25 	ssize_t (*show)(struct gendisk *disk, char *page);
26 	ssize_t (*show_limit)(struct gendisk *disk, char *page);
28 	ssize_t (*store)(struct gendisk *disk, const char *page, size_t count);
29 	int (*store_limit)(struct gendisk *disk, const char *page,
34 queue_var_show(unsigned long var, char *page)  in queue_var_show()  argument
36 	return sysfs_emit(page, "%lu\n", var);  in queue_var_show()
40 queue_var_store(unsigned long *var, const char *page, size_t count)  in queue_var_store()  argument
45 	err = kstrtoul(page, 10, &v);  in queue_var_store()
54 static ssize_t queue_requests_show(struct gendisk *disk, char *page)  in queue_requests_show()  argument
59 	ret = queue_var_show(disk->queue->nr_requests, page);  in queue_requests_show()
65 queue_requests_store(struct gendisk *disk, const char *page, size_t count)  in queue_requests_store()  argument
74 	ret = queue_var_store(&nr, page, count);  in queue_requests_store()
136 static ssize_t queue_async_depth_show(struct gendisk *disk, char *page)  in queue_async_depth_show()  argument
140 	return queue_var_show(disk->queue->async_depth, page);  in queue_async_depth_show()
144 queue_async_depth_store(struct gendisk *disk, const char *page, size_t count)  in queue_async_depth_store()  argument
154 	ret = queue_var_store(&nr, page, count);  in queue_async_depth_store()
176 static ssize_t queue_ra_show(struct gendisk *disk, char *page)  in queue_ra_show()  argument
181 	ret = queue_var_show(disk->bdi->ra_pages << (PAGE_SHIFT - 10), page);  in queue_ra_show()
188 queue_ra_store(struct gendisk *disk, const char *page, size_t count)  in queue_ra_store()  argument
194 	ret = queue_var_store(&ra_kb, page, count);  in queue_ra_store()
213 static ssize_t queue_##_field##_show(struct gendisk *disk, char *page)	\
215 	return queue_var_show(disk->queue->limits._field, page);	\
239 static ssize_t queue_##_field##_show(struct gendisk *disk, char *page)	\  in QUEUE_SYSFS_LIMIT_SHOW()
241 	return sysfs_emit(page, "%llu\n",				\  in QUEUE_SYSFS_LIMIT_SHOW()
256 static ssize_t queue_##_field##_show(struct gendisk *disk, char *page)	\
258 	return queue_var_show(disk->queue->limits._field >> 1, page);	\
265 static ssize_t queue_##_name##_show(struct gendisk *disk, char *page)	\
267 	return sysfs_emit(page, "%d\n", _val);				\
276 		const char *page, size_t count, struct queue_limits *lim)
281 	ret = queue_var_store(&max_discard_bytes, page, count);
296 		const char *page, size_t count, struct queue_limits *lim)  in queue_max_wzeroes_unmap_sectors_store()  argument
301 	ret = queue_var_store(&max_zeroes_bytes, page, count);  in queue_max_wzeroes_unmap_sectors_store()
314 queue_max_sectors_store(struct gendisk *disk, const char *page, size_t count,  in queue_max_sectors_store()  argument
320 	ret = queue_var_store(&max_sectors_kb, page, count);  in queue_max_sectors_store()
328 static ssize_t queue_feature_store(struct gendisk *disk, const char *page,  in queue_feature_store()  argument
334 	ret = queue_var_store(&val, page, count);  in queue_feature_store()
346 static ssize_t queue_##_name##_show(struct gendisk *disk, char *page)	\
348 	return sysfs_emit(page, "%u\n",					\
352 		const char *page, size_t count, struct queue_limits *lim) \
354 	return queue_feature_store(disk, page, count, lim, _feature);	\
363 static ssize_t queue_##_name##_show(struct gendisk *disk, char *page)	\
365 	return sysfs_emit(page, "%u\n",					\
372 static ssize_t queue_poll_show(struct gendisk *disk, char *page)  in queue_poll_show()  argument
375 		return sysfs_emit(page, "%u\n", blk_mq_can_poll(disk->queue));  in queue_poll_show()
377 	return sysfs_emit(page, "%u\n",  in queue_poll_show()
381 static ssize_t queue_zoned_show(struct gendisk *disk, char *page)  in queue_zoned_show()  argument
384 		return sysfs_emit(page, "host-managed\n");  in queue_zoned_show()
385 	return sysfs_emit(page, "none\n");  in queue_zoned_show()
388 static ssize_t queue_nr_zones_show(struct gendisk *disk, char *page)  in queue_nr_zones_show()  argument
390 	return queue_var_show(disk_nr_zones(disk), page);  in queue_nr_zones_show()
393 static ssize_t queue_zoned_qd1_writes_show(struct gendisk *disk, char *page)  in queue_zoned_qd1_writes_show()  argument
396 			      page);  in queue_zoned_qd1_writes_show()
400 					    const char *page, size_t count)  in queue_zoned_qd1_writes_store()  argument
407 	ret = queue_var_store(&qd1_writes, page, count);  in queue_zoned_qd1_writes_store()
423 static ssize_t queue_iostats_passthrough_show(struct gendisk *disk, char *page)  in queue_iostats_passthrough_show()  argument
425 	return queue_var_show(!!blk_queue_passthrough_stat(disk->queue), page);  in queue_iostats_passthrough_show()
429 		const char *page, size_t count, struct queue_limits *lim)  in queue_iostats_passthrough_store()  argument
434 	ret = queue_var_store(&ios, page, count);  in queue_iostats_passthrough_store()
445 static ssize_t queue_nomerges_show(struct gendisk *disk, char *page)  in queue_nomerges_show()  argument
448 			       blk_queue_noxmerges(disk->queue), page);  in queue_nomerges_show()
451 static ssize_t queue_nomerges_store(struct gendisk *disk, const char *page,  in queue_nomerges_store()  argument
456 	ssize_t ret = queue_var_store(&nm, page, count);  in queue_nomerges_store()
471 static ssize_t queue_rq_affinity_show(struct gendisk *disk, char *page)  in queue_rq_affinity_show()  argument
476 	return queue_var_show(set << force, page);  in queue_rq_affinity_show()
480 queue_rq_affinity_store(struct gendisk *disk, const char *page, size_t count)  in queue_rq_affinity_store()  argument
487 	ret = queue_var_store(&val, page, count);  in queue_rq_affinity_store()
511 static ssize_t queue_poll_delay_store(struct gendisk *disk, const char *page,  in queue_poll_delay_store()  argument
517 static ssize_t queue_poll_store(struct gendisk *disk, const char *page,  in queue_poll_store()  argument
534 static ssize_t queue_io_timeout_show(struct gendisk *disk, char *page)  in queue_io_timeout_show()  argument
536 	return sysfs_emit(page, "%u\n",  in queue_io_timeout_show()
540 static ssize_t queue_io_timeout_store(struct gendisk *disk, const char *page,  in queue_io_timeout_store()  argument
547 	err = kstrtou32(page, 10, &val);  in queue_io_timeout_store()
556 static ssize_t queue_wc_show(struct gendisk *disk, char *page)  in queue_wc_show()  argument
559 		return sysfs_emit(page, "write back\n");  in queue_wc_show()
560 	return sysfs_emit(page, "write through\n");  in queue_wc_show()
563 static int queue_wc_store(struct gendisk *disk, const char *page,  in queue_wc_store()  argument
568 	if (!strncmp(page, "write back", 10)) {  in queue_wc_store()
570 	} else if (!strncmp(page, "write through", 13) ||  in queue_wc_store()
571 		   !strncmp(page, "none", 4)) {  in queue_wc_store()
679 static ssize_t queue_var_store64(s64 *var, const char *page)  in queue_var_store64()  argument
684 	err = kstrtos64(page, 10, &v);  in queue_var_store64()
692 static ssize_t queue_wb_lat_show(struct gendisk *disk, char *page)  in queue_wb_lat_show()  argument
704 		ret = sysfs_emit(page, "0\n");  in queue_wb_lat_show()
708 	ret = sysfs_emit(page, "%llu\n", div_u64(wbt_get_min_lat(q), 1000));  in queue_wb_lat_show()
714 static ssize_t queue_wb_lat_store(struct gendisk *disk, const char *page,  in queue_wb_lat_store()  argument
720 	ret = queue_var_store64(&val, page);  in queue_wb_lat_store()
857 queue_attr_show(struct kobject *kobj, struct attribute *attr, char *page)  in queue_attr_show()  argument
869 		res = entry->show_limit(disk, page);  in queue_attr_show()
874 	return entry->show(disk, page);  in queue_attr_show()
879 		    const char *page, size_t length)  in queue_attr_store()  argument
893 		res = entry->store_limit(disk, page, length, &lim);  in queue_attr_store()
905 	return entry->store(disk, page, length);  in queue_attr_store()