--- old/src/os_cpu/linux_zero/vm/os_linux_zero.hpp	2017-05-26 18:30:55.822608575 -0400
+++ new/src/os_cpu/linux_zero/vm/os_linux_zero.hpp	2017-05-26 18:30:55.706602842 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2007, 2008, 2010 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -35,7 +35,7 @@
   static bool register_code_area(char *low, char *high) { return true; }
 
   // Atomically copy 64 bits of data
-  static void atomic_copy64(volatile void *src, volatile void *dst) {
+  static void atomic_copy64(const volatile void *src, volatile void *dst) {
 #if defined(PPC32)
     double tmp;
     asm volatile ("lfd  %0, 0(%1)\n"
@@ -49,7 +49,7 @@
                   : "=r"(tmp)
                   : "a"(src), "a"(dst));
 #else
-    *(jlong *) dst = *(jlong *) src;
+    *(jlong *) dst = *(const jlong *) src;
 #endif
   }