netdev - Re: [PATCH net-2.6.26 1/2][NETNS]: The net-subsys IDs generator.

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Message-Id: <20080415.003535.219653076.davem@davemloft.net>
Date:	Tue, 15 Apr 2008 00:35:35 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	xemul@...nvz.org
Cc:	netdev@...r.kernel.org, dlezcano@...ibm.com,
	paulmck@...ux.vnet.ibm.com
Subject: Re: [PATCH net-2.6.26 1/2][NETNS]: The net-subsys IDs generator.

From: Pavel Emelyanov <xemul@...nvz.org>
Date: Sat, 12 Apr 2008 13:41:22 +0400

> To make some per-net generic pointers, we need some way to address
> them, i.e. - IDs. This is simple IDA-based IDs generator for pernet
> subsystems.
> 
> Addressing questions about potential checkpoint/restart problems: 
> these IDs are "lite-offsets" within the net structure and are by no 
> means supposed to be exported to the userspace.
> 
> Since it will be used in the nearest future by devices only (tun,
> vlan, tunnels, bridge, etc), I make it resemble the functionality
> of register_pernet_device().
> 
> The new ids is stored in the *id pointer _before_ calling the init
> callback to make this id available in this callback.
> 
> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>

Applied.
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