}
	return destObj
}

func (s3 *warmBackendS3) PutWithMeta(ctx context.Context, object string, r io.Reader, length int64, meta map[string]string) (remoteVersionID, error) {
	res, err := s3.client.PutObject(ctx, s3.Bucket, s3.getDest(object), r, length, minio.PutObjectOptions{
		SendContentMd5: true,
		StorageClass:   s3.StorageClass,
		UserMetadata:   meta,
	})

	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,
		UserMetadata:         meta,
	})

	return er.putObject(ctx, bucket, object, data, opts)
}

// putObject wrapper for erasureObjects PutObject
func (er erasureObjects) putObject(ctx context.Context, bucket string, object string, r *PutObjReader, opts ObjectOptions) (objInfo ObjectInfo, err error) {
	if !opts.NoAuditLog {
		auditObjectErasureSet(ctx, "PutObject", object, &er)
	}

	data := r.Reader

	if opts.CheckPrecondFn != nil {

			// that for fresh PutObject() call dstDataPath can never exist.
			// if its an overwrite then the caller deletes the DataDir
			// in a separate RPC call.
			s.moveToTrash(dstDataPath, true, false)

			// If we are healing we should purge any legacyDataPath content,
			// that was previously preserved during PutObject() call
			// on a versioned bucket.

	}
}

type objectIO interface {
	GetObjectNInfo(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, opts ObjectOptions) (reader *GetObjectReader, err error)
	PutObject(ctx context.Context, bucket, object string, data *PutObjReader, opts ObjectOptions) (objInfo ObjectInfo, err error)
}

// load the cache content with name from minioMetaBackgroundOpsBucket.

}

// The []journal contains all the different versions of the object.
//
// This array can have 3 kinds of objects:
//
// ``object``: If the object is uploaded the usual way: putobject, multipart-put, copyobject
//
// ``delete``: This is the delete-marker
//
// ``legacyObject``: This is the legacy object in xlV1 format, preserved until its overwritten
//