ceph: don't mark dirty caps when there is no auth cap

No i_auth_cap means reconnecting to MDS was denied. So don't
add new dirty caps.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 0122491..0cfc2d1 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1098,7 +1098,7 @@
 	     cap, ci, &ci->vfs_inode);
 	spin_lock(&ci->i_ceph_lock);
 	__ceph_remove_cap(cap, false);
-	if (!__ceph_is_any_real_caps(ci)) {
+	if (!ci->i_auth_cap) {
 		struct ceph_mds_client *mdsc =
 			ceph_sb_to_client(inode->i_sb)->mdsc;