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ec26879e6d
Add tests for CLONE_PIDFD_AUTOKILL: - autokill_basic: Verify closing the clone3 pidfd kills the child. - autokill_requires_pidfd: Verify AUTOKILL without CLONE_PIDFD fails. - autokill_requires_autoreap: Verify AUTOKILL without CLONE_AUTOREAP fails. - autokill_rejects_thread: Verify AUTOKILL with CLONE_THREAD fails. - autokill_pidfd_open_no_effect: Verify only the clone3 pidfd triggers autokill, not pidfd_open(). - autokill_requires_cap_sys_admin: Verify AUTOKILL without CLONE_NNP fails with -EPERM for an unprivileged caller. - autokill_without_nnp_with_cap: Verify AUTOKILL without CLONE_NNP succeeds with CAP_SYS_ADMIN. Link: https://patch.msgid.link/20260226-work-pidfs-autoreap-v5-6-d148b984a989@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>