for i := 0; i < opts.concurrency; i++ {
		go func(i int) {
			defer wg.Done()
			for {
				t := time.Now()
				reader := newRandomReader(opts.objectSize)
				tmpObjName := pathJoin(objNamePrefix, fmt.Sprintf("%d/%d", i, objCountPerThread[i]))
				info, err := globalMinioClient.PutObject(uploadsCtx, opts.bucketName, tmpObjName, reader, int64(opts.objectSize), popts)
				if err != nil {

		return
	}

	// Validate pre-conditions if any.
	opts.CheckPrecondFn = func(oi ObjectInfo) bool {
		if _, err := DecryptObjectInfo(&oi, r); err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return true
		}

		return checkPreconditions(ctx, w, r, oi, opts)
	}

	zipObjInfo, err := getObjectInfo(ctx, bucket, zipPath, opts)
	if err != nil {

			return err
		}
		return r.copyWithMultipartfromSource(ctx, api, core, srcObjInfo, opts, partsCount)
	}
	gopts := miniogo.GetObjectOptions{
		VersionID: srcObjInfo.VersionID,
	}
	if err := gopts.SetMatchETag(srcObjInfo.ETag); err != nil {
		return err
	}
	rd, objInfo, _, err := core.GetObject(ctx, srcBucket, srcObject, gopts)
	if err != nil {

		if report == nil || report.BucketStats == nil {
			continue
		}
		for opts := range report.BucketStats {
			d, ok := consolidatedReport.BucketStats[opts]
			if !ok {
				d = bandwidth.Details{
					LimitInBytesPerSecond: report.BucketStats[opts].LimitInBytesPerSecond,
				}
			}
			dt, ok := report.BucketStats[opts]
			if ok {
				d.CurrentBandwidthInBytesPerSecond += dt.CurrentBandwidthInBytesPerSecond

	opts, err = getDefaultOpts(hdr, false, metadata)
	if err != nil {
		return opts, err
	}

	opts.MTime = mtime
	opts.ReplicationSourceLegalholdTimestamp = lholdtimestmp
	opts.ReplicationSourceRetentionTimestamp = retaintimestmp
	opts.ReplicationSourceTaggingTimestamp = taggingtimestmp
	opts.PreserveETag = etag
	opts.WantChecksum = wantCRC

	return opts, nil
}

		}
		return nil
	}

	// Stream output.
	return scanDir(opts.BaseDir)
}

func (p *xlStorageDiskIDCheck) WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) (err error) {
	if err := p.checkID(opts.DiskID); err != nil {
		return err
	}
	ctx, done, err := p.TrackDiskHealth(ctx, storageMetricWalkDir, opts.Bucket, opts.BaseDir)
	if err != nil {
		return err
	}
	defer done(&err)

	// Bucket operations.
	MakeBucket(ctx context.Context, bucket string, opts MakeBucketOptions) error
	GetBucketInfo(ctx context.Context, bucket string, opts BucketOptions) (bucketInfo BucketInfo, err error)
	ListBuckets(ctx context.Context, opts BucketOptions) (buckets []BucketInfo, err error)
	DeleteBucket(ctx context.Context, bucket string, opts DeleteBucketOptions) error

	if userDefined[xhttp.AmzStorageClass] == storageclass.STANDARD {
		delete(userDefined, xhttp.AmzStorageClass)
	}

	if opts.WantChecksum != nil && opts.WantChecksum.Type.IsSet() {
		userDefined[hash.MinIOMultipartChecksum] = opts.WantChecksum.Type.String()
	}

	modTime := opts.MTime
	if opts.MTime.IsZero() {
		modTime = UTCNow()
	}

func readDirWithOpts(dirPath string, opts readDirOpts) (entries []string, err error) {
	d, err := Open(dirPath)
	if err != nil {
		return nil, osErrToFileErr(err)
	}
	defer d.Close()

	maxEntries := 1000
	if opts.count > 0 && opts.count < maxEntries {
		maxEntries = opts.count
	}

	done := false
	remaining := opts.count

	for !done {
		// Read up to max number of entries.

	WalkDir(ctx context.Context, opts WalkDirOptions, wr io.Writer) error

	// Metadata operations
	DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) error
	DeleteVersions(ctx context.Context, volume string, versions []FileInfoVersions, opts DeleteOptions) []error