RFR: 8375093: Convert GlobalCounter to use Atomic<T>

[Kim Barrett]

On Fri, 16 Jan 2026 04:34:37 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Please review this change to make GlobalCounter use Atomic instead of
>> AtomicAccess.
>> 
>> Testing: mach5 tier1
>
> This all seems fine. Thanks.

Thanks for reviews @dholmes-ora and @walulyai

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

PR Comment: https://git.openjdk.org/jdk/pull/29256#issuecomment-3769581821