kubernetes/pkg/kubelet/cm/cgroup_v2_manager_linux.go

const cgroupv2MemLimitFile …

type cgroupV2impl …

func NewCgroupV2Manager(cs *CgroupSubsystems, cgroupDriver string) CgroupManager { … }

// Version of the cgroup implementation on the host
func (c *cgroupV2impl) Version() int { … }

// Validate checks if all subsystem cgroups are valid
func (c *cgroupV2impl) Validate(name CgroupName) error { … }

// Exists checks if all subsystem cgroups already exist
func (c *cgroupV2impl) Exists(name CgroupName) bool { … }

// MemoryUsage returns the current memory usage of the specified cgroup,
// as read from cgroupfs.
func (c *cgroupV2impl) MemoryUsage(name CgroupName) (int64, error) { … }

// Get the resource config values applied to the cgroup for specified resource type
func (c *cgroupV2impl) GetCgroupConfig(name CgroupName, resource v1.ResourceName) (*ResourceConfig, error) { … }

func (c *cgroupV2impl) getCgroupCPUConfig(cgroupPath string) (*ResourceConfig, error) { … }

func (c *cgroupV2impl) getCgroupMemoryConfig(cgroupPath string) (*ResourceConfig, error) { … }

// getSupportedUnifiedControllers returns a set of supported controllers when running on cgroup v2
func getSupportedUnifiedControllers() sets.Set[string] { … }

// readUnifiedControllers reads the controllers available at the specified cgroup
func readUnifiedControllers(path string) (sets.Set[string], error) { … }

// buildCgroupUnifiedPath builds a path to the specified name.
func (c *cgroupV2impl) buildCgroupUnifiedPath(name CgroupName) string { … }

// Convert cgroup v1 cpu.shares value to cgroup v2 cpu.weight
// https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2254-cgroup-v2#phase-1-convert-from-cgroups-v1-settings-to-v2
func cpuSharesToCPUWeight(cpuShares uint64) uint64 { … }

// Convert cgroup v2 cpu.weight value to cgroup v1 cpu.shares
// https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/2254-cgroup-v2#phase-1-convert-from-cgroups-v1-settings-to-v2
func cpuWeightToCPUShares(cpuWeight uint64) uint64 { … }