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Date:      Wed, 15 Sep 2010 09:38:43 +0000 (UTC)
From:      Andre Oppermann <andre@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org
Subject:   svn commit: r212645 - stable/7/sys/netinet
Message-ID:  <201009150938.o8F9chqF028595@svn.freebsd.org>

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Author: andre
Date: Wed Sep 15 09:38:42 2010
New Revision: 212645
URL: http://svn.freebsd.org/changeset/base/212645

Log:
  MFC r211874:
  
    Use timestamp modulo comparison macro for automatic receive buffer
    scaling to correctly handle wrapping of ticks value.

Modified:
  stable/7/sys/netinet/tcp_input.c
Directory Properties:
  stable/7/sys/   (props changed)
  stable/7/sys/cddl/contrib/opensolaris/   (props changed)
  stable/7/sys/contrib/dev/acpica/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)

Modified: stable/7/sys/netinet/tcp_input.c
==============================================================================
--- stable/7/sys/netinet/tcp_input.c	Wed Sep 15 09:38:01 2010	(r212644)
+++ stable/7/sys/netinet/tcp_input.c	Wed Sep 15 09:38:42 2010	(r212645)
@@ -1179,7 +1179,7 @@ tcp_do_segment(struct mbuf *m, struct tc
 			if (tcp_do_autorcvbuf &&
 			    to.to_tsecr &&
 			    (so->so_rcv.sb_flags & SB_AUTOSIZE)) {
-				if (to.to_tsecr > tp->rfbuf_ts &&
+				if (TSTMP_GT(to.to_tsecr, tp->rfbuf_ts) &&
 				    to.to_tsecr - tp->rfbuf_ts < hz) {
 					if (tp->rfbuf_cnt >
 					    (so->so_rcv.sb_hiwat / 8 * 7) &&



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