diff --git a/block/bio.c b/block/bio.c
index 38baedb39c6f..d82ef4fd545c 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -345,17 +345,28 @@ void bio_chain(struct bio *bio, struct bio *parent)
 }
 EXPORT_SYMBOL(bio_chain);
 
+/**
+ * bio_chain_and_submit - submit a bio after chaining it to another one
+ * @prev: bio to chain and submit
+ * @new: bio to chain to
+ *
+ * If @prev is non-NULL, chain it to @new and submit it.
+ *
+ * Return: @new.
+ */
+struct bio *bio_chain_and_submit(struct bio *prev, struct bio *new)
+{
+	if (prev) {
+		bio_chain(prev, new);
+		submit_bio(prev);
+	}
+	return new;
+}
+
 struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
 		unsigned int nr_pages, blk_opf_t opf, gfp_t gfp)
 {
-	struct bio *new = bio_alloc(bdev, nr_pages, opf, gfp);
-
-	if (bio) {
-		bio_chain(bio, new);
-		submit_bio(bio);
-	}
-
-	return new;
+	return bio_chain_and_submit(bio, bio_alloc(bdev, nr_pages, opf, gfp));
 }
 EXPORT_SYMBOL_GPL(blk_next_bio);
 
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 9b8a369f44bc..283a0dcbd1de 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -831,5 +831,6 @@ static inline void bio_clear_polled(struct bio *bio)
 
 struct bio *blk_next_bio(struct bio *bio, struct block_device *bdev,
 		unsigned int nr_pages, blk_opf_t opf, gfp_t gfp);
+struct bio *bio_chain_and_submit(struct bio *prev, struct bio *new);
 
 #endif /* __LINUX_BIO_H */