tipc: eliminate redundant locking
The three functions tipc_portimportance(), tipc_portunreliable() and
tipc_portunreturnable() and their corresponding tipc_set* functions,
are all grabbing port_lock when accessing the targeted port. This is
unnecessary in the current code, since these calls only are made from
within socket downcalls, already protected by sock_lock.
We remove the redundant locking. Also, since the functions now become
trivial one-liners, we move them to port.h and make them inline.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index d147eaa..6c71988 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -197,9 +197,9 @@
spin_unlock_bh(tp_ptr->lock);
if (sock->state == SS_READY) {
- tipc_set_portunreturnable(tp_ptr->ref, 1);
+ tipc_port_set_unreturnable(tp_ptr, true);
if (sock->type == SOCK_DGRAM)
- tipc_set_portunreliable(tp_ptr->ref, 1);
+ tipc_port_set_unreliable(tp_ptr, true);
}
return 0;
}
@@ -1675,7 +1675,7 @@
tipc_port_connect(new_ref, &peer);
new_sock->state = SS_CONNECTED;
- tipc_set_portimportance(new_ref, msg_importance(msg));
+ tipc_port_set_importance(new_port, msg_importance(msg));
if (msg_named(msg)) {
new_port->conn_type = msg_nametype(msg);
new_port->conn_instance = msg_nameinst(msg);
@@ -1797,16 +1797,16 @@
switch (opt) {
case TIPC_IMPORTANCE:
- res = tipc_set_portimportance(tport->ref, value);
+ tipc_port_set_importance(tport, value);
break;
case TIPC_SRC_DROPPABLE:
if (sock->type != SOCK_STREAM)
- res = tipc_set_portunreliable(tport->ref, value);
+ tipc_port_set_unreliable(tport, value);
else
res = -ENOPROTOOPT;
break;
case TIPC_DEST_DROPPABLE:
- res = tipc_set_portunreturnable(tport->ref, value);
+ tipc_port_set_unreturnable(tport, value);
break;
case TIPC_CONN_TIMEOUT:
tipc_sk(sk)->conn_timeout = value;
@@ -1855,13 +1855,13 @@
switch (opt) {
case TIPC_IMPORTANCE:
- res = tipc_portimportance(tport->ref, &value);
+ value = tipc_port_importance(tport);
break;
case TIPC_SRC_DROPPABLE:
- res = tipc_portunreliable(tport->ref, &value);
+ value = tipc_port_unreliable(tport);
break;
case TIPC_DEST_DROPPABLE:
- res = tipc_portunreturnable(tport->ref, &value);
+ value = tipc_port_unreturnable(tport);
break;
case TIPC_CONN_TIMEOUT:
value = tipc_sk(sk)->conn_timeout;