linux-kernel - Re: [PATCH 1/2] sched: fair group: fix overflow(was: fix divide by zero)

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Message-ID: <20080612122218.GA29661@elte.hu>
Date:	Thu, 12 Jun 2008 14:22:18 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Lai Jiangshan <laijs@...fujitsu.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] sched: fair group: fix overflow(was: fix divide by
	zero)


* Peter Zijlstra <peterz@...radead.org> wrote:

> > I think that (1UL << 18) is a good limited value:
> > 1)it's not too large, we can create a lot of group before overflow
> > 2)it's several times the weight value for nice=-19 (not too small)
> 
> Thanks!
> 
> Acked-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>

applied to tip/sched, thanks everyone.

	Ingo
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