Re: [RFC PATCH V3 3/3] cpuidle: default idle driver for x86

[Peter Zijlstra]

On Tue, 2011-02-08 at 16:22 +0530, Trinabh Gupta wrote:
> +/*
> + * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
> + * pm_idle and update to new pm_idle value. Required while changing pm_idle
> + * handler on SMP systems.
> + *
> + * Caller must have changed pm_idle to the new value before the call. Old
> + * pm_idle value will not be used by any CPU after the return of this function.
> + */
> +void cpu_idle_wait(void)
> +{
> +       smp_mb();
> +       /* kick all the CPUs so that they exit out of pm_idle */
> +       smp_call_function(do_nothing, NULL, 1);
> +} 

pm_idle exists no longer... 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/