diff -r 2250ee17e258 -r b158bed62ef5 src/share/vm/gc_implementation/g1/heapRegion.hpp
--- a/src/share/vm/gc_implementation/g1/heapRegion.hpp	Wed Jan 12 13:06:00 2011 -0500
+++ b/src/share/vm/gc_implementation/g1/heapRegion.hpp	Wed Jan 12 16:34:25 2011 -0500
@@ -372,6 +372,15 @@
     Allocated
   };
 
+  inline HeapWord* par_allocate_no_bot_updates(size_t word_size) {
+    assert(is_young(), "we can only skip BOT updates on young regions");
+    return ContiguousSpace::par_allocate(word_size);
+  }
+  inline HeapWord* allocate_no_bot_updates(size_t word_size) {
+    assert(is_young(), "we can only skip BOT updates on young regions");
+    return ContiguousSpace::allocate(word_size);
+  }
+
   // If this region is a member of a HeapRegionSeq, the index in that
   // sequence, otherwise -1.
   int hrs_index() const { return _hrs_index; }