Merge pull request #49721 from huzhengchuan/fix_typos

Automatic merge from submit-queue

Fix some typos

fix some typos in kubelet



``` 
NONE
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pkg/kubelet/cm/cgroup_manager_linux.go

@@ -154,7 +154,7 @@ func (l *libcontainerAdapter) revertName(name string) CgroupName {
 	return CgroupName(driverName)
 }
 
-// adaptName converts a CgroupName identifer to a driver specific conversion value.
+// adaptName converts a CgroupName identifier to a driver specific conversion value.
 // if outputToCgroupFs is true, the result is returned in the cgroupfs format rather than the driver specific form.
 func (l *libcontainerAdapter) adaptName(cgroupName CgroupName, outputToCgroupFs bool) string {
 	if l.cgroupManagerType != libcontainerSystemd {
@@ -229,7 +229,7 @@ func (m *cgroupManagerImpl) Exists(name CgroupName) bool {
 
 	// the presence of alternative control groups not known to runc confuses
 	// the kubelet existence checks.
-	// ideally, we would have a mechaninsm in runc to support Exists() logic
+	// ideally, we would have a mechanism in runc to support Exists() logic
 	// scoped to the set control groups it understands.  this is being discussed
 	// in https://github.com/opencontainers/runc/issues/1440
 	// once resolved, we can remove this code.
@@ -237,7 +237,7 @@ func (m *cgroupManagerImpl) Exists(name CgroupName) bool {
 
 	// If even one cgroup path doesn't exist, then the cgroup doesn't exist.
 	for controller, path := range cgroupPaths {
-		// ignore mounts we dont care about
+		// ignore mounts we don't care about
 		if !whitelistControllers.Has(controller) {
 			continue
 		}

pkg/kubelet/cm/pod_container_manager_linux.go

@@ -66,7 +66,7 @@ func (m *podContainerManagerImpl) Exists(pod *v1.Pod) bool {
 
 // EnsureExists takes a pod as argument and makes sure that
 // pod cgroup exists if qos cgroup hierarchy flag is enabled.
-// If the pod level container doesen't already exist it is created.
+// If the pod level container doesn't already exist it is created.
 func (m *podContainerManagerImpl) EnsureExists(pod *v1.Pod) error {
 	podContainerName, _ := m.GetPodContainerName(pod)
 	// check if container already exist
@@ -91,7 +91,7 @@ func (m *podContainerManagerImpl) EnsureExists(pod *v1.Pod) error {
 	return nil
 }
 
-// GetPodContainerName returns the CgroupName identifer, and its literal cgroupfs form on the host.
+// GetPodContainerName returns the CgroupName identifier, and its literal cgroupfs form on the host.
 func (m *podContainerManagerImpl) GetPodContainerName(pod *v1.Pod) (CgroupName, string) {
 	podQOS := v1qos.GetPodQOS(pod)
 	// Get the parent QOS container name

pkg/kubelet/cm/qos_container_manager_linux.go

@@ -127,7 +127,7 @@ func (m *qosContainerManagerImpl) Start(getNodeAllocatable func() v1.ResourceLis
 	m.activePods = activePods
 
 	// update qos cgroup tiers on startup and in periodic intervals
-	// to ensure desired state is in synch with actual state.
+	// to ensure desired state is in sync with actual state.
 	go wait.Until(func() {
 		err := m.UpdateCgroups()
 		if err != nil {

pkg/kubelet/cm/types.go

@@ -47,13 +47,13 @@ type CgroupConfig struct {
 	ResourceParameters *ResourceConfig
 }
 
-// MemoryStats holds the on-demand stastistics from the memory cgroup
+// MemoryStats holds the on-demand statistics from the memory cgroup
 type MemoryStats struct {
 	// Memory usage (in bytes).
 	Usage int64
 }
 
-// ResourceStats holds on-demand stastistics from various cgroup subsystems
+// ResourceStats holds on-demand statistics from various cgroup subsystems
 type ResourceStats struct {
 	// Memory statistics.
 	MemoryStats *MemoryStats
@@ -99,12 +99,12 @@ type QOSContainersInfo struct {
 // The Pod workers interact with the PodContainerManager to create and destroy
 // containers for the pod.
 type PodContainerManager interface {
-	// GetPodContainerName returns the CgroupName identifer, and its literal cgroupfs form on the host.
+	// GetPodContainerName returns the CgroupName identifier, and its literal cgroupfs form on the host.
 	GetPodContainerName(*v1.Pod) (CgroupName, string)
 
 	// EnsureExists takes a pod as argument and makes sure that
 	// pod cgroup exists if qos cgroup hierarchy flag is enabled.
-	// If the pod cgroup doesen't already exist this method creates it.
+	// If the pod cgroup doesn't already exist this method creates it.
 	EnsureExists(*v1.Pod) error
 
 	// Exists returns true if the pod cgroup exists.

pkg/kubelet/cm/util/cgroups_linux.go

@@ -45,7 +45,7 @@ func getCgroupPath(cgroupPath string) (string, error) {
 
 	// If the cgroup name/path is absolute do not look relative to the cgroup of the init process.
 	if filepath.IsAbs(cgroupPath) {
-		// Sometimes subsystems can be mounted togethger as 'cpu,cpuacct'.
+		// Sometimes subsystems can be mounted together as 'cpu,cpuacct'.
 		return filepath.Join(root, mnt, cgroupPath), nil
 	}