--- Net2/vm/vm_statistics.h	2018/04/24 18:03:57	1.1.1.1
+++ Net2/vm/vm_statistics.h	2018/04/24 18:15:15	1.1.1.2
@@ -33,7 +33,8 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)vm_statistics.h	7.2 (Berkeley) 4/21/91
+ *	from: @(#)vm_statistics.h	7.2 (Berkeley) 4/21/91
+ *	vm_statistics.h,v 1.3 1993/05/20 03:59:46 cgd Exp
  *
  *
  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
@@ -62,13 +63,13 @@
  * rights to redistribute these changes.
  */
 
+#ifndef _VM_VM_STATISTICS_H_
+#define _VM_VM_STATISTICS_H_
+
 /*
  *	Virtual memory statistics structure.
  */
 
-#ifndef	_VM_STATISTICS_
-#define	_VM_STATISTICS_
-
 struct vm_statistics {
 	long	pagesize;		/* page size in bytes */
 	long	free_count;		/* # of pages free */
@@ -105,4 +106,5 @@ struct pmap_statistics {
 };
 
 typedef struct pmap_statistics	*pmap_statistics_t;
-#endif	_VM_STATISTICS_
+
+#endif /* !_VM_VM_STATISTICS_H_ */