struct bio *tail;
};
+static inline int bio_list_empty(const struct bio_list *bl)
+{
+ return bl->head == NULL;
+}
+
+#define BIO_LIST_INIT { .head = NULL, .tail = NULL }
+
+#define BIO_LIST(bl) \
+ struct bio_list bl = BIO_LIST_INIT
+
static inline void bio_list_init(struct bio_list *bl)
{
bl->head = bl->tail = NULL;
}
+#define bio_list_for_each(bio, bl) \
+ for (bio = (bl)->head; bio; bio = bio->bi_next)
+
+static inline unsigned bio_list_size(const struct bio_list *bl)
+{
+ unsigned sz = 0;
+ struct bio *bio;
+
+ bio_list_for_each(bio, bl)
+ sz++;
+
+ return sz;
+}
+
static inline void bio_list_add(struct bio_list *bl, struct bio *bio)
{
bio->bi_next = NULL;
bl->tail = bl2->tail;
}
+static inline void bio_list_merge_head(struct bio_list *bl,
+ struct bio_list *bl2)
+{
+ if (!bl2->head)
+ return;
+
+ if (bl->head)
+ bl2->tail->bi_next = bl->head;
+ else
+ bl->tail = bl2->tail;
+
+ bl->head = bl2->head;
+}
+
static inline struct bio *bio_list_pop(struct bio_list *bl)
{
struct bio *bio = bl->head;