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Message-ID: <20080721140751.4796d6c5@extreme>
Date: Mon, 21 Jul 2008 14:07:51 -0700
From: Stephen Hemminger <shemminger@...tta.com>
To: David Miller <davem@...emloft.net>
Cc: netdev@...r.kernel.org
Subject: Re: [PATCH 2/3] netns: timer allocation
FIB timer list is a trivial size structure, avoid indirection and just
put it in existing ns.
Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
---
Sigh.. part 1 patch was not refreshed.
--- a/net/ipv6/ip6_fib.c 2008-07-21 14:06:22.000000000 -0700
+++ b/net/ipv6/ip6_fib.c 2008-07-21 14:06:32.000000000 -0700
@@ -661,16 +661,16 @@ static int fib6_add_rt2node(struct fib6_
static __inline__ void fib6_start_gc(struct net *net, struct rt6_info *rt)
{
- if (!timer_pending(net->ipv6.ip6_fib_timer) &&
+ if (!timer_pending(&net->ipv6.ip6_fib_timer) &&
(rt->rt6i_flags & (RTF_EXPIRES|RTF_CACHE)))
- mod_timer(net->ipv6.ip6_fib_timer, jiffies +
+ mod_timer(&net->ipv6.ip6_fib_timer, jiffies +
net->ipv6.sysctl.ip6_rt_gc_interval);
}
void fib6_force_start_gc(struct net *net)
{
- if (!timer_pending(net->ipv6.ip6_fib_timer))
- mod_timer(net->ipv6.ip6_fib_timer, jiffies +
+ if (!timer_pending(&net->ipv6.ip6_fib_timer))
+ mod_timer(&net->ipv6.ip6_fib_timer, jiffies +
net->ipv6.sysctl.ip6_rt_gc_interval);
}
@@ -1449,7 +1449,7 @@ void fib6_run_gc(unsigned long expires,
} else {
local_bh_disable();
if (!spin_trylock(&fib6_gc_lock)) {
- mod_timer(net->ipv6.ip6_fib_timer, jiffies + HZ);
+ mod_timer(&net->ipv6.ip6_fib_timer, jiffies + HZ);
local_bh_enable();
return;
}
@@ -1462,10 +1462,10 @@ void fib6_run_gc(unsigned long expires,
fib6_clean_all(net, fib6_age, 0, NULL);
if (gc_args.more)
- mod_timer(net->ipv6.ip6_fib_timer, jiffies +
+ mod_timer(&net->ipv6.ip6_fib_timer, jiffies +
net->ipv6.sysctl.ip6_rt_gc_interval);
else
- del_timer(net->ipv6.ip6_fib_timer);
+ del_timer(&net->ipv6.ip6_fib_timer);
spin_unlock_bh(&fib6_gc_lock);
}
@@ -1476,16 +1476,7 @@ static void fib6_gc_timer_cb(unsigned lo
static int fib6_net_init(struct net *net)
{
- int ret;
- struct timer_list *timer;
-
- ret = -ENOMEM;
- timer = kzalloc(sizeof(*timer), GFP_KERNEL);
- if (!timer)
- goto out;
-
- setup_timer(timer, fib6_gc_timer_cb, (unsigned long)net);
- net->ipv6.ip6_fib_timer = timer;
+ setup_timer(&net->ipv6.ip6_fib_timer, fib6_gc_timer_cb, (unsigned long)net);
net->ipv6.rt6_stats = kzalloc(sizeof(*net->ipv6.rt6_stats), GFP_KERNEL);
if (!net->ipv6.rt6_stats)
@@ -1519,9 +1510,7 @@ static int fib6_net_init(struct net *net
#endif
fib6_tables_init(net);
- ret = 0;
-out:
- return ret;
+ return 0;
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
out_fib6_main_tbl:
@@ -1532,15 +1521,14 @@ out_fib_table_hash:
out_rt6_stats:
kfree(net->ipv6.rt6_stats);
out_timer:
- kfree(timer);
- goto out;
+ return -ENOMEM;
}
static void fib6_net_exit(struct net *net)
{
rt6_ifdown(net, NULL);
- del_timer_sync(net->ipv6.ip6_fib_timer);
- kfree(net->ipv6.ip6_fib_timer);
+ del_timer_sync(&net->ipv6.ip6_fib_timer);
+
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
kfree(net->ipv6.fib6_local_tbl);
#endif
--- a/include/net/netns/ipv6.h 2008-07-21 14:05:01.000000000 -0700
+++ b/include/net/netns/ipv6.h 2008-07-21 14:06:32.000000000 -0700
@@ -39,7 +39,7 @@ struct netns_ipv6 {
#endif
struct rt6_info *ip6_null_entry;
struct rt6_statistics *rt6_stats;
- struct timer_list *ip6_fib_timer;
+ struct timer_list ip6_fib_timer;
struct hlist_head *fib_table_hash;
struct fib6_table *fib6_main_tbl;
struct dst_ops *ip6_dst_ops;
--
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