--- a/hotspot/src/share/vm/memory/defNewGeneration.hpp	Fri Dec 17 11:26:53 2010 -0800
+++ b/hotspot/src/share/vm/memory/defNewGeneration.hpp	Fri Dec 17 23:41:31 2010 -0800
@@ -85,6 +85,7 @@
   // Preserve the mark of "obj", if necessary, in preparation for its mark
   // word being overwritten with a self-forwarding-pointer.
   void   preserve_mark_if_necessary(oop obj, markOop m);
+  void   preserve_mark(oop obj, markOop m);    // work routine used by the above
 
   // Together, these keep <object with a preserved mark, mark value> pairs.
   // They should always contain the same number of elements.