netdev - Re: [PATCH v3] tcp: ioctl type SIOCOUTQNSD returns amount of data not sent

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Message-ID: <20110310221205.GF3121@nuttenaction>
Date:	Thu, 10 Mar 2011 23:12:05 +0100
From:	Hagen Paul Pfeifer <hagen@...u.net>
To:	David Miller <davem@...emloft.net>
Cc:	sledz@...search.de, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, alan@...rguk.ukuu.org.uk,
	kuznet@....inr.ac.ru, pekkas@...core.fi, jmorris@...ei.org,
	yoshfuji@...ux-ipv6.org, kaber@...sh.net, m.schuknecht@...search.de
Subject: Re: [PATCH v3] tcp: ioctl type SIOCOUTQNSD returns amount of data
 not sent

* David Miller | 2011-03-09 14:09:51 [-0800]:

>From: Steffen Sledz <sledz@...search.de>
>Date: Sun,  6 Mar 2011 20:59:55 +0100
>
>> From: Mario Schuknecht <m.schuknecht@...search.de>
>> 
>> In contrast to SIOCOUTQ which returns the amount of data sent
>> but not yet acknowledged plus data not yet sent this patch only
>> returns the data not sent.
>> 
>> For various methods of live streaming bitrate control it may
>> be helpful to know how much data are in the tcp outqueue are
>> not sent yet.
>> 
>> Signed-off-by: Mario Schuknecht <m.schuknecht@...search.de>
>> Signed-off-by: Steffen Sledz <sledz@...search.de>
>
>Applied, thanks.

A little bit late - but why not using struct tcp_info for that? The
information is already provided via getsockopt(TCP_INFO).

Hagen
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