static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
{
int chunk;
yaffs_ExtendedTags tags;
if(dev->checkpointCurrentBlock < 0){
yaffs_CheckpointFindNextErasedBlock(dev);
dev->checkpointCurrentChunk = 0;
}
if(dev->checkpointCurrentBlock < 0)
return 0;
tags.chunkDeleted = 0;
tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */
tags.chunkId = dev->checkpointPageSequence + 1;
tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA;
tags.byteCount = dev->nBytesPerChunk;
chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
dev->writeChunkWithTagsToNAND(dev,chunk,dev->checkpointBuffer,&tags);
dev->checkpointByteOffset = 0;
dev->checkpointPageSequence++;
dev->checkpointCurrentChunk++;
if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){
dev->checkpointCurrentChunk = 0;
dev->checkpointCurrentBlock = -1;
}
memset(dev->checkpointBuffer,0,dev->nBytesPerChunk);
return 1;
}
static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
{
int chunk;
int realignedChunk;
yaffs_ExtendedTags tags;
if (dev->checkpointCurrentBlock < 0) {
yaffs_CheckpointFindNextErasedBlock(dev);
dev->checkpointCurrentChunk = 0;
}
if (dev->checkpointCurrentBlock < 0)
return 0;
tags.chunkDeleted = 0;
tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */
tags.chunkId = dev->checkpointPageSequence + 1;
tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA;
tags.byteCount = dev->nDataBytesPerChunk;
if (dev->checkpointCurrentChunk == 0) {
/* First chunk we write for the block? Set block state to
checkpoint */
yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, dev->checkpointCurrentBlock);
bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
dev->blocksInCheckpoint++;
}
chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
T(YAFFS_TRACE_CHECKPOINT, (TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk, tags.objectId, tags.chunkId));
realignedChunk = chunk - dev->chunkOffset;
dev->nPageWrites++;
dev->writeChunkWithTagsToNAND(dev, realignedChunk,
dev->checkpointBuffer, &tags);
dev->checkpointByteOffset = 0;
dev->checkpointPageSequence++;
dev->checkpointCurrentChunk++;
if (dev->checkpointCurrentChunk >= dev->nChunksPerBlock) {
dev->checkpointCurrentChunk = 0;
dev->checkpointCurrentBlock = -1;
}
memset(dev->checkpointBuffer, 0, dev->nDataBytesPerChunk);
return 1;
}
static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
{
int chunk;
yaffs_ExtendedTags tags;
if(dev->checkpointCurrentBlock < 0){
yaffs_CheckpointFindNextErasedBlock(dev);
dev->checkpointCurrentChunk = 0;
}
if(dev->checkpointCurrentBlock < 0)
return 0;
tags.chunkDeleted = 0;
tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */
tags.chunkId = dev->checkpointPageSequence + 1;
tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA;
tags.byteCount = dev->nDataBytesPerChunk;
if(dev->checkpointCurrentChunk == 0){
/* First chunk we write for the block? Set block state to
checkpoint */
yaffs_BlockInfo *bi = &dev->blockInfo[dev->checkpointCurrentBlock];
bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
dev->blocksInCheckpoint++;
}
chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
dev->writeChunkWithTagsToNAND(dev,chunk,dev->checkpointBuffer,&tags);
dev->checkpointByteOffset = 0;
dev->checkpointPageSequence++;
dev->checkpointCurrentChunk++;
if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){
dev->checkpointCurrentChunk = 0;
dev->checkpointCurrentBlock = -1;
}
memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk);
return 1;
}