netdev - Re: RCU'ed dst_get

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Message-ID: <alpine.WNT.2.00.1111300514180.808@TSI>
Date:	Wed, 30 Nov 2011 05:16:48 -0700 (Mountain Standard Time)
From:	Marc Aurele La France <tsi@...berta.ca>
To:	Eric Dumazet <eric.dumazet@...il.com>
cc:	Roland Dreier <roland@...nel.org>,
	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-rdma@...r.kernel.org
Subject: Re: RCU'ed dst_get_neighbour()

On Wed, 30 Nov 2011, Eric Dumazet wrote:
> Le mardi 29 novembre 2011 à 22:15 -0700, Marc Aurele La France a écrit :
>> On Tue, 29 Nov 2011, Roland Dreier wrote:
>>> On Tue, Nov 29, 2011 at 5:17 PM, Marc Aurele La France <tsi@...berta.ca> wrote:
>>>> On Tue, 29 Nov 2011, Roland Dreier wrote:
>>>>> On Tue, Nov 29, 2011 at 1:31 PM, Eric Dumazet <eric.dumazet@...il.com>
>>>>> wrote:
>>>>>> Here is the result of this audit, please double check and test it, I
>>>>>> only compiled this.

>>>>> Thanks Eric... I'll queue this up and send it on once we get a good
>>>>> report from Marc.

>>>> I can confirm that Eric's patch, retrofitted to 3.1.3, fixes the problem.

>>> Oh... the problem was already in 3.1?

>> Yes, but not in anything earlier.

> Yes :

> # git describe --contains f2c31e32b378a6653f
> v3.1-rc1~24^2~11

> It all depends if f2c31e32b378a6653f is backported to 3.0 someday, since
> it fixes bug added in commit f39925dbde778 (ipv4: Cache learned redirect
> information in inetpeer)

> # git describe --contains  f39925dbde778
> v2.6.39-rc1~468^2~349

http://www.spinics.net/lists/netdev/msg179639.html should also be 
considered for 3.1 stable as well, for the same reason.

Marc.

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