From 780c2a5431f8e741061aabfa92effffd9c5e1ca7 Mon Sep 17 00:00:00 2001
From: Ben Pfaff <blp@nicira.com>
Date: Tue, 7 Jun 2011 17:08:48 -0700
Subject: [PATCH] ovs-brcompatd: Remove --prune-timeout option.

This option had an effect when it was initially implemented, but later it
made essentially a no-op without properly removing it or updating the
documentation.  This removes it in favor of keeping the default and only
sensible behavior.
---
 vswitchd/ovs-brcompatd.8.in |  7 -------
 vswitchd/ovs-brcompatd.c    | 35 ++---------------------------------
 2 files changed, 2 insertions(+), 40 deletions(-)

diff --git a/vswitchd/ovs-brcompatd.8.in b/vswitchd/ovs-brcompatd.8.in
index 2ce164c3..692ac67c 100644
--- a/vswitchd/ovs-brcompatd.8.in
+++ b/vswitchd/ovs-brcompatd.8.in
@@ -39,13 +39,6 @@ can be listed by passing \fBhelp\fR to \fBovs\-appctl\fR with
 \fIcommand\fR must not redirect \fBovs\-appctl\fR's standard output or
 standard error streams, because \fBovs\-brcompatd\fR expects to read
 both of these streams separately.
-.TP
-\fB\-\-prune\-timeout=\fIsecs\fR
-.
-Sets the maximum time between pruning port entries to \fIsecs\fR seconds.
-Pruning ports is the process of removing port entries from \fIdatabase\fR
-that no longer exist.  If \fIsecs\fR is zero, then entries are never
-pruned.  The default prune timeout is 5 seconds.
 .
 .so lib/daemon.man
 .so lib/vlog.man
diff --git a/vswitchd/ovs-brcompatd.c b/vswitchd/ovs-brcompatd.c
index cea7fda5..52cd93fc 100644
--- a/vswitchd/ovs-brcompatd.c
+++ b/vswitchd/ovs-brcompatd.c
@@ -78,10 +78,6 @@ static void usage(void) NO_RETURN;
 
 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 60);
 
-/* Maximum number of milliseconds to wait before pruning port entries that
- * no longer exist.  If set to zero, ports are never pruned. */
-static int prune_timeout = 5000;
-
 /* Shell command to execute (via popen()) to send a control command to the
  * running ovs-vswitchd process.  The string must contain one instance of %s,
  * which is replaced by the control command. */
@@ -1274,10 +1270,7 @@ main(int argc, char *argv[])
     }
 
 
-    if (prune_timeout) {
-        rtnetlink_link_notifier_register(&link_notifier,
-                                         netdev_changed_cb, NULL);
-    }
+    rtnetlink_link_notifier_register(&link_notifier, netdev_changed_cb, NULL);
 
     daemonize_complete();
 
@@ -1300,21 +1293,6 @@ main(int argc, char *argv[])
         }
         netdev_run();
 
-        /* If 'prune_timeout' is non-zero, we actively prune from the
-         * configuration of port entries that are no longer valid.  We
-         * use two methods:
-         *
-         *   1) The kernel explicitly notifies us of removed ports
-         *      through the RTNL messages.
-         *
-         *   2) We periodically check all ports associated with bridges
-         *      to see if they no longer exist.
-         */
-        if (ovs && prune_timeout) {
-            rtnetlink_link_notifier_run();
-            poll_timer_wait(prune_timeout);
-        }
-
         nl_sock_wait(brc_sock, POLLIN);
         ovsdb_idl_wait(idl);
         unixctl_server_wait(unixctl);
@@ -1323,9 +1301,7 @@ main(int argc, char *argv[])
         poll_block();
     }
 
-    if (prune_timeout) {
-        rtnetlink_link_notifier_unregister(&link_notifier);
-    }
+    rtnetlink_link_notifier_unregister(&link_notifier);
     ovsdb_idl_destroy(idl);
 
     return 0;
@@ -1356,7 +1332,6 @@ static const char *
 parse_options(int argc, char *argv[])
 {
     enum {
-        OPT_PRUNE_TIMEOUT,
         OPT_APPCTL_COMMAND,
         VLOG_OPTION_ENUMS,
         LEAK_CHECKER_OPTION_ENUMS,
@@ -1365,7 +1340,6 @@ parse_options(int argc, char *argv[])
     static struct option long_options[] = {
         {"help",             no_argument, NULL, 'h'},
         {"version",          no_argument, NULL, 'V'},
-        {"prune-timeout",    required_argument, NULL, OPT_PRUNE_TIMEOUT},
         {"appctl-command",   required_argument, NULL, OPT_APPCTL_COMMAND},
         DAEMON_LONG_OPTIONS,
         VLOG_LONG_OPTIONS,
@@ -1392,10 +1366,6 @@ parse_options(int argc, char *argv[])
             OVS_PRINT_VERSION(0, 0);
             exit(EXIT_SUCCESS);
 
-        case OPT_PRUNE_TIMEOUT:
-            prune_timeout = atoi(optarg) * 1000;
-            break;
-
         case OPT_APPCTL_COMMAND:
             appctl_command = optarg;
             break;
@@ -1435,7 +1405,6 @@ usage(void)
            program_name, program_name);
     printf("\nConfiguration options:\n"
            "  --appctl-command=COMMAND  shell command to run ovs-appctl\n"
-           "  --prune-timeout=SECS    wait at most SECS before pruning ports\n"
           );
     daemon_usage();
     vlog_usage();
-- 
2.30.2