37 static void bfqg_stats_mark_##name(struct bfqg_stats *stats)	\
39 	stats->flags |= (1 << BFQG_stats_##name);			\
41 static void bfqg_stats_clear_##name(struct bfqg_stats *stats)	\
43 	stats->flags &= ~(1 << BFQG_stats_##name);			\
45 static int bfqg_stats_##name(struct bfqg_stats *stats)		\
47 	return (stats->flags & (1 << BFQG_stats_##name)) != 0;		\
56 static void bfqg_stats_update_group_wait_time(struct bfqg_stats *stats)  in BFQG_FLAG_FNS()
60 	if (!bfqg_stats_waiting(stats))  in BFQG_FLAG_FNS()
64 	if (now > stats->start_group_wait_time)  in BFQG_FLAG_FNS()
65 		blkg_stat_add(&stats->group_wait_time,  in BFQG_FLAG_FNS()
66 			      now - stats->start_group_wait_time);  in BFQG_FLAG_FNS()
67 	bfqg_stats_clear_waiting(stats);  in BFQG_FLAG_FNS()
74 	struct bfqg_stats *stats = &bfqg->stats;  in bfqg_stats_set_start_group_wait_time()  local
76 	if (bfqg_stats_waiting(stats))  in bfqg_stats_set_start_group_wait_time()
80 	stats->start_group_wait_time = ktime_get_ns();  in bfqg_stats_set_start_group_wait_time()
81 	bfqg_stats_mark_waiting(stats);  in bfqg_stats_set_start_group_wait_time()
85 static void bfqg_stats_end_empty_time(struct bfqg_stats *stats)  in bfqg_stats_end_empty_time()  argument
89 	if (!bfqg_stats_empty(stats))  in bfqg_stats_end_empty_time()
93 	if (now > stats->start_empty_time)  in bfqg_stats_end_empty_time()
94 		blkg_stat_add(&stats->empty_time,  in bfqg_stats_end_empty_time()
95 			      now - stats->start_empty_time);  in bfqg_stats_end_empty_time()
96 	bfqg_stats_clear_empty(stats);  in bfqg_stats_end_empty_time()
101 	blkg_stat_add(&bfqg->stats.dequeue, 1);  in bfqg_stats_update_dequeue()
106 	struct bfqg_stats *stats = &bfqg->stats;  in bfqg_stats_set_start_empty_time()  local
108 	if (blkg_rwstat_total(&stats->queued))  in bfqg_stats_set_start_empty_time()
116 	if (bfqg_stats_empty(stats))  in bfqg_stats_set_start_empty_time()
119 	stats->start_empty_time = ktime_get_ns();  in bfqg_stats_set_start_empty_time()
120 	bfqg_stats_mark_empty(stats);  in bfqg_stats_set_start_empty_time()
125 	struct bfqg_stats *stats = &bfqg->stats;  in bfqg_stats_update_idle_time()  local
127 	if (bfqg_stats_idling(stats)) {  in bfqg_stats_update_idle_time()
130 		if (now > stats->start_idle_time)  in bfqg_stats_update_idle_time()
131 			blkg_stat_add(&stats->idle_time,  in bfqg_stats_update_idle_time()
132 				      now - stats->start_idle_time);  in bfqg_stats_update_idle_time()
133 		bfqg_stats_clear_idling(stats);  in bfqg_stats_update_idle_time()
139 	struct bfqg_stats *stats = &bfqg->stats;  in bfqg_stats_set_start_idle_time()  local
141 	stats->start_idle_time = ktime_get_ns();  in bfqg_stats_set_start_idle_time()
142 	bfqg_stats_mark_idling(stats);  in bfqg_stats_set_start_idle_time()
147 	struct bfqg_stats *stats = &bfqg->stats;  in bfqg_stats_update_avg_queue_size()  local
149 	blkg_stat_add(&stats->avg_queue_size_sum,  in bfqg_stats_update_avg_queue_size()
150 		      blkg_rwstat_total(&stats->queued));  in bfqg_stats_update_avg_queue_size()
151 	blkg_stat_add(&stats->avg_queue_size_samples, 1);  in bfqg_stats_update_avg_queue_size()
152 	bfqg_stats_update_group_wait_time(stats);  in bfqg_stats_update_avg_queue_size()
158 	blkg_rwstat_add(&bfqg->stats.queued, op, 1);  in bfqg_stats_update_io_add()
159 	bfqg_stats_end_empty_time(&bfqg->stats);  in bfqg_stats_update_io_add()
166 	blkg_rwstat_add(&bfqg->stats.queued, op, -1);  in bfqg_stats_update_io_remove()
171 	blkg_rwstat_add(&bfqg->stats.merged, op, 1);  in bfqg_stats_update_io_merged()
177 	struct bfqg_stats *stats = &bfqg->stats;  in bfqg_stats_update_completion()  local
181 		blkg_rwstat_add(&stats->service_time, op,  in bfqg_stats_update_completion()
184 		blkg_rwstat_add(&stats->wait_time, op,  in bfqg_stats_update_completion()
284 static void bfqg_stats_reset(struct bfqg_stats *stats)  in bfqg_stats_reset()  argument
288 	blkg_rwstat_reset(&stats->merged);  in bfqg_stats_reset()
289 	blkg_rwstat_reset(&stats->service_time);  in bfqg_stats_reset()
290 	blkg_rwstat_reset(&stats->wait_time);  in bfqg_stats_reset()
291 	blkg_stat_reset(&stats->time);  in bfqg_stats_reset()
292 	blkg_stat_reset(&stats->avg_queue_size_sum);  in bfqg_stats_reset()
293 	blkg_stat_reset(&stats->avg_queue_size_samples);  in bfqg_stats_reset()
294 	blkg_stat_reset(&stats->dequeue);  in bfqg_stats_reset()
295 	blkg_stat_reset(&stats->group_wait_time);  in bfqg_stats_reset()
296 	blkg_stat_reset(&stats->idle_time);  in bfqg_stats_reset()
297 	blkg_stat_reset(&stats->empty_time);  in bfqg_stats_reset()
342 	bfqg_stats_add_aux(&parent->stats, &bfqg->stats);  in bfqg_stats_xfer_dead()
343 	bfqg_stats_reset(&bfqg->stats);  in bfqg_stats_xfer_dead()
365 static void bfqg_stats_exit(struct bfqg_stats *stats)  in bfqg_stats_exit()  argument
368 	blkg_rwstat_exit(&stats->merged);  in bfqg_stats_exit()
369 	blkg_rwstat_exit(&stats->service_time);  in bfqg_stats_exit()
370 	blkg_rwstat_exit(&stats->wait_time);  in bfqg_stats_exit()
371 	blkg_rwstat_exit(&stats->queued);  in bfqg_stats_exit()
372 	blkg_stat_exit(&stats->time);  in bfqg_stats_exit()
373 	blkg_stat_exit(&stats->avg_queue_size_sum);  in bfqg_stats_exit()
374 	blkg_stat_exit(&stats->avg_queue_size_samples);  in bfqg_stats_exit()
375 	blkg_stat_exit(&stats->dequeue);  in bfqg_stats_exit()
376 	blkg_stat_exit(&stats->group_wait_time);  in bfqg_stats_exit()
377 	blkg_stat_exit(&stats->idle_time);  in bfqg_stats_exit()
378 	blkg_stat_exit(&stats->empty_time);  in bfqg_stats_exit()
382 static int bfqg_stats_init(struct bfqg_stats *stats, gfp_t gfp)  in bfqg_stats_init()  argument
385 	if (blkg_rwstat_init(&stats->merged, gfp) ||  in bfqg_stats_init()
386 	    blkg_rwstat_init(&stats->service_time, gfp) ||  in bfqg_stats_init()
387 	    blkg_rwstat_init(&stats->wait_time, gfp) ||  in bfqg_stats_init()
388 	    blkg_rwstat_init(&stats->queued, gfp) ||  in bfqg_stats_init()
389 	    blkg_stat_init(&stats->time, gfp) ||  in bfqg_stats_init()
390 	    blkg_stat_init(&stats->avg_queue_size_sum, gfp) ||  in bfqg_stats_init()
391 	    blkg_stat_init(&stats->avg_queue_size_samples, gfp) ||  in bfqg_stats_init()
392 	    blkg_stat_init(&stats->dequeue, gfp) ||  in bfqg_stats_init()
393 	    blkg_stat_init(&stats->group_wait_time, gfp) ||  in bfqg_stats_init()
394 	    blkg_stat_init(&stats->idle_time, gfp) ||  in bfqg_stats_init()
395 	    blkg_stat_init(&stats->empty_time, gfp)) {  in bfqg_stats_init()
396 		bfqg_stats_exit(stats);  in bfqg_stats_init()
445 	if (bfqg_stats_init(&bfqg->stats, gfp)) {  in bfq_pd_alloc()
478 	bfqg_stats_exit(&bfqg->stats);  in bfq_pd_free()
486 	bfqg_stats_reset(&bfqg->stats);  in bfq_pd_reset_stats()
1006 	u64 samples = blkg_stat_read(&bfqg->stats.avg_queue_size_samples);  in bfqg_prfill_avg_queue_size()
1010 		v = blkg_stat_read(&bfqg->stats.avg_queue_size_sum);  in bfqg_prfill_avg_queue_size()
1076 		.private = offsetof(struct bfq_group, stats.time),
1085 		.private = offsetof(struct bfq_group, stats.service_time),
1090 		.private = offsetof(struct bfq_group, stats.wait_time),
1095 		.private = offsetof(struct bfq_group, stats.merged),
1100 		.private = offsetof(struct bfq_group, stats.queued),
1119 		.private = offsetof(struct bfq_group, stats.time),
1128 		.private = offsetof(struct bfq_group, stats.service_time),
1133 		.private = offsetof(struct bfq_group, stats.wait_time),
1138 		.private = offsetof(struct bfq_group, stats.merged),
1143 		.private = offsetof(struct bfq_group, stats.queued),
1152 		.private = offsetof(struct bfq_group, stats.group_wait_time),
1157 		.private = offsetof(struct bfq_group, stats.idle_time),
1162 		.private = offsetof(struct bfq_group, stats.empty_time),
1167 		.private = offsetof(struct bfq_group, stats.dequeue),