On 2023/4/25 23:11, Yangtao Li wrote:
If a file has FI_COMPRESS_RELEASED, all writes for it should not be
allowed.
Fixes: 5fdb322ff2c2 ("f2fs: add F2FS_IOC_DECOMPRESS_FILE and
F2FS_IOC_COMPRESS_FILE")
Signed-off-by: Qi Han <ha...@vivo.com>
Signed-off-by: Yangtao Li <frank...@vivo.com>
---
fs/f2fs/file.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 9c9c3f660e01..c21d6a829c4a 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2734,6 +2734,9 @@ static int f2fs_ioc_defragment(struct file *filp,
unsigned long arg)
if (f2fs_readonly(sbi->sb))
return -EROFS;
+ if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
+ return -EINVAL;
This flag should be checked w/ inode lock.
Thanks,
+
if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
sizeof(range)))
return -EFAULT;
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