netdev - Re: [PATCH RFC net-next] ip_tunnel: create percpu gro

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Message-ID: <1420851759.5947.83.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Fri, 09 Jan 2015 17:02:39 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Martin Lau <kafai@...com>
Cc:	netdev@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH RFC net-next] ip_tunnel: create percpu gro_cell

On Fri, 2015-01-09 at 15:17 -0800, Martin Lau wrote:
> Is the spin_lock() still needed?

Think about cpu hotplug, we can have interesting things here.

Basically no cost at all once mem is percpu.


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