if (!cfqd->rq_in_driver && cfq_pending_requests(cfqd))
if (!cfqd->rq_in_driver && cfqd->busy_queues)
static inline void cfq_schedule_dispatch(struct cfq_data *cfqd){	if (!cfqd->rq_in_driver && cfq_pending_requests(cfqd))		kblockd_schedule_work(&cfqd->unplug_work);}