diff options
| author | Chao Yu <[email protected]> | 2024-04-07 15:26:04 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <[email protected]> | 2024-04-12 20:58:35 +0000 |
| commit | bd9ae4ae9e585061acfd4a169f2321706f900246 (patch) | |
| tree | f25c00ec0ec9468244ea8b1b9ebf1da2c6346207 | |
| parent | 7c5dffb3d90c5921b91981cc663e02757d90526e (diff) | |
f2fs: compress: fix to relocate check condition in f2fs_ioc_{,de}compress_file()
Compress flag should be checked after inode lock held to avoid
racing w/ f2fs_setflags_common() , fix it.
Fixes: 5fdb322ff2c2 ("f2fs: add F2FS_IOC_DECOMPRESS_FILE and F2FS_IOC_COMPRESS_FILE")
Reported-by: Zhiguo Niu <[email protected]>
Closes: https://lore.kernel.org/linux-f2fs-devel/CAHJ8P3LdZXLc2rqeYjvymgYHr2+YLuJ0sLG9DdsJZmwO7deuhw@mail.gmail.com
Signed-off-by: Chao Yu <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
| -rw-r--r-- | fs/f2fs/file.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index e4435461aeeb..f88dff065ff1 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -4136,9 +4136,6 @@ static int f2fs_ioc_decompress_file(struct file *filp) if (!(filp->f_mode & FMODE_WRITE)) return -EBADF; - if (!f2fs_compressed_file(inode)) - return -EINVAL; - f2fs_balance_fs(sbi, true); file_start_write(filp); @@ -4149,7 +4146,8 @@ static int f2fs_ioc_decompress_file(struct file *filp) goto out; } - if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { + if (!f2fs_compressed_file(inode) || + is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { ret = -EINVAL; goto out; } @@ -4214,9 +4212,6 @@ static int f2fs_ioc_compress_file(struct file *filp) if (!(filp->f_mode & FMODE_WRITE)) return -EBADF; - if (!f2fs_compressed_file(inode)) - return -EINVAL; - f2fs_balance_fs(sbi, true); file_start_write(filp); @@ -4227,7 +4222,8 @@ static int f2fs_ioc_compress_file(struct file *filp) goto out; } - if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { + if (!f2fs_compressed_file(inode) || + is_inode_flag_set(inode, FI_COMPRESS_RELEASED)) { ret = -EINVAL; goto out; } |