netdev - Re: [net-next PATCH v4 08/16] net: sched: RCU cls

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Message-ID: <1410398251.7106.45.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 10 Sep 2014 18:17:31 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	John Fastabend <john.fastabend@...il.com>
Cc:	xiyou.wangcong@...il.com, davem@...emloft.net, jhs@...atatu.com,
	netdev@...r.kernel.org, paulmck@...ux.vnet.ibm.com,
	brouer@...hat.com
Subject: Re: [net-next PATCH v4 08/16] net: sched: RCU cls_tcindex

On Wed, 2014-09-10 at 08:50 -0700, John Fastabend wrote:
> Make cls_tcindex RCU safe.
> 
> This patch addds a new RCU routine rcu_dereference_bh_rtnl() to check
> caller either holds the rcu read lock or RTNL. This is needed to
> handle the case where tcindex_lookup() is being called in both cases.
> 
> Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
> ---

Acked-by: Eric Dumazet <edumazet@...gle.com>


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