diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c
index b4f44662cda7ced99a15ffdb8e1e2dd0651855b4..c5275cb238377aaeba15708c3a868bae4b6cac66 100644
--- a/fs/btrfs/zlib.c
+++ b/fs/btrfs/zlib.c
@@ -155,8 +155,8 @@ int zlib_compress_pages(struct list_head *ws, struct address_space *mapping,
 					in_page = find_get_page(mapping,
 								start >> PAGE_SHIFT);
 					data_in = kmap_local_page(in_page);
-					memcpy(workspace->buf + i * PAGE_SIZE,
-					       data_in, PAGE_SIZE);
+					copy_page(workspace->buf + i * PAGE_SIZE,
+						  data_in);
 					start += PAGE_SIZE;
 				}
 				workspace->strm.next_in = workspace->buf;