netdev - Re: tun: Use netif_receive_skb instead of netif

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Date:	Fri, 21 May 2010 11:02:11 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Neil Horman <nhorman@...driver.com>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	David Miller <davem@...emloft.net>, bmb@...enacr.com,
	tgraf@...hat.com, nhorman@...hat.com, netdev@...r.kernel.org
Subject: Re: tun: Use netif_receive_skb instead of netif_rx

On Thu, May 20, 2010 at 08:39:39PM -0400, Neil Horman wrote:
>
> > Not very surprising since tun.c doesn't go through the normal
> > socket interface.  I'll send a additional patch for that.
> > 
> I don't think thats it.  I think its a chicken and egg situation.  I think the
> problem is that tasks can't be assigned to cgroups until their created, and in
> that time a sock can be created.  Its a natural race.  If you create a socket
> before you assign it to a cgroup, that socket retains a classid of zero.  I'm
> going to try modify the patch to update sockets owned by tasks when the cgroup
> is assigned.

That's what I meant above.  My patch will make tun.c to the
classid update every time it sends out a packet.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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