netdev - Re: Races in net_rx_action vs netpoll?

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Message-ID: <20070716080650.GA2297@ff.dom.local>
Date:	Mon, 16 Jul 2007 10:06:50 +0200
From:	Jarek Poplawski <jarkao2@...pl>
To:	Olaf Kirch <okir@....de>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: Races in net_rx_action vs netpoll?

On Fri, Jul 13, 2007 at 10:55:08AM +0200, Jarek Poplawski wrote:
> On Thu, Jul 12, 2007 at 03:54:32PM +0200, Olaf Kirch wrote:
...
> > One thing I was a little worried about was whether dev->npinfo can
> > go away all of a sudden. It's really just protected by an rcu_readlock...
...
> BTW, I don't think there could be any problem with rcu (if it's
> all about calling dev->poll from poll_napi) because then poll_napi
> should have the same problem.

To do it justice: I've missed your point, but of course you are
right the validity of dev->npinfo should be analyzed with such
a solution too.

Regards,
Jarek P.
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