netdev - Re: [PATCH net-next] pkt_sched: namespace aware ifb

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Date:	Sun, 13 Jan 2013 08:35:45 -0800
From:	Eric Dumazet <erdnetdev@...il.com>
To:	Benjamin LaHaise <bcrl@...ck.org>
Cc:	David Miller <davem@...emloft.net>, socketcan@...tkopp.net,
	netdev@...r.kernel.org
Subject: Re: [PATCH net-next] pkt_sched: namespace aware ifb

On Sun, 2013-01-13 at 09:59 -0500, Benjamin LaHaise wrote:

> 
> The locking isn't the issue, but how the network namespace is selected it.  
> I've implemented some virtual router functionality using network namespaces, 
> and prior to having the setns() syscall, the only way to manipulate other 
> network namespaces was via socket passing between threads in different 
> namespaces.  One of the optimizations in using this technique was to open a 
> netlink socket in another namespace, then pass that file descriptor back to 
> the main daemon.  The code could then add routes and manipulate other areas 
> of the network stack via that netlink socket.
> 

OK thats evil, I'll pass the net pointer then.

Thanks


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