ATA_PFLAG_LOADING
ap->pflags |= ATA_PFLAG_LOADING;
if (ap->pflags & ATA_PFLAG_LOADING)
ap->pflags &= ~ATA_PFLAG_LOADING;
if (!(link->ap->pflags & ATA_PFLAG_LOADING) &&
if (!(ap->pflags & ATA_PFLAG_LOADING))