Re: [PATCH] Add per-process flag to control thp
From: Dave Jones
Date: Fri Aug 02 2013 - 15:55:14 EST
On Fri, Aug 02, 2013 at 02:46:59PM -0500, Alex Thorlton wrote:
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index 50d04b9..f084c76 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -1406,6 +1406,9 @@ struct task_struct {
> unsigned int sequential_io;
> unsigned int sequential_io_avg;
> #endif
> +#ifdef CONFIG_TRANSPARENT_HUGEPAGE
> + int thp_disabled;
> +#endif
> };
Instead of blowing a whole int on this bool, we could add it
to the bitfield a few pages up where we have other prctl things like..
unsigned no_new_privs:1;
Dave
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