RFR: JDK-8266797: Fix for 8266610 breaks the build on macos

[Vyom Tewari]

On Mon, 10 May 2021 06:34:36 GMT, Vyom Tewari <vtewari at openjdk.org> wrote:

> this change will  include  the below headers files to Linux only. 
> #include <linux/fs.h>
> #include <sys/stat.h>

somehow tests not working for me. https://github.com/vyommani/jdk/actions/runs/827989185

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PR: https://git.openjdk.java.net/jdk/pull/3943