From 4f1e1f86a146bf3754f70561c621ad492c5cd9cd Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Wed, 23 May 2012 18:11:36 +0000
Subject: [PATCH] Add 'cow' keyword to show per-process cow count.

Submitted by:	Andrey Zonov <andrey zonov org>
MFC after:	1 week
---
 bin/ps/keyword.c | 1 +
 bin/ps/ps.1      | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/bin/ps/keyword.c b/bin/ps/keyword.c
index 17ca0d87c512..6c380e8b8f15 100644
--- a/bin/ps/keyword.c
+++ b/bin/ps/keyword.c
@@ -76,6 +76,7 @@ static VAR var[] = {
 	{"comm", "COMMAND", NULL, LJUST, ucomm, 0, CHAR, NULL, 0},
 	{"command", "COMMAND", NULL, COMM|LJUST|USER, command, 0,
 		CHAR, NULL, 0},
+	{"cow", "COW", NULL, 0, kvar, KOFF(ki_cow), UINT, "u", 0},
 	{"cpu", "CPU", NULL, 0, kvar, KOFF(ki_estcpu), UINT, "d", 0},
 	{"cputime", "", "time", 0, NULL, 0, CHAR, NULL, 0},
 	{"egid", "", "gid", 0, NULL, 0, CHAR, NULL, 0},
diff --git a/bin/ps/ps.1 b/bin/ps/ps.1
index 59f29ee4ba61..d1627f640cd4 100644
--- a/bin/ps/ps.1
+++ b/bin/ps/ps.1
@@ -29,7 +29,7 @@
 .\"     @(#)ps.1	8.3 (Berkeley) 4/18/94
 .\" $FreeBSD$
 .\"
-.Dd March 8, 2012
+.Dd May 20, 2012
 .Dt PS 1
 .Os
 .Sh NAME
@@ -496,6 +496,8 @@ login class
 command
 .It Cm command
 command and arguments
+.It Cm cow
+number of copy-on-write faults
 .It Cm cpu
 short-term CPU usage factor (for scheduling)
 .It Cm emul