ntfs_umount
ntfs_umount(ntVolume, true);
ntfs_umount(volume->ntfs, true);
ntfs_umount(volume->ntfs, true);
ntfs_umount(volume->ntfs, true);
if (ntfs_umount(volume->ntfs, false) < 0)
mnt = ntfs_umount(vol,FALSE);
if (!ntfs_umount(vol, 0))
extern int ntfs_umount(ntfs_volume *vol, const BOOL force);
ntfs_umount(vol, FALSE);