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authorTony Lindgren <tony@atomide.com>2012-11-09 14:58:01 -0800
committerTony Lindgren <tony@atomide.com>2012-11-09 14:58:01 -0800
commitedf8dde393f879fc2d8c22d4bc01ff8d37b80e1a (patch)
tree61425adc8b2059a9c12a3ce66ba7361fea1b0bb3 /net/ipv4/route.c
parent6ba54ab4a49bbad736b0254aa6bdf0cb83013815 (diff)
parent3d70f8c617a436c7146ecb81df2265b4626dfe89 (diff)
Merge branch 'linus' into omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3
Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 432f4bb7723..a8c651216fa 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1163,8 +1163,12 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe,
spin_lock_bh(&fnhe_lock);
if (daddr == fnhe->fnhe_daddr) {
- struct rtable *orig;
-
+ struct rtable *orig = rcu_dereference(fnhe->fnhe_rth);
+ if (orig && rt_is_expired(orig)) {
+ fnhe->fnhe_gw = 0;
+ fnhe->fnhe_pmtu = 0;
+ fnhe->fnhe_expires = 0;
+ }
if (fnhe->fnhe_pmtu) {
unsigned long expires = fnhe->fnhe_expires;
unsigned long diff = expires - jiffies;
@@ -1181,7 +1185,6 @@ static bool rt_bind_exception(struct rtable *rt, struct fib_nh_exception *fnhe,
} else if (!rt->rt_gateway)
rt->rt_gateway = daddr;
- orig = rcu_dereference(fnhe->fnhe_rth);
rcu_assign_pointer(fnhe->fnhe_rth, rt);
if (orig)
rt_free(orig);