If inc_valid_block_count() can not allocate all requested blocks,
it needs to release block count in .total_valid_block_count and
resevation blocks in inode.
Fixes: 54607494875e ("f2fs: compress: fix to avoid inconsistence bewteen
i_blocks and dnode")
Signed-off-by: Chao Yu <c...@kernel.org>
---
fs/f2fs/f2fs.h | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index c876813b5532..95a40d4f778f 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2309,7 +2309,7 @@ static inline void f2fs_i_blocks_write(struct inode *,
block_t, bool, bool);
static inline int inc_valid_block_count(struct f2fs_sb_info *sbi,
struct inode *inode, blkcnt_t *count, bool
partial)
{
- blkcnt_t diff = 0, release = 0;
+ long long diff = 0, release = 0;
block_t avail_user_block_count;
int ret;
@@ -2329,26 +2329,27 @@ static inline int inc_valid_block_count(struct
f2fs_sb_info *sbi,
percpu_counter_add(&sbi->alloc_valid_block_count, (*count));
spin_lock(&sbi->stat_lock);
- sbi->total_valid_block_count += (block_t)(*count);
- avail_user_block_count = get_available_block_count(sbi, inode, true);
- if (unlikely(sbi->total_valid_block_count > avail_user_block_count)) {
+ avail_user_block_count = get_available_block_count(sbi, inode, true);
+ diff = (long long)sbi->total_valid_block_count + *count -
+ avail_user_block_count;
+ if (unlikely(diff > 0)) {
if (!partial) {
spin_unlock(&sbi->stat_lock);
+ release = *count;
goto enospc;
}
-
- diff = sbi->total_valid_block_count - avail_user_block_count;
if (diff > *count)
diff = *count;
*count -= diff;
release = diff;
- sbi->total_valid_block_count -= diff;
if (!*count) {
spin_unlock(&sbi->stat_lock);
goto enospc;
}
}
+ sbi->total_valid_block_count += (block_t)(*count);
+
spin_unlock(&sbi->stat_lock);
if (unlikely(release)) {
--
2.40.1
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