vdo_start_operation
int result = vdo_start_operation(&manager->state, action->operation);
int vdo_start_operation(struct admin_state *state,
result = vdo_start_operation(&vdo->admin.state,
vdo_start_operation(state, vdo->suspend_type));
result = vdo_start_operation(&vdo->admin.state, VDO_ADMIN_STATE_LOADING);
result = vdo_start_operation(&vdo->admin.state,
result = vdo_start_operation(&vdo->admin.state,
result = vdo_start_operation(&vdo->admin.state,