[dm-devel] [PATCH 2/7] dm core: add integrity feature to request-based dm
Kiyoshi Ueda
k-ueda at ct.jp.nec.com
Fri Apr 24 08:13:28 UTC 2009
This patch clones integrity payload in request-based dm code path.
Signed-off-by: Kiyoshi Ueda <k-ueda at ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura at ce.jp.nec.com>
Cc: Alasdair G Kergon <agk at redhat.com>
---
drivers/md/dm.c | 8 ++++++++
1 file changed, 8 insertions(+)
Index: 2.6.30-rc3/drivers/md/dm.c
===================================================================
--- 2.6.30-rc3.orig/drivers/md/dm.c
+++ 2.6.30-rc3/drivers/md/dm.c
@@ -1375,6 +1375,14 @@ static int clone_request_bios(struct req
}
__bio_clone(clone_bio, bio);
+
+ if (bio_integrity(bio) &&
+ !bio_integrity_clone(clone_bio, bio, GFP_ATOMIC)) {
+ bio_free(clone_bio, md->bs);
+ free_bio_info(md, info);
+ 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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