[PATCH AUTOSEL 4.9 19/66] f2fs: fix to recover inode's uid/gid during POR

Sasha Levin
2019-11-10T03:02:25Z

From: Chao Yu <yuchao0@huawei.com>

[ Upstream commit dc4cd1257c86451cec3e8e352cc376348e4f4af4 ]

Step to reproduce this bug:
1. logon as root
2. mount -t f2fs /dev/sdd /mnt;
3. touch /mnt/file;
4. chown system /mnt/file; chgrp system /mnt/file;
5. xfs_io -f /mnt/file -c "fsync";
6. godown /mnt;
7. umount /mnt;
8. mount -t f2fs /dev/sdd /mnt;

After step 8) we will expect file's uid/gid are all system, but during
recovery, these two fields were not been recovered, fix it.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/f2fs/recovery.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 9de1480a86bd3..e87b7d7e80fc7 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -179,6 +179,8 @@ static void recover_inode(struct inode *inode, struct page *page)
char *name;

inode->i_mode = le16_to_cpu(raw->i_mode);
+ i_uid_write(inode, le32_to_cpu(raw->i_uid));
+ i_gid_write(inode, le32_to_cpu(raw->i_gid));
f2fs_i_size_write(inode, le64_to_cpu(raw->i_size));
inode->i_atime.tv_sec = le64_to_cpu(raw->i_mtime);
inode->i_ctime.tv_sec = le64_to_cpu(raw->i_ctime);
--
2.20.1