The function rt_is_expired is used to verify that a cached dst is valid.
Currently, this function ignores the rt.dst->expires value.
Add a check to rt_is_expired that validates that the dst is not expired.
Signed-off-by: Leone Fernando <[email protected]>
---
net/ipv4/route.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 5fd54103174f..4e6b7a67f177 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -389,7 +389,8 @@ static inline int ip_rt_proc_init(void)
static inline bool rt_is_expired(const struct rtable *rth)
{
- return rth->rt_genid != rt_genid_ipv4(dev_net(rth->dst.dev));
+ return rth->rt_genid != rt_genid_ipv4(dev_net(rth->dst.dev)) ||
+ (rth->dst.expires && time_after(jiffies, rth->dst.expires));
}
void rt_cache_flush(struct net *net)
--
2.34.1