-#define call_rcu rcu_defer_queue
-#define rcu_reclaim_queue(p) rcu_defer_queue(free, p)
+extern void defer_rcu(void (*fct)(void *p), void *p);
+
+/*
+ * call_rcu will eventually be implemented with an API similar to the Linux
+ * kernel call_rcu(), which will allow its use within RCU read-side C.S.
+ * Generate an error if used for now.
+ */