diff -r 37bacd9a51ac -r 01f6d01a9004 hotspot/src/share/vm/gc_implementation/g1/concurrentMark.hpp
--- a/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Tue Sep 25 18:28:16 2012 +0200
+++ b/hotspot/src/share/vm/gc_implementation/g1/concurrentMark.hpp	Thu Sep 27 15:44:01 2012 -0700
@@ -806,7 +806,14 @@
     return _MARKING_VERBOSE_ && _verbose_level >= high_verbose;
   }
 
-  // Counting data structure accessors
+  // Liveness counting
+
+  // Utility routine to set an exclusive range of cards on the given
+  // card liveness bitmap
+  inline void set_card_bitmap_range(BitMap* card_bm,
+                                    BitMap::idx_t start_idx,
+                                    BitMap::idx_t end_idx,
+                                    bool is_par);
 
   // Returns the card number of the bottom of the G1 heap.
   // Used in biasing indices into accounting card bitmaps.