diff options
| -rw-r--r-- | net/ipv4/inetpeer.c | 1 | ||||
| -rw-r--r-- | net/ipv4/route.c | 22 |
2 files changed, 18 insertions, 5 deletions
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c index 6442c35edb0..86b1d0878df 100644 --- a/net/ipv4/inetpeer.c +++ b/net/ipv4/inetpeer.c @@ -511,6 +511,7 @@ struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create) p->rate_tokens = 0; p->rate_last = 0; p->pmtu_expires = 0; + p->pmtu_orig = 0; memset(&p->redirect_learned, 0, sizeof(p->redirect_learned)); INIT_LIST_HEAD(&p->unused); diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 5655095a89e..209989cf7d1 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1533,9 +1533,15 @@ unsigned short ip_rt_frag_needed(struct net *net, struct iphdr *iph, if (mtu < ip_rt_min_pmtu) mtu = ip_rt_min_pmtu; if (!peer->pmtu_expires || mtu < peer->pmtu_learned) { + unsigned long pmtu_expires; + + pmtu_expires = jiffies + ip_rt_mtu_expires; + if (!pmtu_expires) + pmtu_expires = 1UL; + est_mtu = mtu; peer->pmtu_learned = mtu; - peer->pmtu_expires = jiffies + ip_rt_mtu_expires; + peer->pmtu_expires = pmtu_expires; } inet_putpeer(peer); @@ -1549,7 +1555,7 @@ static void check_peer_pmtu(struct dst_entry *dst, struct inet_peer *peer) { unsigned long expires = peer->pmtu_expires; - if (time_before(expires, jiffies)) { + if (time_before(jiffies, expires)) { u32 orig_dst_mtu = dst_mtu(dst); if (peer->pmtu_learned < orig_dst_mtu) { if (!peer->pmtu_orig) @@ -1574,14 +1580,20 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu) if (mtu < ip_rt_min_pmtu) mtu = ip_rt_min_pmtu; if (!peer->pmtu_expires || mtu < peer->pmtu_learned) { + unsigned long pmtu_expires; + + pmtu_expires = jiffies + ip_rt_mtu_expires; + if (!pmtu_expires) + pmtu_expires = 1UL; + peer->pmtu_learned = mtu; - peer->pmtu_expires = jiffies + ip_rt_mtu_expires; + peer->pmtu_expires = pmtu_expires; atomic_inc(&__rt_peer_genid); rt->rt_peer_genid = rt_peer_genid(); - - check_peer_pmtu(dst, peer); } + check_peer_pmtu(dst, peer); + inet_putpeer(peer); } } |