Re: [PATCH] SMP support for drain local pages.

From: Dave Jones
Date: Wed May 26 2004 - 17:34:58 EST


On Wed, May 26, 2004 at 08:39:51PM +1000, Nigel Cunningham wrote:

> +#ifdef CONFIG_SMP
> +static void __smp_drain_local_pages(void * data)
> +{
> + drain_local_pages();
> +}
> +
> +void smp_drain_local_pages(void)
> +{
> + smp_call_function(__smp_drain_local_pages, NULL, 0, 1);
> + drain_local_pages();
> +}
> +#else
> +void smp_drain_local_pages(void)
> +{
> + drain_local_pages();
> +}
> +#endif
> #endif /* CONFIG_PM */

if you use on_each_cpu() you can do away with the ifdef.
It also takes care of preemption issues.

Dave

-
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/