488 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
490 	return bl->head == NULL;  in bio_list_empty()
493 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
495 	bl->head = bl->tail = NULL;  in bio_list_init()
500 #define bio_list_for_each(bio, bl) \  argument
501 	for (bio = (bl)->head; bio; bio = bio->bi_next)
503 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
508 	bio_list_for_each(bio, bl)  in bio_list_size()
514 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
518 	if (bl->tail)  in bio_list_add()
519 		bl->tail->bi_next = bio;  in bio_list_add()
521 		bl->head = bio;  in bio_list_add()
523 	bl->tail = bio;  in bio_list_add()
526 static inline void bio_list_add_head(struct bio_list *bl, struct bio *bio)  in bio_list_add_head()  argument
528 	bio->bi_next = bl->head;  in bio_list_add_head()
530 	bl->head = bio;  in bio_list_add_head()
532 	if (!bl->tail)  in bio_list_add_head()
533 		bl->tail = bio;  in bio_list_add_head()
536 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
541 	if (bl->tail)  in bio_list_merge()
542 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
544 		bl->head = bl2->head;  in bio_list_merge()
546 	bl->tail = bl2->tail;  in bio_list_merge()
549 static inline void bio_list_merge_init(struct bio_list *bl,  in bio_list_merge_init()  argument
552 	bio_list_merge(bl, bl2);  in bio_list_merge_init()
556 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
562 	if (bl->head)  in bio_list_merge_head()
563 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
565 		bl->tail = bl2->tail;  in bio_list_merge_head()
567 	bl->head = bl2->head;  in bio_list_merge_head()
570 static inline struct bio *bio_list_peek(struct bio_list *bl)  in bio_list_peek()  argument
572 	return bl->head;  in bio_list_peek()
575 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
577 	struct bio *bio = bl->head;  in bio_list_pop()
580 		bl->head = bl->head->bi_next;  in bio_list_pop()
581 		if (!bl->head)  in bio_list_pop()
582 			bl->tail = NULL;  in bio_list_pop()
590 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
592 	struct bio *bio = bl->head;  in bio_list_get()
594 	bl->head = bl->tail = NULL;  in bio_list_get()