2708 	struct btrfs_ioctl_fs_info_args *fi_args;  in btrfs_ioctl_fs_info()  local
2713 	fi_args = kzalloc(sizeof(*fi_args), GFP_KERNEL);  in btrfs_ioctl_fs_info()
2714 	if (!fi_args)  in btrfs_ioctl_fs_info()
2718 	fi_args->num_devices = fs_devices->num_devices;  in btrfs_ioctl_fs_info()
2719 	memcpy(&fi_args->fsid, root->fs_info->fsid, sizeof(fi_args->fsid));  in btrfs_ioctl_fs_info()
2722 		if (device->devid > fi_args->max_id)  in btrfs_ioctl_fs_info()
2723 			fi_args->max_id = device->devid;  in btrfs_ioctl_fs_info()
2727 	fi_args->nodesize = root->fs_info->super_copy->nodesize;  in btrfs_ioctl_fs_info()
2728 	fi_args->sectorsize = root->fs_info->super_copy->sectorsize;  in btrfs_ioctl_fs_info()
2729 	fi_args->clone_alignment = root->fs_info->super_copy->sectorsize;  in btrfs_ioctl_fs_info()
2731 	if (copy_to_user(arg, fi_args, sizeof(*fi_args)))  in btrfs_ioctl_fs_info()
2734 	kfree(fi_args);  in btrfs_ioctl_fs_info()