hg: jdk8u/jdk8u-dev/hotspot: 2 new changesets

[shade at redhat.com]

Changeset: bc32046eef89
Author:    kbarrett
Date:      2021-01-22 11:20 +0000
URL:       https://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/bc32046eef89

8259271: gc/parallel/TestDynShrinkHeap.java still fails "assert(covered_region.contains(new_memregion)) failed: new region is not in covered_region"
Summary: Use load_acquire to order reads of top and end.
Reviewed-by: tschatzl, iwalulya, eosterlund

! src/share/vm/gc_implementation/shared/mutableSpace.cpp

Changeset: a4312636c0f7
Author:    kbarrett
Date:      2021-02-02 19:20 +0000
URL:       https://hg.openjdk.java.net/jdk8u/jdk8u-dev/hotspot/rev/a4312636c0f7

8260704: ParallelGC: oldgen expansion needs release-store for _end
Summary: Move JDK-8257999 barrier to correct location.
Reviewed-by: tschatzl, sjohanss

! src/share/vm/gc_implementation/parallelScavenge/psOldGen.cpp
! src/share/vm/gc_implementation/shared/mutableSpace.cpp