From owner-cvs-src-old@FreeBSD.ORG  Fri Nov  6 16:55:26 2009
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 1DE571065692
	for <cvs-src-old@freebsd.org>; Fri,  6 Nov 2009 16:55:26 +0000 (UTC)
	(envelope-from jhb@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 0C0AD8FC24
	for <cvs-src-old@freebsd.org>; Fri,  6 Nov 2009 16:55:26 +0000 (UTC)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id nA6GtPP8044260
	for <cvs-src-old@freebsd.org>; Fri, 6 Nov 2009 16:55:25 GMT
	(envelope-from jhb@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id nA6GtPoh044259
	for cvs-src-old@freebsd.org; Fri, 6 Nov 2009 16:55:25 GMT
	(envelope-from jhb@repoman.freebsd.org)
Message-Id: <200911061655.nA6GtPoh044259@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	jhb@repoman.freebsd.org using -f
From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 6 Nov 2009 16:55:05 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/netinet tcp_output.c
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 06 Nov 2009 16:55:26 -0000

jhb         2009-11-06 16:55:05 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          tcp_output.c 
  Log:
  SVN rev 198990 on 2009-11-06 16:55:05Z by jhb
  
  Several years ago a feature was added to TCP that casued soreceive() to
  send an ACK right away if data was drained from a TCP socket that had
  previously advertised a zero-sized window.  The current code requires the
  receive window to be exactly zero for this to kick in.  If window scaling is
  enabled and the window is smaller than the scale, then the effective window
  that is advertised is zero.  However, in that case the zero-sized window
  handling is not enabled because the window is not exactly zero.  The fix
  changes the code to check the raw window value against zero.
  
  Reviewed by:    bz
  MFC after:      1 week
  
  Revision  Changes    Path
  1.165     +1 -1      src/sys/netinet/tcp_output.c