"make namespacecheck" fixes

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index f7823a1..c29ebd0 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -993,7 +993,7 @@
 	.release	= single_release,
 };
 
-int __init debug_pagealloc_proc_init(void)
+static int __init debug_pagealloc_proc_init(void)
 {
 	struct dentry *de;