From c84618d7ac5cf87c6efaaca00e52f69dcff954e1 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Tue, 4 Feb 2014 12:02:34 +0100
Subject: [PATCH] network/ifup: do not run dhclient twice on the same interface

---
 modules.d/40network/ifup.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules.d/40network/ifup.sh b/modules.d/40network/ifup.sh
index 3a03d05..33ec81d 100755
--- a/modules.d/40network/ifup.sh
+++ b/modules.d/40network/ifup.sh
@@ -91,6 +91,9 @@ do_dhcp() {
     # dhclient-script will mark the netif up and generate the online
     # event for nfsroot
     # XXX add -V vendor class and option parsing per kernel
+
+    [ -e /tmp/dhclient.$netif.pid ] && return 0
+
     if ! iface_has_link $netif; then
         echo "No carrier detected"
         return 1