RFR: Reclaimed humongous regions should count towards immediate garbage

[Aleksey Shipilev]

On 08/22/2017 09:19 PM, Zhengyu Gu wrote:
>  338     if (region->is_humongous_start()) {
>  339       assert(region->has_live() == heap->is_marked_complete(oop(region->bottom() +
> BrooksPointer::word_size())),
>  340              "Humongous liveness and marks should agree");
>  341       if (!region->has_live()) {
>  342         heap->reclaim_humongous_region_at(region);
>  343         immediate_regions++;
>  344         immediate_garbage += region->garbage();
>  345       }
>  346     }
> 
> #343: humongous can have more than one regions, should add all of them here?

D'uh! Of course. The minimal change for that seems to be this:
  http://cr.openjdk.java.net/~shade/shenandoah/immediate-humongous/webrev.02/

-Aleksey