RFR: 8377179: Improve and document racy use of start/end in ThreadLocalAllocBuffer [v3]

[Thomas Schatzl]

On Fri, 6 Feb 2026 08:46:35 GMT, Ivan Walulya <iwalulya at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   * left vs. right in "pointer_delta"
>
> Marked as reviewed by iwalulya (Reviewer).

Thanks @walulyai @albertnetymk for your reviews

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PR Comment: https://git.openjdk.org/jdk/pull/29573#issuecomment-3859544741