536 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
538 	return bl->head == NULL;  in bio_list_empty()
541 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
543 	bl->head = bl->tail = NULL;  in bio_list_init()
548 #define bio_list_for_each(bio, bl) \  argument
549 	for (bio = (bl)->head; bio; bio = bio->bi_next)
551 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
556 	bio_list_for_each(bio, bl)  in bio_list_size()
562 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
566 	if (bl->tail)  in bio_list_add()
567 		bl->tail->bi_next = bio;  in bio_list_add()
569 		bl->head = bio;  in bio_list_add()
571 	bl->tail = bio;  in bio_list_add()
574 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)  in bio_list_add_head()  argument
576 	bio->bi_next = bl->head;  in bio_list_add_head()
578 	bl->head = bio;  in bio_list_add_head()
580 	if (!bl->tail)  in bio_list_add_head()
581 		bl->tail = bio;  in bio_list_add_head()
584 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
589 	if (bl->tail)  in bio_list_merge()
590 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
592 		bl->head = bl2->head;  in bio_list_merge()
594 	bl->tail = bl2->tail;  in bio_list_merge()
597 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
603 	if (bl->head)  in bio_list_merge_head()
604 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
606 		bl->tail = bl2->tail;  in bio_list_merge_head()
608 	bl->head = bl2->head;  in bio_list_merge_head()
611 static inline struct bio *bio_list_peek(struct bio_list *bl)  in bio_list_peek()  argument
613 	return bl->head;  in bio_list_peek()
616 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
618 	struct bio *bio = bl->head;  in bio_list_pop()
621 		bl->head = bl->head->bi_next;  in bio_list_pop()
622 		if (!bl->head)  in bio_list_pop()
623 			bl->tail = NULL;  in bio_list_pop()
631 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
633 	struct bio *bio = bl->head;  in bio_list_get()
635 	bl->head = bl->tail = NULL;  in bio_list_get()