+struct noop_data {
+ struct list_head queue;
+};
+
+static void noop_merged_requests(request_queue_t *q, struct request *rq,
+ struct request *next)
+{
+ list_del_init(&next->queuelist);
+}
+
+static int noop_dispatch(request_queue_t *q, int force)
+{
+ struct noop_data *nd = q->elevator->elevator_data;
+
+ if (!list_empty(&nd->queue)) {
+ struct request *rq;
+ rq = list_entry(nd->queue.next, struct request, queuelist);
+ list_del_init(&rq->queuelist);
+ elv_dispatch_sort(q, rq);
+ return 1;
+ }
+ return 0;
+}
+
+static void noop_add_request(request_queue_t *q, struct request *rq)
+{
+ struct noop_data *nd = q->elevator->elevator_data;
+
+ list_add_tail(&rq->queuelist, &nd->queue);
+}
+
+static int noop_queue_empty(request_queue_t *q)