}

	var numHealers uint64

	if numCores := uint64(runtime.GOMAXPROCS(0)); info.NRRequests > numCores {
		numHealers = numCores / 4
	} else {
		numHealers = info.NRRequests / 4
	}
	if numHealers < 4 {
		numHealers = 4
	}
	// allow overriding this value as well..
	if v := globalHealConfig.GetWorkers(); v > 0 {
		numHealers = uint64(v)
	}

	Children dataUsageHashMap
	// These fields do no include any children.
	Size     int64
	Objects  uint64
	ObjSizes sizeHistogram
}

//msgp:tuple dataUsageEntryV5
type dataUsageEntryV5 struct {
	Children dataUsageHashMap
	// These fields do no include any children.
	Size      int64
	Objects   uint64
	Versions  uint64 // Versions that are not delete markers.
	ObjSizes  sizeHistogram
	Compacted bool
}

	LastUpdate time.Time

	ObjectsTotalCount uint64
	ObjectsTotalSize  uint64

	ItemsHealed uint64
	ItemsFailed uint64

	BytesDone   uint64
	BytesFailed uint64

	// Last object scanned.
	Bucket string `json:"-"`
	Object string `json:"-"`

	// Numbers when current bucket started healing,
	// for resuming with correct numbers.
	ResumeItemsHealed  uint64 `json:"-"`
	ResumeItemsFailed  uint64 `json:"-"`

//
// The above means that any added/deleted fields are incompatible.
//
//msgp:tuple DiskInfo
type DiskInfo struct {
	Total      uint64
	Free       uint64
	Used       uint64
	UsedInodes uint64
	FreeInodes uint64
	Major      uint32
	Minor      uint32
	NRRequests uint64
	FSType     string
	RootDisk   bool
	Healing    bool
	Scanning   bool
	Endpoint   string
	MountPath  string
	ID         string

	debug bool
}

type sizeSummary struct {
	totalSize       int64
	versions        uint64
	deleteMarkers   uint64
	replicatedSize  int64
	replicatedCount int64
	pendingSize     int64
	failedSize      int64
	replicaSize     int64
	replicaCount    int64
	pendingCount    uint64
	failedCount     uint64
	replTargetStats map[string]replTargetSizeSummary
	tiers           map[string]tierStats
}

	totalWrites           atomic.Uint64
	totalDeletes          atomic.Uint64
	totalErrsAvailability atomic.Uint64 // Captures all data availability errors such as faulty disk, timeout errors.
	totalErrsTimeout      atomic.Uint64 // Captures all timeout only errors

	// apiCalls should be placed first so alignment is guaranteed for atomic operations.
	apiCalls     [storageMetricLast]uint64

type expiryStats struct {
	missedExpiryTasks      atomic.Int64
	missedFreeVersTasks    atomic.Int64
	missedTierJournalTasks atomic.Int64
	workers                atomic.Int32
}

// MissedTasks returns the number of ILM expiry tasks that were missed since
// there were no available workers.
func (e *expiryStats) MissedTasks() int64 {
	return e.missedExpiryTasks.Load()
}

	partSize, err := optimalPartSize(length)
	if err != nil {
		return remoteVersionID(""), err
	}
	res, err := m.client.PutObject(ctx, m.Bucket, m.getDest(object), r, length, minio.PutObjectOptions{
		StorageClass:         m.StorageClass,
		PartSize:             uint64(partSize),
		DisableContentSha256: true,

	return dataUsageInfo, nil
}

func (s *xlStorage) getDeleteAttribute() uint64 {
	attr := "user.total_deletes"
	buf, err := xattr.LGet(s.formatFile, attr)
	if err != nil {
		// We start off with '0' if we can read the attributes
		return 0
	}
	return binary.LittleEndian.Uint64(buf[:8])
}

func (s *xlStorage) getWriteAttribute() uint64 {
	attr := "user.total_writes"
	buf, err := xattr.LGet(s.formatFile, attr)

type IAMSys struct {
	// Need to keep them here to keep alignment - ref: https://golang.org/pkg/sync/atomic/#pkg-note-BUG
	// metrics
	LastRefreshTimeUnixNano         uint64
	LastRefreshDurationMilliseconds uint64
	TotalRefreshSuccesses           uint64
	TotalRefreshFailures            uint64

	sync.Mutex

	iamRefreshInterval time.Duration

	LDAPConfig   xldap.Config  // only valid if usersSysType is LDAPUsers