}
		if metaErr == ErrNone {
			content.UserMetadata = &Metadata{}
			switch kind, _ := crypto.IsEncrypted(object.UserDefined); kind {
			case crypto.S3:
				content.UserMetadata.Set(xhttp.AmzServerSideEncryption, xhttp.AmzEncryptionAES)
			case crypto.S3KMS:
				content.UserMetadata.Set(xhttp.AmzServerSideEncryption, xhttp.AmzEncryptionKMS)
			case crypto.SSEC:

	}
	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 remoteVersionID(res.VersionID), m.ToObjectError(err, object)
}

func (m *warmBackendMinIO) Put(ctx context.Context, object string, r io.Reader, length int64) (remoteVersionID, error) {

	res, err := s3.client.PutObject(ctx, s3.Bucket, s3.getDest(object), r, length, minio.PutObjectOptions{
		SendContentMd5: true,
		StorageClass:   s3.StorageClass,
		UserMetadata:   meta,
	})
	return remoteVersionID(res.VersionID), s3.ToObjectError(err, object)
}

func (s3 *warmBackendS3) Put(ctx context.Context, object string, r io.Reader, length int64) (remoteVersionID, error) {