netdev - Re: tun: Use netif_receive_skb instead of netif

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Message-ID: <20100520034207.GA6707@gondor.apana.org.au>
Date:	Thu, 20 May 2010 13:42:07 +1000
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	bmb@...enacr.com, tgraf@...hat.com, nhorman@...driver.com,
	nhorman@...hat.com, eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: tun: Use netif_receive_skb instead of netif_rx

On Thu, May 20, 2010 at 01:34:46PM +1000, Herbert Xu wrote:
>
> cls_cgroup: Store classid in struct sock
> 
> Up until now cls_cgroup has relied on fetching the classid out of
> the current executing thread.  This runs into trouble when a packet
> processing is delayed in which case it may execute out of another
> thread's context.

Oh please add this bit that I forgot about:

This also addresses the case where TCP transmits a queued packet
in response to an inbound ACK.  Currently this isn't classified
at all as we would be in softirq context.

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