From: Sheng Yong <shengyong@xxxxxxxx>
[ Upstream commit eb8fbaa53374e0a2d4381190abfe708481517bbb ]
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: 4c8ff7095bef ("f2fs: support data compression")
Signed-off-by: Sheng Yong <shengyong@xxxxxxxx>
Signed-off-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/f2fs/file.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index a05781e708d66..01b6295341918 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -3631,7 +3631,13 @@ 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;
}
@@ -3641,6 +3647,11 @@ 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;
--
2.43.0
