netdev - Re: [PATCH net-next] packet: free packet_rollover after synchronize

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Message-ID: <1434482370.27504.196.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 16 Jun 2015 12:19:30 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Willem de Bruijn <willemb@...gle.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com
Subject: Re: [PATCH net-next] packet: free packet_rollover after
 synchronize_net

On Tue, 2015-06-16 at 12:51 -0400, Willem de Bruijn wrote:
> From: Willem de Bruijn <willemb@...gle.com>
> 
> Destruction of the po->rollover must be delayed until there are no
> more packets in flight that can access it. The field is destroyed in
> packet_release, before synchronize_net. Delay using rcu.
> 
> Fixes: 0648ab70afe6 ("packet: rollover prepare: per-socket state")
> 
> Suggested-by: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Willem de Bruijn <willemb@...gle.com>

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


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