# \[PATCH v3 19/26\] raid1: use bio\_copy\_data()

- From: Kent Overstreet \<hidden\>
- Date: 2012-09-24 22:38:47 
- List: linux-bcache
- Page: https://ratatoskr.run/linux-bcache/2012/09/3928120
- Thread: https://ratatoskr.run/linux-bcache/2012/09/3928106/t.md

```text
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 <redacted>
CC: Jens Axboe <axboe@kernel.dk>
CC: NeilBrown <redacted>
---
 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 af39f74..1c40d90 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1895,10 +1895,9 @@ 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
```