622 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
624 	return bl->head == NULL;  in bio_list_empty()
627 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
629 	bl->head = bl->tail = NULL;  in bio_list_init()
634 #define bio_list_for_each(bio, bl) \  argument
635 	for (bio = (bl)->head; bio; bio = bio->bi_next)
637 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
642 	bio_list_for_each(bio, bl)  in bio_list_size()
648 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
652 	if (bl->tail)  in bio_list_add()
653 		bl->tail->bi_next = bio;  in bio_list_add()
655 		bl->head = bio;  in bio_list_add()
657 	bl->tail = bio;  in bio_list_add()
660 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)  in bio_list_add_head()  argument
662 	bio->bi_next = bl->head;  in bio_list_add_head()
664 	bl->head = bio;  in bio_list_add_head()
666 	if (!bl->tail)  in bio_list_add_head()
667 		bl->tail = bio;  in bio_list_add_head()
670 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
675 	if (bl->tail)  in bio_list_merge()
676 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
678 		bl->head = bl2->head;  in bio_list_merge()
680 	bl->tail = bl2->tail;  in bio_list_merge()
683 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
689 	if (bl->head)  in bio_list_merge_head()
690 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
692 		bl->tail = bl2->tail;  in bio_list_merge_head()
694 	bl->head = bl2->head;  in bio_list_merge_head()
697 static inline struct bio *bio_list_peek(struct bio_list *bl)  in bio_list_peek()  argument
699 	return bl->head;  in bio_list_peek()
702 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
704 	struct bio *bio = bl->head;  in bio_list_pop()
707 		bl->head = bl->head->bi_next;  in bio_list_pop()
708 		if (!bl->head)  in bio_list_pop()
709 			bl->tail = NULL;  in bio_list_pop()
717 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
719 	struct bio *bio = bl->head;  in bio_list_get()
721 	bl->head = bl->tail = NULL;  in bio_list_get()