120 	struct gendisk *disk;  member
150 #define nbd_name(nbd) ((nbd)->disk->disk_name)
170 	return disk_to_dev(nbd->disk);  in nbd_to_dev()
217 	struct gendisk *disk = dev_to_disk(dev);  in pid_show()  local
218 	struct nbd_device *nbd = (struct nbd_device *)disk->private_data;  in pid_show()
231 	struct gendisk *disk = dev_to_disk(dev);  in backend_show()  local
232 	struct nbd_device *nbd = (struct nbd_device *)disk->private_data;  in backend_show()
244 	struct gendisk *disk = nbd->disk;  in nbd_dev_remove()  local
246 	del_gendisk(disk);  in nbd_dev_remove()
247 	blk_cleanup_disk(disk);  in nbd_dev_remove()
316 		set_capacity(nbd->disk, 0);  in nbd_size_clear()
336 		nbd->disk->queue->limits.discard_granularity = blksize;  in nbd_set_size()
337 		nbd->disk->queue->limits.discard_alignment = blksize;  in nbd_set_size()
338 		blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX);  in nbd_set_size()
340 	blk_queue_logical_block_size(nbd->disk->queue, blksize);  in nbd_set_size()
341 	blk_queue_physical_block_size(nbd->disk->queue, blksize);  in nbd_set_size()
344 		set_bit(GD_NEED_PART_SCAN, &nbd->disk->state);  in nbd_set_size()
345 	if (!set_capacity_and_notify(nbd->disk, bytesize >> 9))  in nbd_set_size()
379 	dev_warn(disk_to_dev(nbd->disk), "shutting down sockets\n");  in sock_shutdown()
499 		dev_err_ratelimited(disk_to_dev(nbd->disk),  in sock_xmit()
569 		dev_err_ratelimited(disk_to_dev(nbd->disk),  in nbd_send_cmd()
627 		dev_err_ratelimited(disk_to_dev(nbd->disk),  in nbd_send_cmd()
668 				dev_err(disk_to_dev(nbd->disk),  in nbd_send_cmd()
711 			dev_err(disk_to_dev(nbd->disk),  in nbd_read_stat()
717 		dev_err(disk_to_dev(nbd->disk), "Wrong magic (0x%lx)\n",  in nbd_read_stat()
729 		dev_err(disk_to_dev(nbd->disk), "Unexpected reply (%d) %p\n",  in nbd_read_stat()
738 		dev_err(disk_to_dev(nbd->disk), "Double reply on req %p, cmd_cookie %u, handle cookie %u\n",  in nbd_read_stat()
744 		dev_err(disk_to_dev(nbd->disk), "Command already handled %p\n",  in nbd_read_stat()
750 		dev_err(disk_to_dev(nbd->disk), "Raced with timeout on req %p\n",  in nbd_read_stat()
756 		dev_err(disk_to_dev(nbd->disk), "Other side returned error (%d)\n",  in nbd_read_stat()
771 				dev_err(disk_to_dev(nbd->disk), "Receive data failed (result %d)\n",  in nbd_read_stat()
845 	blk_mq_quiesce_queue(nbd->disk->queue);  in nbd_clear_que()
847 	blk_mq_unquiesce_queue(nbd->disk->queue);  in nbd_clear_que()
848 	dev_dbg(disk_to_dev(nbd->disk), "queue cleared\n");  in nbd_clear_que()
862 		dev_err_ratelimited(disk_to_dev(nbd->disk),  in find_fallback()
885 			dev_err_ratelimited(disk_to_dev(nbd->disk),  in find_fallback()
915 		dev_err_ratelimited(disk_to_dev(nbd->disk),  in nbd_handle_cmd()
923 		dev_err_ratelimited(disk_to_dev(nbd->disk),  in nbd_handle_cmd()
973 		dev_err_ratelimited(disk_to_dev(nbd->disk),  in nbd_handle_cmd()
1029 		dev_err(disk_to_dev(nbd->disk), "Unsupported socket: shutdown callout must be supported.\n");  in nbd_get_socket()
1055 	blk_mq_freeze_queue(nbd->disk->queue);  in nbd_add_socket()
1064 		dev_err(disk_to_dev(nbd->disk),  in nbd_add_socket()
1095 	blk_mq_unfreeze_queue(nbd->disk->queue);  in nbd_add_socket()
1100 	blk_mq_unfreeze_queue(nbd->disk->queue);  in nbd_add_socket()
1177 		set_disk_ro(nbd->disk, true);  in nbd_parse_flags()
1179 		set_disk_ro(nbd->disk, false);  in nbd_parse_flags()
1181 		blk_queue_flag_set(QUEUE_FLAG_DISCARD, nbd->disk->queue);  in nbd_parse_flags()
1184 			blk_queue_write_cache(nbd->disk->queue, true, true);  in nbd_parse_flags()
1186 			blk_queue_write_cache(nbd->disk->queue, true, false);  in nbd_parse_flags()
1189 		blk_queue_write_cache(nbd->disk->queue, false, false);  in nbd_parse_flags()
1210 			dev_err(disk_to_dev(nbd->disk),  in send_disconnects()
1220 	dev_info(disk_to_dev(nbd->disk), "NBD_DISCONNECT\n");  in nbd_disconnect()
1243 			device_remove_file(disk_to_dev(nbd->disk), &pid_attr);  in nbd_config_put()
1247 			device_remove_file(disk_to_dev(nbd->disk), &backend_attr);  in nbd_config_put()
1268 		nbd->disk->queue->limits.discard_granularity = 0;  in nbd_config_put()
1269 		nbd->disk->queue->limits.discard_alignment = 0;  in nbd_config_put()
1270 		blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX);  in nbd_config_put()
1271 		blk_queue_flag_clear(QUEUE_FLAG_DISCARD, nbd->disk->queue);  in nbd_config_put()
1291 		dev_err(disk_to_dev(nbd->disk), "server does not support multiple connections per device.\n");  in nbd_start_device()
1299 		dev_err(disk_to_dev(nbd->disk), "Could not allocate knbd recv work queue.\n");  in nbd_start_device()
1308 	error = device_create_file(disk_to_dev(nbd->disk), &pid_attr);  in nbd_start_device()
1310 		dev_err(disk_to_dev(nbd->disk), "device_create_file failed for pid!\n");  in nbd_start_device()
1358 		set_bit(GD_NEED_PART_SCAN, &nbd->disk->state);  in nbd_start_device_ioctl()
1391 		blk_queue_rq_timeout(nbd->disk->queue, timeout * HZ);  in nbd_set_cmd_timeout()
1393 		blk_queue_rq_timeout(nbd->disk->queue, 30 * HZ);  in nbd_set_cmd_timeout()
1533 static void nbd_release(struct gendisk *disk, fmode_t mode)  in nbd_release()  argument
1535 	struct nbd_device *nbd = disk->private_data;  in nbd_release()
1538 			disk->part0->bd_openers == 0)  in nbd_release()
1683 	struct gendisk *disk;  in nbd_dev_add()  local
1721 	disk = blk_mq_alloc_disk(&nbd->tag_set, NULL);  in nbd_dev_add()
1722 	if (IS_ERR(disk)) {  in nbd_dev_add()
1723 		err = PTR_ERR(disk);  in nbd_dev_add()
1726 	nbd->disk = disk;  in nbd_dev_add()
1731 	blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue);  in nbd_dev_add()
1732 	blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue);  in nbd_dev_add()
1733 	disk->queue->limits.discard_granularity = 0;  in nbd_dev_add()
1734 	disk->queue->limits.discard_alignment = 0;  in nbd_dev_add()
1735 	blk_queue_max_discard_sectors(disk->queue, 0);  in nbd_dev_add()
1736 	blk_queue_max_segment_size(disk->queue, UINT_MAX);  in nbd_dev_add()
1737 	blk_queue_max_segments(disk->queue, USHRT_MAX);  in nbd_dev_add()
1738 	blk_queue_max_hw_sectors(disk->queue, 65536);  in nbd_dev_add()
1739 	disk->queue->limits.max_sectors = 256;  in nbd_dev_add()
1749 	disk->major = NBD_MAJOR;  in nbd_dev_add()
1755 	disk->first_minor = index << part_shift;  in nbd_dev_add()
1756 	if (disk->first_minor > 0xff) {  in nbd_dev_add()
1761 	disk->minors = 1 << part_shift;  in nbd_dev_add()
1762 	disk->fops = &nbd_fops;  in nbd_dev_add()
1763 	disk->private_data = nbd;  in nbd_dev_add()
1764 	sprintf(disk->disk_name, "nbd%d", index);  in nbd_dev_add()
1765 	add_disk(disk);  in nbd_dev_add()
2001 	ret = device_create_file(disk_to_dev(nbd->disk), &backend_attr);  in nbd_genl_connect()
2003 		dev_err(disk_to_dev(nbd->disk),  in nbd_genl_connect()