4893 	unsigned int ewma, dequeued, last_ewma_diff;  in util_est_update()  local
4906 	ewma = READ_ONCE(p->se.avg.util_est);  in util_est_update()
4912 	if (ewma & UTIL_AVG_UNCHANGED)  in util_est_update()
4922 	if (ewma <= dequeued) {  in util_est_update()
4923 		ewma = dequeued;  in util_est_update()
4931 	last_ewma_diff = ewma - dequeued;  in util_est_update()
4966 	ewma <<= UTIL_EST_WEIGHT_SHIFT;  in util_est_update()
4967 	ewma  -= last_ewma_diff;  in util_est_update()
4968 	ewma >>= UTIL_EST_WEIGHT_SHIFT;  in util_est_update()
4970 	ewma |= UTIL_AVG_UNCHANGED;  in util_est_update()
4971 	WRITE_ONCE(p->se.avg.util_est, ewma);  in util_est_update()