[2.5] list_move_tail for sunrpc (1 occ)

@@ -1065,8 +1065,7 @@
 	if (test_bit(SK_TEMP, &svsk->sk_flags)) {
 		/* push active sockets to end of list */
 		spin_lock_bh(&serv->sv_lock);
-		list_del(&svsk->sk_list);
-		list_add_tail(&svsk->sk_list, &serv->sv_tempsocks);
+		list_move_tail(&svsk->sk_list, &serv->sv_tempsocks);
 		spin_unlock_bh(&serv->sv_lock);
 	}