Date: Mon, 3 Mar 2008 11:04:24 -0800 (PST)
From: Christoph Lameter <clameter@sgi.com>
To: Nick Piggin <npiggin@suse.de>
cc: Andrea Arcangeli <andrea@qumranet.com>, Jack Steiner <steiner@sgi.com>,
       akpm@linux-foundation.org, Robin Holt <holt@sgi.com>,
       Avi Kivity <avi@qumranet.com>, Izik Eidus <izike@qumranet.com>,
       kvm-devel@lists.sourceforge.net,
       Peter Zijlstra <a.p.zijlstra@chello.nl>, general@lists.openfabrics.org,
       Steve Wise <swise@opengridcomputing.com>,
       Roland Dreier <rdreier@cisco.com>, Kanoj Sarcar <kanojsarcar@yahoo.com>,
       linux-kernel@vger.kernel.org, linux-mm@kvack.org,
       daniel.blueman@quadrics.com
Subject: Re: [PATCH] mmu notifiers #v8
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On Mon, 3 Mar 2008, Nick Piggin wrote:

> Move definition of struct mmu_notifier and struct mmu_notifier_ops under
> CONFIG_MMU_NOTIFIER to ensure they doesn't get dereferenced when they
> don't make sense.

The callbacks take a mmu_notifier parameter. So how does this compile for 
!MMU_NOTIFIER?

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