netdev - Re: [PATCH 1/2] dst: take into account policy update on check()

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Date:	Mon, 10 Sep 2012 14:47:54 +0200
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	David Miller <davem@...emloft.net>
CC:	eric.dumazet@...il.com, vyasevich@...il.com, sri@...ibm.com,
	linux-sctp@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] dst: take into account policy update on check()

Le 07/09/2012 20:48, David Miller a écrit :
> From: Nicolas Dichtel <nicolas.dichtel@...nd.com>
> Date: Fri, 07 Sep 2012 17:13:35 +0200
>
>> Le 07/09/2012 17:09, Eric Dumazet a écrit :
>>> On Fri, 2012-09-07 at 16:47 +0200, Nicolas Dichtel wrote:
>>>> Le 07/09/2012 16:35, Eric Dumazet a écrit :
>>>>>
>>>>> Hmm... cant we reuse rt_genid ?
>>>>>
>>>>> (When changing flow_cache_genid, change &net->ipv4.rt_genid)
>>>>
>>>> And so adding a new field in net->ipv6?
>>>
>>> or move net->ipv4.rt_genid to net->rt_genid
>>>
>>> Having separate field for IPv4/IPv6 is of little interest IMHO
>>>
>> Ok, I will wait feedback from other people and repost a patch after.
>
> A global net->rt_genid is definitely the way to go.
>
So it means that IPv6 dst entries will be invalidated by IPv4 route management. 
For example, calling rt_cache_flush() will flush IPv6 dst too. Is this acceptable?

I will send a new version.
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