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 b36231866336a4895a69148b9241db5c0f9590f6..0a3988a25aabbfafff455f874e5850861e6da9eb 100644 (file)
--- 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;
 }