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Message-Id: <20120719.085038.1115505959071907817.davem@davemloft.net>
Date: Thu, 19 Jul 2012 08:50:38 -0700 (PDT)
From: David Miller <davem@...emloft.net>
To: netdev@...r.kernel.org
Subject: [PATCH] ipv4: Fix time difference calculation in
rt_bind_exception().
Reported-by: Steffen Klassert <steffen.klassert@...unet.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
---
net/ipv4/route.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f67e702..2c25581 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1907,7 +1907,7 @@ static void rt_bind_exception(struct rtable *rt, struct fib_nh *nh, __be32 daddr
if (fnhe->fnhe_daddr == daddr) {
if (fnhe->fnhe_pmtu) {
unsigned long expires = fnhe->fnhe_expires;
- unsigned long diff = jiffies - expires;
+ unsigned long diff = expires - jiffies;
if (time_before(jiffies, expires)) {
rt->rt_pmtu = fnhe->fnhe_pmtu;
--
1.7.10.4
--
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