Index: linux-2.6/mm/rmap.c
===================================================================
--- linux-2.6.orig/mm/rmap.c
+++ linux-2.6/mm/rmap.c
@@ -481,7 +481,7 @@ static int page_mkclean_file(struct addr
 
 	spin_lock(&mapping->i_mmap_lock);
 	vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) {
-		if (vma->vm_flags & VM_SHARED)
+		if (vma->vm_flags & VM_MAYSHARE)
 			ret += page_mkclean_one(page, vma);
 	}
 	spin_unlock(&mapping->i_mmap_lock);