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Subject[PATCH AUTOSEL 4.14 078/109] f2fs: fix to recover inode's project id during POR
Date
From: Chao Yu <yuchao0@huawei.com>

[ Upstream commit f4474aa6e5e901ee4af21f39f1b9115aaaaec503 ]

Testcase to reproduce this bug:
1. mkfs.f2fs -O extra_attr -O project_quota /dev/sdd
2. mount -t f2fs /dev/sdd /mnt/f2fs
3. touch /mnt/f2fs/file
4. sync
5. chattr -p 1 /mnt/f2fs/file
6. xfs_io -f /mnt/f2fs/file -c "fsync"
7. godown /mnt/f2fs
8. umount /mnt/f2fs
9. mount -t f2fs /dev/sdd /mnt/f2fs
10. lsattr -p /mnt/f2fs/file

0 -----------------N- /mnt/f2fs/file

But actually, we expect the correct result is:

1 -----------------N- /mnt/f2fs/file

The reason is we didn't recover inode.i_projid field during mount,
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 | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index adbf2600c0908..87942cf2afe1f 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -203,6 +203,19 @@ static void recover_inode(struct inode *inode, struct page *page)
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));
+
+ if (raw->i_inline & F2FS_EXTRA_ATTR) {
+ if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)->sb) &&
+ F2FS_FITS_IN_INODE(raw, le16_to_cpu(raw->i_extra_isize),
+ i_projid)) {
+ projid_t i_projid;
+
+ i_projid = (projid_t)le32_to_cpu(raw->i_projid);
+ F2FS_I(inode)->i_projid =
+ make_kprojid(&init_user_ns, i_projid);
+ }
+ }
+
f2fs_i_size_write(inode, le64_to_cpu(raw->i_size));
inode->i_atime.tv_sec = le64_to_cpu(raw->i_atime);
inode->i_ctime.tv_sec = le64_to_cpu(raw->i_ctime);
--
2.20.1
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