#define rcu_access_pointer(p) READ_ONCE(p)
#define kfree_rcu(ptr, rcu_head) kfree(ptr) /* XXX */
+#define kfree_rcu_mightsleep(ptr) kfree(ptr) /* XXX */
#define kvfree_rcu_mightsleep(ptr) kfree(ptr) /* XXX */
#define RCU_INIT_POINTER(p, v) WRITE_ONCE(p, v)