kernel/sched/fair.c

384 		 * With cfs_rq being unthrottled/throttled during an enqueue,
4482 	u64 throttled = 0, now, lut;
4531 	throttled = u64_u32_load(cfs_rq->throttled_pelt_idle);
4533 	if (throttled == U64_MAX)
4546 	now -= throttled;
5668 	if (cfs_rq->throttled)
5672 	 * hierarchy can be throttled
5689 	return cfs_bandwidth_used() && cfs_rq->throttled;
5692 /* check whether cfs_rq, or any parent, is throttled */
5700  * dest_cpu are members of a throttled hierarchy when performing group
5749 	/* group is entering throttled state, stop time */
5775 		 * actually throttled the timer might not unthrottle us for an
5793 	/* freeze hierarchy runnable averages while throttled */
5802 		/* throttled entity or throttle-on-deactivate */
5823 		/* throttled entity or throttle-on-deactivate */
5842 	 * Note: distribution will already see us throttled via the
5843 	 * throttled-list.  rq->lock protects completion.
5845 	cfs_rq->throttled = 1;
5861 	cfs_rq->throttled = 0;
5905 		/* end evaluation on encountering a throttled cfs_rq */
5922 		/* end evaluation on encountering a throttled cfs_rq */
6019 	bool throttled = false;
6031 			throttled = true;
6056 		/* we check whether we're throttled above */
6070 			throttled = true;
6094 	return throttled;
6105 	int throttled;
6111 	throttled = !list_empty(&cfs_b->throttled_cfs_rq);
6118 	 * idle depends on !throttled (for the case of a large deficit), and if
6121 	if (cfs_b->idle && !throttled)
6124 	if (!throttled) {
6136 	while (throttled && cfs_b->runtime > 0) {
6139 		throttled = distribute_cfs_runtime(cfs_b);
6147 	 * timer to remain active while there are any throttled entities.)
6284 	/* ensure the group is not already throttled */
6321 	 * it's possible for a throttled entity to be forced into a running
6452 	 * exist throttled cfs_rq(s), and the period_timer must have queued the
6783 		/* end evaluation on encountering a throttled cfs_rq */
6803 		/* end evaluation on encountering a throttled cfs_rq */
6861 		/* end evaluation on encountering a throttled cfs_rq */
6893 		/* end evaluation on encountering a throttled cfs_rq */
8376 	 * Note: this also catches the edge-case of curr being in a throttled
8660 	/* throttled hierarchies are not runnable */
12535 	/* Ensure any throttled groups are reachable by pick_next_task */