From: Martin K. Petersen <martin.petersen@oracle.com>
Date: Tue, 21 Oct 2008 16:45:04 +0000 (+0100)
Subject: dm: mark split bio as cloned
X-Git-Tag: v2.6.28-rc1~41^2~3
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=f3e1d26ede3fb15c06904d700f1d7b21bba2215e;p=~shefty%2Frdma-dev.git

dm: mark split bio as cloned

When a bio gets split, mark its fragments with the BIO_CLONED flag.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 327de03a5bd..829d9fc6645 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -669,6 +669,7 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector,
 	clone->bi_size = to_bytes(len);
 	clone->bi_io_vec->bv_offset = offset;
 	clone->bi_io_vec->bv_len = clone->bi_size;
+	clone->bi_flags |= 1 << BIO_CLONED;
 
 	return clone;
 }