/* we temporarily boost lower priority queues if they are holding fs exclusive resources. they are boosted to normal prio (CLASS_BE/4)  */
static void cfq_prio_boost(struct cfq_queue *cfqq)
/* we temporarily boost lower priority queues if they are holding fs exclusive resources. they are boosted to normal prio (CLASS_BE/4)  */
static void cfq_prio_boost(struct cfq_queue *cfqq)
{
	if (has_fs_excl()) {
		if (cfq_class_idle(cfqq))
			cfqq->ioprio_class = IOPRIO_CLASS_BE;
		if (cfqq->ioprio > IOPRIO_NORM)
			cfqq->ioprio = IOPRIO_NORM;
	} else {
		cfqq->ioprio_class = cfqq->org_ioprio_class;
		cfqq->ioprio = cfqq->org_ioprio;
	}
}