> +fn init_qom() {
> + static ONCE: Mutex<Cell<bool>> = Mutex::new(Cell::new(false));
> +
> + let g = ONCE.lock().unwrap();
> + if !g.get() {
> + unsafe {
> + module_call_init(module_init_type::MODULE_INIT_QOM);
> + }
> + g.set(true);
> + }
> +}Only one question: what is the purpose of using a Mutex here? Others LGTM, Reviewed-by: Zhao Liu <zhao1....@intel.com>
