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Merge pull request #52588 from bobbypage/cristatsprovider-fixes

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Automatic merge from submit-queue (batch tested with PRs 52486, 52588, 52524). 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>..

Fix nil pointer dereference in cri stats provider when there are no image file systems

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

This PR fixes a nil pointer dereference in CRI stats provider when there are no image filesystems. See https://github.com/kubernetes/kubernetes/pull/51152 for discussion.

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

**Special notes for your reviewer**:

**Release note**:

```release-note
```

/cc yujuhong yguo0905
This commit is contained in:
Kubernetes Submit Queue 2017-09-16 06:34:23 -07:00 committed by GitHub
commit 02731cc767
1 changed files with 17 additions and 15 deletions
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4
pkg/kubelet/stats/cri_stats_provider.go
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@ -258,7 +258,8 @@ func (p *criStatsProvider) makeContainerStats(
result.Rootfs.InodesUsed = &stats.WritableLayer.InodesUsed.Value
}
}
storageID := stats.WritableLayer.StorageId
storageID := stats.GetWritableLayer().GetStorageId()
if storageID != nil {
imageFsInfo, found := uuidToFsInfo[*storageID]
if !found {
imageFsInfo = p.getFsInfo(storageID)
@ -274,6 +275,7 @@ func (p *criStatsProvider) makeContainerStats(
result.Rootfs.InodesFree = imageFsInfo.InodesFree
result.Rootfs.Inodes = imageFsInfo.Inodes
}
}
return result
}