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-rw-r--r--block/blk-integrity.c36
1 files changed, 26 insertions, 10 deletions
diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 1c6ba442cd91..79ffb4855af0 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -186,37 +186,53 @@ int blk_integrity_compare(struct gendisk *gd1, struct gendisk *gd2)
}
EXPORT_SYMBOL(blk_integrity_compare);
-int blk_integrity_merge_rq(struct request_queue *q, struct request *req,
- struct request *next)
+bool blk_integrity_merge_rq(struct request_queue *q, struct request *req,
+ struct request *next)
{
- if (blk_integrity_rq(req) != blk_integrity_rq(next))
- return -1;
+ if (blk_integrity_rq(req) == 0 && blk_integrity_rq(next) == 0)
+ return true;
+
+ if (blk_integrity_rq(req) == 0 || blk_integrity_rq(next) == 0)
+ return false;
+
+ if (bio_integrity(req->bio)->bip_flags !=
+ bio_integrity(next->bio)->bip_flags)
+ return false;
if (req->nr_integrity_segments + next->nr_integrity_segments >
q->limits.max_integrity_segments)
- return -1;
+ return false;
- return 0;
+ return true;
}
EXPORT_SYMBOL(blk_integrity_merge_rq);
-int blk_integrity_merge_bio(struct request_queue *q, struct request *req,
- struct bio *bio)
+bool blk_integrity_merge_bio(struct request_queue *q, struct request *req,
+ struct bio *bio)
{
int nr_integrity_segs;
struct bio *next = bio->bi_next;
+ if (blk_integrity_rq(req) == 0 && bio_integrity(bio) == NULL)
+ return true;
+
+ if (blk_integrity_rq(req) == 0 || bio_integrity(bio) == NULL)
+ return false;
+
+ if (bio_integrity(req->bio)->bip_flags != bio_integrity(bio)->bip_flags)
+ return false;
+
bio->bi_next = NULL;
nr_integrity_segs = blk_rq_count_integrity_sg(q, bio);
bio->bi_next = next;
if (req->nr_integrity_segments + nr_integrity_segs >
q->limits.max_integrity_segments)
- return -1;
+ return false;
req->nr_integrity_segments += nr_integrity_segs;
- return 0;
+ return true;
}
EXPORT_SYMBOL(blk_integrity_merge_bio);