]; -+ SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI, -+ SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT); -+ SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI, -+ SSB_SPROM8_2G_MAXP, 0); -+ -+ SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0); -+ -+ SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI, -+ SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT); -+ SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI, -+ SSB_SPROM8_5G_MAXP, 0); -+ SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP, -+ SSB_SPROM8_5GH_MAXP, 0); -+ SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP, -+ SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT); -+ -+ SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0); -+ SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0); -+ } -+ -+ SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TSSIPOS, -+ SSB_SROM8_FEM_TSSIPOS_SHIFT); -+ SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_EXTPA_GAIN, -+ SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); -+ SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_PDET_RANGE, -+ SSB_SROM8_FEM_PDET_RANGE_SHIFT); -+ SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TR_ISO, -+ SSB_SROM8_FEM_TR_ISO_SHIFT); -+ SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_ANTSWLUT, -+ SSB_SROM8_FEM_ANTSWLUT_SHIFT); -+ -+ SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TSSIPOS, -+ SSB_SROM8_FEM_TSSIPOS_SHIFT); -+ SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_EXTPA_GAIN, -+ SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); -+ SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_PDET_RANGE, -+ SSB_SROM8_FEM_PDET_RANGE_SHIFT); -+ SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TR_ISO, -+ SSB_SROM8_FEM_TR_ISO_SHIFT); -+ SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_ANTSWLUT, -+ SSB_SROM8_FEM_ANTSWLUT_SHIFT); -+} -+ -+/* -+ * Indicates the presence of external SPROM. -+ */ -+static bool bcma_sprom_ext_available(struct bcma_bus *bus) -+{ -+ u32 chip_status; -+ u32 srom_control; -+ u32 present_mask; -+ -+ if (bus->drv_cc.core->id.rev >= 31) { -+ if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) -+ return false; -+ -+ srom_control = bcma_read32(bus->drv_cc.core, -+ BCMA_CC_SROM_CONTROL); -+ return srom_control & BCMA_CC_SROM_CONTROL_PRESENT; -+ } -+ -+ /* older chipcommon revisions use chip status register */ -+ chip_status = bcma_read32(bus->drv_cc.core, BCMA_CC_CHIPSTAT); -+ switch (bus->chipinfo.id) { -+ case 0x4313: -+ present_mask = BCMA_CC_CHIPST_4313_SPROM_PRESENT; -+ break; -+ -+ case 0x4331: -+ present_mask = BCMA_CC_CHIPST_4331_SPROM_PRESENT; -+ break; -+ -+ default: -+ return true; -+ } -+ -+ return chip_status & present_mask; -+} -+ -+/* -+ * Indicates that on-chip OTP memory is present and enabled. -+ */ -+static bool bcma_sprom_onchip_available(struct bcma_bus *bus) -+{ -+ u32 chip_status; -+ u32 otpsize = 0; -+ bool present; -+ -+ chip_status = bcma_read32(bus->drv_cc.core, BCMA_CC_CHIPSTAT); -+ switch (bus->chipinfo.id) { -+ case 0x4313: -+ present = chip_status & BCMA_CC_CHIPST_4313_OTP_PRESENT; -+ break; -+ -+ case 0x4331: -+ present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT; -+ break; -+ -+ case 43224: -+ case 43225: -+ /* for these chips OTP is always available */ -+ present = true; -+ break; -+ -+ default: -+ present = false; -+ break; -+ } -+ -+ if (present) { -+ otpsize = bus->drv_cc.capabilities & BCMA_CC_CAP_OTPS; -+ otpsize >>= BCMA_CC_CAP_OTPS_SHIFT; -+ } -+ -+ return otpsize != 0; -+} -+ -+/* -+ * Verify OTP is filled and determine the byte -+ * offset where SPROM data is located. -+ * -+ * On error, returns 0; byte offset otherwise. -+ */ -+static int bcma_sprom_onchip_offset(struct bcma_bus *bus) -+{ -+ struct bcma_device *cc = bus->drv_cc.core; -+ u32 offset; -+ -+ /* verify OTP status */ -+ if ((bcma_read32(cc, BCMA_CC_OTPS) & BCMA_CC_OTPS_GU_PROG_HW) == 0) -+ return 0; -+ -+ /* obtain bit offset from otplayout register */ -+ offset = (bcma_read32(cc, BCMA_CC_OTPL) & BCMA_CC_OTPL_GURGN_OFFSET); -+ return BCMA_CC_SPROM + (offset >> 3); -+} -+ -+int bcma_sprom_get(struct bcma_bus *bus) -+{ -+ u16 offset = BCMA_CC_SPROM; -+ u16 *sprom; -+ int err = 0; -+ -+ if (!bus->drv_cc.core) -+ return -EOPNOTSUPP; -+ -+ if (!bcma_sprom_ext_available(bus)) { -+ /* -+ * External SPROM takes precedence so check -+ * on-chip OTP only when no external SPROM -+ * is present. -+ */ -+ if (bcma_sprom_onchip_available(bus)) { -+ /* determine offset */ -+ offset = bcma_sprom_onchip_offset(bus); -+ } -+ if (!offset) { -+ /* -+ * Maybe there is no SPROM on the device? -+ * Now we ask the arch code if there is some sprom -+ * available for this device in some other storage. -+ */ -+ err = bcma_fill_sprom_with_fallback(bus, &bus->sprom); -+ return err; -+ } -+ } -+ -+ sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), -+ GFP_KERNEL); -+ if (!sprom) -+ return -ENOMEM; -+ -+ if (bus->chipinfo.id == 0x4331) -+ bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false); -+ -+ pr_debug("SPROM offset 0x%x\n", offset); -+ bcma_sprom_read(bus, offset, sprom); -+ -+ if (bus->chipinfo.id == 0x4331) -+ bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true); -+ -+ err = bcma_sprom_valid(sprom); -+ if (err) -+ goto out; -+ -+ bcma_sprom_extract_r8(bus, sprom); -+ -+out: -+ kfree(sprom); -+ return err; -+} ---- /dev/null -+++ b/drivers/bcma/driver_pci_host.c -@@ -0,0 +1,589 @@ -+/* -+ * Broadcom specific AMBA -+ * PCI Core in hostmode -+ * -+ * Copyright 2005 - 2011, Broadcom Corporation -+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch> -+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include <linux/pci.h> -+#include <linux/export.h> -+#include <linux/bcma/bcma.h> -+#include <asm/paccess.h> -+ -+/* Probe a 32bit value on the bus and catch bus exceptions. -+ * Returns nonzero on a bus exception. -+ * This is MIPS specific */ -+#define mips_busprobe32(val, addr) get_dbe((val), ((u32 *)(addr))) -+ -+/* Assume one-hot slot wiring */ -+#define BCMA_PCI_SLOT_MAX 16 -+#define PCI_CONFIG_SPACE_SIZE 256 -+ -+bool __devinit bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc) -+{ -+ struct bcma_bus *bus = pc->core->bus; -+ u16 chipid_top; -+ u32 tmp; -+ -+ chipid_top = (bus->chipinfo.id & 0xFF00); -+ if (chipid_top != 0x4700 && -+ chipid_top != 0x5300) -+ return false; -+ -+ if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) { -+ pr_info("This PCI core is disabled and not working\n"); -+ return false; -+ } -+ -+ bcma_core_enable(pc->core, 0); -+ -+ return !mips_busprobe32(tmp, pc->core->io_addr); -+} -+ -+static u32 bcma_pcie_read_config(struct bcma_drv_pci *pc, u32 address) -+{ -+ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_ADDR, address); -+ pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_ADDR); -+ return pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_DATA); -+} -+ -+static void bcma_pcie_write_config(struct bcma_drv_pci *pc, u32 address, -+ u32 data) -+{ -+ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_ADDR, address); -+ pcicore_read32(pc, BCMA_CORE_PCI_CONFIG_ADDR); -+ pcicore_write32(pc, BCMA_CORE_PCI_CONFIG_DATA, data); -+} -+ -+static u32 bcma_get_cfgspace_addr(struct bcma_drv_pci *pc, unsigned int dev, -+ unsigned int func, unsigned int off) -+{ -+ u32 addr = 0; -+ -+ /* Issue config commands only when the data link is up (atleast -+ * one external pcie device is present). -+ */ -+ if (dev >= 2 || !(bcma_pcie_read(pc, BCMA_CORE_PCI_DLLP_LSREG) -+ & BCMA_CORE_PCI_DLLP_LSREG_LINKUP)) -+ goto out; -+ -+ /* Type 0 transaction */ -+ /* Slide the PCI window to the appropriate slot */ -+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI1, BCMA_CORE_PCI_SBTOPCI_CFG0); -+ /* Calculate the address */ -+ addr = pc->host_controller->host_cfg_addr; -+ addr |= (dev << BCMA_CORE_PCI_CFG_SLOT_SHIFT); -+ addr |= (func << BCMA_CORE_PCI_CFG_FUN_SHIFT); -+ addr |= (off & ~3); -+ -+out: -+ return addr; -+} -+ -+static int bcma_extpci_read_config(struct bcma_drv_pci *pc, unsigned int dev, -+ unsigned int func, unsigned int off, -+ void *buf, int len) -+{ -+ int err = -EINVAL; -+ u32 addr, val; -+ void __iomem *mmio = 0; -+ -+ WARN_ON(!pc->hostmode); -+ if (unlikely(len != 1 && len != 2 && len != 4)) -+ goto out; -+ if (dev == 0) { -+ /* we support only two functions on device 0 */ -+ if (func > 1) -+ return -EINVAL; -+ -+ /* accesses to config registers with offsets >= 256 -+ * requires indirect access. -+ */ -+ if (off >= PCI_CONFIG_SPACE_SIZE) { -+ addr = (func << 12); -+ addr |= (off & 0x0FFF); -+ val = bcma_pcie_read_config(pc, addr); -+ } else { -+ addr = BCMA_CORE_PCI_PCICFG0; -+ addr |= (func << 8); -+ addr |= (off & 0xfc); -+ val = pcicore_read32(pc, addr); -+ } -+ } else { -+ addr = bcma_get_cfgspace_addr(pc, dev, func, off); -+ if (unlikely(!addr)) -+ goto out; -+ err = -ENOMEM; -+ mmio = ioremap_nocache(addr, len); -+ if (!mmio) -+ goto out; -+ -+ if (mips_busprobe32(val, mmio)) { -+ val = 0xffffffff; -+ goto unmap; -+ } -+ -+ val = readl(mmio); -+ } -+ val >>= (8 * (off & 3)); -+ -+ switch (len) { -+ case 1: -+ *((u8 *)buf) = (u8)val; -+ break; -+ case 2: -+ *((u16 *)buf) = (u16)val; -+ break; -+ case 4: -+ *((u32 *)buf) = (u32)val; -+ break; -+ } -+ err = 0; -+unmap: -+ if (mmio) -+ iounmap(mmio); -+out: -+ return err; -+} -+ -+static int bcma_extpci_write_config(struct bcma_drv_pci *pc, unsigned int dev, -+ unsigned int func, unsigned int off, -+ const void *buf, int len) -+{ -+ int err = -EINVAL; -+ u32 addr = 0, val = 0; -+ void __iomem *mmio = 0; -+ u16 chipid = pc->core->bus->chipinfo.id; -+ -+ WARN_ON(!pc->hostmode); -+ if (unlikely(len != 1 && len != 2 && len != 4)) -+ goto out; -+ if (dev == 0) { -+ /* accesses to config registers with offsets >= 256 -+ * requires indirect access. -+ */ -+ if (off < PCI_CONFIG_SPACE_SIZE) { -+ addr = pc->core->addr + BCMA_CORE_PCI_PCICFG0; -+ addr |= (func << 8); -+ addr |= (off & 0xfc); -+ mmio = ioremap_nocache(addr, len); -+ if (!mmio) -+ goto out; -+ } -+ } else { -+ addr = bcma_get_cfgspace_addr(pc, dev, func, off); -+ if (unlikely(!addr)) -+ goto out; -+ err = -ENOMEM; -+ mmio = ioremap_nocache(addr, len); -+ if (!mmio) -+ goto out; -+ -+ if (mips_busprobe32(val, mmio)) { -+ val = 0xffffffff; -+ goto unmap; -+ } -+ } -+ -+ switch (len) { -+ case 1: -+ val = readl(mmio); -+ val &= ~(0xFF << (8 * (off & 3))); -+ val |= *((const u8 *)buf) << (8 * (off & 3)); -+ break; -+ case 2: -+ val = readl(mmio); -+ val &= ~(0xFFFF << (8 * (off & 3))); -+ val |= *((const u16 *)buf) << (8 * (off & 3)); -+ break; -+ case 4: -+ val = *((const u32 *)buf); -+ break; -+ } -+ if (dev == 0 && !addr) { -+ /* accesses to config registers with offsets >= 256 -+ * requires indirect access. -+ */ -+ addr = (func << 12); -+ addr |= (off & 0x0FFF); -+ bcma_pcie_write_config(pc, addr, val); -+ } else { -+ writel(val, mmio); -+ -+ if (chipid == 0x4716 || chipid == 0x4748) -+ readl(mmio); -+ } -+ -+ err = 0; -+unmap: -+ if (mmio) -+ iounmap(mmio); -+out: -+ return err; -+} -+ -+static int bcma_core_pci_hostmode_read_config(struct pci_bus *bus, -+ unsigned int devfn, -+ int reg, int size, u32 *val) -+{ -+ unsigned long flags; -+ int err; -+ struct bcma_drv_pci *pc; -+ struct bcma_drv_pci_host *pc_host; -+ -+ pc_host = container_of(bus->ops, struct bcma_drv_pci_host, pci_ops); -+ pc = pc_host->pdev; -+ -+ spin_lock_irqsave(&pc_host->cfgspace_lock, flags); -+ err = bcma_extpci_read_config(pc, PCI_SLOT(devfn), -+ PCI_FUNC(devfn), reg, val, size); -+ spin_unlock_irqrestore(&pc_host->cfgspace_lock, flags); -+ -+ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; -+} -+ -+static int bcma_core_pci_hostmode_write_config(struct pci_bus *bus, -+ unsigned int devfn, -+ int reg, int size, u32 val) -+{ -+ unsigned long flags; -+ int err; -+ struct bcma_drv_pci *pc; -+ struct bcma_drv_pci_host *pc_host; -+ -+ pc_host = container_of(bus->ops, struct bcma_drv_pci_host, pci_ops); -+ pc = pc_host->pdev; -+ -+ spin_lock_irqsave(&pc_host->cfgspace_lock, flags); -+ err = bcma_extpci_write_config(pc, PCI_SLOT(devfn), -+ PCI_FUNC(devfn), reg, &val, size); -+ spin_unlock_irqrestore(&pc_host->cfgspace_lock, flags); -+ -+ return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; -+} -+ -+/* return cap_offset if requested capability exists in the PCI config space */ -+static u8 __devinit bcma_find_pci_capability(struct bcma_drv_pci *pc, -+ unsigned int dev, -+ unsigned int func, u8 req_cap_id, -+ unsigned char *buf, u32 *buflen) -+{ -+ u8 cap_id; -+ u8 cap_ptr = 0; -+ u32 bufsize; -+ u8 byte_val; -+ -+ /* check for Header type 0 */ -+ bcma_extpci_read_config(pc, dev, func, PCI_HEADER_TYPE, &byte_val, -+ sizeof(u8)); -+ if ((byte_val & 0x7f) != PCI_HEADER_TYPE_NORMAL) -+ return cap_ptr; -+ -+ /* check if the capability pointer field exists */ -+ bcma_extpci_read_config(pc, dev, func, PCI_STATUS, &byte_val, -+ sizeof(u8)); -+ if (!(byte_val & PCI_STATUS_CAP_LIST)) -+ return cap_ptr; -+ -+ /* check if the capability pointer is 0x00 */ -+ bcma_extpci_read_config(pc, dev, func, PCI_CAPABILITY_LIST, &cap_ptr, -+ sizeof(u8)); -+ if (cap_ptr == 0x00) -+ return cap_ptr; -+ -+ /* loop thr'u the capability list and see if the requested capabilty -+ * exists */ -+ bcma_extpci_read_config(pc, dev, func, cap_ptr, &cap_id, sizeof(u8)); -+ while (cap_id != req_cap_id) { -+ bcma_extpci_read_config(pc, dev, func, cap_ptr + 1, &cap_ptr, -+ sizeof(u8)); -+ if (cap_ptr == 0x00) -+ return cap_ptr; -+ bcma_extpci_read_config(pc, dev, func, cap_ptr, &cap_id, -+ sizeof(u8)); -+ } -+ -+ /* found the caller requested capability */ -+ if ((buf != NULL) && (buflen != NULL)) { -+ u8 cap_data; -+ -+ bufsize = *buflen; -+ if (!bufsize) -+ return cap_ptr; -+ -+ *buflen = 0; -+ -+ /* copy the cpability data excluding cap ID and next ptr */ -+ cap_data = cap_ptr + 2; -+ if ((bufsize + cap_data) > PCI_CONFIG_SPACE_SIZE) -+ bufsize = PCI_CONFIG_SPACE_SIZE - cap_data; -+ *buflen = bufsize; -+ while (bufsize--) { -+ bcma_extpci_read_config(pc, dev, func, cap_data, buf, -+ sizeof(u8)); -+ cap_data++; -+ buf++; -+ } -+ } -+ -+ return cap_ptr; -+} -+ -+/* If the root port is capable of returning Config Request -+ * Retry Status (CRS) Completion Status to software then -+ * enable the feature. -+ */ -+static void __devinit bcma_core_pci_enable_crs(struct bcma_drv_pci *pc) -+{ -+ u8 cap_ptr, root_ctrl, root_cap, dev; -+ u16 val16; -+ int i; -+ -+ cap_ptr = bcma_find_pci_capability(pc, 0, 0, PCI_CAP_ID_EXP, NULL, -+ NULL); -+ root_cap = cap_ptr + PCI_EXP_RTCAP; -+ bcma_extpci_read_config(pc, 0, 0, root_cap, &val16, sizeof(u16)); -+ if (val16 & BCMA_CORE_PCI_RC_CRS_VISIBILITY) { -+ /* Enable CRS software visibility */ -+ root_ctrl = cap_ptr + PCI_EXP_RTCTL; -+ val16 = PCI_EXP_RTCTL_CRSSVE; -+ bcma_extpci_read_config(pc, 0, 0, root_ctrl, &val16, -+ sizeof(u16)); -+ -+ /* Initiate a configuration request to read the vendor id -+ * field of the device function's config space header after -+ * 100 ms wait time from the end of Reset. If the device is -+ * not done with its internal initialization, it must at -+ * least return a completion TLP, with a completion status -+ * of "Configuration Request Retry Status (CRS)". The root -+ * complex must complete the request to the host by returning -+ * a read-data value of 0001h for the Vendor ID field and -+ * all 1s for any additional bytes included in the request. -+ * Poll using the config reads for max wait time of 1 sec or -+ * until we receive the successful completion status. Repeat -+ * the procedure for all the devices. -+ */ -+ for (dev = 1; dev < BCMA_PCI_SLOT_MAX; dev++) { -+ for (i = 0; i < 100000; i++) { -+ bcma_extpci_read_config(pc, dev, 0, -+ PCI_VENDOR_ID, &val16, -+ sizeof(val16)); -+ if (val16 != 0x1) -+ break; -+ udelay(10); -+ } -+ if (val16 == 0x1) -+ pr_err("PCI: Broken device in slot %d\n", dev); -+ } -+ } -+} -+ -+void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc) -+{ -+ struct bcma_bus *bus = pc->core->bus; -+ struct bcma_drv_pci_host *pc_host; -+ u32 tmp; -+ u32 pci_membase_1G; -+ unsigned long io_map_base; -+ -+ pr_info("PCIEcore in host mode found\n"); -+ -+ pc_host = kzalloc(sizeof(*pc_host), GFP_KERNEL); -+ if (!pc_host) { -+ pr_err("can not allocate memory"); -+ return; -+ } -+ -+ pc->host_controller = pc_host; -+ pc_host->pci_controller.io_resource = &pc_host->io_resource; -+ pc_host->pci_controller.mem_resource = &pc_host->mem_resource; -+ pc_host->pci_controller.pci_ops = &pc_host->pci_ops; -+ pc_host->pdev = pc; -+ -+ pci_membase_1G = BCMA_SOC_PCI_DMA; -+ pc_host->host_cfg_addr = BCMA_SOC_PCI_CFG; -+ -+ pc_host->pci_ops.read = bcma_core_pci_hostmode_read_config; -+ pc_host->pci_ops.write = bcma_core_pci_hostmode_write_config; -+ -+ pc_host->mem_resource.name = "BCMA PCIcore external memory", -+ pc_host->mem_resource.start = BCMA_SOC_PCI_DMA; -+ pc_host->mem_resource.end = BCMA_SOC_PCI_DMA + BCMA_SOC_PCI_DMA_SZ - 1; -+ pc_host->mem_resource.flags = IORESOURCE_MEM | IORESOURCE_PCI_FIXED; -+ -+ pc_host->io_resource.name = "BCMA PCIcore external I/O", -+ pc_host->io_resource.start = 0x100; -+ pc_host->io_resource.end = 0x7FF; -+ pc_host->io_resource.flags = IORESOURCE_IO | IORESOURCE_PCI_FIXED; -+ -+ /* Reset RC */ -+ udelay(3000); -+ pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST_OE); -+ udelay(1000); -+ pcicore_write32(pc, BCMA_CORE_PCI_CTL, BCMA_CORE_PCI_CTL_RST | -+ BCMA_CORE_PCI_CTL_RST_OE); -+ -+ /* 64 MB I/O access window. On 4716, use -+ * sbtopcie0 to access the device registers. We -+ * can't use address match 2 (1 GB window) region -+ * as mips can't generate 64-bit address on the -+ * backplane. -+ */ -+ if (bus->chipinfo.id == 0x4716 || bus->chipinfo.id == 0x4748) { -+ pc_host->mem_resource.start = BCMA_SOC_PCI_MEM; -+ pc_host->mem_resource.end = BCMA_SOC_PCI_MEM + -+ BCMA_SOC_PCI_MEM_SZ - 1; -+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, -+ BCMA_CORE_PCI_SBTOPCI_MEM | BCMA_SOC_PCI_MEM); -+ } else if (bus->chipinfo.id == 0x5300) { -+ tmp = BCMA_CORE_PCI_SBTOPCI_MEM; -+ tmp |= BCMA_CORE_PCI_SBTOPCI_PREF; -+ tmp |= BCMA_CORE_PCI_SBTOPCI_BURST; -+ if (pc->core->core_unit == 0) { -+ pc_host->mem_resource.start = BCMA_SOC_PCI_MEM; -+ pc_host->mem_resource.end = BCMA_SOC_PCI_MEM + -+ BCMA_SOC_PCI_MEM_SZ - 1; -+ pci_membase_1G = BCMA_SOC_PCIE_DMA_H32; -+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, -+ tmp | BCMA_SOC_PCI_MEM); -+ } else if (pc->core->core_unit == 1) { -+ pc_host->mem_resource.start = BCMA_SOC_PCI1_MEM; -+ pc_host->mem_resource.end = BCMA_SOC_PCI1_MEM + -+ BCMA_SOC_PCI_MEM_SZ - 1; -+ pci_membase_1G = BCMA_SOC_PCIE1_DMA_H32; -+ pc_host->host_cfg_addr = BCMA_SOC_PCI1_CFG; -+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, -+ tmp | BCMA_SOC_PCI1_MEM); -+ } -+ } else -+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI0, -+ BCMA_CORE_PCI_SBTOPCI_IO); -+ -+ /* 64 MB configuration access window */ -+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI1, BCMA_CORE_PCI_SBTOPCI_CFG0); -+ -+ /* 1 GB memory access window */ -+ pcicore_write32(pc, BCMA_CORE_PCI_SBTOPCI2, -+ BCMA_CORE_PCI_SBTOPCI_MEM | pci_membase_1G); -+ -+ -+ /* As per PCI Express Base Spec 1.1 we need to wait for -+ * at least 100 ms from the end of a reset (cold/warm/hot) -+ * before issuing configuration requests to PCI Express -+ * devices. -+ */ -+ udelay(100000); -+ -+ bcma_core_pci_enable_crs(pc); -+ -+ /* Enable PCI bridge BAR0 memory & master access */ -+ tmp = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; -+ bcma_extpci_write_config(pc, 0, 0, PCI_COMMAND, &tmp, sizeof(tmp)); -+ -+ /* Enable PCI interrupts */ -+ pcicore_write32(pc, BCMA_CORE_PCI_IMASK, BCMA_CORE_PCI_IMASK_INTA); -+ -+ /* Ok, ready to run, register it to the system. -+ * The following needs change, if we want to port hostmode -+ * to non-MIPS platform. */ -+ io_map_base = (unsigned long)ioremap_nocache(BCMA_SOC_PCI_MEM, -+ 0x04000000); -+ pc_host->pci_controller.io_map_base = io_map_base; -+ set_io_port_base(pc_host->pci_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); -+ register_pci_controller(&pc_host->pci_controller); -+ return; -+} -+ -+/* Early PCI fixup for a device on the PCI-core bridge. */ -+static void bcma_core_pci_fixup_pcibridge(struct pci_dev *dev) -+{ -+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { -+ /* This is not a device on the PCI-core bridge. */ -+ return; -+ } -+ if (PCI_SLOT(dev->devfn) != 0) -+ return; -+ -+ pr_info("PCI: Fixing up bridge %s\n", pci_name(dev)); -+ -+ /* Enable PCI bridge bus mastering and memory space */ -+ pci_set_master(dev); -+ if (pcibios_enable_device(dev, ~0) < 0) { -+ pr_err("PCI: BCMA bridge enable failed\n"); -+ return; -+ } -+ -+ /* Enable PCI bridge BAR1 prefetch and burst */ -+ pci_write_config_dword(dev, BCMA_PCI_BAR1_CONTROL, 3); -+} -+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, bcma_core_pci_fixup_pcibridge); -+ -+/* Early PCI fixup for all PCI-cores to set the correct memory address. */ -+static void bcma_core_pci_fixup_addresses(struct pci_dev *dev) -+{ -+ struct resource *res; -+ int pos; -+ -+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { -+ /* This is not a device on the PCI-core bridge. */ -+ return; -+ } -+ if (PCI_SLOT(dev->devfn) == 0) -+ return; -+ -+ pr_info("PCI: Fixing up addresses %s\n", pci_name(dev)); -+ -+ for (pos = 0; pos < 6; pos++) { -+ res = &dev->resource[pos]; -+ if (res->flags & (IORESOURCE_IO | IORESOURCE_MEM)) -+ pci_assign_resource(dev, pos); -+ } -+} -+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, bcma_core_pci_fixup_addresses); -+ -+/* This function is called when doing a pci_enable_device(). -+ * We must first check if the device is a device on the PCI-core bridge. */ -+int bcma_core_pci_plat_dev_init(struct pci_dev *dev) -+{ -+ struct bcma_drv_pci_host *pc_host; -+ -+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { -+ /* This is not a device on the PCI-core bridge. */ -+ return -ENODEV; -+ } -+ pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host, -+ pci_ops); -+ -+ pr_info("PCI: Fixing up device %s\n", pci_name(dev)); -+ -+ /* Fix up interrupt lines */ -+ dev->irq = bcma_core_mips_irq(pc_host->pdev->core) + 2; -+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); -+ -+ return 0; -+} -+EXPORT_SYMBOL(bcma_core_pci_plat_dev_init); -+ -+/* PCI device IRQ mapping. */ -+int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev) -+{ -+ struct bcma_drv_pci_host *pc_host; -+ -+ if (dev->bus->ops->read != bcma_core_pci_hostmode_read_config) { -+ /* This is not a device on the PCI-core bridge. */ -+ return -ENODEV; -+ } -+ -+ pc_host = container_of(dev->bus->ops, struct bcma_drv_pci_host, -+ pci_ops); -+ return bcma_core_mips_irq(pc_host->pdev->core) + 2; -+} -+EXPORT_SYMBOL(bcma_core_pci_pcibios_map_irq); ---- /dev/null -+++ b/drivers/bcma/driver_mips.c -@@ -0,0 +1,256 @@ -+/* -+ * Broadcom specific AMBA -+ * Broadcom MIPS32 74K core driver -+ * -+ * Copyright 2009, Broadcom Corporation -+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> -+ * Copyright 2010, Bernhard Loos <bernhardloos@googlemail.com> -+ * Copyright 2011, Hauke Mehrtens <hauke@hauke-m.de> -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+ -+#include <linux/bcma/bcma.h> -+ -+#include <linux/serial.h> -+#include <linux/serial_core.h> -+#include <linux/serial_reg.h> -+#include <linux/time.h> -+ -+/* The 47162a0 hangs when reading MIPS DMP registers registers */ -+static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev) -+{ -+ return dev->bus->chipinfo.id == 47162 && dev->bus->chipinfo.rev == 0 && -+ dev->id.id == BCMA_CORE_MIPS_74K; -+} -+ -+/* The 5357b0 hangs when reading USB20H DMP registers */ -+static inline bool bcma_core_mips_bcm5357b0_quirk(struct bcma_device *dev) -+{ -+ return (dev->bus->chipinfo.id == 0x5357 || -+ dev->bus->chipinfo.id == 0x4749) && -+ dev->bus->chipinfo.pkg == 11 && -+ dev->id.id == BCMA_CORE_USB20_HOST; -+} -+ -+static inline u32 mips_read32(struct bcma_drv_mips *mcore, -+ u16 offset) -+{ -+ return bcma_read32(mcore->core, offset); -+} -+ -+static inline void mips_write32(struct bcma_drv_mips *mcore, -+ u16 offset, -+ u32 value) -+{ -+ bcma_write32(mcore->core, offset, value); -+} -+ -+static const u32 ipsflag_irq_mask[] = { -+ 0, -+ BCMA_MIPS_IPSFLAG_IRQ1, -+ BCMA_MIPS_IPSFLAG_IRQ2, -+ BCMA_MIPS_IPSFLAG_IRQ3, -+ BCMA_MIPS_IPSFLAG_IRQ4, -+}; -+ -+static const u32 ipsflag_irq_shift[] = { -+ 0, -+ BCMA_MIPS_IPSFLAG_IRQ1_SHIFT, -+ BCMA_MIPS_IPSFLAG_IRQ2_SHIFT, -+ BCMA_MIPS_IPSFLAG_IRQ3_SHIFT, -+ BCMA_MIPS_IPSFLAG_IRQ4_SHIFT, -+}; -+ -+static u32 bcma_core_mips_irqflag(struct bcma_device *dev) -+{ -+ u32 flag; -+ -+ if (bcma_core_mips_bcm47162a0_quirk(dev)) -+ return dev->core_index; -+ if (bcma_core_mips_bcm5357b0_quirk(dev)) -+ return dev->core_index; -+ flag = bcma_aread32(dev, BCMA_MIPS_OOBSELOUTA30); -+ -+ return flag & 0x1F; -+} -+ -+/* Get the MIPS IRQ assignment for a specified device. -+ * If unassigned, 0 is returned. -+ */ -+unsigned int bcma_core_mips_irq(struct bcma_device *dev) -+{ -+ struct bcma_device *mdev = dev->bus->drv_mips.core; -+ u32 irqflag; -+ unsigned int irq; -+ -+ irqflag = bcma_core_mips_irqflag(dev); -+ -+ for (irq = 1; irq <= 4; irq++) -+ if (bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq)) & -+ (1 << irqflag)) -+ return irq; -+ -+ return 0; -+} -+EXPORT_SYMBOL(bcma_core_mips_irq); -+ -+static void bcma_core_mips_set_irq(struct bcma_device *dev, unsigned int irq) -+{ -+ unsigned int oldirq = bcma_core_mips_irq(dev); -+ struct bcma_bus *bus = dev->bus; -+ struct bcma_device *mdev = bus->drv_mips.core; -+ u32 irqflag; -+ -+ irqflag = bcma_core_mips_irqflag(dev); -+ BUG_ON(oldirq == 6); -+ -+ dev->irq = irq + 2; -+ -+ /* clear the old irq */ -+ if (oldirq == 0) -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0), -+ bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) & -+ ~(1 << irqflag)); -+ else -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq), 0); -+ -+ /* assign the new one */ -+ if (irq == 0) { -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0), -+ bcma_read32(mdev, BCMA_MIPS_MIPS74K_INTMASK(0)) | -+ (1 << irqflag)); -+ } else { -+ u32 oldirqflag = bcma_read32(mdev, -+ BCMA_MIPS_MIPS74K_INTMASK(irq)); -+ if (oldirqflag) { -+ struct bcma_device *core; -+ -+ /* backplane irq line is in use, find out who uses -+ * it and set user to irq 0 -+ */ -+ list_for_each_entry_reverse(core, &bus->cores, list) { -+ if ((1 << bcma_core_mips_irqflag(core)) == -+ oldirqflag) { -+ bcma_core_mips_set_irq(core, 0); -+ break; -+ } -+ } -+ } -+ bcma_write32(mdev, BCMA_MIPS_MIPS74K_INTMASK(irq), -+ 1 << irqflag); -+ } -+ -+ pr_info("set_irq: core 0x%04x, irq %d => %d\n", -+ dev->id.id, oldirq + 2, irq + 2); -+} -+ -+static void bcma_core_mips_print_irq(struct bcma_device *dev, unsigned int irq) -+{ -+ int i; -+ static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"}; -+ printk(KERN_INFO KBUILD_MODNAME ": core 0x%04x, irq :", dev->id.id); -+ for (i = 0; i <= 6; i++) -+ printk(" %s%s", irq_name[i], i == irq ? "*" : " "); -+ printk("\n"); -+} -+ -+static void bcma_core_mips_dump_irq(struct bcma_bus *bus) -+{ -+ struct bcma_device *core; -+ -+ list_for_each_entry_reverse(core, &bus->cores, list) { -+ bcma_core_mips_print_irq(core, bcma_core_mips_irq(core)); -+ } -+} -+ -+u32 bcma_cpu_clock(struct bcma_drv_mips *mcore) -+{ -+ struct bcma_bus *bus = mcore->core->bus; -+ -+ if (bus->drv_cc.capabilities & BCMA_CC_CAP_PMU) -+ return bcma_pmu_get_clockcpu(&bus->drv_cc); -+ -+ pr_err("No PMU available, need this to get the cpu clock\n"); -+ return 0; -+} -+EXPORT_SYMBOL(bcma_cpu_clock); -+ -+static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore) -+{ -+ struct bcma_bus *bus = mcore->core->bus; -+ -+ switch (bus->drv_cc.capabilities & BCMA_CC_CAP_FLASHT) { -+ case BCMA_CC_FLASHT_STSER: -+ case BCMA_CC_FLASHT_ATSER: -+ pr_err("Serial flash not supported.\n"); -+ break; -+ case BCMA_CC_FLASHT_PARA: -+ pr_info("found parallel flash.\n"); -+ bus->drv_cc.pflash.window = 0x1c000000; -+ bus->drv_cc.pflash.window_size = 0x02000000; -+ -+ if ((bcma_read32(bus->drv_cc.core, BCMA_CC_FLASH_CFG) & -+ BCMA_CC_FLASH_CFG_DS) == 0) -+ bus->drv_cc.pflash.buswidth = 1; -+ else -+ bus->drv_cc.pflash.buswidth = 2; -+ break; -+ default: -+ pr_err("flash not supported.\n"); -+ } -+} -+ -+void bcma_core_mips_init(struct bcma_drv_mips *mcore) -+{ -+ struct bcma_bus *bus; -+ struct bcma_device *core; -+ bus = mcore->core->bus; -+ -+ pr_info("Initializing MIPS core...\n"); -+ -+ if (!mcore->setup_done) -+ mcore->assigned_irqs = 1; -+ -+ /* Assign IRQs to all cores on the bus */ -+ list_for_each_entry_reverse(core, &bus->cores, list) { -+ int mips_irq; -+ if (core->irq) -+ continue; -+ -+ mips_irq = bcma_core_mips_irq(core); -+ if (mips_irq > 4) -+ core->irq = 0; -+ else -+ core->irq = mips_irq + 2; -+ if (core->irq > 5) -+ continue; -+ switch (core->id.id) { -+ case BCMA_CORE_PCI: -+ case BCMA_CORE_PCIE: -+ case BCMA_CORE_ETHERNET: -+ case BCMA_CORE_ETHERNET_GBIT: -+ case BCMA_CORE_MAC_GBIT: -+ case BCMA_CORE_80211: -+ case BCMA_CORE_USB20_HOST: -+ /* These devices get their own IRQ line if available, -+ * the rest goes on IRQ0 -+ */ -+ if (mcore->assigned_irqs <= 4) -+ bcma_core_mips_set_irq(core, -+ mcore->assigned_irqs++); -+ break; -+ } -+ } -+ pr_info("IRQ reconfiguration done\n"); -+ bcma_core_mips_dump_irq(bus); -+ -+ if (mcore->setup_done) -+ return; -+ -+ bcma_chipco_serial_init(&bus->drv_cc); -+ bcma_core_mips_flash_detect(mcore); -+ mcore->setup_done = true; -+} ---- /dev/null -+++ b/drivers/bcma/host_soc.c -@@ -0,0 +1,183 @@ -+/* -+ * Broadcom specific AMBA -+ * System on Chip (SoC) Host -+ * -+ * Licensed under the GNU/GPL. See COPYING for details. -+ */ -+ -+#include "bcma_private.h" -+#include "scan.h" -+#include <linux/bcma/bcma.h> -+#include <linux/bcma/bcma_soc.h> -+ -+static u8 bcma_host_soc_read8(struct bcma_device *core, u16 offset) -+{ -+ return readb(core->io_addr + offset); -+} -+ -+static u16 bcma_host_soc_read16(struct bcma_device *core, u16 offset) -+{ -+ return readw(core->io_addr + offset); -+} -+ -+static u32 bcma_host_soc_read32(struct bcma_device *core, u16 offset) -+{ -+ return readl(core->io_addr + offset); -+} -+ -+static void bcma_host_soc_write8(struct bcma_device *core, u16 offset, -+ u8 value) -+{ -+ writeb(value, core->io_addr + offset); -+} -+ -+static void bcma_host_soc_write16(struct bcma_device *core, u16 offset, -+ u16 value) -+{ -+ writew(value, core->io_addr + offset); -+} -+ -+static void bcma_host_soc_write32(struct bcma_device *core, u16 offset, -+ u32 value) -+{ -+ writel(value, core->io_addr + offset); -+} -+ -+#ifdef CONFIG_BCMA_BLOCKIO -+static void bcma_host_soc_block_read(struct bcma_device *core, void *buffer, -+ size_t count, u16 offset, u8 reg_width) -+{ -+ void __iomem *addr = core->io_addr + offset; -+ -+ switch (reg_width) { -+ case sizeof(u8): { -+ u8 *buf = buffer; -+ -+ while (count) { -+ *buf = __raw_readb(addr); -+ buf++; -+ count--; -+ } -+ break; -+ } -+ case sizeof(u16): { -+ __le16 *buf = buffer; -+ -+ WARN_ON(count & 1); -+ while (count) { -+ *buf = (__force __le16)__raw_readw(addr); -+ buf++; -+ count -= 2; -+ } -+ break; -+ } -+ case sizeof(u32): { -+ __le32 *buf = buffer; -+ -+ WARN_ON(count & 3); -+ while (count) { -+ *buf = (__force __le32)__raw_readl(addr); -+ buf++; -+ count -= 4; -+ } -+ break; -+ } -+ default: -+ WARN_ON(1); -+ } -+} -+ -+static void bcma_host_soc_block_write(struct bcma_device *core, -+ const void *buffer, -+ size_t count, u16 offset, u8 reg_width) -+{ -+ void __iomem *addr = core->io_addr + offset; -+ -+ switch (reg_width) { -+ case sizeof(u8): { -+ const u8 *buf = buffer; -+ -+ while (count) { -+ __raw_writeb(*buf, addr); -+ buf++; -+ count--; -+ } -+ break; -+ } -+ case sizeof(u16): { -+ const __le16 *buf = buffer; -+ -+ WARN_ON(count & 1); -+ while (count) { -+ __raw_writew((__force u16)(*buf), addr); -+ buf++; -+ count -= 2; -+ } -+ break; -+ } -+ case sizeof(u32): { -+ const __le32 *buf = buffer; -+ -+ WARN_ON(count & 3); -+ while (count) { -+ __raw_writel((__force u32)(*buf), addr); -+ buf++; -+ count -= 4; -+ } -+ break; -+ } -+ default: -+ WARN_ON(1); -+ } -+} -+#endif /* CONFIG_BCMA_BLOCKIO */ -+ -+static u32 bcma_host_soc_aread32(struct bcma_device *core, u16 offset) -+{ -+ return readl(core->io_wrap + offset); -+} -+ -+static void bcma_host_soc_awrite32(struct bcma_device *core, u16 offset, -+ u32 value) -+{ -+ writel(value, core->io_wrap + offset); -+} -+ -+const struct bcma_host_ops bcma_host_soc_ops = { -+ .read8 = bcma_host_soc_read8, -+ .read16 = bcma_host_soc_read16, -+ .read32 = bcma_host_soc_read32, -+ .write8 = bcma_host_soc_write8, -+ .write16 = bcma_host_soc_write16, -+ .write32 = bcma_host_soc_write32, -+#ifdef CONFIG_BCMA_BLOCKIO -+ .block_read = bcma_host_soc_block_read, -+ .block_write = bcma_host_soc_block_write, -+#endif -+ .aread32 = bcma_host_soc_aread32, -+ .awrite32 = bcma_host_soc_awrite32, -+}; -+ -+int __init bcma_host_soc_register(struct bcma_soc *soc) -+{ -+ struct bcma_bus *bus = &soc->bus; -+ int err; -+ -+ /* iomap only first core. We have to read some register on this core -+ * to scan the bus. -+ */ -+ bus->mmio = ioremap_nocache(BCMA_ADDR_BASE, BCMA_CORE_SIZE * 1); -+ if (!bus->mmio) -+ return -ENOMEM; -+ -+ /* Host specific */ -+ bus->hosttype = BCMA_HOSTTYPE_SOC; -+ bus->ops = &bcma_host_soc_ops; -+ -+ /* Register */ -+ err = bcma_bus_early_register(bus, &soc->core_cc, &soc->core_mips); -+ if (err) -+ iounmap(bus->mmio); -+ -+ return err; -+} ---- /dev/null -+++ b/include/linux/bcma/bcma_driver_mips.h -@@ -0,0 +1,51 @@ -+#ifndef LINUX_BCMA_DRIVER_MIPS_H_ -+#define LINUX_BCMA_DRIVER_MIPS_H_ -+ -+#define BCMA_MIPS_IPSFLAG 0x0F08 -+/* which sbflags get routed to mips interrupt 1 */ -+#define BCMA_MIPS_IPSFLAG_IRQ1 0x0000003F -+#define BCMA_MIPS_IPSFLAG_IRQ1_SHIFT 0 -+/* which sbflags get routed to mips interrupt 2 */ -+#define BCMA_MIPS_IPSFLAG_IRQ2 0x00003F00 -+#define BCMA_MIPS_IPSFLAG_IRQ2_SHIFT 8 -+/* which sbflags get routed to mips interrupt 3 */ -+#define BCMA_MIPS_IPSFLAG_IRQ3 0x003F0000 -+#define BCMA_MIPS_IPSFLAG_IRQ3_SHIFT 16 -+/* which sbflags get routed to mips interrupt 4 */ -+#define BCMA_MIPS_IPSFLAG_IRQ4 0x3F000000 -+#define BCMA_MIPS_IPSFLAG_IRQ4_SHIFT 24 -+ -+/* MIPS 74K core registers */ -+#define BCMA_MIPS_MIPS74K_CORECTL 0x0000 -+#define BCMA_MIPS_MIPS74K_EXCEPTBASE 0x0004 -+#define BCMA_MIPS_MIPS74K_BIST 0x000C -+#define BCMA_MIPS_MIPS74K_INTMASK_INT0 0x0014 -+#define BCMA_MIPS_MIPS74K_INTMASK(int) \ -+ ((int) * 4 + BCMA_MIPS_MIPS74K_INTMASK_INT0) -+#define BCMA_MIPS_MIPS74K_NMIMASK 0x002C -+#define BCMA_MIPS_MIPS74K_GPIOSEL 0x0040 -+#define BCMA_MIPS_MIPS74K_GPIOOUT 0x0044 -+#define BCMA_MIPS_MIPS74K_GPIOEN 0x0048 -+#define BCMA_MIPS_MIPS74K_CLKCTLST 0x01E0 -+ -+#define BCMA_MIPS_OOBSELOUTA30 0x100 -+ -+struct bcma_device; -+ -+struct bcma_drv_mips { -+ struct bcma_device *core; -+ u8 setup_done:1; -+ unsigned int assigned_irqs; -+}; -+ -+#ifdef CONFIG_BCMA_DRIVER_MIPS -+extern void bcma_core_mips_init(struct bcma_drv_mips *mcore); -+#else -+static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { } -+#endif -+ -+extern u32 bcma_cpu_clock(struct bcma_drv_mips *mcore); -+ -+extern unsigned int bcma_core_mips_irq(struct bcma_device *dev); -+ -+#endif /* LINUX_BCMA_DRIVER_MIPS_H_ */ ---- /dev/null -+++ b/include/linux/bcma/bcma_soc.h -@@ -0,0 +1,16 @@ -+#ifndef LINUX_BCMA_SOC_H_ -+#define LINUX_BCMA_SOC_H_ -+ -+#include <linux/bcma/bcma.h> -+ -+struct bcma_soc { -+ struct bcma_bus bus; -+ struct bcma_device core_cc; -+ struct bcma_device core_mips; -+}; -+ -+int __init bcma_host_soc_register(struct bcma_soc *soc); -+ -+int bcma_bus_register(struct bcma_bus *bus); -+ -+#endif /* LINUX_BCMA_SOC_H_ */ diff --git a/target/linux/generic/patches-2.6.38/100-overlayfs.patch b/target/linux/generic/patches-2.6.38/100-overlayfs.patch deleted file mode 100644 index d526865a08..0000000000 --- a/target/linux/generic/patches-2.6.38/100-overlayfs.patch +++ /dev/null @@ -1,2787 +0,0 @@ ---- /dev/null -+++ b/Documentation/filesystems/overlayfs.txt -@@ -0,0 +1,163 @@ -+Written by: Neil Brown <neilb@suse.de> -+ -+Overlay Filesystem -+================== -+ -+This document describes a prototype for a new approach to providing -+overlay-filesystem functionality in Linux (sometimes referred to as -+union-filesystems). An overlay-filesystem tries to present a -+filesystem which is the result over overlaying one filesystem on top -+of the other. -+ -+The result will inevitably fail to look exactly like a normal -+filesystem for various technical reasons. The expectation is that -+many use cases will be able to ignore these differences. -+ -+This approach is 'hybrid' because the objects that appear in the -+filesystem do not all appear to belong to that filesystem. In many -+case an object accessed in the union will be indistinguishable -+from accessing the corresponding object from the original filesystem. -+This is most obvious from the 'st_dev' field returned by stat(2). -+ -+While directories will report an st_dev for the overlay-filesystem, -+all non-directory objects will report an st_dev whichever of the -+'lower' or 'upper' filesystem that is providing the object. Similarly -+st_ino will only be unique when combined with st_dev, and both of -+these can change over the lifetime of a non-directory object. Many -+applications and tools ignore these values and will not be affected. -+ -+Upper and Lower -+--------------- -+ -+An overlay filesystem combines two filesystems - an 'upper' filesystem -+and a 'lower' filesystem. When a name exists in both filesystems, the -+object in the 'upper' filesystem is visible while the object in the -+'lower' filesystem is either hidden or, in the case of directories, -+merged with the 'upper' object. -+ -+It would be more correct to refer to an upper and lower 'directory -+tree' rather than 'filesystem' as it is quite possible for both -+directory trees to be in the same filesystem and there is no -+requirement that the root of a filesystem be given for either upper or -+lower. -+ -+The lower filesystem can be any filesystem supported by Linux and does -+not need to be writable. The lower filesystem can even be another -+overlayfs. The upper filesystem will normally be writable and if it -+is it must support the creation of trusted.* extended attributes, and -+must provide valid d_type in readdir responses, at least for symbolic -+links - so NFS is not suitable. -+ -+A read-only overlay of two read-only filesystems may use any -+filesystem type. -+ -+Directories -+----------- -+ -+Overlaying mainly involved directories. If a given name appears in both -+upper and lower filesystems and refers to a non-directory in either, -+then the lower object is hidden - the name refers only to the upper -+object. -+ -+Where both upper and lower objects are directories, a merged directory -+is formed. -+ -+At mount time, the two directories given as mount options are combined -+into a merged directory. Then whenever a lookup is requested in such -+a merged directory, the lookup is performed in each actual directory -+and the combined result is cached in the dentry belonging to the overlay -+filesystem. If both actual lookups find directories, both are stored -+and a merged directory is created, otherwise only one is stored: the -+upper if it exists, else the lower. -+ -+Only the lists of names from directories are merged. Other content -+such as metadata and extended attributes are reported for the upper -+directory only. These attributes of the lower directory are hidden. -+ -+whiteouts and opaque directories -+-------------------------------- -+ -+In order to support rm and rmdir without changing the lower -+filesystem, an overlay filesystem needs to record in the upper filesystem -+that files have been removed. This is done using whiteouts and opaque -+directories (non-directories are always opaque). -+ -+The overlay filesystem uses extended attributes with a -+"trusted.overlay." prefix to record these details. -+ -+A whiteout is created as a symbolic link with target -+"(overlay-whiteout)" and with xattr "trusted.overlay.whiteout" set to "y". -+When a whiteout is found in the upper level of a merged directory, any -+matching name in the lower level is ignored, and the whiteout itself -+is also hidden. -+ -+A directory is made opaque by setting the xattr "trusted.overlay.opaque" -+to "y". Where the upper filesystem contains an opaque directory, any -+directory in the lower filesystem with the same name is ignored. -+ -+readdir -+------- -+ -+When a 'readdir' request is made on a merged directory, the upper and -+lower directories are each read and the name lists merged in the -+obvious way (upper is read first, then lower - entries that already -+exist are not re-added). This merged name list is cached in the -+'struct file' and so remains as long as the file is kept open. If the -+directory is opened and read by two processes at the same time, they -+will each have separate caches. A seekdir to the start of the -+directory (offset 0) followed by a readdir will cause the cache to be -+discarded and rebuilt. -+ -+This means that changes to the merged directory do not appear while a -+directory is being read. This is unlikely to be noticed by many -+programs. -+ -+seek offsets are assigned sequentially when the directories are read. -+Thus if -+ - read part of a directory -+ - remember an offset, and close the directory -+ - re-open the directory some time later -+ - seek to the remembered offset -+ -+there may be little correlation between the old and new locations in -+the list of filenames, particularly if anything has changed in the -+directory. -+ -+Readdir on directories that are not merged is simply handled by the -+underlying directory (upper or lower). -+ -+ -+Non-directories -+--------------- -+ -+Objects that are not directories (files, symlinks, device-special -+files etc) are presented either from the upper or lower filesystem as -+appropriate. When a file in the lower filesystem is accessed in a way -+the requires write-access; such as opening for write access, changing -+some metadata etc, the file is first copied from the lower filesystem -+to the upper filesystem (copy_up). Note that creating a hard-link -+also requires copy-up, though of course creation of a symlink does -+not. -+ -+The copy_up process first makes sure that the containing directory -+exists in the upper filesystem - creating it and any parents as -+necessary. It then creates the object with the same metadata (owner, -+mode, mtime, symlink-target etc) and then if the object is a file, the -+data is copied from the lower to the upper filesystem. Finally any -+extended attributes are copied up. -+ -+Once the copy_up is complete, the overlay filesystem simply -+provides direct access to the newly created file in the upper -+filesystem - future operations on the file are barely noticed by the -+overlay filesystem (though an operation on the name of the file such as -+rename or unlink will of course be noticed and handled). -+ -+Changes to underlying filesystems -+--------------------------------- -+ -+Offline changes, when the overlay is not mounted, are allowed to either -+the upper or the lower trees. -+ -+Changes to the underlying filesystems while part of a mounted overlay -+filesystem are not allowed. This is not yet enforced, but will be in -+the future. ---- a/fs/Kconfig -+++ b/fs/Kconfig -@@ -63,6 +63,7 @@ source "fs/quota/Kconfig" - - source "fs/autofs4/Kconfig" - source "fs/fuse/Kconfig" -+source "fs/overlayfs/Kconfig" - - config CUSE - tristate "Character device in Userspace support" ---- a/fs/Makefile -+++ b/fs/Makefile -@@ -103,6 +103,7 @@ obj-$(CONFIG_QNX4FS_FS) += qnx4/ - obj-$(CONFIG_AUTOFS4_FS) += autofs4/ - obj-$(CONFIG_ADFS_FS) += adfs/ - obj-$(CONFIG_FUSE_FS) += fuse/ -+obj-$(CONFIG_OVERLAYFS_FS) += overlayfs/ - obj-$(CONFIG_UDF_FS) += udf/ - obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/ - obj-$(CONFIG_OMFS_FS) += omfs/ ---- a/fs/namespace.c -+++ b/fs/namespace.c -@@ -1451,6 +1451,23 @@ void drop_collected_mounts(struct vfsmou - release_mounts(&umount_list); - } - -+struct vfsmount *clone_private_mount(struct path *path) -+{ -+ struct vfsmount *mnt; -+ -+ if (IS_MNT_UNBINDABLE(path->mnt)) -+ return ERR_PTR(-EINVAL); -+ -+ down_read(&namespace_sem); -+ mnt = clone_mnt(path->mnt, path->dentry, CL_PRIVATE); -+ up_read(&namespace_sem); -+ if (!mnt) -+ return ERR_PTR(-ENOMEM); -+ -+ return mnt; -+} -+EXPORT_SYMBOL_GPL(clone_private_mount); -+ - int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg, - struct vfsmount *root) - { ---- a/fs/open.c -+++ b/fs/open.c -@@ -664,19 +664,19 @@ static inline int __get_file_write_acces - return error; - } - --static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt, -- struct file *f, -+static struct file *__dentry_open(struct path *path, struct file *f, - int (*open)(struct inode *, struct file *), - const struct cred *cred) - { - struct inode *inode; - int error; - -+ path_get(path); - f->f_mode = OPEN_FMODE(f->f_flags) | FMODE_LSEEK | - FMODE_PREAD | FMODE_PWRITE; -- inode = dentry->d_inode; -+ inode = path->dentry->d_inode; - if (f->f_mode & FMODE_WRITE) { -- error = __get_file_write_access(inode, mnt); -+ error = __get_file_write_access(inode, path->mnt); - if (error) - goto cleanup_file; - if (!special_file(inode->i_mode)) -@@ -684,8 +684,7 @@ static struct file *__dentry_open(struct - } - - f->f_mapping = inode->i_mapping; -- f->f_path.dentry = dentry; -- f->f_path.mnt = mnt; -+ f->f_path = *path; - f->f_pos = 0; - f->f_op = fops_get(inode->i_fop); - file_sb_list_add(f, inode->i_sb); -@@ -731,7 +730,7 @@ cleanup_all: - * here, so just reset the state. - */ - file_reset_write(f); -- mnt_drop_write(mnt); -+ mnt_drop_write(path->mnt); - } - } - file_sb_list_del(f); -@@ -739,8 +738,7 @@ cleanup_all: - f->f_path.mnt = NULL; - cleanup_file: - put_filp(f); -- dput(dentry); -- mntput(mnt); -+ path_put(path); - return ERR_PTR(error); - } - -@@ -766,14 +764,14 @@ cleanup_file: - struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry, - int (*open)(struct inode *, struct file *)) - { -+ struct path path = { .dentry = dentry, .mnt = nd->path.mnt }; - const struct cred *cred = current_cred(); - - if (IS_ERR(nd->intent.open.file)) - goto out; - if (IS_ERR(dentry)) - goto out_err; -- nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->path.mnt), -- nd->intent.open.file, -+ nd->intent.open.file = __dentry_open(&path, nd->intent.open.file, - open, cred); - out: - return nd->intent.open.file; -@@ -802,10 +800,17 @@ struct file *nameidata_to_filp(struct na - - /* Has the filesystem initialised the file for us? */ - if (filp->f_path.dentry == NULL) { -- path_get(&nd->path); -- filp = __dentry_open(nd->path.dentry, nd->path.mnt, filp, -- NULL, cred); -+ struct inode *inode = nd->path.dentry->d_inode; -+ -+ if (inode->i_op->open) { -+ int flags = filp->f_flags; -+ put_filp(filp); -+ filp = inode->i_op->open(nd->path.dentry, flags, cred); -+ } else { -+ filp = __dentry_open(&nd->path, filp, NULL, cred); -+ } - } -+ - return filp; - } - -@@ -816,35 +821,45 @@ struct file *nameidata_to_filp(struct na - struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags, - const struct cred *cred) - { -- int error; -+ struct path path = { .dentry = dentry, .mnt = mnt }; -+ struct file *ret; -+ -+ BUG_ON(!mnt); -+ -+ ret = vfs_open(&path, flags, cred); -+ path_put(&path); -+ -+ return ret; -+} -+EXPORT_SYMBOL(dentry_open); -+ -+/** -+ * vfs_open - open the file at the given path -+ * @path: path to open -+ * @flags: open flags -+ * @cred: credentials to use -+ * -+ * Open the file. If successful, the returned file will have acquired -+ * an additional reference for path. -+ */ -+struct file *vfs_open(struct path *path, int flags, const struct cred *cred) -+{ - struct file *f; -+ struct inode *inode = path->dentry->d_inode; - - validate_creds(cred); - -- /* -- * We must always pass in a valid mount pointer. Historically -- * callers got away with not passing it, but we must enforce this at -- * the earliest possible point now to avoid strange problems deep in the -- * filesystem stack. -- */ -- if (!mnt) { -- printk(KERN_WARNING "%s called with NULL vfsmount\n", __func__); -- dump_stack(); -- return ERR_PTR(-EINVAL); -- } -+ if (inode->i_op->open) -+ return inode->i_op->open(path->dentry, flags, cred); - -- error = -ENFILE; - f = get_empty_filp(); -- if (f == NULL) { -- dput(dentry); -- mntput(mnt); -- return ERR_PTR(error); -- } -+ if (f == NULL) -+ return ERR_PTR(-ENFILE); - - f->f_flags = flags; -- return __dentry_open(dentry, mnt, f, NULL, cred); -+ return __dentry_open(path, f, NULL, cred); - } --EXPORT_SYMBOL(dentry_open); -+EXPORT_SYMBOL(vfs_open); - - static void __put_unused_fd(struct files_struct *files, unsigned int fd) - { ---- /dev/null -+++ b/fs/overlayfs/Kconfig -@@ -0,0 +1,4 @@ -+config OVERLAYFS_FS -+ tristate "Overlay filesystem support" -+ help -+ Add support for overlay filesystem. ---- /dev/null -+++ b/fs/overlayfs/Makefile -@@ -0,0 +1,5 @@ -+# -+# Makefile for the overlay filesystem. -+# -+ -+obj-$(CONFIG_OVERLAYFS_FS) += overlayfs.o ---- /dev/null -+++ b/fs/overlayfs/overlayfs.c -@@ -0,0 +1,2358 @@ -+#include <linux/fs.h> -+#include <linux/namei.h> -+#include <linux/sched.h> -+#include <linux/fs_struct.h> -+#include <linux/file.h> -+#include <linux/xattr.h> -+#include <linux/security.h> -+#include <linux/device_cgroup.h> -+#include <linux/mount.h> -+#include <linux/splice.h> -+#include <linux/slab.h> -+#include <linux/parser.h> -+#include <linux/module.h> -+#include <linux/uaccess.h> -+#include <linux/rbtree.h> -+ -+MODULE_AUTHOR("Miklos Szeredi <miklos@szeredi.hu>"); -+MODULE_DESCRIPTION("Overlay filesystem"); -+MODULE_LICENSE("GPL"); -+ -+#define OVL_COPY_UP_CHUNK_SIZE (1 << 20) -+ -+struct ovl_fs { -+ struct vfsmount *upper_mnt; -+ struct vfsmount *lower_mnt; -+}; -+ -+struct ovl_entry { -+ struct dentry *__upperdentry; -+ struct dentry *lowerdentry; -+ union { -+ struct { -+ u64 version; -+ bool opaque; -+ }; -+ struct rcu_head rcu; -+ }; -+}; -+ -+static const char *ovl_whiteout_xattr = "trusted.overlay.whiteout"; -+static const char *ovl_opaque_xattr = "trusted.overlay.opaque"; -+static const char *ovl_whiteout_symlink = "(overlay-whiteout)"; -+ -+enum ovl_path_type { -+ OVL_PATH_UPPER, -+ OVL_PATH_MERGE, -+ OVL_PATH_LOWER, -+}; -+ -+static enum ovl_path_type ovl_path_type(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ if (oe->__upperdentry) { -+ if (oe->lowerdentry && S_ISDIR(dentry->d_inode->i_mode)) -+ return OVL_PATH_MERGE; -+ else -+ return OVL_PATH_UPPER; -+ } else { -+ return OVL_PATH_LOWER; -+ } -+} -+ -+static struct dentry *ovl_upperdentry_dereference(struct ovl_entry *oe) -+{ -+ struct dentry *upperdentry = ACCESS_ONCE(oe->__upperdentry); -+ smp_read_barrier_depends(); -+ return upperdentry; -+} -+ -+static void ovl_path_upper(struct dentry *dentry, struct path *path) -+{ -+ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ path->mnt = ofs->upper_mnt; -+ path->dentry = ovl_upperdentry_dereference(oe); -+} -+ -+static void ovl_path_lower(struct dentry *dentry, struct path *path) -+{ -+ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ path->mnt = ofs->lower_mnt; -+ path->dentry = oe->lowerdentry; -+} -+ -+static enum ovl_path_type ovl_path_real(struct dentry *dentry, -+ struct path *path) -+{ -+ -+ enum ovl_path_type type = ovl_path_type(dentry); -+ -+ if (type == OVL_PATH_LOWER) -+ ovl_path_lower(dentry, path); -+ else -+ ovl_path_upper(dentry, path); -+ -+ return type; -+} -+ -+static struct dentry *ovl_dentry_upper(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ return ovl_upperdentry_dereference(oe); -+} -+ -+static struct dentry *ovl_dentry_lower(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ return oe->lowerdentry; -+} -+ -+static struct dentry *ovl_dentry_real(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ struct dentry *realdentry; -+ -+ realdentry = ovl_upperdentry_dereference(oe); -+ if (!realdentry) -+ realdentry = oe->lowerdentry; -+ -+ return realdentry; -+} -+ -+static bool ovl_dentry_is_opaque(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ return oe->opaque; -+} -+ -+static void ovl_dentry_set_opaque(struct dentry *dentry, bool opaque) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ oe->opaque = opaque; -+} -+ -+static void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ WARN_ON(!mutex_is_locked(&upperdentry->d_parent->d_inode->i_mutex)); -+ WARN_ON(oe->__upperdentry); -+ smp_wmb(); -+ oe->__upperdentry = upperdentry; -+} -+ -+static void ovl_dentry_version_inc(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ WARN_ON(!mutex_is_locked(&dentry->d_inode->i_mutex)); -+ oe->version++; -+} -+ -+static u64 ovl_dentry_version_get(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ WARN_ON(!mutex_is_locked(&dentry->d_inode->i_mutex)); -+ return oe->version; -+} -+ -+static bool ovl_is_whiteout(struct dentry *dentry) -+{ -+ int res; -+ char val; -+ -+ if (!dentry) -+ return false; -+ if (!dentry->d_inode) -+ return false; -+ if (!S_ISLNK(dentry->d_inode->i_mode)) -+ return false; -+ -+ res = vfs_getxattr(dentry, ovl_whiteout_xattr, &val, 1); -+ if (res == 1 && val == 'y') -+ return true; -+ -+ return false; -+} -+ -+static bool ovl_is_opaquedir(struct dentry *dentry) -+{ -+ int res; -+ char val; -+ -+ if (!S_ISDIR(dentry->d_inode->i_mode)) -+ return false; -+ -+ res = vfs_getxattr(dentry, ovl_opaque_xattr, &val, 1); -+ if (res == 1 && val == 'y') -+ return true; -+ -+ return false; -+} -+ -+struct ovl_cache_entry { -+ const char *name; -+ unsigned int len; -+ unsigned int type; -+ u64 ino; -+ bool is_whiteout; -+ struct list_head l_node; -+ struct rb_node node; -+}; -+ -+struct ovl_readdir_data { -+ struct rb_root *root; -+ struct list_head *list; -+ struct list_head *middle; -+ struct dentry *dir; -+ int count; -+ int err; -+}; -+ -+struct ovl_dir_file { -+ bool is_real; -+ bool is_cached; -+ struct list_head cursor; -+ u64 cache_version; -+ struct list_head cache; -+ struct file *realfile; -+}; -+ -+static struct ovl_cache_entry *ovl_cache_entry_from_node(struct rb_node *n) -+{ -+ return container_of(n, struct ovl_cache_entry, node); -+} -+ -+static struct ovl_cache_entry *ovl_cache_entry_find(struct rb_root *root, -+ const char *name, int len) -+{ -+ struct rb_node *node = root->rb_node; -+ int cmp; -+ -+ while (node) { -+ struct ovl_cache_entry *p = ovl_cache_entry_from_node(node); -+ -+ cmp = strncmp(name, p->name, len); -+ if (cmp > 0) -+ node = p->node.rb_right; -+ else if (cmp < 0 || len < p->len) -+ node = p->node.rb_left; -+ else -+ return p; -+ } -+ -+ return NULL; -+} -+ -+static struct ovl_cache_entry *ovl_cache_entry_new(const char *name, int len, -+ u64 ino, unsigned int d_type, -+ bool is_whiteout) -+{ -+ struct ovl_cache_entry *p; -+ -+ p = kmalloc(sizeof(*p) + len + 1, GFP_KERNEL); -+ if (p) { -+ char *name_copy = (char *) (p + 1); -+ memcpy(name_copy, name, len); -+ name_copy[len] = '\0'; -+ p->name = name_copy; -+ p->len = len; -+ p->type = d_type; -+ p->ino = ino; -+ p->is_whiteout = is_whiteout; -+ } -+ -+ return p; -+} -+ -+static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd, -+ const char *name, int len, u64 ino, -+ unsigned int d_type, bool is_whiteout) -+{ -+ struct rb_node **newp = &rdd->root->rb_node; -+ struct rb_node *parent = NULL; -+ struct ovl_cache_entry *p; -+ -+ while (*newp) { -+ int cmp; -+ struct ovl_cache_entry *tmp; -+ -+ parent = *newp; -+ tmp = ovl_cache_entry_from_node(*newp); -+ cmp = strncmp(name, tmp->name, len); -+ if (cmp > 0) -+ newp = &tmp->node.rb_right; -+ else if (cmp < 0 || len < tmp->len) -+ newp = &tmp->node.rb_left; -+ else -+ return 0; -+ } -+ -+ p = ovl_cache_entry_new(name, len, ino, d_type, is_whiteout); -+ if (p == NULL) -+ return -ENOMEM; -+ -+ list_add_tail(&p->l_node, rdd->list); -+ rb_link_node(&p->node, parent, newp); -+ rb_insert_color(&p->node, rdd->root); -+ -+ return 0; -+} -+ -+static int ovl_fill_lower(void *buf, const char *name, int namelen, -+ loff_t offset, u64 ino, unsigned int d_type) -+{ -+ struct ovl_readdir_data *rdd = buf; -+ struct ovl_cache_entry *p; -+ -+ rdd->count++; -+ p = ovl_cache_entry_find(rdd->root, name, namelen); -+ if (p) { -+ list_move_tail(&p->l_node, rdd->middle); -+ } else { -+ p = ovl_cache_entry_new(name, namelen, ino, d_type, false); -+ if (p == NULL) -+ rdd->err = -ENOMEM; -+ else -+ list_add_tail(&p->l_node, rdd->middle); -+ } -+ -+ return rdd->err; -+} -+ -+static void ovl_cache_free(struct list_head *list) -+{ -+ struct ovl_cache_entry *p; -+ struct ovl_cache_entry *n; -+ -+ list_for_each_entry_safe(p, n, list, l_node) -+ kfree(p); -+ -+ INIT_LIST_HEAD(list); -+} -+ -+static int ovl_fill_upper(void *buf, const char *name, int namelen, -+ loff_t offset, u64 ino, unsigned int d_type) -+{ -+ struct ovl_readdir_data *rdd = buf; -+ bool is_whiteout = false; -+ -+ rdd->count++; -+ if (d_type == DT_LNK) { -+ struct dentry *dentry; -+ -+ dentry = lookup_one_len(name, rdd->dir, namelen); -+ if (IS_ERR(dentry)) { -+ rdd->err = PTR_ERR(dentry); -+ goto out; -+ } -+ is_whiteout = ovl_is_whiteout(dentry); -+ dput(dentry); -+ } -+ -+ rdd->err = ovl_cache_entry_add_rb(rdd, name, namelen, ino, d_type, -+ is_whiteout); -+ -+out: -+ return rdd->err; -+} -+ -+static int ovl_dir_read(struct path *realpath, struct ovl_readdir_data *rdd, -+ filldir_t filler) -+{ -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ struct file *realfile; -+ int err; -+ -+ realfile = vfs_open(realpath, O_RDONLY | O_DIRECTORY, current_cred()); -+ if (IS_ERR(realfile)) -+ return PTR_ERR(realfile); -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (override_cred) { -+ /* -+ * CAP_SYS_ADMIN for getxattr -+ * CAP_DAC_OVERRIDE for lookup and unlink -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); -+ old_cred = override_creds(override_cred); -+ -+ do { -+ rdd->count = 0; -+ rdd->err = 0; -+ err = vfs_readdir(realfile, filler, rdd); -+ if (err >= 0) -+ err = rdd->err; -+ } while (!err && rdd->count); -+ -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ } -+ fput(realfile); -+ -+ if (err) { -+ if (rdd->list) -+ ovl_cache_free(rdd->list); -+ return err; -+ } -+ -+ return 0; -+} -+ -+static void ovl_dir_reset(struct file *file) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ enum ovl_path_type type = ovl_path_type(file->f_path.dentry); -+ -+ if (ovl_dentry_version_get(file->f_path.dentry) != od->cache_version) { -+ list_del_init(&od->cursor); -+ ovl_cache_free(&od->cache); -+ od->is_cached = false; -+ } -+ WARN_ON(!od->is_real && type != OVL_PATH_MERGE); -+ if (od->is_real && type == OVL_PATH_MERGE) { -+ fput(od->realfile); -+ od->realfile = NULL; -+ od->is_real = false; -+ } -+} -+ -+static int ovl_dir_read_merged(struct path *upperpath, struct path *lowerpath, -+ struct ovl_readdir_data *rdd) -+{ -+ int err; -+ struct rb_root root = RB_ROOT; -+ struct list_head middle; -+ -+ rdd->root = &root; -+ if (upperpath->dentry) { -+ rdd->dir = upperpath->dentry; -+ err = ovl_dir_read(upperpath, rdd, ovl_fill_upper); -+ if (err) -+ goto out; -+ } -+ /* -+ * Insert lowerpath entries before upperpath ones, this allows -+ * offsets to be reasonably constant -+ */ -+ list_add(&middle, rdd->list); -+ rdd->middle = &middle; -+ err = ovl_dir_read(lowerpath, rdd, ovl_fill_lower); -+ list_del(&middle); -+out: -+ rdd->root = NULL; -+ -+ return err; -+} -+ -+static void ovl_seek_cursor(struct ovl_dir_file *od, loff_t pos) -+{ -+ struct list_head *l; -+ loff_t off; -+ -+ l = od->cache.next; -+ for (off = 0; off < pos; off++) { -+ if (l == &od->cache) -+ break; -+ l = l->next; -+ } -+ list_move_tail(&od->cursor, l); -+} -+ -+static int ovl_readdir(struct file *file, void *buf, filldir_t filler) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ int res; -+ -+ if (!file->f_pos) -+ ovl_dir_reset(file); -+ -+ if (od->is_real) { -+ res = vfs_readdir(od->realfile, filler, buf); -+ file->f_pos = od->realfile->f_pos; -+ -+ return res; -+ } -+ -+ if (!od->is_cached) { -+ struct path lowerpath; -+ struct path upperpath; -+ struct ovl_readdir_data rdd = { .list = &od->cache }; -+ -+ ovl_path_lower(file->f_path.dentry, &lowerpath); -+ ovl_path_upper(file->f_path.dentry, &upperpath); -+ -+ res = ovl_dir_read_merged(&upperpath, &lowerpath, &rdd); -+ if (res) -+ return res; -+ -+ od->cache_version = ovl_dentry_version_get(file->f_path.dentry); -+ od->is_cached = true; -+ -+ ovl_seek_cursor(od, file->f_pos); -+ } -+ -+ while (od->cursor.next != &od->cache) { -+ int over; -+ loff_t off; -+ struct ovl_cache_entry *p; -+ -+ p = list_entry(od->cursor.next, struct ovl_cache_entry, l_node); -+ off = file->f_pos; -+ file->f_pos++; -+ list_move(&od->cursor, &p->l_node); -+ -+ if (p->is_whiteout) -+ continue; -+ -+ over = filler(buf, p->name, p->len, off, p->ino, p->type); -+ if (over) -+ break; -+ } -+ -+ return 0; -+} -+ -+static loff_t ovl_dir_llseek(struct file *file, loff_t offset, int origin) -+{ -+ loff_t res; -+ struct ovl_dir_file *od = file->private_data; -+ -+ mutex_lock(&file->f_dentry->d_inode->i_mutex); -+ if (!file->f_pos) -+ ovl_dir_reset(file); -+ -+ if (od->is_real) { -+ res = vfs_llseek(od->realfile, offset, origin); -+ file->f_pos = od->realfile->f_pos; -+ } else { -+ res = -EINVAL; -+ -+ switch (origin) { -+ case SEEK_CUR: -+ offset += file->f_pos; -+ break; -+ case SEEK_SET: -+ break; -+ default: -+ goto out_unlock; -+ } -+ if (offset < 0) -+ goto out_unlock; -+ -+ if (offset != file->f_pos) { -+ file->f_pos = offset; -+ if (od->is_cached) -+ ovl_seek_cursor(od, offset); -+ } -+ res = offset; -+ } -+out_unlock: -+ mutex_unlock(&file->f_dentry->d_inode->i_mutex); -+ -+ return res; -+} -+ -+static int ovl_dir_fsync(struct file *file, int datasync) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ -+ /* May need to reopen directory if it got copied up */ -+ if (!od->realfile) { -+ struct path upperpath; -+ -+ ovl_path_upper(file->f_path.dentry, &upperpath); -+ od->realfile = vfs_open(&upperpath, O_RDONLY, current_cred()); -+ if (IS_ERR(od->realfile)) -+ return PTR_ERR(od->realfile); -+ } -+ -+ return vfs_fsync(od->realfile, datasync); -+} -+ -+static int ovl_dir_release(struct inode *inode, struct file *file) -+{ -+ struct ovl_dir_file *od = file->private_data; -+ -+ list_del(&od->cursor); -+ ovl_cache_free(&od->cache); -+ if (od->realfile) -+ fput(od->realfile); -+ kfree(od); -+ -+ return 0; -+} -+ -+static int ovl_dir_open(struct inode *inode, struct file *file) -+{ -+ struct path realpath; -+ struct file *realfile; -+ struct ovl_dir_file *od; -+ enum ovl_path_type type; -+ -+ od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL); -+ if (!od) -+ return -ENOMEM; -+ -+ type = ovl_path_real(file->f_path.dentry, &realpath); -+ realfile = vfs_open(&realpath, file->f_flags, current_cred()); -+ if (IS_ERR(realfile)) { -+ kfree(od); -+ return PTR_ERR(realfile); -+ } -+ INIT_LIST_HEAD(&od->cache); -+ INIT_LIST_HEAD(&od->cursor); -+ od->is_cached = false; -+ od->realfile = realfile; -+ od->is_real = (type != OVL_PATH_MERGE); -+ file->private_data = od; -+ -+ return 0; -+} -+ -+static const struct file_operations ovl_dir_operations = { -+ .read = generic_read_dir, -+ .open = ovl_dir_open, -+ .readdir = ovl_readdir, -+ .llseek = ovl_dir_llseek, -+ .fsync = ovl_dir_fsync, -+ .release = ovl_dir_release, -+}; -+ -+static const struct inode_operations ovl_dir_inode_operations; -+ -+static void ovl_entry_free(struct rcu_head *head) -+{ -+ struct ovl_entry *oe = container_of(head, struct ovl_entry, rcu); -+ kfree(oe); -+} -+ -+static void ovl_dentry_release(struct dentry *dentry) -+{ -+ struct ovl_entry *oe = dentry->d_fsdata; -+ -+ if (oe) { -+ dput(oe->__upperdentry); -+ dput(oe->lowerdentry); -+ call_rcu(&oe->rcu, ovl_entry_free); -+ } -+} -+ -+static const struct dentry_operations ovl_dentry_operations = { -+ .d_release = ovl_dentry_release, -+}; -+ -+static struct dentry *ovl_lookup_real(struct dentry *dir, struct qstr *name) -+{ -+ struct dentry *dentry; -+ -+ mutex_lock(&dir->d_inode->i_mutex); -+ dentry = lookup_one_len(name->name, dir, name->len); -+ mutex_unlock(&dir->d_inode->i_mutex); -+ -+ if (IS_ERR(dentry)) { -+ if (PTR_ERR(dentry) == -ENOENT) -+ dentry = NULL; -+ } else if (!dentry->d_inode) { -+ dput(dentry); -+ dentry = NULL; -+ } -+ return dentry; -+} -+ -+static struct ovl_entry *ovl_alloc_entry(void) -+{ -+ return kzalloc(sizeof(struct ovl_entry), GFP_KERNEL); -+} -+ -+static struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, -+ struct ovl_entry *oe); -+ -+static struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, -+ struct nameidata *nd) -+{ -+ struct ovl_entry *oe; -+ struct dentry *upperdir; -+ struct dentry *lowerdir; -+ struct dentry *upperdentry = NULL; -+ struct dentry *lowerdentry = NULL; -+ struct inode *inode = NULL; -+ int err; -+ -+ err = -ENOMEM; -+ oe = ovl_alloc_entry(); -+ if (!oe) -+ goto out; -+ -+ upperdir = ovl_dentry_upper(dentry->d_parent); -+ lowerdir = ovl_dentry_lower(dentry->d_parent); -+ -+ if (upperdir) { -+ upperdentry = ovl_lookup_real(upperdir, &dentry->d_name); -+ err = PTR_ERR(upperdentry); -+ if (IS_ERR(upperdentry)) -+ goto out_put_dir; -+ -+ if (lowerdir && upperdentry && -+ (S_ISLNK(upperdentry->d_inode->i_mode) || -+ S_ISDIR(upperdentry->d_inode->i_mode))) { -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out_dput_upper; -+ -+ /* CAP_SYS_ADMIN needed for getxattr */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ old_cred = override_creds(override_cred); -+ -+ if (ovl_is_opaquedir(upperdentry)) { -+ oe->opaque = true; -+ } else if (ovl_is_whiteout(upperdentry)) { -+ dput(upperdentry); -+ upperdentry = NULL; -+ oe->opaque = true; -+ } -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ } -+ } -+ if (lowerdir && !oe->opaque) { -+ lowerdentry = ovl_lookup_real(lowerdir, &dentry->d_name); -+ err = PTR_ERR(lowerdentry); -+ if (IS_ERR(lowerdentry)) -+ goto out_dput_upper; -+ } -+ -+ if (lowerdentry && upperdentry && -+ (!S_ISDIR(upperdentry->d_inode->i_mode) || -+ !S_ISDIR(lowerdentry->d_inode->i_mode))) { -+ dput(lowerdentry); -+ lowerdentry = NULL; -+ oe->opaque = true; -+ } -+ -+ if (lowerdentry || upperdentry) { -+ struct dentry *realdentry; -+ -+ realdentry = upperdentry ? upperdentry : lowerdentry; -+ err = -ENOMEM; -+ inode = ovl_new_inode(dir->i_sb, realdentry->d_inode->i_mode, oe); -+ if (!inode) -+ goto out_dput; -+ } -+ -+ if (upperdentry) -+ oe->__upperdentry = upperdentry; -+ -+ if (lowerdentry) -+ oe->lowerdentry = lowerdentry; -+ -+ dentry->d_fsdata = oe; -+ dentry->d_op = &ovl_dentry_operations; -+ d_add(dentry, inode); -+ -+ return NULL; -+ -+out_dput: -+ dput(lowerdentry); -+out_dput_upper: -+ dput(upperdentry); -+out_put_dir: -+ kfree(oe); -+out: -+ return ERR_PTR(err); -+} -+ -+static int ovl_copy_up_xattr(struct dentry *old, struct dentry *new) -+{ -+ ssize_t list_size, size; -+ char *buf, *name, *value; -+ int error; -+ -+ if (!old->d_inode->i_op->getxattr || -+ !new->d_inode->i_op->getxattr) -+ return 0; -+ -+ list_size = vfs_listxattr(old, NULL, 0); -+ if (list_size <= 0) { -+ if (list_size == -EOPNOTSUPP) -+ return 0; -+ return list_size; -+ } -+ -+ buf = kzalloc(list_size, GFP_KERNEL); -+ if (!buf) -+ return -ENOMEM; -+ -+ error = -ENOMEM; -+ value = kmalloc(XATTR_SIZE_MAX, GFP_KERNEL); -+ if (!value) -+ goto out; -+ -+ list_size = vfs_listxattr(old, buf, list_size); -+ if (list_size <= 0) { -+ error = list_size; -+ goto out_free_value; -+ } -+ -+ for (name = buf; name < (buf + list_size); name += strlen(name) + 1) { -+ size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX); -+ if (size <= 0) { -+ error = size; -+ goto out_free_value; -+ } -+ error = vfs_setxattr(new, name, value, size, 0); -+ if (error) -+ goto out_free_value; -+ } -+ -+out_free_value: -+ kfree(value); -+out: -+ kfree(buf); -+ return error; -+} -+ -+static int ovl_copy_up_data(struct path *old, struct path *new, loff_t len) -+{ -+ struct file *old_file; -+ struct file *new_file; -+ int error = 0; -+ -+ if (len == 0) -+ return 0; -+ -+ old_file = vfs_open(old, O_RDONLY, current_cred()); -+ if (IS_ERR(old_file)) -+ return PTR_ERR(old_file); -+ -+ new_file = vfs_open(new, O_WRONLY, current_cred()); -+ if (IS_ERR(new_file)) { -+ error = PTR_ERR(new_file); -+ goto out_fput; -+ } -+ -+ /* FIXME: copy up sparse files efficiently */ -+ while (len) { -+ loff_t offset = new_file->f_pos; -+ size_t this_len = OVL_COPY_UP_CHUNK_SIZE; -+ long bytes; -+ -+ if (len < this_len) -+ this_len = len; -+ -+ if (signal_pending_state(TASK_KILLABLE, current)) -+ return -EINTR; -+ -+ bytes = do_splice_direct(old_file, &offset, new_file, this_len, -+ SPLICE_F_MOVE); -+ if (bytes <= 0) { -+ error = bytes; -+ break; -+ } -+ -+ len -= bytes; -+ } -+ -+ fput(new_file); -+out_fput: -+ fput(old_file); -+ return error; -+} -+ -+static struct dentry *ovl_lookup_create(struct dentry *upperdir, -+ struct dentry *template) -+{ -+ int err; -+ struct dentry *newdentry; -+ struct qstr *name = &template->d_name; -+ -+ newdentry = lookup_one_len(name->name, upperdir, name->len); -+ if (IS_ERR(newdentry)) -+ return newdentry; -+ -+ if (newdentry->d_inode) { -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ /* No need to check whiteout if lower parent is non-existent */ -+ err = -EEXIST; -+ if (!ovl_dentry_lower(template->d_parent)) -+ goto out_dput; -+ -+ if (!S_ISLNK(newdentry->d_inode->i_mode)) -+ goto out_dput; -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out_dput; -+ -+ /* -+ * CAP_SYS_ADMIN for getxattr -+ * CAP_FOWNER for unlink in sticky directory -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_FOWNER); -+ old_cred = override_creds(override_cred); -+ -+ err = -EEXIST; -+ if (ovl_is_whiteout(newdentry)) -+ err = vfs_unlink(upperdir->d_inode, newdentry); -+ -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ if (err) -+ goto out_dput; -+ -+ dput(newdentry); -+ newdentry = lookup_one_len(name->name, upperdir, name->len); -+ if (IS_ERR(newdentry)) -+ return newdentry; -+ -+ /* -+ * Whiteout just been successfully removed, parent -+ * i_mutex is still held, there's no way the lookup -+ * could return positive. -+ */ -+ WARN_ON(newdentry->d_inode); -+ } -+ -+ return newdentry; -+ -+out_dput: -+ dput(newdentry); -+ return ERR_PTR(err); -+} -+ -+static struct dentry *ovl_upper_create(struct dentry *upperdir, -+ struct dentry *dentry, -+ struct kstat *stat, const char *link) -+{ -+ int err; -+ struct dentry *newdentry; -+ struct inode *dir = upperdir->d_inode; -+ -+ newdentry = ovl_lookup_create(upperdir, dentry); -+ if (IS_ERR(newdentry)) -+ goto out; -+ -+ switch (stat->mode & S_IFMT) { -+ case S_IFREG: -+ err = vfs_create(dir, newdentry, stat->mode, NULL); -+ break; -+ -+ case S_IFDIR: -+ err = vfs_mkdir(dir, newdentry, stat->mode); -+ break; -+ -+ case S_IFCHR: -+ case S_IFBLK: -+ case S_IFIFO: -+ case S_IFSOCK: -+ err = vfs_mknod(dir, newdentry, stat->mode, stat->rdev); -+ break; -+ -+ case S_IFLNK: -+ err = vfs_symlink(dir, newdentry, link); -+ break; -+ -+ default: -+ err = -EPERM; -+ } -+ if (err) { -+ dput(newdentry); -+ newdentry = ERR_PTR(err); -+ } -+ -+out: -+ return newdentry; -+ -+} -+ -+static char *ovl_read_symlink(struct dentry *realdentry) -+{ -+ int res; -+ char *buf; -+ struct inode *inode = realdentry->d_inode; -+ mm_segment_t old_fs; -+ -+ res = -EINVAL; -+ if (!inode->i_op->readlink) -+ goto err; -+ -+ res = -ENOMEM; -+ buf = (char *) __get_free_page(GFP_KERNEL); -+ if (!buf) -+ goto err; -+ -+ old_fs = get_fs(); -+ set_fs(get_ds()); -+ /* The cast to a user pointer is valid due to the set_fs() */ -+ res = inode->i_op->readlink(realdentry, -+ (char __user *)buf, PAGE_SIZE - 1); -+ set_fs(old_fs); -+ if (res < 0) { -+ free_page((unsigned long) buf); -+ goto err; -+ } -+ buf[res] = '\0'; -+ -+ return buf; -+ -+err: -+ return ERR_PTR(res); -+} -+ -+static int ovl_set_timestamps(struct dentry *upperdentry, struct kstat *stat) -+{ -+ struct iattr attr = { -+ .ia_valid = ATTR_ATIME | ATTR_MTIME | ATTR_ATIME_SET | ATTR_MTIME_SET, -+ .ia_atime = stat->atime, -+ .ia_mtime = stat->mtime, -+ }; -+ -+ return notify_change(upperdentry, &attr); -+} -+ -+static int ovl_set_mode(struct dentry *upperdentry, umode_t mode) -+{ -+ struct iattr attr = { -+ .ia_valid = ATTR_MODE, -+ .ia_mode = mode, -+ }; -+ -+ return notify_change(upperdentry, &attr); -+} -+ -+static int ovl_set_opaque(struct dentry *upperdentry) -+{ -+ int err; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ return -ENOMEM; -+ -+ /* CAP_SYS_ADMIN for setxattr of "trusted" namespace */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ old_cred = override_creds(override_cred); -+ err = vfs_setxattr(upperdentry, ovl_opaque_xattr, "y", 1, 0); -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+ return err; -+} -+ -+static int ovl_remove_opaque(struct dentry *upperdentry) -+{ -+ int err; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ return -ENOMEM; -+ -+ /* CAP_SYS_ADMIN for removexattr of "trusted" namespace */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ old_cred = override_creds(override_cred); -+ err = vfs_removexattr(upperdentry, ovl_opaque_xattr); -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+ return err; -+} -+ -+static int ovl_copy_up_locked(struct dentry *upperdir, struct dentry *dentry, -+ struct path *lowerpath, struct kstat *stat, -+ const char *link) -+{ -+ int err; -+ struct path newpath; -+ umode_t mode = stat->mode; -+ struct ovl_fs *ofs = dentry->d_sb->s_fs_info; -+ -+ /* Can't properly set mode on creation because of the umask */ -+ stat->mode &= S_IFMT; -+ -+ newpath.mnt = ofs->upper_mnt; -+ newpath.dentry = ovl_upper_create(upperdir, dentry, stat, link); -+ if (IS_ERR(newpath.dentry)) { -+ err = PTR_ERR(newpath.dentry); -+ -+ /* Already copied up? */ -+ if (err == -EEXIST && ovl_path_type(dentry) != OVL_PATH_LOWER) -+ return 0; -+ -+ return err; -+ } -+ -+ /* FIXME: recovery from failure to copy up */ -+ -+ if (S_ISREG(stat->mode)) { -+ err = ovl_copy_up_data(lowerpath, &newpath, stat->size); -+ if (err) -+ return err; -+ } -+ -+ err = ovl_copy_up_xattr(lowerpath->dentry, newpath.dentry); -+ if (err) -+ return err; -+ -+ mutex_lock(&newpath.dentry->d_inode->i_mutex); -+ if (!S_ISLNK(stat->mode)) -+ err = ovl_set_mode(newpath.dentry, mode); -+ if (!err) -+ err = ovl_set_timestamps(newpath.dentry, stat); -+ mutex_unlock(&newpath.dentry->d_inode->i_mutex); -+ if (err) -+ return err; -+ -+ ovl_dentry_update(dentry, newpath.dentry); -+ -+ /* -+ * Easiest way to get rid of the lower dentry reference is to -+ * drop this dentry. This is neither needed nor possible for -+ * directories. -+ */ -+ if (!S_ISDIR(stat->mode)) -+ d_drop(dentry); -+ -+ return 0; -+} -+ -+static int ovl_copy_up_one(struct dentry *parent, struct dentry *dentry, -+ struct path *lowerpath, struct kstat *stat) -+{ -+ int err; -+ struct kstat pstat; -+ struct path parentpath; -+ struct dentry *upperdir; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ char *link = NULL; -+ -+ ovl_path_upper(parent, &parentpath); -+ upperdir = parentpath.dentry; -+ -+ err = vfs_getattr(parentpath.mnt, parentpath.dentry, &pstat); -+ if (err) -+ return err; -+ -+ if (S_ISLNK(stat->mode)) { -+ link = ovl_read_symlink(lowerpath->dentry); -+ if (IS_ERR(link)) -+ return PTR_ERR(link); -+ } -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out_free_link; -+ -+ override_cred->fsuid = stat->uid; -+ override_cred->fsgid = stat->gid; -+ /* -+ * CAP_SYS_ADMIN for copying up extended attributes -+ * CAP_DAC_OVERRIDE for create -+ * CAP_FOWNER for chmod, timestamp update -+ * CAP_FSETID for chmod -+ * CAP_MKNOD for mknod -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); -+ cap_raise(override_cred->cap_effective, CAP_FOWNER); -+ cap_raise(override_cred->cap_effective, CAP_FSETID); -+ cap_raise(override_cred->cap_effective, CAP_MKNOD); -+ old_cred = override_creds(override_cred); -+ -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ /* -+ * Using upper filesystem locking to protect against copy up -+ * racing with rename (rename means the copy up was already -+ * successful). -+ */ -+ if (dentry->d_parent != parent) { -+ WARN_ON((ovl_path_type(dentry) == OVL_PATH_LOWER)); -+ err = 0; -+ } else { -+ err = ovl_copy_up_locked(upperdir, dentry, lowerpath, -+ stat, link); -+ if (!err) { -+ /* Restore timestamps on parent (best effort) */ -+ ovl_set_timestamps(upperdir, &pstat); -+ } -+ } -+ -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+ -+ revert_creds(old_cred); -+ put_cred(override_cred); -+ -+out_free_link: -+ if (link) -+ free_page((unsigned long) link); -+ -+ return err; -+} -+ -+static int ovl_copy_up(struct dentry *dentry) -+{ -+ int err; -+ -+ err = 0; -+ while (!err) { -+ struct dentry *next; -+ struct dentry *parent; -+ struct path lowerpath; -+ struct kstat stat; -+ enum ovl_path_type type = ovl_path_type(dentry); -+ -+ if (type != OVL_PATH_LOWER) -+ break; -+ -+ next = dget(dentry); -+ /* find the topmost dentry not yet copied up */ -+ for (;;) { -+ parent = dget_parent(next); -+ -+ type = ovl_path_type(parent); -+ if (type != OVL_PATH_LOWER) -+ break; -+ -+ dput(next); -+ next = parent; -+ } -+ -+ ovl_path_lower(next, &lowerpath); -+ err = vfs_getattr(lowerpath.mnt, lowerpath.dentry, &stat); -+ if (!err) -+ err = ovl_copy_up_one(parent, next, &lowerpath, &stat); -+ -+ dput(parent); -+ dput(next); -+ } -+ -+ return err; -+} -+ -+/* Optimize by not copying up the file first and truncating later */ -+static int ovl_copy_up_truncate(struct dentry *dentry, loff_t size) -+{ -+ int err; -+ struct kstat stat; -+ struct path lowerpath; -+ struct dentry *parent = dget_parent(dentry); -+ -+ err = ovl_copy_up(parent); -+ if (err) -+ goto out_dput_parent; -+ -+ ovl_path_lower(dentry, &lowerpath); -+ err = vfs_getattr(lowerpath.mnt, lowerpath.dentry, &stat); -+ if (err) -+ goto out_dput_parent; -+ -+ if (size < stat.size) -+ stat.size = size; -+ -+ err = ovl_copy_up_one(parent, dentry, &lowerpath, &stat); -+ -+out_dput_parent: -+ dput(parent); -+ return err; -+} -+ -+static int ovl_setattr(struct dentry *dentry, struct iattr *attr) -+{ -+ struct dentry *upperdentry; -+ int err; -+ -+ if ((attr->ia_valid & ATTR_SIZE) && !ovl_dentry_upper(dentry)) -+ err = ovl_copy_up_truncate(dentry, attr->ia_size); -+ else -+ err = ovl_copy_up(dentry); -+ if (err) -+ return err; -+ -+ upperdentry = ovl_dentry_upper(dentry); -+ -+ if (attr->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID)) -+ attr->ia_valid &= ~ATTR_MODE; -+ -+ mutex_lock(&upperdentry->d_inode->i_mutex); -+ err = notify_change(upperdentry, attr); -+ mutex_unlock(&upperdentry->d_inode->i_mutex); -+ -+ return err; -+} -+ -+static int ovl_getattr(struct vfsmount *mnt, struct dentry *dentry, -+ struct kstat *stat) -+{ -+ struct path realpath; -+ -+ ovl_path_real(dentry, &realpath); -+ return vfs_getattr(realpath.mnt, realpath.dentry, stat); -+} -+ -+static int ovl_dir_getattr(struct vfsmount *mnt, struct dentry *dentry, -+ struct kstat *stat) -+{ -+ int err; -+ enum ovl_path_type type; -+ struct path realpath; -+ -+ type = ovl_path_real(dentry, &realpath); -+ err = vfs_getattr(realpath.mnt, realpath.dentry, stat); -+ if (err) -+ return err; -+ -+ stat->dev = dentry->d_sb->s_dev; -+ stat->ino = dentry->d_inode->i_ino; -+ -+ /* -+ * It's probably not worth it to count subdirs to get the -+ * correct link count. nlink=1 seems to pacify 'find' and -+ * other utilities. -+ */ -+ if (type == OVL_PATH_MERGE) -+ stat->nlink = 1; -+ -+ return 0; -+} -+ -+static int ovl_permission(struct inode *inode, int mask, unsigned int flags) -+{ -+ struct ovl_entry *oe; -+ struct dentry *alias = NULL; -+ struct inode *realinode; -+ struct dentry *realdentry; -+ bool is_upper; -+ int err; -+ -+ if (S_ISDIR(inode->i_mode)) { -+ oe = inode->i_private; -+ } else if (flags & IPERM_FLAG_RCU) { -+ return -ECHILD; -+ } else { -+ /* -+ * For non-directories find an alias and get the info -+ * from there. -+ */ -+ spin_lock(&inode->i_lock); -+ if (WARN_ON(list_empty(&inode->i_dentry))) { -+ spin_unlock(&inode->i_lock); -+ return -ENOENT; -+ } -+ alias = list_entry(inode->i_dentry.next, struct dentry, d_alias); -+ dget(alias); -+ spin_unlock(&inode->i_lock); -+ oe = alias->d_fsdata; -+ } -+ -+ realdentry = ovl_upperdentry_dereference(oe); -+ is_upper = true; -+ if (!realdentry) { -+ realdentry = oe->lowerdentry; -+ is_upper = false; -+ } -+ -+ /* Careful in RCU walk mode */ -+ realinode = ACCESS_ONCE(realdentry->d_inode); -+ if (!realinode) { -+ WARN_ON(!(flags & IPERM_FLAG_RCU)); -+ return -ENOENT; -+ } -+ -+ if (mask & MAY_WRITE) { -+ umode_t mode = realinode->i_mode; -+ -+ /* -+ * Writes will always be redirected to upper layer, so -+ * ignore lower layer being read-only. -+ */ -+ err = -EROFS; -+ if (is_upper && IS_RDONLY(realinode) && -+ (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) -+ goto out_dput; -+ -+ /* -+ * Nobody gets write access to an immutable file. -+ */ -+ err = -EACCES; -+ if (IS_IMMUTABLE(realinode)) -+ goto out_dput; -+ } -+ -+ if (realinode->i_op->permission) -+ err = realinode->i_op->permission(realinode, mask, flags); -+ else -+ err = generic_permission(realinode, mask, flags, -+ realinode->i_op->check_acl); -+out_dput: -+ dput(alias); -+ return err; -+} -+ -+static int ovl_create_object(struct dentry *dentry, int mode, dev_t rdev, -+ const char *link) -+{ -+ int err; -+ struct dentry *newdentry; -+ struct dentry *upperdir; -+ struct inode *inode; -+ struct kstat stat = { -+ .mode = mode, -+ .rdev = rdev, -+ }; -+ -+ err = -ENOMEM; -+ inode = ovl_new_inode(dentry->d_sb, mode, dentry->d_fsdata); -+ if (!inode) -+ goto out; -+ -+ err = ovl_copy_up(dentry->d_parent); -+ if (err) -+ goto out_iput; -+ -+ upperdir = ovl_dentry_upper(dentry->d_parent); -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ -+ newdentry = ovl_upper_create(upperdir, dentry, &stat, link); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_unlock; -+ -+ ovl_dentry_version_inc(dentry->d_parent); -+ if (ovl_dentry_is_opaque(dentry) && S_ISDIR(mode)) { -+ err = ovl_set_opaque(newdentry); -+ if (err) -+ goto out_dput; -+ } -+ ovl_dentry_update(dentry, newdentry); -+ d_instantiate(dentry, inode); -+ inode = NULL; -+ newdentry = NULL; -+ err = 0; -+ -+out_dput: -+ dput(newdentry); -+out_unlock: -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+out_iput: -+ iput(inode); -+out: -+ return err; -+} -+ -+static int ovl_create(struct inode *dir, struct dentry *dentry, int mode, -+ struct nameidata *nd) -+{ -+ return ovl_create_object(dentry, (mode & 07777) | S_IFREG, 0, NULL); -+} -+ -+static int ovl_mkdir(struct inode *dir, struct dentry *dentry, int mode) -+{ -+ return ovl_create_object(dentry, (mode & 07777) | S_IFDIR, 0, NULL); -+} -+ -+static int ovl_mknod(struct inode *dir, struct dentry *dentry, int mode, -+ dev_t rdev) -+{ -+ return ovl_create_object(dentry, mode, rdev, NULL); -+} -+ -+static int ovl_symlink(struct inode *dir, struct dentry *dentry, -+ const char *link) -+{ -+ return ovl_create_object(dentry, S_IFLNK, 0, link); -+} -+ -+struct ovl_link_data { -+ struct dentry *realdentry; -+ void *cookie; -+}; -+ -+static void *ovl_follow_link(struct dentry *dentry, struct nameidata *nd) -+{ -+ void *ret; -+ struct dentry *realdentry; -+ struct inode *realinode; -+ -+ realdentry = ovl_dentry_real(dentry); -+ realinode = realdentry->d_inode; -+ -+ if (WARN_ON(!realinode->i_op->follow_link)) -+ return ERR_PTR(-EPERM); -+ -+ ret = realinode->i_op->follow_link(realdentry, nd); -+ if (IS_ERR(ret)) -+ return ret; -+ -+ if (realinode->i_op->put_link) { -+ struct ovl_link_data *data; -+ -+ data = kmalloc(sizeof(struct ovl_link_data), GFP_KERNEL); -+ if (!data) { -+ realinode->i_op->put_link(realdentry, nd, ret); -+ return ERR_PTR(-ENOMEM); -+ } -+ data->realdentry = realdentry; -+ data->cookie = ret; -+ -+ return data; -+ } else { -+ return NULL; -+ } -+} -+ -+static void ovl_put_link(struct dentry *dentry, struct nameidata *nd, void *c) -+{ -+ struct inode *realinode; -+ struct ovl_link_data *data = c; -+ -+ if (!data) -+ return; -+ -+ realinode = data->realdentry->d_inode; -+ realinode->i_op->put_link(data->realdentry, nd, data->cookie); -+ kfree(data); -+} -+ -+static int ovl_readlink(struct dentry *dentry, char __user *buf, int bufsiz) -+{ -+ struct path realpath; -+ struct inode *realinode; -+ -+ ovl_path_real(dentry, &realpath); -+ realinode = realpath.dentry->d_inode; -+ -+ if (!realinode->i_op->readlink) -+ return -EINVAL; -+ -+ touch_atime(realpath.mnt, realpath.dentry); -+ -+ return realinode->i_op->readlink(realpath.dentry, buf, bufsiz); -+} -+ -+static int ovl_whiteout(struct dentry *upperdir, struct dentry *dentry) -+{ -+ int err; -+ struct dentry *newdentry; -+ const struct cred *old_cred; -+ struct cred *override_cred; -+ -+ /* FIXME: recheck lower dentry to see if whiteout is really needed */ -+ -+ err = -ENOMEM; -+ override_cred = prepare_creds(); -+ if (!override_cred) -+ goto out; -+ -+ /* -+ * CAP_SYS_ADMIN for setxattr -+ * CAP_DAC_OVERRIDE for symlink creation -+ */ -+ cap_raise(override_cred->cap_effective, CAP_SYS_ADMIN); -+ cap_raise(override_cred->cap_effective, CAP_DAC_OVERRIDE); -+ override_cred->fsuid = 0; -+ override_cred->fsgid = 0; -+ old_cred = override_creds(override_cred); -+ -+ newdentry = lookup_one_len(dentry->d_name.name, upperdir, -+ dentry->d_name.len); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_put_cred; -+ -+ /* Just been removed within the same locked region */ -+ WARN_ON(newdentry->d_inode); -+ -+ err = vfs_symlink(upperdir->d_inode, newdentry, ovl_whiteout_symlink); -+ if (err) -+ goto out_dput; -+ -+ ovl_dentry_version_inc(dentry->d_parent); -+ -+ err = vfs_setxattr(newdentry, ovl_whiteout_xattr, "y", 1, 0); -+ -+out_dput: -+ dput(newdentry); -+out_put_cred: -+ revert_creds(old_cred); -+ put_cred(override_cred); -+out: -+ return err; -+} -+ -+static int ovl_do_remove(struct dentry *dentry, bool is_dir) -+{ -+ int err; -+ enum ovl_path_type type; -+ struct path realpath; -+ struct dentry *upperdir; -+ -+ err = ovl_copy_up(dentry->d_parent); -+ if (err) -+ return err; -+ -+ upperdir = ovl_dentry_upper(dentry->d_parent); -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ type = ovl_path_real(dentry, &realpath); -+ if (type != OVL_PATH_LOWER) { -+ err = -ESTALE; -+ if (realpath.dentry->d_parent != upperdir) -+ goto out_d_drop; -+ -+ if (is_dir) -+ err = vfs_rmdir(upperdir->d_inode, realpath.dentry); -+ else -+ err = vfs_unlink(upperdir->d_inode, realpath.dentry); -+ if (err) -+ goto out_d_drop; -+ -+ ovl_dentry_version_inc(dentry->d_parent); -+ } -+ -+ if (type != OVL_PATH_UPPER || ovl_dentry_is_opaque(dentry)) -+ err = ovl_whiteout(upperdir, dentry); -+ -+ /* -+ * Keeping this dentry hashed would mean having to release -+ * upperpath/lowerpath, which could only be done if we are the -+ * sole user of this dentry. Too tricky... Just unhash for -+ * now. -+ */ -+out_d_drop: -+ d_drop(dentry); -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+ -+ return err; -+} -+ -+static int ovl_unlink(struct inode *dir, struct dentry *dentry) -+{ -+ return ovl_do_remove(dentry, false); -+} -+ -+static int ovl_check_empty_dir(struct dentry *dentry) -+{ -+ int err; -+ struct path lowerpath; -+ struct path upperpath; -+ struct ovl_cache_entry *p; -+ LIST_HEAD(list); -+ struct ovl_readdir_data rdd = { .list = &list }; -+ -+ ovl_path_upper(dentry, &upperpath); -+ ovl_path_lower(dentry, &lowerpath); -+ -+ err = ovl_dir_read_merged(&upperpath, &lowerpath, &rdd); -+ if (err) -+ return err; -+ -+ err = 0; -+ -+ list_for_each_entry(p, &list, l_node) { -+ if (p->is_whiteout) -+ continue; -+ -+ if (p->name[0] == '.') { -+ if (p->len == 1) -+ continue; -+ if (p->len == 2 && p->name[1] == '.') -+ continue; -+ } -+ err = -ENOTEMPTY; -+ break; -+ } -+ -+ ovl_cache_free(&list); -+ -+ return err; -+} -+ -+static int ovl_unlink_whiteout(void *buf, const char *name, int namelen, -+ loff_t offset, u64 ino, unsigned int d_type) -+{ -+ struct ovl_readdir_data *rdd = buf; -+ -+ rdd->count++; -+ /* check d_type to filter out "." and ".." */ -+ if (d_type == DT_LNK) { -+ struct dentry *dentry; -+ -+ dentry = lookup_one_len(name, rdd->dir, namelen); -+ if (IS_ERR(dentry)) { -+ rdd->err = PTR_ERR(dentry); -+ } else { -+ rdd->err = vfs_unlink(rdd->dir->d_inode, dentry); -+ dput(dentry); -+ } -+ } -+ -+ return rdd->err; -+} -+ -+static int ovl_remove_whiteouts(struct dentry *dentry) -+{ -+ struct path upperpath; -+ struct ovl_readdir_data rdd = { .list = NULL }; -+ -+ ovl_path_upper(dentry, &upperpath); -+ rdd.dir = upperpath.dentry; -+ -+ return ovl_dir_read(&upperpath, &rdd, ovl_unlink_whiteout); -+} -+ -+static int ovl_rmdir(struct inode *dir, struct dentry *dentry) -+{ -+ int err; -+ enum ovl_path_type type; -+ -+ type = ovl_path_type(dentry); -+ if (type != OVL_PATH_UPPER) { -+ err = ovl_check_empty_dir(dentry); -+ if (err) -+ return err; -+ -+ if (type == OVL_PATH_MERGE) { -+ err = ovl_remove_whiteouts(dentry); -+ if (err) -+ return err; -+ } -+ } -+ -+ return ovl_do_remove(dentry, true); -+} -+ -+static int ovl_link(struct dentry *old, struct inode *newdir, -+ struct dentry *new) -+{ -+ int err; -+ struct dentry *olddentry; -+ struct dentry *newdentry; -+ struct dentry *upperdir; -+ -+ err = ovl_copy_up(old); -+ if (err) -+ goto out; -+ -+ err = ovl_copy_up(new->d_parent); -+ if (err) -+ goto out; -+ -+ upperdir = ovl_dentry_upper(new->d_parent); -+ mutex_lock_nested(&upperdir->d_inode->i_mutex, I_MUTEX_PARENT); -+ newdentry = ovl_lookup_create(upperdir, new); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_unlock; -+ -+ olddentry = ovl_dentry_upper(old); -+ err = vfs_link(olddentry, upperdir->d_inode, newdentry); -+ if (!err) { -+ ovl_dentry_version_inc(new->d_parent); -+ ovl_dentry_update(new, newdentry); -+ -+ ihold(old->d_inode); -+ d_instantiate(new, old->d_inode); -+ } else { -+ dput(newdentry); -+ } -+out_unlock: -+ mutex_unlock(&upperdir->d_inode->i_mutex); -+out: -+ return err; -+ -+} -+ -+static int ovl_rename(struct inode *olddir, struct dentry *old, -+ struct inode *newdir, struct dentry *new) -+{ -+ int err; -+ enum ovl_path_type old_type; -+ struct dentry *old_upperdir; -+ struct dentry *new_upperdir; -+ struct dentry *olddentry; -+ struct dentry *newdentry; -+ struct dentry *trap; -+ bool is_dir = S_ISDIR(old->d_inode->i_mode); -+ -+ /* Don't copy up directory trees */ -+ old_type = ovl_path_type(old); -+ if (old_type != OVL_PATH_UPPER && is_dir) -+ return -EXDEV; -+ -+ if (new->d_inode) { -+ enum ovl_path_type new_type; -+ -+ new_type = ovl_path_type(new); -+ -+ if (new_type == OVL_PATH_LOWER && old_type == OVL_PATH_LOWER) { -+ if (ovl_dentry_lower(old)->d_inode == -+ ovl_dentry_lower(new)->d_inode) -+ return 0; -+ } -+ if (new_type != OVL_PATH_LOWER && old_type != OVL_PATH_LOWER) { -+ if (ovl_dentry_upper(old)->d_inode == -+ ovl_dentry_upper(new)->d_inode) -+ return 0; -+ } -+ -+ if (new_type != OVL_PATH_UPPER && -+ S_ISDIR(new->d_inode->i_mode)) { -+ err = ovl_check_empty_dir(new); -+ if (err) -+ return err; -+ -+ if (new_type == OVL_PATH_MERGE) { -+ err = ovl_remove_whiteouts(new); -+ if (err) -+ return err; -+ } -+ } -+ } -+ -+ err = ovl_copy_up(old); -+ if (err) -+ return err; -+ -+ err = ovl_copy_up(new->d_parent); -+ if (err) -+ return err; -+ -+ old_upperdir = ovl_dentry_upper(old->d_parent); -+ new_upperdir = ovl_dentry_upper(new->d_parent); -+ -+ trap = lock_rename(new_upperdir, old_upperdir); -+ -+ olddentry = ovl_dentry_upper(old); -+ newdentry = ovl_dentry_upper(new); -+ if (newdentry) { -+ dget(newdentry); -+ } else { -+ newdentry = ovl_lookup_create(new_upperdir, new); -+ err = PTR_ERR(newdentry); -+ if (IS_ERR(newdentry)) -+ goto out_unlock; -+ } -+ -+ err = -ESTALE; -+ if (olddentry->d_parent != old_upperdir) -+ goto out_dput; -+ if (newdentry->d_parent != new_upperdir) -+ goto out_dput; -+ if (olddentry == trap) -+ goto out_dput; -+ if (newdentry == trap) -+ goto out_dput; -+ -+ err = vfs_rename(old_upperdir->d_inode, olddentry, -+ new_upperdir->d_inode, newdentry); -+ -+ if (!err) { -+ bool old_opaque = ovl_dentry_is_opaque(old); -+ bool new_opaque = ovl_dentry_is_opaque(new); -+ -+ if (ovl_path_type(new) != OVL_PATH_UPPER) -+ new_opaque = true; -+ -+ if (old_type != OVL_PATH_UPPER || old_opaque) -+ err = ovl_whiteout(old_upperdir, old); -+ if (!err && is_dir) { -+ if (old_opaque && !new_opaque) { -+ ovl_remove_opaque(olddentry); -+ ovl_dentry_set_opaque(old, false); -+ } -+ if (!old_opaque && new_opaque) { -+ err = ovl_set_opaque(olddentry); -+ ovl_dentry_set_opaque(old, true); -+ } -+ } -+ ovl_dentry_version_inc(old->d_parent); -+ ovl_dentry_version_inc(new->d_parent); -+ } -+ -+out_dput: -+ dput(newdentry); -+out_unlock: -+ unlock_rename(new_upperdir, old_upperdir); -+ return err; -+} -+ -+static bool ovl_is_private_xattr(const char *name) -+{ -+ return strncmp(name, "trusted.overlay.", 14) == 0; -+} -+ -+static int ovl_setxattr(struct dentry *dentry, const char *name, -+ const void *value, size_t size, int flags) -+{ -+ int err; -+ struct dentry *upperdentry; -+ -+ if (ovl_is_private_xattr(name)) -+ return -EPERM; -+ -+ err = ovl_copy_up(dentry); -+ if (err) -+ return err; -+ -+ upperdentry = ovl_dentry_upper(dentry); -+ return vfs_setxattr(upperdentry, name, value, size, flags); -+} -+ -+static ssize_t ovl_getxattr(struct dentry *dentry, const char *name, -+ void *value, size_t size) -+{ -+ if (ovl_path_type(dentry->d_parent) == OVL_PATH_MERGE && -+ ovl_is_private_xattr(name)) -+ return -ENODATA; -+ -+ return vfs_getxattr(ovl_dentry_real(dentry), name, value, size); -+} -+ -+static ssize_t ovl_listxattr(struct dentry *dentry, char *list, size_t size) -+{ -+ ssize_t res; -+ int off; -+ -+ res = vfs_listxattr(ovl_dentry_real(dentry), list, size); -+ if (res <= 0 || size == 0) -+ return res; -+ -+ if (ovl_path_type(dentry->d_parent) != OVL_PATH_MERGE) -+ return res; -+ -+ /* filter out private xattrs */ -+ for (off = 0; off < res;) { -+ char *s = list + off; -+ size_t slen = strlen(s) + 1; -+ -+ BUG_ON(off + slen > res); -+ -+ if (ovl_is_private_xattr(s)) { -+ res -= slen; -+ memmove(s, s + slen, res - off); -+ } else { -+ off += slen; -+ } -+ } -+ -+ return res; -+} -+ -+static int ovl_removexattr(struct dentry *dentry, const char *name) -+{ -+ int err; -+ struct path realpath; -+ enum ovl_path_type type; -+ -+ if (ovl_path_type(dentry->d_parent) == OVL_PATH_MERGE && -+ ovl_is_private_xattr(name)) -+ return -ENODATA; -+ -+ type = ovl_path_real(dentry, &realpath); -+ if (type == OVL_PATH_LOWER) { -+ err = vfs_getxattr(realpath.dentry, name, NULL, 0); -+ if (err < 0) -+ return err; -+ -+ err = ovl_copy_up(dentry); -+ if (err) -+ return err; -+ -+ ovl_path_upper(dentry, &realpath); -+ } -+ -+ return vfs_removexattr(realpath.dentry, name); -+} -+ -+static bool ovl_open_need_copy_up(int flags, enum ovl_path_type type, -+ struct dentry *realdentry) -+{ -+ if (type != OVL_PATH_LOWER) -+ return false; -+ -+ if (special_file(realdentry->d_inode->i_mode)) -+ return false; -+ -+ if (!(OPEN_FMODE(flags) & FMODE_WRITE) && !(flags & O_TRUNC)) -+ return false; -+ -+ return true; -+} -+ -+static struct file *ovl_open(struct dentry *dentry, int flags, -+ const struct cred *cred) -+{ -+ int err; -+ struct path realpath; -+ enum ovl_path_type type; -+ -+ type = ovl_path_real(dentry, &realpath); -+ if (ovl_open_need_copy_up(flags, type, realpath.dentry)) { -+ if (flags & O_TRUNC) -+ err = ovl_copy_up_truncate(dentry, 0); -+ else -+ err = ovl_copy_up(dentry); -+ if (err) -+ return ERR_PTR(err); -+ -+ ovl_path_upper(dentry, &realpath); -+ } -+ -+ return vfs_open(&realpath, flags, cred); -+} -+ -+static const struct inode_operations ovl_dir_inode_operations = { -+ .lookup = ovl_lookup, -+ .mkdir = ovl_mkdir, -+ .symlink = ovl_symlink, -+ .unlink = ovl_unlink, -+ .rmdir = ovl_rmdir, -+ .rename = ovl_rename, -+ .link = ovl_link, -+ .setattr = ovl_setattr, -+ .create = ovl_create, -+ .mknod = ovl_mknod, -+ .permission = ovl_permission, -+ .getattr = ovl_dir_getattr, -+ .setxattr = ovl_setxattr, -+ .getxattr = ovl_getxattr, -+ .listxattr = ovl_listxattr, -+ .removexattr = ovl_removexattr, -+}; -+ -+static const struct inode_operations ovl_file_inode_operations = { -+ .setattr = ovl_setattr, -+ .permission = ovl_permission, -+ .getattr = ovl_getattr, -+ .setxattr = ovl_setxattr, -+ .getxattr = ovl_getxattr, -+ .listxattr = ovl_listxattr, -+ .removexattr = ovl_removexattr, -+ .open = ovl_open, -+}; -+ -+static const struct inode_operations ovl_symlink_inode_operations = { -+ .setattr = ovl_setattr, -+ .follow_link = ovl_follow_link, -+ .put_link = ovl_put_link, -+ .readlink = ovl_readlink, -+ .getattr = ovl_getattr, -+ .setxattr = ovl_setxattr, -+ .getxattr = ovl_getxattr, -+ .listxattr = ovl_listxattr, -+ .removexattr = ovl_removexattr, -+}; -+ -+static struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, -+ struct ovl_entry *oe) -+{ -+ struct inode *inode; -+ -+ inode = new_inode(sb); -+ if (!inode) -+ return NULL; -+ -+ mode &= S_IFMT; -+ -+ inode->i_ino = get_next_ino(); -+ inode->i_mode = mode; -+ inode->i_flags |= S_NOATIME | S_NOCMTIME; -+ -+ switch (mode) { -+ case S_IFDIR: -+ inode->i_private = oe; -+ inode->i_op = &ovl_dir_inode_operations; -+ inode->i_fop = &ovl_dir_operations; -+ break; -+ -+ case S_IFLNK: -+ inode->i_op = &ovl_symlink_inode_operations; -+ break; -+ -+ case S_IFREG: -+ case S_IFSOCK: -+ case S_IFBLK: -+ case S_IFCHR: -+ case S_IFIFO: -+ inode->i_op = &ovl_file_inode_operations; -+ break; -+ -+ default: -+ WARN(1, "illegal file type: %i\n", mode); -+ inode = NULL; -+ } -+ -+ return inode; -+ -+} -+ -+static void ovl_put_super(struct super_block *sb) -+{ -+ struct ovl_fs *ufs = sb->s_fs_info; -+ -+ if (!(sb->s_flags & MS_RDONLY)) -+ mnt_drop_write(ufs->upper_mnt); -+ -+ mntput(ufs->upper_mnt); -+ mntput(ufs->lower_mnt); -+ -+ kfree(ufs); -+} -+ -+static int ovl_remount_fs(struct super_block *sb, int *flagsp, char *data) -+{ -+ int flags = *flagsp; -+ struct ovl_fs *ufs = sb->s_fs_info; -+ -+ /* When remounting rw or ro, we need to adjust the write access to the -+ * upper fs. -+ */ -+ if (((flags ^ sb->s_flags) & MS_RDONLY) == 0) -+ /* No change to readonly status */ -+ return 0; -+ -+ if (flags & MS_RDONLY) { -+ mnt_drop_write(ufs->upper_mnt); -+ return 0; -+ } else -+ return mnt_want_write(ufs->upper_mnt); -+} -+ -+/** -+ * ovl_statfs -+ * @sb: The overlayfs super block -+ * @buf: The struct kstatfs to fill in with stats -+ * -+ * Get the filesystem statistics. As writes always target the upper layer -+ * filesystem pass the statfs to the same filesystem. -+ */ -+static int ovl_statfs(struct dentry *dentry, struct kstatfs *buf) -+{ -+ struct dentry *root_dentry = dentry->d_sb->s_root; -+ struct path path; -+ ovl_path_upper(root_dentry, &path); -+ -+ if (!path.dentry->d_sb->s_op->statfs) -+ return -ENOSYS; -+ return path.dentry->d_sb->s_op->statfs(path.dentry, buf); -+} -+ -+static const struct super_operations ovl_super_operations = { -+ .put_super = ovl_put_super, -+ .remount_fs = ovl_remount_fs, -+ .statfs = ovl_statfs, -+}; -+ -+struct ovl_config { -+ char *lowerdir; -+ char *upperdir; -+}; -+ -+enum { -+ Opt_lowerdir, -+ Opt_upperdir, -+ Opt_err, -+}; -+ -+static const match_table_t ovl_tokens = { -+ {Opt_lowerdir, "lowerdir=%s"}, -+ {Opt_upperdir, "upperdir=%s"}, -+ {Opt_err, NULL} -+}; -+ -+static int ovl_parse_opt(char *opt, struct ovl_config *config) -+{ -+ char *p; -+ -+ config->upperdir = NULL; -+ config->lowerdir = NULL; -+ -+ while ((p = strsep(&opt, ",")) != NULL) { -+ int token; -+ substring_t args[MAX_OPT_ARGS]; -+ -+ if (!*p) -+ continue; -+ -+ token = match_token(p, ovl_tokens, args); -+ switch (token) { -+ case Opt_upperdir: -+ kfree(config->upperdir); -+ config->upperdir = match_strdup(&args[0]); -+ if (!config->upperdir) -+ return -ENOMEM; -+ break; -+ -+ case Opt_lowerdir: -+ kfree(config->lowerdir); -+ config->lowerdir = match_strdup(&args[0]); -+ if (!config->lowerdir) -+ return -ENOMEM; -+ break; -+ -+ default: -+ return -EINVAL; -+ } -+ } -+ return 0; -+} -+ -+static int ovl_fill_super(struct super_block *sb, void *data, int silent) -+{ -+ struct path lowerpath; -+ struct path upperpath; -+ struct inode *root_inode; -+ struct dentry *root_dentry; -+ struct ovl_entry *oe; -+ struct ovl_fs *ufs; -+ struct ovl_config config; -+ int err; -+ -+ err = ovl_parse_opt((char *) data, &config); -+ if (err) -+ goto out; -+ -+ err = -EINVAL; -+ if (!config.upperdir || !config.lowerdir) { -+ printk(KERN_ERR "overlayfs: missing upperdir or lowerdir\n"); -+ goto out_free_config; -+ } -+ -+ err = -ENOMEM; -+ ufs = kmalloc(sizeof(struct ovl_fs), GFP_KERNEL); -+ if (!ufs) -+ goto out_free_config; -+ -+ oe = ovl_alloc_entry(); -+ if (oe == NULL) -+ goto out_free_ufs; -+ -+ root_inode = ovl_new_inode(sb, S_IFDIR, oe); -+ if (!root_inode) -+ goto out_free_oe; -+ -+ err = kern_path(config.upperdir, LOOKUP_FOLLOW, &upperpath); -+ if (err) -+ goto out_put_root; -+ -+ err = kern_path(config.lowerdir, LOOKUP_FOLLOW, &lowerpath); -+ if (err) -+ goto out_put_upperpath; -+ -+ err = -ENOTDIR; -+ if (!S_ISDIR(upperpath.dentry->d_inode->i_mode) || -+ !S_ISDIR(lowerpath.dentry->d_inode->i_mode)) -+ goto out_put_lowerpath; -+ -+ ufs->upper_mnt = clone_private_mount(&upperpath); -+ err = PTR_ERR(ufs->upper_mnt); -+ if (IS_ERR(ufs->upper_mnt)) { -+ printk(KERN_ERR "overlayfs: failed to clone upperpath\n"); -+ goto out_put_lowerpath; -+ } -+ -+ ufs->lower_mnt = clone_private_mount(&lowerpath); -+ err = PTR_ERR(ufs->lower_mnt); -+ if (IS_ERR(ufs->lower_mnt)) { -+ printk(KERN_ERR "overlayfs: failed to clone lowerpath\n"); -+ goto out_put_upper_mnt; -+ } -+ -+ if (!(sb->s_flags & MS_RDONLY)) { -+ err = mnt_want_write(ufs->upper_mnt); -+ if (err) -+ goto out_put_lower_mnt; -+ } -+ -+ err = -ENOMEM; -+ root_dentry = d_alloc_root(root_inode); -+ if (!root_dentry) -+ goto out_drop_write; -+ -+ mntput(upperpath.mnt); -+ mntput(lowerpath.mnt); -+ -+ oe->__upperdentry = upperpath.dentry; -+ oe->lowerdentry = lowerpath.dentry; -+ -+ root_dentry->d_fsdata = oe; -+ root_dentry->d_op = &ovl_dentry_operations; -+ -+ sb->s_op = &ovl_super_operations; -+ sb->s_root = root_dentry; -+ sb->s_fs_info = ufs; -+ -+ return 0; -+ -+out_drop_write: -+ if (!(sb->s_flags & MS_RDONLY)) -+ mnt_drop_write(ufs->upper_mnt); -+out_put_lower_mnt: -+ mntput(ufs->lower_mnt); -+out_put_upper_mnt: -+ mntput(ufs->upper_mnt); -+out_put_lowerpath: -+ path_put(&lowerpath); -+out_put_upperpath: -+ path_put(&upperpath); -+out_put_root: -+ iput(root_inode); -+out_free_oe: -+ kfree(oe); -+out_free_ufs: -+ kfree(ufs); -+out_free_config: -+ kfree(config.lowerdir); -+ kfree(config.upperdir); -+out: -+ return err; -+} -+ -+static int ovl_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, ovl_fill_super, mnt); -+} -+ -+static struct file_system_type ovl_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "overlayfs", -+ .get_sb = ovl_get_sb, -+ .kill_sb = kill_anon_super, -+}; -+ -+static int __init ovl_init(void) -+{ -+ return register_filesystem(&ovl_fs_type); -+} -+ -+static void __exit ovl_exit(void) -+{ -+ unregister_filesystem(&ovl_fs_type); -+} -+ -+module_init(ovl_init); -+module_exit(ovl_exit); ---- a/fs/splice.c -+++ b/fs/splice.c -@@ -1296,6 +1296,7 @@ long do_splice_direct(struct file *in, l - - return ret; - } -+EXPORT_SYMBOL(do_splice_direct); - - static int splice_pipe_to_pipe(struct pipe_inode_info *ipipe, - struct pipe_inode_info *opipe, ---- a/include/linux/fs.h -+++ b/include/linux/fs.h -@@ -1587,6 +1587,7 @@ struct inode_operations { - void (*truncate_range)(struct inode *, loff_t, loff_t); - int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, - u64 len); -+ struct file *(*open)(struct dentry *, int flags, const struct cred *); - } ____cacheline_aligned; - - struct seq_file; -@@ -1990,6 +1991,7 @@ extern int do_fallocate(struct file *fil - extern long do_sys_open(int dfd, const char __user *filename, int flags, - int mode); - extern struct file *filp_open(const char *, int, int); -+extern struct file *vfs_open(struct path *, int flags, const struct cred *); - extern struct file * dentry_open(struct dentry *, struct vfsmount *, int, - const struct cred *); - extern int filp_close(struct file *, fl_owner_t id); ---- a/include/linux/mount.h -+++ b/include/linux/mount.h -@@ -100,6 +100,9 @@ extern void mnt_pin(struct vfsmount *mnt - extern void mnt_unpin(struct vfsmount *mnt); - extern int __mnt_is_readonly(struct vfsmount *mnt); - -+struct path; -+extern struct vfsmount *clone_private_mount(struct path *path); -+ - extern struct vfsmount *do_kern_mount(const char *fstype, int flags, - const char *name, void *data); - diff --git a/target/linux/generic/patches-2.6.38/101-overlayfs_fix_readdir_deadlock.patch b/target/linux/generic/patches-2.6.38/101-overlayfs_fix_readdir_deadlock.patch deleted file mode 100644 index 81ef4c084f..0000000000 --- a/target/linux/generic/patches-2.6.38/101-overlayfs_fix_readdir_deadlock.patch +++ /dev/null @@ -1,124 +0,0 @@ ---- a/fs/overlayfs/overlayfs.c -+++ b/fs/overlayfs/overlayfs.c -@@ -253,8 +253,7 @@ static struct ovl_cache_entry *ovl_cache - } - - static struct ovl_cache_entry *ovl_cache_entry_new(const char *name, int len, -- u64 ino, unsigned int d_type, -- bool is_whiteout) -+ u64 ino, unsigned int d_type) - { - struct ovl_cache_entry *p; - -@@ -267,7 +266,7 @@ static struct ovl_cache_entry *ovl_cache - p->len = len; - p->type = d_type; - p->ino = ino; -- p->is_whiteout = is_whiteout; -+ p->is_whiteout = false; - } - - return p; -@@ -275,7 +274,7 @@ static struct ovl_cache_entry *ovl_cache - - static int ovl_cache_entry_add_rb(struct ovl_readdir_data *rdd, - const char *name, int len, u64 ino, -- unsigned int d_type, bool is_whiteout) -+ unsigned int d_type) - { - struct rb_node **newp = &rdd->root->rb_node; - struct rb_node *parent = NULL; -@@ -296,11 +295,18 @@ static int ovl_cache_entry_add_rb(struct - return 0; - } - -- p = ovl_cache_entry_new(name, len, ino, d_type, is_whiteout); -+ p = ovl_cache_entry_new(name, len, ino, d_type); - if (p == NULL) - return -ENOMEM; - -- list_add_tail(&p->l_node, rdd->list); -+ /* -+ * Add links before other types to be able to quicky mark -+ * any whiteout entries -+ */ -+ if (d_type == DT_LNK) -+ list_add(&p->l_node, rdd->list); -+ else -+ list_add_tail(&p->l_node, rdd->list); - rb_link_node(&p->node, parent, newp); - rb_insert_color(&p->node, rdd->root); - -@@ -318,7 +324,7 @@ static int ovl_fill_lower(void *buf, con - if (p) { - list_move_tail(&p->l_node, rdd->middle); - } else { -- p = ovl_cache_entry_new(name, namelen, ino, d_type, false); -+ p = ovl_cache_entry_new(name, namelen, ino, d_type); - if (p == NULL) - rdd->err = -ENOMEM; - else -@@ -343,26 +349,9 @@ static int ovl_fill_upper(void *buf, con - loff_t offset, u64 ino, unsigned int d_type) - { - struct ovl_readdir_data *rdd = buf; -- bool is_whiteout = false; - - rdd->count++; -- if (d_type == DT_LNK) { -- struct dentry *dentry; -- -- dentry = lookup_one_len(name, rdd->dir, namelen); -- if (IS_ERR(dentry)) { -- rdd->err = PTR_ERR(dentry); -- goto out; -- } -- is_whiteout = ovl_is_whiteout(dentry); -- dput(dentry); -- } -- -- rdd->err = ovl_cache_entry_add_rb(rdd, name, namelen, ino, d_type, -- is_whiteout); -- --out: -- return rdd->err; -+ return ovl_cache_entry_add_rb(rdd, name, namelen, ino, d_type); - } - - static int ovl_dir_read(struct path *realpath, struct ovl_readdir_data *rdd, -@@ -428,6 +417,26 @@ static void ovl_dir_reset(struct file *f - } - } - -+static void ovl_dir_mark_whiteouts(struct ovl_readdir_data *rdd) -+{ -+ struct ovl_cache_entry *p; -+ struct dentry *dentry; -+ -+ mutex_lock(&rdd->dir->d_inode->i_mutex); -+ list_for_each_entry(p, rdd->list, l_node) { -+ if (p->type != DT_LNK) -+ break; -+ -+ dentry = lookup_one_len(p->name, rdd->dir, p->len); -+ if (IS_ERR(dentry)) -+ continue; -+ -+ p->is_whiteout = ovl_is_whiteout(dentry); -+ dput(dentry); -+ } -+ mutex_unlock(&rdd->dir->d_inode->i_mutex); -+} -+ - static int ovl_dir_read_merged(struct path *upperpath, struct path *lowerpath, - struct ovl_readdir_data *rdd) - { -@@ -441,6 +450,8 @@ static int ovl_dir_read_merged(struct pa - err = ovl_dir_read(upperpath, rdd, ovl_fill_upper); - if (err) - goto out; -+ -+ ovl_dir_mark_whiteouts(rdd); - } - /* - * Insert lowerpath entries before upperpath ones, this allows diff --git a/target/linux/generic/patches-2.6.38/102-overlayfs_fix_readdir_unlink_deadlock.patch b/target/linux/generic/patches-2.6.38/102-overlayfs_fix_readdir_unlink_deadlock.patch deleted file mode 100644 index 6f4ceb4b77..0000000000 --- a/target/linux/generic/patches-2.6.38/102-overlayfs_fix_readdir_unlink_deadlock.patch +++ /dev/null @@ -1,76 +0,0 @@ ---- a/fs/overlayfs/overlayfs.c -+++ b/fs/overlayfs/overlayfs.c -@@ -1700,37 +1700,56 @@ static int ovl_check_empty_dir(struct de - return err; - } - --static int ovl_unlink_whiteout(void *buf, const char *name, int namelen, -- loff_t offset, u64 ino, unsigned int d_type) -+static int ovl_fill_links(void *buf, const char *name, int namelen, -+ loff_t offset, u64 ino, unsigned int d_type) - { - struct ovl_readdir_data *rdd = buf; -+ struct ovl_cache_entry *p; - -- rdd->count++; -- /* check d_type to filter out "." and ".." */ -- if (d_type == DT_LNK) { -- struct dentry *dentry; -+ if (d_type != DT_LNK) -+ return 0; - -- dentry = lookup_one_len(name, rdd->dir, namelen); -- if (IS_ERR(dentry)) { -- rdd->err = PTR_ERR(dentry); -- } else { -- rdd->err = vfs_unlink(rdd->dir->d_inode, dentry); -- dput(dentry); -- } -- } -+ p = ovl_cache_entry_new(name, namelen, ino, d_type); -+ if (!p) -+ return -ENOMEM; - -- return rdd->err; -+ list_add(&p->l_node, rdd->list); -+ return 0; - } - - static int ovl_remove_whiteouts(struct dentry *dentry) - { - struct path upperpath; -- struct ovl_readdir_data rdd = { .list = NULL }; -+ LIST_HEAD(list); -+ struct ovl_readdir_data rdd = { .list = &list }; -+ struct ovl_cache_entry *p, *t; -+ int ret; - - ovl_path_upper(dentry, &upperpath); - rdd.dir = upperpath.dentry; - -- return ovl_dir_read(&upperpath, &rdd, ovl_unlink_whiteout); -+ ret = ovl_dir_read(&upperpath, &rdd, ovl_fill_links); -+ -+ mutex_lock(&rdd.dir->d_inode->i_mutex); -+ list_for_each_entry_safe(p, t, &list, l_node) { -+ struct dentry *dentry; -+ -+ if (!ret) { -+ dentry = lookup_one_len(p->name, rdd.dir, p->len); -+ if (IS_ERR(dentry)) { -+ ret = PTR_ERR(dentry); -+ } else { -+ ret = vfs_unlink(rdd.dir->d_inode, dentry); -+ dput(dentry); -+ } -+ } -+ -+ list_del(&p->l_node); -+ kfree(p); -+ } -+ mutex_unlock(&rdd.dir->d_inode->i_mutex); -+ -+ return ret; - } - - static int ovl_rmdir(struct inode *dir, struct dentry *dentry) diff --git a/target/linux/generic/patches-2.6.38/110_fix_ecn_marking_ipv6.patch b/target/linux/generic/patches-2.6.38/110_fix_ecn_marking_ipv6.patch deleted file mode 100644 index a981884b1b..0000000000 --- a/target/linux/generic/patches-2.6.38/110_fix_ecn_marking_ipv6.patch +++ /dev/null @@ -1,25 +0,0 @@ ---- a/include/net/inet_ecn.h -+++ b/include/net/inet_ecn.h -@@ -38,9 +38,19 @@ static inline __u8 INET_ECN_encapsulate( - return outer; - } - --#define INET_ECN_xmit(sk) do { inet_sk(sk)->tos |= INET_ECN_ECT_0; } while (0) --#define INET_ECN_dontxmit(sk) \ -- do { inet_sk(sk)->tos &= ~INET_ECN_MASK; } while (0) -+static inline void INET_ECN_xmit(struct sock *sk) -+{ -+ inet_sk(sk)->tos |= INET_ECN_ECT_0; -+ if (inet6_sk(sk) != NULL) -+ inet6_sk(sk)->tclass |= INET_ECN_ECT_0; -+} -+ -+static inline void INET_ECN_dontxmit(struct sock *sk) -+{ -+ inet_sk(sk)->tos &= ~INET_ECN_MASK; -+ if (inet6_sk(sk) != NULL) -+ inet6_sk(sk)->tclass &= ~INET_ECN_MASK; -+} - - #define IP6_ECN_flow_init(label) do { \ - (label) &= ~htonl(INET_ECN_MASK << 20); \ diff --git a/target/linux/generic/patches-2.6.38/200-fix_localversion.patch b/target/linux/generic/patches-2.6.38/200-fix_localversion.patch deleted file mode 100644 index 70ed0ff3cb..0000000000 --- a/target/linux/generic/patches-2.6.38/200-fix_localversion.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- 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-2.6.38/201-extra_optimization.patch b/target/linux/generic/patches-2.6.38/201-extra_optimization.patch deleted file mode 100644 index d173e4c753..0000000000 --- a/target/linux/generic/patches-2.6.38/201-extra_optimization.patch +++ /dev/null @@ -1,24 +0,0 @@ ---- a/Makefile -+++ b/Makefile -@@ -539,9 +539,9 @@ endif # $(dot-config) - all: vmlinux - - ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE --KBUILD_CFLAGS += -Os -+KBUILD_CFLAGS += -Os -fno-caller-saves - else --KBUILD_CFLAGS += -O2 -+KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch -fno-caller-saves - 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-2.6.38/210-darwin_scripts_include.patch b/target/linux/generic/patches-2.6.38/210-darwin_scripts_include.patch deleted file mode 100644 index 0686a38973..0000000000 --- a/target/linux/generic/patches-2.6.38/210-darwin_scripts_include.patch +++ /dev/null @@ -1,78 +0,0 @@ ---- 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-2.6.38/211-stddef_include.patch b/target/linux/generic/patches-2.6.38/211-stddef_include.patch deleted file mode 100644 index 7fe248d8d3..0000000000 --- a/target/linux/generic/patches-2.6.38/211-stddef_include.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- 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-2.6.38/220-module_exports.patch b/target/linux/generic/patches-2.6.38/220-module_exports.patch deleted file mode 100644 index 5268115f01..0000000000 --- a/target/linux/generic/patches-2.6.38/220-module_exports.patch +++ /dev/null @@ -1,119 +0,0 @@ ---- 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 -@@ -274,35 +295,35 @@ - /* 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) = .; \ - } \ - \ -@@ -343,7 +364,7 @@ - \ - /* Kernel symbol table: strings */ \ - __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ -- *(__ksymtab_strings) \ -+ SYMTAB_KEEP_STR \ - } \ - \ - /* __*init sections */ \ -@@ -677,6 +698,9 @@ - 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 -@@ -229,16 +229,24 @@ 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-2.6.38/230-openwrt_lzma_options.patch b/target/linux/generic/patches-2.6.38/230-openwrt_lzma_options.patch deleted file mode 100644 index 8819a633ac..0000000000 --- a/target/linux/generic/patches-2.6.38/230-openwrt_lzma_options.patch +++ /dev/null @@ -1,54 +0,0 @@ ---- 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-2.6.38/250-netfilter_depends.patch b/target/linux/generic/patches-2.6.38/250-netfilter_depends.patch deleted file mode 100644 index d270e9020b..0000000000 --- a/target/linux/generic/patches-2.6.38/250-netfilter_depends.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- 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 -@@ -558,7 +557,6 @@ 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-2.6.38/251-sound_kconfig.patch b/target/linux/generic/patches-2.6.38/251-sound_kconfig.patch deleted file mode 100644 index fb3df254dc..0000000000 --- a/target/linux/generic/patches-2.6.38/251-sound_kconfig.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- 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-2.6.38/252-mv_cesa_depends.patch b/target/linux/generic/patches-2.6.38/252-mv_cesa_depends.patch deleted file mode 100644 index 1fd2f6365a..0000000000 --- a/target/linux/generic/patches-2.6.38/252-mv_cesa_depends.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/drivers/crypto/Kconfig -+++ b/drivers/crypto/Kconfig -@@ -162,6 +162,7 @@ config CRYPTO_DEV_MV_CESA - depends on PLAT_ORION - select CRYPTO_ALGAPI - select CRYPTO_AES -+ select CRYPTO_HASH2 - select CRYPTO_BLKCIPHER2 - help - This driver allows you to utilize the Cryptographic Engines and diff --git a/target/linux/generic/patches-2.6.38/253-ssb_b43_default_on.patch b/target/linux/generic/patches-2.6.38/253-ssb_b43_default_on.patch deleted file mode 100644 index 29d2a41a3b..0000000000 --- a/target/linux/generic/patches-2.6.38/253-ssb_b43_default_on.patch +++ /dev/null @@ -1,29 +0,0 @@ ---- 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 ---- a/drivers/bcma/Kconfig -+++ b/drivers/bcma/Kconfig -@@ -17,6 +17,7 @@ config BCMA - config BCMA_BLOCKIO - bool - depends on BCMA -+ default y - - config BCMA_HOST_PCI_POSSIBLE - bool diff --git a/target/linux/generic/patches-2.6.38/254-textsearch_kconfig_hacks.patch b/target/linux/generic/patches-2.6.38/254-textsearch_kconfig_hacks.patch deleted file mode 100644 index e9577ba5a0..0000000000 --- a/target/linux/generic/patches-2.6.38/254-textsearch_kconfig_hacks.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/lib/Kconfig -+++ b/lib/Kconfig -@@ -158,16 +158,16 @@ 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-2.6.38/255-lib80211_kconfig_hacks.patch b/target/linux/generic/patches-2.6.38/255-lib80211_kconfig_hacks.patch deleted file mode 100644 index c044deac00..0000000000 --- a/target/linux/generic/patches-2.6.38/255-lib80211_kconfig_hacks.patch +++ /dev/null @@ -1,19 +0,0 @@ ---- 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-2.6.38/256-crypto_add_kconfig_prompts.patch b/target/linux/generic/patches-2.6.38/256-crypto_add_kconfig_prompts.patch deleted file mode 100644 index 8462c711f0..0000000000 --- a/target/linux/generic/patches-2.6.38/256-crypto_add_kconfig_prompts.patch +++ /dev/null @@ -1,47 +0,0 @@ ---- 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-2.6.38/257-wireless_ext_kconfig_hack.patch b/target/linux/generic/patches-2.6.38/257-wireless_ext_kconfig_hack.patch deleted file mode 100644 index daac5898ae..0000000000 --- a/target/linux/generic/patches-2.6.38/257-wireless_ext_kconfig_hack.patch +++ /dev/null @@ -1,22 +0,0 @@ ---- 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-2.6.38/258-make_config_average_selectable.patch b/target/linux/generic/patches-2.6.38/258-make_config_average_selectable.patch deleted file mode 100644 index e66391cb0a..0000000000 --- a/target/linux/generic/patches-2.6.38/258-make_config_average_selectable.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- a/lib/Kconfig -+++ b/lib/Kconfig -@@ -217,6 +217,13 @@ config LRU_CACHE - tristate - - config AVERAGE -- bool -+ bool "Averaging functions" -+ help -+ This option is provided for the case where no in-kernel-tree -+ modules require averaging functions, but a module built outside -+ the kernel tree does. Such modules that use library averaging -+ functions require Y here. -+ -+ If unsure, say N. - - endmenu diff --git a/target/linux/generic/patches-2.6.38/260-geode-mfd.patch b/target/linux/generic/patches-2.6.38/260-geode-mfd.patch deleted file mode 100644 index a90b64ab55..0000000000 --- a/target/linux/generic/patches-2.6.38/260-geode-mfd.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/drivers/gpio/Kconfig -+++ b/drivers/gpio/Kconfig -@@ -295,7 +295,7 @@ comment "PCI GPIO expanders:" - - config GPIO_CS5535 - tristate "AMD CS5535/CS5536 GPIO support" -- depends on PCI && X86 && !CS5535_GPIO -+ depends on PCI && X86 && !CS5535_GPIO && MFD_CS5535 - help - The AMD CS5535 and CS5536 southbridges support 28 GPIO pins that - can be used for quite a number of things. The CS5535/6 is found on diff --git a/target/linux/generic/patches-2.6.38/261-geode-mfd2.patch b/target/linux/generic/patches-2.6.38/261-geode-mfd2.patch deleted file mode 100644 index ffdf26902f..0000000000 --- a/target/linux/generic/patches-2.6.38/261-geode-mfd2.patch +++ /dev/null @@ -1,12 +0,0 @@ ---- a/drivers/misc/Kconfig -+++ b/drivers/misc/Kconfig -@@ -224,8 +224,7 @@ config SGI_XP - - config CS5535_MFGPT - tristate "CS5535/CS5536 Geode Multi-Function General Purpose Timer (MFGPT) support" -- depends on PCI -- depends on X86 -+ depends on PCI && X86 && MFD_CS5536 - default n - help - This driver provides access to MFGPT functionality for other diff --git a/target/linux/generic/patches-2.6.38/300-mips_expose_boot_raw.patch b/target/linux/generic/patches-2.6.38/300-mips_expose_boot_raw.patch deleted file mode 100644 index bd83f665a3..0000000000 --- a/target/linux/generic/patches-2.6.38/300-mips_expose_boot_raw.patch +++ /dev/null @@ -1,39 +0,0 @@ -From: Mark Miller <mark@mirell.org> - -This exposes the CONFIG_BOOT_RAW symbol in Kconfig. This is needed on -certain Broadcom chipsets running CFE in order to load the kernel. - -Signed-off-by: Mark Miller <mark@mirell.org> -Acked-by: Rob Landley <rob@landley.net> ---- ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig -@@ -806,9 +806,6 @@ config ARC - config ARCH_MAY_HAVE_PC_FDC - bool - --config BOOT_RAW -- bool -- - config CEVT_BCM1480 - bool - -@@ -2244,6 +2241,18 @@ config USE_OF - help - Include support for flattened device tree machine descriptions. - -+config BOOT_RAW -+ bool "Enable the kernel to be executed from the load address" -+ default n -+ help -+ Allow the kernel to be executed from the load address for -+ bootloaders which cannot read the ELF format. This places -+ a jump to start_kernel at the load address. -+ -+ If unsure, say N. -+ -+ -+ - endmenu - - config LOCKDEP_SUPPORT diff --git a/target/linux/generic/patches-2.6.38/301-mips_image_cmdline_hack.patch b/target/linux/generic/patches-2.6.38/301-mips_image_cmdline_hack.patch deleted file mode 100644 index b499334556..0000000000 --- a/target/linux/generic/patches-2.6.38/301-mips_image_cmdline_hack.patch +++ /dev/null @@ -1,28 +0,0 @@ ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig -@@ -902,6 +902,10 @@ 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 -@@ -141,6 +141,12 @@ 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-2.6.38/302-mips_use_generic_thread_info_allocator.patch b/target/linux/generic/patches-2.6.38/302-mips_use_generic_thread_info_allocator.patch deleted file mode 100644 index 915bb5f92c..0000000000 --- a/target/linux/generic/patches-2.6.38/302-mips_use_generic_thread_info_allocator.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- 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-2.6.38/303-mips_fix_kexec.patch b/target/linux/generic/patches-2.6.38/303-mips_fix_kexec.patch deleted file mode 100644 index e6928dde91..0000000000 --- a/target/linux/generic/patches-2.6.38/303-mips_fix_kexec.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- 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-2.6.38/304-mips_disable_fpu.patch b/target/linux/generic/patches-2.6.38/304-mips_disable_fpu.patch deleted file mode 100644 index d1f60df64d..0000000000 --- a/target/linux/generic/patches-2.6.38/304-mips_disable_fpu.patch +++ /dev/null @@ -1,160 +0,0 @@ -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 -@@ -887,6 +887,17 @@ 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-2.6.38/305-mips_module_reloc.patch b/target/linux/generic/patches-2.6.38/305-mips_module_reloc.patch deleted file mode 100644 index 5513962cb2..0000000000 --- a/target/linux/generic/patches-2.6.38/305-mips_module_reloc.patch +++ /dev/null @@ -1,370 +0,0 @@ ---- 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-2.6.38/306-mips_mem_functions_performance.patch b/target/linux/generic/patches-2.6.38/306-mips_mem_functions_performance.patch deleted file mode 100644 index e4324717b4..0000000000 --- a/target/linux/generic/patches-2.6.38/306-mips_mem_functions_performance.patch +++ /dev/null @@ -1,83 +0,0 @@ ---- 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-2.6.38/307-mips_oprofile_fix.patch b/target/linux/generic/patches-2.6.38/307-mips_oprofile_fix.patch deleted file mode 100644 index f83c96bb81..0000000000 --- a/target/linux/generic/patches-2.6.38/307-mips_oprofile_fix.patch +++ /dev/null @@ -1,35 +0,0 @@ ---- 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-2.6.38/310-arm_module_unresolved_weak_sym.patch b/target/linux/generic/patches-2.6.38/310-arm_module_unresolved_weak_sym.patch deleted file mode 100644 index fe7027c070..0000000000 --- a/target/linux/generic/patches-2.6.38/310-arm_module_unresolved_weak_sym.patch +++ /dev/null @@ -1,13 +0,0 @@ ---- a/arch/arm/kernel/module.c -+++ b/arch/arm/kernel/module.c -@@ -98,6 +98,10 @@ 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-2.6.38/311-arm_update_mach_types.patch b/target/linux/generic/patches-2.6.38/311-arm_update_mach_types.patch deleted file mode 100644 index 543900348d..0000000000 --- a/target/linux/generic/patches-2.6.38/311-arm_update_mach_types.patch +++ /dev/null @@ -1,260 +0,0 @@ ---- 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: Mon Feb 7 08:59:27 2011 -+# Last update: Tue Mar 1 10:53:16 2011 - # - # machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number - # -@@ -1319,7 +1319,6 @@ 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 - hynet_app MACH_HYNET_APP HYNET_APP 1320 - msm7200 MACH_MSM7200 MSM7200 1321 - msm7600 MACH_MSM7600 MSM7600 1322 -@@ -1777,7 +1776,6 @@ 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 - vandihud MACH_VANDIHUD VANDIHUD 1790 - magx_e8 MACH_MAGX_E8 MAGX_E8 1791 - magx_z6 MACH_MAGX_Z6 MAGX_Z6 1792 -@@ -1877,7 +1875,6 @@ 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 - kixvp435 MACH_KIXVP435 KIXVP435 1890 - kixnp435 MACH_KIXNP435 KIXNP435 1891 - africa MACH_AFRICA AFRICA 1892 -@@ -2308,7 +2305,6 @@ 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 - smdk6442 MACH_SMDK6442 SMDK6442 2324 - openrd_base MACH_OPENRD_BASE OPENRD_BASE 2325 - incredible MACH_INCREDIBLE INCREDIBLE 2326 -@@ -2374,7 +2370,6 @@ 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 - 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 +2441,6 @@ 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 - glittertind MACH_GLITTERTIND GLITTERTIND 2463 - omap_zoom3 MACH_OMAP_ZOOM3 OMAP_ZOOM3 2464 - omap_3630sdp MACH_OMAP_3630SDP OMAP_3630SDP 2465 -@@ -2498,7 +2492,6 @@ 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 - at91sam9263nit MACH_AT91SAM9263NIT AT91SAM9263NIT 2515 - ccmx51 MACH_CCMX51 CCMX51 2516 - ccmx51js MACH_CCMX51JS CCMX51JS 2517 -@@ -2561,7 +2554,6 @@ 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_x37 MACH_RIOT_X37 RIOT_X37 2578 - mega25mx MACH_MEGA25MX MEGA25MX 2579 - benzina2 MACH_BENZINA2 BENZINA2 2580 -@@ -2582,7 +2574,6 @@ 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 - smartmeter_dl MACH_SMARTMETER_DL SMARTMETER_DL 2599 - wzl6410 MACH_WZL6410 WZL6410 2600 - wzl6410m MACH_WZL6410M WZL6410M 2601 -@@ -2591,7 +2582,6 @@ 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 - vdssw MACH_VDSSW VDSSW 2608 - romulus MACH_ROMULUS ROMULUS 2609 - omap_magic MACH_OMAP_MAGIC OMAP_MAGIC 2610 -@@ -2683,7 +2673,6 @@ 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 - tokyo MACH_TOKYO TOKYO 2700 - msm7201a_surf MACH_MSM7201A_SURF MSM7201A_SURF 2701 - msm7201a_ffa MACH_MSM7201A_FFA MSM7201A_FFA 2702 -@@ -2741,7 +2730,6 @@ wbd222 MACH_WBD222 WBD222 2753 - mt65xx MACH_MT65XX MT65XX 2754 - msm8x60_surf MACH_MSM8X60_SURF MSM8X60_SURF 2755 - msm8x60_sim MACH_MSM8X60_SIM MSM8X60_SIM 2756 --vmc300 MACH_VMC300 VMC300 2757 - tcc8000_sdk MACH_TCC8000_SDK TCC8000_SDK 2758 - nanos MACH_NANOS NANOS 2759 - stamp9g10 MACH_STAMP9G10 STAMP9G10 2760 -@@ -2750,7 +2738,6 @@ 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 - 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 +2748,6 @@ 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 - olympus MACH_OLYMPUS OLYMPUS 2778 - vortex MACH_VORTEX VORTEX 2779 - s5pc200 MACH_S5PC200 S5PC200 2780 -@@ -2788,7 +2774,6 @@ 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 - pcbfp0001 MACH_PCBFP0001 PCBFP0001 2805 - speedy MACH_SPEEDY SPEEDY 2806 - chrysaor MACH_CHRYSAOR CHRYSAOR 2807 -@@ -2812,7 +2797,6 @@ 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 - wlbargn MACH_WLBARGN WLBARGN 2829 - bm170 MACH_BM170 BM170 2830 - netspace_mini_v2 MACH_NETSPACE_MINI_V2 NETSPACE_MINI_V2 2831 -@@ -2879,7 +2863,6 @@ 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_vogue MACH_TEGRA_VOGUE TEGRA_VOGUE 2896 - tegra_e1165 MACH_TEGRA_E1165 TEGRA_E1165 2897 - simplenet MACH_SIMPLENET SIMPLENET 2898 -@@ -2969,7 +2952,6 @@ 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 - mx50_rdp MACH_MX50_RDP MX50_RDP 2988 - universal_c210 MACH_UNIVERSAL_C210 UNIVERSAL_C210 2989 - real6410 MACH_REAL6410 REAL6410 2990 -@@ -3017,12 +2999,10 @@ 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 - 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 - htcmega MACH_HTCMEGA HTCMEGA 3041 - tricorder MACH_TRICORDER TRICORDER 3042 - tx28 MACH_TX28 TX28 3043 -@@ -3062,7 +3042,6 @@ 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 - antares MACH_ANTARES ANTARES 3082 - wb40n MACH_WB40N WB40N 3083 - herring MACH_HERRING HERRING 3084 -@@ -3109,9 +3088,7 @@ 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 - acmenetusfoxg20 MACH_ACMENETUSFOXG20 ACMENETUSFOXG20 3129 --htcwillow MACH_HTCWILLOW HTCWILLOW 3130 - fwbd_0404 MACH_FWBD_0404 FWBD_0404 3131 - hdgu MACH_HDGU HDGU 3132 - pyramid MACH_PYRAMID PYRAMID 3133 -@@ -3162,7 +3139,6 @@ 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 - shooter MACH_SHOOTER SHOOTER 3182 - spade_lte MACH_SPADE_LTE SPADE_LTE 3183 - philhwani MACH_PHILHWANI PHILHWANI 3184 -@@ -3174,13 +3150,11 @@ 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 - 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 - ts47xx MACH_TS47XX TS47XX 3200 - da850_k5 MACH_DA850_K5 DA850_K5 3201 - ax502 MACH_AX502 AX502 3202 -@@ -3316,3 +3290,51 @@ rover_g8 MACH_ROVER_G8 ROVER_G8 3335 - t5388p MACH_T5388P T5388P 3336 - dingo MACH_DINGO DINGO 3337 - goflexhome MACH_GOFLEXHOME GOFLEXHOME 3338 -+lanreadyfn511 MACH_LANREADYFN511 LANREADYFN511 3340 -+omap3_baia MACH_OMAP3_BAIA OMAP3_BAIA 3341 -+omap3smartdisplay MACH_OMAP3SMARTDISPLAY OMAP3SMARTDISPLAY 3342 -+xilinx MACH_XILINX XILINX 3343 -+a2f MACH_A2F A2F 3344 -+sky25 MACH_SKY25 SKY25 3345 -+ccmx53 MACH_CCMX53 CCMX53 3346 -+ccmx53js MACH_CCMX53JS CCMX53JS 3347 -+ccwmx53 MACH_CCWMX53 CCWMX53 3348 -+ccwmx53js MACH_CCWMX53JS CCWMX53JS 3349 -+frisms MACH_FRISMS FRISMS 3350 -+msm7x27a_ffa MACH_MSM7X27A_FFA MSM7X27A_FFA 3351 -+msm7x27a_surf MACH_MSM7X27A_SURF MSM7X27A_SURF 3352 -+msm7x27a_rumi3 MACH_MSM7X27A_RUMI3 MSM7X27A_RUMI3 3353 -+dimmsam9g20 MACH_DIMMSAM9G20 DIMMSAM9G20 3354 -+dimm_imx28 MACH_DIMM_IMX28 DIMM_IMX28 3355 -+amk_a4 MACH_AMK_A4 AMK_A4 3356 -+gnet_sgme MACH_GNET_SGME GNET_SGME 3357 -+shooter_u MACH_SHOOTER_U SHOOTER_U 3358 -+vmx53 MACH_VMX53 VMX53 3359 -+rhino MACH_RHINO RHINO 3360 -+armlex4210 MACH_ARMLEX4210 ARMLEX4210 3361 -+swarcoextmodem MACH_SWARCOEXTMODEM SWARCOEXTMODEM 3362 -+snowball MACH_SNOWBALL SNOWBALL 3363 -+pcm049 MACH_PCM049 PCM049 3364 -+vigor MACH_VIGOR VIGOR 3365 -+oslo_amundsen MACH_OSLO_AMUNDSEN OSLO_AMUNDSEN 3366 -+gsl_diamond MACH_GSL_DIAMOND GSL_DIAMOND 3367 -+cv2201 MACH_CV2201 CV2201 3368 -+cv2202 MACH_CV2202 CV2202 3369 -+cv2203 MACH_CV2203 CV2203 3370 -+vit_ibox MACH_VIT_IBOX VIT_IBOX 3371 -+dm6441_esp MACH_DM6441_ESP DM6441_ESP 3372 -+at91sam9x5ek MACH_AT91SAM9X5EK AT91SAM9X5EK 3373 -+libra MACH_LIBRA LIBRA 3374 -+easycrrh MACH_EASYCRRH EASYCRRH 3375 -+tripel MACH_TRIPEL TRIPEL 3376 -+endian_mini MACH_ENDIAN_MINI ENDIAN_MINI 3377 -+xilinx_ep107 MACH_XILINX_EP107 XILINX_EP107 3378 -+nuri MACH_NURI NURI 3379 -+janus MACH_JANUS JANUS 3380 -+ddnas MACH_DDNAS DDNAS 3381 -+tag MACH_TAG TAG 3382 -+tagw MACH_TAGW TAGW 3383 -+nitrogen_vm_imx51 MACH_NITROGEN_VM_IMX51 NITROGEN_VM_IMX51 3384 -+viprinet MACH_VIPRINET VIPRINET 3385 -+bockw MACH_BOCKW BOCKW 3386 -+eva2000 MACH_EVA2000 EVA2000 3387 diff --git a/target/linux/generic/patches-2.6.38/320-ppc4xx_optimization.patch b/target/linux/generic/patches-2.6.38/320-ppc4xx_optimization.patch deleted file mode 100644 index 49d3659286..0000000000 --- a/target/linux/generic/patches-2.6.38/320-ppc4xx_optimization.patch +++ /dev/null @@ -1,31 +0,0 @@ -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 - $(obj)/treeboot-iss4xx.o: BOOTCFLAGS += -mcpu=405 diff --git a/target/linux/generic/patches-2.6.38/321-powerpc_crtsavres_prereq.patch b/target/linux/generic/patches-2.6.38/321-powerpc_crtsavres_prereq.patch deleted file mode 100644 index 941aa909de..0000000000 --- a/target/linux/generic/patches-2.6.38/321-powerpc_crtsavres_prereq.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/arch/powerpc/Makefile -+++ b/arch/powerpc/Makefile -@@ -94,7 +94,6 @@ else - endif - endif - --KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o - - ifeq ($(CONFIG_TUNE_CELL),y) - KBUILD_CFLAGS += $(call cc-option,-mtune=cell) diff --git a/target/linux/generic/patches-2.6.38/322-powerpc_unused_var.patch b/target/linux/generic/patches-2.6.38/322-powerpc_unused_var.patch deleted file mode 100644 index a9eed21776..0000000000 --- a/target/linux/generic/patches-2.6.38/322-powerpc_unused_var.patch +++ /dev/null @@ -1,61 +0,0 @@ ---- a/arch/powerpc/kernel/align.c -+++ b/arch/powerpc/kernel/align.c -@@ -701,7 +701,7 @@ static int emulate_vsx(unsigned char __u - - int fix_alignment(struct pt_regs *regs) - { -- unsigned int instr, nb, flags, instruction = 0; -+ unsigned int instr, nb, flags, instruction __maybe_unused = 0; - unsigned int reg, areg; - unsigned int dsisr; - unsigned char __user *addr; ---- a/arch/powerpc/kernel/signal_32.c -+++ b/arch/powerpc/kernel/signal_32.c -@@ -935,7 +935,7 @@ long sys_swapcontext(struct ucontext __u - struct ucontext __user *new_ctx, - int ctx_size, int r6, int r7, int r8, struct pt_regs *regs) - { -- unsigned char tmp; -+ unsigned char tmp __maybe_unused; - int ctx_has_vsx_region = 0; - - #ifdef CONFIG_PPC64 -@@ -1076,7 +1076,7 @@ int sys_debug_setcontext(struct ucontext - { - struct sig_dbg_op op; - int i; -- unsigned char tmp; -+ unsigned char tmp __maybe_unused; - unsigned long new_msr = regs->msr; - #ifdef CONFIG_PPC_ADV_DEBUG_REGS - unsigned long new_dbcr0 = current->thread.dbcr0; ---- a/arch/powerpc/mm/mem.c -+++ b/arch/powerpc/mm/mem.c -@@ -171,7 +171,7 @@ void __init do_init_bootmem(void) - unsigned long start, bootmap_pages; - unsigned long total_pages; - struct memblock_region *reg; -- int boot_mapsize; -+ int boot_mapsize __maybe_unused; - - max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT; - total_pages = (memblock_end_of_DRAM() - memstart_addr) >> PAGE_SHIFT; ---- a/arch/powerpc/sysdev/qe_lib/qe_ic.c -+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c -@@ -327,7 +327,7 @@ void __init qe_ic_init(struct device_nod - { - struct qe_ic *qe_ic; - struct resource res; -- u32 temp = 0, ret, high_active = 0; -+ u32 temp = 0, ret; - - ret = of_address_to_resource(node, 0, &res); - if (ret) -@@ -376,7 +376,6 @@ void __init qe_ic_init(struct device_nod - /* choose destination signal for highest priority interrupt */ - if (flags & QE_IC_HIGH_SIGNAL) { - temp |= (SIGNAL_HIGH << CICR_HPIT_SHIFT); -- high_active = 1; - } - - qe_ic_write(qe_ic->regs, QEIC_CICR, temp); diff --git a/target/linux/generic/patches-2.6.38/400-rootfs_split.patch b/target/linux/generic/patches-2.6.38/400-rootfs_split.patch deleted file mode 100644 index 9b7c2dc0b7..0000000000 --- a/target/linux/generic/patches-2.6.38/400-rootfs_split.patch +++ /dev/null @@ -1,332 +0,0 @@ ---- 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 +638,155 @@ 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; -+ struct mtd_part *spart; -+ int ret, split_offset = 0; -+ -+ spart = PART(rpart); -+ ret = split_squashfs(master, spart->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)); -+ strcpy((char *)&dpart[1], ROOTFS_SPLIT_NAME); -+ dpart->name = (unsigned char *)&dpart[1]; -+ -+ dpart->size = rpart->size - (split_offset - spart->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 -@@ -652,6 +803,9 @@ int add_mtd_partitions(struct mtd_info * - struct mtd_part *slave; - uint64_t cur_offset = 0; - int i; -+#ifdef CONFIG_MTD_ROOTFS_SPLIT -+ int ret; -+#endif - - printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name); - -@@ -666,6 +820,21 @@ 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 +842,32 @@ 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/mtdchar.c -+++ b/drivers/mtd/mtdchar.c -@@ -956,6 +956,13 @@ static int mtd_ioctl(struct file *file, - break; - } - #endif -+#ifdef CONFIG_MTD_PARTITIONS -+ case MTDREFRESH: -+ { -+ ret = refresh_mtd_partitions(mtd); -+ break; -+ } -+#endif - - default: - ret = -ENOTTY; ---- 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 */ -+ const 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', 50) - - /* - * Obsolete legacy interface. Keep it in order not to break userspace diff --git a/target/linux/generic/patches-2.6.38/401-partial_eraseblock_write.patch b/target/linux/generic/patches-2.6.38/401-partial_eraseblock_write.patch deleted file mode 100644 index 873c0d1cb1..0000000000 --- a/target/linux/generic/patches-2.6.38/401-partial_eraseblock_write.patch +++ /dev/null @@ -1,145 +0,0 @@ ---- 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-2.6.38/410-mtd_info_move_forward_decl.patch b/target/linux/generic/patches-2.6.38/410-mtd_info_move_forward_decl.patch deleted file mode 100644 index 13f0a217d4..0000000000 --- a/target/linux/generic/patches-2.6.38/410-mtd_info_move_forward_decl.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- 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-2.6.38/420-redboot_space.patch b/target/linux/generic/patches-2.6.38/420-redboot_space.patch deleted file mode 100644 index fb6700b07e..0000000000 --- a/target/linux/generic/patches-2.6.38/420-redboot_space.patch +++ /dev/null @@ -1,30 +0,0 @@ ---- 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-2.6.38/421-redboot_boardconfig.patch b/target/linux/generic/patches-2.6.38/421-redboot_boardconfig.patch deleted file mode 100644 index 9188cee29c..0000000000 --- a/target/linux/generic/patches-2.6.38/421-redboot_boardconfig.patch +++ /dev/null @@ -1,60 +0,0 @@ ---- 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-2.6.38/430-mtd_myloader_partition_parser.patch b/target/linux/generic/patches-2.6.38/430-mtd_myloader_partition_parser.patch deleted file mode 100644 index 6e3e3b7085..0000000000 --- a/target/linux/generic/patches-2.6.38/430-mtd_myloader_partition_parser.patch +++ /dev/null @@ -1,35 +0,0 @@ ---- 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-2.6.38/440-block2mtd_init.patch b/target/linux/generic/patches-2.6.38/440-block2mtd_init.patch deleted file mode 100644 index f8495b4e80..0000000000 --- a/target/linux/generic/patches-2.6.38/440-block2mtd_init.patch +++ /dev/null @@ -1,116 +0,0 @@ ---- 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 = 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-2.6.38/441-block2mtd_refresh.patch b/target/linux/generic/patches-2.6.38/441-block2mtd_refresh.patch deleted file mode 100644 index 24ee22f5f6..0000000000 --- a/target/linux/generic/patches-2.6.38/441-block2mtd_refresh.patch +++ /dev/null @@ -1,291 +0,0 @@ ---- 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 +246,110 @@ 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)) { -+ dev_t devt; -+ -+ /* We might not have rootfs mounted at this point. Try -+ to resolve the device name by other means. */ -+ -+ 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, mtd); -+ 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 +357,17 @@ 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 +392,7 @@ 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 = name; diff --git a/target/linux/generic/patches-2.6.38/442-block2mtd_probe.patch b/target/linux/generic/patches-2.6.38/442-block2mtd_probe.patch deleted file mode 100644 index 780dd28fd2..0000000000 --- a/target/linux/generic/patches-2.6.38/442-block2mtd_probe.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/drivers/mtd/devices/block2mtd.c -+++ b/drivers/mtd/devices/block2mtd.c -@@ -269,6 +269,7 @@ 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(); - devt = name_to_dev_t(dev->devname); - if (devt) - bdev = blkdev_get_by_dev(devt, mode, dev); diff --git a/target/linux/generic/patches-2.6.38/450-mtd_plat_nand_chip_fixup.patch b/target/linux/generic/patches-2.6.38/450-mtd_plat_nand_chip_fixup.patch deleted file mode 100644 index 8ad32a8aad..0000000000 --- a/target/linux/generic/patches-2.6.38/450-mtd_plat_nand_chip_fixup.patch +++ /dev/null @@ -1,37 +0,0 @@ ---- - 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-2.6.38/451-mtd_fix_nand_correct_data_return_code.patch b/target/linux/generic/patches-2.6.38/451-mtd_fix_nand_correct_data_return_code.patch deleted file mode 100644 index f630059e87..0000000000 --- a/target/linux/generic/patches-2.6.38/451-mtd_fix_nand_correct_data_return_code.patch +++ /dev/null @@ -1,12 +0,0 @@ ---- 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-2.6.38/460-cfi_show_amd_extended_table_version.patch b/target/linux/generic/patches-2.6.38/460-cfi_show_amd_extended_table_version.patch deleted file mode 100644 index 2369a19fac..0000000000 --- a/target/linux/generic/patches-2.6.38/460-cfi_show_amd_extended_table_version.patch +++ /dev/null @@ -1,15 +0,0 @@ ---- 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-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch b/target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch deleted file mode 100644 index 91cdd9763e..0000000000 --- a/target/linux/generic/patches-2.6.38/470-mtd_m25p80_add_pm25lv_flash_support.patch +++ /dev/null @@ -1,39 +0,0 @@ ---- 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-2.6.38/471-mtd_m25p80_add_en25f32_chip_support.patch b/target/linux/generic/patches-2.6.38/471-mtd_m25p80_add_en25f32_chip_support.patch deleted file mode 100644 index d0b3496222..0000000000 --- a/target/linux/generic/patches-2.6.38/471-mtd_m25p80_add_en25f32_chip_support.patch +++ /dev/null @@ -1,12 +0,0 @@ ---- 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-2.6.38/472-mtd_m25p80_add_MX25L1606E_support.patch b/target/linux/generic/patches-2.6.38/472-mtd_m25p80_add_MX25L1606E_support.patch deleted file mode 100644 index b5937a3557..0000000000 --- a/target/linux/generic/patches-2.6.38/472-mtd_m25p80_add_MX25L1606E_support.patch +++ /dev/null @@ -1,20 +0,0 @@ -From da9c4c174ad5086e5ccff23a5ffd1f9750b77c85 Mon Sep 17 00:00:00 2001 -From: Gabor Juhos <juhosg@openwrt.org> -Date: Thu, 24 Mar 2011 21:43:48 +0100 -Subject: [PATCH] mtd: m25p80: add support for the MX25L1606E chip - -Signed-off-by: Gabor Juhos <juhosg@openwrt.org> ---- - drivers/mtd/devices/m25p80.c | 1 + - 1 files changed, 1 insertions(+), 0 deletions(-) - ---- a/drivers/mtd/devices/m25p80.c -+++ b/drivers/mtd/devices/m25p80.c -@@ -670,6 +670,7 @@ static const struct spi_device_id m25p_i - /* Macronix */ - { "mx25l4005a", INFO(0xc22013, 0, 64 * 1024, 8, SECT_4K) }, - { "mx25l8005", INFO(0xc22014, 0, 64 * 1024, 16, 0) }, -+ { "mx25l1606e", INFO(0xc22015, 0, 64 * 1024, 32, SECT_4K) }, - { "mx25l3205d", INFO(0xc22016, 0, 64 * 1024, 64, 0) }, - { "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128, 0) }, - { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) }, diff --git a/target/linux/generic/patches-2.6.38/473-mtd_m25p80_add_w25q128.patch b/target/linux/generic/patches-2.6.38/473-mtd_m25p80_add_w25q128.patch deleted file mode 100644 index 9114555e61..0000000000 --- a/target/linux/generic/patches-2.6.38/473-mtd_m25p80_add_w25q128.patch +++ /dev/null @@ -1,10 +0,0 @@ ---- a/drivers/mtd/devices/m25p80.c -+++ b/drivers/mtd/devices/m25p80.c -@@ -746,6 +746,7 @@ static const struct spi_device_id m25p_i - { "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) }, - { "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) }, - { "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) }, -+ { "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) }, - - /* Catalyst / On Semiconductor -- non-JEDEC */ - { "cat25c11", CAT25_INFO( 16, 8, 16, 1) }, diff --git a/target/linux/generic/patches-2.6.38/474-mtd_concat_sync_fix.patch b/target/linux/generic/patches-2.6.38/474-mtd_concat_sync_fix.patch deleted file mode 100644 index ff3759e220..0000000000 --- a/target/linux/generic/patches-2.6.38/474-mtd_concat_sync_fix.patch +++ /dev/null @@ -1,12 +0,0 @@ ---- a/drivers/mtd/mtdconcat.c -+++ b/drivers/mtd/mtdconcat.c -@@ -619,7 +619,8 @@ static void concat_sync(struct mtd_info - - for (i = 0; i < concat->num_subdev; i++) { - struct mtd_info *subdev = concat->subdev[i]; -- subdev->sync(subdev); -+ if (subdev->sync) -+ subdev->sync(subdev); - } - } - diff --git a/target/linux/generic/patches-2.6.38/500-yaffs_support.patch b/target/linux/generic/patches-2.6.38/500-yaffs_support.patch deleted file mode 100644 index e7c87b8b13..0000000000 --- a/target/linux/generic/patches-2.6.38/500-yaffs_support.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- 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-2.6.38/501-yaffs_cvs_2009_04_24.patch b/target/linux/generic/patches-2.6.38/501-yaffs_cvs_2009_04_24.patch deleted file mode 100644 index c334b17d08..0000000000 --- a/target/linux/generic/patches-2.6.38/501-yaffs_cvs_2009_04_24.patch +++ /dev/null @@ -1,12344 +0,0 @@ ---- 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-2.6.38/502-yaffs_git_2010_10_20.patch b/target/linux/generic/patches-2.6.38/502-yaffs_git_2010_10_20.patch deleted file mode 100644 index c9f1eadb10..0000000000 --- a/target/linux/generic/patches-2.6.38/502-yaffs_git_2010_10_20.patch +++ /dev/null @@ -1,27068 +0,0 @@ ---- 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 - -@@ -177,6 +176,10 @@ 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-2.6.38/503-yaffs_symlink_bug.patch b/target/linux/generic/patches-2.6.38/503-yaffs_symlink_bug.patch deleted file mode 100644 index dabf2871bf..0000000000 --- a/target/linux/generic/patches-2.6.38/503-yaffs_symlink_bug.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- 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-2.6.38/504-yaffs_mutex_fix.patch b/target/linux/generic/patches-2.6.38/504-yaffs_mutex_fix.patch deleted file mode 100644 index b34b12f785..0000000000 --- a/target/linux/generic/patches-2.6.38/504-yaffs_mutex_fix.patch +++ /dev/null @@ -1,20 +0,0 @@ ---- 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-2.6.38/510-jffs2_make_lzma_available.patch b/target/linux/generic/patches-2.6.38/510-jffs2_make_lzma_available.patch deleted file mode 100644 index f1ad92d7c0..0000000000 --- a/target/linux/generic/patches-2.6.38/510-jffs2_make_lzma_available.patch +++ /dev/null @@ -1,5142 +0,0 @@ ---- 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) -+{ -+ 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) -+{ -+ 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)) -@@ -73,6 +83,8 @@ 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-2.6.38/511-debloat_lzma.patch b/target/linux/generic/patches-2.6.38/511-debloat_lzma.patch deleted file mode 100644 index 1e41661ebb..0000000000 --- a/target/linux/generic/patches-2.6.38/511-debloat_lzma.patch +++ /dev/null @@ -1,485 +0,0 @@ ---- a/include/linux/lzma/LzmaDec.h -+++ b/include/linux/lzma/LzmaDec.h -@@ -31,14 +31,6 @@ typedef struct _CLzmaProps - 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 ---------- */ - -@@ -70,8 +62,6 @@ typedef struct - - #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. */ -@@ -108,97 +98,6 @@ typedef enum - - /* 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 ---- a/lib/lzma/LzmaDec.c -+++ b/lib/lzma/LzmaDec.c -@@ -682,7 +682,7 @@ static void LzmaDec_InitRc(CLzmaDec *p, - p->needFlush = 0; - } - --void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) -+static void LzmaDec_InitDicAndState(CLzmaDec *p, Bool initDic, Bool initState) - { - p->needFlush = 1; - p->remainLen = 0; -@@ -698,7 +698,7 @@ void LzmaDec_InitDicAndState(CLzmaDec *p - p->needInitState = 1; - } - --void LzmaDec_Init(CLzmaDec *p) -+static void LzmaDec_Init(CLzmaDec *p) - { - p->dicPos = 0; - LzmaDec_InitDicAndState(p, True, True); -@@ -716,7 +716,7 @@ static void LzmaDec_InitStateReal(CLzmaD - p->needInitState = 0; - } - --SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, -+static SRes LzmaDec_DecodeToDic(CLzmaDec *p, SizeT dicLimit, const Byte *src, SizeT *srcLen, - ELzmaFinishMode finishMode, ELzmaStatus *status) - { - SizeT inSize = *srcLen; -@@ -837,7 +837,7 @@ SRes LzmaDec_DecodeToDic(CLzmaDec *p, Si - 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) -+static __maybe_unused SRes LzmaDec_DecodeToBuf(CLzmaDec *p, Byte *dest, SizeT *destLen, const Byte *src, SizeT *srcLen, ELzmaFinishMode finishMode, ELzmaStatus *status) - { - SizeT outSize = *destLen; - SizeT inSize = *srcLen; -@@ -877,7 +877,7 @@ SRes LzmaDec_DecodeToBuf(CLzmaDec *p, By - } - } - --void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) -+static void LzmaDec_FreeProbs(CLzmaDec *p, ISzAlloc *alloc) - { - alloc->Free(alloc, p->probs); - p->probs = 0; -@@ -889,13 +889,13 @@ static void LzmaDec_FreeDict(CLzmaDec *p - p->dic = 0; - } - --void LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) -+static void __maybe_unused LzmaDec_Free(CLzmaDec *p, ISzAlloc *alloc) - { - LzmaDec_FreeProbs(p, alloc); - LzmaDec_FreeDict(p, alloc); - } - --SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) -+static SRes LzmaProps_Decode(CLzmaProps *p, const Byte *data, unsigned size) - { - UInt32 dicSize; - Byte d; -@@ -935,7 +935,7 @@ static SRes LzmaDec_AllocateProbs2(CLzma - return SZ_OK; - } - --SRes LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) -+static SRes __maybe_unused LzmaDec_AllocateProbs(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) - { - CLzmaProps propNew; - RINOK(LzmaProps_Decode(&propNew, props, propsSize)); -@@ -944,7 +944,7 @@ SRes LzmaDec_AllocateProbs(CLzmaDec *p, - return SZ_OK; - } - --SRes LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) -+static SRes __maybe_unused LzmaDec_Allocate(CLzmaDec *p, const Byte *props, unsigned propsSize, ISzAlloc *alloc) - { - CLzmaProps propNew; - SizeT dicBufSize; ---- a/include/linux/lzma/LzmaEnc.h -+++ b/include/linux/lzma/LzmaEnc.h -@@ -31,9 +31,6 @@ typedef struct _CLzmaEncProps - } CLzmaEncProps; - - void LzmaEncProps_Init(CLzmaEncProps *p); --void LzmaEncProps_Normalize(CLzmaEncProps *p); --UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); -- - - /* ---------- CLzmaEncHandle Interface ---------- */ - -@@ -53,26 +50,9 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc * - 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 ---- a/lib/lzma/LzmaEnc.c -+++ b/lib/lzma/LzmaEnc.c -@@ -53,7 +53,7 @@ void LzmaEncProps_Init(CLzmaEncProps *p) - p->writeEndMark = 0; - } - --void LzmaEncProps_Normalize(CLzmaEncProps *p) -+static void LzmaEncProps_Normalize(CLzmaEncProps *p) - { - int level = p->level; - if (level < 0) level = 5; -@@ -76,7 +76,7 @@ void LzmaEncProps_Normalize(CLzmaEncProp - #endif - } - --UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) -+static UInt32 __maybe_unused LzmaEncProps_GetDictSize(const CLzmaEncProps *props2) - { - CLzmaEncProps props = *props2; - LzmaEncProps_Normalize(&props); -@@ -93,7 +93,7 @@ UInt32 LzmaEncProps_GetDictSize(const CL - - #define BSR2_RET(pos, res) { unsigned long i; _BitScanReverse(&i, (pos)); res = (i + i) + ((pos >> (i - 1)) & 1); } - --UInt32 GetPosSlot1(UInt32 pos) -+static UInt32 GetPosSlot1(UInt32 pos) - { - UInt32 res; - BSR2_RET(pos, res); -@@ -107,7 +107,7 @@ UInt32 GetPosSlot1(UInt32 pos) - #define kNumLogBits (9 + (int)sizeof(size_t) / 2) - #define kDicLogSizeMaxCompress ((kNumLogBits - 1) * 2 + 7) - --void LzmaEnc_FastPosInit(Byte *g_FastPos) -+static void LzmaEnc_FastPosInit(Byte *g_FastPos) - { - int c = 2, slotFast; - g_FastPos[0] = 0; -@@ -339,7 +339,7 @@ typedef struct - CSaveState saveState; - } CLzmaEnc; - --void LzmaEnc_SaveState(CLzmaEncHandle pp) -+static void __maybe_unused LzmaEnc_SaveState(CLzmaEncHandle pp) - { - CLzmaEnc *p = (CLzmaEnc *)pp; - CSaveState *dest = &p->saveState; -@@ -365,7 +365,7 @@ void LzmaEnc_SaveState(CLzmaEncHandle pp - memcpy(dest->litProbs, p->litProbs, (0x300 << p->lclp) * sizeof(CLzmaProb)); - } - --void LzmaEnc_RestoreState(CLzmaEncHandle pp) -+static void __maybe_unused LzmaEnc_RestoreState(CLzmaEncHandle pp) - { - CLzmaEnc *dest = (CLzmaEnc *)pp; - const CSaveState *p = &dest->saveState; -@@ -600,7 +600,7 @@ static void LitEnc_EncodeMatched(CRangeE - while (symbol < 0x10000); - } - --void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) -+static void LzmaEnc_InitPriceTables(UInt32 *ProbPrices) - { - UInt32 i; - for (i = (1 << kNumMoveReducingBits) / 2; i < kBitModelTotal; i += (1 << kNumMoveReducingBits)) -@@ -1676,7 +1676,7 @@ static void FillDistancesPrices(CLzmaEnc - p->matchPriceCount = 0; - } - --void LzmaEnc_Construct(CLzmaEnc *p) -+static void LzmaEnc_Construct(CLzmaEnc *p) - { - RangeEnc_Construct(&p->rc); - MatchFinder_Construct(&p->matchFinderBase); -@@ -1709,7 +1709,7 @@ CLzmaEncHandle LzmaEnc_Create(ISzAlloc * - return p; - } - --void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) -+static void LzmaEnc_FreeLits(CLzmaEnc *p, ISzAlloc *alloc) - { - alloc->Free(alloc, p->litProbs); - alloc->Free(alloc, p->saveState.litProbs); -@@ -2074,7 +2074,7 @@ SRes LzmaEnc_MemPrepare(CLzmaEncHandle p - return LzmaEnc_AllocAndInit(p, keepWindowSize, alloc, allocBig); - } - --void LzmaEnc_Finish(CLzmaEncHandle pp) -+static void LzmaEnc_Finish(CLzmaEncHandle pp) - { - #ifndef _7ZIP_ST - CLzmaEnc *p = (CLzmaEnc *)pp; -@@ -2108,7 +2108,7 @@ static size_t MyWrite(void *pp, const vo - } - - --UInt32 LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) -+static UInt32 __maybe_unused LzmaEnc_GetNumAvailableBytes(CLzmaEncHandle pp) - { - const CLzmaEnc *p = (CLzmaEnc *)pp; - return p->matchFinder.GetNumAvailableBytes(p->matchFinderObj); -@@ -2120,7 +2120,7 @@ const Byte *LzmaEnc_GetCurBuf(CLzmaEncHa - return p->matchFinder.GetPointerToCurrentPos(p->matchFinderObj) - p->additionalOffset; - } - --SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, -+static SRes __maybe_unused LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit, - Byte *dest, size_t *destLen, UInt32 desiredPackSize, UInt32 *unpackSize) - { - CLzmaEnc *p = (CLzmaEnc *)pp; -@@ -2248,7 +2248,7 @@ SRes LzmaEnc_MemEncode(CLzmaEncHandle pp - return res; - } - --SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, -+static __maybe_unused 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) - { ---- a/include/linux/lzma/LzFind.h -+++ b/include/linux/lzma/LzFind.h -@@ -55,11 +55,6 @@ typedef struct _CMatchFinder - - #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: -@@ -70,12 +65,6 @@ int MatchFinder_Create(CMatchFinder *p, - 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: -@@ -102,12 +91,6 @@ typedef struct _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 ---- a/lib/lzma/LzFind.c -+++ b/lib/lzma/LzFind.c -@@ -42,12 +42,12 @@ static int LzInWindow_Create(CMatchFinde - return (p->bufferBase != 0); - } - --Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } --Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } -+static Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; } -+static Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; } - --UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } -+static UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; } - --void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) -+static void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue) - { - p->posLimit -= subValue; - p->pos -= subValue; -@@ -268,7 +268,7 @@ static void MatchFinder_SetLimits(CMatch - p->posLimit = p->pos + limit; - } - --void MatchFinder_Init(CMatchFinder *p) -+static void MatchFinder_Init(CMatchFinder *p) - { - UInt32 i; - for (i = 0; i < p->hashSizeSum; i++) -@@ -287,7 +287,7 @@ static UInt32 MatchFinder_GetSubValue(CM - return (p->pos - p->historySize - 1) & kNormalizeMask; - } - --void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) -+static void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems) - { - UInt32 i; - for (i = 0; i < numItems; i++) -@@ -350,7 +350,7 @@ static UInt32 * Hc_GetMatchesSpec(UInt32 - } - } - --UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, -+static UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son, - UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue, - UInt32 *distances, UInt32 maxLen) - { -@@ -492,7 +492,7 @@ static UInt32 Bt2_MatchFinder_GetMatches - GET_MATCHES_FOOTER(offset, 1) - } - --UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+static __maybe_unused UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) - { - UInt32 offset; - GET_MATCHES_HEADER(3) -@@ -632,7 +632,7 @@ static UInt32 Hc4_MatchFinder_GetMatches - MOVE_POS_RET - } - --UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) -+static __maybe_unused UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances) - { - UInt32 offset; - GET_MATCHES_HEADER(3) -@@ -657,7 +657,7 @@ static void Bt2_MatchFinder_Skip(CMatchF - while (--num != 0); - } - --void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+static __maybe_unused void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) - { - do - { -@@ -718,7 +718,7 @@ static void Hc4_MatchFinder_Skip(CMatchF - while (--num != 0); - } - --void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) -+static __maybe_unused void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num) - { - do - { diff --git a/target/linux/generic/patches-2.6.38/512-jffs2_eofdetect.patch b/target/linux/generic/patches-2.6.38/512-jffs2_eofdetect.patch deleted file mode 100644 index eaf9489d35..0000000000 --- a/target/linux/generic/patches-2.6.38/512-jffs2_eofdetect.patch +++ /dev/null @@ -1,132 +0,0 @@ ---- 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-2.6.38/600-netfilter_layer7_2.22.patch b/target/linux/generic/patches-2.6.38/600-netfilter_layer7_2.22.patch deleted file mode 100644 index a32169d49f..0000000000 --- a/target/linux/generic/patches-2.6.38/600-netfilter_layer7_2.22.patch +++ /dev/null @@ -1,2142 +0,0 @@ ---- a/net/netfilter/Kconfig -+++ b/net/netfilter/Kconfig -@@ -946,6 +946,27 @@ 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; ®dummy = 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 */ ---- a/include/linux/netfilter/Kbuild -+++ b/include/linux/netfilter/Kbuild -@@ -40,6 +40,7 @@ header-y += xt_hashlimit.h - header-y += xt_helper.h - header-y += xt_iprange.h - header-y += xt_ipvs.h -+header-y += xt_layer7.h - header-y += xt_length.h - header-y += xt_limit.h - header-y += xt_mac.h diff --git a/target/linux/generic/patches-2.6.38/601-netfilter_layer7_pktmatch.patch b/target/linux/generic/patches-2.6.38/601-netfilter_layer7_pktmatch.patch deleted file mode 100644 index f65e301fd1..0000000000 --- a/target/linux/generic/patches-2.6.38/601-netfilter_layer7_pktmatch.patch +++ /dev/null @@ -1,108 +0,0 @@ ---- 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-2.6.38/602-netfilter_layer7_match.patch b/target/linux/generic/patches-2.6.38/602-netfilter_layer7_match.patch deleted file mode 100644 index b2e48c824f..0000000000 --- a/target/linux/generic/patches-2.6.38/602-netfilter_layer7_match.patch +++ /dev/null @@ -1,51 +0,0 @@ ---- 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-2.6.38/603-netfilter_layer7_2.6.36_fix.patch b/target/linux/generic/patches-2.6.38/603-netfilter_layer7_2.6.36_fix.patch deleted file mode 100644 index 14c5cc6982..0000000000 --- a/target/linux/generic/patches-2.6.38/603-netfilter_layer7_2.6.36_fix.patch +++ /dev/null @@ -1,61 +0,0 @@ ---- a/net/netfilter/Kconfig -+++ b/net/netfilter/Kconfig -@@ -760,6 +760,27 @@ 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 -@@ -946,26 +967,11 @@ 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-2.6.38/604-netfilter_cisco_794x_iphone.patch b/target/linux/generic/patches-2.6.38/604-netfilter_cisco_794x_iphone.patch deleted file mode 100644 index 662a499d17..0000000000 --- a/target/linux/generic/patches-2.6.38/604-netfilter_cisco_794x_iphone.patch +++ /dev/null @@ -1,118 +0,0 @@ ---- 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-2.6.38/606-netfilter_dscp_ipv6_mangle.patch b/target/linux/generic/patches-2.6.38/606-netfilter_dscp_ipv6_mangle.patch deleted file mode 100644 index 670fd220ac..0000000000 --- a/target/linux/generic/patches-2.6.38/606-netfilter_dscp_ipv6_mangle.patch +++ /dev/null @@ -1,26 +0,0 @@ -From: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> -Date: Tue, 10 May 2011 08:00:21 +0000 (+0200) -Subject: netfilter: IPv6: fix DSCP mangle code -X-Git-Tag: v2.6.39~15^2~13^2~1 -X-Git-Url: http://git390.marist.edu/cgi-bin/gitweb.cgi?p=linux-2.6.git;a=commitdiff_plain;h=1ed2f73d90fb49bcf5704aee7e9084adb882bfc5 - -netfilter: IPv6: fix DSCP mangle code - -The mask indicates the bits one wants to zero out, so it needs to be -inverted before applying to the original TOS field. - -Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> -Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> ---- - ---- a/net/netfilter/xt_DSCP.c -+++ b/net/netfilter/xt_DSCP.c -@@ -99,7 +99,7 @@ tos_tg6(struct sk_buff *skb, const struc - u_int8_t orig, nv; - - orig = ipv6_get_dsfield(iph); -- nv = (orig & info->tos_mask) ^ info->tos_value; -+ nv = (orig & ~info->tos_mask) ^ info->tos_value; - - if (orig != nv) { - if (!skb_make_writable(skb, sizeof(struct iphdr))) diff --git a/target/linux/generic/patches-2.6.38/620-sched_esfq.patch b/target/linux/generic/patches-2.6.38/620-sched_esfq.patch deleted file mode 100644 index 8a648ecc4d..0000000000 --- a/target/linux/generic/patches-2.6.38/620-sched_esfq.patch +++ /dev/null @@ -1,795 +0,0 @@ ---- 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-2.6.38/621-sched_act_connmark.patch b/target/linux/generic/patches-2.6.38/621-sched_act_connmark.patch deleted file mode 100644 index 7df4b72609..0000000000 --- a/target/linux/generic/patches-2.6.38/621-sched_act_connmark.patch +++ /dev/null @@ -1,172 +0,0 @@ ---- /dev/null -+++ b/net/sched/act_connmark.c -@@ -0,0 +1,137 @@ -+/* -+ * Copyright (c) 2011 Felix Fietkau <nbd@openwrt.org> -+ * -+ * This program is free software; you can redistribute it and/or modify it -+ * under the terms and conditions of the GNU General Public License, -+ * version 2, as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope 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., 59 Temple -+ * Place - Suite 330, Boston, MA 02111-1307 USA. -+ */ -+ -+#include <linux/module.h> -+#include <linux/init.h> -+#include <linux/kernel.h> -+#include <linux/skbuff.h> -+#include <linux/rtnetlink.h> -+#include <linux/pkt_cls.h> -+#include <linux/ip.h> -+#include <linux/ipv6.h> -+#include <net/netlink.h> -+#include <net/pkt_sched.h> -+#include <net/act_api.h> -+ -+#include <net/netfilter/nf_conntrack.h> -+#include <net/netfilter/nf_conntrack_core.h> -+ -+#define TCA_ACT_CONNMARK 20 -+ -+#define CONNMARK_TAB_MASK 3 -+static struct tcf_common *tcf_connmark_ht[CONNMARK_TAB_MASK + 1]; -+static u32 connmark_idx_gen; -+static DEFINE_RWLOCK(connmark_lock); -+ -+static struct tcf_hashinfo connmark_hash_info = { -+ .htab = tcf_connmark_ht, -+ .hmask = CONNMARK_TAB_MASK, -+ .lock = &connmark_lock, -+}; -+ -+static int tcf_connmark(struct sk_buff *skb, struct tc_action *a, -+ struct tcf_result *res) -+{ -+ struct nf_conn *c; -+ enum ip_conntrack_info ctinfo; -+ int proto; -+ int r; -+ -+ if (skb->protocol == htons(ETH_P_IP)) { -+ if (skb->len < sizeof(struct iphdr)) -+ goto out; -+ proto = PF_INET; -+ } else if (skb->protocol == htons(ETH_P_IPV6)) { -+ if (skb->len < sizeof(struct ipv6hdr)) -+ goto out; -+ proto = PF_INET6; -+ } else -+ goto out; -+ -+ r = nf_conntrack_in(dev_net(skb->dev), proto, NF_INET_PRE_ROUTING, skb); -+ if (r != NF_ACCEPT) -+ goto out; -+ -+ c = nf_ct_get(skb, &ctinfo); -+ if (!c) -+ goto out; -+ -+ skb->mark = c->mark; -+ nf_conntrack_put(skb->nfct); -+ skb->nfct = NULL; -+ -+out: -+ return TC_ACT_PIPE; -+} -+ -+static int tcf_connmark_init(struct nlattr *nla, struct nlattr *est, -+ struct tc_action *a, int ovr, int bind) -+{ -+ struct tcf_common *pc; -+ -+ pc = tcf_hash_create(0, est, a, sizeof(*pc), bind, -+ &connmark_idx_gen, &connmark_hash_info); -+ if (IS_ERR(pc)) -+ return PTR_ERR(pc); -+ -+ tcf_hash_insert(pc, &connmark_hash_info); -+ -+ return ACT_P_CREATED; -+} -+ -+static inline int tcf_connmark_cleanup(struct tc_action *a, int bind) -+{ -+ if (a->priv) -+ return tcf_hash_release(a->priv, bind, &connmark_hash_info); -+ return 0; -+} -+ -+static inline int tcf_connmark_dump(struct sk_buff *skb, struct tc_action *a, -+ int bind, int ref) -+{ -+ return skb->len; -+} -+ -+static struct tc_action_ops act_connmark_ops = { -+ .kind = "connmark", -+ .hinfo = &connmark_hash_info, -+ .type = TCA_ACT_CONNMARK, -+ .capab = TCA_CAP_NONE, -+ .owner = THIS_MODULE, -+ .act = tcf_connmark, -+ .dump = tcf_connmark_dump, -+ .cleanup = tcf_connmark_cleanup, -+ .init = tcf_connmark_init, -+ .walk = tcf_generic_walker, -+}; -+ -+MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>"); -+MODULE_DESCRIPTION("Connection tracking mark restoring"); -+MODULE_LICENSE("GPL"); -+ -+static int __init connmark_init_module(void) -+{ -+ return tcf_register_action(&act_connmark_ops); -+} -+ -+static void __exit connmark_cleanup_module(void) -+{ -+ tcf_unregister_action(&act_connmark_ops); -+} -+ -+module_init(connmark_init_module); -+module_exit(connmark_cleanup_module); ---- a/net/sched/Kconfig -+++ b/net/sched/Kconfig -@@ -559,6 +559,19 @@ config NET_ACT_CSUM - To compile this code as a module, choose M here: the - module will be called act_csum. - -+config NET_ACT_CONNMARK -+ tristate "Connection Tracking Marking" -+ depends on NET_CLS_ACT -+ depends on NF_CONNTRACK -+ depends on NF_CONNTRACK_MARK -+ ---help--- -+ Say Y here to restore the connmark from a scheduler action -+ -+ If unsure, say N. -+ -+ To compile this code as a module, choose M here: the -+ module will be called act_connmark. -+ - config NET_CLS_IND - bool "Incoming device classification" - depends on NET_CLS_U32 || NET_CLS_FW ---- a/net/sched/Makefile -+++ b/net/sched/Makefile -@@ -16,6 +16,7 @@ obj-$(CONFIG_NET_ACT_PEDIT) += act_pedit - obj-$(CONFIG_NET_ACT_SIMP) += act_simple.o - obj-$(CONFIG_NET_ACT_SKBEDIT) += act_skbedit.o - obj-$(CONFIG_NET_ACT_CSUM) += act_csum.o -+obj-$(CONFIG_NET_ACT_CONNMARK) += act_connmark.o - obj-$(CONFIG_NET_SCH_FIFO) += sch_fifo.o - obj-$(CONFIG_NET_SCH_CBQ) += sch_cbq.o - obj-$(CONFIG_NET_SCH_HTB) += sch_htb.o diff --git a/target/linux/generic/patches-2.6.38/622-sched_sfq_fix_enqueue.patch b/target/linux/generic/patches-2.6.38/622-sched_sfq_fix_enqueue.patch deleted file mode 100644 index b849106873..0000000000 --- a/target/linux/generic/patches-2.6.38/622-sched_sfq_fix_enqueue.patch +++ /dev/null @@ -1,41 +0,0 @@ -From: Eric Dumazet <eric.dumazet@gmail.com> -Date: Fri, 29 Jul 2011 19:22:42 +0000 (+0000) -Subject: sch_sfq: fix sfq_enqueue() -X-Git-Tag: v3.1-rc1~24^2~29 -X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=e1738bd9cecc5c867b0e2996470c1ff20f66ba79 - -sch_sfq: fix sfq_enqueue() - -commit 8efa88540635 (sch_sfq: avoid giving spurious NET_XMIT_CN signals) -forgot to call qdisc_tree_decrease_qlen() to signal upper levels that a -packet (from another flow) was dropped, leading to various problems. - -With help from Michal Soltys and Michal Pokrywka, who did a bisection. - -Bugzilla ref: https://bugzilla.kernel.org/show_bug.cgi?id=39372 -Debian ref: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631945 - -Reported-by: Lucas Bocchi <lucas.bocchi@gmail.com> -Reported-and-bisected-by: Michal Pokrywka <wolfmoon@o2.pl> -Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> -CC: Michal Soltys <soltys@ziu.info> -Acked-by: Patrick McHardy <kaber@trash.net> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - ---- a/net/sched/sch_sfq.c -+++ b/net/sched/sch_sfq.c -@@ -410,7 +410,12 @@ sfq_enqueue(struct sk_buff *skb, struct - /* Return Congestion Notification only if we dropped a packet - * from this flow. - */ -- return (qlen != slot->qlen) ? NET_XMIT_CN : NET_XMIT_SUCCESS; -+ if (qlen != slot->qlen) -+ return NET_XMIT_CN; -+ -+ /* As we dropped a packet, better let upper stack know this */ -+ qdisc_tree_decrease_qlen(sch, 1); -+ return NET_XMIT_SUCCESS; - } - - static struct sk_buff * diff --git a/target/linux/generic/patches-2.6.38/630-packet_socket_type.patch b/target/linux/generic/patches-2.6.38/630-packet_socket_type.patch deleted file mode 100644 index a8ad9171ec..0000000000 --- a/target/linux/generic/patches-2.6.38/630-packet_socket_type.patch +++ /dev/null @@ -1,132 +0,0 @@ -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-2.6.38/640-bridge_no_eap_forward.patch b/target/linux/generic/patches-2.6.38/640-bridge_no_eap_forward.patch deleted file mode 100644 index dac898276d..0000000000 --- a/target/linux/generic/patches-2.6.38/640-bridge_no_eap_forward.patch +++ /dev/null @@ -1,15 +0,0 @@ ---- a/net/bridge/br_input.c -+++ b/net/bridge/br_input.c -@@ -77,7 +77,11 @@ int br_handle_frame_finish(struct sk_buf - - dst = NULL; - -- if (is_multicast_ether_addr(dest)) { -+ if (skb->protocol == htons(ETH_P_PAE)) { -+ skb2 = skb; -+ /* Do not forward 802.1x/EAP frames */ -+ skb = NULL; -+ } else if (is_multicast_ether_addr(dest)) { - mdst = br_mdb_get(br, skb); - if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) { - if ((mdst && mdst->mglist) || diff --git a/target/linux/generic/patches-2.6.38/641-bridge_always_accept_eap.patch b/target/linux/generic/patches-2.6.38/641-bridge_always_accept_eap.patch deleted file mode 100644 index b3a793e49b..0000000000 --- a/target/linux/generic/patches-2.6.38/641-bridge_always_accept_eap.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/net/bridge/br_input.c -+++ b/net/bridge/br_input.c -@@ -64,7 +64,7 @@ int br_handle_frame_finish(struct sk_buf - br_multicast_rcv(br, p, skb)) - goto drop; - -- if (p->state == BR_STATE_LEARNING) -+ if ((p->state == BR_STATE_LEARNING) && skb->protocol != htons(ETH_P_PAE)) - goto drop; - - BR_INPUT_SKB_CB(skb)->brdev = br->dev; diff --git a/target/linux/generic/patches-2.6.38/642-bridge_port_isolate.patch b/target/linux/generic/patches-2.6.38/642-bridge_port_isolate.patch deleted file mode 100644 index c051a29f2d..0000000000 --- a/target/linux/generic/patches-2.6.38/642-bridge_port_isolate.patch +++ /dev/null @@ -1,103 +0,0 @@ ---- a/net/bridge/br_private.h -+++ b/net/bridge/br_private.h -@@ -132,6 +132,7 @@ struct net_bridge_port - - unsigned long flags; - #define BR_HAIRPIN_MODE 0x00000001 -+#define BR_ISOLATE_MODE 0x00000002 - - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING - u32 multicast_startup_queries_sent; ---- a/net/bridge/br_sysfs_if.c -+++ b/net/bridge/br_sysfs_if.c -@@ -159,6 +159,22 @@ static ssize_t store_hairpin_mode(struct - static BRPORT_ATTR(hairpin_mode, S_IRUGO | S_IWUSR, - show_hairpin_mode, store_hairpin_mode); - -+static ssize_t show_isolate_mode(struct net_bridge_port *p, char *buf) -+{ -+ int isolate_mode = (p->flags & BR_ISOLATE_MODE) ? 1 : 0; -+ return sprintf(buf, "%d\n", isolate_mode); -+} -+static ssize_t store_isolate_mode(struct net_bridge_port *p, unsigned long v) -+{ -+ if (v) -+ p->flags |= BR_ISOLATE_MODE; -+ else -+ p->flags &= ~BR_ISOLATE_MODE; -+ return 0; -+} -+static BRPORT_ATTR(isolate_mode, S_IRUGO | S_IWUSR, -+ show_isolate_mode, store_isolate_mode); -+ - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING - static ssize_t show_multicast_router(struct net_bridge_port *p, char *buf) - { -@@ -191,6 +207,7 @@ static struct brport_attribute *brport_a - &brport_attr_hold_timer, - &brport_attr_flush, - &brport_attr_hairpin_mode, -+ &brport_attr_isolate_mode, - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING - &brport_attr_multicast_router, - #endif ---- a/net/bridge/br_input.c -+++ b/net/bridge/br_input.c -@@ -95,7 +95,8 @@ int br_handle_frame_finish(struct sk_buf - skb2 = skb; - - br->dev->stats.multicast++; -- } else if ((dst = __br_fdb_get(br, dest)) && dst->is_local) { -+ } else if ((p->flags & BR_ISOLATE_MODE) || -+ ((dst = __br_fdb_get(br, dest)) && dst->is_local)) { - skb2 = skb; - /* Do not forward the packet since it's local. */ - skb = NULL; ---- a/net/bridge/br_forward.c -+++ b/net/bridge/br_forward.c -@@ -109,7 +109,7 @@ void br_deliver(const struct net_bridge_ - /* called with rcu_read_lock */ - void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, struct sk_buff *skb0) - { -- if (should_deliver(to, skb)) { -+ if (should_deliver(to, skb) && !(to->flags & BR_ISOLATE_MODE)) { - if (skb0) - deliver_clone(to, skb, __br_forward); - else -@@ -164,7 +164,8 @@ out: - static void br_flood(struct net_bridge *br, struct sk_buff *skb, - struct sk_buff *skb0, - void (*__packet_hook)(const struct net_bridge_port *p, -- struct sk_buff *skb)) -+ struct sk_buff *skb), -+ bool forward) - { - struct net_bridge_port *p; - struct net_bridge_port *prev; -@@ -172,6 +173,9 @@ static void br_flood(struct net_bridge * - prev = NULL; - - list_for_each_entry_rcu(p, &br->port_list, list) { -+ if (forward && (p->flags & BR_ISOLATE_MODE)) -+ continue; -+ - prev = maybe_deliver(prev, p, skb, __packet_hook); - if (IS_ERR(prev)) - goto out; -@@ -195,14 +199,14 @@ out: - /* called with rcu_read_lock */ - void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb) - { -- br_flood(br, skb, NULL, __br_deliver); -+ br_flood(br, skb, NULL, __br_deliver, false); - } - - /* called under bridge lock */ - void br_flood_forward(struct net_bridge *br, struct sk_buff *skb, - struct sk_buff *skb2) - { -- br_flood(br, skb, skb2, __br_forward); -+ br_flood(br, skb, skb2, __br_forward, true); - } - - #ifdef CONFIG_BRIDGE_IGMP_SNOOPING diff --git a/target/linux/generic/patches-2.6.38/643-bridge_remove_ipv6_dependency.patch b/target/linux/generic/patches-2.6.38/643-bridge_remove_ipv6_dependency.patch deleted file mode 100644 index 7f4f7543e0..0000000000 --- a/target/linux/generic/patches-2.6.38/643-bridge_remove_ipv6_dependency.patch +++ /dev/null @@ -1,101 +0,0 @@ ---- a/include/net/addrconf.h -+++ b/include/net/addrconf.h -@@ -93,6 +93,12 @@ extern void addrconf_join_solict(struc - extern void addrconf_leave_solict(struct inet6_dev *idev, - struct in6_addr *addr); - -+extern int (*ipv6_dev_get_saddr_hook)(struct net *net, -+ struct net_device *dev, -+ const struct in6_addr *daddr, -+ unsigned int srcprefs, -+ struct in6_addr *saddr); -+ - static inline unsigned long addrconf_timeout_fixup(u32 timeout, - unsigned unit) - { ---- a/net/bridge/Kconfig -+++ b/net/bridge/Kconfig -@@ -6,7 +6,6 @@ config BRIDGE - tristate "802.1d Ethernet Bridging" - select LLC - select STP -- depends on IPV6 || IPV6=n - ---help--- - If you say Y here, then your Linux box will be able to act as an - Ethernet bridge, which means that the different Ethernet segments it ---- a/net/ipv6/Makefile -+++ b/net/ipv6/Makefile -@@ -40,3 +40,4 @@ obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel. - obj-y += addrconf_core.o exthdrs_core.o - - obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o -+obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_stubs.o ---- a/net/ipv6/addrconf.c -+++ b/net/ipv6/addrconf.c -@@ -1119,7 +1119,7 @@ out: - return ret; - } - --int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev, -+static int __ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev, - const struct in6_addr *daddr, unsigned int prefs, - struct in6_addr *saddr) - { -@@ -1244,7 +1244,6 @@ try_nextdev: - in6_ifa_put(hiscore->ifa); - return 0; - } --EXPORT_SYMBOL(ipv6_dev_get_saddr); - - int ipv6_get_lladdr(struct net_device *dev, struct in6_addr *addr, - unsigned char banned_flags) -@@ -4718,6 +4717,9 @@ int __init addrconf_init(void) - - ipv6_addr_label_rtnl_register(); - -+ BUG_ON(ipv6_dev_get_saddr_hook != NULL); -+ rcu_assign_pointer(ipv6_dev_get_saddr_hook, __ipv6_dev_get_saddr); -+ - return 0; - errout: - rtnl_af_unregister(&inet6_ops); -@@ -4736,6 +4738,9 @@ void addrconf_cleanup(void) - struct net_device *dev; - int i; - -+ rcu_assign_pointer(ipv6_dev_get_saddr_hook, NULL); -+ synchronize_rcu(); -+ - unregister_netdevice_notifier(&ipv6_dev_notf); - unregister_pernet_subsys(&addrconf_ops); - ipv6_addr_label_cleanup(); ---- /dev/null -+++ b/net/ipv6/inet6_stubs.c -@@ -0,0 +1,27 @@ -+/* -+ * 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. -+ */ -+#include <net/ipv6.h> -+ -+int (*ipv6_dev_get_saddr_hook)(struct net *net, struct net_device *dev, -+ const struct in6_addr *daddr, unsigned int srcprefs, -+ struct in6_addr *saddr); -+ -+EXPORT_SYMBOL(ipv6_dev_get_saddr_hook); -+ -+int ipv6_dev_get_saddr(struct net *net, struct net_device *dst_dev, -+ const struct in6_addr *daddr, unsigned int prefs, -+ struct in6_addr *saddr) -+{ -+ typeof(ipv6_dev_get_saddr_hook) dev_get_saddr = rcu_dereference(ipv6_dev_get_saddr_hook); -+ -+ if (dev_get_saddr) -+ return dev_get_saddr(net, dst_dev, daddr, prefs, saddr); -+ -+ return -EADDRNOTAVAIL; -+} -+EXPORT_SYMBOL(ipv6_dev_get_saddr); -+ diff --git a/target/linux/generic/patches-2.6.38/650-pppoe_header_pad.patch b/target/linux/generic/patches-2.6.38/650-pppoe_header_pad.patch deleted file mode 100644 index 4875d5f23f..0000000000 --- a/target/linux/generic/patches-2.6.38/650-pppoe_header_pad.patch +++ /dev/null @@ -1,20 +0,0 @@ ---- 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-2.6.38/651-wireless_mesh_header.patch b/target/linux/generic/patches-2.6.38/651-wireless_mesh_header.patch deleted file mode 100644 index 271f8e3591..0000000000 --- a/target/linux/generic/patches-2.6.38/651-wireless_mesh_header.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- 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-2.6.38/700-swconfig.patch b/target/linux/generic/patches-2.6.38/700-swconfig.patch deleted file mode 100644 index 6825037ce9..0000000000 --- a/target/linux/generic/patches-2.6.38/700-swconfig.patch +++ /dev/null @@ -1,25 +0,0 @@ ---- 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-2.6.38/701-phy_extension.patch b/target/linux/generic/patches-2.6.38/701-phy_extension.patch deleted file mode 100644 index a0624d849e..0000000000 --- a/target/linux/generic/patches-2.6.38/701-phy_extension.patch +++ /dev/null @@ -1,81 +0,0 @@ ---- 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-2.6.38/702-phy_add_aneg_done_function.patch b/target/linux/generic/patches-2.6.38/702-phy_add_aneg_done_function.patch deleted file mode 100644 index f37baad729..0000000000 --- a/target/linux/generic/patches-2.6.38/702-phy_add_aneg_done_function.patch +++ /dev/null @@ -1,45 +0,0 @@ ---- 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-2.6.38/720-phy_adm6996.patch b/target/linux/generic/patches-2.6.38/720-phy_adm6996.patch deleted file mode 100644 index 9e8e56678b..0000000000 --- a/target/linux/generic/patches-2.6.38/720-phy_adm6996.patch +++ /dev/null @@ -1,26 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -98,6 +98,13 @@ config MICREL_PHY - ---help--- - Supports the KSZ9021, VSC8201, KS8001 PHYs. - -+config ADM6996_PHY -+ tristate "Driver for ADM6996 switches" -+ select SWCONFIG -+ ---help--- -+ Currently supports the ADM6996FC and ADM6996M switches. -+ Support for FC is very limited. -+ - 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 -@@ -14,6 +14,7 @@ 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-2.6.38/721-phy_packets.patch b/target/linux/generic/patches-2.6.38/721-phy_packets.patch deleted file mode 100644 index 640a19bb00..0000000000 --- a/target/linux/generic/patches-2.6.38/721-phy_packets.patch +++ /dev/null @@ -1,63 +0,0 @@ ---- 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-2.6.38/722-phy_mvswitch.patch b/target/linux/generic/patches-2.6.38/722-phy_mvswitch.patch deleted file mode 100644 index 2025b229a4..0000000000 --- a/target/linux/generic/patches-2.6.38/722-phy_mvswitch.patch +++ /dev/null @@ -1,22 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -105,6 +105,9 @@ config ADM6996_PHY - Currently supports the ADM6996FC and ADM6996M switches. - Support for FC is very limited. - -+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-2.6.38/723-phy_ip175c.patch b/target/linux/generic/patches-2.6.38/723-phy_ip175c.patch deleted file mode 100644 index 9e13e579dd..0000000000 --- a/target/linux/generic/patches-2.6.38/723-phy_ip175c.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -108,6 +108,10 @@ 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-2.6.38/724-phy_ar8216.patch b/target/linux/generic/patches-2.6.38/724-phy_ar8216.patch deleted file mode 100644 index a718e370f1..0000000000 --- a/target/linux/generic/patches-2.6.38/724-phy_ar8216.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -112,6 +112,10 @@ 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-2.6.38/725-phy_rtl8306.patch b/target/linux/generic/patches-2.6.38/725-phy_rtl8306.patch deleted file mode 100644 index a6d188f2ce..0000000000 --- a/target/linux/generic/patches-2.6.38/725-phy_rtl8306.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -116,6 +116,10 @@ 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-2.6.38/726-phy_rtl8366.patch b/target/linux/generic/patches-2.6.38/726-phy_rtl8366.patch deleted file mode 100644 index badc0a4e62..0000000000 --- a/target/linux/generic/patches-2.6.38/726-phy_rtl8366.patch +++ /dev/null @@ -1,44 +0,0 @@ ---- a/drivers/net/phy/Kconfig -+++ b/drivers/net/phy/Kconfig -@@ -158,4 +158,29 @@ 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-2.6.38/750-hostap_txpower.patch b/target/linux/generic/patches-2.6.38/750-hostap_txpower.patch deleted file mode 100644 index 374a284454..0000000000 --- a/target/linux/generic/patches-2.6.38/750-hostap_txpower.patch +++ /dev/null @@ -1,154 +0,0 @@ ---- 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-2.6.38/810-pci_disable_common_quirks.patch b/target/linux/generic/patches-2.6.38/810-pci_disable_common_quirks.patch deleted file mode 100644 index c947836166..0000000000 --- a/target/linux/generic/patches-2.6.38/810-pci_disable_common_quirks.patch +++ /dev/null @@ -1,43 +0,0 @@ ---- 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. -@@ -1989,7 +1990,9 @@ 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) - { -@@ -2662,6 +2665,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AT - quirk_msi_intx_disable_bug); - - #endif /* CONFIG_PCI_MSI */ -+#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-2.6.38/811-pci_disable_usb_common_quirks.patch b/target/linux/generic/patches-2.6.38/811-pci_disable_usb_common_quirks.patch deleted file mode 100644 index e1efe9cc39..0000000000 --- a/target/linux/generic/patches-2.6.38/811-pci_disable_usb_common_quirks.patch +++ /dev/null @@ -1,18 +0,0 @@ - ---- a/drivers/usb/host/pci-quirks.c -+++ b/drivers/usb/host/pci-quirks.c -@@ -134,6 +134,8 @@ reset_needed: - } - EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc); - -+#ifndef CONFIG_PCI_DISABLE_COMMON_QUIRKS -+ - static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask) - { - u16 cmd; -@@ -478,3 +480,5 @@ static void __devinit quirk_usb_early_ha - quirk_usb_handoff_xhci(pdev); - } - DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff); -+ -+#endif diff --git a/target/linux/generic/patches-2.6.38/820-usb_add_usb_find_device_by_name.patch b/target/linux/generic/patches-2.6.38/820-usb_add_usb_find_device_by_name.patch deleted file mode 100644 index d225150c90..0000000000 --- a/target/linux/generic/patches-2.6.38/820-usb_add_usb_find_device_by_name.patch +++ /dev/null @@ -1,84 +0,0 @@ ---- 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-2.6.38/822-usb_serial_option_add_more_devices.patch b/target/linux/generic/patches-2.6.38/822-usb_serial_option_add_more_devices.patch deleted file mode 100644 index 98ca87885a..0000000000 --- a/target/linux/generic/patches-2.6.38/822-usb_serial_option_add_more_devices.patch +++ /dev/null @@ -1,49 +0,0 @@ ---- a/drivers/usb/serial/option.c -+++ b/drivers/usb/serial/option.c -@@ -148,8 +148,13 @@ static void option_instat_callback(struc - #define HUAWEI_PRODUCT_K4505 0x1464 - #define HUAWEI_PRODUCT_K3765 0x1465 - #define HUAWEI_PRODUCT_E14AC 0x14AC -+#define HUAWEI_PRODUCT_K3770 0x14C9 -+#define HUAWEI_PRODUCT_K3771 0x14CA -+#define HUAWEI_PRODUCT_K4510 0x14CB -+#define HUAWEI_PRODUCT_K4511 0x14CC - #define HUAWEI_PRODUCT_ETS1220 0x1803 - #define HUAWEI_PRODUCT_E353 0x1506 -+#define HUAWEI_PRODUCT_E173S 0x1C05 - - #define QUANTA_VENDOR_ID 0x0408 - #define QUANTA_PRODUCT_Q101 0xEA02 -@@ -345,6 +350,7 @@ static void option_instat_callback(struc - /* ALCATEL PRODUCTS */ - #define ALCATEL_VENDOR_ID 0x1bbb - #define ALCATEL_PRODUCT_X060S 0x0000 -+#define ALCATEL_PRODUCT_X220D 0x0017 - - #define PIRELLI_VENDOR_ID 0x1266 - #define PIRELLI_PRODUCT_C100_1 0x1002 -@@ -533,7 +539,16 @@ static const struct usb_device_id option - { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_ETS1220, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC, 0xff, 0xff, 0xff) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3770, 0xff, 0x02, 0x31) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3770, 0xff, 0x02, 0x32) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3771, 0xff, 0x02, 0x31) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3771, 0xff, 0x02, 0x32) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4510, 0xff, 0x01, 0x31) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4510, 0xff, 0x01, 0x32) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4511, 0xff, 0x01, 0x31) }, -+ { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4511, 0xff, 0x01, 0x32) }, - { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E353, 0xff, 0x01, 0x01) }, -+ { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E173S) }, - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, - { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V740) }, -@@ -937,6 +952,7 @@ static const struct usb_device_id option - { USB_DEVICE(ALINK_VENDOR_ID, 0x9000) }, - { USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) }, - { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) }, -+ { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X220D) }, - { USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) }, - { USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) }, - { USB_DEVICE(LONGCHEER_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14), diff --git a/target/linux/generic/patches-2.6.38/830-ledtrig_morse.patch b/target/linux/generic/patches-2.6.38/830-ledtrig_morse.patch deleted file mode 100644 index 8d90184556..0000000000 --- a/target/linux/generic/patches-2.6.38/830-ledtrig_morse.patch +++ /dev/null @@ -1,18 +0,0 @@ ---- 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-$(CONFIG_LEDS_TRIGGER_MORSE) += ledtrig-morse.o diff --git a/target/linux/generic/patches-2.6.38/831-ledtrig_netdev.patch b/target/linux/generic/patches-2.6.38/831-ledtrig_netdev.patch deleted file mode 100644 index 6406adac2a..0000000000 --- a/target/linux/generic/patches-2.6.38/831-ledtrig_netdev.patch +++ /dev/null @@ -1,43 +0,0 @@ ---- a/drivers/leds/Kconfig -+++ b/drivers/leds/Kconfig -@@ -443,4 +443,11 @@ config LEDS_TRIGGER_MORSE - tristate "LED Morse Trigger" - depends on LEDS_TRIGGERS - -+config LEDS_TRIGGER_NETDEV -+ tristate "LED Netdev Trigger" -+ depends on NET && LEDS_TRIGGERS -+ help -+ This allows LEDs to be controlled by network device activity. -+ If unsure, say Y. -+ - endif # NEW_LEDS ---- a/drivers/leds/Makefile -+++ b/drivers/leds/Makefile -@@ -53,3 +53,4 @@ obj-$(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-2.6.38/832-ledtrig_usbdev.patch b/target/linux/generic/patches-2.6.38/832-ledtrig_usbdev.patch deleted file mode 100644 index 25c6745f68..0000000000 --- a/target/linux/generic/patches-2.6.38/832-ledtrig_usbdev.patch +++ /dev/null @@ -1,21 +0,0 @@ ---- 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-$(CONFIG_LEDS_TRIGGER_USBDEV) += ledtrig-usbdev.o diff --git a/target/linux/generic/patches-2.6.38/833-gpio_buttons.patch b/target/linux/generic/patches-2.6.38/833-gpio_buttons.patch deleted file mode 100644 index 23fa95319b..0000000000 --- a/target/linux/generic/patches-2.6.38/833-gpio_buttons.patch +++ /dev/null @@ -1,31 +0,0 @@ ---- a/drivers/input/misc/Kconfig -+++ b/drivers/input/misc/Kconfig -@@ -454,4 +454,20 @@ config INPUT_CMA3000_I2C - To compile this driver as a module, choose M here: the - module will be called cma3000_d0x_i2c. - -+config INPUT_GPIO_BUTTONS -+ tristate "Polled GPIO buttons interface" -+ depends on GENERIC_GPIO -+ select INPUT_POLLDEV -+ help -+ This driver implements support for buttons connected -+ to GPIO pins of various CPUs (and some other chips). -+ -+ Say Y here if your device has buttons connected -+ directly to such GPIO pins. Your board-specific -+ setup logic must also provide a platform device, -+ with configuration data saying which GPIOs are used. -+ -+ To compile this driver as a module, choose M here: the -+ module will be called gpio-buttons. -+ - endif ---- a/drivers/input/misc/Makefile -+++ b/drivers/input/misc/Makefile -@@ -43,4 +43,5 @@ obj-$(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-2.6.38/835-gpiodev.patch b/target/linux/generic/patches-2.6.38/835-gpiodev.patch deleted file mode 100644 index 900358e6b0..0000000000 --- a/target/linux/generic/patches-2.6.38/835-gpiodev.patch +++ /dev/null @@ -1,27 +0,0 @@ ---- 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 -@@ -70,6 +70,7 @@ 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-$(CONFIG_TELCLOCK) += tlclk.o - diff --git a/target/linux/generic/patches-2.6.38/840-rtc7301.patch b/target/linux/generic/patches-2.6.38/840-rtc7301.patch deleted file mode 100644 index 2cc7b03fb6..0000000000 --- a/target/linux/generic/patches-2.6.38/840-rtc7301.patch +++ /dev/null @@ -1,250 +0,0 @@ ---- a/drivers/rtc/Kconfig -+++ b/drivers/rtc/Kconfig -@@ -677,6 +677,15 @@ config RTC_DRV_NUC900 - If you say yes here you get support for the RTC subsystem of the - NUC910/NUC920 used in embedded systems. - -+config RTC_DRV_RTC7301 -+ tristate "Epson RTC-7301 SF/DG" -+ help -+ If you say Y here you will get support for the -+ Epson RTC-7301 SF/DG RTC chips. -+ -+ This driver can also be built as a module. If so, the module -+ will be called rtc-7301. -+ - comment "on-CPU RTC drivers" - - config RTC_DRV_DAVINCI ---- a/drivers/rtc/Makefile -+++ b/drivers/rtc/Makefile -@@ -83,6 +83,7 @@ obj-$(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-2.6.38/850-glamo_headers.patch b/target/linux/generic/patches-2.6.38/850-glamo_headers.patch deleted file mode 100644 index f3cf973651..0000000000 --- a/target/linux/generic/patches-2.6.38/850-glamo_headers.patch +++ /dev/null @@ -1,21 +0,0 @@ ---- 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 -@@ -142,6 +142,8 @@ 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-2.6.38/860-01_hotpluggable_spi_gpio.patch b/target/linux/generic/patches-2.6.38/860-01_hotpluggable_spi_gpio.patch deleted file mode 100644 index f8e6374fa7..0000000000 --- a/target/linux/generic/patches-2.6.38/860-01_hotpluggable_spi_gpio.patch +++ /dev/null @@ -1,60 +0,0 @@ -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-2.6.38/861-04_spi_gpio_implement_spi_delay.patch b/target/linux/generic/patches-2.6.38/861-04_spi_gpio_implement_spi_delay.patch deleted file mode 100644 index 4b145c2734..0000000000 --- a/target/linux/generic/patches-2.6.38/861-04_spi_gpio_implement_spi_delay.patch +++ /dev/null @@ -1,58 +0,0 @@ -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-2.6.38/862-gpio_spi_driver.patch b/target/linux/generic/patches-2.6.38/862-gpio_spi_driver.patch deleted file mode 100644 index 3d85069566..0000000000 --- a/target/linux/generic/patches-2.6.38/862-gpio_spi_driver.patch +++ /dev/null @@ -1,373 +0,0 @@ -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-2.6.38/863-gpiommc.patch b/target/linux/generic/patches-2.6.38/863-gpiommc.patch deleted file mode 100644 index a959b978cb..0000000000 --- a/target/linux/generic/patches-2.6.38/863-gpiommc.patch +++ /dev/null @@ -1,843 +0,0 @@ ---- /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 -@@ -2884,6 +2884,11 @@ 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-2.6.38/864-gpiommc_configfs_locking.patch b/target/linux/generic/patches-2.6.38/864-gpiommc_configfs_locking.patch deleted file mode 100644 index 2e4e820b2b..0000000000 --- a/target/linux/generic/patches-2.6.38/864-gpiommc_configfs_locking.patch +++ /dev/null @@ -1,58 +0,0 @@ -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-2.6.38/870-hifn795x_byteswap.patch b/target/linux/generic/patches-2.6.38/870-hifn795x_byteswap.patch deleted file mode 100644 index 3a37c951ec..0000000000 --- a/target/linux/generic/patches-2.6.38/870-hifn795x_byteswap.patch +++ /dev/null @@ -1,17 +0,0 @@ ---- 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-2.6.38/900-slab_maxsize.patch b/target/linux/generic/patches-2.6.38/900-slab_maxsize.patch deleted file mode 100644 index 55e2516a69..0000000000 --- a/target/linux/generic/patches-2.6.38/900-slab_maxsize.patch +++ /dev/null @@ -1,13 +0,0 @@ ---- 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-2.6.38/910-kobject_uevent.patch b/target/linux/generic/patches-2.6.38/910-kobject_uevent.patch deleted file mode 100644 index f15749fa17..0000000000 --- a/target/linux/generic/patches-2.6.38/910-kobject_uevent.patch +++ /dev/null @@ -1,32 +0,0 @@ ---- 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-2.6.38/911-kobject_add_broadcast_uevent.patch b/target/linux/generic/patches-2.6.38/911-kobject_add_broadcast_uevent.patch deleted file mode 100644 index 7b36ab6115..0000000000 --- a/target/linux/generic/patches-2.6.38/911-kobject_add_broadcast_uevent.patch +++ /dev/null @@ -1,85 +0,0 @@ ---- 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-2.6.38/920-unable_to_open_console.patch b/target/linux/generic/patches-2.6.38/920-unable_to_open_console.patch deleted file mode 100644 index 767f777d1d..0000000000 --- a/target/linux/generic/patches-2.6.38/920-unable_to_open_console.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/init/main.c -+++ b/init/main.c -@@ -899,7 +899,7 @@ 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-2.6.38/921-use_preinit_as_init.patch b/target/linux/generic/patches-2.6.38/921-use_preinit_as_init.patch deleted file mode 100644 index d46c13b334..0000000000 --- a/target/linux/generic/patches-2.6.38/921-use_preinit_as_init.patch +++ /dev/null @@ -1,14 +0,0 @@ ---- a/init/main.c -+++ b/init/main.c -@@ -852,10 +852,7 @@ 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."); diff --git a/target/linux/generic/patches-2.6.38/930-crashlog.patch b/target/linux/generic/patches-2.6.38/930-crashlog.patch deleted file mode 100644 index 8c8f05c260..0000000000 --- a/target/linux/generic/patches-2.6.38/930-crashlog.patch +++ /dev/null @@ -1,242 +0,0 @@ ---- /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-ocf_kbuild_integration.patch b/target/linux/generic/patches-2.6.38/940-ocf_kbuild_integration.patch deleted file mode 100644 index 3c322f3d14..0000000000 --- a/target/linux/generic/patches-2.6.38/940-ocf_kbuild_integration.patch +++ /dev/null @@ -1,20 +0,0 @@ ---- a/crypto/Kconfig -+++ b/crypto/Kconfig -@@ -866,3 +866,6 @@ 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-2.6.38/941-ocf_20110720.patch b/target/linux/generic/patches-2.6.38/941-ocf_20110720.patch deleted file mode 100644 index d52cc9882e..0000000000 --- a/target/linux/generic/patches-2.6.38/941-ocf_20110720.patch +++ /dev/null @@ -1,133 +0,0 @@ ---- a/kernel/pid.c -+++ b/kernel/pid.c -@@ -427,6 +427,7 @@ 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) - { ---- 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 +725,63 @@ 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); -+ -+ -+#define EXTRACT_SIZE 10 -+ - /********************************************************************* - * - * 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 -@@ -54,6 +54,10 @@ 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]); - diff --git a/target/linux/generic/patches-2.6.38/950-vm_exports.patch b/target/linux/generic/patches-2.6.38/950-vm_exports.patch deleted file mode 100644 index 7ccede586f..0000000000 --- a/target/linux/generic/patches-2.6.38/950-vm_exports.patch +++ /dev/null @@ -1,126 +0,0 @@ ---- a/mm/shmem.c -+++ b/mm/shmem.c -@@ -2730,6 +2730,16 @@ out: - - /* common code */ - -+void shmem_set_file(struct vm_area_struct *vma, struct file *file) -+{ -+ if (vma->vm_file) -+ fput(vma->vm_file); -+ vma->vm_file = file; -+ vma->vm_ops = &shmem_vm_ops; -+ vma->vm_flags |= VM_CAN_NONLINEAR; -+} -+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 -@@ -2807,10 +2817,7 @@ 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; -- vma->vm_flags |= VM_CAN_NONLINEAR; -+ shmem_set_file(vma, file); -+ - return 0; - } ---- a/fs/file.c -+++ b/fs/file.c -@@ -268,6 +268,7 @@ 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 -@@ -4641,6 +4641,7 @@ 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 -@@ -2699,6 +2700,7 @@ 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 -@@ -864,6 +864,7 @@ 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-2.6.38/960-decompress_unlzo_fix.patch b/target/linux/generic/patches-2.6.38/960-decompress_unlzo_fix.patch deleted file mode 100644 index ee7c118ef0..0000000000 --- a/target/linux/generic/patches-2.6.38/960-decompress_unlzo_fix.patch +++ /dev/null @@ -1,23 +0,0 @@ ---- /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-2.6.38/970-mips-gcc-4.6-set-but-unused-fixes.patch b/target/linux/generic/patches-2.6.38/970-mips-gcc-4.6-set-but-unused-fixes.patch deleted file mode 100644 index 1721a8fa76..0000000000 --- a/target/linux/generic/patches-2.6.38/970-mips-gcc-4.6-set-but-unused-fixes.patch +++ /dev/null @@ -1,24 +0,0 @@ ---- a/arch/mips/mm/tlbex.c -+++ b/arch/mips/mm/tlbex.c -@@ -1151,8 +1151,8 @@ static void __cpuinit build_r4000_tlb_re - struct uasm_reloc *r = relocs; - u32 *f; - unsigned int final_len; -- struct mips_huge_tlb_info htlb_info; -- enum vmalloc64_mode vmalloc_mode; -+ struct mips_huge_tlb_info htlb_info __maybe_unused; -+ enum vmalloc64_mode vmalloc_mode __maybe_unused; - - memset(tlb_handler, 0, sizeof(tlb_handler)); - memset(labels, 0, sizeof(labels)); ---- a/arch/mips/mm/c-r4k.c -+++ b/arch/mips/mm/c-r4k.c -@@ -1075,7 +1075,7 @@ static int __cpuinit probe_scache(void) - unsigned long flags, addr, begin, end, pow2; - unsigned int config = read_c0_config(); - struct cpuinfo_mips *c = ¤t_cpu_data; -- int tmp; -+ int tmp __maybe_unused; - - if (config & CONF_SC) - return 0; |