src/hotspot/share/gc/g1/heapRegionManager.cpp

*** 609,616 ****
    return _claims[region_index] == Claimed;
  }
  
  bool HeapRegionClaimer::claim_region(uint region_index) {
    assert(region_index < _n_regions, "Invalid index.");
!   uint old_val = Atomic::cmpxchg(Claimed, &_claims[region_index], Unclaimed);
    return old_val == Unclaimed;
  }
--- 609,616 ----
    return _claims[region_index] == Claimed;
  }
  
  bool HeapRegionClaimer::claim_region(uint region_index) {
    assert(region_index < _n_regions, "Invalid index.");
!   uint old_val = Atomic::cmpxchg(&_claims[region_index], Unclaimed, Claimed);
    return old_val == Unclaimed;
  }