-static inline void __inet_hash(struct inet_hashinfo *hashinfo,
- struct sock *sk, const int listen_possible)
-{
- struct hlist_head *list;
- rwlock_t *lock;
-
- BUG_TRAP(sk_unhashed(sk));
- if (listen_possible && sk->sk_state == TCP_LISTEN) {
- list = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)];
- lock = &hashinfo->lhash_lock;
- inet_listen_wlock(hashinfo);
- } else {
- struct inet_ehash_bucket *head;
- sk->sk_hash = inet_sk_ehashfn(sk);
- head = inet_ehash_bucket(hashinfo, sk->sk_hash);
- list = &head->chain;
- lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
- write_lock(lock);
- }
- __sk_add_node(sk, list);
- sock_prot_inc_use(sk->sk_prot);
- write_unlock(lock);
- 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 {
- lock = inet_ehash_lockp(hashinfo, sk->sk_hash);
- write_lock_bh(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);
-}