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

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Message-ID: <4D7619A2.4090207@dresearch.de>
Date:	Tue, 08 Mar 2011 12:57:22 +0100
From:	Steffen Sledz <sledz@...search.de>
To:	netdev@...r.kernel.org, Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	linux-kernel@...r.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	"Pekka Savola (ipv6)" <pekkas@...core.fi>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>,
	Mario Schuknecht <m.schuknecht@...search.de>
Subject: Re: [PATCH v3] tcp: ioctl type SIOCOUTQNSD returns amount of data
 not sent

Am 06.03.2011 20:59, schrieb Steffen Sledz:
> 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>
> ---
>  include/linux/sockios.h |    4 +++-
>  net/ipv4/tcp.c          |    9 +++++++++
>  2 files changed, 12 insertions(+), 1 deletions(-)

This is the patch version modified according to the comments from Alan Cox.

Anything else to do?

Steffen

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