selftests/futex: Migrate futex_wait to harness

Migrate futex_wait test to the kselftest harness framework, removing mixed
legacy ksft_* API usages and ensuring proper thread joining.

[ tglx: Fixup coding style ]

Signed-off-by: Wake Liu <wakel@google.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260525092002.3762888-2-wakel@google.com
This commit is contained in:
Wake Liu 2026-05-25 09:20:00 +00:00 • committed by Thomas Gleixner
commit 0d65d1abb5