This is a note to let you know that I've just added the patch titled
f2fs: compress: relocate some judgments in f2fs_reserve_compress_blocks
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
f2fs-compress-relocate-some-judgments-in-f2fs_reserv.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 736fec6dde055a4ff1ad47e6f21876ef4bd5549e
Author: Xiuhong Wang <xiuhong.wang@xxxxxxxxxx>
Date: Wed Mar 6 11:47:45 2024 +0800
f2fs: compress: relocate some judgments in f2fs_reserve_compress_blocks
[ Upstream commit b7d797d241c154d73ec5523f87f3b06d4f299da1 ]
The following f2fs_io test will get a "0" result instead of -EINVAL,
unisoc # ./f2fs_io compress file
unisoc # ./f2fs_io reserve_cblocks file
0
it's not reasonable, so the judgement of
atomic_read(&F2FS_I(inode)->i_compr_blocks) should be placed after
the judgement of is_inode_flag_set(inode, FI_COMPRESS_RELEASED).
Fixes: c75488fb4d82 ("f2fs: introduce F2FS_IOC_RESERVE_COMPRESS_BLOCKS")
Signed-off-by: Xiuhong Wang <xiuhong.wang@xxxxxxxxxx>
Signed-off-by: Zhiguo Niu <zhiguo.niu@xxxxxxxxxx>
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2c2ddb0d15836..b156ac6a17390 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -3679,9 +3679,6 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
if (ret)
return ret;
- if (atomic_read(&F2FS_I(inode)->i_compr_blocks))
- goto out;
-
f2fs_balance_fs(sbi, true);
inode_lock(inode);
@@ -3691,6 +3688,9 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
goto unlock_inode;
}
+ if (atomic_read(&F2FS_I(inode)->i_compr_blocks))
+ goto unlock_inode;
+
f2fs_down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
filemap_invalidate_lock(inode->i_mapping);
@@ -3737,7 +3737,6 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
}
unlock_inode:
inode_unlock(inode);
-out:
mnt_drop_write_file(filp);
if (ret >= 0) {
