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-   -   dm co add integrity feature to request-based dm (http://www.linux-archive.org/device-mapper-development/265351-dm-co-add-integrity-feature-request-based-dm.html)

Kiyoshi Ueda 03-18-2009 07:58 AM

dm co add integrity feature to request-based dm
 
This patch clones integrity payload in request-based dm code path.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Alasdair G Kergon <agk@redhat.com>
---
drivers/md/dm.c | 5 +++++
1 file changed, 5 insertions(+)

Index: 2.6.29-rc8/drivers/md/dm.c
================================================== =================
--- 2.6.29-rc8.orig/drivers/md/dm.c
+++ 2.6.29-rc8/drivers/md/dm.c
@@ -1385,6 +1385,11 @@ static int clone_request_bios(struct req
}

__bio_clone(clone_bio, bio);
+ if (bio_integrity(bio))
+ if (bio_integrity_clone(clone_bio, bio, GFP_ATOMIC,
+ md->bs) < 0)
+ goto free_and_out;
+
clone_bio->bi_destructor = dm_bio_destructor;
clone_bio->bi_end_io = end_clone_bio;
info->rq = clone;

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