1 files changed, 3 insertions, 11 deletions

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 94468a76c5b..3fe021f1a56 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