diff --git a/block/as-iosched.c b/block/as-iosched.c
index f6dc954..bc13dc0 100644
--- a/block/as-iosched.c
+++ b/block/as-iosched.c
@@ -1280,8 +1280,7 @@
 	unsigned long flags;
 
 	spin_lock_irqsave(q->queue_lock, flags);
-	if (!as_queue_empty(q))
-		q->request_fn(q);
+	blk_start_queueing(q);
 	spin_unlock_irqrestore(q->queue_lock, flags);
 }