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Merge pull request #57676 from hzxuzhonghu/volume-resize-map-opt 

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

optimize volumeResizeMap lock

**What this PR does / why we need it**:

volumeResizeMap implements VolumeResizeMap interface, but has several useless lock section and one too large critical section.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
NONE
```
pull/6/head
Kubernetes Submit Queue 2018-01-05 10:40:45 -08:00 committed by GitHub
parent 7fb2d5432d bfa462a8c0
commit d61eff6c19
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 13 deletions
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19
pkg/controller/volume/expand/cache/volume_resize_map.go vendored
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@ -52,7 +52,7 @@ type volumeResizeMap struct {
// kube client for making API calls
kubeClient clientset.Interface
// for guarding access to pvcrs map
sync.RWMutex
sync.Mutex
}
// PVCWithResizeRequest struct defines data structure that stores state needed for
@ -103,9 +103,6 @@ func (resizeMap *volumeResizeMap) AddPVCUpdate(pvc *v1.PersistentVolumeClaim, pv
return
}
resizeMap.Lock()
defer resizeMap.Unlock()
pvcSize := pvc.Spec.Resources.Requests[v1.ResourceStorage]
pvcStatusSize := pvc.Status.Capacity[v1.ResourceStorage]
@ -121,6 +118,9 @@ func (resizeMap *volumeResizeMap) AddPVCUpdate(pvc *v1.PersistentVolumeClaim, pv
ExpectedSize: pvcSize,
PersistentVolume: pv,
}
resizeMap.Lock()
defer resizeMap.Unlock()
resizeMap.pvcrs[types.UniquePVCName(pvc.UID)] = pvcRequest
}
@ -141,18 +141,15 @@ func (resizeMap *volumeResizeMap) GetPVCsWithResizeRequest() []*PVCWithResizeReq
// DeletePVC removes given pvc object from list of pvcs that needs resizing.
// deleting a pvc in this map doesn't affect operations that are already inflight.
func (resizeMap *volumeResizeMap) DeletePVC(pvc *v1.PersistentVolumeClaim) {
resizeMap.Lock()
defer resizeMap.Unlock()
pvcUniqueName := types.UniquePVCName(pvc.UID)
glog.V(5).Infof("Removing PVC %v from resize map", pvcUniqueName)
resizeMap.Lock()
defer resizeMap.Unlock()
delete(resizeMap.pvcrs, pvcUniqueName)
}
// MarkAsResized marks a pvc as fully resized
func (resizeMap *volumeResizeMap) MarkAsResized(pvcr *PVCWithResizeRequest, newSize resource.Quantity) error {
resizeMap.Lock()
defer resizeMap.Unlock()
emptyCondition := []v1.PersistentVolumeClaimCondition{}
err := resizeMap.updatePVCCapacityAndConditions(pvcr, newSize, emptyCondition)
@ -165,9 +162,6 @@ func (resizeMap *volumeResizeMap) MarkAsResized(pvcr *PVCWithResizeRequest, newS
// UpdatePVSize updates just pv size after cloudprovider resizing is successful
func (resizeMap *volumeResizeMap) UpdatePVSize(pvcr *PVCWithResizeRequest, newSize resource.Quantity) error {
resizeMap.Lock()
defer resizeMap.Unlock()
oldPv := pvcr.PersistentVolume
pvClone := oldPv.DeepCopy()
@ -201,7 +195,6 @@ func (resizeMap *volumeResizeMap) UpdatePVSize(pvcr *PVCWithResizeRequest, newSi
}
func (resizeMap *volumeResizeMap) updatePVCCapacityAndConditions(pvcr *PVCWithResizeRequest, newSize resource.Quantity, pvcConditions []v1.PersistentVolumeClaimCondition) error {
claimClone := pvcr.PVC.DeepCopy()
claimClone.Status.Capacity[v1.ResourceStorage] = newSize