Eliminate the allocation of a tcp template structure for each

connection.  The information contained in a tcptemp can be
reconstructed from a tcpcb when needed.

Previously, tcp templates required the allocation of one
mbuf per connection.  On large systems, this change should
free up a large number of mbufs.

Reviewed by:	bmilekic, jlemon, ru
MFC after: 2 weeks

1 files changed, 0 insertions, 6 deletions

diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c
index 3554dae..225e682 100644
--- a/sys/netinet/tcp_input.c
+++ b/sys/netinet/tcp_input.c
@@ -1127,12 +1127,6 @@ findpcb:
 		}
 		FREE(sin, M_SONAME);
 	      }
-		tp->t_template = tcp_template(tp);
-		if (tp->t_template == 0) {
-			tp = tcp_drop(tp, ENOBUFS);
-			dropsocket = 0;		/* socket is already gone */
-			goto drop;
-		}
 		if ((taop = tcp_gettaocache(inp)) == NULL) {
 			taop = &tao_noncached;
 			bzero(taop, sizeof(*taop));