[NetLabel]: correct improper handling of non-NetLabel peer contexts

[linux-2.6] / net / sunrpc / xprt.c

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index a85f82baefc127d48359f062861d34c8fd591c33..1f786f68729d465c8bc7f3fb51b45465a4c89aa2 100644 (file)
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -926,6 +926,7 @@ struct rpc_xprt *xprt_create_transport(int proto, struct sockaddr *ap, size_t si
                return ERR_PTR(result);
        }
 
+       kref_init(&xprt->kref);
        spin_lock_init(&xprt->transport_lock);
        spin_lock_init(&xprt->reserve_lock);
 
@@ -958,16 +959,37 @@ struct rpc_xprt *xprt_create_transport(int proto, struct sockaddr *ap, size_t si
 
 /**
  * xprt_destroy - destroy an RPC transport, killing off all requests.
- * @xprt: transport to destroy
+ * @kref: kref for the transport to destroy
  *
  */
-int xprt_destroy(struct rpc_xprt *xprt)
+static void xprt_destroy(struct kref *kref)
 {
+       struct rpc_xprt *xprt = container_of(kref, struct rpc_xprt, kref);
+
        dprintk("RPC:      destroying transport %p\n", xprt);
        xprt->shutdown = 1;
        del_timer_sync(&xprt->timer);
        xprt->ops->destroy(xprt);
        kfree(xprt);
+}
 
-       return 0;
+/**
+ * xprt_put - release a reference to an RPC transport.
+ * @xprt: pointer to the transport
+ *
+ */
+void xprt_put(struct rpc_xprt *xprt)
+{
+       kref_put(&xprt->kref, xprt_destroy);
+}
+
+/**
+ * xprt_get - return a reference to an RPC transport.
+ * @xprt: pointer to the transport
+ *
+ */
+struct rpc_xprt *xprt_get(struct rpc_xprt *xprt)
+{
+       kref_get(&xprt->kref);
+       return xprt;
 }