529 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
531 	return bl->head == NULL;  in bio_list_empty()
534 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
536 	bl->head = bl->tail = NULL;  in bio_list_init()
541 #define bio_list_for_each(bio, bl) \  argument
542 	for (bio = (bl)->head; bio; bio = bio->bi_next)
544 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
549 	bio_list_for_each(bio, bl)  in bio_list_size()
555 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
559 	if (bl->tail)  in bio_list_add()
560 		bl->tail->bi_next = bio;  in bio_list_add()
562 		bl->head = bio;  in bio_list_add()
564 	bl->tail = bio;  in bio_list_add()
567 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)  in bio_list_add_head()  argument
569 	bio->bi_next = bl->head;  in bio_list_add_head()
571 	bl->head = bio;  in bio_list_add_head()
573 	if (!bl->tail)  in bio_list_add_head()
574 		bl->tail = bio;  in bio_list_add_head()
577 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
582 	if (bl->tail)  in bio_list_merge()
583 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
585 		bl->head = bl2->head;  in bio_list_merge()
587 	bl->tail = bl2->tail;  in bio_list_merge()
590 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
596 	if (bl->head)  in bio_list_merge_head()
597 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
599 		bl->tail = bl2->tail;  in bio_list_merge_head()
601 	bl->head = bl2->head;  in bio_list_merge_head()
604 static inline struct bio *bio_list_peek(struct bio_list *bl)  in bio_list_peek()  argument
606 	return bl->head;  in bio_list_peek()
609 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
611 	struct bio *bio = bl->head;  in bio_list_pop()
614 		bl->head = bl->head->bi_next;  in bio_list_pop()
615 		if (!bl->head)  in bio_list_pop()
616 			bl->tail = NULL;  in bio_list_pop()
624 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
626 	struct bio *bio = bl->head;  in bio_list_get()
628 	bl->head = bl->tail = NULL;  in bio_list_get()