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[kernel] generic-2.6: sync yaffs code with the official CVS tree
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11378 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
@@ -90,7 +90,7 @@
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#define YAFFS_MAX_SHORT_OP_CACHES 20
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#define YAFFS_N_TEMP_BUFFERS 4
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#define YAFFS_N_TEMP_BUFFERS 6
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/* We limit the number attempts at sucessfully saving a chunk of data.
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* Small-page devices have 32 pages per block; large-page devices have 64.
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@@ -277,7 +277,7 @@ typedef struct {
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int softDeletions:10; /* number of soft deleted pages */
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int pagesInUse:10; /* number of pages in use */
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yaffs_BlockState blockState:4; /* One of the above block states */
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unsigned blockState:4; /* One of the above block states. NB use unsigned because enum is sometimes an int */
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__u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */
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/* and retire the block. */
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__u32 skipErasedCheck: 1; /* If this is set we can skip the erased check on this block */
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@@ -303,7 +303,7 @@ typedef struct {
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__u16 sum__NoLongerUsed; /* checksum of name. No longer used */
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YCHAR name[YAFFS_MAX_NAME_LENGTH + 1];
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/* Thes following apply to directories, files, symlinks - not hard links */
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/* The following apply to directories, files, symlinks - not hard links */
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__u32 yst_mode; /* protection */
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#ifdef CONFIG_YAFFS_WINCE
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@@ -331,11 +331,14 @@ typedef struct {
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__u32 win_ctime[2];
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__u32 win_atime[2];
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__u32 win_mtime[2];
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__u32 roomToGrow[4];
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#else
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__u32 roomToGrow[10];
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#endif
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__u32 roomToGrow[6];
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#endif
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__u32 inbandShadowsObject;
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__u32 inbandIsShrink;
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__u32 reservedSpace[2];
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int shadowsObject; /* This object header shadows the specified object if > 0 */
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/* isShrink applies to object headers written when we shrink the file (ie resize) */
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@@ -381,7 +384,7 @@ typedef struct {
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} yaffs_FileStructure;
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typedef struct {
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struct list_head children; /* list of child links */
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struct ylist_head children; /* list of child links */
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} yaffs_DirectoryStructure;
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typedef struct {
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@@ -424,14 +427,14 @@ struct yaffs_ObjectStruct {
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struct yaffs_DeviceStruct *myDev; /* The device I'm on */
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struct list_head hashLink; /* list of objects in this hash bucket */
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struct ylist_head hashLink; /* list of objects in this hash bucket */
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struct list_head hardLinks; /* all the equivalent hard linked objects */
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struct ylist_head hardLinks; /* all the equivalent hard linked objects */
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/* directory structure stuff */
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/* also used for linking up the free list */
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struct yaffs_ObjectStruct *parent;
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struct list_head siblings;
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struct ylist_head siblings;
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/* Where's my object header in NAND? */
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int chunkId;
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@@ -485,7 +488,7 @@ struct yaffs_ObjectList_struct {
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typedef struct yaffs_ObjectList_struct yaffs_ObjectList;
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typedef struct {
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struct list_head list;
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struct ylist_head list;
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int count;
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} yaffs_ObjectBucket;
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@@ -528,7 +531,7 @@ typedef struct {
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/*----------------- Device ---------------------------------*/
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struct yaffs_DeviceStruct {
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struct list_head devList;
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struct ylist_head devList;
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const char *name;
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/* Entry parameters set up way early. Yaffs sets up the rest.*/
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@@ -544,7 +547,7 @@ struct yaffs_DeviceStruct {
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/* Stuff used by the shared space checkpointing mechanism */
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/* If this value is zero, then this mechanism is disabled */
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int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */
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// int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */
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@@ -583,7 +586,7 @@ struct yaffs_DeviceStruct {
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yaffs_ExtendedTags * tags);
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int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo);
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int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo,
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yaffs_BlockState * state, int *sequenceNumber);
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yaffs_BlockState * state, __u32 *sequenceNumber);
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#endif
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int isYaffs2;
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@@ -598,7 +601,8 @@ struct yaffs_DeviceStruct {
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void (*markSuperBlockDirty)(void * superblock);
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int wideTnodesDisabled; /* Set to disable wide tnodes */
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YCHAR *pathDividers; /* String of legal path dividers */
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/* End of stuff that must be set before initialisation. */
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@@ -615,16 +619,14 @@ struct yaffs_DeviceStruct {
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__u32 tnodeWidth;
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__u32 tnodeMask;
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/* Stuff to support various file offses to chunk/offset translations */
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/* "Crumbs" for nDataBytesPerChunk not being a power of 2 */
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__u32 crumbMask;
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__u32 crumbShift;
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__u32 crumbsPerChunk;
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/* Straight shifting for nDataBytesPerChunk being a power of 2 */
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__u32 chunkShift;
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__u32 chunkMask;
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/* Stuff for figuring out file offset to chunk conversions */
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__u32 chunkShift; /* Shift value */
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__u32 chunkDiv; /* Divisor after shifting: 1 for power-of-2 sizes */
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__u32 chunkMask; /* Mask to use for power-of-2 case */
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/* Stuff to handle inband tags */
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int inbandTags;
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__u32 totalBytesPerChunk;
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#ifdef __KERNEL__
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@@ -663,6 +665,8 @@ struct yaffs_DeviceStruct {
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__u32 checkpointSum;
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__u32 checkpointXor;
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int nCheckpointBlocksRequired; /* Number of blocks needed to store current checkpoint set */
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/* Block Info */
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yaffs_BlockInfo *blockInfo;
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__u8 *chunkBits; /* bitmap of chunks in use */
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@@ -744,9 +748,11 @@ struct yaffs_DeviceStruct {
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int nUnlinkedFiles; /* Count of unlinked files. */
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int nBackgroundDeletions; /* Count of background deletions. */
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/* Temporary buffer management */
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yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS];
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int maxTemp;
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int tempInUse;
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int unmanagedTempAllocations;
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int unmanagedTempDeallocations;
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@@ -758,7 +764,7 @@ struct yaffs_DeviceStruct {
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typedef struct yaffs_DeviceStruct yaffs_Device;
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/* The static layout of bllock usage etc is stored in the super block header */
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/* The static layout of block usage etc is stored in the super block header */
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typedef struct {
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int StructType;
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int version;
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@@ -797,18 +803,6 @@ typedef struct {
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__u32 head;
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} yaffs_CheckpointValidity;
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/* Function to manipulate block info */
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static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk)
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{
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if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) {
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T(YAFFS_TRACE_ERROR,
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(TSTR
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("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR),
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blk));
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YBUG();
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}
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return &dev->blockInfo[blk - dev->internalStartBlock];
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}
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/*----------------------- YAFFS Functions -----------------------*/
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@@ -899,4 +893,7 @@ void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn);
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int yaffs_CheckFF(__u8 * buffer, int nBytes);
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void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi);
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__u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo);
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void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, int lineNo);
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#endif
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