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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