[NETNS]: Add netns refcnt debug to fib rules.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 4 insertions, 2 deletions

diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 34349f9f4331..a5c6ccc5bb19 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -87,6 +87,7 @@ static inline void fib_rule_get(struct fib_rule *rule)
 static inline void fib_rule_put_rcu(struct rcu_head *head)
 {
         struct fib_rule *rule = container_of(head, struct fib_rule, rcu);
+        release_net(rule->fr_net);
         kfree(rule);
 }
 
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 540c07283e31..e3e9ab0f74e3 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -29,7 +29,7 @@ int fib_default_rule_add(struct fib_rules_ops *ops,
         r->pref = pref;
         r->table = table;
         r->flags = flags;
-        r->fr_net = ops->fro_net;
+        r->fr_net = hold_net(ops->fro_net);
 
         /* The lock is not required here, the list in unreacheable
          * at the moment this function is called */
@@ -243,7 +243,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
                 err = -ENOMEM;
                 goto errout;
         }
-        rule->fr_net = net;
+        rule->fr_net = hold_net(net);
 
         if (tb[FRA_PRIORITY])
                 rule->pref = nla_get_u32(tb[FRA_PRIORITY]);
@@ -344,6 +344,7 @@ static int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr* nlh, void *arg)
         return 0;
 
 errout_free:
+        release_net(rule->fr_net);
         kfree(rule);
 errout:
         rules_ops_put(ops);