From mboxrd@z Thu Jan  1 00:00:00 1970
From: Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH v2 1/3] mm: highmem: export kmap_to_page for modules
Date: Tue, 23 Oct 2012 11:33:52 +0100
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To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Marc Zyngier <Marc.Zyngier@arm.com>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "virtualization@lists.linux-foundation.org" <virtualization@lists.linux-foundation.org>, "ericvh@gmail.com" <ericvh@gmail.com>, "levinsasha928@gmail.com" <levinsasha928@gmail.com>, "akpm@linux-foundation.org" <akpm@linux-foundation.org>
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On Tue, Oct 23, 2012 at 12:55:57AM +0100, Rusty Russell wrote:
> Will Deacon <will.deacon@arm.com> writes:
> 
> > Some virtio device drivers (9p) need to translate high virtual addresses
> > to physical addresses, which are inserted into the virtqueue for
> > processing by userspace.
> >
> > This patch exports the kmap_to_page symbol, so that the affected drivers
> > can be compiled as modules.
> 
> Thanks Will!
> 
> I've applied these, and add cc:stable.  I'll push them to Linus after a
> little time in linux-next.

Cheers Rusty. Andrew's right about this affecting highmem on x86 too (I
guess that's what Sasha saw with the 9p memory issues), so stable makes
sense.

Will