[jdk17u-dev] RFR: 8310233: Fix THP detection on Linux

[Paul Hohensee]

On Fri, 25 Aug 2023 10:55:00 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> *Note: not for October CPU*
> 
> Unclean backport. Needed as a prerequisite to fix [JDK-8312182](https://bugs.openjdk.org/browse/JDK-8312182).
> 
> No factual differences exist; merge failed due to surrounding hunks being different (NULL->nullptr).

Marked as reviewed by phh (Reviewer).

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PR Review: https://git.openjdk.org/jdk17u-dev/pull/1694#pullrequestreview-1596451985