linux-kernel - Re: [patch 1/1][RFC]Handle uevent per namespace

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Message-ID: <20081124153138.GA16742@kroah.com>
Date:	Mon, 24 Nov 2008 07:31:38 -0800
From:	Greg KH <greg@...ah.com>
To:	Daniel Lezcano <dlezcano@...ibm.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Netdev List <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>,
	Linux Containers <containers@...ts.osdl.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Benjamin Thery <benjamin.thery@...l.net>
Subject: Re: [patch 1/1][RFC]Handle uevent per namespace

On Mon, Nov 24, 2008 at 11:50:34AM +0100, Daniel Lezcano wrote:
>

> Subject: Handle uevent per namespace
> From: Daniel Lezcano <dlezcano@...ibm.com>
> 
> At present when a network device is destroyed, inside a network
> namespace, and this device has the same name as one network device
> belonging to the initial network namespace (eg. eth0), the udev daemon
> will disable the interface in the initial network namespace.
> 
> IMHO, udev should not receive this event. The uevents should be per
> namespace or at least do not send events when not for the initial
> network namespace.

IMHO, network namespaces are a mess and not something that you should be
doing at all :)

> The following patch is a RFC for making uevent namespace aware. I don't
> know this part of the kernel code, so I am pretty sure t is not the 
> right way to do that :) 

Like Kay said, please don't change the kobject core for this, try just
filtering in the network core the events that you handle there.

good luck,

greg k-h
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