diff options
Diffstat (limited to 'fs/yaffs2/yaffs_checkptrw.c')
| -rw-r--r-- | fs/yaffs2/yaffs_checkptrw.c | 525 |
1 files changed, 264 insertions, 261 deletions
diff --git a/fs/yaffs2/yaffs_checkptrw.c b/fs/yaffs2/yaffs_checkptrw.c index 230f78f..997a618 100644 --- a/fs/yaffs2/yaffs_checkptrw.c +++ b/fs/yaffs2/yaffs_checkptrw.c @@ -1,7 +1,7 @@ /* * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. * - * Copyright (C) 2002-2007 Aleph One Ltd. + * Copyright (C) 2002-2011 Aleph One Ltd. * for Toby Churchill Ltd and Brightstar Engineering * * Created by Charles Manning <charles@aleph1.co.uk> @@ -11,395 +11,398 @@ * published by the Free Software Foundation. */ -/* XXX U-BOOT XXX */ -#include <common.h> -#include <malloc.h> - -const char *yaffs_checkptrw_c_version = - "$Id: yaffs_checkptrw.c,v 1.14 2007/05/15 20:07:40 charles Exp $"; - - #include "yaffs_checkptrw.h" +#include "yaffs_getblockinfo.h" - -static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) +static int yaffs2_checkpt_space_ok(struct yaffs_dev *dev) { + int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks; - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "checkpt blocks_avail = %d", blocks_avail); - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("checkpt blocks available = %d" TENDSTR), - blocksAvailable)); - - - return (blocksAvailable <= 0) ? 0 : 1; + return (blocks_avail <= 0) ? 0 : 1; } - -static int yaffs_CheckpointErase(yaffs_Device *dev) +static int yaffs_checkpt_erase(struct yaffs_dev *dev) { - int i; - - if(!dev->eraseBlockInNAND) + if (!dev->param.erase_fn) return 0; - T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR), - dev->internalStartBlock,dev->internalEndBlock)); - - for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); - if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i)); - if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){ - bi->blockState = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; - } - else { - dev->markNANDBlockBad(dev,i); - bi->blockState = YAFFS_BLOCK_STATE_DEAD; + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "checking blocks %d to %d", + dev->internal_start_block, dev->internal_end_block); + + for (i = dev->internal_start_block; i <= dev->internal_end_block; i++) { + struct yaffs_block_info *bi = yaffs_get_block_info(dev, i); + if (bi->block_state == YAFFS_BLOCK_STATE_CHECKPOINT) { + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "erasing checkpt block %d", i); + + dev->n_erasures++; + + if (dev->param. + erase_fn(dev, + i - dev->block_offset /* realign */)) { + bi->block_state = YAFFS_BLOCK_STATE_EMPTY; + dev->n_erased_blocks++; + dev->n_free_chunks += + dev->param.chunks_per_block; + } else { + dev->param.bad_block_fn(dev, i); + bi->block_state = YAFFS_BLOCK_STATE_DEAD; } } } - dev->blocksInCheckpoint = 0; + dev->blocks_in_checkpt = 0; return 1; } - -static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev) +static void yaffs2_checkpt_find_erased_block(struct yaffs_dev *dev) { - int i; - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), - dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock)); - - if(dev->checkpointNextBlock >= 0 && - dev->checkpointNextBlock <= dev->internalEndBlock && - blocksAvailable > 0){ - - for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); - if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){ - dev->checkpointNextBlock = i + 1; - dev->checkpointCurrentBlock = i; - T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i)); + int i; + int blocks_avail = dev->n_erased_blocks - dev->param.n_reserved_blocks; + + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "allocating checkpt block: erased %d reserved %d avail %d next %d ", + dev->n_erased_blocks, dev->param.n_reserved_blocks, + blocks_avail, dev->checkpt_next_block); + + if (dev->checkpt_next_block >= 0 && + dev->checkpt_next_block <= dev->internal_end_block && + blocks_avail > 0) { + + for (i = dev->checkpt_next_block; i <= dev->internal_end_block; + i++) { + struct yaffs_block_info *bi = + yaffs_get_block_info(dev, i); + if (bi->block_state == YAFFS_BLOCK_STATE_EMPTY) { + dev->checkpt_next_block = i + 1; + dev->checkpt_cur_block = i; + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "allocating checkpt block %d", i); return; } } } - T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR))); + yaffs_trace(YAFFS_TRACE_CHECKPOINT, "out of checkpt blocks"); - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; + dev->checkpt_next_block = -1; + dev->checkpt_cur_block = -1; } -static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev) +static void yaffs2_checkpt_find_block(struct yaffs_dev *dev) { - int i; - yaffs_ExtendedTags tags; - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), - dev->blocksInCheckpoint, dev->checkpointNextBlock)); - - if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks) - for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ - int chunk = i * dev->nChunksPerBlock; - int realignedChunk = chunk - dev->chunkOffset; - - dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags); - T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), - i, tags.objectId,tags.sequenceNumber,tags.eccResult)); - - if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){ + int i; + struct yaffs_ext_tags tags; + + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "find next checkpt block: start: blocks %d next %d", + dev->blocks_in_checkpt, dev->checkpt_next_block); + + if (dev->blocks_in_checkpt < dev->checkpt_max_blocks) + for (i = dev->checkpt_next_block; i <= dev->internal_end_block; + i++) { + int chunk = i * dev->param.chunks_per_block; + int realigned_chunk = chunk - dev->chunk_offset; + + dev->param.read_chunk_tags_fn(dev, realigned_chunk, + NULL, &tags); + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "find next checkpt block: search: block %d oid %d seq %d eccr %d", + i, tags.obj_id, tags.seq_number, + tags.ecc_result); + + if (tags.seq_number == YAFFS_SEQUENCE_CHECKPOINT_DATA) { /* Right kind of block */ - dev->checkpointNextBlock = tags.objectId; - dev->checkpointCurrentBlock = i; - dev->checkpointBlockList[dev->blocksInCheckpoint] = i; - dev->blocksInCheckpoint++; - T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i)); + dev->checkpt_next_block = tags.obj_id; + dev->checkpt_cur_block = i; + dev->checkpt_block_list[dev-> + blocks_in_checkpt] = i; + dev->blocks_in_checkpt++; + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "found checkpt block %d", i); return; } } - T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR))); + yaffs_trace(YAFFS_TRACE_CHECKPOINT, "found no more checkpt blocks"); - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; + dev->checkpt_next_block = -1; + dev->checkpt_cur_block = -1; } - -int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) +int yaffs2_checkpt_open(struct yaffs_dev *dev, int writing) { + int i; + + dev->checkpt_open_write = writing; /* Got the functions we need? */ - if (!dev->writeChunkWithTagsToNAND || - !dev->readChunkWithTagsFromNAND || - !dev->eraseBlockInNAND || - !dev->markNANDBlockBad) + if (!dev->param.write_chunk_tags_fn || + !dev->param.read_chunk_tags_fn || + !dev->param.erase_fn || !dev->param.bad_block_fn) return 0; - if(forWriting && !yaffs_CheckpointSpaceOk(dev)) + if (writing && !yaffs2_checkpt_space_ok(dev)) return 0; - if(!dev->checkpointBuffer) - dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk); - if(!dev->checkpointBuffer) + if (!dev->checkpt_buffer) + dev->checkpt_buffer = + kmalloc(dev->param.total_bytes_per_chunk, GFP_NOFS); + if (!dev->checkpt_buffer) return 0; - - dev->checkpointPageSequence = 0; - - dev->checkpointOpenForWrite = forWriting; - - dev->checkpointByteCount = 0; - dev->checkpointSum = 0; - dev->checkpointXor = 0; - dev->checkpointCurrentBlock = -1; - dev->checkpointCurrentChunk = -1; - dev->checkpointNextBlock = dev->internalStartBlock; + dev->checkpt_page_seq = 0; + dev->checkpt_byte_count = 0; + dev->checkpt_sum = 0; + dev->checkpt_xor = 0; + dev->checkpt_cur_block = -1; + dev->checkpt_cur_chunk = -1; + dev->checkpt_next_block = dev->internal_start_block; /* Erase all the blocks in the checkpoint area */ - if(forWriting){ - memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); - dev->checkpointByteOffset = 0; - return yaffs_CheckpointErase(dev); + if (writing) { + memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); + dev->checkpt_byte_offs = 0; + return yaffs_checkpt_erase(dev); + } + /* Set to a value that will kick off a read */ + dev->checkpt_byte_offs = dev->data_bytes_per_chunk; + /* A checkpoint block list of 1 checkpoint block per 16 block is + * (hopefully) going to be way more than we need */ + dev->blocks_in_checkpt = 0; + dev->checkpt_max_blocks = + (dev->internal_end_block - dev->internal_start_block) / 16 + 2; + dev->checkpt_block_list = + kmalloc(sizeof(int) * dev->checkpt_max_blocks, GFP_NOFS); + + if (!dev->checkpt_block_list) + return 0; - } else { - int i; - /* Set to a value that will kick off a read */ - dev->checkpointByteOffset = dev->nDataBytesPerChunk; - /* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully) - * going to be way more than we need */ - dev->blocksInCheckpoint = 0; - dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; - dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); - for(i = 0; i < dev->checkpointMaxBlocks; i++) - dev->checkpointBlockList[i] = -1; - } + for (i = 0; i < dev->checkpt_max_blocks; i++) + dev->checkpt_block_list[i] = -1; return 1; } -int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum) +int yaffs2_get_checkpt_sum(struct yaffs_dev *dev, u32 * sum) { - __u32 compositeSum; - compositeSum = (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF); - *sum = compositeSum; + u32 composite_sum; + + composite_sum = (dev->checkpt_sum << 8) | (dev->checkpt_xor & 0xff); + *sum = composite_sum; return 1; } -static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) +static int yaffs2_checkpt_flush_buffer(struct yaffs_dev *dev) { - int chunk; - int realignedChunk; - - yaffs_ExtendedTags tags; + int realigned_chunk; + struct yaffs_ext_tags tags; - if(dev->checkpointCurrentBlock < 0){ - yaffs_CheckpointFindNextErasedBlock(dev); - dev->checkpointCurrentChunk = 0; + if (dev->checkpt_cur_block < 0) { + yaffs2_checkpt_find_erased_block(dev); + dev->checkpt_cur_chunk = 0; } - if(dev->checkpointCurrentBlock < 0) + if (dev->checkpt_cur_block < 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){ + tags.is_deleted = 0; + tags.obj_id = dev->checkpt_next_block; /* Hint to next place to look */ + tags.chunk_id = dev->checkpt_page_seq + 1; + tags.seq_number = YAFFS_SEQUENCE_CHECKPOINT_DATA; + tags.n_bytes = dev->data_bytes_per_chunk; + if (dev->checkpt_cur_chunk == 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++; + struct yaffs_block_info *bi = + yaffs_get_block_info(dev, dev->checkpt_cur_block); + bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; + dev->blocks_in_checkpt++; } - chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; + chunk = + dev->checkpt_cur_block * dev->param.chunks_per_block + + dev->checkpt_cur_chunk; + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "checkpoint wite buffer nand %d(%d:%d) objid %d chId %d", + chunk, dev->checkpt_cur_block, dev->checkpt_cur_chunk, + tags.obj_id, tags.chunk_id); - 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)); + realigned_chunk = chunk - dev->chunk_offset; - realignedChunk = chunk - dev->chunkOffset; + dev->n_page_writes++; - 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; + dev->param.write_chunk_tags_fn(dev, realigned_chunk, + dev->checkpt_buffer, &tags); + dev->checkpt_byte_offs = 0; + dev->checkpt_page_seq++; + dev->checkpt_cur_chunk++; + if (dev->checkpt_cur_chunk >= dev->param.chunks_per_block) { + dev->checkpt_cur_chunk = 0; + dev->checkpt_cur_block = -1; } - memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); + memset(dev->checkpt_buffer, 0, dev->data_bytes_per_chunk); return 1; } - -int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes) +int yaffs2_checkpt_wr(struct yaffs_dev *dev, const void *data, int n_bytes) { - int i=0; + int i = 0; int ok = 1; + u8 *data_bytes = (u8 *) data; - - __u8 * dataBytes = (__u8 *)data; - - - - if(!dev->checkpointBuffer) + if (!dev->checkpt_buffer) return 0; - if(!dev->checkpointOpenForWrite) + if (!dev->checkpt_open_write) return -1; - while(i < nBytes && ok) { - - - - dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; + while (i < n_bytes && ok) { + dev->checkpt_buffer[dev->checkpt_byte_offs] = *data_bytes; + dev->checkpt_sum += *data_bytes; + dev->checkpt_xor ^= *data_bytes; - dev->checkpointByteOffset++; + dev->checkpt_byte_offs++; i++; - dataBytes++; - dev->checkpointByteCount++; - - - if(dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) - ok = yaffs_CheckpointFlushBuffer(dev); + data_bytes++; + dev->checkpt_byte_count++; + if (dev->checkpt_byte_offs < 0 || + dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) + ok = yaffs2_checkpt_flush_buffer(dev); } - return i; + return i; } -int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) +int yaffs2_checkpt_rd(struct yaffs_dev *dev, void *data, int n_bytes) { - int i=0; + int i = 0; int ok = 1; - yaffs_ExtendedTags tags; - - + struct yaffs_ext_tags tags; int chunk; - int realignedChunk; + int realigned_chunk; + u8 *data_bytes = (u8 *) data; - __u8 *dataBytes = (__u8 *)data; - - if(!dev->checkpointBuffer) + if (!dev->checkpt_buffer) return 0; - if(dev->checkpointOpenForWrite) + if (dev->checkpt_open_write) return -1; - while(i < nBytes && ok) { - + while (i < n_bytes && ok) { - if(dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { + if (dev->checkpt_byte_offs < 0 || + dev->checkpt_byte_offs >= dev->data_bytes_per_chunk) { - if(dev->checkpointCurrentBlock < 0){ - yaffs_CheckpointFindNextCheckpointBlock(dev); - dev->checkpointCurrentChunk = 0; + if (dev->checkpt_cur_block < 0) { + yaffs2_checkpt_find_block(dev); + dev->checkpt_cur_chunk = 0; } - if(dev->checkpointCurrentBlock < 0) + if (dev->checkpt_cur_block < 0) { ok = 0; - else { + break; + } - chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + - dev->checkpointCurrentChunk; + chunk = dev->checkpt_cur_block * + dev->param.chunks_per_block + + dev->checkpt_cur_chunk; - realignedChunk = chunk - dev->chunkOffset; + realigned_chunk = chunk - dev->chunk_offset; + dev->n_page_reads++; - /* read in the next chunk */ - /* printf("read checkpoint page %d\n",dev->checkpointPage); */ - dev->readChunkWithTagsFromNAND(dev, realignedChunk, - dev->checkpointBuffer, - &tags); + /* read in the next chunk */ + dev->param.read_chunk_tags_fn(dev, + realigned_chunk, + dev->checkpt_buffer, + &tags); - if(tags.chunkId != (dev->checkpointPageSequence + 1) || - tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) - ok = 0; + if (tags.chunk_id != (dev->checkpt_page_seq + 1) || + tags.ecc_result > YAFFS_ECC_RESULT_FIXED || + tags.seq_number != YAFFS_SEQUENCE_CHECKPOINT_DATA) { + ok = 0; + break; + } - dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; - dev->checkpointCurrentChunk++; + dev->checkpt_byte_offs = 0; + dev->checkpt_page_seq++; + dev->checkpt_cur_chunk++; - if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock) - dev->checkpointCurrentBlock = -1; - } + if (dev->checkpt_cur_chunk >= + dev->param.chunks_per_block) + dev->checkpt_cur_block = -1; } - if(ok){ - *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; - dev->checkpointByteOffset++; - i++; - dataBytes++; - dev->checkpointByteCount++; - } + *data_bytes = dev->checkpt_buffer[dev->checkpt_byte_offs]; + dev->checkpt_sum += *data_bytes; + dev->checkpt_xor ^= *data_bytes; + dev->checkpt_byte_offs++; + i++; + data_bytes++; + dev->checkpt_byte_count++; } - return i; + return i; } -int yaffs_CheckpointClose(yaffs_Device *dev) +int yaffs_checkpt_close(struct yaffs_dev *dev) { + int i; - if(dev->checkpointOpenForWrite){ - if(dev->checkpointByteOffset != 0) - yaffs_CheckpointFlushBuffer(dev); - } else { - int i; - for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]); - if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY) - bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; - else { - // Todo this looks odd... - } + if (dev->checkpt_open_write) { + if (dev->checkpt_byte_offs != 0) + yaffs2_checkpt_flush_buffer(dev); + } else if (dev->checkpt_block_list) { + for (i = 0; + i < dev->blocks_in_checkpt && + dev->checkpt_block_list[i] >= 0; i++) { + int blk = dev->checkpt_block_list[i]; + struct yaffs_block_info *bi = NULL; + + if (dev->internal_start_block <= blk && + blk <= dev->internal_end_block) + bi = yaffs_get_block_info(dev, blk); + if (bi && bi->block_state == YAFFS_BLOCK_STATE_EMPTY) + bi->block_state = YAFFS_BLOCK_STATE_CHECKPOINT; } - YFREE(dev->checkpointBlockList); - dev->checkpointBlockList = NULL; + kfree(dev->checkpt_block_list); + dev->checkpt_block_list = NULL; } - dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock; - dev->nErasedBlocks -= dev->blocksInCheckpoint; + dev->n_free_chunks -= + dev->blocks_in_checkpt * dev->param.chunks_per_block; + dev->n_erased_blocks -= dev->blocks_in_checkpt; + yaffs_trace(YAFFS_TRACE_CHECKPOINT, "checkpoint byte count %d", + dev->checkpt_byte_count); - T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR), - dev->checkpointByteCount)); - - if(dev->checkpointBuffer){ + if (dev->checkpt_buffer) { /* free the buffer */ - YFREE(dev->checkpointBuffer); - dev->checkpointBuffer = NULL; + kfree(dev->checkpt_buffer); + dev->checkpt_buffer = NULL; return 1; - } - else + } else { return 0; - + } } -int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) +int yaffs2_checkpt_invalidate_stream(struct yaffs_dev *dev) { - /* Erase the first checksum block */ - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR))); + /* Erase the checkpoint data */ - if(!yaffs_CheckpointSpaceOk(dev)) - return 0; + yaffs_trace(YAFFS_TRACE_CHECKPOINT, + "checkpoint invalidate of %d blocks", + dev->blocks_in_checkpt); - return yaffs_CheckpointErase(dev); + return yaffs_checkpt_erase(dev); } |