From: Stephen Hemminger <shemminger@vyatta.com>
Date: Tue, 22 Jul 2008 21:34:09 +0000 (-0700)
Subject: ipv6: use round_jiffies
X-Git-Tag: firefly_0821_release~19455^2~8
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c8a4522245e9931a53a98d5160bb4c00d3f73921;p=firefly-linux-kernel-4.4.55.git

ipv6: use round_jiffies

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>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index e0922975c410..03e23d058ec5 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1462,8 +1462,9 @@ void fib6_run_gc(unsigned long expires, struct net *net)
 	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);