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f2fs: compress: fix to check unreleased compressed cluster 

[ Upstream commit eb8fbaa533 ]

Compressed cluster may not be released due to we can fail in
release_compress_blocks(), fix to handle reserved compressed
cluster correctly in reserve_compress_blocks().

Fixes: 4c8ff7095b ("f2fs: support data compression")
Signed-off-by: Sheng Yong <shengyong@oppo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sheng Yong 2024-01-13 03:41:29 +08:00 committed by Sasha Levin
parent bdd895e019
commit 6370d070e2
1 changed files with 12 additions and 1 deletions
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13
fs/f2fs/file.c
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@ -3663,7 +3663,13 @@ static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
goto next;
}
if (__is_valid_data_blkaddr(blkaddr)) {
/*
* compressed cluster was not released due to it
* fails in release_compress_blocks(), so NEW_ADDR
* is a possible case.
*/
if (blkaddr == NEW_ADDR ||
__is_valid_data_blkaddr(blkaddr)) {
compr_blocks++;
continue;
}
@ -3673,6 +3679,11 @@ static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
}
reserved = cluster_size - compr_blocks;
/* for the case all blocks in cluster were reserved */
if (reserved == 1)
goto next;
ret = inc_valid_block_count(sbi, dn->inode, &reserved);
if (ret)
return ret;