RFR: 8272138: ZGC: Adopt release ordering for self-healing [v3]

[Xiaowei Lu]

On Tue, 10 Aug 2021 14:18:47 GMT, Xiaowei Lu <github.com+39413832+weixlu at openjdk.org> wrote:

>> I updated my comment above, since it had a typo (used `memory_order_release` instead of `memory_order_relaxed`).
>
> OK, it's better to add the fence in one single place.

> I updated my comment above, since it had a typo (used `memory_order_release` instead of `memory_order_relaxed`).

I have replaced it. Thanks for your advice.

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PR: https://git.openjdk.java.net/jdk/pull/5046