From bc9259a8bae9e814fc1f775a1b3effa13e6ad330 Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Thu, 27 Sep 2012 04:11:00 +0000 Subject: inetpeer: fix token initialization When jiffies wraps around (for example, 5 minutes after the boot, see INITIAL_JIFFIES) and peer has just been created, now - peer->rate_last can be < XRLIM_BURST_FACTOR * timeout, so token is not set to the maximum value, thus some icmp packets can be unexpectedly dropped. Fix this case by initializing last_rate to 60 seconds in the past. Signed-off-by: Nicolas Dichtel Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv4/inetpeer.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'net/ipv4/inetpeer.c') diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c index e1e0a4e8fd34..c7527f6b9ad9 100644 --- a/net/ipv4/inetpeer.c +++ b/net/ipv4/inetpeer.c @@ -510,7 +510,10 @@ relookup: secure_ipv6_id(daddr->addr.a6)); p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW; p->rate_tokens = 0; - p->rate_last = 0; + /* 60*HZ is arbitrary, but chosen enough high so that the first + * calculation of tokens is at its maximum. + */ + p->rate_last = jiffies - 60*HZ; INIT_LIST_HEAD(&p->gc_list); /* Link the node. */ -- cgit v1.2.3-59-g8ed1b