hg: jdk8u/jdk8u-dev/hotspot: 8129626: G1: set_in_progress() and clear_started() needs a barrier on non-TSO platforms

[felix.yang at huawei.com]

Changeset: a435c913c8ce
Author:    brutisso
Date:      2015-06-25 08:15 +0200
URL:       https://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/a435c913c8ce

8129626: G1: set_in_progress() and clear_started() needs a barrier on non-TSO platforms
Summary: Also reviewed by vitalyd at gmail.com
Reviewed-by: pliden, bpittore, bdelsart

! src/share/vm/gc_implementation/g1/concurrentMarkThread.cpp
! src/share/vm/gc_implementation/g1/concurrentMarkThread.hpp
! src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp