NTSTATUS
NpFsdQueryVolumeInformation(
  IN  PNPFS_DEVICE_OBJECT NpfsDeviceObject,
  IN  PIRP Irp
  );

Routine Description:

    This routine implements the Fsd part of the NtQueryVolumeInformation API
    call.

Arguments:

    VolumeDeviceObject - Supplies the volume device object where the file
        being queried exists.

    Irp - Supplies the Irp being processed.

Return Value:

    NTSTATUS - The FSD status for the Irp.