560 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
562 	return bl->head == NULL;  in bio_list_empty()
565 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
567 	bl->head = bl->tail = NULL;  in bio_list_init()
572 #define bio_list_for_each(bio, bl) \  argument
573 	for (bio = (bl)->head; bio; bio = bio->bi_next)
575 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
580 	bio_list_for_each(bio, bl)  in bio_list_size()
586 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
590 	if (bl->tail)  in bio_list_add()
591 		bl->tail->bi_next = bio;  in bio_list_add()
593 		bl->head = bio;  in bio_list_add()
595 	bl->tail = bio;  in bio_list_add()
598 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)  in bio_list_add_head()  argument
600 	bio->bi_next = bl->head;  in bio_list_add_head()
602 	bl->head = bio;  in bio_list_add_head()
604 	if (!bl->tail)  in bio_list_add_head()
605 		bl->tail = bio;  in bio_list_add_head()
608 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
613 	if (bl->tail)  in bio_list_merge()
614 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
616 		bl->head = bl2->head;  in bio_list_merge()
618 	bl->tail = bl2->tail;  in bio_list_merge()
621 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
627 	if (bl->head)  in bio_list_merge_head()
628 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
630 		bl->tail = bl2->tail;  in bio_list_merge_head()
632 	bl->head = bl2->head;  in bio_list_merge_head()
635 static inline struct bio *bio_list_peek(struct bio_list *bl)  in bio_list_peek()  argument
637 	return bl->head;  in bio_list_peek()
640 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
642 	struct bio *bio = bl->head;  in bio_list_pop()
645 		bl->head = bl->head->bi_next;  in bio_list_pop()
646 		if (!bl->head)  in bio_list_pop()
647 			bl->tail = NULL;  in bio_list_pop()
655 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
657 	struct bio *bio = bl->head;  in bio_list_get()
659 	bl->head = bl->tail = NULL;  in bio_list_get()