diff options
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.33/511-yaffs-cvs-2009-04-24.patch')
| -rw-r--r-- | target/linux/generic-2.6/patches-2.6.33/511-yaffs-cvs-2009-04-24.patch | 12344 |
1 files changed, 12344 insertions, 0 deletions
diff --git a/target/linux/generic-2.6/patches-2.6.33/511-yaffs-cvs-2009-04-24.patch b/target/linux/generic-2.6/patches-2.6.33/511-yaffs-cvs-2009-04-24.patch new file mode 100644 index 0000000000..5c70e79a05 --- /dev/null +++ b/target/linux/generic-2.6/patches-2.6.33/511-yaffs-cvs-2009-04-24.patch @@ -0,0 +1,12344 @@ +--- a/fs/yaffs2/devextras.h ++++ b/fs/yaffs2/devextras.h +@@ -14,194 +14,135 @@ + */ + + /* +- * This file is just holds extra declarations used during development. +- * Most of these are from kernel includes placed here so we can use them in +- * applications. ++ * This file is just holds extra declarations of macros that would normally ++ * be providesd in the Linux kernel. These macros have been written from ++ * scratch but are functionally equivalent to the Linux ones. + * + */ + + #ifndef __EXTRAS_H__ + #define __EXTRAS_H__ + +-#if defined WIN32 +-#define __inline__ __inline +-#define new newHack +-#endif +- +-#if !(defined __KERNEL__) || (defined WIN32) + +-/* User space defines */ ++#if !(defined __KERNEL__) + ++/* Definition of types */ + typedef unsigned char __u8; + typedef unsigned short __u16; + typedef unsigned __u32; + ++#endif ++ + /* +- * Simple doubly linked list implementation. +- * +- * Some of the internal functions ("__xxx") are useful when +- * manipulating whole lists rather than single entries, as +- * sometimes we already know the next/prev entries and we can +- * generate better code by using them directly rather than +- * using the generic single-entry routines. ++ * This is a simple doubly linked list implementation that matches the ++ * way the Linux kernel doubly linked list implementation works. + */ + +-#define prefetch(x) 1 +- +-struct list_head { +- struct list_head *next, *prev; ++struct ylist_head { ++ struct ylist_head *next; /* next in chain */ ++ struct ylist_head *prev; /* previous in chain */ + }; + +-#define LIST_HEAD_INIT(name) { &(name), &(name) } + +-#define LIST_HEAD(name) \ +- struct list_head name = LIST_HEAD_INIT(name) ++/* Initialise a static list */ ++#define YLIST_HEAD(name) \ ++struct ylist_head name = { &(name), &(name)} ++ + +-#define INIT_LIST_HEAD(ptr) do { \ +- (ptr)->next = (ptr); (ptr)->prev = (ptr); \ ++ ++/* Initialise a list head to an empty list */ ++#define YINIT_LIST_HEAD(p) \ ++do { \ ++ (p)->next = (p);\ ++ (p)->prev = (p); \ + } while (0) + +-/* +- * Insert a new entry between two known consecutive entries. +- * +- * This is only for internal list manipulation where we know +- * the prev/next entries already! +- */ +-static __inline__ void __list_add(struct list_head *new, +- struct list_head *prev, +- struct list_head *next) +-{ +- next->prev = new; +- new->next = next; +- new->prev = prev; +- prev->next = new; +-} + +-/** +- * list_add - add a new entry +- * @new: new entry to be added +- * @head: list head to add it after +- * +- * Insert a new entry after the specified head. +- * This is good for implementing stacks. +- */ +-static __inline__ void list_add(struct list_head *new, struct list_head *head) ++/* Add an element to a list */ ++static __inline__ void ylist_add(struct ylist_head *newEntry, ++ struct ylist_head *list) + { +- __list_add(new, head, head->next); +-} ++ struct ylist_head *listNext = list->next; ++ ++ list->next = newEntry; ++ newEntry->prev = list; ++ newEntry->next = listNext; ++ listNext->prev = newEntry; + +-/** +- * list_add_tail - add a new entry +- * @new: new entry to be added +- * @head: list head to add it before +- * +- * Insert a new entry before the specified head. +- * This is useful for implementing queues. +- */ +-static __inline__ void list_add_tail(struct list_head *new, +- struct list_head *head) +-{ +- __list_add(new, head->prev, head); + } + +-/* +- * Delete a list entry by making the prev/next entries +- * point to each other. +- * +- * This is only for internal list manipulation where we know +- * the prev/next entries already! +- */ +-static __inline__ void __list_del(struct list_head *prev, +- struct list_head *next) ++static __inline__ void ylist_add_tail(struct ylist_head *newEntry, ++ struct ylist_head *list) + { +- next->prev = prev; +- prev->next = next; ++ struct ylist_head *listPrev = list->prev; ++ ++ list->prev = newEntry; ++ newEntry->next = list; ++ newEntry->prev = listPrev; ++ listPrev->next = newEntry; ++ + } + +-/** +- * list_del - deletes entry from list. +- * @entry: the element to delete from the list. +- * Note: list_empty on entry does not return true after this, the entry is +- * in an undefined state. +- */ +-static __inline__ void list_del(struct list_head *entry) ++ ++/* Take an element out of its current list, with or without ++ * reinitialising the links.of the entry*/ ++static __inline__ void ylist_del(struct ylist_head *entry) + { +- __list_del(entry->prev, entry->next); ++ struct ylist_head *listNext = entry->next; ++ struct ylist_head *listPrev = entry->prev; ++ ++ listNext->prev = listPrev; ++ listPrev->next = listNext; ++ + } + +-/** +- * list_del_init - deletes entry from list and reinitialize it. +- * @entry: the element to delete from the list. +- */ +-static __inline__ void list_del_init(struct list_head *entry) ++static __inline__ void ylist_del_init(struct ylist_head *entry) + { +- __list_del(entry->prev, entry->next); +- INIT_LIST_HEAD(entry); ++ ylist_del(entry); ++ entry->next = entry->prev = entry; + } + +-/** +- * list_empty - tests whether a list is empty +- * @head: the list to test. +- */ +-static __inline__ int list_empty(struct list_head *head) ++ ++/* Test if the list is empty */ ++static __inline__ int ylist_empty(struct ylist_head *entry) + { +- return head->next == head; ++ return (entry->next == entry); + } + +-/** +- * list_splice - join two lists +- * @list: the new list to add. +- * @head: the place to add it in the first list. ++ ++/* ylist_entry takes a pointer to a list entry and offsets it to that ++ * we can find a pointer to the object it is embedded in. + */ +-static __inline__ void list_splice(struct list_head *list, +- struct list_head *head) +-{ +- struct list_head *first = list->next; + +- if (first != list) { +- struct list_head *last = list->prev; +- struct list_head *at = head->next; +- +- first->prev = head; +- head->next = first; +- +- last->next = at; +- at->prev = last; +- } +-} + +-/** +- * list_entry - get the struct for this entry +- * @ptr: the &struct list_head pointer. +- * @type: the type of the struct this is embedded in. +- * @member: the name of the list_struct within the struct. +- */ +-#define list_entry(ptr, type, member) \ +- ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member))) +- +-/** +- * list_for_each - iterate over a list +- * @pos: the &struct list_head to use as a loop counter. +- * @head: the head for your list. +- */ +-#define list_for_each(pos, head) \ +- for (pos = (head)->next, prefetch(pos->next); pos != (head); \ +- pos = pos->next, prefetch(pos->next)) +- +-/** +- * list_for_each_safe - iterate over a list safe against removal +- * of list entry +- * @pos: the &struct list_head to use as a loop counter. +- * @n: another &struct list_head to use as temporary storage +- * @head: the head for your list. +- */ +-#define list_for_each_safe(pos, n, head) \ +- for (pos = (head)->next, n = pos->next; pos != (head); \ +- pos = n, n = pos->next) ++#define ylist_entry(entry, type, member) \ ++ ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) + +-/* +- * File types ++ ++/* ylist_for_each and list_for_each_safe iterate over lists. ++ * ylist_for_each_safe uses temporary storage to make the list delete safe + */ ++ ++#define ylist_for_each(itervar, list) \ ++ for (itervar = (list)->next; itervar != (list); itervar = itervar->next) ++ ++#define ylist_for_each_safe(itervar, saveVar, list) \ ++ for (itervar = (list)->next, saveVar = (list)->next->next; \ ++ itervar != (list); itervar = saveVar, saveVar = saveVar->next) ++ ++ ++#if !(defined __KERNEL__) ++ ++ ++#ifndef WIN32 ++#include <sys/stat.h> ++#endif ++ ++ ++#ifdef CONFIG_YAFFS_PROVIDE_DEFS ++/* File types */ ++ ++ + #define DT_UNKNOWN 0 + #define DT_FIFO 1 + #define DT_CHR 2 +@@ -212,6 +153,7 @@ static __inline__ void list_splice(struc + #define DT_SOCK 12 + #define DT_WHT 14 + ++ + #ifndef WIN32 + #include <sys/stat.h> + #endif +@@ -227,10 +169,6 @@ static __inline__ void list_splice(struc + #define ATTR_ATIME 16 + #define ATTR_MTIME 32 + #define ATTR_CTIME 64 +-#define ATTR_ATIME_SET 128 +-#define ATTR_MTIME_SET 256 +-#define ATTR_FORCE 512 /* Not a change, but a change it */ +-#define ATTR_ATTR_FLAG 1024 + + struct iattr { + unsigned int ia_valid; +@@ -244,21 +182,15 @@ struct iattr { + unsigned int ia_attr_flags; + }; + +-#define KERN_DEBUG ++#endif + + #else + +-#ifndef WIN32 + #include <linux/types.h> +-#include <linux/list.h> + #include <linux/fs.h> + #include <linux/stat.h> +-#endif + + #endif + +-#if defined WIN32 +-#undef new +-#endif + + #endif +--- a/fs/yaffs2/Kconfig ++++ b/fs/yaffs2/Kconfig +@@ -5,7 +5,7 @@ + config YAFFS_FS + tristate "YAFFS2 file system support" + default n +- depends on MTD ++ depends on MTD_BLOCK + select YAFFS_YAFFS1 + select YAFFS_YAFFS2 + help +@@ -43,7 +43,8 @@ config YAFFS_9BYTE_TAGS + format that you need to continue to support. New data written + also uses the older-style format. Note: Use of this option + generally requires that MTD's oob layout be adjusted to use the +- older-style format. See notes on tags formats and MTD versions. ++ older-style format. See notes on tags formats and MTD versions ++ in yaffs_mtdif1.c. + + If unsure, say N. + +@@ -109,26 +110,6 @@ config YAFFS_DISABLE_LAZY_LOAD + + If unsure, say N. + +-config YAFFS_CHECKPOINT_RESERVED_BLOCKS +- int "Reserved blocks for checkpointing" +- depends on YAFFS_YAFFS2 +- default 10 +- help +- Give the number of Blocks to reserve for checkpointing. +- Checkpointing saves the state at unmount so that mounting is +- much faster as a scan of all the flash to regenerate this state +- is not needed. These Blocks are reserved per partition, so if +- you have very small partitions the default (10) may be a mess +- for you. You can set this value to 0, but that does not mean +- checkpointing is disabled at all. There only won't be any +- specially reserved blocks for checkpointing, so if there is +- enough free space on the filesystem, it will be used for +- checkpointing. +- +- If unsure, leave at default (10), but don't wonder if there are +- always 2MB used on your large page device partition (10 x 2k +- pagesize). When using small partitions or when being very small +- on space, you probably want to set this to zero. + + config YAFFS_DISABLE_WIDE_TNODES + bool "Turn off wide tnodes" +--- a/fs/yaffs2/Makefile ++++ b/fs/yaffs2/Makefile +@@ -5,7 +5,6 @@ + obj-$(CONFIG_YAFFS_FS) += yaffs.o + + yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o +-yaffs-y += yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o ++yaffs-y += yaffs_packedtags1.o yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o + yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o +-yaffs-y += yaffs_mtdif1.o yaffs_packedtags1.o +-yaffs-y += yaffs_mtdif.o yaffs_mtdif2.o ++yaffs-y += yaffs_mtdif.o yaffs_mtdif1.o yaffs_mtdif2.o +--- a/fs/yaffs2/moduleconfig.h ++++ b/fs/yaffs2/moduleconfig.h +@@ -27,12 +27,12 @@ + + /* Default: Not selected */ + /* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ +-//#define CONFIG_YAFFS_DOES_ECC ++/* #define CONFIG_YAFFS_DOES_ECC */ + + /* Default: Not selected */ + /* Meaning: ECC byte order is 'wrong'. Only meaningful if */ + /* CONFIG_YAFFS_DOES_ECC is set */ +-//#define CONFIG_YAFFS_ECC_WRONG_ORDER ++/* #define CONFIG_YAFFS_ECC_WRONG_ORDER */ + + /* Default: Selected */ + /* Meaning: Disables testing whether chunks are erased before writing to them*/ +@@ -54,11 +54,11 @@ that you need to continue to support. N + older-style format. + Note: Use of this option generally requires that MTD's oob layout be + adjusted to use the older-style format. See notes on tags formats and +-MTD versions. ++MTD versions in yaffs_mtdif1.c. + */ + /* Default: Not selected */ + /* Meaning: Use older-style on-NAND data format with pageStatus byte */ +-#define CONFIG_YAFFS_9BYTE_TAGS ++/* #define CONFIG_YAFFS_9BYTE_TAGS */ + + #endif /* YAFFS_OUT_OF_TREE */ + +--- a/fs/yaffs2/yaffs_checkptrw.c ++++ b/fs/yaffs2/yaffs_checkptrw.c +@@ -12,48 +12,43 @@ + */ + + const char *yaffs_checkptrw_c_version = +- "$Id: yaffs_checkptrw.c,v 1.14 2007-05-15 20:07:40 charles Exp $"; ++ "$Id: yaffs_checkptrw.c,v 1.18 2009-03-06 17:20:49 wookey Exp $"; + + + #include "yaffs_checkptrw.h" +- ++#include "yaffs_getblockinfo.h" + + static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) + { +- + int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; + + T(YAFFS_TRACE_CHECKPOINT, + (TSTR("checkpt blocks available = %d" TENDSTR), + blocksAvailable)); + +- + return (blocksAvailable <= 0) ? 0 : 1; + } + + + static int yaffs_CheckpointErase(yaffs_Device *dev) + { +- + int i; + +- +- if(!dev->eraseBlockInNAND) ++ if (!dev->eraseBlockInNAND) + return 0; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR), +- dev->internalStartBlock,dev->internalEndBlock)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checking blocks %d to %d"TENDSTR), ++ dev->internalStartBlock, dev->internalEndBlock)); + +- for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); +- if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i)); +- if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){ ++ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); ++ if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("erasing checkpt block %d"TENDSTR), i)); ++ if (dev->eraseBlockInNAND(dev, i - dev->blockOffset /* realign */)) { + bi->blockState = YAFFS_BLOCK_STATE_EMPTY; + dev->nErasedBlocks++; + dev->nFreeChunks += dev->nChunksPerBlock; +- } +- else { +- dev->markNANDBlockBad(dev,i); ++ } else { ++ dev->markNANDBlockBad(dev, i); + bi->blockState = YAFFS_BLOCK_STATE_DEAD; + } + } +@@ -71,23 +66,23 @@ static void yaffs_CheckpointFindNextEras + int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; + T(YAFFS_TRACE_CHECKPOINT, + (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), +- dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock)); ++ dev->nErasedBlocks, dev->nReservedBlocks, blocksAvailable, dev->checkpointNextBlock)); + +- if(dev->checkpointNextBlock >= 0 && +- dev->checkpointNextBlock <= dev->internalEndBlock && +- blocksAvailable > 0){ +- +- for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); +- if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){ ++ if (dev->checkpointNextBlock >= 0 && ++ dev->checkpointNextBlock <= dev->internalEndBlock && ++ blocksAvailable > 0) { ++ ++ for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); ++ if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { + dev->checkpointNextBlock = i + 1; + dev->checkpointCurrentBlock = i; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block %d"TENDSTR), i)); + return; + } + } + } +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR))); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("out of checkpt blocks"TENDSTR))); + + dev->checkpointNextBlock = -1; + dev->checkpointCurrentBlock = -1; +@@ -98,30 +93,31 @@ static void yaffs_CheckpointFindNextChec + int i; + yaffs_ExtendedTags tags; + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), + dev->blocksInCheckpoint, dev->checkpointNextBlock)); + +- if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks) +- for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ ++ if (dev->blocksInCheckpoint < dev->checkpointMaxBlocks) ++ for (i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++) { + int chunk = i * dev->nChunksPerBlock; + int realignedChunk = chunk - dev->chunkOffset; + +- dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags); +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), +- i, tags.objectId,tags.sequenceNumber,tags.eccResult)); ++ dev->readChunkWithTagsFromNAND(dev, realignedChunk, ++ NULL, &tags); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), ++ i, tags.objectId, tags.sequenceNumber, tags.eccResult)); + +- if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){ ++ if (tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) { + /* Right kind of block */ + dev->checkpointNextBlock = tags.objectId; + dev->checkpointCurrentBlock = i; + dev->checkpointBlockList[dev->blocksInCheckpoint] = i; + dev->blocksInCheckpoint++; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("found checkpt block %d"TENDSTR), i)); + return; + } + } + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR))); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("found no more checkpt blocks"TENDSTR))); + + dev->checkpointNextBlock = -1; + dev->checkpointCurrentBlock = -1; +@@ -133,17 +129,17 @@ int yaffs_CheckpointOpen(yaffs_Device *d + + /* Got the functions we need? */ + if (!dev->writeChunkWithTagsToNAND || +- !dev->readChunkWithTagsFromNAND || +- !dev->eraseBlockInNAND || +- !dev->markNANDBlockBad) ++ !dev->readChunkWithTagsFromNAND || ++ !dev->eraseBlockInNAND || ++ !dev->markNANDBlockBad) + return 0; + +- if(forWriting && !yaffs_CheckpointSpaceOk(dev)) ++ if (forWriting && !yaffs_CheckpointSpaceOk(dev)) + return 0; + +- if(!dev->checkpointBuffer) +- dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk); +- if(!dev->checkpointBuffer) ++ if (!dev->checkpointBuffer) ++ dev->checkpointBuffer = YMALLOC_DMA(dev->totalBytesPerChunk); ++ if (!dev->checkpointBuffer) + return 0; + + +@@ -159,12 +155,10 @@ int yaffs_CheckpointOpen(yaffs_Device *d + dev->checkpointNextBlock = dev->internalStartBlock; + + /* Erase all the blocks in the checkpoint area */ +- if(forWriting){ +- memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); ++ if (forWriting) { ++ memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); + dev->checkpointByteOffset = 0; + return yaffs_CheckpointErase(dev); +- +- + } else { + int i; + /* Set to a value that will kick off a read */ +@@ -174,7 +168,7 @@ int yaffs_CheckpointOpen(yaffs_Device *d + dev->blocksInCheckpoint = 0; + dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; + dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); +- for(i = 0; i < dev->checkpointMaxBlocks; i++) ++ for (i = 0; i < dev->checkpointMaxBlocks; i++) + dev->checkpointBlockList[i] = -1; + } + +@@ -191,18 +185,17 @@ int yaffs_GetCheckpointSum(yaffs_Device + + static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) + { +- + int chunk; + int realignedChunk; + + yaffs_ExtendedTags tags; + +- if(dev->checkpointCurrentBlock < 0){ ++ if (dev->checkpointCurrentBlock < 0) { + yaffs_CheckpointFindNextErasedBlock(dev); + dev->checkpointCurrentChunk = 0; + } + +- if(dev->checkpointCurrentBlock < 0) ++ if (dev->checkpointCurrentBlock < 0) + return 0; + + tags.chunkDeleted = 0; +@@ -210,10 +203,10 @@ static int yaffs_CheckpointFlushBuffer(y + tags.chunkId = dev->checkpointPageSequence + 1; + tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA; + tags.byteCount = dev->nDataBytesPerChunk; +- if(dev->checkpointCurrentChunk == 0){ ++ if (dev->checkpointCurrentChunk == 0) { + /* First chunk we write for the block? Set block state to + checkpoint */ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointCurrentBlock); ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock); + bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; + dev->blocksInCheckpoint++; + } +@@ -221,28 +214,29 @@ static int yaffs_CheckpointFlushBuffer(y + chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; + + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), +- chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), ++ chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId)); + + realignedChunk = chunk - dev->chunkOffset; + +- dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags); ++ dev->writeChunkWithTagsToNAND(dev, realignedChunk, ++ dev->checkpointBuffer, &tags); + dev->checkpointByteOffset = 0; + dev->checkpointPageSequence++; + dev->checkpointCurrentChunk++; +- if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){ ++ if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) { + dev->checkpointCurrentChunk = 0; + dev->checkpointCurrentBlock = -1; + } +- memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); ++ memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk); + + return 1; + } + + +-int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes) ++int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes) + { +- int i=0; ++ int i = 0; + int ok = 1; + + +@@ -250,17 +244,14 @@ int yaffs_CheckpointWrite(yaffs_Device * + + + +- if(!dev->checkpointBuffer) ++ if (!dev->checkpointBuffer) + return 0; + +- if(!dev->checkpointOpenForWrite) ++ if (!dev->checkpointOpenForWrite) + return -1; + +- while(i < nBytes && ok) { +- +- +- +- dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ; ++ while (i < nBytes && ok) { ++ dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes; + dev->checkpointSum += *dataBytes; + dev->checkpointXor ^= *dataBytes; + +@@ -270,18 +261,17 @@ int yaffs_CheckpointWrite(yaffs_Device * + dev->checkpointByteCount++; + + +- if(dev->checkpointByteOffset < 0 || ++ if (dev->checkpointByteOffset < 0 || + dev->checkpointByteOffset >= dev->nDataBytesPerChunk) + ok = yaffs_CheckpointFlushBuffer(dev); +- + } + +- return i; ++ return i; + } + + int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) + { +- int i=0; ++ int i = 0; + int ok = 1; + yaffs_ExtendedTags tags; + +@@ -291,52 +281,54 @@ int yaffs_CheckpointRead(yaffs_Device *d + + __u8 *dataBytes = (__u8 *)data; + +- if(!dev->checkpointBuffer) ++ if (!dev->checkpointBuffer) + return 0; + +- if(dev->checkpointOpenForWrite) ++ if (dev->checkpointOpenForWrite) + return -1; + +- while(i < nBytes && ok) { ++ while (i < nBytes && ok) { + + +- if(dev->checkpointByteOffset < 0 || +- dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { ++ if (dev->checkpointByteOffset < 0 || ++ dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { + +- if(dev->checkpointCurrentBlock < 0){ ++ if (dev->checkpointCurrentBlock < 0) { + yaffs_CheckpointFindNextCheckpointBlock(dev); + dev->checkpointCurrentChunk = 0; + } + +- if(dev->checkpointCurrentBlock < 0) ++ if (dev->checkpointCurrentBlock < 0) + ok = 0; + else { +- +- chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + +- dev->checkpointCurrentChunk; ++ chunk = dev->checkpointCurrentBlock * ++ dev->nChunksPerBlock + ++ dev->checkpointCurrentChunk; + + realignedChunk = chunk - dev->chunkOffset; + +- /* read in the next chunk */ +- /* printf("read checkpoint page %d\n",dev->checkpointPage); */ +- dev->readChunkWithTagsFromNAND(dev, realignedChunk, +- dev->checkpointBuffer, +- &tags); +- +- if(tags.chunkId != (dev->checkpointPageSequence + 1) || +- tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) +- ok = 0; ++ /* read in the next chunk */ ++ /* printf("read checkpoint page %d\n",dev->checkpointPage); */ ++ dev->readChunkWithTagsFromNAND(dev, ++ realignedChunk, ++ dev->checkpointBuffer, ++ &tags); ++ ++ if (tags.chunkId != (dev->checkpointPageSequence + 1) || ++ tags.eccResult > YAFFS_ECC_RESULT_FIXED || ++ tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ ok = 0; + + dev->checkpointByteOffset = 0; + dev->checkpointPageSequence++; + dev->checkpointCurrentChunk++; + +- if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock) ++ if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) + dev->checkpointCurrentBlock = -1; + } + } + +- if(ok){ ++ if (ok) { + *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; + dev->checkpointSum += *dataBytes; + dev->checkpointXor ^= *dataBytes; +@@ -353,17 +345,17 @@ int yaffs_CheckpointRead(yaffs_Device *d + int yaffs_CheckpointClose(yaffs_Device *dev) + { + +- if(dev->checkpointOpenForWrite){ +- if(dev->checkpointByteOffset != 0) ++ if (dev->checkpointOpenForWrite) { ++ if (dev->checkpointByteOffset != 0) + yaffs_CheckpointFlushBuffer(dev); + } else { + int i; +- for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]); +- if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY) ++ for (i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointBlockList[i]); ++ if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) + bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; + else { +- // Todo this looks odd... ++ /* Todo this looks odd... */ + } + } + YFREE(dev->checkpointBlockList); +@@ -374,27 +366,25 @@ int yaffs_CheckpointClose(yaffs_Device * + dev->nErasedBlocks -= dev->blocksInCheckpoint; + + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR), ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint byte count %d" TENDSTR), + dev->checkpointByteCount)); + +- if(dev->checkpointBuffer){ ++ if (dev->checkpointBuffer) { + /* free the buffer */ + YFREE(dev->checkpointBuffer); + dev->checkpointBuffer = NULL; + return 1; +- } +- else ++ } else + return 0; +- + } + + int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) + { + /* Erase the first checksum block */ + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR))); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint invalidate"TENDSTR))); + +- if(!yaffs_CheckpointSpaceOk(dev)) ++ if (!yaffs_CheckpointSpaceOk(dev)) + return 0; + + return yaffs_CheckpointErase(dev); +--- a/fs/yaffs2/yaffs_checkptrw.h ++++ b/fs/yaffs2/yaffs_checkptrw.h +@@ -20,9 +20,9 @@ + + int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting); + +-int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes); ++int yaffs_CheckpointWrite(yaffs_Device *dev, const void *data, int nBytes); + +-int yaffs_CheckpointRead(yaffs_Device *dev,void *data, int nBytes); ++int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes); + + int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum); + +--- a/fs/yaffs2/yaffs_ecc.c ++++ b/fs/yaffs2/yaffs_ecc.c +@@ -29,7 +29,7 @@ + */ + + const char *yaffs_ecc_c_version = +- "$Id: yaffs_ecc.c,v 1.9 2007-02-14 01:09:06 wookey Exp $"; ++ "$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $"; + + #include "yportenv.h" + +@@ -109,12 +109,10 @@ void yaffs_ECCCalculate(const unsigned c + b = column_parity_table[*data++]; + col_parity ^= b; + +- if (b & 0x01) // odd number of bits in the byte +- { ++ if (b & 0x01) { /* odd number of bits in the byte */ + line_parity ^= i; + line_parity_prime ^= ~i; + } +- + } + + ecc[2] = (~col_parity) | 0x03; +@@ -158,7 +156,7 @@ void yaffs_ECCCalculate(const unsigned c + ecc[0] = ~t; + + #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER +- // Swap the bytes into the wrong order ++ /* Swap the bytes into the wrong order */ + t = ecc[0]; + ecc[0] = ecc[1]; + ecc[1] = t; +@@ -189,7 +187,7 @@ int yaffs_ECCCorrect(unsigned char *data + unsigned bit; + + #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER +- // swap the bytes to correct for the wrong order ++ /* swap the bytes to correct for the wrong order */ + unsigned char t; + + t = d0; +@@ -251,7 +249,7 @@ int yaffs_ECCCorrect(unsigned char *data + * ECCxxxOther does ECC calcs on arbitrary n bytes of data + */ + void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * eccOther) ++ yaffs_ECCOther *eccOther) + { + unsigned int i; + +@@ -278,8 +276,8 @@ void yaffs_ECCCalculateOther(const unsig + } + + int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * read_ecc, +- const yaffs_ECCOther * test_ecc) ++ yaffs_ECCOther *read_ecc, ++ const yaffs_ECCOther *test_ecc) + { + unsigned char cDelta; /* column parity delta */ + unsigned lDelta; /* line parity delta */ +@@ -294,8 +292,7 @@ int yaffs_ECCCorrectOther(unsigned char + return 0; /* no error */ + + if (lDelta == ~lDeltaPrime && +- (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) +- { ++ (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) { + /* Single bit (recoverable) error in data */ + + bit = 0; +@@ -307,7 +304,7 @@ int yaffs_ECCCorrectOther(unsigned char + if (cDelta & 0x02) + bit |= 0x01; + +- if(lDelta >= nBytes) ++ if (lDelta >= nBytes) + return -1; + + data[lDelta] ^= (1 << bit); +@@ -316,7 +313,7 @@ int yaffs_ECCCorrectOther(unsigned char + } + + if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) + +- yaffs_CountBits(cDelta)) == 1) { ++ yaffs_CountBits(cDelta)) == 1) { + /* Reccoverable error in ecc */ + + *read_ecc = *test_ecc; +@@ -326,6 +323,4 @@ int yaffs_ECCCorrectOther(unsigned char + /* Unrecoverable error */ + + return -1; +- + } +- +--- a/fs/yaffs2/yaffs_ecc.h ++++ b/fs/yaffs2/yaffs_ecc.h +@@ -13,15 +13,15 @@ + * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. + */ + +- /* +- * This code implements the ECC algorithm used in SmartMedia. +- * +- * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. +- * The two unused bit are set to 1. +- * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC +- * blocks are used on a 512-byte NAND page. +- * +- */ ++/* ++ * This code implements the ECC algorithm used in SmartMedia. ++ * ++ * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. ++ * The two unused bit are set to 1. ++ * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC ++ * blocks are used on a 512-byte NAND page. ++ * ++ */ + + #ifndef __YAFFS_ECC_H__ + #define __YAFFS_ECC_H__ +@@ -34,11 +34,11 @@ typedef struct { + + void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); + int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, +- const unsigned char *test_ecc); ++ const unsigned char *test_ecc); + + void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * ecc); ++ yaffs_ECCOther *ecc); + int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, +- yaffs_ECCOther * read_ecc, +- const yaffs_ECCOther * test_ecc); ++ yaffs_ECCOther *read_ecc, ++ const yaffs_ECCOther *test_ecc); + #endif +--- a/fs/yaffs2/yaffs_fs.c ++++ b/fs/yaffs2/yaffs_fs.c +@@ -1,7 +1,7 @@ + /* + * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. + * +- * Copyright (C) 2002-2007 Aleph One Ltd. ++ * Copyright (C) 2002-2009 Aleph One Ltd. + * for Toby Churchill Ltd and Brightstar Engineering + * + * Created by Charles Manning <charles@aleph1.co.uk> +@@ -32,18 +32,17 @@ + */ + + const char *yaffs_fs_c_version = +- "$Id: yaffs_fs.c,v 1.63 2007-09-19 20:35:40 imcd Exp $"; ++ "$Id: yaffs_fs.c,v 1.79 2009-03-17 01:12:00 wookey Exp $"; + extern const char *yaffs_guts_c_version; + + #include <linux/version.h> +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) + #include <linux/config.h> + #endif + #include <linux/kernel.h> + #include <linux/module.h> + #include <linux/slab.h> + #include <linux/init.h> +-#include <linux/list.h> + #include <linux/fs.h> + #include <linux/proc_fs.h> + #include <linux/smp_lock.h> +@@ -53,10 +52,12 @@ extern const char *yaffs_guts_c_version; + #include <linux/string.h> + #include <linux/ctype.h> + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#include "asm/div64.h" ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + + #include <linux/statfs.h> /* Added NCB 15-8-2003 */ +-#include <asm/statfs.h> ++#include <linux/statfs.h> + #define UnlockPage(p) unlock_page(p) + #define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) + +@@ -69,22 +70,45 @@ extern const char *yaffs_guts_c_version; + #define BDEVNAME_SIZE 0 + #define yaffs_devname(sb, buf) kdevname(sb->s_dev) + +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0)) + /* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ + #define __user + #endif + + #endif + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26)) ++#define YPROC_ROOT (&proc_root) ++#else ++#define YPROC_ROOT NULL ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + #define WRITE_SIZE_STR "writesize" +-#define WRITE_SIZE(mtd) (mtd)->writesize ++#define WRITE_SIZE(mtd) ((mtd)->writesize) + #else + #define WRITE_SIZE_STR "oobblock" +-#define WRITE_SIZE(mtd) (mtd)->oobblock ++#define WRITE_SIZE(mtd) ((mtd)->oobblock) + #endif + +-#include <asm/uaccess.h> ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 27)) ++#define YAFFS_USE_WRITE_BEGIN_END 1 ++#else ++#define YAFFS_USE_WRITE_BEGIN_END 0 ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28)) ++static uint32_t YCALCBLOCKS(uint64_t partition_size, uint32_t block_size) ++{ ++ uint64_t result = partition_size; ++ do_div(result, block_size); ++ return (uint32_t)result; ++} ++#else ++#define YCALCBLOCKS(s, b) ((s)/(b)) ++#endif ++ ++#include <linux/uaccess.h> + + #include "yportenv.h" + #include "yaffs_guts.h" +@@ -96,28 +120,44 @@ extern const char *yaffs_guts_c_version; + + unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS; + unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; ++unsigned int yaffs_auto_checkpoint = 1; + + /* Module Parameters */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) +-module_param(yaffs_traceMask,uint,0644); +-module_param(yaffs_wr_attempts,uint,0644); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++module_param(yaffs_traceMask, uint, 0644); ++module_param(yaffs_wr_attempts, uint, 0644); ++module_param(yaffs_auto_checkpoint, uint, 0644); ++#else ++MODULE_PARM(yaffs_traceMask, "i"); ++MODULE_PARM(yaffs_wr_attempts, "i"); ++MODULE_PARM(yaffs_auto_checkpoint, "i"); ++#endif ++ ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) ++/* use iget and read_inode */ ++#define Y_IGET(sb, inum) iget((sb), (inum)) ++static void yaffs_read_inode(struct inode *inode); ++ + #else +-MODULE_PARM(yaffs_traceMask,"i"); +-MODULE_PARM(yaffs_wr_attempts,"i"); ++/* Call local equivalent */ ++#define YAFFS_USE_OWN_IGET ++#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) ++ ++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); + #endif + + /*#define T(x) printk x */ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) +-#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) ++#define yaffs_InodeToObjectLV(iptr) ((iptr)->i_private) + #else +-#define yaffs_InodeToObjectLV(iptr) (iptr)->u.generic_ip ++#define yaffs_InodeToObjectLV(iptr) ((iptr)->u.generic_ip) + #endif + + #define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr))) + #define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode) + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info) + #else + #define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp) +@@ -126,47 +166,49 @@ MODULE_PARM(yaffs_wr_attempts,"i"); + static void yaffs_put_super(struct super_block *sb); + + static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, +- loff_t * pos); ++ loff_t *pos); ++static ssize_t yaffs_hold_space(struct file *f); ++static void yaffs_release_space(struct file *f); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_file_flush(struct file *file, fl_owner_t id); + #else + static int yaffs_file_flush(struct file *file); + #endif + + static int yaffs_sync_object(struct file *file, struct dentry *dentry, +- int datasync); ++ int datasync); + + static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, + struct nameidata *n); + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, +- struct nameidata *n); ++ struct nameidata *n); + #else + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); + #endif + static int yaffs_link(struct dentry *old_dentry, struct inode *dir, +- struct dentry *dentry); ++ struct dentry *dentry); + static int yaffs_unlink(struct inode *dir, struct dentry *dentry); + static int yaffs_symlink(struct inode *dir, struct dentry *dentry, +- const char *symname); ++ const char *symname); + static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- dev_t dev); ++ dev_t dev); + #else + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- int dev); ++ int dev); + #endif + static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, + struct inode *new_dir, struct dentry *new_dentry); + static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_sync_fs(struct super_block *sb, int wait); + static void yaffs_write_super(struct super_block *sb); + #else +@@ -174,33 +216,47 @@ static int yaffs_sync_fs(struct super_bl + static int yaffs_write_super(struct super_block *sb); + #endif + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); + #else + static int yaffs_statfs(struct super_block *sb, struct statfs *buf); + #endif +-static void yaffs_read_inode(struct inode *inode); + ++#ifdef YAFFS_HAS_PUT_INODE + static void yaffs_put_inode(struct inode *inode); ++#endif ++ + static void yaffs_delete_inode(struct inode *); + static void yaffs_clear_inode(struct inode *); + + static int yaffs_readpage(struct file *file, struct page *page); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_writepage(struct page *page, struct writeback_control *wbc); + #else + static int yaffs_writepage(struct page *page); + #endif ++ ++ ++#if (YAFFS_USE_WRITE_BEGIN_END != 0) ++static int yaffs_write_begin(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata); ++static int yaffs_write_end(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *pg, void *fsdadata); ++#else + static int yaffs_prepare_write(struct file *f, struct page *pg, +- unsigned offset, unsigned to); ++ unsigned offset, unsigned to); + static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, +- unsigned to); ++ unsigned to); + +-static int yaffs_readlink(struct dentry *dentry, char __user * buffer, +- int buflen); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) ++#endif ++ ++static int yaffs_readlink(struct dentry *dentry, char __user *buffer, ++ int buflen); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) + static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); + #else + static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); +@@ -209,12 +265,17 @@ static int yaffs_follow_link(struct dent + static struct address_space_operations yaffs_file_address_operations = { + .readpage = yaffs_readpage, + .writepage = yaffs_writepage, ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++ .write_begin = yaffs_write_begin, ++ .write_end = yaffs_write_end, ++#else + .prepare_write = yaffs_prepare_write, + .commit_write = yaffs_commit_write, ++#endif + }; + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)) +-static struct file_operations yaffs_file_operations = { ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)) ++static const struct file_operations yaffs_file_operations = { + .read = do_sync_read, + .write = do_sync_write, + .aio_read = generic_file_aio_read, +@@ -224,11 +285,12 @@ static struct file_operations yaffs_file + .fsync = yaffs_sync_object, + .splice_read = generic_file_splice_read, + .splice_write = generic_file_splice_write, ++ .llseek = generic_file_llseek, + }; + +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 18)) + +-static struct file_operations yaffs_file_operations = { ++static const struct file_operations yaffs_file_operations = { + .read = do_sync_read, + .write = do_sync_write, + .aio_read = generic_file_aio_read, +@@ -241,29 +303,29 @@ static struct file_operations yaffs_file + + #else + +-static struct file_operations yaffs_file_operations = { ++static const struct file_operations yaffs_file_operations = { + .read = generic_file_read, + .write = generic_file_write, + .mmap = generic_file_mmap, + .flush = yaffs_file_flush, + .fsync = yaffs_sync_object, +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + .sendfile = generic_file_sendfile, + #endif + }; + #endif + +-static struct inode_operations yaffs_file_inode_operations = { ++static const struct inode_operations yaffs_file_inode_operations = { + .setattr = yaffs_setattr, + }; + +-static struct inode_operations yaffs_symlink_inode_operations = { ++static const struct inode_operations yaffs_symlink_inode_operations = { + .readlink = yaffs_readlink, + .follow_link = yaffs_follow_link, + .setattr = yaffs_setattr, + }; + +-static struct inode_operations yaffs_dir_inode_operations = { ++static const struct inode_operations yaffs_dir_inode_operations = { + .create = yaffs_create, + .lookup = yaffs_lookup, + .link = yaffs_link, +@@ -276,16 +338,21 @@ static struct inode_operations yaffs_dir + .setattr = yaffs_setattr, + }; + +-static struct file_operations yaffs_dir_operations = { ++static const struct file_operations yaffs_dir_operations = { + .read = generic_read_dir, + .readdir = yaffs_readdir, + .fsync = yaffs_sync_object, + }; + +-static struct super_operations yaffs_super_ops = { ++static const struct super_operations yaffs_super_ops = { + .statfs = yaffs_statfs, ++ ++#ifndef YAFFS_USE_OWN_IGET + .read_inode = yaffs_read_inode, ++#endif ++#ifdef YAFFS_HAS_PUT_INODE + .put_inode = yaffs_put_inode, ++#endif + .put_super = yaffs_put_super, + .delete_inode = yaffs_delete_inode, + .clear_inode = yaffs_clear_inode, +@@ -293,22 +360,21 @@ static struct super_operations yaffs_sup + .write_super = yaffs_write_super, + }; + +-static void yaffs_GrossLock(yaffs_Device * dev) ++static void yaffs_GrossLock(yaffs_Device *dev) + { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs locking\n")); +- ++ T(YAFFS_TRACE_OS, ("yaffs locking %p\n", current)); + down(&dev->grossLock); ++ T(YAFFS_TRACE_OS, ("yaffs locked %p\n", current)); + } + +-static void yaffs_GrossUnlock(yaffs_Device * dev) ++static void yaffs_GrossUnlock(yaffs_Device *dev) + { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs unlocking\n")); ++ T(YAFFS_TRACE_OS, ("yaffs unlocking %p\n", current)); + up(&dev->grossLock); +- + } + +-static int yaffs_readlink(struct dentry *dentry, char __user * buffer, +- int buflen) ++static int yaffs_readlink(struct dentry *dentry, char __user *buffer, ++ int buflen) + { + unsigned char *alias; + int ret; +@@ -329,7 +395,7 @@ static int yaffs_readlink(struct dentry + return ret; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) + static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) + #else + static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) +@@ -345,32 +411,31 @@ static int yaffs_follow_link(struct dent + + yaffs_GrossUnlock(dev); + +- if (!alias) +- { ++ if (!alias) { + ret = -ENOMEM; + goto out; +- } ++ } + + ret = vfs_follow_link(nd, alias); + kfree(alias); + out: +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) +- return ERR_PTR (ret); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) ++ return ERR_PTR(ret); + #else + return ret; + #endif + } + + struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, +- yaffs_Object * obj); ++ yaffs_Object *obj); + + /* + * Lookup is used to find objects in the fs + */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, +- struct nameidata *n) ++ struct nameidata *n) + #else + static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) + #endif +@@ -383,12 +448,11 @@ static struct dentry *yaffs_lookup(struc + yaffs_GrossLock(dev); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_lookup for %d:%s\n", +- yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); ++ ("yaffs_lookup for %d:%s\n", ++ yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); + +- obj = +- yaffs_FindObjectByName(yaffs_InodeToObject(dir), +- dentry->d_name.name); ++ obj = yaffs_FindObjectByName(yaffs_InodeToObject(dir), ++ dentry->d_name.name); + + obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */ + +@@ -397,13 +461,13 @@ static struct dentry *yaffs_lookup(struc + + if (obj) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_lookup found %d\n", obj->objectId)); ++ ("yaffs_lookup found %d\n", obj->objectId)); + + inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); + + if (inode) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_loookup dentry \n")); ++ ("yaffs_loookup dentry \n")); + /* #if 0 asserted by NCB for 2.5/6 compatability - falls through to + * d_add even if NULL inode */ + #if 0 +@@ -416,7 +480,7 @@ static struct dentry *yaffs_lookup(struc + } + + } else { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_lookup not found\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_lookup not found\n")); + + } + +@@ -425,20 +489,22 @@ static struct dentry *yaffs_lookup(struc + d_add(dentry, inode); + + return NULL; +- /* return (ERR_PTR(-EIO)); */ +- + } + ++ ++#ifdef YAFFS_HAS_PUT_INODE ++ + /* For now put inode is just for debugging + * Put inode is called when the inode **structure** is put. + */ + static void yaffs_put_inode(struct inode *inode) + { + T(YAFFS_TRACE_OS, +- ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, +- atomic_read(&inode->i_count))); ++ ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, ++ atomic_read(&inode->i_count))); + + } ++#endif + + /* clear is called to tell the fs to release any per-inode data it holds */ + static void yaffs_clear_inode(struct inode *inode) +@@ -449,9 +515,9 @@ static void yaffs_clear_inode(struct ino + obj = yaffs_InodeToObject(inode); + + T(YAFFS_TRACE_OS, +- ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, +- atomic_read(&inode->i_count), +- obj ? "object exists" : "null object")); ++ ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, ++ atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object")); + + if (obj) { + dev = obj->myDev; +@@ -486,23 +552,23 @@ static void yaffs_delete_inode(struct in + yaffs_Device *dev; + + T(YAFFS_TRACE_OS, +- ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, +- atomic_read(&inode->i_count), +- obj ? "object exists" : "null object")); ++ ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, ++ atomic_read(&inode->i_count), ++ obj ? "object exists" : "null object")); + + if (obj) { + dev = obj->myDev; + yaffs_GrossLock(dev); +- yaffs_DeleteFile(obj); ++ yaffs_DeleteObject(obj); + yaffs_GrossUnlock(dev); + } +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) +- truncate_inode_pages (&inode->i_data, 0); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 13)) ++ truncate_inode_pages(&inode->i_data, 0); + #endif + clear_inode(inode); + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_file_flush(struct file *file, fl_owner_t id) + #else + static int yaffs_file_flush(struct file *file) +@@ -513,8 +579,8 @@ static int yaffs_file_flush(struct file + yaffs_Device *dev = obj->myDev; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_file_flush object %d (%s)\n", obj->objectId, +- obj->dirty ? "dirty" : "clean")); ++ ("yaffs_file_flush object %d (%s)\n", obj->objectId, ++ obj->dirty ? "dirty" : "clean")); + + yaffs_GrossLock(dev); + +@@ -535,15 +601,15 @@ static int yaffs_readpage_nolock(struct + + yaffs_Device *dev; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage at %08x, size %08x\n", +- (unsigned)(pg->index << PAGE_CACHE_SHIFT), +- (unsigned)PAGE_CACHE_SIZE)); ++ T(YAFFS_TRACE_OS, ("yaffs_readpage at %08x, size %08x\n", ++ (unsigned)(pg->index << PAGE_CACHE_SHIFT), ++ (unsigned)PAGE_CACHE_SIZE)); + + obj = yaffs_DentryToObject(f->f_dentry); + + dev = obj->myDev; + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + BUG_ON(!PageLocked(pg)); + #else + if (!PageLocked(pg)) +@@ -555,9 +621,9 @@ static int yaffs_readpage_nolock(struct + + yaffs_GrossLock(dev); + +- ret = +- yaffs_ReadDataFromFile(obj, pg_buf, pg->index << PAGE_CACHE_SHIFT, +- PAGE_CACHE_SIZE); ++ ret = yaffs_ReadDataFromFile(obj, pg_buf, ++ pg->index << PAGE_CACHE_SHIFT, ++ PAGE_CACHE_SIZE); + + yaffs_GrossUnlock(dev); + +@@ -575,7 +641,7 @@ static int yaffs_readpage_nolock(struct + flush_dcache_page(pg); + kunmap(pg); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage done\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_readpage done\n")); + return ret; + } + +@@ -593,7 +659,7 @@ static int yaffs_readpage(struct file *f + + /* writepage inspired by/stolen from smbfs */ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_writepage(struct page *page, struct writeback_control *wbc) + #else + static int yaffs_writepage(struct page *page) +@@ -616,12 +682,11 @@ static int yaffs_writepage(struct page * + + if (offset > inode->i_size) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_writepage at %08x, inode size = %08x!!!\n", +- (unsigned)(page->index << PAGE_CACHE_SHIFT), +- (unsigned)inode->i_size)); ++ ("yaffs_writepage at %08x, inode size = %08x!!!\n", ++ (unsigned)(page->index << PAGE_CACHE_SHIFT), ++ (unsigned)inode->i_size)); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG " -> don't care!!\n")); ++ (" -> don't care!!\n")); + unlock_page(page); + return 0; + } +@@ -629,11 +694,10 @@ static int yaffs_writepage(struct page * + end_index = inode->i_size >> PAGE_CACHE_SHIFT; + + /* easy case */ +- if (page->index < end_index) { ++ if (page->index < end_index) + nBytes = PAGE_CACHE_SIZE; +- } else { ++ else + nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1); +- } + + get_page(page); + +@@ -643,19 +707,18 @@ static int yaffs_writepage(struct page * + yaffs_GrossLock(obj->myDev); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_writepage at %08x, size %08x\n", +- (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); ++ ("yaffs_writepage at %08x, size %08x\n", ++ (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "writepag0: obj = %05x, ino = %05x\n", +- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); ++ ("writepag0: obj = %05x, ino = %05x\n", ++ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); + +- nWritten = +- yaffs_WriteDataToFile(obj, buffer, page->index << PAGE_CACHE_SHIFT, +- nBytes, 0); ++ nWritten = yaffs_WriteDataToFile(obj, buffer, ++ page->index << PAGE_CACHE_SHIFT, nBytes, 0); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "writepag1: obj = %05x, ino = %05x\n", +- (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); ++ ("writepag1: obj = %05x, ino = %05x\n", ++ (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); + + yaffs_GrossUnlock(obj->myDev); + +@@ -667,100 +730,207 @@ static int yaffs_writepage(struct page * + return (nWritten == nBytes) ? 0 : -ENOSPC; + } + ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_begin(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned flags, ++ struct page **pagep, void **fsdata) ++{ ++ struct page *pg = NULL; ++ pgoff_t index = pos >> PAGE_CACHE_SHIFT; ++ uint32_t offset = pos & (PAGE_CACHE_SIZE - 1); ++ uint32_t to = offset + len; ++ ++ int ret = 0; ++ int space_held = 0; ++ ++ T(YAFFS_TRACE_OS, ("start yaffs_write_begin\n")); ++ /* Get a page */ ++#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 28) ++ pg = grab_cache_page_write_begin(mapping, index, flags); ++#else ++ pg = __grab_cache_page(mapping, index); ++#endif ++ ++ *pagep = pg; ++ if (!pg) { ++ ret = -ENOMEM; ++ goto out; ++ } ++ /* Get fs space */ ++ space_held = yaffs_hold_space(filp); ++ ++ if (!space_held) { ++ ret = -ENOSPC; ++ goto out; ++ } ++ ++ /* Update page if required */ ++ ++ if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) ++ ret = yaffs_readpage_nolock(filp, pg); ++ ++ if (ret) ++ goto out; ++ ++ /* Happy path return */ ++ T(YAFFS_TRACE_OS, ("end yaffs_write_begin - ok\n")); ++ ++ return 0; ++ ++out: ++ T(YAFFS_TRACE_OS, ("end yaffs_write_begin fail returning %d\n", ret)); ++ if (space_held) ++ yaffs_release_space(filp); ++ if (pg) { ++ unlock_page(pg); ++ page_cache_release(pg); ++ } ++ return ret; ++} ++ ++#else ++ + static int yaffs_prepare_write(struct file *f, struct page *pg, +- unsigned offset, unsigned to) ++ unsigned offset, unsigned to) + { ++ T(YAFFS_TRACE_OS, ("yaffs_prepair_write\n")); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_prepair_write\n")); + if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) + return yaffs_readpage_nolock(f, pg); +- + return 0; ++} ++#endif ++ ++#if (YAFFS_USE_WRITE_BEGIN_END > 0) ++static int yaffs_write_end(struct file *filp, struct address_space *mapping, ++ loff_t pos, unsigned len, unsigned copied, ++ struct page *pg, void *fsdadata) ++{ ++ int ret = 0; ++ void *addr, *kva; ++ uint32_t offset_into_page = pos & (PAGE_CACHE_SIZE - 1); ++ ++ kva = kmap(pg); ++ addr = kva + offset_into_page; ++ ++ T(YAFFS_TRACE_OS, ++ ("yaffs_write_end addr %x pos %x nBytes %d\n", ++ (unsigned) addr, ++ (int)pos, copied)); ++ ++ ret = yaffs_file_write(filp, addr, copied, &pos); ++ ++ if (ret != copied) { ++ T(YAFFS_TRACE_OS, ++ ("yaffs_write_end not same size ret %d copied %d\n", ++ ret, copied)); ++ SetPageError(pg); ++ ClearPageUptodate(pg); ++ } else { ++ SetPageUptodate(pg); ++ } ++ ++ kunmap(pg); + ++ yaffs_release_space(filp); ++ unlock_page(pg); ++ page_cache_release(pg); ++ return ret; + } ++#else + + static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, +- unsigned to) ++ unsigned to) + { ++ void *addr, *kva; + +- void *addr = page_address(pg) + offset; + loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; + int nBytes = to - offset; + int nWritten; + + unsigned spos = pos; +- unsigned saddr = (unsigned)addr; ++ unsigned saddr; ++ ++ kva = kmap(pg); ++ addr = kva + offset; ++ ++ saddr = (unsigned) addr; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr, +- spos, nBytes)); ++ ("yaffs_commit_write addr %x pos %x nBytes %d\n", ++ saddr, spos, nBytes)); + + nWritten = yaffs_file_write(f, addr, nBytes, &pos); + + if (nWritten != nBytes) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_commit_write not same size nWritten %d nBytes %d\n", +- nWritten, nBytes)); ++ ("yaffs_commit_write not same size nWritten %d nBytes %d\n", ++ nWritten, nBytes)); + SetPageError(pg); + ClearPageUptodate(pg); + } else { + SetPageUptodate(pg); + } + ++ kunmap(pg); ++ + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_commit_write returning %d\n", +- nWritten == nBytes ? 0 : nWritten)); ++ ("yaffs_commit_write returning %d\n", ++ nWritten == nBytes ? 0 : nWritten)); + + return nWritten == nBytes ? 0 : nWritten; +- + } ++#endif ++ + +-static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj) ++static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object *obj) + { + if (inode && obj) { + + + /* Check mode against the variant type and attempt to repair if broken. */ +- __u32 mode = obj->yst_mode; +- switch( obj->variantType ){ +- case YAFFS_OBJECT_TYPE_FILE : +- if( ! S_ISREG(mode) ){ +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFREG; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_SYMLINK : +- if( ! S_ISLNK(mode) ){ +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFLNK; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_DIRECTORY : +- if( ! S_ISDIR(mode) ){ +- obj->yst_mode &= ~S_IFMT; +- obj->yst_mode |= S_IFDIR; +- } +- +- break; +- case YAFFS_OBJECT_TYPE_UNKNOWN : +- case YAFFS_OBJECT_TYPE_HARDLINK : +- case YAFFS_OBJECT_TYPE_SPECIAL : +- default: +- /* TODO? */ +- break; +- } ++ __u32 mode = obj->yst_mode; ++ switch (obj->variantType) { ++ case YAFFS_OBJECT_TYPE_FILE: ++ if (!S_ISREG(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFREG; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_SYMLINK: ++ if (!S_ISLNK(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFLNK; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_DIRECTORY: ++ if (!S_ISDIR(mode)) { ++ obj->yst_mode &= ~S_IFMT; ++ obj->yst_mode |= S_IFDIR; ++ } ++ ++ break; ++ case YAFFS_OBJECT_TYPE_UNKNOWN: ++ case YAFFS_OBJECT_TYPE_HARDLINK: ++ case YAFFS_OBJECT_TYPE_SPECIAL: ++ default: ++ /* TODO? */ ++ break; ++ } ++ ++ inode->i_flags |= S_NOATIME; + + inode->i_ino = obj->objectId; + inode->i_mode = obj->yst_mode; + inode->i_uid = obj->yst_uid; + inode->i_gid = obj->yst_gid; +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 19)) + inode->i_blksize = inode->i_sb->s_blocksize; + #endif +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + + inode->i_rdev = old_decode_dev(obj->yst_rdev); + inode->i_atime.tv_sec = (time_t) (obj->yst_atime); +@@ -781,26 +951,25 @@ static void yaffs_FillInodeFromObject(st + inode->i_nlink = yaffs_GetObjectLinkCount(obj); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", +- inode->i_mode, inode->i_uid, inode->i_gid, +- (int)inode->i_size, atomic_read(&inode->i_count))); ++ ("yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", ++ inode->i_mode, inode->i_uid, inode->i_gid, ++ (int)inode->i_size, atomic_read(&inode->i_count))); + + switch (obj->yst_mode & S_IFMT) { + default: /* fifo, device or socket */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + init_special_inode(inode, obj->yst_mode, +- old_decode_dev(obj->yst_rdev)); ++ old_decode_dev(obj->yst_rdev)); + #else + init_special_inode(inode, obj->yst_mode, +- (dev_t) (obj->yst_rdev)); ++ (dev_t) (obj->yst_rdev)); + #endif + break; + case S_IFREG: /* file */ + inode->i_op = &yaffs_file_inode_operations; + inode->i_fop = &yaffs_file_operations; + inode->i_mapping->a_ops = +- &yaffs_file_address_operations; ++ &yaffs_file_address_operations; + break; + case S_IFDIR: /* directory */ + inode->i_op = &yaffs_dir_inode_operations; +@@ -817,34 +986,36 @@ static void yaffs_FillInodeFromObject(st + + } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_FileInode invalid parameters\n")); ++ ("yaffs_FileInode invalid parameters\n")); + } + + } + + struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, +- yaffs_Object * obj) ++ yaffs_Object *obj) + { + struct inode *inode; + + if (!sb) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_get_inode for NULL super_block!!\n")); ++ ("yaffs_get_inode for NULL super_block!!\n")); + return NULL; + + } + + if (!obj) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_get_inode for NULL object!!\n")); ++ ("yaffs_get_inode for NULL object!!\n")); + return NULL; + + } + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_get_inode for object %d\n", obj->objectId)); ++ ("yaffs_get_inode for object %d\n", obj->objectId)); + +- inode = iget(sb, obj->objectId); ++ inode = Y_IGET(sb, obj->objectId); ++ if (IS_ERR(inode)) ++ return NULL; + + /* NB Side effect: iget calls back to yaffs_read_inode(). */ + /* iget also increments the inode's i_count */ +@@ -854,7 +1025,7 @@ struct inode *yaffs_get_inode(struct sup + } + + static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, +- loff_t * pos) ++ loff_t *pos) + { + yaffs_Object *obj; + int nWritten, ipos; +@@ -869,28 +1040,26 @@ static ssize_t yaffs_file_write(struct f + + inode = f->f_dentry->d_inode; + +- if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) { ++ if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) + ipos = inode->i_size; +- } else { ++ else + ipos = *pos; +- } + +- if (!obj) { ++ if (!obj) + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_file_write: hey obj is null!\n")); +- } else { ++ ("yaffs_file_write: hey obj is null!\n")); ++ else + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_file_write about to write writing %d bytes" +- "to object %d at %d\n", +- n, obj->objectId, ipos)); +- } ++ ("yaffs_file_write about to write writing %zu bytes" ++ "to object %d at %d\n", ++ n, obj->objectId, ipos)); + + nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_file_write writing %d bytes, %d written at %d\n", +- n, nWritten, ipos)); ++ ("yaffs_file_write writing %zu bytes, %d written at %d\n", ++ n, nWritten, ipos)); ++ + if (nWritten > 0) { + ipos += nWritten; + *pos = ipos; +@@ -899,10 +1068,9 @@ static ssize_t yaffs_file_write(struct f + inode->i_blocks = (ipos + 511) >> 9; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG +- "yaffs_file_write size updated to %d bytes, " +- "%d blocks\n", +- ipos, (int)(inode->i_blocks))); ++ ("yaffs_file_write size updated to %d bytes, " ++ "%d blocks\n", ++ ipos, (int)(inode->i_blocks))); + } + + } +@@ -910,13 +1078,54 @@ static ssize_t yaffs_file_write(struct f + return nWritten == 0 ? -ENOSPC : nWritten; + } + ++/* Space holding and freeing is done to ensure we have space available for write_begin/end */ ++/* For now we just assume few parallel writes and check against a small number. */ ++/* Todo: need to do this with a counter to handle parallel reads better */ ++ ++static ssize_t yaffs_hold_space(struct file *f) ++{ ++ yaffs_Object *obj; ++ yaffs_Device *dev; ++ ++ int nFreeChunks; ++ ++ ++ obj = yaffs_DentryToObject(f->f_dentry); ++ ++ dev = obj->myDev; ++ ++ yaffs_GrossLock(dev); ++ ++ nFreeChunks = yaffs_GetNumberOfFreeChunks(dev); ++ ++ yaffs_GrossUnlock(dev); ++ ++ return (nFreeChunks > 20) ? 1 : 0; ++} ++ ++static void yaffs_release_space(struct file *f) ++{ ++ yaffs_Object *obj; ++ yaffs_Device *dev; ++ ++ ++ obj = yaffs_DentryToObject(f->f_dentry); ++ ++ dev = obj->myDev; ++ ++ yaffs_GrossLock(dev); ++ ++ ++ yaffs_GrossUnlock(dev); ++} ++ + static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) + { + yaffs_Object *obj; + yaffs_Device *dev; + struct inode *inode = f->f_dentry->d_inode; + unsigned long offset, curoffs; +- struct list_head *i; ++ struct ylist_head *i; + yaffs_Object *l; + + char name[YAFFS_MAX_NAME_LENGTH + 1]; +@@ -932,24 +1141,20 @@ static int yaffs_readdir(struct file *f, + + if (offset == 0) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_readdir: entry . ino %d \n", +- (int)inode->i_ino)); +- if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) +- < 0) { ++ ("yaffs_readdir: entry . ino %d \n", ++ (int)inode->i_ino)); ++ if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) < 0) + goto out; +- } + offset++; + f->f_pos++; + } + if (offset == 1) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_readdir: entry .. ino %d \n", +- (int)f->f_dentry->d_parent->d_inode->i_ino)); +- if (filldir +- (dirent, "..", 2, offset, +- f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) { ++ ("yaffs_readdir: entry .. ino %d \n", ++ (int)f->f_dentry->d_parent->d_inode->i_ino)); ++ if (filldir(dirent, "..", 2, offset, ++ f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) + goto out; +- } + offset++; + f->f_pos++; + } +@@ -965,35 +1170,32 @@ static int yaffs_readdir(struct file *f, + f->f_version = inode->i_version; + } + +- list_for_each(i, &obj->variant.directoryVariant.children) { ++ ylist_for_each(i, &obj->variant.directoryVariant.children) { + curoffs++; + if (curoffs >= offset) { +- l = list_entry(i, yaffs_Object, siblings); ++ l = ylist_entry(i, yaffs_Object, siblings); + + yaffs_GetObjectName(l, name, + YAFFS_MAX_NAME_LENGTH + 1); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_readdir: %s inode %d\n", name, ++ ("yaffs_readdir: %s inode %d\n", name, + yaffs_GetObjectInode(l))); + + if (filldir(dirent, +- name, +- strlen(name), +- offset, +- yaffs_GetObjectInode(l), +- yaffs_GetObjectType(l)) +- < 0) { ++ name, ++ strlen(name), ++ offset, ++ yaffs_GetObjectInode(l), ++ yaffs_GetObjectType(l)) < 0) + goto up_and_out; +- } + + offset++; + f->f_pos++; + } + } + +- up_and_out: +- out: +- ++up_and_out: ++out: + yaffs_GrossUnlock(dev); + + return 0; +@@ -1002,12 +1204,19 @@ static int yaffs_readdir(struct file *f, + /* + * File creation. Allocate an inode, and we're done.. + */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++ ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++#define YCRED(x) x ++#else ++#define YCRED(x) (x->cred) ++#endif ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- dev_t rdev) ++ dev_t rdev) + #else + static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, +- int rdev) ++ int rdev) + #endif + { + struct inode *inode; +@@ -1018,25 +1227,25 @@ static int yaffs_mknod(struct inode *dir + yaffs_Object *parent = yaffs_InodeToObject(dir); + + int error = -ENOSPC; +- uid_t uid = current->fsuid; +- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; ++ uid_t uid = YCRED(current)->fsuid; ++ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; + +- if((dir->i_mode & S_ISGID) && S_ISDIR(mode)) ++ if ((dir->i_mode & S_ISGID) && S_ISDIR(mode)) + mode |= S_ISGID; + + if (parent) { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod: parent object %d type %d\n", +- parent->objectId, parent->variantType)); ++ ("yaffs_mknod: parent object %d type %d\n", ++ parent->objectId, parent->variantType)); + } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod: could not get parent object\n")); ++ ("yaffs_mknod: could not get parent object\n")); + return -EPERM; + } + + T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, " +- "mode %x dev %x\n", +- dentry->d_name.name, mode, rdev)); ++ "mode %x dev %x\n", ++ dentry->d_name.name, mode, rdev)); + + dev = parent->myDev; + +@@ -1045,33 +1254,28 @@ static int yaffs_mknod(struct inode *dir + switch (mode & S_IFMT) { + default: + /* Special (socket, fifo, device...) */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG +- "yaffs_mknod: making special\n")); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) +- obj = +- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, +- gid, old_encode_dev(rdev)); +-#else +- obj = +- yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, +- gid, rdev); ++ T(YAFFS_TRACE_OS, ("yaffs_mknod: making special\n")); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) ++ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, ++ gid, old_encode_dev(rdev)); ++#else ++ obj = yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, ++ gid, rdev); + #endif + break; + case S_IFREG: /* file */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); +- obj = +- yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, +- gid); ++ T(YAFFS_TRACE_OS, ("yaffs_mknod: making file\n")); ++ obj = yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, ++ gid); + break; + case S_IFDIR: /* directory */ + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod: making directory\n")); +- obj = +- yaffs_MknodDirectory(parent, dentry->d_name.name, mode, +- uid, gid); ++ ("yaffs_mknod: making directory\n")); ++ obj = yaffs_MknodDirectory(parent, dentry->d_name.name, mode, ++ uid, gid); + break; + case S_IFLNK: /* symlink */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_mknod: making symlink\n")); + obj = NULL; /* Do we ever get here? */ + break; + } +@@ -1083,12 +1287,12 @@ static int yaffs_mknod(struct inode *dir + inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); + d_instantiate(dentry, inode); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod created object %d count = %d\n", +- obj->objectId, atomic_read(&inode->i_count))); ++ ("yaffs_mknod created object %d count = %d\n", ++ obj->objectId, atomic_read(&inode->i_count))); + error = 0; + } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_mknod failed making object\n")); ++ ("yaffs_mknod failed making object\n")); + error = -ENOMEM; + } + +@@ -1098,25 +1302,19 @@ static int yaffs_mknod(struct inode *dir + static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) + { + int retVal; +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mkdir\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_mkdir\n")); + retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); +-#if 0 +- /* attempt to fix dir bug - didn't work */ +- if (!retVal) { +- dget(dentry); +- } +-#endif + return retVal; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, + struct nameidata *n) + #else + static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) + #endif + { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_create\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_create\n")); + return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); + } + +@@ -1127,8 +1325,8 @@ static int yaffs_unlink(struct inode *di + yaffs_Device *dev; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_unlink %d:%s\n", (int)(dir->i_ino), +- dentry->d_name.name)); ++ ("yaffs_unlink %d:%s\n", (int)(dir->i_ino), ++ dentry->d_name.name)); + + dev = yaffs_InodeToObject(dir)->myDev; + +@@ -1151,82 +1349,74 @@ static int yaffs_unlink(struct inode *di + * Create a link... + */ + static int yaffs_link(struct dentry *old_dentry, struct inode *dir, +- struct dentry *dentry) ++ struct dentry *dentry) + { + struct inode *inode = old_dentry->d_inode; + yaffs_Object *obj = NULL; + yaffs_Object *link = NULL; + yaffs_Device *dev; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_link\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_link\n")); + + obj = yaffs_InodeToObject(inode); + dev = obj->myDev; + + yaffs_GrossLock(dev); + +- if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ +- { +- link = +- yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, +- obj); +- } ++ if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ ++ link = yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, ++ obj); + + if (link) { + old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj); + d_instantiate(dentry, old_dentry->d_inode); + atomic_inc(&old_dentry->d_inode->i_count); + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_link link count %d i_count %d\n", +- old_dentry->d_inode->i_nlink, +- atomic_read(&old_dentry->d_inode->i_count))); +- ++ ("yaffs_link link count %d i_count %d\n", ++ old_dentry->d_inode->i_nlink, ++ atomic_read(&old_dentry->d_inode->i_count))); + } + + yaffs_GrossUnlock(dev); + +- if (link) { +- ++ if (link) + return 0; +- } + + return -EPERM; + } + + static int yaffs_symlink(struct inode *dir, struct dentry *dentry, +- const char *symname) ++ const char *symname) + { + yaffs_Object *obj; + yaffs_Device *dev; +- uid_t uid = current->fsuid; +- gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; ++ uid_t uid = YCRED(current)->fsuid; ++ gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : YCRED(current)->fsgid; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_symlink\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_symlink\n")); + + dev = yaffs_InodeToObject(dir)->myDev; + yaffs_GrossLock(dev); + obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name, +- S_IFLNK | S_IRWXUGO, uid, gid, symname); ++ S_IFLNK | S_IRWXUGO, uid, gid, symname); + yaffs_GrossUnlock(dev); + + if (obj) { +- + struct inode *inode; + + inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); + d_instantiate(dentry, inode); +- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink created OK\n")); ++ T(YAFFS_TRACE_OS, ("symlink created OK\n")); + return 0; + } else { +- T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink not created\n")); +- ++ T(YAFFS_TRACE_OS, ("symlink not created\n")); + } + + return -ENOMEM; + } + + static int yaffs_sync_object(struct file *file, struct dentry *dentry, +- int datasync) ++ int datasync) + { + + yaffs_Object *obj; +@@ -1236,7 +1426,7 @@ static int yaffs_sync_object(struct file + + dev = obj->myDev; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_object\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_sync_object\n")); + yaffs_GrossLock(dev); + yaffs_FlushFile(obj, 1); + yaffs_GrossUnlock(dev); +@@ -1255,41 +1445,36 @@ static int yaffs_rename(struct inode *ol + int retVal = YAFFS_FAIL; + yaffs_Object *target; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_rename\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_rename\n")); + dev = yaffs_InodeToObject(old_dir)->myDev; + + yaffs_GrossLock(dev); + + /* Check if the target is an existing directory that is not empty. */ +- target = +- yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), +- new_dentry->d_name.name); ++ target = yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), ++ new_dentry->d_name.name); + + + +- if (target && +- target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && +- !list_empty(&target->variant.directoryVariant.children)) { ++ if (target && target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && ++ !ylist_empty(&target->variant.directoryVariant.children)) { + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "target is non-empty dir\n")); ++ T(YAFFS_TRACE_OS, ("target is non-empty dir\n")); + + retVal = YAFFS_FAIL; + } else { +- + /* Now does unlinking internally using shadowing mechanism */ +- T(YAFFS_TRACE_OS, (KERN_DEBUG "calling yaffs_RenameObject\n")); +- +- retVal = +- yaffs_RenameObject(yaffs_InodeToObject(old_dir), +- old_dentry->d_name.name, +- yaffs_InodeToObject(new_dir), +- new_dentry->d_name.name); ++ T(YAFFS_TRACE_OS, ("calling yaffs_RenameObject\n")); + ++ retVal = yaffs_RenameObject(yaffs_InodeToObject(old_dir), ++ old_dentry->d_name.name, ++ yaffs_InodeToObject(new_dir), ++ new_dentry->d_name.name); + } + yaffs_GrossUnlock(dev); + + if (retVal == YAFFS_OK) { +- if(target) { ++ if (target) { + new_dentry->d_inode->i_nlink--; + mark_inode_dirty(new_dentry->d_inode); + } +@@ -1298,7 +1483,6 @@ static int yaffs_rename(struct inode *ol + } else { + return -ENOTEMPTY; + } +- + } + + static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) +@@ -1308,15 +1492,15 @@ static int yaffs_setattr(struct dentry * + yaffs_Device *dev; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_setattr of object %d\n", +- yaffs_InodeToObject(inode)->objectId)); +- +- if ((error = inode_change_ok(inode, attr)) == 0) { ++ ("yaffs_setattr of object %d\n", ++ yaffs_InodeToObject(inode)->objectId)); + ++ error = inode_change_ok(inode, attr); ++ if (error == 0) { + dev = yaffs_InodeToObject(inode)->myDev; + yaffs_GrossLock(dev); + if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) == +- YAFFS_OK) { ++ YAFFS_OK) { + error = 0; + } else { + error = -EPERM; +@@ -1328,12 +1512,12 @@ static int yaffs_setattr(struct dentry * + return error; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) + { + yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; + struct super_block *sb = dentry->d_sb; +-#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) + { + yaffs_Device *dev = yaffs_SuperToDevice(sb); +@@ -1343,32 +1527,53 @@ static int yaffs_statfs(struct super_blo + yaffs_Device *dev = yaffs_SuperToDevice(sb); + #endif + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_statfs\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_statfs\n")); + + yaffs_GrossLock(dev); + + buf->f_type = YAFFS_MAGIC; + buf->f_bsize = sb->s_blocksize; + buf->f_namelen = 255; +- if (sb->s_blocksize > dev->nDataBytesPerChunk) { ++ ++ if (dev->nDataBytesPerChunk & (dev->nDataBytesPerChunk - 1)) { ++ /* Do this if chunk size is not a power of 2 */ ++ ++ uint64_t bytesInDev; ++ uint64_t bytesFree; ++ ++ bytesInDev = ((uint64_t)((dev->endBlock - dev->startBlock + 1))) * ++ ((uint64_t)(dev->nChunksPerBlock * dev->nDataBytesPerChunk)); ++ ++ do_div(bytesInDev, sb->s_blocksize); /* bytesInDev becomes the number of blocks */ ++ buf->f_blocks = bytesInDev; ++ ++ bytesFree = ((uint64_t)(yaffs_GetNumberOfFreeChunks(dev))) * ++ ((uint64_t)(dev->nDataBytesPerChunk)); ++ ++ do_div(bytesFree, sb->s_blocksize); ++ ++ buf->f_bfree = bytesFree; ++ ++ } else if (sb->s_blocksize > dev->nDataBytesPerChunk) { + + buf->f_blocks = +- (dev->endBlock - dev->startBlock + +- 1) * dev->nChunksPerBlock / (sb->s_blocksize / +- dev->nDataBytesPerChunk); ++ (dev->endBlock - dev->startBlock + 1) * ++ dev->nChunksPerBlock / ++ (sb->s_blocksize / dev->nDataBytesPerChunk); + buf->f_bfree = +- yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize / +- dev->nDataBytesPerChunk); ++ yaffs_GetNumberOfFreeChunks(dev) / ++ (sb->s_blocksize / dev->nDataBytesPerChunk); + } else { +- + buf->f_blocks = +- (dev->endBlock - dev->startBlock + +- 1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk / +- sb->s_blocksize); ++ (dev->endBlock - dev->startBlock + 1) * ++ dev->nChunksPerBlock * ++ (dev->nDataBytesPerChunk / sb->s_blocksize); ++ + buf->f_bfree = +- yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk / +- sb->s_blocksize); ++ yaffs_GetNumberOfFreeChunks(dev) * ++ (dev->nDataBytesPerChunk / sb->s_blocksize); + } ++ + buf->f_files = 0; + buf->f_ffree = 0; + buf->f_bavail = buf->f_bfree; +@@ -1378,18 +1583,19 @@ static int yaffs_statfs(struct super_blo + } + + +-/** + static int yaffs_do_sync_fs(struct super_block *sb) + { + + yaffs_Device *dev = yaffs_SuperToDevice(sb); +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_do_sync_fs\n")); + +- if(sb->s_dirt) { ++ if (sb->s_dirt) { + yaffs_GrossLock(dev); + +- if(dev) ++ if (dev) { ++ yaffs_FlushEntireDeviceCache(dev); + yaffs_CheckpointSave(dev); ++ } + + yaffs_GrossUnlock(dev); + +@@ -1397,35 +1603,73 @@ static int yaffs_do_sync_fs(struct super + } + return 0; + } +-**/ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static void yaffs_write_super(struct super_block *sb) + #else + static int yaffs_write_super(struct super_block *sb) + #endif + { + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n")); +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) +- return 0; /* yaffs_do_sync_fs(sb);*/ ++ T(YAFFS_TRACE_OS, ("yaffs_write_super\n")); ++ if (yaffs_auto_checkpoint >= 2) ++ yaffs_do_sync_fs(sb); ++#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 18)) ++ return 0; + #endif + } + + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_sync_fs(struct super_block *sb, int wait) + #else + static int yaffs_sync_fs(struct super_block *sb) + #endif + { ++ T(YAFFS_TRACE_OS, ("yaffs_sync_fs\n")); ++ ++ if (yaffs_auto_checkpoint >= 1) ++ yaffs_do_sync_fs(sb); ++ ++ return 0; ++} ++ ++#ifdef YAFFS_USE_OWN_IGET ++ ++static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) ++{ ++ struct inode *inode; ++ yaffs_Object *obj; ++ yaffs_Device *dev = yaffs_SuperToDevice(sb); ++ ++ T(YAFFS_TRACE_OS, ++ ("yaffs_iget for %lu\n", ino)); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n")); ++ inode = iget_locked(sb, ino); ++ if (!inode) ++ return ERR_PTR(-ENOMEM); ++ if (!(inode->i_state & I_NEW)) ++ return inode; ++ ++ /* NB This is called as a side effect of other functions, but ++ * we had to release the lock to prevent deadlocks, so ++ * need to lock again. ++ */ + +- return 0; /* yaffs_do_sync_fs(sb);*/ ++ yaffs_GrossLock(dev); + ++ obj = yaffs_FindObjectByNumber(dev, inode->i_ino); ++ ++ yaffs_FillInodeFromObject(inode, obj); ++ ++ yaffs_GrossUnlock(dev); ++ ++ unlock_new_inode(inode); ++ return inode; + } + ++#else + + static void yaffs_read_inode(struct inode *inode) + { +@@ -1438,7 +1682,7 @@ static void yaffs_read_inode(struct inod + yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb); + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_read_inode for %d\n", (int)inode->i_ino)); ++ ("yaffs_read_inode for %d\n", (int)inode->i_ino)); + + yaffs_GrossLock(dev); + +@@ -1449,18 +1693,20 @@ static void yaffs_read_inode(struct inod + yaffs_GrossUnlock(dev); + } + +-static LIST_HEAD(yaffs_dev_list); ++#endif ++ ++static YLIST_HEAD(yaffs_dev_list); + +-#if 0 // not used ++#if 0 /* not used */ + static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data) + { + yaffs_Device *dev = yaffs_SuperToDevice(sb); + +- if( *flags & MS_RDONLY ) { ++ if (*flags & MS_RDONLY) { + struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; + + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_remount_fs: %s: RO\n", dev->name )); ++ ("yaffs_remount_fs: %s: RO\n", dev->name)); + + yaffs_GrossLock(dev); + +@@ -1472,10 +1718,9 @@ static int yaffs_remount_fs(struct super + mtd->sync(mtd); + + yaffs_GrossUnlock(dev); +- } +- else { ++ } else { + T(YAFFS_TRACE_OS, +- (KERN_DEBUG "yaffs_remount_fs: %s: RW\n", dev->name )); ++ ("yaffs_remount_fs: %s: RW\n", dev->name)); + } + + return 0; +@@ -1486,7 +1731,7 @@ static void yaffs_put_super(struct super + { + yaffs_Device *dev = yaffs_SuperToDevice(sb); + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n")); ++ T(YAFFS_TRACE_OS, ("yaffs_put_super\n")); + + yaffs_GrossLock(dev); + +@@ -1494,18 +1739,17 @@ static void yaffs_put_super(struct super + + yaffs_CheckpointSave(dev); + +- if (dev->putSuperFunc) { ++ if (dev->putSuperFunc) + dev->putSuperFunc(sb); +- } + + yaffs_Deinitialise(dev); + + yaffs_GrossUnlock(dev); + + /* we assume this is protected by lock_kernel() in mount/umount */ +- list_del(&dev->devList); ++ ylist_del(&dev->devList); + +- if(dev->spareBuffer){ ++ if (dev->spareBuffer) { + YFREE(dev->spareBuffer); + dev->spareBuffer = NULL; + } +@@ -1516,12 +1760,10 @@ static void yaffs_put_super(struct super + + static void yaffs_MTDPutSuper(struct super_block *sb) + { +- + struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; + +- if (mtd->sync) { ++ if (mtd->sync) + mtd->sync(mtd); +- } + + put_mtd_device(mtd); + } +@@ -1531,9 +1773,9 @@ static void yaffs_MarkSuperBlockDirty(vo + { + struct super_block *sb = (struct super_block *)vsb; + +- T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb)); +-// if(sb) +-// sb->s_dirt = 1; ++ T(YAFFS_TRACE_OS, ("yaffs_MarkSuperBlockDirty() sb = %p\n", sb)); ++ if (sb) ++ sb->s_dirt = 1; + } + + typedef struct { +@@ -1546,48 +1788,48 @@ typedef struct { + #define MAX_OPT_LEN 20 + static int yaffs_parse_options(yaffs_options *options, const char *options_str) + { +- char cur_opt[MAX_OPT_LEN+1]; ++ char cur_opt[MAX_OPT_LEN + 1]; + int p; + int error = 0; + + /* Parse through the options which is a comma seperated list */ + +- while(options_str && *options_str && !error){ +- memset(cur_opt,0,MAX_OPT_LEN+1); ++ while (options_str && *options_str && !error) { ++ memset(cur_opt, 0, MAX_OPT_LEN + 1); + p = 0; + +- while(*options_str && *options_str != ','){ +- if(p < MAX_OPT_LEN){ ++ while (*options_str && *options_str != ',') { ++ if (p < MAX_OPT_LEN) { + cur_opt[p] = *options_str; + p++; + } + options_str++; + } + +- if(!strcmp(cur_opt,"inband-tags")) ++ if (!strcmp(cur_opt, "inband-tags")) + options->inband_tags = 1; +- else if(!strcmp(cur_opt,"no-cache")) ++ else if (!strcmp(cur_opt, "no-cache")) + options->no_cache = 1; +- else if(!strcmp(cur_opt,"no-checkpoint-read")) ++ else if (!strcmp(cur_opt, "no-checkpoint-read")) + options->skip_checkpoint_read = 1; +- else if(!strcmp(cur_opt,"no-checkpoint-write")) ++ else if (!strcmp(cur_opt, "no-checkpoint-write")) + options->skip_checkpoint_write = 1; +- else if(!strcmp(cur_opt,"no-checkpoint")){ ++ else if (!strcmp(cur_opt, "no-checkpoint")) { + options->skip_checkpoint_read = 1; + options->skip_checkpoint_write = 1; + } else { +- printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",cur_opt); ++ printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n", ++ cur_opt); + error = 1; + } +- + } + + return error; + } + + static struct super_block *yaffs_internal_read_super(int yaffsVersion, +- struct super_block *sb, +- void *data, int silent) ++ struct super_block *sb, ++ void *data, int silent) + { + int nBlocks; + struct inode *inode = NULL; +@@ -1602,6 +1844,7 @@ static struct super_block *yaffs_interna + + sb->s_magic = YAFFS_MAGIC; + sb->s_op = &yaffs_super_ops; ++ sb->s_flags |= MS_NOATIME; + + if (!sb) + printk(KERN_INFO "yaffs: sb is NULL\n"); +@@ -1614,14 +1857,14 @@ static struct super_block *yaffs_interna + sb->s_dev, + yaffs_devname(sb, devname_buf)); + +- if(!data_str) ++ if (!data_str) + data_str = ""; + +- printk(KERN_INFO "yaffs: passed flags \"%s\"\n",data_str); ++ printk(KERN_INFO "yaffs: passed flags \"%s\"\n", data_str); + +- memset(&options,0,sizeof(options)); ++ memset(&options, 0, sizeof(options)); + +- if(yaffs_parse_options(&options,data_str)){ ++ if (yaffs_parse_options(&options, data_str)) { + /* Option parsing failed */ + return NULL; + } +@@ -1645,9 +1888,9 @@ static struct super_block *yaffs_interna + yaffs_devname(sb, devname_buf))); + + /* Check it's an mtd device..... */ +- if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) { ++ if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) + return NULL; /* This isn't an mtd device */ +- } ++ + /* Get the device */ + mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); + if (!mtd) { +@@ -1673,29 +1916,23 @@ static struct super_block *yaffs_interna + T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd))); + T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize)); + T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize)); +- T(YAFFS_TRACE_OS, (" size %d\n", mtd->size)); ++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 29) ++ T(YAFFS_TRACE_OS, (" size %u\n", mtd->size)); ++#else ++ T(YAFFS_TRACE_OS, (" size %lld\n", mtd->size)); ++#endif + + #ifdef CONFIG_YAFFS_AUTO_YAFFS2 + +- if (yaffsVersion == 1 && +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- mtd->writesize >= 2048) { +-#else +- mtd->oobblock >= 2048) { +-#endif +- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n")); +- yaffsVersion = 2; ++ if (yaffsVersion == 1 && WRITE_SIZE(mtd) >= 2048) { ++ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs2\n")); ++ yaffsVersion = 2; + } + + /* Added NCB 26/5/2006 for completeness */ +- if (yaffsVersion == 2 && +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- mtd->writesize == 512) { +-#else +- mtd->oobblock == 512) { +-#endif +- T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n")); +- yaffsVersion = 1; ++ if (yaffsVersion == 2 && !options.inband_tags && WRITE_SIZE(mtd) == 512) { ++ T(YAFFS_TRACE_ALWAYS, ("yaffs: auto selecting yaffs1\n")); ++ yaffsVersion = 1; + } + + #endif +@@ -1707,7 +1944,7 @@ static struct super_block *yaffs_interna + !mtd->block_markbad || + !mtd->read || + !mtd->write || +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + !mtd->read_oob || !mtd->write_oob) { + #else + !mtd->write_ecc || +@@ -1719,12 +1956,9 @@ static struct super_block *yaffs_interna + return NULL; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE || +-#else +- if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE || +-#endif +- mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) { ++ if ((WRITE_SIZE(mtd) < YAFFS_MIN_YAFFS2_CHUNK_SIZE || ++ mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) && ++ !options.inband_tags) { + T(YAFFS_TRACE_ALWAYS, + ("yaffs: MTD device does not have the " + "right page sizes\n")); +@@ -1735,7 +1969,7 @@ static struct super_block *yaffs_interna + if (!mtd->erase || + !mtd->read || + !mtd->write || +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + !mtd->read_oob || !mtd->write_oob) { + #else + !mtd->write_ecc || +@@ -1761,7 +1995,7 @@ static struct super_block *yaffs_interna + * Set the yaffs_Device up for mtd + */ + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); + #else + sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); +@@ -1780,13 +2014,15 @@ static struct super_block *yaffs_interna + + /* Set up the memory size parameters.... */ + +- nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK); ++ nBlocks = YCALCBLOCKS(mtd->size, (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK)); ++ + dev->startBlock = 0; + dev->endBlock = nBlocks - 1; + dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; +- dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK; ++ dev->totalBytesPerChunk = YAFFS_BYTES_PER_CHUNK; + dev->nReservedBlocks = 5; + dev->nShortOpCaches = (options.no_cache) ? 0 : 10; ++ dev->inbandTags = options.inband_tags; + + /* ... and the functions. */ + if (yaffsVersion == 2) { +@@ -1798,20 +2034,19 @@ static struct super_block *yaffs_interna + dev->queryNANDBlock = nandmtd2_QueryNANDBlock; + dev->spareBuffer = YMALLOC(mtd->oobsize); + dev->isYaffs2 = 1; +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- dev->nDataBytesPerChunk = mtd->writesize; ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ dev->totalBytesPerChunk = mtd->writesize; + dev->nChunksPerBlock = mtd->erasesize / mtd->writesize; + #else +- dev->nDataBytesPerChunk = mtd->oobblock; ++ dev->totalBytesPerChunk = mtd->oobblock; + dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; + #endif +- nBlocks = mtd->size / mtd->erasesize; ++ nBlocks = YCALCBLOCKS(mtd->size, mtd->erasesize); + +- dev->nCheckpointReservedBlocks = CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS; + dev->startBlock = 0; + dev->endBlock = nBlocks - 1; + } else { +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + /* use the MTD interface in yaffs_mtdif1.c */ + dev->writeChunkWithTagsToNAND = + nandmtd1_WriteChunkWithTagsToNAND; +@@ -1847,7 +2082,7 @@ static struct super_block *yaffs_interna + dev->skipCheckpointWrite = options.skip_checkpoint_write; + + /* we assume this is protected by lock_kernel() in mount/umount */ +- list_add_tail(&dev->devList, &yaffs_dev_list); ++ ylist_add_tail(&dev->devList, &yaffs_dev_list); + + init_MUTEX(&dev->grossLock); + +@@ -1884,20 +2119,23 @@ static struct super_block *yaffs_interna + return NULL; + } + sb->s_root = root; ++ sb->s_dirt = !dev->isCheckpointed; ++ T(YAFFS_TRACE_ALWAYS, ++ ("yaffs_read_super: isCheckpointed %d\n", dev->isCheckpointed)); + + T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n")); + return sb; + } + + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, + int silent) + { + return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs_read_super(struct file_system_type *fs, + int flags, const char *dev_name, + void *data, struct vfsmount *mnt) +@@ -1938,14 +2176,14 @@ static DECLARE_FSTYPE(yaffs_fs_type, "ya + + #ifdef CONFIG_YAFFS_YAFFS2 + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 5, 0)) + static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, + int silent) + { + return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; + } + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) + static int yaffs2_read_super(struct file_system_type *fs, + int flags, const char *dev_name, void *data, + struct vfsmount *mnt) +@@ -1990,12 +2228,12 @@ static char *yaffs_dump_dev(char *buf, y + { + buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); + buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); ++ buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk); + buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); + buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); + buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); + buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks); + buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks); +- buf += sprintf(buf, "nCheckptResBlocks.. %d\n", dev->nCheckpointReservedBlocks); + buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint); + buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated); + buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes); +@@ -2006,10 +2244,8 @@ static char *yaffs_dump_dev(char *buf, y + buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads); + buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures); + buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies); +- buf += +- sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); +- buf += +- sprintf(buf, "passiveGCs......... %d\n", ++ buf += sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); ++ buf += sprintf(buf, "passiveGCs......... %d\n", + dev->passiveGarbageCollections); + buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites); + buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches); +@@ -2025,6 +2261,7 @@ static char *yaffs_dump_dev(char *buf, y + sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions); + buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC); + buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2); ++ buf += sprintf(buf, "inbandTags......... %d\n", dev->inbandTags); + + return buf; + } +@@ -2033,7 +2270,7 @@ static int yaffs_proc_read(char *page, + char **start, + off_t offset, int count, int *eof, void *data) + { +- struct list_head *item; ++ struct ylist_head *item; + char *buf = page; + int step = offset; + int n = 0; +@@ -2057,8 +2294,8 @@ static int yaffs_proc_read(char *page, + lock_kernel(); + + /* Locate and print the Nth entry. Order N-squared but N is small. */ +- list_for_each(item, &yaffs_dev_list) { +- yaffs_Device *dev = list_entry(item, yaffs_Device, devList); ++ ylist_for_each(item, &yaffs_dev_list) { ++ yaffs_Device *dev = ylist_entry(item, yaffs_Device, devList); + if (n < step) { + n++; + continue; +@@ -2119,7 +2356,7 @@ static int yaffs_proc_write(struct file + char *end; + char *mask_name; + const char *x; +- char substring[MAX_MASK_NAME_LENGTH+1]; ++ char substring[MAX_MASK_NAME_LENGTH + 1]; + int i; + int done = 0; + int add, len = 0; +@@ -2129,9 +2366,8 @@ static int yaffs_proc_write(struct file + + while (!done && (pos < count)) { + done = 1; +- while ((pos < count) && isspace(buf[pos])) { ++ while ((pos < count) && isspace(buf[pos])) + pos++; +- } + + switch (buf[pos]) { + case '+': +@@ -2148,20 +2384,21 @@ static int yaffs_proc_write(struct file + mask_name = NULL; + + mask_bitfield = simple_strtoul(buf + pos, &end, 0); ++ + if (end > buf + pos) { + mask_name = "numeral"; + len = end - (buf + pos); + pos += len; + done = 0; + } else { +- for(x = buf + pos, i = 0; +- (*x == '_' || (*x >='a' && *x <= 'z')) && +- i <MAX_MASK_NAME_LENGTH; x++, i++, pos++) +- substring[i] = *x; ++ for (x = buf + pos, i = 0; ++ (*x == '_' || (*x >= 'a' && *x <= 'z')) && ++ i < MAX_MASK_NAME_LENGTH; x++, i++, pos++) ++ substring[i] = *x; + substring[i] = '\0'; + + for (i = 0; mask_flags[i].mask_name != NULL; i++) { +- if(strcmp(substring,mask_flags[i].mask_name) == 0){ ++ if (strcmp(substring, mask_flags[i].mask_name) == 0) { + mask_name = mask_flags[i].mask_name; + mask_bitfield = mask_flags[i].mask_bitfield; + done = 0; +@@ -2172,7 +2409,7 @@ static int yaffs_proc_write(struct file + + if (mask_name != NULL) { + done = 0; +- switch(add) { ++ switch (add) { + case '-': + rg &= ~mask_bitfield; + break; +@@ -2191,13 +2428,13 @@ static int yaffs_proc_write(struct file + + yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS; + +- printk("new trace = 0x%08X\n",yaffs_traceMask); ++ printk(KERN_DEBUG "new trace = 0x%08X\n", yaffs_traceMask); + + if (rg & YAFFS_TRACE_ALWAYS) { + for (i = 0; mask_flags[i].mask_name != NULL; i++) { + char flag; + flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-'; +- printk("%c%s\n", flag, mask_flags[i].mask_name); ++ printk(KERN_DEBUG "%c%s\n", flag, mask_flags[i].mask_name); + } + } + +@@ -2211,12 +2448,8 @@ struct file_system_to_install { + }; + + static struct file_system_to_install fs_to_install[] = { +-//#ifdef CONFIG_YAFFS_YAFFS1 + {&yaffs_fs_type, 0}, +-//#endif +-//#ifdef CONFIG_YAFFS_YAFFS2 + {&yaffs2_fs_type, 0}, +-//#endif + {NULL, 0} + }; + +@@ -2231,15 +2464,14 @@ static int __init init_yaffs_fs(void) + /* Install the proc_fs entry */ + my_proc_entry = create_proc_entry("yaffs", + S_IRUGO | S_IFREG, +- &proc_root); ++ YPROC_ROOT); + + if (my_proc_entry) { + my_proc_entry->write_proc = yaffs_proc_write; + my_proc_entry->read_proc = yaffs_proc_read; + my_proc_entry->data = NULL; +- } else { ++ } else + return -ENOMEM; +- } + + /* Now add the file system entries */ + +@@ -2247,9 +2479,8 @@ static int __init init_yaffs_fs(void) + + while (fsinst->fst && !error) { + error = register_filesystem(fsinst->fst); +- if (!error) { ++ if (!error) + fsinst->installed = 1; +- } + fsinst++; + } + +@@ -2277,7 +2508,7 @@ static void __exit exit_yaffs_fs(void) + T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__ + " removing. \n")); + +- remove_proc_entry("yaffs", &proc_root); ++ remove_proc_entry("yaffs", YPROC_ROOT); + + fsinst = fs_to_install; + +@@ -2288,7 +2519,6 @@ static void __exit exit_yaffs_fs(void) + } + fsinst++; + } +- + } + + module_init(init_yaffs_fs) +--- /dev/null ++++ b/fs/yaffs2/yaffs_getblockinfo.h +@@ -0,0 +1,34 @@ ++/* ++ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. ++ * ++ * Copyright (C) 2002-2007 Aleph One Ltd. ++ * for Toby Churchill Ltd and Brightstar Engineering ++ * ++ * Created by Charles Manning <charles@aleph1.co.uk> ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU Lesser General Public License version 2.1 as ++ * published by the Free Software Foundation. ++ * ++ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. ++ */ ++ ++#ifndef __YAFFS_GETBLOCKINFO_H__ ++#define __YAFFS_GETBLOCKINFO_H__ ++ ++#include "yaffs_guts.h" ++ ++/* Function to manipulate block info */ ++static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) ++{ ++ if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR ++ ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), ++ blk)); ++ YBUG(); ++ } ++ return &dev->blockInfo[blk - dev->internalStartBlock]; ++} ++ ++#endif +--- a/fs/yaffs2/yaffs_guts.c ++++ b/fs/yaffs2/yaffs_guts.c +@@ -12,16 +12,17 @@ + */ + + const char *yaffs_guts_c_version = +- "$Id: yaffs_guts.c,v 1.49 2007-05-15 20:07:40 charles Exp $"; ++ "$Id: yaffs_guts.c,v 1.82 2009-03-09 04:24:17 charles Exp $"; + + #include "yportenv.h" + + #include "yaffsinterface.h" + #include "yaffs_guts.h" + #include "yaffs_tagsvalidity.h" ++#include "yaffs_getblockinfo.h" + + #include "yaffs_tagscompat.h" +-#ifndef CONFIG_YAFFS_USE_OWN_SORT ++#ifndef CONFIG_YAFFS_USE_OWN_SORT + #include "yaffs_qsort.h" + #endif + #include "yaffs_nand.h" +@@ -32,116 +33,116 @@ const char *yaffs_guts_c_version = + #include "yaffs_packedtags2.h" + + +-#ifdef CONFIG_YAFFS_WINCE +-void yfsd_LockYAFFS(BOOL fsLockOnly); +-void yfsd_UnlockYAFFS(BOOL fsLockOnly); +-#endif +- + #define YAFFS_PASSIVE_GC_CHUNKS 2 + + #include "yaffs_ecc.h" + + + /* Robustification (if it ever comes about...) */ +-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND); +-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk); +-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * tags); +-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, +- const yaffs_ExtendedTags * tags); ++static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND); ++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, ++ int erasedOk); ++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags); ++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, ++ const yaffs_ExtendedTags *tags); + + /* Other local prototypes */ +-static int yaffs_UnlinkObject( yaffs_Object *obj); ++static int yaffs_UnlinkObject(yaffs_Object *obj); + static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj); + + static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); + +-static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device * dev, +- const __u8 * buffer, +- yaffs_ExtendedTags * tags, +- int useReserve); +-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, +- int chunkInNAND, int inScan); +- +-static yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, +- yaffs_ObjectType type); +-static void yaffs_AddObjectToDirectory(yaffs_Object * directory, +- yaffs_Object * obj); +-static int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, +- int force, int isShrink, int shadows); +-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj); ++static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device *dev, ++ const __u8 *buffer, ++ yaffs_ExtendedTags *tags, ++ int useReserve); ++static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, ++ int chunkInNAND, int inScan); ++ ++static yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, ++ yaffs_ObjectType type); ++static void yaffs_AddObjectToDirectory(yaffs_Object *directory, ++ yaffs_Object *obj); ++static int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, ++ int force, int isShrink, int shadows); ++static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj); + static int yaffs_CheckStructures(void); +-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, +- int chunkOffset, int *limit); +-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in); +- +-static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo); +- +-static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo); +-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, +- int lineNo); ++static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, ++ int chunkOffset, int *limit); ++static int yaffs_DoGenericObjectDeletion(yaffs_Object *in); ++ ++static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device *dev, int blockNo); + +-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, +- int chunkInNAND); + +-static int yaffs_UnlinkWorker(yaffs_Object * obj); +-static void yaffs_DestroyObject(yaffs_Object * obj); ++static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, ++ int chunkInNAND); + +-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, +- int chunkInObject); ++static int yaffs_UnlinkWorker(yaffs_Object *obj); + +-loff_t yaffs_GetFileSize(yaffs_Object * obj); ++static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, ++ int chunkInObject); + +-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr); ++static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, ++ yaffs_BlockInfo **blockUsedPtr); + +-static void yaffs_VerifyFreeChunks(yaffs_Device * dev); ++static void yaffs_VerifyFreeChunks(yaffs_Device *dev); + + static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in); + ++static void yaffs_VerifyDirectory(yaffs_Object *directory); + #ifdef YAFFS_PARANOID +-static int yaffs_CheckFileSanity(yaffs_Object * in); ++static int yaffs_CheckFileSanity(yaffs_Object *in); + #else + #define yaffs_CheckFileSanity(in) + #endif + +-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in); +-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId); ++static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in); ++static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId); + + static void yaffs_InvalidateCheckpoint(yaffs_Device *dev); + +-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, +- yaffs_ExtendedTags * tags); ++static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, ++ yaffs_ExtendedTags *tags); + +-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos); +-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, +- yaffs_FileStructure * fStruct, +- __u32 chunkId); ++static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, ++ unsigned pos); ++static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct, ++ __u32 chunkId); + + + /* Function to calculate chunk and offset */ + +-static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u32 *offset) ++static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, ++ __u32 *offsetOut) + { +- if(dev->chunkShift){ +- /* Easy-peasy power of 2 case */ +- *chunk = (__u32)(addr >> dev->chunkShift); +- *offset = (__u32)(addr & dev->chunkMask); +- } +- else if(dev->crumbsPerChunk) +- { +- /* Case where we're using "crumbs" */ +- *offset = (__u32)(addr & dev->crumbMask); +- addr >>= dev->crumbShift; +- *chunk = ((__u32)addr)/dev->crumbsPerChunk; +- *offset += ((addr - (*chunk * dev->crumbsPerChunk)) << dev->crumbShift); ++ int chunk; ++ __u32 offset; ++ ++ chunk = (__u32)(addr >> dev->chunkShift); ++ ++ if (dev->chunkDiv == 1) { ++ /* easy power of 2 case */ ++ offset = (__u32)(addr & dev->chunkMask); ++ } else { ++ /* Non power-of-2 case */ ++ ++ loff_t chunkBase; ++ ++ chunk /= dev->chunkDiv; ++ ++ chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk; ++ offset = (__u32)(addr - chunkBase); + } +- else +- YBUG(); ++ ++ *chunkOut = chunk; ++ *offsetOut = offset; + } + +-/* Function to return the number of shifts for a power of 2 greater than or equal +- * to the given number ++/* Function to return the number of shifts for a power of 2 greater than or ++ * equal to the given number + * Note we don't try to cater for all possible numbers and this does not have to + * be hellishly efficient. + */ +@@ -153,13 +154,14 @@ static __u32 ShiftsGE(__u32 x) + + nShifts = extraBits = 0; + +- while(x>1){ +- if(x & 1) extraBits++; +- x>>=1; ++ while (x > 1) { ++ if (x & 1) ++ extraBits++; ++ x >>= 1; + nShifts++; + } + +- if(extraBits) ++ if (extraBits) + nShifts++; + + return nShifts; +@@ -168,16 +170,17 @@ static __u32 ShiftsGE(__u32 x) + /* Function to return the number of shifts to get a 1 in bit 0 + */ + +-static __u32 ShiftDiv(__u32 x) ++static __u32 Shifts(__u32 x) + { + int nShifts; + + nShifts = 0; + +- if(!x) return 0; ++ if (!x) ++ return 0; + +- while( !(x&1)){ +- x>>=1; ++ while (!(x&1)) { ++ x >>= 1; + nShifts++; + } + +@@ -195,21 +198,25 @@ static int yaffs_InitialiseTempBuffers(y + int i; + __u8 *buf = (__u8 *)1; + +- memset(dev->tempBuffer,0,sizeof(dev->tempBuffer)); ++ memset(dev->tempBuffer, 0, sizeof(dev->tempBuffer)); + + for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { + dev->tempBuffer[i].line = 0; /* not in use */ + dev->tempBuffer[i].buffer = buf = +- YMALLOC_DMA(dev->nDataBytesPerChunk); ++ YMALLOC_DMA(dev->totalBytesPerChunk); + } + + return buf ? YAFFS_OK : YAFFS_FAIL; +- + } + +-static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) ++__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo) + { + int i, j; ++ ++ dev->tempInUse++; ++ if (dev->tempInUse > dev->maxTemp) ++ dev->maxTemp = dev->tempInUse; ++ + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { + if (dev->tempBuffer[i].line == 0) { + dev->tempBuffer[i].line = lineNo; +@@ -227,9 +234,9 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D + T(YAFFS_TRACE_BUFFERS, + (TSTR("Out of temp buffers at line %d, other held by lines:"), + lineNo)); +- for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { ++ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) + T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line)); +- } ++ + T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR))); + + /* +@@ -242,10 +249,13 @@ static __u8 *yaffs_GetTempBuffer(yaffs_D + + } + +-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, ++void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, + int lineNo) + { + int i; ++ ++ dev->tempInUse--; ++ + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { + if (dev->tempBuffer[i].buffer == buffer) { + dev->tempBuffer[i].line = 0; +@@ -267,27 +277,26 @@ static void yaffs_ReleaseTempBuffer(yaff + /* + * Determine if we have a managed buffer. + */ +-int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer) ++int yaffs_IsManagedTempBuffer(yaffs_Device *dev, const __u8 *buffer) + { + int i; ++ + for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { + if (dev->tempBuffer[i].buffer == buffer) + return 1; ++ } + ++ for (i = 0; i < dev->nShortOpCaches; i++) { ++ if (dev->srCache[i].data == buffer) ++ return 1; + } + +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if( dev->srCache[i].data == buffer ) +- return 1; +- +- } +- +- if (buffer == dev->checkpointBuffer) +- return 1; +- +- T(YAFFS_TRACE_ALWAYS, +- (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); +- return 0; ++ if (buffer == dev->checkpointBuffer) ++ return 1; ++ ++ T(YAFFS_TRACE_ALWAYS, ++ (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); ++ return 0; + } + + +@@ -296,62 +305,63 @@ int yaffs_IsManagedTempBuffer(yaffs_Devi + * Chunk bitmap manipulations + */ + +-static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device * dev, int blk) ++static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device *dev, int blk) + { + if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { + T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), +- blk)); ++ (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), ++ blk)); + YBUG(); + } + return dev->chunkBits + +- (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); ++ (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); + } + + static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk) + { +- if(blk < dev->internalStartBlock || blk > dev->internalEndBlock || +- chunk < 0 || chunk >= dev->nChunksPerBlock) { +- T(YAFFS_TRACE_ERROR, +- (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),blk,chunk)); +- YBUG(); ++ if (blk < dev->internalStartBlock || blk > dev->internalEndBlock || ++ chunk < 0 || chunk >= dev->nChunksPerBlock) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), ++ blk, chunk)); ++ YBUG(); + } + } + +-static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device * dev, int blk) ++static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device *dev, int blk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + + memset(blkBits, 0, dev->chunkBitmapStride); + } + +-static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk) ++static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device *dev, int blk, int chunk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + +- yaffs_VerifyChunkBitId(dev,blk,chunk); ++ yaffs_VerifyChunkBitId(dev, blk, chunk); + + blkBits[chunk / 8] &= ~(1 << (chunk & 7)); + } + +-static Y_INLINE void yaffs_SetChunkBit(yaffs_Device * dev, int blk, int chunk) ++static Y_INLINE void yaffs_SetChunkBit(yaffs_Device *dev, int blk, int chunk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + +- yaffs_VerifyChunkBitId(dev,blk,chunk); ++ yaffs_VerifyChunkBitId(dev, blk, chunk); + + blkBits[chunk / 8] |= (1 << (chunk & 7)); + } + +-static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device * dev, int blk, int chunk) ++static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device *dev, int blk, int chunk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); +- yaffs_VerifyChunkBitId(dev,blk,chunk); ++ yaffs_VerifyChunkBitId(dev, blk, chunk); + + return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; + } + +-static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device * dev, int blk) ++static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device *dev, int blk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + int i; +@@ -363,17 +373,17 @@ static Y_INLINE int yaffs_StillSomeChunk + return 0; + } + +-static int yaffs_CountChunkBits(yaffs_Device * dev, int blk) ++static int yaffs_CountChunkBits(yaffs_Device *dev, int blk) + { + __u8 *blkBits = yaffs_BlockBits(dev, blk); + int i; + int n = 0; + for (i = 0; i < dev->chunkBitmapStride; i++) { + __u8 x = *blkBits; +- while(x){ +- if(x & 1) ++ while (x) { ++ if (x & 1) + n++; +- x >>=1; ++ x >>= 1; + } + + blkBits++; +@@ -400,7 +410,7 @@ static int yaffs_SkipNANDVerification(ya + return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); + } + +-static const char * blockStateName[] = { ++static const char *blockStateName[] = { + "Unknown", + "Needs scanning", + "Scanning", +@@ -413,64 +423,65 @@ static const char * blockStateName[] = { + "Dead" + }; + +-static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) ++static void yaffs_VerifyBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, int n) + { + int actuallyUsed; + int inUse; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + /* Report illegal runtime states */ +- if(bi->blockState <0 || bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState)); ++ if (bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has undefined state %d"TENDSTR), n, bi->blockState)); + +- switch(bi->blockState){ +- case YAFFS_BLOCK_STATE_UNKNOWN: +- case YAFFS_BLOCK_STATE_SCANNING: +- case YAFFS_BLOCK_STATE_NEEDS_SCANNING: +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR), +- n,blockStateName[bi->blockState])); ++ switch (bi->blockState) { ++ case YAFFS_BLOCK_STATE_UNKNOWN: ++ case YAFFS_BLOCK_STATE_SCANNING: ++ case YAFFS_BLOCK_STATE_NEEDS_SCANNING: ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has bad run-state %s"TENDSTR), ++ n, blockStateName[bi->blockState])); + } + + /* Check pages in use and soft deletions are legal */ + + actuallyUsed = bi->pagesInUse - bi->softDeletions; + +- if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || ++ if (bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || + bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock || + actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), +- n,bi->pagesInUse,bi->softDeletions)); ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), ++ n, bi->pagesInUse, bi->softDeletions)); + + + /* Check chunk bitmap legal */ +- inUse = yaffs_CountChunkBits(dev,n); +- if(inUse != bi->pagesInUse) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), +- n,bi->pagesInUse,inUse)); ++ inUse = yaffs_CountChunkBits(dev, n); ++ if (inUse != bi->pagesInUse) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), ++ n, bi->pagesInUse, inUse)); + + /* Check that the sequence number is valid. + * Ten million is legal, but is very unlikely + */ +- if(dev->isYaffs2 && ++ if (dev->isYaffs2 && + (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) && +- (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000 )) +- T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has suspect sequence number of %d"TENDSTR), +- n,bi->sequenceNumber)); +- ++ (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000)) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block %d has suspect sequence number of %d"TENDSTR), ++ n, bi->sequenceNumber)); + } + +-static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) ++static void yaffs_VerifyCollectedBlock(yaffs_Device *dev, yaffs_BlockInfo *bi, ++ int n) + { +- yaffs_VerifyBlock(dev,bi,n); ++ yaffs_VerifyBlock(dev, bi, n); + + /* After collection the block should be in the erased state */ +- /* TODO: This will need to change if we do partial gc */ ++ /* This will need to change if we do partial gc */ + +- if(bi->blockState != YAFFS_BLOCK_STATE_EMPTY){ +- T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), +- n,bi->blockState)); ++ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && ++ bi->blockState != YAFFS_BLOCK_STATE_EMPTY) { ++ T(YAFFS_TRACE_ERROR, (TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), ++ n, bi->blockState)); + } + } + +@@ -480,52 +491,49 @@ static void yaffs_VerifyBlocks(yaffs_Dev + int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; + int nIllegalBlockStates = 0; + +- +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + +- memset(nBlocksPerState,0,sizeof(nBlocksPerState)); +- ++ memset(nBlocksPerState, 0, sizeof(nBlocksPerState)); + +- for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){ +- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); +- yaffs_VerifyBlock(dev,bi,i); ++ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { ++ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, i); ++ yaffs_VerifyBlock(dev, bi, i); + +- if(bi->blockState >=0 && bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) ++ if (bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) + nBlocksPerState[bi->blockState]++; + else + nIllegalBlockStates++; +- + } + +- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); +- T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR("Block summary"TENDSTR))); + +- T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates)); +- if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) +- T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR("%d blocks have illegal states"TENDSTR), nIllegalBlockStates)); ++ if (nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) ++ T(YAFFS_TRACE_VERIFY, (TSTR("Too many allocating blocks"TENDSTR))); + +- for(i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) ++ for (i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) + T(YAFFS_TRACE_VERIFY, + (TSTR("%s %d blocks"TENDSTR), +- blockStateName[i],nBlocksPerState[i])); ++ blockStateName[i], nBlocksPerState[i])); + +- if(dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) ++ if (dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) + T(YAFFS_TRACE_VERIFY, + (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), + dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); + +- if(dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) ++ if (dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) + T(YAFFS_TRACE_VERIFY, + (TSTR("Erased block count wrong dev %d count %d"TENDSTR), + dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); + +- if(nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) ++ if (nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) + T(YAFFS_TRACE_VERIFY, + (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), + nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); + +- T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); ++ T(YAFFS_TRACE_VERIFY, (TSTR(""TENDSTR))); + + } + +@@ -535,26 +543,26 @@ static void yaffs_VerifyBlocks(yaffs_Dev + */ + static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck) + { +- if(yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + +- if(!(tags && obj && oh)){ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), +- (__u32)tags,(__u32)obj,(__u32)oh)); ++ if (!(tags && obj && oh)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), ++ (__u32)tags, (__u32)obj, (__u32)oh)); + return; + } + +- if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || +- oh->type > YAFFS_OBJECT_TYPE_MAX) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), +- tags->objectId, oh->type)); +- +- if(tags->objectId != obj->objectId) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch objectId %d"TENDSTR), +- tags->objectId, obj->objectId)); ++ if (oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || ++ oh->type > YAFFS_OBJECT_TYPE_MAX) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), ++ tags->objectId, oh->type)); ++ ++ if (tags->objectId != obj->objectId) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch objectId %d"TENDSTR), ++ tags->objectId, obj->objectId)); + + + /* +@@ -563,46 +571,43 @@ static void yaffs_VerifyObjectHeader(yaf + * Tests do not apply to the root object. + */ + +- if(parentCheck && tags->objectId > 1 && !obj->parent) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), +- tags->objectId, oh->parentObjectId)); +- +- +- if(parentCheck && obj->parent && +- oh->parentObjectId != obj->parent->objectId && +- (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || +- obj->parent->objectId != YAFFS_OBJECTID_DELETED)) +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), +- tags->objectId, oh->parentObjectId, obj->parent->objectId)); ++ if (parentCheck && tags->objectId > 1 && !obj->parent) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), ++ tags->objectId, oh->parentObjectId)); + ++ if (parentCheck && obj->parent && ++ oh->parentObjectId != obj->parent->objectId && ++ (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || ++ obj->parent->objectId != YAFFS_OBJECTID_DELETED)) ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), ++ tags->objectId, oh->parentObjectId, obj->parent->objectId)); + +- if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */ ++ if (tags->objectId > 1 && oh->name[0] == 0) /* Null name */ + T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header name is NULL"TENDSTR), +- obj->objectId)); ++ (TSTR("Obj %d header name is NULL"TENDSTR), ++ obj->objectId)); + +- if(tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ ++ if (tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ + T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d header name is 0xFF"TENDSTR), +- obj->objectId)); ++ (TSTR("Obj %d header name is 0xFF"TENDSTR), ++ obj->objectId)); + } + + + +-static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn, +- __u32 level, int chunkOffset) ++static int yaffs_VerifyTnodeWorker(yaffs_Object *obj, yaffs_Tnode *tn, ++ __u32 level, int chunkOffset) + { + int i; + yaffs_Device *dev = obj->myDev; + int ok = 1; +- int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + + if (tn) { + if (level > 0) { + +- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { + if (tn->internal[i]) { + ok = yaffs_VerifyTnodeWorker(obj, + tn->internal[i], +@@ -611,20 +616,19 @@ static int yaffs_VerifyTnodeWorker(yaffs + } + } + } else if (level == 0) { +- int i; + yaffs_ExtendedTags tags; + __u32 objectId = obj->objectId; + + chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS; + +- for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){ +- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); ++ for (i = 0; i < YAFFS_NTNODES_LEVEL0; i++) { ++ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); + +- if(theChunk > 0){ ++ if (theChunk > 0) { + /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ +- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); +- if(tags.objectId != objectId || tags.chunkId != chunkOffset){ +- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), ++ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); ++ if (tags.objectId != objectId || tags.chunkId != chunkOffset) { ++ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), + objectId, chunkOffset, theChunk, + tags.objectId, tags.chunkId)); + } +@@ -646,13 +650,15 @@ static void yaffs_VerifyFile(yaffs_Objec + __u32 lastChunk; + __u32 x; + __u32 i; +- int ok; + yaffs_Device *dev; + yaffs_ExtendedTags tags; + yaffs_Tnode *tn; + __u32 objectId; + +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (!obj) ++ return; ++ ++ if (yaffs_SkipVerification(obj->myDev)) + return; + + dev = obj->myDev; +@@ -662,17 +668,17 @@ static void yaffs_VerifyFile(yaffs_Objec + lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; + x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; + requiredTallness = 0; +- while (x> 0) { ++ while (x > 0) { + x >>= YAFFS_TNODES_INTERNAL_BITS; + requiredTallness++; + } + + actualTallness = obj->variant.fileVariant.topLevel; + +- if(requiredTallness > actualTallness ) ++ if (requiredTallness > actualTallness) + T(YAFFS_TRACE_VERIFY, + (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), +- obj->objectId,actualTallness, requiredTallness)); ++ obj->objectId, actualTallness, requiredTallness)); + + + /* Check that the chunks in the tnode tree are all correct. +@@ -680,39 +686,31 @@ static void yaffs_VerifyFile(yaffs_Objec + * checking the tags for every chunk match. + */ + +- if(yaffs_SkipNANDVerification(dev)) ++ if (yaffs_SkipNANDVerification(dev)) + return; + +- for(i = 1; i <= lastChunk; i++){ +- tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i); ++ for (i = 1; i <= lastChunk; i++) { ++ tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant, i); + + if (tn) { +- __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); +- if(theChunk > 0){ ++ __u32 theChunk = yaffs_GetChunkGroupBase(dev, tn, i); ++ if (theChunk > 0) { + /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */ +- yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); +- if(tags.objectId != objectId || tags.chunkId != i){ +- T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), ++ yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, &tags); ++ if (tags.objectId != objectId || tags.chunkId != i) { ++ T(~0, (TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), + objectId, i, theChunk, + tags.objectId, tags.chunkId)); + } + } + } +- + } +- + } + +-static void yaffs_VerifyDirectory(yaffs_Object *obj) +-{ +- if(obj && yaffs_SkipVerification(obj->myDev)) +- return; +- +-} + + static void yaffs_VerifyHardLink(yaffs_Object *obj) + { +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + + /* Verify sane equivalent object */ +@@ -720,7 +718,7 @@ static void yaffs_VerifyHardLink(yaffs_O + + static void yaffs_VerifySymlink(yaffs_Object *obj) + { +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + + /* Verify symlink string */ +@@ -728,7 +726,7 @@ static void yaffs_VerifySymlink(yaffs_Ob + + static void yaffs_VerifySpecial(yaffs_Object *obj) + { +- if(obj && yaffs_SkipVerification(obj->myDev)) ++ if (obj && yaffs_SkipVerification(obj->myDev)) + return; + } + +@@ -740,14 +738,19 @@ static void yaffs_VerifyObject(yaffs_Obj + __u32 chunkMax; + + __u32 chunkIdOk; +- __u32 chunkIsLive; ++ __u32 chunkInRange; ++ __u32 chunkShouldNotBeDeleted; ++ __u32 chunkValid; ++ ++ if (!obj) ++ return; + +- if(!obj) ++ if (obj->beingCreated) + return; + + dev = obj->myDev; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + /* Check sane object header chunk */ +@@ -755,50 +758,54 @@ static void yaffs_VerifyObject(yaffs_Obj + chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; + chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; + +- chunkIdOk = (obj->chunkId >= chunkMin && obj->chunkId <= chunkMax); +- chunkIsLive = chunkIdOk && ++ chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); ++ chunkIdOk = chunkInRange || obj->hdrChunk == 0; ++ chunkValid = chunkInRange && + yaffs_CheckChunkBit(dev, +- obj->chunkId / dev->nChunksPerBlock, +- obj->chunkId % dev->nChunksPerBlock); +- if(!obj->fake && +- (!chunkIdOk || !chunkIsLive)) { +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), +- obj->objectId,obj->chunkId, +- chunkIdOk ? "" : ",out of range", +- chunkIsLive || !chunkIdOk ? "" : ",marked as deleted")); ++ obj->hdrChunk / dev->nChunksPerBlock, ++ obj->hdrChunk % dev->nChunksPerBlock); ++ chunkShouldNotBeDeleted = chunkInRange && !chunkValid; ++ ++ if (!obj->fake && ++ (!chunkIdOk || chunkShouldNotBeDeleted)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), ++ obj->objectId, obj->hdrChunk, ++ chunkIdOk ? "" : ",out of range", ++ chunkShouldNotBeDeleted ? ",marked as deleted" : "")); + } + +- if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) { ++ if (chunkValid && !yaffs_SkipNANDVerification(dev)) { + yaffs_ExtendedTags tags; + yaffs_ObjectHeader *oh; +- __u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__); ++ __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); + + oh = (yaffs_ObjectHeader *)buffer; + +- yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags); ++ yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk, buffer, ++ &tags); + +- yaffs_VerifyObjectHeader(obj,oh,&tags,1); ++ yaffs_VerifyObjectHeader(obj, oh, &tags, 1); + +- yaffs_ReleaseTempBuffer(dev,buffer,__LINE__); ++ yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); + } + + /* Verify it has a parent */ +- if(obj && !obj->fake && +- (!obj->parent || obj->parent->myDev != dev)){ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), +- obj->objectId,obj->parent)); ++ if (obj && !obj->fake && ++ (!obj->parent || obj->parent->myDev != dev)) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), ++ obj->objectId, obj->parent)); + } + + /* Verify parent is a directory */ +- if(obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){ +- T(YAFFS_TRACE_VERIFY, +- (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), +- obj->objectId,obj->parent->variantType)); ++ if (obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_VERIFY, ++ (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), ++ obj->objectId, obj->parent->variantType)); + } + +- switch(obj->variantType){ ++ switch (obj->variantType) { + case YAFFS_OBJECT_TYPE_FILE: + yaffs_VerifyFile(obj); + break; +@@ -818,33 +825,30 @@ static void yaffs_VerifyObject(yaffs_Obj + default: + T(YAFFS_TRACE_VERIFY, + (TSTR("Obj %d has illegaltype %d"TENDSTR), +- obj->objectId,obj->variantType)); ++ obj->objectId, obj->variantType)); + break; + } +- +- + } + + static void yaffs_VerifyObjects(yaffs_Device *dev) + { + yaffs_Object *obj; + int i; +- struct list_head *lh; ++ struct ylist_head *lh; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + /* Iterate through the objects in each hash entry */ + +- for(i = 0; i < YAFFS_NOBJECT_BUCKETS; i++){ +- list_for_each(lh, &dev->objectBucket[i].list) { ++ for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { ++ ylist_for_each(lh, &dev->objectBucket[i].list) { + if (lh) { +- obj = list_entry(lh, yaffs_Object, hashLink); ++ obj = ylist_entry(lh, yaffs_Object, hashLink); + yaffs_VerifyObject(obj); + } + } +- } +- ++ } + } + + +@@ -855,19 +859,20 @@ static void yaffs_VerifyObjects(yaffs_De + static Y_INLINE int yaffs_HashFunction(int n) + { + n = abs(n); +- return (n % YAFFS_NOBJECT_BUCKETS); ++ return n % YAFFS_NOBJECT_BUCKETS; + } + + /* +- * Access functions to useful fake objects ++ * Access functions to useful fake objects. ++ * Note that root might have a presence in NAND if permissions are set. + */ + +-yaffs_Object *yaffs_Root(yaffs_Device * dev) ++yaffs_Object *yaffs_Root(yaffs_Device *dev) + { + return dev->rootDir; + } + +-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev) ++yaffs_Object *yaffs_LostNFound(yaffs_Device *dev) + { + return dev->lostNFoundDir; + } +@@ -877,7 +882,7 @@ yaffs_Object *yaffs_LostNFound(yaffs_Dev + * Erased NAND checking functions + */ + +-int yaffs_CheckFF(__u8 * buffer, int nBytes) ++int yaffs_CheckFF(__u8 *buffer, int nBytes) + { + /* Horrible, slow implementation */ + while (nBytes--) { +@@ -889,9 +894,8 @@ int yaffs_CheckFF(__u8 * buffer, int nBy + } + + static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, +- int chunkInNAND) ++ int chunkInNAND) + { +- + int retval = YAFFS_OK; + __u8 *data = yaffs_GetTempBuffer(dev, __LINE__); + yaffs_ExtendedTags tags; +@@ -899,10 +903,9 @@ static int yaffs_CheckChunkErased(struct + + result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); + +- if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) ++ if (tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) + retval = YAFFS_FAIL; + +- + if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { + T(YAFFS_TRACE_NANDACCESS, + (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND)); +@@ -915,11 +918,10 @@ static int yaffs_CheckChunkErased(struct + + } + +- + static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, +- const __u8 * data, +- yaffs_ExtendedTags * tags, +- int useReserve) ++ const __u8 *data, ++ yaffs_ExtendedTags *tags, ++ int useReserve) + { + int attempts = 0; + int writeOk = 0; +@@ -972,7 +974,7 @@ static int yaffs_WriteNewChunkWithTagsTo + erasedOk = yaffs_CheckChunkErased(dev, chunk); + if (erasedOk != YAFFS_OK) { + T(YAFFS_TRACE_ERROR, +- (TSTR ("**>> yaffs chunk %d was not erased" ++ (TSTR("**>> yaffs chunk %d was not erased" + TENDSTR), chunk)); + + /* try another chunk */ +@@ -992,7 +994,11 @@ static int yaffs_WriteNewChunkWithTagsTo + /* Copy the data into the robustification buffer */ + yaffs_HandleWriteChunkOk(dev, chunk, data, tags); + +- } while (writeOk != YAFFS_OK && attempts < yaffs_wr_attempts); ++ } while (writeOk != YAFFS_OK && ++ (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); ++ ++ if (!writeOk) ++ chunk = -1; + + if (attempts > 1) { + T(YAFFS_TRACE_ERROR, +@@ -1009,13 +1015,35 @@ static int yaffs_WriteNewChunkWithTagsTo + * Block retiring for handling a broken block. + */ + +-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND) ++static void yaffs_RetireBlock(yaffs_Device *dev, int blockInNAND) + { + yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); + + yaffs_InvalidateCheckpoint(dev); + +- yaffs_MarkBlockBad(dev, blockInNAND); ++ if (yaffs_MarkBlockBad(dev, blockInNAND) != YAFFS_OK) { ++ if (yaffs_EraseBlockInNAND(dev, blockInNAND) != YAFFS_OK) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR( ++ "yaffs: Failed to mark bad and erase block %d" ++ TENDSTR), blockInNAND)); ++ } else { ++ yaffs_ExtendedTags tags; ++ int chunkId = blockInNAND * dev->nChunksPerBlock; ++ ++ __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); ++ ++ memset(buffer, 0xff, dev->nDataBytesPerChunk); ++ yaffs_InitialiseTags(&tags); ++ tags.sequenceNumber = YAFFS_SEQUENCE_BAD_BLOCK; ++ if (dev->writeChunkWithTagsToNAND(dev, chunkId - ++ dev->chunkOffset, buffer, &tags) != YAFFS_OK) ++ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Failed to " ++ TCONT("write bad block marker to block %d") ++ TENDSTR), blockInNAND)); ++ ++ yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); ++ } ++ } + + bi->blockState = YAFFS_BLOCK_STATE_DEAD; + bi->gcPrioritise = 0; +@@ -1029,49 +1057,45 @@ static void yaffs_RetireBlock(yaffs_Devi + * + */ + +-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * tags) ++static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags) + { + } + +-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, +- const yaffs_ExtendedTags * tags) ++static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND, ++ const yaffs_ExtendedTags *tags) + { + } + + void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) + { +- if(!bi->gcPrioritise){ ++ if (!bi->gcPrioritise) { + bi->gcPrioritise = 1; + dev->hasPendingPrioritisedGCs = 1; +- bi->chunkErrorStrikes ++; ++ bi->chunkErrorStrikes++; + +- if(bi->chunkErrorStrikes > 3){ ++ if (bi->chunkErrorStrikes > 3) { + bi->needsRetiring = 1; /* Too many stikes, so retire this */ + T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); + + } +- + } + } + +-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk) ++static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND, ++ int erasedOk) + { +- + int blockInNAND = chunkInNAND / dev->nChunksPerBlock; + yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); + +- yaffs_HandleChunkError(dev,bi); ++ yaffs_HandleChunkError(dev, bi); + +- +- if(erasedOk ) { ++ if (erasedOk) { + /* Was an actual write failure, so mark the block for retirement */ + bi->needsRetiring = 1; + T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, + (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND)); +- +- + } + + /* Delete the chunk */ +@@ -1081,12 +1105,12 @@ static void yaffs_HandleWriteChunkError( + + /*---------------- Name handling functions ------------*/ + +-static __u16 yaffs_CalcNameSum(const YCHAR * name) ++static __u16 yaffs_CalcNameSum(const YCHAR *name) + { + __u16 sum = 0; + __u16 i = 1; + +- YUCHAR *bname = (YUCHAR *) name; ++ const YUCHAR *bname = (const YUCHAR *) name; + if (bname) { + while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { + +@@ -1102,14 +1126,14 @@ static __u16 yaffs_CalcNameSum(const YCH + return sum; + } + +-static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name) ++static void yaffs_SetObjectName(yaffs_Object *obj, const YCHAR *name) + { + #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM +- if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) { ++ memset(obj->shortName, 0, sizeof(YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1)); ++ if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) + yaffs_strcpy(obj->shortName, name); +- } else { ++ else + obj->shortName[0] = _Y('\0'); +- } + #endif + obj->sum = yaffs_CalcNameSum(name); + } +@@ -1126,7 +1150,7 @@ static void yaffs_SetObjectName(yaffs_Ob + * Don't use this function directly + */ + +-static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) ++static int yaffs_CreateTnodes(yaffs_Device *dev, int nTnodes) + { + int i; + int tnodeSize; +@@ -1143,6 +1167,9 @@ static int yaffs_CreateTnodes(yaffs_Devi + * Must be a multiple of 32-bits */ + tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ + /* make these things */ + + newTnodes = YMALLOC(nTnodes * tnodeSize); +@@ -1150,7 +1177,7 @@ static int yaffs_CreateTnodes(yaffs_Devi + + if (!newTnodes) { + T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); ++ (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); + return YAFFS_FAIL; + } + +@@ -1170,7 +1197,7 @@ static int yaffs_CreateTnodes(yaffs_Devi + dev->freeTnodes = newTnodes; + #else + /* New hookup for wide tnodes */ +- for(i = 0; i < nTnodes -1; i++) { ++ for (i = 0; i < nTnodes - 1; i++) { + curr = (yaffs_Tnode *) &mem[i * tnodeSize]; + next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; + curr->internal[0] = next; +@@ -1197,7 +1224,6 @@ static int yaffs_CreateTnodes(yaffs_Devi + (TSTR + ("yaffs: Could not add tnodes to management list" TENDSTR))); + return YAFFS_FAIL; +- + } else { + tnl->tnodes = newTnodes; + tnl->next = dev->allocatedTnodeList; +@@ -1211,14 +1237,13 @@ static int yaffs_CreateTnodes(yaffs_Devi + + /* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */ + +-static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev) ++static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device *dev) + { + yaffs_Tnode *tn = NULL; + + /* If there are none left make more */ +- if (!dev->freeTnodes) { ++ if (!dev->freeTnodes) + yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES); +- } + + if (dev->freeTnodes) { + tn = dev->freeTnodes; +@@ -1233,21 +1258,27 @@ static yaffs_Tnode *yaffs_GetTnodeRaw(ya + dev->nFreeTnodes--; + } + ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ ++ + return tn; + } + +-static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev) ++static yaffs_Tnode *yaffs_GetTnode(yaffs_Device *dev) + { + yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); ++ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + +- if(tn) +- memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ ++ if (tn) ++ memset(tn, 0, tnodeSize); + + return tn; + } + + /* FreeTnode frees up a tnode and puts it back on the free list */ +-static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn) ++static void yaffs_FreeTnode(yaffs_Device *dev, yaffs_Tnode *tn) + { + if (tn) { + #ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG +@@ -1262,9 +1293,10 @@ static void yaffs_FreeTnode(yaffs_Device + dev->freeTnodes = tn; + dev->nFreeTnodes++; + } ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ + } + +-static void yaffs_DeinitialiseTnodes(yaffs_Device * dev) ++static void yaffs_DeinitialiseTnodes(yaffs_Device *dev) + { + /* Free the list of allocated tnodes */ + yaffs_TnodeList *tmp; +@@ -1282,71 +1314,72 @@ static void yaffs_DeinitialiseTnodes(yaf + dev->nFreeTnodes = 0; + } + +-static void yaffs_InitialiseTnodes(yaffs_Device * dev) ++static void yaffs_InitialiseTnodes(yaffs_Device *dev) + { + dev->allocatedTnodeList = NULL; + dev->freeTnodes = NULL; + dev->nFreeTnodes = 0; + dev->nTnodesCreated = 0; +- + } + + +-void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsigned val) ++void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, ++ unsigned val) + { +- __u32 *map = (__u32 *)tn; +- __u32 bitInMap; +- __u32 bitInWord; +- __u32 wordInMap; +- __u32 mask; ++ __u32 *map = (__u32 *)tn; ++ __u32 bitInMap; ++ __u32 bitInWord; ++ __u32 wordInMap; ++ __u32 mask; + +- pos &= YAFFS_TNODES_LEVEL0_MASK; +- val >>= dev->chunkGroupBits; ++ pos &= YAFFS_TNODES_LEVEL0_MASK; ++ val >>= dev->chunkGroupBits; + +- bitInMap = pos * dev->tnodeWidth; +- wordInMap = bitInMap /32; +- bitInWord = bitInMap & (32 -1); ++ bitInMap = pos * dev->tnodeWidth; ++ wordInMap = bitInMap / 32; ++ bitInWord = bitInMap & (32 - 1); + +- mask = dev->tnodeMask << bitInWord; ++ mask = dev->tnodeMask << bitInWord; + +- map[wordInMap] &= ~mask; +- map[wordInMap] |= (mask & (val << bitInWord)); ++ map[wordInMap] &= ~mask; ++ map[wordInMap] |= (mask & (val << bitInWord)); + +- if(dev->tnodeWidth > (32-bitInWord)) { +- bitInWord = (32 - bitInWord); +- wordInMap++;; +- mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); +- map[wordInMap] &= ~mask; +- map[wordInMap] |= (mask & (val >> bitInWord)); +- } ++ if (dev->tnodeWidth > (32 - bitInWord)) { ++ bitInWord = (32 - bitInWord); ++ wordInMap++;; ++ mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); ++ map[wordInMap] &= ~mask; ++ map[wordInMap] |= (mask & (val >> bitInWord)); ++ } + } + +-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos) ++static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, ++ unsigned pos) + { +- __u32 *map = (__u32 *)tn; +- __u32 bitInMap; +- __u32 bitInWord; +- __u32 wordInMap; +- __u32 val; ++ __u32 *map = (__u32 *)tn; ++ __u32 bitInMap; ++ __u32 bitInWord; ++ __u32 wordInMap; ++ __u32 val; + +- pos &= YAFFS_TNODES_LEVEL0_MASK; ++ pos &= YAFFS_TNODES_LEVEL0_MASK; + +- bitInMap = pos * dev->tnodeWidth; +- wordInMap = bitInMap /32; +- bitInWord = bitInMap & (32 -1); ++ bitInMap = pos * dev->tnodeWidth; ++ wordInMap = bitInMap / 32; ++ bitInWord = bitInMap & (32 - 1); + +- val = map[wordInMap] >> bitInWord; ++ val = map[wordInMap] >> bitInWord; + +- if(dev->tnodeWidth > (32-bitInWord)) { +- bitInWord = (32 - bitInWord); +- wordInMap++;; +- val |= (map[wordInMap] << bitInWord); +- } ++ if (dev->tnodeWidth > (32 - bitInWord)) { ++ bitInWord = (32 - bitInWord); ++ wordInMap++;; ++ val |= (map[wordInMap] << bitInWord); ++ } + +- val &= dev->tnodeMask; +- val <<= dev->chunkGroupBits; ++ val &= dev->tnodeMask; ++ val <<= dev->chunkGroupBits; + +- return val; ++ return val; + } + + /* ------------------- End of individual tnode manipulation -----------------*/ +@@ -1357,24 +1390,21 @@ static __u32 yaffs_GetChunkGroupBase(yaf + */ + + /* FindLevel0Tnode finds the level 0 tnode, if one exists. */ +-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, +- yaffs_FileStructure * fStruct, +- __u32 chunkId) ++static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct, ++ __u32 chunkId) + { +- + yaffs_Tnode *tn = fStruct->top; + __u32 i; + int requiredTallness; + int level = fStruct->topLevel; + + /* Check sane level and chunk Id */ +- if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) { ++ if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) + return NULL; +- } + +- if (chunkId > YAFFS_MAX_CHUNK_ID) { ++ if (chunkId > YAFFS_MAX_CHUNK_ID) + return NULL; +- } + + /* First check we're tall enough (ie enough topLevel) */ + +@@ -1385,22 +1415,17 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod + requiredTallness++; + } + +- if (requiredTallness > fStruct->topLevel) { +- /* Not tall enough, so we can't find it, return NULL. */ +- return NULL; +- } ++ if (requiredTallness > fStruct->topLevel) ++ return NULL; /* Not tall enough, so we can't find it */ + + /* Traverse down to level 0 */ + while (level > 0 && tn) { +- tn = tn-> +- internal[(chunkId >> +- ( YAFFS_TNODES_LEVEL0_BITS + +- (level - 1) * +- YAFFS_TNODES_INTERNAL_BITS) +- ) & +- YAFFS_TNODES_INTERNAL_MASK]; ++ tn = tn->internal[(chunkId >> ++ (YAFFS_TNODES_LEVEL0_BITS + ++ (level - 1) * ++ YAFFS_TNODES_INTERNAL_BITS)) & ++ YAFFS_TNODES_INTERNAL_MASK]; + level--; +- + } + + return tn; +@@ -1417,12 +1442,11 @@ static yaffs_Tnode *yaffs_FindLevel0Tnod + * be plugged into the ttree. + */ + +-static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, +- yaffs_FileStructure * fStruct, +- __u32 chunkId, +- yaffs_Tnode *passedTn) ++static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct, ++ __u32 chunkId, ++ yaffs_Tnode *passedTn) + { +- + int requiredTallness; + int i; + int l; +@@ -1432,13 +1456,11 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + + + /* Check sane level and page Id */ +- if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) { ++ if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) + return NULL; +- } + +- if (chunkId > YAFFS_MAX_CHUNK_ID) { ++ if (chunkId > YAFFS_MAX_CHUNK_ID) + return NULL; +- } + + /* First check we're tall enough (ie enough topLevel) */ + +@@ -1451,7 +1473,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + + + if (requiredTallness > fStruct->topLevel) { +- /* Not tall enough,gotta make the tree taller */ ++ /* Not tall enough, gotta make the tree taller */ + for (i = fStruct->topLevel; i < requiredTallness; i++) { + + tn = yaffs_GetTnode(dev); +@@ -1473,27 +1495,27 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + l = fStruct->topLevel; + tn = fStruct->top; + +- if(l > 0) { ++ if (l > 0) { + while (l > 0 && tn) { + x = (chunkId >> +- ( YAFFS_TNODES_LEVEL0_BITS + ++ (YAFFS_TNODES_LEVEL0_BITS + + (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & + YAFFS_TNODES_INTERNAL_MASK; + + +- if((l>1) && !tn->internal[x]){ ++ if ((l > 1) && !tn->internal[x]) { + /* Add missing non-level-zero tnode */ + tn->internal[x] = yaffs_GetTnode(dev); + +- } else if(l == 1) { ++ } else if (l == 1) { + /* Looking from level 1 at level 0 */ +- if (passedTn) { ++ if (passedTn) { + /* If we already have one, then release it.*/ +- if(tn->internal[x]) +- yaffs_FreeTnode(dev,tn->internal[x]); ++ if (tn->internal[x]) ++ yaffs_FreeTnode(dev, tn->internal[x]); + tn->internal[x] = passedTn; + +- } else if(!tn->internal[x]) { ++ } else if (!tn->internal[x]) { + /* Don't have one, none passed in */ + tn->internal[x] = yaffs_GetTnode(dev); + } +@@ -1504,31 +1526,29 @@ static yaffs_Tnode *yaffs_AddOrFindLevel + } + } else { + /* top is level 0 */ +- if(passedTn) { +- memcpy(tn,passedTn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); +- yaffs_FreeTnode(dev,passedTn); ++ if (passedTn) { ++ memcpy(tn, passedTn, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); ++ yaffs_FreeTnode(dev, passedTn); + } + } + + return tn; + } + +-static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk, +- yaffs_ExtendedTags * tags, int objectId, +- int chunkInInode) ++static int yaffs_FindChunkInGroup(yaffs_Device *dev, int theChunk, ++ yaffs_ExtendedTags *tags, int objectId, ++ int chunkInInode) + { + int j; + + for (j = 0; theChunk && j < dev->chunkGroupSize; j++) { +- if (yaffs_CheckChunkBit +- (dev, theChunk / dev->nChunksPerBlock, +- theChunk % dev->nChunksPerBlock)) { ++ if (yaffs_CheckChunkBit(dev, theChunk / dev->nChunksPerBlock, ++ theChunk % dev->nChunksPerBlock)) { + yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, + tags); + if (yaffs_TagsMatch(tags, objectId, chunkInInode)) { + /* found it; */ + return theChunk; +- + } + } + theChunk++; +@@ -1543,7 +1563,7 @@ static int yaffs_FindChunkInGroup(yaffs_ + * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. + */ + +-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, ++static int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, + int chunkOffset, int *limit) + { + int i; +@@ -1557,7 +1577,6 @@ static int yaffs_DeleteWorker(yaffs_Obje + + if (tn) { + if (level > 0) { +- + for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; + i--) { + if (tn->internal[i]) { +@@ -1565,17 +1584,17 @@ static int yaffs_DeleteWorker(yaffs_Obje + allDone = 0; + } else { + allDone = +- yaffs_DeleteWorker(in, +- tn-> +- internal +- [i], +- level - +- 1, +- (chunkOffset ++ yaffs_DeleteWorker(in, ++ tn-> ++ internal ++ [i], ++ level - ++ 1, ++ (chunkOffset + << + YAFFS_TNODES_INTERNAL_BITS) +- + i, +- limit); ++ + i, ++ limit); + } + if (allDone) { + yaffs_FreeTnode(dev, +@@ -1584,27 +1603,25 @@ static int yaffs_DeleteWorker(yaffs_Obje + tn->internal[i] = NULL; + } + } +- + } + return (allDone) ? 1 : 0; + } else if (level == 0) { + int hitLimit = 0; + + for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; +- i--) { +- theChunk = yaffs_GetChunkGroupBase(dev,tn,i); ++ i--) { ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, i); + if (theChunk) { + +- chunkInInode = +- (chunkOffset << +- YAFFS_TNODES_LEVEL0_BITS) + i; ++ chunkInInode = (chunkOffset << ++ YAFFS_TNODES_LEVEL0_BITS) + i; + + foundChunk = +- yaffs_FindChunkInGroup(dev, +- theChunk, +- &tags, +- in->objectId, +- chunkInInode); ++ yaffs_FindChunkInGroup(dev, ++ theChunk, ++ &tags, ++ in->objectId, ++ chunkInInode); + + if (foundChunk > 0) { + yaffs_DeleteChunk(dev, +@@ -1613,14 +1630,13 @@ static int yaffs_DeleteWorker(yaffs_Obje + in->nDataChunks--; + if (limit) { + *limit = *limit - 1; +- if (*limit <= 0) { ++ if (*limit <= 0) + hitLimit = 1; +- } + } + + } + +- yaffs_PutLevel0Tnode(dev,tn,i,0); ++ yaffs_PutLevel0Tnode(dev, tn, i, 0); + } + + } +@@ -1634,9 +1650,8 @@ static int yaffs_DeleteWorker(yaffs_Obje + + } + +-static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk) ++static void yaffs_SoftDeleteChunk(yaffs_Device *dev, int chunk) + { +- + yaffs_BlockInfo *theBlock; + + T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); +@@ -1654,7 +1669,7 @@ static void yaffs_SoftDeleteChunk(yaffs_ + * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. + */ + +-static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, ++static int yaffs_SoftDeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, + __u32 level, int chunkOffset) + { + int i; +@@ -1691,14 +1706,14 @@ static int yaffs_SoftDeleteWorker(yaffs_ + } else if (level == 0) { + + for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { +- theChunk = yaffs_GetChunkGroupBase(dev,tn,i); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, i); + if (theChunk) { + /* Note this does not find the real chunk, only the chunk group. + * We make an assumption that a chunk group is not larger than + * a block. + */ + yaffs_SoftDeleteChunk(dev, theChunk); +- yaffs_PutLevel0Tnode(dev,tn,i,0); ++ yaffs_PutLevel0Tnode(dev, tn, i, 0); + } + + } +@@ -1712,7 +1727,7 @@ static int yaffs_SoftDeleteWorker(yaffs_ + + } + +-static void yaffs_SoftDeleteFile(yaffs_Object * obj) ++static void yaffs_SoftDeleteFile(yaffs_Object *obj) + { + if (obj->deleted && + obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) { +@@ -1746,8 +1761,8 @@ static void yaffs_SoftDeleteFile(yaffs_O + * by a special case. + */ + +-static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device * dev, yaffs_Tnode * tn, +- __u32 level, int del0) ++static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device *dev, yaffs_Tnode *tn, ++ __u32 level, int del0) + { + int i; + int hasData; +@@ -1763,9 +1778,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya + (i == 0) ? del0 : 1); + } + +- if (tn->internal[i]) { ++ if (tn->internal[i]) + hasData++; +- } + } + + if (hasData == 0 && del0) { +@@ -1781,8 +1795,8 @@ static yaffs_Tnode *yaffs_PruneWorker(ya + + } + +-static int yaffs_PruneFileStructure(yaffs_Device * dev, +- yaffs_FileStructure * fStruct) ++static int yaffs_PruneFileStructure(yaffs_Device *dev, ++ yaffs_FileStructure *fStruct) + { + int i; + int hasData; +@@ -1805,9 +1819,8 @@ static int yaffs_PruneFileStructure(yaff + + hasData = 0; + for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { +- if (tn->internal[i]) { ++ if (tn->internal[i]) + hasData++; +- } + } + + if (!hasData) { +@@ -1828,7 +1841,7 @@ static int yaffs_PruneFileStructure(yaff + /* yaffs_CreateFreeObjects creates a bunch more objects and + * adds them to the object free list. + */ +-static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects) ++static int yaffs_CreateFreeObjects(yaffs_Device *dev, int nObjects) + { + int i; + yaffs_Object *newObjects; +@@ -1842,9 +1855,9 @@ static int yaffs_CreateFreeObjects(yaffs + list = YMALLOC(sizeof(yaffs_ObjectList)); + + if (!newObjects || !list) { +- if(newObjects) ++ if (newObjects) + YFREE(newObjects); +- if(list) ++ if (list) + YFREE(list); + T(YAFFS_TRACE_ALLOCATE, + (TSTR("yaffs: Could not allocate more objects" TENDSTR))); +@@ -1854,7 +1867,7 @@ static int yaffs_CreateFreeObjects(yaffs + /* Hook them into the free list */ + for (i = 0; i < nObjects - 1; i++) { + newObjects[i].siblings.next = +- (struct list_head *)(&newObjects[i + 1]); ++ (struct ylist_head *)(&newObjects[i + 1]); + } + + newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; +@@ -1873,85 +1886,109 @@ static int yaffs_CreateFreeObjects(yaffs + + + /* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ +-static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) ++static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device *dev) + { + yaffs_Object *tn = NULL; + ++#ifdef VALGRIND_TEST ++ tn = YMALLOC(sizeof(yaffs_Object)); ++#else + /* If there are none left make more */ +- if (!dev->freeObjects) { ++ if (!dev->freeObjects) + yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS); +- } + + if (dev->freeObjects) { + tn = dev->freeObjects; + dev->freeObjects = +- (yaffs_Object *) (dev->freeObjects->siblings.next); ++ (yaffs_Object *) (dev->freeObjects->siblings.next); + dev->nFreeObjects--; +- ++ } ++#endif ++ if (tn) { + /* Now sweeten it up... */ + + memset(tn, 0, sizeof(yaffs_Object)); ++ tn->beingCreated = 1; ++ + tn->myDev = dev; +- tn->chunkId = -1; ++ tn->hdrChunk = 0; + tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; +- INIT_LIST_HEAD(&(tn->hardLinks)); +- INIT_LIST_HEAD(&(tn->hashLink)); +- INIT_LIST_HEAD(&tn->siblings); ++ YINIT_LIST_HEAD(&(tn->hardLinks)); ++ YINIT_LIST_HEAD(&(tn->hashLink)); ++ YINIT_LIST_HEAD(&tn->siblings); ++ ++ ++ /* Now make the directory sane */ ++ if (dev->rootDir) { ++ tn->parent = dev->rootDir; ++ ylist_add(&(tn->siblings), &dev->rootDir->variant.directoryVariant.children); ++ } + + /* Add it to the lost and found directory. + * NB Can't put root or lostNFound in lostNFound so + * check if lostNFound exists first + */ +- if (dev->lostNFoundDir) { ++ if (dev->lostNFoundDir) + yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); +- } ++ ++ tn->beingCreated = 0; + } + ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ ++ + return tn; + } + +-static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device * dev, int number, ++static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device *dev, int number, + __u32 mode) + { + + yaffs_Object *obj = + yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); + if (obj) { +- obj->fake = 1; /* it is fake so it has no NAND presence... */ ++ obj->fake = 1; /* it is fake so it might have no NAND presence... */ + obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */ + obj->unlinkAllowed = 0; /* ... or unlink it */ + obj->deleted = 0; + obj->unlinked = 0; + obj->yst_mode = mode; + obj->myDev = dev; +- obj->chunkId = 0; /* Not a valid chunk. */ ++ obj->hdrChunk = 0; /* Not a valid chunk. */ + } + + return obj; + + } + +-static void yaffs_UnhashObject(yaffs_Object * tn) ++static void yaffs_UnhashObject(yaffs_Object *tn) + { + int bucket; + yaffs_Device *dev = tn->myDev; + + /* If it is still linked into the bucket list, free from the list */ +- if (!list_empty(&tn->hashLink)) { +- list_del_init(&tn->hashLink); ++ if (!ylist_empty(&tn->hashLink)) { ++ ylist_del_init(&tn->hashLink); + bucket = yaffs_HashFunction(tn->objectId); + dev->objectBucket[bucket].count--; + } +- + } + + /* FreeObject frees up a Object and puts it back on the free list */ +-static void yaffs_FreeObject(yaffs_Object * tn) ++static void yaffs_FreeObject(yaffs_Object *tn) + { +- + yaffs_Device *dev = tn->myDev; + +-#ifdef __KERNEL__ ++#ifdef __KERNEL__ ++ T(YAFFS_TRACE_OS, (TSTR("FreeObject %p inode %p"TENDSTR), tn, tn->myInode)); ++#endif ++ ++ if (tn->parent) ++ YBUG(); ++ if (!ylist_empty(&tn->siblings)) ++ YBUG(); ++ ++ ++#ifdef __KERNEL__ + if (tn->myInode) { + /* We're still hooked up to a cached inode. + * Don't delete now, but mark for later deletion +@@ -1963,24 +2000,28 @@ static void yaffs_FreeObject(yaffs_Objec + + yaffs_UnhashObject(tn); + ++#ifdef VALGRIND_TEST ++ YFREE(tn); ++#else + /* Link into the free list. */ +- tn->siblings.next = (struct list_head *)(dev->freeObjects); ++ tn->siblings.next = (struct ylist_head *)(dev->freeObjects); + dev->freeObjects = tn; + dev->nFreeObjects++; ++#endif ++ dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ + } + + #ifdef __KERNEL__ + +-void yaffs_HandleDeferedFree(yaffs_Object * obj) ++void yaffs_HandleDeferedFree(yaffs_Object *obj) + { +- if (obj->deferedFree) { ++ if (obj->deferedFree) + yaffs_FreeObject(obj); +- } + } + + #endif + +-static void yaffs_DeinitialiseObjects(yaffs_Device * dev) ++static void yaffs_DeinitialiseObjects(yaffs_Device *dev) + { + /* Free the list of allocated Objects */ + +@@ -1998,7 +2039,7 @@ static void yaffs_DeinitialiseObjects(ya + dev->nFreeObjects = 0; + } + +-static void yaffs_InitialiseObjects(yaffs_Device * dev) ++static void yaffs_InitialiseObjects(yaffs_Device *dev) + { + int i; + +@@ -2007,15 +2048,14 @@ static void yaffs_InitialiseObjects(yaff + dev->nFreeObjects = 0; + + for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { +- INIT_LIST_HEAD(&dev->objectBucket[i].list); ++ YINIT_LIST_HEAD(&dev->objectBucket[i].list); + dev->objectBucket[i].count = 0; + } +- + } + +-static int yaffs_FindNiceObjectBucket(yaffs_Device * dev) ++static int yaffs_FindNiceObjectBucket(yaffs_Device *dev) + { +- static int x = 0; ++ static int x; + int i; + int l = 999; + int lowest = 999999; +@@ -2049,7 +2089,7 @@ static int yaffs_FindNiceObjectBucket(ya + return l; + } + +-static int yaffs_CreateNewObjectNumber(yaffs_Device * dev) ++static int yaffs_CreateNewObjectNumber(yaffs_Device *dev) + { + int bucket = yaffs_FindNiceObjectBucket(dev); + +@@ -2058,7 +2098,7 @@ static int yaffs_CreateNewObjectNumber(y + */ + + int found = 0; +- struct list_head *i; ++ struct ylist_head *i; + + __u32 n = (__u32) bucket; + +@@ -2068,41 +2108,38 @@ static int yaffs_CreateNewObjectNumber(y + found = 1; + n += YAFFS_NOBJECT_BUCKETS; + if (1 || dev->objectBucket[bucket].count > 0) { +- list_for_each(i, &dev->objectBucket[bucket].list) { ++ ylist_for_each(i, &dev->objectBucket[bucket].list) { + /* If there is already one in the list */ +- if (i +- && list_entry(i, yaffs_Object, +- hashLink)->objectId == n) { ++ if (i && ylist_entry(i, yaffs_Object, ++ hashLink)->objectId == n) { + found = 0; + } + } + } + } + +- + return n; + } + +-static void yaffs_HashObject(yaffs_Object * in) ++static void yaffs_HashObject(yaffs_Object *in) + { + int bucket = yaffs_HashFunction(in->objectId); + yaffs_Device *dev = in->myDev; + +- list_add(&in->hashLink, &dev->objectBucket[bucket].list); ++ ylist_add(&in->hashLink, &dev->objectBucket[bucket].list); + dev->objectBucket[bucket].count++; +- + } + +-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number) ++yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number) + { + int bucket = yaffs_HashFunction(number); +- struct list_head *i; ++ struct ylist_head *i; + yaffs_Object *in; + +- list_for_each(i, &dev->objectBucket[bucket].list) { ++ ylist_for_each(i, &dev->objectBucket[bucket].list) { + /* Look if it is in the list */ + if (i) { +- in = list_entry(i, yaffs_Object, hashLink); ++ in = ylist_entry(i, yaffs_Object, hashLink); + if (in->objectId == number) { + #ifdef __KERNEL__ + /* Don't tell the VFS about this one if it is defered free */ +@@ -2118,31 +2155,27 @@ yaffs_Object *yaffs_FindObjectByNumber(y + return NULL; + } + +-yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, ++yaffs_Object *yaffs_CreateNewObject(yaffs_Device *dev, int number, + yaffs_ObjectType type) + { +- + yaffs_Object *theObject; +- yaffs_Tnode *tn; ++ yaffs_Tnode *tn = NULL; + +- if (number < 0) { ++ if (number < 0) + number = yaffs_CreateNewObjectNumber(dev); +- } + + theObject = yaffs_AllocateEmptyObject(dev); +- if(!theObject) ++ if (!theObject) + return NULL; + +- if(type == YAFFS_OBJECT_TYPE_FILE){ ++ if (type == YAFFS_OBJECT_TYPE_FILE) { + tn = yaffs_GetTnode(dev); +- if(!tn){ ++ if (!tn) { + yaffs_FreeObject(theObject); + return NULL; + } + } + +- +- + if (theObject) { + theObject->fake = 0; + theObject->renameAllowed = 1; +@@ -2171,8 +2204,8 @@ yaffs_Object *yaffs_CreateNewObject(yaff + theObject->variant.fileVariant.top = tn; + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +- INIT_LIST_HEAD(&theObject->variant.directoryVariant. +- children); ++ YINIT_LIST_HEAD(&theObject->variant.directoryVariant. ++ children); + break; + case YAFFS_OBJECT_TYPE_SYMLINK: + case YAFFS_OBJECT_TYPE_HARDLINK: +@@ -2188,32 +2221,30 @@ yaffs_Object *yaffs_CreateNewObject(yaff + return theObject; + } + +-static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev, ++static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device *dev, + int number, + yaffs_ObjectType type) + { + yaffs_Object *theObject = NULL; + +- if (number > 0) { ++ if (number > 0) + theObject = yaffs_FindObjectByNumber(dev, number); +- } + +- if (!theObject) { ++ if (!theObject) + theObject = yaffs_CreateNewObject(dev, number, type); +- } + + return theObject; + + } + + +-static YCHAR *yaffs_CloneString(const YCHAR * str) ++static YCHAR *yaffs_CloneString(const YCHAR *str) + { + YCHAR *newStr = NULL; + + if (str && *str) { + newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR)); +- if(newStr) ++ if (newStr) + yaffs_strcpy(newStr, str); + } + +@@ -2229,29 +2260,31 @@ static YCHAR *yaffs_CloneString(const YC + */ + + static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, +- yaffs_Object * parent, +- const YCHAR * name, ++ yaffs_Object *parent, ++ const YCHAR *name, + __u32 mode, + __u32 uid, + __u32 gid, +- yaffs_Object * equivalentObject, +- const YCHAR * aliasString, __u32 rdev) ++ yaffs_Object *equivalentObject, ++ const YCHAR *aliasString, __u32 rdev) + { + yaffs_Object *in; +- YCHAR *str; ++ YCHAR *str = NULL; + + yaffs_Device *dev = parent->myDev; + + /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ +- if (yaffs_FindObjectByName(parent, name)) { ++ if (yaffs_FindObjectByName(parent, name)) + return NULL; +- } + + in = yaffs_CreateNewObject(dev, -1, type); + +- if(type == YAFFS_OBJECT_TYPE_SYMLINK){ ++ if (!in) ++ return YAFFS_FAIL; ++ ++ if (type == YAFFS_OBJECT_TYPE_SYMLINK) { + str = yaffs_CloneString(aliasString); +- if(!str){ ++ if (!str) { + yaffs_FreeObject(in); + return NULL; + } +@@ -2260,7 +2293,7 @@ static yaffs_Object *yaffs_MknodObject(y + + + if (in) { +- in->chunkId = -1; ++ in->hdrChunk = 0; + in->valid = 1; + in->variantType = type; + +@@ -2293,10 +2326,10 @@ static yaffs_Object *yaffs_MknodObject(y + break; + case YAFFS_OBJECT_TYPE_HARDLINK: + in->variant.hardLinkVariant.equivalentObject = +- equivalentObject; ++ equivalentObject; + in->variant.hardLinkVariant.equivalentObjectId = +- equivalentObject->objectId; +- list_add(&in->hardLinks, &equivalentObject->hardLinks); ++ equivalentObject->objectId; ++ ylist_add(&in->hardLinks, &equivalentObject->hardLinks); + break; + case YAFFS_OBJECT_TYPE_FILE: + case YAFFS_OBJECT_TYPE_DIRECTORY: +@@ -2308,7 +2341,7 @@ static yaffs_Object *yaffs_MknodObject(y + + if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) { + /* Could not create the object header, fail the creation */ +- yaffs_DestroyObject(in); ++ yaffs_DeleteObject(in); + in = NULL; + } + +@@ -2317,38 +2350,38 @@ static yaffs_Object *yaffs_MknodObject(y + return in; + } + +-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid) ++yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, +- uid, gid, NULL, NULL, 0); ++ uid, gid, NULL, NULL, 0); + } + +-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid) ++yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, + mode, uid, gid, NULL, NULL, 0); + } + +-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid, __u32 rdev) ++yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid, __u32 rdev) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, + uid, gid, NULL, NULL, rdev); + } + +-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid, +- const YCHAR * alias) ++yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid, ++ const YCHAR *alias) + { + return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, +- uid, gid, NULL, alias, 0); ++ uid, gid, NULL, alias, 0); + } + + /* yaffs_Link returns the object id of the equivalent object.*/ +-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, +- yaffs_Object * equivalentObject) ++yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, ++ yaffs_Object *equivalentObject) + { + /* Get the real object in case we were fed a hard link as an equivalent object */ + equivalentObject = yaffs_GetEquivalentObject(equivalentObject); +@@ -2363,33 +2396,31 @@ yaffs_Object *yaffs_Link(yaffs_Object * + + } + +-static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir, +- const YCHAR * newName, int force, int shadows) ++static int yaffs_ChangeObjectName(yaffs_Object *obj, yaffs_Object *newDir, ++ const YCHAR *newName, int force, int shadows) + { + int unlinkOp; + int deleteOp; + + yaffs_Object *existingTarget; + +- if (newDir == NULL) { ++ if (newDir == NULL) + newDir = obj->parent; /* use the old directory */ +- } + + if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("tragendy: yaffs_ChangeObjectName: newDir is not a directory" ++ ("tragedy: yaffs_ChangeObjectName: newDir is not a directory" + TENDSTR))); + YBUG(); + } + + /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ +- if (obj->myDev->isYaffs2) { ++ if (obj->myDev->isYaffs2) + unlinkOp = (newDir == obj->myDev->unlinkedDir); +- } else { ++ else + unlinkOp = (newDir == obj->myDev->unlinkedDir + && obj->variantType == YAFFS_OBJECT_TYPE_FILE); +- } + + deleteOp = (newDir == obj->myDev->deletedDir); + +@@ -2415,40 +2446,40 @@ static int yaffs_ChangeObjectName(yaffs_ + obj->unlinked = 1; + + /* If it is a deletion then we mark it as a shrink for gc purposes. */ +- if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows)>= 0) ++ if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows) >= 0) + return YAFFS_OK; + } + + return YAFFS_FAIL; + } + +-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, +- yaffs_Object * newDir, const YCHAR * newName) ++int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, ++ yaffs_Object *newDir, const YCHAR *newName) + { +- yaffs_Object *obj; +- yaffs_Object *existingTarget; ++ yaffs_Object *obj = NULL; ++ yaffs_Object *existingTarget = NULL; + int force = 0; + ++ ++ if (!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) ++ YBUG(); ++ if (!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) ++ YBUG(); ++ + #ifdef CONFIG_YAFFS_CASE_INSENSITIVE + /* Special case for case insemsitive systems (eg. WinCE). + * While look-up is case insensitive, the name isn't. + * Therefore we might want to change x.txt to X.txt + */ +- if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) { ++ if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) + force = 1; +- } + #endif + ++ else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) ++ /* ENAMETOOLONG */ ++ return YAFFS_FAIL; ++ + obj = yaffs_FindObjectByName(oldDir, oldName); +- /* Check new name to long. */ +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK && +- yaffs_strlen(newName) > YAFFS_MAX_ALIAS_LENGTH) +- /* ENAMETOOLONG */ +- return YAFFS_FAIL; +- else if (obj->variantType != YAFFS_OBJECT_TYPE_SYMLINK && +- yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) +- /* ENAMETOOLONG */ +- return YAFFS_FAIL; + + if (obj && obj->renameAllowed) { + +@@ -2456,8 +2487,8 @@ int yaffs_RenameObject(yaffs_Object * ol + + existingTarget = yaffs_FindObjectByName(newDir, newName); + if (existingTarget && +- existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && +- !list_empty(&existingTarget->variant.directoryVariant.children)) { ++ existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && ++ !ylist_empty(&existingTarget->variant.directoryVariant.children)) { + /* There is a target that is a non-empty directory, so we fail */ + return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ + } else if (existingTarget && existingTarget != obj) { +@@ -2465,7 +2496,7 @@ int yaffs_RenameObject(yaffs_Object * ol + * but only if it isn't the same object + */ + yaffs_ChangeObjectName(obj, newDir, newName, force, +- existingTarget->objectId); ++ existingTarget->objectId); + yaffs_UnlinkObject(existingTarget); + } + +@@ -2476,7 +2507,7 @@ int yaffs_RenameObject(yaffs_Object * ol + + /*------------------------- Block Management and Page Allocation ----------------*/ + +-static int yaffs_InitialiseBlocks(yaffs_Device * dev) ++static int yaffs_InitialiseBlocks(yaffs_Device *dev) + { + int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; + +@@ -2487,23 +2518,20 @@ static int yaffs_InitialiseBlocks(yaffs_ + + /* If the first allocation strategy fails, thry the alternate one */ + dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo)); +- if(!dev->blockInfo){ ++ if (!dev->blockInfo) { + dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo)); + dev->blockInfoAlt = 1; +- } +- else ++ } else + dev->blockInfoAlt = 0; + +- if(dev->blockInfo){ +- ++ if (dev->blockInfo) { + /* Set up dynamic blockinfo stuff. */ + dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ + dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); +- if(!dev->chunkBits){ ++ if (!dev->chunkBits) { + dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks); + dev->chunkBitsAlt = 1; +- } +- else ++ } else + dev->chunkBitsAlt = 0; + } + +@@ -2514,30 +2542,29 @@ static int yaffs_InitialiseBlocks(yaffs_ + } + + return YAFFS_FAIL; +- + } + +-static void yaffs_DeinitialiseBlocks(yaffs_Device * dev) ++static void yaffs_DeinitialiseBlocks(yaffs_Device *dev) + { +- if(dev->blockInfoAlt && dev->blockInfo) ++ if (dev->blockInfoAlt && dev->blockInfo) + YFREE_ALT(dev->blockInfo); +- else if(dev->blockInfo) ++ else if (dev->blockInfo) + YFREE(dev->blockInfo); + + dev->blockInfoAlt = 0; + + dev->blockInfo = NULL; + +- if(dev->chunkBitsAlt && dev->chunkBits) ++ if (dev->chunkBitsAlt && dev->chunkBits) + YFREE_ALT(dev->chunkBits); +- else if(dev->chunkBits) ++ else if (dev->chunkBits) + YFREE(dev->chunkBits); + dev->chunkBitsAlt = 0; + dev->chunkBits = NULL; + } + +-static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device * dev, +- yaffs_BlockInfo * bi) ++static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device *dev, ++ yaffs_BlockInfo *bi) + { + int i; + __u32 seq; +@@ -2556,7 +2583,7 @@ static int yaffs_BlockNotDisqualifiedFro + seq = dev->sequenceNumber; + + for (i = dev->internalStartBlock; i <= dev->internalEndBlock; +- i++) { ++ i++) { + b = yaffs_GetBlockInfo(dev, i); + if (b->blockState == YAFFS_BLOCK_STATE_FULL && + (b->pagesInUse - b->softDeletions) < +@@ -2571,38 +2598,36 @@ static int yaffs_BlockNotDisqualifiedFro + * discarded pages. + */ + return (bi->sequenceNumber <= dev->oldestDirtySequence); +- + } + + /* FindDiretiestBlock is used to select the dirtiest block (or close enough) + * for garbage collection. + */ + +-static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, +- int aggressive) ++static int yaffs_FindBlockForGarbageCollection(yaffs_Device *dev, ++ int aggressive) + { +- + int b = dev->currentDirtyChecker; + + int i; + int iterations; + int dirtiest = -1; + int pagesInUse = 0; +- int prioritised=0; ++ int prioritised = 0; + yaffs_BlockInfo *bi; + int pendingPrioritisedExist = 0; + + /* First let's see if we need to grab a prioritised block */ +- if(dev->hasPendingPrioritisedGCs){ +- for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){ ++ if (dev->hasPendingPrioritisedGCs) { ++ for (i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++) { + + bi = yaffs_GetBlockInfo(dev, i); +- //yaffs_VerifyBlock(dev,bi,i); ++ /* yaffs_VerifyBlock(dev,bi,i); */ + +- if(bi->gcPrioritise) { ++ if (bi->gcPrioritise) { + pendingPrioritisedExist = 1; +- if(bi->blockState == YAFFS_BLOCK_STATE_FULL && +- yaffs_BlockNotDisqualifiedFromGC(dev, bi)){ ++ if (bi->blockState == YAFFS_BLOCK_STATE_FULL && ++ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { + pagesInUse = (bi->pagesInUse - bi->softDeletions); + dirtiest = i; + prioritised = 1; +@@ -2611,7 +2636,7 @@ static int yaffs_FindBlockForGarbageColl + } + } + +- if(!pendingPrioritisedExist) /* None found, so we can clear this */ ++ if (!pendingPrioritisedExist) /* None found, so we can clear this */ + dev->hasPendingPrioritisedGCs = 0; + } + +@@ -2623,31 +2648,28 @@ static int yaffs_FindBlockForGarbageColl + + dev->nonAggressiveSkip--; + +- if (!aggressive && (dev->nonAggressiveSkip > 0)) { ++ if (!aggressive && (dev->nonAggressiveSkip > 0)) + return -1; +- } + +- if(!prioritised) ++ if (!prioritised) + pagesInUse = +- (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; ++ (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; + +- if (aggressive) { ++ if (aggressive) + iterations = + dev->internalEndBlock - dev->internalStartBlock + 1; +- } else { ++ else { + iterations = + dev->internalEndBlock - dev->internalStartBlock + 1; + iterations = iterations / 16; +- if (iterations > 200) { ++ if (iterations > 200) + iterations = 200; +- } + } + + for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) { + b++; +- if (b < dev->internalStartBlock || b > dev->internalEndBlock) { ++ if (b < dev->internalStartBlock || b > dev->internalEndBlock) + b = dev->internalStartBlock; +- } + + if (b < dev->internalStartBlock || b > dev->internalEndBlock) { + T(YAFFS_TRACE_ERROR, +@@ -2657,17 +2679,9 @@ static int yaffs_FindBlockForGarbageColl + + bi = yaffs_GetBlockInfo(dev, b); + +-#if 0 +- if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { +- dirtiest = b; +- pagesInUse = 0; +- } +- else +-#endif +- + if (bi->blockState == YAFFS_BLOCK_STATE_FULL && +- (bi->pagesInUse - bi->softDeletions) < pagesInUse && +- yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { ++ (bi->pagesInUse - bi->softDeletions) < pagesInUse && ++ yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { + dirtiest = b; + pagesInUse = (bi->pagesInUse - bi->softDeletions); + } +@@ -2678,19 +2692,18 @@ static int yaffs_FindBlockForGarbageColl + if (dirtiest > 0) { + T(YAFFS_TRACE_GC, + (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest, +- dev->nChunksPerBlock - pagesInUse,prioritised)); ++ dev->nChunksPerBlock - pagesInUse, prioritised)); + } + + dev->oldestDirtySequence = 0; + +- if (dirtiest > 0) { ++ if (dirtiest > 0) + dev->nonAggressiveSkip = 4; +- } + + return dirtiest; + } + +-static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo) ++static void yaffs_BlockBecameDirty(yaffs_Device *dev, int blockNo) + { + yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo); + +@@ -2752,7 +2765,7 @@ static void yaffs_BlockBecameDirty(yaffs + } + } + +-static int yaffs_FindBlockForAllocation(yaffs_Device * dev) ++static int yaffs_FindBlockForAllocation(yaffs_Device *dev) + { + int i; + +@@ -2763,7 +2776,7 @@ static int yaffs_FindBlockForAllocation( + * Can't get space to gc + */ + T(YAFFS_TRACE_ERROR, +- (TSTR("yaffs tragedy: no more eraased blocks" TENDSTR))); ++ (TSTR("yaffs tragedy: no more erased blocks" TENDSTR))); + + return -1; + } +@@ -2794,31 +2807,74 @@ static int yaffs_FindBlockForAllocation( + + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("yaffs tragedy: no more eraased blocks, but there should have been %d" ++ ("yaffs tragedy: no more erased blocks, but there should have been %d" + TENDSTR), dev->nErasedBlocks)); + + return -1; + } + + +-// Check if there's space to allocate... +-// Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? +-static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev) ++ ++static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev) ++{ ++ if (!dev->nCheckpointBlocksRequired && ++ dev->isYaffs2) { ++ /* Not a valid value so recalculate */ ++ int nBytes = 0; ++ int nBlocks; ++ int devBlocks = (dev->endBlock - dev->startBlock + 1); ++ int tnodeSize; ++ ++ tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ ++ nBytes += sizeof(yaffs_CheckpointValidity); ++ nBytes += sizeof(yaffs_CheckpointDevice); ++ nBytes += devBlocks * sizeof(yaffs_BlockInfo); ++ nBytes += devBlocks * dev->chunkBitmapStride; ++ nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects); ++ nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes); ++ nBytes += sizeof(yaffs_CheckpointValidity); ++ nBytes += sizeof(__u32); /* checksum*/ ++ ++ /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ ++ ++ nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3; ++ ++ dev->nCheckpointBlocksRequired = nBlocks; ++ } ++ ++ return dev->nCheckpointBlocksRequired; ++} ++ ++/* ++ * Check if there's space to allocate... ++ * Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? ++ */ ++static int yaffs_CheckSpaceForAllocation(yaffs_Device *dev) + { + int reservedChunks; + int reservedBlocks = dev->nReservedBlocks; + int checkpointBlocks; + +- checkpointBlocks = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; +- if(checkpointBlocks < 0) ++ if (dev->isYaffs2) { ++ checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - ++ dev->blocksInCheckpoint; ++ if (checkpointBlocks < 0) ++ checkpointBlocks = 0; ++ } else { + checkpointBlocks = 0; ++ } + + reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); + + return (dev->nFreeChunks > reservedChunks); + } + +-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr) ++static int yaffs_AllocateChunk(yaffs_Device *dev, int useReserve, ++ yaffs_BlockInfo **blockUsedPtr) + { + int retVal; + yaffs_BlockInfo *bi; +@@ -2835,7 +2891,7 @@ static int yaffs_AllocateChunk(yaffs_Dev + } + + if (dev->nErasedBlocks < dev->nReservedBlocks +- && dev->allocationPage == 0) { ++ && dev->allocationPage == 0) { + T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); + } + +@@ -2844,10 +2900,10 @@ static int yaffs_AllocateChunk(yaffs_Dev + bi = yaffs_GetBlockInfo(dev, dev->allocationBlock); + + retVal = (dev->allocationBlock * dev->nChunksPerBlock) + +- dev->allocationPage; ++ dev->allocationPage; + bi->pagesInUse++; + yaffs_SetChunkBit(dev, dev->allocationBlock, +- dev->allocationPage); ++ dev->allocationPage); + + dev->allocationPage++; + +@@ -2859,43 +2915,43 @@ static int yaffs_AllocateChunk(yaffs_Dev + dev->allocationBlock = -1; + } + +- if(blockUsedPtr) ++ if (blockUsedPtr) + *blockUsedPtr = bi; + + return retVal; + } + + T(YAFFS_TRACE_ERROR, +- (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); ++ (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); + + return -1; + } + +-static int yaffs_GetErasedChunks(yaffs_Device * dev) ++static int yaffs_GetErasedChunks(yaffs_Device *dev) + { + int n; + + n = dev->nErasedBlocks * dev->nChunksPerBlock; + +- if (dev->allocationBlock > 0) { ++ if (dev->allocationBlock > 0) + n += (dev->nChunksPerBlock - dev->allocationPage); +- } + + return n; + + } + +-static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) ++static int yaffs_GarbageCollectBlock(yaffs_Device *dev, int block, ++ int wholeBlock) + { + int oldChunk; + int newChunk; +- int chunkInBlock; + int markNAND; + int retVal = YAFFS_OK; + int cleanups = 0; + int i; + int isCheckpointBlock; + int matchingChunk; ++ int maxCopies; + + int chunksBefore = yaffs_GetErasedChunks(dev); + int chunksAfter; +@@ -2911,8 +2967,11 @@ static int yaffs_GarbageCollectBlock(yaf + bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; + + T(YAFFS_TRACE_TRACING, +- (TSTR("Collecting block %d, in use %d, shrink %d, " TENDSTR), block, +- bi->pagesInUse, bi->hasShrinkHeader)); ++ (TSTR("Collecting block %d, in use %d, shrink %d, wholeBlock %d" TENDSTR), ++ block, ++ bi->pagesInUse, ++ bi->hasShrinkHeader, ++ wholeBlock)); + + /*yaffs_VerifyFreeChunks(dev); */ + +@@ -2926,26 +2985,33 @@ static int yaffs_GarbageCollectBlock(yaf + dev->isDoingGC = 1; + + if (isCheckpointBlock || +- !yaffs_StillSomeChunkBits(dev, block)) { ++ !yaffs_StillSomeChunkBits(dev, block)) { + T(YAFFS_TRACE_TRACING, +- (TSTR +- ("Collecting block %d that has no chunks in use" TENDSTR), +- block)); ++ (TSTR ++ ("Collecting block %d that has no chunks in use" TENDSTR), ++ block)); + yaffs_BlockBecameDirty(dev, block); + } else { + + __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); + +- yaffs_VerifyBlock(dev,bi,block); ++ yaffs_VerifyBlock(dev, bi, block); + +- for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock; +- chunkInBlock < dev->nChunksPerBlock +- && yaffs_StillSomeChunkBits(dev, block); +- chunkInBlock++, oldChunk++) { +- if (yaffs_CheckChunkBit(dev, block, chunkInBlock)) { ++ maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10; ++ oldChunk = block * dev->nChunksPerBlock + dev->gcChunk; ++ ++ for (/* init already done */; ++ retVal == YAFFS_OK && ++ dev->gcChunk < dev->nChunksPerBlock && ++ (bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) && ++ maxCopies > 0; ++ dev->gcChunk++, oldChunk++) { ++ if (yaffs_CheckChunkBit(dev, block, dev->gcChunk)) { + + /* This page is in use and might need to be copied off */ + ++ maxCopies--; ++ + markNAND = 1; + + yaffs_InitialiseTags(&tags); +@@ -2959,22 +3025,22 @@ static int yaffs_GarbageCollectBlock(yaf + + T(YAFFS_TRACE_GC_DETAIL, + (TSTR +- ("Collecting page %d, %d %d %d " TENDSTR), +- chunkInBlock, tags.objectId, tags.chunkId, ++ ("Collecting chunk in block %d, %d %d %d " TENDSTR), ++ dev->gcChunk, tags.objectId, tags.chunkId, + tags.byteCount)); + +- if(object && !yaffs_SkipVerification(dev)){ +- if(tags.chunkId == 0) +- matchingChunk = object->chunkId; +- else if(object->softDeleted) ++ if (object && !yaffs_SkipVerification(dev)) { ++ if (tags.chunkId == 0) ++ matchingChunk = object->hdrChunk; ++ else if (object->softDeleted) + matchingChunk = oldChunk; /* Defeat the test */ + else +- matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL); ++ matchingChunk = yaffs_FindChunkInFile(object, tags.chunkId, NULL); + +- if(oldChunk != matchingChunk) ++ if (oldChunk != matchingChunk) + T(YAFFS_TRACE_ERROR, + (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), +- oldChunk,matchingChunk,tags.objectId, tags.chunkId)); ++ oldChunk, matchingChunk, tags.objectId, tags.chunkId)); + + } + +@@ -2986,9 +3052,11 @@ static int yaffs_GarbageCollectBlock(yaf + tags.objectId, tags.chunkId, tags.byteCount)); + } + +- if (object && object->deleted +- && tags.chunkId != 0) { +- /* Data chunk in a deleted file, throw it away ++ if (object && ++ object->deleted && ++ object->softDeleted && ++ tags.chunkId != 0) { ++ /* Data chunk in a soft deleted file, throw it away + * It's a soft deleted data chunk, + * No need to copy this, just forget about it and + * fix up the object. +@@ -3003,13 +3071,12 @@ static int yaffs_GarbageCollectBlock(yaf + cleanups++; + } + markNAND = 0; +- } else if (0 +- /* Todo object && object->deleted && object->nDataChunks == 0 */ +- ) { ++ } else if (0) { ++ /* Todo object && object->deleted && object->nDataChunks == 0 */ + /* Deleted object header with no data chunks. + * Can be discarded and the file deleted. + */ +- object->chunkId = 0; ++ object->hdrChunk = 0; + yaffs_FreeTnode(object->myDev, + object->variant. + fileVariant.top); +@@ -3031,17 +3098,14 @@ static int yaffs_GarbageCollectBlock(yaf + * We need to nuke the shrinkheader flags first + * We no longer want the shrinkHeader flag since its work is done + * and if it is left in place it will mess up scanning. +- * Also, clear out any shadowing stuff + */ + + yaffs_ObjectHeader *oh; + oh = (yaffs_ObjectHeader *)buffer; + oh->isShrink = 0; +- oh->shadowsObject = -1; +- tags.extraShadows = 0; + tags.extraIsShrinkHeader = 0; + +- yaffs_VerifyObjectHeader(object,oh,&tags,1); ++ yaffs_VerifyObjectHeader(object, oh, &tags, 1); + } + + newChunk = +@@ -3055,7 +3119,7 @@ static int yaffs_GarbageCollectBlock(yaf + + if (tags.chunkId == 0) { + /* It's a header */ +- object->chunkId = newChunk; ++ object->hdrChunk = newChunk; + object->serial = tags.serialNumber; + } else { + /* It's a data chunk */ +@@ -3067,7 +3131,8 @@ static int yaffs_GarbageCollectBlock(yaf + } + } + +- yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); ++ if (retVal == YAFFS_OK) ++ yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); + + } + } +@@ -3098,18 +3163,25 @@ static int yaffs_GarbageCollectBlock(yaf + + } + +- yaffs_VerifyCollectedBlock(dev,bi,block); ++ yaffs_VerifyCollectedBlock(dev, bi, block); + +- if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) { ++ chunksAfter = yaffs_GetErasedChunks(dev); ++ if (chunksBefore >= chunksAfter) { + T(YAFFS_TRACE_GC, + (TSTR + ("gc did not increase free chunks before %d after %d" + TENDSTR), chunksBefore, chunksAfter)); + } + ++ /* If the gc completed then clear the current gcBlock so that we find another. */ ++ if (bi->blockState != YAFFS_BLOCK_STATE_COLLECTING) { ++ dev->gcBlock = -1; ++ dev->gcChunk = 0; ++ } ++ + dev->isDoingGC = 0; + +- return YAFFS_OK; ++ return retVal; + } + + /* New garbage collector +@@ -3121,7 +3193,7 @@ static int yaffs_GarbageCollectBlock(yaf + * The idea is to help clear out space in a more spread-out manner. + * Dunno if it really does anything useful. + */ +-static int yaffs_CheckGarbageCollection(yaffs_Device * dev) ++static int yaffs_CheckGarbageCollection(yaffs_Device *dev) + { + int block; + int aggressive; +@@ -3142,8 +3214,8 @@ static int yaffs_CheckGarbageCollection( + do { + maxTries++; + +- checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint); +- if(checkpointBlockAdjust < 0) ++ checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; ++ if (checkpointBlockAdjust < 0) + checkpointBlockAdjust = 0; + + if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) { +@@ -3154,20 +3226,24 @@ static int yaffs_CheckGarbageCollection( + aggressive = 0; + } + +- block = yaffs_FindBlockForGarbageCollection(dev, aggressive); ++ if (dev->gcBlock <= 0) { ++ dev->gcBlock = yaffs_FindBlockForGarbageCollection(dev, aggressive); ++ dev->gcChunk = 0; ++ } ++ ++ block = dev->gcBlock; + + if (block > 0) { + dev->garbageCollections++; +- if (!aggressive) { ++ if (!aggressive) + dev->passiveGarbageCollections++; +- } + + T(YAFFS_TRACE_GC, + (TSTR + ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), + dev->nErasedBlocks, aggressive)); + +- gcOk = yaffs_GarbageCollectBlock(dev, block); ++ gcOk = yaffs_GarbageCollectBlock(dev, block, aggressive); + } + + if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) { +@@ -3176,15 +3252,16 @@ static int yaffs_CheckGarbageCollection( + ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" + TENDSTR), dev->nErasedBlocks, maxTries, block)); + } +- } while ((dev->nErasedBlocks < dev->nReservedBlocks) && (block > 0) +- && (maxTries < 2)); ++ } while ((dev->nErasedBlocks < dev->nReservedBlocks) && ++ (block > 0) && ++ (maxTries < 2)); + + return aggressive ? gcOk : YAFFS_OK; + } + + /*------------------------- TAGS --------------------------------*/ + +-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, ++static int yaffs_TagsMatch(const yaffs_ExtendedTags *tags, int objectId, + int chunkInObject) + { + return (tags->chunkId == chunkInObject && +@@ -3195,8 +3272,8 @@ static int yaffs_TagsMatch(const yaffs_E + + /*-------------------- Data file manipulation -----------------*/ + +-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, +- yaffs_ExtendedTags * tags) ++static int yaffs_FindChunkInFile(yaffs_Object *in, int chunkInInode, ++ yaffs_ExtendedTags *tags) + { + /*Get the Tnode, then get the level 0 offset chunk offset */ + yaffs_Tnode *tn; +@@ -3214,7 +3291,7 @@ static int yaffs_FindChunkInFile(yaffs_O + tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); + + if (tn) { +- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); + + retVal = + yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, +@@ -3223,8 +3300,8 @@ static int yaffs_FindChunkInFile(yaffs_O + return retVal; + } + +-static int yaffs_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode, +- yaffs_ExtendedTags * tags) ++static int yaffs_FindAndDeleteChunkInFile(yaffs_Object *in, int chunkInInode, ++ yaffs_ExtendedTags *tags) + { + /* Get the Tnode, then get the level 0 offset chunk offset */ + yaffs_Tnode *tn; +@@ -3243,29 +3320,23 @@ static int yaffs_FindAndDeleteChunkInFil + + if (tn) { + +- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); + + retVal = + yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, + chunkInInode); + + /* Delete the entry in the filestructure (if found) */ +- if (retVal != -1) { +- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,0); +- } +- } else { +- /*T(("No level 0 found for %d\n", chunkInInode)); */ ++ if (retVal != -1) ++ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, 0); + } + +- if (retVal == -1) { +- /* T(("Could not find %d to delete\n",chunkInInode)); */ +- } + return retVal; + } + + #ifdef YAFFS_PARANOID + +-static int yaffs_CheckFileSanity(yaffs_Object * in) ++static int yaffs_CheckFileSanity(yaffs_Object *in) + { + int chunk; + int nChunks; +@@ -3278,10 +3349,8 @@ static int yaffs_CheckFileSanity(yaffs_O + int theChunk; + int chunkDeleted; + +- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { +- /* T(("Object not a file\n")); */ ++ if (in->variantType != YAFFS_OBJECT_TYPE_FILE) + return YAFFS_FAIL; +- } + + objId = in->objectId; + fSize = in->variant.fileVariant.fileSize; +@@ -3294,7 +3363,7 @@ static int yaffs_CheckFileSanity(yaffs_O + + if (tn) { + +- theChunk = yaffs_GetChunkGroupBase(dev,tn,chunk); ++ theChunk = yaffs_GetChunkGroupBase(dev, tn, chunk); + + if (yaffs_CheckChunkBits + (dev, theChunk / dev->nChunksPerBlock, +@@ -3323,7 +3392,7 @@ static int yaffs_CheckFileSanity(yaffs_O + + #endif + +-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, ++static int yaffs_PutChunkIntoFile(yaffs_Object *in, int chunkInInode, + int chunkInNAND, int inScan) + { + /* NB inScan is zero unless scanning. +@@ -3358,11 +3427,10 @@ static int yaffs_PutChunkIntoFile(yaffs_ + &in->variant.fileVariant, + chunkInInode, + NULL); +- if (!tn) { ++ if (!tn) + return YAFFS_FAIL; +- } + +- existingChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); ++ existingChunk = yaffs_GetChunkGroupBase(dev, tn, chunkInInode); + + if (inScan != 0) { + /* If we're scanning then we need to test for duplicates +@@ -3374,7 +3442,7 @@ static int yaffs_PutChunkIntoFile(yaffs_ + * Update: For backward scanning we don't need to re-read tags so this is quite cheap. + */ + +- if (existingChunk != 0) { ++ if (existingChunk > 0) { + /* NB Right now existing chunk will not be real chunkId if the device >= 32MB + * thus we have to do a FindChunkInFile to get the real chunk id. + * +@@ -3411,8 +3479,10 @@ static int yaffs_PutChunkIntoFile(yaffs_ + * not be loaded during a scan + */ + +- newSerial = newTags.serialNumber; +- existingSerial = existingTags.serialNumber; ++ if (inScan > 0) { ++ newSerial = newTags.serialNumber; ++ existingSerial = existingTags.serialNumber; ++ } + + if ((inScan > 0) && + (in->myDev->isYaffs2 || +@@ -3437,24 +3507,23 @@ static int yaffs_PutChunkIntoFile(yaffs_ + + } + +- if (existingChunk == 0) { ++ if (existingChunk == 0) + in->nDataChunks++; +- } + +- yaffs_PutLevel0Tnode(dev,tn,chunkInInode,chunkInNAND); ++ yaffs_PutLevel0Tnode(dev, tn, chunkInInode, chunkInNAND); + + return YAFFS_OK; + } + +-static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode, +- __u8 * buffer) ++static int yaffs_ReadChunkDataFromObject(yaffs_Object *in, int chunkInInode, ++ __u8 *buffer) + { + int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL); + +- if (chunkInNAND >= 0) { ++ if (chunkInNAND >= 0) + return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND, +- buffer,NULL); +- } else { ++ buffer, NULL); ++ else { + T(YAFFS_TRACE_NANDACCESS, + (TSTR("Chunk %d not found zero instead" TENDSTR), + chunkInNAND)); +@@ -3465,7 +3534,7 @@ static int yaffs_ReadChunkDataFromObject + + } + +-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn) ++void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn) + { + int block; + int page; +@@ -3475,16 +3544,15 @@ void yaffs_DeleteChunk(yaffs_Device * de + if (chunkId <= 0) + return; + +- + dev->nDeletions++; + block = chunkId / dev->nChunksPerBlock; + page = chunkId % dev->nChunksPerBlock; + + +- if(!yaffs_CheckChunkBit(dev,block,page)) ++ if (!yaffs_CheckChunkBit(dev, block, page)) + T(YAFFS_TRACE_VERIFY, +- (TSTR("Deleting invalid chunk %d"TENDSTR), +- chunkId)); ++ (TSTR("Deleting invalid chunk %d"TENDSTR), ++ chunkId)); + + bi = yaffs_GetBlockInfo(dev, block); + +@@ -3524,14 +3592,12 @@ void yaffs_DeleteChunk(yaffs_Device * de + yaffs_BlockBecameDirty(dev, block); + } + +- } else { +- /* T(("Bad news deleting chunk %d\n",chunkId)); */ + } + + } + +-static int yaffs_WriteChunkDataToObject(yaffs_Object * in, int chunkInInode, +- const __u8 * buffer, int nBytes, ++static int yaffs_WriteChunkDataToObject(yaffs_Object *in, int chunkInInode, ++ const __u8 *buffer, int nBytes, + int useReserve) + { + /* Find old chunk Need to do this to get serial number +@@ -3561,6 +3627,12 @@ static int yaffs_WriteChunkDataToObject( + (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1; + newTags.byteCount = nBytes; + ++ if (nBytes < 1 || nBytes > dev->totalBytesPerChunk) { ++ T(YAFFS_TRACE_ERROR, ++ (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes)); ++ YBUG(); ++ } ++ + newChunkId = + yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, + useReserve); +@@ -3568,11 +3640,9 @@ static int yaffs_WriteChunkDataToObject( + if (newChunkId >= 0) { + yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0); + +- if (prevChunkId >= 0) { ++ if (prevChunkId >= 0) + yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__); + +- } +- + yaffs_CheckFileSanity(in); + } + return newChunkId; +@@ -3582,7 +3652,7 @@ static int yaffs_WriteChunkDataToObject( + /* UpdateObjectHeader updates the header on NAND for an object. + * If name is not NULL, then that new name is used. + */ +-int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, ++int yaffs_UpdateObjectHeader(yaffs_Object *in, const YCHAR *name, int force, + int isShrink, int shadows) + { + +@@ -3603,9 +3673,12 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + + yaffs_ObjectHeader *oh = NULL; + +- yaffs_strcpy(oldName,"silly old name"); ++ yaffs_strcpy(oldName, _Y("silly old name")); + +- if (!in->fake || force) { ++ ++ if (!in->fake || ++ in == dev->rootDir || /* The rootDir should also be saved */ ++ force) { + + yaffs_CheckGarbageCollection(dev); + yaffs_CheckObjectDetailsLoaded(in); +@@ -3613,13 +3686,13 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + buffer = yaffs_GetTempBuffer(in->myDev, __LINE__); + oh = (yaffs_ObjectHeader *) buffer; + +- prevChunkId = in->chunkId; ++ prevChunkId = in->hdrChunk; + +- if (prevChunkId >= 0) { ++ if (prevChunkId > 0) { + result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, + buffer, &oldTags); + +- yaffs_VerifyObjectHeader(in,oh,&oldTags,0); ++ yaffs_VerifyObjectHeader(in, oh, &oldTags, 0); + + memcpy(oldName, oh->name, sizeof(oh->name)); + } +@@ -3628,7 +3701,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + + oh->type = in->variantType; + oh->yst_mode = in->yst_mode; +- oh->shadowsObject = shadows; ++ oh->shadowsObject = oh->inbandShadowsObject = shadows; + + #ifdef CONFIG_YAFFS_WINCE + oh->win_atime[0] = in->win_atime[0]; +@@ -3645,20 +3718,18 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + oh->yst_ctime = in->yst_ctime; + oh->yst_rdev = in->yst_rdev; + #endif +- if (in->parent) { ++ if (in->parent) + oh->parentObjectId = in->parent->objectId; +- } else { ++ else + oh->parentObjectId = 0; +- } + + if (name && *name) { + memset(oh->name, 0, sizeof(oh->name)); + yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH); +- } else if (prevChunkId>=0) { ++ } else if (prevChunkId >= 0) + memcpy(oh->name, oldName, sizeof(oh->name)); +- } else { ++ else + memset(oh->name, 0, sizeof(oh->name)); +- } + + oh->isShrink = isShrink; + +@@ -3708,7 +3779,7 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0; + newTags.extraObjectType = in->variantType; + +- yaffs_VerifyObjectHeader(in,oh,&newTags,1); ++ yaffs_VerifyObjectHeader(in, oh, &newTags, 1); + + /* Create new chunk in NAND */ + newChunkId = +@@ -3717,20 +3788,20 @@ int yaffs_UpdateObjectHeader(yaffs_Objec + + if (newChunkId >= 0) { + +- in->chunkId = newChunkId; ++ in->hdrChunk = newChunkId; + + if (prevChunkId >= 0) { + yaffs_DeleteChunk(dev, prevChunkId, 1, + __LINE__); + } + +- if(!yaffs_ObjectHasCachedWriteData(in)) ++ if (!yaffs_ObjectHasCachedWriteData(in)) + in->dirty = 0; + + /* If this was a shrink, then mark the block that the chunk lives on */ + if (isShrink) { + bi = yaffs_GetBlockInfo(in->myDev, +- newChunkId /in->myDev-> nChunksPerBlock); ++ newChunkId / in->myDev->nChunksPerBlock); + bi->hasShrinkHeader = 1; + } + +@@ -3766,7 +3837,7 @@ static int yaffs_ObjectHasCachedWriteDat + yaffs_ChunkCache *cache; + int nCaches = obj->myDev->nShortOpCaches; + +- for(i = 0; i < nCaches; i++){ ++ for (i = 0; i < nCaches; i++) { + cache = &dev->srCache[i]; + if (cache->object == obj && + cache->dirty) +@@ -3777,7 +3848,7 @@ static int yaffs_ObjectHasCachedWriteDat + } + + +-static void yaffs_FlushFilesChunkCache(yaffs_Object * obj) ++static void yaffs_FlushFilesChunkCache(yaffs_Object *obj) + { + yaffs_Device *dev = obj->myDev; + int lowest = -99; /* Stop compiler whining. */ +@@ -3844,16 +3915,16 @@ void yaffs_FlushEntireDeviceCache(yaffs_ + */ + do { + obj = NULL; +- for( i = 0; i < nCaches && !obj; i++) { ++ for (i = 0; i < nCaches && !obj; i++) { + if (dev->srCache[i].object && + dev->srCache[i].dirty) + obj = dev->srCache[i].object; + + } +- if(obj) ++ if (obj) + yaffs_FlushFilesChunkCache(obj); + +- } while(obj); ++ } while (obj); + + } + +@@ -3863,41 +3934,21 @@ void yaffs_FlushEntireDeviceCache(yaffs_ + * Then look for the least recently used non-dirty one. + * Then look for the least recently used dirty one...., flush and look again. + */ +-static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev) ++static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device *dev) + { + int i; +- int usage; +- int theOne; + + if (dev->nShortOpCaches > 0) { + for (i = 0; i < dev->nShortOpCaches; i++) { + if (!dev->srCache[i].object) + return &dev->srCache[i]; + } ++ } + +- return NULL; ++ return NULL; ++} + +- theOne = -1; +- usage = 0; /* just to stop the compiler grizzling */ +- +- for (i = 0; i < dev->nShortOpCaches; i++) { +- if (!dev->srCache[i].dirty && +- ((dev->srCache[i].lastUse < usage && theOne >= 0) || +- theOne < 0)) { +- usage = dev->srCache[i].lastUse; +- theOne = i; +- } +- } +- +- +- return theOne >= 0 ? &dev->srCache[theOne] : NULL; +- } else { +- return NULL; +- } +- +-} +- +-static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev) ++static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device *dev) + { + yaffs_ChunkCache *cache; + yaffs_Object *theObj; +@@ -3927,8 +3978,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk + for (i = 0; i < dev->nShortOpCaches; i++) { + if (dev->srCache[i].object && + !dev->srCache[i].locked && +- (dev->srCache[i].lastUse < usage || !cache)) +- { ++ (dev->srCache[i].lastUse < usage || !cache)) { + usage = dev->srCache[i].lastUse; + theObj = dev->srCache[i].object; + cache = &dev->srCache[i]; +@@ -3950,7 +4000,7 @@ static yaffs_ChunkCache *yaffs_GrabChunk + } + + /* Find a cached chunk */ +-static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object * obj, ++static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object *obj, + int chunkId) + { + yaffs_Device *dev = obj->myDev; +@@ -3969,7 +4019,7 @@ static yaffs_ChunkCache *yaffs_FindChunk + } + + /* Mark the chunk for the least recently used algorithym */ +-static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache, ++static void yaffs_UseChunkCache(yaffs_Device *dev, yaffs_ChunkCache *cache, + int isAWrite) + { + +@@ -3977,9 +4027,9 @@ static void yaffs_UseChunkCache(yaffs_De + if (dev->srLastUse < 0 || dev->srLastUse > 100000000) { + /* Reset the cache usages */ + int i; +- for (i = 1; i < dev->nShortOpCaches; i++) { ++ for (i = 1; i < dev->nShortOpCaches; i++) + dev->srCache[i].lastUse = 0; +- } ++ + dev->srLastUse = 0; + } + +@@ -3987,9 +4037,8 @@ static void yaffs_UseChunkCache(yaffs_De + + cache->lastUse = dev->srLastUse; + +- if (isAWrite) { ++ if (isAWrite) + cache->dirty = 1; +- } + } + } + +@@ -3997,21 +4046,20 @@ static void yaffs_UseChunkCache(yaffs_De + * Do this when a whole page gets written, + * ie the short cache for this page is no longer valid. + */ +-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId) ++static void yaffs_InvalidateChunkCache(yaffs_Object *object, int chunkId) + { + if (object->myDev->nShortOpCaches > 0) { + yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId); + +- if (cache) { ++ if (cache) + cache->object = NULL; +- } + } + } + + /* Invalidate all the cache pages associated with this object + * Do this whenever ther file is deleted or resized. + */ +-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in) ++static void yaffs_InvalidateWholeChunkCache(yaffs_Object *in) + { + int i; + yaffs_Device *dev = in->myDev; +@@ -4019,9 +4067,8 @@ static void yaffs_InvalidateWholeChunkCa + if (dev->nShortOpCaches > 0) { + /* Invalidate it. */ + for (i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].object == in) { ++ if (dev->srCache[i].object == in) + dev->srCache[i].object = NULL; +- } + } + } + } +@@ -4029,18 +4076,18 @@ static void yaffs_InvalidateWholeChunkCa + /*--------------------- Checkpointing --------------------*/ + + +-static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head) ++static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev, int head) + { + yaffs_CheckpointValidity cp; + +- memset(&cp,0,sizeof(cp)); ++ memset(&cp, 0, sizeof(cp)); + + cp.structType = sizeof(cp); + cp.magic = YAFFS_MAGIC; + cp.version = YAFFS_CHECKPOINT_VERSION; + cp.head = (head) ? 1 : 0; + +- return (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp))? ++ return (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)) ? + 1 : 0; + } + +@@ -4049,9 +4096,9 @@ static int yaffs_ReadCheckpointValidityM + yaffs_CheckpointValidity cp; + int ok; + +- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); + +- if(ok) ++ if (ok) + ok = (cp.structType == sizeof(cp)) && + (cp.magic == YAFFS_MAGIC) && + (cp.version == YAFFS_CHECKPOINT_VERSION) && +@@ -4100,21 +4147,21 @@ static int yaffs_WriteCheckpointDevice(y + int ok; + + /* Write device runtime values*/ +- yaffs_DeviceToCheckpointDevice(&cp,dev); ++ yaffs_DeviceToCheckpointDevice(&cp, dev); + cp.structType = sizeof(cp); + +- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); + + /* Write block info */ +- if(ok) { ++ if (ok) { + nBytes = nBlocks * sizeof(yaffs_BlockInfo); +- ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes); ++ ok = (yaffs_CheckpointWrite(dev, dev->blockInfo, nBytes) == nBytes); + } + + /* Write chunk bits */ +- if(ok) { ++ if (ok) { + nBytes = nBlocks * dev->chunkBitmapStride; +- ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes); ++ ok = (yaffs_CheckpointWrite(dev, dev->chunkBits, nBytes) == nBytes); + } + return ok ? 1 : 0; + +@@ -4128,25 +4175,25 @@ static int yaffs_ReadCheckpointDevice(ya + + int ok; + +- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); +- if(!ok) ++ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (!ok) + return 0; + +- if(cp.structType != sizeof(cp)) ++ if (cp.structType != sizeof(cp)) + return 0; + + +- yaffs_CheckpointDeviceToDevice(dev,&cp); ++ yaffs_CheckpointDeviceToDevice(dev, &cp); + + nBytes = nBlocks * sizeof(yaffs_BlockInfo); + +- ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes); ++ ok = (yaffs_CheckpointRead(dev, dev->blockInfo, nBytes) == nBytes); + +- if(!ok) ++ if (!ok) + return 0; + nBytes = nBlocks * dev->chunkBitmapStride; + +- ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes); ++ ok = (yaffs_CheckpointRead(dev, dev->chunkBits, nBytes) == nBytes); + + return ok ? 1 : 0; + } +@@ -4157,7 +4204,7 @@ static void yaffs_ObjectToCheckpointObje + + cp->objectId = obj->objectId; + cp->parentId = (obj->parent) ? obj->parent->objectId : 0; +- cp->chunkId = obj->chunkId; ++ cp->hdrChunk = obj->hdrChunk; + cp->variantType = obj->variantType; + cp->deleted = obj->deleted; + cp->softDeleted = obj->softDeleted; +@@ -4168,20 +4215,28 @@ static void yaffs_ObjectToCheckpointObje + cp->serial = obj->serial; + cp->nDataChunks = obj->nDataChunks; + +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) + cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; +- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) ++ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) + cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId; + } + +-static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointObject *cp) ++static int yaffs_CheckpointObjectToObject(yaffs_Object *obj, yaffs_CheckpointObject *cp) + { + + yaffs_Object *parent; + ++ if (obj->variantType != cp->variantType) { ++ T(YAFFS_TRACE_ERROR, (TSTR("Checkpoint read object %d type %d " ++ TCONT("chunk %d does not match existing object type %d") ++ TENDSTR), cp->objectId, cp->variantType, cp->hdrChunk, ++ obj->variantType)); ++ return 0; ++ } ++ + obj->objectId = cp->objectId; + +- if(cp->parentId) ++ if (cp->parentId) + parent = yaffs_FindOrCreateObjectByNumber( + obj->myDev, + cp->parentId, +@@ -4189,10 +4244,19 @@ static void yaffs_CheckpointObjectToObje + else + parent = NULL; + +- if(parent) ++ if (parent) { ++ if (parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Checkpoint read object %d parent %d type %d" ++ TCONT(" chunk %d Parent type, %d, not directory") ++ TENDSTR), ++ cp->objectId, cp->parentId, cp->variantType, ++ cp->hdrChunk, parent->variantType)); ++ return 0; ++ } + yaffs_AddObjectToDirectory(parent, obj); ++ } + +- obj->chunkId = cp->chunkId; ++ obj->hdrChunk = cp->hdrChunk; + obj->variantType = cp->variantType; + obj->deleted = cp->deleted; + obj->softDeleted = cp->softDeleted; +@@ -4203,29 +4267,34 @@ static void yaffs_CheckpointObjectToObje + obj->serial = cp->serial; + obj->nDataChunks = cp->nDataChunks; + +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) + obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; +- else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) ++ else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) + obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; + +- if(obj->objectId >= YAFFS_NOBJECT_BUCKETS) ++ if (obj->hdrChunk > 0) + obj->lazyLoaded = 1; ++ return 1; + } + + + +-static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, +- __u32 level, int chunkOffset) ++static int yaffs_CheckpointTnodeWorker(yaffs_Object *in, yaffs_Tnode *tn, ++ __u32 level, int chunkOffset) + { + int i; + yaffs_Device *dev = in->myDev; + int ok = 1; +- int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; ++ ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); ++ + + if (tn) { + if (level > 0) { + +- for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ ++ for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++) { + if (tn->internal[i]) { + ok = yaffs_CheckpointTnodeWorker(in, + tn->internal[i], +@@ -4235,10 +4304,9 @@ static int yaffs_CheckpointTnodeWorker(y + } + } else if (level == 0) { + __u32 baseOffset = chunkOffset << YAFFS_TNODES_LEVEL0_BITS; +- /* printf("write tnode at %d\n",baseOffset); */ +- ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset)); +- if(ok) +- ok = (yaffs_CheckpointWrite(dev,tn,nTnodeBytes) == nTnodeBytes); ++ ok = (yaffs_CheckpointWrite(dev, &baseOffset, sizeof(baseOffset)) == sizeof(baseOffset)); ++ if (ok) ++ ok = (yaffs_CheckpointWrite(dev, tn, tnodeSize) == tnodeSize); + } + } + +@@ -4251,13 +4319,13 @@ static int yaffs_WriteCheckpointTnodes(y + __u32 endMarker = ~0; + int ok = 1; + +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){ ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { + ok = yaffs_CheckpointTnodeWorker(obj, + obj->variant.fileVariant.top, + obj->variant.fileVariant.topLevel, + 0); +- if(ok) +- ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) == ++ if (ok) ++ ok = (yaffs_CheckpointWrite(obj->myDev, &endMarker, sizeof(endMarker)) == + sizeof(endMarker)); + } + +@@ -4272,38 +4340,38 @@ static int yaffs_ReadCheckpointTnodes(ya + yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; + yaffs_Tnode *tn; + int nread = 0; ++ int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; + +- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); ++ if (tnodeSize < sizeof(yaffs_Tnode)) ++ tnodeSize = sizeof(yaffs_Tnode); + +- while(ok && (~baseChunk)){ ++ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); ++ ++ while (ok && (~baseChunk)) { + nread++; + /* Read level 0 tnode */ + + +- /* printf("read tnode at %d\n",baseChunk); */ + tn = yaffs_GetTnodeRaw(dev); +- if(tn) +- ok = (yaffs_CheckpointRead(dev,tn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8) == +- (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); ++ if (tn) ++ ok = (yaffs_CheckpointRead(dev, tn, tnodeSize) == tnodeSize); + else + ok = 0; + +- if(tn && ok){ ++ if (tn && ok) + ok = yaffs_AddOrFindLevel0Tnode(dev, +- fileStructPtr, +- baseChunk, +- tn) ? 1 : 0; ++ fileStructPtr, ++ baseChunk, ++ tn) ? 1 : 0; + +- } +- +- if(ok) +- ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); ++ if (ok) ++ ok = (yaffs_CheckpointRead(dev, &baseChunk, sizeof(baseChunk)) == sizeof(baseChunk)); + + } + +- T(YAFFS_TRACE_CHECKPOINT,( ++ T(YAFFS_TRACE_CHECKPOINT, ( + TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), +- nread,baseChunk,ok)); ++ nread, baseChunk, ok)); + + return ok ? 1 : 0; + } +@@ -4315,41 +4383,40 @@ static int yaffs_WriteCheckpointObjects( + yaffs_CheckpointObject cp; + int i; + int ok = 1; +- struct list_head *lh; ++ struct ylist_head *lh; + + + /* Iterate through the objects in each hash entry, + * dumping them to the checkpointing stream. + */ + +- for(i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++){ +- list_for_each(lh, &dev->objectBucket[i].list) { ++ for (i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++) { ++ ylist_for_each(lh, &dev->objectBucket[i].list) { + if (lh) { +- obj = list_entry(lh, yaffs_Object, hashLink); ++ obj = ylist_entry(lh, yaffs_Object, hashLink); + if (!obj->deferedFree) { +- yaffs_ObjectToCheckpointObject(&cp,obj); ++ yaffs_ObjectToCheckpointObject(&cp, obj); + cp.structType = sizeof(cp); + +- T(YAFFS_TRACE_CHECKPOINT,( ++ T(YAFFS_TRACE_CHECKPOINT, ( + TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR), +- cp.objectId,cp.parentId,cp.variantType,cp.chunkId,(unsigned) obj)); ++ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk, (unsigned) obj)); + +- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); + +- if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){ ++ if (ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE) + ok = yaffs_WriteCheckpointTnodes(obj); +- } + } + } + } +- } ++ } + +- /* Dump end of list */ +- memset(&cp,0xFF,sizeof(yaffs_CheckpointObject)); ++ /* Dump end of list */ ++ memset(&cp, 0xFF, sizeof(yaffs_CheckpointObject)); + cp.structType = sizeof(cp); + +- if(ok) +- ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); ++ if (ok) ++ ok = (yaffs_CheckpointWrite(dev, &cp, sizeof(cp)) == sizeof(cp)); + + return ok ? 1 : 0; + } +@@ -4362,38 +4429,39 @@ static int yaffs_ReadCheckpointObjects(y + int done = 0; + yaffs_Object *hardList = NULL; + +- while(ok && !done) { +- ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); +- if(cp.structType != sizeof(cp)) { +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("struct size %d instead of %d ok %d"TENDSTR), +- cp.structType,sizeof(cp),ok)); ++ while (ok && !done) { ++ ok = (yaffs_CheckpointRead(dev, &cp, sizeof(cp)) == sizeof(cp)); ++ if (cp.structType != sizeof(cp)) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("struct size %d instead of %d ok %d"TENDSTR), ++ cp.structType, sizeof(cp), ok)); + ok = 0; + } + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), +- cp.objectId,cp.parentId,cp.variantType,cp.chunkId)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), ++ cp.objectId, cp.parentId, cp.variantType, cp.hdrChunk)); + +- if(ok && cp.objectId == ~0) ++ if (ok && cp.objectId == ~0) + done = 1; +- else if(ok){ +- obj = yaffs_FindOrCreateObjectByNumber(dev,cp.objectId, cp.variantType); +- if(obj) { +- yaffs_CheckpointObjectToObject(obj,&cp); +- if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) { ++ else if (ok) { ++ obj = yaffs_FindOrCreateObjectByNumber(dev, cp.objectId, cp.variantType); ++ if (obj) { ++ ok = yaffs_CheckpointObjectToObject(obj, &cp); ++ if (!ok) ++ break; ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { + ok = yaffs_ReadCheckpointTnodes(obj); +- } else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { ++ } else if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { + obj->hardLinks.next = +- (struct list_head *) +- hardList; ++ (struct ylist_head *) hardList; + hardList = obj; + } +- +- } ++ } else ++ ok = 0; + } + } + +- if(ok) +- yaffs_HardlinkFixup(dev,hardList); ++ if (ok) ++ yaffs_HardlinkFixup(dev, hardList); + + return ok ? 1 : 0; + } +@@ -4403,11 +4471,11 @@ static int yaffs_WriteCheckpointSum(yaff + __u32 checkpointSum; + int ok; + +- yaffs_GetCheckpointSum(dev,&checkpointSum); ++ yaffs_GetCheckpointSum(dev, &checkpointSum); + +- ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum)); ++ ok = (yaffs_CheckpointWrite(dev, &checkpointSum, sizeof(checkpointSum)) == sizeof(checkpointSum)); + +- if(!ok) ++ if (!ok) + return 0; + + return 1; +@@ -4419,14 +4487,14 @@ static int yaffs_ReadCheckpointSum(yaffs + __u32 checkpointSum1; + int ok; + +- yaffs_GetCheckpointSum(dev,&checkpointSum0); ++ yaffs_GetCheckpointSum(dev, &checkpointSum0); + +- ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1)); ++ ok = (yaffs_CheckpointRead(dev, &checkpointSum1, sizeof(checkpointSum1)) == sizeof(checkpointSum1)); + +- if(!ok) ++ if (!ok) + return 0; + +- if(checkpointSum0 != checkpointSum1) ++ if (checkpointSum0 != checkpointSum1) + return 0; + + return 1; +@@ -4435,46 +4503,43 @@ static int yaffs_ReadCheckpointSum(yaffs + + static int yaffs_WriteCheckpointData(yaffs_Device *dev) + { +- + int ok = 1; + +- if(dev->skipCheckpointWrite || !dev->isYaffs2){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR))); ++ if (dev->skipCheckpointWrite || !dev->isYaffs2) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint write" TENDSTR))); + ok = 0; + } + +- if(ok) +- ok = yaffs_CheckpointOpen(dev,1); ++ if (ok) ++ ok = yaffs_CheckpointOpen(dev, 1); + +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); +- ok = yaffs_WriteCheckpointValidityMarker(dev,1); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); ++ ok = yaffs_WriteCheckpointValidityMarker(dev, 1); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint device" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint device" TENDSTR))); + ok = yaffs_WriteCheckpointDevice(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint objects" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint objects" TENDSTR))); + ok = yaffs_WriteCheckpointObjects(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); +- ok = yaffs_WriteCheckpointValidityMarker(dev,0); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("write checkpoint validity" TENDSTR))); ++ ok = yaffs_WriteCheckpointValidityMarker(dev, 0); + } + +- if(ok){ ++ if (ok) + ok = yaffs_WriteCheckpointSum(dev); +- } +- + +- if(!yaffs_CheckpointClose(dev)) +- ok = 0; ++ if (!yaffs_CheckpointClose(dev)) ++ ok = 0; + +- if(ok) +- dev->isCheckpointed = 1; +- else +- dev->isCheckpointed = 0; ++ if (ok) ++ dev->isCheckpointed = 1; ++ else ++ dev->isCheckpointed = 0; + + return dev->isCheckpointed; + } +@@ -4483,43 +4548,43 @@ static int yaffs_ReadCheckpointData(yaff + { + int ok = 1; + +- if(dev->skipCheckpointRead || !dev->isYaffs2){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint read" TENDSTR))); ++ if (dev->skipCheckpointRead || !dev->isYaffs2) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("skipping checkpoint read" TENDSTR))); + ok = 0; + } + +- if(ok) +- ok = yaffs_CheckpointOpen(dev,0); /* open for read */ ++ if (ok) ++ ok = yaffs_CheckpointOpen(dev, 0); /* open for read */ + +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); +- ok = yaffs_ReadCheckpointValidityMarker(dev,1); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); ++ ok = yaffs_ReadCheckpointValidityMarker(dev, 1); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint device" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint device" TENDSTR))); + ok = yaffs_ReadCheckpointDevice(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR))); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint objects" TENDSTR))); + ok = yaffs_ReadCheckpointObjects(dev); + } +- if(ok){ +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); +- ok = yaffs_ReadCheckpointValidityMarker(dev,0); ++ if (ok) { ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint validity" TENDSTR))); ++ ok = yaffs_ReadCheckpointValidityMarker(dev, 0); + } + +- if(ok){ ++ if (ok) { + ok = yaffs_ReadCheckpointSum(dev); +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("read checkpoint checksum %d" TENDSTR), ok)); + } + +- if(!yaffs_CheckpointClose(dev)) ++ if (!yaffs_CheckpointClose(dev)) + ok = 0; + +- if(ok) +- dev->isCheckpointed = 1; +- else +- dev->isCheckpointed = 0; ++ if (ok) ++ dev->isCheckpointed = 1; ++ else ++ dev->isCheckpointed = 0; + + return ok ? 1 : 0; + +@@ -4527,11 +4592,11 @@ static int yaffs_ReadCheckpointData(yaff + + static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) + { +- if(dev->isCheckpointed || +- dev->blocksInCheckpoint > 0){ ++ if (dev->isCheckpointed || ++ dev->blocksInCheckpoint > 0) { + dev->isCheckpointed = 0; + yaffs_CheckpointInvalidateStream(dev); +- if(dev->superBlock && dev->markSuperBlockDirty) ++ if (dev->superBlock && dev->markSuperBlockDirty) + dev->markSuperBlockDirty(dev->superBlock); + } + } +@@ -4540,18 +4605,18 @@ static void yaffs_InvalidateCheckpoint(y + int yaffs_CheckpointSave(yaffs_Device *dev) + { + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("save entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("save entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + yaffs_VerifyObjects(dev); + yaffs_VerifyBlocks(dev); + yaffs_VerifyFreeChunks(dev); + +- if(!dev->isCheckpointed) { ++ if (!dev->isCheckpointed) { + yaffs_InvalidateCheckpoint(dev); + yaffs_WriteCheckpointData(dev); + } + +- T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_ALWAYS, (TSTR("save exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + return dev->isCheckpointed; + } +@@ -4559,17 +4624,17 @@ int yaffs_CheckpointSave(yaffs_Device *d + int yaffs_CheckpointRestore(yaffs_Device *dev) + { + int retval; +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore entry: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + retval = yaffs_ReadCheckpointData(dev); + +- if(dev->isCheckpointed){ ++ if (dev->isCheckpointed) { + yaffs_VerifyObjects(dev); + yaffs_VerifyBlocks(dev); + yaffs_VerifyFreeChunks(dev); + } + +- T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); ++ T(YAFFS_TRACE_CHECKPOINT, (TSTR("restore exit: isCheckpointed %d"TENDSTR), dev->isCheckpointed)); + + return retval; + } +@@ -4584,12 +4649,12 @@ int yaffs_CheckpointRestore(yaffs_Device + * Curve-balls: the first chunk might also be the last chunk. + */ + +-int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset, +- int nBytes) ++int yaffs_ReadDataFromFile(yaffs_Object *in, __u8 *buffer, loff_t offset, ++ int nBytes) + { + + int chunk; +- int start; ++ __u32 start; + int nToCopy; + int n = nBytes; + int nDone = 0; +@@ -4600,27 +4665,26 @@ int yaffs_ReadDataFromFile(yaffs_Object + dev = in->myDev; + + while (n > 0) { +- //chunk = offset / dev->nDataBytesPerChunk + 1; +- //start = offset % dev->nDataBytesPerChunk; +- yaffs_AddrToChunk(dev,offset,&chunk,&start); ++ /* chunk = offset / dev->nDataBytesPerChunk + 1; */ ++ /* start = offset % dev->nDataBytesPerChunk; */ ++ yaffs_AddrToChunk(dev, offset, &chunk, &start); + chunk++; + + /* OK now check for the curveball where the start and end are in + * the same chunk. + */ +- if ((start + n) < dev->nDataBytesPerChunk) { ++ if ((start + n) < dev->nDataBytesPerChunk) + nToCopy = n; +- } else { ++ else + nToCopy = dev->nDataBytesPerChunk - start; +- } + + cache = yaffs_FindChunkCache(in, chunk); + + /* If the chunk is already in the cache or it is less than a whole chunk +- * then use the cache (if there is caching) ++ * or we're using inband tags then use the cache (if there is caching) + * else bypass the cache. + */ +- if (cache || nToCopy != dev->nDataBytesPerChunk) { ++ if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { + if (dev->nShortOpCaches > 0) { + + /* If we can't find the data in the cache, then load it up. */ +@@ -4641,14 +4705,9 @@ int yaffs_ReadDataFromFile(yaffs_Object + + cache->locked = 1; + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + memcpy(buffer, &cache->data[start], nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif + cache->locked = 0; + } else { + /* Read into the local buffer then copy..*/ +@@ -4657,41 +4716,19 @@ int yaffs_ReadDataFromFile(yaffs_Object + yaffs_GetTempBuffer(dev, __LINE__); + yaffs_ReadChunkDataFromObject(in, chunk, + localBuffer); +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + memcpy(buffer, &localBuffer[start], nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif ++ + yaffs_ReleaseTempBuffer(dev, localBuffer, + __LINE__); + } + + } else { +-#ifdef CONFIG_YAFFS_WINCE +- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); +- +- /* Under WinCE can't do direct transfer. Need to use a local buffer. +- * This is because we otherwise screw up WinCE's memory mapper +- */ +- yaffs_ReadChunkDataFromObject(in, chunk, localBuffer); +- +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif +- memcpy(buffer, localBuffer, dev->nDataBytesPerChunk); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); +-#endif +- +-#else + /* A full chunk. Read directly into the supplied buffer. */ + yaffs_ReadChunkDataFromObject(in, chunk, buffer); +-#endif ++ + } + + n -= nToCopy; +@@ -4704,28 +4741,37 @@ int yaffs_ReadDataFromFile(yaffs_Object + return nDone; + } + +-int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, +- int nBytes, int writeThrough) ++int yaffs_WriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset, ++ int nBytes, int writeThrough) + { + + int chunk; +- int start; ++ __u32 start; + int nToCopy; + int n = nBytes; + int nDone = 0; + int nToWriteBack; + int startOfWrite = offset; + int chunkWritten = 0; +- int nBytesRead; ++ __u32 nBytesRead; ++ __u32 chunkStart; + + yaffs_Device *dev; + + dev = in->myDev; + + while (n > 0 && chunkWritten >= 0) { +- //chunk = offset / dev->nDataBytesPerChunk + 1; +- //start = offset % dev->nDataBytesPerChunk; +- yaffs_AddrToChunk(dev,offset,&chunk,&start); ++ /* chunk = offset / dev->nDataBytesPerChunk + 1; */ ++ /* start = offset % dev->nDataBytesPerChunk; */ ++ yaffs_AddrToChunk(dev, offset, &chunk, &start); ++ ++ if (chunk * dev->nDataBytesPerChunk + start != offset || ++ start >= dev->nDataBytesPerChunk) { ++ T(YAFFS_TRACE_ERROR, ( ++ TSTR("AddrToChunk of offset %d gives chunk %d start %d" ++ TENDSTR), ++ (int)offset, chunk, start)); ++ } + chunk++; + + /* OK now check for the curveball where the start and end are in +@@ -4740,25 +4786,32 @@ int yaffs_WriteDataToFile(yaffs_Object * + * we need to write back as much as was there before. + */ + +- nBytesRead = +- in->variant.fileVariant.fileSize - +- ((chunk - 1) * dev->nDataBytesPerChunk); ++ chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk); ++ ++ if (chunkStart > in->variant.fileVariant.fileSize) ++ nBytesRead = 0; /* Past end of file */ ++ else ++ nBytesRead = in->variant.fileVariant.fileSize - chunkStart; + +- if (nBytesRead > dev->nDataBytesPerChunk) { ++ if (nBytesRead > dev->nDataBytesPerChunk) + nBytesRead = dev->nDataBytesPerChunk; +- } + + nToWriteBack = + (nBytesRead > + (start + n)) ? nBytesRead : (start + n); + ++ if (nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk) ++ YBUG(); ++ + } else { + nToCopy = dev->nDataBytesPerChunk - start; + nToWriteBack = dev->nDataBytesPerChunk; + } + +- if (nToCopy != dev->nDataBytesPerChunk) { +- /* An incomplete start or end chunk (or maybe both start and end chunk) */ ++ if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { ++ /* An incomplete start or end chunk (or maybe both start and end chunk), ++ * or we're using inband tags, so we want to use the cache buffers. ++ */ + if (dev->nShortOpCaches > 0) { + yaffs_ChunkCache *cache; + /* If we can't find the data in the cache, then load the cache */ +@@ -4775,10 +4828,9 @@ int yaffs_WriteDataToFile(yaffs_Object * + yaffs_ReadChunkDataFromObject(in, chunk, + cache-> + data); +- } +- else if(cache && +- !cache->dirty && +- !yaffs_CheckSpaceForAllocation(in->myDev)){ ++ } else if (cache && ++ !cache->dirty && ++ !yaffs_CheckSpaceForAllocation(in->myDev)) { + /* Drop the cache if it was a read cache item and + * no space check has been made for it. + */ +@@ -4788,16 +4840,12 @@ int yaffs_WriteDataToFile(yaffs_Object * + if (cache) { + yaffs_UseChunkCache(dev, cache, 1); + cache->locked = 1; +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + + memcpy(&cache->data[start], buffer, + nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif ++ + cache->locked = 0; + cache->nBytes = nToWriteBack; + +@@ -4825,15 +4873,10 @@ int yaffs_WriteDataToFile(yaffs_Object * + yaffs_ReadChunkDataFromObject(in, chunk, + localBuffer); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif ++ + + memcpy(&localBuffer[start], buffer, nToCopy); + +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif + chunkWritten = + yaffs_WriteChunkDataToObject(in, chunk, + localBuffer, +@@ -4846,31 +4889,15 @@ int yaffs_WriteDataToFile(yaffs_Object * + } + + } else { +- +-#ifdef CONFIG_YAFFS_WINCE +- /* Under WinCE can't do direct transfer. Need to use a local buffer. +- * This is because we otherwise screw up WinCE's memory mapper +- */ +- __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_UnlockYAFFS(TRUE); +-#endif +- memcpy(localBuffer, buffer, dev->nDataBytesPerChunk); +-#ifdef CONFIG_YAFFS_WINCE +- yfsd_LockYAFFS(TRUE); +-#endif +- chunkWritten = +- yaffs_WriteChunkDataToObject(in, chunk, localBuffer, +- dev->nDataBytesPerChunk, +- 0); +- yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); +-#else + /* A full chunk. Write directly from the supplied buffer. */ ++ ++ ++ + chunkWritten = + yaffs_WriteChunkDataToObject(in, chunk, buffer, + dev->nDataBytesPerChunk, + 0); +-#endif ++ + /* Since we've overwritten the cached data, we better invalidate it. */ + yaffs_InvalidateChunkCache(in, chunk); + } +@@ -4886,9 +4913,8 @@ int yaffs_WriteDataToFile(yaffs_Object * + + /* Update file object */ + +- if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) { ++ if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) + in->variant.fileVariant.fileSize = (startOfWrite + nDone); +- } + + in->dirty = 1; + +@@ -4898,7 +4924,7 @@ int yaffs_WriteDataToFile(yaffs_Object * + + /* ---------------------- File resizing stuff ------------------ */ + +-static void yaffs_PruneResizedChunks(yaffs_Object * in, int newSize) ++static void yaffs_PruneResizedChunks(yaffs_Object *in, int newSize) + { + + yaffs_Device *dev = in->myDev; +@@ -4939,11 +4965,11 @@ static void yaffs_PruneResizedChunks(yaf + + } + +-int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) ++int yaffs_ResizeFile(yaffs_Object *in, loff_t newSize) + { + + int oldFileSize = in->variant.fileVariant.fileSize; +- int newSizeOfPartialChunk; ++ __u32 newSizeOfPartialChunk; + int newFullChunks; + + yaffs_Device *dev = in->myDev; +@@ -4955,13 +4981,11 @@ int yaffs_ResizeFile(yaffs_Object * in, + + yaffs_CheckGarbageCollection(dev); + +- if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { +- return yaffs_GetFileSize(in); +- } ++ if (in->variantType != YAFFS_OBJECT_TYPE_FILE) ++ return YAFFS_FAIL; + +- if (newSize == oldFileSize) { +- return oldFileSize; +- } ++ if (newSize == oldFileSize) ++ return YAFFS_OK; + + if (newSize < oldFileSize) { + +@@ -4994,21 +5018,20 @@ int yaffs_ResizeFile(yaffs_Object * in, + } + + +- + /* Write a new object header. + * show we've shrunk the file, if need be + * Do this only if the file is not in the deleted directories. + */ +- if (in->parent->objectId != YAFFS_OBJECTID_UNLINKED && +- in->parent->objectId != YAFFS_OBJECTID_DELETED) { ++ if (in->parent && ++ in->parent->objectId != YAFFS_OBJECTID_UNLINKED && ++ in->parent->objectId != YAFFS_OBJECTID_DELETED) + yaffs_UpdateObjectHeader(in, NULL, 0, + (newSize < oldFileSize) ? 1 : 0, 0); +- } + +- return newSize; ++ return YAFFS_OK; + } + +-loff_t yaffs_GetFileSize(yaffs_Object * obj) ++loff_t yaffs_GetFileSize(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); + +@@ -5024,7 +5047,7 @@ loff_t yaffs_GetFileSize(yaffs_Object * + + + +-int yaffs_FlushFile(yaffs_Object * in, int updateTime) ++int yaffs_FlushFile(yaffs_Object *in, int updateTime) + { + int retVal; + if (in->dirty) { +@@ -5039,9 +5062,8 @@ int yaffs_FlushFile(yaffs_Object * in, i + #endif + } + +- retVal = +- (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= +- 0) ? YAFFS_OK : YAFFS_FAIL; ++ retVal = (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= ++ 0) ? YAFFS_OK : YAFFS_FAIL; + } else { + retVal = YAFFS_OK; + } +@@ -5050,7 +5072,7 @@ int yaffs_FlushFile(yaffs_Object * in, i + + } + +-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in) ++static int yaffs_DoGenericObjectDeletion(yaffs_Object *in) + { + + /* First off, invalidate the file's data in the cache, without flushing. */ +@@ -5058,13 +5080,13 @@ static int yaffs_DoGenericObjectDeletion + + if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { + /* Move to the unlinked directory so we have a record that it was deleted. */ +- yaffs_ChangeObjectName(in, in->myDev->deletedDir,"deleted", 0, 0); ++ yaffs_ChangeObjectName(in, in->myDev->deletedDir, _Y("deleted"), 0, 0); + + } + + yaffs_RemoveObjectFromDirectory(in); +- yaffs_DeleteChunk(in->myDev, in->chunkId, 1, __LINE__); +- in->chunkId = -1; ++ yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__); ++ in->hdrChunk = 0; + + yaffs_FreeObject(in); + return YAFFS_OK; +@@ -5075,62 +5097,63 @@ static int yaffs_DoGenericObjectDeletion + * and the inode associated with the file. + * It does not delete the links associated with the file. + */ +-static int yaffs_UnlinkFile(yaffs_Object * in) ++static int yaffs_UnlinkFileIfNeeded(yaffs_Object *in) + { + + int retVal; + int immediateDeletion = 0; + +- if (1) { + #ifdef __KERNEL__ +- if (!in->myInode) { +- immediateDeletion = 1; +- +- } ++ if (!in->myInode) ++ immediateDeletion = 1; + #else +- if (in->inUse <= 0) { +- immediateDeletion = 1; +- +- } ++ if (in->inUse <= 0) ++ immediateDeletion = 1; + #endif +- if (immediateDeletion) { +- retVal = +- yaffs_ChangeObjectName(in, in->myDev->deletedDir, +- "deleted", 0, 0); +- T(YAFFS_TRACE_TRACING, +- (TSTR("yaffs: immediate deletion of file %d" TENDSTR), +- in->objectId)); +- in->deleted = 1; +- in->myDev->nDeletedFiles++; +- if (0 && in->myDev->isYaffs2) { +- yaffs_ResizeFile(in, 0); +- } +- yaffs_SoftDeleteFile(in); +- } else { +- retVal = +- yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, +- "unlinked", 0, 0); +- } + ++ if (immediateDeletion) { ++ retVal = ++ yaffs_ChangeObjectName(in, in->myDev->deletedDir, ++ _Y("deleted"), 0, 0); ++ T(YAFFS_TRACE_TRACING, ++ (TSTR("yaffs: immediate deletion of file %d" TENDSTR), ++ in->objectId)); ++ in->deleted = 1; ++ in->myDev->nDeletedFiles++; ++ if (1 || in->myDev->isYaffs2) ++ yaffs_ResizeFile(in, 0); ++ yaffs_SoftDeleteFile(in); ++ } else { ++ retVal = ++ yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, ++ _Y("unlinked"), 0, 0); + } ++ ++ + return retVal; + } + +-int yaffs_DeleteFile(yaffs_Object * in) ++int yaffs_DeleteFile(yaffs_Object *in) + { + int retVal = YAFFS_OK; ++ int deleted = in->deleted; ++ ++ yaffs_ResizeFile(in, 0); + + if (in->nDataChunks > 0) { +- /* Use soft deletion if there is data in the file */ +- if (!in->unlinked) { +- retVal = yaffs_UnlinkFile(in); +- } ++ /* Use soft deletion if there is data in the file. ++ * That won't be the case if it has been resized to zero. ++ */ ++ if (!in->unlinked) ++ retVal = yaffs_UnlinkFileIfNeeded(in); ++ + if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { + in->deleted = 1; ++ deleted = 1; + in->myDev->nDeletedFiles++; + yaffs_SoftDeleteFile(in); + } +- return in->deleted ? YAFFS_OK : YAFFS_FAIL; ++ return deleted ? YAFFS_OK : YAFFS_FAIL; + } else { + /* The file has no data chunks so we toss it immediately */ + yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top); +@@ -5141,62 +5164,75 @@ int yaffs_DeleteFile(yaffs_Object * in) + } + } + +-static int yaffs_DeleteDirectory(yaffs_Object * in) ++static int yaffs_DeleteDirectory(yaffs_Object *in) + { + /* First check that the directory is empty. */ +- if (list_empty(&in->variant.directoryVariant.children)) { ++ if (ylist_empty(&in->variant.directoryVariant.children)) + return yaffs_DoGenericObjectDeletion(in); +- } + + return YAFFS_FAIL; + + } + +-static int yaffs_DeleteSymLink(yaffs_Object * in) ++static int yaffs_DeleteSymLink(yaffs_Object *in) + { + YFREE(in->variant.symLinkVariant.alias); + + return yaffs_DoGenericObjectDeletion(in); + } + +-static int yaffs_DeleteHardLink(yaffs_Object * in) ++static int yaffs_DeleteHardLink(yaffs_Object *in) + { + /* remove this hardlink from the list assocaited with the equivalent + * object + */ +- list_del(&in->hardLinks); ++ ylist_del_init(&in->hardLinks); + return yaffs_DoGenericObjectDeletion(in); + } + +-static void yaffs_DestroyObject(yaffs_Object * obj) ++int yaffs_DeleteObject(yaffs_Object *obj) + { ++int retVal = -1; + switch (obj->variantType) { + case YAFFS_OBJECT_TYPE_FILE: +- yaffs_DeleteFile(obj); ++ retVal = yaffs_DeleteFile(obj); + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +- yaffs_DeleteDirectory(obj); ++ return yaffs_DeleteDirectory(obj); + break; + case YAFFS_OBJECT_TYPE_SYMLINK: +- yaffs_DeleteSymLink(obj); ++ retVal = yaffs_DeleteSymLink(obj); + break; + case YAFFS_OBJECT_TYPE_HARDLINK: +- yaffs_DeleteHardLink(obj); ++ retVal = yaffs_DeleteHardLink(obj); + break; + case YAFFS_OBJECT_TYPE_SPECIAL: +- yaffs_DoGenericObjectDeletion(obj); ++ retVal = yaffs_DoGenericObjectDeletion(obj); + break; + case YAFFS_OBJECT_TYPE_UNKNOWN: ++ retVal = 0; + break; /* should not happen. */ + } ++ ++ return retVal; + } + +-static int yaffs_UnlinkWorker(yaffs_Object * obj) ++static int yaffs_UnlinkWorker(yaffs_Object *obj) + { + ++ int immediateDeletion = 0; ++ ++#ifdef __KERNEL__ ++ if (!obj->myInode) ++ immediateDeletion = 1; ++#else ++ if (obj->inUse <= 0) ++ immediateDeletion = 1; ++#endif ++ + if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { + return yaffs_DeleteHardLink(obj); +- } else if (!list_empty(&obj->hardLinks)) { ++ } else if (!ylist_empty(&obj->hardLinks)) { + /* Curve ball: We're unlinking an object that has a hardlink. + * + * This problem arises because we are not strictly following +@@ -5215,24 +5251,24 @@ static int yaffs_UnlinkWorker(yaffs_Obje + int retVal; + YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; + +- hl = list_entry(obj->hardLinks.next, yaffs_Object, hardLinks); ++ hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks); + +- list_del_init(&hl->hardLinks); +- list_del_init(&hl->siblings); ++ ylist_del_init(&hl->hardLinks); ++ ylist_del_init(&hl->siblings); + + yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); + + retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0); + +- if (retVal == YAFFS_OK) { ++ if (retVal == YAFFS_OK) + retVal = yaffs_DoGenericObjectDeletion(hl); +- } ++ + return retVal; + +- } else { ++ } else if (immediateDeletion) { + switch (obj->variantType) { + case YAFFS_OBJECT_TYPE_FILE: +- return yaffs_UnlinkFile(obj); ++ return yaffs_DeleteFile(obj); + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: + return yaffs_DeleteDirectory(obj); +@@ -5248,21 +5284,22 @@ static int yaffs_UnlinkWorker(yaffs_Obje + default: + return YAFFS_FAIL; + } +- } ++ } else ++ return yaffs_ChangeObjectName(obj, obj->myDev->unlinkedDir, ++ _Y("unlinked"), 0, 0); + } + + +-static int yaffs_UnlinkObject( yaffs_Object *obj) ++static int yaffs_UnlinkObject(yaffs_Object *obj) + { + +- if (obj && obj->unlinkAllowed) { ++ if (obj && obj->unlinkAllowed) + return yaffs_UnlinkWorker(obj); +- } + + return YAFFS_FAIL; + + } +-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name) ++int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name) + { + yaffs_Object *obj; + +@@ -5272,8 +5309,8 @@ int yaffs_Unlink(yaffs_Object * dir, con + + /*----------------------- Initialisation Scanning ---------------------- */ + +-static void yaffs_HandleShadowedObject(yaffs_Device * dev, int objId, +- int backwardScanning) ++static void yaffs_HandleShadowedObject(yaffs_Device *dev, int objId, ++ int backwardScanning) + { + yaffs_Object *obj; + +@@ -5286,9 +5323,8 @@ static void yaffs_HandleShadowedObject(y + /* Handle YAFFS2 case (backward scanning) + * If the shadowed object exists then ignore. + */ +- if (yaffs_FindObjectByNumber(dev, objId)) { ++ if (yaffs_FindObjectByNumber(dev, objId)) + return; +- } + } + + /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. +@@ -5297,6 +5333,8 @@ static void yaffs_HandleShadowedObject(y + obj = + yaffs_FindOrCreateObjectByNumber(dev, objId, + YAFFS_OBJECT_TYPE_FILE); ++ if (!obj) ++ return; + yaffs_AddObjectToDirectory(dev->unlinkedDir, obj); + obj->variant.fileVariant.shrinkSize = 0; + obj->valid = 1; /* So that we don't read any other info for this file */ +@@ -5325,44 +5363,77 @@ static void yaffs_HardlinkFixup(yaffs_De + if (in) { + /* Add the hardlink pointers */ + hl->variant.hardLinkVariant.equivalentObject = in; +- list_add(&hl->hardLinks, &in->hardLinks); ++ ylist_add(&hl->hardLinks, &in->hardLinks); + } else { + /* Todo Need to report/handle this better. + * Got a problem... hardlink to a non-existant object + */ + hl->variant.hardLinkVariant.equivalentObject = NULL; +- INIT_LIST_HEAD(&hl->hardLinks); ++ YINIT_LIST_HEAD(&hl->hardLinks); + + } +- + } ++} ++ ++ + ++ ++ ++static int ybicmp(const void *a, const void *b) ++{ ++ register int aseq = ((yaffs_BlockIndex *)a)->seq; ++ register int bseq = ((yaffs_BlockIndex *)b)->seq; ++ register int ablock = ((yaffs_BlockIndex *)a)->block; ++ register int bblock = ((yaffs_BlockIndex *)b)->block; ++ if (aseq == bseq) ++ return ablock - bblock; ++ else ++ return aseq - bseq; + } + + ++struct yaffs_ShadowFixerStruct { ++ int objectId; ++ int shadowedId; ++ struct yaffs_ShadowFixerStruct *next; ++}; ++ + ++static void yaffs_StripDeletedObjects(yaffs_Device *dev) ++{ ++ /* ++ * Sort out state of unlinked and deleted objects after scanning. ++ */ ++ struct ylist_head *i; ++ struct ylist_head *n; ++ yaffs_Object *l; + ++ /* Soft delete all the unlinked files */ ++ ylist_for_each_safe(i, n, ++ &dev->unlinkedDir->variant.directoryVariant.children) { ++ if (i) { ++ l = ylist_entry(i, yaffs_Object, siblings); ++ yaffs_DeleteObject(l); ++ } ++ } + +-static int ybicmp(const void *a, const void *b){ +- register int aseq = ((yaffs_BlockIndex *)a)->seq; +- register int bseq = ((yaffs_BlockIndex *)b)->seq; +- register int ablock = ((yaffs_BlockIndex *)a)->block; +- register int bblock = ((yaffs_BlockIndex *)b)->block; +- if( aseq == bseq ) +- return ablock - bblock; +- else +- return aseq - bseq; ++ ylist_for_each_safe(i, n, ++ &dev->deletedDir->variant.directoryVariant.children) { ++ if (i) { ++ l = ylist_entry(i, yaffs_Object, siblings); ++ yaffs_DeleteObject(l); ++ } ++ } + + } + +-static int yaffs_Scan(yaffs_Device * dev) ++static int yaffs_Scan(yaffs_Device *dev) + { + yaffs_ExtendedTags tags; + int blk; + int blockIterator; + int startIterator; + int endIterator; +- int nBlocksToScan = 0; + int result; + + int chunk; +@@ -5371,26 +5442,19 @@ static int yaffs_Scan(yaffs_Device * dev + yaffs_BlockState state; + yaffs_Object *hardList = NULL; + yaffs_BlockInfo *bi; +- int sequenceNumber; ++ __u32 sequenceNumber; + yaffs_ObjectHeader *oh; + yaffs_Object *in; + yaffs_Object *parent; +- int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; + + int alloc_failed = 0; + ++ struct yaffs_ShadowFixerStruct *shadowFixerList = NULL; ++ + + __u8 *chunkData; + +- yaffs_BlockIndex *blockIndex = NULL; + +- if (dev->isYaffs2) { +- T(YAFFS_TRACE_SCAN, +- (TSTR("yaffs_Scan is not for YAFFS2!" TENDSTR))); +- return YAFFS_FAIL; +- } +- +- //TODO Throw all the yaffs2 stuuf out of yaffs_Scan since it is only for yaffs1 format. + + T(YAFFS_TRACE_SCAN, + (TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR), +@@ -5400,12 +5464,6 @@ static int yaffs_Scan(yaffs_Device * dev + + dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; + +- if (dev->isYaffs2) { +- blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); +- if(!blockIndex) +- return YAFFS_FAIL; +- } +- + /* Scan all the blocks to determine their state */ + for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { + bi = yaffs_GetBlockInfo(dev, blk); +@@ -5418,6 +5476,9 @@ static int yaffs_Scan(yaffs_Device * dev + bi->blockState = state; + bi->sequenceNumber = sequenceNumber; + ++ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; ++ + T(YAFFS_TRACE_SCAN_DEBUG, + (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, + state, sequenceNumber)); +@@ -5430,70 +5491,21 @@ static int yaffs_Scan(yaffs_Device * dev + (TSTR("Block empty " TENDSTR))); + dev->nErasedBlocks++; + dev->nFreeChunks += dev->nChunksPerBlock; +- } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { +- +- /* Determine the highest sequence number */ +- if (dev->isYaffs2 && +- sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && +- sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { +- +- blockIndex[nBlocksToScan].seq = sequenceNumber; +- blockIndex[nBlocksToScan].block = blk; +- +- nBlocksToScan++; +- +- if (sequenceNumber >= dev->sequenceNumber) { +- dev->sequenceNumber = sequenceNumber; +- } +- } else if (dev->isYaffs2) { +- /* TODO: Nasty sequence number! */ +- T(YAFFS_TRACE_SCAN, +- (TSTR +- ("Block scanning block %d has bad sequence number %d" +- TENDSTR), blk, sequenceNumber)); +- +- } + } + } + +- /* Sort the blocks +- * Dungy old bubble sort for now... +- */ +- if (dev->isYaffs2) { +- yaffs_BlockIndex temp; +- int i; +- int j; +- +- for (i = 0; i < nBlocksToScan; i++) +- for (j = i + 1; j < nBlocksToScan; j++) +- if (blockIndex[i].seq > blockIndex[j].seq) { +- temp = blockIndex[j]; +- blockIndex[j] = blockIndex[i]; +- blockIndex[i] = temp; +- } +- } +- +- /* Now scan the blocks looking at the data. */ +- if (dev->isYaffs2) { +- startIterator = 0; +- endIterator = nBlocksToScan - 1; +- T(YAFFS_TRACE_SCAN_DEBUG, +- (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); +- } else { +- startIterator = dev->internalStartBlock; +- endIterator = dev->internalEndBlock; +- } ++ startIterator = dev->internalStartBlock; ++ endIterator = dev->internalEndBlock; + + /* For each block.... */ + for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; + blockIterator++) { + +- if (dev->isYaffs2) { +- /* get the block to scan in the correct order */ +- blk = blockIndex[blockIterator].block; +- } else { +- blk = blockIterator; +- } ++ YYIELD(); ++ ++ YYIELD(); ++ ++ blk = blockIterator; + + bi = yaffs_GetBlockInfo(dev, blk); + state = bi->blockState; +@@ -5511,7 +5523,7 @@ static int yaffs_Scan(yaffs_Device * dev + + /* Let's have a good look at this chunk... */ + +- if (!dev->isYaffs2 && tags.chunkDeleted) { ++ if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) { + /* YAFFS1 only... + * A deleted chunk + */ +@@ -5540,18 +5552,6 @@ static int yaffs_Scan(yaffs_Device * dev + dev->allocationBlockFinder = blk; + /* Set it to here to encourage the allocator to go forth from here. */ + +- /* Yaffs2 sanity check: +- * This should be the one with the highest sequence number +- */ +- if (dev->isYaffs2 +- && (dev->sequenceNumber != +- bi->sequenceNumber)) { +- T(YAFFS_TRACE_ALWAYS, +- (TSTR +- ("yaffs: Allocation block %d was not highest sequence id:" +- " block seq = %d, dev seq = %d" +- TENDSTR), blk,bi->sequenceNumber,dev->sequenceNumber)); +- } + } + + dev->nFreeChunks += (dev->nChunksPerBlock - c); +@@ -5570,11 +5570,11 @@ static int yaffs_Scan(yaffs_Device * dev + * the same chunkId). + */ + +- if(!in) ++ if (!in) + alloc_failed = 1; + +- if(in){ +- if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1)) ++ if (in) { ++ if (!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk, 1)) + alloc_failed = 1; + } + +@@ -5617,7 +5617,7 @@ static int yaffs_Scan(yaffs_Device * dev + * deleted, and worse still it has changed type. Delete the old object. + */ + +- yaffs_DestroyObject(in); ++ yaffs_DeleteObject(in); + + in = 0; + } +@@ -5627,14 +5627,20 @@ static int yaffs_Scan(yaffs_Device * dev + objectId, + oh->type); + +- if(!in) ++ if (!in) + alloc_failed = 1; + + if (in && oh->shadowsObject > 0) { +- yaffs_HandleShadowedObject(dev, +- oh-> +- shadowsObject, +- 0); ++ ++ struct yaffs_ShadowFixerStruct *fixer; ++ fixer = YMALLOC(sizeof(struct yaffs_ShadowFixerStruct)); ++ if (fixer) { ++ fixer->next = shadowFixerList; ++ shadowFixerList = fixer; ++ fixer->objectId = tags.objectId; ++ fixer->shadowedId = oh->shadowsObject; ++ } ++ + } + + if (in && in->valid) { +@@ -5643,12 +5649,10 @@ static int yaffs_Scan(yaffs_Device * dev + unsigned existingSerial = in->serial; + unsigned newSerial = tags.serialNumber; + +- if (dev->isYaffs2 || +- ((existingSerial + 1) & 3) == +- newSerial) { ++ if (((existingSerial + 1) & 3) == newSerial) { + /* Use new one - destroy the exisiting one */ + yaffs_DeleteChunk(dev, +- in->chunkId, ++ in->hdrChunk, + 1, __LINE__); + in->valid = 0; + } else { +@@ -5681,7 +5685,8 @@ static int yaffs_Scan(yaffs_Device * dev + in->yst_ctime = oh->yst_ctime; + in->yst_rdev = oh->yst_rdev; + #endif +- in->chunkId = chunk; ++ in->hdrChunk = chunk; ++ in->serial = tags.serialNumber; + + } else if (in && !in->valid) { + /* we need to load this info */ +@@ -5705,7 +5710,8 @@ static int yaffs_Scan(yaffs_Device * dev + in->yst_ctime = oh->yst_ctime; + in->yst_rdev = oh->yst_rdev; + #endif +- in->chunkId = chunk; ++ in->hdrChunk = chunk; ++ in->serial = tags.serialNumber; + + yaffs_SetObjectName(in, oh->name); + in->dirty = 0; +@@ -5718,25 +5724,25 @@ static int yaffs_Scan(yaffs_Device * dev + yaffs_FindOrCreateObjectByNumber + (dev, oh->parentObjectId, + YAFFS_OBJECT_TYPE_DIRECTORY); +- if (parent->variantType == ++ if (!parent) ++ alloc_failed = 1; ++ if (parent && parent->variantType == + YAFFS_OBJECT_TYPE_UNKNOWN) { + /* Set up as a directory */ + parent->variantType = +- YAFFS_OBJECT_TYPE_DIRECTORY; +- INIT_LIST_HEAD(&parent->variant. +- directoryVariant. +- children); +- } else if (parent->variantType != +- YAFFS_OBJECT_TYPE_DIRECTORY) +- { ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ YINIT_LIST_HEAD(&parent->variant. ++ directoryVariant. ++ children); ++ } else if (!parent || parent->variantType != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { + /* Hoosterman, another problem.... + * We're trying to use a non-directory as a directory + */ + + T(YAFFS_TRACE_ERROR, + (TSTR +- ("yaffs tragedy: attempting to use non-directory as" +- " a directory in scan. Put in lost+found." ++ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." + TENDSTR))); + parent = dev->lostNFoundDir; + } +@@ -5760,15 +5766,6 @@ static int yaffs_Scan(yaffs_Device * dev + /* Todo got a problem */ + break; + case YAFFS_OBJECT_TYPE_FILE: +- if (dev->isYaffs2 +- && oh->isShrink) { +- /* Prune back the shrunken chunks */ +- yaffs_PruneResizedChunks +- (in, oh->fileSize); +- /* Mark the block as having a shrinkHeader */ +- bi->hasShrinkHeader = 1; +- } +- + if (dev->useHeaderFileSize) + + in->variant.fileVariant. +@@ -5778,11 +5775,11 @@ static int yaffs_Scan(yaffs_Device * dev + break; + case YAFFS_OBJECT_TYPE_HARDLINK: + in->variant.hardLinkVariant. +- equivalentObjectId = +- oh->equivalentObjectId; ++ equivalentObjectId = ++ oh->equivalentObjectId; + in->hardLinks.next = +- (struct list_head *) +- hardList; ++ (struct ylist_head *) ++ hardList; + hardList = in; + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +@@ -5794,15 +5791,17 @@ static int yaffs_Scan(yaffs_Device * dev + case YAFFS_OBJECT_TYPE_SYMLINK: + in->variant.symLinkVariant.alias = + yaffs_CloneString(oh->alias); +- if(!in->variant.symLinkVariant.alias) ++ if (!in->variant.symLinkVariant.alias) + alloc_failed = 1; + break; + } + ++/* + if (parent == dev->deletedDir) { + yaffs_DestroyObject(in); + bi->hasShrinkHeader = 1; + } ++*/ + } + } + } +@@ -5823,10 +5822,6 @@ static int yaffs_Scan(yaffs_Device * dev + + } + +- if (blockIndex) { +- YFREE(blockIndex); +- } +- + + /* Ok, we've done all the scanning. + * Fix up the hard link chains. +@@ -5834,32 +5829,36 @@ static int yaffs_Scan(yaffs_Device * dev + * hardlinks. + */ + +- yaffs_HardlinkFixup(dev,hardList); ++ yaffs_HardlinkFixup(dev, hardList); + +- /* Handle the unlinked files. Since they were left in an unlinked state we should +- * just delete them. +- */ ++ /* Fix up any shadowed objects */ + { +- struct list_head *i; +- struct list_head *n; ++ struct yaffs_ShadowFixerStruct *fixer; ++ yaffs_Object *obj; + +- yaffs_Object *l; +- /* Soft delete all the unlinked files */ +- list_for_each_safe(i, n, +- &dev->unlinkedDir->variant.directoryVariant. +- children) { +- if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- yaffs_DestroyObject(l); +- } ++ while (shadowFixerList) { ++ fixer = shadowFixerList; ++ shadowFixerList = fixer->next; ++ /* Complete the rename transaction by deleting the shadowed object ++ * then setting the object header to unshadowed. ++ */ ++ obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId); ++ if (obj) ++ yaffs_DeleteObject(obj); ++ ++ obj = yaffs_FindObjectByNumber(dev, fixer->objectId); ++ ++ if (obj) ++ yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); ++ ++ YFREE(fixer); + } + } + + yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); + +- if(alloc_failed){ ++ if (alloc_failed) + return YAFFS_FAIL; +- } + + T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); + +@@ -5871,25 +5870,27 @@ static void yaffs_CheckObjectDetailsLoad + { + __u8 *chunkData; + yaffs_ObjectHeader *oh; +- yaffs_Device *dev = in->myDev; ++ yaffs_Device *dev; + yaffs_ExtendedTags tags; + int result; + int alloc_failed = 0; + +- if(!in) ++ if (!in) + return; + ++ dev = in->myDev; ++ + #if 0 +- T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR), ++ T(YAFFS_TRACE_SCAN, (TSTR("details for object %d %s loaded" TENDSTR), + in->objectId, + in->lazyLoaded ? "not yet" : "already")); + #endif + +- if(in->lazyLoaded){ ++ if (in->lazyLoaded && in->hdrChunk > 0) { + in->lazyLoaded = 0; + chunkData = yaffs_GetTempBuffer(dev, __LINE__); + +- result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags); ++ result = yaffs_ReadChunkWithTagsFromNAND(dev, in->hdrChunk, chunkData, &tags); + oh = (yaffs_ObjectHeader *) chunkData; + + in->yst_mode = oh->yst_mode; +@@ -5911,18 +5912,18 @@ static void yaffs_CheckObjectDetailsLoad + #endif + yaffs_SetObjectName(in, oh->name); + +- if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){ +- in->variant.symLinkVariant.alias = ++ if (in->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { ++ in->variant.symLinkVariant.alias = + yaffs_CloneString(oh->alias); +- if(!in->variant.symLinkVariant.alias) ++ if (!in->variant.symLinkVariant.alias) + alloc_failed = 1; /* Not returned to caller */ + } + +- yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__); ++ yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); + } + } + +-static int yaffs_ScanBackwards(yaffs_Device * dev) ++static int yaffs_ScanBackwards(yaffs_Device *dev) + { + yaffs_ExtendedTags tags; + int blk; +@@ -5938,7 +5939,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + yaffs_BlockState state; + yaffs_Object *hardList = NULL; + yaffs_BlockInfo *bi; +- int sequenceNumber; ++ __u32 sequenceNumber; + yaffs_ObjectHeader *oh; + yaffs_Object *in; + yaffs_Object *parent; +@@ -5972,12 +5973,12 @@ static int yaffs_ScanBackwards(yaffs_Dev + + blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); + +- if(!blockIndex) { ++ if (!blockIndex) { + blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); + altBlockIndex = 1; + } + +- if(!blockIndex) { ++ if (!blockIndex) { + T(YAFFS_TRACE_SCAN, + (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); + return YAFFS_FAIL; +@@ -5999,15 +6000,17 @@ static int yaffs_ScanBackwards(yaffs_Dev + bi->blockState = state; + bi->sequenceNumber = sequenceNumber; + +- if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) ++ if (bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) + bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; ++ if (bi->sequenceNumber == YAFFS_SEQUENCE_BAD_BLOCK) ++ bi->blockState = state = YAFFS_BLOCK_STATE_DEAD; + + T(YAFFS_TRACE_SCAN_DEBUG, + (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, + state, sequenceNumber)); + + +- if(state == YAFFS_BLOCK_STATE_CHECKPOINT){ ++ if (state == YAFFS_BLOCK_STATE_CHECKPOINT) { + dev->blocksInCheckpoint++; + + } else if (state == YAFFS_BLOCK_STATE_DEAD) { +@@ -6021,8 +6024,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { + + /* Determine the highest sequence number */ +- if (dev->isYaffs2 && +- sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && ++ if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && + sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { + + blockIndex[nBlocksToScan].seq = sequenceNumber; +@@ -6030,10 +6032,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + + nBlocksToScan++; + +- if (sequenceNumber >= dev->sequenceNumber) { ++ if (sequenceNumber >= dev->sequenceNumber) + dev->sequenceNumber = sequenceNumber; +- } +- } else if (dev->isYaffs2) { ++ } else { + /* TODO: Nasty sequence number! */ + T(YAFFS_TRACE_SCAN, + (TSTR +@@ -6053,11 +6054,13 @@ static int yaffs_ScanBackwards(yaffs_Dev + + /* Sort the blocks */ + #ifndef CONFIG_YAFFS_USE_OWN_SORT +- yaffs_qsort(blockIndex, nBlocksToScan, +- sizeof(yaffs_BlockIndex), ybicmp); ++ { ++ /* Use qsort now. */ ++ yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp); ++ } + #else + { +- /* Dungy old bubble sort... */ ++ /* Dungy old bubble sort... */ + + yaffs_BlockIndex temp; + int i; +@@ -6075,7 +6078,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + + YYIELD(); + +- T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); ++ T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); + + /* Now scan the blocks looking at the data. */ + startIterator = 0; +@@ -6085,10 +6088,10 @@ static int yaffs_ScanBackwards(yaffs_Dev + + /* For each block.... backwards */ + for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; +- blockIterator--) { +- /* Cooperative multitasking! This loop can run for so ++ blockIterator--) { ++ /* Cooperative multitasking! This loop can run for so + long that watchdog timers expire. */ +- YYIELD(); ++ YYIELD(); + + /* get the block to scan in the correct order */ + blk = blockIndex[blockIterator].block; +@@ -6127,10 +6130,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + * this is the one being allocated from + */ + +- if(foundChunksInBlock) +- { ++ if (foundChunksInBlock) { + /* This is a chunk that was skipped due to failing the erased check */ +- + } else if (c == 0) { + /* We're looking at the first chunk in the block so the block is unused */ + state = YAFFS_BLOCK_STATE_EMPTY; +@@ -6138,7 +6139,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + } else { + if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || + state == YAFFS_BLOCK_STATE_ALLOCATING) { +- if(dev->sequenceNumber == bi->sequenceNumber) { ++ if (dev->sequenceNumber == bi->sequenceNumber) { + /* this is the block being allocated from */ + + T(YAFFS_TRACE_SCAN, +@@ -6150,27 +6151,31 @@ static int yaffs_ScanBackwards(yaffs_Dev + dev->allocationBlock = blk; + dev->allocationPage = c; + dev->allocationBlockFinder = blk; +- } +- else { ++ } else { + /* This is a partially written block that is not + * the current allocation block. This block must have + * had a write failure, so set up for retirement. + */ + +- bi->needsRetiring = 1; ++ /* bi->needsRetiring = 1; ??? TODO */ + bi->gcPrioritise = 1; + + T(YAFFS_TRACE_ALWAYS, +- (TSTR("Partially written block %d being set for retirement" TENDSTR), ++ (TSTR("Partially written block %d detected" TENDSTR), + blk)); + } +- + } +- + } + + dev->nFreeChunks++; + ++ } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED) { ++ T(YAFFS_TRACE_SCAN, ++ (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), ++ blk, c)); ++ ++ dev->nFreeChunks++; ++ + } else if (tags.chunkId > 0) { + /* chunkId > 0 so it is a data chunk... */ + unsigned int endpos; +@@ -6187,7 +6192,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + tags. + objectId, + YAFFS_OBJECT_TYPE_FILE); +- if(!in){ ++ if (!in) { + /* Out of memory */ + alloc_failed = 1; + } +@@ -6197,8 +6202,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + && chunkBase < + in->variant.fileVariant.shrinkSize) { + /* This has not been invalidated by a resize */ +- if(!yaffs_PutChunkIntoFile(in, tags.chunkId, +- chunk, -1)){ ++ if (!yaffs_PutChunkIntoFile(in, tags.chunkId, ++ chunk, -1)) { + alloc_failed = 1; + } + +@@ -6221,7 +6226,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + scannedFileSize; + } + +- } else if(in) { ++ } else if (in) { + /* This chunk has been invalidated by a resize, so delete */ + yaffs_DeleteChunk(dev, chunk, 1, __LINE__); + +@@ -6242,6 +6247,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + in = yaffs_FindOrCreateObjectByNumber + (dev, tags.objectId, + tags.extraObjectType); ++ if (!in) ++ alloc_failed = 1; + } + + if (!in || +@@ -6251,8 +6258,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + tags.extraShadows || + (!in->valid && + (tags.objectId == YAFFS_OBJECTID_ROOT || +- tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) +- ) { ++ tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))) { + + /* If we don't have valid info then we need to read the chunk + * TODO In future we can probably defer reading the chunk and +@@ -6266,8 +6272,17 @@ static int yaffs_ScanBackwards(yaffs_Dev + + oh = (yaffs_ObjectHeader *) chunkData; + +- if (!in) ++ if (dev->inbandTags) { ++ /* Fix up the header if they got corrupted by inband tags */ ++ oh->shadowsObject = oh->inbandShadowsObject; ++ oh->isShrink = oh->inbandIsShrink; ++ } ++ ++ if (!in) { + in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); ++ if (!in) ++ alloc_failed = 1; ++ } + + } + +@@ -6275,10 +6290,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + /* TODO Hoosterman we have a problem! */ + T(YAFFS_TRACE_ERROR, + (TSTR +- ("yaffs tragedy: Could not make object for object %d " +- "at chunk %d during scan" ++ ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" + TENDSTR), tags.objectId, chunk)); +- ++ continue; + } + + if (in->valid) { +@@ -6289,10 +6303,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + + if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && + ((oh && +- oh-> type == YAFFS_OBJECT_TYPE_FILE)|| ++ oh->type == YAFFS_OBJECT_TYPE_FILE) || + (tags.extraHeaderInfoAvailable && +- tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE)) +- ) { ++ tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))) { + __u32 thisSize = + (oh) ? oh->fileSize : tags. + extraFileLength; +@@ -6300,7 +6313,9 @@ static int yaffs_ScanBackwards(yaffs_Dev + (oh) ? oh-> + parentObjectId : tags. + extraParentObjectId; +- unsigned isShrink = ++ ++ ++ isShrink = + (oh) ? oh->isShrink : tags. + extraIsShrinkHeader; + +@@ -6323,9 +6338,8 @@ static int yaffs_ScanBackwards(yaffs_Dev + thisSize; + } + +- if (isShrink) { ++ if (isShrink) + bi->hasShrinkHeader = 1; +- } + + } + /* Use existing - destroy this one. */ +@@ -6333,6 +6347,17 @@ static int yaffs_ScanBackwards(yaffs_Dev + + } + ++ if (!in->valid && in->variantType != ++ (oh ? oh->type : tags.extraObjectType)) ++ T(YAFFS_TRACE_ERROR, ( ++ TSTR("yaffs tragedy: Bad object type, " ++ TCONT("%d != %d, for object %d at chunk ") ++ TCONT("%d during scan") ++ TENDSTR), oh ? ++ oh->type : tags.extraObjectType, ++ in->variantType, tags.objectId, ++ chunk)); ++ + if (!in->valid && + (tags.objectId == YAFFS_OBJECTID_ROOT || + tags.objectId == +@@ -6340,7 +6365,7 @@ static int yaffs_ScanBackwards(yaffs_Dev + /* We only load some info, don't fiddle with directory structure */ + in->valid = 1; + +- if(oh) { ++ if (oh) { + in->variantType = oh->type; + + in->yst_mode = oh->yst_mode; +@@ -6365,15 +6390,15 @@ static int yaffs_ScanBackwards(yaffs_Dev + in->lazyLoaded = 1; + } + +- in->chunkId = chunk; ++ in->hdrChunk = chunk; + + } else if (!in->valid) { + /* we need to load this info */ + + in->valid = 1; +- in->chunkId = chunk; ++ in->hdrChunk = chunk; + +- if(oh) { ++ if (oh) { + in->variantType = oh->type; + + in->yst_mode = oh->yst_mode; +@@ -6403,20 +6428,19 @@ static int yaffs_ScanBackwards(yaffs_Dev + yaffs_SetObjectName(in, oh->name); + parent = + yaffs_FindOrCreateObjectByNumber +- (dev, oh->parentObjectId, +- YAFFS_OBJECT_TYPE_DIRECTORY); ++ (dev, oh->parentObjectId, ++ YAFFS_OBJECT_TYPE_DIRECTORY); + + fileSize = oh->fileSize; +- isShrink = oh->isShrink; ++ isShrink = oh->isShrink; + equivalentObjectId = oh->equivalentObjectId; + +- } +- else { ++ } else { + in->variantType = tags.extraObjectType; + parent = + yaffs_FindOrCreateObjectByNumber +- (dev, tags.extraParentObjectId, +- YAFFS_OBJECT_TYPE_DIRECTORY); ++ (dev, tags.extraParentObjectId, ++ YAFFS_OBJECT_TYPE_DIRECTORY); + fileSize = tags.extraFileLength; + isShrink = tags.extraIsShrinkHeader; + equivalentObjectId = tags.extraEquivalentObjectId; +@@ -6425,29 +6449,30 @@ static int yaffs_ScanBackwards(yaffs_Dev + } + in->dirty = 0; + ++ if (!parent) ++ alloc_failed = 1; ++ + /* directory stuff... + * hook up to parent + */ + +- if (parent->variantType == ++ if (parent && parent->variantType == + YAFFS_OBJECT_TYPE_UNKNOWN) { + /* Set up as a directory */ + parent->variantType = +- YAFFS_OBJECT_TYPE_DIRECTORY; +- INIT_LIST_HEAD(&parent->variant. +- directoryVariant. +- children); +- } else if (parent->variantType != +- YAFFS_OBJECT_TYPE_DIRECTORY) +- { ++ YAFFS_OBJECT_TYPE_DIRECTORY; ++ YINIT_LIST_HEAD(&parent->variant. ++ directoryVariant. ++ children); ++ } else if (!parent || parent->variantType != ++ YAFFS_OBJECT_TYPE_DIRECTORY) { + /* Hoosterman, another problem.... + * We're trying to use a non-directory as a directory + */ + + T(YAFFS_TRACE_ERROR, + (TSTR +- ("yaffs tragedy: attempting to use non-directory as" +- " a directory in scan. Put in lost+found." ++ ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." + TENDSTR))); + parent = dev->lostNFoundDir; + } +@@ -6494,12 +6519,12 @@ static int yaffs_ScanBackwards(yaffs_Dev + + break; + case YAFFS_OBJECT_TYPE_HARDLINK: +- if(!itsUnlinked) { +- in->variant.hardLinkVariant.equivalentObjectId = +- equivalentObjectId; +- in->hardLinks.next = +- (struct list_head *) hardList; +- hardList = in; ++ if (!itsUnlinked) { ++ in->variant.hardLinkVariant.equivalentObjectId = ++ equivalentObjectId; ++ in->hardLinks.next = ++ (struct ylist_head *) hardList; ++ hardList = in; + } + break; + case YAFFS_OBJECT_TYPE_DIRECTORY: +@@ -6509,12 +6534,11 @@ static int yaffs_ScanBackwards(yaffs_Dev + /* Do nothing */ + break; + case YAFFS_OBJECT_TYPE_SYMLINK: +- if(oh){ +- in->variant.symLinkVariant.alias = +- yaffs_CloneString(oh-> +- alias); +- if(!in->variant.symLinkVariant.alias) +- alloc_failed = 1; ++ if (oh) { ++ in->variant.symLinkVariant.alias = ++ yaffs_CloneString(oh->alias); ++ if (!in->variant.symLinkVariant.alias) ++ alloc_failed = 1; + } + break; + } +@@ -6551,75 +6575,129 @@ static int yaffs_ScanBackwards(yaffs_Dev + * We should now have scanned all the objects, now it's time to add these + * hardlinks. + */ +- yaffs_HardlinkFixup(dev,hardList); ++ yaffs_HardlinkFixup(dev, hardList); + + +- /* +- * Sort out state of unlinked and deleted objects. +- */ +- { +- struct list_head *i; +- struct list_head *n; ++ yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); + +- yaffs_Object *l; ++ if (alloc_failed) ++ return YAFFS_FAIL; + +- /* Soft delete all the unlinked files */ +- list_for_each_safe(i, n, +- &dev->unlinkedDir->variant.directoryVariant. +- children) { +- if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- yaffs_DestroyObject(l); +- } +- } ++ T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); + +- /* Soft delete all the deletedDir files */ +- list_for_each_safe(i, n, +- &dev->deletedDir->variant.directoryVariant. +- children) { +- if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- yaffs_DestroyObject(l); ++ return YAFFS_OK; ++} + +- } ++/*------------------------------ Directory Functions ----------------------------- */ ++ ++static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj) ++{ ++ struct ylist_head *lh; ++ yaffs_Object *listObj; ++ ++ int count = 0; ++ ++ if (!obj) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("No object to verify" TENDSTR))); ++ YBUG(); ++ return; ++ } ++ ++ if (yaffs_SkipVerification(obj->myDev)) ++ return; ++ ++ if (!obj->parent) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object does not have parent" TENDSTR))); ++ YBUG(); ++ return; ++ } ++ ++ if (obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Parent is not directory" TENDSTR))); ++ YBUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) { ++ if (lh) { ++ listObj = ylist_entry(lh, yaffs_Object, siblings); ++ yaffs_VerifyObject(listObj); ++ if (obj == listObj) ++ count++; + } ++ } ++ ++ if (count != 1) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory %d times" TENDSTR), count)); ++ YBUG(); + } ++} + +- yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); ++static void yaffs_VerifyDirectory(yaffs_Object *directory) ++{ ++ struct ylist_head *lh; ++ yaffs_Object *listObj; + +- if(alloc_failed){ +- return YAFFS_FAIL; ++ if (!directory) { ++ YBUG(); ++ return; + } + +- T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); ++ if (yaffs_SkipFullVerification(directory->myDev)) ++ return; + +- return YAFFS_OK; ++ if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Directory has wrong type: %d" TENDSTR), directory->variantType)); ++ YBUG(); ++ } ++ ++ /* Iterate through the objects in each hash entry */ ++ ++ ylist_for_each(lh, &directory->variant.directoryVariant.children) { ++ if (lh) { ++ listObj = ylist_entry(lh, yaffs_Object, siblings); ++ if (listObj->parent != directory) { ++ T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR), listObj->parent)); ++ YBUG(); ++ } ++ yaffs_VerifyObjectInDirectory(listObj); ++ } ++ } + } + +-/*------------------------------ Directory Functions ----------------------------- */ + +-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj) ++static void yaffs_RemoveObjectFromDirectory(yaffs_Object *obj) + { + yaffs_Device *dev = obj->myDev; ++ yaffs_Object *parent; ++ ++ yaffs_VerifyObjectInDirectory(obj); ++ parent = obj->parent; ++ ++ yaffs_VerifyDirectory(parent); + +- if(dev && dev->removeObjectCallback) ++ if (dev && dev->removeObjectCallback) + dev->removeObjectCallback(obj); + +- list_del_init(&obj->siblings); ++ ++ ylist_del_init(&obj->siblings); + obj->parent = NULL; ++ ++ yaffs_VerifyDirectory(parent); + } + + +-static void yaffs_AddObjectToDirectory(yaffs_Object * directory, +- yaffs_Object * obj) ++static void yaffs_AddObjectToDirectory(yaffs_Object *directory, ++ yaffs_Object *obj) + { +- + if (!directory) { + T(YAFFS_TRACE_ALWAYS, + (TSTR + ("tragedy: Trying to add an object to a null pointer directory" + TENDSTR))); + YBUG(); ++ return; + } + if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, +@@ -6631,37 +6709,42 @@ static void yaffs_AddObjectToDirectory(y + + if (obj->siblings.prev == NULL) { + /* Not initialised */ +- INIT_LIST_HEAD(&obj->siblings); +- +- } else if (!list_empty(&obj->siblings)) { +- /* If it is holed up somewhere else, un hook it */ +- yaffs_RemoveObjectFromDirectory(obj); ++ YBUG(); + } ++ ++ ++ yaffs_VerifyDirectory(directory); ++ ++ yaffs_RemoveObjectFromDirectory(obj); ++ ++ + /* Now add it */ +- list_add(&obj->siblings, &directory->variant.directoryVariant.children); ++ ylist_add(&obj->siblings, &directory->variant.directoryVariant.children); + obj->parent = directory; + + if (directory == obj->myDev->unlinkedDir +- || directory == obj->myDev->deletedDir) { ++ || directory == obj->myDev->deletedDir) { + obj->unlinked = 1; + obj->myDev->nUnlinkedFiles++; + obj->renameAllowed = 0; + } ++ ++ yaffs_VerifyDirectory(directory); ++ yaffs_VerifyObjectInDirectory(obj); + } + +-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, +- const YCHAR * name) ++yaffs_Object *yaffs_FindObjectByName(yaffs_Object *directory, ++ const YCHAR *name) + { + int sum; + +- struct list_head *i; ++ struct ylist_head *i; + YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; + + yaffs_Object *l; + +- if (!name) { ++ if (!name) + return NULL; +- } + + if (!directory) { + T(YAFFS_TRACE_ALWAYS, +@@ -6669,6 +6752,7 @@ yaffs_Object *yaffs_FindObjectByName(yaf + ("tragedy: yaffs_FindObjectByName: null pointer directory" + TENDSTR))); + YBUG(); ++ return NULL; + } + if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, +@@ -6679,28 +6763,27 @@ yaffs_Object *yaffs_FindObjectByName(yaf + + sum = yaffs_CalcNameSum(name); + +- list_for_each(i, &directory->variant.directoryVariant.children) { ++ ylist_for_each(i, &directory->variant.directoryVariant.children) { + if (i) { +- l = list_entry(i, yaffs_Object, siblings); ++ l = ylist_entry(i, yaffs_Object, siblings); ++ ++ if (l->parent != directory) ++ YBUG(); + + yaffs_CheckObjectDetailsLoaded(l); + + /* Special case for lost-n-found */ + if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) { +- if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) { ++ if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) + return l; +- } +- } else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0) +- { +- /* LostnFound cunk called Objxxx ++ } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0) { ++ /* LostnFound chunk called Objxxx + * Do a real check + */ + yaffs_GetObjectName(l, buffer, + YAFFS_MAX_NAME_LENGTH); +- if (yaffs_strncmp(name, buffer,YAFFS_MAX_NAME_LENGTH) == 0) { ++ if (yaffs_strncmp(name, buffer, YAFFS_MAX_NAME_LENGTH) == 0) + return l; +- } +- + } + } + } +@@ -6710,10 +6793,10 @@ yaffs_Object *yaffs_FindObjectByName(yaf + + + #if 0 +-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, +- int (*fn) (yaffs_Object *)) ++int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, ++ int (*fn) (yaffs_Object *)) + { +- struct list_head *i; ++ struct ylist_head *i; + yaffs_Object *l; + + if (!theDir) { +@@ -6722,20 +6805,21 @@ int yaffs_ApplyToDirectoryChildren(yaffs + ("tragedy: yaffs_FindObjectByName: null pointer directory" + TENDSTR))); + YBUG(); ++ return YAFFS_FAIL; + } + if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { + T(YAFFS_TRACE_ALWAYS, + (TSTR + ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); + YBUG(); ++ return YAFFS_FAIL; + } + +- list_for_each(i, &theDir->variant.directoryVariant.children) { ++ ylist_for_each(i, &theDir->variant.directoryVariant.children) { + if (i) { +- l = list_entry(i, yaffs_Object, siblings); +- if (l && !fn(l)) { ++ l = ylist_entry(i, yaffs_Object, siblings); ++ if (l && !fn(l)) + return YAFFS_FAIL; +- } + } + } + +@@ -6748,7 +6832,7 @@ int yaffs_ApplyToDirectoryChildren(yaffs + * actual object. + */ + +-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj) ++yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj) + { + if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { + /* We want the object id of the equivalent object, not this one */ +@@ -6756,10 +6840,9 @@ yaffs_Object *yaffs_GetEquivalentObject( + yaffs_CheckObjectDetailsLoaded(obj); + } + return obj; +- + } + +-int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize) ++int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize) + { + memset(name, 0, buffSize * sizeof(YCHAR)); + +@@ -6767,18 +6850,26 @@ int yaffs_GetObjectName(yaffs_Object * o + + if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { + yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1); +- } else if (obj->chunkId <= 0) { ++ } else if (obj->hdrChunk <= 0) { + YCHAR locName[20]; ++ YCHAR numString[20]; ++ YCHAR *x = &numString[19]; ++ unsigned v = obj->objectId; ++ numString[19] = 0; ++ while (v > 0) { ++ x--; ++ *x = '0' + (v % 10); ++ v /= 10; ++ } + /* make up a name */ +- yaffs_sprintf(locName, _Y("%s%d"), YAFFS_LOSTNFOUND_PREFIX, +- obj->objectId); ++ yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX); ++ yaffs_strcat(locName, x); + yaffs_strncpy(name, locName, buffSize - 1); + + } + #ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM +- else if (obj->shortName[0]) { ++ else if (obj->shortName[0]) + yaffs_strcpy(name, obj->shortName); +- } + #endif + else { + int result; +@@ -6788,9 +6879,9 @@ int yaffs_GetObjectName(yaffs_Object * o + + memset(buffer, 0, obj->myDev->nDataBytesPerChunk); + +- if (obj->chunkId >= 0) { ++ if (obj->hdrChunk > 0) { + result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev, +- obj->chunkId, buffer, ++ obj->hdrChunk, buffer, + NULL); + } + yaffs_strncpy(name, oh->name, buffSize - 1); +@@ -6801,46 +6892,43 @@ int yaffs_GetObjectName(yaffs_Object * o + return yaffs_strlen(name); + } + +-int yaffs_GetObjectFileLength(yaffs_Object * obj) ++int yaffs_GetObjectFileLength(yaffs_Object *obj) + { +- + /* Dereference any hard linking */ + obj = yaffs_GetEquivalentObject(obj); + +- if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { ++ if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) + return obj->variant.fileVariant.fileSize; +- } +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { ++ if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) + return yaffs_strlen(obj->variant.symLinkVariant.alias); +- } else { ++ else { + /* Only a directory should drop through to here */ + return obj->myDev->nDataBytesPerChunk; + } + } + +-int yaffs_GetObjectLinkCount(yaffs_Object * obj) ++int yaffs_GetObjectLinkCount(yaffs_Object *obj) + { + int count = 0; +- struct list_head *i; ++ struct ylist_head *i; + +- if (!obj->unlinked) { +- count++; /* the object itself */ +- } +- list_for_each(i, &obj->hardLinks) { +- count++; /* add the hard links; */ +- } +- return count; ++ if (!obj->unlinked) ++ count++; /* the object itself */ ++ ++ ylist_for_each(i, &obj->hardLinks) ++ count++; /* add the hard links; */ + ++ return count; + } + +-int yaffs_GetObjectInode(yaffs_Object * obj) ++int yaffs_GetObjectInode(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); + + return obj->objectId; + } + +-unsigned yaffs_GetObjectType(yaffs_Object * obj) ++unsigned yaffs_GetObjectType(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); + +@@ -6872,19 +6960,18 @@ unsigned yaffs_GetObjectType(yaffs_Objec + } + } + +-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj) ++YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj) + { + obj = yaffs_GetEquivalentObject(obj); +- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { ++ if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) + return yaffs_CloneString(obj->variant.symLinkVariant.alias); +- } else { ++ else + return yaffs_CloneString(_Y("")); +- } + } + + #ifndef CONFIG_YAFFS_WINCE + +-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr) ++int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr) + { + unsigned int valid = attr->ia_valid; + +@@ -6910,7 +6997,7 @@ int yaffs_SetAttributes(yaffs_Object * o + return YAFFS_OK; + + } +-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr) ++int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr) + { + unsigned int valid = 0; + +@@ -6934,13 +7021,12 @@ int yaffs_GetAttributes(yaffs_Object * o + attr->ia_valid = valid; + + return YAFFS_OK; +- + } + + #endif + + #if 0 +-int yaffs_DumpObject(yaffs_Object * obj) ++int yaffs_DumpObject(yaffs_Object *obj) + { + YCHAR name[257]; + +@@ -6951,7 +7037,7 @@ int yaffs_DumpObject(yaffs_Object * obj) + ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d" + " chunk %d type %d size %d\n" + TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name, +- obj->dirty, obj->valid, obj->serial, obj->sum, obj->chunkId, ++ obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk, + yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj))); + + return YAFFS_OK; +@@ -6960,7 +7046,7 @@ int yaffs_DumpObject(yaffs_Object * obj) + + /*---------------------------- Initialisation code -------------------------------------- */ + +-static int yaffs_CheckDevFunctions(const yaffs_Device * dev) ++static int yaffs_CheckDevFunctions(const yaffs_Device *dev) + { + + /* Common functions, gotta have */ +@@ -7011,7 +7097,7 @@ static int yaffs_CreateInitialDirectorie + yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, + YAFFS_LOSTNFOUND_MODE | S_IFDIR); + +- if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){ ++ if (dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir) { + yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); + return YAFFS_OK; + } +@@ -7019,7 +7105,7 @@ static int yaffs_CreateInitialDirectorie + return YAFFS_FAIL; + } + +-int yaffs_GutsInitialise(yaffs_Device * dev) ++int yaffs_GutsInitialise(yaffs_Device *dev) + { + int init_failed = 0; + unsigned x; +@@ -7040,6 +7126,8 @@ int yaffs_GutsInitialise(yaffs_Device * + dev->chunkOffset = 0; + dev->nFreeChunks = 0; + ++ dev->gcBlock = -1; ++ + if (dev->startBlock == 0) { + dev->internalStartBlock = dev->startBlock + 1; + dev->internalEndBlock = dev->endBlock + 1; +@@ -7049,18 +7137,18 @@ int yaffs_GutsInitialise(yaffs_Device * + + /* Check geometry parameters. */ + +- if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || +- (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || ++ if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) || ++ (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) || ++ (dev->inbandTags && !dev->isYaffs2) || + dev->nChunksPerBlock < 2 || + dev->nReservedBlocks < 2 || + dev->internalStartBlock <= 0 || + dev->internalEndBlock <= 0 || +- dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2) // otherwise it is too small +- ) { ++ dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)) { /* otherwise it is too small */ + T(YAFFS_TRACE_ALWAYS, + (TSTR +- ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s " +- TENDSTR), dev->nDataBytesPerChunk, dev->isYaffs2 ? "2" : "")); ++ ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d " ++ TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags)); + return YAFFS_FAIL; + } + +@@ -7070,6 +7158,12 @@ int yaffs_GutsInitialise(yaffs_Device * + return YAFFS_FAIL; + } + ++ /* Sort out space for inband tags, if required */ ++ if (dev->inbandTags) ++ dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart); ++ else ++ dev->nDataBytesPerChunk = dev->totalBytesPerChunk; ++ + /* Got the right mix of functions? */ + if (!yaffs_CheckDevFunctions(dev)) { + /* Function missing */ +@@ -7097,31 +7191,18 @@ int yaffs_GutsInitialise(yaffs_Device * + + dev->isMounted = 1; + +- +- + /* OK now calculate a few things for the device */ + + /* + * Calculate all the chunk size manipulation numbers: + */ +- /* Start off assuming it is a power of 2 */ +- dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk); +- dev->chunkMask = (1<<dev->chunkShift) - 1; +- +- if(dev->nDataBytesPerChunk == (dev->chunkMask + 1)){ +- /* Yes it is a power of 2, disable crumbs */ +- dev->crumbMask = 0; +- dev->crumbShift = 0; +- dev->crumbsPerChunk = 0; +- } else { +- /* Not a power of 2, use crumbs instead */ +- dev->crumbShift = ShiftDiv(sizeof(yaffs_PackedTags2TagsPart)); +- dev->crumbMask = (1<<dev->crumbShift)-1; +- dev->crumbsPerChunk = dev->nDataBytesPerChunk/(1 << dev->crumbShift); +- dev->chunkShift = 0; +- dev->chunkMask = 0; +- } +- ++ x = dev->nDataBytesPerChunk; ++ /* We always use dev->chunkShift and dev->chunkDiv */ ++ dev->chunkShift = Shifts(x); ++ x >>= dev->chunkShift; ++ dev->chunkDiv = x; ++ /* We only use chunk mask if chunkDiv is 1 */ ++ dev->chunkMask = (1<<dev->chunkShift) - 1; + + /* + * Calculate chunkGroupBits. +@@ -7133,16 +7214,15 @@ int yaffs_GutsInitialise(yaffs_Device * + bits = ShiftsGE(x); + + /* Set up tnode width if wide tnodes are enabled. */ +- if(!dev->wideTnodesDisabled){ ++ if (!dev->wideTnodesDisabled) { + /* bits must be even so that we end up with 32-bit words */ +- if(bits & 1) ++ if (bits & 1) + bits++; +- if(bits < 16) ++ if (bits < 16) + dev->tnodeWidth = 16; + else + dev->tnodeWidth = bits; +- } +- else ++ } else + dev->tnodeWidth = 16; + + dev->tnodeMask = (1<<dev->tnodeWidth)-1; +@@ -7193,7 +7273,7 @@ int yaffs_GutsInitialise(yaffs_Device * + dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */ + + /* Initialise temporary buffers and caches. */ +- if(!yaffs_InitialiseTempBuffers(dev)) ++ if (!yaffs_InitialiseTempBuffers(dev)) + init_failed = 1; + + dev->srCache = NULL; +@@ -7203,25 +7283,26 @@ int yaffs_GutsInitialise(yaffs_Device * + if (!init_failed && + dev->nShortOpCaches > 0) { + int i; +- __u8 *buf; ++ void *buf; + int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); + +- if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) { ++ if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) + dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES; +- } + +- buf = dev->srCache = YMALLOC(srCacheBytes); ++ dev->srCache = YMALLOC(srCacheBytes); + +- if(dev->srCache) +- memset(dev->srCache,0,srCacheBytes); ++ buf = (__u8 *) dev->srCache; ++ ++ if (dev->srCache) ++ memset(dev->srCache, 0, srCacheBytes); + + for (i = 0; i < dev->nShortOpCaches && buf; i++) { + dev->srCache[i].object = NULL; + dev->srCache[i].lastUse = 0; + dev->srCache[i].dirty = 0; +- dev->srCache[i].data = buf = YMALLOC_DMA(dev->nDataBytesPerChunk); ++ dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk); + } +- if(!buf) ++ if (!buf) + init_failed = 1; + + dev->srLastUse = 0; +@@ -7229,29 +7310,30 @@ int yaffs_GutsInitialise(yaffs_Device * + + dev->cacheHits = 0; + +- if(!init_failed){ ++ if (!init_failed) { + dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); +- if(!dev->gcCleanupList) ++ if (!dev->gcCleanupList) + init_failed = 1; + } + +- if (dev->isYaffs2) { ++ if (dev->isYaffs2) + dev->useHeaderFileSize = 1; +- } +- if(!init_failed && !yaffs_InitialiseBlocks(dev)) ++ ++ if (!init_failed && !yaffs_InitialiseBlocks(dev)) + init_failed = 1; + + yaffs_InitialiseTnodes(dev); + yaffs_InitialiseObjects(dev); + +- if(!init_failed && !yaffs_CreateInitialDirectories(dev)) ++ if (!init_failed && !yaffs_CreateInitialDirectories(dev)) + init_failed = 1; + + +- if(!init_failed){ ++ if (!init_failed) { + /* Now scan the flash. */ + if (dev->isYaffs2) { +- if(yaffs_CheckpointRestore(dev)) { ++ if (yaffs_CheckpointRestore(dev)) { ++ yaffs_CheckObjectDetailsLoaded(dev->rootDir); + T(YAFFS_TRACE_ALWAYS, + (TSTR("yaffs: restored from checkpoint" TENDSTR))); + } else { +@@ -7273,24 +7355,25 @@ int yaffs_GutsInitialise(yaffs_Device * + dev->nBackgroundDeletions = 0; + dev->oldestDirtySequence = 0; + +- if(!init_failed && !yaffs_InitialiseBlocks(dev)) ++ if (!init_failed && !yaffs_InitialiseBlocks(dev)) + init_failed = 1; + + yaffs_InitialiseTnodes(dev); + yaffs_InitialiseObjects(dev); + +- if(!init_failed && !yaffs_CreateInitialDirectories(dev)) ++ if (!init_failed && !yaffs_CreateInitialDirectories(dev)) + init_failed = 1; + +- if(!init_failed && !yaffs_ScanBackwards(dev)) ++ if (!init_failed && !yaffs_ScanBackwards(dev)) + init_failed = 1; + } +- }else +- if(!yaffs_Scan(dev)) ++ } else if (!yaffs_Scan(dev)) + init_failed = 1; ++ ++ yaffs_StripDeletedObjects(dev); + } + +- if(init_failed){ ++ if (init_failed) { + /* Clean up the mess */ + T(YAFFS_TRACE_TRACING, + (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR))); +@@ -7318,7 +7401,7 @@ int yaffs_GutsInitialise(yaffs_Device * + + } + +-void yaffs_Deinitialise(yaffs_Device * dev) ++void yaffs_Deinitialise(yaffs_Device *dev) + { + if (dev->isMounted) { + int i; +@@ -7330,7 +7413,7 @@ void yaffs_Deinitialise(yaffs_Device * d + dev->srCache) { + + for (i = 0; i < dev->nShortOpCaches; i++) { +- if(dev->srCache[i].data) ++ if (dev->srCache[i].data) + YFREE(dev->srCache[i].data); + dev->srCache[i].data = NULL; + } +@@ -7341,16 +7424,17 @@ void yaffs_Deinitialise(yaffs_Device * d + + YFREE(dev->gcCleanupList); + +- for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { ++ for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) + YFREE(dev->tempBuffer[i].buffer); +- } + + dev->isMounted = 0; +- } + ++ if (dev->deinitialiseNAND) ++ dev->deinitialiseNAND(dev); ++ } + } + +-static int yaffs_CountFreeChunks(yaffs_Device * dev) ++static int yaffs_CountFreeChunks(yaffs_Device *dev) + { + int nFree; + int b; +@@ -7358,7 +7442,7 @@ static int yaffs_CountFreeChunks(yaffs_D + yaffs_BlockInfo *blk; + + for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock; +- b++) { ++ b++) { + blk = yaffs_GetBlockInfo(dev, b); + + switch (blk->blockState) { +@@ -7373,19 +7457,19 @@ static int yaffs_CountFreeChunks(yaffs_D + default: + break; + } +- + } + + return nFree; + } + +-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev) ++int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev) + { + /* This is what we report to the outside world */ + + int nFree; + int nDirtyCacheChunks; + int blocksForCheckpoint; ++ int i; + + #if 1 + nFree = dev->nFreeChunks; +@@ -7397,12 +7481,9 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + + /* Now count the number of dirty chunks in the cache and subtract those */ + +- { +- int i; +- for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { +- if (dev->srCache[i].dirty) +- nDirtyCacheChunks++; +- } ++ for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { ++ if (dev->srCache[i].dirty) ++ nDirtyCacheChunks++; + } + + nFree -= nDirtyCacheChunks; +@@ -7410,8 +7491,8 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); + + /* Now we figure out how much to reserve for the checkpoint and report that... */ +- blocksForCheckpoint = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; +- if(blocksForCheckpoint < 0) ++ blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; ++ if (blocksForCheckpoint < 0) + blocksForCheckpoint = 0; + + nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); +@@ -7425,12 +7506,12 @@ int yaffs_GetNumberOfFreeChunks(yaffs_De + + static int yaffs_freeVerificationFailures; + +-static void yaffs_VerifyFreeChunks(yaffs_Device * dev) ++static void yaffs_VerifyFreeChunks(yaffs_Device *dev) + { + int counted; + int difference; + +- if(yaffs_SkipVerification(dev)) ++ if (yaffs_SkipVerification(dev)) + return; + + counted = yaffs_CountFreeChunks(dev); +@@ -7447,23 +7528,25 @@ static void yaffs_VerifyFreeChunks(yaffs + + /*---------------------------------------- YAFFS test code ----------------------*/ + +-#define yaffs_CheckStruct(structure,syze, name) \ +- if(sizeof(structure) != syze) \ +- { \ +- T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\ +- name,syze,sizeof(structure))); \ +- return YAFFS_FAIL; \ +- } ++#define yaffs_CheckStruct(structure, syze, name) \ ++ do { \ ++ if (sizeof(structure) != syze) { \ ++ T(YAFFS_TRACE_ALWAYS, (TSTR("%s should be %d but is %d\n" TENDSTR),\ ++ name, syze, sizeof(structure))); \ ++ return YAFFS_FAIL; \ ++ } \ ++ } while (0) + + static int yaffs_CheckStructures(void) + { +-/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags") */ +-/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion") */ +-/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare") */ ++/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */ ++/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */ ++/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */ + #ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG +- yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode") ++ yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode"); + #endif +- yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader") +- +- return YAFFS_OK; ++#ifndef CONFIG_YAFFS_WINCE ++ yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader"); ++#endif ++ return YAFFS_OK; + } +--- a/fs/yaffs2/yaffs_guts.h ++++ b/fs/yaffs2/yaffs_guts.h +@@ -90,7 +90,7 @@ + + #define YAFFS_MAX_SHORT_OP_CACHES 20 + +-#define YAFFS_N_TEMP_BUFFERS 4 ++#define YAFFS_N_TEMP_BUFFERS 6 + + /* We limit the number attempts at sucessfully saving a chunk of data. + * Small-page devices have 32 pages per block; large-page devices have 64. +@@ -108,6 +108,9 @@ + #define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 + #define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xEFFFFF00 + ++/* Special sequence number for bad block that failed to be marked bad */ ++#define YAFFS_SEQUENCE_BAD_BLOCK 0xFFFF0000 ++ + /* ChunkCache is used for short read/write operations.*/ + typedef struct { + struct yaffs_ObjectStruct *object; +@@ -134,11 +137,10 @@ typedef struct { + typedef struct { + unsigned chunkId:20; + unsigned serialNumber:2; +- unsigned byteCount:10; ++ unsigned byteCountLSB:10; + unsigned objectId:18; + unsigned ecc:12; +- unsigned unusedStuff:2; +- ++ unsigned byteCountMSB:2; + } yaffs_Tags; + + typedef union { +@@ -277,13 +279,13 @@ typedef struct { + + int softDeletions:10; /* number of soft deleted pages */ + int pagesInUse:10; /* number of pages in use */ +- yaffs_BlockState blockState:4; /* One of the above block states */ ++ unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ + __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ +- /* and retire the block. */ +- __u32 skipErasedCheck: 1; /* If this is set we can skip the erased check on this block */ +- __u32 gcPrioritise: 1; /* An ECC check or blank check has failed on this block. ++ /* and retire the block. */ ++ __u32 skipErasedCheck:1; /* If this is set we can skip the erased check on this block */ ++ __u32 gcPrioritise:1; /* An ECC check or blank check has failed on this block. + It should be prioritised for GC */ +- __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ ++ __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ + + #ifdef CONFIG_YAFFS_YAFFS2 + __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ +@@ -300,11 +302,11 @@ typedef struct { + + /* Apply to everything */ + int parentObjectId; +- __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ ++ __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ + YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; + +- /* Thes following apply to directories, files, symlinks - not hard links */ +- __u32 yst_mode; /* protection */ ++ /* The following apply to directories, files, symlinks - not hard links */ ++ __u32 yst_mode; /* protection */ + + #ifdef CONFIG_YAFFS_WINCE + __u32 notForWinCE[5]; +@@ -331,11 +333,14 @@ typedef struct { + __u32 win_ctime[2]; + __u32 win_atime[2]; + __u32 win_mtime[2]; +- __u32 roomToGrow[4]; + #else +- __u32 roomToGrow[10]; ++ __u32 roomToGrow[6]; ++ + #endif ++ __u32 inbandShadowsObject; ++ __u32 inbandIsShrink; + ++ __u32 reservedSpace[2]; + int shadowsObject; /* This object header shadows the specified object if > 0 */ + + /* isShrink applies to object headers written when we shrink the file (ie resize) */ +@@ -381,7 +386,7 @@ typedef struct { + } yaffs_FileStructure; + + typedef struct { +- struct list_head children; /* list of child links */ ++ struct ylist_head children; /* list of child links */ + } yaffs_DirectoryStructure; + + typedef struct { +@@ -418,23 +423,24 @@ struct yaffs_ObjectStruct { + * still in the inode cache. Free of object is defered. + * until the inode is released. + */ ++ __u8 beingCreated:1; /* This object is still being created so skip some checks. */ + + __u8 serial; /* serial number of chunk in NAND. Cached here */ + __u16 sum; /* sum of the name to speed searching */ + +- struct yaffs_DeviceStruct *myDev; /* The device I'm on */ ++ struct yaffs_DeviceStruct *myDev; /* The device I'm on */ + +- struct list_head hashLink; /* list of objects in this hash bucket */ ++ struct ylist_head hashLink; /* list of objects in this hash bucket */ + +- struct list_head hardLinks; /* all the equivalent hard linked objects */ ++ struct ylist_head hardLinks; /* all the equivalent hard linked objects */ + + /* directory structure stuff */ + /* also used for linking up the free list */ + struct yaffs_ObjectStruct *parent; +- struct list_head siblings; ++ struct ylist_head siblings; + + /* Where's my object header in NAND? */ +- int chunkId; ++ int hdrChunk; + + int nDataChunks; /* Number of data chunks attached to the file. */ + +@@ -485,7 +491,7 @@ struct yaffs_ObjectList_struct { + typedef struct yaffs_ObjectList_struct yaffs_ObjectList; + + typedef struct { +- struct list_head list; ++ struct ylist_head list; + int count; + } yaffs_ObjectBucket; + +@@ -495,11 +501,10 @@ typedef struct { + */ + + typedef struct { +- int structType; ++ int structType; + __u32 objectId; + __u32 parentId; +- int chunkId; +- ++ int hdrChunk; + yaffs_ObjectType variantType:3; + __u8 deleted:1; + __u8 softDeleted:1; +@@ -511,8 +516,7 @@ typedef struct { + + int nDataChunks; + __u32 fileSizeOrEquivalentObjectId; +- +-}yaffs_CheckpointObject; ++} yaffs_CheckpointObject; + + /*--------------------- Temporary buffers ---------------- + * +@@ -528,13 +532,13 @@ typedef struct { + /*----------------- Device ---------------------------------*/ + + struct yaffs_DeviceStruct { +- struct list_head devList; ++ struct ylist_head devList; + const char *name; + + /* Entry parameters set up way early. Yaffs sets up the rest.*/ + int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */ + int nChunksPerBlock; /* does not need to be a power of 2 */ +- int nBytesPerSpare; /* spare area size */ ++ int spareBytesPerChunk; /* spare area size */ + int startBlock; /* Start block we're allowed to use */ + int endBlock; /* End block we're allowed to use */ + int nReservedBlocks; /* We want this tuneable so that we can reduce */ +@@ -544,9 +548,7 @@ struct yaffs_DeviceStruct { + /* Stuff used by the shared space checkpointing mechanism */ + /* If this value is zero, then this mechanism is disabled */ + +- int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */ +- +- ++/* int nCheckpointReservedBlocks; */ /* Blocks to reserve for checkpoint data */ + + + int nShortOpCaches; /* If <= 0, then short op caching is disabled, else +@@ -560,30 +562,31 @@ struct yaffs_DeviceStruct { + void *genericDevice; /* Pointer to device context + * On an mtd this holds the mtd pointer. + */ +- void *superBlock; ++ void *superBlock; + + /* NAND access functions (Must be set before calling YAFFS)*/ + +- int (*writeChunkToNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, const __u8 * data, +- const yaffs_Spare * spare); +- int (*readChunkFromNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, __u8 * data, +- yaffs_Spare * spare); +- int (*eraseBlockInNAND) (struct yaffs_DeviceStruct * dev, +- int blockInNAND); +- int (*initialiseNAND) (struct yaffs_DeviceStruct * dev); ++ int (*writeChunkToNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, const __u8 *data, ++ const yaffs_Spare *spare); ++ int (*readChunkFromNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, __u8 *data, ++ yaffs_Spare *spare); ++ int (*eraseBlockInNAND) (struct yaffs_DeviceStruct *dev, ++ int blockInNAND); ++ int (*initialiseNAND) (struct yaffs_DeviceStruct *dev); ++ int (*deinitialiseNAND) (struct yaffs_DeviceStruct *dev); + + #ifdef CONFIG_YAFFS_YAFFS2 +- int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, const __u8 * data, +- const yaffs_ExtendedTags * tags); +- int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct * dev, +- int chunkInNAND, __u8 * data, +- yaffs_ExtendedTags * tags); +- int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo); +- int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo, +- yaffs_BlockState * state, int *sequenceNumber); ++ int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, const __u8 *data, ++ const yaffs_ExtendedTags *tags); ++ int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct *dev, ++ int chunkInNAND, __u8 *data, ++ yaffs_ExtendedTags *tags); ++ int (*markNANDBlockBad) (struct yaffs_DeviceStruct *dev, int blockNo); ++ int (*queryNANDBlock) (struct yaffs_DeviceStruct *dev, int blockNo, ++ yaffs_BlockState *state, __u32 *sequenceNumber); + #endif + + int isYaffs2; +@@ -595,10 +598,12 @@ struct yaffs_DeviceStruct { + void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); + + /* Callback to mark the superblock dirsty */ +- void (*markSuperBlockDirty)(void * superblock); ++ void (*markSuperBlockDirty)(void *superblock); + + int wideTnodesDisabled; /* Set to disable wide tnodes */ + ++ YCHAR *pathDividers; /* String of legal path dividers */ ++ + + /* End of stuff that must be set before initialisation. */ + +@@ -615,16 +620,14 @@ struct yaffs_DeviceStruct { + __u32 tnodeWidth; + __u32 tnodeMask; + +- /* Stuff to support various file offses to chunk/offset translations */ +- /* "Crumbs" for nDataBytesPerChunk not being a power of 2 */ +- __u32 crumbMask; +- __u32 crumbShift; +- __u32 crumbsPerChunk; +- +- /* Straight shifting for nDataBytesPerChunk being a power of 2 */ +- __u32 chunkShift; +- __u32 chunkMask; +- ++ /* Stuff for figuring out file offset to chunk conversions */ ++ __u32 chunkShift; /* Shift value */ ++ __u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */ ++ __u32 chunkMask; /* Mask to use for power-of-2 case */ ++ ++ /* Stuff to handle inband tags */ ++ int inbandTags; ++ __u32 totalBytesPerChunk; + + #ifdef __KERNEL__ + +@@ -633,7 +636,7 @@ struct yaffs_DeviceStruct { + __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer + * at compile time so we have to allocate it. + */ +- void (*putSuperFunc) (struct super_block * sb); ++ void (*putSuperFunc) (struct super_block *sb); + #endif + + int isMounted; +@@ -663,6 +666,8 @@ struct yaffs_DeviceStruct { + __u32 checkpointSum; + __u32 checkpointXor; + ++ int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */ ++ + /* Block Info */ + yaffs_BlockInfo *blockInfo; + __u8 *chunkBits; /* bitmap of chunks in use */ +@@ -684,11 +689,15 @@ struct yaffs_DeviceStruct { + yaffs_TnodeList *allocatedTnodeList; + + int isDoingGC; ++ int gcBlock; ++ int gcChunk; + + int nObjectsCreated; + yaffs_Object *freeObjects; + int nFreeObjects; + ++ int nHardLinks; ++ + yaffs_ObjectList *allocatedObjectList; + + yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; +@@ -745,8 +754,10 @@ struct yaffs_DeviceStruct { + int nBackgroundDeletions; /* Count of background deletions. */ + + ++ /* Temporary buffer management */ + yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; + int maxTemp; ++ int tempInUse; + int unmanagedTempAllocations; + int unmanagedTempDeallocations; + +@@ -758,9 +769,9 @@ struct yaffs_DeviceStruct { + + typedef struct yaffs_DeviceStruct yaffs_Device; + +-/* The static layout of bllock usage etc is stored in the super block header */ ++/* The static layout of block usage etc is stored in the super block header */ + typedef struct { +- int StructType; ++ int StructType; + int version; + int checkpointStartBlock; + int checkpointEndBlock; +@@ -773,7 +784,7 @@ typedef struct { + * must be preserved over unmount/mount cycles. + */ + typedef struct { +- int structType; ++ int structType; + int nErasedBlocks; + int allocationBlock; /* Current block being allocated off */ + __u32 allocationPage; +@@ -791,57 +802,45 @@ typedef struct { + + + typedef struct { +- int structType; +- __u32 magic; +- __u32 version; +- __u32 head; ++ int structType; ++ __u32 magic; ++ __u32 version; ++ __u32 head; + } yaffs_CheckpointValidity; + +-/* Function to manipulate block info */ +-static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) +-{ +- if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { +- T(YAFFS_TRACE_ERROR, +- (TSTR +- ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), +- blk)); +- YBUG(); +- } +- return &dev->blockInfo[blk - dev->internalStartBlock]; +-} + + /*----------------------- YAFFS Functions -----------------------*/ + +-int yaffs_GutsInitialise(yaffs_Device * dev); +-void yaffs_Deinitialise(yaffs_Device * dev); ++int yaffs_GutsInitialise(yaffs_Device *dev); ++void yaffs_Deinitialise(yaffs_Device *dev); + +-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev); ++int yaffs_GetNumberOfFreeChunks(yaffs_Device *dev); + +-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, +- yaffs_Object * newDir, const YCHAR * newName); ++int yaffs_RenameObject(yaffs_Object *oldDir, const YCHAR *oldName, ++ yaffs_Object *newDir, const YCHAR *newName); + +-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name); +-int yaffs_DeleteFile(yaffs_Object * obj); ++int yaffs_Unlink(yaffs_Object *dir, const YCHAR *name); ++int yaffs_DeleteObject(yaffs_Object *obj); + +-int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize); +-int yaffs_GetObjectFileLength(yaffs_Object * obj); +-int yaffs_GetObjectInode(yaffs_Object * obj); +-unsigned yaffs_GetObjectType(yaffs_Object * obj); +-int yaffs_GetObjectLinkCount(yaffs_Object * obj); ++int yaffs_GetObjectName(yaffs_Object *obj, YCHAR *name, int buffSize); ++int yaffs_GetObjectFileLength(yaffs_Object *obj); ++int yaffs_GetObjectInode(yaffs_Object *obj); ++unsigned yaffs_GetObjectType(yaffs_Object *obj); ++int yaffs_GetObjectLinkCount(yaffs_Object *obj); + +-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr); +-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr); ++int yaffs_SetAttributes(yaffs_Object *obj, struct iattr *attr); ++int yaffs_GetAttributes(yaffs_Object *obj, struct iattr *attr); + + /* File operations */ +-int yaffs_ReadDataFromFile(yaffs_Object * obj, __u8 * buffer, loff_t offset, +- int nBytes); +-int yaffs_WriteDataToFile(yaffs_Object * obj, const __u8 * buffer, loff_t offset, +- int nBytes, int writeThrough); +-int yaffs_ResizeFile(yaffs_Object * obj, loff_t newSize); +- +-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid); +-int yaffs_FlushFile(yaffs_Object * obj, int updateTime); ++int yaffs_ReadDataFromFile(yaffs_Object *obj, __u8 *buffer, loff_t offset, ++ int nBytes); ++int yaffs_WriteDataToFile(yaffs_Object *obj, const __u8 *buffer, loff_t offset, ++ int nBytes, int writeThrough); ++int yaffs_ResizeFile(yaffs_Object *obj, loff_t newSize); ++ ++yaffs_Object *yaffs_MknodFile(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid); ++int yaffs_FlushFile(yaffs_Object *obj, int updateTime); + + /* Flushing and checkpointing */ + void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); +@@ -850,33 +849,33 @@ int yaffs_CheckpointSave(yaffs_Device *d + int yaffs_CheckpointRestore(yaffs_Device *dev); + + /* Directory operations */ +-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, +- __u32 mode, __u32 uid, __u32 gid); +-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * theDir, const YCHAR * name); +-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, ++yaffs_Object *yaffs_MknodDirectory(yaffs_Object *parent, const YCHAR *name, ++ __u32 mode, __u32 uid, __u32 gid); ++yaffs_Object *yaffs_FindObjectByName(yaffs_Object *theDir, const YCHAR *name); ++int yaffs_ApplyToDirectoryChildren(yaffs_Object *theDir, + int (*fn) (yaffs_Object *)); + +-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number); ++yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device *dev, __u32 number); + + /* Link operations */ +-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, +- yaffs_Object * equivalentObject); ++yaffs_Object *yaffs_Link(yaffs_Object *parent, const YCHAR *name, ++ yaffs_Object *equivalentObject); + +-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj); ++yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object *obj); + + /* Symlink operations */ +-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, ++yaffs_Object *yaffs_MknodSymLink(yaffs_Object *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid, +- const YCHAR * alias); +-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj); ++ const YCHAR *alias); ++YCHAR *yaffs_GetSymlinkAlias(yaffs_Object *obj); + + /* Special inodes (fifos, sockets and devices) */ +-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, ++yaffs_Object *yaffs_MknodSpecial(yaffs_Object *parent, const YCHAR *name, + __u32 mode, __u32 uid, __u32 gid, __u32 rdev); + + /* Special directories */ +-yaffs_Object *yaffs_Root(yaffs_Device * dev); +-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev); ++yaffs_Object *yaffs_Root(yaffs_Device *dev); ++yaffs_Object *yaffs_LostNFound(yaffs_Device *dev); + + #ifdef CONFIG_YAFFS_WINCE + /* CONFIG_YAFFS_WINCE special stuff */ +@@ -885,18 +884,21 @@ void yfsd_WinFileTimeNow(__u32 target[2] + + #ifdef __KERNEL__ + +-void yaffs_HandleDeferedFree(yaffs_Object * obj); ++void yaffs_HandleDeferedFree(yaffs_Object *obj); + #endif + + /* Debug dump */ +-int yaffs_DumpObject(yaffs_Object * obj); ++int yaffs_DumpObject(yaffs_Object *obj); + +-void yaffs_GutsTest(yaffs_Device * dev); ++void yaffs_GutsTest(yaffs_Device *dev); + + /* A few useful functions */ +-void yaffs_InitialiseTags(yaffs_ExtendedTags * tags); +-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn); +-int yaffs_CheckFF(__u8 * buffer, int nBytes); ++void yaffs_InitialiseTags(yaffs_ExtendedTags *tags); ++void yaffs_DeleteChunk(yaffs_Device *dev, int chunkId, int markNAND, int lyn); ++int yaffs_CheckFF(__u8 *buffer, int nBytes); + void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); + ++__u8 *yaffs_GetTempBuffer(yaffs_Device *dev, int lineNo); ++void yaffs_ReleaseTempBuffer(yaffs_Device *dev, __u8 *buffer, int lineNo); ++ + #endif +--- a/fs/yaffs2/yaffs_mtdif1.c ++++ b/fs/yaffs2/yaffs_mtdif1.c +@@ -26,7 +26,7 @@ + #include "yportenv.h" + #include "yaffs_guts.h" + #include "yaffs_packedtags1.h" +-#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC ++#include "yaffs_tagscompat.h" /* for yaffs_CalcTagsECC */ + + #include "linux/kernel.h" + #include "linux/version.h" +@@ -34,9 +34,9 @@ + #include "linux/mtd/mtd.h" + + /* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + +-const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.3 2007/05/15 20:16:11 ian Exp $"; ++const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.10 2009-03-09 07:41:10 charles Exp $"; + + #ifndef CONFIG_YAFFS_9BYTE_TAGS + # define YTAG1_SIZE 8 +@@ -89,9 +89,9 @@ static struct nand_ecclayout nand_oob_16 + * Returns YAFFS_OK or YAFFS_FAIL. + */ + int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, +- int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags) ++ int chunkInNAND, const __u8 *data, const yaffs_ExtendedTags *etags) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int chunkBytes = dev->nDataBytesPerChunk; + loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; + struct mtd_oob_ops ops; +@@ -146,7 +146,7 @@ int nandmtd1_WriteChunkWithTagsToNAND(ya + + /* Return with empty ExtendedTags but add eccResult. + */ +-static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval) ++static int rettags(yaffs_ExtendedTags *etags, int eccResult, int retval) + { + if (etags) { + memset(etags, 0, sizeof(*etags)); +@@ -169,9 +169,9 @@ static int rettags(yaffs_ExtendedTags * + * Returns YAFFS_OK or YAFFS_FAIL. + */ + int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, +- int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags) ++ int chunkInNAND, __u8 *data, yaffs_ExtendedTags *etags) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int chunkBytes = dev->nDataBytesPerChunk; + loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; + int eccres = YAFFS_ECC_RESULT_NO_ERROR; +@@ -189,7 +189,7 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + ops.datbuf = data; + ops.oobbuf = (__u8 *)&pt1; + +-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)) ++#if (MTD_VERSION_CODE < MTD_VERSION(2, 6, 20)) + /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; + * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. + */ +@@ -284,11 +284,11 @@ int nandmtd1_ReadChunkWithTagsFromNAND(y + */ + int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; + int retval; + +- yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo); ++ yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad\n", blockNo); + + retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); + return (retval) ? YAFFS_FAIL : YAFFS_OK; +@@ -298,7 +298,7 @@ int nandmtd1_MarkNANDBlockBad(struct yaf + * + * Returns YAFFS_OK or YAFFS_FAIL. + */ +-static int nandmtd1_TestPrerequists(struct mtd_info * mtd) ++static int nandmtd1_TestPrerequists(struct mtd_info *mtd) + { + /* 2.6.18 has mtd->ecclayout->oobavail */ + /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */ +@@ -323,10 +323,11 @@ static int nandmtd1_TestPrerequists(stru + * Always returns YAFFS_OK. + */ + int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * pState, int *pSequenceNumber) ++ yaffs_BlockState *pState, __u32 *pSequenceNumber) + { +- struct mtd_info * mtd = dev->genericDevice; ++ struct mtd_info *mtd = dev->genericDevice; + int chunkNo = blockNo * dev->nChunksPerBlock; ++ loff_t addr = (loff_t)chunkNo * dev->nDataBytesPerChunk; + yaffs_ExtendedTags etags; + int state = YAFFS_BLOCK_STATE_DEAD; + int seqnum = 0; +@@ -335,21 +336,22 @@ int nandmtd1_QueryNANDBlock(struct yaffs + /* We don't yet have a good place to test for MTD config prerequists. + * Do it here as we are called during the initial scan. + */ +- if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) { ++ if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) + return YAFFS_FAIL; +- } + + retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); ++ etags.blockBad = (mtd->block_isbad)(mtd, addr); + if (etags.blockBad) { + yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, +- "block %d is marked bad", blockNo); ++ "block %d is marked bad\n", blockNo); + state = YAFFS_BLOCK_STATE_DEAD; +- } +- else if (etags.chunkUsed) { ++ } else if (etags.eccResult != YAFFS_ECC_RESULT_NO_ERROR) { ++ /* bad tags, need to look more closely */ ++ state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; ++ } else if (etags.chunkUsed) { + state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; + seqnum = etags.sequenceNumber; +- } +- else { ++ } else { + state = YAFFS_BLOCK_STATE_EMPTY; + } + +@@ -360,4 +362,4 @@ int nandmtd1_QueryNANDBlock(struct yaffs + return YAFFS_OK; + } + +-#endif /*KERNEL_VERSION*/ ++#endif /*MTD_VERSION*/ +--- a/fs/yaffs2/yaffs_mtdif1.h ++++ b/fs/yaffs2/yaffs_mtdif1.h +@@ -14,15 +14,15 @@ + #ifndef __YAFFS_MTDIF1_H__ + #define __YAFFS_MTDIF1_H__ + +-int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, const yaffs_ExtendedTags * tags); ++int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, const yaffs_ExtendedTags *tags); + +-int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, +- __u8 * data, yaffs_ExtendedTags * tags); ++int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++ __u8 *data, yaffs_ExtendedTags *tags); + + int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); + + int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, +- yaffs_BlockState * state, int *sequenceNumber); ++ yaffs_BlockState *state, __u32 *sequenceNumber); + + #endif +--- a/fs/yaffs2/yaffs_mtdif2.c ++++ b/fs/yaffs2/yaffs_mtdif2.c +@@ -14,7 +14,7 @@ + /* mtd interface for YAFFS2 */ + + const char *yaffs_mtdif2_c_version = +- "$Id: yaffs_mtdif2.c,v 1.17 2007-02-14 01:09:06 wookey Exp $"; ++ "$Id: yaffs_mtdif2.c,v 1.23 2009-03-06 17:20:53 wookey Exp $"; + + #include "yportenv.h" + +@@ -27,19 +27,23 @@ const char *yaffs_mtdif2_c_version = + + #include "yaffs_packedtags2.h" + +-int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, +- const __u8 * data, +- const yaffs_ExtendedTags * tags) ++/* NB For use with inband tags.... ++ * We assume that the data buffer is of size totalBytersPerChunk so that we can also ++ * use it to load the tags. ++ */ ++int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device *dev, int chunkInNAND, ++ const __u8 *data, ++ const yaffs_ExtendedTags *tags) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #else + size_t dummy; + #endif + int retval = 0; + +- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; ++ loff_t addr; + + yaffs_PackedTags2 pt; + +@@ -48,46 +52,40 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya + ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p" + TENDSTR), chunkInNAND, data, tags)); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- if (tags) +- yaffs_PackTags2(&pt, tags); +- else +- BUG(); /* both tags and data should always be present */ + +- if (data) { +- ops.mode = MTD_OOB_AUTO; +- ops.ooblen = sizeof(pt); +- ops.len = dev->nDataBytesPerChunk; +- ops.ooboffs = 0; +- ops.datbuf = (__u8 *)data; +- ops.oobbuf = (void *)&pt; +- retval = mtd->write_oob(mtd, addr, &ops); ++ addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; ++ ++ /* For yaffs2 writing there must be both data and tags. ++ * If we're using inband tags, then the tags are stuffed into ++ * the end of the data buffer. ++ */ ++ if (!data || !tags) ++ BUG(); ++ else if (dev->inbandTags) { ++ yaffs_PackedTags2TagsPart *pt2tp; ++ pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk); ++ yaffs_PackTags2TagsPart(pt2tp, tags); + } else +- BUG(); /* both tags and data should always be present */ +-#else +- if (tags) { + yaffs_PackTags2(&pt, tags); +- } + +- if (data && tags) { +- if (dev->useNANDECC) +- retval = +- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, (__u8 *) & pt, NULL); +- else +- retval = +- mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, (__u8 *) & pt, NULL); +- } else { +- if (data) +- retval = +- mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, +- data); +- if (tags) +- retval = +- mtd->write_oob(mtd, addr, mtd->oobsize, &dummy, +- (__u8 *) & pt); ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ ops.mode = MTD_OOB_AUTO; ++ ops.ooblen = (dev->inbandTags) ? 0 : sizeof(pt); ++ ops.len = dev->totalBytesPerChunk; ++ ops.ooboffs = 0; ++ ops.datbuf = (__u8 *)data; ++ ops.oobbuf = (dev->inbandTags) ? NULL : (void *)&pt; ++ retval = mtd->write_oob(mtd, addr, &ops); + ++#else ++ if (!dev->inbandTags) { ++ retval = ++ mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, ++ &dummy, data, (__u8 *) &pt, NULL); ++ } else { ++ retval = ++ mtd->write(mtd, addr, dev->totalBytesPerChunk, &dummy, ++ data); + } + #endif + +@@ -97,17 +95,18 @@ int nandmtd2_WriteChunkWithTagsToNAND(ya + return YAFFS_FAIL; + } + +-int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, +- __u8 * data, yaffs_ExtendedTags * tags) ++int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND, ++ __u8 *data, yaffs_ExtendedTags *tags) + { + struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) ++#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17)) + struct mtd_oob_ops ops; + #endif + size_t dummy; + int retval = 0; ++ int localData = 0; + +- loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; ++ loff_t addr = ((loff_t) chunkInNAND) * dev->totalBytesPerChunk; + + yaffs_PackedTags2 pt; + +@@ -116,9 +115,20 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y + ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p" + TENDSTR), chunkInNAND, data, tags)); + +-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) +- if (data && !tags) +- retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, ++ if (dev->inbandTags) { ++ ++ if (!data) { ++ localData = 1; ++ data = yaffs_GetTempBuffer(dev, __LINE__); ++ } ++ ++ ++ } ++ ++ ++#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17)) ++ if (dev->inbandTags || (data && !tags)) ++ retval = mtd->read(mtd, addr, dev->totalBytesPerChunk, + &dummy, data); + else if (tags) { + ops.mode = MTD_OOB_AUTO; +@@ -130,38 +140,42 @@ int nandmtd2_ReadChunkWithTagsFromNAND(y + retval = mtd->read_oob(mtd, addr, &ops); + } + #else +- if (data && tags) { +- if (dev->useNANDECC) { +- retval = +- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, +- &dummy, data, dev->spareBuffer, +- NULL); +- } else { +- retval = +- mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, ++ if (!dev->inbandTags && data && tags) { ++ ++ retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, + &dummy, data, dev->spareBuffer, + NULL); +- } + } else { + if (data) + retval = + mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, + data); +- if (tags) ++ if (!dev->inbandTags && tags) + retval = + mtd->read_oob(mtd, addr, mtd->oobsize, &dummy, + dev->spareBuffer); + } + #endif + +- memcpy(&pt, dev->spareBuffer, sizeof(pt)); + +- if (tags) +- yaffs_UnpackTags2(tags, &pt); ++ if (dev->inbandTags) { ++ if (tags) { ++ yaffs_PackedTags2TagsPart *pt2tp; ++ pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk]; ++ yaffs_UnpackTags2TagsPart(tags, pt2tp); ++ } ++ } else { ++ if (tags) { ++ memcpy(&pt, dev->spareBuffer, sizeof(pt)); ++ yaffs_UnpackTags2(tags, &pt); ++ } ++ } + +- if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) +- tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; ++ if (localData) ++ yaffs_ReleaseTempBuffer(dev, data, __LINE__); + ++ 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 |