ceph: don't show symlink target in debugfs/mdsc

symlink target is useless for debug and can be very long. It's annoying
to show it in debugfs/mdsc.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 31f8314..39ff678 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -109,7 +109,7 @@
 				   path ? path : "");
 			spin_unlock(&req->r_old_dentry->d_lock);
 			kfree(path);
-		} else if (req->r_path2) {
+		} else if (req->r_path2 && req->r_op != CEPH_MDS_OP_SYMLINK) {
 			if (req->r_ino2.ino)
 				seq_printf(s, " #%llx/%s", req->r_ino2.ino,
 					   req->r_path2);