NTSTATUS
PerfInfoLogFileName(
      PVOID FileObject,
      PUNICODE_STRING SourceString
  );

Routine Description:

    This routine logs a FileObject pointer and FileName to the log.  The pointer is used
    as hash key to map this name to other trace events.

Arguments:

    FileObject - Pointer to the FileName member within the FILE_OBJECT
                 structure.  The FileName may not yet be initialized,
                 so the actual data comes from the SourceString
                 parameter.

    SourceString - Optional pointer to the source string.


Return Value:

    STATUS_SUCCESS