f2fs: fix to check pinfile flag in f2fs_move_file_range()

[ Upstream commit e07230da0500e0919a765037c5e81583b519be2c ]

ioctl(F2FS_IOC_MOVE_RANGE) can truncate or punch hole on pinned file,
fix to disallow it.

Fixes: 5fed0be8583f ("f2fs: do not allow partial truncation on pinned file")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 9cf04b9d3ad8e50f8793c6b224dd720c557107d2..f66959ae016360b254190e82ff48e4941c1091be 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2835,7 +2835,8 @@ static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
                        goto out;
        }
 
-       if (f2fs_compressed_file(src) || f2fs_compressed_file(dst)) {
+       if (f2fs_compressed_file(src) || f2fs_compressed_file(dst) ||
+               f2fs_is_pinned_file(src) || f2fs_is_pinned_file(dst)) {
                ret = -EOPNOTSUPP;
                goto out_unlock;
        }