# HG changeset patch
# User dgm36@ise.cl.cam.ac.uk
# Date 1196878124 0
# Node ID df7d0555ec3847bd5915063d8ee79123d6ebc67a
# Parent  ba918cb2cf7520604dee724dd80dad5ce4bee8a1
Changed vm_normal_page to return NULL when presented with a VMA marked
as being VM_FOREIGN.

Signed-off-by: Derek Murray <Derek.Murray@cl.cam.ac.uk>

diff -r ba918cb2cf75 -r df7d0555ec38 mm/memory.c
--- a/mm/memory.c	Tue Dec 04 11:54:22 2007 +0000
+++ b/mm/memory.c	Wed Dec 05 18:08:44 2007 +0000
@@ -395,6 +395,9 @@ struct page *vm_normal_page(struct vm_ar
 		if (!is_cow_mapping(vma->vm_flags))
 			return NULL;
 	}
+
+	if (unlikely(vma->vm_flags & VM_FOREIGN))
+		return NULL;
 
 	/*
 	 * Add some anal sanity checks for now. Eventually,