50 static ssize_t queue_requests_show(struct request_queue *q, char *page)  in queue_requests_show()  argument
52 	return queue_var_show(q->nr_requests, page);  in queue_requests_show()
56 queue_requests_store(struct request_queue *q, const char *page, size_t count)  in queue_requests_store()  argument
61 	if (!queue_is_mq(q))  in queue_requests_store()
71 	err = blk_mq_update_nr_requests(q, nr);  in queue_requests_store()
78 static ssize_t queue_ra_show(struct request_queue *q, char *page)  in queue_ra_show()  argument
82 	if (!q->disk)  in queue_ra_show()
84 	ra_kb = q->disk->bdi->ra_pages << (PAGE_SHIFT - 10);  in queue_ra_show()
89 queue_ra_store(struct request_queue *q, const char *page, size_t count)  in queue_ra_store()  argument
94 	if (!q->disk)  in queue_ra_store()
99 	q->disk->bdi->ra_pages = ra_kb >> (PAGE_SHIFT - 10);  in queue_ra_store()
103 static ssize_t queue_max_sectors_show(struct request_queue *q, char *page)  in queue_max_sectors_show()  argument
105 	int max_sectors_kb = queue_max_sectors(q) >> 1;  in queue_max_sectors_show()
110 static ssize_t queue_max_segments_show(struct request_queue *q, char *page)  in queue_max_segments_show()  argument
112 	return queue_var_show(queue_max_segments(q), page);  in queue_max_segments_show()
115 static ssize_t queue_max_discard_segments_show(struct request_queue *q,  in queue_max_discard_segments_show()  argument
118 	return queue_var_show(queue_max_discard_segments(q), page);  in queue_max_discard_segments_show()
121 static ssize_t queue_max_integrity_segments_show(struct request_queue *q, char *page)  in queue_max_integrity_segments_show()  argument
123 	return queue_var_show(q->limits.max_integrity_segments, page);  in queue_max_integrity_segments_show()
126 static ssize_t queue_max_segment_size_show(struct request_queue *q, char *page)  in queue_max_segment_size_show()  argument
128 	return queue_var_show(queue_max_segment_size(q), page);  in queue_max_segment_size_show()
131 static ssize_t queue_logical_block_size_show(struct request_queue *q, char *page)  in queue_logical_block_size_show()  argument
133 	return queue_var_show(queue_logical_block_size(q), page);  in queue_logical_block_size_show()
136 static ssize_t queue_physical_block_size_show(struct request_queue *q, char *page)  in queue_physical_block_size_show()  argument
138 	return queue_var_show(queue_physical_block_size(q), page);  in queue_physical_block_size_show()
141 static ssize_t queue_chunk_sectors_show(struct request_queue *q, char *page)  in queue_chunk_sectors_show()  argument
143 	return queue_var_show(q->limits.chunk_sectors, page);  in queue_chunk_sectors_show()
146 static ssize_t queue_io_min_show(struct request_queue *q, char *page)  in queue_io_min_show()  argument
148 	return queue_var_show(queue_io_min(q), page);  in queue_io_min_show()
151 static ssize_t queue_io_opt_show(struct request_queue *q, char *page)  in queue_io_opt_show()  argument
153 	return queue_var_show(queue_io_opt(q), page);  in queue_io_opt_show()
156 static ssize_t queue_discard_granularity_show(struct request_queue *q, char *page)  in queue_discard_granularity_show()  argument
158 	return queue_var_show(q->limits.discard_granularity, page);  in queue_discard_granularity_show()
161 static ssize_t queue_discard_max_hw_show(struct request_queue *q, char *page)  in queue_discard_max_hw_show()  argument
165 		(unsigned long long)q->limits.max_hw_discard_sectors << 9);  in queue_discard_max_hw_show()
168 static ssize_t queue_discard_max_show(struct request_queue *q, char *page)  in queue_discard_max_show()  argument
171 		       (unsigned long long)q->limits.max_discard_sectors << 9);  in queue_discard_max_show()
174 static ssize_t queue_discard_max_store(struct request_queue *q,  in queue_discard_max_store()  argument
183 	if (max_discard & (q->limits.discard_granularity - 1))  in queue_discard_max_store()
190 	if (max_discard > q->limits.max_hw_discard_sectors)  in queue_discard_max_store()
191 		max_discard = q->limits.max_hw_discard_sectors;  in queue_discard_max_store()
193 	q->limits.max_discard_sectors = max_discard;  in queue_discard_max_store()
197 static ssize_t queue_discard_zeroes_data_show(struct request_queue *q, char *page)  in queue_discard_zeroes_data_show()  argument
202 static ssize_t queue_write_same_max_show(struct request_queue *q, char *page)  in queue_write_same_max_show()  argument
207 static ssize_t queue_write_zeroes_max_show(struct request_queue *q, char *page)  in queue_write_zeroes_max_show()  argument
210 		(unsigned long long)q->limits.max_write_zeroes_sectors << 9);  in queue_write_zeroes_max_show()
213 static ssize_t queue_zone_write_granularity_show(struct request_queue *q,  in queue_zone_write_granularity_show()  argument
216 	return queue_var_show(queue_zone_write_granularity(q), page);  in queue_zone_write_granularity_show()
219 static ssize_t queue_zone_append_max_show(struct request_queue *q, char *page)  in queue_zone_append_max_show()  argument
221 	unsigned long long max_sectors = q->limits.max_zone_append_sectors;  in queue_zone_append_max_show()
227 queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)  in queue_max_sectors_store()  argument
231 		max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1,  in queue_max_sectors_store()
240 					 q->limits.max_dev_sectors >> 1);  in queue_max_sectors_store()
242 		q->limits.max_user_sectors = 0;  in queue_max_sectors_store()
249 		q->limits.max_user_sectors = max_sectors_kb << 1;  in queue_max_sectors_store()
252 	spin_lock_irq(&q->queue_lock);  in queue_max_sectors_store()
253 	q->limits.max_sectors = max_sectors_kb << 1;  in queue_max_sectors_store()
254 	if (q->disk)  in queue_max_sectors_store()
255 		q->disk->bdi->io_pages = max_sectors_kb >> (PAGE_SHIFT - 10);  in queue_max_sectors_store()
256 	spin_unlock_irq(&q->queue_lock);  in queue_max_sectors_store()
261 static ssize_t queue_max_hw_sectors_show(struct request_queue *q, char *page)  in queue_max_hw_sectors_show()  argument
263 	int max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1;  in queue_max_hw_sectors_show()
268 static ssize_t queue_virt_boundary_mask_show(struct request_queue *q, char *page)  in queue_virt_boundary_mask_show()  argument
270 	return queue_var_show(q->limits.virt_boundary_mask, page);  in queue_virt_boundary_mask_show()
273 static ssize_t queue_dma_alignment_show(struct request_queue *q, char *page)  in queue_dma_alignment_show()  argument
275 	return queue_var_show(queue_dma_alignment(q), page);  in queue_dma_alignment_show()
280 queue_##name##_show(struct request_queue *q, char *page)		\
283 	bit = test_bit(QUEUE_FLAG_##flag, &q->queue_flags);		\
287 queue_##name##_store(struct request_queue *q, const char *page, size_t count) \
298 		blk_queue_flag_set(QUEUE_FLAG_##flag, q);		\
300 		blk_queue_flag_clear(QUEUE_FLAG_##flag, q);		\
310 static ssize_t queue_zoned_show(struct request_queue *q, char *page)  in queue_zoned_show()  argument
312 	switch (blk_queue_zoned_model(q)) {  in queue_zoned_show()
322 static ssize_t queue_nr_zones_show(struct request_queue *q, char *page)  in queue_nr_zones_show()  argument
324 	return queue_var_show(disk_nr_zones(q->disk), page);  in queue_nr_zones_show()
327 static ssize_t queue_max_open_zones_show(struct request_queue *q, char *page)  in queue_max_open_zones_show()  argument
329 	return queue_var_show(bdev_max_open_zones(q->disk->part0), page);  in queue_max_open_zones_show()
332 static ssize_t queue_max_active_zones_show(struct request_queue *q, char *page)  in queue_max_active_zones_show()  argument
334 	return queue_var_show(bdev_max_active_zones(q->disk->part0), page);  in queue_max_active_zones_show()
337 static ssize_t queue_nomerges_show(struct request_queue *q, char *page)  in queue_nomerges_show()  argument
339 	return queue_var_show((blk_queue_nomerges(q) << 1) |  in queue_nomerges_show()
340 			       blk_queue_noxmerges(q), page);  in queue_nomerges_show()
343 static ssize_t queue_nomerges_store(struct request_queue *q, const char *page,  in queue_nomerges_store()  argument
352 	blk_queue_flag_clear(QUEUE_FLAG_NOMERGES, q);  in queue_nomerges_store()
353 	blk_queue_flag_clear(QUEUE_FLAG_NOXMERGES, q);  in queue_nomerges_store()
355 		blk_queue_flag_set(QUEUE_FLAG_NOMERGES, q);  in queue_nomerges_store()
357 		blk_queue_flag_set(QUEUE_FLAG_NOXMERGES, q);  in queue_nomerges_store()
362 static ssize_t queue_rq_affinity_show(struct request_queue *q, char *page)  in queue_rq_affinity_show()  argument
364 	bool set = test_bit(QUEUE_FLAG_SAME_COMP, &q->queue_flags);  in queue_rq_affinity_show()
365 	bool force = test_bit(QUEUE_FLAG_SAME_FORCE, &q->queue_flags);  in queue_rq_affinity_show()
371 queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count)  in queue_rq_affinity_store()  argument
382 		blk_queue_flag_set(QUEUE_FLAG_SAME_COMP, q);  in queue_rq_affinity_store()
383 		blk_queue_flag_set(QUEUE_FLAG_SAME_FORCE, q);  in queue_rq_affinity_store()
385 		blk_queue_flag_set(QUEUE_FLAG_SAME_COMP, q);  in queue_rq_affinity_store()
386 		blk_queue_flag_clear(QUEUE_FLAG_SAME_FORCE, q);  in queue_rq_affinity_store()
388 		blk_queue_flag_clear(QUEUE_FLAG_SAME_COMP, q);  in queue_rq_affinity_store()
389 		blk_queue_flag_clear(QUEUE_FLAG_SAME_FORCE, q);  in queue_rq_affinity_store()
395 static ssize_t queue_poll_delay_show(struct request_queue *q, char *page)  in queue_poll_delay_show()  argument
400 static ssize_t queue_poll_delay_store(struct request_queue *q, const char *page,  in queue_poll_delay_store()  argument
406 static ssize_t queue_poll_show(struct request_queue *q, char *page)  in queue_poll_show()  argument
408 	return queue_var_show(test_bit(QUEUE_FLAG_POLL, &q->queue_flags), page);  in queue_poll_show()
411 static ssize_t queue_poll_store(struct request_queue *q, const char *page,  in queue_poll_store()  argument
414 	if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags))  in queue_poll_store()
421 static ssize_t queue_io_timeout_show(struct request_queue *q, char *page)  in queue_io_timeout_show()  argument
423 	return sprintf(page, "%u\n", jiffies_to_msecs(q->rq_timeout));  in queue_io_timeout_show()
426 static ssize_t queue_io_timeout_store(struct request_queue *q, const char *page,  in queue_io_timeout_store()  argument
436 	blk_queue_rq_timeout(q, msecs_to_jiffies(val));  in queue_io_timeout_store()
441 static ssize_t queue_wc_show(struct request_queue *q, char *page)  in queue_wc_show()  argument
443 	if (test_bit(QUEUE_FLAG_WC, &q->queue_flags))  in queue_wc_show()
449 static ssize_t queue_wc_store(struct request_queue *q, const char *page,  in queue_wc_store()  argument
453 		if (!test_bit(QUEUE_FLAG_HW_WC, &q->queue_flags))  in queue_wc_store()
455 		blk_queue_flag_set(QUEUE_FLAG_WC, q);  in queue_wc_store()
458 		blk_queue_flag_clear(QUEUE_FLAG_WC, q);  in queue_wc_store()
466 static ssize_t queue_fua_show(struct request_queue *q, char *page)  in queue_fua_show()  argument
468 	return sprintf(page, "%u\n", test_bit(QUEUE_FLAG_FUA, &q->queue_flags));  in queue_fua_show()
471 static ssize_t queue_dax_show(struct request_queue *q, char *page)  in queue_dax_show()  argument
473 	return queue_var_show(blk_queue_dax(q), page);  in queue_dax_show()
560 static ssize_t queue_wb_lat_show(struct request_queue *q, char *page)  in queue_wb_lat_show()  argument
562 	if (!wbt_rq_qos(q))  in queue_wb_lat_show()
565 	if (wbt_disabled(q))  in queue_wb_lat_show()
568 	return sprintf(page, "%llu\n", div_u64(wbt_get_min_lat(q), 1000));  in queue_wb_lat_show()
571 static ssize_t queue_wb_lat_store(struct request_queue *q, const char *page,  in queue_wb_lat_store()  argument
584 	rqos = wbt_rq_qos(q);  in queue_wb_lat_store()
586 		ret = wbt_init(q->disk);  in queue_wb_lat_store()
592 		val = wbt_default_latency_nsec(q);  in queue_wb_lat_store()
596 	if (wbt_get_min_lat(q) == val)  in queue_wb_lat_store()
604 	blk_mq_freeze_queue(q);  in queue_wb_lat_store()
605 	blk_mq_quiesce_queue(q);  in queue_wb_lat_store()
607 	wbt_set_min_lat(q, val);  in queue_wb_lat_store()
609 	blk_mq_unquiesce_queue(q);  in queue_wb_lat_store()
610 	blk_mq_unfreeze_queue(q);  in queue_wb_lat_store()
677 	struct request_queue *q = disk->queue;  in queue_attr_visible()  local
681 	    !blk_queue_is_zoned(q))  in queue_attr_visible()
691 	struct request_queue *q = disk->queue;  in blk_mq_queue_attr_visible()  local
693 	if (!queue_is_mq(q))  in blk_mq_queue_attr_visible()
696 	if (attr == &queue_io_timeout_entry.attr && !q->mq_ops->timeout)  in blk_mq_queue_attr_visible()
719 	struct request_queue *q = disk->queue;  in queue_attr_show()  local
724 	mutex_lock(&q->sysfs_lock);  in queue_attr_show()
725 	res = entry->show(q, page);  in queue_attr_show()
726 	mutex_unlock(&q->sysfs_lock);  in queue_attr_show()
736 	struct request_queue *q = disk->queue;  in queue_attr_store()  local
742 	mutex_lock(&q->sysfs_lock);  in queue_attr_store()
743 	res = entry->store(q, page, length);  in queue_attr_store()
744 	mutex_unlock(&q->sysfs_lock);  in queue_attr_store()
772 	struct request_queue *q = disk->queue;  in blk_debugfs_remove()  local
774 	mutex_lock(&q->debugfs_mutex);  in blk_debugfs_remove()
775 	blk_trace_shutdown(q);  in blk_debugfs_remove()
776 	debugfs_remove_recursive(q->debugfs_dir);  in blk_debugfs_remove()
777 	q->debugfs_dir = NULL;  in blk_debugfs_remove()
778 	q->sched_debugfs_dir = NULL;  in blk_debugfs_remove()
779 	q->rqos_debugfs_dir = NULL;  in blk_debugfs_remove()
780 	mutex_unlock(&q->debugfs_mutex);  in blk_debugfs_remove()
789 	struct request_queue *q = disk->queue;  in blk_register_queue()  local
792 	mutex_lock(&q->sysfs_dir_lock);  in blk_register_queue()
798 	if (queue_is_mq(q)) {  in blk_register_queue()
803 	mutex_lock(&q->sysfs_lock);  in blk_register_queue()
805 	mutex_lock(&q->debugfs_mutex);  in blk_register_queue()
806 	q->debugfs_dir = debugfs_create_dir(disk->disk_name, blk_debugfs_root);  in blk_register_queue()
807 	if (queue_is_mq(q))  in blk_register_queue()
808 		blk_mq_debugfs_register(q);  in blk_register_queue()
809 	mutex_unlock(&q->debugfs_mutex);  in blk_register_queue()
815 	if (q->elevator) {  in blk_register_queue()
816 		ret = elv_register_queue(q, false);  in blk_register_queue()
825 	blk_queue_flag_set(QUEUE_FLAG_REGISTERED, q);  in blk_register_queue()
831 	if (q->elevator)  in blk_register_queue()
832 		kobject_uevent(&q->elevator->kobj, KOBJ_ADD);  in blk_register_queue()
833 	mutex_unlock(&q->sysfs_lock);  in blk_register_queue()
834 	mutex_unlock(&q->sysfs_dir_lock);  in blk_register_queue()
845 	if (!blk_queue_init_done(q)) {  in blk_register_queue()
846 		blk_queue_flag_set(QUEUE_FLAG_INIT_DONE, q);  in blk_register_queue()
847 		percpu_ref_switch_to_percpu(&q->q_usage_counter);  in blk_register_queue()
853 	elv_unregister_queue(q);  in blk_register_queue()
858 	mutex_unlock(&q->sysfs_lock);  in blk_register_queue()
861 	mutex_unlock(&q->sysfs_dir_lock);  in blk_register_queue()
874 	struct request_queue *q = disk->queue;  in blk_unregister_queue()  local
876 	if (WARN_ON(!q))  in blk_unregister_queue()
880 	if (!blk_queue_registered(q))  in blk_unregister_queue()
888 	mutex_lock(&q->sysfs_lock);  in blk_unregister_queue()
889 	blk_queue_flag_clear(QUEUE_FLAG_REGISTERED, q);  in blk_unregister_queue()
890 	mutex_unlock(&q->sysfs_lock);  in blk_unregister_queue()
892 	mutex_lock(&q->sysfs_dir_lock);  in blk_unregister_queue()
897 	if (queue_is_mq(q))  in blk_unregister_queue()
901 	mutex_lock(&q->sysfs_lock);  in blk_unregister_queue()
902 	elv_unregister_queue(q);  in blk_unregister_queue()
904 	mutex_unlock(&q->sysfs_lock);  in blk_unregister_queue()
909 	mutex_unlock(&q->sysfs_dir_lock);  in blk_unregister_queue()