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Date: Wed, 16 Sep 2009 09:24:56 -0400
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Miroslav Rezanina <mrezanin@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>, xen-devel@lists.xensource.com,
       linux-kernel@vger.kernel.org
Subject: Re: [Xen-devel] Re: [PATCH][v2.6.29][XEN] Return unused memory to
	hypervisor
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. snip ..
>  static void xen_vcpu_setup(int cpu)
>  {
> @@ -1057,6 +1111,8 @@ static __init void xen_post_allocator_init(void)
>  	SetPagePinned(virt_to_page(level3_user_vsyscall));
>  #endif
>  	xen_mark_init_mm_pinned();
> +
> +/*	xen_return_unused_memory(); */

Should this be commented out? Or do you plan to provide another
patch to enable this after extensive testing?