netdev - Re: [patch net-next 0/3] net: introduce per-netns netdevice notifiers and use them in mlxsw

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Date:   Wed, 02 Oct 2019 11:52:19 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     jiri@...nulli.us
Cc:     netdev@...r.kernel.org, idosch@...lanox.com, pabeni@...hat.com,
        edumazet@...gle.com, petrm@...lanox.com, sd@...asysnail.net,
        f.fainelli@...il.com, stephen@...workplumber.org,
        mlxsw@...lanox.com
Subject: Re: [patch net-next 0/3] net: introduce per-netns netdevice
 notifiers and use them in mlxsw

From: Jiri Pirko <jiri@...nulli.us>
Date: Mon, 30 Sep 2019 10:15:08 +0200

> From: Jiri Pirko <jiri@...lanox.com>
> 
> Some drivers, like mlxsw, are not interested in notifications coming in
> for netdevices from other network namespaces. So introduce per-netns
> notifiers and allow to reduce overhead by listening only for
> notifications from the same netns.
> 
> This is also a preparation for upcoming patchset "devlink: allow devlink
> instances to change network namespace". This resolves deadlock during
> reload mlxsw into initial netns made possible by
> 328fbe747ad4 ("net: Close race between {un, }register_netdevice_notifier() and setup_net()/cleanup_net()").

Series applied.