diff --git a/block/blk-core.c b/block/blk-core.c
index c426970..a6bd3e7 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1233,12 +1233,15 @@
 static void part_round_stats_single(int cpu, struct hd_struct *part,
 				    unsigned long now)
 {
+	int inflight;
+
 	if (now == part->stamp)
 		return;
 
-	if (part_in_flight(part)) {
+	inflight = part_in_flight(part);
+	if (inflight) {
 		__part_stat_add(cpu, part, time_in_queue,
-				part_in_flight(part) * (now - part->stamp));
+				inflight * (now - part->stamp));
 		__part_stat_add(cpu, part, io_ticks, (now - part->stamp));
 	}
 	part->stamp = now;
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 9f07a26..526feee 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1088,17 +1088,15 @@
 	}
 
 	if (!(hctx->flags & BLK_MQ_F_SHOULD_MERGE)) {
-		init_request_from_bio(rq, bio);
-
+		blk_mq_bio_to_request(rq, bio);
 		spin_lock(&ctx->lock);
 insert_rq:
 		__blk_mq_insert_request(hctx, rq, false);
 		spin_unlock(&ctx->lock);
-		blk_account_io_start(rq, 1);
 	} else {
 		spin_lock(&ctx->lock);
 		if (!blk_mq_attempt_merge(q, ctx, bio)) {
-			init_request_from_bio(rq, bio);
+			blk_mq_bio_to_request(rq, bio);
 			goto insert_rq;
 		}