--- Net2/vm/lock.h	2018/04/24 18:03:57	1.1
+++ Net2/vm/lock.h	2018/04/24 18:15:04	1.1.1.2
@@ -33,7 +33,8 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)lock.h	7.3 (Berkeley) 4/21/91
+ *	from: @(#)lock.h	7.3 (Berkeley) 4/21/91
+ *	lock.h,v 1.3 1993/05/20 03:59:12 cgd Exp
  *
  *
  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
@@ -62,13 +63,13 @@
  * rights to redistribute these changes.
  */
 
+#ifndef _VM_LOCK_H_
+#define _VM_LOCK_H_
+
 /*
  *	Locking primitives definitions
  */
 
-#ifndef	_LOCK_H_
-#define	_LOCK_H_
-
 #define	NCPUS	1		/* XXX */
 
 /*
@@ -172,4 +173,4 @@ boolean_t	lock_try_read_to_write();
 void		lock_set_recursive();
 void		lock_clear_recursive();
 
-#endif /* !_LOCK_H_ */
+#endif /* !_VM_LOCK_H_ */