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Date:	Wed, 10 Jul 2013 13:40:35 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	Nicolas Dichtel <nicolas.dichtel@...nd.com>,
	netdev@...r.kernel.org, yoshfuji@...ux-ipv6.org,
	petrus.lt@...il.com, davem@...emloft.net
Subject: Re: [PATCH RFC] ipv6: fix route selection if kernel is not compiled with CONFIG_IPV6_ROUTER_PREF

On Wed, Jul 10, 2013 at 01:15:04PM +0200, Hannes Frederic Sowa wrote:
> On Wed, Jul 10, 2013 at 09:54:58AM +0200, Nicolas Dichtel wrote:
> > Le 09/07/2013 23:57, Hannes Frederic Sowa a écrit :
> > >Are we sure we decrement all sibling's rt6i_nsiblings? Shouldn't we
> > >start iterating from fn->leaf? But this does not seem to cause it,
> > >because my trace does not report any calls to fib6_del_route.
> > Note sure to follow you, but all siblings are listed in rt6i_siblings, so 
> > it must be enough.
> 
> My hunch was to iterate over fn->leaf->rt_next and compare the metrics like we
> do when adding a new route. Then take that rt6_info->rt6i_siblings list_head
> to iterate over the remaining siblings. But I did not review that part
> carefully, need to check later.

Just checked, it is fine.

I was distracted by the way the initial rt6_sibling list was constructed.

Thanks,

  Hannes

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