308 	struct cfqg_stats stats;	/* stats for this cfqg */  member
475 static inline void cfqg_stats_mark_##name(struct cfqg_stats *stats)	\
477 	stats->flags |= (1 << CFQG_stats_##name);			\
479 static inline void cfqg_stats_clear_##name(struct cfqg_stats *stats)	\
481 	stats->flags &= ~(1 << CFQG_stats_##name);			\
483 static inline int cfqg_stats_##name(struct cfqg_stats *stats)		\
485 	return (stats->flags & (1 << CFQG_stats_##name)) != 0;		\
494 static void cfqg_stats_update_group_wait_time(struct cfqg_stats *stats)  in CFQG_FLAG_FNS()
498 	if (!cfqg_stats_waiting(stats))  in CFQG_FLAG_FNS()
502 	if (time_after64(now, stats->start_group_wait_time))  in CFQG_FLAG_FNS()
503 		blkg_stat_add(&stats->group_wait_time,  in CFQG_FLAG_FNS()
504 			      now - stats->start_group_wait_time);  in CFQG_FLAG_FNS()
505 	cfqg_stats_clear_waiting(stats);  in CFQG_FLAG_FNS()
512 	struct cfqg_stats *stats = &cfqg->stats;  in cfqg_stats_set_start_group_wait_time()  local
514 	if (cfqg_stats_waiting(stats))  in cfqg_stats_set_start_group_wait_time()
518 	stats->start_group_wait_time = sched_clock();  in cfqg_stats_set_start_group_wait_time()
519 	cfqg_stats_mark_waiting(stats);  in cfqg_stats_set_start_group_wait_time()
523 static void cfqg_stats_end_empty_time(struct cfqg_stats *stats)  in cfqg_stats_end_empty_time()  argument
527 	if (!cfqg_stats_empty(stats))  in cfqg_stats_end_empty_time()
531 	if (time_after64(now, stats->start_empty_time))  in cfqg_stats_end_empty_time()
532 		blkg_stat_add(&stats->empty_time,  in cfqg_stats_end_empty_time()
533 			      now - stats->start_empty_time);  in cfqg_stats_end_empty_time()
534 	cfqg_stats_clear_empty(stats);  in cfqg_stats_end_empty_time()
539 	blkg_stat_add(&cfqg->stats.dequeue, 1);  in cfqg_stats_update_dequeue()
544 	struct cfqg_stats *stats = &cfqg->stats;  in cfqg_stats_set_start_empty_time()  local
546 	if (blkg_rwstat_total(&stats->queued))  in cfqg_stats_set_start_empty_time()
554 	if (cfqg_stats_empty(stats))  in cfqg_stats_set_start_empty_time()
557 	stats->start_empty_time = sched_clock();  in cfqg_stats_set_start_empty_time()
558 	cfqg_stats_mark_empty(stats);  in cfqg_stats_set_start_empty_time()
563 	struct cfqg_stats *stats = &cfqg->stats;  in cfqg_stats_update_idle_time()  local
565 	if (cfqg_stats_idling(stats)) {  in cfqg_stats_update_idle_time()
568 		if (time_after64(now, stats->start_idle_time))  in cfqg_stats_update_idle_time()
569 			blkg_stat_add(&stats->idle_time,  in cfqg_stats_update_idle_time()
570 				      now - stats->start_idle_time);  in cfqg_stats_update_idle_time()
571 		cfqg_stats_clear_idling(stats);  in cfqg_stats_update_idle_time()
577 	struct cfqg_stats *stats = &cfqg->stats;  in cfqg_stats_set_start_idle_time()  local
579 	BUG_ON(cfqg_stats_idling(stats));  in cfqg_stats_set_start_idle_time()
581 	stats->start_idle_time = sched_clock();  in cfqg_stats_set_start_idle_time()
582 	cfqg_stats_mark_idling(stats);  in cfqg_stats_set_start_idle_time()
587 	struct cfqg_stats *stats = &cfqg->stats;  in cfqg_stats_update_avg_queue_size()  local
589 	blkg_stat_add(&stats->avg_queue_size_sum,  in cfqg_stats_update_avg_queue_size()
590 		      blkg_rwstat_total(&stats->queued));  in cfqg_stats_update_avg_queue_size()
591 	blkg_stat_add(&stats->avg_queue_size_samples, 1);  in cfqg_stats_update_avg_queue_size()
592 	cfqg_stats_update_group_wait_time(stats);  in cfqg_stats_update_avg_queue_size()
598 static inline void cfqg_stats_end_empty_time(struct cfqg_stats *stats) { }  in cfqg_stats_end_empty_time()  argument
679 	blkg_rwstat_add(&cfqg->stats.queued, op, 1);  in cfqg_stats_update_io_add()
680 	cfqg_stats_end_empty_time(&cfqg->stats);  in cfqg_stats_update_io_add()
687 	blkg_stat_add(&cfqg->stats.time, time);  in cfqg_stats_update_timeslice_used()
689 	blkg_stat_add(&cfqg->stats.unaccounted_time, unaccounted_time);  in cfqg_stats_update_timeslice_used()
696 	blkg_rwstat_add(&cfqg->stats.queued, op, -1);  in cfqg_stats_update_io_remove()
702 	blkg_rwstat_add(&cfqg->stats.merged, op, 1);  in cfqg_stats_update_io_merged()
709 	struct cfqg_stats *stats = &cfqg->stats;  in cfqg_stats_update_completion()  local
713 		blkg_rwstat_add(&stats->service_time, op, now - io_start_time);  in cfqg_stats_update_completion()
715 		blkg_rwstat_add(&stats->wait_time, op,  in cfqg_stats_update_completion()
720 static void cfqg_stats_reset(struct cfqg_stats *stats)  in cfqg_stats_reset()  argument
723 	blkg_rwstat_reset(&stats->merged);  in cfqg_stats_reset()
724 	blkg_rwstat_reset(&stats->service_time);  in cfqg_stats_reset()
725 	blkg_rwstat_reset(&stats->wait_time);  in cfqg_stats_reset()
726 	blkg_stat_reset(&stats->time);  in cfqg_stats_reset()
728 	blkg_stat_reset(&stats->unaccounted_time);  in cfqg_stats_reset()
729 	blkg_stat_reset(&stats->avg_queue_size_sum);  in cfqg_stats_reset()
730 	blkg_stat_reset(&stats->avg_queue_size_samples);  in cfqg_stats_reset()
731 	blkg_stat_reset(&stats->dequeue);  in cfqg_stats_reset()
732 	blkg_stat_reset(&stats->group_wait_time);  in cfqg_stats_reset()
733 	blkg_stat_reset(&stats->idle_time);  in cfqg_stats_reset()
734 	blkg_stat_reset(&stats->empty_time);  in cfqg_stats_reset()
771 	cfqg_stats_add_aux(&parent->stats, &cfqg->stats);  in cfqg_stats_xfer_dead()
772 	cfqg_stats_reset(&cfqg->stats);  in cfqg_stats_xfer_dead()
1541 static void cfqg_stats_exit(struct cfqg_stats *stats)  in cfqg_stats_exit()  argument
1543 	blkg_rwstat_exit(&stats->merged);  in cfqg_stats_exit()
1544 	blkg_rwstat_exit(&stats->service_time);  in cfqg_stats_exit()
1545 	blkg_rwstat_exit(&stats->wait_time);  in cfqg_stats_exit()
1546 	blkg_rwstat_exit(&stats->queued);  in cfqg_stats_exit()
1547 	blkg_stat_exit(&stats->time);  in cfqg_stats_exit()
1549 	blkg_stat_exit(&stats->unaccounted_time);  in cfqg_stats_exit()
1550 	blkg_stat_exit(&stats->avg_queue_size_sum);  in cfqg_stats_exit()
1551 	blkg_stat_exit(&stats->avg_queue_size_samples);  in cfqg_stats_exit()
1552 	blkg_stat_exit(&stats->dequeue);  in cfqg_stats_exit()
1553 	blkg_stat_exit(&stats->group_wait_time);  in cfqg_stats_exit()
1554 	blkg_stat_exit(&stats->idle_time);  in cfqg_stats_exit()
1555 	blkg_stat_exit(&stats->empty_time);  in cfqg_stats_exit()
1559 static int cfqg_stats_init(struct cfqg_stats *stats, gfp_t gfp)  in cfqg_stats_init()  argument
1561 	if (blkg_rwstat_init(&stats->merged, gfp) ||  in cfqg_stats_init()
1562 	    blkg_rwstat_init(&stats->service_time, gfp) ||  in cfqg_stats_init()
1563 	    blkg_rwstat_init(&stats->wait_time, gfp) ||  in cfqg_stats_init()
1564 	    blkg_rwstat_init(&stats->queued, gfp) ||  in cfqg_stats_init()
1565 	    blkg_stat_init(&stats->time, gfp))  in cfqg_stats_init()
1569 	if (blkg_stat_init(&stats->unaccounted_time, gfp) ||  in cfqg_stats_init()
1570 	    blkg_stat_init(&stats->avg_queue_size_sum, gfp) ||  in cfqg_stats_init()
1571 	    blkg_stat_init(&stats->avg_queue_size_samples, gfp) ||  in cfqg_stats_init()
1572 	    blkg_stat_init(&stats->dequeue, gfp) ||  in cfqg_stats_init()
1573 	    blkg_stat_init(&stats->group_wait_time, gfp) ||  in cfqg_stats_init()
1574 	    blkg_stat_init(&stats->idle_time, gfp) ||  in cfqg_stats_init()
1575 	    blkg_stat_init(&stats->empty_time, gfp))  in cfqg_stats_init()
1580 	cfqg_stats_exit(stats);  in cfqg_stats_init()
1635 	if (cfqg_stats_init(&cfqg->stats, gfp)) {  in cfq_pd_alloc()
1681 	cfqg_stats_exit(&cfqg->stats);  in cfq_pd_free()
1689 	cfqg_stats_reset(&cfqg->stats);  in cfq_pd_reset_stats()
2022 	u64 samples = blkg_stat_read(&cfqg->stats.avg_queue_size_samples);  in cfqg_prfill_avg_queue_size()
2026 		v = blkg_stat_read(&cfqg->stats.avg_queue_size_sum);  in cfqg_prfill_avg_queue_size()
2091 		.private = offsetof(struct cfq_group, stats.time),
2110 		.private = offsetof(struct cfq_group, stats.service_time),
2115 		.private = offsetof(struct cfq_group, stats.wait_time),
2120 		.private = offsetof(struct cfq_group, stats.merged),
2125 		.private = offsetof(struct cfq_group, stats.queued),
2132 		.private = offsetof(struct cfq_group, stats.time),
2151 		.private = offsetof(struct cfq_group, stats.service_time),
2156 		.private = offsetof(struct cfq_group, stats.wait_time),
2161 		.private = offsetof(struct cfq_group, stats.merged),
2166 		.private = offsetof(struct cfq_group, stats.queued),
2176 		.private = offsetof(struct cfq_group, stats.group_wait_time),
2181 		.private = offsetof(struct cfq_group, stats.idle_time),
2186 		.private = offsetof(struct cfq_group, stats.empty_time),
2191 		.private = offsetof(struct cfq_group, stats.dequeue),
2196 		.private = offsetof(struct cfq_group, stats.unaccounted_time),