From 9a45bd97790ebfdb5ceb137b013c40943b996055 Mon Sep 17 00:00:00 2001
From: Bill Nottingham <notting@redhat.com>
Date: Tue, 1 Apr 2008 13:04:12 -0400
Subject: don't attempt to re-enslave already-enslaved devices (#440077)

---
 sysconfig/network-scripts/ifup-eth | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'sysconfig')

diff --git a/sysconfig/network-scripts/ifup-eth b/sysconfig/network-scripts/ifup-eth
index 3e2c1d47..c5d03576 100755
--- a/sysconfig/network-scripts/ifup-eth
+++ b/sysconfig/network-scripts/ifup-eth
@@ -117,9 +117,10 @@ fi
 
 # slave device?
 if [ "${SLAVE}" = yes -a "${ISALIAS}" = no -a "${MASTER}" != "" ]; then
-    /sbin/ip link set dev ${DEVICE} down
-    echo "+${DEVICE}" > /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null
-
+    grep -wq "${DEVICE}" /sys/class/net/${MASTER}/bonding/slaves || {
+	/sbin/ip link set dev ${DEVICE} down
+	echo "+${DEVICE}" > /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null
+    }
     if [ -n "$ETHTOOL_OPTS" ] ; then
         /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS
     fi
-- 
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