Re: [PATCH 1/9] sched: add schedule_timeout_idle()

Peter Zijlstra
2016-03-22T12:23:57Z

On Tue, Mar 22, 2016 at 12:00:18PM +0100, Michal Hocko wrote:

> extern signed long schedule_timeout_interruptible(signed long timeout);
> extern signed long schedule_timeout_killable(signed long timeout);
> extern signed long schedule_timeout_uninterruptible(signed long timeout);
> +extern signed long schedule_timeout_idle(signed long timeout);

> +/*
> + * Like schedule_timeout_uninterruptible(), except this task will not contribute
> + * to load average.
> + */
> +signed long __sched schedule_timeout_idle(signed long timeout)
> +{
> + __set_current_state(TASK_IDLE);
> + return schedule_timeout(timeout);
> +}
> +EXPORT_SYMBOL(schedule_timeout_idle);

Yes we have 3 such other wrappers, but I've gotta ask: why? They seem
pretty pointless.

Why not kill the lot?