linux-kernel - [PATCH 21/27] raid1: use bio_copy

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Message-Id: <1361319761-23873-22-git-send-email-koverstreet@google.com>
Date:	Tue, 19 Feb 2013 16:22:35 -0800
From:	Kent Overstreet <koverstreet@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	Kent Overstreet <koverstreet@...gle.com>, axboe@...nel.dk,
	NeilBrown <neilb@...e.de>
Subject: [PATCH 21/27] raid1: use bio_copy_data()

This doesn't really delete any code _yet_, but once immutable bvecs are
done we can just delete the rest of the code in that loop.

Signed-off-by: Kent Overstreet <koverstreet@...gle.com>
CC: Jens Axboe <axboe@...nel.dk>
CC: NeilBrown <neilb@...e.de>
---
 drivers/md/raid1.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 8839b8d..1fd0888 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1903,10 +1903,9 @@ static int process_checks(struct r1bio *r1_bio)
 			else
 				bi->bv_len = size;
 			size -= PAGE_SIZE;
-			memcpy(page_address(bi->bv_page),
-			       page_address(pbio->bi_io_vec[j].bv_page),
-			       PAGE_SIZE);
 		}
+
+		bio_copy_data(sbio, pbio);
 	}
 	return 0;
 }
-- 
1.7.12

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