linux-kernel - Re: [PATCH] selftests/mm: ksm_tests: skip when not run as root

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Message-ID: <CABFUUZE50X=PXAK0nFC1qhj4GhZ1FQJ2T2Jf8M0APE6s5-mgvA@mail.gmail.com>
Date: Sat, 10 Jan 2026 20:44:21 +0800
From: sun jian <sun.jian.kdev@...il.com>
To: SeongJae Park <sj@...nel.org>
Cc: Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org, linux-mm@...ck.org, 
	Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests/mm: ksm_tests: skip when not run as root

On Sat, Jan 10, 2026 at 9:16 AM SeongJae Park <sj@...nel.org> wrote:
> What about using ksft_exit_skip() instead, like compaction_test.c does?
ksm_tests is a legacy selftest binary and doesn't use kselftest harness/TAP
APIs. It only includes kselftest.h for the KSFT_* exit codes.

This patch is a minimal prerequisite fix. Returning KSFT_SKIP already
provides the correct semantic to the runner, without pulling ksm_tests into the
harness model, which would be a larger refactor.

Regards,
Sun Jian