netdev - Re: [PATCH] net: remove bogus RCU annotations on socket.wq

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Message-Id: <20180731005124.GH24813@linux.vnet.ibm.com>
Date:   Mon, 30 Jul 2018 17:51:24 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Christoph Hellwig <hch@....de>, Eric Dumazet <edumazet@...gle.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: remove bogus RCU annotations on socket.wq

On Mon, Jul 30, 2018 at 03:23:06PM -0700, Eric Dumazet wrote:
> 
> 
> On 07/30/2018 12:45 AM, Christoph Hellwig wrote:
> > We never use RCU protection for it, just a lot of cargo-cult
> > rcu_deference_protects calls.
> > 
> > Note that we do keep the kfree_rcu call for it, as the references through
> > struct sock are RCU protected and thus might require a grace period before
> > freeing.
> > 
> > Signed-off-by: Christoph Hellwig <hch@....de>
> 
> Reviewed-by: Eric Dumazet <edumazet@...gle.com>

Acked-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>