#define cds_hlist_entry(ptr, type, member) \
((type *) ((char *) (ptr) - (unsigned long) (&((type *) 0)->member)))
+/* Get first entry from a list. Assumes the hlist is not empty. */
+#define cds_hlist_first_entry(ptr, type, member) \
+ cds_list_entry((ptr)->next, type, member)
+
+static inline
+int cds_hlist_empty(struct cds_hlist_head *head)
+{
+ return !head->next;
+}
+
/* Add new element at the head of the list. */
static inline
void cds_hlist_add_head(struct cds_hlist_node *newp,