From 17427e08faae3e63271a9c2d0edb6a22e5fbb54b Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 22 Apr 2013 14:10:39 +0930
Subject: [PATCH] lguest: extract shadow PTE walking / allocating.

We want a separate find_pte() function so we can call it for populating the
switcher PTE entries.

We can also use it in page_writable().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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