linux-kernel - Re: [PATCH v2 25/33] include/linux/resctrl.h: Define fork and exit functions in a new header file

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Message-ID: <alpine.DEB.2.20.1609081807010.5647@nanos>
Date:   Thu, 8 Sep 2016 18:07:50 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Fenghua Yu <fenghua.yu@...el.com>
cc:     "H. Peter Anvin" <h.peter.anvin@...el.com>,
        Ingo Molnar <mingo@...e.hu>, Tony Luck <tony.luck@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Tejun Heo <tj@...nel.org>, Borislav Petkov <bp@...e.de>,
        Stephane Eranian <eranian@...gle.com>,
        Marcelo Tosatti <mtosatti@...hat.com>,
        David Carrillo-Cisneros <davidcc@...gle.com>,
        Shaohua Li <shli@...com>,
        Ravi V Shankar <ravi.v.shankar@...el.com>,
        Vikas Shivappa <vikas.shivappa@...ux.intel.com>,
        Sai Prakhya <sai.praneeth.prakhya@...el.com>,
        linux-kernel <linux-kernel@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH v2 25/33] include/linux/resctrl.h: Define fork and exit
 functions in a new header file

On Thu, 8 Sep 2016, Fenghua Yu wrote:

> From: Fenghua Yu <fenghua.yu@...el.com>
> 
> A new header file is created in include/linux/resctrl.h. It contains

No comment. You should be able to guess what I'm trying not to say.

> defintions of rdtgroup_fork and rdtgroup_exit for x86. The functions
> are empty for other architectures.
> 
> Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
> Reviewed-by: Tony Luck <tony.luck@...el.com>
> ---
>  include/linux/resctrl.h | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
>  create mode 100644 include/linux/resctrl.h
> 
> diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h
> new file mode 100644
> index 0000000..68dabc4
> --- /dev/null
> +++ b/include/linux/resctrl.h
> @@ -0,0 +1,12 @@
> +#ifndef _LINUX_RESCTRL_H
> +#define _LINUX_RESCTRL_H
> +
> +#ifdef CONFIG_INTEL_RDT
> +extern void rdtgroup_fork(struct task_struct *child);
> +extern void rdtgroup_exit(struct task_struct *tsk);
> +#else
> +static inline void rdtgroup_fork(struct task_struct *child) {}
> +static inline void rdtgroup_exit(struct task_struct *tsk) {}
> +#endif /* CONFIG_X86 */
> +
> +#endif /* _LINUX_RESCTRL_H */
> -- 
> 2.5.0
> 
>