netdev - Re: [PATCH] make _minimum_ TCP retransmission timeout configurable

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Message-ID: <46D5E191.6070401@cosmosbay.com>
Date:	Wed, 29 Aug 2007 23:13:53 +0200
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Rick Jones <rick.jones2@...com>
CC:	netdev@...r.kernel.org
Subject: Re: [PATCH] make _minimum_ TCP retransmission timeout configurable

Rick Jones a écrit :
> Enable configuration of the minimum TCP Retransmission Timeout via
> a new sysctl "tcp_rto_min" to help those who's networks (eg cellular)
> have quite variable RTTs avoid spurrious RTOs.
> 
> Signed-off-by: Rick Jones <rick.jones2@...com>
> Signed-off-by: Lamont Jones <lamont@...com>
> ---
> 
> diff -r 1559df81a153 include/linux/sysctl.h
> --- a/include/linux/sysctl.h	Mon Aug 13 05:00:33 2007 +0000
> +++ b/include/linux/sysctl.h	Wed Aug 22 10:42:55 2007 -0700
> @@ -441,6 +441,7 @@ enum
>  	NET_TCP_ALLOWED_CONG_CONTROL=123,
>  	NET_TCP_MAX_SSTHRESH=124,
>  	NET_TCP_FRTO_RESPONSE=125,
> +	NET_TCP_RTO_MIN=126,
>  };
>  
>  enum {

I am sure you can use CTL_UNNUMBERED instead of adding yet another sysctl 
value, as advised in include/linux/sysctl.h

**  For new interfaces unless you really need a binary number
**  please use CTL_UNNUMBERED.


Thank you

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