53     size_t param_size;  member
509 typedef int (*ioctl_fn)(struct file *filp, struct dm_ioctl *param, size_t param_size);
511 static int remove_all(struct file *filp, struct dm_ioctl *param, size_t param_size)  in remove_all()  argument
535 static void *get_result_buffer(struct dm_ioctl *param, size_t param_size,  in get_result_buffer()  argument
540 	if (param->data_start < param_size)  in get_result_buffer()
541 		*len = param_size - param->data_start;  in get_result_buffer()
572 static int list_devices(struct file *filp, struct dm_ioctl *param, size_t param_size)  in list_devices()  argument
600 	nl = orig_nl = get_result_buffer(param, param_size, &len);  in list_devices()
686 static int __list_versions(struct dm_ioctl *param, size_t param_size, const char *name)  in __list_versions()  argument
711 	vers = get_result_buffer(param, param_size, &len);  in __list_versions()
718 	iter_info.param_size = param_size;  in __list_versions()
739 static int list_versions(struct file *filp, struct dm_ioctl *param, size_t param_size)  in list_versions()  argument
741 	return __list_versions(param, param_size, NULL);  in list_versions()
744 static int get_target_version(struct file *filp, struct dm_ioctl *param, size_t param_size)  in get_target_version()  argument
746 	return __list_versions(param, param_size, param->name);  in get_target_version()
853 static int dev_create(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_create()  argument
945 static int dev_remove(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_remove()  argument
1012 static int dev_rename(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_rename()  argument
1020 	    invalid_str(new_data, (void *) param + param_size) || !*new_data ||  in dev_rename()
1042 static int dev_set_geometry(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_set_geometry()  argument
1056 	    invalid_str(geostr, (void *) param + param_size)) {  in dev_set_geometry()
1195 static int dev_suspend(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_suspend()  argument
1207 static int dev_status(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_status()  argument
1225 			    struct dm_ioctl *param, size_t param_size)  in retrieve_status()  argument
1234 	outptr = outbuf = get_result_buffer(param, param_size, &len);  in retrieve_status()
1300 static int dev_wait(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_wait()  argument
1328 		retrieve_status(table, param, param_size);  in dev_wait()
1341 static int dev_arm_poll(struct file *filp, struct dm_ioctl *param, size_t param_size)  in dev_arm_poll()  argument
1373 			  struct dm_ioctl *param, size_t param_size)  in populate_table()  argument
1379 	void *end = (void *) param + param_size;  in populate_table()
1419 static int table_load(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_load()  argument
1437 	r = populate_table(t, param, param_size);  in table_load()
1506 static int table_clear(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_clear()  argument
1547 			  struct dm_ioctl *param, size_t param_size)  in retrieve_deps()  argument
1555 	deps = get_result_buffer(param, param_size, &len);  in retrieve_deps()
1583 static int table_deps(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_deps()  argument
1597 		retrieve_deps(table, param, param_size);  in table_deps()
1609 static int table_status(struct file *filp, struct dm_ioctl *param, size_t param_size)  in table_status()  argument
1623 		retrieve_status(table, param, param_size);  in table_status()
1664 static int target_message(struct file *filp, struct dm_ioctl *param, size_t param_size)  in target_message()  argument
1673 	char *result = get_result_buffer(param, param_size, &maxlen);  in target_message()
1681 	    invalid_str(tmsg->message, (void *) param + param_size)) {  in target_message()
1832 static void free_params(struct dm_ioctl *param, size_t param_size, int param_flags)  in free_params()  argument
1835 		memset(param, 0, param_size);  in free_params()