INNER CODE UNIT · Go

getOldBpfDir

cilium/tetragon · cmd/tetragon/main.go:168

func getOldBpfDir(path string) (string, error) {
	// sysfs directory will be removed, so we don't care
	if option.Config.ReleasePinned {
		return "", nil
	}
	if _, err := os.Stat(path); err != nil {
		return "", nil
	}
	old := path + "_old"
	// remove the 'xxx_old' leftover if neded
	if _, err := os.Stat(old); err == nil {
		os.RemoveAll(old)
		log.Info("Found bpf leftover instance, removing: " + old)
	}
	if err := os.Rename(path, old); err != nil {
		return "", err
	}
	log.Info(fmt.Sprintf("Found bpf instance: %s, moved to: %s", path, old))

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