RFR: 8256155: Allow multiple large page sizes to be used on Linux [v39]

[Stefan Johansson]

On Thu, 20 May 2021 15:47:33 GMT, Marcus G K Williams <mgkwill at openjdk.org> wrote:

>> Change the meaning of LargePageSizeInBytes to be the maximum large page size the JVM may use (not the only one). A default value of zero will mean to allow the JVM use large page sizes up to the system's default large page size.
>
> Marcus G K Williams has updated the pull request incrementally with one additional commit since the last revision:
> 
>   tstuefe review
>   
>   Signed-off-by: Marcus G K Williams <marcus.williams at intel.com>

I've done the final testing and it looks good. The testing in out CI doesn't show any new failures and my manual runs testing different page sizes also looks good. We have a few tests that needs to be fixed to be run with 1g pages, but that is not new with this patch. So I consider this ready for integration.

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PR: https://git.openjdk.java.net/jdk/pull/1153