enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
{
	bool renorm = !(flags & ENQUEUE_WAKEUP) || (flags & ENQUEUE_MIGRATED);
	bool curr = cfs_rq->curr == se;

	/*
	 * If we're the current task, we must renormalise before calling
	 * update_curr().
	 */
	if (renorm && curr)
		se->vruntime += cfs_rq->min_vruntime;

	update_curr(cfs_rq);

	/*
	 * Otherwise, renormalise after, such that we're placed at the current
	 * moment in time, instead of some random moment in the past. Being
	 * placed in the past could significantly boost this task to the
	 * fairness detriment of existing tasks.
	 */
	if (renorm && !curr)
		se->vruntime += cfs_rq->min_vruntime;

	/*
	 * When enqueuing a sched_entity, we must:
	 *   - Update loads to have both entity and cfs_rq synced with now.
	 *   - Add its load to cfs_rq->runnable_avg
	 *   - For group_entity, update its weight to reflect the new share of
	 *     its group cfs_rq
	 *   - Add its new weight to cfs_rq->load.weight
	 */
	update_load_avg(cfs_rq, se, UPDATE_TG | DO_ATTACH);
	update_cfs_group(se);
	enqueue_runnable_load_avg(cfs_rq, se);
	account_entity_enqueue(cfs_rq, se);

	if (flags & ENQUEUE_WAKEUP)
		place_entity(cfs_rq, se, 0);

	check_schedstat_required();
	update_stats_enqueue(cfs_rq, se, flags);
	check_spread(cfs_rq, se);
	if (!curr)
		__enqueue_entity(cfs_rq, se);
	se->on_rq = 1;

	if (cfs_rq->nr_running == 1) {
		list_add_leaf_cfs_rq(cfs_rq);
		check_enqueue_throttle(cfs_rq);
	}
}
enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
{
	bool renorm = !(flags & ENQUEUE_WAKEUP) || (flags & ENQUEUE_MIGRATED);
	bool curr = cfs_rq->curr == se;

	 
	if (renorm && curr)
		se->vruntime += cfs_rq->min_vruntime;

	update_curr(cfs_rq);

	 
	if (renorm && !curr)
		se->vruntime += cfs_rq->min_vruntime;

	 
	update_load_avg(cfs_rq, se, UPDATE_TG | DO_ATTACH);
	update_cfs_group(se);
	enqueue_runnable_load_avg(cfs_rq, se);
	account_entity_enqueue(cfs_rq, se);

	if (flags & ENQUEUE_WAKEUP)
		place_entity(cfs_rq, se, 0);

	check_schedstat_required();
	update_stats_enqueue(cfs_rq, se, flags);
	check_spread(cfs_rq, se);
	if (!curr)
		__enqueue_entity(cfs_rq, se);
	se->on_rq = 1;

	if (cfs_rq->nr_running == 1) {
		list_add_leaf_cfs_rq(cfs_rq);
		check_enqueue_throttle(cfs_rq);
	}
}