VOID
MiCheckForControlAreaDeletion(
  IN  PCONTROL_AREA ControlArea
  );

Routine Description:

    This routine checks the reference counts for the specified
    control area, and if the counts are all zero, it marks the
    control area for deletion and queues it to the deletion thread.

Arguments:

    ControlArea - Supplies a pointer to the control area to check.

Return Value:

    None.

Environment:

    Kernel mode, PFN lock held.