linux-kernel - Re: [PATCH, minor] sched: check for SD_SERIALIZE atomically in rebalance

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Message-ID: <20080506123622.GN32591@elte.hu>
Date:	Tue, 6 May 2008 14:36:22 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Dmitry Adamushko <dmitry.adamushko@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH, minor] sched: check for SD_SERIALIZE atomically in
	rebalance_domains()


* Dmitry Adamushko <dmitry.adamushko@...il.com> wrote:

> 
> Nothing really serious here, mainly just a matter of nit-picking :-/
> 
> 
> From: Dmitry Adamushko <dmitry.adamushko@...il.com>
> Subject: sched: check for SD_SERIALIZE atomically in rebalance_domains()
>     
> For CONFIG_SCHED_DEBUG && CONFIG_SYSCT configs, sd->flags can be 
> altered while being manipulated in rebalance_domains(). Let's do an 
> atomic check. We rely here on the atomicity of read/write accesses for 
> aligned words.

applied, thanks Dmitry.

	Ingo
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