Oleg Nesterov <[email protected]> writes:
> depends on Eric's
>
> kthread-dont-depend-on-work-queues-take-2.patch
>
> worker_thread() inherits ignored SIGCHLD from its parent, kthreadd.
> We can remove unneeded do_sigaction().
Acked-by: "Eric W. Biederman" <[email protected]>
Looks good.
We could delete all of:
> set_user_nice(current, -5);
>
> /* Block and flush all signals */
> sigfillset(&blocked);
> sigprocmask(SIG_BLOCK, &blocked, NULL);
> flush_signals(current);
>
> /*
> * We inherited MPOL_INTERLEAVE from the booting kernel.
> * Set MPOL_DEFAULT to insure node local allocations.
> */
> numa_default_policy();
>
> /* SIG_IGN makes children autoreap: see do_notify_parent(). */
> sa.sa.sa_handler = SIG_IGN;
> sa.sa.sa_flags = 0;
> siginitset(&sa.sa.sa_mask, sigmask(SIGCHLD));
> do_sigaction(SIGCHLD, &sa, (struct k_sigaction *)0);
If we wanted to, as that all comes by default from kthreadd.
Eric
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