--- zzzz-none-000/linux-3.10.107/arch/x86/mm/pageattr-test.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/x86/mm/pageattr-test.c	2021-02-04 17:41:59.000000000 +0000
@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/mm.h>
+#include <linux/vmalloc.h>
 
 #include <asm/cacheflush.h>
 #include <asm/pgtable.h>
@@ -36,7 +37,7 @@
 
 static int pte_testbit(pte_t pte)
 {
-	return pte_flags(pte) & _PAGE_UNUSED1;
+	return pte_flags(pte) & _PAGE_SOFTW1;
 }
 
 struct split_state {
@@ -256,5 +257,4 @@
 
 	return 0;
 }
-
-module_init(start_pageattr_test);
+device_initcall(start_pageattr_test);