RFR: 8375438: G1: Convert G1HeapRegion related classes to use Atomic<T> [v2]

[Aleksey Shipilev]

On Tue, 20 Jan 2026 11:32:13 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review conversion of G1HeapRegion related classes to use Atomic<T>.
>> 
>> Testing: tier1, tier4, tier5
>> 
>> (The PipelineLeaksFD failure in gha is a known issue)
>> 
>> Thanks,
>>   Thomas
>
> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
> 
>   * shade review

Marked as reviewed by shade (Reviewer).

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

PR Review: https://git.openjdk.org/jdk/pull/29301#pullrequestreview-3738736964