Re: + kthread-add-a-missing-memory-barrier-to-kthread_stop.patch added to -mm tree

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To: "Dmitry Adamushko" <dmitry.adamushko@xxxxxxxxx>
Subject: Re: + kthread-add-a-missing-memory-barrier-to-kthread_stop.patch added to -mm tree
From: David Howells <dhowells@xxxxxxxxxx>
Date: Mon, 25 Feb 2008 13:55:50 +0000
Cc: dhowells@xxxxxxxxxx, "Linus Torvalds" <torvalds@xxxxxxxxxxxxxxxxxxxx>, "Oleg Nesterov" <oleg@xxxxxxxxxx>, "Andrew Morton" <akpm@xxxxxxxxxxxxxxxxxxxx>, "Linux Kernel Mailing List" <linux-kernel@xxxxxxxxxxxxxxx>, a.p.zijlstra@xxxxxxxxx, apw@xxxxxxxxxxxx, "Ingo Molnar" <mingo@xxxxxxx>, nickpiggin@xxxxxxxxxxxx, paulmck@xxxxxxxxxxxxxxxxxx, rusty@xxxxxxxxxxxxxxx, "Steven Rostedt" <rostedt@xxxxxxxxxxx>, linux-arch@xxxxxxxxxxxxxxx
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Dmitry Adamushko <dmitry.adamushko@xxxxxxxxx> 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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References:
- Re: + kthread-add-a-missing-memory-barrier-to-kthread_stop.patch added to -mm tree
  - From: Dmitry Adamushko
- Re: + kthread-add-a-missing-memory-barrier-to-kthread_stop.patch added to -mm tree
  - From: Linus Torvalds

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