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| author | Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2012-09-27 04:11:00 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-27 19:27:39 -0400 |
| commit | bc9259a8bae9e814fc1f775a1b3effa13e6ad330 (patch) | |
| tree | 22ec65e032e8080daca4e9ac4dd5227b532a4040 | |
| parent | 68b3f28c11bf896be32ad2a2e151aaa5f4a7c98e (diff) | |
| download | linux-bc9259a8bae9e814fc1f775a1b3effa13e6ad330.tar.gz | |
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 <nicolas.dichtel@6wind.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv4/inetpeer.c | 5 |
1 files changed, 4 insertions, 1 deletions
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. */ |