}
	ceil = numerator / denominator
	if numerator > 0 && numerator%denominator != 0 {
		ceil++
	}
	return
}

// cleanMinioInternalMetadataKeys removes X-Amz-Meta- prefix from minio internal
// encryption metadata.
func cleanMinioInternalMetadataKeys(metadata map[string]string) map[string]string {
	newMeta := make(map[string]string, len(metadata))
	for k, v := range metadata {