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Re: [Xen-devel] Re: [patch 12/21] Xen-paravirt: Allocate and free vmallo

To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Andi Kleen <ak@xxxxxx>
Subject: Re: [Xen-devel] Re: [patch 12/21] Xen-paravirt: Allocate and free vmalloc areas
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Fri, 16 Feb 2007 17:10:29 +0000
Cc: Zachary Amsden <zach@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Jan Beulich <JBeulich@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxxxxxx>, Ian Pratt <ian.pratt@xxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Christian Limpach <Christian.Limpach@xxxxxxxxxxxx>
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On 16/2/07 16:46, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote:

> Yes, that would work.  Unfortunately that's i386 arch-specific, whereas
> the rest of this code is generic.  I guess I could just move it all to
> arch/i386/mm.

This whole thing isn't an issue on ia64 (they no-op lock_vm_area) and
powerpc doesn't use any of the Xen driver code at this time.
vmalloc_sync_all is supported by both i386 and x86_64, so we can make the
call conditional on CONFIG_X86 so that ia64 will continue to build. This is
what I've done in xen-unstable.

 -- Keir


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