[jdk17u-dev] RFR: 8278389: SuspendibleThreadSet::_suspend_all should be volatile/atomic

[Aleksey Shipilev]

On Tue, 4 Jan 2022 14:00:26 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Clean backport for GC reliability. Will wait a bit for mainline testing to catch up.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `tier1`
>  - [x] Linux x86_64 fastdebug `tier2`

Got the push approval.

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PR: https://git.openjdk.java.net/jdk17u-dev/pull/54