LOGICAL
MiCauseOverCommitPopup(
      SIZE_T NumberOfPages,
  IN  ULONG Extension
  );

Routine Description:

    This function causes an over commit popup to occur.  If a popup is pending
    it returns FALSE.  Otherwise, it queues a popup to a noncritical worker
    thread.

Arguments:

    NumberOfPages - Supplies the number of pages of commit requested.

    Extension - Supplies the extension to grant.

Return Value:

    TRUE - An overcommit popup was queued.

    FALSE - An overcommit popup is still pending and will not be queued.