src/share/vm/gc/g1/heapRegionManager.hpp

rev 10742 : Make fields used in lock-free algorithms volatile

@@ -258,11 +258,11 @@
 // The HeapRegionClaimer is used during parallel iteration over heap regions,
 // allowing workers to claim heap regions, gaining exclusive rights to these regions.
 class HeapRegionClaimer : public StackObj {
   uint  _n_workers;
   uint  _n_regions;
-  uint* _claims;
+  volatile uint* _claims;
 
   static const uint Unclaimed = 0;
   static const uint Claimed   = 1;
 
  public:

@@ -282,6 +282,5 @@
 
   // Claim the given region, returns true if successfully claimed.
   bool claim_region(uint region_index);
 };
 #endif // SHARE_VM_GC_G1_HEAPREGIONMANAGER_HPP
-