There's one case that doesn't look like it was converted properly, but
that's a mistake. The general insert-and-run cases run inline if we can,
but the direct-issue needs a fixup, see below.

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 159187a28d66..4196d6bee92d 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c

@@ -1434,7 +1434,8 @@ static blk_qc_t request_to_qc_t(struct blk_mq_hw_ctx *hctx, struct request *rq)
        return blk_tag_to_qc_t(rq->internal_tag, hctx->queue_num, true);
 }

-static void blk_mq_try_issue_directly(struct request *rq, blk_qc_t *cookie)
+static void blk_mq_try_issue_directly(struct request *rq, blk_qc_t *cookie,
+                                     bool can_block)
 {
        struct request_queue *q = rq->q;
        struct blk_mq_queue_data bd = {

@@ -1475,7 +1476,7 @@ static void blk_mq_try_issue_directly(struct request *rq, blk_qc_t *cookie)
        }

 insert:
-       blk_mq_sched_insert_request(rq, false, true, true, false);
+       blk_mq_sched_insert_request(rq, false, true, false, can_block);
 }

 /*

@@ -1569,11 +1570,11 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)

                if (!(data.hctx->flags & BLK_MQ_F_BLOCKING)) {
                        rcu_read_lock();
-                       blk_mq_try_issue_directly(old_rq, &cookie);
+                       blk_mq_try_issue_directly(old_rq, &cookie, false);
                        rcu_read_unlock();
                } else {
                        srcu_idx = srcu_read_lock(&data.hctx->queue_rq_srcu);
-                       blk_mq_try_issue_directly(old_rq, &cookie);
+                       blk_mq_try_issue_directly(old_rq, &cookie, true);
                        srcu_read_unlock(&data.hctx->queue_rq_srcu, srcu_idx);
                }
                goto done;