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Commit bc9259a8 authored by Nicolas Dichtel's avatar Nicolas Dichtel Committed by David S. Miller
Browse files

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: default avatarNicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 68b3f28c

net/ipv4/inetpeer.c

+4 −1
Original line number Diff line number Diff line
@@ -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. */