linux-kernel - Re: SCHED_IDLE documentation

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Date:	Mon, 3 Mar 2008 11:07:06 +0100
From:	"Michael Kerrisk" <mtk.manpages@...glemail.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Arnd Bergmann" <arnd@...db.de>, "Christoph Hellwig" <hch@....de>,
	cbe-oss-dev@...abs.org, "Jeremy Kerr" <jk@...abs.org>,
	linux-kernel@...r.kernel.org
Subject: Re: SCHED_IDLE documentation

On Mon, Mar 3, 2008 at 10:24 AM, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Michael Kerrisk <mtk.manpages@...glemail.com> wrote:
>
> > On Mon, Mar 3, 2008 at 8:33 AM, Ingo Molnar <mingo@...e.hu> wrote:
> > >
> > > * Arnd Bergmann <arnd@...db.de> wrote:
> > >
> > > > If we don't have any man page, what is the actual definition of
> > > > SCHED_IDLE anyway?
> > >
> > > it's rather simple: "it's a priority level even lower priority than nice
> > > +19".
> >
> > Some other questions whose answers may be worth including in the man page:
> >
> > * When was SCHED_IDLE added?  (Actually, who added it?)
>
> "git-blame include/linux/sched.h" gives you that information, it was
> added by me as part of CFS:
>
>  commit 0e6aca43e08a62a48d6770e9a159dbec167bf4c6
>  Author: Ingo Molnar <mingo@...e.hu>
>  Date:   Mon Jul 9 18:51:57 2007 +0200

Yep -- I found it later -- thanks.

Ingo, could you please CC me when kernel-userland API changes go into
mainline?  Otherwise, they potentially end up undocumented, and
un(der)used.

Thanks,

Michael


-- 
Michael Kerrisk
Maintainer of the Linux man-pages project
http://www.kernel.org/doc/man-pages/
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