[dm-devel] [PATCH 09/15] bcache: use bvec_virt

[Christoph Hellwig]

Use bvec_virt instead of open coding it.  Note that the existing code is
fine despite ignoring bv_offset as the bio is known to contain exactly
one page from the page allocator per bio_vec.

Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 drivers/md/bcache/btree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 183a58c89377..0595559de174 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -378,7 +378,7 @@ static void do_btree_node_write(struct btree *b)
 		struct bvec_iter_all iter_all;
 
 		bio_for_each_segment_all(bv, b->bio, iter_all) {
-			memcpy(page_address(bv->bv_page), addr, PAGE_SIZE);
+			memcpy(bvec_virt(bv), addr, PAGE_SIZE);
 			addr += PAGE_SIZE;
 		}
 
-- 
2.30.2