920 					(unsigned long long)atomic64_read(&blkg->delay_nsec));  in blkcg_print_stat()
1622 		u64 cur = atomic64_read(&blkg->delay_nsec);  in blkcg_scale_delay()
1640 			atomic64_set(&blkg->delay_nsec, 0);  in blkcg_scale_delay()
1643 			atomic64_sub(sub, &blkg->delay_nsec);  in blkcg_scale_delay()
1662 	u64 delay_nsec = 0;  in blkcg_maybe_throttle_blkg()  local
1672 			this_delay = atomic64_read(&blkg->delay_nsec);  in blkcg_maybe_throttle_blkg()
1673 			if (this_delay > delay_nsec) {  in blkcg_maybe_throttle_blkg()
1674 				delay_nsec = this_delay;  in blkcg_maybe_throttle_blkg()
1681 	if (!delay_nsec)  in blkcg_maybe_throttle_blkg()
1694 		delay_nsec = min_t(u64, delay_nsec, 250 * NSEC_PER_MSEC);  in blkcg_maybe_throttle_blkg()
1699 	exp = ktime_add_ns(now, delay_nsec);  in blkcg_maybe_throttle_blkg()
1808 	atomic64_add(delta, &blkg->delay_nsec);  in blkcg_add_delay()