git: openjdk/jdk17u-dev: 8321815: Shenandoah: gc state should be synchronized to java threads only once per safepoint

[Paul Hohensee]

Changeset: 5e8883e5
Author:    William Kemper <wkemper at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2024-01-30 16:46:15 +0000
URL:       https://git.openjdk.org/jdk17u-dev/commit/5e8883e533c9f0027f2981e9a59fe27f9211725c

8321815: Shenandoah: gc state should be synchronized to java threads only once per safepoint

Reviewed-by: phh
Backport-of: 808a03927c153581cbece93a4f5a4f8242b61ef5

! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/shenandoah/shenandoahVMOperations.cpp
! src/hotspot/share/gc/shenandoah/shenandoahVMOperations.hpp
! src/hotspot/share/gc/shenandoah/shenandoahVerifier.cpp