netdev - Re: [PATCH 1/1] net: race condition when removing virtual net

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Message-Id: <20130913.201626.1381750756413200302.davem@davemloft.net>
Date:	Fri, 13 Sep 2013 20:16:26 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	ebiederm@...ssion.com
Cc:	fruggeri@...stanetworks.com, edumazet@...gle.com, jiri@...nulli.us,
	alexander.h.duyck@...el.com, amwang@...hat.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH 1/1] net: race condition when removing virtual
 net_device

From: ebiederm@...ssion.com (Eric W. Biederman)
Date: Thu, 12 Sep 2013 13:06:53 -0700

> David, Eric, do any of you know why we have this netdevice notfier
> rebroadcast?

It's been there as long as I can remember, but I don't remember
exactly why we do that.

If I had to guess, it's to handle something that has to retry later
due to a "spin_trylock()" or similar type of situation.

Probably best to not remove it. :)

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