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

Routine Description:

    This routine is the FSD routine that handles directory control
    functions (i.e., query and notify).

Arguments:

    NpfsDeviceObject - Supplies the device object for the directory function.

    Irp - Supplies the IRP to process

Return Value:

    NTSTATUS - The appropriate result status