X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_guts.c;h=eff7bd4043c1114c13a9d2d48dd5efbebddc1372;hp=72532c2b6a9627f1231c7bfc33f0423c8f3453e3;hb=12ad9ff9c3121b4f3c63fb1f5c36b8af0c22e621;hpb=f8021b6b5a5f5d9b407c9be95f96da6999cdc247 diff --git a/yaffs_guts.c b/yaffs_guts.c index 72532c2..eff7bd4 100644 --- a/yaffs_guts.c +++ b/yaffs_guts.c @@ -11,8 +11,9 @@ * published by the Free Software Foundation. */ + const char *yaffs_guts_c_version = - "$Id: yaffs_guts.c,v 1.68 2008-11-27 20:32:52 charles Exp $"; + "$Id: yaffs_guts.c,v 1.74 2009-01-18 23:24:08 charles Exp $"; #include "yportenv.h" @@ -482,9 +483,10 @@ static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int yaffs_VerifyBlock(dev,bi,n); /* After collection the block should be in the erased state */ - /* TODO: This will need to change if we do partial gc */ + /* This will need to change if we do partial gc */ - if(bi->blockState != YAFFS_BLOCK_STATE_EMPTY){ + if(bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && + bi->blockState != YAFFS_BLOCK_STATE_EMPTY){ T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), n,bi->blockState)); } @@ -750,10 +752,15 @@ static void yaffs_VerifyObject(yaffs_Object *obj) __u32 chunkMax; __u32 chunkIdOk; - __u32 chunkIsLive; + __u32 chunkInRange; + __u32 chunkShouldNotBeDeleted; + __u32 chunkValid; if(!obj) return; + + if(obj->beingCreated) + return; dev = obj->myDev; @@ -765,21 +772,24 @@ static void yaffs_VerifyObject(yaffs_Object *obj) chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; - chunkIdOk = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); - chunkIsLive = chunkIdOk && + chunkInRange = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax); + chunkIdOk = chunkInRange || obj->hdrChunk == 0; + chunkValid = chunkInRange && yaffs_CheckChunkBit(dev, obj->hdrChunk / dev->nChunksPerBlock, obj->hdrChunk % dev->nChunksPerBlock); + chunkShouldNotBeDeleted = chunkInRange && !chunkValid; + if(!obj->fake && - (!chunkIdOk || !chunkIsLive)) { + (!chunkIdOk || chunkShouldNotBeDeleted)) { T(YAFFS_TRACE_VERIFY, (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), obj->objectId,obj->hdrChunk, chunkIdOk ? "" : ",out of range", - chunkIsLive || !chunkIdOk ? "" : ",marked as deleted")); + chunkShouldNotBeDeleted ? ",marked as deleted" : "")); } - if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) { + if(chunkValid &&!yaffs_SkipNANDVerification(dev)) { yaffs_ExtendedTags tags; yaffs_ObjectHeader *oh; __u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__); @@ -1924,6 +1934,8 @@ static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) /* Now sweeten it up... */ memset(tn, 0, sizeof(yaffs_Object)); + tn->beingCreated = 1; + tn->myDev = dev; tn->hdrChunk = 0; tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; @@ -1945,6 +1957,8 @@ static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) if (dev->lostNFoundDir) { yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); } + + tn->beingCreated = 0; } dev->nCheckpointBlocksRequired = 0; /* force recalculation*/ @@ -4362,7 +4376,6 @@ static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, } } else if (level == 0) { __u32 baseOffset = chunkOffset << YAFFS_TNODES_LEVEL0_BITS; - /* printf("write tnode at %d\n",baseOffset); */ ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset)); if(ok) ok = (yaffs_CheckpointWrite(dev,tn,tnodeSize) == tnodeSize); @@ -4411,7 +4424,6 @@ static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) /* Read level 0 tnode */ - /* printf("read tnode at %d\n",baseChunk); */ tn = yaffs_GetTnodeRaw(dev); if(tn) ok = (yaffs_CheckpointRead(dev,tn,tnodeSize) == tnodeSize); @@ -4846,7 +4858,8 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, int nToWriteBack; int startOfWrite = offset; int chunkWritten = 0; - int nBytesRead; + __u32 nBytesRead; + __u32 chunkStart; yaffs_Device *dev; @@ -4876,9 +4889,12 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, * we need to write back as much as was there before. */ - nBytesRead = - in->variant.fileVariant.fileSize - - ((chunk - 1) * dev->nDataBytesPerChunk); + chunkStart = ((chunk - 1) * dev->nDataBytesPerChunk); + + if(chunkStart > in->variant.fileVariant.fileSize) + nBytesRead = 0; /* Past end of file */ + else + nBytesRead = in->variant.fileVariant.fileSize - chunkStart; if (nBytesRead > dev->nDataBytesPerChunk) { nBytesRead = dev->nDataBytesPerChunk; @@ -4886,7 +4902,10 @@ int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, nToWriteBack = (nBytesRead > - ((int)start + n)) ? nBytesRead : (start + n); + (start + n)) ? nBytesRead : (start + n); + + if(nToWriteBack < 0 || nToWriteBack > dev->nDataBytesPerChunk) + YBUG(); } else { nToCopy = dev->nDataBytesPerChunk - start; @@ -5506,6 +5525,35 @@ struct yaffs_ShadowFixerStruct { struct yaffs_ShadowFixerStruct *next; }; + +static void yaffs_StripDeletedObjects(yaffs_Device *dev) +{ + /* + * Sort out state of unlinked and deleted objects after scanning. + */ + struct ylist_head *i; + struct ylist_head *n; + yaffs_Object *l; + + /* Soft delete all the unlinked files */ + ylist_for_each_safe(i, n, + &dev->unlinkedDir->variant.directoryVariant.children) { + if (i) { + l = ylist_entry(i, yaffs_Object, siblings); + yaffs_DestroyObject(l); + } + } + + ylist_for_each_safe(i, n, + &dev->deletedDir->variant.directoryVariant.children) { + if (i) { + l = ylist_entry(i, yaffs_Object, siblings); + yaffs_DestroyObject(l); + } + } + +} + static int yaffs_Scan(yaffs_Device * dev) { yaffs_ExtendedTags tags; @@ -5906,25 +5954,6 @@ static int yaffs_Scan(yaffs_Device * dev) yaffs_HardlinkFixup(dev,hardList); - /* Handle the unlinked files. Since they were left in an unlinked state we should - * just delete them. - */ - { - struct ylist_head *i; - struct ylist_head *n; - - yaffs_Object *l; - /* Soft delete all the unlinked files */ - ylist_for_each_safe(i, n, - &dev->unlinkedDir->variant.directoryVariant. - children) { - if (i) { - l = ylist_entry(i, yaffs_Object, siblings); - yaffs_DestroyObject(l); - } - } - } - /* Fix up any shadowed objects */ { struct yaffs_ShadowFixerStruct *fixer; @@ -6268,7 +6297,14 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) dev->nFreeChunks++; - } else if (tags.chunkId > 0) { + } else if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED){ + T(YAFFS_TRACE_SCAN, + (TSTR(" Unfixed ECC in chunk(%d:%d), chunk ignored"TENDSTR), + blk, c)); + + /* Don't actually delete because the chunk is not yet set up as being in use */ + /* yaffs_DeleteChunk(dev, chunk, 1, __LINE__); */ + }else if (tags.chunkId > 0) { /* chunkId > 0 so it is a data chunk... */ unsigned int endpos; __u32 chunkBase = @@ -6656,37 +6692,6 @@ static int yaffs_ScanBackwards(yaffs_Device * dev) */ yaffs_HardlinkFixup(dev,hardList); - - /* - * Sort out state of unlinked and deleted objects. - */ - { - struct ylist_head *i; - struct ylist_head *n; - - yaffs_Object *l; - - /* Soft delete all the unlinked files */ - ylist_for_each_safe(i, n, - &dev->unlinkedDir->variant.directoryVariant. - children) { - if (i) { - l = ylist_entry(i, yaffs_Object, siblings); - yaffs_DestroyObject(l); - } - } - - /* Soft delete all the deletedDir files */ - ylist_for_each_safe(i, n, - &dev->deletedDir->variant.directoryVariant. - children) { - if (i) { - l = ylist_entry(i, yaffs_Object, siblings); - yaffs_DestroyObject(l); - - } - } - } yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); @@ -6768,7 +6773,7 @@ static void yaffs_VerifyDirectory(yaffs_Object *directory) if (lh) { listObj = ylist_entry(lh, yaffs_Object, siblings); if(listObj->parent != directory){ - T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent" TENDSTR),listObj->parent)); + T(YAFFS_TRACE_ALWAYS, (TSTR("Object in directory list has wrong parent %p" TENDSTR),listObj->parent)); YBUG(); } yaffs_VerifyObjectInDirectory(listObj); @@ -7499,6 +7504,8 @@ int yaffs_GutsInitialise(yaffs_Device * dev) }else if(!yaffs_Scan(dev)) init_failed = 1; + + yaffs_StripDeletedObjects(dev); } if(init_failed){