19 static inline int bio_list_empty(const struct bio_list *bl)  in bio_list_empty()  argument
21 	return bl->head == NULL;  in bio_list_empty()
24 static inline void bio_list_init(struct bio_list *bl)  in bio_list_init()  argument
26 	bl->head = bl->tail = NULL;  in bio_list_init()
29 #define bio_list_for_each(bio, bl) \  argument
30 	for (bio = (bl)->head; bio; bio = bio->bi_next)
32 static inline unsigned bio_list_size(const struct bio_list *bl)  in bio_list_size()  argument
37 	bio_list_for_each(bio, bl)  in bio_list_size()
43 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)  in bio_list_add()  argument
47 	if (bl->tail)  in bio_list_add()
48 		bl->tail->bi_next = bio;  in bio_list_add()
50 		bl->head = bio;  in bio_list_add()
52 	bl->tail = bio;  in bio_list_add()
55 static inline void bio_list_merge(struct bio_list *bl, struct bio_list *bl2)  in bio_list_merge()  argument
60 	if (bl->tail)  in bio_list_merge()
61 		bl->tail->bi_next = bl2->head;  in bio_list_merge()
63 		bl->head = bl2->head;  in bio_list_merge()
65 	bl->tail = bl2->tail;  in bio_list_merge()
68 static inline void bio_list_merge_head(struct bio_list *bl,  in bio_list_merge_head()  argument
74 	if (bl->head)  in bio_list_merge_head()
75 		bl2->tail->bi_next = bl->head;  in bio_list_merge_head()
77 		bl->tail = bl2->tail;  in bio_list_merge_head()
79 	bl->head = bl2->head;  in bio_list_merge_head()
82 static inline struct bio *bio_list_pop(struct bio_list *bl)  in bio_list_pop()  argument
84 	struct bio *bio = bl->head;  in bio_list_pop()
87 		bl->head = bl->head->bi_next;  in bio_list_pop()
88 		if (!bl->head)  in bio_list_pop()
89 			bl->tail = NULL;  in bio_list_pop()
97 static inline struct bio *bio_list_get(struct bio_list *bl)  in bio_list_get()  argument
99 	struct bio *bio = bl->head;  in bio_list_get()
101 	bl->head = bl->tail = NULL;  in bio_list_get()