--- Net2/vm/device_pager.h	2018/04/24 18:03:57	1.1.1.1
+++ Net2/vm/device_pager.h	2018/04/24 18:14:55	1.1.1.2
@@ -35,11 +35,12 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)device_pager.h	7.1 (Berkeley) 12/5/90
+ *	from: @(#)device_pager.h	7.1 (Berkeley) 12/5/90
+ *	device_pager.h,v 1.3 1993/05/20 03:59:09 cgd Exp
  */
 
-#ifndef	_DEVICE_PAGER_
-#define	_DEVICE_PAGER_	1
+#ifndef _VM_DEVICE_PAGER_H_
+#define _VM_DEVICE_PAGER_H_
 
 /*
  * Device pager private data.
@@ -75,4 +76,4 @@ struct pagerops devicepagerops = {
 
 #endif
 
-#endif	/* _DEVICE_PAGER_ */
+#endif /* !_VM_DEVICE_PAGER_H_ */