From bb35a198d1ce076a4957cee75c7f4351baab56a1 Mon Sep 17 00:00:00 2001
From: Keith Bostic <bostic@ucbvax.Berkeley.EDU>
Date: Fri, 3 May 1991 00:40:34 -0800
Subject: [PATCH] add comments describing the fields

SCCS-vsn: sys/sys/msgbuf.h 7.5
---
 usr/src/sys/sys/msgbuf.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/usr/src/sys/sys/msgbuf.h b/usr/src/sys/sys/msgbuf.h
index 2ac826a43f..abb9368dea 100644
--- a/usr/src/sys/sys/msgbuf.h
+++ b/usr/src/sys/sys/msgbuf.h
@@ -4,16 +4,16 @@
  *
  * %sccs.include.redist.c%
  *
- *	@(#)msgbuf.h	7.4 (Berkeley) %G%
+ *	@(#)msgbuf.h	7.5 (Berkeley) %G%
  */
 
-#define	MSG_MAGIC	0x063061
 #define	MSG_BSIZE	(4096 - 3 * sizeof(long))
 struct	msgbuf {
+#define	MSG_MAGIC	0x063061
 	long	msg_magic;
-	long	msg_bufx;
-	long	msg_bufr;
-	char	msg_bufc[MSG_BSIZE];
+	long	msg_bufx;		/* write pointer */
+	long	msg_bufr;		/* read pointer */
+	char	msg_bufc[MSG_BSIZE];	/* buffer */
 };
 #ifdef KERNEL
 struct	msgbuf *msgbufp;
-- 
2.20.1