To: "Jaya Kumar" <jayakumar.lkml@gmail.com>
Cc: "Jeremy Fitzhardinge" <jeremy@goop.org>,
       "Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>
Subject: Re: "fb-defio: fix page list with concurrent processes"
References: <4856E38E.1040203@goop.org>
	<45a44e480806161811k423fecf2r2d79609a5c0d057@mail.gmail.com>
From: Markus Armbruster <armbru@redhat.com>
Date: Thu, 03 Jul 2008 17:10:24 -0400
In-Reply-To: <45a44e480806161811k423fecf2r2d79609a5c0d057@mail.gmail.com> (Jaya Kumar's message of "Mon\, 16 Jun 2008 18\:11\:14 -0700")
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"Jaya Kumar" <jayakumar.lkml@gmail.com> writes:

> On Mon, Jun 16, 2008 at 3:05 PM, Jeremy Fitzhardinge <jeremy@goop.org> wrote:
>> Your patch "fb-defio: fix page list with concurrent processes" definitely
>> seems to help with the suspend/resume problem I had with the Xen pvfb
>> device.  Is it queued up anywhere?  It seems to be a real bugfix, and should
>> probably be queued for 2.6.26...
>
> It isn't currently queued. I had intended to improve its performance
> by taking advantage of Andrew's suggestion of using !list_empty on the
> page->lru to avoid walking the page list to find the duplicate page,
> but I ran into trouble since the page starts off being on the lru
> list. I'll try to take a look at doing this next weekend.
>
> Thanks,
> jaya

Jaya, any news?
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