+/* Count the number of nodes in the hash table. Call with rcu_read_lock held. */
+void ht_count_nodes(struct rcu_ht *ht,
+ unsigned long *count,
+ unsigned long *removed);
+
+/* Call with rcu_read_lock held. */
+struct rcu_ht_node *ht_lookup(struct rcu_ht *ht, void *key, size_t key_len);