void G1DefaultAllocator::release_gc_alloc_regions(EvacuationInfo& evacuation_info) {
  AllocationContext_t context = AllocationContext::current();
  evacuation_info.set_allocation_regions(survivor_gc_alloc_region(context)->count() +
                                         old_gc_alloc_region(context)->count());
  survivor_gc_alloc_region(context)->release();
  // If we have an old GC alloc region to release, we'll save it in
  // _retained_old_gc_alloc_region. If we don't
  // _retained_old_gc_alloc_region will become NULL. This is what we
  // want either way so no reason to check explicitly for either
  // condition.
  _retained_old_gc_alloc_region = old_gc_alloc_region(context)->release();
  if (_retained_old_gc_alloc_region != NULL) {
    _retained_old_gc_alloc_region->record_retained_region();
  }
}
void G1DefaultAllocator::release_gc_alloc_regions(uint no_of_gc_workers, EvacuationInfo& evacuation_info) {
  AllocationContext_t context = AllocationContext::current();
  evacuation_info.set_allocation_regions(survivor_gc_alloc_region(context)->count() +
                                         old_gc_alloc_region(context)->count());
  survivor_gc_alloc_region(context)->release();
  // If we have an old GC alloc region to release, we'll save it in
  // _retained_old_gc_alloc_region. If we don't
  // _retained_old_gc_alloc_region will become NULL. This is what we
  // want either way so no reason to check explicitly for either
  // condition.
  _retained_old_gc_alloc_region = old_gc_alloc_region(context)->release();

  if (ResizePLAB) {
    _g1h->_survivor_plab_stats.adjust_desired_plab_sz(no_of_gc_workers);
    _g1h->_old_plab_stats.adjust_desired_plab_sz(no_of_gc_workers);
  }
}
void G1DefaultAllocator::release_gc_alloc_regions(EvacuationInfo& evacuation_info) {
  AllocationContext_t context = AllocationContext::current();
  evacuation_info.set_allocation_regions(survivor_gc_alloc_region(context)->count() +
                                         old_gc_alloc_region(context)->count());
  survivor_gc_alloc_region(context)->release();
  // If we have an old GC alloc region to release, we'll save it in
  // _retained_old_gc_alloc_region. If we don't
  // _retained_old_gc_alloc_region will become NULL. This is what we
  // want either way so no reason to check explicitly for either
  // condition.
  _retained_old_gc_alloc_region = old_gc_alloc_region(context)->release();
  if (_retained_old_gc_alloc_region != NULL) {
    _retained_old_gc_alloc_region->record_retained_region();
  }

  if (ResizePLAB) {
    _g1h->alloc_buffer_stats(InCSetState::Young)->adjust_desired_plab_sz();
    _g1h->alloc_buffer_stats(InCSetState::Old)->adjust_desired_plab_sz();
  }
}