Date: Fri, 11 Feb 2011 15:13:04 +0000 (UTC) From: John Baldwin <jhb@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: r218574 - stable/7/sys/netinet Message-ID: <201102111513.p1BFD4gt064620@svn.freebsd.org>
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Author: jhb Date: Fri Feb 11 15:13:03 2011 New Revision: 218574 URL: http://svn.freebsd.org/changeset/base/218574 Log: MFC 218271: When turning off TCP_NOPUSH, only call tcp_output() to immediately flush any pending data if the connection is established. Modified: stable/7/sys/netinet/tcp_usrreq.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_usrreq.c ============================================================================== --- stable/7/sys/netinet/tcp_usrreq.c Fri Feb 11 15:12:31 2011 (r218573) +++ stable/7/sys/netinet/tcp_usrreq.c Fri Feb 11 15:13:03 2011 (r218574) @@ -1318,9 +1318,10 @@ tcp_ctloutput(struct socket *so, struct INP_WLOCK_RECHECK(inp); if (optval) tp->t_flags |= TF_NOPUSH; - else { + else if (tp->t_flags & TF_NOPUSH) { tp->t_flags &= ~TF_NOPUSH; - error = tcp_output(tp); + if (TCPS_HAVEESTABLISHED(tp->t_state)) + error = tcp_output(tp); } INP_WUNLOCK(inp); break;
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