RFR: JDK-8310233: Fix THP detection on Linux [v3]

[Thomas Stuefe]

On Fri, 14 Jul 2023 05:37:56 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Feedback johan
>
> Not an area I am familiar with but scanning through the code this seems reasonable. A few minor comments below.
> 
> Thanks.

@dholmes-ora : I massaged in your feedback.

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PR Comment: https://git.openjdk.org/jdk/pull/14739#issuecomment-1635804412