netdev - Re: [PATCH v2 net-next-2.6] netfilter: ip_tables: dont block BH while reading counters

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Message-ID: <20101216093149.71f082c7@nehalam>
Date:	Thu, 16 Dec 2010 09:31:49 -0800
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Jesper Dangaard Brouer <hawk@...x.dk>,
	Patrick McHardy <kaber@...sh.net>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Steven Rostedt <srostedt@...hat.com>,
	Alexander Duyck <alexander.h.duyck@...el.com>,
	netfilter-devel <netfilter-devel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
Subject: Re: [PATCH v2 net-next-2.6] netfilter: ip_tables: dont block BH
 while reading counters

On Thu, 16 Dec 2010 17:53:56 +0100
Eric Dumazet <eric.dumazet@...il.com> wrote:

>  	spinlock_t lock;
> +	seqcount_t seq;

Since lock and seqcount_t are associated together, why isn't this a seqlock instead?

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