[PATCHv3 01/10] blk-mq: set the nr_integrity_segments from bio

[Keith Busch]

From: Keith Busch <kbusch at kernel.org>

This value is used for potential merging later.

Signed-off-by: Keith Busch <kbusch at kernel.org>
---
 block/blk-mq.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 36abbaefe3874..3ed5181c75610 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2546,6 +2546,10 @@ 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)
+	if (bio->bi_opf & REQ_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