hg: shenandoah/jdk10/hotspot: Make heap counters update completely asynchronous

[ashipile at redhat.com]

Changeset: bd0d6f6643a3
Author:    shade
Date:      2017-09-21 19:24 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk10/hotspot/rev/bd0d6f6643a3

Make heap counters update completely asynchronous

! src/share/vm/gc/shenandoah/shenandoahConcurrentThread.cpp
! src/share/vm/gc/shenandoah/shenandoahConcurrentThread.hpp
! src/share/vm/gc/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc/shenandoah/shenandoahMonitoringSupport.cpp
! src/share/vm/memory/metaspaceCounters.cpp
! src/share/vm/memory/metaspaceCounters.hpp