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

[Thomas Schatzl]

On Thu, 22 Jan 2026 09:39:52 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   * shade review
>
> Marked as reviewed by shade (Reviewer).

Thanks @shipilev @walulyai for your reviews

-------------

PR Comment: https://git.openjdk.org/jdk/pull/29345#issuecomment-3798575284