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Merge pull request #65425 from islinwb/ipvs_cleanup_rules

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Automatic merge from submit-queue (batch tested with PRs 66136, 64999, 65425, 66120, 66074). 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>.

Not step into ipvs.CleanupLeftovers() if canUseIPVS's false

**What this PR does / why we need it**:
Earlier we decide whether we should clean up the left-over ipvs rules inside `ipvs.CleanupLeftovers()`, therefore we call function  `ipvs.CanUseIPVSProxier()` two times (and `GetModules()` two times).  Actually no need to step into `ipvs.CleanupLeftovers()` if `canUseIPVS` is false.

**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
```
This commit is contained in:
Kubernetes Submit Queue
2018-07-12 15:14:16 -07:00
committed by GitHub
parent a54d7c6df3 405d5f802c
commit fce58d25ac
2 changed files with 8 additions and 6 deletions
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3
pkg/proxy/ipvs/proxier.go
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@@ -551,9 +551,6 @@ func cleanupIptablesLeftovers(ipt utiliptables.Interface) (encounteredError bool
// CleanupLeftovers clean up all ipvs and iptables rules created by ipvs Proxier.
func CleanupLeftovers(ipvs utilipvs.Interface, ipt utiliptables.Interface, ipset utilipset.Interface, cleanupIPVS bool) (encounteredError bool) {
if canUse, _ := CanUseIPVSProxier(NewLinuxKernelHandler(), ipset); !canUse {
return false
}
if cleanupIPVS {
// Return immediately when ipvs interface is nil - Probably initialization failed in somewhere.
if ipvs == nil {