75 	char	uuid[BTRFS_UUID_SIZE];	/* in */  member
421 int btrfs_is_empty_uuid(u8 *uuid)  in btrfs_is_empty_uuid()  argument
426 		if (uuid[i])  in btrfs_is_empty_uuid()
533 	memcpy(root_item.uuid, new_uuid.b, BTRFS_UUID_SIZE);  in create_subvol()
602 				  root_item.uuid, BTRFS_UUID_KEY_SUBVOL,  in create_subvol()
2500 				  dest->root_item.uuid, BTRFS_UUID_KEY_SUBVOL,  in btrfs_ioctl_snap_destroy()
2750 	if (!btrfs_is_empty_uuid(di_args->uuid))  in btrfs_ioctl_dev_info()
2751 		s_uuid = di_args->uuid;  in btrfs_ioctl_dev_info()
2764 	memcpy(di_args->uuid, dev->uuid, sizeof(di_args->uuid));  in btrfs_ioctl_dev_info()
5172 	received_uuid_changed = memcmp(root_item->received_uuid, sa->uuid,  in _btrfs_ioctl_set_received_subvol()
5180 	memcpy(root_item->received_uuid, sa->uuid, BTRFS_UUID_SIZE);  in _btrfs_ioctl_set_received_subvol()
5194 	if (received_uuid_changed && !btrfs_is_empty_uuid(sa->uuid)) {  in _btrfs_ioctl_set_received_subvol()
5196 					  sa->uuid,  in _btrfs_ioctl_set_received_subvol()
5237 	memcpy(args64->uuid, args32->uuid, BTRFS_UUID_SIZE);  in btrfs_ioctl_set_received_subvol_32()
5250 	memcpy(args32->uuid, args64->uuid, BTRFS_UUID_SIZE);  in btrfs_ioctl_set_received_subvol_32()