1473 	u64 new_size;  in btrfs_ioctl_resize()  local
1541 		new_size = device->bdev->bd_inode->i_size;  in btrfs_ioctl_resize()
1550 		new_size = memparse(sizestr, &retptr);  in btrfs_ioctl_resize()
1551 		if (*retptr != '\0' || new_size == 0) {  in btrfs_ioctl_resize()
1565 		if (new_size > old_size) {  in btrfs_ioctl_resize()
1569 		new_size = old_size - new_size;  in btrfs_ioctl_resize()
1571 		if (new_size > ULLONG_MAX - old_size) {  in btrfs_ioctl_resize()
1575 		new_size = old_size + new_size;  in btrfs_ioctl_resize()
1578 	if (new_size < 256 * 1024 * 1024) {  in btrfs_ioctl_resize()
1582 	if (new_size > device->bdev->bd_inode->i_size) {  in btrfs_ioctl_resize()
1587 	new_size = div_u64(new_size, root->sectorsize);  in btrfs_ioctl_resize()
1588 	new_size *= root->sectorsize;  in btrfs_ioctl_resize()
1591 		      rcu_str_deref(device->name), new_size);  in btrfs_ioctl_resize()
1593 	if (new_size > old_size) {  in btrfs_ioctl_resize()
1599 		ret = btrfs_grow_device(trans, device, new_size);  in btrfs_ioctl_resize()
1601 	} else if (new_size < old_size) {  in btrfs_ioctl_resize()
1602 		ret = btrfs_shrink_device(device, new_size);  in btrfs_ioctl_resize()