From: Stephen Hemminger <stephen.hemminger@vyatta.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH 1/2] tun: reserves space for network in skb
Date: Thu, 9 Jun 2011 07:16:51 -0700 (PDT) [thread overview]
Message-ID: <1809430734.67816.1307629011701.JavaMail.root@tahiti.vyatta.com> (raw)
In-Reply-To: <20110609.000914.359816474597759076.davem@davemloft.net>
> From: Stephen Hemminger <shemminger@vyatta.com>
> Date: Wed, 08 Jun 2011 17:33:07 -0700
>
> > The tun driver allocates skb's to hold data from user and then
> > passes the data into the network stack as received data. Most
> > network devices
> > allocate the receive skb with routines like dev_alloc_skb() that
> > reserves additional space for use by network protocol stack but tun
> > does not.
> >
> > Because of the lack of padding, when the packet is passed through
> > bridge netfilter a new skb has to be allocated.
> >
> > Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
>
> Netconf must be coming up soon, Stephen Hemminger is submitting
> patches again :-)
12 hours on plane + 8 hours in airports tend to get the
trivial patch backlog moving again.
next prev parent reply other threads:[~2011-06-09 14:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20110609003306.651532958@vyatta.com>
2011-06-09 0:33 ` [PATCH 1/2] tun: reserves space for network in skb Stephen Hemminger
2011-06-09 7:09 ` David Miller
2011-06-09 14:16 ` Stephen Hemminger [this message]
2011-06-09 0:33 ` [PATCH 2/2] tun: dont force inline of functions Stephen Hemminger
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