Function defaults

cgroup1/utils.go:36–66

defaults returns all known groups

(root string)

// defaults returns all known groups
func defaults(root string) ([]Subsystem, error) {
	h, err := NewHugetlb(root)
	if err != nil && !os.IsNotExist(err) {
		return nil, err
	}
	s := []Subsystem{
		NewNamed(root, "systemd"),
		NewFreezer(root),
		NewPids(root),
		NewNetCls(root),
		NewNetPrio(root),
		NewPerfEvent(root),
		NewCpuset(root),
		NewCpu(root),
		NewCpuacct(root),
		NewMemory(root),
		NewBlkio(root),
		NewRdma(root),
	}
	// only add the devices cgroup if we are not in a user namespace
	// because modifications are not allowed
	if !userns.RunningInUserNS() {
		s = append(s, NewDevices(root))
	}
	// add the hugetlb cgroup if error wasn't due to missing hugetlb
	// cgroup support on the host
	if err == nil {
		s = append(s, h)
	}
	return s, nil
}

// remove will remove a cgroup path handling EAGAIN and EBUSY errors and
// retrying the remove after a exp timeout