*/
const char *yaffs_guts_c_version =
- "$Id: yaffs_guts.c,v 1.57 2008-07-02 20:17:41 charles Exp $";
+ "$Id: yaffs_guts.c,v 1.65 2008-11-26 20:42:04 charles Exp $";
#include "yportenv.h"
static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in);
+static void yaffs_VerifyDirectory(yaffs_Object *directory);
#ifdef YAFFS_PARANOID
static int yaffs_CheckFileSanity(yaffs_Object * in);
#else
return;
/* Report illegal runtime states */
- if(bi->blockState <0 || bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
+ if(bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES)
T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState));
switch(bi->blockState){
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
yaffs_VerifyBlock(dev,bi,i);
- if(bi->blockState >=0 && bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
+ if(bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
nBlocksPerState[bi->blockState]++;
else
nIllegalBlockStates++;
*/
static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck)
{
- if(yaffs_SkipVerification(obj->myDev))
+ if(obj && yaffs_SkipVerification(obj->myDev))
return;
if(!(tags && obj && oh)){
}
}
} else if (level == 0) {
- int i;
yaffs_ExtendedTags tags;
__u32 objectId = obj->objectId;
yaffs_Tnode *tn;
__u32 objectId;
- if(obj && yaffs_SkipVerification(obj->myDev))
+ if(!obj)
+ return;
+
+ if(yaffs_SkipVerification(obj->myDev))
return;
dev = obj->myDev;
}
-static void yaffs_VerifyDirectory(yaffs_Object *obj)
-{
- if(obj && yaffs_SkipVerification(obj->myDev))
- return;
-
-}
static void yaffs_VerifyHardLink(yaffs_Object *obj)
{
return;
/* Check sane object header chunk */
-
- chunkMin = dev->internalStartBlock * dev->nChunksPerBlock;
- chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1;
-
- chunkIdOk = (((unsigned)(obj->chunkId)) >= chunkMin && ((unsigned)(obj->chunkId)) <= chunkMax);
- chunkIsLive = chunkIdOk &&
- yaffs_CheckChunkBit(dev,
- obj->chunkId / dev->nChunksPerBlock,
- obj->chunkId % dev->nChunksPerBlock);
- if(!obj->fake &&
+
+ chunkMin = dev->internalStartBlock * dev->nChunksPerBlock;
+ chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1;
+
+ chunkIdOk = (((unsigned)(obj->hdrChunk)) >= chunkMin && ((unsigned)(obj->hdrChunk)) <= chunkMax);
+ chunkIsLive = chunkIdOk &&
+ yaffs_CheckChunkBit(dev,
+ obj->hdrChunk / dev->nChunksPerBlock,
+ obj->hdrChunk % dev->nChunksPerBlock);
+ if(!obj->fake &&
(!chunkIdOk || !chunkIsLive)) {
T(YAFFS_TRACE_VERIFY,
(TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
- obj->objectId,obj->chunkId,
+ obj->objectId,obj->hdrChunk,
chunkIdOk ? "" : ",out of range",
chunkIsLive || !chunkIdOk ? "" : ",marked as deleted"));
}
__u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__);
oh = (yaffs_ObjectHeader *)buffer;
-
- yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags);
-
+
+ yaffs_ReadChunkWithTagsFromNAND(dev, obj->hdrChunk,buffer, &tags);
+
yaffs_VerifyObjectHeader(obj,oh,&tags,1);
yaffs_ReleaseTempBuffer(dev,buffer,__LINE__);
}
/*
- * Access functions to useful fake objects
+ * Access functions to useful fake objects.
+ * Note that root might have a presence in NAND if permissions are set.
*/
yaffs_Object *yaffs_Root(yaffs_Device * dev)
__u16 sum = 0;
__u16 i = 1;
- YUCHAR *bname = (YUCHAR *) name;
+ const YUCHAR *bname = (const YUCHAR *) name;
if (bname) {
while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) {
bname++;
}
}
+
return sum;
}
static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name)
{
#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
+ memset(obj->shortName,0,sizeof (YCHAR) * (YAFFS_SHORT_NAME_LENGTH+1));
if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) {
yaffs_strcpy(obj->shortName, name);
} else {
{
yaffs_Object *tn = NULL;
+#ifdef VALGRIND_TEST
+ tn = YMALLOC(sizeof(yaffs_Object));
+#else
/* If there are none left make more */
if (!dev->freeObjects) {
yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS);
dev->freeObjects =
(yaffs_Object *) (dev->freeObjects->siblings.next);
dev->nFreeObjects--;
-
+ }
+#endif
+ if(tn){
/* Now sweeten it up... */
memset(tn, 0, sizeof(yaffs_Object));
- 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);
+ tn->myDev = dev;
+ tn->hdrChunk = 0;
+ tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN;
+ YINIT_LIST_HEAD(&(tn->hardLinks));
+ YINIT_LIST_HEAD(&(tn->hashLink));
+ YINIT_LIST_HEAD(&tn->siblings);
+
+
+ /* Now make the directory sane */
+ if(dev->rootDir){
+ tn->parent = dev->rootDir;
+ ylist_add(&(tn->siblings),&dev->rootDir->variant.directoryVariant.children);
+ }
/* Add it to the lost and found directory.
* NB Can't put root or lostNFound in lostNFound so
yaffs_Object *obj =
yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY);
if (obj) {
- obj->fake = 1; /* it is fake so it has no NAND presence... */
+ obj->fake = 1; /* it is fake so it might have no NAND presence... */
obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */
obj->unlinkAllowed = 0; /* ... or unlink it */
obj->deleted = 0;
obj->unlinked = 0;
obj->yst_mode = mode;
obj->myDev = dev;
- obj->chunkId = 0; /* Not a valid chunk. */
+ obj->hdrChunk = 0; /* Not a valid chunk. */
}
return obj;
yaffs_Device *dev = tn->myDev;
+
+ if(tn->parent)
+ YBUG();
+ if(!ylist_empty(&tn->siblings))
+ YBUG();
+
+
#ifdef __KERNEL__
if (tn->myInode) {
/* We're still hooked up to a cached inode.
yaffs_UnhashObject(tn);
+#ifdef VALGRIND_TEST
+ YFREE(tn);
+#else
/* Link into the free list. */
tn->siblings.next = (struct ylist_head *)(dev->freeObjects);
dev->freeObjects = tn;
dev->nFreeObjects++;
-
+#endif
dev->nCheckpointBlocksRequired = 0; /* force recalculation*/
}
theObject->yst_atime = theObject->yst_mtime =
theObject->yst_ctime = Y_CURRENT_TIME;
#endif
+
+#if 0
+ theObject->sum_prev = 12345;
+ theObject->sum_trailer = 6789;
+#endif
+
switch (type) {
case YAFFS_OBJECT_TYPE_FILE:
theObject->variant.fileVariant.fileSize = 0;
}
in = yaffs_CreateNewObject(dev, -1, type);
+
+ if(!in)
+ return YAFFS_FAIL;
if(type == YAFFS_OBJECT_TYPE_SYMLINK){
str = yaffs_CloneString(aliasString);
if (in) {
- in->chunkId = -1;
+ in->hdrChunk = 0;
in->valid = 1;
in->variantType = type;
if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
T(YAFFS_TRACE_ALWAYS,
(TSTR
- ("tragendy: yaffs_ChangeObjectName: newDir is not a directory"
+ ("tragedy: yaffs_ChangeObjectName: newDir is not a directory"
TENDSTR)));
YBUG();
}
int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
yaffs_Object * newDir, const YCHAR * newName)
{
- yaffs_Object *obj;
- yaffs_Object *existingTarget;
+ yaffs_Object *obj=NULL;
+ yaffs_Object *existingTarget=NULL;
int force = 0;
+
+
+ if(!oldDir || oldDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+ YBUG();
+ if(!newDir || newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+ YBUG();
#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
/* Special case for case insemsitive systems (eg. WinCE).
}
#endif
- obj = yaffs_FindObjectByName(oldDir, oldName);
- /* Check new name to long. */
- if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK &&
- yaffs_strlen(newName) > YAFFS_MAX_ALIAS_LENGTH)
- /* ENAMETOOLONG */
- return YAFFS_FAIL;
- else if (obj->variantType != YAFFS_OBJECT_TYPE_SYMLINK &&
- yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH)
+ else if (yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH)
/* ENAMETOOLONG */
return YAFFS_FAIL;
+ obj = yaffs_FindObjectByName(oldDir, oldName);
+
if (obj && obj->renameAllowed) {
/* Now do the handling for an existing target, if there is one */
* Can't get space to gc
*/
T(YAFFS_TRACE_ERROR,
- (TSTR("yaffs tragedy: no more eraased blocks" TENDSTR)));
+ (TSTR("yaffs tragedy: no more erased blocks" TENDSTR)));
return -1;
}
T(YAFFS_TRACE_ALWAYS,
(TSTR
- ("yaffs tragedy: no more eraased blocks, but there should have been %d"
+ ("yaffs tragedy: no more erased blocks, but there should have been %d"
TENDSTR), dev->nErasedBlocks));
return -1;
static int yaffs_CalcCheckpointBlocksRequired(yaffs_Device *dev)
{
- if(!dev->nCheckpointBlocksRequired){
+ if(!dev->nCheckpointBlocksRequired &&
+ dev->isYaffs2){
/* Not a valid value so recalculate */
int nBytes = 0;
int nBlocks;
int reservedBlocks = dev->nReservedBlocks;
int checkpointBlocks;
- checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) - dev->blocksInCheckpoint;
- if(checkpointBlocks < 0)
- checkpointBlocks = 0;
+ if(dev->isYaffs2){
+ checkpointBlocks = yaffs_CalcCheckpointBlocksRequired(dev) -
+ dev->blocksInCheckpoint;
+ if(checkpointBlocks < 0)
+ checkpointBlocks = 0;
+ } else {
+ checkpointBlocks =0;
+ }
reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock);
yaffs_VerifyBlock(dev,bi,block);
for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock;
+ retVal == YAFFS_OK &&
chunkInBlock < dev->nChunksPerBlock
&& yaffs_StillSomeChunkBits(dev, block);
chunkInBlock++, oldChunk++) {
if(object && !yaffs_SkipVerification(dev)){
if(tags.chunkId == 0)
- matchingChunk = object->chunkId;
+ matchingChunk = object->hdrChunk;
else if(object->softDeleted)
matchingChunk = oldChunk; /* Defeat the test */
else
tags.objectId, tags.chunkId, tags.byteCount));
}
- if (object && object->deleted
- && tags.chunkId != 0) {
- /* Data chunk in a deleted file, throw it away
+ if (object &&
+ object->deleted &&
+ object->softDeleted &&
+ tags.chunkId != 0) {
+ /* Data chunk in a soft deleted file, throw it away
* It's a soft deleted data chunk,
* No need to copy this, just forget about it and
* fix up the object.
/* Deleted object header with no data chunks.
* Can be discarded and the file deleted.
*/
- object->chunkId = 0;
+ object->hdrChunk = 0;
yaffs_FreeTnode(object->myDev,
object->variant.
fileVariant.top);
yaffs_ObjectHeader *oh;
oh = (yaffs_ObjectHeader *)buffer;
oh->isShrink = 0;
- oh->shadowsObject = oh->inbandShadowsObject = -1;
+/* oh->shadowsObject = oh->inbandShadowsObject = -1; */
tags.extraShadows = 0;
tags.extraIsShrinkHeader = 0;
if (tags.chunkId == 0) {
/* It's a header */
- object->chunkId = newChunk;
+ object->hdrChunk = newChunk;
object->serial = tags.serialNumber;
} else {
/* It's a data chunk */
}
}
- yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
+ if(retVal == YAFFS_OK)
+ yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
}
}
dev->isDoingGC = 0;
- return YAFFS_OK;
+ return retVal;
}
/* New garbage collector
* Update: For backward scanning we don't need to re-read tags so this is quite cheap.
*/
- if (existingChunk != 0) {
+ if (existingChunk > 0) {
/* NB Right now existing chunk will not be real chunkId if the device >= 32MB
* thus we have to do a FindChunkInFile to get the real chunk id.
*
* not be loaded during a scan
*/
- newSerial = newTags.serialNumber;
- existingSerial = existingTags.serialNumber;
+ if(inScan > 0) {
+ newSerial = newTags.serialNumber;
+ existingSerial = existingTags.serialNumber;
+ }
if ((inScan > 0) &&
(in->myDev->isYaffs2 ||
newTags.serialNumber =
(prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1;
newTags.byteCount = nBytes;
+
+ if(nBytes < 1 || nBytes > dev->totalBytesPerChunk){
+ T(YAFFS_TRACE_ERROR,
+ (TSTR("Writing %d bytes to chunk!!!!!!!!!" TENDSTR), nBytes));
+ while(1){}
+ }
+
+
newChunkId =
yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
yaffs_strcpy(oldName,_Y("silly old name"));
- if (!in->fake || force) {
+
+ if (!in->fake ||
+ in == dev->rootDir || /* The rootDir should also be saved */
+ force) {
yaffs_CheckGarbageCollection(dev);
yaffs_CheckObjectDetailsLoaded(in);
buffer = yaffs_GetTempBuffer(in->myDev, __LINE__);
oh = (yaffs_ObjectHeader *) buffer;
- prevChunkId = in->chunkId;
+ prevChunkId = in->hdrChunk;
- if (prevChunkId >= 0) {
+ if (prevChunkId > 0) {
result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId,
buffer, &oldTags);
if (newChunkId >= 0) {
- in->chunkId = newChunkId;
+ in->hdrChunk = newChunkId;
if (prevChunkId >= 0) {
yaffs_DeleteChunk(dev, prevChunkId, 1,
static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev)
{
int i;
- int usage;
- int theOne;
if (dev->nShortOpCaches > 0) {
for (i = 0; i < dev->nShortOpCaches; i++) {
if (!dev->srCache[i].object)
return &dev->srCache[i];
}
-
- return NULL;
-
- theOne = -1;
- usage = 0; /* just to stop the compiler grizzling */
-
- for (i = 0; i < dev->nShortOpCaches; i++) {
- if (!dev->srCache[i].dirty &&
- ((dev->srCache[i].lastUse < usage && theOne >= 0) ||
- theOne < 0)) {
- usage = dev->srCache[i].lastUse;
- theOne = i;
- }
- }
-
-
- return theOne >= 0 ? &dev->srCache[theOne] : NULL;
- } else {
- return NULL;
}
+ return NULL;
}
static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev)
cp->objectId = obj->objectId;
cp->parentId = (obj->parent) ? obj->parent->objectId : 0;
- cp->chunkId = obj->chunkId;
- cp->variantType = obj->variantType;
+ cp->hdrChunk = obj->hdrChunk;
+ cp->variantType = obj->variantType;
cp->deleted = obj->deleted;
cp->softDeleted = obj->softDeleted;
cp->unlinked = obj->unlinked;
if(parent)
yaffs_AddObjectToDirectory(parent, obj);
-
- obj->chunkId = cp->chunkId;
- obj->variantType = cp->variantType;
+
+ obj->hdrChunk = cp->hdrChunk;
+ obj->variantType = cp->variantType;
obj->deleted = cp->deleted;
obj->softDeleted = cp->softDeleted;
obj->unlinked = cp->unlinked;
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)
+
+ if(obj->hdrChunk > 0)
obj->lazyLoaded = 1;
}
T(YAFFS_TRACE_CHECKPOINT,(
TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR),
- cp.objectId,cp.parentId,cp.variantType,cp.chunkId,(unsigned) obj));
-
+ cp.objectId,cp.parentId,cp.variantType,cp.hdrChunk,(unsigned) obj));
+
ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp));
if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){
}
T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
- cp.objectId,cp.parentId,cp.variantType,cp.chunkId));
-
+ cp.objectId,cp.parentId,cp.variantType,cp.hdrChunk));
+
if(ok && cp.objectId == ~0)
done = 1;
else if(ok){
//chunk = offset / dev->nDataBytesPerChunk + 1;
//start = offset % dev->nDataBytesPerChunk;
yaffs_AddrToChunk(dev,offset,&chunk,&start);
+
+ if(chunk * dev->nDataBytesPerChunk + start != offset ||
+ start >= dev->nDataBytesPerChunk){
+ T(YAFFS_TRACE_ERROR,(TSTR("AddrToChunk of offset %d gives chunk %d start %d"TENDSTR),
+ (int)offset, chunk,start));
+ }
chunk++;
/* OK now check for the curveball where the start and end are in
nToWriteBack =
(nBytesRead >
- (start + n)) ? nBytesRead : (start + n);
+ ((int)start + n)) ? nBytesRead : (start + n);
} else {
nToCopy = dev->nDataBytesPerChunk - start;
* show we've shrunk the file, if need be
* Do this only if the file is not in the deleted directories.
*/
- if (in->parent->objectId != YAFFS_OBJECTID_UNLINKED &&
+ if (in->parent &&
+ in->parent->objectId != YAFFS_OBJECTID_UNLINKED &&
in->parent->objectId != YAFFS_OBJECTID_DELETED) {
yaffs_UpdateObjectHeader(in, NULL, 0,
(newSize < oldFileSize) ? 1 : 0, 0);
}
yaffs_RemoveObjectFromDirectory(in);
- yaffs_DeleteChunk(in->myDev, in->chunkId, 1, __LINE__);
- in->chunkId = -1;
+ yaffs_DeleteChunk(in->myDev, in->hdrChunk, 1, __LINE__);
+ in->hdrChunk = 0;
yaffs_FreeObject(in);
return YAFFS_OK;
* and the inode associated with the file.
* It does not delete the links associated with the file.
*/
+
static int yaffs_UnlinkFile(yaffs_Object * in)
{
int retVal;
int immediateDeletion = 0;
- if (1) {
#ifdef __KERNEL__
- if (!in->myInode) {
- immediateDeletion = 1;
-
- }
+ if (!in->myInode) {
+ immediateDeletion = 1;
+ }
#else
- if (in->inUse <= 0) {
- immediateDeletion = 1;
-
- }
+ if (in->inUse <= 0) {
+ immediateDeletion = 1;
+ }
#endif
- if (immediateDeletion) {
- retVal =
- yaffs_ChangeObjectName(in, in->myDev->deletedDir,
- _Y("deleted"), 0, 0);
- T(YAFFS_TRACE_TRACING,
- (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
- in->objectId));
- in->deleted = 1;
- in->myDev->nDeletedFiles++;
- if (0 && in->myDev->isYaffs2) {
- yaffs_ResizeFile(in, 0);
- }
- yaffs_SoftDeleteFile(in);
- } else {
- retVal =
- yaffs_ChangeObjectName(in, in->myDev->unlinkedDir,
- _Y("unlinked"), 0, 0);
- }
+ if (immediateDeletion) {
+ retVal =
+ yaffs_ChangeObjectName(in, in->myDev->deletedDir,
+ _Y("deleted"), 0, 0);
+ T(YAFFS_TRACE_TRACING,
+ (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
+ in->objectId));
+ in->deleted = 1;
+ in->myDev->nDeletedFiles++;
+ if (1 || in->myDev->isYaffs2) {
+ yaffs_ResizeFile(in, 0);
+ }
+ yaffs_SoftDeleteFile(in);
+ } else {
+ retVal =
+ yaffs_ChangeObjectName(in, in->myDev->unlinkedDir,
+ _Y("unlinked"), 0, 0);
}
+
+
return retVal;
}
int yaffs_DeleteFile(yaffs_Object * in)
{
int retVal = YAFFS_OK;
+ int deleted = in->deleted;
+
+ yaffs_ResizeFile(in,0);
if (in->nDataChunks > 0) {
- /* Use soft deletion if there is data in the file */
+ /* Use soft deletion if there is data in the file.
+ * That won't be the case if it has been resized to zero.
+ */
if (!in->unlinked) {
retVal = yaffs_UnlinkFile(in);
}
if (retVal == YAFFS_OK && in->unlinked && !in->deleted) {
- in->deleted = 1;
+ in->deleted = deleted = 1;
in->myDev->nDeletedFiles++;
yaffs_SoftDeleteFile(in);
}
- return in->deleted ? YAFFS_OK : YAFFS_FAIL;
+ return deleted ? YAFFS_OK : YAFFS_FAIL;
} else {
/* The file has no data chunks so we toss it immediately */
yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top);
/* remove this hardlink from the list assocaited with the equivalent
* object
*/
- ylist_del(&in->hardLinks);
+ ylist_del_init(&in->hardLinks);
return yaffs_DoGenericObjectDeletion(in);
}
__u8 *chunkData;
- //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),
/* Let's have a good look at this chunk... */
- if (!dev->isYaffs2 && tags.chunkDeleted) {
+ if (tags.eccResult == YAFFS_ECC_RESULT_UNFIXED || tags.chunkDeleted) {
/* YAFFS1 only...
* A deleted chunk
*/
dev->allocationBlockFinder = blk;
/* Set it to here to encourage the allocator to go forth from here. */
- /* Yaffs2 sanity check:
- * This should be the one with the highest sequence number
- */
- if (dev->isYaffs2
- && (dev->sequenceNumber !=
- bi->sequenceNumber)) {
- T(YAFFS_TRACE_ALWAYS,
- (TSTR
- ("yaffs: Allocation block %d was not highest sequence id: block seq = %d, dev seq = %d"
- TENDSTR), blk,bi->sequenceNumber,dev->sequenceNumber));
- }
}
dev->nFreeChunks += (dev->nChunksPerBlock - c);
unsigned existingSerial = in->serial;
unsigned newSerial = tags.serialNumber;
- if (dev->isYaffs2 ||
- ((existingSerial + 1) & 3) ==
- newSerial) {
+ if (((existingSerial + 1) & 3) == newSerial) {
/* Use new one - destroy the exisiting one */
yaffs_DeleteChunk(dev,
- in->chunkId,
+ in->hdrChunk,
1, __LINE__);
in->valid = 0;
} else {
in->yst_ctime = oh->yst_ctime;
in->yst_rdev = oh->yst_rdev;
#endif
- in->chunkId = chunk;
+ in->hdrChunk = chunk;
+ in->serial = tags.serialNumber;
} else if (in && !in->valid) {
/* we need to load this info */
in->yst_ctime = oh->yst_ctime;
in->yst_rdev = oh->yst_rdev;
#endif
- in->chunkId = chunk;
+ in->hdrChunk = chunk;
+ in->serial = tags.serialNumber;
yaffs_SetObjectName(in, oh->name);
in->dirty = 0;
/* Todo got a problem */
break;
case YAFFS_OBJECT_TYPE_FILE:
- if (dev->isYaffs2
- && oh->isShrink) {
- /* Prune back the shrunken chunks */
- yaffs_PruneResizedChunks
- (in, oh->fileSize);
- /* Mark the block as having a shrinkHeader */
- bi->hasShrinkHeader = 1;
- }
-
if (dev->useHeaderFileSize)
in->variant.fileVariant.
break;
}
- if (parent == dev->deletedDir) {
+/*
+ if (parent == dev->deletedDir) {
yaffs_DestroyObject(in);
bi->hasShrinkHeader = 1;
}
+*/
}
}
}
{
__u8 *chunkData;
yaffs_ObjectHeader *oh;
- yaffs_Device *dev = in->myDev;
+ yaffs_Device *dev;
yaffs_ExtendedTags tags;
int result;
int alloc_failed = 0;
if(!in)
return;
+ dev = in->myDev;
+
#if 0
T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR),
in->objectId,
in->lazyLoaded ? "not yet" : "already"));
#endif
- if(in->lazyLoaded){
+ if(in->lazyLoaded && in->hdrChunk > 0){
in->lazyLoaded = 0;
chunkData = yaffs_GetTempBuffer(dev, __LINE__);
- result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags);
- oh = (yaffs_ObjectHeader *) chunkData;
+ result = yaffs_ReadChunkWithTagsFromNAND(dev,in->hdrChunk,chunkData,&tags);
+ oh = (yaffs_ObjectHeader *) chunkData;
in->yst_mode = oh->yst_mode;
#ifdef CONFIG_YAFFS_WINCE
} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
/* Determine the highest sequence number */
- if (dev->isYaffs2 &&
- sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
+ if (sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
blockIndex[nBlocksToScan].seq = sequenceNumber;
if (sequenceNumber >= dev->sequenceNumber) {
dev->sequenceNumber = sequenceNumber;
}
- } else if (dev->isYaffs2) {
+ } else {
/* TODO: Nasty sequence number! */
T(YAFFS_TRACE_SCAN,
(TSTR
* had a write failure, so set up for retirement.
*/
- bi->needsRetiring = 1;
+ /* bi->needsRetiring = 1; ??? TODO */
bi->gcPrioritise = 1;
T(YAFFS_TRACE_ALWAYS,
- (TSTR("Partially written block %d being set for retirement" TENDSTR),
+ (TSTR("Partially written block %d detected" TENDSTR),
blk));
}
(oh) ? oh->
parentObjectId : tags.
extraParentObjectId;
- unsigned isShrink =
+
+
+ isShrink =
(oh) ? oh->isShrink : tags.
extraIsShrinkHeader;
in->variantType = tags.extraObjectType;
in->lazyLoaded = 1;
}
-
- in->chunkId = chunk;
+
+ in->hdrChunk = chunk;
} else if (!in->valid) {
/* we need to load this info */
in->valid = 1;
- in->chunkId = chunk;
-
+ in->hdrChunk = chunk;
+
if(oh) {
in->variantType = oh->type;
/*------------------------------ Directory Functions ----------------------------- */
+static void yaffs_VerifyObjectInDirectory(yaffs_Object *obj)
+{
+ struct ylist_head *lh;
+ yaffs_Object *listObj;
+
+ int count = 0;
+
+ if(!obj)
+ YBUG();
+
+ if(yaffs_SkipVerification(obj->myDev))
+ return;
+
+ if(!obj->parent)
+ YBUG();
+
+ if(obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+ YBUG();
+
+ /* Iterate through the objects in each hash entry */
+
+ ylist_for_each(lh, &obj->parent->variant.directoryVariant.children) {
+ if (lh) {
+ listObj = ylist_entry(lh, yaffs_Object, siblings);
+ yaffs_VerifyObject(listObj);
+ if(obj == listObj)
+ count ++;
+ }
+ }
+
+ if(count != 1)
+ YBUG();
+
+
+}
+
+static void yaffs_VerifyDirectory(yaffs_Object *directory)
+{
+
+ struct ylist_head *lh;
+ yaffs_Object *listObj;
+
+ if(!directory)
+ YBUG();
+
+ if(yaffs_SkipVerification(directory->myDev))
+ return;
+
+
+ if(directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY)
+ YBUG();
+
+ /* Iterate through the objects in each hash entry */
+
+ ylist_for_each(lh, &directory->variant.directoryVariant.children) {
+ if (lh) {
+ listObj = ylist_entry(lh, yaffs_Object, siblings);
+ if(listObj->parent != directory)
+ YBUG();
+ yaffs_VerifyObjectInDirectory(listObj);
+ }
+ }
+
+}
+
+
static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj)
{
yaffs_Device *dev = obj->myDev;
+ yaffs_Object *parent;
+
+ yaffs_VerifyObjectInDirectory(obj);
+ parent = obj->parent;
+ yaffs_VerifyDirectory(parent);
+
if(dev && dev->removeObjectCallback)
dev->removeObjectCallback(obj);
+
ylist_del_init(&obj->siblings);
obj->parent = NULL;
+
+ yaffs_VerifyDirectory(parent);
+
}
if (obj->siblings.prev == NULL) {
/* Not initialised */
- YINIT_LIST_HEAD(&obj->siblings);
+ YBUG();
- } else if (!ylist_empty(&obj->siblings)) {
- /* If it is holed up somewhere else, un hook it */
- yaffs_RemoveObjectFromDirectory(obj);
- }
+ } else if (ylist_empty(&obj->siblings)) {
+ YBUG();
+ }
+
+
+ yaffs_VerifyDirectory(directory);
+
+ yaffs_RemoveObjectFromDirectory(obj);
+
+
/* Now add it */
ylist_add(&obj->siblings, &directory->variant.directoryVariant.children);
obj->parent = directory;
obj->myDev->nUnlinkedFiles++;
obj->renameAllowed = 0;
}
+
+ yaffs_VerifyDirectory(directory);
+ yaffs_VerifyObjectInDirectory(obj);
+
+
}
yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory,
if (i) {
l = ylist_entry(i, yaffs_Object, siblings);
+ if(l->parent != directory)
+ YBUG();
+
yaffs_CheckObjectDetailsLoaded(l);
/* Special case for lost-n-found */
if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) {
return l;
}
- } else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0)
- {
- /* LostnFound cunk called Objxxx
+ } else if (yaffs_SumCompare(l->sum, sum) || l->hdrChunk <= 0){
+ /* LostnFound chunk called Objxxx
* Do a real check
*/
yaffs_GetObjectName(l, buffer,
if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1);
- } else if (obj->chunkId <= 0) {
+ } else if (obj->hdrChunk <= 0) {
YCHAR locName[20];
+ YCHAR numString[20];
+ YCHAR *x = &numString[19];
+ unsigned v = obj->objectId;
+ numString[19] = 0;
+ while(v>0){
+ x--;
+ *x = '0' + (v % 10);
+ v /= 10;
+ }
/* make up a name */
- yaffs_sprintf(locName, _Y("%s%d"), YAFFS_LOSTNFOUND_PREFIX,
- obj->objectId);
+ yaffs_strcpy(locName, YAFFS_LOSTNFOUND_PREFIX);
+ yaffs_strcat(locName,x);
yaffs_strncpy(name, locName, buffSize - 1);
}
memset(buffer, 0, obj->myDev->nDataBytesPerChunk);
- if (obj->chunkId >= 0) {
+ if (obj->hdrChunk > 0) {
result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev,
- obj->chunkId, buffer,
+ obj->hdrChunk, buffer,
NULL);
}
yaffs_strncpy(name, oh->name, buffSize - 1);
("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d"
" chunk %d type %d size %d\n"
TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name,
- obj->dirty, obj->valid, obj->serial, obj->sum, obj->chunkId,
+ obj->dirty, obj->valid, obj->serial, obj->sum, obj->hdrChunk,
yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj)));
return YAFFS_OK;
/* Check geometry parameters. */
if ((!dev->inbandTags && dev->isYaffs2 && dev->totalBytesPerChunk < 1024) ||
- (!dev->isYaffs2 && dev->totalBytesPerChunk != 512) ||
+ (!dev->isYaffs2 && dev->totalBytesPerChunk < 512) ||
(dev->inbandTags && !dev->isYaffs2 ) ||
dev->nChunksPerBlock < 2 ||
dev->nReservedBlocks < 2 ||
dev->isMounted = 1;
-
-
/* OK now calculate a few things for the device */
/*
* 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<<dev->chunkShift) - 1;
- }
+ x = dev->nDataBytesPerChunk;
+ /* We always use dev->chunkShift and dev->chunkDiv */
+ dev->chunkShift = Shifts(x);
+ x >>= dev->chunkShift;
+ dev->chunkDiv = x;
+ /* We only use chunk mask if chunkDiv is 1 */
+ dev->chunkMask = (1<<dev->chunkShift) - 1;
-
/*
* Calculate chunkGroupBits.
* We need to find the next power of 2 > than internalEndBlock
dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES;
}
- buf = dev->srCache = YMALLOC(srCacheBytes);
+ dev->srCache = YMALLOC(srCacheBytes);
+
+ buf = (__u8 *) dev->srCache;
if(dev->srCache)
memset(dev->srCache,0,srCacheBytes);
/* Now scan the flash. */
if (dev->isYaffs2) {
if(yaffs_CheckpointRestore(dev)) {
+ yaffs_CheckObjectDetailsLoaded(dev->rootDir);
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs: restored from checkpoint" TENDSTR)));
} else {
dev->isMounted = 0;
+
+ if(dev->deinitialiseNAND)
+ dev->deinitialiseNAND(dev);
}
}
projects / yaffs2.git / blobdiff