remove more redundant files and clone files-2.6.23 for 2.6.24 - fixes rdc build errors

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13022 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 7469 deletions

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
deleted file mode 100644
index 2ab8146913..0000000000
--- a/target/linux/generic-2.6/files-2.6.26/fs/yaffs2/yaffs_guts.c
+++ /dev/null
@@ -1,7469 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 Aleph One Ltd.
- *   for Toby Churchill Ltd and Brightstar Engineering
- *
- * Created by Charles Manning <charles@aleph1.co.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-const char *yaffs_guts_c_version =
-    "$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_tagscompat.h"
-#ifndef  CONFIG_YAFFS_USE_OWN_SORT
-#include "yaffs_qsort.h"
-#endif
-#include "yaffs_nand.h"
-
-#include "yaffs_checkptrw.h"
-
-#include "yaffs_nand.h"
-#include "yaffs_packedtags2.h"
-
-
-#ifdef CONFIG_YAFFS_WINCE
-void yfsd_LockYAFFS(BOOL fsLockOnly);
-void yfsd_UnlockYAFFS(BOOL fsLockOnly);
-#endif
-
-#define YAFFS_PASSIVE_GC_CHUNKS 2
-
-#include "yaffs_ecc.h"
-
-
-/* Robustification (if it ever comes about...) */
-static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND);
-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk);
-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
-				     const __u8 * data,
-				     const yaffs_ExtendedTags * tags);
-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
-				    const yaffs_ExtendedTags * tags);
-
-/* Other local prototypes */
-static int yaffs_UnlinkObject( yaffs_Object *obj);
-static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj);
-
-static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList);
-
-static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device * dev,
-					     const __u8 * buffer,
-					     yaffs_ExtendedTags * tags,
-					     int useReserve);
-static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode,
-				  int chunkInNAND, int inScan);
-
-static yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
-					   yaffs_ObjectType type);
-static void yaffs_AddObjectToDirectory(yaffs_Object * directory,
-				       yaffs_Object * obj);
-static int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name,
-				    int force, int isShrink, int shadows);
-static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj);
-static int yaffs_CheckStructures(void);
-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level,
-			      int chunkOffset, int *limit);
-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in);
-
-static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo);
-
-static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo);
-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer,
-				    int lineNo);
-
-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
-				  int chunkInNAND);
-
-static int yaffs_UnlinkWorker(yaffs_Object * obj);
-static void yaffs_DestroyObject(yaffs_Object * obj);
-
-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId,
-			   int chunkInObject);
-
-loff_t yaffs_GetFileSize(yaffs_Object * obj);
-
-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr);
-
-static void yaffs_VerifyFreeChunks(yaffs_Device * dev);
-
-static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in);
-
-#ifdef YAFFS_PARANOID
-static int yaffs_CheckFileSanity(yaffs_Object * in);
-#else
-#define yaffs_CheckFileSanity(in)
-#endif
-
-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in);
-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId);
-
-static void yaffs_InvalidateCheckpoint(yaffs_Device *dev);
-
-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode,
-				 yaffs_ExtendedTags * tags);
-
-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos);
-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
-					  yaffs_FileStructure * fStruct,
-					  __u32 chunkId);
-
-
-/* Function to calculate chunk and offset */
-
-static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u32 *offset)
-{
-	if(dev->chunkShift){
-		/* Easy-peasy power of 2 case */
-		*chunk  = (__u32)(addr >> dev->chunkShift);
-		*offset = (__u32)(addr & dev->chunkMask);
-	}
-	else if(dev->crumbsPerChunk)
-	{
-		/* Case where we're using "crumbs" */
-		*offset = (__u32)(addr & dev->crumbMask);
-		addr >>= dev->crumbShift;
-		*chunk = ((__u32)addr)/dev->crumbsPerChunk;
-		*offset += ((addr - (*chunk * dev->crumbsPerChunk)) << dev->crumbShift);
-	}
-	else
-		YBUG();
-}
-
-/* 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)
-		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)
-{
-	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)
-{
-	int i, j;
-	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-		if (dev->tempBuffer[i].line == 0) {
-			dev->tempBuffer[i].line = lineNo;
-			if ((i + 1) > dev->maxTemp) {
-				dev->maxTemp = i + 1;
-				for (j = 0; j <= i; j++)
-					dev->tempBuffer[j].maxLine =
-					    dev->tempBuffer[j].line;
-			}
-
-			return dev->tempBuffer[i].buffer;
-		}
-	}
-
-	T(YAFFS_TRACE_BUFFERS,
-	  (TSTR("Out of temp buffers at line %d, other held by lines:"),
-	   lineNo));
-	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-		T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line));
-	}
-	T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR)));
-
-	/*
-	 * If we got here then we have to allocate an unmanaged one
-	 * This is not good.
-	 */
-
-	dev->unmanagedTempAllocations++;
-	return YMALLOC(dev->nDataBytesPerChunk);
-
-}
-
-static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer,
-				    int lineNo)
-{
-	int i;
-	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-		if (dev->tempBuffer[i].buffer == buffer) {
-			dev->tempBuffer[i].line = 0;
-			return;
-		}
-	}
-
-	if (buffer) {
-		/* assume it is an unmanaged one. */
-		T(YAFFS_TRACE_BUFFERS,
-		  (TSTR("Releasing unmanaged temp buffer in line %d" TENDSTR),
-		   lineNo));
-		YFREE(buffer);
-		dev->unmanagedTempDeallocations++;
-	}
-
-}
-
-/*
- * Determine if we have a managed buffer.
- */
-int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer)
-{
-	int i;
-	for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-		if (dev->tempBuffer[i].buffer == buffer)
-			return 1;
-
-	}
-
-    for (i = 0; i < dev->nShortOpCaches; i++) {
-        if( dev->srCache[i].data == buffer )
-            return 1;
-
-    }
-
-    if (buffer == dev->checkpointBuffer)
-      return 1;
-
-    T(YAFFS_TRACE_ALWAYS,
-	  (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR)));
-    return 0;
-}
-
-
-
-/*
- * Chunk bitmap manipulations
- */
-
-static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device * dev, int blk)
-{
-	if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
-		T(YAFFS_TRACE_ERROR,
-		  (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR),
-		   blk));
-		YBUG();
-	}
-	return dev->chunkBits +
-	    (dev->chunkBitmapStride * (blk - dev->internalStartBlock));
-}
-
-static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk)
-{
-	if(blk < dev->internalStartBlock || blk > dev->internalEndBlock ||
-	   chunk < 0 || chunk >= dev->nChunksPerBlock) {
-	   T(YAFFS_TRACE_ERROR,
-	    (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),blk,chunk));
-	    YBUG();
-	}
-}
-
-static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device * dev, int blk)
-{
-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-
-	memset(blkBits, 0, dev->chunkBitmapStride);
-}
-
-static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk)
-{
-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-
-	yaffs_VerifyChunkBitId(dev,blk,chunk);
-
-	blkBits[chunk / 8] &= ~(1 << (chunk & 7));
-}
-
-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));
-}
-
-static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device * dev, int blk, int chunk)
-{
-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-	yaffs_VerifyChunkBitId(dev,blk,chunk);
-
-	return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0;
-}
-
-static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device * dev, int blk)
-{
-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-	int i;
-	for (i = 0; i < dev->chunkBitmapStride; i++) {
-		if (*blkBits)
-			return 1;
-		blkBits++;
-	}
-	return 0;
-}
-
-static int yaffs_CountChunkBits(yaffs_Device * dev, int blk)
-{
-	__u8 *blkBits = yaffs_BlockBits(dev, blk);
-	int i;
-	int n = 0;
-	for (i = 0; i < dev->chunkBitmapStride; i++) {
-		__u8 x = *blkBits;
-		while(x){
-			if(x & 1)
-				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));
-}
-
-static int yaffs_SkipFullVerification(yaffs_Device *dev)
-{
-	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL));
-}
-
-static int yaffs_SkipNANDVerification(yaffs_Device *dev)
-{
-	return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND));
-}
-
-static const char * blockStateName[] = {
-"Unknown",
-"Needs scanning",
-"Scanning",
-"Empty",
-"Allocating",
-"Full",
-"Dirty",
-"Checkpoint",
-"Collecting",
-"Dead"
-};
-
-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:
-	 case YAFFS_BLOCK_STATE_NEEDS_SCANNING:
-		T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR),
-		n,blockStateName[bi->blockState]));
-	}
-
-	/* Check pages in use and soft deletions are legal */
-
-	actuallyUsed = bi->pagesInUse - bi->softDeletions;
-
-	if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock ||
-	   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
-	 */
-	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));
-	}
-}
-
-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);
-
-		if(bi->blockState >=0 && bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES)
-			nBlocksPerState[bi->blockState]++;
-		else
-			nIllegalBlockStates++;
-
-	}
-
-	T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR)));
-	T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR)));
-
-	T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates));
-	if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1)
-		T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR)));
-
-	for(i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++)
-		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),
-		 nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING]));
-
-	T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR)));
-
-}
-
-/*
- * Verify the object header. oh must be valid, but obj and tags may be NULL in which
- * case those tests will not be performed.
- */
-static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck)
-{
-	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));
-		return;
-	}
-
-	if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN ||
-	   oh->type > YAFFS_OBJECT_TYPE_MAX)
-	 	T(YAFFS_TRACE_VERIFY,
-		 (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR),
-		 tags->objectId, oh->type));
-
-	if(tags->objectId != obj->objectId)
-	 	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,
-		 (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR),
-	 	 tags->objectId, oh->parentObjectId));
-
-
-	if(parentCheck && obj->parent &&
-	   oh->parentObjectId != obj->parent->objectId &&
-	   (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED ||
-	    obj->parent->objectId != YAFFS_OBJECTID_DELETED))
-	 	T(YAFFS_TRACE_VERIFY,
-		 (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR),
-	 	 tags->objectId, oh->parentObjectId, obj->parent->objectId));
-
-
-	if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */
-		T(YAFFS_TRACE_VERIFY,
-		(TSTR("Obj %d header name is NULL"TENDSTR),
-		 obj->objectId));
-
-	if(tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */
-		T(YAFFS_TRACE_VERIFY,
-		(TSTR("Obj %d header name is 0xFF"TENDSTR),
-		 obj->objectId));
-}
-
-
-
-static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn,
-				  	__u32 level, int chunkOffset)
-{
-	int i;
-	yaffs_Device *dev = obj->myDev;
-	int ok = 1;
-	int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
-
-	if (tn) {
-		if (level > 0) {
-
-			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){
-				if (tn->internal[i]) {
-					ok = yaffs_VerifyTnodeWorker(obj,
-							tn->internal[i],
-							level - 1,
-							(chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i);
-				}
-			}
-		} else if (level == 0) {
-			int i;
-			yaffs_ExtendedTags tags;
-			__u32 objectId = obj->objectId;
-
-			chunkOffset <<=  YAFFS_TNODES_LEVEL0_BITS;
-
-			for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){
-				__u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
-
-				if(theChunk > 0){
-					/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */
-					yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags);
-					if(tags.objectId != objectId || tags.chunkId != chunkOffset){
-						T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
-							objectId, chunkOffset, theChunk,
-							tags.objectId, tags.chunkId));
-					}
-				}
-				chunkOffset++;
-			}
-		}
-	}
-
-	return ok;
-
-}
-
-
-static void yaffs_VerifyFile(yaffs_Object *obj)
-{
-	int requiredTallness;
-	int actualTallness;
-	__u32 lastChunk;
-	__u32 x;
-	__u32 i;
-	int ok;
-	yaffs_Device *dev;
-	yaffs_ExtendedTags tags;
-	yaffs_Tnode *tn;
-	__u32 objectId;
-
-	if(obj && yaffs_SkipVerification(obj->myDev))
-		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;
-	requiredTallness = 0;
-	while (x> 0) {
-		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.
-	 * 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);
-
-		if (tn) {
-			__u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
-			if(theChunk > 0){
-				/* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */
-				yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags);
-				if(tags.objectId != objectId || tags.chunkId != i){
-					T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR),
-						objectId, i, theChunk,
-						tags.objectId, tags.chunkId));
-				}
-			}
-		}
-
-	}
-
-}
-
-static void yaffs_VerifyDirectory(yaffs_Object *obj)
-{
-	if(obj && yaffs_SkipVerification(obj->myDev))
-		return;
-
-}
-
-static void yaffs_VerifyHardLink(yaffs_Object *obj)
-{
-	if(obj && yaffs_SkipVerification(obj->myDev))
-		return;
-
-	/* Verify sane equivalent object */
-}
-
-static void yaffs_VerifySymlink(yaffs_Object *obj)
-{
-	if(obj && yaffs_SkipVerification(obj->myDev))
-		return;
-
-	/* Verify symlink string */
-}
-
-static void yaffs_VerifySpecial(yaffs_Object *obj)
-{
-	if(obj && yaffs_SkipVerification(obj->myDev))
-		return;
-}
-
-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,
-					    obj->chunkId / dev->nChunksPerBlock,
-					    obj->chunkId % dev->nChunksPerBlock);
-	if(!obj->fake &&
-	    (!chunkIdOk || !chunkIsLive)) {
-	   T(YAFFS_TRACE_VERIFY,
-	   (TSTR("Obj %d has chunkId %d %s %s"TENDSTR),
-	   obj->objectId,obj->chunkId,
-	   chunkIdOk ? "" : ",out of range",
-	   chunkIsLive || !chunkIdOk ? "" : ",marked as deleted"));
-	}
-
-	if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) {
-		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));
-	}
-
-	/* 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));
-	}
-
-	switch(obj->variantType){
-	case YAFFS_OBJECT_TYPE_FILE:
-		yaffs_VerifyFile(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_SYMLINK:
-		yaffs_VerifySymlink(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_DIRECTORY:
-		yaffs_VerifyDirectory(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_HARDLINK:
-		yaffs_VerifyHardLink(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_SPECIAL:
-		yaffs_VerifySpecial(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_UNKNOWN:
-	default:
-		T(YAFFS_TRACE_VERIFY,
-		(TSTR("Obj %d has illegaltype %d"TENDSTR),
-		obj->objectId,obj->variantType));
-		break;
-	}
-
-
-}
-
-static void yaffs_VerifyObjects(yaffs_Device *dev)
-{
-	yaffs_Object *obj;
-	int i;
-	struct list_head *lh;
-
-	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) {
-			if (lh) {
-				obj = list_entry(lh, yaffs_Object, hashLink);
-				yaffs_VerifyObject(obj);
-			}
-		}
-	 }
-
-}
-
-
-/*
- *  Simple hash function. Needs to have a reasonable spread
- */
-
-static Y_INLINE int yaffs_HashFunction(int n)
-{
-	n = abs(n);
-	return (n % YAFFS_NOBJECT_BUCKETS);
-}
-
-/*
- * Access functions to useful fake objects
- */
-
-yaffs_Object *yaffs_Root(yaffs_Device * dev)
-{
-	return dev->rootDir;
-}
-
-yaffs_Object *yaffs_LostNFound(yaffs_Device * dev)
-{
-	return dev->lostNFoundDir;
-}
-
-
-/*
- *  Erased NAND checking functions
- */
-
-int yaffs_CheckFF(__u8 * buffer, int nBytes)
-{
-	/* Horrible, slow implementation */
-	while (nBytes--) {
-		if (*buffer != 0xFF)
-			return 0;
-		buffer++;
-	}
-	return 1;
-}
-
-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
-				  int chunkInNAND)
-{
-
-	int retval = YAFFS_OK;
-	__u8 *data = yaffs_GetTempBuffer(dev, __LINE__);
-	yaffs_ExtendedTags tags;
-	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,
-		  (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND));
-		retval = YAFFS_FAIL;
-	}
-
-	yaffs_ReleaseTempBuffer(dev, data, __LINE__);
-
-	return retval;
-
-}
-
-
-static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev,
-					     const __u8 * data,
-					     yaffs_ExtendedTags * tags,
-					     int useReserve)
-{
-	int attempts = 0;
-	int writeOk = 0;
-	int chunk;
-
-	yaffs_InvalidateCheckpoint(dev);
-
-	do {
-		yaffs_BlockInfo *bi = 0;
-		int erasedOk = 0;
-
-		chunk = yaffs_AllocateChunk(dev, useReserve, &bi);
-		if (chunk < 0) {
-			/* no space */
-			break;
-		}
-
-		/* First check this chunk is erased, if it needs
-		 * checking.  The checking policy (unless forced
-		 * always on) is as follows:
-		 *
-		 * Check the first page we try to write in a block.
-		 * If the check passes then we don't need to check any
-		 * more.	If the check fails, we check again...
-		 * If the block has been erased, we don't need to check.
-		 *
-		 * However, if the block has been prioritised for gc,
-		 * then we think there might be something odd about
-		 * this block and stop using it.
-		 *
-		 * Rationale: We should only ever see chunks that have
-		 * not been erased if there was a partially written
-		 * chunk due to power loss.  This checking policy should
-		 * catch that case with very few checks and thus save a
-		 * lot of checks that are most likely not needed.
-		 */
-		if (bi->gcPrioritise) {
-			yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
-			/* try another chunk */
-			continue;
-		}
-
-		/* let's give it a try */
-		attempts++;
-
-#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED
-		bi->skipErasedCheck = 0;
-#endif
-		if (!bi->skipErasedCheck) {
-			erasedOk = yaffs_CheckChunkErased(dev, chunk);
-			if (erasedOk != YAFFS_OK) {
-				T(YAFFS_TRACE_ERROR,
-				(TSTR ("**>> yaffs chunk %d was not erased"
-				TENDSTR), chunk));
-
-				/* try another chunk */
-				continue;
-			}
-			bi->skipErasedCheck = 1;
-		}
-
-		writeOk = yaffs_WriteChunkWithTagsToNAND(dev, chunk,
-				data, tags);
-		if (writeOk != YAFFS_OK) {
-			yaffs_HandleWriteChunkError(dev, chunk, erasedOk);
-			/* try another chunk */
-			continue;
-		}
-
-		/* Copy the data into the robustification buffer */
-		yaffs_HandleWriteChunkOk(dev, chunk, data, tags);
-
-	} while (writeOk != YAFFS_OK && attempts < yaffs_wr_attempts);
-
-	if (attempts > 1) {
-		T(YAFFS_TRACE_ERROR,
-			(TSTR("**>> yaffs write required %d attempts" TENDSTR),
-			attempts));
-
-		dev->nRetriedWrites += (attempts - 1);
-	}
-
-	return chunk;
-}
-
-/*
- * 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;
-	bi->gcPrioritise = 0;
-	bi->needsRetiring = 0;
-
-	dev->nRetiredBlocks++;
-}
-
-/*
- * Functions for robustisizing TODO
- *
- */
-
-static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND,
-				     const __u8 * data,
-				     const yaffs_ExtendedTags * tags)
-{
-}
-
-static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND,
-				    const yaffs_ExtendedTags * tags)
-{
-}
-
-void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi)
-{
-	if(!bi->gcPrioritise){
-		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)));
-
-		}
-
-	}
-}
-
-static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk)
-{
-
-	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
-	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND);
-
-	yaffs_HandleChunkError(dev,bi);
-
-
-	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 ------------*/
-
-static __u16 yaffs_CalcNameSum(const YCHAR * name)
-{
-	__u16 sum = 0;
-	__u16 i = 1;
-
-	YUCHAR *bname = (YUCHAR *) name;
-	if (bname) {
-		while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) {
-
-#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
-			sum += yaffs_toupper(*bname) * i;
-#else
-			sum += (*bname) * i;
-#endif
-			i++;
-			bname++;
-		}
-	}
-	return sum;
-}
-
-static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name)
-{
-#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
-	if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) {
-		yaffs_strcpy(obj->shortName, name);
-	} else {
-		obj->shortName[0] = _Y('\0');
-	}
-#endif
-	obj->sum = yaffs_CalcNameSum(name);
-}
-
-/*-------------------- TNODES -------------------
-
- * List of spare tnodes
- * 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
- */
-
-static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes)
-{
-	int i;
-	int tnodeSize;
-	yaffs_Tnode *newTnodes;
-	__u8 *mem;
-	yaffs_Tnode *curr;
-	yaffs_Tnode *next;
-	yaffs_TnodeList *tnl;
-
-	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;
-
-	/* make these things */
-
-	newTnodes = YMALLOC(nTnodes * tnodeSize);
-	mem = (__u8 *)newTnodes;
-
-	if (!newTnodes) {
-		T(YAFFS_TRACE_ERROR,
-		  (TSTR("yaffs: Could not allocate Tnodes" TENDSTR)));
-		return YAFFS_FAIL;
-	}
-
-	/* Hook them into the free list */
-#if 0
-	for (i = 0; i < nTnodes - 1; i++) {
-		newTnodes[i].internal[0] = &newTnodes[i + 1];
-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-		newTnodes[i].internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
-#endif
-	}
-
-	newTnodes[nTnodes - 1].internal[0] = dev->freeTnodes;
-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-	newTnodes[nTnodes - 1].internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
-#endif
-	dev->freeTnodes = newTnodes;
-#else
-	/* New hookup for wide tnodes */
-	for(i = 0; i < nTnodes -1; i++) {
-		curr = (yaffs_Tnode *) &mem[i * tnodeSize];
-		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;
-
-#endif
-
-
-	dev->nFreeTnodes += nTnodes;
-	dev->nTnodesCreated += nTnodes;
-
-	/* Now add this bunch of tnodes to a list for freeing up.
-	 * 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,
-		  (TSTR
-		   ("yaffs: Could not add tnodes to management list" TENDSTR)));
-		   return YAFFS_FAIL;
-
-	} else {
-		tnl->tnodes = newTnodes;
-		tnl->next = dev->allocatedTnodeList;
-		dev->allocatedTnodeList = tnl;
-	}
-
-	T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR)));
-
-	return YAFFS_OK;
-}
-
-/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */
-
-static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev)
-{
-	yaffs_Tnode *tn = NULL;
-
-	/* If there are none left make more */
-	if (!dev->freeTnodes) {
-		yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES);
-	}
-
-	if (dev->freeTnodes) {
-		tn = dev->freeTnodes;
-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-		if (tn->internal[YAFFS_NTNODES_INTERNAL] != (void *)1) {
-			/* Hoosterman, this thing looks like it isn't in the list */
-			T(YAFFS_TRACE_ALWAYS,
-			  (TSTR("yaffs: Tnode list bug 1" TENDSTR)));
-		}
-#endif
-		dev->freeTnodes = dev->freeTnodes->internal[0];
-		dev->nFreeTnodes--;
-	}
-
-	return tn;
-}
-
-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;
-}
-
-/* FreeTnode frees up a tnode and puts it back on the free list */
-static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn)
-{
-	if (tn) {
-#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG
-		if (tn->internal[YAFFS_NTNODES_INTERNAL] != 0) {
-			/* Hoosterman, this thing looks like it is already in the list */
-			T(YAFFS_TRACE_ALWAYS,
-			  (TSTR("yaffs: Tnode list bug 2" TENDSTR)));
-		}
-		tn->internal[YAFFS_NTNODES_INTERNAL] = (void *)1;
-#endif
-		tn->internal[0] = dev->freeTnodes;
-		dev->freeTnodes = tn;
-		dev->nFreeTnodes++;
-	}
-}
-
-static void yaffs_DeinitialiseTnodes(yaffs_Device * dev)
-{
-	/* Free the list of allocated tnodes */
-	yaffs_TnodeList *tmp;
-
-	while (dev->allocatedTnodeList) {
-		tmp = dev->allocatedTnodeList->next;
-
-		YFREE(dev->allocatedTnodeList->tnodes);
-		YFREE(dev->allocatedTnodeList);
-		dev->allocatedTnodeList = tmp;
-
-	}
-
-	dev->freeTnodes = NULL;
-	dev->nFreeTnodes = 0;
-}
-
-static void yaffs_InitialiseTnodes(yaffs_Device * dev)
-{
-	dev->allocatedTnodeList = NULL;
-	dev->freeTnodes = NULL;
-	dev->nFreeTnodes = 0;
-	dev->nTnodesCreated = 0;
-
-}
-
-
-void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsigned val)
-{
-  __u32 *map = (__u32 *)tn;
-  __u32 bitInMap;
-  __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++;;
-    mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord);
-    map[wordInMap] &= ~mask;
-    map[wordInMap] |= (mask & (val >> bitInWord));
-  }
-}
-
-static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos)
-{
-  __u32 *map = (__u32 *)tn;
-  __u32 bitInMap;
-  __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;
-}
-
-/* ------------------- End of individual tnode manipulation -----------------*/
-
-/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------
- * The look up tree is represented by the top tnode and the number of topLevel
- * in the tree. 0 means only the level 0 tnode is in the tree.
- */
-
-/* FindLevel0Tnode finds the level 0 tnode, if one exists. */
-static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev,
-					  yaffs_FileStructure * fStruct,
-					  __u32 chunkId)
-{
-
-	yaffs_Tnode *tn = fStruct->top;
-	__u32 i;
-	int requiredTallness;
-	int level = fStruct->topLevel;
-
-	/* Check sane level and chunk Id */
-	if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) {
-		return NULL;
-	}
-
-	if (chunkId > YAFFS_MAX_CHUNK_ID) {
-		return NULL;
-	}
-
-	/* First check we're tall enough (ie enough topLevel) */
-
-	i = chunkId >> YAFFS_TNODES_LEVEL0_BITS;
-	requiredTallness = 0;
-	while (i) {
-		i >>= YAFFS_TNODES_INTERNAL_BITS;
-		requiredTallness++;
-	}
-
-	if (requiredTallness > fStruct->topLevel) {
-		/* Not tall enough, so we can't find it, return NULL. */
-		return NULL;
-	}
-
-	/* Traverse down to level 0 */
-	while (level > 0 && tn) {
-		tn = tn->
-		    internal[(chunkId >>
-			       ( YAFFS_TNODES_LEVEL0_BITS +
-			         (level - 1) *
-			         YAFFS_TNODES_INTERNAL_BITS)
-			      ) &
-			     YAFFS_TNODES_INTERNAL_MASK];
-		level--;
-
-	}
-
-	return tn;
-}
-
-/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree.
- * This happens in two steps:
- *  1. If the tree isn't tall enough, then make it taller.
- *  2. Scan down the tree towards the level 0 tnode adding tnodes if required.
- *
- * Used when modifying the tree.
- *
- *  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,
-					       yaffs_Tnode *passedTn)
-{
-
-	int requiredTallness;
-	int i;
-	int l;
-	yaffs_Tnode *tn;
-
-	__u32 x;
-
-
-	/* Check sane level and page Id */
-	if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) {
-		return NULL;
-	}
-
-	if (chunkId > YAFFS_MAX_CHUNK_ID) {
-		return NULL;
-	}
-
-	/* First check we're tall enough (ie enough topLevel) */
-
-	x = chunkId >> YAFFS_TNODES_LEVEL0_BITS;
-	requiredTallness = 0;
-	while (x) {
-		x >>= YAFFS_TNODES_INTERNAL_BITS;
-		requiredTallness++;
-	}
-
-
-	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) {
-				tn->internal[0] = fStruct->top;
-				fStruct->top = tn;
-			} else {
-				T(YAFFS_TRACE_ERROR,
-				  (TSTR("yaffs: no more tnodes" TENDSTR)));
-			}
-		}
-
-		fStruct->topLevel = requiredTallness;
-	}
-
-	/* Traverse down to level 0, adding anything we need */
-
-	l = fStruct->topLevel;
-	tn = fStruct->top;
-
-	if(l > 0) {
-		while (l > 0 && tn) {
-			x = (chunkId >>
-			     ( YAFFS_TNODES_LEVEL0_BITS +
-			      (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) &
-			    YAFFS_TNODES_INTERNAL_MASK;
-
-
-			if((l>1) && !tn->internal[x]){
-				/* Add missing non-level-zero tnode */
-				tn->internal[x] = yaffs_GetTnode(dev);
-
-			} else if(l == 1) {
-				/* Looking from level 1 at level 0 */
-			 	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--;
-		}
-	} else {
-		/* top is level 0 */
-		if(passedTn) {
-			memcpy(tn,passedTn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
-			yaffs_FreeTnode(dev,passedTn);
-		}
-	}
-
-	return tn;
-}
-
-static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk,
-				  yaffs_ExtendedTags * tags, int objectId,
-				  int chunkInInode)
-{
-	int j;
-
-	for (j = 0; theChunk && j < dev->chunkGroupSize; j++) {
-		if (yaffs_CheckChunkBit
-		    (dev, theChunk / dev->nChunksPerBlock,
-		     theChunk % dev->nChunksPerBlock)) {
-			yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL,
-							tags);
-			if (yaffs_TagsMatch(tags, objectId, chunkInInode)) {
-				/* found it; */
-				return theChunk;
-
-			}
-		}
-		theChunk++;
-	}
-	return -1;
-}
-
-
-/* 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 0 if it stopped early due to hitting the limit and the delete is incomplete.
- */
-
-static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level,
-			      int chunkOffset, int *limit)
-{
-	int i;
-	int chunkInInode;
-	int theChunk;
-	yaffs_ExtendedTags tags;
-	int foundChunk;
-	yaffs_Device *dev = in->myDev;
-
-	int allDone = 1;
-
-	if (tn) {
-		if (level > 0) {
-
-			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
-			     i--) {
-				if (tn->internal[i]) {
-					if (limit && (*limit) < 0) {
-						allDone = 0;
-					} else {
-						allDone =
-						    yaffs_DeleteWorker(in,
-								       tn->
-								       internal
-								       [i],
-								       level -
-								       1,
-								       (chunkOffset
-									<<
-									YAFFS_TNODES_INTERNAL_BITS)
-								       + i,
-								       limit);
-					}
-					if (allDone) {
-						yaffs_FreeTnode(dev,
-								tn->
-								internal[i]);
-						tn->internal[i] = NULL;
-					}
-				}
-
-			}
-			return (allDone) ? 1 : 0;
-		} else if (level == 0) {
-			int hitLimit = 0;
-
-			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit;
-			     i--) {
-			        theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
-				if (theChunk) {
-
-					chunkInInode =
-					    (chunkOffset <<
-					     YAFFS_TNODES_LEVEL0_BITS) + i;
-
-					foundChunk =
-					    yaffs_FindChunkInGroup(dev,
-								   theChunk,
-								   &tags,
-								   in->objectId,
-								   chunkInInode);
-
-					if (foundChunk > 0) {
-						yaffs_DeleteChunk(dev,
-								  foundChunk, 1,
-								  __LINE__);
-						in->nDataChunks--;
-						if (limit) {
-							*limit = *limit - 1;
-							if (*limit <= 0) {
-								hitLimit = 1;
-							}
-						}
-
-					}
-
-					yaffs_PutLevel0Tnode(dev,tn,i,0);
-				}
-
-			}
-			return (i < 0) ? 1 : 0;
-
-		}
-
-	}
-
-	return 1;
-
-}
-
-static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk)
-{
-
-	yaffs_BlockInfo *theBlock;
-
-	T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk));
-
-	theBlock = yaffs_GetBlockInfo(dev, chunk / dev->nChunksPerBlock);
-	if (theBlock) {
-		theBlock->softDeletions++;
-		dev->nFreeChunks++;
-	}
-}
-
-/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file.
- * All soft deleting does is increment the block's softdelete count and pulls the chunk out
- * 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)
-{
-	int i;
-	int theChunk;
-	int allDone = 1;
-	yaffs_Device *dev = in->myDev;
-
-	if (tn) {
-		if (level > 0) {
-
-			for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0;
-			     i--) {
-				if (tn->internal[i]) {
-					allDone =
-					    yaffs_SoftDeleteWorker(in,
-								   tn->
-								   internal[i],
-								   level - 1,
-								   (chunkOffset
-								    <<
-								    YAFFS_TNODES_INTERNAL_BITS)
-								   + i);
-					if (allDone) {
-						yaffs_FreeTnode(dev,
-								tn->
-								internal[i]);
-						tn->internal[i] = NULL;
-					} else {
-						/* Hoosterman... how could this happen? */
-					}
-				}
-			}
-			return (allDone) ? 1 : 0;
-		} else if (level == 0) {
-
-			for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) {
-				theChunk = yaffs_GetChunkGroupBase(dev,tn,i);
-				if (theChunk) {
-					/* Note this does not find the real chunk, only the chunk group.
-					 * We make an assumption that a chunk group is not larger than
-					 * a block.
-					 */
-					yaffs_SoftDeleteChunk(dev, theChunk);
-					yaffs_PutLevel0Tnode(dev,tn,i,0);
-				}
-
-			}
-			return 1;
-
-		}
-
-	}
-
-	return 1;
-
-}
-
-static void yaffs_SoftDeleteFile(yaffs_Object * obj)
-{
-	if (obj->deleted &&
-	    obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) {
-		if (obj->nDataChunks <= 0) {
-			/* Empty file with no duplicate object headers, just delete it immediately */
-			yaffs_FreeTnode(obj->myDev,
-					obj->variant.fileVariant.top);
-			obj->variant.fileVariant.top = NULL;
-			T(YAFFS_TRACE_TRACING,
-			  (TSTR("yaffs: Deleting empty file %d" TENDSTR),
-			   obj->objectId));
-			yaffs_DoGenericObjectDeletion(obj);
-		} else {
-			yaffs_SoftDeleteWorker(obj,
-					       obj->variant.fileVariant.top,
-					       obj->variant.fileVariant.
-					       topLevel, 0);
-			obj->softDeleted = 1;
-		}
-	}
-}
-
-/* Pruning removes any part of the file structure tree that is beyond the
- * bounds of the file (ie that does not point to chunks).
- *
- * A file should only get pruned when its size is reduced.
- *
- * Before pruning, the chunks must be pulled from the tree and the
- * level 0 tnode entries must be zeroed out.
- * Could also use this for file deletion, but that's probably better handled
- * by a special case.
- */
-
-static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device * dev, yaffs_Tnode * tn,
-				      __u32 level, int del0)
-{
-	int i;
-	int hasData;
-
-	if (tn) {
-		hasData = 0;
-
-		for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) {
-			if (tn->internal[i] && level > 0) {
-				tn->internal[i] =
-				    yaffs_PruneWorker(dev, tn->internal[i],
-						      level - 1,
-						      (i == 0) ? del0 : 1);
-			}
-
-			if (tn->internal[i]) {
-				hasData++;
-			}
-		}
-
-		if (hasData == 0 && del0) {
-			/* Free and return NULL */
-
-			yaffs_FreeTnode(dev, tn);
-			tn = NULL;
-		}
-
-	}
-
-	return tn;
-
-}
-
-static int yaffs_PruneFileStructure(yaffs_Device * dev,
-				    yaffs_FileStructure * fStruct)
-{
-	int i;
-	int hasData;
-	int done = 0;
-	yaffs_Tnode *tn;
-
-	if (fStruct->topLevel > 0) {
-		fStruct->top =
-		    yaffs_PruneWorker(dev, fStruct->top, fStruct->topLevel, 0);
-
-		/* 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
-		 * (ie all the non-zero are NULL)
-		 */
-
-		while (fStruct->topLevel && !done) {
-			tn = fStruct->top;
-
-			hasData = 0;
-			for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) {
-				if (tn->internal[i]) {
-					hasData++;
-				}
-			}
-
-			if (!hasData) {
-				fStruct->top = tn->internal[0];
-				fStruct->topLevel--;
-				yaffs_FreeTnode(dev, tn);
-			} else {
-				done = 1;
-			}
-		}
-	}
-
-	return YAFFS_OK;
-}
-
-/*-------------------- End of File Structure functions.-------------------*/
-
-/* yaffs_CreateFreeObjects creates a bunch more objects and
- * adds them to the object free list.
- */
-static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects)
-{
-	int i;
-	yaffs_Object *newObjects;
-	yaffs_ObjectList *list;
-
-	if (nObjects < 1)
-		return YAFFS_OK;
-
-	/* make these things */
-	newObjects = YMALLOC(nObjects * sizeof(yaffs_Object));
-	list = YMALLOC(sizeof(yaffs_ObjectList));
-
-	if (!newObjects || !list) {
-		if(newObjects)
-			YFREE(newObjects);
-		if(list)
-			YFREE(list);
-		T(YAFFS_TRACE_ALLOCATE,
-		  (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 =
-		    (struct list_head *)(&newObjects[i + 1]);
-	}
-
-	newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects;
-	dev->freeObjects = newObjects;
-	dev->nFreeObjects += nObjects;
-	dev->nObjectsCreated += nObjects;
-
-	/* Now add this bunch of Objects to a list for freeing up. */
-
-	list->objects = newObjects;
-	list->next = dev->allocatedObjectList;
-	dev->allocatedObjectList = list;
-
-	return YAFFS_OK;
-}
-
-
-/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */
-static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev)
-{
-	yaffs_Object *tn = NULL;
-
-	/* If there are none left make more */
-	if (!dev->freeObjects) {
-		yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS);
-	}
-
-	if (dev->freeObjects) {
-		tn = dev->freeObjects;
-		dev->freeObjects =
-		    (yaffs_Object *) (dev->freeObjects->siblings.next);
-		dev->nFreeObjects--;
-
-		/* Now sweeten it up... */
-
-		memset(tn, 0, sizeof(yaffs_Object));
-		tn->myDev = dev;
-		tn->chunkId = -1;
-		tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN;
-		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
-		 * check if lostNFound exists first
-		 */
-		if (dev->lostNFoundDir) {
-			yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn);
-		}
-	}
-
-	return tn;
-}
-
-static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device * dev, int number,
-					       __u32 mode)
-{
-
-	yaffs_Object *obj =
-	    yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY);
-	if (obj) {
-		obj->fake = 1;		/* it is fake so it has no NAND presence... */
-		obj->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. */
-	}
-
-	return obj;
-
-}
-
-static void yaffs_UnhashObject(yaffs_Object * tn)
-{
-	int bucket;
-	yaffs_Device *dev = tn->myDev;
-
-	/* If it is still linked into the bucket list, free from the list */
-	if (!list_empty(&tn->hashLink)) {
-		list_del_init(&tn->hashLink);
-		bucket = yaffs_HashFunction(tn->objectId);
-		dev->objectBucket[bucket].count--;
-	}
-
-}
-
-/*  FreeObject frees up a Object and puts it back on the free list */
-static void yaffs_FreeObject(yaffs_Object * tn)
-{
-
-	yaffs_Device *dev = tn->myDev;
-
-#ifdef  __KERNEL__
-	if (tn->myInode) {
-		/* We're still hooked up to a cached inode.
-		 * Don't delete now, but mark for later deletion
-		 */
-		tn->deferedFree = 1;
-		return;
-	}
-#endif
-
-	yaffs_UnhashObject(tn);
-
-	/* Link into the free list. */
-	tn->siblings.next = (struct list_head *)(dev->freeObjects);
-	dev->freeObjects = tn;
-	dev->nFreeObjects++;
-}
-
-#ifdef __KERNEL__
-
-void yaffs_HandleDeferedFree(yaffs_Object * obj)
-{
-	if (obj->deferedFree) {
-		yaffs_FreeObject(obj);
-	}
-}
-
-#endif
-
-static void yaffs_DeinitialiseObjects(yaffs_Device * dev)
-{
-	/* Free the list of allocated Objects */
-
-	yaffs_ObjectList *tmp;
-
-	while (dev->allocatedObjectList) {
-		tmp = dev->allocatedObjectList->next;
-		YFREE(dev->allocatedObjectList->objects);
-		YFREE(dev->allocatedObjectList);
-
-		dev->allocatedObjectList = tmp;
-	}
-
-	dev->freeObjects = NULL;
-	dev->nFreeObjects = 0;
-}
-
-static void yaffs_InitialiseObjects(yaffs_Device * dev)
-{
-	int i;
-
-	dev->allocatedObjectList = NULL;
-	dev->freeObjects = NULL;
-	dev->nFreeObjects = 0;
-
-	for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) {
-		INIT_LIST_HEAD(&dev->objectBucket[i].list);
-		dev->objectBucket[i].count = 0;
-	}
-
-}
-
-static int yaffs_FindNiceObjectBucket(yaffs_Device * dev)
-{
-	static int x = 0;
-	int i;
-	int l = 999;
-	int lowest = 999999;
-
-	/* First let's see if we can find one that's empty. */
-
-	for (i = 0; i < 10 && lowest > 0; i++) {
-		x++;
-		x %= YAFFS_NOBJECT_BUCKETS;
-		if (dev->objectBucket[x].count < lowest) {
-			lowest = dev->objectBucket[x].count;
-			l = x;
-		}
-
-	}
-
-	/* If we didn't find an empty list, then try
-	 * looking a bit further for a short one
-	 */
-
-	for (i = 0; i < 10 && lowest > 3; i++) {
-		x++;
-		x %= YAFFS_NOBJECT_BUCKETS;
-		if (dev->objectBucket[x].count < lowest) {
-			lowest = dev->objectBucket[x].count;
-			l = x;
-		}
-
-	}
-
-	return l;
-}
-
-static int yaffs_CreateNewObjectNumber(yaffs_Device * dev)
-{
-	int bucket = yaffs_FindNiceObjectBucket(dev);
-
-	/* Now find an object value that has not already been taken
-	 * by scanning the list.
-	 */
-
-	int found = 0;
-	struct list_head *i;
-
-	__u32 n = (__u32) bucket;
-
-	/* yaffs_CheckObjectHashSanity();  */
-
-	while (!found) {
-		found = 1;
-		n += YAFFS_NOBJECT_BUCKETS;
-		if (1 || dev->objectBucket[bucket].count > 0) {
-			list_for_each(i, &dev->objectBucket[bucket].list) {
-				/* If there is already one in the list */
-				if (i
-				    && list_entry(i, yaffs_Object,
-						  hashLink)->objectId == n) {
-					found = 0;
-				}
-			}
-		}
-	}
-
-
-	return n;
-}
-
-static void yaffs_HashObject(yaffs_Object * in)
-{
-	int bucket = yaffs_HashFunction(in->objectId);
-	yaffs_Device *dev = in->myDev;
-
-	list_add(&in->hashLink, &dev->objectBucket[bucket].list);
-	dev->objectBucket[bucket].count++;
-
-}
-
-yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number)
-{
-	int bucket = yaffs_HashFunction(number);
-	struct list_head *i;
-	yaffs_Object *in;
-
-	list_for_each(i, &dev->objectBucket[bucket].list) {
-		/* Look if it is in the list */
-		if (i) {
-			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 */
-				if (in->deferedFree)
-					return NULL;
-#endif
-
-				return in;
-			}
-		}
-	}
-
-	return NULL;
-}
-
-yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number,
-				    yaffs_ObjectType type)
-{
-
-	yaffs_Object *theObject;
-	yaffs_Tnode *tn;
-
-	if (number < 0) {
-		number = yaffs_CreateNewObjectNumber(dev);
-	}
-
-	theObject = yaffs_AllocateEmptyObject(dev);
-	if(!theObject)
-		return NULL;
-
-	if(type == YAFFS_OBJECT_TYPE_FILE){
-		tn = yaffs_GetTnode(dev);
-		if(!tn){
-			yaffs_FreeObject(theObject);
-			return NULL;
-		}
-	}
-
-
-
-	if (theObject) {
-		theObject->fake = 0;
-		theObject->renameAllowed = 1;
-		theObject->unlinkAllowed = 1;
-		theObject->objectId = number;
-		yaffs_HashObject(theObject);
-		theObject->variantType = type;
-#ifdef CONFIG_YAFFS_WINCE
-		yfsd_WinFileTimeNow(theObject->win_atime);
-		theObject->win_ctime[0] = theObject->win_mtime[0] =
-		    theObject->win_atime[0];
-		theObject->win_ctime[1] = theObject->win_mtime[1] =
-		    theObject->win_atime[1];
-
-#else
-
-		theObject->yst_atime = theObject->yst_mtime =
-		    theObject->yst_ctime = Y_CURRENT_TIME;
-#endif
-		switch (type) {
-		case YAFFS_OBJECT_TYPE_FILE:
-			theObject->variant.fileVariant.fileSize = 0;
-			theObject->variant.fileVariant.scannedFileSize = 0;
-			theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF;	/* max __u32 */
-			theObject->variant.fileVariant.topLevel = 0;
-			theObject->variant.fileVariant.top = tn;
-			break;
-		case YAFFS_OBJECT_TYPE_DIRECTORY:
-			INIT_LIST_HEAD(&theObject->variant.directoryVariant.
-				       children);
-			break;
-		case YAFFS_OBJECT_TYPE_SYMLINK:
-		case YAFFS_OBJECT_TYPE_HARDLINK:
-		case YAFFS_OBJECT_TYPE_SPECIAL:
-			/* No action required */
-			break;
-		case YAFFS_OBJECT_TYPE_UNKNOWN:
-			/* todo this should not happen */
-			break;
-		}
-	}
-
-	return theObject;
-}
-
-static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev,
-						      int number,
-						      yaffs_ObjectType type)
-{
-	yaffs_Object *theObject = NULL;
-
-	if (number > 0) {
-		theObject = yaffs_FindObjectByNumber(dev, number);
-	}
-
-	if (!theObject) {
-		theObject = yaffs_CreateNewObject(dev, number, type);
-	}
-
-	return theObject;
-
-}
-
-
-static YCHAR *yaffs_CloneString(const YCHAR * str)
-{
-	YCHAR *newStr = NULL;
-
-	if (str && *str) {
-		newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR));
-		if(newStr)
-			yaffs_strcpy(newStr, str);
-	}
-
-	return newStr;
-
-}
-
-/*
- * Mknod (create) a new object.
- * equivalentObject only has meaning for a hard link;
- * 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,
-				       __u32 mode,
-				       __u32 uid,
-				       __u32 gid,
-				       yaffs_Object * equivalentObject,
-				       const YCHAR * aliasString, __u32 rdev)
-{
-	yaffs_Object *in;
-	YCHAR *str;
-
-	yaffs_Device *dev = parent->myDev;
-
-	/* Check if the entry exists. If it does then fail the call since we don't want a dup.*/
-	if (yaffs_FindObjectByName(parent, name)) {
-		return NULL;
-	}
-
-	in = yaffs_CreateNewObject(dev, -1, type);
-
-	if(type == YAFFS_OBJECT_TYPE_SYMLINK){
-		str = yaffs_CloneString(aliasString);
-		if(!str){
-			yaffs_FreeObject(in);
-			return NULL;
-		}
-	}
-
-
-
-	if (in) {
-		in->chunkId = -1;
-		in->valid = 1;
-		in->variantType = type;
-
-		in->yst_mode = mode;
-
-#ifdef CONFIG_YAFFS_WINCE
-		yfsd_WinFileTimeNow(in->win_atime);
-		in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0];
-		in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1];
-
-#else
-		in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME;
-
-		in->yst_rdev = rdev;
-		in->yst_uid = uid;
-		in->yst_gid = gid;
-#endif
-		in->nDataChunks = 0;
-
-		yaffs_SetObjectName(in, name);
-		in->dirty = 1;
-
-		yaffs_AddObjectToDirectory(parent, in);
-
-		in->myDev = parent->myDev;
-
-		switch (type) {
-		case YAFFS_OBJECT_TYPE_SYMLINK:
-			in->variant.symLinkVariant.alias = str;
-			break;
-		case YAFFS_OBJECT_TYPE_HARDLINK:
-			in->variant.hardLinkVariant.equivalentObject =
-			    equivalentObject;
-			in->variant.hardLinkVariant.equivalentObjectId =
-			    equivalentObject->objectId;
-			list_add(&in->hardLinks, &equivalentObject->hardLinks);
-			break;
-		case YAFFS_OBJECT_TYPE_FILE:
-		case YAFFS_OBJECT_TYPE_DIRECTORY:
-		case YAFFS_OBJECT_TYPE_SPECIAL:
-		case YAFFS_OBJECT_TYPE_UNKNOWN:
-			/* do nothing */
-			break;
-		}
-
-		if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) {
-			/* Could not create the object header, fail the creation */
-			yaffs_DestroyObject(in);
-			in = NULL;
-		}
-
-	}
-
-	return in;
-}
-
-yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name,
-			      __u32 mode, __u32 uid, __u32 gid)
-{
-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode,
-				 uid, gid, NULL, NULL, 0);
-}
-
-yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name,
-				   __u32 mode, __u32 uid, __u32 gid)
-{
-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name,
-				 mode, uid, gid, NULL, NULL, 0);
-}
-
-yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name,
-				 __u32 mode, __u32 uid, __u32 gid, __u32 rdev)
-{
-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode,
-				 uid, gid, NULL, NULL, rdev);
-}
-
-yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name,
-				 __u32 mode, __u32 uid, __u32 gid,
-				 const YCHAR * alias)
-{
-	return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode,
-				 uid, gid, NULL, alias, 0);
-}
-
-/* yaffs_Link returns the object id of the equivalent object.*/
-yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name,
-			 yaffs_Object * equivalentObject)
-{
-	/* Get the real object in case we were fed a hard link as an equivalent object */
-	equivalentObject = yaffs_GetEquivalentObject(equivalentObject);
-
-	if (yaffs_MknodObject
-	    (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0,
-	     equivalentObject, NULL, 0)) {
-		return equivalentObject;
-	} else {
-		return NULL;
-	}
-
-}
-
-static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir,
-				  const YCHAR * newName, int force, int shadows)
-{
-	int unlinkOp;
-	int deleteOp;
-
-	yaffs_Object *existingTarget;
-
-	if (newDir == NULL) {
-		newDir = obj->parent;	/* use the old directory */
-	}
-
-	if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("tragendy: yaffs_ChangeObjectName: newDir is not a directory"
-		    TENDSTR)));
-		YBUG();
-	}
-
-	/* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */
-	if (obj->myDev->isYaffs2) {
-		unlinkOp = (newDir == obj->myDev->unlinkedDir);
-	} else {
-		unlinkOp = (newDir == obj->myDev->unlinkedDir
-			    && obj->variantType == YAFFS_OBJECT_TYPE_FILE);
-	}
-
-	deleteOp = (newDir == obj->myDev->deletedDir);
-
-	existingTarget = yaffs_FindObjectByName(newDir, newName);
-
-	/* 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
-	 *   it into a directory.
-	 */
-	if ((unlinkOp ||
-	     deleteOp ||
-	     force ||
-	     (shadows > 0) ||
-	     !existingTarget) &&
-	    newDir->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) {
-		yaffs_SetObjectName(obj, newName);
-		obj->dirty = 1;
-
-		yaffs_AddObjectToDirectory(newDir, obj);
-
-		if (unlinkOp)
-			obj->unlinked = 1;
-
-		/* If it is a deletion then we mark it as a shrink for gc purposes. */
-		if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows)>= 0)
-			return YAFFS_OK;
-	}
-
-	return YAFFS_FAIL;
-}
-
-int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName,
-		       yaffs_Object * newDir, const YCHAR * newName)
-{
-	yaffs_Object *obj;
-	yaffs_Object *existingTarget;
-	int force = 0;
-
-#ifdef CONFIG_YAFFS_CASE_INSENSITIVE
-	/* Special case for case insemsitive systems (eg. WinCE).
-	 * While look-up is case insensitive, the name isn't.
-	 * Therefore we might want to change x.txt to X.txt
-	*/
-	if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) {
-		force = 1;
-	}
-#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)
-	  /* ENAMETOOLONG */
-	  return YAFFS_FAIL;
-
-	if (obj && obj->renameAllowed) {
-
-		/* Now do the handling for an existing target, if there is one */
-
-		existingTarget = yaffs_FindObjectByName(newDir, newName);
-		if (existingTarget &&
-		    existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY &&
-		    !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) {
-			/* Nuke the target first, using shadowing,
-			 * but only if it isn't the same object
-			 */
-			yaffs_ChangeObjectName(obj, newDir, newName, force,
-					       existingTarget->objectId);
-			yaffs_UnlinkObject(existingTarget);
-		}
-
-		return yaffs_ChangeObjectName(obj, newDir, newName, 1, 0);
-	}
-	return YAFFS_FAIL;
-}
-
-/*------------------------- Block Management and Page Allocation ----------------*/
-
-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 */
-	dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo));
-	if(!dev->blockInfo){
-		dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo));
-		dev->blockInfoAlt = 1;
-	}
-	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);
-		if(!dev->chunkBits){
-			dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks);
-			dev->chunkBitsAlt = 1;
-		}
-		else
-			dev->chunkBitsAlt = 0;
-	}
-
-	if (dev->blockInfo && dev->chunkBits) {
-		memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo));
-		memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks);
-		return YAFFS_OK;
-	}
-
-	return YAFFS_FAIL;
-
-}
-
-static void yaffs_DeinitialiseBlocks(yaffs_Device * dev)
-{
-	if(dev->blockInfoAlt && dev->blockInfo)
-		YFREE_ALT(dev->blockInfo);
-	else if(dev->blockInfo)
-		YFREE(dev->blockInfo);
-
-	dev->blockInfoAlt = 0;
-
-	dev->blockInfo = NULL;
-
-	if(dev->chunkBitsAlt && dev->chunkBits)
-		YFREE_ALT(dev->chunkBits);
-	else if(dev->chunkBits)
-		YFREE(dev->chunkBits);
-	dev->chunkBitsAlt = 0;
-	dev->chunkBits = NULL;
-}
-
-static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device * dev,
-					    yaffs_BlockInfo * bi)
-{
-	int i;
-	__u32 seq;
-	yaffs_BlockInfo *b;
-
-	if (!dev->isYaffs2)
-		return 1;	/* disqualification only applies to yaffs2. */
-
-	if (!bi->hasShrinkHeader)
-		return 1;	/* can gc */
-
-	/* Find the oldest dirty sequence number if we don't know it and save it
-	 * so we don't have to keep recomputing it.
-	 */
-	if (!dev->oldestDirtySequence) {
-		seq = dev->sequenceNumber;
-
-		for (i = dev->internalStartBlock; i <= dev->internalEndBlock;
-		     i++) {
-			b = yaffs_GetBlockInfo(dev, i);
-			if (b->blockState == YAFFS_BLOCK_STATE_FULL &&
-			    (b->pagesInUse - b->softDeletions) <
-			    dev->nChunksPerBlock && b->sequenceNumber < seq) {
-				seq = b->sequenceNumber;
-			}
-		}
-		dev->oldestDirtySequence = seq;
-	}
-
-	/* Can't do gc of this block if there are any blocks older than this one that have
-	 * discarded pages.
-	 */
-	return (bi->sequenceNumber <= dev->oldestDirtySequence);
-
-}
-
-/* FindDiretiestBlock is used to select the dirtiest block (or close enough)
- * for garbage collection.
- */
-
-static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev,
-					       int aggressive)
-{
-
-	int b = dev->currentDirtyChecker;
-
-	int i;
-	int iterations;
-	int dirtiest = -1;
-	int pagesInUse = 0;
-	int prioritised=0;
-	yaffs_BlockInfo *bi;
-	int pendingPrioritisedExist = 0;
-
-	/* First let's see if we need to grab a prioritised block */
-	if(dev->hasPendingPrioritisedGCs){
-		for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){
-
-			bi = yaffs_GetBlockInfo(dev, i);
-			//yaffs_VerifyBlock(dev,bi,i);
-
-			if(bi->gcPrioritise) {
-				pendingPrioritisedExist = 1;
-				if(bi->blockState == YAFFS_BLOCK_STATE_FULL &&
-				   yaffs_BlockNotDisqualifiedFromGC(dev, bi)){
-					pagesInUse = (bi->pagesInUse - bi->softDeletions);
-					dirtiest = i;
-					prioritised = 1;
-					aggressive = 1; /* Fool the non-aggressive skip logiv below */
-				}
-			}
-		}
-
-		if(!pendingPrioritisedExist) /* None found, so we can clear this */
-			dev->hasPendingPrioritisedGCs = 0;
-	}
-
-	/* If we're doing aggressive GC then we are happy to take a less-dirty block, and
-	 * search harder.
-	 * else (we're doing a leasurely gc), then we only bother to do this if the
-	 * block has only a few pages in use.
-	 */
-
-	dev->nonAggressiveSkip--;
-
-	if (!aggressive && (dev->nonAggressiveSkip > 0)) {
-		return -1;
-	}
-
-	if(!prioritised)
-		pagesInUse =
-	    		(aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1;
-
-	if (aggressive) {
-		iterations =
-		    dev->internalEndBlock - dev->internalStartBlock + 1;
-	} else {
-		iterations =
-		    dev->internalEndBlock - dev->internalStartBlock + 1;
-		iterations = iterations / 16;
-		if (iterations > 200) {
-			iterations = 200;
-		}
-	}
-
-	for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) {
-		b++;
-		if (b < dev->internalStartBlock || b > dev->internalEndBlock) {
-			b = dev->internalStartBlock;
-		}
-
-		if (b < dev->internalStartBlock || b > dev->internalEndBlock) {
-			T(YAFFS_TRACE_ERROR,
-			  (TSTR("**>> Block %d is not valid" TENDSTR), b));
-			YBUG();
-		}
-
-		bi = yaffs_GetBlockInfo(dev, b);
-
-#if 0
-		if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) {
-			dirtiest = b;
-			pagesInUse = 0;
-		}
-		else
-#endif
-
-		if (bi->blockState == YAFFS_BLOCK_STATE_FULL &&
-		       (bi->pagesInUse - bi->softDeletions) < pagesInUse &&
-		        yaffs_BlockNotDisqualifiedFromGC(dev, bi)) {
-			dirtiest = b;
-			pagesInUse = (bi->pagesInUse - bi->softDeletions);
-		}
-	}
-
-	dev->currentDirtyChecker = b;
-
-	if (dirtiest > 0) {
-		T(YAFFS_TRACE_GC,
-		  (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest,
-		   dev->nChunksPerBlock - pagesInUse,prioritised));
-	}
-
-	dev->oldestDirtySequence = 0;
-
-	if (dirtiest > 0) {
-		dev->nonAggressiveSkip = 4;
-	}
-
-	return dirtiest;
-}
-
-static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo)
-{
-	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo);
-
-	int erasedOk = 0;
-
-	/* 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) {
-		yaffs_InvalidateCheckpoint(dev);
-		erasedOk = yaffs_EraseBlockInNAND(dev, blockNo);
-		if (!erasedOk) {
-			dev->nErasureFailures++;
-			T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-			  (TSTR("**>> Erasure failed %d" TENDSTR), blockNo));
-		}
-	}
-
-	if (erasedOk &&
-	    ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) {
-		int i;
-		for (i = 0; i < dev->nChunksPerBlock; i++) {
-			if (!yaffs_CheckChunkErased
-			    (dev, blockNo * dev->nChunksPerBlock + i)) {
-				T(YAFFS_TRACE_ERROR,
-				  (TSTR
-				   (">>Block %d erasure supposedly OK, but chunk %d not erased"
-				    TENDSTR), blockNo, i));
-			}
-		}
-	}
-
-	if (erasedOk) {
-		/* Clean it up... */
-		bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
-		dev->nErasedBlocks++;
-		bi->pagesInUse = 0;
-		bi->softDeletions = 0;
-		bi->hasShrinkHeader = 0;
-		bi->skipErasedCheck = 1;  /* This is clean, so no need to check */
-		bi->gcPrioritise = 0;
-		yaffs_ClearChunkBits(dev, blockNo);
-
-		T(YAFFS_TRACE_ERASE,
-		  (TSTR("Erased block %d" TENDSTR), blockNo));
-	} else {
-		dev->nFreeChunks -= dev->nChunksPerBlock;	/* We lost a block of free space */
-
-		yaffs_RetireBlock(dev, blockNo);
-		T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-		  (TSTR("**>> Block %d retired" TENDSTR), blockNo));
-	}
-}
-
-static int yaffs_FindBlockForAllocation(yaffs_Device * dev)
-{
-	int i;
-
-	yaffs_BlockInfo *bi;
-
-	if (dev->nErasedBlocks < 1) {
-		/* Hoosterman we've got a problem.
-		 * Can't get space to gc
-		 */
-		T(YAFFS_TRACE_ERROR,
-		  (TSTR("yaffs tragedy: no more eraased blocks" TENDSTR)));
-
-		return -1;
-	}
-
-	/* Find an empty block. */
-
-	for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
-		dev->allocationBlockFinder++;
-		if (dev->allocationBlockFinder < dev->internalStartBlock
-		    || dev->allocationBlockFinder > dev->internalEndBlock) {
-			dev->allocationBlockFinder = dev->internalStartBlock;
-		}
-
-		bi = yaffs_GetBlockInfo(dev, dev->allocationBlockFinder);
-
-		if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) {
-			bi->blockState = YAFFS_BLOCK_STATE_ALLOCATING;
-			dev->sequenceNumber++;
-			bi->sequenceNumber = dev->sequenceNumber;
-			dev->nErasedBlocks--;
-			T(YAFFS_TRACE_ALLOCATE,
-			  (TSTR("Allocated block %d, seq  %d, %d left" TENDSTR),
-			   dev->allocationBlockFinder, dev->sequenceNumber,
-			   dev->nErasedBlocks));
-			return dev->allocationBlockFinder;
-		}
-	}
-
-	T(YAFFS_TRACE_ALWAYS,
-	  (TSTR
-	   ("yaffs tragedy: no more eraased blocks, but there should have been %d"
-	    TENDSTR), dev->nErasedBlocks));
-
-	return -1;
-}
-
-
-// Check if there's space to allocate...
-// Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()?
-static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev)
-{
-	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);
-}
-
-static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr)
-{
-	int retVal;
-	yaffs_BlockInfo *bi;
-
-	if (dev->allocationBlock < 0) {
-		/* Get next block to allocate off */
-		dev->allocationBlock = yaffs_FindBlockForAllocation(dev);
-		dev->allocationPage = 0;
-	}
-
-	if (!useReserve && !yaffs_CheckSpaceForAllocation(dev)) {
-		/* Not enough space to allocate unless we're allowed to use the reserve. */
-		return -1;
-	}
-
-	if (dev->nErasedBlocks < dev->nReservedBlocks
-	    && dev->allocationPage == 0) {
-		T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR)));
-	}
-
-	/* Next page please.... */
-	if (dev->allocationBlock >= 0) {
-		bi = yaffs_GetBlockInfo(dev, dev->allocationBlock);
-
-		retVal = (dev->allocationBlock * dev->nChunksPerBlock) +
-		    dev->allocationPage;
-		bi->pagesInUse++;
-		yaffs_SetChunkBit(dev, dev->allocationBlock,
-				  dev->allocationPage);
-
-		dev->allocationPage++;
-
-		dev->nFreeChunks--;
-
-		/* If the block is full set the state to full */
-		if (dev->allocationPage >= dev->nChunksPerBlock) {
-			bi->blockState = YAFFS_BLOCK_STATE_FULL;
-			dev->allocationBlock = -1;
-		}
-
-		if(blockUsedPtr)
-			*blockUsedPtr = bi;
-
-		return retVal;
-	}
-
-	T(YAFFS_TRACE_ERROR,
-	  (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR)));
-
-	return -1;
-}
-
-static int yaffs_GetErasedChunks(yaffs_Device * dev)
-{
-	int n;
-
-	n = dev->nErasedBlocks * dev->nChunksPerBlock;
-
-	if (dev->allocationBlock > 0) {
-		n += (dev->nChunksPerBlock - dev->allocationPage);
-	}
-
-	return n;
-
-}
-
-static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block)
-{
-	int oldChunk;
-	int newChunk;
-	int chunkInBlock;
-	int markNAND;
-	int retVal = YAFFS_OK;
-	int cleanups = 0;
-	int i;
-	int isCheckpointBlock;
-	int matchingChunk;
-
-	int chunksBefore = yaffs_GetErasedChunks(dev);
-	int chunksAfter;
-
-	yaffs_ExtendedTags tags;
-
-	yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, block);
-
-	yaffs_Object *object;
-
-	isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT);
-
-	bi->blockState = YAFFS_BLOCK_STATE_COLLECTING;
-
-	T(YAFFS_TRACE_TRACING,
-	  (TSTR("Collecting block %d, in use %d, shrink %d, " TENDSTR), block,
-	   bi->pagesInUse, bi->hasShrinkHeader));
-
-	/*yaffs_VerifyFreeChunks(dev); */
-
-	bi->hasShrinkHeader = 0;	/* clear the flag so that the block can erase */
-
-	/* Take off the number of soft deleted entries because
-	 * they're going to get really deleted during GC.
-	 */
-	dev->nFreeChunks -= bi->softDeletions;
-
-	dev->isDoingGC = 1;
-
-	if (isCheckpointBlock ||
-	    !yaffs_StillSomeChunkBits(dev, block)) {
-		T(YAFFS_TRACE_TRACING,
-		  (TSTR
-		   ("Collecting block %d that has no chunks in use" TENDSTR),
-		   block));
-		yaffs_BlockBecameDirty(dev, block);
-	} else {
-
-		__u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__);
-
-		yaffs_VerifyBlock(dev,bi,block);
-
-		for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock;
-		     chunkInBlock < dev->nChunksPerBlock
-		     && yaffs_StillSomeChunkBits(dev, block);
-		     chunkInBlock++, oldChunk++) {
-			if (yaffs_CheckChunkBit(dev, block, chunkInBlock)) {
-
-				/* This page is in use and might need to be copied off */
-
-				markNAND = 1;
-
-				yaffs_InitialiseTags(&tags);
-
-				yaffs_ReadChunkWithTagsFromNAND(dev, oldChunk,
-								buffer, &tags);
-
-				object =
-				    yaffs_FindObjectByNumber(dev,
-							     tags.objectId);
-
-				T(YAFFS_TRACE_GC_DETAIL,
-				  (TSTR
-				   ("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;
-					else if(object->softDeleted)
-						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) {
-					T(YAFFS_TRACE_ERROR,
-					  (TSTR
-					   ("page %d in gc has no object: %d %d %d "
-					    TENDSTR), oldChunk,
-					    tags.objectId, tags.chunkId, tags.byteCount));
-				}
-
-				if (object && object->deleted
-				    && 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
-					 * fix up the object.
-					 */
-
-					object->nDataChunks--;
-
-					if (object->nDataChunks <= 0) {
-						/* remeber to clean up the object */
-						dev->gcCleanupList[cleanups] =
-						    tags.objectId;
-						cleanups++;
-					}
-					markNAND = 0;
-				} else if (0
-					   /* Todo object && object->deleted && object->nDataChunks == 0 */
-					   ) {
-					/* Deleted object header with no data chunks.
-					 * Can be discarded and the file deleted.
-					 */
-					object->chunkId = 0;
-					yaffs_FreeTnode(object->myDev,
-							object->variant.
-							fileVariant.top);
-					object->variant.fileVariant.top = NULL;
-					yaffs_DoGenericObjectDeletion(object);
-
-				} else if (object) {
-					/* It's either a data chunk in a live file or
-					 * an ObjectHeader, so we're interested in it.
-					 * NB Need to keep the ObjectHeaders of deleted files
-					 * until the whole file has been deleted off
-					 */
-					tags.serialNumber++;
-
-					dev->nGCCopies++;
-
-					if (tags.chunkId == 0) {
-						/* It is an object Id,
-						 * We need to nuke the shrinkheader flags first
-						 * We no longer want the shrinkHeader flag since its work is done
-						 * and if it is left in place it will mess up scanning.
-						 * Also, clear out any shadowing stuff
-						 */
-
-						yaffs_ObjectHeader *oh;
-						oh = (yaffs_ObjectHeader *)buffer;
-						oh->isShrink = 0;
-						oh->shadowsObject = -1;
-						tags.extraShadows = 0;
-						tags.extraIsShrinkHeader = 0;
-
-						yaffs_VerifyObjectHeader(object,oh,&tags,1);
-					}
-
-					newChunk =
-					    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &tags, 1);
-
-					if (newChunk < 0) {
-						retVal = YAFFS_FAIL;
-					} else {
-
-						/* Ok, now fix up the Tnodes etc. */
-
-						if (tags.chunkId == 0) {
-							/* It's a header */
-							object->chunkId =  newChunk;
-							object->serial =   tags.serialNumber;
-						} else {
-							/* It's a data chunk */
-							yaffs_PutChunkIntoFile
-							    (object,
-							     tags.chunkId,
-							     newChunk, 0);
-						}
-					}
-				}
-
-				yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__);
-
-			}
-		}
-
-		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
-
-
-		/* Do any required cleanups */
-		for (i = 0; i < cleanups; i++) {
-			/* Time to delete the file too */
-			object =
-			    yaffs_FindObjectByNumber(dev,
-						     dev->gcCleanupList[i]);
-			if (object) {
-				yaffs_FreeTnode(dev,
-						object->variant.fileVariant.
-						top);
-				object->variant.fileVariant.top = NULL;
-				T(YAFFS_TRACE_GC,
-				  (TSTR
-				   ("yaffs: About to finally delete object %d"
-				    TENDSTR), object->objectId));
-				yaffs_DoGenericObjectDeletion(object);
-				object->myDev->nDeletedFiles--;
-			}
-
-		}
-
-	}
-
-	yaffs_VerifyCollectedBlock(dev,bi,block);
-
-	if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) {
-		T(YAFFS_TRACE_GC,
-		  (TSTR
-		   ("gc did not increase free chunks before %d after %d"
-		    TENDSTR), chunksBefore, chunksAfter));
-	}
-
-	dev->isDoingGC = 0;
-
-	return YAFFS_OK;
-}
-
-/* New garbage collector
- * If we're very low on erased blocks then we do aggressive garbage collection
- * otherwise we do "leasurely" garbage collection.
- * Aggressive gc looks further (whole array) and will accept less dirty blocks.
- * Passive gc only inspects smaller areas and will only accept more dirty blocks.
- *
- * The idea is to help clear out space in a more spread-out manner.
- * Dunno if it really does anything useful.
- */
-static int yaffs_CheckGarbageCollection(yaffs_Device * dev)
-{
-	int block;
-	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;
-
-		if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) {
-			/* We need a block soon...*/
-			aggressive = 1;
-		} else {
-			/* We're in no hurry */
-			aggressive = 0;
-		}
-
-		block = yaffs_FindBlockForGarbageCollection(dev, aggressive);
-
-		if (block > 0) {
-			dev->garbageCollections++;
-			if (!aggressive) {
-				dev->passiveGarbageCollections++;
-			}
-
-			T(YAFFS_TRACE_GC,
-			  (TSTR
-			   ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR),
-			   dev->nErasedBlocks, aggressive));
-
-			gcOk = yaffs_GarbageCollectBlock(dev, block);
-		}
-
-		if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) {
-			T(YAFFS_TRACE_GC,
-			  (TSTR
-			   ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d"
-			    TENDSTR), dev->nErasedBlocks, maxTries, block));
-		}
-	} while ((dev->nErasedBlocks < dev->nReservedBlocks) && (block > 0)
-		 && (maxTries < 2));
-
-	return aggressive ? gcOk : YAFFS_OK;
-}
-
-/*-------------------------  TAGS --------------------------------*/
-
-static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId,
-			   int chunkInObject)
-{
-	return (tags->chunkId == chunkInObject &&
-		tags->objectId == objectId && !tags->chunkDeleted) ? 1 : 0;
-
-}
-
-
-/*-------------------- Data file manipulation -----------------*/
-
-static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode,
-				 yaffs_ExtendedTags * tags)
-{
-	/*Get the Tnode, then get the level 0 offset chunk offset */
-	yaffs_Tnode *tn;
-	int theChunk = -1;
-	yaffs_ExtendedTags localTags;
-	int retVal = -1;
-
-	yaffs_Device *dev = in->myDev;
-
-	if (!tags) {
-		/* Passed a NULL, so use our own tags space */
-		tags = &localTags;
-	}
-
-	tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
-
-	if (tn) {
-		theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
-
-		retVal =
-		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
-					   chunkInInode);
-	}
-	return retVal;
-}
-
-static int yaffs_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode,
-					  yaffs_ExtendedTags * tags)
-{
-	/* Get the Tnode, then get the level 0 offset chunk offset */
-	yaffs_Tnode *tn;
-	int theChunk = -1;
-	yaffs_ExtendedTags localTags;
-
-	yaffs_Device *dev = in->myDev;
-	int retVal = -1;
-
-	if (!tags) {
-		/* Passed a NULL, so use our own tags space */
-		tags = &localTags;
-	}
-
-	tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode);
-
-	if (tn) {
-
-		theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode);
-
-		retVal =
-		    yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId,
-					   chunkInInode);
-
-		/* Delete the entry in the filestructure (if found) */
-		if (retVal != -1) {
-			yaffs_PutLevel0Tnode(dev,tn,chunkInInode,0);
-		}
-	} else {
-		/*T(("No level 0 found for %d\n", chunkInInode)); */
-	}
-
-	if (retVal == -1) {
-		/* T(("Could not find %d to delete\n",chunkInInode)); */
-	}
-	return retVal;
-}
-
-#ifdef YAFFS_PARANOID
-
-static int yaffs_CheckFileSanity(yaffs_Object * in)
-{
-	int chunk;
-	int nChunks;
-	int fSize;
-	int failed = 0;
-	int objId;
-	yaffs_Tnode *tn;
-	yaffs_Tags localTags;
-	yaffs_Tags *tags = &localTags;
-	int theChunk;
-	int chunkDeleted;
-
-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
-		/* T(("Object not a file\n")); */
-		return YAFFS_FAIL;
-	}
-
-	objId = in->objectId;
-	fSize = in->variant.fileVariant.fileSize;
-	nChunks =
-	    (fSize + in->myDev->nDataBytesPerChunk - 1) / in->myDev->nDataBytesPerChunk;
-
-	for (chunk = 1; chunk <= nChunks; chunk++) {
-		tn = yaffs_FindLevel0Tnode(in->myDev, &in->variant.fileVariant,
-					   chunk);
-
-		if (tn) {
-
-			theChunk = yaffs_GetChunkGroupBase(dev,tn,chunk);
-
-			if (yaffs_CheckChunkBits
-			    (dev, theChunk / dev->nChunksPerBlock,
-			     theChunk % dev->nChunksPerBlock)) {
-
-				yaffs_ReadChunkTagsFromNAND(in->myDev, theChunk,
-							    tags,
-							    &chunkDeleted);
-				if (yaffs_TagsMatch
-				    (tags, in->objectId, chunk, chunkDeleted)) {
-					/* found it; */
-
-				}
-			} else {
-
-				failed = 1;
-			}
-
-		} else {
-			/* T(("No level 0 found for %d\n", chunk)); */
-		}
-	}
-
-	return failed ? YAFFS_FAIL : YAFFS_OK;
-}
-
-#endif
-
-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;
-	 * for backward scanning inScan is < 0
-	 */
-
-	yaffs_Tnode *tn;
-	yaffs_Device *dev = in->myDev;
-	int existingChunk;
-	yaffs_ExtendedTags existingTags;
-	yaffs_ExtendedTags newTags;
-	unsigned existingSerial, newSerial;
-
-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
-		/* Just ignore an attempt at putting a chunk into a non-file during scanning
-		 * If it is not during Scanning then something went wrong!
-		 */
-		if (!inScan) {
-			T(YAFFS_TRACE_ERROR,
-			  (TSTR
-			   ("yaffs tragedy:attempt to put data chunk into a non-file"
-			    TENDSTR)));
-			YBUG();
-		}
-
-		yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
-		return YAFFS_OK;
-	}
-
-	tn = yaffs_AddOrFindLevel0Tnode(dev,
-					&in->variant.fileVariant,
-					chunkInInode,
-					NULL);
-	if (!tn) {
-		return YAFFS_FAIL;
-	}
-
-	existingChunk = yaffs_GetChunkGroupBase(dev,tn,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
-		 * happen when the power fails during a write, then only one
-		 * chunk should ever be affected.
-		 *
-		 * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO
-		 * Update: For backward scanning we don't need to re-read tags so this is quite cheap.
-		 */
-
-		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.
-			 *
-			 * We have a duplicate now we need to decide which one to use:
-			 *
-			 * Backwards scanning YAFFS2: The old one is what we use, dump the new one.
-			 * Forward scanning YAFFS2: The new one is what we use, dump the old one.
-			 * YAFFS1: Get both sets of tags and compare serial numbers.
-			 */
-
-			if (inScan > 0) {
-				/* Only do this for forward scanning */
-				yaffs_ReadChunkWithTagsFromNAND(dev,
-								chunkInNAND,
-								NULL, &newTags);
-
-				/* Do a proper find */
-				existingChunk =
-				    yaffs_FindChunkInFile(in, chunkInInode,
-							  &existingTags);
-			}
-
-			if (existingChunk <= 0) {
-				/*Hoosterman - how did this happen? */
-
-				T(YAFFS_TRACE_ERROR,
-				  (TSTR
-				   ("yaffs tragedy: existing chunk < 0 in scan"
-				    TENDSTR)));
-
-			}
-
-			/* NB The deleted flags should be false, otherwise the chunks will
-			 * not be loaded during a scan
-			 */
-
-			newSerial = newTags.serialNumber;
-			existingSerial = existingTags.serialNumber;
-
-			if ((inScan > 0) &&
-			    (in->myDev->isYaffs2 ||
-			     existingChunk <= 0 ||
-			     ((existingSerial + 1) & 3) == newSerial)) {
-				/* Forward scanning.
-				 * Use new
-				 * Delete the old one and drop through to update the tnode
-				 */
-				yaffs_DeleteChunk(dev, existingChunk, 1,
-						  __LINE__);
-			} else {
-				/* Backward scanning or we want to use the existing one
-				 * Use existing.
-				 * Delete the new one and return early so that the tnode isn't changed
-				 */
-				yaffs_DeleteChunk(dev, chunkInNAND, 1,
-						  __LINE__);
-				return YAFFS_OK;
-			}
-		}
-
-	}
-
-	if (existingChunk == 0) {
-		in->nDataChunks++;
-	}
-
-	yaffs_PutLevel0Tnode(dev,tn,chunkInInode,chunkInNAND);
-
-	return YAFFS_OK;
-}
-
-static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode,
-					 __u8 * buffer)
-{
-	int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL);
-
-	if (chunkInNAND >= 0) {
-		return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND,
-						       buffer,NULL);
-	} else {
-		T(YAFFS_TRACE_NANDACCESS,
-		  (TSTR("Chunk %d not found zero instead" TENDSTR),
-		   chunkInNAND));
-		/* get sane (zero) data if you read a hole */
-		memset(buffer, 0, in->myDev->nDataBytesPerChunk);
-		return 0;
-	}
-
-}
-
-void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn)
-{
-	int block;
-	int page;
-	yaffs_ExtendedTags tags;
-	yaffs_BlockInfo *bi;
-
-	if (chunkId <= 0)
-		return;
-
-
-	dev->nDeletions++;
-	block = chunkId / dev->nChunksPerBlock;
-	page = chunkId % dev->nChunksPerBlock;
-
-
-	if(!yaffs_CheckChunkBit(dev,block,page))
-		T(YAFFS_TRACE_VERIFY,
-		 	(TSTR("Deleting invalid chunk %d"TENDSTR),
-		 	 chunkId));
-
-	bi = yaffs_GetBlockInfo(dev, block);
-
-	T(YAFFS_TRACE_DELETION,
-	  (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunkId));
-
-	if (markNAND &&
-	    bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && !dev->isYaffs2) {
-
-		yaffs_InitialiseTags(&tags);
-
-		tags.chunkDeleted = 1;
-
-		yaffs_WriteChunkWithTagsToNAND(dev, chunkId, NULL, &tags);
-		yaffs_HandleUpdateChunk(dev, chunkId, &tags);
-	} else {
-		dev->nUnmarkedDeletions++;
-	}
-
-	/* Pull out of the management area.
-	 * If the whole block became dirty, this will kick off an erasure.
-	 */
-	if (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING ||
-	    bi->blockState == YAFFS_BLOCK_STATE_FULL ||
-	    bi->blockState == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
-	    bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) {
-		dev->nFreeChunks++;
-
-		yaffs_ClearChunkBit(dev, block, page);
-
-		bi->pagesInUse--;
-
-		if (bi->pagesInUse == 0 &&
-		    !bi->hasShrinkHeader &&
-		    bi->blockState != YAFFS_BLOCK_STATE_ALLOCATING &&
-		    bi->blockState != YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-			yaffs_BlockBecameDirty(dev, block);
-		}
-
-	} else {
-		/* T(("Bad news deleting chunk %d\n",chunkId)); */
-	}
-
-}
-
-static int yaffs_WriteChunkDataToObject(yaffs_Object * in, int chunkInInode,
-					const __u8 * buffer, int nBytes,
-					int useReserve)
-{
-	/* Find old chunk Need to do this to get serial number
-	 * Write new one and patch into tree.
-	 * Invalidate old tags.
-	 */
-
-	int prevChunkId;
-	yaffs_ExtendedTags prevTags;
-
-	int newChunkId;
-	yaffs_ExtendedTags newTags;
-
-	yaffs_Device *dev = in->myDev;
-
-	yaffs_CheckGarbageCollection(dev);
-
-	/* Get the previous chunk at this location in the file if it exists */
-	prevChunkId = yaffs_FindChunkInFile(in, chunkInInode, &prevTags);
-
-	/* Set up new tags */
-	yaffs_InitialiseTags(&newTags);
-
-	newTags.chunkId = chunkInInode;
-	newTags.objectId = in->objectId;
-	newTags.serialNumber =
-	    (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1;
-	newTags.byteCount = nBytes;
-
-	newChunkId =
-	    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
-					      useReserve);
-
-	if (newChunkId >= 0) {
-		yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0);
-
-		if (prevChunkId >= 0) {
-			yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__);
-
-		}
-
-		yaffs_CheckFileSanity(in);
-	}
-	return newChunkId;
-
-}
-
-/* UpdateObjectHeader updates the header on NAND for an object.
- * If name is not NULL, then that new name is used.
- */
-int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force,
-			     int isShrink, int shadows)
-{
-
-	yaffs_BlockInfo *bi;
-
-	yaffs_Device *dev = in->myDev;
-
-	int prevChunkId;
-	int retVal = 0;
-	int result = 0;
-
-	int newChunkId;
-	yaffs_ExtendedTags newTags;
-	yaffs_ExtendedTags oldTags;
-
-	__u8 *buffer = NULL;
-	YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1];
-
-	yaffs_ObjectHeader *oh = NULL;
-
-	yaffs_strcpy(oldName,"silly old name");
-
-	if (!in->fake || force) {
-
-		yaffs_CheckGarbageCollection(dev);
-		yaffs_CheckObjectDetailsLoaded(in);
-
-		buffer = yaffs_GetTempBuffer(in->myDev, __LINE__);
-		oh = (yaffs_ObjectHeader *) buffer;
-
-		prevChunkId = in->chunkId;
-
-		if (prevChunkId >= 0) {
-			result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId,
-							buffer, &oldTags);
-
-			yaffs_VerifyObjectHeader(in,oh,&oldTags,0);
-
-			memcpy(oldName, oh->name, sizeof(oh->name));
-		}
-
-		memset(buffer, 0xFF, dev->nDataBytesPerChunk);
-
-		oh->type = in->variantType;
-		oh->yst_mode = in->yst_mode;
-		oh->shadowsObject = shadows;
-
-#ifdef CONFIG_YAFFS_WINCE
-		oh->win_atime[0] = in->win_atime[0];
-		oh->win_ctime[0] = in->win_ctime[0];
-		oh->win_mtime[0] = in->win_mtime[0];
-		oh->win_atime[1] = in->win_atime[1];
-		oh->win_ctime[1] = in->win_ctime[1];
-		oh->win_mtime[1] = in->win_mtime[1];
-#else
-		oh->yst_uid = in->yst_uid;
-		oh->yst_gid = in->yst_gid;
-		oh->yst_atime = in->yst_atime;
-		oh->yst_mtime = in->yst_mtime;
-		oh->yst_ctime = in->yst_ctime;
-		oh->yst_rdev = in->yst_rdev;
-#endif
-		if (in->parent) {
-			oh->parentObjectId = in->parent->objectId;
-		} else {
-			oh->parentObjectId = 0;
-		}
-
-		if (name && *name) {
-			memset(oh->name, 0, sizeof(oh->name));
-			yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH);
-		} else if (prevChunkId>=0) {
-			memcpy(oh->name, oldName, sizeof(oh->name));
-		} else {
-			memset(oh->name, 0, sizeof(oh->name));
-		}
-
-		oh->isShrink = isShrink;
-
-		switch (in->variantType) {
-		case YAFFS_OBJECT_TYPE_UNKNOWN:
-			/* Should not happen */
-			break;
-		case YAFFS_OBJECT_TYPE_FILE:
-			oh->fileSize =
-			    (oh->parentObjectId == YAFFS_OBJECTID_DELETED
-			     || oh->parentObjectId ==
-			     YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant.
-			    fileVariant.fileSize;
-			break;
-		case YAFFS_OBJECT_TYPE_HARDLINK:
-			oh->equivalentObjectId =
-			    in->variant.hardLinkVariant.equivalentObjectId;
-			break;
-		case YAFFS_OBJECT_TYPE_SPECIAL:
-			/* Do nothing */
-			break;
-		case YAFFS_OBJECT_TYPE_DIRECTORY:
-			/* Do nothing */
-			break;
-		case YAFFS_OBJECT_TYPE_SYMLINK:
-			yaffs_strncpy(oh->alias,
-				      in->variant.symLinkVariant.alias,
-				      YAFFS_MAX_ALIAS_LENGTH);
-			oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0;
-			break;
-		}
-
-		/* Tags */
-		yaffs_InitialiseTags(&newTags);
-		in->serial++;
-		newTags.chunkId = 0;
-		newTags.objectId = in->objectId;
-		newTags.serialNumber = in->serial;
-
-		/* Add extra info for file header */
-
-		newTags.extraHeaderInfoAvailable = 1;
-		newTags.extraParentObjectId = oh->parentObjectId;
-		newTags.extraFileLength = oh->fileSize;
-		newTags.extraIsShrinkHeader = oh->isShrink;
-		newTags.extraEquivalentObjectId = oh->equivalentObjectId;
-		newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0;
-		newTags.extraObjectType = in->variantType;
-
-		yaffs_VerifyObjectHeader(in,oh,&newTags,1);
-
-		/* Create new chunk in NAND */
-		newChunkId =
-		    yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags,
-						      (prevChunkId >= 0) ? 1 : 0);
-
-		if (newChunkId >= 0) {
-
-			in->chunkId = newChunkId;
-
-			if (prevChunkId >= 0) {
-				yaffs_DeleteChunk(dev, prevChunkId, 1,
-						  __LINE__);
-			}
-
-			if(!yaffs_ObjectHasCachedWriteData(in))
-				in->dirty = 0;
-
-			/* If this was a shrink, then mark the block that the chunk lives on */
-			if (isShrink) {
-				bi = yaffs_GetBlockInfo(in->myDev,
-							newChunkId /in->myDev->	nChunksPerBlock);
-				bi->hasShrinkHeader = 1;
-			}
-
-		}
-
-		retVal = newChunkId;
-
-	}
-
-	if (buffer)
-		yaffs_ReleaseTempBuffer(dev, buffer, __LINE__);
-
-	return retVal;
-}
-
-/*------------------------ 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
- *   sequential writes. eg. scanning/writing a jpeg file.
- *   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
- *   buffering.
- *
- *   There are a limited number (~10) of cache chunks per device so that we don't
- *   need a very intelligent search.
- */
-
-static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj)
-{
-	yaffs_Device *dev = obj->myDev;
-	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;
-}
-
-
-static void yaffs_FlushFilesChunkCache(yaffs_Object * obj)
-{
-	yaffs_Device *dev = obj->myDev;
-	int lowest = -99;	/* Stop compiler whining. */
-	int i;
-	yaffs_ChunkCache *cache;
-	int chunkWritten = 0;
-	int nCaches = obj->myDev->nShortOpCaches;
-
-	if (nCaches > 0) {
-		do {
-			cache = NULL;
-
-			/* Find the dirty cache for this object with the lowest chunk id. */
-			for (i = 0; i < nCaches; i++) {
-				if (dev->srCache[i].object == obj &&
-				    dev->srCache[i].dirty) {
-					if (!cache
-					    || dev->srCache[i].chunkId <
-					    lowest) {
-						cache = &dev->srCache[i];
-						lowest = cache->chunkId;
-					}
-				}
-			}
-
-			if (cache && !cache->locked) {
-				/* Write it out and free it up */
-
-				chunkWritten =
-				    yaffs_WriteChunkDataToObject(cache->object,
-								 cache->chunkId,
-								 cache->data,
-								 cache->nBytes,
-								 1);
-				cache->dirty = 0;
-				cache->object = NULL;
-			}
-
-		} while (cache && chunkWritten > 0);
-
-		if (cache) {
-			/* Hoosterman, disk full while writing cache out. */
-			T(YAFFS_TRACE_ERROR,
-			  (TSTR("yaffs tragedy: no space during cache write" TENDSTR)));
-
-		}
-	}
-
-}
-
-/*yaffs_FlushEntireDeviceCache(dev)
- *
- *
- */
-
-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.
-	 */
-	do {
-		obj = NULL;
-		for( i = 0; i < nCaches && !obj; i++) {
-			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.
- * Then look for the least recently used non-dirty one.
- * Then look for the least recently used dirty one...., flush and look again.
- */
-static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev)
-{
-	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;
-	}
-
-}
-
-static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev)
-{
-	yaffs_ChunkCache *cache;
-	yaffs_Object *theObj;
-	int usage;
-	int i;
-	int pushout;
-
-	if (dev->nShortOpCaches > 0) {
-		/* Try find a non-dirty one... */
-
-		cache = yaffs_GrabChunkCacheWorker(dev);
-
-		if (!cache) {
-			/* They were all dirty, find the last recently used object and flush
-			 * its cache, then  find again.
-			 * NB what's here is not very accurate, we actually flush the object
-			 * the last recently used page.
-			 */
-
-			/* With locking we can't assume we can use entry zero */
-
-			theObj = NULL;
-			usage = -1;
-			cache = NULL;
-			pushout = -1;
-
-			for (i = 0; i < dev->nShortOpCaches; i++) {
-				if (dev->srCache[i].object &&
-				    !dev->srCache[i].locked &&
-				    (dev->srCache[i].lastUse < usage || !cache))
-				{
-					usage = dev->srCache[i].lastUse;
-					theObj = dev->srCache[i].object;
-					cache = &dev->srCache[i];
-					pushout = i;
-				}
-			}
-
-			if (!cache || cache->dirty) {
-				/* Flush and try again */
-				yaffs_FlushFilesChunkCache(theObj);
-				cache = yaffs_GrabChunkCacheWorker(dev);
-			}
-
-		}
-		return cache;
-	} else
-		return NULL;
-
-}
-
-/* Find a cached chunk */
-static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object * obj,
-					      int chunkId)
-{
-	yaffs_Device *dev = obj->myDev;
-	int i;
-	if (dev->nShortOpCaches > 0) {
-		for (i = 0; i < dev->nShortOpCaches; i++) {
-			if (dev->srCache[i].object == obj &&
-			    dev->srCache[i].chunkId == chunkId) {
-				dev->cacheHits++;
-
-				return &dev->srCache[i];
-			}
-		}
-	}
-	return NULL;
-}
-
-/* Mark the chunk for the least recently used algorithym */
-static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache,
-				int isAWrite)
-{
-
-	if (dev->nShortOpCaches > 0) {
-		if (dev->srLastUse < 0 || dev->srLastUse > 100000000) {
-			/* Reset the cache usages */
-			int i;
-			for (i = 1; i < dev->nShortOpCaches; i++) {
-				dev->srCache[i].lastUse = 0;
-			}
-			dev->srLastUse = 0;
-		}
-
-		dev->srLastUse++;
-
-		cache->lastUse = dev->srLastUse;
-
-		if (isAWrite) {
-			cache->dirty = 1;
-		}
-	}
-}
-
-/* Invalidate a single cache page.
- * Do this when a whole page gets written,
- * ie the short cache for this page is no longer valid.
- */
-static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId)
-{
-	if (object->myDev->nShortOpCaches > 0) {
-		yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId);
-
-		if (cache) {
-			cache->object = NULL;
-		}
-	}
-}
-
-/* Invalidate all the cache pages associated with this object
- * Do this whenever ther file is deleted or resized.
- */
-static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in)
-{
-	int i;
-	yaffs_Device *dev = in->myDev;
-
-	if (dev->nShortOpCaches > 0) {
-		/* Invalidate it. */
-		for (i = 0; i < dev->nShortOpCaches; i++) {
-			if (dev->srCache[i].object == in) {
-				dev->srCache[i].object = NULL;
-			}
-		}
-	}
-}
-
-/*--------------------- Checkpointing --------------------*/
-
-
-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;
-}
-
-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) &&
-		     (cp.version == YAFFS_CHECKPOINT_VERSION) &&
-		     (cp.head == ((head) ? 1 : 0));
-	return ok ? 1 : 0;
-}
-
-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,
-					   yaffs_CheckpointDevice *cp)
-{
-	dev->nErasedBlocks = cp->nErasedBlocks;
-	dev->allocationBlock = cp->allocationBlock;
-	dev->allocationPage = cp->allocationPage;
-	dev->nFreeChunks = cp->nFreeChunks;
-
-	dev->nDeletedFiles = cp->nDeletedFiles;
-	dev->nUnlinkedFiles = cp->nUnlinkedFiles;
-	dev->nBackgroundDeletions = cp->nBackgroundDeletions;
-	dev->sequenceNumber = cp->sequenceNumber;
-	dev->oldestDirtySequence = cp->oldestDirtySequence;
-}
-
-
-static int yaffs_WriteCheckpointDevice(yaffs_Device *dev)
-{
-	yaffs_CheckpointDevice cp;
-	__u32 nBytes;
-	__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 */
-	if(ok) {
-		nBytes = nBlocks * dev->chunkBitmapStride;
-		ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes);
-	}
-	return	 ok ? 1 : 0;
-
-}
-
-static int yaffs_ReadCheckpointDevice(yaffs_Device *dev)
-{
-	yaffs_CheckpointDevice cp;
-	__u32 nBytes;
-	__u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1);
-
-	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;
-}
-
-static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp,
-					   yaffs_Object *obj)
-{
-
-	cp->objectId = obj->objectId;
-	cp->parentId = (obj->parent) ? obj->parent->objectId : 0;
-	cp->chunkId = obj->chunkId;
-	cp->variantType = obj->variantType;
-	cp->deleted = obj->deleted;
-	cp->softDeleted = obj->softDeleted;
-	cp->unlinked = obj->unlinked;
-	cp->fake = obj->fake;
-	cp->renameAllowed = obj->renameAllowed;
-	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)
-		cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId;
-}
-
-static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointObject *cp)
-{
-
-	yaffs_Object *parent;
-
-	obj->objectId = cp->objectId;
-
-	if(cp->parentId)
-		parent = yaffs_FindOrCreateObjectByNumber(
-					obj->myDev,
-					cp->parentId,
-					YAFFS_OBJECT_TYPE_DIRECTORY);
-	else
-		parent = NULL;
-
-	if(parent)
-		yaffs_AddObjectToDirectory(parent, obj);
-
-	obj->chunkId = cp->chunkId;
-	obj->variantType = cp->variantType;
-	obj->deleted = cp->deleted;
-	obj->softDeleted = cp->softDeleted;
-	obj->unlinked = cp->unlinked;
-	obj->fake = cp->fake;
-	obj->renameAllowed = cp->renameAllowed;
-	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;
-}
-
-
-
-static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn,
-				  	__u32 level, int chunkOffset)
-{
-	int i;
-	yaffs_Device *dev = in->myDev;
-	int ok = 1;
-	int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8;
-
-	if (tn) {
-		if (level > 0) {
-
-			for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){
-				if (tn->internal[i]) {
-					ok = yaffs_CheckpointTnodeWorker(in,
-							tn->internal[i],
-							level - 1,
-							(chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i);
-				}
-			}
-		} else if (level == 0) {
-			__u32 baseOffset = chunkOffset <<  YAFFS_TNODES_LEVEL0_BITS;
-			/* printf("write tnode at %d\n",baseOffset); */
-			ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset));
-			if(ok)
-				ok = (yaffs_CheckpointWrite(dev,tn,nTnodeBytes) == nTnodeBytes);
-		}
-	}
-
-	return ok;
-
-}
-
-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)) ==
-				sizeof(endMarker));
-	}
-
-	return ok ? 1 : 0;
-}
-
-static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj)
-{
-	__u32 baseChunk;
-	int ok = 1;
-	yaffs_Device *dev = obj->myDev;
-	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)
-			ok = (yaffs_CheckpointRead(dev,tn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8) ==
-			      (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8);
-		else
-			ok = 0;
-
-		if(tn && ok){
-			ok = yaffs_AddOrFindLevel0Tnode(dev,
-					       		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;
-}
-
-
-static int yaffs_WriteCheckpointObjects(yaffs_Device *dev)
-{
-	yaffs_Object *obj;
-	yaffs_CheckpointObject cp;
-	int i;
-	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) {
-			if (lh) {
-				obj = list_entry(lh, yaffs_Object, hashLink);
-				if (!obj->deferedFree) {
-					yaffs_ObjectToCheckpointObject(&cp,obj);
-					cp.structType = sizeof(cp);
-
-					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);
-					}
-				}
-			}
-		}
-	 }
-
-	 /* 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;
-}
-
-static int yaffs_ReadCheckpointObjects(yaffs_Device *dev)
-{
-	yaffs_Object *obj;
-	yaffs_CheckpointObject cp;
-	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)) {
-			T(YAFFS_TRACE_CHECKPOINT,(TSTR("struct size %d instead of %d ok %d"TENDSTR),
-				cp.structType,sizeof(cp),ok));
-			ok = 0;
-		}
-
-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR),
-			cp.objectId,cp.parentId,cp.variantType,cp.chunkId));
-
-		if(ok && cp.objectId == ~0)
-			done = 1;
-		else if(ok){
-			obj = yaffs_FindOrCreateObjectByNumber(dev,cp.objectId, cp.variantType);
-			if(obj) {
-				yaffs_CheckpointObjectToObject(obj,&cp);
-				if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
-					ok = yaffs_ReadCheckpointTnodes(obj);
-				} else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
-					obj->hardLinks.next =
-						    (struct list_head *)
-						    hardList;
-					hardList = obj;
-				}
-
-			}
-		}
-	}
-
-	if(ok)
-		yaffs_HardlinkFixup(dev,hardList);
-
-	return ok ? 1 : 0;
-}
-
-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;
-}
-
-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;
-}
-
-
-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);
-	}
-	if(ok){
-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint device" TENDSTR)));
-		ok = yaffs_WriteCheckpointDevice(dev);
-	}
-	if(ok){
-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint objects" TENDSTR)));
-		ok = yaffs_WriteCheckpointObjects(dev);
-	}
-	if(ok){
-		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;
-
-	return dev->isCheckpointed;
-}
-
-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)));
-		ok = yaffs_ReadCheckpointValidityMarker(dev,1);
-	}
-	if(ok){
-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint device" TENDSTR)));
-		ok = yaffs_ReadCheckpointDevice(dev);
-	}
-	if(ok){
-		T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR)));
-		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));
-	}
-
-	if(!yaffs_CheckpointClose(dev))
-		ok = 0;
-
-	if(ok)
-	    	dev->isCheckpointed = 1;
-	 else
-	 	dev->isCheckpointed = 0;
-
-	return ok ? 1 : 0;
-
-}
-
-static void yaffs_InvalidateCheckpoint(yaffs_Device *dev)
-{
-	if(dev->isCheckpointed ||
-	   dev->blocksInCheckpoint > 0){
-		dev->isCheckpointed = 0;
-		yaffs_CheckpointInvalidateStream(dev);
-		if(dev->superBlock && dev->markSuperBlockDirty)
-			dev->markSuperBlockDirty(dev->superBlock);
-	}
-}
-
-
-int yaffs_CheckpointSave(yaffs_Device *dev)
-{
-
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("save entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
-
-	yaffs_VerifyObjects(dev);
-	yaffs_VerifyBlocks(dev);
-	yaffs_VerifyFreeChunks(dev);
-
-	if(!dev->isCheckpointed) {
-		yaffs_InvalidateCheckpoint(dev);
-		yaffs_WriteCheckpointData(dev);
-	}
-
-	T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
-
-	return dev->isCheckpointed;
-}
-
-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){
-		yaffs_VerifyObjects(dev);
-		yaffs_VerifyBlocks(dev);
-		yaffs_VerifyFreeChunks(dev);
-	}
-
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed));
-
-	return retval;
-}
-
-/*--------------------- File read/write ------------------------
- * Read and write have very similar structures.
- * In general the read/write has three parts to it
- * An incomplete chunk to start with (if the read/write is not chunk-aligned)
- * Some complete chunks
- * An incomplete chunk to end off with
- *
- * Curve-balls: the first chunk might also be the last chunk.
- */
-
-int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset,
-			   int nBytes)
-{
-
-	int chunk;
-	int start;
-	int nToCopy;
-	int n = nBytes;
-	int nDone = 0;
-	yaffs_ChunkCache *cache;
-
-	yaffs_Device *dev;
-
-	dev = in->myDev;
-
-	while (n > 0) {
-		//chunk = offset / dev->nDataBytesPerChunk + 1;
-		//start = offset % dev->nDataBytesPerChunk;
-		yaffs_AddrToChunk(dev,offset,&chunk,&start);
-		chunk++;
-
-		/* OK now check for the curveball where the start and end are in
-		 * the same chunk.
-		 */
-		if ((start + n) < dev->nDataBytesPerChunk) {
-			nToCopy = n;
-		} else {
-			nToCopy = dev->nDataBytesPerChunk - start;
-		}
-
-		cache = yaffs_FindChunkCache(in, chunk);
-
-		/* If the chunk is already in the cache or it is less than a whole chunk
-		 * then use the cache (if there is caching)
-		 * else bypass the cache.
-		 */
-		if (cache || nToCopy != dev->nDataBytesPerChunk) {
-			if (dev->nShortOpCaches > 0) {
-
-				/* If we can't find the data in the cache, then load it up. */
-
-				if (!cache) {
-					cache = yaffs_GrabChunkCache(in->myDev);
-					cache->object = in;
-					cache->chunkId = chunk;
-					cache->dirty = 0;
-					cache->locked = 0;
-					yaffs_ReadChunkDataFromObject(in, chunk,
-								      cache->
-								      data);
-					cache->nBytes = 0;
-				}
-
-				yaffs_UseChunkCache(dev, cache, 0);
-
-				cache->locked = 1;
-
-#ifdef CONFIG_YAFFS_WINCE
-				yfsd_UnlockYAFFS(TRUE);
-#endif
-				memcpy(buffer, &cache->data[start], nToCopy);
-
-#ifdef CONFIG_YAFFS_WINCE
-				yfsd_LockYAFFS(TRUE);
-#endif
-				cache->locked = 0;
-			} else {
-				/* Read into the local buffer then copy..*/
-
-				__u8 *localBuffer =
-				    yaffs_GetTempBuffer(dev, __LINE__);
-				yaffs_ReadChunkDataFromObject(in, chunk,
-							      localBuffer);
-#ifdef CONFIG_YAFFS_WINCE
-				yfsd_UnlockYAFFS(TRUE);
-#endif
-				memcpy(buffer, &localBuffer[start], nToCopy);
-
-#ifdef CONFIG_YAFFS_WINCE
-				yfsd_LockYAFFS(TRUE);
-#endif
-				yaffs_ReleaseTempBuffer(dev, localBuffer,
-							__LINE__);
-			}
-
-		} else {
-#ifdef CONFIG_YAFFS_WINCE
-			__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
-
-			/* Under WinCE can't do direct transfer. Need to use a local buffer.
-			 * This is because we otherwise screw up WinCE's memory mapper
-			 */
-			yaffs_ReadChunkDataFromObject(in, chunk, localBuffer);
-
-#ifdef CONFIG_YAFFS_WINCE
-			yfsd_UnlockYAFFS(TRUE);
-#endif
-			memcpy(buffer, localBuffer, dev->nDataBytesPerChunk);
-
-#ifdef CONFIG_YAFFS_WINCE
-			yfsd_LockYAFFS(TRUE);
-			yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__);
-#endif
-
-#else
-			/* A full chunk. Read directly into the supplied buffer. */
-			yaffs_ReadChunkDataFromObject(in, chunk, buffer);
-#endif
-		}
-
-		n -= nToCopy;
-		offset += nToCopy;
-		buffer += nToCopy;
-		nDone += nToCopy;
-
-	}
-
-	return nDone;
-}
-
-int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset,
-			  int nBytes, int writeThrough)
-{
-
-	int chunk;
-	int start;
-	int nToCopy;
-	int n = nBytes;
-	int nDone = 0;
-	int nToWriteBack;
-	int startOfWrite = offset;
-	int chunkWritten = 0;
-	int nBytesRead;
-
-	yaffs_Device *dev;
-
-	dev = in->myDev;
-
-	while (n > 0 && chunkWritten >= 0) {
-		//chunk = offset / dev->nDataBytesPerChunk + 1;
-		//start = offset % dev->nDataBytesPerChunk;
-		yaffs_AddrToChunk(dev,offset,&chunk,&start);
-		chunk++;
-
-		/* OK now check for the curveball where the start and end are in
-		 * the same chunk.
-		 */
-
-		if ((start + n) < dev->nDataBytesPerChunk) {
-			nToCopy = n;
-
-			/* Now folks, to calculate how many bytes to write back....
-			 * If we're overwriting and not writing to then end of file then
-			 * we need to write back as much as was there before.
-			 */
-
-			nBytesRead =
-			    in->variant.fileVariant.fileSize -
-			    ((chunk - 1) * dev->nDataBytesPerChunk);
-
-			if (nBytesRead > dev->nDataBytesPerChunk) {
-				nBytesRead = dev->nDataBytesPerChunk;
-			}
-
-			nToWriteBack =
-			    (nBytesRead >
-			     (start + n)) ? nBytesRead : (start + n);
-
-		} else {
-			nToCopy = dev->nDataBytesPerChunk - start;
-			nToWriteBack = dev->nDataBytesPerChunk;
-		}
-
-		if (nToCopy != dev->nDataBytesPerChunk) {
-			/* An incomplete start or end chunk (or maybe both start and end chunk) */
-			if (dev->nShortOpCaches > 0) {
-				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)) {
-					cache = yaffs_GrabChunkCache(in->myDev);
-					cache->object = in;
-					cache->chunkId = chunk;
-					cache->dirty = 0;
-					cache->locked = 0;
-					yaffs_ReadChunkDataFromObject(in, chunk,
-								      cache->
-								      data);
-				}
-				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;
-				}
-
-				if (cache) {
-					yaffs_UseChunkCache(dev, cache, 1);
-					cache->locked = 1;
-#ifdef CONFIG_YAFFS_WINCE
-					yfsd_UnlockYAFFS(TRUE);
-#endif
-
-					memcpy(&cache->data[start], buffer,
-					       nToCopy);
-
-#ifdef CONFIG_YAFFS_WINCE
-					yfsd_LockYAFFS(TRUE);
-#endif
-					cache->locked = 0;
-					cache->nBytes = nToWriteBack;
-
-					if (writeThrough) {
-						chunkWritten =
-						    yaffs_WriteChunkDataToObject
-						    (cache->object,
-						     cache->chunkId,
-						     cache->data, cache->nBytes,
-						     1);
-						cache->dirty = 0;
-					}
-
-				} else {
-					chunkWritten = -1;	/* fail the write */
-				}
-			} else {
-				/* An incomplete start or end chunk (or maybe both start and end chunk)
-				 * Read into the local buffer then copy, then copy over and write back.
-				 */
-
-				__u8 *localBuffer =
-				    yaffs_GetTempBuffer(dev, __LINE__);
-
-				yaffs_ReadChunkDataFromObject(in, chunk,
-							      localBuffer);
-
-#ifdef CONFIG_YAFFS_WINCE
-				yfsd_UnlockYAFFS(TRUE);
-#endif
-
-				memcpy(&localBuffer[start], buffer, nToCopy);
-
-#ifdef CONFIG_YAFFS_WINCE
-				yfsd_LockYAFFS(TRUE);
-#endif
-				chunkWritten =
-				    yaffs_WriteChunkDataToObject(in, chunk,
-								 localBuffer,
-								 nToWriteBack,
-								 0);
-
-				yaffs_ReleaseTempBuffer(dev, localBuffer,
-							__LINE__);
-
-			}
-
-		} else {
-
-#ifdef CONFIG_YAFFS_WINCE
-			/* Under WinCE can't do direct transfer. Need to use a local buffer.
-			 * This is because we otherwise screw up WinCE's memory mapper
-			 */
-			__u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__);
-#ifdef CONFIG_YAFFS_WINCE
-			yfsd_UnlockYAFFS(TRUE);
-#endif
-			memcpy(localBuffer, buffer, dev->nDataBytesPerChunk);
-#ifdef CONFIG_YAFFS_WINCE
-			yfsd_LockYAFFS(TRUE);
-#endif
-			chunkWritten =
-			    yaffs_WriteChunkDataToObject(in, chunk, localBuffer,
-							 dev->nDataBytesPerChunk,
-							 0);
-			yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__);
-#else
-			/* A full chunk. Write directly from the supplied buffer. */
-			chunkWritten =
-			    yaffs_WriteChunkDataToObject(in, chunk, buffer,
-							 dev->nDataBytesPerChunk,
-							 0);
-#endif
-			/* Since we've overwritten the cached data, we better invalidate it. */
-			yaffs_InvalidateChunkCache(in, chunk);
-		}
-
-		if (chunkWritten >= 0) {
-			n -= nToCopy;
-			offset += nToCopy;
-			buffer += nToCopy;
-			nDone += nToCopy;
-		}
-
-	}
-
-	/* Update file object */
-
-	if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) {
-		in->variant.fileVariant.fileSize = (startOfWrite + nDone);
-	}
-
-	in->dirty = 1;
-
-	return nDone;
-}
-
-
-/* ---------------------- File resizing stuff ------------------ */
-
-static void yaffs_PruneResizedChunks(yaffs_Object * in, int newSize)
-{
-
-	yaffs_Device *dev = in->myDev;
-	int oldFileSize = in->variant.fileVariant.fileSize;
-
-	int lastDel = 1 + (oldFileSize - 1) / dev->nDataBytesPerChunk;
-
-	int startDel = 1 + (newSize + dev->nDataBytesPerChunk - 1) /
-	    dev->nDataBytesPerChunk;
-	int i;
-	int chunkId;
-
-	/* Delete backwards so that we don't end up with holes if
-	 * power is lost part-way through the operation.
-	 */
-	for (i = lastDel; i >= startDel; i--) {
-		/* NB this could be optimised somewhat,
-		 * eg. could retrieve the tags and write them without
-		 * using yaffs_DeleteChunk
-		 */
-
-		chunkId = yaffs_FindAndDeleteChunkInFile(in, i, NULL);
-		if (chunkId > 0) {
-			if (chunkId <
-			    (dev->internalStartBlock * dev->nChunksPerBlock)
-			    || chunkId >=
-			    ((dev->internalEndBlock +
-			      1) * dev->nChunksPerBlock)) {
-				T(YAFFS_TRACE_ALWAYS,
-				  (TSTR("Found daft chunkId %d for %d" TENDSTR),
-				   chunkId, i));
-			} else {
-				in->nDataChunks--;
-				yaffs_DeleteChunk(dev, chunkId, 1, __LINE__);
-			}
-		}
-	}
-
-}
-
-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);
-
-	yaffs_FlushFilesChunkCache(in);
-	yaffs_InvalidateWholeChunkCache(in);
-
-	yaffs_CheckGarbageCollection(dev);
-
-	if (in->variantType != YAFFS_OBJECT_TYPE_FILE) {
-		return yaffs_GetFileSize(in);
-	}
-
-	if (newSize == oldFileSize) {
-		return oldFileSize;
-	}
-
-	if (newSize < oldFileSize) {
-
-		yaffs_PruneResizedChunks(in, 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 */
-			yaffs_ReadChunkDataFromObject(in, lastChunk,
-						      localBuffer);
-
-			memset(localBuffer + newSizeOfPartialChunk, 0,
-			       dev->nDataBytesPerChunk - newSizeOfPartialChunk);
-
-			yaffs_WriteChunkDataToObject(in, lastChunk, localBuffer,
-						     newSizeOfPartialChunk, 1);
-
-			yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__);
-		}
-
-		in->variant.fileVariant.fileSize = newSize;
-
-		yaffs_PruneFileStructure(dev, &in->variant.fileVariant);
-	} else {
-		/* newsSize > oldFileSize */
-		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.
-	 */
-	if (in->parent->objectId != YAFFS_OBJECTID_UNLINKED &&
-	    in->parent->objectId != YAFFS_OBJECTID_DELETED) {
-		yaffs_UpdateObjectHeader(in, NULL, 0,
-					 (newSize < oldFileSize) ? 1 : 0, 0);
-	}
-
-	return newSize;
-}
-
-loff_t yaffs_GetFileSize(yaffs_Object * obj)
-{
-	obj = yaffs_GetEquivalentObject(obj);
-
-	switch (obj->variantType) {
-	case YAFFS_OBJECT_TYPE_FILE:
-		return obj->variant.fileVariant.fileSize;
-	case YAFFS_OBJECT_TYPE_SYMLINK:
-		return yaffs_strlen(obj->variant.symLinkVariant.alias);
-	default:
-		return 0;
-	}
-}
-
-
-
-int yaffs_FlushFile(yaffs_Object * in, int updateTime)
-{
-	int retVal;
-	if (in->dirty) {
-		yaffs_FlushFilesChunkCache(in);
-		if (updateTime) {
-#ifdef CONFIG_YAFFS_WINCE
-			yfsd_WinFileTimeNow(in->win_mtime);
-#else
-
-			in->yst_mtime = Y_CURRENT_TIME;
-
-#endif
-		}
-
-		retVal =
-		    (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >=
-		     0) ? YAFFS_OK : YAFFS_FAIL;
-	} else {
-		retVal = YAFFS_OK;
-	}
-
-	return retVal;
-
-}
-
-static int yaffs_DoGenericObjectDeletion(yaffs_Object * in)
-{
-
-	/* First off, invalidate the file's data in the cache, without flushing. */
-	yaffs_InvalidateWholeChunkCache(in);
-
-	if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) {
-		/* Move to the unlinked directory so we have a record that it was deleted. */
-		yaffs_ChangeObjectName(in, in->myDev->deletedDir,"deleted", 0, 0);
-
-	}
-
-	yaffs_RemoveObjectFromDirectory(in);
-	yaffs_DeleteChunk(in->myDev, in->chunkId, 1, __LINE__);
-	in->chunkId = -1;
-
-	yaffs_FreeObject(in);
-	return YAFFS_OK;
-
-}
-
-/* yaffs_DeleteFile deletes the whole file data
- * 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;
-
-		}
-#else
-		if (in->inUse <= 0) {
-			immediateDeletion = 1;
-
-		}
-#endif
-		if (immediateDeletion) {
-			retVal =
-			    yaffs_ChangeObjectName(in, in->myDev->deletedDir,
-						   "deleted", 0, 0);
-			T(YAFFS_TRACE_TRACING,
-			  (TSTR("yaffs: immediate deletion of file %d" TENDSTR),
-			   in->objectId));
-			in->deleted = 1;
-			in->myDev->nDeletedFiles++;
-			if (0 && in->myDev->isYaffs2) {
-				yaffs_ResizeFile(in, 0);
-			}
-			yaffs_SoftDeleteFile(in);
-		} else {
-			retVal =
-			    yaffs_ChangeObjectName(in, in->myDev->unlinkedDir,
-						   "unlinked", 0, 0);
-		}
-
-	}
-	return retVal;
-}
-
-int yaffs_DeleteFile(yaffs_Object * in)
-{
-	int retVal = YAFFS_OK;
-
-	if (in->nDataChunks > 0) {
-		/* Use soft deletion if there is data in the file */
-		if (!in->unlinked) {
-			retVal = yaffs_UnlinkFile(in);
-		}
-		if (retVal == YAFFS_OK && in->unlinked && !in->deleted) {
-			in->deleted = 1;
-			in->myDev->nDeletedFiles++;
-			yaffs_SoftDeleteFile(in);
-		}
-		return in->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);
-		in->variant.fileVariant.top = NULL;
-		yaffs_DoGenericObjectDeletion(in);
-
-		return YAFFS_OK;
-	}
-}
-
-static int yaffs_DeleteDirectory(yaffs_Object * in)
-{
-	/* First check that the directory is empty. */
-	if (list_empty(&in->variant.directoryVariant.children)) {
-		return yaffs_DoGenericObjectDeletion(in);
-	}
-
-	return YAFFS_FAIL;
-
-}
-
-static int yaffs_DeleteSymLink(yaffs_Object * in)
-{
-	YFREE(in->variant.symLinkVariant.alias);
-
-	return yaffs_DoGenericObjectDeletion(in);
-}
-
-static int yaffs_DeleteHardLink(yaffs_Object * in)
-{
-	/* remove this hardlink from the list assocaited with the equivalent
-	 * object
-	 */
-	list_del(&in->hardLinks);
-	return yaffs_DoGenericObjectDeletion(in);
-}
-
-static void yaffs_DestroyObject(yaffs_Object * obj)
-{
-	switch (obj->variantType) {
-	case YAFFS_OBJECT_TYPE_FILE:
-		yaffs_DeleteFile(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_DIRECTORY:
-		yaffs_DeleteDirectory(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_SYMLINK:
-		yaffs_DeleteSymLink(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_HARDLINK:
-		yaffs_DeleteHardLink(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_SPECIAL:
-		yaffs_DoGenericObjectDeletion(obj);
-		break;
-	case YAFFS_OBJECT_TYPE_UNKNOWN:
-		break;		/* should not happen. */
-	}
-}
-
-static int yaffs_UnlinkWorker(yaffs_Object * obj)
-{
-
-	if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
-		return yaffs_DeleteHardLink(obj);
-	} 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
-		 * The Linux link/inode model.
-		 *
-		 * We can't really delete the object.
-		 * Instead, we do the following:
-		 * - Select a hardlink.
-		 * - Unhook it from the hard links
-		 * - Unhook it from its parent directory (so that the rename can work)
-		 * - Rename the object to the hardlink's name.
-		 * - Delete the hardlink
-		 */
-
-		yaffs_Object *hl;
-		int retVal;
-		YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
-
-		hl = list_entry(obj->hardLinks.next, yaffs_Object, hardLinks);
-
-		list_del_init(&hl->hardLinks);
-		list_del_init(&hl->siblings);
-
-		yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1);
-
-		retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0);
-
-		if (retVal == YAFFS_OK) {
-			retVal = yaffs_DoGenericObjectDeletion(hl);
-		}
-		return retVal;
-
-	} else {
-		switch (obj->variantType) {
-		case YAFFS_OBJECT_TYPE_FILE:
-			return yaffs_UnlinkFile(obj);
-			break;
-		case YAFFS_OBJECT_TYPE_DIRECTORY:
-			return yaffs_DeleteDirectory(obj);
-			break;
-		case YAFFS_OBJECT_TYPE_SYMLINK:
-			return yaffs_DeleteSymLink(obj);
-			break;
-		case YAFFS_OBJECT_TYPE_SPECIAL:
-			return yaffs_DoGenericObjectDeletion(obj);
-			break;
-		case YAFFS_OBJECT_TYPE_HARDLINK:
-		case YAFFS_OBJECT_TYPE_UNKNOWN:
-		default:
-			return YAFFS_FAIL;
-		}
-	}
-}
-
-
-static int yaffs_UnlinkObject( yaffs_Object *obj)
-{
-
-	if (obj && obj->unlinkAllowed) {
-		return yaffs_UnlinkWorker(obj);
-	}
-
-	return YAFFS_FAIL;
-
-}
-int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name)
-{
-	yaffs_Object *obj;
-
-	obj = yaffs_FindObjectByName(dir, name);
-	return yaffs_UnlinkObject(obj);
-}
-
-/*----------------------- Initialisation Scanning ---------------------- */
-
-static void yaffs_HandleShadowedObject(yaffs_Device * dev, int objId,
-				       int backwardScanning)
-{
-	yaffs_Object *obj;
-
-	if (!backwardScanning) {
-		/* Handle YAFFS1 forward scanning case
-		 * For YAFFS1 we always do the deletion
-		 */
-
-	} else {
-		/* Handle YAFFS2 case (backward scanning)
-		 * If the shadowed object exists then ignore.
-		 */
-		if (yaffs_FindObjectByNumber(dev, objId)) {
-			return;
-		}
-	}
-
-	/* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc.
-	 * We put it in unlinked dir to be cleaned up after the scanning
-	 */
-	obj =
-	    yaffs_FindOrCreateObjectByNumber(dev, objId,
-					     YAFFS_OBJECT_TYPE_FILE);
-	yaffs_AddObjectToDirectory(dev->unlinkedDir, obj);
-	obj->variant.fileVariant.shrinkSize = 0;
-	obj->valid = 1;		/* So that we don't read any other info for this file */
-
-}
-
-typedef struct {
-	int seq;
-	int block;
-} yaffs_BlockIndex;
-
-
-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);
-
-		in = yaffs_FindObjectByNumber(dev,
-					      hl->variant.hardLinkVariant.
-					      equivalentObjectId);
-
-		if (in) {
-			/* Add the hardlink pointers */
-			hl->variant.hardLinkVariant.equivalentObject = in;
-			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;
-			INIT_LIST_HEAD(&hl->hardLinks);
-
-		}
-
-	}
-
-}
-
-
-
-
-
-static int ybicmp(const void *a, const void *b){
-    register int aseq = ((yaffs_BlockIndex *)a)->seq;
-    register int bseq = ((yaffs_BlockIndex *)b)->seq;
-    register int ablock = ((yaffs_BlockIndex *)a)->block;
-    register int bblock = ((yaffs_BlockIndex *)b)->block;
-    if( aseq == bseq )
-        return ablock - bblock;
-    else
-        return aseq - bseq;
-
-}
-
-static int yaffs_Scan(yaffs_Device * dev)
-{
-	yaffs_ExtendedTags tags;
-	int blk;
-	int blockIterator;
-	int startIterator;
-	int endIterator;
-	int nBlocksToScan = 0;
-	int result;
-
-	int chunk;
-	int c;
-	int deleted;
-	yaffs_BlockState state;
-	yaffs_Object *hardList = NULL;
-	yaffs_BlockInfo *bi;
-	int sequenceNumber;
-	yaffs_ObjectHeader *oh;
-	yaffs_Object *in;
-	yaffs_Object *parent;
-	int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1;
-
-	int alloc_failed = 0;
-
-
-	__u8 *chunkData;
-
-	yaffs_BlockIndex *blockIndex = NULL;
-
-	if (dev->isYaffs2) {
-		T(YAFFS_TRACE_SCAN,
-		  (TSTR("yaffs_Scan is not for YAFFS2!" TENDSTR)));
-		return YAFFS_FAIL;
-	}
-
-	//TODO  Throw all the yaffs2 stuuf out of yaffs_Scan since it is only for yaffs1 format.
-
-	T(YAFFS_TRACE_SCAN,
-	  (TSTR("yaffs_Scan starts  intstartblk %d intendblk %d..." TENDSTR),
-	   dev->internalStartBlock, dev->internalEndBlock));
-
-	chunkData = yaffs_GetTempBuffer(dev, __LINE__);
-
-	dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER;
-
-	if (dev->isYaffs2) {
-		blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex));
-		if(!blockIndex)
-			return YAFFS_FAIL;
-	}
-
-	/* Scan all the blocks to determine their state */
-	for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) {
-		bi = yaffs_GetBlockInfo(dev, blk);
-		yaffs_ClearChunkBits(dev, blk);
-		bi->pagesInUse = 0;
-		bi->softDeletions = 0;
-
-		yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber);
-
-		bi->blockState = state;
-		bi->sequenceNumber = sequenceNumber;
-
-		T(YAFFS_TRACE_SCAN_DEBUG,
-		  (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk,
-		   state, sequenceNumber));
-
-		if (state == YAFFS_BLOCK_STATE_DEAD) {
-			T(YAFFS_TRACE_BAD_BLOCKS,
-			  (TSTR("block %d is bad" TENDSTR), blk));
-		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
-			T(YAFFS_TRACE_SCAN_DEBUG,
-			  (TSTR("Block empty " TENDSTR)));
-			dev->nErasedBlocks++;
-			dev->nFreeChunks += dev->nChunksPerBlock;
-		} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-
-			/* Determine the highest sequence number */
-			if (dev->isYaffs2 &&
-			    sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
-			    sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
-
-				blockIndex[nBlocksToScan].seq = sequenceNumber;
-				blockIndex[nBlocksToScan].block = blk;
-
-				nBlocksToScan++;
-
-				if (sequenceNumber >= dev->sequenceNumber) {
-					dev->sequenceNumber = sequenceNumber;
-				}
-			} else if (dev->isYaffs2) {
-				/* TODO: Nasty sequence number! */
-				T(YAFFS_TRACE_SCAN,
-				  (TSTR
-				   ("Block scanning block %d has bad sequence number %d"
-				    TENDSTR), blk, sequenceNumber));
-
-			}
-		}
-	}
-
-	/* Sort the blocks
-	 * Dungy old bubble sort for now...
-	 */
-	if (dev->isYaffs2) {
-		yaffs_BlockIndex temp;
-		int i;
-		int j;
-
-		for (i = 0; i < nBlocksToScan; i++)
-			for (j = i + 1; j < nBlocksToScan; j++)
-				if (blockIndex[i].seq > blockIndex[j].seq) {
-					temp = blockIndex[j];
-					blockIndex[j] = blockIndex[i];
-					blockIndex[i] = temp;
-				}
-	}
-
-	/* Now scan the blocks looking at the data. */
-	if (dev->isYaffs2) {
-		startIterator = 0;
-		endIterator = nBlocksToScan - 1;
-		T(YAFFS_TRACE_SCAN_DEBUG,
-		  (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan));
-	} else {
-		startIterator = dev->internalStartBlock;
-		endIterator = dev->internalEndBlock;
-	}
-
-	/* For each block.... */
-	for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator;
-	     blockIterator++) {
-
-		if (dev->isYaffs2) {
-			/* get the block to scan in the correct order */
-			blk = blockIndex[blockIterator].block;
-		} else {
-			blk = blockIterator;
-		}
-
-		bi = yaffs_GetBlockInfo(dev, blk);
-		state = bi->blockState;
-
-		deleted = 0;
-
-		/* For each chunk in each block that needs scanning....*/
-		for (c = 0; !alloc_failed && c < dev->nChunksPerBlock &&
-		     state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) {
-			/* Read the tags and decide what to do */
-			chunk = blk * dev->nChunksPerBlock + c;
-
-			result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
-							&tags);
-
-			/* Let's have a good look at this chunk... */
-
-			if (!dev->isYaffs2 && tags.chunkDeleted) {
-				/* YAFFS1 only...
-				 * A deleted chunk
-				 */
-				deleted++;
-				dev->nFreeChunks++;
-				/*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 is the one being allocated from
-				 */
-
-				if (c == 0) {
-					/* We're looking at the first chunk in the block so the block is unused */
-					state = YAFFS_BLOCK_STATE_EMPTY;
-					dev->nErasedBlocks++;
-				} else {
-					/* this is the block being allocated from */
-					T(YAFFS_TRACE_SCAN,
-					  (TSTR
-					   (" Allocating from %d %d" TENDSTR),
-					   blk, c));
-					state = YAFFS_BLOCK_STATE_ALLOCATING;
-					dev->allocationBlock = blk;
-					dev->allocationPage = c;
-					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);
-			} else if (tags.chunkId > 0) {
-				/* chunkId > 0 so it is a data chunk... */
-				unsigned int endpos;
-
-				yaffs_SetChunkBit(dev, blk, c);
-				bi->pagesInUse++;
-
-				in = yaffs_FindOrCreateObjectByNumber(dev,
-								      tags.
-								      objectId,
-								      YAFFS_OBJECT_TYPE_FILE);
-				/* PutChunkIntoFile checks for a clash (two data chunks with
-				 * the same chunkId).
-				 */
-
-				if(!in)
-					alloc_failed = 1;
-
-				if(in){
-					if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1))
-						alloc_failed = 1;
-				}
-
-				endpos =
-				    (tags.chunkId - 1) * dev->nDataBytesPerChunk +
-				    tags.byteCount;
-				if (in &&
-				    in->variantType == YAFFS_OBJECT_TYPE_FILE
-				    && in->variant.fileVariant.scannedFileSize <
-				    endpos) {
-					in->variant.fileVariant.
-					    scannedFileSize = endpos;
-					if (!dev->useHeaderFileSize) {
-						in->variant.fileVariant.
-						    fileSize =
-						    in->variant.fileVariant.
-						    scannedFileSize;
-					}
-
-				}
-				/* T((" %d %d data %d %d\n",blk,c,tags.objectId,tags.chunkId));   */
-			} else {
-				/* chunkId == 0, so it is an ObjectHeader.
-				 * Thus, we read in the object header and make the object
-				 */
-				yaffs_SetChunkBit(dev, blk, c);
-				bi->pagesInUse++;
-
-				result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk,
-								chunkData,
-								NULL);
-
-				oh = (yaffs_ObjectHeader *) chunkData;
-
-				in = yaffs_FindObjectByNumber(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
-					 * deleted, and worse still it has changed type. Delete the old object.
-					 */
-
-					yaffs_DestroyObject(in);
-
-					in = 0;
-				}
-
-				in = yaffs_FindOrCreateObjectByNumber(dev,
-								      tags.
-								      objectId,
-								      oh->type);
-
-				if(!in)
-					alloc_failed = 1;
-
-				if (in && oh->shadowsObject > 0) {
-					yaffs_HandleShadowedObject(dev,
-								   oh->
-								   shadowsObject,
-								   0);
-				}
-
-				if (in && in->valid) {
-					/* We have already filled this one. We have a duplicate and need to resolve it. */
-
-					unsigned existingSerial = in->serial;
-					unsigned newSerial = tags.serialNumber;
-
-					if (dev->isYaffs2 ||
-					    ((existingSerial + 1) & 3) ==
-					    newSerial) {
-						/* Use new one - destroy the exisiting one */
-						yaffs_DeleteChunk(dev,
-								  in->chunkId,
-								  1, __LINE__);
-						in->valid = 0;
-					} else {
-						/* Use existing - destroy this one. */
-						yaffs_DeleteChunk(dev, chunk, 1,
-								  __LINE__);
-					}
-				}
-
-				if (in && !in->valid &&
-				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
-				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) {
-					/* We only load some info, don't fiddle with directory structure */
-					in->valid = 1;
-					in->variantType = oh->type;
-
-					in->yst_mode = oh->yst_mode;
-#ifdef CONFIG_YAFFS_WINCE
-					in->win_atime[0] = oh->win_atime[0];
-					in->win_ctime[0] = oh->win_ctime[0];
-					in->win_mtime[0] = oh->win_mtime[0];
-					in->win_atime[1] = oh->win_atime[1];
-					in->win_ctime[1] = oh->win_ctime[1];
-					in->win_mtime[1] = oh->win_mtime[1];
-#else
-					in->yst_uid = oh->yst_uid;
-					in->yst_gid = oh->yst_gid;
-					in->yst_atime = oh->yst_atime;
-					in->yst_mtime = oh->yst_mtime;
-					in->yst_ctime = oh->yst_ctime;
-					in->yst_rdev = oh->yst_rdev;
-#endif
-					in->chunkId = chunk;
-
-				} else if (in && !in->valid) {
-					/* we need to load this info */
-
-					in->valid = 1;
-					in->variantType = oh->type;
-
-					in->yst_mode = oh->yst_mode;
-#ifdef CONFIG_YAFFS_WINCE
-					in->win_atime[0] = oh->win_atime[0];
-					in->win_ctime[0] = oh->win_ctime[0];
-					in->win_mtime[0] = oh->win_mtime[0];
-					in->win_atime[1] = oh->win_atime[1];
-					in->win_ctime[1] = oh->win_ctime[1];
-					in->win_mtime[1] = oh->win_mtime[1];
-#else
-					in->yst_uid = oh->yst_uid;
-					in->yst_gid = oh->yst_gid;
-					in->yst_atime = oh->yst_atime;
-					in->yst_mtime = oh->yst_mtime;
-					in->yst_ctime = oh->yst_ctime;
-					in->yst_rdev = oh->yst_rdev;
-#endif
-					in->chunkId = chunk;
-
-					yaffs_SetObjectName(in, oh->name);
-					in->dirty = 0;
-
-					/* directory stuff...
-					 * hook up to parent
-					 */
-
-					parent =
-					    yaffs_FindOrCreateObjectByNumber
-					    (dev, oh->parentObjectId,
-					     YAFFS_OBJECT_TYPE_DIRECTORY);
-					if (parent->variantType ==
-					    YAFFS_OBJECT_TYPE_UNKNOWN) {
-						/* Set up as a directory */
-						parent->variantType =
-						    YAFFS_OBJECT_TYPE_DIRECTORY;
-						INIT_LIST_HEAD(&parent->variant.
-							       directoryVariant.
-							       children);
-					} else if (parent->variantType !=
-						   YAFFS_OBJECT_TYPE_DIRECTORY)
-					{
-						/* Hoosterman, another problem....
-						 * We're trying to use a non-directory as a directory
-						 */
-
-						T(YAFFS_TRACE_ERROR,
-						  (TSTR
-						   ("yaffs tragedy: attempting to use non-directory as"
-						    " a directory in scan. Put in lost+found."
-						    TENDSTR)));
-						parent = dev->lostNFoundDir;
-					}
-
-					yaffs_AddObjectToDirectory(parent, in);
-
-					if (0 && (parent == dev->deletedDir ||
-						  parent == dev->unlinkedDir)) {
-						in->deleted = 1;	/* If it is unlinked at start up then it wants deleting */
-						dev->nDeletedFiles++;
-					}
-					/* Note re hardlinks.
-					 * 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.
-					 */
-
-					switch (in->variantType) {
-					case YAFFS_OBJECT_TYPE_UNKNOWN:
-						/* 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.
-							    fileSize =
-							    oh->fileSize;
-
-						break;
-					case YAFFS_OBJECT_TYPE_HARDLINK:
-						in->variant.hardLinkVariant.
-						    equivalentObjectId =
-						    oh->equivalentObjectId;
-						in->hardLinks.next =
-						    (struct list_head *)
-						    hardList;
-						hardList = in;
-						break;
-					case YAFFS_OBJECT_TYPE_DIRECTORY:
-						/* Do nothing */
-						break;
-					case YAFFS_OBJECT_TYPE_SPECIAL:
-						/* Do nothing */
-						break;
-					case YAFFS_OBJECT_TYPE_SYMLINK:
-						in->variant.symLinkVariant.alias =
-						    yaffs_CloneString(oh->alias);
-						if(!in->variant.symLinkVariant.alias)
-							alloc_failed = 1;
-						break;
-					}
-
-					if (parent == dev->deletedDir) {
-						yaffs_DestroyObject(in);
-						bi->hasShrinkHeader = 1;
-					}
-				}
-			}
-		}
-
-		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-			/* If we got this far while scanning, then the block is fully allocated.*/
-			state = YAFFS_BLOCK_STATE_FULL;
-		}
-
-		bi->blockState = state;
-
-		/* Now let's see if it was dirty */
-		if (bi->pagesInUse == 0 &&
-		    !bi->hasShrinkHeader &&
-		    bi->blockState == YAFFS_BLOCK_STATE_FULL) {
-			yaffs_BlockBecameDirty(dev, blk);
-		}
-
-	}
-
-	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
-	 * hardlinks.
-	 */
-
-	yaffs_HardlinkFixup(dev,hardList);
-
-	/* Handle the unlinked files. Since they were left in an unlinked state we should
-	 * just delete them.
-	 */
-	{
-		struct list_head *i;
-		struct list_head *n;
-
-		yaffs_Object *l;
-		/* Soft delete all the unlinked files */
-		list_for_each_safe(i, n,
-				   &dev->unlinkedDir->variant.directoryVariant.
-				   children) {
-			if (i) {
-				l = list_entry(i, yaffs_Object, siblings);
-				yaffs_DestroyObject(l);
-			}
-		}
-	}
-
-	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
-
-	if(alloc_failed){
-		return YAFFS_FAIL;
-	}
-
-	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR)));
-
-
-	return YAFFS_OK;
-}
-
-static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in)
-{
-	__u8 *chunkData;
-	yaffs_ObjectHeader *oh;
-	yaffs_Device *dev = in->myDev;
-	yaffs_ExtendedTags tags;
-	int result;
-	int alloc_failed = 0;
-
-	if(!in)
-		return;
-
-#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){
-		in->lazyLoaded = 0;
-		chunkData = yaffs_GetTempBuffer(dev, __LINE__);
-
-		result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags);
-		oh = (yaffs_ObjectHeader *) chunkData;
-
-		in->yst_mode = oh->yst_mode;
-#ifdef CONFIG_YAFFS_WINCE
-		in->win_atime[0] = oh->win_atime[0];
-		in->win_ctime[0] = oh->win_ctime[0];
-		in->win_mtime[0] = oh->win_mtime[0];
-		in->win_atime[1] = oh->win_atime[1];
-		in->win_ctime[1] = oh->win_ctime[1];
-		in->win_mtime[1] = oh->win_mtime[1];
-#else
-		in->yst_uid = oh->yst_uid;
-		in->yst_gid = oh->yst_gid;
-		in->yst_atime = oh->yst_atime;
-		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__);
-	}
-}
-
-static int yaffs_ScanBackwards(yaffs_Device * dev)
-{
-	yaffs_ExtendedTags tags;
-	int blk;
-	int blockIterator;
-	int startIterator;
-	int endIterator;
-	int nBlocksToScan = 0;
-
-	int chunk;
-	int result;
-	int c;
-	int deleted;
-	yaffs_BlockState state;
-	yaffs_Object *hardList = NULL;
-	yaffs_BlockInfo *bi;
-	int sequenceNumber;
-	yaffs_ObjectHeader *oh;
-	yaffs_Object *in;
-	yaffs_Object *parent;
-	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;
-
-	if (!dev->isYaffs2) {
-		T(YAFFS_TRACE_SCAN,
-		  (TSTR("yaffs_ScanBackwards is only for YAFFS2!" TENDSTR)));
-		return YAFFS_FAIL;
-	}
-
-	T(YAFFS_TRACE_SCAN,
-	  (TSTR
-	   ("yaffs_ScanBackwards starts  intstartblk %d intendblk %d..."
-	    TENDSTR), dev->internalStartBlock, dev->internalEndBlock));
-
-
-	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 */
-	for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) {
-		bi = yaffs_GetBlockInfo(dev, blk);
-		yaffs_ClearChunkBits(dev, blk);
-		bi->pagesInUse = 0;
-		bi->softDeletions = 0;
-
-		yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber);
-
-		bi->blockState = state;
-		bi->sequenceNumber = sequenceNumber;
-
-		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));
-		} else if (state == YAFFS_BLOCK_STATE_EMPTY) {
-			T(YAFFS_TRACE_SCAN_DEBUG,
-			  (TSTR("Block empty " TENDSTR)));
-			dev->nErasedBlocks++;
-			dev->nFreeChunks += dev->nChunksPerBlock;
-		} else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-
-			/* Determine the highest sequence number */
-			if (dev->isYaffs2 &&
-			    sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER &&
-			    sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) {
-
-				blockIndex[nBlocksToScan].seq = sequenceNumber;
-				blockIndex[nBlocksToScan].block = blk;
-
-				nBlocksToScan++;
-
-				if (sequenceNumber >= dev->sequenceNumber) {
-					dev->sequenceNumber = sequenceNumber;
-				}
-			} else if (dev->isYaffs2) {
-				/* TODO: Nasty sequence number! */
-				T(YAFFS_TRACE_SCAN,
-				  (TSTR
-				   ("Block scanning block %d has bad sequence number %d"
-				    TENDSTR), blk, sequenceNumber));
-
-			}
-		}
-	}
-
-	T(YAFFS_TRACE_SCAN,
-	(TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan));
-
-
-
-	YYIELD();
-
-	/* Sort the blocks */
-#ifndef CONFIG_YAFFS_USE_OWN_SORT
-	yaffs_qsort(blockIndex, nBlocksToScan,
-		sizeof(yaffs_BlockIndex), ybicmp);
-#else
-	{
-	 	/* Dungy old bubble sort... */
-
-		yaffs_BlockIndex temp;
-		int i;
-		int j;
-
-		for (i = 0; i < nBlocksToScan; i++)
-			for (j = i + 1; j < nBlocksToScan; j++)
-				if (blockIndex[i].seq > blockIndex[j].seq) {
-					temp = blockIndex[j];
-					blockIndex[j] = blockIndex[i];
-					blockIndex[i] = temp;
-				}
-	}
-#endif
-
-	YYIELD();
-
-    	T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR)));
-
-	/* Now scan the blocks looking at the data. */
-	startIterator = 0;
-	endIterator = nBlocksToScan - 1;
-	T(YAFFS_TRACE_SCAN_DEBUG,
-	  (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan));
-
-	/* For each block.... backwards */
-	for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator;
-	     blockIterator--) {
-	        /* Cooperative multitasking! This loop can run for so
-		   long that watchdog timers expire. */
-	        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;
-		     !alloc_failed && c >= 0 &&
-		     (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
-		      state == YAFFS_BLOCK_STATE_ALLOCATING); c--) {
-			/* Scan backwards...
-			 * Read the tags and decide what to do
-			 */
-
-			chunk = blk * dev->nChunksPerBlock + c;
-
-			result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL,
-							&tags);
-
-			/* Let's have a good look at this chunk... */
-
-			if (!tags.chunkUsed) {
-				/* An unassigned chunk in the block.
-				 * If there are used chunks after this one, then
-				 * 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
-				 * 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;
-					dev->nErasedBlocks++;
-				} else {
-					if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING ||
-					    state == YAFFS_BLOCK_STATE_ALLOCATING) {
-					    	if(dev->sequenceNumber == bi->sequenceNumber) {
-							/* this is the block being allocated from */
-
-							T(YAFFS_TRACE_SCAN,
-							  (TSTR
-							   (" Allocating from %d %d"
-							    TENDSTR), blk, c));
-
-							state = YAFFS_BLOCK_STATE_ALLOCATING;
-							dev->allocationBlock = blk;
-							dev->allocationPage = c;
-							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;
-
-
-				yaffs_SetChunkBit(dev, blk, c);
-				bi->pagesInUse++;
-
-				in = yaffs_FindOrCreateObjectByNumber(dev,
-								      tags.
-								      objectId,
-								      YAFFS_OBJECT_TYPE_FILE);
-				if(!in){
-					/* Out of memory */
-					alloc_failed = 1;
-				}
-
-				if (in &&
-				    in->variantType == YAFFS_OBJECT_TYPE_FILE
-				    && chunkBase <
-				    in->variant.fileVariant.shrinkSize) {
-					/* This has not been invalidated by a resize */
-					if(!yaffs_PutChunkIntoFile(in, tags.chunkId,
-							       chunk, -1)){
-						alloc_failed = 1;
-					}
-
-					/* 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) {
-						in->variant.fileVariant.
-						    scannedFileSize = endpos;
-						in->variant.fileVariant.
-						    fileSize =
-						    in->variant.fileVariant.
-						    scannedFileSize;
-					}
-
-				} else if(in) {
-					/* This chunk has been invalidated by a resize, so delete */
-					yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
-
-				}
-			} else {
-				/* chunkId == 0, so it is an ObjectHeader.
-				 * Thus, we read in the object header and make the object
-				 */
-				foundChunksInBlock = 1;
-
-				yaffs_SetChunkBit(dev, blk, c);
-				bi->pagesInUse++;
-
-				oh = NULL;
-				in = NULL;
-
-				if (tags.extraHeaderInfoAvailable) {
-					in = yaffs_FindOrCreateObjectByNumber
-					    (dev, tags.objectId,
-					     tags.extraObjectType);
-				}
-
-				if (!in ||
-#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD
-				    !in->valid ||
-#endif
-				    tags.extraShadows ||
-				    (!in->valid &&
-				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
-				     tags.objectId == YAFFS_OBJECTID_LOSTNFOUND))
-				    ) {
-
-					/* If we don't have  valid info then we need to read the chunk
-					 * TODO In future we can probably defer reading the chunk and
-					 * living with invalid data until needed.
-					 */
-
-					result = yaffs_ReadChunkWithTagsFromNAND(dev,
-									chunk,
-									chunkData,
-									NULL);
-
-					oh = (yaffs_ObjectHeader *) chunkData;
-
-					if (!in)
-						in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type);
-
-				}
-
-				if (!in) {
-					/* 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"
-					    TENDSTR), tags.objectId, chunk));
-
-				}
-
-				if (in->valid) {
-					/* We have already filled this one.
-					 * 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 &&
-					       oh-> type == YAFFS_OBJECT_TYPE_FILE)||
-					      (tags.extraHeaderInfoAvailable  &&
-					       tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE))
-					    ) {
-						__u32 thisSize =
-						    (oh) ? oh->fileSize : tags.
-						    extraFileLength;
-						__u32 parentObjectId =
-						    (oh) ? oh->
-						    parentObjectId : tags.
-						    extraParentObjectId;
-						unsigned isShrink =
-						    (oh) ? oh->isShrink : tags.
-						    extraIsShrinkHeader;
-
-						/* If it is deleted (unlinked at start also means deleted)
-						 * we treat the file size as being zeroed at this point.
-						 */
-						if (parentObjectId ==
-						    YAFFS_OBJECTID_DELETED
-						    || parentObjectId ==
-						    YAFFS_OBJECTID_UNLINKED) {
-							thisSize = 0;
-							isShrink = 1;
-						}
-
-						if (isShrink &&
-						    in->variant.fileVariant.
-						    shrinkSize > thisSize) {
-							in->variant.fileVariant.
-							    shrinkSize =
-							    thisSize;
-						}
-
-						if (isShrink) {
-							bi->hasShrinkHeader = 1;
-						}
-
-					}
-					/* Use existing - destroy this one. */
-					yaffs_DeleteChunk(dev, chunk, 1, __LINE__);
-
-				}
-
-				if (!in->valid &&
-				    (tags.objectId == YAFFS_OBJECTID_ROOT ||
-				     tags.objectId ==
-				     YAFFS_OBJECTID_LOSTNFOUND)) {
-					/* We only load some info, don't fiddle with directory structure */
-					in->valid = 1;
-
-					if(oh) {
-						in->variantType = oh->type;
-
-						in->yst_mode = oh->yst_mode;
-#ifdef CONFIG_YAFFS_WINCE
-						in->win_atime[0] = oh->win_atime[0];
-						in->win_ctime[0] = oh->win_ctime[0];
-						in->win_mtime[0] = oh->win_mtime[0];
-						in->win_atime[1] = oh->win_atime[1];
-						in->win_ctime[1] = oh->win_ctime[1];
-						in->win_mtime[1] = oh->win_mtime[1];
-#else
-						in->yst_uid = oh->yst_uid;
-						in->yst_gid = oh->yst_gid;
-						in->yst_atime = oh->yst_atime;
-						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) {
-					/* we need to load this info */
-
-					in->valid = 1;
-					in->chunkId = chunk;
-
-					if(oh) {
-						in->variantType = oh->type;
-
-						in->yst_mode = oh->yst_mode;
-#ifdef CONFIG_YAFFS_WINCE
-						in->win_atime[0] = oh->win_atime[0];
-						in->win_ctime[0] = oh->win_ctime[0];
-						in->win_mtime[0] = oh->win_mtime[0];
-						in->win_atime[1] = oh->win_atime[1];
-						in->win_ctime[1] = oh->win_ctime[1];
-						in->win_mtime[1] = oh->win_mtime[1];
-#else
-						in->yst_uid = oh->yst_uid;
-						in->yst_gid = oh->yst_gid;
-						in->yst_atime = oh->yst_atime;
-						in->yst_mtime = oh->yst_mtime;
-						in->yst_ctime = oh->yst_ctime;
-						in->yst_rdev = oh->yst_rdev;
-#endif
-
-						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);
-
-						 fileSize = oh->fileSize;
- 						 isShrink = oh->isShrink;
-						 equivalentObjectId = oh->equivalentObjectId;
-
-					}
-					else {
-						in->variantType = tags.extraObjectType;
-						parent =
-						    yaffs_FindOrCreateObjectByNumber
-					    		(dev, tags.extraParentObjectId,
-					     		 YAFFS_OBJECT_TYPE_DIRECTORY);
-						 fileSize = tags.extraFileLength;
-						 isShrink = tags.extraIsShrinkHeader;
-						 equivalentObjectId = tags.extraEquivalentObjectId;
-						in->lazyLoaded = 1;
-
-					}
-					in->dirty = 0;
-
-					/* directory stuff...
-					 * hook up to parent
-					 */
-
-					if (parent->variantType ==
-					    YAFFS_OBJECT_TYPE_UNKNOWN) {
-						/* Set up as a directory */
-						parent->variantType =
-						    YAFFS_OBJECT_TYPE_DIRECTORY;
-						INIT_LIST_HEAD(&parent->variant.
-							       directoryVariant.
-							       children);
-					} else if (parent->variantType !=
-						   YAFFS_OBJECT_TYPE_DIRECTORY)
-					{
-						/* Hoosterman, another problem....
-						 * We're trying to use a non-directory as a directory
-						 */
-
-						T(YAFFS_TRACE_ERROR,
-						  (TSTR
-						   ("yaffs tragedy: attempting to use non-directory as"
-						    " a directory in scan. Put in lost+found."
-						    TENDSTR)));
-						parent = dev->lostNFoundDir;
-					}
-
-					yaffs_AddObjectToDirectory(parent, in);
-
-					itsUnlinked = (parent == dev->deletedDir) ||
-						      (parent == dev->unlinkedDir);
-
-					if (isShrink) {
-						/* Mark the block as having a shrinkHeader */
-						bi->hasShrinkHeader = 1;
-					}
-
-					/* Note re hardlinks.
-					 * 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.
-					 */
-
-					switch (in->variantType) {
-					case YAFFS_OBJECT_TYPE_UNKNOWN:
-						/* Todo got a problem */
-						break;
-					case YAFFS_OBJECT_TYPE_FILE:
-
-						if (in->variant.fileVariant.
-						    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
-							 * than its current data extents.
-							 */
-							in->variant.fileVariant.fileSize = fileSize;
-							in->variant.fileVariant.scannedFileSize =
-							    in->variant.fileVariant.fileSize;
-						}
-
-						if (isShrink &&
-						    in->variant.fileVariant.shrinkSize > fileSize) {
-							in->variant.fileVariant.shrinkSize = fileSize;
-						}
-
-						break;
-					case YAFFS_OBJECT_TYPE_HARDLINK:
-						if(!itsUnlinked) {
-						  in->variant.hardLinkVariant.equivalentObjectId =
-						    equivalentObjectId;
-						  in->hardLinks.next =
-						    (struct list_head *) hardList;
-						  hardList = in;
-						}
-						break;
-					case YAFFS_OBJECT_TYPE_DIRECTORY:
-						/* Do nothing */
-						break;
-					case YAFFS_OBJECT_TYPE_SPECIAL:
-						/* Do nothing */
-						break;
-					case YAFFS_OBJECT_TYPE_SYMLINK:
-						if(oh){
-						   in->variant.symLinkVariant.alias =
-						    yaffs_CloneString(oh->
-								      alias);
-						   if(!in->variant.symLinkVariant.alias)
-						   	alloc_failed = 1;
-						}
-						break;
-					}
-
-				}
-
-			}
-
-		} /* End of scanning for each chunk */
-
-		if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) {
-			/* If we got this far while scanning, then the block is fully allocated. */
-			state = YAFFS_BLOCK_STATE_FULL;
-		}
-
-		bi->blockState = state;
-
-		/* Now let's see if it was dirty */
-		if (bi->pagesInUse == 0 &&
-		    !bi->hasShrinkHeader &&
-		    bi->blockState == YAFFS_BLOCK_STATE_FULL) {
-			yaffs_BlockBecameDirty(dev, blk);
-		}
-
-	}
-
-	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
-	 * hardlinks.
-	 */
-	yaffs_HardlinkFixup(dev,hardList);
-
-
-	/*
-	*  Sort out state of unlinked and deleted objects.
-	*/
-	{
-		struct list_head *i;
-		struct list_head *n;
-
-		yaffs_Object *l;
-
-		/* Soft delete all the unlinked files */
-		list_for_each_safe(i, n,
-				   &dev->unlinkedDir->variant.directoryVariant.
-				   children) {
-			if (i) {
-				l = list_entry(i, yaffs_Object, siblings);
-				yaffs_DestroyObject(l);
-			}
-		}
-
-		/* Soft delete all the deletedDir files */
-		list_for_each_safe(i, n,
-				   &dev->deletedDir->variant.directoryVariant.
-				   children) {
-			if (i) {
-				l = list_entry(i, yaffs_Object, siblings);
-				yaffs_DestroyObject(l);
-
-			}
-		}
-	}
-
-	yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__);
-
-	if(alloc_failed){
-		return YAFFS_FAIL;
-	}
-
-	T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR)));
-
-	return YAFFS_OK;
-}
-
-/*------------------------------  Directory Functions ----------------------------- */
-
-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;
-}
-
-
-static void yaffs_AddObjectToDirectory(yaffs_Object * directory,
-				       yaffs_Object * obj)
-{
-
-	if (!directory) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("tragedy: Trying to add an object to a null pointer directory"
-		    TENDSTR)));
-		YBUG();
-	}
-	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("tragedy: Trying to add an object to a non-directory"
-		    TENDSTR)));
-		YBUG();
-	}
-
-	if (obj->siblings.prev == NULL) {
-		/* Not initialised */
-		INIT_LIST_HEAD(&obj->siblings);
-
-	} else if (!list_empty(&obj->siblings)) {
-		/* If it is holed up somewhere else, un hook it */
-		yaffs_RemoveObjectFromDirectory(obj);
-	}
-	/* Now add it */
-	list_add(&obj->siblings, &directory->variant.directoryVariant.children);
-	obj->parent = directory;
-
-	if (directory == obj->myDev->unlinkedDir
-	    || directory == obj->myDev->deletedDir) {
-		obj->unlinked = 1;
-		obj->myDev->nUnlinkedFiles++;
-		obj->renameAllowed = 0;
-	}
-}
-
-yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory,
-				     const YCHAR * name)
-{
-	int sum;
-
-	struct list_head *i;
-	YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1];
-
-	yaffs_Object *l;
-
-	if (!name) {
-		return NULL;
-	}
-
-	if (!directory) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
-		    TENDSTR)));
-		YBUG();
-	}
-	if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR)));
-		YBUG();
-	}
-
-	sum = yaffs_CalcNameSum(name);
-
-	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 */
-			if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) {
-				if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) {
-					return l;
-				}
-			} else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0)
-			{
-				/* LostnFound cunk called Objxxx
-				 * Do a real check
-				 */
-				yaffs_GetObjectName(l, buffer,
-						    YAFFS_MAX_NAME_LENGTH);
-				if (yaffs_strncmp(name, buffer,YAFFS_MAX_NAME_LENGTH) == 0) {
-					return l;
-				}
-
-			}
-		}
-	}
-
-	return NULL;
-}
-
-
-#if 0
-int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir,
-				   int (*fn) (yaffs_Object *))
-{
-	struct list_head *i;
-	yaffs_Object *l;
-
-	if (!theDir) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("tragedy: yaffs_FindObjectByName: null pointer directory"
-		    TENDSTR)));
-		YBUG();
-	}
-	if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR)));
-		YBUG();
-	}
-
-	list_for_each(i, &theDir->variant.directoryVariant.children) {
-		if (i) {
-			l = list_entry(i, yaffs_Object, siblings);
-			if (l && !fn(l)) {
-				return YAFFS_FAIL;
-			}
-		}
-	}
-
-	return YAFFS_OK;
-
-}
-#endif
-
-/* GetEquivalentObject dereferences any hard links to get to the
- * actual object.
- */
-
-yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj)
-{
-	if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) {
-		/* We want the object id of the equivalent object, not this one */
-		obj = obj->variant.hardLinkVariant.equivalentObject;
-		yaffs_CheckObjectDetailsLoaded(obj);
-	}
-	return 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) {
-		yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1);
-	} else if (obj->chunkId <= 0) {
-		YCHAR locName[20];
-		/* make up a name */
-		yaffs_sprintf(locName, _Y("%s%d"), YAFFS_LOSTNFOUND_PREFIX,
-			      obj->objectId);
-		yaffs_strncpy(name, locName, buffSize - 1);
-
-	}
-#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM
-	else if (obj->shortName[0]) {
-		yaffs_strcpy(name, obj->shortName);
-	}
-#endif
-	else {
-		int result;
-		__u8 *buffer = yaffs_GetTempBuffer(obj->myDev, __LINE__);
-
-		yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *) buffer;
-
-		memset(buffer, 0, obj->myDev->nDataBytesPerChunk);
-
-		if (obj->chunkId >= 0) {
-			result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev,
-							obj->chunkId, buffer,
-							NULL);
-		}
-		yaffs_strncpy(name, oh->name, buffSize - 1);
-
-		yaffs_ReleaseTempBuffer(obj->myDev, buffer, __LINE__);
-	}
-
-	return yaffs_strlen(name);
-}
-
-int yaffs_GetObjectFileLength(yaffs_Object * obj)
-{
-
-	/* Dereference any hard linking */
-	obj = yaffs_GetEquivalentObject(obj);
-
-	if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) {
-		return obj->variant.fileVariant.fileSize;
-	}
-	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
-		return yaffs_strlen(obj->variant.symLinkVariant.alias);
-	} else {
-		/* Only a directory should drop through to here */
-		return obj->myDev->nDataBytesPerChunk;
-	}
-}
-
-int yaffs_GetObjectLinkCount(yaffs_Object * obj)
-{
-	int count = 0;
-	struct list_head *i;
-
-	if (!obj->unlinked) {
-		count++;	/* the object itself */
-	}
-	list_for_each(i, &obj->hardLinks) {
-		count++;	/* add the hard links; */
-	}
-	return count;
-
-}
-
-int yaffs_GetObjectInode(yaffs_Object * obj)
-{
-	obj = yaffs_GetEquivalentObject(obj);
-
-	return obj->objectId;
-}
-
-unsigned yaffs_GetObjectType(yaffs_Object * obj)
-{
-	obj = yaffs_GetEquivalentObject(obj);
-
-	switch (obj->variantType) {
-	case YAFFS_OBJECT_TYPE_FILE:
-		return DT_REG;
-		break;
-	case YAFFS_OBJECT_TYPE_DIRECTORY:
-		return DT_DIR;
-		break;
-	case YAFFS_OBJECT_TYPE_SYMLINK:
-		return DT_LNK;
-		break;
-	case YAFFS_OBJECT_TYPE_HARDLINK:
-		return DT_REG;
-		break;
-	case YAFFS_OBJECT_TYPE_SPECIAL:
-		if (S_ISFIFO(obj->yst_mode))
-			return DT_FIFO;
-		if (S_ISCHR(obj->yst_mode))
-			return DT_CHR;
-		if (S_ISBLK(obj->yst_mode))
-			return DT_BLK;
-		if (S_ISSOCK(obj->yst_mode))
-			return DT_SOCK;
-	default:
-		return DT_REG;
-		break;
-	}
-}
-
-YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj)
-{
-	obj = yaffs_GetEquivalentObject(obj);
-	if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) {
-		return yaffs_CloneString(obj->variant.symLinkVariant.alias);
-	} else {
-		return yaffs_CloneString(_Y(""));
-	}
-}
-
-#ifndef CONFIG_YAFFS_WINCE
-
-int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr)
-{
-	unsigned int valid = attr->ia_valid;
-
-	if (valid & ATTR_MODE)
-		obj->yst_mode = attr->ia_mode;
-	if (valid & ATTR_UID)
-		obj->yst_uid = attr->ia_uid;
-	if (valid & ATTR_GID)
-		obj->yst_gid = attr->ia_gid;
-
-	if (valid & ATTR_ATIME)
-		obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime);
-	if (valid & ATTR_CTIME)
-		obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime);
-	if (valid & ATTR_MTIME)
-		obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime);
-
-	if (valid & ATTR_SIZE)
-		yaffs_ResizeFile(obj, attr->ia_size);
-
-	yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0);
-
-	return YAFFS_OK;
-
-}
-int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr)
-{
-	unsigned int valid = 0;
-
-	attr->ia_mode = obj->yst_mode;
-	valid |= ATTR_MODE;
-	attr->ia_uid = obj->yst_uid;
-	valid |= ATTR_UID;
-	attr->ia_gid = obj->yst_gid;
-	valid |= ATTR_GID;
-
-	Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime;
-	valid |= ATTR_ATIME;
-	Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime;
-	valid |= ATTR_CTIME;
-	Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime;
-	valid |= ATTR_MTIME;
-
-	attr->ia_size = yaffs_GetFileSize(obj);
-	valid |= ATTR_SIZE;
-
-	attr->ia_valid = valid;
-
-	return YAFFS_OK;
-
-}
-
-#endif
-
-#if 0
-int yaffs_DumpObject(yaffs_Object * obj)
-{
-	YCHAR name[257];
-
-	yaffs_GetObjectName(obj, name, 256);
-
-	T(YAFFS_TRACE_ALWAYS,
-	  (TSTR
-	   ("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,
-	   yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj)));
-
-	return YAFFS_OK;
-}
-#endif
-
-/*---------------------------- Initialisation code -------------------------------------- */
-
-static int yaffs_CheckDevFunctions(const yaffs_Device * dev)
-{
-
-	/* Common functions, gotta have */
-	if (!dev->eraseBlockInNAND || !dev->initialiseNAND)
-		return 0;
-
-#ifdef CONFIG_YAFFS_YAFFS2
-
-	/* Can use the "with tags" style interface for yaffs1 or yaffs2 */
-	if (dev->writeChunkWithTagsToNAND &&
-	    dev->readChunkWithTagsFromNAND &&
-	    !dev->writeChunkToNAND &&
-	    !dev->readChunkFromNAND &&
-	    dev->markNANDBlockBad && dev->queryNANDBlock)
-		return 1;
-#endif
-
-	/* Can use the "spare" style interface for yaffs1 */
-	if (!dev->isYaffs2 &&
-	    !dev->writeChunkWithTagsToNAND &&
-	    !dev->readChunkWithTagsFromNAND &&
-	    dev->writeChunkToNAND &&
-	    dev->readChunkFromNAND &&
-	    !dev->markNANDBlockBad && !dev->queryNANDBlock)
-		return 1;
-
-	return 0;		/* bad */
-}
-
-
-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);
-
-	dev->rootDir =
-	    yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_ROOT,
-				      YAFFS_ROOT_MODE | S_IFDIR);
-	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;
-}
-
-int yaffs_GutsInitialise(yaffs_Device * dev)
-{
-	int init_failed = 0;
-	unsigned x;
-	int bits;
-
-	T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR)));
-
-	/* Check stuff that must be set */
-
-	if (!dev) {
-		T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Need a device" TENDSTR)));
-		return YAFFS_FAIL;
-	}
-
-	dev->internalStartBlock = dev->startBlock;
-	dev->internalEndBlock = dev->endBlock;
-	dev->blockOffset = 0;
-	dev->chunkOffset = 0;
-	dev->nFreeChunks = 0;
-
-	if (dev->startBlock == 0) {
-		dev->internalStartBlock = dev->startBlock + 1;
-		dev->internalEndBlock = dev->endBlock + 1;
-		dev->blockOffset = 1;
-		dev->chunkOffset = dev->nChunksPerBlock;
-	}
-
-	/* 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 ||
-	     dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2)	// otherwise it is too small
-	    ) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s "
-		    TENDSTR), dev->nDataBytesPerChunk, dev->isYaffs2 ? "2" : ""));
-		return YAFFS_FAIL;
-	}
-
-	if (yaffs_InitialiseNAND(dev) != YAFFS_OK) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR("yaffs: InitialiseNAND failed" TENDSTR)));
-		return YAFFS_FAIL;
-	}
-
-	/* Got the right mix of functions? */
-	if (!yaffs_CheckDevFunctions(dev)) {
-		/* Function missing */
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR
-		   ("yaffs: device function(s) missing or wrong\n" TENDSTR)));
-
-		return YAFFS_FAIL;
-	}
-
-	/* This is really a compilation check. */
-	if (!yaffs_CheckStructures()) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR("yaffs_CheckStructures failed\n" TENDSTR)));
-		return YAFFS_FAIL;
-	}
-
-	if (dev->isMounted) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR("yaffs: device already mounted\n" TENDSTR)));
-		return YAFFS_FAIL;
-	}
-
-	/* Finished with most checks. One or two more checks happen later on too. */
-
-	dev->isMounted = 1;
-
-
-
-	/* OK now calculate a few things for the device */
-
-	/*
-	 *  Calculate all the chunk size manipulation numbers:
-	 */
-	 /* Start off assuming it is a power of 2 */
-	 dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk);
-	 dev->chunkMask = (1<<dev->chunkShift) - 1;
-
-	 if(dev->nDataBytesPerChunk == (dev->chunkMask + 1)){
-	 	/* Yes it is a power of 2, disable crumbs */
-		dev->crumbMask = 0;
-		dev->crumbShift = 0;
-		dev->crumbsPerChunk = 0;
-	 } else {
-	 	/* Not a power of 2, use crumbs instead */
-		dev->crumbShift = ShiftDiv(sizeof(yaffs_PackedTags2TagsPart));
-		dev->crumbMask = (1<<dev->crumbShift)-1;
-		dev->crumbsPerChunk = dev->nDataBytesPerChunk/(1 << dev->crumbShift);
-		dev->chunkShift = 0;
-		dev->chunkMask = 0;
-	}
-
-
-	/*
-	 * Calculate chunkGroupBits.
-	 * We need to find the next power of 2 > than internalEndBlock
-	 */
-
-	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 */
-		if(bits & 1)
-			bits++;
-		if(bits < 16)
-			dev->tnodeWidth = 16;
-		else
-			dev->tnodeWidth = bits;
-	}
-	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;
-
-	if (dev->nChunksPerBlock < dev->chunkGroupSize) {
-		/* We have a problem because the soft delete won't work if
-		 * the chunk group size > chunks per block.
-		 * This can be remedied by using larger "virtual blocks".
-		 */
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR("yaffs: chunk group too large\n" TENDSTR)));
-
-		return YAFFS_FAIL;
-	}
-
-	/* OK, we've finished verifying the device, lets continue with initialisation */
-
-	/* More device initialisation */
-	dev->garbageCollections = 0;
-	dev->passiveGarbageCollections = 0;
-	dev->currentDirtyChecker = 0;
-	dev->bufferedBlock = -1;
-	dev->doingBufferedBlockRewrite = 0;
-	dev->nDeletedFiles = 0;
-	dev->nBackgroundDeletions = 0;
-	dev->nUnlinkedFiles = 0;
-	dev->eccFixed = 0;
-	dev->eccUnfixed = 0;
-	dev->tagsEccFixed = 0;
-	dev->tagsEccUnfixed = 0;
-	dev->nErasureFailures = 0;
-	dev->nErasedBlocks = 0;
-	dev->isDoingGC = 0;
-	dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */
-
-	/* 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;
-		__u8 *buf;
-		int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache);
-
-		if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) {
-			dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES;
-		}
-
-		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;
-			dev->srCache[i].dirty = 0;
-			dev->srCache[i].data = buf = YMALLOC_DMA(dev->nDataBytesPerChunk);
-		}
-		if(!buf)
-			init_failed = 1;
-
-		dev->srLastUse = 0;
-	}
-
-	dev->cacheHits = 0;
-
-	if(!init_failed){
-		dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32));
-		if(!dev->gcCleanupList)
-			init_failed = 1;
-	}
-
-	if (dev->isYaffs2) {
-		dev->useHeaderFileSize = 1;
-	}
-	if(!init_failed && !yaffs_InitialiseBlocks(dev))
-		init_failed = 1;
-
-	yaffs_InitialiseTnodes(dev);
-	yaffs_InitialiseObjects(dev);
-
-	if(!init_failed && !yaffs_CreateInitialDirectories(dev))
-		init_failed = 1;
-
-
-	if(!init_failed){
-		/* Now scan the flash. */
-		if (dev->isYaffs2) {
-			if(yaffs_CheckpointRestore(dev)) {
-				T(YAFFS_TRACE_ALWAYS,
-				  (TSTR("yaffs: restored from checkpoint" TENDSTR)));
-			} else {
-
-				/* 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;
-				dev->allocationPage = -1;
-				dev->nDeletedFiles = 0;
-				dev->nUnlinkedFiles = 0;
-				dev->nBackgroundDeletions = 0;
-				dev->oldestDirtySequence = 0;
-
-				if(!init_failed && !yaffs_InitialiseBlocks(dev))
-					init_failed = 1;
-
-				yaffs_InitialiseTnodes(dev);
-				yaffs_InitialiseObjects(dev);
-
-				if(!init_failed && !yaffs_CreateInitialDirectories(dev))
-					init_failed = 1;
-
-				if(!init_failed && !yaffs_ScanBackwards(dev))
-					init_failed = 1;
-			}
-		}else
-			if(!yaffs_Scan(dev))
-				init_failed = 1;
-	}
-
-	if(init_failed){
-		/* Clean up the mess */
-		T(YAFFS_TRACE_TRACING,
-		  (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR)));
-
-		yaffs_Deinitialise(dev);
-		return YAFFS_FAIL;
-	}
-
-	/* Zero out stats */
-	dev->nPageReads = 0;
-	dev->nPageWrites = 0;
-	dev->nBlockErasures = 0;
-	dev->nGCCopies = 0;
-	dev->nRetriedWrites = 0;
-
-	dev->nRetiredBlocks = 0;
-
-	yaffs_VerifyFreeChunks(dev);
-	yaffs_VerifyBlocks(dev);
-
-
-	T(YAFFS_TRACE_TRACING,
-	  (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR)));
-	return YAFFS_OK;
-
-}
-
-void yaffs_Deinitialise(yaffs_Device * dev)
-{
-	if (dev->isMounted) {
-		int i;
-
-		yaffs_DeinitialiseBlocks(dev);
-		yaffs_DeinitialiseTnodes(dev);
-		yaffs_DeinitialiseObjects(dev);
-		if (dev->nShortOpCaches > 0 &&
-		    dev->srCache) {
-
-			for (i = 0; i < dev->nShortOpCaches; i++) {
-				if(dev->srCache[i].data)
-					YFREE(dev->srCache[i].data);
-				dev->srCache[i].data = NULL;
-			}
-
-			YFREE(dev->srCache);
-			dev->srCache = NULL;
-		}
-
-		YFREE(dev->gcCleanupList);
-
-		for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) {
-			YFREE(dev->tempBuffer[i].buffer);
-		}
-
-		dev->isMounted = 0;
-	}
-
-}
-
-static int yaffs_CountFreeChunks(yaffs_Device * dev)
-{
-	int nFree;
-	int b;
-
-	yaffs_BlockInfo *blk;
-
-	for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock;
-	     b++) {
-		blk = yaffs_GetBlockInfo(dev, b);
-
-		switch (blk->blockState) {
-		case YAFFS_BLOCK_STATE_EMPTY:
-		case YAFFS_BLOCK_STATE_ALLOCATING:
-		case YAFFS_BLOCK_STATE_COLLECTING:
-		case YAFFS_BLOCK_STATE_FULL:
-			nFree +=
-			    (dev->nChunksPerBlock - blk->pagesInUse +
-			     blk->softDeletions);
-			break;
-		default:
-			break;
-		}
-
-	}
-
-	return nFree;
-}
-
-int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev)
-{
-	/* This is what we report to the outside world */
-
-	int nFree;
-	int nDirtyCacheChunks;
-	int blocksForCheckpoint;
-
-#if 1
-	nFree = dev->nFreeChunks;
-#else
-	nFree = yaffs_CountFreeChunks(dev);
-#endif
-
-	nFree += dev->nDeletedFiles;
-
-	/* Now count the number of dirty chunks in the cache and subtract those */
-
-	{
-		int i;
-		for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) {
-			if (dev->srCache[i].dirty)
-				nDirtyCacheChunks++;
-		}
-	}
-
-	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)
-		nFree = 0;
-
-	return nFree;
-
-}
-
-static int yaffs_freeVerificationFailures;
-
-static void yaffs_VerifyFreeChunks(yaffs_Device * dev)
-{
-	int counted;
-	int difference;
-
-	if(yaffs_SkipVerification(dev))
-		return;
-
-	counted = yaffs_CountFreeChunks(dev);
-
-	difference = dev->nFreeChunks - counted;
-
-	if (difference) {
-		T(YAFFS_TRACE_ALWAYS,
-		  (TSTR("Freechunks verification failure %d %d %d" TENDSTR),
-		   dev->nFreeChunks, counted, difference));
-		yaffs_freeVerificationFailures++;
-	}
-}
-
-/*---------------------------------------- YAFFS test code ----------------------*/
-
-#define yaffs_CheckStruct(structure,syze, name) \
-           if(sizeof(structure) != syze) \
-	       { \
-	         T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\
-		 name,syze,sizeof(structure))); \
-	         return YAFFS_FAIL; \
-		}
-
-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") */
-#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG
-	yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode")
-#endif
-	    yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader")
-
-	    return YAFFS_OK;
-}