49     size_t param_size;  member
467 typedef int (*ioctl_fn)(struct file *filp, struct dm_ioctl *param, size_t param_size);
469 static int remove_all(struct file *filp, struct dm_ioctl *param, size_t param_size)  in remove_all()  argument
493 static void *get_result_buffer(struct dm_ioctl *param, size_t param_size,  in get_result_buffer()  argument
498 	if (param->data_start < param_size)  in get_result_buffer()
499 		*len = param_size - param->data_start;  in get_result_buffer()
506 static int list_devices(struct file *filp, struct dm_ioctl *param, size_t param_size)  in list_devices()  argument
531 	nl = orig_nl = get_result_buffer(param, param_size, &len);  in list_devices()
604 static int __list_versions(struct dm_ioctl *param, size_t param_size, const char *name)  in __list_versions()  argument
629 	vers = get_result_buffer(param, param_size, &len);  in __list_versions()
636 	iter_info.param_size = param_size;  in __list_versions()
657 static int list_versions(struct file *filp, struct dm_ioctl *param, size_t param_size)  in list_versions()  argument
659 	return __list_versions(param, param_size, NULL);  in list_versions()
662 static int get_target_version(struct file *filp, struct dm_ioctl *param, size_t param_size)  in get_target_version()  argument
664 	return __list_versions(param, param_size, param->name);  in get_target_version()
771 static int dev_create(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_create()  argument
863 static int dev_remove(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_remove()  argument
928 static int dev_rename(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_rename()  argument
936 	    invalid_str(new_data, (void *) param + param_size) || !*new_data ||  in dev_rename()
958 static int dev_set_geometry(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_set_geometry()  argument
972 	    invalid_str(geostr, (void *) param + param_size)) {  in dev_set_geometry()
1107 static int dev_suspend(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_suspend()  argument
1119 static int dev_status(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_status()  argument
1137 			    struct dm_ioctl *param, size_t param_size)  in retrieve_status()  argument
1146 	outptr = outbuf = get_result_buffer(param, param_size, &len);  in retrieve_status()
1210 static int dev_wait(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_wait()  argument
1238 		retrieve_status(table, param, param_size);  in dev_wait()
1251 static int dev_arm_poll(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_arm_poll()  argument
1283 			  struct dm_ioctl *param, size_t param_size)  in populate_table()  argument
1289 	void *end = (void *) param + param_size;  in populate_table()
1329 static int table_load(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_load()  argument
1347 	r = populate_table(t, param, param_size);  in table_load()
1417 static int table_clear(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_clear()  argument
1455 			  struct dm_ioctl *param, size_t param_size)  in retrieve_deps()  argument
1463 	deps = get_result_buffer(param, param_size, &len);  in retrieve_deps()
1491 static int table_deps(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_deps()  argument
1505 		retrieve_deps(table, param, param_size);  in table_deps()
1517 static int table_status(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_status()  argument
1531 		retrieve_status(table, param, param_size);  in table_status()
1572 static int target_message(struct file *filp, struct dm_ioctl *param, size_t param_size)  in target_message()  argument
1581 	char *result = get_result_buffer(param, param_size, &maxlen);  in target_message()
1589 	    invalid_str(tmsg->message, (void *) param + param_size)) {  in target_message()
1739 static void free_params(struct dm_ioctl *param, size_t param_size, int param_flags)  in free_params()  argument
1742 		memset(param, 0, param_size);  in free_params()