From d3b45c2a056c5df443d1ddf27fbfada65f234af1 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <koverstreet@google.com>
Date: Mon, 10 Sep 2012 13:49:33 -0700
Subject: 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@google.com>
CC: Jens Axboe <axboe@kernel.dk>
CC: NeilBrown <neilb@suse.de>

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index b362318..0a3988a 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1906,10 +1906,9 @@ 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;
 }
-- 
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