netdev - Re: [PATCH net v3] failover: allow name change on IFF

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Message-ID: <20190327181433-mutt-send-email-mst@kernel.org>
Date:   Wed, 27 Mar 2019 18:16:23 -0400
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     si-wei liu <si-wei.liu@...cle.com>
Cc:     Stephen Hemminger <stephen@...workplumber.org>,
        sridhar.samudrala@...el.com, davem@...emloft.net, kubakici@...pl,
        alexander.duyck@...il.com, jiri@...nulli.us,
        netdev@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        liran.alon@...cle.com, boris.ostrovsky@...cle.com,
        vijay.balakrishna@...cle.com
Subject: Re: [PATCH net v3] failover: allow name change on IFF_UP slave
 interfaces

On Wed, Mar 27, 2019 at 01:10:10PM -0700, si-wei liu wrote:
> Another less safer option is that we just notify userspace anyway without
> sending down/up event around, as I don't see *any real application* cares
> about the link state or whatsoever when it attempts to detect rename.

How do you write a race ree handler then? ATM just detecting link up is
sufficient and covers 100% of cases. Seems like a good idea to keep it
that way.

-- 
MST