src/share/vm/gc_implementation/g1/heapRegion.cpp

rev 7107 : imported patch 8058298

*** 215,225 ****
      if (locked) {
        hrrs->clear_locked();
      } else {
        hrrs->clear();
      }
-     _claimed = InitialClaimValue;
    }
    zero_marked_bytes();
  
    _offsets.resize(HeapRegion::GrainWords);
    init_top_at_mark_start();
--- 215,224 ----
*** 292,322 ****
  
    assert(capacity() == HeapRegion::GrainBytes, "pre-condition");
    _humongous_start_region = NULL;
  }
  
- bool HeapRegion::claimHeapRegion(jint claimValue) {
-   jint current = _claimed;
-   if (current != claimValue) {
-     jint res = Atomic::cmpxchg(claimValue, &_claimed, current);
-     if (res == current) {
-       return true;
-     }
-   }
-   return false;
- }
- 
  HeapRegion::HeapRegion(uint hrm_index,
                         G1BlockOffsetSharedArray* sharedOffsetArray,
                         MemRegion mr) :
      G1OffsetTableContigSpace(sharedOffsetArray, mr),
      _hrm_index(hrm_index),
      _allocation_context(AllocationContext::system()),
      _humongous_start_region(NULL),
      _in_collection_set(false),
      _next_in_special_set(NULL),
!     _claimed(InitialClaimValue), _evacuation_failed(false),
      _prev_marked_bytes(0), _next_marked_bytes(0), _gc_efficiency(0.0),
      _next_young_region(NULL),
      _next_dirty_cards_region(NULL), _next(NULL), _prev(NULL),
  #ifdef ASSERT
      _containing_set(NULL),
--- 291,310 ----
  
    assert(capacity() == HeapRegion::GrainBytes, "pre-condition");
    _humongous_start_region = NULL;
  }
  
  HeapRegion::HeapRegion(uint hrm_index,
                         G1BlockOffsetSharedArray* sharedOffsetArray,
                         MemRegion mr) :
      G1OffsetTableContigSpace(sharedOffsetArray, mr),
      _hrm_index(hrm_index),
      _allocation_context(AllocationContext::system()),
      _humongous_start_region(NULL),
      _in_collection_set(false),
      _next_in_special_set(NULL),
!     _evacuation_failed(false),
      _prev_marked_bytes(0), _next_marked_bytes(0), _gc_efficiency(0.0),
      _next_young_region(NULL),
      _next_dirty_cards_region(NULL), _next(NULL), _prev(NULL),
  #ifdef ASSERT
      _containing_set(NULL),