diff -r 57c829a0c523 -r a8c50cedbce9 hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.hpp
--- a/hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.hpp	Mon Oct 18 15:01:41 2010 -0700
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1BlockOffsetTable.hpp	Sat Oct 16 17:12:19 2010 -0400
@@ -436,6 +436,8 @@
   }
 
   void check_all_cards(size_t left_card, size_t right_card) const;
+
+  virtual void set_for_starts_humongous(HeapWord* new_end);
 };
 
 // A subtype of BlockOffsetArray that takes advantage of the fact
@@ -484,4 +486,6 @@
 
   HeapWord* block_start_unsafe(const void* addr);
   HeapWord* block_start_unsafe_const(const void* addr) const;
+
+  virtual void set_for_starts_humongous(HeapWord* new_end);
 };