netdev - Re: [PATCH net-next 4/4] net: Add Open vSwitch kernel components.

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Message-ID: <CAEP_g=8PjK3GWuDVT36UVxWsQsGwf1WGYXZDCdax+3XqX5-T4A@mail.gmail.com>
Date:	Fri, 18 Nov 2011 16:58:49 -0800
From:	Jesse Gross <jesse@...ira.com>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	dev@...nvswitch.org
Subject: Re: [PATCH net-next 4/4] net: Add Open vSwitch kernel components.

On Fri, Nov 18, 2011 at 3:23 PM, Stephen Hemminger
<shemminger@...tta.com> wrote:
> On Fri, 18 Nov 2011 15:12:18 -0800
> Jesse Gross <jesse@...ira.com> wrote:
>
>> +             write_seqcount_begin(&stats->seqlock);
>> +             stats->tx_packets++;
>> +             stats->tx_bytes += sent;
>> +             write_seqcount_end(&stats->seqlock);
>
> There is a u64_stats_sync set of macros for this. It has the
> advantage of becoming a NOP on 64 bit platforms.

The reason why I did it this way is it ties the packet and byte count together.
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