netdev - Re: [PATCH] ipv4: percpu nh_rth

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Date:	Tue, 31 Jul 2012 17:29:56 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev <netdev@...r.kernel.org>,
	Alexander Duyck <alexander.h.duyck@...el.com>
Subject: Re: [PATCH] ipv4: percpu nh_rth_output cache

On Tue, 2012-07-31 at 17:22 +0200, Eric Dumazet wrote:
> From: Eric Dumazet <edumazet@...gle.com>
> 

> +		p = per_cpu_ptr(nh->nh_pcpu_rth_output,
> +				raw_smp_processor_id());
> +	}

Note : this can use :

	p = __this_cpu_ptr(nh->nh_pcpu_rth_output);

and same thing in __mkroute_output()

prth = __this_cpu_ptr(FIB_RES_NH(*res).nh_pcpu_rth_output);


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