From 306910e5d18ea19b4c10df06defaa494733def60 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Tue, 10 Jun 2008 08:20:19 +0000 Subject: generic-2.6: revert yaffs changes [11378], the new code is not working correctly on RouterBoards SVN-Revision: 11427 --- .../files-2.6.26/fs/yaffs2/yaffs_guts.c | 393 ++++++++------------- 1 file changed, 152 insertions(+), 241 deletions(-) (limited to 'target/linux/generic-2.6/files-2.6.26/fs/yaffs2/yaffs_guts.c') diff --git a/target/linux/generic-2.6/files-2.6.26/fs/yaffs2/yaffs_guts.c b/target/linux/generic-2.6/files-2.6.26/fs/yaffs2/yaffs_guts.c index 223f2c130a..2ab8146913 100644 --- a/target/linux/generic-2.6/files-2.6.26/fs/yaffs2/yaffs_guts.c +++ b/target/linux/generic-2.6/files-2.6.26/fs/yaffs2/yaffs_guts.c @@ -12,14 +12,13 @@ */ const char *yaffs_guts_c_version = - "$Id: yaffs_guts.c,v 1.56 2008-05-08 23:23:26 charles Exp $"; + "$Id: yaffs_guts.c,v 1.49 2007-05-15 20:07:40 charles Exp $"; #include "yportenv.h" #include "yaffsinterface.h" #include "yaffs_guts.h" #include "yaffs_tagsvalidity.h" -#include "yaffs_getblockinfo.h" #include "yaffs_tagscompat.h" #ifndef CONFIG_YAFFS_USE_OWN_SORT @@ -79,6 +78,9 @@ static int yaffs_DoGenericObjectDeletion(yaffs_Object * in); static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo); +static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo); +static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, + int lineNo); static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, int chunkInNAND); @@ -119,32 +121,23 @@ static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, /* Function to calculate chunk and offset */ -static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, int *chunkOut, __u32 *offsetOut) +static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u32 *offset) { - int chunk; - __u32 offset; - - chunk = (__u32)(addr >> dev->chunkShift); - - if(dev->chunkDiv == 1) - { - /* easy power of 2 case */ - offset = (__u32)(addr & dev->chunkMask); + if(dev->chunkShift){ + /* Easy-peasy power of 2 case */ + *chunk = (__u32)(addr >> dev->chunkShift); + *offset = (__u32)(addr & dev->chunkMask); } - else + else if(dev->crumbsPerChunk) { - /* Non power-of-2 case */ - - loff_t chunkBase; - - chunk /= dev->chunkDiv; - - chunkBase = ((loff_t)chunk) * dev->nDataBytesPerChunk; - offset = (__u32)(addr - chunkBase); + /* Case where we're using "crumbs" */ + *offset = (__u32)(addr & dev->crumbMask); + addr >>= dev->crumbShift; + *chunk = ((__u32)addr)/dev->crumbsPerChunk; + *offset += ((addr - (*chunk * dev->crumbsPerChunk)) << dev->crumbShift); } - - *chunkOut = chunk; - *offsetOut = offset; + else + YBUG(); } /* Function to return the number of shifts for a power of 2 greater than or equal @@ -175,7 +168,7 @@ static __u32 ShiftsGE(__u32 x) /* Function to return the number of shifts to get a 1 in bit 0 */ -static __u32 Shifts(__u32 x) +static __u32 ShiftDiv(__u32 x) { int nShifts; @@ -207,21 +200,16 @@ static int yaffs_InitialiseTempBuffers(yaffs_Device *dev) for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { dev->tempBuffer[i].line = 0; /* not in use */ dev->tempBuffer[i].buffer = buf = - YMALLOC_DMA(dev->totalBytesPerChunk); + YMALLOC_DMA(dev->nDataBytesPerChunk); } return buf ? YAFFS_OK : YAFFS_FAIL; } -__u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) +static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) { int i, j; - - dev->tempInUse++; - if(dev->tempInUse > dev->maxTemp) - dev->maxTemp = dev->tempInUse; - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { if (dev->tempBuffer[i].line == 0) { dev->tempBuffer[i].line = lineNo; @@ -254,13 +242,10 @@ __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) } -void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, +static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, int lineNo) { int i; - - dev->tempInUse--; - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { if (dev->tempBuffer[i].buffer == buffer) { dev->tempBuffer[i].line = 0; @@ -405,14 +390,11 @@ static int yaffs_SkipVerification(yaffs_Device *dev) return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); } -#if 0 static int yaffs_SkipFullVerification(yaffs_Device *dev) { return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL)); } -#endif - static int yaffs_SkipNANDVerification(yaffs_Device *dev) { return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); @@ -615,6 +597,7 @@ static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn, int i; yaffs_Device *dev = obj->myDev; int ok = 1; + int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; if (tn) { if (level > 0) { @@ -663,6 +646,7 @@ static void yaffs_VerifyFile(yaffs_Object *obj) __u32 lastChunk; __u32 x; __u32 i; + int ok; yaffs_Device *dev; yaffs_ExtendedTags tags; yaffs_Tnode *tn; @@ -845,7 +829,7 @@ static void yaffs_VerifyObjects(yaffs_Device *dev) { yaffs_Object *obj; int i; - struct ylist_head *lh; + struct list_head *lh; if(yaffs_SkipVerification(dev)) return; @@ -853,9 +837,9 @@ static void yaffs_VerifyObjects(yaffs_Device *dev) /* Iterate through the objects in each hash entry */ for(i = 0; i < YAFFS_NOBJECT_BUCKETS; i++){ - ylist_for_each(lh, &dev->objectBucket[i].list) { + list_for_each(lh, &dev->objectBucket[i].list) { if (lh) { - obj = ylist_entry(lh, yaffs_Object, hashLink); + obj = list_entry(lh, yaffs_Object, hashLink); yaffs_VerifyObject(obj); } } @@ -931,6 +915,7 @@ static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, } + static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, const __u8 * data, yaffs_ExtendedTags * tags, @@ -1007,11 +992,7 @@ 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)); - - if(!writeOk) - chunk = -1; + } while (writeOk != YAFFS_OK && attempts < yaffs_wr_attempts); if (attempts > 1) { T(YAFFS_TRACE_ERROR, @@ -1162,10 +1143,6 @@ static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) * Must be a multiple of 32-bits */ tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - if(tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - - /* make these things */ newTnodes = YMALLOC(nTnodes * tnodeSize); @@ -1256,21 +1233,15 @@ static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev) dev->nFreeTnodes--; } - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - return tn; } static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev) { yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); - int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if(tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); if(tn) - memset(tn, 0, tnodeSize); + memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); return tn; } @@ -1291,8 +1262,6 @@ static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn) dev->freeTnodes = tn; dev->nFreeTnodes++; } - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - } static void yaffs_DeinitialiseTnodes(yaffs_Device * dev) @@ -1885,7 +1854,7 @@ static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects) /* Hook them into the free list */ for (i = 0; i < nObjects - 1; i++) { newObjects[i].siblings.next = - (struct ylist_head *)(&newObjects[i + 1]); + (struct list_head *)(&newObjects[i + 1]); } newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; @@ -1925,9 +1894,9 @@ static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) tn->myDev = dev; tn->chunkId = -1; tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; - YINIT_LIST_HEAD(&(tn->hardLinks)); - YINIT_LIST_HEAD(&(tn->hashLink)); - YINIT_LIST_HEAD(&tn->siblings); + INIT_LIST_HEAD(&(tn->hardLinks)); + INIT_LIST_HEAD(&(tn->hashLink)); + INIT_LIST_HEAD(&tn->siblings); /* Add it to the lost and found directory. * NB Can't put root or lostNFound in lostNFound so @@ -1938,8 +1907,6 @@ static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) } } - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - return tn; } @@ -1970,8 +1937,8 @@ static void yaffs_UnhashObject(yaffs_Object * tn) yaffs_Device *dev = tn->myDev; /* If it is still linked into the bucket list, free from the list */ - if (!ylist_empty(&tn->hashLink)) { - ylist_del_init(&tn->hashLink); + if (!list_empty(&tn->hashLink)) { + list_del_init(&tn->hashLink); bucket = yaffs_HashFunction(tn->objectId); dev->objectBucket[bucket].count--; } @@ -1997,12 +1964,9 @@ static void yaffs_FreeObject(yaffs_Object * tn) yaffs_UnhashObject(tn); /* Link into the free list. */ - tn->siblings.next = (struct ylist_head *)(dev->freeObjects); + tn->siblings.next = (struct list_head *)(dev->freeObjects); dev->freeObjects = tn; dev->nFreeObjects++; - - dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ - } #ifdef __KERNEL__ @@ -2043,7 +2007,7 @@ static void yaffs_InitialiseObjects(yaffs_Device * dev) dev->nFreeObjects = 0; for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { - YINIT_LIST_HEAD(&dev->objectBucket[i].list); + INIT_LIST_HEAD(&dev->objectBucket[i].list); dev->objectBucket[i].count = 0; } @@ -2094,7 +2058,7 @@ static int yaffs_CreateNewObjectNumber(yaffs_Device * dev) */ int found = 0; - struct ylist_head *i; + struct list_head *i; __u32 n = (__u32) bucket; @@ -2104,10 +2068,10 @@ static int yaffs_CreateNewObjectNumber(yaffs_Device * dev) found = 1; n += YAFFS_NOBJECT_BUCKETS; if (1 || dev->objectBucket[bucket].count > 0) { - ylist_for_each(i, &dev->objectBucket[bucket].list) { + list_for_each(i, &dev->objectBucket[bucket].list) { /* If there is already one in the list */ if (i - && ylist_entry(i, yaffs_Object, + && list_entry(i, yaffs_Object, hashLink)->objectId == n) { found = 0; } @@ -2124,7 +2088,7 @@ static void yaffs_HashObject(yaffs_Object * in) int bucket = yaffs_HashFunction(in->objectId); yaffs_Device *dev = in->myDev; - ylist_add(&in->hashLink, &dev->objectBucket[bucket].list); + list_add(&in->hashLink, &dev->objectBucket[bucket].list); dev->objectBucket[bucket].count++; } @@ -2132,13 +2096,13 @@ static void yaffs_HashObject(yaffs_Object * in) yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number) { int bucket = yaffs_HashFunction(number); - struct ylist_head *i; + struct list_head *i; yaffs_Object *in; - ylist_for_each(i, &dev->objectBucket[bucket].list) { + list_for_each(i, &dev->objectBucket[bucket].list) { /* Look if it is in the list */ if (i) { - in = ylist_entry(i, yaffs_Object, hashLink); + in = list_entry(i, yaffs_Object, hashLink); if (in->objectId == number) { #ifdef __KERNEL__ /* Don't tell the VFS about this one if it is defered free */ @@ -2159,7 +2123,7 @@ yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, { yaffs_Object *theObject; - yaffs_Tnode *tn = NULL; + yaffs_Tnode *tn; if (number < 0) { number = yaffs_CreateNewObjectNumber(dev); @@ -2207,7 +2171,7 @@ yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, theObject->variant.fileVariant.top = tn; break; case YAFFS_OBJECT_TYPE_DIRECTORY: - YINIT_LIST_HEAD(&theObject->variant.directoryVariant. + INIT_LIST_HEAD(&theObject->variant.directoryVariant. children); break; case YAFFS_OBJECT_TYPE_SYMLINK: @@ -2274,7 +2238,7 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, const YCHAR * aliasString, __u32 rdev) { yaffs_Object *in; - YCHAR *str = NULL; + YCHAR *str; yaffs_Device *dev = parent->myDev; @@ -2332,7 +2296,7 @@ static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, equivalentObject; in->variant.hardLinkVariant.equivalentObjectId = equivalentObject->objectId; - ylist_add(&in->hardLinks, &equivalentObject->hardLinks); + list_add(&in->hardLinks, &equivalentObject->hardLinks); break; case YAFFS_OBJECT_TYPE_FILE: case YAFFS_OBJECT_TYPE_DIRECTORY: @@ -2493,7 +2457,7 @@ int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, existingTarget = yaffs_FindObjectByName(newDir, newName); if (existingTarget && existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && - !ylist_empty(&existingTarget->variant.directoryVariant.children)) { + !list_empty(&existingTarget->variant.directoryVariant.children)) { /* There is a target that is a non-empty directory, so we fail */ return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ } else if (existingTarget && existingTarget != obj) { @@ -2837,40 +2801,6 @@ static int yaffs_FindBlockForAllocation(yaffs_Device * dev) } - -static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev) -{ - if(!dev->nCheckpointBlocksRequired){ - /* Not a valid value so recalculate */ - int nBytes = 0; - int nBlocks; - int devBlocks = (dev->endBlock - dev->startBlock + 1); - int tnodeSize; - - tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if(tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - - nBytes += sizeof(yaffs_CheckpointValidity); - nBytes += sizeof(yaffs_CheckpointDevice); - nBytes += devBlocks * sizeof(yaffs_BlockInfo); - nBytes += devBlocks * dev->chunkBitmapStride; - nBytes += (sizeof(yaffs_CheckpointObject) + sizeof(__u32)) * (dev->nObjectsCreated - dev->nFreeObjects); - nBytes += (tnodeSize + sizeof(__u32)) * (dev->nTnodesCreated - dev->nFreeTnodes); - nBytes += sizeof(yaffs_CheckpointValidity); - nBytes += sizeof(__u32); /* checksum*/ - - /* Round up and add 2 blocks to allow for some bad blocks, so add 3 */ - - nBlocks = (nBytes/(dev->nDataBytesPerChunk * dev->nChunksPerBlock)) + 3; - - dev->nCheckpointBlocksRequired = nBlocks; - } - - return dev->nCheckpointBlocksRequired; -} - // Check if there's space to allocate... // Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev) @@ -2879,7 +2809,7 @@ static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev) int reservedBlocks = dev->nReservedBlocks; int checkpointBlocks; - checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; + checkpointBlocks = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; if(checkpointBlocks < 0) checkpointBlocks = 0; @@ -3107,7 +3037,7 @@ static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) yaffs_ObjectHeader *oh; oh = (yaffs_ObjectHeader *)buffer; oh->isShrink = 0; - oh->shadowsObject = oh->inbandShadowsObject = -1; + oh->shadowsObject = -1; tags.extraShadows = 0; tags.extraIsShrinkHeader = 0; @@ -3212,7 +3142,7 @@ static int yaffs_CheckGarbageCollection(yaffs_Device * dev) do { maxTries++; - checkpointBlockAdjust = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; + checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint); if(checkpointBlockAdjust < 0) checkpointBlockAdjust = 0; @@ -3698,7 +3628,7 @@ int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, oh->type = in->variantType; oh->yst_mode = in->yst_mode; - oh->shadowsObject = oh->inbandShadowsObject = shadows; + oh->shadowsObject = shadows; #ifdef CONFIG_YAFFS_WINCE oh->win_atime[0] = in->win_atime[0]; @@ -4290,11 +4220,7 @@ static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, int i; yaffs_Device *dev = in->myDev; int ok = 1; - int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if(tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); - + int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; if (tn) { if (level > 0) { @@ -4312,7 +4238,7 @@ static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, /* printf("write tnode at %d\n",baseOffset); */ ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset)); if(ok) - ok = (yaffs_CheckpointWrite(dev,tn,tnodeSize) == tnodeSize); + ok = (yaffs_CheckpointWrite(dev,tn,nTnodeBytes) == nTnodeBytes); } } @@ -4346,10 +4272,6 @@ static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; yaffs_Tnode *tn; int nread = 0; - int tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if(tnodeSize < sizeof(yaffs_Tnode)) - tnodeSize = sizeof(yaffs_Tnode); ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); @@ -4361,7 +4283,8 @@ static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) /* printf("read tnode at %d\n",baseChunk); */ tn = yaffs_GetTnodeRaw(dev); if(tn) - ok = (yaffs_CheckpointRead(dev,tn,tnodeSize) == tnodeSize); + ok = (yaffs_CheckpointRead(dev,tn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8) == + (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); else ok = 0; @@ -4392,7 +4315,7 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) yaffs_CheckpointObject cp; int i; int ok = 1; - struct ylist_head *lh; + struct list_head *lh; /* Iterate through the objects in each hash entry, @@ -4400,9 +4323,9 @@ static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) */ for(i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++){ - ylist_for_each(lh, &dev->objectBucket[i].list) { + list_for_each(lh, &dev->objectBucket[i].list) { if (lh) { - obj = ylist_entry(lh, yaffs_Object, hashLink); + obj = list_entry(lh, yaffs_Object, hashLink); if (!obj->deferedFree) { yaffs_ObjectToCheckpointObject(&cp,obj); cp.structType = sizeof(cp); @@ -4460,7 +4383,7 @@ static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) ok = yaffs_ReadCheckpointTnodes(obj); } else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { obj->hardLinks.next = - (struct ylist_head *) + (struct list_head *) hardList; hardList = obj; } @@ -4666,7 +4589,7 @@ int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset, { int chunk; - __u32 start; + int start; int nToCopy; int n = nBytes; int nDone = 0; @@ -4694,10 +4617,10 @@ int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset, cache = yaffs_FindChunkCache(in, chunk); /* If the chunk is already in the cache or it is less than a whole chunk - * or we're using inband tags then use the cache (if there is caching) + * then use the cache (if there is caching) * else bypass the cache. */ - if (cache || nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { + if (cache || nToCopy != dev->nDataBytesPerChunk) { if (dev->nShortOpCaches > 0) { /* If we can't find the data in the cache, then load it up. */ @@ -4786,7 +4709,7 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, { int chunk; - __u32 start; + int start; int nToCopy; int n = nBytes; int nDone = 0; @@ -4834,10 +4757,8 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, nToWriteBack = dev->nDataBytesPerChunk; } - if (nToCopy != dev->nDataBytesPerChunk || dev->inbandTags) { - /* An incomplete start or end chunk (or maybe both start and end chunk), - * or we're using inband tags, so we want to use the cache buffers. - */ + if (nToCopy != dev->nDataBytesPerChunk) { + /* An incomplete start or end chunk (or maybe both start and end chunk) */ if (dev->nShortOpCaches > 0) { yaffs_ChunkCache *cache; /* If we can't find the data in the cache, then load the cache */ @@ -4925,8 +4846,7 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, } } else { - /* A full chunk. Write directly from the supplied buffer. */ - + #ifdef CONFIG_YAFFS_WINCE /* Under WinCE can't do direct transfer. Need to use a local buffer. * This is because we otherwise screw up WinCE's memory mapper @@ -4945,7 +4865,7 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, 0); yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); #else - + /* A full chunk. Write directly from the supplied buffer. */ chunkWritten = yaffs_WriteChunkDataToObject(in, chunk, buffer, dev->nDataBytesPerChunk, @@ -5023,7 +4943,7 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) { int oldFileSize = in->variant.fileVariant.fileSize; - __u32 newSizeOfPartialChunk; + int newSizeOfPartialChunk; int newFullChunks; yaffs_Device *dev = in->myDev; @@ -5036,11 +4956,11 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) yaffs_CheckGarbageCollection(dev); if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { - return YAFFS_FAIL; + return yaffs_GetFileSize(in); } if (newSize == oldFileSize) { - return YAFFS_OK; + return oldFileSize; } if (newSize < oldFileSize) { @@ -5085,7 +5005,7 @@ int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) (newSize < oldFileSize) ? 1 : 0, 0); } - return YAFFS_OK; + return newSize; } loff_t yaffs_GetFileSize(yaffs_Object * obj) @@ -5138,7 +5058,7 @@ static int yaffs_DoGenericObjectDeletion(yaffs_Object * in) if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { /* Move to the unlinked directory so we have a record that it was deleted. */ - yaffs_ChangeObjectName(in, in->myDev->deletedDir,_Y("deleted"), 0, 0); + yaffs_ChangeObjectName(in, in->myDev->deletedDir,"deleted", 0, 0); } @@ -5176,7 +5096,7 @@ static int yaffs_UnlinkFile(yaffs_Object * in) if (immediateDeletion) { retVal = yaffs_ChangeObjectName(in, in->myDev->deletedDir, - _Y("deleted"), 0, 0); + "deleted", 0, 0); T(YAFFS_TRACE_TRACING, (TSTR("yaffs: immediate deletion of file %d" TENDSTR), in->objectId)); @@ -5189,7 +5109,7 @@ static int yaffs_UnlinkFile(yaffs_Object * in) } else { retVal = yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, - _Y("unlinked"), 0, 0); + "unlinked", 0, 0); } } @@ -5224,7 +5144,7 @@ int yaffs_DeleteFile(yaffs_Object * in) static int yaffs_DeleteDirectory(yaffs_Object * in) { /* First check that the directory is empty. */ - if (ylist_empty(&in->variant.directoryVariant.children)) { + if (list_empty(&in->variant.directoryVariant.children)) { return yaffs_DoGenericObjectDeletion(in); } @@ -5244,7 +5164,7 @@ static int yaffs_DeleteHardLink(yaffs_Object * in) /* remove this hardlink from the list assocaited with the equivalent * object */ - ylist_del(&in->hardLinks); + list_del(&in->hardLinks); return yaffs_DoGenericObjectDeletion(in); } @@ -5276,7 +5196,7 @@ static int yaffs_UnlinkWorker(yaffs_Object * obj) if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { return yaffs_DeleteHardLink(obj); - } else if (!ylist_empty(&obj->hardLinks)) { + } else if (!list_empty(&obj->hardLinks)) { /* Curve ball: We're unlinking an object that has a hardlink. * * This problem arises because we are not strictly following @@ -5295,10 +5215,10 @@ static int yaffs_UnlinkWorker(yaffs_Object * obj) int retVal; YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - hl = ylist_entry(obj->hardLinks.next, yaffs_Object, hardLinks); + hl = list_entry(obj->hardLinks.next, yaffs_Object, hardLinks); - ylist_del_init(&hl->hardLinks); - ylist_del_init(&hl->siblings); + list_del_init(&hl->hardLinks); + list_del_init(&hl->siblings); yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); @@ -5405,13 +5325,13 @@ static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList) if (in) { /* Add the hardlink pointers */ hl->variant.hardLinkVariant.equivalentObject = in; - ylist_add(&hl->hardLinks, &in->hardLinks); + list_add(&hl->hardLinks, &in->hardLinks); } else { /* Todo Need to report/handle this better. * Got a problem... hardlink to a non-existant object */ hl->variant.hardLinkVariant.equivalentObject = NULL; - YINIT_LIST_HEAD(&hl->hardLinks); + INIT_LIST_HEAD(&hl->hardLinks); } @@ -5451,7 +5371,7 @@ static int yaffs_Scan(yaffs_Device * dev) yaffs_BlockState state; yaffs_Object *hardList = NULL; yaffs_BlockInfo *bi; - __u32 sequenceNumber; + int sequenceNumber; yaffs_ObjectHeader *oh; yaffs_Object *in; yaffs_Object *parent; @@ -5568,8 +5488,6 @@ static int yaffs_Scan(yaffs_Device * dev) for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; blockIterator++) { - YYIELD(); - if (dev->isYaffs2) { /* get the block to scan in the correct order */ blk = blockIndex[blockIterator].block; @@ -5630,7 +5548,8 @@ static int yaffs_Scan(yaffs_Device * dev) bi->sequenceNumber)) { T(YAFFS_TRACE_ALWAYS, (TSTR - ("yaffs: Allocation block %d was not highest sequence id: block seq = %d, dev seq = %d" + ("yaffs: Allocation block %d was not highest sequence id:" + " block seq = %d, dev seq = %d" TENDSTR), blk,bi->sequenceNumber,dev->sequenceNumber)); } } @@ -5804,7 +5723,7 @@ static int yaffs_Scan(yaffs_Device * dev) /* Set up as a directory */ parent->variantType = YAFFS_OBJECT_TYPE_DIRECTORY; - YINIT_LIST_HEAD(&parent->variant. + INIT_LIST_HEAD(&parent->variant. directoryVariant. children); } else if (parent->variantType != @@ -5816,7 +5735,8 @@ static int yaffs_Scan(yaffs_Device * dev) T(YAFFS_TRACE_ERROR, (TSTR - ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." + ("yaffs tragedy: attempting to use non-directory as" + " a directory in scan. Put in lost+found." TENDSTR))); parent = dev->lostNFoundDir; } @@ -5861,7 +5781,7 @@ static int yaffs_Scan(yaffs_Device * dev) equivalentObjectId = oh->equivalentObjectId; in->hardLinks.next = - (struct ylist_head *) + (struct list_head *) hardList; hardList = in; break; @@ -5920,16 +5840,16 @@ static int yaffs_Scan(yaffs_Device * dev) * just delete them. */ { - struct ylist_head *i; - struct ylist_head *n; + struct list_head *i; + struct list_head *n; yaffs_Object *l; /* Soft delete all the unlinked files */ - ylist_for_each_safe(i, n, + list_for_each_safe(i, n, &dev->unlinkedDir->variant.directoryVariant. children) { if (i) { - l = ylist_entry(i, yaffs_Object, siblings); + l = list_entry(i, yaffs_Object, siblings); yaffs_DestroyObject(l); } } @@ -6018,7 +5938,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) yaffs_BlockState state; yaffs_Object *hardList = NULL; yaffs_BlockInfo *bi; - __u32 sequenceNumber; + int sequenceNumber; yaffs_ObjectHeader *oh; yaffs_Object *in; yaffs_Object *parent; @@ -6133,10 +6053,8 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) /* Sort the blocks */ #ifndef CONFIG_YAFFS_USE_OWN_SORT - { - /* Use qsort now. */ - yaffs_qsort(blockIndex, nBlocksToScan, sizeof(yaffs_BlockIndex), ybicmp); - } + yaffs_qsort(blockIndex, nBlocksToScan, + sizeof(yaffs_BlockIndex), ybicmp); #else { /* Dungy old bubble sort... */ @@ -6347,12 +6265,6 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) NULL); oh = (yaffs_ObjectHeader *) chunkData; - - if(dev->inbandTags){ - /* Fix up the header if they got corrupted by inband tags */ - oh->shadowsObject = oh->inbandShadowsObject; - oh->isShrink = oh->inbandIsShrink; - } if (!in) in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); @@ -6363,7 +6275,8 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) /* TODO Hoosterman we have a problem! */ T(YAFFS_TRACE_ERROR, (TSTR - ("yaffs tragedy: Could not make object for object %d at chunk %d during scan" + ("yaffs tragedy: Could not make object for object %d " + "at chunk %d during scan" TENDSTR), tags.objectId, chunk)); } @@ -6521,7 +6434,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) /* Set up as a directory */ parent->variantType = YAFFS_OBJECT_TYPE_DIRECTORY; - YINIT_LIST_HEAD(&parent->variant. + INIT_LIST_HEAD(&parent->variant. directoryVariant. children); } else if (parent->variantType != @@ -6533,7 +6446,8 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) T(YAFFS_TRACE_ERROR, (TSTR - ("yaffs tragedy: attempting to use non-directory as a directory in scan. Put in lost+found." + ("yaffs tragedy: attempting to use non-directory as" + " a directory in scan. Put in lost+found." TENDSTR))); parent = dev->lostNFoundDir; } @@ -6584,7 +6498,7 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) in->variant.hardLinkVariant.equivalentObjectId = equivalentObjectId; in->hardLinks.next = - (struct ylist_head *) hardList; + (struct list_head *) hardList; hardList = in; } break; @@ -6644,27 +6558,27 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) * Sort out state of unlinked and deleted objects. */ { - struct ylist_head *i; - struct ylist_head *n; + struct list_head *i; + struct list_head *n; yaffs_Object *l; /* Soft delete all the unlinked files */ - ylist_for_each_safe(i, n, + list_for_each_safe(i, n, &dev->unlinkedDir->variant.directoryVariant. children) { if (i) { - l = ylist_entry(i, yaffs_Object, siblings); + l = list_entry(i, yaffs_Object, siblings); yaffs_DestroyObject(l); } } /* Soft delete all the deletedDir files */ - ylist_for_each_safe(i, n, + list_for_each_safe(i, n, &dev->deletedDir->variant.directoryVariant. children) { if (i) { - l = ylist_entry(i, yaffs_Object, siblings); + l = list_entry(i, yaffs_Object, siblings); yaffs_DestroyObject(l); } @@ -6691,7 +6605,7 @@ static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj) if(dev && dev->removeObjectCallback) dev->removeObjectCallback(obj); - ylist_del_init(&obj->siblings); + list_del_init(&obj->siblings); obj->parent = NULL; } @@ -6717,14 +6631,14 @@ static void yaffs_AddObjectToDirectory(yaffs_Object * directory, if (obj->siblings.prev == NULL) { /* Not initialised */ - YINIT_LIST_HEAD(&obj->siblings); + INIT_LIST_HEAD(&obj->siblings); - } else if (!ylist_empty(&obj->siblings)) { + } else if (!list_empty(&obj->siblings)) { /* If it is holed up somewhere else, un hook it */ yaffs_RemoveObjectFromDirectory(obj); } /* Now add it */ - ylist_add(&obj->siblings, &directory->variant.directoryVariant.children); + list_add(&obj->siblings, &directory->variant.directoryVariant.children); obj->parent = directory; if (directory == obj->myDev->unlinkedDir @@ -6740,7 +6654,7 @@ yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, { int sum; - struct ylist_head *i; + struct list_head *i; YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; yaffs_Object *l; @@ -6765,9 +6679,9 @@ yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, sum = yaffs_CalcNameSum(name); - ylist_for_each(i, &directory->variant.directoryVariant.children) { + list_for_each(i, &directory->variant.directoryVariant.children) { if (i) { - l = ylist_entry(i, yaffs_Object, siblings); + l = list_entry(i, yaffs_Object, siblings); yaffs_CheckObjectDetailsLoaded(l); @@ -6799,7 +6713,7 @@ yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, int (*fn) (yaffs_Object *)) { - struct ylist_head *i; + struct list_head *i; yaffs_Object *l; if (!theDir) { @@ -6816,9 +6730,9 @@ int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, YBUG(); } - ylist_for_each(i, &theDir->variant.directoryVariant.children) { + list_for_each(i, &theDir->variant.directoryVariant.children) { if (i) { - l = ylist_entry(i, yaffs_Object, siblings); + l = list_entry(i, yaffs_Object, siblings); if (l && !fn(l)) { return YAFFS_FAIL; } @@ -6907,12 +6821,12 @@ int yaffs_GetObjectFileLength(yaffs_Object * obj) int yaffs_GetObjectLinkCount(yaffs_Object * obj) { int count = 0; - struct ylist_head *i; + struct list_head *i; if (!obj->unlinked) { count++; /* the object itself */ } - ylist_for_each(i, &obj->hardLinks) { + list_for_each(i, &obj->hardLinks) { count++; /* add the hard links; */ } return count; @@ -7135,9 +7049,8 @@ int yaffs_GutsInitialise(yaffs_Device * dev) /* Check geometry parameters. */ - if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) || - (!dev->isYaffs2 && dev->totalBytesPerChunk != 512) || - (dev->inbandTags && !dev->isYaffs2 ) || + if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || + (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || dev->nChunksPerBlock < 2 || dev->nReservedBlocks < 2 || dev->internalStartBlock <= 0 || @@ -7146,8 +7059,8 @@ int yaffs_GutsInitialise(yaffs_Device * dev) ) { T(YAFFS_TRACE_ALWAYS, (TSTR - ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s, inbandTags %d " - TENDSTR), dev->totalBytesPerChunk, dev->isYaffs2 ? "2" : "", dev->inbandTags)); + ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s " + TENDSTR), dev->nDataBytesPerChunk, dev->isYaffs2 ? "2" : "")); return YAFFS_FAIL; } @@ -7156,12 +7069,6 @@ int yaffs_GutsInitialise(yaffs_Device * dev) (TSTR("yaffs: InitialiseNAND failed" TENDSTR))); return YAFFS_FAIL; } - - /* Sort out space for inband tags, if required */ - if(dev->inbandTags) - dev->nDataBytesPerChunk = dev->totalBytesPerChunk - sizeof(yaffs_PackedTags2TagsPart); - else - dev->nDataBytesPerChunk = dev->totalBytesPerChunk; /* Got the right mix of functions? */ if (!yaffs_CheckDevFunctions(dev)) { @@ -7197,14 +7104,22 @@ int yaffs_GutsInitialise(yaffs_Device * dev) /* * Calculate all the chunk size manipulation numbers: */ - { - __u32 x = dev->nDataBytesPerChunk; - /* We always use dev->chunkShift and dev->chunkDiv */ - dev->chunkShift = Shifts(x); - x >>= dev->chunkShift; - dev->chunkDiv = x; - /* We only use chunk mask if chunkDiv is 1 */ - dev->chunkMask = (1<chunkShift) - 1; + /* Start off assuming it is a power of 2 */ + dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk); + dev->chunkMask = (1<chunkShift) - 1; + + if(dev->nDataBytesPerChunk == (dev->chunkMask + 1)){ + /* Yes it is a power of 2, disable crumbs */ + dev->crumbMask = 0; + dev->crumbShift = 0; + dev->crumbsPerChunk = 0; + } else { + /* Not a power of 2, use crumbs instead */ + dev->crumbShift = ShiftDiv(sizeof(yaffs_PackedTags2TagsPart)); + dev->crumbMask = (1<crumbShift)-1; + dev->crumbsPerChunk = dev->nDataBytesPerChunk/(1 << dev->crumbShift); + dev->chunkShift = 0; + dev->chunkMask = 0; } @@ -7288,7 +7203,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev) if (!init_failed && dev->nShortOpCaches > 0) { int i; - void *buf; + __u8 *buf; int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) { @@ -7304,7 +7219,7 @@ int yaffs_GutsInitialise(yaffs_Device * dev) dev->srCache[i].object = NULL; dev->srCache[i].lastUse = 0; dev->srCache[i].dirty = 0; - dev->srCache[i].data = buf = YMALLOC_DMA(dev->totalBytesPerChunk); + dev->srCache[i].data = buf = YMALLOC_DMA(dev->nDataBytesPerChunk); } if(!buf) init_failed = 1; @@ -7430,7 +7345,6 @@ void yaffs_Deinitialise(yaffs_Device * dev) YFREE(dev->tempBuffer[i].buffer); } - dev->isMounted = 0; } @@ -7496,7 +7410,7 @@ int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev) nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); /* Now we figure out how much to reserve for the checkpoint and report that... */ - blocksForCheckpoint = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint; + blocksForCheckpoint = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; if(blocksForCheckpoint < 0) blocksForCheckpoint = 0; @@ -7534,25 +7448,22 @@ static void yaffs_VerifyFreeChunks(yaffs_Device * dev) /*---------------------------------------- YAFFS test code ----------------------*/ #define yaffs_CheckStruct(structure,syze, name) \ - do { \ if(sizeof(structure) != syze) \ { \ T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\ name,syze,sizeof(structure))); \ return YAFFS_FAIL; \ - } \ - } while(0) + } static int yaffs_CheckStructures(void) { -/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags"); */ -/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion"); */ -/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare"); */ +/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags") */ +/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion") */ +/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare") */ #ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG - yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode"); -#endif -#ifndef CONFIG_YAFFS_WINCE - yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader"); + yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode") #endif + yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader") + return YAFFS_OK; } -- cgit v1.2.3