RFR: 8375983: G1: Convert G1ConcurrentRefineStats to use Atomic<T> [v3]

[Kim Barrett]

On Thu, 22 Jan 2026 14:38:50 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review this change that converts `G1ConcurrentRefineStats` to use `Atomic<T>`.
>> 
>> The only notable thing is that there has been need to expand the assignment in `reset()` since the assignment operator for `Atomic<T>` is not defined, and I did not see it worth adding one.
>> 
>> Testing: gha
>> 
>> Thanks,
>>   Thomas
>
> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
> 
>   * add .inline.hpp file

Looks good.

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Marked as reviewed by kbarrett (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/29347#pullrequestreview-3693921851