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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2014-09-26 19:20:06 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-09-27 09:14:57 -0600 |
| commit | 4eaf99beadcefbf126fa05e66fb40fca999e09fd (patch) | |
| tree | e91203868eb48cdf06dd575e7d3f3569d6b6bfc9 /block/blk-merge.c | |
| parent | aae7df50190a640e51bfe11c93f94741ac82ff0b (diff) | |
| download | lwn-4eaf99beadcefbf126fa05e66fb40fca999e09fd.tar.gz lwn-4eaf99beadcefbf126fa05e66fb40fca999e09fd.zip | |
block: Don't merge requests if integrity flags differ
We'd occasionally merge requests with conflicting integrity flags.
Introduce a merge helper which checks that the requests have compatible
integrity payloads.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-merge.c')
| -rw-r--r-- | block/blk-merge.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c index 77881798f793..f71bad35b4cc 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -313,7 +313,7 @@ static inline int ll_new_hw_segment(struct request_queue *q, if (req->nr_phys_segments + nr_phys_segs > queue_max_segments(q)) goto no_merge; - if (bio_integrity(bio) && blk_integrity_merge_bio(q, req, bio)) + if (blk_integrity_merge_bio(q, req, bio) == false) goto no_merge; /* @@ -410,7 +410,7 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req, if (total_phys_segments > queue_max_segments(q)) return 0; - if (blk_integrity_rq(req) && blk_integrity_merge_rq(q, req, next)) + if (blk_integrity_merge_rq(q, req, next) == false) return 0; /* Merge is OK... */ @@ -590,7 +590,7 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio) return false; /* only merge integrity protected bio into ditto rq */ - if (bio_integrity(bio) != blk_integrity_rq(rq)) + if (blk_integrity_merge_bio(rq->q, rq, bio) == false) return false; /* must be using the same buffer */ |