234 	bool use_blk_mq;  member
238 static bool use_blk_mq = true;  variable
240 static bool use_blk_mq = false;  variable
245 	return md->use_blk_mq;  in dm_use_blk_mq()
2047 	if (!dm_request_based(md) || md->use_blk_mq)  in dm_attr_rq_based_seq_io_merge_deadline_store()
2242 	md->use_blk_mq = false;  in dm_init_old_md_queue()
2311 	md->use_blk_mq = use_blk_mq;  in alloc_dev()
2395 	if (md->use_blk_mq)  in free_dev()
2765 	return !md->use_blk_mq ? DM_TYPE_REQUEST_BASED : DM_TYPE_MQ_REQUEST_BASED;  in filter_md_type()
3700 module_param(use_blk_mq, bool, S_IRUGO | S_IWUSR);
3701 MODULE_PARM_DESC(use_blk_mq, "Use block multiqueue for request-based DM devices");