/* dispose of a keyring list after the RCU grace period  */
static void keyring_link_rcu_disposal(struct rcu_head *rcu)
/* dispose of a keyring list after the RCU grace period  */
static void keyring_link_rcu_disposal(struct rcu_head *rcu)
{
	struct keyring_list *klist =
		container_of(rcu, struct keyring_list, rcu);
	kfree(klist);
}