tipc: Eliminate use of user registry by topology service

Simplifies TIPC's network topology service so that it no longer registers
its ports with the user registry, since the service doesn't take advantage
of any of the registry's capabilities.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index 23f43d03980cfd36d4ebb95ddb7dd3b685269f13..21abf1765b02e4546775ba0909a94df1c9976cdc 100644 (file)
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -36,7 +36,7 @@
 
 #include "core.h"
 #include "name_table.h"
-#include "user_reg.h"
+#include "port.h"
 #include "subscr.h"
 
 /**
@@ -64,7 +64,6 @@ struct subscriber {
  */
 
 struct top_srv {
-       u32 user_ref;
        u32 setup_port;
        atomic_t subscription_count;
        struct list_head subscriber_list;
@@ -494,7 +493,7 @@ static void subscr_named_msg_event(void *usr_handle,
 
        /* Create server port & establish connection to subscriber */
 
-       tipc_createport(topsrv.user_ref,
+       tipc_createport(0,
                        subscriber,
                        importance,
                        NULL,
@@ -549,13 +548,7 @@ int tipc_subscr_start(void)
        INIT_LIST_HEAD(&topsrv.subscriber_list);
 
        spin_lock_bh(&topsrv.lock);
-       res = tipc_attach(&topsrv.user_ref);
-       if (res) {
-               spin_unlock_bh(&topsrv.lock);
-               return res;
-       }
-
-       res = tipc_createport(topsrv.user_ref,
+       res = tipc_createport(0,
                              NULL,
                              TIPC_CRITICAL_IMPORTANCE,
                              NULL,
@@ -570,16 +563,17 @@ int tipc_subscr_start(void)
                goto failed;
 
        res = tipc_nametbl_publish_rsv(topsrv.setup_port, TIPC_NODE_SCOPE, &seq);
-       if (res)
+       if (res) {
+               tipc_deleteport(topsrv.setup_port);
+               topsrv.setup_port = 0;
                goto failed;
+       }
 
        spin_unlock_bh(&topsrv.lock);
        return 0;
 
 failed:
        err("Failed to create subscription service\n");
-       tipc_detach(topsrv.user_ref);
-       topsrv.user_ref = 0;
        spin_unlock_bh(&topsrv.lock);
        return res;
 }
@@ -590,8 +584,10 @@ void tipc_subscr_stop(void)
        struct subscriber *subscriber_temp;
        spinlock_t *subscriber_lock;
 
-       if (topsrv.user_ref) {
+       if (topsrv.setup_port) {
                tipc_deleteport(topsrv.setup_port);
+               topsrv.setup_port = 0;
+
                list_for_each_entry_safe(subscriber, subscriber_temp,
                                         &topsrv.subscriber_list,
                                         subscriber_list) {
@@ -600,7 +596,5 @@ void tipc_subscr_stop(void)
                        subscr_terminate(subscriber);
                        spin_unlock_bh(subscriber_lock);
                }
-               tipc_detach(topsrv.user_ref);
-               topsrv.user_ref = 0;
        }
 }