blk_mq_map_queue_type
struct blk_mq_hw_ctx *h = blk_mq_map_queue_type(hctx->queue,
struct blk_mq_hw_ctx *mapped_hctx = blk_mq_map_queue_type(hctx->queue,
hctx = blk_mq_map_queue_type(q, j, i);
ctx->hctxs[j] = blk_mq_map_queue_type(q,
hctx = blk_mq_map_queue_type(q, j, i);
ctx->hctxs[j] = blk_mq_map_queue_type(q,