netdev - Re: [PATCH net-next 0/2] handle

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Message-ID: <CAHA+R7Ou5pv7FoX5BgUQeCKfw4AHD-O+pdqgwk9cOscccxQUGQ@mail.gmail.com>
Date:	Mon, 11 May 2015 15:42:04 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	Alexei Starovoitov <ast@...mgrid.com>
Cc:	David Miller <davem@...emloft.net>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 0/2] handle_ing update

On Mon, May 11, 2015 at 3:23 PM, Alexei Starovoitov <ast@...mgrid.com> wrote:
> On 5/11/15 3:03 PM, Cong Wang wrote:
>>
>> On Mon, May 11, 2015 at 8:09 AM, David Miller <davem@...emloft.net> wrote:
>>>
>>> There is no difference between having ingress qdisc hanging off of
>>> netdevice vs. the classifier list.  They both serve the same purpose
>>> and the change to use the classifier list merely removes one level
>>> of indirection.
>>
>>
>> With adding 8 bytes to each of the netdevice even when it doesn't
>> have ingress qdisc attached at all...
>
>
> we already said several times that the work is already on the way
> to remove 'ingress_queue' from net_device. It will save much more
> memory than addition of 8 bytes.

This sounds like adding 8 bytes is a must step for removing more,
I seriously doubt.
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