selftests/powerpc: Add a test for PROT_SAO

[Michael Ellerman]

On Mon, 2016-11-07 at 05:25:18 UTC, Michael Ellerman wrote:
> PROT_SAO is a powerpc-specific flag to mmap(), and we rely on arch
> specific logic to allow it to be passed to mmap().
> 
> Add a small test to ensure mmap() accepts PROT_SAO. We don't have a good
> way to test that it actually causes the mapping to be created with the
> right flags, so for now we just touch the mapping so it's faulted in. In
> future we might be able to do something better.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/24af8c5a52a70bbfd275f59836

cheers