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

rev 8825 : [mq]: rev2

*** 435,444 ****
--- 435,451 ----
    verify_optional();
  
    return removed;
  }
  
+ void HeapRegionManager::shrink_at(uint index) {
+   assert(is_available(index), err_msg("Expected available region at index %u", index));
+   HeapRegion* curr_region  = _regions.get_by_index(index);
+   assert(curr_region->is_free(), err_msg("Expected free region at index %u", index));
+   uncommit_regions(index, 1);
+ }
+ 
  uint HeapRegionManager::find_empty_from_idx_reverse(uint start_idx, uint* res_idx) const {
    guarantee(start_idx < _allocated_heapregions_length, "checking");
    guarantee(res_idx != NULL, "checking");
  
    uint num_regions_found = 0;