di.DrivePath = info.MountPath
			di.TotalSpace = info.Total
			di.UsedSpace = info.Used
			di.AvailableSpace = info.Free
			di.UUID = info.ID
			di.Major = info.Major
			di.Minor = info.Minor
			di.RootDisk = info.RootDisk
			di.Healing = info.Healing
			di.Scanning = info.Scanning
			di.State = diskErrToDriveState(err)
			di.FreeInodes = info.FreeInodes
			di.UsedInodes = info.UsedInodes

package disk_test

import (
	"testing"

	"github.com/minio/minio/internal/disk"
)

func TestFree(t *testing.T) {
	di, err := disk.GetInfo(t.TempDir(), true)
	if err != nil {
		t.Fatal(err)
	}

	if di.FSType == "UNKNOWN" {
		t.Error("Unexpected FSType", di.FSType)
	}

	{"(0*4)(BP)", "(BP)"},
	{"(1*4)(DI)", "4(DI)"},
	{"(4*4)(BP)", "16(BP)"},
	{"(AX)", "(AX)"},
	{"(BP)(CX*4)", "(BP)(CX*4)"},
	{"(BP*8)", "0(BP*8)"},
	{"(BX)", "(BX)"},
	{"(SP)", "(SP)"},
	{"*AX", "AX"}, // TODO: Should make * illegal here; a simple alias for JMP AX.
	{"*runtime·_GetStdHandle(SB)", "*runtime._GetStdHandle(SB)"},
	{"-(4+12)(DI)", "-16(DI)"},
	{"-1(DI)(BX*1)", "-1(DI)(BX*1)"},

	ci, ok := compressors.Load(method)
	if !ok {
		return nil
	}
	return ci.(Compressor)
}

func decompressor(method uint16) Decompressor {
	di, ok := decompressors.Load(method)
	if !ok {
		return nil
	}
	return di.(Decompressor)

		func() (DiskInfo, error) {
			dcinfo := DiskInfo{}
			di, err := getDiskInfo(s.drivePath)
			if err != nil {
				return dcinfo, err
			}
			dcinfo.Major = di.Major
			dcinfo.Minor = di.Minor
			dcinfo.Total = di.Total
			dcinfo.Free = di.Free
			dcinfo.Used = di.Used
			dcinfo.UsedInodes = di.Files - di.Ffree
			dcinfo.FreeInodes = di.Ffree
			dcinfo.FSType = di.FSType
			diskID, err := s.GetDiskID()

func calcCommonWritesDeletes(infos []DiskInfo, readQuorum int) (commonWrite, commonDelete uint64) {
	deletes := make([]uint64, len(infos))
	writes := make([]uint64, len(infos))
	for index, di := range infos {
		deletes[index] = di.Metrics.TotalDeletes
		writes[index] = di.Metrics.TotalWrites
	}

	filter := func(list []uint64) (commonCount uint64) {
		max := 0
		signatureMap := map[uint64]int{}
		for _, v := range list {

	opsID   string
}

// Lock - block until write lock is taken or timeout has occurred.
func (di *distLockInstance) GetLock(ctx context.Context, timeout *dynamicTimeout) (LockContext, error) {
	lockSource := getSource(2)
	start := UTCNow()

	newCtx, cancel := context.WithCancel(ctx)
	if !di.rwMutex.GetLock(newCtx, cancel, di.opsID, lockSource, dsync.Options{
		Timeout:       timeout.Timeout(),

	for _, i := range r.Perm(len(disks)) {
		i := i
		wg.Add(1)
		go func() {
			defer wg.Done()
			if disks[i] == nil {
				return
			}
			di, err := disks[i].DiskInfo(context.Background(), DiskInfoOptions{})
			if err != nil || di.Healing {
				// - Do not consume disks which are not reachable
				//   unformatted or simply not accessible for some reason.
				//

	for _, d := range localDrives {
		di, err := d.DiskInfo(GlobalContext, DiskInfoOptions{})
		labels := map[string]string{"drive": di.Endpoint}
		if err == nil {
			updateResourceMetrics(driveSubsystem, usedBytes, float64(di.Used), labels, false)
			updateResourceMetrics(driveSubsystem, totalBytes, float64(di.Total), labels, false)
			updateResourceMetrics(driveSubsystem, usedInodes, float64(di.UsedInodes), labels, false)

	for i, disk := range disks {
		if disk == nil {
			continue
		}
		if di, err := disk.DiskInfo(ctx, opts); err == nil {
			res[i] = &di
		}
	}
	return res
}

// hasSpaceFor returns whether the disks in `di` have space for and object of a given size.
func hasSpaceFor(di []*DiskInfo, size int64) (bool, error) {
	// We multiply the size by 2 to account for erasure coding.
	size *= 2