543 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
545 	return bl->head == NULL;  in bio_list_empty()
548 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
550 	bl->head = bl->tail = NULL;  in bio_list_init()
555 #define bio_list_for_each(bio, bl) \  argument
556 	for (bio = (bl)->head; bio; bio = bio->bi_next)
558 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
563 	bio_list_for_each(bio, bl)  in bio_list_size()
569 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
573 	if (bl->tail)  in bio_list_add()
574 		bl->tail->bi_next = bio;  in bio_list_add()
576 		bl->head = bio;  in bio_list_add()
578 	bl->tail = bio;  in bio_list_add()
581 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)  in bio_list_add_head()  argument
583 	bio->bi_next = bl->head;  in bio_list_add_head()
585 	bl->head = bio;  in bio_list_add_head()
587 	if (!bl->tail)  in bio_list_add_head()
588 		bl->tail = bio;  in bio_list_add_head()
591 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
596 	if (bl->tail)  in bio_list_merge()
597 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
599 		bl->head = bl2->head;  in bio_list_merge()
601 	bl->tail = bl2->tail;  in bio_list_merge()
604 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
610 	if (bl->head)  in bio_list_merge_head()
611 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
613 		bl->tail = bl2->tail;  in bio_list_merge_head()
615 	bl->head = bl2->head;  in bio_list_merge_head()
618 static inline struct bio *bio_list_peek(struct bio_list *bl)  in bio_list_peek()  argument
620 	return bl->head;  in bio_list_peek()
623 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
625 	struct bio *bio = bl->head;  in bio_list_pop()
628 		bl->head = bl->head->bi_next;  in bio_list_pop()
629 		if (!bl->head)  in bio_list_pop()
630 			bl->tail = NULL;  in bio_list_pop()
638 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
640 	struct bio *bio = bl->head;  in bio_list_get()
642 	bl->head = bl->tail = NULL;  in bio_list_get()