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-rw-r--r--block/blk-mq-sched.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index 42a365b1b9c0..996a4b2f73aa 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -358,14 +358,16 @@ bool __blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio,
unsigned int nr_segs)
{
struct elevator_queue *e = q->elevator;
- struct blk_mq_ctx *ctx = blk_mq_get_ctx(q);
- struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, bio->bi_opf, ctx);
+ struct blk_mq_ctx *ctx;
+ struct blk_mq_hw_ctx *hctx;
bool ret = false;
enum hctx_type type;
if (e && e->type->ops.bio_merge)
- return e->type->ops.bio_merge(hctx, bio, nr_segs);
+ return e->type->ops.bio_merge(q, bio, nr_segs);
+ ctx = blk_mq_get_ctx(q);
+ hctx = blk_mq_map_queue(q, bio->bi_opf, ctx);
type = hctx->type;
if (!(hctx->flags & BLK_MQ_F_SHOULD_MERGE) ||
list_empty_careful(&ctx->rq_lists[type]))

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