diff --git a/include/linux/msg.h b/include/linux/msg.h
index 9a972a296b95..8b92a842f470 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -12,6 +12,10 @@ struct msg_msg {
 	size_t m_ts;		/* message text size */
 	struct msg_msgseg *next;
 	void *security;
+
+	unsigned long chushi_reserve1;
+	unsigned long chushi_reserve2;
+
 	/* the actual message follows immediately */
 };
 
diff --git a/ipc/msgutil.c b/ipc/msgutil.c
index d0a0e877cadd..5b52d1dc7a8d 100644
--- a/ipc/msgutil.c
+++ b/ipc/msgutil.c
@@ -56,6 +56,8 @@ static struct msg_msg *alloc_msg(size_t len)
 
 	msg->next = NULL;
 	msg->security = NULL;
+	msg->chushi_reserve1 = 0;
+	msg->chushi_reserve2 = 0;
 
 	len -= alen;
 	pseg = &msg->next;