git: openjdk/jdk17u: master: 8271215: Fix data races in G1PeriodicGCTask

[Paul Hohensee]

Changeset: e85351d1
Author:    Ilarion Nakonechnyy <Ilarion at azul.com>
Committer: Paul Hohensee <phh at openjdk.org>
Date:      2021-10-25 15:24:52 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/e85351d15b1b9ad2ab636c743e32c57ba89a85f0

8271215: Fix data races in G1PeriodicGCTask

Backport-of: f2c359a8826e51a92f6a7c6917f2c3d223c24488

! src/hotspot/share/gc/g1/g1PeriodicGCTask.cpp