hg: shenandoah/jdk8u/hotspot: Fix bookkeeping of free-set used/available/capacity. Use counter for 'used' rather than recalculating every time.

[roman at kennke.org]

Changeset: 5834e8a12caf
Author:    rkennke
Date:      2015-10-23 21:57 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/5834e8a12caf

Fix bookkeeping of free-set used/available/capacity. Use counter for 'used' rather than recalculating every time.

! src/share/vm/gc_implementation/shenandoah/shenandoahCollectorPolicy.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegionSet.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegionSet.hpp