netdev - Re: [PATCH net-2.6.26 3/6][SOCK][NETNS]: Add the percpu prot

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Message-Id: <20080331.201914.69779071.davem@davemloft.net>
Date:	Mon, 31 Mar 2008 20:19:14 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	xemul@...nvz.org
Cc:	netdev@...r.kernel.org, devel@...nvz.org
Subject: Re: [PATCH net-2.6.26 3/6][SOCK][NETNS]: Add the percpu prot_inuse
 counter in the struct net.

From: Pavel Emelyanov <xemul@...nvz.org>
Date: Mon, 31 Mar 2008 16:15:47 +0400

> Such an accounting would cost us two more dereferences to get the
> percpu variable from the struct net, so I make sock_prot_inuse_get
> and _add calls work differently depending on CONFIG_NET_NS - without
> it old optimized routines are used.
> 
> The per-cpu counter for init_net is prepared in core_initcall, so
> that even af_inet, that starts as fs_initcall, will already have the
> init_net prepared.
> 
> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>

Applied.
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