--- zzzz-none-000/linux-3.10.107/include/linux/rculist.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/linux/rculist.h	2021-11-10 11:53:56.000000000 +0000
@@ -18,6 +18,24 @@
  * be used anywhere you would want to use a list_empty_rcu().
  */
 
+/* +++
+ * AVM: backport from 3.15 */
+/*
+ * INIT_LIST_HEAD_RCU - Initialize a list_head visible to RCU readers
+ * @list: list to be initialized
+ *
+ * You should instead use INIT_LIST_HEAD() for normal initialization and
+ * cleanup tasks, when readers have no access to the list being initialized.
+ * However, if the list being initialized is visible to readers, you
+ * need to keep the compiler from being too mischievous.
+ */
+static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
+{
+        ACCESS_ONCE(list->next) = list;
+        ACCESS_ONCE(list->prev) = list;
+}
+/* +++ */
+
 /*
  * return the ->next pointer of a list_head in an rcu safe
  * way, we must not access it directly