539 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
541 	if (!bl2->head)  in bio_list_merge()
545 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
547 		bl->head = bl2->head;  in bio_list_merge()
549 	bl->tail = bl2->tail;  in bio_list_merge()
553 		struct bio_list *bl2)  in bio_list_merge_init()  argument
555 	bio_list_merge(bl, bl2);  in bio_list_merge_init()
556 	bio_list_init(bl2);  in bio_list_merge_init()
560 				       struct bio_list *bl2)  in bio_list_merge_head()  argument
562 	if (!bl2->head)  in bio_list_merge_head()
566 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
568 		bl->tail = bl2->tail;  in bio_list_merge_head()
570 	bl->head = bl2->head;  in bio_list_merge_head()