netdev - Re: [net-next PATCH v4 07/16] net: sched: RCU cls

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Message-ID: <1410397925.7106.44.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 10 Sep 2014 18:12:05 -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 07/16] net: sched: RCU cls_route

On Wed, 2014-09-10 at 08:49 -0700, John Fastabend wrote:
> RCUify the route classifier. For now however spinlock's are used to
> protect fastmap cache.
> 
> The issue here is the fastmap may be read by one CPU while the
> cache is being updated by another. An array of pointers could be
> one possible solution.
> 
> Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
> ---

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


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