}
  /*
   * Tasks that run out of time_slice but still have slice left get
   * requeued with a lower priority && RR_INTERVAL time_slice.
   */
  if (!--p->time_slice) {
    time_slice_expired(p, rq);
  }
  rq->cache_ticks++;
  if (rq->preempted && rq->cache_ticks >= CACHE_DELAY)
    set_tsk_need_resched(p);
out_unlock:
  spin_unlock(&rq->lock);
}