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From: Andrew Morton <akpm@osdl.org>
To: Christoph Lameter <clameter@engr.sgi.com>
Cc: piggin@cyberone.com.au, linux-kernel@vger.kernel.org,
	lhms-devel@lists.sourceforge.net
Subject: Re: [PATCH] swap migration: Fix lru drain
Date: Wed, 7 Dec 2005 16:58:00 -0800	[thread overview]
Message-ID: <20051207165800.7f6908df.akpm@osdl.org> (raw)
In-Reply-To: <Pine.LNX.4.62.0512071641080.26288@schroedinger.engr.sgi.com>

Christoph Lameter <clameter@engr.sgi.com> wrote:
>
> On Thu, 8 Dec 2005, Nick Piggin wrote:
> 
> > Do we need a lock_cpu_hotplug() around here?
> 
> Well, then we may need that lock for each "for_each_online_cpu" use?
>

I suppose so..

> > Can't this deadlock if 2 CPUs each send work to the other
> 
> Then we would need to fix the workqueue flushing function.

I don't think I can see a deadlock here.

  reply	other threads:[~2005-12-08  0:56 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-07 21:55 Christoph Lameter
2005-12-07 23:27 ` Nick Piggin
2005-12-08  0:43   ` Christoph Lameter
2005-12-08  0:58     ` Andrew Morton [this message]
2005-12-08  0:59     ` Nick Piggin
2005-12-08  0:13 ` Andrew Morton
2005-12-08  0:41   ` Christoph Lameter
2005-12-08  0:57     ` Andrew Morton
2005-12-08  1:14       ` Christoph Lameter
2005-12-08  5:02         ` [Lhms-devel] " KAMEZAWA Hiroyuki
2005-12-08  8:36         ` KAMEZAWA Hiroyuki
2005-12-08  8:43           ` KAMEZAWA Hiroyuki

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