ceph: fix snapshot directory timestamps

The .snap directory timestamps are kept at 0 (1970-01-01 00:00), which
isn't consistent with what the fuse client does.  This patch makes the
behaviour consistent, by setting these timestamps (atime, btime, ctime,
mtime) to those of the parent directory.

Cc: Marc Roos <M.Roos@f1-outsourcing.eu>
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index ee40ba7..7fef94f 100644 (file)
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -82,10 +82,14 @@ struct inode *ceph_get_snapdir(struct inode *parent)
        inode->i_mode = parent->i_mode;
        inode->i_uid = parent->i_uid;
        inode->i_gid = parent->i_gid;
+       inode->i_mtime = parent->i_mtime;
+       inode->i_ctime = parent->i_ctime;
+       inode->i_atime = parent->i_atime;
        inode->i_op = &ceph_snapdir_iops;
        inode->i_fop = &ceph_snapdir_fops;
        ci->i_snap_caps = CEPH_CAP_PIN; /* so we can open */
        ci->i_rbytes = 0;
+       ci->i_btime = ceph_inode(parent)->i_btime;
 
        if (inode->i_state & I_NEW)
                unlock_new_inode(inode);