diff options
Diffstat (limited to 'net/ipv4/inet_hashtables.c')
| -rw-r--r-- | net/ipv4/inet_hashtables.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 1612184ecc6f..2023d37b2708 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -92,6 +92,22 @@ void inet_put_port(struct sock *sk) EXPORT_SYMBOL(inet_put_port); +void __inet_inherit_port(struct sock *sk, struct sock *child) +{ + struct inet_hashinfo *table = sk->sk_prot->h.hashinfo; + const int bhash = inet_bhashfn(inet_sk(child)->num, table->bhash_size); + struct inet_bind_hashbucket *head = &table->bhash[bhash]; + struct inet_bind_bucket *tb; + + spin_lock(&head->lock); + tb = inet_csk(sk)->icsk_bind_hash; + sk_add_bind_node(child, &tb->owners); + inet_csk(child)->icsk_bind_hash = tb; + spin_unlock(&head->lock); +} + +EXPORT_SYMBOL_GPL(__inet_inherit_port); + /* * This lock without WQ_FLAG_EXCLUSIVE is good on UP and it can be very bad on SMP. * Look, when several writers sleep and reader wakes them up, all but one |