108 	struct kmod_test_device *test_dev;  member
178 static void kmod_test_done_check(struct kmod_test_device *test_dev,  in kmod_test_done_check()  argument
181 	struct test_config *config = &test_dev->config;  in kmod_test_done_check()
183 	test_dev->done++;  in kmod_test_done_check()
184 	dev_dbg(test_dev->dev, "Done thread count: %u\n", test_dev->done);  in kmod_test_done_check()
186 	if (test_dev->done == config->num_threads) {  in kmod_test_done_check()
187 		dev_info(test_dev->dev, "Done: %u threads have all run now\n",  in kmod_test_done_check()
188 			 test_dev->done);  in kmod_test_done_check()
189 		dev_info(test_dev->dev, "Last thread to run: %u\n", idx);  in kmod_test_done_check()
190 		complete(&test_dev->kthreads_done);  in kmod_test_done_check()
196 	struct kmod_test_device *test_dev = info->test_dev;  in test_kmod_put_module()  local
197 	struct test_config *config = &test_dev->config;  in test_kmod_put_module()
219 	struct kmod_test_device *test_dev = info->test_dev;  in run_request()  local
220 	struct test_config *config = &test_dev->config;  in run_request()
236 	dev_dbg(test_dev->dev, "Ran thread %u\n", info->thread_idx);  in run_request()
240 	mutex_lock(&test_dev->thread_mutex);  in run_request()
242 	kmod_test_done_check(test_dev, info->thread_idx);  in run_request()
243 	mutex_unlock(&test_dev->thread_mutex);  in run_request()
250 	struct kmod_test_device *test_dev = info->test_dev;  in tally_work_test()  local
251 	struct test_config *config = &test_dev->config;  in tally_work_test()
262 		dev_info(test_dev->dev,  in tally_work_test()
270 		dev_info(test_dev->dev, "Sync thread %u fs: %s\n",  in tally_work_test()
290 static void tally_up_work(struct kmod_test_device *test_dev)  in tally_up_work()  argument
292 	struct test_config *config = &test_dev->config;  in tally_up_work()
298 	mutex_lock(&test_dev->thread_mutex);  in tally_up_work()
300 	dev_info(test_dev->dev, "Results:\n");  in tally_up_work()
303 		info = &test_dev->info[idx];  in tally_up_work()
315 	mutex_unlock(&test_dev->thread_mutex);  in tally_up_work()
318 static int try_one_request(struct kmod_test_device *test_dev, unsigned int idx)  in try_one_request()  argument
320 	struct kmod_test_device_info *info = &test_dev->info[idx];  in try_one_request()
323 	mutex_lock(&test_dev->thread_mutex);  in try_one_request()
326 	info->test_dev = test_dev;  in try_one_request()
331 		test_dev->test_is_oom = true;  in try_one_request()
332 		dev_err(test_dev->dev, "Setting up thread %u failed\n", idx);  in try_one_request()
336 		dev_dbg(test_dev->dev, "Kicked off thread %u\n", idx);  in try_one_request()
338 	mutex_unlock(&test_dev->thread_mutex);  in try_one_request()
344 	mutex_unlock(&test_dev->thread_mutex);  in try_one_request()
349 static void test_dev_kmod_stop_tests(struct kmod_test_device *test_dev)  in test_dev_kmod_stop_tests()  argument
351 	struct test_config *config = &test_dev->config;  in test_dev_kmod_stop_tests()
355 	dev_info(test_dev->dev, "Ending request_module() tests\n");  in test_dev_kmod_stop_tests()
357 	mutex_lock(&test_dev->thread_mutex);  in test_dev_kmod_stop_tests()
360 		info = &test_dev->info[i];  in test_dev_kmod_stop_tests()
362 			dev_info(test_dev->dev,  in test_dev_kmod_stop_tests()
378 	mutex_unlock(&test_dev->thread_mutex);  in test_dev_kmod_stop_tests()
387 static int try_requests(struct kmod_test_device *test_dev)  in try_requests()  argument
389 	struct test_config *config = &test_dev->config;  in try_requests()
395 		if (test_dev->test_is_oom) {  in try_requests()
400 		ret = try_one_request(test_dev, idx);  in try_requests()
408 		test_dev->test_is_oom = false;  in try_requests()
409 		dev_info(test_dev->dev,  in try_requests()
411 		wait_for_completion(&test_dev->kthreads_done);  in try_requests()
412 		tally_up_work(test_dev);  in try_requests()
414 		test_dev->test_is_oom = true;  in try_requests()
415 		dev_info(test_dev->dev,  in try_requests()
417 		test_dev_kmod_stop_tests(test_dev);  in try_requests()
424 static int run_test_driver(struct kmod_test_device *test_dev)  in run_test_driver()  argument
426 	struct test_config *config = &test_dev->config;  in run_test_driver()
428 	dev_info(test_dev->dev, "Test case: %s (%u)\n",  in run_test_driver()
431 	dev_info(test_dev->dev, "Test driver to load: %s\n",  in run_test_driver()
433 	dev_info(test_dev->dev, "Number of threads to run: %u\n",  in run_test_driver()
435 	dev_info(test_dev->dev, "Thread IDs will range from 0 - %u\n",  in run_test_driver()
438 	return try_requests(test_dev);  in run_test_driver()
441 static int run_test_fs_type(struct kmod_test_device *test_dev)  in run_test_fs_type()  argument
443 	struct test_config *config = &test_dev->config;  in run_test_fs_type()
445 	dev_info(test_dev->dev, "Test case: %s (%u)\n",  in run_test_fs_type()
448 	dev_info(test_dev->dev, "Test filesystem to load: %s\n",  in run_test_fs_type()
450 	dev_info(test_dev->dev, "Number of threads to run: %u\n",  in run_test_fs_type()
452 	dev_info(test_dev->dev, "Thread IDs will range from 0 - %u\n",  in run_test_fs_type()
455 	return try_requests(test_dev);  in run_test_fs_type()
462 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_show()  local
463 	struct test_config *config = &test_dev->config;  in config_show()
466 	mutex_lock(&test_dev->config_mutex);  in config_show()
497 	mutex_unlock(&test_dev->config_mutex);  in config_show()
507 static int __trigger_config_run(struct kmod_test_device *test_dev)  in __trigger_config_run()  argument
509 	struct test_config *config = &test_dev->config;  in __trigger_config_run()
511 	test_dev->done = 0;  in __trigger_config_run()
515 		return run_test_driver(test_dev);  in __trigger_config_run()
518 			dev_warn(test_dev->dev,  in __trigger_config_run()
522 		return run_test_fs_type(test_dev);  in __trigger_config_run()
524 		dev_warn(test_dev->dev,  in __trigger_config_run()
531 static int trigger_config_run(struct kmod_test_device *test_dev)  in trigger_config_run()  argument
533 	struct test_config *config = &test_dev->config;  in trigger_config_run()
536 	mutex_lock(&test_dev->trigger_mutex);  in trigger_config_run()
537 	mutex_lock(&test_dev->config_mutex);  in trigger_config_run()
539 	ret = __trigger_config_run(test_dev);  in trigger_config_run()
542 	dev_info(test_dev->dev, "General test result: %d\n",  in trigger_config_run()
561 	mutex_unlock(&test_dev->config_mutex);  in trigger_config_run()
562 	mutex_unlock(&test_dev->trigger_mutex);  in trigger_config_run()
572 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in trigger_config_store()  local
575 	if (test_dev->test_is_oom)  in trigger_config_store()
584 	ret = trigger_config_run(test_dev);  in trigger_config_store()
642 static void kmod_config_free(struct kmod_test_device *test_dev)  in kmod_config_free()  argument
646 	if (!test_dev)  in kmod_config_free()
649 	config = &test_dev->config;  in kmod_config_free()
651 	mutex_lock(&test_dev->config_mutex);  in kmod_config_free()
653 	mutex_unlock(&test_dev->config_mutex);  in kmod_config_free()
660 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_driver_store()  local
661 	struct test_config *config = &test_dev->config;  in config_test_driver_store()
664 	mutex_lock(&test_dev->config_mutex);  in config_test_driver_store()
670 	mutex_unlock(&test_dev->config_mutex);  in config_test_driver_store()
695 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_driver_show()  local
696 	struct test_config *config = &test_dev->config;  in config_test_driver_show()
698 	return config_test_show_str(&test_dev->config_mutex, buf,  in config_test_driver_show()
707 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_fs_store()  local
708 	struct test_config *config = &test_dev->config;  in config_test_fs_store()
711 	mutex_lock(&test_dev->config_mutex);  in config_test_fs_store()
717 	mutex_unlock(&test_dev->config_mutex);  in config_test_fs_store()
726 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_fs_show()  local
727 	struct test_config *config = &test_dev->config;  in config_test_fs_show()
729 	return config_test_show_str(&test_dev->config_mutex, buf,  in config_test_fs_show()
734 static int trigger_config_run_type(struct kmod_test_device *test_dev,  in trigger_config_run_type()  argument
737 	struct test_config *config = &test_dev->config;  in trigger_config_run_type()
739 	mutex_lock(&test_dev->config_mutex);  in trigger_config_run_type()
746 			mutex_unlock(&test_dev->config_mutex);  in trigger_config_run_type()
751 		mutex_unlock(&test_dev->config_mutex);  in trigger_config_run_type()
757 	mutex_unlock(&test_dev->config_mutex);  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()
826 	ret = kmod_config_sync_info(test_dev);  in __kmod_config_init()
830 	test_dev->test_is_oom = false;  in __kmod_config_init()
835 	test_dev->test_is_oom = true;  in __kmod_config_init()
836 	WARN_ON(test_dev->test_is_oom);  in __kmod_config_init()
847 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in reset_store()  local
850 	mutex_lock(&test_dev->trigger_mutex);  in reset_store()
851 	mutex_lock(&test_dev->config_mutex);  in reset_store()
853 	ret = __kmod_config_init(test_dev);  in reset_store()
865 	mutex_unlock(&test_dev->config_mutex);  in reset_store()
866 	mutex_unlock(&test_dev->trigger_mutex);  in reset_store()
872 static int test_dev_config_update_uint_sync(struct kmod_test_device *test_dev,  in test_dev_config_update_uint_sync()  argument
875 					    int (*test_sync)(struct kmod_test_device *test_dev))  in test_dev_config_update_uint_sync()  argument
885 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_update_uint_sync()
890 	ret = test_sync(test_dev);  in test_dev_config_update_uint_sync()
894 		ret = test_sync(test_dev);  in test_dev_config_update_uint_sync()
897 		mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_uint_sync()
901 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_uint_sync()
906 static int test_dev_config_update_uint_range(struct kmod_test_device *test_dev,  in test_dev_config_update_uint_range()  argument
922 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_update_uint_range()
924 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_uint_range()
930 static int test_dev_config_update_int(struct kmod_test_device *test_dev,  in test_dev_config_update_int()  argument
941 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_update_int()
943 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_update_int()
948 static ssize_t test_dev_config_show_int(struct kmod_test_device *test_dev,  in test_dev_config_show_int()  argument
954 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_show_int()
956 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_show_int()
961 static ssize_t test_dev_config_show_uint(struct kmod_test_device *test_dev,  in test_dev_config_show_uint()  argument
967 	mutex_lock(&test_dev->config_mutex);  in test_dev_config_show_uint()
969 	mutex_unlock(&test_dev->config_mutex);  in test_dev_config_show_uint()
978 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in test_result_store()  local
979 	struct test_config *config = &test_dev->config;  in test_result_store()
981 	return test_dev_config_update_int(test_dev, buf, count,  in test_result_store()
989 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_num_threads_store()  local
990 	struct test_config *config = &test_dev->config;  in config_num_threads_store()
992 	return test_dev_config_update_uint_sync(test_dev, buf, count,  in config_num_threads_store()
1001 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_num_threads_show()  local
1002 	struct test_config *config = &test_dev->config;  in config_num_threads_show()
1004 	return test_dev_config_show_int(test_dev, buf, config->num_threads);  in config_num_threads_show()
1012 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_case_store()  local
1013 	struct test_config *config = &test_dev->config;  in config_test_case_store()
1015 	return test_dev_config_update_uint_range(test_dev, buf, count,  in config_test_case_store()
1025 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in config_test_case_show()  local
1026 	struct test_config *config = &test_dev->config;  in config_test_case_show()
1028 	return test_dev_config_show_uint(test_dev, buf, config->test_case);  in config_test_case_show()
1036 	struct kmod_test_device *test_dev = dev_to_test_dev(dev);  in test_result_show()  local
1037 	struct test_config *config = &test_dev->config;  in test_result_show()
1039 	return test_dev_config_show_int(test_dev, buf, config->test_result);  in test_result_show()
1059 ATTRIBUTE_GROUPS(test_dev);
1061 static int kmod_config_init(struct kmod_test_device *test_dev)  in kmod_config_init()  argument
1065 	mutex_lock(&test_dev->config_mutex);  in kmod_config_init()
1066 	ret = __kmod_config_init(test_dev);  in kmod_config_init()
1067 	mutex_unlock(&test_dev->config_mutex);  in kmod_config_init()
1075 	struct kmod_test_device *test_dev;  in alloc_test_dev_kmod()  local
1078 	test_dev = vzalloc(sizeof(struct kmod_test_device));  in alloc_test_dev_kmod()
1079 	if (!test_dev)  in alloc_test_dev_kmod()
1082 	mutex_init(&test_dev->config_mutex);  in alloc_test_dev_kmod()
1083 	mutex_init(&test_dev->trigger_mutex);  in alloc_test_dev_kmod()
1084 	mutex_init(&test_dev->thread_mutex);  in alloc_test_dev_kmod()
1086 	init_completion(&test_dev->kthreads_done);  in alloc_test_dev_kmod()
1088 	ret = kmod_config_init(test_dev);  in alloc_test_dev_kmod()
1094 	test_dev->dev_idx = idx;  in alloc_test_dev_kmod()
1095 	misc_dev = &test_dev->misc_dev;  in alloc_test_dev_kmod()
1105 	return test_dev;  in alloc_test_dev_kmod()
1108 	free_test_dev_info(test_dev);  in alloc_test_dev_kmod()
1109 	kmod_config_free(test_dev);  in alloc_test_dev_kmod()
1111 	vfree(test_dev);  in alloc_test_dev_kmod()
1112 	test_dev = NULL;  in alloc_test_dev_kmod()
1117 static void free_test_dev_kmod(struct kmod_test_device *test_dev)  in free_test_dev_kmod()  argument
1119 	if (test_dev) {  in free_test_dev_kmod()
1120 		kfree_const(test_dev->misc_dev.name);  in free_test_dev_kmod()
1121 		test_dev->misc_dev.name = NULL;  in free_test_dev_kmod()
1122 		free_test_dev_info(test_dev);  in free_test_dev_kmod()
1123 		kmod_config_free(test_dev);  in free_test_dev_kmod()
1124 		vfree(test_dev);  in free_test_dev_kmod()
1125 		test_dev = NULL;  in free_test_dev_kmod()
1131 	struct kmod_test_device *test_dev = NULL;  in register_test_dev_kmod()  local
1142 	test_dev = alloc_test_dev_kmod(num_test_devs);  in register_test_dev_kmod()
1143 	if (!test_dev)  in register_test_dev_kmod()
1146 	ret = misc_register(&test_dev->misc_dev);  in register_test_dev_kmod()
1149 		free_test_dev_kmod(test_dev);  in register_test_dev_kmod()
1150 		test_dev = NULL;  in register_test_dev_kmod()
1154 	test_dev->dev = test_dev->misc_dev.this_device;  in register_test_dev_kmod()
1155 	list_add_tail(&test_dev->list, &reg_test_devs);  in register_test_dev_kmod()
1156 	dev_info(test_dev->dev, "interface ready\n");  in register_test_dev_kmod()
1163 	return test_dev;  in register_test_dev_kmod()
1169 	struct kmod_test_device *test_dev;  in test_kmod_init()  local
1172 	test_dev = register_test_dev_kmod();  in test_kmod_init()
1173 	if (!test_dev) {  in test_kmod_init()
1186 		ret = trigger_config_run_type(test_dev, TEST_KMOD_DRIVER);  in test_kmod_init()
1190 		ret = trigger_config_run_type(test_dev, TEST_KMOD_FS_TYPE);  in test_kmod_init()
1200 void unregister_test_dev_kmod(struct kmod_test_device *test_dev)  in unregister_test_dev_kmod()  argument
1202 	mutex_lock(&test_dev->trigger_mutex);  in unregister_test_dev_kmod()
1203 	mutex_lock(&test_dev->config_mutex);  in unregister_test_dev_kmod()
1205 	test_dev_kmod_stop_tests(test_dev);  in unregister_test_dev_kmod()
1207 	dev_info(test_dev->dev, "removing interface\n");  in unregister_test_dev_kmod()
1208 	misc_deregister(&test_dev->misc_dev);  in unregister_test_dev_kmod()
1210 	mutex_unlock(&test_dev->config_mutex);  in unregister_test_dev_kmod()
1211 	mutex_unlock(&test_dev->trigger_mutex);  in unregister_test_dev_kmod()
1213 	free_test_dev_kmod(test_dev);  in unregister_test_dev_kmod()
1218 	struct kmod_test_device *test_dev, *tmp;  in test_kmod_exit()  local
1221 	list_for_each_entry_safe(test_dev, tmp, &reg_test_devs, list) {  in test_kmod_exit()
1222 		list_del(&test_dev->list);  in test_kmod_exit()
1223 		unregister_test_dev_kmod(test_dev);  in test_kmod_exit()