198 static void umh_complete(struct subprocess_info *sub_info)  in umh_complete()  argument
200 	struct completion *comp = xchg(&sub_info->complete, NULL);  in umh_complete()
209 		call_usermodehelper_freeinfo(sub_info);  in umh_complete()
217 	struct subprocess_info *sub_info = data;  in call_usermodehelper_exec_async()  local
242 	if (sub_info->init) {  in call_usermodehelper_exec_async()
243 		retval = sub_info->init(sub_info, new);  in call_usermodehelper_exec_async()
252 	retval = do_execve(getname_kernel(sub_info->path),  in call_usermodehelper_exec_async()
253 			   (const char __user *const __user *)sub_info->argv,  in call_usermodehelper_exec_async()
254 			   (const char __user *const __user *)sub_info->envp);  in call_usermodehelper_exec_async()
256 	sub_info->retval = retval;  in call_usermodehelper_exec_async()
261 	if (!(sub_info->wait & UMH_WAIT_PROC))  in call_usermodehelper_exec_async()
262 		umh_complete(sub_info);  in call_usermodehelper_exec_async()
269 static void call_usermodehelper_exec_sync(struct subprocess_info *sub_info)  in call_usermodehelper_exec_sync()  argument
275 	pid = kernel_thread(call_usermodehelper_exec_async, sub_info, SIGCHLD);  in call_usermodehelper_exec_sync()
277 		sub_info->retval = pid;  in call_usermodehelper_exec_sync()
298 			sub_info->retval = ret;  in call_usermodehelper_exec_sync()
304 	umh_complete(sub_info);  in call_usermodehelper_exec_sync()
323 	struct subprocess_info *sub_info =  in call_usermodehelper_exec_work()  local
326 	if (sub_info->wait & UMH_WAIT_PROC) {  in call_usermodehelper_exec_work()
327 		call_usermodehelper_exec_sync(sub_info);  in call_usermodehelper_exec_work()
335 		pid = kernel_thread(call_usermodehelper_exec_async, sub_info,  in call_usermodehelper_exec_work()
338 			sub_info->retval = pid;  in call_usermodehelper_exec_work()
339 			umh_complete(sub_info);  in call_usermodehelper_exec_work()
525 	struct subprocess_info *sub_info;  in call_usermodehelper_setup()  local
526 	sub_info = kzalloc(sizeof(struct subprocess_info), gfp_mask);  in call_usermodehelper_setup()
527 	if (!sub_info)  in call_usermodehelper_setup()
530 	INIT_WORK(&sub_info->work, call_usermodehelper_exec_work);  in call_usermodehelper_setup()
531 	sub_info->path = path;  in call_usermodehelper_setup()
532 	sub_info->argv = argv;  in call_usermodehelper_setup()
533 	sub_info->envp = envp;  in call_usermodehelper_setup()
535 	sub_info->cleanup = cleanup;  in call_usermodehelper_setup()
536 	sub_info->init = init;  in call_usermodehelper_setup()
537 	sub_info->data = data;  in call_usermodehelper_setup()
539 	return sub_info;  in call_usermodehelper_setup()
555 int call_usermodehelper_exec(struct subprocess_info *sub_info, int wait)  in call_usermodehelper_exec()  argument
560 	if (!sub_info->path) {  in call_usermodehelper_exec()
561 		call_usermodehelper_freeinfo(sub_info);  in call_usermodehelper_exec()
574 	sub_info->complete = (wait == UMH_NO_WAIT) ? NULL : &done;  in call_usermodehelper_exec()
575 	sub_info->wait = wait;  in call_usermodehelper_exec()
577 	queue_work(system_unbound_wq, &sub_info->work);  in call_usermodehelper_exec()
587 		if (xchg(&sub_info->complete, NULL))  in call_usermodehelper_exec()
594 	retval = sub_info->retval;  in call_usermodehelper_exec()
596 	call_usermodehelper_freeinfo(sub_info);  in call_usermodehelper_exec()