--- a/hotspot/src/share/vm/gc_implementation/g1/g1InCSetState.hpp	Mon Mar 09 08:22:34 2015 +0100
+++ b/hotspot/src/share/vm/gc_implementation/g1/g1InCSetState.hpp	Mon Jan 26 10:32:35 2015 +0100
@@ -25,6 +25,7 @@
 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1INCSETSTATE_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1INCSETSTATE_HPP
 
+#include "gc_implementation/g1/heapRegion.hpp"
 #include "gc_implementation/g1/g1BiasedArray.hpp"
 #include "memory/allocation.hpp"
 
@@ -125,8 +126,10 @@
 
   bool is_in_cset_or_humongous(HeapWord* addr) const { return at(addr).is_in_cset_or_humongous(); }
   bool is_in_cset(HeapWord* addr) const { return at(addr).is_in_cset(); }
+  bool is_in_cset(const HeapRegion* hr) const { return get_by_index(hr->hrm_index()).is_in_cset(); }
   InCSetState at(HeapWord* addr) const { return get_by_address(addr); }
   void clear() { G1BiasedMappedArray<InCSetState>::clear(); }
+  void clear(const HeapRegion* hr) { return set_by_index(hr->hrm_index(), InCSetState::NotInCSet); }
 };
 
 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1INCSETSTATE_HPP