netns: make rt_secret_rebuild timer per namespace
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 6fe799d..f99d9db 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -132,7 +132,6 @@
static void rt_worker_func(struct work_struct *work);
static DECLARE_DELAYED_WORK(expires_work, rt_worker_func);
-static struct timer_list rt_secret_timer;
/*
* Interface to generic destination cache.
@@ -801,10 +800,11 @@
/*
* We change rt_genid and let gc do the cleanup
*/
-static void rt_secret_rebuild(unsigned long dummy)
+static void rt_secret_rebuild(unsigned long __net)
{
+ struct net *net = (struct net *)__net;
rt_cache_invalidate();
- mod_timer(&rt_secret_timer, jiffies + ip_rt_secret_interval);
+ mod_timer(&net->ipv4.rt_secret_timer, jiffies + ip_rt_secret_interval);
}
/*
@@ -3072,6 +3072,31 @@
};
#endif
+
+static __net_init int rt_secret_timer_init(struct net *net)
+{
+ net->ipv4.rt_secret_timer.function = rt_secret_rebuild;
+ net->ipv4.rt_secret_timer.data = (unsigned long)net;
+ init_timer_deferrable(&net->ipv4.rt_secret_timer);
+
+ net->ipv4.rt_secret_timer.expires =
+ jiffies + net_random() % ip_rt_secret_interval +
+ ip_rt_secret_interval;
+ add_timer(&net->ipv4.rt_secret_timer);
+ return 0;
+}
+
+static __net_exit void rt_secret_timer_exit(struct net *net)
+{
+ del_timer_sync(&net->ipv4.rt_secret_timer);
+}
+
+static __net_initdata struct pernet_operations rt_secret_timer_ops = {
+ .init = rt_secret_timer_init,
+ .exit = rt_secret_timer_exit,
+};
+
+
#ifdef CONFIG_NET_CLS_ROUTE
struct ip_rt_acct *ip_rt_acct __read_mostly;
#endif /* CONFIG_NET_CLS_ROUTE */
@@ -3124,19 +3149,14 @@
devinet_init();
ip_fib_init();
- rt_secret_timer.function = rt_secret_rebuild;
- rt_secret_timer.data = 0;
- init_timer_deferrable(&rt_secret_timer);
-
/* All the timers, started at system startup tend
to synchronize. Perturb it a bit.
*/
schedule_delayed_work(&expires_work,
net_random() % ip_rt_gc_interval + ip_rt_gc_interval);
- rt_secret_timer.expires = jiffies + net_random() % ip_rt_secret_interval +
- ip_rt_secret_interval;
- add_timer(&rt_secret_timer);
+ if (register_pernet_subsys(&rt_secret_timer_ops))
+ printk(KERN_ERR "Unable to setup rt_secret_timer\n");
if (ip_rt_proc_init())
printk(KERN_ERR "Unable to create route proc files\n");