dst.Tiers[tier] = st
	}
	return &dst
}

func (ats *allTierStats) populateStats(stats map[string]madmin.TierStats) {
	if ats == nil {
		return
	}

	// Update stats for tiers as they become available.
	for tier, st := range ats.Tiers {
		stats[tier] = madmin.TierStats{
			TotalSize:   st.TotalSize,
			NumVersions: st.NumVersions,
			NumObjects:  st.NumObjects,
		}
	}
	return
}