git: openjdk/jdk: 8257817: Shenandoah: Don't race with conc-weak-in-progress flag in weak-LRB

[Zhengyu Gu]

Changeset: 395b6bde
Author:    Zhengyu Gu <zgu at openjdk.org>
Date:      2020-12-07 19:19:23 +0000
URL:       https://git.openjdk.java.net/jdk/commit/395b6bde

8257817: Shenandoah: Don't race with conc-weak-in-progress flag in weak-LRB

Reviewed-by: rkennke

! src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp