diff options
Diffstat (limited to 'target/linux/generic/files/fs')
33 files changed, 3152 insertions, 2824 deletions
diff --git a/target/linux/generic/files/fs/yaffs2/Kconfig b/target/linux/generic/files/fs/yaffs2/Kconfig index 7b6f836cd..c0e545b64 100644 --- a/target/linux/generic/files/fs/yaffs2/Kconfig +++ b/target/linux/generic/files/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" diff --git a/target/linux/generic/files/fs/yaffs2/Makefile b/target/linux/generic/files/fs/yaffs2/Makefile index 73f46583f..382ee6142 100644 --- a/target/linux/generic/files/fs/yaffs2/Makefile +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/NOTE.openwrt b/target/linux/generic/files/fs/yaffs2/NOTE.openwrt new file mode 100644 index 000000000..fe1049d8a --- /dev/null +++ b/target/linux/generic/files/fs/yaffs2/NOTE.openwrt @@ -0,0 +1,4 @@ +The yaffs2 source has been fetched from the yaffs2 CVS tree. + +URL: cvs.aleph1.co.uk +Version: 2009-09-24 diff --git a/target/linux/generic/files/fs/yaffs2/devextras.h b/target/linux/generic/files/fs/yaffs2/devextras.h index fcf2690a5..7df46dc29 100644 --- a/target/linux/generic/files/fs/yaffs2/devextras.h +++ b/target/linux/generic/files/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; +#define ylist_entry(entry, type, member) \ + ((type *)((char *)(entry)-(unsigned long)(&((type *)NULL)->member))) - 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. +/* 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 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_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 */ + -/* - * File types - */ #define DT_UNKNOWN 0 #define DT_FIFO 1 #define DT_CHR 2 @@ -212,6 +153,7 @@ static __inline__ void list_splice(struct list_head *list, #define DT_SOCK 12 #define DT_WHT 14 + #ifndef WIN32 #include <sys/stat.h> #endif @@ -227,10 +169,6 @@ static __inline__ void list_splice(struct list_head *list, #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 diff --git a/target/linux/generic/files/fs/yaffs2/moduleconfig.h b/target/linux/generic/files/fs/yaffs2/moduleconfig.h index 016391ca5..a344baf37 100644 --- a/target/linux/generic/files/fs/yaffs2/moduleconfig.h +++ b/target/linux/generic/files/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. 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. +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 */ diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.c b/target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.c index 933a33fb8..40d792366 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.c +++ b/target/linux/generic/files/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)); - - 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 */)){ + 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 */)) { 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_CheckpointFindNextErasedBlock(yaffs_Device *dev) 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){ + 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){ + 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_CheckpointFindNextCheckpointBlock(yaffs_Device *dev) 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 *dev, int forWriting) /* 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 *dev, int forWriting) 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 *dev, int forWriting) 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 *dev, __u32 *sum) 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(yaffs_Device *dev) 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(yaffs_Device *dev) 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 *dev,const void *data, int nBytes) - 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,const void *data, int nBytes) 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 *dev, void *data, int nBytes) __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); + /* 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; + 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 *dev, void *data, int nBytes) 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) 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); diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.h b/target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.h index d3ff17405..5d426ea8d 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_checkptrw.h +++ b/target/linux/generic/files/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); diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_ecc.c b/target/linux/generic/files/fs/yaffs2/yaffs_ecc.c index e2860393d..d037e90a2 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_ecc.c +++ b/target/linux/generic/files/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 char *data, unsigned char *ecc) 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 char *data, unsigned char *ecc) 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 char *read_ecc, 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, unsigned char *read_ecc, * 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 unsigned char *data, unsigned nBytes, } 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 *data, unsigned nBytes, 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 *data, unsigned nBytes, 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 *data, unsigned nBytes, } 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 *data, unsigned nBytes, /* Unrecoverable error */ return -1; - } - diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_ecc.h b/target/linux/generic/files/fs/yaffs2/yaffs_ecc.h index 79bc3d117..60765176e 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_ecc.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_fs.c b/target/linux/generic/files/fs/yaffs2/yaffs_fs.c index 67001b10e..7c04ed3a3 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_fs.c +++ b/target/linux/generic/files/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 + +#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 <asm/uaccess.h> +#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_traceMask, "i"); +MODULE_PARM(yaffs_wr_attempts, "i"); +MODULE_PARM(yaffs_auto_checkpoint, "i"); +#endif + +#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) +/* use iget and read_inode */ +#define Y_IGET(sb, inum) iget((sb), (inum)) +static void yaffs_read_inode(struct inode *inode); + +#else +/* Call local equivalent */ +#define YAFFS_USE_OWN_IGET +#define Y_IGET(sb, inum) yaffs_iget((sb), (inum)) + +static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino); #endif /*#define T(x) printk x */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) -#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private +#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_block *sb); 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 dentry *dentry, struct nameidata *nd); 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_operations = { .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_operations = { #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_inode_operations = { .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_super_ops = { .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 *dentry, char __user * buffer, 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 dentry *dentry, struct nameidata *nd) 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(struct inode *dir, struct dentry *dentry) 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(struct inode *dir, struct dentry *dentry) 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(struct inode *dir, struct dentry *dentry) } } 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(struct inode *dir, struct dentry *dentry) 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 inode *inode) 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 inode *inode) yaffs_Device *dev; T(YAFFS_TRACE_OS, - ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, - atomic_read(&inode->i_count), - obj ? "object exists" : "null object")); + ("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 *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 file *f, struct page *pg) 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 file *f, struct page *pg) 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 file *f, struct page *pg) 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, struct page *pg) /* 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 *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 *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 *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 *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(struct inode *inode, yaffs_Object * obj) 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(struct inode *inode, yaffs_Object * obj) } 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 super_block *sb, int mode, int dev, } 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 file *f, const char *buf, size_t n, 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 file *f, const char *buf, size_t n, 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 file *f, const char *buf, size_t n, 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, void *dirent, filldir_t filldir) 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, void *dirent, filldir_t filldir) 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, void *dirent, filldir_t filldir) /* * 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, struct dentry *dentry, int mode, 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, struct dentry *dentry, int mode, 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)); + 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); + 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, struct dentry *dentry, int mode, 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, struct dentry *dentry, int mode, 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 *dir, struct dentry *dentry) 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 *dir, struct dentry *dentry) * 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 *file, struct dentry *dentry, 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 *old_dir, struct dentry *old_dentry, 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 *old_dir, struct dentry *old_dentry, } else { return -ENOTEMPTY; } - } static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) @@ -1308,15 +1492,15 @@ static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) 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 *dentry, struct iattr *attr) 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_block *sb, struct statfs *buf) 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_block *sb, struct statfs *buf) } -/** 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_block *sb) } 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 - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n")); +static struct inode *yaffs_iget(struct super_block *sb, unsigned long ino) +{ + struct inode *inode; + yaffs_Object *obj; + yaffs_Device *dev = yaffs_SuperToDevice(sb); - return 0; /* yaffs_do_sync_fs(sb);*/ + T(YAFFS_TRACE_OS, + ("yaffs_iget for %lu\n", ino)); + inode = iget_locked(sb, ino); + if (!inode) + return ERR_PTR(-ENOMEM); + if (!(inode->i_state & I_NEW)) + return inode; + + /* NB This is called as a side effect of other functions, but + * we had to release the lock to prevent deadlocks, so + * need to lock again. + */ + + yaffs_GrossLock(dev); + + obj = yaffs_FindObjectByNumber(dev, inode->i_ino); + + yaffs_FillInodeFromObject(inode, obj); + + yaffs_GrossUnlock(dev); + + unlock_new_inode(inode); + return inode; } +#else static void yaffs_read_inode(struct inode *inode) { @@ -1438,7 +1682,7 @@ static void yaffs_read_inode(struct inode *inode) 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 inode *inode) 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_block *sb, int *flags, char *data) 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_block *sb) { 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_block *sb) 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_block *sb) 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(void *vsb) { 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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, !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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, * 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_internal_read_super(int yaffsVersion, /* 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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, 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_internal_read_super(int yaffsVersion, 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, "yaffs", yaffs_read_super, #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, yaffs_Device * dev) { buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); + buf += sprintf(buf, "totalBytesPerChunk. %d\n", dev->totalBytesPerChunk); buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks); buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks); - buf += sprintf(buf, "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, yaffs_Device * dev) 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, yaffs_Device * dev) 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 *file, const char *buf, 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 *file, const char *buf, 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 *file, const char *buf, 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 *file, const char *buf, 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 *file, const char *buf, 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) diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_getblockinfo.h b/target/linux/generic/files/fs/yaffs2/yaffs_getblockinfo.h new file mode 100644 index 000000000..5b0a1ac24 --- /dev/null +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_guts.c b/target/linux/generic/files/fs/yaffs2/yaffs_guts.c index 2ab814691..d89b87af4 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_guts.c +++ b/target/linux/generic/files/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 int yaffs_DeleteWorker(yaffs_Object *in, yaffs_Tnode *tn, __u32 level, + int chunkOffset, int *limit); +static int yaffs_DoGenericObjectDeletion(yaffs_Object *in); -static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo); +static yaffs_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_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND); - -static int yaffs_UnlinkWorker(yaffs_Object * obj); -static void yaffs_DestroyObject(yaffs_Object * obj); + 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(yaffs_Device *dev) 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_Device * dev, int lineNo) 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_Device * dev, int lineNo) } -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(yaffs_Device * dev, __u8 * buffer, /* * 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; + if (buffer == dev->checkpointBuffer) + return 1; - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); - return 0; + T(YAFFS_TRACE_ALWAYS, + (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); + return 0; } @@ -296,62 +305,63 @@ int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer) * 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_StillSomeChunkBits(yaffs_Device * dev, int blk) 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(yaffs_Device *dev) 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_Device *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_Device *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 (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 (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(yaffs_Object *obj, yaffs_ObjectHeader *oh, * 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_Object * obj, yaffs_Tnode * tn, } } } 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_Object *obj) __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_Object *obj) 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_Object *obj) * 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_Object *obj) 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_Object *obj) 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_Object *obj) __u32 chunkMax; __u32 chunkIdOk; - __u32 chunkIsLive; + __u32 chunkInRange; + __u32 chunkShouldNotBeDeleted; + __u32 chunkValid; - if(!obj) + if (!obj) + return; + + 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_Object *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")); - } - - if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) { + 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 (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_Object *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_Device *dev) 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_Device * 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 nBytes) } 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 yaffs_DeviceStruct *dev, 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 yaffs_DeviceStruct *dev, } - 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_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, 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_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, /* 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_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, * 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_Device * dev, int blockInNAND) * */ -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(yaffs_Device * dev, int chunkInNAND, int /*---------------- 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 YCHAR * name) 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_Object * obj, const YCHAR * name) * 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_Device * dev, int nTnodes) * 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_Device * dev, int nTnodes) 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_Device * dev, int nTnodes) 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_Device * dev, int nTnodes) (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_Device * dev, int nTnodes) /* 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(yaffs_Device * dev) 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, yaffs_Tnode * tn) 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(yaffs_Device * dev) 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(yaffs_Device *dev, yaffs_Tnode *tn, unsigne */ /* 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_FindLevel0Tnode(yaffs_Device * dev, 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_FindLevel0Tnode(yaffs_Device * dev, * 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_AddOrFindLevel0Tnode(yaffs_Device * dev, /* 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_AddOrFindLevel0Tnode(yaffs_Device * dev, 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_AddOrFindLevel0Tnode(yaffs_Device * dev, 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_AddOrFindLevel0Tnode(yaffs_Device * dev, } } 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_Device * dev, int theChunk, * 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_Object * in, yaffs_Tnode * tn, __u32 level, 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_Object * in, yaffs_Tnode * tn, __u32 level, 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_Object * in, yaffs_Tnode * tn, __u32 level, 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_Object * in, yaffs_Tnode * tn, __u32 level, 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_Object * in, yaffs_Tnode * tn, __u32 level, } -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_Device * dev, int chunk) * 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_Object * in, yaffs_Tnode * tn, } 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_Object * in, yaffs_Tnode * tn, } -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_Object * obj) * 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(yaffs_Device * dev, yaffs_Tnode * tn, (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(yaffs_Device * dev, yaffs_Tnode * tn, } -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(yaffs_Device * dev, 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(yaffs_Device * dev, /* 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_Device * dev, int nObjects) 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_Device * dev, int nObjects) /* 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_Device * dev, int nObjects) /* 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_Object * tn) 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(yaffs_Device * dev) 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(yaffs_Device * dev) 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(yaffs_Device * dev) 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(yaffs_Device * dev) */ int found = 0; - struct list_head *i; + struct ylist_head *i; __u32 n = (__u32) bucket; @@ -2068,41 +2108,38 @@ static int yaffs_CreateNewObjectNumber(yaffs_Device * dev) 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(yaffs_Device * dev, __u32 number) 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(yaffs_Device * dev, int number, 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(yaffs_Device * dev, int number, 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 YCHAR * str) */ 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(yaffs_ObjectType type, if (in) { - in->chunkId = -1; + in->hdrChunk = 0; in->valid = 1; in->variantType = type; @@ -2293,10 +2326,10 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, 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(yaffs_ObjectType type, 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(yaffs_ObjectType type, 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 * parent, const YCHAR * name, } -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_Object * obj, yaffs_Object * newDir, 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 * oldDir, const YCHAR * oldName, 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 * oldDir, const YCHAR * oldName, * 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 * oldDir, const YCHAR * oldName, /*------------------------- 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_Device * dev) /* 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_Device * dev) } 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_BlockNotDisqualifiedFromGC(yaffs_Device * dev, 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_BlockNotDisqualifiedFromGC(yaffs_Device * dev, * 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_FindBlockForGarbageCollection(yaffs_Device * dev, } } - 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_FindBlockForGarbageCollection(yaffs_Device * dev, 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_FindBlockForGarbageCollection(yaffs_Device * dev, 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_FindBlockForGarbageCollection(yaffs_Device * dev, 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_Device * dev, int blockNo) } } -static int yaffs_FindBlockForAllocation(yaffs_Device * dev) +static int yaffs_FindBlockForAllocation(yaffs_Device *dev) { int i; @@ -2763,7 +2776,7 @@ static int yaffs_FindBlockForAllocation(yaffs_Device * dev) * 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(yaffs_Device * dev) 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_Device * dev, int useReserve, yaffs_BlockIn } 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_Device * dev, int useReserve, yaffs_BlockIn 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_Device * dev, int useReserve, yaffs_BlockIn 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(yaffs_Device * dev, int block) 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(yaffs_Device * dev, int block) 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); + + maxCopies = (wholeBlock) ? dev->nChunksPerBlock : 10; + oldChunk = block * dev->nChunksPerBlock + dev->gcChunk; - for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock; - chunkInBlock < dev->nChunksPerBlock - && yaffs_StillSomeChunkBits(dev, block); - chunkInBlock++, oldChunk++) { - if (yaffs_CheckChunkBit(dev, block, chunkInBlock)) { + 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(yaffs_Device * dev, int block) 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(yaffs_Device * dev, int block) 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(yaffs_Device * dev, int block) 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(yaffs_Device * dev, int block) * 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(yaffs_Device * dev, int block) 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(yaffs_Device * dev, int block) } } - yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); + if (retVal == YAFFS_OK) + yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); } } @@ -3098,18 +3163,25 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) } - 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(yaffs_Device * dev, int block) * 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(yaffs_Device * dev) 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(yaffs_Device * dev) 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_Device * dev) ("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_ExtendedTags * tags, int objectId, /*-------------------- 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_Object * in, int chunkInInode, 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_Object * in, int chunkInInode, 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_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode, 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_Object * in) 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_Object * in) 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_Object * in) #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_Object * in, int chunkInInode, &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_Object * in, int chunkInInode, * 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_Object * in, int chunkInInode, * 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_Object * in, int chunkInInode, } - 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(yaffs_Object * in, int chunkInInode, } -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 * dev, int chunkId, int markNAND, int lyn) 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 * dev, int chunkId, int markNAND, int lyn) 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(yaffs_Object * in, int chunkInInode, (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(yaffs_Object * in, int chunkInInode, 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(yaffs_Object * in, int chunkInInode, /* 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_Object * in, const YCHAR * name, int force, 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_Object * in, const YCHAR * name, int force, 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_Object * in, const YCHAR * name, int force, 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_Object * in, const YCHAR * name, int force, 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_Object * in, const YCHAR * name, int force, 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_Object * in, const YCHAR * name, int force, 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_ObjectHasCachedWriteData(yaffs_Object *obj) 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_ObjectHasCachedWriteData(yaffs_Object *obj) } -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_Device *dev) */ 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_Device *dev) * 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; - - 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; } + 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_GrabChunkCache(yaffs_Device * dev) 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_GrabChunkCache(yaffs_Device * dev) } /* 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_FindChunkCache(const yaffs_Object * obj, } /* 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_Device * dev, yaffs_ChunkCache * cache, 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_Device * dev, yaffs_ChunkCache * cache, cache->lastUse = dev->srLastUse; - if (isAWrite) { + if (isAWrite) cache->dirty = 1; - } } } @@ -3997,21 +4046,20 @@ static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache, * 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_InvalidateWholeChunkCache(yaffs_Object * in) 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_InvalidateWholeChunkCache(yaffs_Object * in) /*--------------------- 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_ReadCheckpointValidityMarker(yaffs_Device *dev, int head) 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(yaffs_Device *dev) 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(yaffs_Device *dev) 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_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, 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_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, 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_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb 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_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb 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(yaffs_Object * in, yaffs_Tnode * tn, } } 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(yaffs_Object *obj) __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(yaffs_Object *obj) 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_Device *dev) 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(yaffs_Device *dev) 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(yaffs_Device *dev) __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_Device *dev) __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_Device *dev) 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(yaffs_Device *dev) { 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(yaffs_Device *dev) 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(yaffs_Device *dev) 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 *dev) 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 *dev) * 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 * in, __u8 * buffer, loff_t offset, 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 * in, __u8 * buffer, loff_t offset, 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 * in, __u8 * buffer, loff_t offset, 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 * in, __u8 * buffer, loff_t offset, 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 * in, const __u8 * buffer, loff_t offset, * 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 (nBytesRead > 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) 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 * in, const __u8 * buffer, loff_t offset, 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 * in, const __u8 * buffer, loff_t offset, 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 * in, const __u8 * buffer, loff_t offset, 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 * in, const __u8 * buffer, loff_t offset, } } 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 * in, const __u8 * buffer, loff_t offset, /* 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 * in, const __u8 * buffer, loff_t offset, /* ---------------------- 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(yaffs_Object * in, int newSize) } -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, loff_t newSize) 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, loff_t newSize) } - /* 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 * obj) -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, int updateTime) #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, int updateTime) } -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(yaffs_Object * in) 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(yaffs_Object * in) * 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_Object * obj) 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_Object * obj) 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, const YCHAR * name) /*----------------------- 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(yaffs_Device * dev, int objId, /* 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(yaffs_Device * dev, int objId, 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_Device *dev, yaffs_Object *hardList) 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; + __u8 *chunkData; - 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; - - 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); - } + struct yaffs_ShadowFixerStruct *fixer; + yaffs_Object *obj; + + while (shadowFixerList) { + fixer = shadowFixerList; + shadowFixerList = fixer->next; + /* Complete the rename transaction by deleting the shadowed object + * then setting the object header to unshadowed. + */ + obj = yaffs_FindObjectByNumber(dev, fixer->shadowedId); + if (obj) + yaffs_DeleteObject(obj); + + obj = yaffs_FindObjectByNumber(dev, fixer->objectId); + + if (obj) + yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); + + 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_CheckObjectDetailsLoaded(yaffs_Object *in) { __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_CheckObjectDetailsLoaded(yaffs_Object *in) #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_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; @@ -5972,12 +5973,12 @@ static int yaffs_ScanBackwards(yaffs_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * dev) (oh) ? oh-> parentObjectId : tags. extraParentObjectId; - unsigned isShrink = + + + isShrink = (oh) ? oh->isShrink : tags. extraIsShrinkHeader; @@ -6323,9 +6338,8 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) thisSize; } - if (isShrink) { + if (isShrink) bi->hasShrinkHeader = 1; - } } /* Use existing - destroy this one. */ @@ -6333,6 +6347,17 @@ static int yaffs_ScanBackwards(yaffs_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_Device * 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_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); - } - } + yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - /* 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); + if (alloc_failed) + return YAFFS_FAIL; - } + T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); + + 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; - if(dev && dev->removeObjectCallback) + yaffs_VerifyDirectory(parent); + + 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(yaffs_Object * directory, 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(yaffs_Object * directory, ("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(yaffs_Object * directory, 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(yaffs_Object * directory, #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_Object * theDir, ("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_Object * theDir, * 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_Object * obj) 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 * obj, YCHAR * name, int buffSize) 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 * obj, YCHAR * name, int buffSize) 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 * obj, YCHAR * name, int buffSize) 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_Object * obj) } } -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 * obj, struct iattr *attr) 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 * obj, struct iattr *attr) 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_CreateInitialDirectories(yaffs_Device *dev) 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_CreateInitialDirectories(yaffs_Device *dev) 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) 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 * dev) /* 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 * dev) 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) 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 * dev) 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) 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 * dev) 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); + + buf = (__u8 *) dev->srCache; - if(dev->srCache) - memset(dev->srCache,0,srCacheBytes); + 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) 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) 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 * dev) } -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 * dev) 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 * dev) 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_Device * dev) 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_Device * dev) 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_Device * dev) /* 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_Device * dev) 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_Device * dev) 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_Device * dev) /*---------------------------------------- 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; } diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_guts.h b/target/linux/generic/files/fs/yaffs2/yaffs_guts.h index ea06c1a38..a3b110291 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_guts.h +++ b/target/linux/generic/files/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); +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); +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 *dev); 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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c index 466e5a44c..306e18839 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.c +++ b/target/linux/generic/files/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_noeccinfo = { }; #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(const yaffs_Spare *spare, __u8 *oob) 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(yaffs_Spare *spare, __u8 *oob) } #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_Device * dev, int chunkInNAND, 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_Device * dev, int chunkInNAND, __u8 * data, 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_Device * dev, int blockNumber) return YAFFS_FAIL; } -int nandmtd_InitialiseNAND(yaffs_Device * dev) +int nandmtd_InitialiseNAND(yaffs_Device *dev) { return YAFFS_OK; } diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.h b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.h index 317600cac..e72cfcddf 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif1.c b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif1.c index 36d5adec5..c069dfac7 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif1.c +++ b/target/linux/generic/files/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(yaffs_Device *dev, /* 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 * etags, int eccResult, int retval) * 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(yaffs_Device *dev, 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(yaffs_Device *dev, */ 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 yaffs_DeviceStruct *dev, int blockNo) * * 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(struct mtd_info * mtd) * 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_DeviceStruct *dev, int blockNo, /* 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_DeviceStruct *dev, int blockNo, return YAFFS_OK; } -#endif /*KERNEL_VERSION*/ +#endif /*MTD_VERSION*/ diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif1.h b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif1.h index c4f6197d6..240202cdf 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif1.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif2.c b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif2.c index cdad0734b..77504babb 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif2.c +++ b/target/linux/generic/files/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(yaffs_Device * dev, int chunkInNAND, ("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(yaffs_Device * dev, int chunkInNAND, 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(yaffs_Device * dev, int chunkInNAND, ("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(yaffs_Device * dev, int chunkInNAND, 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 yaffs_DeviceStruct *dev, int blockNo) 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 yaffs_DeviceStruct *dev, int blockNo) } 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_DeviceStruct *dev, int blockNo, retval = mtd->block_isbad(mtd, blockNo * dev->nChunksPerBlock * - dev->nDataBytesPerChunk); + dev->totalBytesPerChunk); if (retval) { T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR))); diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif2.h b/target/linux/generic/files/fs/yaffs2/yaffs_mtdif2.h index b67ba52aa..b5ff07881 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_mtdif2.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_nand.c b/target/linux/generic/files/fs/yaffs2/yaffs_nand.c index 4e250338d..bd815cb7a 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_nand.c +++ b/target/linux/generic/files/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(yaffs_Device * dev, int chunkInNAND, 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(yaffs_Device * dev, int chunkInNAND, 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_Device * dev, 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 * dev, int blockNo) 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; diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_nand.h b/target/linux/generic/files/fs/yaffs2/yaffs_nand.h index 5fa334bdc..e013cdc2f 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_nand.h +++ b/target/linux/generic/files/fs/yaffs2/yaffs_nand.h @@ -19,21 +19,21 @@ -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 yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, - int chunkInNAND, - const __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_MarkBlockBad(yaffs_Device *dev, int blockNo); -int yaffs_QueryInitialBlockState(yaffs_Device * dev, - int blockNo, - yaffs_BlockState * state, - unsigned *sequenceNumber); +int yaffs_QueryInitialBlockState(yaffs_Device *dev, + int blockNo, + yaffs_BlockState *state, + unsigned *sequenceNumber); int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, int blockInNAND); diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_nandemul2k.h b/target/linux/generic/files/fs/yaffs2/yaffs_nandemul2k.h index cd2e96f7a..41bc2b5f8 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_nandemul2k.h +++ b/target/linux/generic/files/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); diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags1.c b/target/linux/generic/files/fs/yaffs2/yaffs_packedtags1.c index f480bf1df..3e67e6916 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags1.c +++ b/target/linux/generic/files/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 * pt, const yaffs_ExtendedTags * t) } -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_ExtendedTags * t, const yaffs_PackedTags1 * pt) 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_ExtendedTags * t, const yaffs_PackedTags1 * pt) t->serialNumber = pt->serialNumber; } else { memset(t, 0, sizeof(yaffs_ExtendedTags)); - } } diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags1.h b/target/linux/generic/files/fs/yaffs2/yaffs_packedtags1.h index 776c5c256..f8c0471d4 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags1.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags2.c b/target/linux/generic/files/fs/yaffs2/yaffs_packedtags2.c index e420f95da..a78c03c9d 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags2.c +++ b/target/linux/generic/files/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 * pt, const yaffs_ExtendedTags * t) #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); } + diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags2.h b/target/linux/generic/files/fs/yaffs2/yaffs_packedtags2.h index c2242ffe7..ec30f843b 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_packedtags2.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_qsort.c b/target/linux/generic/files/fs/yaffs2/yaffs_qsort.c index 474be9cea..187519fbd 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_qsort.c +++ b/target/linux/generic/files/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; diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_qsort.h b/target/linux/generic/files/fs/yaffs2/yaffs_qsort.h index 610b7ec84..941c7a87c 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_qsort.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c b/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c index 7622b1af7..402537fb4 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c +++ b/target/linux/generic/files/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 * tags) /********** 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(yaffs_Spare * sparePtr, 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_Device * dev, yaffs_Spare * sparePtr, 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 yaffs_DeviceStruct *dev, 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(struct yaffs_DeviceStruct *dev, /* 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(struct yaffs_DeviceStruct *dev, 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 yaffs_DeviceStruct *dev, * 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(yaffs_Device * dev, int chunkInNAND) } #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_Device * dev, int chunkInNAND) 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 __u8 * d0, const __u8 * d1, } #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_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev, 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_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev, 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_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, } 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; diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.h b/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.h index a61e3ba14..6f95119e0 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_tagsvalidity.c b/target/linux/generic/files/fs/yaffs2/yaffs_tagsvalidity.c index 9e0bd1cf5..5233bcba8 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_tagsvalidity.c +++ b/target/linux/generic/files/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); diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_tagsvalidity.h b/target/linux/generic/files/fs/yaffs2/yaffs_tagsvalidity.h index 2fd0c24ed..cb11884b2 100644 --- a/target/linux/generic/files/fs/yaffs2/yaffs_tagsvalidity.h +++ b/target/linux/generic/files/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 diff --git a/target/linux/generic/files/fs/yaffs2/yportenv.h b/target/linux/generic/files/fs/yaffs2/yportenv.h index 15ac28121..28e205bbd 100644 --- a/target/linux/generic/files/fs/yaffs2/yportenv.h +++ b/target/linux/generic/files/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 |