Re: [PATCH v2 net-next 0/7] net: speedup netns create/delete time

From: Eric Dumazet <edumazet@google.com>
Date: Tue, 19 Sep 2017 16:27:02 -0700

When rate of netns creation/deletion is high enough,
we observe softlockups in cleanup_net() caused by huge list
of netns and way too many rcu_barrier() calls.

This patch series does some optimizations in kobject,
and add batching to tunnels so that netns dismantles are
less costly.

 ...

Series applied, thanks Eric.