inet: add struct net argument to inet_bhashfn

Binding to some port in many namespaces may create too long
chains in bhash-es, so prepare the hashfn to take struct net
into account.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 045e799d3e1d..4c804b3c287b 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -103,7 +103,8 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
                 rover = net_random() % remaining + low;
 
                 do {
-                        head = &hashinfo->bhash[inet_bhashfn(rover, hashinfo->bhash_size)];
+                        head = &hashinfo->bhash[inet_bhashfn(net, rover,
+                                        hashinfo->bhash_size)];
                         spin_lock(&head->lock);
                         inet_bind_bucket_for_each(tb, node, &head->chain)
                                 if (tb->ib_net == net && tb->port == rover)
@@ -130,7 +131,8 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
                  */
                 snum = rover;
         } else {
-                head = &hashinfo->bhash[inet_bhashfn(snum, hashinfo->bhash_size)];
+                head = &hashinfo->bhash[inet_bhashfn(net, snum,
+                                hashinfo->bhash_size)];
                 spin_lock(&head->lock);
                 inet_bind_bucket_for_each(tb, node, &head->chain)
                         if (tb->ib_net == net && tb->port == snum)