if strptr != nil {
			res = append(res, pathJoin(prefix, name, *strptr))
		}
		return true
	})
	return res
}

// activeDrives returns the number of currently active disks.
// (since this is concurrent it may not be 100% reliable)
func (p *scannerMetrics) activeDrives() int {
	var i int
	p.currentPaths.Range(func(k, v interface{}) bool {
		i++
		return true
	})
	return i
}