linux-kernel - Re: [PATCH 1/3] sched: Move the priority specific bits into a new header file.

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Date:	Wed, 29 Jan 2014 14:28:13 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Dongsheng Yang <yangds.fnst@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org, peterz@...radead.org,
	raistlin@...ux.it, juri.lelli@...il.com, clark.williams@...il.com,
	mingo@...hat.com, rostedt@...dmis.org
Subject: Re: [PATCH 1/3] sched: Move the priority specific bits into a new header file.

Hi Dongsheng,

On Mon, 27 Jan 2014 17:15:37 -0500, Dongsheng Yang wrote:
> Some bits about priority are defined in linux/sched/rt.h, but
> some of them are not only for rt scheduler, such as MAX_PRIO.
>
> This patch move them all into a new header file, linux/sched/prio.h.
>
> Signed-off-by: Dongsheng Yang <yangds.fnst@...fujitsu.com>
> ---
>  include/linux/sched.h      |  4 ++++
>  include/linux/sched/prio.h | 23 +++++++++++++++++++++++
>  include/linux/sched/rt.h   | 21 +++------------------
>  3 files changed, 30 insertions(+), 18 deletions(-)
>  create mode 100644 include/linux/sched/prio.h
>
> diff --git a/include/linux/sched.h b/include/linux/sched.h
> index 68a0e84..ba1b732 100644
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@ -3,6 +3,10 @@
>  
>  #include <uapi/linux/sched.h>
>  
> +#ifndef _SCHED_PRIO_H
> +#include <linux/sched/prio.h>
> +#endif /* #ifndef _SCHED_PRIO_H */

It seems you don't need to use #ifndef-#endif pair to include a header
file?

Thanks,
Namhyung
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