536 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
538 	if (!bl2->head)  in bio_list_merge()
542 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
544 		bl->head = bl2->head;  in bio_list_merge()
546 	bl->tail = bl2->tail;  in bio_list_merge()
550 		struct bio_list *bl2)  in bio_list_merge_init()  argument
552 	bio_list_merge(bl, bl2);  in bio_list_merge_init()
553 	bio_list_init(bl2);  in bio_list_merge_init()
557 				       struct bio_list *bl2)  in bio_list_merge_head()  argument
559 	if (!bl2->head)  in bio_list_merge_head()
563 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
565 		bl->tail = bl2->tail;  in bio_list_merge_head()
567 	bl->head = bl2->head;  in bio_list_merge_head()