579 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
581 	return bl->head == NULL;  in bio_list_empty()
584 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
586 	bl->head = bl->tail = NULL;  in bio_list_init()
591 #define bio_list_for_each(bio, bl) \  argument
592 	for (bio = (bl)->head; bio; bio = bio->bi_next)
594 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
599 	bio_list_for_each(bio, bl)  in bio_list_size()
605 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
609 	if (bl->tail)  in bio_list_add()
610 		bl->tail->bi_next = bio;  in bio_list_add()
612 		bl->head = bio;  in bio_list_add()
614 	bl->tail = bio;  in bio_list_add()
617 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)  in bio_list_add_head()  argument
619 	bio->bi_next = bl->head;  in bio_list_add_head()
621 	bl->head = bio;  in bio_list_add_head()
623 	if (!bl->tail)  in bio_list_add_head()
624 		bl->tail = bio;  in bio_list_add_head()
627 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
632 	if (bl->tail)  in bio_list_merge()
633 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
635 		bl->head = bl2->head;  in bio_list_merge()
637 	bl->tail = bl2->tail;  in bio_list_merge()
640 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
646 	if (bl->head)  in bio_list_merge_head()
647 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
649 		bl->tail = bl2->tail;  in bio_list_merge_head()
651 	bl->head = bl2->head;  in bio_list_merge_head()
654 static inline struct bio *bio_list_peek(struct bio_list *bl)  in bio_list_peek()  argument
656 	return bl->head;  in bio_list_peek()
659 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
661 	struct bio *bio = bl->head;  in bio_list_pop()
664 		bl->head = bl->head->bi_next;  in bio_list_pop()
665 		if (!bl->head)  in bio_list_pop()
666 			bl->tail = NULL;  in bio_list_pop()
674 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
676 	struct bio *bio = bl->head;  in bio_list_get()
678 	bl->head = bl->tail = NULL;  in bio_list_get()