netdev - Re: [PATCH][NETNS] Make ifindex generation per-namespace

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Date:	Wed, 10 Oct 2007 12:15:33 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Pavel Emelyanov <xemul@...nvz.org>
Cc:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>, devel@...nvz.org
Subject: Re: [PATCH][NETNS] Make ifindex generation per-namespace

Pavel Emelyanov <xemul@...nvz.org> writes:

>> I know there are several data structures internal to the kernel that
>> are indexed by ifindex, and not struct net_device *.  There is the
>> iflink field in struct net_device.  We need a way to refer to network
>> devices in other namespaces in rtnetlink in an unambiguous way.   I
>> don't see any real problems with a global ifindex assignment until
>> we start migrating applications.
>> 
>> So please hold off on this until the kernel has been audited and
>> we have removed all of the uses of ifindex that assume ifindex is
>> global, that we can find.
>
> Ok.

Thanks.

Eric
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