From 2deed499826c709120e3ac85823991cb5f20ffee Mon Sep 17 00:00:00 2001
From: Brian Somers <brian@FreeBSD.org>
Date: Mon, 18 Jun 2001 09:21:59 +0000
Subject: [PATCH] Remove the SI_CHEAPCLONE flag when hanging resources off the
 dev_t

---
 sys/net/if_tun.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c
index 0a0b9ce49495..019499570014 100644
--- a/sys/net/if_tun.c
+++ b/sys/net/if_tun.c
@@ -275,6 +275,8 @@ tunopen(dev_t dev, int flag, int mode, struct proc *p)
 	if (r == NULL)
 		return (EBUSY);
 
+	dev->si_flags &= ~SI_CHEAPCLONE;
+
 	tp = dev->si_drv1;
 	if (!tp) {
 		tuncreate(dev);