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-rw-r--r--block/blk-merge.c19
1 files changed, 4 insertions, 15 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 574ea7c0468f..c4e9c37f3e38 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -66,15 +66,12 @@ static struct bio *blk_bio_segment_split(struct request_queue *q,
struct bio *bio,
struct bio_set *bs)
{
- struct bio *split;
struct bio_vec bv, bvprv, *bvprvp = NULL;
struct bvec_iter iter;
unsigned seg_size = 0, nsegs = 0, sectors = 0;
bio_for_each_segment(bv, bio, iter) {
- sectors += bv.bv_len >> 9;
-
- if (sectors > queue_max_sectors(q))
+ if (sectors + (bv.bv_len >> 9) > queue_max_sectors(q))
goto split;
/*
@@ -95,6 +92,7 @@ static struct bio *blk_bio_segment_split(struct request_queue *q,
seg_size += bv.bv_len;
bvprv = bv;
bvprvp = &bv;
+ sectors += bv.bv_len >> 9;
continue;
}
new_segment:
@@ -105,21 +103,12 @@ new_segment:
bvprv = bv;
bvprvp = &bv;
seg_size = bv.bv_len;
+ sectors += bv.bv_len >> 9;
}
return NULL;
split:
- split = bio_clone_bioset(bio, GFP_NOIO, bs);
-
- split->bi_iter.bi_size -= iter.bi_size;
- bio->bi_iter = iter;
-
- if (bio_integrity(bio)) {
- bio_integrity_advance(bio, split->bi_iter.bi_size);
- bio_integrity_trim(split, 0, bio_sectors(split));
- }
-
- return split;
+ return bio_split(bio, sectors, GFP_NOIO, bs);
}
void blk_queue_split(struct request_queue *q, struct bio **bio,