[PATCH] blk-mq: set the nr_integrity_segments from bio

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From: Keith Busch <kbusch@xxxxxxxxxx>

This value is used for potential merging later.

Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx>
---
 block/blk-mq.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 36abbaefe3874..56bcb599d8660 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2546,6 +2546,9 @@ static void blk_mq_bio_to_request(struct request *rq, struct bio *bio,
 	rq->__sector = bio->bi_iter.bi_sector;
 	rq->write_hint = bio->bi_write_hint;
 	blk_rq_bio_prep(rq, bio, nr_segs);
+#if defined(CONFIG_BLK_DEV_INTEGRITY)
+	rq->nr_integrity_segments = blk_rq_count_integrity_sg(rq->q, bio);
+#endif
 
 	/* This can't fail, since GFP_NOIO includes __GFP_DIRECT_RECLAIM. */
 	err = blk_crypto_rq_bio_prep(rq, bio, GFP_NOIO);
-- 
2.43.5






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