netdev - Re: [RFC Patch net-next 1/4] net_sched: switch filter list to list

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Date:	Thu, 9 Jan 2014 16:20:09 -0800
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Linux Kernel Network Developers <netdev@...r.kernel.org>,
	John Fastabend <john.fastabend@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Jamal Hadi Salim <jhs@...atatu.com>
Subject: Re: [RFC Patch net-next 1/4] net_sched: switch filter list to list_head

On Thu, Jan 9, 2014 at 4:17 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> On Thu, 2014-01-09 at 10:19 -0800, Cong Wang wrote:
>> So that it could be potentially traversed with RCU.
>
> This never made sense to me.
>
> RCU doesn't need list_head at all.
>
> list_head is convenient (not only for RCU), but not a need.
>

I knew, playing RCU list without using list_head is hard to
get right, at least for me. Maybe I should rephrase it.
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