* Function returns
* 0 : The call was initiated. The callback will be invoked when the call completes.
* <0 : An error occured when trying to set up the call. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.
* Function returns
* 0 : The call was initiated. The callback will be invoked when the call completes.
* <0 : An error occured when trying to set up the call. The callback will not be invoked.
*
* When the callback is invoked, status indicates the result:
* RPC_STATUS_SUCCESS : We got a successful response from the mount daemon.