netdev - Re: [Patch net-next v2] ipv4: get rid of ip_ra

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Message-ID: <869429ca-e88c-7bef-b8c0-61858d408023@stressinduktion.org>
Date:   Fri, 28 Apr 2017 23:15:16 +0200
From:   Hannes Frederic Sowa <hannes@...essinduktion.org>
To:     Cong Wang <xiyou.wangcong@...il.com>, netdev@...r.kernel.org
Subject: Re: [Patch net-next v2] ipv4: get rid of ip_ra_lock

On 28.04.2017 19:04, Cong Wang wrote:
> After commit 1215e51edad1 ("ipv4: fix a deadlock in ip_ra_control")
> we always take RTNL lock for ip_ra_control() which is the only place
> we update the list ip_ra_chain, so the ip_ra_lock is no longer needed.
> 
> As Eric points out, BH does not need to disable either, RCU readers
> don't care.
> 
> Signed-off-by: Cong Wang <xiyou.wangcong@...il.com>

Acked-by: Hannes Frederic Sowa <hannes@...essinduktion.org>