From: Stephen Hemminger <shemminger@vyatta.com>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Subject: [PATCH 3/6] ipv6: use round_jiffies
Date: Mon, 21 Jul 2008 12:28:37 -0700 [thread overview]
Message-ID: <20080721192920.144475864@vyatta.com> (raw)
In-Reply-To: 20080721192834.221648982@vyatta.com
[-- Attachment #1: ipv6-round.patch --]
[-- Type: text/plain, Size: 821 bytes --]
This timer normally happens once a minute, there is no need to cause an
early wakeup for it, so align it to next second boundary to safe power.
It can't be deferred because then it could take too long on cleanup or DoS.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
--- a/net/ipv6/ip6_fib.c 2008-07-21 12:06:44.000000000 -0700
+++ b/net/ipv6/ip6_fib.c 2008-07-21 12:07:41.000000000 -0700
@@ -1462,8 +1462,9 @@ 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 +
- net->ipv6.sysctl.ip6_rt_gc_interval);
+ mod_timer(&net->ipv6.ip6_fib_timer,
+ round_jiffies(jiffies
+ + net->ipv6.sysctl.ip6_rt_gc_interval));
else
del_timer(&net->ipv6.ip6_fib_timer);
spin_unlock_bh(&fib6_gc_lock);
--
next prev parent reply other threads:[~2008-07-21 19:31 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-21 19:28 [PATCH 0/6] IPV6 related gc bug + cleanups Stephen Hemminger
2008-07-21 19:28 ` [PATCH 1/6] ipv6: use timer pending Stephen Hemminger
2008-07-21 20:21 ` David Miller
2008-07-21 23:16 ` Ben Greear
2008-07-22 19:04 ` Stephen Hemminger
2008-07-22 19:10 ` Ben Greear
2008-07-23 0:35 ` Ben Greear
2008-07-21 19:28 ` [PATCH 2/6] netns: dont alloc ipv6 fib timer list Stephen Hemminger
2008-07-21 20:26 ` David Miller
2008-07-21 20:30 ` Stephen Hemminger
2008-07-21 20:33 ` David Miller
2008-07-21 20:44 ` [PATCH 2/3] netns: timer allocation Stephen Hemminger
2008-07-21 20:47 ` David Miller
2008-07-21 21:07 ` Stephen Hemminger
2008-07-21 23:28 ` David Miller
2008-07-22 2:20 ` [PATCH 2/6] netns: dont alloc ipv6 fib timer list Daniel Lezcano
2008-07-21 19:28 ` Stephen Hemminger [this message]
2008-07-21 19:28 ` [PATCH 4/6] ipv6: use spin_trylock_bh Stephen Hemminger
2008-07-21 19:28 ` [PATCH 5/6] ipv6: use kcalloc Stephen Hemminger
2008-07-21 19:28 ` [PATCH 6/6] ipv6: icmp6_dst_gc return change Stephen Hemminger
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