netdev - Re: [PATCH net-next 3/5] netxen: make 64 bit stats safe on 32 bit platform

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Message-ID: <1308606657.2658.35.camel@edumazet-laptop>
Date:	Mon, 20 Jun 2011 23:50:57 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	davem@...emloft.net, Amit Kumar Salecha <amit.salecha@...gic.com>,
	netdev@...r.kernel.org
Subject: Re: [PATCH net-next 3/5] netxen: make 64 bit stats safe on 32 bit
 platform

Le lundi 20 juin 2011 à 13:35 -0700, Stephen Hemminger a écrit :
> pièce jointe document texte brut (netxen-stats-sync.patch)
> Use stats_update wrapper to avoid problems where 64 bit statistic update
> is not atomic on 32 bit platform.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
> 

Same remark than ifb : You need to be careful not having two different
cpus doing an u64_stats_update_begin(one_syncp);

(Separate rx & tx)


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