diff options
| -rw-r--r-- | include/net/inet_hashtables.h | 34 | ||||
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 29 |
2 files changed, 36 insertions, 27 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index c816708fa55..6731df2cea6 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -240,4 +240,38 @@ static inline void __inet_hash(struct inet_hashinfo *hashinfo, if (listen_possible && sk->sk_state == TCP_LISTEN) wake_up(&hashinfo->lhash_wait); } + +static inline void inet_hash(struct inet_hashinfo *hashinfo, struct sock *sk) +{ + if (sk->sk_state != TCP_CLOSE) { + local_bh_disable(); + __inet_hash(hashinfo, sk, 1); + local_bh_enable(); + } +} + +static inline void inet_unhash(struct inet_hashinfo *hashinfo, struct sock *sk) +{ + rwlock_t *lock; + + if (sk_unhashed(sk)) + goto out; + + if (sk->sk_state == TCP_LISTEN) { + local_bh_disable(); + inet_listen_wlock(hashinfo); + lock = &hashinfo->lhash_lock; + } else { + struct inet_ehash_bucket *head = &hashinfo->ehash[sk->sk_hashent]; + lock = &head->lock; + write_lock_bh(&head->lock); + } + + if (__sk_del_node_init(sk)) + sock_prot_dec_use(sk->sk_prot); + write_unlock_bh(lock); +out: + if (sk->sk_state == TCP_LISTEN) + wake_up(&hashinfo->lhash_wait); +} #endif /* _INET_HASHTABLES_H */ diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 5f9ad95304c..dca1be67164 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -230,37 +230,12 @@ fail: static void tcp_v4_hash(struct sock *sk) { - if (sk->sk_state != TCP_CLOSE) { - local_bh_disable(); - __inet_hash(&tcp_hashinfo, sk, 1); - local_bh_enable(); - } + inet_hash(&tcp_hashinfo, sk); } void tcp_unhash(struct sock *sk) { - rwlock_t *lock; - - if (sk_unhashed(sk)) - goto ende; - - if (sk->sk_state == TCP_LISTEN) { - local_bh_disable(); - inet_listen_wlock(&tcp_hashinfo); - lock = &tcp_hashinfo.lhash_lock; - } else { - struct inet_ehash_bucket *head = &tcp_hashinfo.ehash[sk->sk_hashent]; - lock = &head->lock; - write_lock_bh(&head->lock); - } - - if (__sk_del_node_init(sk)) - sock_prot_dec_use(sk->sk_prot); - write_unlock_bh(lock); - - ende: - if (sk->sk_state == TCP_LISTEN) - wake_up(&tcp_hashinfo.lhash_wait); + inet_unhash(&tcp_hashinfo, sk); } /* Don't inline this cruft. Here are some nice properties to |