ipv4: Cache routes in nexthop exception entries.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index fe2ca02..da80dc1 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -140,28 +140,7 @@
},
};
-static void free_nh_exceptions(struct fib_nh *nh)
-{
- struct fnhe_hash_bucket *hash = nh->nh_exceptions;
- int i;
-
- for (i = 0; i < FNHE_HASH_SIZE; i++) {
- struct fib_nh_exception *fnhe;
-
- fnhe = rcu_dereference_protected(hash[i].chain, 1);
- while (fnhe) {
- struct fib_nh_exception *next;
-
- next = rcu_dereference_protected(fnhe->fnhe_next, 1);
- kfree(fnhe);
-
- fnhe = next;
- }
- }
- kfree(hash);
-}
-
-static void rt_nexthop_free(struct rtable __rcu **rtp)
+static void rt_fibinfo_free(struct rtable __rcu **rtp)
{
struct rtable *rt = rcu_dereference_protected(*rtp, 1);
@@ -176,7 +155,31 @@
dst_free(&rt->dst);
}
-static void rt_nexthop_free_cpus(struct rtable __rcu * __percpu *rtp)
+static void free_nh_exceptions(struct fib_nh *nh)
+{
+ struct fnhe_hash_bucket *hash = nh->nh_exceptions;
+ int i;
+
+ for (i = 0; i < FNHE_HASH_SIZE; i++) {
+ struct fib_nh_exception *fnhe;
+
+ fnhe = rcu_dereference_protected(hash[i].chain, 1);
+ while (fnhe) {
+ struct fib_nh_exception *next;
+
+ next = rcu_dereference_protected(fnhe->fnhe_next, 1);
+
+ rt_fibinfo_free(&fnhe->fnhe_rth);
+
+ kfree(fnhe);
+
+ fnhe = next;
+ }
+ }
+ kfree(hash);
+}
+
+static void rt_fibinfo_free_cpus(struct rtable __rcu * __percpu *rtp)
{
int cpu;
@@ -203,8 +206,8 @@
dev_put(nexthop_nh->nh_dev);
if (nexthop_nh->nh_exceptions)
free_nh_exceptions(nexthop_nh);
- rt_nexthop_free_cpus(nexthop_nh->nh_pcpu_rth_output);
- rt_nexthop_free(&nexthop_nh->nh_rth_input);
+ rt_fibinfo_free_cpus(nexthop_nh->nh_pcpu_rth_output);
+ rt_fibinfo_free(&nexthop_nh->nh_rth_input);
} endfor_nexthops(fi);
release_net(fi->fib_net);