Author: bz
Date: Thu Jun 23 11:55:15 2016
New Revision: 302140
URL: https://svnweb.freebsd.org/changeset/base/302140
Log:
In VNET TCP teardown Do not sleep unconditionally but only if we
have any TCP connections left.
Submitted by: zec
Approved by: re (hrs)
MFC after: 13 days
Modified:
head/sys/netinet/tcp_subr.c
Modified: head/sys/netinet/tcp_subr.c
==============================================================================
--- head/sys/netinet/tcp_subr.c Thu Jun 23 09:23:37 2016 (r302139)
+++ head/sys/netinet/tcp_subr.c Thu Jun 23 11:55:15 2016 (r302140)
@@ -739,10 +739,11 @@ tcp_destroy(void *unused __unused)
* Sleep to let all tcpcb timers really disappear and cleanup.
*/
do {
- pause("tcpdes", hz/10);
INP_LIST_RLOCK(&V_tcbinfo);
n = V_tcbinfo.ipi_count;
INP_LIST_RUNLOCK(&V_tcbinfo);
+ if (n != 0)
+ pause("tcpdes", hz / 10);
} while (n != 0);
tcp_hc_destroy();
syncache_destroy();
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