src/share/vm/gc_implementation/g1/g1RegionToSpaceMapper.cpp

rev 7619 : [mq]: clear-in-listener

*** 65,77 ****
      guarantee(alloc_granularity >= os_commit_granularity, "allocation granularity smaller than commit granularity");
      _commit_map.resize(rs.size() * commit_factor / alloc_granularity, /* in_resource_area */ false);
    }
  
    virtual void commit_regions(uintptr_t start_idx, size_t num_regions) {
!     _storage.commit(start_idx * _pages_per_region, num_regions * _pages_per_region);
      _commit_map.set_range(start_idx, start_idx + num_regions);
!     fire_on_commit(start_idx, num_regions, true);
    }
  
    virtual void uncommit_regions(uintptr_t start_idx, size_t num_regions) {
      _storage.uncommit(start_idx * _pages_per_region, num_regions * _pages_per_region);
      _commit_map.clear_range(start_idx, start_idx + num_regions);
--- 65,77 ----
      guarantee(alloc_granularity >= os_commit_granularity, "allocation granularity smaller than commit granularity");
      _commit_map.resize(rs.size() * commit_factor / alloc_granularity, /* in_resource_area */ false);
    }
  
    virtual void commit_regions(uintptr_t start_idx, size_t num_regions) {
!     bool zero_filled = _storage.commit(start_idx * _pages_per_region, num_regions * _pages_per_region);
      _commit_map.set_range(start_idx, start_idx + num_regions);
!     fire_on_commit(start_idx, num_regions, zero_filled);
    }
  
    virtual void uncommit_regions(uintptr_t start_idx, size_t num_regions) {
      _storage.uncommit(start_idx * _pages_per_region, num_regions * _pages_per_region);
      _commit_map.clear_range(start_idx, start_idx + num_regions);
*** 115,126 ****
        assert(!_commit_map.at(i), err_msg("Trying to commit storage at region "INTPTR_FORMAT" that is already committed", i));
        uintptr_t idx = region_idx_to_page_idx(i);
        uint old_refcount = _refcounts.get_by_index(idx);
        bool zero_filled = false;
        if (old_refcount == 0) {
!         _storage.commit(idx, 1);
!         zero_filled = true;
        }
        _refcounts.set_by_index(idx, old_refcount + 1);
        _commit_map.set_bit(i);
        fire_on_commit(i, 1, zero_filled);
      }
--- 115,125 ----
        assert(!_commit_map.at(i), err_msg("Trying to commit storage at region "INTPTR_FORMAT" that is already committed", i));
        uintptr_t idx = region_idx_to_page_idx(i);
        uint old_refcount = _refcounts.get_by_index(idx);
        bool zero_filled = false;
        if (old_refcount == 0) {
!         zero_filled = _storage.commit(idx, 1);
        }
        _refcounts.set_by_index(idx, old_refcount + 1);
        _commit_map.set_bit(i);
        fire_on_commit(i, 1, zero_filled);
      }