linux-kernel - Re: [tip:sched/core] sched: Fix and optimise calculation of the weight-inverse

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Date:	Mon, 16 May 2011 13:16:10 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	stephan.baerwolf@...ilmenau.de, a.p.zijlstra@...llo.nl,
	torvalds@...ux-foundation.org, tglx@...utronix.de
Cc:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:sched/core] sched: Fix and optimise calculation of the
 weight-inverse


* tip-bot for Stephan Baerwolf <stephan.baerwolf@...ilmenau.de> wrote:

> Commit-ID:  db670dac49b5423b39b5e523d28fe32045d71b10
> Gitweb:     http://git.kernel.org/tip/db670dac49b5423b39b5e523d28fe32045d71b10
> Author:     Stephan Baerwolf <stephan.baerwolf@...ilmenau.de>
> AuthorDate: Wed, 11 May 2011 18:03:29 +0200
> Committer:  Ingo Molnar <mingo@...e.hu>
> CommitDate: Mon, 16 May 2011 11:01:18 +0200

Just want to highlight this aspect of Stephan's scheduler fix for the lkml 
discussion:

> [ This could explain some aritmetical issues for small shares but nothing
>   concrete has been reported yet so we are not confident enough to queue
>   this up in sched/urgent and for -stable backport. But if anyone finds
>   this commit and sees it to fix some badness then we can certainly
>   change our mind! ]
> Signed-off-by: Ingo Molnar <mingo@...e.hu>

So this could be a -stable candidate because it's a fix and it's simple, except 
that at the moment we have no reason to believe that this is a regression or a 
serious bug.

Thanks,

	Ingo
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