linux-kernel - Re: + kthread-add-a-missing-memory-barrier-to-kthread

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Message-ID: <7789.1203947750@redhat.com>
Date:	Mon, 25 Feb 2008 13:55:50 +0000
From:	David Howells <dhowells@...hat.com>
To:	"Dmitry Adamushko" <dmitry.adamushko@...il.com>
Cc:	dhowells@...hat.com,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Oleg Nesterov" <oleg@...sign.ru>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	a.p.zijlstra@...llo.nl, apw@...dowen.org,
	"Ingo Molnar" <mingo@...e.hu>, nickpiggin@...oo.com.au,
	paulmck@...ux.vnet.ibm.com, rusty@...tcorp.com.au,
	"Steven Rostedt" <rostedt@...dmis.org>, linux-arch@...r.kernel.org
Subject: Re: + kthread-add-a-missing-memory-barrier-to-kthread_stop.patch added to -mm tree

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

> (3)
> 
> LOCK
> 
> LOAD(a)
> MODIFY(b)
> 
> UNLOCK
> 
> and this last one is a problem. No?

I assume you meant:

	LOCK
	LOAD(b)
	MODIFY(a)
	UNLOCK

David
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