The ip6_fib_timer gc timer is dynamically allocated and initialized in
the ip6 fib init function. There are no more references to a
static global variable. That will allow to make multiple instance
of the garbage collecting timer and make them per namespace.
Signed-off-by: Daniel Lezcano <[EMAIL PROTECTED]>
Signed-off-by: Benjamin Thery <[EMAIL PROTECTED]>
---
net/ipv6/ip6_fib.c | 33 +++++++++++++++++++++------------
1 file changed, 21 insertions(+), 12 deletions(-)
Index: net-2.6.25/net/ipv6/ip6_fib.c
===================================================================
--- net-2.6.25.orig/net/ipv6/ip6_fib.c
+++ net-2.6.25/net/ipv6/ip6_fib.c
@@ -95,8 +95,7 @@ static __u32 rt_sernum;
static void fib6_gc_timer_cb(unsigned long arg);
-static DEFINE_TIMER(ip6_fib_timer, fib6_gc_timer_cb, 0,
- (unsigned long)&init_net);
+static struct timer_list *ip6_fib_timer;
static struct fib6_walker_t fib6_walker_list = {
.prev = &fib6_walker_list,
@@ -666,16 +665,16 @@ static int fib6_add_rt2node(struct fib6_
static __inline__ void fib6_start_gc(struct rt6_info *rt)
{
- if (ip6_fib_timer.expires == 0 &&
+ if (ip6_fib_timer->expires == 0 &&
(rt->rt6i_flags & (RTF_EXPIRES|RTF_CACHE)))
- mod_timer(&ip6_fib_timer, jiffies +
+ mod_timer(ip6_fib_timer, jiffies +
init_net.ipv6.sysctl.ip6_rt_gc_interval);
}
void fib6_force_start_gc(void)
{
- if (ip6_fib_timer.expires == 0)
- mod_timer(&ip6_fib_timer, jiffies +
+ if (ip6_fib_timer->expires == 0)
+ mod_timer(ip6_fib_timer, jiffies +
init_net.ipv6.sysctl.ip6_rt_gc_interval);
}
@@ -1444,7 +1443,7 @@ void fib6_run_gc(unsigned long expires,
} else {
local_bh_disable();
if (!spin_trylock(&fib6_gc_lock)) {
- mod_timer(&ip6_fib_timer, jiffies + HZ);
+ mod_timer(ip6_fib_timer, jiffies + HZ);
local_bh_enable();
return;
}
@@ -1457,11 +1456,11 @@ void fib6_run_gc(unsigned long expires,
fib6_clean_all(net, fib6_age, 0, NULL);
if (gc_args.more)
- mod_timer(&ip6_fib_timer, jiffies +
+ mod_timer(ip6_fib_timer, jiffies +
net->ipv6.sysctl.ip6_rt_gc_interval);
else {
- del_timer(&ip6_fib_timer);
- ip6_fib_timer.expires = 0;
+ del_timer(ip6_fib_timer);
+ ip6_fib_timer->expires = 0;
}
spin_unlock_bh(&fib6_gc_lock);
}
@@ -1541,9 +1540,16 @@ int __init fib6_init(void)
if (!fib6_node_kmem)
goto out;
+ ret = -ENOMEM;
+ ip6_fib_timer = kzalloc(sizeof(*ip6_fib_timer), GFP_KERNEL);
+ if (!ip6_fib_timer)
+ goto out_kmem_cache_create;
+
+ setup_timer(ip6_fib_timer, fib6_gc_timer_cb, (unsigned long)&init_net);
+
ret = register_pernet_subsys(&fib6_net_ops);
if (ret)
- goto out_kmem_cache_create;
+ goto out_timer;
ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib);
if (ret)
@@ -1553,6 +1559,8 @@ out:
out_unregister_subsys:
unregister_pernet_subsys(&fib6_net_ops);
+out_timer:
+ kfree(ip6_fib_timer);
out_kmem_cache_create:
kmem_cache_destroy(fib6_node_kmem);
goto out;
@@ -1560,7 +1568,8 @@ out_kmem_cache_create:
void fib6_gc_cleanup(void)
{
- del_timer(&ip6_fib_timer);
+ del_timer(ip6_fib_timer);
+ kfree(ip6_fib_timer);
unregister_pernet_subsys(&fib6_net_ops);
kmem_cache_destroy(fib6_node_kmem);
}
--
--
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