src/share/vm/gc/cms/cmsOopClosures.hpp

rev 10742 : Make fields used in lock-free algorithms volatile

@@ -263,23 +263,22 @@
   MemRegion        _span;        // local chunk
   CMSBitMap*       _bit_map;
   OopTaskQueue*    _work_queue;
   CMSMarkStack*    _overflow_stack;
   HeapWord*  const _finger;
-  HeapWord** const _global_finger_addr;
-  ParMarkFromRootsClosure* const
-                   _parent;
+  HeapWord* volatile* const      _global_finger_addr;
+  ParMarkFromRootsClosure* const _parent;
  protected:
   DO_OOP_WORK_DEFN
  public:
   ParPushOrMarkClosure(CMSCollector* cms_collector,
                        MemRegion span,
                        CMSBitMap* bit_map,
                        OopTaskQueue* work_queue,
                        CMSMarkStack* mark_stack,
                        HeapWord* finger,
-                       HeapWord** global_finger_addr,
+                       HeapWord* volatile* global_finger_addr,
                        ParMarkFromRootsClosure* parent);
   virtual void do_oop(oop* p);
   virtual void do_oop(narrowOop* p);
   inline void do_oop_nv(oop* p);
   inline void do_oop_nv(narrowOop* p);