diff options
| author | Wolfgang Denk <wd@denx.de> | 2008-08-14 14:41:06 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-08-14 14:41:06 +0200 |
| commit | 4b0708093e15b412296328bf81325cf9b69fe512 (patch) | |
| tree | 3586fc61e3fbac6553d888eb3091fb6064638cbb /fs | |
| parent | 28ac6719108e989429de2b3dfa90312ba7c4d27b (diff) | |
Coding Style cleanup, update CHANGELOG
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'fs')
33 files changed, 928 insertions, 937 deletions
diff --git a/fs/yaffs2/Makefile b/fs/yaffs2/Makefile index ab8b27f1da9..a2ef5e22f67 100644 --- a/fs/yaffs2/Makefile +++ b/fs/yaffs2/Makefile @@ -31,7 +31,7 @@ SRCS := $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(COBJS-y)) # -DCONFIG_YAFFS_NO_YAFFS1 -CFLAGS += -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM -DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE -DLINUX_VERSION_CODE=0x20622 +CFLAGS += -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM -DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE -DLINUX_VERSION_CODE=0x20622 all: $(LIB) @@ -53,4 +53,3 @@ include $(SRCTREE)/rules.mk sinclude $(obj).depend ######################################################################### - diff --git a/fs/yaffs2/README-linux b/fs/yaffs2/README-linux index 589ae8dd344..3851e360d81 100644 --- a/fs/yaffs2/README-linux +++ b/fs/yaffs2/README-linux @@ -8,7 +8,7 @@ in YAFFS2 mode (CONFIG_YAFFS_YAFFS2). A note on licencing ------------------- -YAFFS is available under the GPL and via alternative licensing +YAFFS is available under the GPL and via alternative licensing arrangements with Aleph One. If you're using YAFFS as a Linux kernel file system then it will be under the GPL. For use in other situations you should discuss licensing issues with Aleph One. @@ -17,10 +17,10 @@ you should discuss licensing issues with Aleph One. Terminology ----------- Page - NAND addressable unit (normally 512b or 2Kbyte size) - can - be read, written, marked bad. Has associated OOB. + be read, written, marked bad. Has associated OOB. Block - Eraseable unit. 64 Pages. (128K on 2K NAND, 32K on 512b NAND) OOB - 'spare area' of each page for ECC, bad block marked and YAFFS - tags. 16 bytes per 512b - 64 bytes for 2K page size. + tags. 16 bytes per 512b - 64 bytes for 2K page size. Chunk - Basic YAFFS addressable unit. Same size as Page. Object - YAFFS Object: File, Directory, Link, Device etc. @@ -48,28 +48,28 @@ is managed by moving deleted objects to the special, hidden 'unlinked' directory. These records are preserved until all the pages containing the object have been erased (We know when this happen by keeping a count of chunks remaining on the system for each object - when it -reaches zero the object really is gone). +reaches zero the object really is gone). When data in a file is overwritten, the relevant chunks are replaced by writing new pages to flash containing the new data but the same -tags. +tags. -Pages are also marked with a short (2 bit) serial number that -increments each time the page at this position is incremented. The -reason for this is that if power loss/crash/other act of demonic -forces happens before the replaced page is marked as discarded, it is -possible to have two pages with the same tags. The serial number is +Pages are also marked with a short (2 bit) serial number that +increments each time the page at this position is incremented. The +reason for this is that if power loss/crash/other act of demonic +forces happens before the replaced page is marked as discarded, it is +possible to have two pages with the same tags. The serial number is used to arbitrate. -A block containing only discarded pages (termed a dirty block) is an +A block containing only discarded pages (termed a dirty block) is an obvious candidate for garbage collection. Otherwise valid pages can be -copied off a block thus rendering the whole block discarded and ready -for garbage collection. - +copied off a block thus rendering the whole block discarded and ready +for garbage collection. + In theory you don't need to hold the file structure in RAM... you could just scan the whole flash looking for pages when you need them. In practice though you'd want better file access times than that! The -mechanism proposed here is to have a list of __u16 page addresses +mechanism proposed here is to have a list of __u16 page addresses associated with each file. Since there are 2^18 pages in a 128MB NAND, a __u16 is insufficient to uniquely identify a page but is does identify a group of 4 pages - a small enough region to search @@ -77,17 +77,17 @@ exhaustively. This mechanism is clearly expandable to larger NAND devices - within reason. The RAM overhead with this approach is approx 2 bytes per page - 512kB of RAM for a whole 128MB NAND. -Boot-time scanning to build the file structure lists only requires +Boot-time scanning to build the file structure lists only requires one pass reading NAND. If proper shutdowns happen the current RAM summary of the filesystem status is saved to flash, called 'checkpointing'. This saves re-scanning the flash on startup, and gives -huge boot/mount time savings. +huge boot/mount time savings. YAFFS regenerates its state by 'replaying the tape' - i.e. by scanning the chunks in their allocation order (i.e. block sequence ID order), which is usually different form the media block order. Each block is still only read once - starting from the end of the media and -working back. +working back. YAFFS tags in YAFFS1 mode: @@ -109,27 +109,27 @@ YAFFS tags in YAFFS2 mode: 12 bytes ECC on data (3 bytes per 256 bytes of data) -Page allocation and garbage collection - -Pages are allocated sequentially from the currently selected block. -When all the pages in the block are filled, another clean block is -selected for allocation. At least two or three clean blocks are -reserved for garbage collection purposes. If there are insufficient -clean blocks available, then a dirty block ( ie one containing only +Page allocation and garbage collection + +Pages are allocated sequentially from the currently selected block. +When all the pages in the block are filled, another clean block is +selected for allocation. At least two or three clean blocks are +reserved for garbage collection purposes. If there are insufficient +clean blocks available, then a dirty block ( ie one containing only discarded pages) is erased to free it up as a clean block. If no dirty -blocks are available, then the dirtiest block is selected for garbage -collection. - -Garbage collection is performed by copying the valid data pages into -new data pages thus rendering all the pages in this block dirty and -freeing it up for erasure. I also like the idea of selecting a block +blocks are available, then the dirtiest block is selected for garbage +collection. + +Garbage collection is performed by copying the valid data pages into +new data pages thus rendering all the pages in this block dirty and +freeing it up for erasure. I also like the idea of selecting a block at random some small percentage of the time - thus reducing the chance of wear differences. YAFFS is single-threaded. Garbage-collection is done as a parasitic task of writing data. So each time some data is written, a bit of pending garbage collection is done. More pages are garbage-collected -when free space is tight. +when free space is tight. Flash writing @@ -143,7 +143,7 @@ This comes as a side-effect of the block-allocation strategy. Data is always written on the next free block, so they are all used equally. Blocks containing data that is written but never erased will not get back into the free list, so wear is levelled over only blocks which -are free or become free, not blocks which never change. +are free or become free, not blocks which never change. @@ -183,7 +183,7 @@ image just had to know which bytes to use for YAFFS Tags. Option 3 is hardest as the image creator needs to know exactly what ECC bytes, endianness and algorithm to use as well as which bytes are -available to YAFFS. +available to YAFFS. mkyaffs2image creates an image suitable for option 3 for the particular case of yaffs2 on 2K page NAND with default MTD layout. @@ -195,7 +195,7 @@ Bootloaders ----------- A bootloader using YAFFS needs to know how MTD is laying out the OOB -so that it can skip bad blocks. +so that it can skip bad blocks. YAFFS Tracing ------------- diff --git a/fs/yaffs2/devextras.h b/fs/yaffs2/devextras.h index 9acda79e860..f6e53610d6b 100644 --- a/fs/yaffs2/devextras.h +++ b/fs/yaffs2/devextras.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -15,7 +15,7 @@ /* * 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 + * Most of these are from kernel includes placed here so we can use them in * applications. * */ @@ -192,7 +192,7 @@ static __inline__ void list_splice(struct list_head *list, */ #define list_for_each(pos, head) \ for (pos = (head)->next, prefetch(pos->next); pos != (head); \ - pos = pos->next, prefetch(pos->next)) + pos = pos->next, prefetch(pos->next)) /** * list_for_each_safe - iterate over a list safe against removal diff --git a/fs/yaffs2/yaffs_checkptrw.c b/fs/yaffs2/yaffs_checkptrw.c index f97ba4b4272..230f78fb899 100644 --- a/fs/yaffs2/yaffs_checkptrw.c +++ b/fs/yaffs2/yaffs_checkptrw.c @@ -26,27 +26,27 @@ 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){ @@ -62,9 +62,9 @@ static int yaffs_CheckpointErase(yaffs_Device *dev) } } } - + dev->blocksInCheckpoint = 0; - + return 1; } @@ -76,11 +76,11 @@ static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev) T(YAFFS_TRACE_CHECKPOINT, (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock)); - + if(dev->checkpointNextBlock >= 0 && dev->checkpointNextBlock <= dev->internalEndBlock && blocksAvailable > 0){ - + for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){ @@ -92,7 +92,7 @@ static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev) } } T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR))); - + dev->checkpointNextBlock = -1; dev->checkpointCurrentBlock = -1; } @@ -101,19 +101,19 @@ 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), dev->blocksInCheckpoint, dev->checkpointNextBlock)); - - if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks) + + 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), + 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){ /* Right kind of block */ dev->checkpointNextBlock = tags.objectId; @@ -134,7 +134,7 @@ static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev) int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) { - + /* Got the functions we need? */ if (!dev->writeChunkWithTagsToNAND || !dev->readChunkWithTagsFromNAND || @@ -144,31 +144,31 @@ int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) if(forWriting && !yaffs_CheckpointSpaceOk(dev)) return 0; - + if(!dev->checkpointBuffer) dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk); if(!dev->checkpointBuffer) return 0; - + dev->checkpointPageSequence = 0; - + dev->checkpointOpenForWrite = forWriting; - + dev->checkpointByteCount = 0; dev->checkpointSum = 0; dev->checkpointXor = 0; dev->checkpointCurrentBlock = -1; dev->checkpointCurrentChunk = -1; dev->checkpointNextBlock = dev->internalStartBlock; - + /* Erase all the blocks in the checkpoint area */ 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 */ @@ -181,7 +181,7 @@ int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) for(i = 0; i < dev->checkpointMaxBlocks; i++) dev->checkpointBlockList[i] = -1; } - + return 1; } @@ -200,15 +200,15 @@ static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) int realignedChunk; yaffs_ExtendedTags tags; - + if(dev->checkpointCurrentBlock < 0){ yaffs_CheckpointFindNextErasedBlock(dev); dev->checkpointCurrentChunk = 0; } - + if(dev->checkpointCurrentBlock < 0) return 0; - + tags.chunkDeleted = 0; tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */ tags.chunkId = dev->checkpointPageSequence + 1; @@ -221,25 +221,25 @@ static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; dev->blocksInCheckpoint++; } - + 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)); - + chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId)); + realignedChunk = chunk - dev->chunkOffset; - + dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags); dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; + dev->checkpointPageSequence++; dev->checkpointCurrentChunk++; if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){ dev->checkpointCurrentChunk = 0; dev->checkpointCurrentBlock = -1; } memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); - + return 1; } @@ -249,37 +249,37 @@ int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes) int i=0; int ok = 1; - + __u8 * dataBytes = (__u8 *)data; - - + + if(!dev->checkpointBuffer) return 0; - + if(!dev->checkpointOpenForWrite) return -1; while(i < nBytes && ok) { - - + + dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ; dev->checkpointSum += *dataBytes; dev->checkpointXor ^= *dataBytes; - + dev->checkpointByteOffset++; i++; dataBytes++; dev->checkpointByteCount++; - - + + if(dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) + dev->checkpointByteOffset >= dev->nDataBytesPerChunk) ok = yaffs_CheckpointFlushBuffer(dev); } - + return i; } @@ -289,12 +289,12 @@ int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) int ok = 1; yaffs_ExtendedTags tags; - + int chunk; int realignedChunk; __u8 *dataBytes = (__u8 *)data; - + if(!dev->checkpointBuffer) return 0; @@ -302,31 +302,31 @@ int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) return -1; while(i < nBytes && ok) { - - + + if(dev->checkpointByteOffset < 0 || dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { - + if(dev->checkpointCurrentBlock < 0){ yaffs_CheckpointFindNextCheckpointBlock(dev); dev->checkpointCurrentChunk = 0; } - + if(dev->checkpointCurrentBlock < 0) ok = 0; else { - - chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + + + 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->readChunkWithTagsFromNAND(dev, realignedChunk, dev->checkpointBuffer, &tags); - + if(tags.chunkId != (dev->checkpointPageSequence + 1) || tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) ok = 0; @@ -334,12 +334,12 @@ int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) dev->checkpointByteOffset = 0; dev->checkpointPageSequence++; dev->checkpointCurrentChunk++; - + if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock) dev->checkpointCurrentBlock = -1; } } - + if(ok){ *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; dev->checkpointSum += *dataBytes; @@ -350,14 +350,14 @@ int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) dev->checkpointByteCount++; } } - + return i; } int yaffs_CheckpointClose(yaffs_Device *dev) { - if(dev->checkpointOpenForWrite){ + if(dev->checkpointOpenForWrite){ if(dev->checkpointByteOffset != 0) yaffs_CheckpointFlushBuffer(dev); } else { @@ -377,19 +377,19 @@ int yaffs_CheckpointClose(yaffs_Device *dev) dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock; dev->nErasedBlocks -= dev->blocksInCheckpoint; - + T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR), dev->checkpointByteCount)); - + if(dev->checkpointBuffer){ - /* free the buffer */ + /* free the buffer */ YFREE(dev->checkpointBuffer); dev->checkpointBuffer = NULL; return 1; } else return 0; - + } int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) diff --git a/fs/yaffs2/yaffs_checkptrw.h b/fs/yaffs2/yaffs_checkptrw.h index f4b0c7dcaaf..e59d151a276 100644 --- a/fs/yaffs2/yaffs_checkptrw.h +++ b/fs/yaffs2/yaffs_checkptrw.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -32,4 +32,3 @@ int yaffs_CheckpointInvalidateStream(yaffs_Device *dev); #endif - diff --git a/fs/yaffs2/yaffs_ecc.c b/fs/yaffs2/yaffs_ecc.c index a05a6b583b6..1b4a05d71b9 100644 --- a/fs/yaffs2/yaffs_ecc.c +++ b/fs/yaffs2/yaffs_ecc.c @@ -14,9 +14,9 @@ /* * This code implements the ECC algorithm used in SmartMedia. * - * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. + * 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 + * 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. * */ @@ -231,8 +231,8 @@ int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, return 1; /* Corrected the error */ } - if ((yaffs_CountBits(d0) + - yaffs_CountBits(d1) + + if ((yaffs_CountBits(d0) + + yaffs_CountBits(d1) + yaffs_CountBits(d2)) == 1) { /* Reccoverable error in ecc */ @@ -242,7 +242,7 @@ int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, return 1; /* Corrected the error */ } - + /* Unrecoverable error */ return -1; @@ -296,7 +296,7 @@ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, if ((cDelta | lDelta | lDeltaPrime) == 0) return 0; /* no error */ - if (lDelta == ~lDeltaPrime && + if (lDelta == ~lDeltaPrime && (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) { /* Single bit (recoverable) error in data */ @@ -312,7 +312,7 @@ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, if(lDelta >= nBytes) return -1; - + data[lDelta] ^= (1 << bit); return 1; /* corrected */ diff --git a/fs/yaffs2/yaffs_ecc.h b/fs/yaffs2/yaffs_ecc.h index 40fd02b9653..79bc3d11714 100644 --- a/fs/yaffs2/yaffs_ecc.h +++ b/fs/yaffs2/yaffs_ecc.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -16,9 +16,9 @@ /* * This code implements the ECC algorithm used in SmartMedia. * - * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. + * 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 + * 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. * */ diff --git a/fs/yaffs2/yaffs_flashif.h b/fs/yaffs2/yaffs_flashif.h index f7f4e4227db..4e5157e2528 100644 --- a/fs/yaffs2/yaffs_flashif.h +++ b/fs/yaffs2/yaffs_flashif.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_guts.c b/fs/yaffs2/yaffs_guts.c index 7dc62ef4d99..b368844296a 100644 --- a/fs/yaffs2/yaffs_guts.c +++ b/fs/yaffs2/yaffs_guts.c @@ -146,71 +146,71 @@ static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u3 YBUG(); } -/* Function to return the number of shifts for a power of 2 greater than or equal +/* 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. */ - + static __u32 ShiftsGE(__u32 x) { int extraBits; int nShifts; - + nShifts = extraBits = 0; - + while(x>1){ if(x & 1) extraBits++; x>>=1; nShifts++; } - if(extraBits) + if(extraBits) nShifts++; - + return nShifts; } /* Function to return the number of shifts to get a 1 in bit 0 */ - + static __u32 ShiftDiv(__u32 x) { int nShifts; - + nShifts = 0; - + if(!x) return 0; - + while( !(x&1)){ x>>=1; nShifts++; } - + return nShifts; } -/* +/* * Temporary buffer manipulations. */ -static int yaffs_InitialiseTempBuffers(yaffs_Device *dev) +static int yaffs_InitialiseTempBuffers(yaffs_Device *dev) { int i; __u8 *buf = (__u8 *)1; - + 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); } - + return buf ? YAFFS_OK : YAFFS_FAIL; - + } static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) @@ -283,8 +283,8 @@ int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer) } for (i = 0; i < dev->nShortOpCaches; i++) { - if( dev->srCache[i].data == buffer ) - return 1; + if( dev->srCache[i].data == buffer ) + return 1; } @@ -343,7 +343,7 @@ static Y_INLINE void yaffs_ClearChunkBit(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); blkBits[chunk / 8] |= (1 << (chunk & 7)); @@ -381,16 +381,16 @@ static int yaffs_CountChunkBits(yaffs_Device * dev, int blk) n++; x >>=1; } - + blkBits++; } return n; } -/* +/* * Verification code */ - + static int yaffs_SkipVerification(yaffs_Device *dev) { return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); @@ -423,14 +423,14 @@ static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) { int actuallyUsed; int inUse; - + 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)); - + switch(bi->blockState){ case YAFFS_BLOCK_STATE_UNKNOWN: case YAFFS_BLOCK_STATE_SCANNING: @@ -438,42 +438,42 @@ static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) 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 || 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)); - - + + /* 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)); - + /* Check that the sequence number is valid. - * Ten million is legal, but is very unlikely + * 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)); - + } static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int 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 */ - + 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)); @@ -485,14 +485,14 @@ static void yaffs_VerifyBlocks(yaffs_Device *dev) int i; int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; int nIllegalBlockStates = 0; - + if(yaffs_SkipVerification(dev)) return; memset(nBlocksPerState,0,sizeof(nBlocksPerState)); - + for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){ yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); yaffs_VerifyBlock(dev,bi,i); @@ -501,12 +501,12 @@ static void yaffs_VerifyBlocks(yaffs_Device *dev) nBlocksPerState[bi->blockState]++; else nIllegalBlockStates++; - + } - + T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR))); - + T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates)); if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR))); @@ -515,17 +515,17 @@ static void yaffs_VerifyBlocks(yaffs_Device *dev) T(YAFFS_TRACE_VERIFY, (TSTR("%s %d blocks"TENDSTR), blockStateName[i],nBlocksPerState[i])); - + 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]) 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) T(YAFFS_TRACE_VERIFY, (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), @@ -543,47 +543,47 @@ static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, { if(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)); + 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, + 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, + T(YAFFS_TRACE_VERIFY, (TSTR("Obj %d header mismatch objectId %d"TENDSTR), tags->objectId, obj->objectId)); /* * Check that the object's parent ids match if parentCheck requested. - * + * * Tests do not apply to the root object. */ - + if(parentCheck && tags->objectId > 1 && !obj->parent) - T(YAFFS_TRACE_VERIFY, + T(YAFFS_TRACE_VERIFY, (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), - tags->objectId, oh->parentObjectId)); - - + tags->objectId, oh->parentObjectId)); + + if(parentCheck && obj->parent && - oh->parentObjectId != obj->parent->objectId && + oh->parentObjectId != obj->parent->objectId && (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || obj->parent->objectId != YAFFS_OBJECTID_DELETED)) - T(YAFFS_TRACE_VERIFY, + T(YAFFS_TRACE_VERIFY, (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), - tags->objectId, oh->parentObjectId, obj->parent->objectId)); - - + tags->objectId, oh->parentObjectId, obj->parent->objectId)); + + if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */ T(YAFFS_TRACE_VERIFY, (TSTR("Obj %d header name is NULL"TENDSTR), @@ -598,7 +598,7 @@ static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn, - __u32 level, int chunkOffset) + __u32 level, int chunkOffset) { int i; yaffs_Device *dev = obj->myDev; @@ -619,12 +619,12 @@ static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn, 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); - + if(theChunk > 0){ /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); @@ -655,13 +655,13 @@ static void yaffs_VerifyFile(yaffs_Object *obj) yaffs_ExtendedTags tags; yaffs_Tnode *tn; __u32 objectId; - + if(obj && yaffs_SkipVerification(obj->myDev)) return; - + dev = obj->myDev; objectId = obj->objectId; - + /* Check file size is consistent with tnode depth */ lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; @@ -670,23 +670,23 @@ static void yaffs_VerifyFile(yaffs_Object *obj) x >>= YAFFS_TNODES_INTERNAL_BITS; requiredTallness++; } - + actualTallness = obj->variant.fileVariant.topLevel; - + if(requiredTallness > actualTallness ) T(YAFFS_TRACE_VERIFY, (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), obj->objectId,actualTallness, requiredTallness)); - - - /* Check that the chunks in the tnode tree are all correct. + + + /* Check that the chunks in the tnode tree are all correct. * We do this by scanning through the tnode tree and * checking the tags for every chunk match. */ if(yaffs_SkipNANDVerification(dev)) return; - + for(i = 1; i <= lastChunk; i++){ tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i); @@ -711,14 +711,14 @@ 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)) return; - + /* Verify sane equivalent object */ } @@ -726,7 +726,7 @@ static void yaffs_VerifySymlink(yaffs_Object *obj) { if(obj && yaffs_SkipVerification(obj->myDev)) return; - + /* Verify symlink string */ } @@ -739,32 +739,32 @@ static void yaffs_VerifySpecial(yaffs_Object *obj) static void yaffs_VerifyObject(yaffs_Object *obj) { yaffs_Device *dev; - + __u32 chunkMin; __u32 chunkMax; - + __u32 chunkIdOk; __u32 chunkIsLive; - + if(!obj) return; - + dev = obj->myDev; - + if(yaffs_SkipVerification(dev)) return; - + /* Check sane object header chunk */ - + chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; - + chunkIdOk = (obj->chunkId >= chunkMin && obj->chunkId <= chunkMax); - chunkIsLive = chunkIdOk && - yaffs_CheckChunkBit(dev, + chunkIsLive = chunkIdOk && + yaffs_CheckChunkBit(dev, obj->chunkId / dev->nChunksPerBlock, obj->chunkId % dev->nChunksPerBlock); - if(!obj->fake && + if(!obj->fake && (!chunkIdOk || !chunkIsLive)) { T(YAFFS_TRACE_VERIFY, (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), @@ -772,36 +772,36 @@ static void yaffs_VerifyObject(yaffs_Object *obj) chunkIdOk ? "" : ",out of range", chunkIsLive || !chunkIdOk ? "" : ",marked as deleted")); } - + if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) { yaffs_ExtendedTags tags; yaffs_ObjectHeader *oh; __u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__); - + oh = (yaffs_ObjectHeader *)buffer; - + yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags); - + yaffs_VerifyObjectHeader(obj,oh,&tags,1); - + 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)); + 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)); + obj->objectId,obj->parent->variantType)); } - + switch(obj->variantType){ case YAFFS_OBJECT_TYPE_FILE: yaffs_VerifyFile(obj); @@ -822,11 +822,11 @@ 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) @@ -837,11 +837,11 @@ static void yaffs_VerifyObjects(yaffs_Device *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) { + list_for_each(lh, &dev->objectBucket[i].list) { if (lh) { obj = list_entry(lh, yaffs_Object, hashLink); yaffs_VerifyObject(obj); @@ -855,7 +855,7 @@ static void yaffs_VerifyObjects(yaffs_Device *dev) /* * Simple hash function. Needs to have a reasonable spread */ - + static Y_INLINE int yaffs_HashFunction(int n) { /* XXX U-BOOT XXX */ @@ -868,7 +868,7 @@ static Y_INLINE int yaffs_HashFunction(int n) /* * Access functions to useful fake objects */ - + yaffs_Object *yaffs_Root(yaffs_Device * dev) { return dev->rootDir; @@ -883,7 +883,7 @@ yaffs_Object *yaffs_LostNFound(yaffs_Device * dev) /* * Erased NAND checking functions */ - + int yaffs_CheckFF(__u8 * buffer, int nBytes) { /* Horrible, slow implementation */ @@ -905,10 +905,10 @@ static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, int result; result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); - + if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) retval = YAFFS_FAIL; - + if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { T(YAFFS_TRACE_NANDACCESS, @@ -998,9 +998,9 @@ 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 && - (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); - + } while (writeOk != YAFFS_OK && + (yaffs_wr_attempts <= 0 || attempts <= yaffs_wr_attempts)); + if(!writeOk) chunk = -1; @@ -1018,13 +1018,13 @@ static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, /* * Block retiring for handling a broken block. */ - + static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND) { yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); yaffs_InvalidateCheckpoint(dev); - + yaffs_MarkBlockBad(dev, blockInNAND); bi->blockState = YAFFS_BLOCK_STATE_DEAD; @@ -1038,7 +1038,7 @@ static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND) * Functions for robustisizing TODO * */ - + static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * tags) @@ -1056,13 +1056,13 @@ void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) bi->gcPrioritise = 1; dev->hasPendingPrioritisedGCs = 1; bi->chunkErrorStrikes ++; - + if(bi->chunkErrorStrikes > 3){ bi->needsRetiring = 1; /* Too many stikes, so retire this */ T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); } - + } } @@ -1073,23 +1073,23 @@ static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); yaffs_HandleChunkError(dev,bi); - - + + 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 */ yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); } -/*---------------- Name handling functions ------------*/ +/*---------------- Name handling functions ------------*/ static __u16 yaffs_CalcNameSum(const YCHAR * name) { @@ -1130,7 +1130,7 @@ static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name) * The list is hooked together using the first pointer * in the tnode. */ - + /* yaffs_CreateTnodes creates a bunch more tnodes and * adds them to the tnode free list. * Don't use this function directly @@ -1148,7 +1148,7 @@ static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) if (nTnodes < 1) return YAFFS_OK; - + /* Calculate the tnode size in bytes for variable width tnode support. * Must be a multiple of 32-bits */ tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; @@ -1185,7 +1185,7 @@ static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; curr->internal[0] = next; } - + curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize]; curr->internal[0] = dev->freeTnodes; dev->freeTnodes = (yaffs_Tnode *)mem; @@ -1200,7 +1200,7 @@ static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) * NB If we can't add this to the management list it isn't fatal * but it just means we can't free this bunch of tnodes later. */ - + tnl = YMALLOC(sizeof(yaffs_TnodeList)); if (!tnl) { T(YAFFS_TRACE_ERROR, @@ -1249,11 +1249,11 @@ static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev) static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev) { yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); - + if(tn) memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); - return tn; + return tn; } /* FreeTnode frees up a tnode and puts it back on the free list */ @@ -1309,19 +1309,19 @@ void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsi __u32 bitInWord; __u32 wordInMap; __u32 mask; - + pos &= YAFFS_TNODES_LEVEL0_MASK; val >>= dev->chunkGroupBits; - + bitInMap = pos * dev->tnodeWidth; wordInMap = bitInMap /32; bitInWord = bitInMap & (32 -1); - + mask = dev->tnodeMask << bitInWord; - + map[wordInMap] &= ~mask; map[wordInMap] |= (mask & (val << bitInWord)); - + if(dev->tnodeWidth > (32-bitInWord)) { bitInWord = (32 - bitInWord); wordInMap++;; @@ -1338,24 +1338,24 @@ static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigne __u32 bitInWord; __u32 wordInMap; __u32 val; - + pos &= YAFFS_TNODES_LEVEL0_MASK; - + bitInMap = pos * dev->tnodeWidth; wordInMap = bitInMap /32; bitInWord = bitInMap & (32 -1); - + val = map[wordInMap] >> bitInWord; - + if(dev->tnodeWidth > (32-bitInWord)) { bitInWord = (32 - bitInWord); wordInMap++;; val |= (map[wordInMap] << bitInWord); } - + val &= dev->tnodeMask; val <<= dev->chunkGroupBits; - + return val; } @@ -1404,9 +1404,9 @@ static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, while (level > 0 && tn) { tn = tn-> internal[(chunkId >> - ( YAFFS_TNODES_LEVEL0_BITS + - (level - 1) * - YAFFS_TNODES_INTERNAL_BITS) + ( YAFFS_TNODES_LEVEL0_BITS + + (level - 1) * + YAFFS_TNODES_INTERNAL_BITS) ) & YAFFS_TNODES_INTERNAL_MASK]; level--; @@ -1426,7 +1426,7 @@ static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, * If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will * be plugged into the ttree. */ - + static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, yaffs_FileStructure * fStruct, __u32 chunkId, @@ -1463,7 +1463,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, if (requiredTallness > fStruct->topLevel) { /* Not tall enough,gotta make the tree taller */ for (i = fStruct->topLevel; i < requiredTallness; i++) { - + tn = yaffs_GetTnode(dev); if (tn) { @@ -1482,7 +1482,7 @@ static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, l = fStruct->topLevel; tn = fStruct->top; - + if(l > 0) { while (l > 0 && tn) { x = (chunkId >> @@ -1497,18 +1497,18 @@ static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, } 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]); tn->internal[x] = passedTn; - + } else if(!tn->internal[x]) { /* Don't have one, none passed in */ tn->internal[x] = yaffs_GetTnode(dev); } } - + tn = tn->internal[x]; l--; } @@ -1549,7 +1549,7 @@ static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk, /* DeleteWorker scans backwards through the tnode tree and deletes all the * chunks and tnodes in the file - * Returns 1 if the tree was deleted. + * Returns 1 if the tree was deleted. * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. */ @@ -1602,7 +1602,7 @@ static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; i--) { - theChunk = yaffs_GetChunkGroupBase(dev,tn,i); + theChunk = yaffs_GetChunkGroupBase(dev,tn,i); if (theChunk) { chunkInInode = @@ -1663,7 +1663,7 @@ static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk) * of the tnode. * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. */ - + static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, int chunkOffset) { @@ -1704,7 +1704,7 @@ static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, 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 + * We make an assumption that a chunk group is not larger than * a block. */ yaffs_SoftDeleteChunk(dev, theChunk); @@ -1806,7 +1806,7 @@ static int yaffs_PruneFileStructure(yaffs_Device * dev, /* Now we have a tree with all the non-zero branches NULL but the height * is the same as it was. * Let's see if we can trim internal tnodes to shorten the tree. - * We can do this if only the 0th element in the tnode is in use + * We can do this if only the 0th element in the tnode is in use * (ie all the non-zero are NULL) */ @@ -1860,7 +1860,7 @@ static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects) (TSTR("yaffs: Could not allocate more objects" TENDSTR))); return YAFFS_FAIL; } - + /* Hook them into the free list */ for (i = 0; i < nObjects - 1; i++) { newObjects[i].siblings.next = @@ -2149,7 +2149,7 @@ yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, theObject = yaffs_AllocateEmptyObject(dev); if(!theObject) return NULL; - + if(type == YAFFS_OBJECT_TYPE_FILE){ tn = yaffs_GetTnode(dev); if(!tn){ @@ -2157,8 +2157,8 @@ yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, return NULL; } } - - + + if (theObject) { theObject->fake = 0; @@ -2222,7 +2222,7 @@ static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev, return theObject; } - + static YCHAR *yaffs_CloneString(const YCHAR * str) { @@ -2244,7 +2244,7 @@ static YCHAR *yaffs_CloneString(const YCHAR * str) * aliasString only has meaning for a sumlink. * rdev only has meaning for devices (a subset of special objects) */ - + static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, yaffs_Object * parent, const YCHAR * name, @@ -2265,7 +2265,7 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, } in = yaffs_CreateNewObject(dev, -1, type); - + if(type == YAFFS_OBJECT_TYPE_SYMLINK){ str = yaffs_CloneString(aliasString); if(!str){ @@ -2273,8 +2273,8 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, return NULL; } } - - + + if (in) { in->chunkId = -1; @@ -2315,7 +2315,7 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, equivalentObject->objectId; list_add(&in->hardLinks, &equivalentObject->hardLinks); break; - case YAFFS_OBJECT_TYPE_FILE: + case YAFFS_OBJECT_TYPE_FILE: case YAFFS_OBJECT_TYPE_DIRECTORY: case YAFFS_OBJECT_TYPE_SPECIAL: case YAFFS_OBJECT_TYPE_UNKNOWN: @@ -2399,7 +2399,7 @@ static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir, TENDSTR))); YBUG(); } - + /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ if (obj->myDev->isYaffs2) { unlinkOp = (newDir == obj->myDev->unlinkedDir); @@ -2412,9 +2412,9 @@ static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir, existingTarget = yaffs_FindObjectByName(newDir, newName); - /* If the object is a file going into the unlinked directory, + /* If the object is a file going into the unlinked directory, * then it is OK to just stuff it in since duplicate names are allowed. - * else only proceed if the new name does not exist and if we're putting + * else only proceed if the new name does not exist and if we're putting * it into a directory. */ if ((unlinkOp || @@ -2478,7 +2478,7 @@ int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, /* There is a target that is a non-empty directory, so we fail */ return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ } else if (existingTarget && existingTarget != obj) { - /* Nuke the target first, using shadowing, + /* Nuke the target first, using shadowing, * but only if it isn't the same object */ yaffs_ChangeObjectName(obj, newDir, newName, force, @@ -2496,10 +2496,10 @@ int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, static int yaffs_InitialiseBlocks(yaffs_Device * dev) { int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - + dev->blockInfo = NULL; dev->chunkBits = NULL; - + dev->allocationBlock = -1; /* force it to get a new one */ /* If the first allocation strategy fails, thry the alternate one */ @@ -2510,9 +2510,9 @@ static int yaffs_InitialiseBlocks(yaffs_Device * dev) } else dev->blockInfoAlt = 0; - + if(dev->blockInfo){ - + /* Set up dynamic blockinfo stuff. */ dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); @@ -2523,7 +2523,7 @@ static int yaffs_InitialiseBlocks(yaffs_Device * dev) else dev->chunkBitsAlt = 0; } - + if (dev->blockInfo && dev->chunkBits) { memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo)); memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks); @@ -2544,7 +2544,7 @@ static void yaffs_DeinitialiseBlocks(yaffs_Device * dev) dev->blockInfoAlt = 0; dev->blockInfo = NULL; - + if(dev->chunkBitsAlt && dev->chunkBits) YFREE_ALT(dev->chunkBits); else if(dev->chunkBits) @@ -2608,14 +2608,14 @@ static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, int prioritised=0; yaffs_BlockInfo *bi; int pendingPrioritisedExist = 0; - + /* First let's see if we need to grab a prioritised block */ if(dev->hasPendingPrioritisedGCs){ for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){ bi = yaffs_GetBlockInfo(dev, i); //yaffs_VerifyBlock(dev,bi,i); - + if(bi->gcPrioritise) { pendingPrioritisedExist = 1; if(bi->blockState == YAFFS_BLOCK_STATE_FULL && @@ -2627,7 +2627,7 @@ static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, } } } - + if(!pendingPrioritisedExist) /* None found, so we can clear this */ dev->hasPendingPrioritisedGCs = 0; } @@ -2646,7 +2646,7 @@ static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, if(!prioritised) pagesInUse = - (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; + (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; if (aggressive) { iterations = @@ -2679,12 +2679,12 @@ static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, dirtiest = b; pagesInUse = 0; } - else + else #endif if (bi->blockState == YAFFS_BLOCK_STATE_FULL && (bi->pagesInUse - bi->softDeletions) < pagesInUse && - yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { + yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { dirtiest = b; pagesInUse = (bi->pagesInUse - bi->softDeletions); } @@ -2716,11 +2716,11 @@ static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo) /* If the block is still healthy erase it and mark as clean. * If the block has had a data failure, then retire it. */ - + T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, (TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR), blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : "")); - + bi->blockState = YAFFS_BLOCK_STATE_DIRTY; if (!bi->needsRetiring) { @@ -2733,7 +2733,7 @@ static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo) } } - if (erasedOk && + if (erasedOk && ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) { int i; for (i = 0; i < dev->nChunksPerBlock; i++) { @@ -2784,7 +2784,7 @@ static int yaffs_FindBlockForAllocation(yaffs_Device * dev) return -1; } - + /* Find an empty block. */ for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { @@ -2825,13 +2825,13 @@ static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev) int reservedChunks; int reservedBlocks = dev->nReservedBlocks; int checkpointBlocks; - + checkpointBlocks = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; if(checkpointBlocks < 0) checkpointBlocks = 0; - + reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); - + return (dev->nFreeChunks > reservedChunks); } @@ -2878,10 +2878,10 @@ static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockIn if(blockUsedPtr) *blockUsedPtr = bi; - + return retVal; } - + T(YAFFS_TRACE_ERROR, (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); @@ -2924,7 +2924,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) yaffs_Object *object; isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT); - + bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; T(YAFFS_TRACE_TRACING, @@ -2952,7 +2952,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) } else { __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); - + yaffs_VerifyBlock(dev,bi,block); for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock; @@ -2979,7 +2979,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) ("Collecting page %d, %d %d %d " TENDSTR), chunkInBlock, tags.objectId, tags.chunkId, tags.byteCount)); - + if(object && !yaffs_SkipVerification(dev)){ if(tags.chunkId == 0) matchingChunk = object->chunkId; @@ -2987,12 +2987,12 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) matchingChunk = oldChunk; /* Defeat the test */ else matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL); - + if(oldChunk != matchingChunk) T(YAFFS_TRACE_ERROR, (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), oldChunk,matchingChunk,tags.objectId, tags.chunkId)); - + } if (!object) { @@ -3007,7 +3007,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) && tags.chunkId != 0) { /* Data chunk in a deleted file, throw it away * It's a soft deleted data chunk, - * No need to copy this, just forget about it and + * No need to copy this, just forget about it and * fix up the object. */ @@ -3057,7 +3057,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) oh->shadowsObject = -1; tags.extraShadows = 0; tags.extraIsShrinkHeader = 0; - + yaffs_VerifyObjectHeader(object,oh,&tags,1); } @@ -3116,7 +3116,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) } yaffs_VerifyCollectedBlock(dev,bi,block); - + if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) { T(YAFFS_TRACE_GC, (TSTR @@ -3144,21 +3144,21 @@ static int yaffs_CheckGarbageCollection(yaffs_Device * dev) int aggressive; int gcOk = YAFFS_OK; int maxTries = 0; - + int checkpointBlockAdjust; if (dev->isDoingGC) { /* Bail out so we don't get recursive gc */ return YAFFS_OK; } - + /* This loop should pass the first time. * We'll only see looping here if the erase of the collected block fails. */ do { maxTries++; - + checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint); if(checkpointBlockAdjust < 0) checkpointBlockAdjust = 0; @@ -3343,11 +3343,11 @@ static int yaffs_CheckFileSanity(yaffs_Object * in) static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, int chunkInNAND, int inScan) { - /* NB inScan is zero unless scanning. - * For forward scanning, inScan is > 0; + /* NB inScan is zero unless scanning. + * For forward scanning, inScan is > 0; * for backward scanning inScan is < 0 */ - + yaffs_Tnode *tn; yaffs_Device *dev = in->myDev; int existingChunk; @@ -3371,7 +3371,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, return YAFFS_OK; } - tn = yaffs_AddOrFindLevel0Tnode(dev, + tn = yaffs_AddOrFindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode, NULL); @@ -3383,7 +3383,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, if (inScan != 0) { /* If we're scanning then we need to test for duplicates - * NB This does not need to be efficient since it should only ever + * NB This does not need to be efficient since it should only ever * happen when the power fails during a write, then only one * chunk should ever be affected. * @@ -3424,7 +3424,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, } - /* NB The deleted flags should be false, otherwise the chunks will + /* NB The deleted flags should be false, otherwise the chunks will * not be loaded during a scan */ @@ -3435,7 +3435,7 @@ static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, (in->myDev->isYaffs2 || existingChunk <= 0 || ((existingSerial + 1) & 3) == newSerial)) { - /* Forward scanning. + /* Forward scanning. * Use new * Delete the old one and drop through to update the tnode */ @@ -3476,7 +3476,7 @@ static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode, (TSTR("Chunk %d not found zero instead" TENDSTR), chunkInNAND)); /* get sane (zero) data if you read a hole */ - memset(buffer, 0, in->myDev->nDataBytesPerChunk); + memset(buffer, 0, in->myDev->nDataBytesPerChunk); return 0; } @@ -3491,7 +3491,7 @@ void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn) if (chunkId <= 0) return; - + dev->nDeletions++; block = chunkId / dev->nChunksPerBlock; @@ -3500,8 +3500,8 @@ void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn) 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); @@ -3619,7 +3619,7 @@ int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1]; yaffs_ObjectHeader *oh = NULL; - + yaffs_strcpy(oldName,"silly old name"); if (!in->fake || force) { @@ -3635,9 +3635,9 @@ int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, if (prevChunkId >= 0) { result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, buffer, &oldTags); - + yaffs_VerifyObjectHeader(in,oh,&oldTags,0); - + memcpy(oldName, oh->name, sizeof(oh->name)); } @@ -3765,11 +3765,11 @@ int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, /*------------------------ Short Operations Cache ---------------------------------------- * In many situations where there is no high level buffering (eg WinCE) a lot of - * reads might be short sequential reads, and a lot of writes may be short + * reads might be short sequential reads, and a lot of writes may be short * sequential writes. eg. scanning/writing a jpeg file. - * In these cases, a short read/write cache can provide a huge perfomance benefit + * In these cases, a short read/write cache can provide a huge perfomance benefit * with dumb-as-a-rock code. - * In Linux, the page cache provides read buffering aand the short op cache provides write + * In Linux, the page cache provides read buffering aand the short op cache provides write * buffering. * * There are a limited number (~10) of cache chunks per device so that we don't @@ -3782,14 +3782,14 @@ static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj) int i; yaffs_ChunkCache *cache; int nCaches = obj->myDev->nShortOpCaches; - + for(i = 0; i < nCaches; i++){ cache = &dev->srCache[i]; if (cache->object == obj && cache->dirty) return 1; } - + return 0; } @@ -3855,7 +3855,7 @@ void yaffs_FlushEntireDeviceCache(yaffs_Device *dev) yaffs_Object *obj; int nCaches = dev->nShortOpCaches; int i; - + /* Find a dirty object in the cache and flush it... * until there are no further dirty objects. */ @@ -3865,18 +3865,18 @@ void yaffs_FlushEntireDeviceCache(yaffs_Device *dev) if (dev->srCache[i].object && dev->srCache[i].dirty) obj = dev->srCache[i].object; - + } if(obj) yaffs_FlushFilesChunkCache(obj); - + } while(obj); - + } /* Grab us a cache chunk for use. - * First look for an empty one. + * First look for an empty one. * Then look for the least recently used non-dirty one. * Then look for the least recently used dirty one...., flush and look again. */ @@ -3888,7 +3888,7 @@ static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev) if (dev->nShortOpCaches > 0) { for (i = 0; i < dev->nShortOpCaches; i++) { - if (!dev->srCache[i].object) + if (!dev->srCache[i].object) return &dev->srCache[i]; } @@ -4049,14 +4049,14 @@ static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in) static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head) { yaffs_CheckpointValidity 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))? 1 : 0; } @@ -4065,9 +4065,9 @@ static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head) { yaffs_CheckpointValidity cp; int ok; - + ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); - + if(ok) ok = (cp.structType == sizeof(cp)) && (cp.magic == YAFFS_MAGIC) && @@ -4076,20 +4076,20 @@ static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head) return ok ? 1 : 0; } -static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp, +static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp, yaffs_Device *dev) { cp->nErasedBlocks = dev->nErasedBlocks; cp->allocationBlock = dev->allocationBlock; cp->allocationPage = dev->allocationPage; cp->nFreeChunks = dev->nFreeChunks; - + cp->nDeletedFiles = dev->nDeletedFiles; cp->nUnlinkedFiles = dev->nUnlinkedFiles; cp->nBackgroundDeletions = dev->nBackgroundDeletions; cp->sequenceNumber = dev->sequenceNumber; cp->oldestDirtySequence = dev->oldestDirtySequence; - + } static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev, @@ -4099,7 +4099,7 @@ static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev, dev->allocationBlock = cp->allocationBlock; dev->allocationPage = cp->allocationPage; dev->nFreeChunks = cp->nFreeChunks; - + dev->nDeletedFiles = cp->nDeletedFiles; dev->nUnlinkedFiles = cp->nUnlinkedFiles; dev->nBackgroundDeletions = cp->nBackgroundDeletions; @@ -4115,20 +4115,20 @@ static int yaffs_WriteCheckpointDevice(yaffs_Device *dev) __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); int ok; - + /* Write device runtime values*/ yaffs_DeviceToCheckpointDevice(&cp,dev); cp.structType = sizeof(cp); - + ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); - + /* Write block info */ if(ok) { nBytes = nBlocks * sizeof(yaffs_BlockInfo); ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes); } - - /* Write chunk bits */ + + /* Write chunk bits */ if(ok) { nBytes = nBlocks * dev->chunkBitmapStride; ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes); @@ -4143,28 +4143,28 @@ static int yaffs_ReadCheckpointDevice(yaffs_Device *dev) __u32 nBytes; __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); - int ok; - + int ok; + ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); if(!ok) return 0; - + if(cp.structType != sizeof(cp)) return 0; - - + + yaffs_CheckpointDeviceToDevice(dev,&cp); - + nBytes = nBlocks * sizeof(yaffs_BlockInfo); - + ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes); - + if(!ok) return 0; nBytes = nBlocks * dev->chunkBitmapStride; - + ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes); - + return ok ? 1 : 0; } @@ -4175,7 +4175,7 @@ static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, cp->objectId = obj->objectId; cp->parentId = (obj->parent) ? obj->parent->objectId : 0; cp->chunkId = obj->chunkId; - cp->variantType = obj->variantType; + cp->variantType = obj->variantType; cp->deleted = obj->deleted; cp->softDeleted = obj->softDeleted; cp->unlinked = obj->unlinked; @@ -4184,7 +4184,7 @@ static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, cp->unlinkAllowed = obj->unlinkAllowed; cp->serial = obj->serial; cp->nDataChunks = obj->nDataChunks; - + if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) @@ -4195,9 +4195,9 @@ static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb { yaffs_Object *parent; - + obj->objectId = cp->objectId; - + if(cp->parentId) parent = yaffs_FindOrCreateObjectByNumber( obj->myDev, @@ -4205,12 +4205,12 @@ static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb YAFFS_OBJECT_TYPE_DIRECTORY); else parent = NULL; - + if(parent) yaffs_AddObjectToDirectory(parent, obj); - + obj->chunkId = cp->chunkId; - obj->variantType = cp->variantType; + obj->variantType = cp->variantType; obj->deleted = cp->deleted; obj->softDeleted = cp->softDeleted; obj->unlinked = cp->unlinked; @@ -4219,12 +4219,12 @@ static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb obj->unlinkAllowed = cp->unlinkAllowed; obj->serial = cp->serial; obj->nDataChunks = cp->nDataChunks; - + if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; - + if(obj->objectId >= YAFFS_NOBJECT_BUCKETS) obj->lazyLoaded = 1; } @@ -4232,7 +4232,7 @@ static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointOb static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, - __u32 level, int chunkOffset) + __u32 level, int chunkOffset) { int i; yaffs_Device *dev = in->myDev; @@ -4267,17 +4267,17 @@ static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj) { __u32 endMarker = ~0; int ok = 1; - + if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){ ok = yaffs_CheckpointTnodeWorker(obj, obj->variant.fileVariant.top, obj->variant.fileVariant.topLevel, 0); if(ok) - ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) == + ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) == sizeof(endMarker)); } - + return ok ? 1 : 0; } @@ -4289,14 +4289,14 @@ static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; yaffs_Tnode *tn; int nread = 0; - + 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) @@ -4304,27 +4304,27 @@ static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); else ok = 0; - + 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)); - + } T(YAFFS_TRACE_CHECKPOINT,( TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), nread,baseChunk,ok)); - return ok ? 1 : 0; + return ok ? 1 : 0; } - + static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) { @@ -4334,13 +4334,13 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) int ok = 1; struct list_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) { + list_for_each(lh, &dev->objectBucket[i].list) { if (lh) { obj = list_entry(lh, yaffs_Object, hashLink); if (!obj->deferedFree) { @@ -4350,9 +4350,9 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) 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)); - + ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); - + if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){ ok = yaffs_WriteCheckpointTnodes(obj); } @@ -4360,14 +4360,14 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) } } } - + /* 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)); - + return ok ? 1 : 0; } @@ -4378,7 +4378,7 @@ static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) int ok = 1; int done = 0; yaffs_Object *hardList = NULL; - + while(ok && !done) { ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); if(cp.structType != sizeof(cp)) { @@ -4386,10 +4386,10 @@ static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) 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)); - + if(ok && cp.objectId == ~0) done = 1; else if(ok){ @@ -4404,14 +4404,14 @@ static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) hardList; hardList = obj; } - + } } } - + if(ok) yaffs_HardlinkFixup(dev,hardList); - + return ok ? 1 : 0; } @@ -4419,14 +4419,14 @@ static int yaffs_WriteCheckpointSum(yaffs_Device *dev) { __u32 checkpointSum; int ok; - + yaffs_GetCheckpointSum(dev,&checkpointSum); - + ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum)); - + if(!ok) return 0; - + return 1; } @@ -4435,17 +4435,17 @@ static int yaffs_ReadCheckpointSum(yaffs_Device *dev) __u32 checkpointSum0; __u32 checkpointSum1; int ok; - + yaffs_GetCheckpointSum(dev,&checkpointSum0); - + ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1)); - + if(!ok) return 0; - + if(checkpointSum0 != checkpointSum1) return 0; - + return 1; } @@ -4454,15 +4454,15 @@ static int yaffs_WriteCheckpointData(yaffs_Device *dev) { int ok = 1; - + if(dev->skipCheckpointWrite || !dev->isYaffs2){ T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR))); ok = 0; } - + if(ok) ok = yaffs_CheckpointOpen(dev,1); - + if(ok){ T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); ok = yaffs_WriteCheckpointValidityMarker(dev,1); @@ -4479,19 +4479,19 @@ static int yaffs_WriteCheckpointData(yaffs_Device *dev) T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); ok = yaffs_WriteCheckpointValidityMarker(dev,0); } - + if(ok){ ok = yaffs_WriteCheckpointSum(dev); } - - + + if(!yaffs_CheckpointClose(dev)) ok = 0; - + if(ok) - dev->isCheckpointed = 1; - else - dev->isCheckpointed = 0; + dev->isCheckpointed = 1; + else + dev->isCheckpointed = 0; return dev->isCheckpointed; } @@ -4499,17 +4499,17 @@ static int yaffs_WriteCheckpointData(yaffs_Device *dev) static int yaffs_ReadCheckpointData(yaffs_Device *dev) { int ok = 1; - + 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){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); + T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); ok = yaffs_ReadCheckpointValidityMarker(dev,1); } if(ok){ @@ -4517,14 +4517,14 @@ static int yaffs_ReadCheckpointData(yaffs_Device *dev) ok = yaffs_ReadCheckpointDevice(dev); } if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR))); + 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){ ok = yaffs_ReadCheckpointSum(dev); T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok)); @@ -4534,9 +4534,9 @@ static int yaffs_ReadCheckpointData(yaffs_Device *dev) ok = 0; if(ok) - dev->isCheckpointed = 1; - else - dev->isCheckpointed = 0; + dev->isCheckpointed = 1; + else + dev->isCheckpointed = 0; return ok ? 1 : 0; @@ -4544,7 +4544,7 @@ static int yaffs_ReadCheckpointData(yaffs_Device *dev) static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) { - if(dev->isCheckpointed || + if(dev->isCheckpointed || dev->blocksInCheckpoint > 0){ dev->isCheckpointed = 0; yaffs_CheckpointInvalidateStream(dev); @@ -4567,7 +4567,7 @@ int yaffs_CheckpointSave(yaffs_Device *dev) yaffs_InvalidateCheckpoint(dev); yaffs_WriteCheckpointData(dev); } - + T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); return dev->isCheckpointed; @@ -4577,7 +4577,7 @@ int yaffs_CheckpointRestore(yaffs_Device *dev) { int retval; T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); - + retval = yaffs_ReadCheckpointData(dev); if(dev->isCheckpointed){ @@ -4587,7 +4587,7 @@ int yaffs_CheckpointRestore(yaffs_Device *dev) } T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); - + return retval; } @@ -4623,7 +4623,7 @@ int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset, chunk++; /* OK now check for the curveball where the start and end are in - * the same chunk. + * the same chunk. */ if ((start + n) < dev->nDataBytesPerChunk) { nToCopy = n; @@ -4780,7 +4780,7 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, yaffs_ChunkCache *cache; /* If we can't find the data in the cache, then load the cache */ cache = yaffs_FindChunkCache(in, chunk); - + if (!cache && yaffs_CheckSpaceForAllocation(in-> myDev)) { @@ -4793,12 +4793,12 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, cache-> data); } - else if(cache && - !cache->dirty && + else if(cache && + !cache->dirty && !yaffs_CheckSpaceForAllocation(in->myDev)){ /* Drop the cache if it was a read cache item and * no space check has been made for it. - */ + */ cache = NULL; } @@ -4962,7 +4962,7 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) int oldFileSize = in->variant.fileVariant.fileSize; int newSizeOfPartialChunk; int newFullChunks; - + yaffs_Device *dev = in->myDev; yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk); @@ -4986,7 +4986,7 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) if (newSizeOfPartialChunk != 0) { int lastChunk = 1 + newFullChunks; - + __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); /* Got to read and rewrite the last chunk with its new size and zero pad */ @@ -5010,8 +5010,8 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) in->variant.fileVariant.fileSize = 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. @@ -5333,7 +5333,7 @@ static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList) { yaffs_Object *hl; yaffs_Object *in; - + while (hardList) { hl = hardList; hardList = (yaffs_Object *) (hardList->hardLinks.next); @@ -5369,9 +5369,9 @@ static int ybicmp(const void *a, const void *b){ register int ablock = ((yaffs_BlockIndex *)a)->block; register int bblock = ((yaffs_BlockIndex *)b)->block; if( aseq == bseq ) - return ablock - bblock; + return ablock - bblock; else - return aseq - bseq; + return aseq - bseq; } @@ -5396,9 +5396,9 @@ static int yaffs_Scan(yaffs_Device * dev) yaffs_Object *in; yaffs_Object *parent; int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - + int alloc_failed = 0; - + __u8 *chunkData; @@ -5409,9 +5409,9 @@ static int yaffs_Scan(yaffs_Device * dev) (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), dev->internalStartBlock, dev->internalEndBlock)); @@ -5540,7 +5540,7 @@ static int yaffs_Scan(yaffs_Device * dev) /*T((" %d %d deleted\n",blk,c)); */ } else if (!tags.chunkUsed) { /* An unassigned chunk in the block - * This means that either the block is empty or + * This means that either the block is empty or * this is the one being allocated from */ @@ -5557,9 +5557,9 @@ static int yaffs_Scan(yaffs_Device * dev) state = YAFFS_BLOCK_STATE_ALLOCATING; dev->allocationBlock = blk; dev->allocationPage = c; - dev->allocationBlockFinder = blk; + 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 */ @@ -5589,7 +5589,7 @@ static int yaffs_Scan(yaffs_Device * dev) /* PutChunkIntoFile checks for a clash (two data chunks with * the same chunkId). */ - + if(!in) alloc_failed = 1; @@ -5597,11 +5597,11 @@ static int yaffs_Scan(yaffs_Device * dev) if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1)) alloc_failed = 1; } - + endpos = (tags.chunkId - 1) * dev->nDataBytesPerChunk + tags.byteCount; - if (in && + if (in && in->variantType == YAFFS_OBJECT_TYPE_FILE && in->variant.fileVariant.scannedFileSize < endpos) { @@ -5633,7 +5633,7 @@ static int yaffs_Scan(yaffs_Device * dev) tags.objectId); if (in && in->variantType != oh->type) { /* This should not happen, but somehow - * Wev'e ended up with an objectId that has been reused but not yet + * Wev'e ended up with an objectId that has been reused but not yet * deleted, and worse still it has changed type. Delete the old object. */ @@ -5649,7 +5649,7 @@ static int yaffs_Scan(yaffs_Device * dev) if(!in) alloc_failed = 1; - + if (in && oh->shadowsObject > 0) { yaffs_HandleShadowedObject(dev, oh-> @@ -5772,11 +5772,11 @@ static int yaffs_Scan(yaffs_Device * dev) * Since we might scan a hardlink before its equivalent object is scanned * we put them all in a list. * After scanning is complete, we should have all the objects, so we run through this - * list and fix up all the chains. + * list and fix up all the chains. */ switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: + case YAFFS_OBJECT_TYPE_UNKNOWN: /* Todo got a problem */ break; case YAFFS_OBJECT_TYPE_FILE: @@ -5811,7 +5811,7 @@ static int yaffs_Scan(yaffs_Device * dev) case YAFFS_OBJECT_TYPE_SPECIAL: /* Do nothing */ break; - case YAFFS_OBJECT_TYPE_SYMLINK: + case YAFFS_OBJECT_TYPE_SYMLINK: in->variant.symLinkVariant.alias = yaffs_CloneString(oh->alias); if(!in->variant.symLinkVariant.alias) @@ -5846,11 +5846,11 @@ static int yaffs_Scan(yaffs_Device * dev) if (blockIndex) { YFREE(blockIndex); } - - + + /* Ok, we've done all the scanning. * Fix up the hard link chains. - * We should now have scanned all the objects, now it's time to add these + * We should now have scanned all the objects, now it's time to add these * hardlinks. */ @@ -5880,9 +5880,9 @@ static int yaffs_Scan(yaffs_Device * dev) if(alloc_failed){ return YAFFS_FAIL; } - + T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); - + return YAFFS_OK; } @@ -5898,7 +5898,7 @@ static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in) if(!in) return; - + #if 0 T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR), in->objectId, @@ -5910,7 +5910,7 @@ static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in) chunkData = yaffs_GetTempBuffer(dev, __LINE__); result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags); - oh = (yaffs_ObjectHeader *) chunkData; + oh = (yaffs_ObjectHeader *) chunkData; in->yst_mode = oh->yst_mode; #ifdef CONFIG_YAFFS_WINCE @@ -5927,17 +5927,17 @@ static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in) in->yst_mtime = oh->yst_mtime; in->yst_ctime = oh->yst_ctime; in->yst_rdev = oh->yst_rdev; - + #endif yaffs_SetObjectName(in, oh->name); - + if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){ in->variant.symLinkVariant.alias = yaffs_CloneString(oh->alias); if(!in->variant.symLinkVariant.alias) alloc_failed = 1; /* Not returned to caller */ } - + yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__); } } @@ -5965,13 +5965,13 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; int itsUnlinked; __u8 *chunkData; - + int fileSize; int isShrink; int foundChunksInBlock; int equivalentObjectId; int alloc_failed = 0; - + yaffs_BlockIndex *blockIndex = NULL; int altBlockIndex = 0; @@ -5991,20 +5991,20 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); - + if(!blockIndex) { blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); altBlockIndex = 1; } - + if(!blockIndex) { T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); return YAFFS_FAIL; } - + dev->blocksInCheckpoint = 0; - + chunkData = yaffs_GetTempBuffer(dev, __LINE__); /* Scan all the blocks to determine their state */ @@ -6021,15 +6021,15 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; - + T(YAFFS_TRACE_SCAN_DEBUG, (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, state, sequenceNumber)); - + if(state == YAFFS_BLOCK_STATE_CHECKPOINT){ dev->blocksInCheckpoint++; - + } else if (state == YAFFS_BLOCK_STATE_DEAD) { T(YAFFS_TRACE_BAD_BLOCKS, (TSTR("block %d is bad" TENDSTR), blk)); @@ -6079,8 +6079,8 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) } #else { - /* Dungy old bubble sort... */ - + /* Dungy old bubble sort... */ + yaffs_BlockIndex temp; int i; int j; @@ -6097,7 +6097,7 @@ 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; @@ -6108,30 +6108,30 @@ 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 + /* 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; bi = yaffs_GetBlockInfo(dev, blk); - - + + state = bi->blockState; deleted = 0; /* For each chunk in each block that needs scanning.... */ foundChunksInBlock = 0; - for (c = dev->nChunksPerBlock - 1; + for (c = dev->nChunksPerBlock - 1; !alloc_failed && c >= 0 && (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || state == YAFFS_BLOCK_STATE_ALLOCATING); c--) { - /* Scan backwards... + /* Scan backwards... * Read the tags and decide what to do */ - + chunk = blk * dev->nChunksPerBlock + c; result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, @@ -6145,14 +6145,14 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) * it is a chunk that was skipped due to failing the erased * check. Just skip it so that it can be deleted. * But, more typically, We get here when this is an unallocated - * chunk and his means that either the block is empty or + * chunk and his means that either the block is empty or * this is the one being allocated from */ if(foundChunksInBlock) { /* This is a chunk that was skipped due to failing the erased check */ - + } else if (c == 0) { /* We're looking at the first chunk in the block so the block is unused */ state = YAFFS_BLOCK_STATE_EMPTY; @@ -6160,9 +6160,9 @@ 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, (TSTR (" Allocating from %d %d" @@ -6171,34 +6171,34 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) state = YAFFS_BLOCK_STATE_ALLOCATING; dev->allocationBlock = blk; dev->allocationPage = c; - dev->allocationBlockFinder = blk; + dev->allocationBlockFinder = blk; } else { /* This is a partially written block that is not * the current allocation block. This block must have * had a write failure, so set up for retirement. */ - + bi->needsRetiring = 1; bi->gcPrioritise = 1; - + T(YAFFS_TRACE_ALWAYS, (TSTR("Partially written block %d being set for retirement" TENDSTR), blk)); } } - + } dev->nFreeChunks++; - + } else if (tags.chunkId > 0) { /* chunkId > 0 so it is a data chunk... */ unsigned int endpos; __u32 chunkBase = (tags.chunkId - 1) * dev->nDataBytesPerChunk; - + foundChunksInBlock = 1; @@ -6213,7 +6213,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) /* Out of memory */ alloc_failed = 1; } - + if (in && in->variantType == YAFFS_OBJECT_TYPE_FILE && chunkBase < @@ -6224,14 +6224,14 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) alloc_failed = 1; } - /* File size is calculated by looking at the data chunks if we have not + /* File size is calculated by looking at the data chunks if we have not * seen an object header yet. Stop this practice once we find an object header. */ endpos = (tags.chunkId - 1) * dev->nDataBytesPerChunk + tags.byteCount; - + if (!in->valid && /* have not got an object header yet */ in->variant.fileVariant. scannedFileSize < endpos) { @@ -6277,7 +6277,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) ) { /* 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 + * TODO In future we can probably defer reading the chunk and * living with invalid data until needed. */ @@ -6305,12 +6305,12 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) if (in->valid) { /* We have already filled this one. - * We have a duplicate that will be discarded, but + * We have a duplicate that will be discarded, but * we first have to suck out resize info if it is a file. */ - if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && - ((oh && + if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && + ((oh && oh-> type == YAFFS_OBJECT_TYPE_FILE)|| (tags.extraHeaderInfoAvailable && tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE)) @@ -6361,7 +6361,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) YAFFS_OBJECTID_LOSTNFOUND)) { /* We only load some info, don't fiddle with directory structure */ in->valid = 1; - + if(oh) { in->variantType = oh->type; @@ -6380,13 +6380,13 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) in->yst_mtime = oh->yst_mtime; in->yst_ctime = oh->yst_ctime; in->yst_rdev = oh->yst_rdev; - + #endif } else { in->variantType = tags.extraObjectType; in->lazyLoaded = 1; } - + in->chunkId = chunk; } else if (!in->valid) { @@ -6394,7 +6394,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) in->valid = 1; in->chunkId = chunk; - + if(oh) { in->variantType = oh->type; @@ -6415,21 +6415,21 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) in->yst_rdev = oh->yst_rdev; #endif - if (oh->shadowsObject > 0) + if (oh->shadowsObject > 0) yaffs_HandleShadowedObject(dev, oh-> shadowsObject, 1); - + yaffs_SetObjectName(in, oh->name); parent = yaffs_FindOrCreateObjectByNumber - (dev, oh->parentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); + (dev, oh->parentObjectId, + YAFFS_OBJECT_TYPE_DIRECTORY); fileSize = oh->fileSize; - isShrink = oh->isShrink; + isShrink = oh->isShrink; equivalentObjectId = oh->equivalentObjectId; } @@ -6437,8 +6437,8 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) 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; @@ -6488,11 +6488,11 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) * Since we might scan a hardlink before its equivalent object is scanned * we put them all in a list. * After scanning is complete, we should have all the objects, so we run - * through this list and fix up all the chains. + * through this list and fix up all the chains. */ switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: + case YAFFS_OBJECT_TYPE_UNKNOWN: /* Todo got a problem */ break; case YAFFS_OBJECT_TYPE_FILE: @@ -6501,7 +6501,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) scannedFileSize < fileSize) { /* This covers the case where the file size is greater * than where the data is - * This will happen if the file is resized to be larger + * This will happen if the file is resized to be larger * than its current data extents. */ in->variant.fileVariant.fileSize = fileSize; @@ -6536,13 +6536,13 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) yaffs_CloneString(oh-> alias); if(!in->variant.symLinkVariant.alias) - alloc_failed = 1; + alloc_failed = 1; } break; } } - + } } /* End of scanning for each chunk */ @@ -6563,19 +6563,19 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) } - if (altBlockIndex) + if (altBlockIndex) YFREE_ALT(blockIndex); else YFREE(blockIndex); - + /* Ok, we've done all the scanning. * Fix up the hard link chains. - * We should now have scanned all the objects, now it's time to add these + * We should now have scanned all the objects, now it's time to add these * hardlinks. */ yaffs_HardlinkFixup(dev,hardList); - - + + /* * Sort out state of unlinked and deleted objects. */ @@ -6608,7 +6608,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) } yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - + if(alloc_failed){ return YAFFS_FAIL; } @@ -6623,10 +6623,10 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj) { yaffs_Device *dev = obj->myDev; - + if(dev && dev->removeObjectCallback) dev->removeObjectCallback(obj); - + list_del_init(&obj->siblings); obj->parent = NULL; } @@ -6704,7 +6704,7 @@ yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, list_for_each(i, &directory->variant.directoryVariant.children) { if (i) { l = list_entry(i, yaffs_Object, siblings); - + yaffs_CheckObjectDetailsLoaded(l); /* Special case for lost-n-found */ @@ -6712,7 +6712,7 @@ yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) { return l; } - } else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0) + } else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0) { /* LostnFound cunk called Objxxx * Do a real check @@ -6784,7 +6784,7 @@ yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj) int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize) { memset(name, 0, buffSize * sizeof(YCHAR)); - + yaffs_CheckObjectDetailsLoaded(obj); if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { @@ -7016,13 +7016,13 @@ static int yaffs_CheckDevFunctions(const yaffs_Device * dev) static int yaffs_CreateInitialDirectories(yaffs_Device *dev) { /* Initialise the unlinked, deleted, root and lost and found directories */ - + dev->lostNFoundDir = dev->rootDir = NULL; dev->unlinkedDir = dev->deletedDir = NULL; dev->unlinkedDir = yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); - + dev->deletedDir = yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); @@ -7032,12 +7032,12 @@ static int yaffs_CreateInitialDirectories(yaffs_Device *dev) dev->lostNFoundDir = yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, YAFFS_LOSTNFOUND_MODE | S_IFDIR); - + if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){ yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); return YAFFS_OK; } - + return YAFFS_FAIL; } @@ -7071,12 +7071,12 @@ int yaffs_GutsInitialise(yaffs_Device * dev) /* Check geometry parameters. */ - if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || - (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || - dev->nChunksPerBlock < 2 || - dev->nReservedBlocks < 2 || - dev->internalStartBlock <= 0 || - dev->internalEndBlock <= 0 || + if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || + (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || + dev->nChunksPerBlock < 2 || + dev->nReservedBlocks < 2 || + dev->internalStartBlock <= 0 || + dev->internalEndBlock <= 0 || dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2) // otherwise it is too small ) { T(YAFFS_TRACE_ALWAYS, @@ -7122,28 +7122,28 @@ int yaffs_GutsInitialise(yaffs_Device * dev) /* OK now calculate a few things for the device */ - + /* - * Calculate all the chunk size manipulation numbers: + * 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 */ + /* 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 */ + /* 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; } - + /* * Calculate chunkGroupBits. @@ -7151,9 +7151,9 @@ int yaffs_GutsInitialise(yaffs_Device * dev) */ x = dev->nChunksPerBlock * (dev->internalEndBlock + 1); - + bits = ShiftsGE(x); - + /* Set up tnode width if wide tnodes are enabled. */ if(!dev->wideTnodesDisabled){ /* bits must be even so that we end up with 32-bit words */ @@ -7166,20 +7166,20 @@ int yaffs_GutsInitialise(yaffs_Device * dev) } else dev->tnodeWidth = 16; - + dev->tnodeMask = (1<<dev->tnodeWidth)-1; - + /* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled), * so if the bitwidth of the * chunk range we're using is greater than 16 we need * to figure out chunk shift and chunkGroupSize */ - + if (bits <= dev->tnodeWidth) dev->chunkGroupBits = 0; else dev->chunkGroupBits = bits - dev->tnodeWidth; - + dev->chunkGroupSize = 1 << dev->chunkGroupBits; @@ -7217,11 +7217,11 @@ int yaffs_GutsInitialise(yaffs_Device * dev) /* Initialise temporary buffers and caches. */ if(!yaffs_InitialiseTempBuffers(dev)) init_failed = 1; - + dev->srCache = NULL; dev->gcCleanupList = NULL; - - + + if (!init_failed && dev->nShortOpCaches > 0) { int i; @@ -7233,10 +7233,10 @@ int yaffs_GutsInitialise(yaffs_Device * dev) } buf = dev->srCache = YMALLOC(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; @@ -7245,12 +7245,12 @@ int yaffs_GutsInitialise(yaffs_Device * dev) } if(!buf) init_failed = 1; - + dev->srLastUse = 0; } dev->cacheHits = 0; - + if(!init_failed){ dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); if(!dev->gcCleanupList) @@ -7262,7 +7262,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev) } if(!init_failed && !yaffs_InitialiseBlocks(dev)) init_failed = 1; - + yaffs_InitialiseTnodes(dev); yaffs_InitialiseObjects(dev); @@ -7278,14 +7278,14 @@ int yaffs_GutsInitialise(yaffs_Device * dev) (TSTR("yaffs: restored from checkpoint" TENDSTR))); } else { - /* Clean up the mess caused by an aborted checkpoint load - * and scan backwards. + /* Clean up the mess caused by an aborted checkpoint load + * and scan backwards. */ yaffs_DeinitialiseBlocks(dev); yaffs_DeinitialiseTnodes(dev); yaffs_DeinitialiseObjects(dev); - - + + dev->nErasedBlocks = 0; dev->nFreeChunks = 0; dev->allocationBlock = -1; @@ -7297,7 +7297,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev) if(!init_failed && !yaffs_InitialiseBlocks(dev)) init_failed = 1; - + yaffs_InitialiseTnodes(dev); yaffs_InitialiseObjects(dev); @@ -7311,7 +7311,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev) if(!yaffs_Scan(dev)) init_failed = 1; } - + if(init_failed){ /* Clean up the mess */ T(YAFFS_TRACE_TRACING, @@ -7332,7 +7332,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev) yaffs_VerifyFreeChunks(dev); yaffs_VerifyBlocks(dev); - + T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR))); @@ -7416,7 +7416,7 @@ int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev) #endif nFree += dev->nDeletedFiles; - + /* Now count the number of dirty chunks in the cache and subtract those */ { @@ -7430,12 +7430,12 @@ int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev) nFree -= nDirtyCacheChunks; 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 = 0; - + nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); if (nFree < 0) @@ -7451,10 +7451,10 @@ static void yaffs_VerifyFreeChunks(yaffs_Device * dev) { int counted; int difference; - + if(yaffs_SkipVerification(dev)) return; - + counted = yaffs_CountFreeChunks(dev); difference = dev->nFreeChunks - counted; @@ -7470,11 +7470,11 @@ static void yaffs_VerifyFreeChunks(yaffs_Device * dev) /*---------------------------------------- YAFFS test code ----------------------*/ #define yaffs_CheckStruct(structure,syze, name) \ - if(sizeof(structure) != syze) \ + if(sizeof(structure) != syze) \ { \ - T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\ + T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\ name,syze,sizeof(structure))); \ - return YAFFS_FAIL; \ + return YAFFS_FAIL; \ } static int yaffs_CheckStructures(void) diff --git a/fs/yaffs2/yaffs_guts.h b/fs/yaffs2/yaffs_guts.h index ecf701f5a08..1f75efd0981 100644 --- a/fs/yaffs2/yaffs_guts.h +++ b/fs/yaffs2/yaffs_guts.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -22,11 +22,11 @@ #define YAFFS_OK 1 #define YAFFS_FAIL 0 -/* Give us a Y=0x59, - * Give us an A=0x41, - * Give us an FF=0xFF +/* Give us a Y=0x59, + * Give us an A=0x41, + * Give us an FF=0xFF * Give us an S=0x53 - * And what have we got... + * And what have we got... */ #define YAFFS_MAGIC 0x5941FF53 @@ -102,7 +102,7 @@ * The range is limited slightly to help distinguish bad numbers from good. * This also allows us to perhaps in the future use special numbers for * special purposes. - * EFFFFF00 allows the allocation of 8 blocks per second (~1Mbytes) for 15 years, + * EFFFFF00 allows the allocation of 8 blocks per second (~1Mbytes) for 15 years, * and is a larger number than the lifetime of a 2GB device. */ #define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 @@ -178,7 +178,7 @@ typedef struct { /* The following stuff only has meaning when we read */ yaffs_ECCResult eccResult; - unsigned blockBad; + unsigned blockBad; /* YAFFS 1 stuff */ unsigned chunkDeleted; /* The chunk is marked deleted */ @@ -244,29 +244,29 @@ typedef enum { /* This block is empty */ YAFFS_BLOCK_STATE_ALLOCATING, - /* This block is partially allocated. + /* This block is partially allocated. * At least one page holds valid data. * This is the one currently being used for page * allocation. Should never be more than one of these */ - YAFFS_BLOCK_STATE_FULL, + YAFFS_BLOCK_STATE_FULL, /* All the pages in this block have been allocated. */ YAFFS_BLOCK_STATE_DIRTY, - /* All pages have been allocated and deleted. + /* All pages have been allocated and deleted. * Erase me, reuse me. */ - YAFFS_BLOCK_STATE_CHECKPOINT, + YAFFS_BLOCK_STATE_CHECKPOINT, /* This block is assigned to holding checkpoint data. */ - YAFFS_BLOCK_STATE_COLLECTING, + YAFFS_BLOCK_STATE_COLLECTING, /* This block is being garbage collected */ - YAFFS_BLOCK_STATE_DEAD + YAFFS_BLOCK_STATE_DEAD /* This block has failed and is not in use */ } yaffs_BlockState; @@ -279,11 +279,11 @@ typedef struct { int pagesInUse:10; /* number of pages in use */ unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */ __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ - /* and retire the 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. + __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 */ @@ -408,7 +408,7 @@ struct yaffs_ObjectStruct { __u8 renameAllowed:1; /* Some objects are not allowed to be renamed. */ __u8 unlinkAllowed:1; __u8 dirty:1; /* the object needs to be written to flash */ - __u8 valid:1; /* When the file system is being loaded up, this + __u8 valid:1; /* When the file system is being loaded up, this * object might be created before the data * is available (ie. file data records appear before the header). */ @@ -430,11 +430,11 @@ struct yaffs_ObjectStruct { /* directory structure stuff */ /* also used for linking up the free list */ - struct yaffs_ObjectStruct *parent; + struct yaffs_ObjectStruct *parent; struct list_head siblings; /* Where's my object header in NAND? */ - int chunkId; + int chunkId; int nDataChunks; /* Number of data chunks attached to the file. */ @@ -491,26 +491,26 @@ typedef struct { } yaffs_ObjectBucket; -/* yaffs_CheckpointObject holds the definition of an object as dumped +/* yaffs_CheckpointObject holds the definition of an object as dumped * by checkpointing. */ typedef struct { - int structType; - __u32 objectId; + int structType; + __u32 objectId; __u32 parentId; int chunkId; - + yaffs_ObjectType variantType:3; - __u8 deleted:1; - __u8 softDeleted:1; - __u8 unlinked:1; - __u8 fake:1; + __u8 deleted:1; + __u8 softDeleted:1; + __u8 unlinked:1; + __u8 fake:1; __u8 renameAllowed:1; __u8 unlinkAllowed:1; - __u8 serial; - - int nDataChunks; + __u8 serial; + + int nDataChunks; __u32 fileSizeOrEquivalentObjectId; }yaffs_CheckpointObject; @@ -540,14 +540,14 @@ struct yaffs_DeviceStruct { int endBlock; /* End block we're allowed to use */ int nReservedBlocks; /* We want this tuneable so that we can reduce */ /* reserved blocks on NOR and RAM. */ - - + + /* Stuff used by the shared space checkpointing mechanism */ /* If this value is zero, then this mechanism is disabled */ - + int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */ - + int nShortOpCaches; /* If <= 0, then short op caching is disabled, else @@ -561,8 +561,8 @@ 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, @@ -588,21 +588,21 @@ struct yaffs_DeviceStruct { #endif int isYaffs2; - - /* The removeObjectCallback function must be supplied by OS flavours that + + /* The removeObjectCallback function must be supplied by OS flavours that * need it. The Linux kernel does not use this, but yaffs direct does use * it to implement the faster readdir */ void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); - + /* Callback to mark the superblock dirsty */ void (*markSuperBlockDirty)(void * superblock); - + int wideTnodesDisabled; /* Set to disable wide tnodes */ - + /* End of stuff that must be set before initialisation. */ - + /* Checkpoint control. Can be set before or after initialisation */ __u8 skipCheckpointRead; __u8 skipCheckpointWrite; @@ -611,21 +611,21 @@ struct yaffs_DeviceStruct { __u16 chunkGroupBits; /* 0 for devices <= 32MB. else log2(nchunks) - 16 */ __u16 chunkGroupSize; /* == 2^^chunkGroupBits */ - + /* Stuff to support wide tnodes */ __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; - + /* XXX U-BOOT XXX */ #if 0 @@ -636,12 +636,12 @@ struct yaffs_DeviceStruct { void (*putSuperFunc) (struct super_block * sb); #endif #endif - __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer + __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer * at compile time so we have to allocate it. */ int isMounted; - + int isCheckpointed; @@ -650,7 +650,7 @@ struct yaffs_DeviceStruct { int internalEndBlock; int blockOffset; int chunkOffset; - + /* Runtime checkpointing stuff */ int checkpointPageSequence; /* running sequence number of checkpoint pages */ @@ -666,13 +666,13 @@ struct yaffs_DeviceStruct { int checkpointMaxBlocks; __u32 checkpointSum; __u32 checkpointXor; - + /* Block Info */ yaffs_BlockInfo *blockInfo; __u8 *chunkBits; /* bitmap of chunks in use */ unsigned blockInfoAlt:1; /* was allocated using alternative strategy */ unsigned chunkBitsAlt:1; /* was allocated using alternative strategy */ - int chunkBitmapStride; /* Number of bytes of chunkBits per block. + int chunkBitmapStride; /* Number of bytes of chunkBits per block. * Must be consistent with nChunksPerBlock. */ @@ -720,7 +720,7 @@ struct yaffs_DeviceStruct { int tagsEccUnfixed; int nDeletions; int nUnmarkedDeletions; - + int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */ /* Special directories */ @@ -731,7 +731,7 @@ struct yaffs_DeviceStruct { * __u8 bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; * yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK]; */ - + int bufferedBlock; /* Which block is buffered here? */ int doingBufferedBlockRewrite; @@ -764,7 +764,7 @@ typedef struct yaffs_DeviceStruct yaffs_Device; /* The static layout of bllock usage etc is stored in the super block header */ typedef struct { - int StructType; + int StructType; int version; int checkpointStartBlock; int checkpointEndBlock; @@ -772,12 +772,12 @@ typedef struct { int endBlock; int rfu[100]; } yaffs_SuperBlockHeader; - + /* The CheckpointDevice structure holds the device information that changes at runtime and * must be preserved over unmount/mount cycles. */ typedef struct { - int structType; + int structType; int nErasedBlocks; int allocationBlock; /* Current block being allocated off */ __u32 allocationPage; diff --git a/fs/yaffs2/yaffs_malloc.h b/fs/yaffs2/yaffs_malloc.h index 122fb4c06f8..3ed6175163a 100644 --- a/fs/yaffs2/yaffs_malloc.h +++ b/fs/yaffs2/yaffs_malloc.h @@ -1,6 +1,6 @@ #ifndef __YAFFS_MALLOC_H__ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -13,14 +13,13 @@ * * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. */ - + /* XXX U-BOOT XXX */ #if 0 #include <stdlib.h> -#endif +#endif -void *yaffs_malloc(size_t size); +void *yaffs_malloc(size_t size); void yaffs_free(void *ptr); - -#endif +#endif diff --git a/fs/yaffs2/yaffs_mtdif.c b/fs/yaffs2/yaffs_mtdif.c index 407ef2b4e2c..d0e16d088ef 100644 --- a/fs/yaffs2/yaffs_mtdif.c +++ b/fs/yaffs2/yaffs_mtdif.c @@ -175,7 +175,7 @@ int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data, __u8 *spareAsBytes = (__u8 *) spare; if (data && spare) { - if (dev->useNANDECC) { + if (dev->useNANDECC) { /* Careful, this call adds 2 ints */ /* to the end of the spare data. Calling function */ /* should allocate enough memory for spare, */ diff --git a/fs/yaffs2/yaffs_mtdif.h b/fs/yaffs2/yaffs_mtdif.h index f75e08c23a4..317600cac97 100644 --- a/fs/yaffs2/yaffs_mtdif.h +++ b/fs/yaffs2/yaffs_mtdif.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_mtdif2.c b/fs/yaffs2/yaffs_mtdif2.c index cd2a2a15c76..f569b999f48 100644 --- a/fs/yaffs2/yaffs_mtdif2.c +++ b/fs/yaffs2/yaffs_mtdif2.c @@ -162,7 +162,7 @@ int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, if (tags) yaffs_UnpackTags2(tags, &pt); - + if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; diff --git a/fs/yaffs2/yaffs_mtdif2.h b/fs/yaffs2/yaffs_mtdif2.h index e70d751c21e..b67ba52aa42 100644 --- a/fs/yaffs2/yaffs_mtdif2.h +++ b/fs/yaffs2/yaffs_mtdif2.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_nand.c b/fs/yaffs2/yaffs_nand.c index b20165584fe..e790be61a54 100644 --- a/fs/yaffs2/yaffs_nand.c +++ b/fs/yaffs2/yaffs_nand.c @@ -10,7 +10,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ - + /* XXX U-BOOT XXX */ #include <common.h> @@ -28,9 +28,9 @@ int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, { int result; yaffs_ExtendedTags localTags; - + int realignedChunkInNAND = chunkInNAND - dev->chunkOffset; - + /* If there are no tags provided, use local tags to get prioritised gc working */ if(!tags) tags = &localTags; @@ -42,14 +42,14 @@ int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer, - tags); - if(tags && + tags); + 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; } @@ -60,7 +60,7 @@ int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, { chunkInNAND -= dev->chunkOffset; - + if (tags) { tags->sequenceNumber = dev->sequenceNumber; tags->chunkUsed = 1; diff --git a/fs/yaffs2/yaffs_nand.h b/fs/yaffs2/yaffs_nand.h index 8ed1a2d5c4a..48e3f7ec6dd 100644 --- a/fs/yaffs2/yaffs_nand.h +++ b/fs/yaffs2/yaffs_nand.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -41,4 +41,3 @@ int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev); #endif - diff --git a/fs/yaffs2/yaffs_nandemul2k.h b/fs/yaffs2/yaffs_nandemul2k.h index 13520e10593..cd2e96f7ae4 100644 --- a/fs/yaffs2/yaffs_nandemul2k.h +++ b/fs/yaffs2/yaffs_nandemul2k.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_packedtags1.h b/fs/yaffs2/yaffs_packedtags1.h index 627b2f8f528..776c5c256c2 100644 --- a/fs/yaffs2/yaffs_packedtags1.h +++ b/fs/yaffs2/yaffs_packedtags1.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_packedtags2.c b/fs/yaffs2/yaffs_packedtags2.c index 467d5ac1be3..474400999b3 100644 --- a/fs/yaffs2/yaffs_packedtags2.c +++ b/fs/yaffs2/yaffs_packedtags2.c @@ -131,10 +131,10 @@ void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt) (yaffs_PackedTags2TagsPart), &pt->ecc, &ecc); switch(result){ - case 0: - t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; + case 0: + t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; break; - case 1: + case 1: t->eccResult = YAFFS_ECC_RESULT_FIXED; break; case -1: diff --git a/fs/yaffs2/yaffs_packedtags2.h b/fs/yaffs2/yaffs_packedtags2.h index 7c4a72c483d..c2242ffe762 100644 --- a/fs/yaffs2/yaffs_packedtags2.h +++ b/fs/yaffs2/yaffs_packedtags2.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_qsort.c b/fs/yaffs2/yaffs_qsort.c index a74709f0eb2..4d56f96afb1 100644 --- a/fs/yaffs2/yaffs_qsort.c +++ b/fs/yaffs2/yaffs_qsort.c @@ -44,7 +44,7 @@ register TYPE t = *pi; \ *pi++ = *pj; \ *pj++ = t; \ - } while (--i > 0); \ + } while (--i > 0); \ } #define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \ @@ -53,7 +53,7 @@ static __inline void swapfunc(char *a, char *b, int n, int swaptype) { - if (swaptype <= 1) + if (swaptype <= 1) swapcode(long, a, b, n) else swapcode(char, a, b, n) @@ -74,7 +74,7 @@ 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 ? a : c )); } #ifndef min @@ -140,7 +140,7 @@ loop: SWAPINIT(a, es); } if (swap_cnt == 0) { /* Switch to insertion sort */ for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) - for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; + for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; pl -= es) swap(pl, pl - es); return; @@ -153,7 +153,7 @@ loop: SWAPINIT(a, es); vecswap(pb, pn - r, r); if ((r = pb - pa) > es) yaffs_qsort(a, r / es, es, cmp); - if ((r = pd - pc) > es) { + if ((r = pd - pc) > es) { /* Iterate rather than recurse to save stack space */ a = pn - r; n = r / es; diff --git a/fs/yaffs2/yaffs_qsort.h b/fs/yaffs2/yaffs_qsort.h index 3ec73979de0..19083da51a2 100644 --- a/fs/yaffs2/yaffs_qsort.h +++ b/fs/yaffs2/yaffs_qsort.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -18,6 +18,6 @@ #define __YAFFS_QSORT_H__ extern void yaffs_qsort (void *const base, size_t total_elems, size_t size, - int (*cmp)(const void *, const void *)); + int (*cmp)(const void *, const void *)); #endif diff --git a/fs/yaffs2/yaffs_ramdisk.h b/fs/yaffs2/yaffs_ramdisk.h index 045ab42db53..3cff8bee795 100644 --- a/fs/yaffs2/yaffs_ramdisk.h +++ b/fs/yaffs2/yaffs_ramdisk.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_tagscompat.h b/fs/yaffs2/yaffs_tagscompat.h index c1edb6a19ab..a61e3ba14f1 100644 --- a/fs/yaffs2/yaffs_tagscompat.h +++ b/fs/yaffs2/yaffs_tagscompat.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffs_tagsvalidity.h b/fs/yaffs2/yaffs_tagsvalidity.h index ba56727fffa..2fd0c24ed26 100644 --- a/fs/yaffs2/yaffs_tagsvalidity.h +++ b/fs/yaffs2/yaffs_tagsvalidity.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/yaffscfg.c b/fs/yaffs2/yaffscfg.c index a4a0924ef91..3beb34d1459 100644 --- a/fs/yaffs2/yaffscfg.c +++ b/fs/yaffs2/yaffscfg.c @@ -83,7 +83,7 @@ void yaffsfs_LocalInitialisation(void) // NB Though /boot and /flash occupy the same physical device they // are still disticnt "yaffs_Devices. You may think of these as "partitions" // using non-overlapping areas in the same device. -// +// #include "yaffs_ramdisk.h" #include "yaffs_flashif.h" @@ -124,7 +124,7 @@ int yaffs_StartUp(void) // Stuff to configure YAFFS // Stuff to initialise anything special (eg lock semaphore). yaffsfs_LocalInitialisation(); - + // Set up devices /* XXX U-BOOT XXX */ @@ -134,7 +134,7 @@ int yaffs_StartUp(void) ramDev.nChunksPerBlock = 32; ramDev.nReservedBlocks = 2; // Set this smaller for RAM ramDev.startBlock = 1; // Can't use block 0 - ramDev.endBlock = 127; // Last block in 2MB. + ramDev.endBlock = 127; // Last block in 2MB. ramDev.useNANDECC = 1; ramDev.nShortOpCaches = 0; // Disable caching on this device. ramDev.genericDevice = (void *) 0; // Used to identify the device in fstat. @@ -148,7 +148,7 @@ int yaffs_StartUp(void) bootDev.nChunksPerBlock = 32; bootDev.nReservedBlocks = 5; bootDev.startBlock = 1; // Can't use block 0 - bootDev.endBlock = 127; // Last block in 2MB. + bootDev.endBlock = 127; // Last block in 2MB. bootDev.useNANDECC = 0; // use YAFFS's ECC bootDev.nShortOpCaches = 10; // Use caches bootDev.genericDevice = (void *) 1; // Used to identify the device in fstat. @@ -196,13 +196,13 @@ int yaffs_StartUp(void) flashDev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; flashDev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK; } - + /* ... and common functions */ flashDev->eraseBlockInNAND = nandmtd_EraseBlockInNAND; flashDev->initialiseNAND = nandmtd_InitialiseNAND; yaffs_initialise(yaffsfs_config); - + return 0; } @@ -219,19 +219,19 @@ void make_a_file(char *yaffsName,char bval,int sizeOfFile) printf("Error opening file: %d\n", outh); return; } - + memset(buffer,bval,100); - + do{ i = sizeOfFile; if(i > 100) i = 100; sizeOfFile -= i; - + yaffs_write(outh,buffer,i); - + } while (sizeOfFile > 0); - - + + yaffs_close(outh); } @@ -252,7 +252,7 @@ void read_a_file(char *fn) { printf("%02x ",b); i++; - if(i > 32) + if(i > 32) { printf("\n"); i = 0;; @@ -305,7 +305,7 @@ void cmd_yaffs_mread_file(char *fn, char *addr) { int h; struct yaffs_stat s; - + checkMount(); yaffs_stat(fn,&s); @@ -317,7 +317,7 @@ void cmd_yaffs_mread_file(char *fn, char *addr) printf("File not found\n"); return; } - + yaffs_read(h,addr,(int)s.st_size); printf("\t[DONE]\n"); @@ -335,9 +335,9 @@ void cmd_yaffs_mwrite_file(char *fn, char *addr, int size) { printf("Error opening file: %d\n", outh); } - + yaffs_write(outh,addr,size); - + yaffs_close(outh); } @@ -381,7 +381,7 @@ void cmd_yaffs_mkdir(const char *dir) checkMount(); int retval = yaffs_mkdir(dir, 0); - + if ( retval < 0) printf("yaffs_mkdir returning error: %d\n", retval); } @@ -391,7 +391,7 @@ void cmd_yaffs_rmdir(const char *dir) checkMount(); int retval = yaffs_rmdir(dir); - + if ( retval < 0) printf("yaffs_rmdir returning error: %d\n", retval); } @@ -401,7 +401,7 @@ void cmd_yaffs_rm(const char *path) checkMount(); int retval = yaffs_unlink(path); - + if ( retval < 0) printf("yaffs_unlink returning error: %d\n", retval); } @@ -411,7 +411,7 @@ void cmd_yaffs_mv(const char *oldPath, const char *newPath) checkMount(); int retval = yaffs_rename(newPath, oldPath); - + if ( retval < 0) printf("yaffs_unlink returning error: %d\n", retval); } diff --git a/fs/yaffs2/yaffscfg.h b/fs/yaffs2/yaffscfg.h index 6ae169612b8..3503dc863fb 100644 --- a/fs/yaffs2/yaffscfg.h +++ b/fs/yaffs2/yaffscfg.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -43,4 +43,3 @@ void yaffsfs_SetError(int err); int yaffsfs_GetError(void); #endif - diff --git a/fs/yaffs2/yaffsfs.c b/fs/yaffs2/yaffsfs.c index f62c952ddcc..111cb348c0d 100644 --- a/fs/yaffs2/yaffsfs.c +++ b/fs/yaffs2/yaffsfs.c @@ -10,7 +10,7 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ - + /* XXX U-BOOT XXX */ #include <common.h> #include <malloc.h> @@ -44,7 +44,7 @@ static void yaffsfs_RemoveObjectCallback(yaffs_Object *obj); // Handle management. -// +// unsigned int yaffs_wr_attempts; @@ -82,7 +82,7 @@ yaffsfs_Handle *yaffsfs_GetHandlePointer(int h) { return NULL; } - + return &yaffsfs_handle[h]; } @@ -94,7 +94,7 @@ yaffs_Object *yaffsfs_GetHandleObject(int handle) { return h->obj; } - + return NULL; } @@ -107,7 +107,7 @@ static int yaffsfs_GetHandle(void) { int i; yaffsfs_Handle *h; - + for(i = 0; i < YAFFSFS_N_HANDLES; i++) { h = yaffsfs_GetHandlePointer(i); @@ -131,7 +131,7 @@ static int yaffsfs_GetHandle(void) static int yaffsfs_PutHandle(int handle) { yaffsfs_Handle *h = yaffsfs_GetHandlePointer(handle); - + if(h) { h->inUse = 0; @@ -164,7 +164,7 @@ static yaffs_Device *yaffsfs_FindDevice(const char *path, char **restOfPath) yaffs_Device *retval = NULL; int thisMatchLength; int longestMatch = -1; - + // Check all configs, choose the one that: // 1) Actually matches a prefix (ie /a amd /abc will not match // 2) Matches the longest. @@ -173,10 +173,10 @@ static yaffs_Device *yaffsfs_FindDevice(const char *path, char **restOfPath) leftOver = path; p = cfg->prefix; thisMatchLength = 0; - - while(*p && //unmatched part of prefix + + while(*p && //unmatched part of prefix strcmp(p,"/") && // the rest of the prefix is not / (to catch / at end) - *leftOver && + *leftOver && yaffsfs_Match(*p,*leftOver)) { p++; @@ -201,7 +201,7 @@ static yaffs_Object *yaffsfs_FindRoot(const char *path, char **restOfPath) { yaffs_Device *dev; - + dev= yaffsfs_FindDevice(path,restOfPath); if(dev && dev->isMounted) { @@ -216,7 +216,7 @@ static yaffs_Object *yaffsfs_FollowLink(yaffs_Object *obj,int symDepth) while(obj && obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { char *alias = obj->variant.symLinkVariant.alias; - + if(*alias == '/') { // Starts with a /, need to scan from root up @@ -242,12 +242,12 @@ static yaffs_Object *yaffsfs_DoFindDirectory(yaffs_Object *startDir,const char * char *restOfPath; char str[YAFFS_MAX_NAME_LENGTH+1]; int i; - + if(symDepth > YAFFSFS_MAX_SYMLINK_DEREFERENCES) { return NULL; } - + if(startDir) { dir = startDir; @@ -257,20 +257,20 @@ static yaffs_Object *yaffsfs_DoFindDirectory(yaffs_Object *startDir,const char * { dir = yaffsfs_FindRoot(path,&restOfPath); } - + while(dir) - { + { // parse off /. - // curve ball: also throw away surplus '/' + // curve ball: also throw away surplus '/' // eg. "/ram/x////ff" gets treated the same as "/ram/x/ff" while(*restOfPath == '/') { restOfPath++; // get rid of '/' } - + *name = restOfPath; i = 0; - + while(*restOfPath && *restOfPath != '/') { if (i < YAFFS_MAX_NAME_LENGTH) @@ -281,7 +281,7 @@ static yaffs_Object *yaffsfs_DoFindDirectory(yaffs_Object *startDir,const char * } restOfPath++; } - + if(!*restOfPath) { // got to the end of the string @@ -300,14 +300,14 @@ static yaffs_Object *yaffsfs_DoFindDirectory(yaffs_Object *startDir,const char * else { dir = yaffs_FindObjectByName(dir,str); - + while(dir && dir->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { - + dir = yaffsfs_FollowLink(dir,symDepth); - + } - + if(dir && dir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { dir = NULL; @@ -325,19 +325,19 @@ static yaffs_Object *yaffsfs_FindDirectory(yaffs_Object *relativeDirectory,const } // yaffsfs_FindObject turns a path for an existing object into the object -// +// static yaffs_Object *yaffsfs_FindObject(yaffs_Object *relativeDirectory, const char *path,int symDepth) { yaffs_Object *dir; char *name; - + dir = yaffsfs_FindDirectory(relativeDirectory,path,&name,symDepth); - + if(dir && *name) { return yaffs_FindObjectByName(dir,name); } - + return dir; } @@ -355,29 +355,29 @@ int yaffs_open(const char *path, int oflag, int mode) int openDenied = 0; int symDepth = 0; int errorReported = 0; - + int i; - - + + // todo sanity check oflag (eg. can't have O_TRUNC without WRONLY or RDWR - - + + yaffsfs_Lock(); - + handle = yaffsfs_GetHandle(); - + if(handle >= 0) { h = yaffsfs_GetHandlePointer(handle); - - + + // try to find the exisiting object obj = yaffsfs_FindObject(NULL,path,0); - + if(obj && obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { - + obj = yaffsfs_FollowLink(obj,symDepth++); } @@ -385,10 +385,10 @@ int yaffs_open(const char *path, int oflag, int mode) { // Check if the object is already in use alreadyOpen = alreadyExclusive = 0; - + for(i = 0; i <= YAFFSFS_N_HANDLES; i++) { - + if(i != handle && yaffsfs_handle[i].inUse && obj == yaffsfs_handle[i].obj) @@ -405,7 +405,7 @@ int yaffs_open(const char *path, int oflag, int mode) { openDenied = 1; } - + // Open should fail if O_CREAT and O_EXCL are specified if((oflag & O_EXCL) && (oflag & O_CREAT)) { @@ -413,7 +413,7 @@ int yaffs_open(const char *path, int oflag, int mode) yaffsfs_SetError(-EEXIST); errorReported = 1; } - + // Check file permissions if( (oflag & (O_RDWR | O_WRONLY)) == 0 && // ie O_RDONLY !(obj->yst_mode & S_IREAD)) @@ -421,34 +421,34 @@ int yaffs_open(const char *path, int oflag, int mode) openDenied = 1; } - if( (oflag & O_RDWR) && + if( (oflag & O_RDWR) && !(obj->yst_mode & S_IREAD)) { openDenied = 1; } - if( (oflag & (O_RDWR | O_WRONLY)) && + if( (oflag & (O_RDWR | O_WRONLY)) && !(obj->yst_mode & S_IWRITE)) { openDenied = 1; } - + } - + else if((oflag & O_CREAT)) { // Let's see if we can create this file dir = yaffsfs_FindDirectory(NULL,path,&name,0); if(dir) { - obj = yaffs_MknodFile(dir,name,mode,0,0); + obj = yaffs_MknodFile(dir,name,mode,0,0); } else { yaffsfs_SetError(-ENOTDIR); } } - + if(obj && !openDenied) { h->obj = obj; @@ -457,14 +457,14 @@ int yaffs_open(const char *path, int oflag, int mode) h->append = (oflag & O_APPEND) ? 1 : 0; h->exclusive = (oflag & O_EXCL) ? 1 : 0; h->position = 0; - + obj->inUse++; if((oflag & O_TRUNC) && !h->readOnly) { //todo truncate yaffs_ResizeFile(obj,0); } - + } else { @@ -476,23 +476,23 @@ int yaffs_open(const char *path, int oflag, int mode) } handle = -1; } - + } - + yaffsfs_Unlock(); - - return handle; + + return handle; } int yaffs_close(int fd) { yaffsfs_Handle *h = NULL; int retVal = 0; - + yaffsfs_Lock(); h = yaffsfs_GetHandlePointer(fd); - + if(h && h->inUse) { // clean up @@ -508,12 +508,12 @@ int yaffs_close(int fd) else { // bad handle - yaffsfs_SetError(-EBADF); + yaffsfs_SetError(-EBADF); retVal = -1; } - + yaffsfs_Unlock(); - + return retVal; } @@ -524,15 +524,15 @@ int yaffs_read(int fd, void *buf, unsigned int nbyte) int pos = 0; int nRead = -1; int maxRead; - + yaffsfs_Lock(); h = yaffsfs_GetHandlePointer(fd); obj = yaffsfs_GetHandleObject(fd); - + if(!h || !obj) { // bad handle - yaffsfs_SetError(-EBADF); + yaffsfs_SetError(-EBADF); } else if( h && obj) { @@ -551,7 +551,7 @@ int yaffs_read(int fd, void *buf, unsigned int nbyte) nbyte = maxRead; } - + if(nbyte > 0) { nRead = yaffs_ReadDataFromFile(obj,buf,pos,nbyte); @@ -568,14 +568,14 @@ int yaffs_read(int fd, void *buf, unsigned int nbyte) { nRead = 0; } - + } - + yaffsfs_Unlock(); - - + + return (nRead >= 0) ? nRead : -1; - + } int yaffs_write(int fd, const void *buf, unsigned int nbyte) @@ -585,15 +585,15 @@ int yaffs_write(int fd, const void *buf, unsigned int nbyte) int pos = 0; int nWritten = -1; int writeThrough = 0; - + yaffsfs_Lock(); h = yaffsfs_GetHandlePointer(fd); obj = yaffsfs_GetHandleObject(fd); - + if(!h || !obj) { // bad handle - yaffsfs_SetError(-EBADF); + yaffsfs_SetError(-EBADF); } else if( h && obj && h->readOnly) { @@ -609,9 +609,9 @@ int yaffs_write(int fd, const void *buf, unsigned int nbyte) { pos = h->position; } - + nWritten = yaffs_WriteDataToFile(obj,buf,pos,nbyte,writeThrough); - + if(nWritten >= 0) { h->position = pos + nWritten; @@ -620,12 +620,12 @@ int yaffs_write(int fd, const void *buf, unsigned int nbyte) { //todo error } - + } - + yaffsfs_Unlock(); - - + + return (nWritten >= 0) ? nWritten : -1; } @@ -635,43 +635,43 @@ int yaffs_truncate(int fd, off_t newSize) yaffsfs_Handle *h = NULL; yaffs_Object *obj = NULL; int result = 0; - + yaffsfs_Lock(); h = yaffsfs_GetHandlePointer(fd); obj = yaffsfs_GetHandleObject(fd); - + if(!h || !obj) { // bad handle - yaffsfs_SetError(-EBADF); + yaffsfs_SetError(-EBADF); } else { // resize the file result = yaffs_ResizeFile(obj,newSize); - } + } yaffsfs_Unlock(); - - + + return (result) ? 0 : -1; } -off_t yaffs_lseek(int fd, off_t offset, int whence) +off_t yaffs_lseek(int fd, off_t offset, int whence) { yaffsfs_Handle *h = NULL; yaffs_Object *obj = NULL; int pos = -1; int fSize = -1; - + yaffsfs_Lock(); h = yaffsfs_GetHandlePointer(fd); obj = yaffsfs_GetHandleObject(fd); - + if(!h || !obj) { // bad handle - yaffsfs_SetError(-EBADF); + yaffsfs_SetError(-EBADF); } else if(whence == SEEK_SET) { @@ -695,7 +695,7 @@ off_t yaffs_lseek(int fd, off_t offset, int whence) pos = fSize + offset; } } - + if(pos >= 0) { h->position = pos; @@ -705,20 +705,20 @@ off_t yaffs_lseek(int fd, off_t offset, int whence) // todo error } - + yaffsfs_Unlock(); - + return pos; } -int yaffsfs_DoUnlink(const char *path,int isDirectory) +int yaffsfs_DoUnlink(const char *path,int isDirectory) { yaffs_Object *dir = NULL; yaffs_Object *obj = NULL; char *name; int result = YAFFS_FAIL; - + yaffsfs_Lock(); obj = yaffsfs_FindObject(NULL,path,0); @@ -742,25 +742,25 @@ int yaffsfs_DoUnlink(const char *path,int isDirectory) else { result = yaffs_Unlink(dir,name); - + if(result == YAFFS_FAIL && isDirectory) { yaffsfs_SetError(-ENOTEMPTY); } } - + yaffsfs_Unlock(); - + // todo error - + return (result == YAFFS_FAIL) ? -1 : 0; } -int yaffs_rmdir(const char *path) +int yaffs_rmdir(const char *path) { return yaffsfs_DoUnlink(path,1); } -int yaffs_unlink(const char *path) +int yaffs_unlink(const char *path) { return yaffsfs_DoUnlink(path,0); } @@ -774,34 +774,34 @@ int yaffs_rename(const char *oldPath, const char *newPath) char *newname; int result= YAFFS_FAIL; int renameAllowed = 1; - + yaffsfs_Lock(); - + olddir = yaffsfs_FindDirectory(NULL,oldPath,&oldname,0); newdir = yaffsfs_FindDirectory(NULL,newPath,&newname,0); obj = yaffsfs_FindObject(NULL,oldPath,0); - + if(!olddir || !newdir || !obj) { // bad file - yaffsfs_SetError(-EBADF); - renameAllowed = 0; + yaffsfs_SetError(-EBADF); + renameAllowed = 0; } else if(olddir->myDev != newdir->myDev) { // oops must be on same device // todo error yaffsfs_SetError(-EXDEV); - renameAllowed = 0; + renameAllowed = 0; } else if(obj && obj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) { - // It is a directory, check that it is not being renamed to + // It is a directory, check that it is not being renamed to // being its own decendent. // Do this by tracing from the new directory back to the root, checking for obj - + yaffs_Object *xx = newdir; - + while( renameAllowed && xx) { if(xx == obj) @@ -812,15 +812,15 @@ int yaffs_rename(const char *oldPath, const char *newPath) } if(!renameAllowed) yaffsfs_SetError(-EACCESS); } - + if(renameAllowed) { result = yaffs_RenameObject(olddir,oldname,newdir,newname); } - + yaffsfs_Unlock(); - - return (result == YAFFS_FAIL) ? -1 : 0; + + return (result == YAFFS_FAIL) ? -1 : 0; } @@ -838,12 +838,12 @@ static int yaffsfs_DoStat(yaffs_Object *obj,struct yaffs_stat *buf) buf->st_dev = (int)obj->myDev->genericDevice; buf->st_ino = obj->objectId; buf->st_mode = obj->yst_mode & ~S_IFMT; // clear out file type bits - - if(obj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) + + if(obj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) { buf->st_mode |= S_IFDIR; } - else if(obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) + else if(obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { buf->st_mode |= S_IFLNK; } @@ -851,17 +851,17 @@ static int yaffsfs_DoStat(yaffs_Object *obj,struct yaffs_stat *buf) { buf->st_mode |= S_IFREG; } - + buf->st_nlink = yaffs_GetObjectLinkCount(obj); - buf->st_uid = 0; - buf->st_gid = 0;; + buf->st_uid = 0; + buf->st_gid = 0;; buf->st_rdev = obj->yst_rdev; buf->st_size = yaffs_GetObjectFileLength(obj); buf->st_blksize = obj->myDev->nDataBytesPerChunk; buf->st_blocks = (buf->st_size + buf->st_blksize -1)/buf->st_blksize; - buf->yst_atime = obj->yst_atime; - buf->yst_ctime = obj->yst_ctime; - buf->yst_mtime = obj->yst_mtime; + buf->yst_atime = obj->yst_atime; + buf->yst_ctime = obj->yst_ctime; + buf->yst_mtime = obj->yst_mtime; retVal = 0; } return retVal; @@ -870,17 +870,17 @@ static int yaffsfs_DoStat(yaffs_Object *obj,struct yaffs_stat *buf) static int yaffsfs_DoStatOrLStat(const char *path, struct yaffs_stat *buf,int doLStat) { yaffs_Object *obj; - + int retVal = -1; - + yaffsfs_Lock(); obj = yaffsfs_FindObject(NULL,path,0); - + if(!doLStat && obj) { obj = yaffsfs_FollowLink(obj,0); } - + if(obj) { retVal = yaffsfs_DoStat(obj,buf); @@ -890,11 +890,11 @@ static int yaffsfs_DoStatOrLStat(const char *path, struct yaffs_stat *buf,int do // todo error not found yaffsfs_SetError(-ENOENT); } - + yaffsfs_Unlock(); - + return retVal; - + } int yaffs_stat(const char *path, struct yaffs_stat *buf) @@ -910,12 +910,12 @@ int yaffs_lstat(const char *path, struct yaffs_stat *buf) int yaffs_fstat(int fd, struct yaffs_stat *buf) { yaffs_Object *obj; - + int retVal = -1; - + yaffsfs_Lock(); obj = yaffsfs_GetHandleObject(fd); - + if(obj) { retVal = yaffsfs_DoStat(obj,buf); @@ -923,11 +923,11 @@ int yaffs_fstat(int fd, struct yaffs_stat *buf) else { // bad handle - yaffsfs_SetError(-EBADF); + yaffsfs_SetError(-EBADF); } - + yaffsfs_Unlock(); - + return retVal; } @@ -939,14 +939,14 @@ static int yaffsfs_DoChMod(yaffs_Object *obj,mode_t mode) { obj = yaffs_GetEquivalentObject(obj); } - + if(obj) { obj->yst_mode = mode; obj->dirty = 1; result = yaffs_FlushFile(obj,0); } - + return result == YAFFS_OK ? 0 : -1; } @@ -954,12 +954,12 @@ static int yaffsfs_DoChMod(yaffs_Object *obj,mode_t mode) int yaffs_chmod(const char *path, mode_t mode) { yaffs_Object *obj; - + int retVal = -1; - + yaffsfs_Lock(); obj = yaffsfs_FindObject(NULL,path,0); - + if(obj) { retVal = yaffsfs_DoChMod(obj,mode); @@ -969,23 +969,23 @@ int yaffs_chmod(const char *path, mode_t mode) // todo error not found yaffsfs_SetError(-ENOENT); } - + yaffsfs_Unlock(); - + return retVal; - + } int yaffs_fchmod(int fd, mode_t mode) { yaffs_Object *obj; - + int retVal = -1; - + yaffsfs_Lock(); obj = yaffsfs_GetHandleObject(fd); - + if(obj) { retVal = yaffsfs_DoChMod(obj,mode); @@ -993,11 +993,11 @@ int yaffs_fchmod(int fd, mode_t mode) else { // bad handle - yaffsfs_SetError(-EBADF); + yaffsfs_SetError(-EBADF); } - + yaffsfs_Unlock(); - + return retVal; } @@ -1008,7 +1008,7 @@ int yaffs_mkdir(const char *path, mode_t mode) yaffs_Object *dir = NULL; char *name; int retVal= -1; - + yaffsfs_Lock(); parent = yaffsfs_FindDirectory(NULL,path,&name,0); if(parent) @@ -1022,9 +1022,9 @@ int yaffs_mkdir(const char *path, mode_t mode) yaffsfs_SetError(-ENOSPC); // just assume no space for now retVal = -1; } - + yaffsfs_Unlock(); - + return retVal; } @@ -1034,9 +1034,9 @@ int yaffs_mount(const char *path) int result=YAFFS_FAIL; yaffs_Device *dev=NULL; char *dummy; - + T(YAFFS_TRACE_ALWAYS,("yaffs: Mounting %s\n",path)); - + yaffsfs_Lock(); dev = yaffsfs_FindDevice(path,&dummy); if(dev) @@ -1050,7 +1050,7 @@ int yaffs_mount(const char *path) yaffsfs_SetError(-ENOMEM); } retVal = result ? 0 : -1; - + } else { @@ -1065,7 +1065,7 @@ int yaffs_mount(const char *path) } yaffsfs_Unlock(); return retVal; - + } int yaffs_unmount(const char *path) @@ -1073,7 +1073,7 @@ int yaffs_unmount(const char *path) int retVal=-1; yaffs_Device *dev=NULL; char *dummy; - + yaffsfs_Lock(); dev = yaffsfs_FindDevice(path,&dummy); if(dev) @@ -1082,10 +1082,10 @@ int yaffs_unmount(const char *path) { int i; int inUse; - + yaffs_FlushEntireDeviceCache(dev); yaffs_CheckpointSave(dev); - + for(i = inUse = 0; i < YAFFSFS_N_HANDLES && !inUse; i++) { if(yaffsfs_handle[i].inUse && yaffsfs_handle[i].obj->myDev == dev) @@ -1093,11 +1093,11 @@ int yaffs_unmount(const char *path) inUse = 1; // the device is in use, can't unmount } } - + if(!inUse) { yaffs_Deinitialise(dev); - + retVal = 0; } else @@ -1105,23 +1105,23 @@ int yaffs_unmount(const char *path) // todo error can't unmount as files are open yaffsfs_SetError(-EBUSY); } - + } else { //todo error - not mounted. yaffsfs_SetError(-EINVAL); - + } } else { // todo error - no device yaffsfs_SetError(-ENODEV); - } + } yaffsfs_Unlock(); return retVal; - + } loff_t yaffs_freespace(const char *path) @@ -1129,37 +1129,37 @@ loff_t yaffs_freespace(const char *path) loff_t retVal=-1; yaffs_Device *dev=NULL; char *dummy; - + yaffsfs_Lock(); dev = yaffsfs_FindDevice(path,&dummy); if(dev && dev->isMounted) { retVal = yaffs_GetNumberOfFreeChunks(dev); retVal *= dev->nDataBytesPerChunk; - + } else { yaffsfs_SetError(-EINVAL); } - + yaffsfs_Unlock(); - return retVal; + return retVal; } void yaffs_initialise(yaffsfs_DeviceConfiguration *cfgList) { - + yaffsfs_DeviceConfiguration *cfg; - + yaffsfs_configurationList = cfgList; - + yaffsfs_InitHandles(); - + cfg = yaffsfs_configurationList; - + while(cfg && cfg->prefix && cfg->dev) { cfg->dev->isMounted = 0; @@ -1186,7 +1186,7 @@ typedef struct yaffs_Object *dirObj; /* ptr to directory being searched */ yaffs_Object *nextReturn; /* obj to be returned by next readddir */ int offset; - struct list_head others; + struct list_head others; } yaffsfs_DirectorySearchContext; @@ -1199,9 +1199,9 @@ static void yaffsfs_SetDirRewound(yaffsfs_DirectorySearchContext *dsc) if(dsc && dsc->dirObj && dsc->dirObj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY){ - + dsc->offset = 0; - + if( list_empty(&dsc->dirObj->variant.directoryVariant.children)){ dsc->nextReturn = NULL; } else { @@ -1218,16 +1218,16 @@ static void yaffsfs_DirAdvance(yaffsfs_DirectorySearchContext *dsc) if(dsc && dsc->dirObj && dsc->dirObj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY){ - + if( dsc->nextReturn == NULL || list_empty(&dsc->dirObj->variant.directoryVariant.children)){ dsc->nextReturn = NULL; } else { struct list_head *next = dsc->nextReturn->siblings.next; - + if( next == &dsc->dirObj->variant.directoryVariant.children) dsc->nextReturn = NULL; /* end of list */ - else + else dsc->nextReturn = list_entry(next,yaffs_Object,siblings); } } else { @@ -1240,11 +1240,11 @@ static void yaffsfs_RemoveObjectCallback(yaffs_Object *obj) struct list_head *i; yaffsfs_DirectorySearchContext *dsc; - + /* if search contexts not initilised then skip */ if(!search_contexts.next) return; - + /* Iteratethrough the directory search contexts. * If any are the one being removed, then advance the dsc to * the next one to prevent a hanging ptr. @@ -1256,7 +1256,7 @@ static void yaffsfs_RemoveObjectCallback(yaffs_Object *obj) yaffsfs_DirAdvance(dsc); } } - + } yaffs_DIR *yaffs_opendir(const char *dirname) @@ -1264,14 +1264,14 @@ yaffs_DIR *yaffs_opendir(const char *dirname) yaffs_DIR *dir = NULL; yaffs_Object *obj = NULL; yaffsfs_DirectorySearchContext *dsc = NULL; - + yaffsfs_Lock(); - + obj = yaffsfs_FindObject(NULL,dirname,0); - + if(obj && obj->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) { - + dsc = YMALLOC(sizeof(yaffsfs_DirectorySearchContext)); dir = (yaffs_DIR *)dsc; if(dsc) @@ -1281,17 +1281,17 @@ yaffs_DIR *yaffs_opendir(const char *dirname) dsc->dirObj = obj; strncpy(dsc->name,dirname,NAME_MAX); INIT_LIST_HEAD(&dsc->others); - + if(!search_contexts.next) INIT_LIST_HEAD(&search_contexts); - - list_add(&dsc->others,&search_contexts); + + list_add(&dsc->others,&search_contexts); yaffsfs_SetDirRewound(dsc); } - + } - + yaffsfs_Unlock(); - + return dir; } @@ -1299,9 +1299,9 @@ struct yaffs_dirent *yaffs_readdir(yaffs_DIR *dirp) { yaffsfs_DirectorySearchContext *dsc = (yaffsfs_DirectorySearchContext *)dirp; struct yaffs_dirent *retVal = NULL; - + yaffsfs_Lock(); - + if(dsc && dsc->magic == YAFFS_MAGIC){ yaffsfs_SetError(0); if(dsc->nextReturn){ @@ -1324,20 +1324,20 @@ struct yaffs_dirent *yaffs_readdir(yaffs_DIR *dirp) { yaffsfs_SetError(-EBADF); } - + yaffsfs_Unlock(); - + return retVal; - + } void yaffs_rewinddir(yaffs_DIR *dirp) { yaffsfs_DirectorySearchContext *dsc = (yaffsfs_DirectorySearchContext *)dirp; - + yaffsfs_Lock(); - + yaffsfs_SetDirRewound(dsc); yaffsfs_Unlock(); @@ -1347,7 +1347,7 @@ void yaffs_rewinddir(yaffs_DIR *dirp) int yaffs_closedir(yaffs_DIR *dirp) { yaffsfs_DirectorySearchContext *dsc = (yaffsfs_DirectorySearchContext *)dirp; - + yaffsfs_Lock(); dsc->magic = 0; list_del(&dsc->others); /* unhook from list */ @@ -1366,7 +1366,7 @@ int yaffs_symlink(const char *oldpath, const char *newpath) char *name; int retVal= -1; int mode = 0; // ignore for now - + yaffsfs_Lock(); parent = yaffsfs_FindDirectory(NULL,newpath,&name,0); obj = yaffs_MknodSymLink(parent,name,mode,0,0,oldpath); @@ -1379,11 +1379,11 @@ int yaffs_symlink(const char *oldpath, const char *newpath) yaffsfs_SetError(-ENOSPC); // just assume no space for now retVal = -1; } - + yaffsfs_Unlock(); - + return retVal; - + } int yaffs_readlink(const char *path, char *buf, int bufsiz) @@ -1391,11 +1391,11 @@ int yaffs_readlink(const char *path, char *buf, int bufsiz) yaffs_Object *obj = NULL; int retVal; - + yaffsfs_Lock(); - + obj = yaffsfs_FindObject(NULL,path,0); - + if(!obj) { yaffsfs_SetError(-ENOENT); @@ -1424,12 +1424,12 @@ int yaffs_link(const char *oldpath, const char *newpath) yaffs_Object *target = NULL; int retVal = 0; - + yaffsfs_Lock(); - + obj = yaffsfs_FindObject(NULL,oldpath,0); target = yaffsfs_FindObject(NULL,newpath,0); - + if(!obj) { yaffsfs_SetError(-ENOENT); @@ -1440,15 +1440,15 @@ int yaffs_link(const char *oldpath, const char *newpath) yaffsfs_SetError(-EEXIST); retVal = -1; } - else + else { yaffs_Object *newdir = NULL; yaffs_Object *link = NULL; - + char *newname; - + newdir = yaffsfs_FindDirectory(NULL,newpath,&newname,0); - + if(!newdir) { yaffsfs_SetError(-ENOTDIR); @@ -1473,7 +1473,7 @@ int yaffs_link(const char *oldpath, const char *newpath) } } yaffsfs_Unlock(); - + return retVal; } @@ -1482,13 +1482,13 @@ int yaffs_mknod(const char *pathname, mode_t mode, dev_t dev); int yaffs_DumpDevStruct(const char *path) { char *rest; - + yaffs_Object *obj = yaffsfs_FindRoot(path,&rest); - + if(obj) { yaffs_Device *dev = obj->myDev; - + printf("\n" "nPageWrites.......... %d\n" "nPageReads........... %d\n" @@ -1504,7 +1504,7 @@ int yaffs_DumpDevStruct(const char *path) dev->garbageCollections, dev->passiveGarbageCollections ); - + } return 0; } diff --git a/fs/yaffs2/yaffsfs.h b/fs/yaffs2/yaffsfs.h index 9afe60a1ceb..95e7a914b37 100644 --- a/fs/yaffs2/yaffsfs.h +++ b/fs/yaffs2/yaffsfs.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -47,7 +47,7 @@ #define O_RDWR 02 #endif -#ifndef O_CREAT +#ifndef O_CREAT #define O_CREAT 0100 #endif @@ -95,7 +95,7 @@ #define EACCESS 13 #endif -#ifndef EXDEV +#ifndef EXDEV #define EXDEV 18 #endif @@ -146,7 +146,7 @@ #define S_IFREG 0100000 #endif -#ifndef S_IREAD +#ifndef S_IREAD #define S_IREAD 0000400 #endif @@ -202,8 +202,8 @@ int yaffs_stat(const char *path, struct yaffs_stat *buf) ; int yaffs_lstat(const char *path, struct yaffs_stat *buf) ; int yaffs_fstat(int fd, struct yaffs_stat *buf) ; -int yaffs_chmod(const char *path, mode_t mode); -int yaffs_fchmod(int fd, mode_t mode); +int yaffs_chmod(const char *path, mode_t mode); +int yaffs_fchmod(int fd, mode_t mode); int yaffs_mkdir(const char *path, mode_t mode) ; int yaffs_rmdir(const char *path) ; @@ -216,10 +216,10 @@ int yaffs_closedir(yaffs_DIR *dirp) ; int yaffs_mount(const char *path) ; int yaffs_unmount(const char *path) ; -int yaffs_symlink(const char *oldpath, const char *newpath); -int yaffs_readlink(const char *path, char *buf, int bufsiz); +int yaffs_symlink(const char *oldpath, const char *newpath); +int yaffs_readlink(const char *path, char *buf, int bufsiz); -int yaffs_link(const char *oldpath, const char *newpath); +int yaffs_link(const char *oldpath, const char *newpath); int yaffs_mknod(const char *pathname, mode_t mode, dev_t dev); loff_t yaffs_freespace(const char *path); @@ -229,5 +229,3 @@ void yaffs_initialise(yaffsfs_DeviceConfiguration *configList); int yaffs_StartUp(void); #endif - - diff --git a/fs/yaffs2/yaffsinterface.h b/fs/yaffs2/yaffsinterface.h index 0cfdfcf6baa..810837a32d9 100644 --- a/fs/yaffs2/yaffsinterface.h +++ b/fs/yaffs2/yaffsinterface.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 diff --git a/fs/yaffs2/ydirectenv.h b/fs/yaffs2/ydirectenv.h index adcc0b54685..b5558108441 100644 --- a/fs/yaffs2/ydirectenv.h +++ b/fs/yaffs2/ydirectenv.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -20,7 +20,7 @@ #ifndef __YDIRECTENV_H__ #define __YDIRECTENV_H__ -// Direct interface +/* Direct interface */ #include "devextras.h" @@ -90,5 +90,3 @@ #define yaffs_strcmp(a,b) strcmp(a,b) #endif - - diff --git a/fs/yaffs2/yportenv.h b/fs/yaffs2/yportenv.h index b316b16d702..bbab14d503d 100644 --- a/fs/yaffs2/yportenv.h +++ b/fs/yaffs2/yportenv.h @@ -1,5 +1,5 @@ /* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. + * 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 @@ -156,7 +156,7 @@ extern unsigned int yaffs_wr_attempts; * Tracing flags. * The flags masked in YAFFS_TRACE_ALWAYS are always traced. */ - + #define YAFFS_TRACE_OS 0x00000002 #define YAFFS_TRACE_ALLOCATE 0x00000004 #define YAFFS_TRACE_SCAN 0x00000008 |