git: openjdk/jdk: 8257641: Shenandoah: Query is_at_shenandoah_safepoint() from control thread should return false

[Zhengyu Gu]

Changeset: e29ee5b8
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2020-12-03 18:42:42 +0000
URL:       https://git.openjdk.java.net/jdk/commit/e29ee5b8

8257641: Shenandoah: Query is_at_shenandoah_safepoint() from control thread should return false

Reviewed-by: shade

! src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp
! src/hotspot/share/gc/shenandoah/shenandoahUtils.hpp