netdev - Re: getsockopt(TCP_DEFER

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Message-ID: <4B436F6F.3090901@free.fr>
Date:	Tue, 05 Jan 2010 17:57:19 +0100
From:	Daniel Lezcano <daniel.lezcano@...e.fr>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>,
	Julian Anastasov <ja@....bg>,
	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: getsockopt(TCP_DEFER_ACCEPT) value change

Eric Dumazet wrote:
> Le 05/01/2010 16:45, Daniel Lezcano a écrit :
>   
>   
>> It's not problem if the set / get values are not same, but I was asking
>> because I am working with a test suite checking if a checkpoint /
>> restart solution is correct.  One of these tests, sets the
>> TCP_DEFER_ACCEPT value to 12, checkpoints / restarts, and reads the
>> value in order to check if it was correctly restored. The value 12 was
>> chosen because it is not rounded, so we were able to safely do the test.
>> But with the 2.6.32, the behaviour changed, so I preferred to report it
>> in case that is something not expected.
>>
>>
>>     
>
> 12 happened to be rounded to 12 with previous kernels,
> but with recent kernels we have another conversion table :
>   

Thanks Eric, I will change the test program.

  -- Daniel
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