diff --git a/block/blk-core.c b/block/blk-core.c
index b60537b..c502277 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1523,6 +1523,7 @@
  * blk_add_request_payload - add a payload to a request
  * @rq: request to update
  * @page: page backing the payload
+ * @offset: offset in page
  * @len: length of the payload.
  *
  * This allows to later add a payload to an already submitted request by
@@ -1533,12 +1534,12 @@
  * discard requests should ever use it.
  */
 void blk_add_request_payload(struct request *rq, struct page *page,
-		unsigned int len)
+		int offset, unsigned int len)
 {
 	struct bio *bio = rq->bio;
 
 	bio->bi_io_vec->bv_page = page;
-	bio->bi_io_vec->bv_offset = 0;
+	bio->bi_io_vec->bv_offset = offset;
 	bio->bi_io_vec->bv_len = len;
 
 	bio->bi_iter.bi_size = len;