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

rev 11970 : imported patch overflow_list

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2016, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -321,11 +321,11 @@
   PLABStats _plab_stats;
 
   // A list of from-space images of to-be-scanned objects, threaded through
   // klass-pointers (klass information already copied to the forwarded
   // image.)  Manipulated with CAS.
-  oop _overflow_list;
+  HeapWord* volatile _overflow_list;
   NOT_PRODUCT(ssize_t _num_par_pushes;)
 
   // This closure is used by the reference processor to filter out
   // references to live referent.
   DefNewGeneration::IsAliveClosure _is_alive_closure;

@@ -381,11 +381,11 @@
   // in support of testing overflow code
   NOT_PRODUCT(int _overflow_counter;)
   NOT_PRODUCT(bool should_simulate_overflow();)
 
   // Accessor for overflow list
-  oop overflow_list() { return _overflow_list; }
+  oop overflow_list() { return oop(_overflow_list); }
 
   // Push the given (from-space) object on the global overflow list.
   void push_on_overflow_list(oop from_space_obj, ParScanThreadState* par_scan_state);
 
   // If the global overflow list is non-empty, move some tasks from it