commit 306424cc880a0fbbdc99eee1f43d056a301a180f
author Li Zefan <lizf@cn.fujitsu.com> Wed Dec 14 20:12:02 2011 -0500
committer Chris Mason <chris.mason@oracle.com> Thu Dec 15 10:50:37 2011 -0500
tree 7c6b3b851fcd325c65724f3a7875311407998a6d
parent f8e9e0b07be0464e12366631da3da73a1a62449c

Btrfs: fix ctime update of on-disk inode

To reproduce the bug:

    # touch /mnt/tmp
    # stat /mnt/tmp | grep Change
    Change: 2011-12-09 09:32:23.412105981 +0800
    # chattr +i /mnt/tmp
    # stat /mnt/tmp | grep Change
    Change: 2011-12-09 09:32:43.198105295 +0800
    # umount /mnt
    # mount /dev/loop1 /mnt
    # stat /mnt/tmp | grep Change
    Change: 2011-12-09 09:32:23.412105981 +0800

We should update ctime of in-memory inode before calling
btrfs_update_inode().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>