f2fs: fix to recover inode's project id during POR

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>

diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 41f2c0fe6d8eb16281f63ab3d6b365972572aa0d..2b59e37d9093a0cc6668d205e4e4d3c957eeffd6 100644 (file)
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -211,6 +211,19 @@ 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);