diff options
Diffstat (limited to 'net/ipv4/inet_connection_sock.c')
| -rw-r--r-- | net/ipv4/inet_connection_sock.c | 14 |
1 files changed, 3 insertions, 11 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 94468a76c5b4e0..3fe021f1a566ad 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -78,17 +78,9 @@ int inet_csk_get_port(struct inet_hashinfo *hashinfo, int low = sysctl_local_port_range[0]; int high = sysctl_local_port_range[1]; int remaining = (high - low) + 1; - int rover; + int rover = net_random() % (high - low) + low; - spin_lock(&hashinfo->portalloc_lock); - if (hashinfo->port_rover < low) - rover = low; - else - rover = hashinfo->port_rover; do { - rover++; - if (rover > high) - rover = low; head = &hashinfo->bhash[inet_bhashfn(rover, hashinfo->bhash_size)]; spin_lock(&head->lock); inet_bind_bucket_for_each(tb, node, &head->chain) @@ -97,9 +89,9 @@ int inet_csk_get_port(struct inet_hashinfo *hashinfo, break; next: spin_unlock(&head->lock); + if (++rover > high) + rover = low; } while (--remaining > 0); - hashinfo->port_rover = rover; - spin_unlock(&hashinfo->portalloc_lock); /* Exhausted local port range during search? It is not * possible for us to be holding one of the bind hash |