linux-kernel - Re: [PATCH 4/9] net: openvswitch: use this_cpu

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Message-ID: <509BC026.4040209@gmail.com>
Date:	Thu, 08 Nov 2012 22:22:30 +0800
From:	Shan Wei <shanwei88@...il.com>
To:	Christoph Lameter <cl@...ux.com>
CC:	jesse@...ira.com, dev@...nvswitch.org,
	NetDev <netdev@...r.kernel.org>,
	Kernel-Maillist <linux-kernel@...r.kernel.org>,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH 4/9] net: openvswitch: use this_cpu_ptr per-cpu helper

Christoph Lameter said, at 2012/11/3 1:46:
>>  		u64_stats_update_begin(&stats->sync);
>>  		stats->tx_packets++;
> 
> Use this_cpu_inc(vport->percpu_stats->packets) here?
 
Lots of network drivers use u64_stats_sync infrastructure for statistics
on 32bit or 64bit hosts no matter how many members in per-cpu variable. 

keep them be consistent, so no plan to change them.

Thanks 

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