hg: jdk9/hs/hotspot: 8159978: Use an array to store the collection set regions instead of linking through regions

[thomas.schatzl at oracle.com]

Changeset: 3d722900f4a8
Author:    tschatzl
Date:      2016-07-06 11:22 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/3d722900f4a8

8159978: Use an array to store the collection set regions instead of linking through regions
Summary: Fix a potential problem with memory visibility in the sampling thread in the collection set by changing the way we store the collection set.
Reviewed-by: ehelin, jmasa

! src/share/vm/gc/g1/g1CollectedHeap.cpp
! src/share/vm/gc/g1/g1CollectedHeap.hpp
! src/share/vm/gc/g1/g1CollectedHeap.inline.hpp
! src/share/vm/gc/g1/g1CollectionSet.cpp
! src/share/vm/gc/g1/g1CollectionSet.hpp
! src/share/vm/gc/g1/g1DefaultPolicy.cpp
! src/share/vm/gc/g1/g1DefaultPolicy.hpp
! src/share/vm/gc/g1/g1EvacFailure.cpp
! src/share/vm/gc/g1/g1HeapVerifier.cpp
! src/share/vm/gc/g1/g1HeapVerifier.hpp
! src/share/vm/gc/g1/g1RemSet.cpp
! src/share/vm/gc/g1/g1YoungRemSetSamplingThread.cpp
! src/share/vm/gc/g1/heapRegion.cpp
! src/share/vm/gc/g1/heapRegion.hpp
! src/share/vm/gc/g1/heapRegion.inline.hpp