diff options
| -rw-r--r-- | include/net/inet_hashtables.h | 3 | ||||
| -rw-r--r-- | net/ipv4/inet_connection_sock.c | 2 | ||||
| -rw-r--r-- | net/ipv4/inet_hashtables.c | 5 |
3 files changed, 6 insertions, 4 deletions
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index 8d98dc76bd76..a44e2248b2ef 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -134,7 +134,7 @@ struct inet_hashinfo { struct inet_bind_hashbucket *bhash; unsigned int bhash_size; - int bsockets; + /* 4 bytes hole on 64 bit */ struct kmem_cache *bind_bucket_cachep; @@ -151,6 +151,7 @@ struct inet_hashinfo { struct inet_listen_hashbucket listening_hash[INET_LHTABLE_SIZE] ____cacheline_aligned_in_smp; + atomic_t bsockets; }; static inline struct inet_ehash_bucket *inet_ehash_bucket( diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 9bc6a187bdce..22cd19ee44e5 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -119,7 +119,7 @@ again: (tb->num_owners < smallest_size || smallest_size == -1)) { smallest_size = tb->num_owners; smallest_rover = rover; - if (hashinfo->bsockets > (high - low) + 1) { + if (atomic_read(&hashinfo->bsockets) > (high - low) + 1) { spin_unlock(&head->lock); snum = smallest_rover; goto have_snum; diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index d7b6178bf48b..625cc5f64c94 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -62,7 +62,7 @@ void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb, { struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; - hashinfo->bsockets++; + atomic_inc(&hashinfo->bsockets); inet_sk(sk)->num = snum; sk_add_bind_node(sk, &tb->owners); @@ -81,7 +81,7 @@ static void __inet_put_port(struct sock *sk) struct inet_bind_hashbucket *head = &hashinfo->bhash[bhash]; struct inet_bind_bucket *tb; - hashinfo->bsockets--; + atomic_dec(&hashinfo->bsockets); spin_lock(&head->lock); tb = inet_csk(sk)->icsk_bind_hash; @@ -532,6 +532,7 @@ void inet_hashinfo_init(struct inet_hashinfo *h) { int i; + atomic_set(&h->bsockets, 0); for (i = 0; i < INET_LHTABLE_SIZE; i++) { spin_lock_init(&h->listening_hash[i].lock); INIT_HLIST_NULLS_HEAD(&h->listening_hash[i].head, |