rxrpc: Provide more refcount helper functions
Provide refcount helper functions for connections so that the code doesn't
touch local or connection usage counts directly.
Also make it such that local and peer put functions can take a NULL
pointer.
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index d83f2cb..45849a6 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -515,7 +515,7 @@
rb_insert_color(&call->conn_node, &conn->calls);
conn->channels[call->channel] = call;
sock_hold(&rx->sk);
- atomic_inc(&conn->usage);
+ rxrpc_get_connection(conn);
write_unlock_bh(&conn->lock);
spin_lock(&conn->params.peer->lock);