[PATCH 2/2] kselftest/arm64: Add test for atomic futex uaccess with POE

[Kevin Brodsky]

On 21/05/2026 13:22, Mark Brown wrote:
> On Thu, May 21, 2026 at 10:42:31AM +0100, Kevin Brodsky wrote:
>
>> Add a new test to ensure that atomic futex uaccess succeeds on
>> memory mapped with a non-default POIndex/pkey.
>> +	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
>> +		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
>> +	ASSERT_NE(ptr, MAP_FAILED);
> Doesn't matter while there's only one test but we should probably
> munmap() this when we're done.

Fair enough, I was being lazy :) A pkey_free() is also in order to be
comprehensive, another wrapper to add. I considered using
../../mm/pkey-helpers.h but helpers there aren't implemented inline...
Maybe refactoring for later.

- Kevin