From: Chao Yu yuchao0@huawei.com
[ Upstream commit 9ea2f0be6ceaebae1518a5f897cff2645830dd95 ]
If FAULT_BLOCK type error injection is on, in inc_valid_block_count() we may decrease sbi->alloc_valid_block_count percpu stat count incorrectly, fix it.
Fixes: 36b877af7992 ("f2fs: Keep alloc_valid_block_count in sync") Signed-off-by: Chao Yu yuchao0@huawei.com Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/f2fs/f2fs.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 72d154e71bb56..6b5b685af5990 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1701,7 +1701,7 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi, if (time_to_inject(sbi, FAULT_BLOCK)) { f2fs_show_injection_info(FAULT_BLOCK); release = *count; - goto enospc; + goto release_quota; }
/* @@ -1741,6 +1741,7 @@ static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
enospc: percpu_counter_sub(&sbi->alloc_valid_block_count, release); +release_quota: dquot_release_reservation_block(inode, release); return -ENOSPC; }