RFR: 8375966: G1: Convert G1UpdateRegionLivenessAndSelectForRebuildTask to use Atomic<T> [v2]

[Aleksey Shipilev]

On Thu, 22 Jan 2026 13:08:58 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review this change to convert `G1UpdateRegionLivenessAndSelectForRebuildTask` to use `Atomic<T>`.
>> 
>> Testing: gha
>> 
>> Thanks,
>>   Thomas
>
> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
> 
>   * kbarrett review

Marked as reviewed by shade (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/29340#pullrequestreview-3693369480