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ipv4: Cache routes in nexthop exception entries.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2012-07-31 15:02:02 -07:00
parent d26b3a7c4b
commit c5038a8327
3 changed files with 85 additions and 70 deletions
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net/ipv4/fib_semantics.c
+28 -25
View File
@@ -140,28 +140,7 @@ const struct fib_prop fib_props[RTN_MAX + 1] = {
},
};
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 @@ static void rt_nexthop_free(struct rtable __rcu **rtp)
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 @@ static void free_fib_info_rcu(struct rcu_head *head)
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);