Author: hiren
Date: Mon Aug 4 19:42:48 2014
New Revision: 269526
URL: http://svnweb.freebsd.org/changeset/base/269526
Log:
Add a comment for easier code understanding.
Modified:
head/sys/netinet/tcp_timewait.c
Modified: head/sys/netinet/tcp_timewait.c
==============================================================================
--- head/sys/netinet/tcp_timewait.c Mon Aug 4 19:02:30 2014
(r269525)
+++ head/sys/netinet/tcp_timewait.c Mon Aug 4 19:42:48 2014
(r269526)
@@ -275,6 +275,11 @@ tcp_twstart(struct tcpcb *tp)
tw = uma_zalloc(V_tcptw_zone, M_NOWAIT);
if (tw == NULL) {
+ /*
+ * Reached limit on total number of TIMEWAIT connections
+ * allowed. Remove a connection from TIMEWAIT queue in LRU
+ * fashion to make room for this connection.
+ */
tw = tcp_tw_2msl_reuse();
if (tw == NULL) {
tp = tcp_close(tp);
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