On Wed, 2006-12-27 at 22:25 +0100, Ingo Molnar wrote:
>
> +void pagefault_disable(void)
> +{
> + current->pagefault_disabled++;
> + /*
> + * make sure to have issued the store before a pagefault
> + * can hit.
> + */
> + barrier();
> +}
> +
> +void pagefault_enable(void)
> +{
> + /*
> + * make sure to issue those last loads/stores before enabling
> + * the pagefault handler again.
> + */
> + barrier();
> + current->pagefault_disabled--;
> +}
> +
I'll test it, but clearly I'm not going to get the same scheduling while
atomic using this change.. So may as well just put it in -rt and see if
something crashes ..
Daniel
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