netdev - Re: [net-next PATCH v1 2/3] net: sched: cls_cgroup tear down exts and ematch from rcu callback

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Message-ID: <CAHA+R7NszfZUZOmTQD9a47Oaqa3zhOAhOdx05Uu89=_=Nks25A@mail.gmail.com>
Date:	Mon, 6 Oct 2014 10:01:40 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	John Fastabend <john.fastabend@...il.com>
Cc:	Cong Wang <xiyou.wangcong@...il.com>,
	David Miller <davem@...emloft.net>,
	netdev <netdev@...r.kernel.org>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [net-next PATCH v1 2/3] net: sched: cls_cgroup tear down exts and
 ematch from rcu callback

On Sun, Oct 5, 2014 at 9:28 PM, John Fastabend <john.fastabend@...il.com> wrote:
> It is not RCU safe to destroy the action chain while there
> is a possibility of readers accessing it. Move this code
> into the rcu callback using the same rcu callback used in the
> code patch to make a change to head.
>
> Signed-off-by: John Fastabend <john.r.fastabend@...el.com>

Acked-by: Cong Wang <cwang@...pensource.com>
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