[PATCH] fix broken blk_start_queue behavior

From Lou Langholtz <ldl@aros.net>

This fixes the behavior of blk_start_queue() so that request queues
really do start up again after blk_start_queue() is called (on queues
that were previously stopped via blk_stop_queue).

drivers/block/ll_rw_blk.c

@@ -1027,10 +1027,10 @@ int blk_remove_plug(request_queue_t *q)
  */
 static inline void __generic_unplug_device(request_queue_t *q)
 {
-	if (!blk_remove_plug(q))
+	if (test_bit(QUEUE_FLAG_STOPPED, &q->queue_flags))
 		return;
 
-	if (test_bit(QUEUE_FLAG_STOPPED, &q->queue_flags))
+	if (!blk_remove_plug(q))
 		return;
 
 	del_timer(&q->unplug_timer);