RFR: 8375981: G1: Convert G1RemSet helper classes to use Atomic<T> [v2]

[Ivan Walulya]

On Thu, 22 Jan 2026 09:34:51 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review this conversion of `G1RemSet` helper classes to use `Atomic<>`.
>> 
>> There has been one additional non-volatile member that has been converted to use `Atomic<T>`.
>> 
>> Testing: gha, tier1
>> 
>> Thanks,
>>   Thomas
>
> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
> 
>   * shade review

Marked as reviewed by iwalulya (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/29345#pullrequestreview-3697198570