diff -r 8ec8971f511a -r 227a9e5e4b4a src/share/vm/gc_implementation/g1/heapRegion.hpp
--- a/src/share/vm/gc_implementation/g1/heapRegion.hpp	Thu Sep 04 16:53:27 2014 -0700
+++ b/src/share/vm/gc_implementation/g1/heapRegion.hpp	Fri Sep 05 09:49:19 2014 +0200
@@ -25,6 +25,7 @@
 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_HPP
 #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGION_HPP
 
+#include "gc_implementation/g1/g1AllocationContext.hpp"
 #include "gc_implementation/g1/g1BlockOffsetTable.hpp"
 #include "gc_implementation/g1/g1_specialized_oop_closures.hpp"
 #include "gc_implementation/g1/survRateGroup.hpp"
@@ -236,6 +237,8 @@
   // The index of this region in the heap region sequence.
   uint  _hrm_index;
 
+  AllocationContext_t _allocation_context;
+
   HumongousType _humongous_type;
   // For a humongous region, region in which it starts.
   HeapRegion* _humongous_start_region;
@@ -332,7 +335,8 @@
  public:
   HeapRegion(uint hrm_index,
              G1BlockOffsetSharedArray* sharedOffsetArray,
-             MemRegion mr);
+             MemRegion mr,
+             AllocationContext_t context = AllocationContext::system());
 
   // Initializing the HeapRegion not only resets the data structure, but also
   // resets the BOT for that heap region.
@@ -527,6 +531,14 @@
     _next_in_special_set = r;
   }
 
+  void set_allocation_context(AllocationContext_t context) {
+    _allocation_context = context;
+  }
+
+  AllocationContext_t  allocation_context() const {
+    return _allocation_context;
+  }
+
   // Methods used by the HeapRegionSetBase class and subclasses.
 
   // Getter and setter for the next and prev fields used to link regions into