RFR: 8374945: Avoid fstat in os::open [v2]

[duke]

On Wed, 14 Jan 2026 15:37:15 GMT, Jonas Norlinder <jnorlinder at openjdk.org> wrote:

>> Eliminate unnecessary calls to fstat in os::open akin to JDK-8373647. This optimization reduces system overhead.
>
> Jonas Norlinder has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains three commits:
> 
>  - Fixes
>  - Remove trailing whitespace
>  - [Linux] Avoid fstat in os::open

@JonasNorlinder 
Your change (at version dfc44a6bde0a9aeadb5a60639849d1721b18fc97) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/29152#issuecomment-3756257892