ipvs: prefer NETDEV_DOWN event to free cached dsts
The real server becomes unreachable on down event, no need to wait device unregistration. Should help in releasing dsts early before dst->dev is replaced with lo. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off by: Hans Schillstrom <hans@schillstrom.com> Signed-off-by: Simon Horman <horms@verge.net.au>
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@ -1514,10 +1514,8 @@ __ip_vs_dev_reset(struct ip_vs_dest *dest, struct net_device *dev)
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spin_unlock_bh(&dest->dst_lock);
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}
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/*
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* Netdev event receiver
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* Currently only NETDEV_UNREGISTER is handled, i.e. if we hold a reference to
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* a device that is "unregister" it must be released.
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/* Netdev event receiver
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* Currently only NETDEV_DOWN is handled to release refs to cached dsts
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*/
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static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
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void *ptr)
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@ -1529,7 +1527,7 @@ static int ip_vs_dst_event(struct notifier_block *this, unsigned long event,
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struct ip_vs_dest *dest;
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unsigned int idx;
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if (event != NETDEV_UNREGISTER || !ipvs)
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if (event != NETDEV_DOWN || !ipvs)
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return NOTIFY_DONE;
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IP_VS_DBG(3, "%s() dev=%s\n", __func__, dev->name);
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EnterFunction(2);
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