Date: Mon, 5 Apr 2010 15:40:23 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: Avi Kivity <avi@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, Dmitry Torokhov <dtor@vmware.com>,
       linux-kernel@vger.kernel.org, pv-drivers@vmware.com,
       Dan Magenheimer <dan.magenheimer@oracle.com>
Subject: Re: [PATCH] VMware Balloon driver
Message-Id: <20100405154023.c7e4f877.akpm@linux-foundation.org>
In-Reply-To: <4BBA6383.7070601@redhat.com>
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	<20100405142419.2c9bea3d.akpm@linux-foundation.org>
	<4BBA5E1C.10706@goop.org>
	<20100405151720.8a6ac5e3.akpm@linux-foundation.org>
	<4BBA6383.7070601@redhat.com>
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On Tue, 06 Apr 2010 01:26:11 +0300
Avi Kivity <avi@redhat.com> wrote:

> On 04/06/2010 01:17 AM, Andrew Morton wrote:
> >> The basic idea of the driver is to allow a guest system to give up
> >> memory it isn't using so it can be reused by other virtual machines (or
> >> the host itself).
> >>      
> > So...  does this differ in any fundamental way from what hibernation
> > does, via shrink_all_memory()?
> >    
> 
> Just the _all_ bit, and the fact that we need to report the freed page 
> numbers to the hypervisor.
> 

So...  why not tweak that, rather than implementing some parallel thing?
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