Function kern_yield

freebsd/kern/kern_synch.c:656–670

}

void
kern_yield(int prio)
{
	struct thread *td;

	td = curthread;
	DROP_GIANT();
	thread_lock(td);
	if (prio == PRI_USER)
		prio = td->td_user_pri;
	if (prio >= 0)
		sched_prio(td, prio);
	mi_switch(SW_VOL | SWT_RELINQUISH);
	PICKUP_GIANT();
}

/*
 * General purpose yield system call.