102 	struct kmod_test_device *test_dev;  member
172 static void kmod_test_done_check(struct kmod_test_device *test_dev,  in kmod_test_done_check()  argument
175 	struct test_config *config = &test_dev->config;  in kmod_test_done_check()
177 	test_dev->done++;  in kmod_test_done_check()
178 	dev_dbg(test_dev->dev, "Done thread count: %u\n", test_dev->done);  in kmod_test_done_check()
180 	if (test_dev->done == config->num_threads) {  in kmod_test_done_check()
181 		dev_info(test_dev->dev, "Done: %u threads have all run now\n",  in kmod_test_done_check()
182 			 test_dev->done);  in kmod_test_done_check()
183 		dev_info(test_dev->dev, "Last thread to run: %u\n", idx);  in kmod_test_done_check()
184 		complete(&test_dev->kthreads_done);  in kmod_test_done_check()
190 	struct kmod_test_device *test_dev = info->test_dev;  in test_kmod_put_module()  local
191 	struct test_config *config = &test_dev->config;  in test_kmod_put_module()
213 	struct kmod_test_device *test_dev = info->test_dev;  in run_request()  local
214 	struct test_config *config = &test_dev->config;  in run_request()
230 	dev_dbg(test_dev->dev, "Ran thread %u\n", info->thread_idx);  in run_request()
234 	mutex_lock(&test_dev->thread_mutex);  in run_request()
236 	kmod_test_done_check(test_dev, info->thread_idx);  in run_request()
237 	mutex_unlock(&test_dev->thread_mutex);  in run_request()
244 	struct kmod_test_device *test_dev = info->test_dev;  in tally_work_test()  local
245 	struct test_config *config = &test_dev->config;  in tally_work_test()
256 		dev_info(test_dev->dev,  in tally_work_test()
264 		dev_info(test_dev->dev, "Sync thread %u fs: %s\n",  in tally_work_test()
284 static void tally_up_work(struct kmod_test_device *test_dev)  in tally_up_work()  argument
286 	struct test_config *config = &test_dev->config;  in tally_up_work()
292 	mutex_lock(&test_dev->thread_mutex);  in tally_up_work()
294 	dev_info(test_dev->dev, "Results:\n");  in tally_up_work()
297 		info = &test_dev->info[idx];  in tally_up_work()
309 	mutex_unlock(&test_dev->thread_mutex);  in tally_up_work()
312 static int try_one_request(struct kmod_test_device *test_dev, unsigned int idx)  in try_one_request()  argument
314 	struct kmod_test_device_info *info = &test_dev->info[idx];  in try_one_request()
317 	mutex_lock(&test_dev->thread_mutex);  in try_one_request()
320 	info->test_dev = test_dev;  in try_one_request()
325 		test_dev->test_is_oom = true;  in try_one_request()
326 		dev_err(test_dev->dev, "Setting up thread %u failed\n", idx);  in try_one_request()
330 		dev_dbg(test_dev->dev, "Kicked off thread %u\n", idx);  in try_one_request()
332 	mutex_unlock(&test_dev->thread_mutex);  in try_one_request()
338 	mutex_unlock(&test_dev->thread_mutex);  in try_one_request()
343 static void test_dev_kmod_stop_tests(struct kmod_test_device *test_dev)  in test_dev_kmod_stop_tests()  argument
345 	struct test_config *config = &test_dev->config;  in test_dev_kmod_stop_tests()
349 	dev_info(test_dev->dev, "Ending request_module() tests\n");  in test_dev_kmod_stop_tests()
351 	mutex_lock(&test_dev->thread_mutex);  in test_dev_kmod_stop_tests()
354 		info = &test_dev->info[i];  in test_dev_kmod_stop_tests()
356 			dev_info(test_dev->dev,  in test_dev_kmod_stop_tests()
372 	mutex_unlock(&test_dev->thread_mutex);  in test_dev_kmod_stop_tests()
381 static int try_requests(struct kmod_test_device *test_dev)  in try_requests()  argument
383 	struct test_config *config = &test_dev->config;  in try_requests()
389 		if (test_dev->test_is_oom) {  in try_requests()
394 		ret = try_one_request(test_dev, idx);  in try_requests()
402 		test_dev->test_is_oom = false;  in try_requests()
403 		dev_info(test_dev->dev,  in try_requests()
405 		wait_for_completion(&test_dev->kthreads_done);  in try_requests()
406 		tally_up_work(test_dev);  in try_requests()
408 		test_dev->test_is_oom = true;  in try_requests()
409 		dev_info(test_dev->dev,  in try_requests()
411 		test_dev_kmod_stop_tests(test_dev);  in try_requests()
418 static int run_test_driver(struct kmod_test_device *test_dev)  in run_test_driver()  argument
420 	struct test_config *config = &test_dev->config;  in run_test_driver()
422 	dev_info(test_dev->dev, "Test case: %s (%u)\n",  in run_test_driver()
425 	dev_info(test_dev->dev, "Test driver to load: %s\n",  in run_test_driver()
427 	dev_info(test_dev->dev, "Number of threads to run: %u\n",  in run_test_driver()
429 	dev_info(test_dev->dev, "Thread IDs will range from 0 - %u\n",  in run_test_driver()
432 	return try_requests(test_dev);  in run_test_driver()
435 static int run_test_fs_type(struct kmod_test_device *test_dev)  in run_test_fs_type()  argument
437 	struct test_config *config = &test_dev->config;  in run_test_fs_type()
439 	dev_info(test_dev->dev, "Test case: %s (%u)\n",  in run_test_fs_type()
442 	dev_info(test_dev->dev, "Test filesystem to load: %s\n",  in run_test_fs_type()
444 	dev_info(test_dev->dev, "Number of threads to run: %u\n",  in run_test_fs_type()
446 	dev_info(test_dev->dev, "Thread IDs will range from 0 - %u\n",  in run_test_fs_type()
449 	return try_requests(test_dev);  in run_test_fs_type()
456 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_show()  local
457 	struct test_config *config = &test_dev->config;  in config_show()
460 	mutex_lock(&test_dev->config_mutex);  in config_show()
491 	mutex_unlock(&test_dev->config_mutex);  in config_show()
501 static int __trigger_config_run(struct kmod_test_device *test_dev)  in __trigger_config_run()  argument
503 	struct test_config *config = &test_dev->config;  in __trigger_config_run()
505 	test_dev->done = 0;  in __trigger_config_run()
509 		return run_test_driver(test_dev);  in __trigger_config_run()
511 		return run_test_fs_type(test_dev);  in __trigger_config_run()
513 		dev_warn(test_dev->dev,  in __trigger_config_run()
520 static int trigger_config_run(struct kmod_test_device *test_dev)  in trigger_config_run()  argument
522 	struct test_config *config = &test_dev->config;  in trigger_config_run()
525 	mutex_lock(&test_dev->trigger_mutex);  in trigger_config_run()
526 	mutex_lock(&test_dev->config_mutex);  in trigger_config_run()
528 	ret = __trigger_config_run(test_dev);  in trigger_config_run()
531 	dev_info(test_dev->dev, "General test result: %d\n",  in trigger_config_run()
550 	mutex_unlock(&test_dev->config_mutex);  in trigger_config_run()
551 	mutex_unlock(&test_dev->trigger_mutex);  in trigger_config_run()
561 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in trigger_config_store()  local
564 	if (test_dev->test_is_oom)  in trigger_config_store()
573 	ret = trigger_config_run(test_dev);  in trigger_config_store()
631 static void kmod_config_free(struct kmod_test_device *test_dev)  in kmod_config_free()  argument
635 	if (!test_dev)  in kmod_config_free()
638 	config = &test_dev->config;  in kmod_config_free()
640 	mutex_lock(&test_dev->config_mutex);  in kmod_config_free()
642 	mutex_unlock(&test_dev->config_mutex);  in kmod_config_free()
649 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_driver_store()  local
650 	struct test_config *config = &test_dev->config;  in config_test_driver_store()
653 	mutex_lock(&test_dev->config_mutex);  in config_test_driver_store()
659 	mutex_unlock(&test_dev->config_mutex);  in config_test_driver_store()
684 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_driver_show()  local
685 	struct test_config *config = &test_dev->config;  in config_test_driver_show()
687 	return config_test_show_str(&test_dev->config_mutex, buf,  in config_test_driver_show()
696 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_fs_store()  local
697 	struct test_config *config = &test_dev->config;  in config_test_fs_store()
700 	mutex_lock(&test_dev->config_mutex);  in config_test_fs_store()
706 	mutex_unlock(&test_dev->config_mutex);  in config_test_fs_store()
715 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_fs_show()  local
716 	struct test_config *config = &test_dev->config;  in config_test_fs_show()
718 	return config_test_show_str(&test_dev->config_mutex, buf,  in config_test_fs_show()
723 static int trigger_config_run_type(struct kmod_test_device *test_dev,  in trigger_config_run_type()  argument
728 	struct test_config *config = &test_dev->config;  in trigger_config_run_type()
730 	mutex_lock(&test_dev->config_mutex);  in trigger_config_run_type()
746 		mutex_unlock(&test_dev->config_mutex);  in trigger_config_run_type()
752 	mutex_unlock(&test_dev->config_mutex);  in trigger_config_run_type()
755 		test_dev->test_is_oom = true;  in trigger_config_run_type()
759 	test_dev->test_is_oom = false;  in trigger_config_run_type()
761 	return trigger_config_run(test_dev);  in trigger_config_run_type()
764 static void free_test_dev_info(struct kmod_test_device *test_dev)  in free_test_dev_info()  argument
766 	vfree(test_dev->info);  in free_test_dev_info()
767 	test_dev->info = NULL;  in free_test_dev_info()
770 static int kmod_config_sync_info(struct kmod_test_device *test_dev)  in kmod_config_sync_info()  argument
772 	struct test_config *config = &test_dev->config;  in kmod_config_sync_info()
774 	free_test_dev_info(test_dev);  in kmod_config_sync_info()
775 	test_dev->info =  in kmod_config_sync_info()
778 	if (!test_dev->info)  in kmod_config_sync_info()
800 static int __kmod_config_init(struct kmod_test_device *test_dev)  in __kmod_config_init()  argument
802 	struct test_config *config = &test_dev->config;  in __kmod_config_init()
821 	ret = kmod_config_sync_info(test_dev);  in __kmod_config_init()
825 	test_dev->test_is_oom = false;  in __kmod_config_init()
830 	test_dev->test_is_oom = true;  in __kmod_config_init()
831 	WARN_ON(test_dev->test_is_oom);  in __kmod_config_init()
842 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in reset_store()  local
845 	mutex_lock(&test_dev->trigger_mutex);  in reset_store()
846 	mutex_lock(&test_dev->config_mutex);  in reset_store()
848 	ret = __kmod_config_init(test_dev);  in reset_store()
860 	mutex_unlock(&test_dev->config_mutex);  in reset_store()
861 	mutex_unlock(&test_dev->trigger_mutex);  in reset_store()
867 static int test_dev_config_update_uint_sync(struct kmod_test_device *test_dev,  in test_dev_config_update_uint_sync()  argument
870 					    int (*test_sync)(struct kmod_test_device *test_dev))  in test_dev_config_update_uint_sync()  argument
880 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_update_uint_sync()
885 	ret = test_sync(test_dev);  in test_dev_config_update_uint_sync()
889 		ret = test_sync(test_dev);  in test_dev_config_update_uint_sync()
892 		mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_uint_sync()
896 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_uint_sync()
901 static int test_dev_config_update_uint_range(struct kmod_test_device *test_dev,  in test_dev_config_update_uint_range()  argument
917 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_update_uint_range()
919 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_uint_range()
925 static int test_dev_config_update_int(struct kmod_test_device *test_dev,  in test_dev_config_update_int()  argument
936 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_update_int()
938 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_int()
943 static ssize_t test_dev_config_show_int(struct kmod_test_device *test_dev,  in test_dev_config_show_int()  argument
949 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_show_int()
951 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_show_int()
956 static ssize_t test_dev_config_show_uint(struct kmod_test_device *test_dev,  in test_dev_config_show_uint()  argument
962 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_show_uint()
964 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_show_uint()
973 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in test_result_store()  local
974 	struct test_config *config = &test_dev->config;  in test_result_store()
976 	return test_dev_config_update_int(test_dev, buf, count,  in test_result_store()
984 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_num_threads_store()  local
985 	struct test_config *config = &test_dev->config;  in config_num_threads_store()
987 	return test_dev_config_update_uint_sync(test_dev, buf, count,  in config_num_threads_store()
996 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_num_threads_show()  local
997 	struct test_config *config = &test_dev->config;  in config_num_threads_show()
999 	return test_dev_config_show_int(test_dev, buf, config->num_threads);  in config_num_threads_show()
1007 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_case_store()  local
1008 	struct test_config *config = &test_dev->config;  in config_test_case_store()
1010 	return test_dev_config_update_uint_range(test_dev, buf, count,  in config_test_case_store()
1020 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_case_show()  local
1021 	struct test_config *config = &test_dev->config;  in config_test_case_show()
1023 	return test_dev_config_show_uint(test_dev, buf, config->test_case);  in config_test_case_show()
1031 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in test_result_show()  local
1032 	struct test_config *config = &test_dev->config;  in test_result_show()
1034 	return test_dev_config_show_int(test_dev, buf, config->test_result);  in test_result_show()
1054 ATTRIBUTE_GROUPS(test_dev);
1056 static int kmod_config_init(struct kmod_test_device *test_dev)  in kmod_config_init()  argument
1060 	mutex_lock(&test_dev->config_mutex);  in kmod_config_init()
1061 	ret = __kmod_config_init(test_dev);  in kmod_config_init()
1062 	mutex_unlock(&test_dev->config_mutex);  in kmod_config_init()
1070 	struct kmod_test_device *test_dev;  in alloc_test_dev_kmod()  local
1073 	test_dev = vzalloc(sizeof(struct kmod_test_device));  in alloc_test_dev_kmod()
1074 	if (!test_dev)  in alloc_test_dev_kmod()
1077 	mutex_init(&test_dev->config_mutex);  in alloc_test_dev_kmod()
1078 	mutex_init(&test_dev->trigger_mutex);  in alloc_test_dev_kmod()
1079 	mutex_init(&test_dev->thread_mutex);  in alloc_test_dev_kmod()
1081 	init_completion(&test_dev->kthreads_done);  in alloc_test_dev_kmod()
1083 	ret = kmod_config_init(test_dev);  in alloc_test_dev_kmod()
1089 	test_dev->dev_idx = idx;  in alloc_test_dev_kmod()
1090 	misc_dev = &test_dev->misc_dev;  in alloc_test_dev_kmod()
1100 	return test_dev;  in alloc_test_dev_kmod()
1103 	free_test_dev_info(test_dev);  in alloc_test_dev_kmod()
1104 	kmod_config_free(test_dev);  in alloc_test_dev_kmod()
1106 	vfree(test_dev);  in alloc_test_dev_kmod()
1107 	test_dev = NULL;  in alloc_test_dev_kmod()
1112 static void free_test_dev_kmod(struct kmod_test_device *test_dev)  in free_test_dev_kmod()  argument
1114 	if (test_dev) {  in free_test_dev_kmod()
1115 		kfree_const(test_dev->misc_dev.name);  in free_test_dev_kmod()
1116 		test_dev->misc_dev.name = NULL;  in free_test_dev_kmod()
1117 		free_test_dev_info(test_dev);  in free_test_dev_kmod()
1118 		kmod_config_free(test_dev);  in free_test_dev_kmod()
1119 		vfree(test_dev);  in free_test_dev_kmod()
1120 		test_dev = NULL;  in free_test_dev_kmod()
1126 	struct kmod_test_device *test_dev = NULL;  in register_test_dev_kmod()  local
1137 	test_dev = alloc_test_dev_kmod(num_test_devs);  in register_test_dev_kmod()
1138 	if (!test_dev)  in register_test_dev_kmod()
1141 	ret = misc_register(&test_dev->misc_dev);  in register_test_dev_kmod()
1144 		free_test_dev_kmod(test_dev);  in register_test_dev_kmod()
1145 		test_dev = NULL;  in register_test_dev_kmod()
1149 	test_dev->dev = test_dev->misc_dev.this_device;  in register_test_dev_kmod()
1150 	list_add_tail(&test_dev->list, &reg_test_devs);  in register_test_dev_kmod()
1151 	dev_info(test_dev->dev, "interface ready\n");  in register_test_dev_kmod()
1158 	return test_dev;  in register_test_dev_kmod()
1164 	struct kmod_test_device *test_dev;  in test_kmod_init()  local
1167 	test_dev = register_test_dev_kmod();  in test_kmod_init()
1168 	if (!test_dev) {  in test_kmod_init()
1181 		ret = trigger_config_run_type(test_dev,  in test_kmod_init()
1185 		ret = trigger_config_run_type(test_dev,  in test_kmod_init()
1196 void unregister_test_dev_kmod(struct kmod_test_device *test_dev)  in unregister_test_dev_kmod()  argument
1198 	mutex_lock(&test_dev->trigger_mutex);  in unregister_test_dev_kmod()
1199 	mutex_lock(&test_dev->config_mutex);  in unregister_test_dev_kmod()
1201 	test_dev_kmod_stop_tests(test_dev);  in unregister_test_dev_kmod()
1203 	dev_info(test_dev->dev, "removing interface\n");  in unregister_test_dev_kmod()
1204 	misc_deregister(&test_dev->misc_dev);  in unregister_test_dev_kmod()
1206 	mutex_unlock(&test_dev->config_mutex);  in unregister_test_dev_kmod()
1207 	mutex_unlock(&test_dev->trigger_mutex);  in unregister_test_dev_kmod()
1209 	free_test_dev_kmod(test_dev);  in unregister_test_dev_kmod()
1214 	struct kmod_test_device *test_dev, *tmp;  in test_kmod_exit()  local
1217 	list_for_each_entry_safe(test_dev, tmp, &reg_test_devs, list) {  in test_kmod_exit()
1218 		list_del(&test_dev->list);  in test_kmod_exit()
1219 		unregister_test_dev_kmod(test_dev);  in test_kmod_exit()