// Create or truncate an existing file before writing
func (s *xlStorage) writeAllInternal(ctx context.Context, filePath string, b []byte, sync bool, skipParent string) (err error) {
	flags := os.O_CREATE | os.O_WRONLY | os.O_TRUNC

	var w *os.File
	if sync {
		// Perform DirectIO along with fdatasync for larger xl.meta, mostly when
		// xl.meta has "inlined data" we prefer writing O_DIRECT and then doing