Merge branch 'net-speedup-vxlan-geneve-tunnel-dismantle'

Haishuang Yan says:

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net: speedup geneve/vxlan tunnels dismantle

This patch series add batching to vxlan/geneve tunnels so that netns
dismantles are less costly.
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Signed-off-by: David S. Miller <davem@davemloft.net>