netdev - Re: [patch net-next 4/6] net_sched: cls_flow: remove faulty use of list_for_each_entry

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Message-ID: <547F09D9.5050309@mojatatu.com>
Date:	Wed, 03 Dec 2014 08:02:17 -0500
From:	Jamal Hadi Salim <jhs@...atatu.com>
To:	Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org
CC:	davem@...emloft.net
Subject: Re: [patch net-next 4/6] net_sched: cls_flow: remove faulty use of
 list_for_each_entry_rcu

On 12/02/14 12:00, Jiri Pirko wrote:
> rcu variant is not correct here. The code is called by updater (rtnl
> lock is held), not by reader (no rcu_read_lock is held).
>
> Signed-off-by: Jiri Pirko <jiri@...nulli.us>

Same comment as other one..
I actually i am not so sure about the get_ either.
The core may end up invoking that first before doing a del
so for consistency we need rcu version.

cheers,
jamal

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