Function tdq_setlowpri

freebsd/kern/sched_ule.c:599–612

* Set lowpri to its exact value by searching the run-queue and * evaluating curthread. curthread may be passed as an optimization. */

 * evaluating curthread.  curthread may be passed as an optimization.
 */
static void
tdq_setlowpri(struct tdq *tdq, struct thread *ctd)
{
	struct thread *td;

	TDQ_LOCK_ASSERT(tdq, MA_OWNED);
	if (ctd == NULL)
		ctd = pcpu_find(TDQ_ID(tdq))->pc_curthread;
	td = tdq_choose(tdq);
	if (td == NULL || td->td_priority > ctd->td_priority)
		tdq->tdq_lowpri = ctd->td_priority;
	else
		tdq->tdq_lowpri = td->td_priority;
}

#ifdef SMP
/*