kernel/sched/fair.c

4839 	return READ_ONCE(p->se.avg.util_est) & ~UTIL_AVG_UNCHANGED;
4856 	enqueued  = cfs_rq->avg.util_est;
4858 	WRITE_ONCE(cfs_rq->avg.util_est, enqueued);
4872 	enqueued  = cfs_rq->avg.util_est;
4874 	WRITE_ONCE(cfs_rq->avg.util_est, enqueued);
4898 	ewma = READ_ONCE(p->se.avg.util_est);
4902 	 * skip the util_est update.
4963 	WRITE_ONCE(p->se.avg.util_est, ewma);
7733 		unsigned long util_est;
7735 		util_est = READ_ONCE(cfs_rq->avg.util_est);
7739 		 * to any cpu_rq(cpu)->cfs.avg.util_est.
7744 		 * contribute to cpu_rq(cpu)->cfs.util_est.
7764 			util_est += _task_util_est(p);
7766 			lsub_positive(&util_est, _task_util_est(p));
7768 		util = max(util, util_est);
7858  *     (util_avg or util_est).