src/share/vm/gc/g1/heapRegionSet.inline.hpp

@@ -31,11 +31,11 @@
   check_mt_safety();
   assert_heap_region_set(hr->containing_set() == NULL, "should not already have a containing set");
   assert_heap_region_set(hr->next() == NULL, "should not already be linked");
   assert_heap_region_set(hr->prev() == NULL, "should not already be linked");
 
-  _count.increment(1u, hr->capacity());
+  _length++;
   hr->set_containing_set(this);
   verify_region(hr);
 }
 
 inline void HeapRegionSetBase::remove(HeapRegion* hr) {

@@ -43,12 +43,12 @@
   verify_region(hr);
   assert_heap_region_set(hr->next() == NULL, "should already be unlinked");
   assert_heap_region_set(hr->prev() == NULL, "should already be unlinked");
 
   hr->set_containing_set(NULL);
-  assert_heap_region_set(_count.length() > 0, "pre-condition");
-  _count.decrement(1u, hr->capacity());
+  assert_heap_region_set(_length > 0, "pre-condition");
+  _length--;
 }
 
 inline void FreeRegionList::add_ordered(HeapRegion* hr) {
   assert_free_region_list((length() == 0 && _head == NULL && _tail == NULL && _last == NULL) ||
                           (length() >  0 && _head != NULL && _tail != NULL),