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support for `cgroups-per-qos` using the configured `cgroup-driver`.\r\n\r\n<!-- Reviewable:start -->\r\n---\r\nThis change is [<img src=\"https://reviewable.kubernetes.io/review_button.svg\" height=\"34\" align=\"absmiddle\" alt=\"Reviewable\"/>](https://reviewable.kubernetes.io/reviews/kubernetes/kubernetes/31546)\r\n<!-- Reviewable:end -->\r\n"},"comment":{"url":"https://api.github.com/repos/kubernetes/kubernetes/issues/comments/256974075","html_url":"https://github.com/kubernetes/kubernetes/pull/31546#issuecomment-256974075","issue_url":"https://api.github.com/repos/kubernetes/kubernetes/issues/31546","id":256974075,"user":{"login":"derekwaynecarr","id":6233452,"avatar_url":"https://avatars.githubusercontent.com/u/6233452?v=3","gravatar_id":"","url":"https://api.github.com/users/derekwaynecarr","html_url":"https://github.com/derekwaynecarr","followers_url":"https://api.github.com/users/derekwaynecarr/followers","following_url":"https://api.github.com/users/derekwaynecarr/following{/other_user}","gists_url":"https://api.github.com/users/derekwaynecarr/gists{/gist_id}","starred_url":"https://api.github.com/users/derekwaynecarr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/derekwaynecarr/subscriptions","organizations_url":"https://api.github.com/users/derekwaynecarr/orgs","repos_url":"https://api.github.com/users/derekwaynecarr/repos","events_url":"https://api.github.com/users/derekwaynecarr/events{/privacy}","received_events_url":"https://api.github.com/users/derekwaynecarr/received_events","type":"User","site_admin":false},"created_at":"2016-10-28T17:03:27Z","updated_at":"2016-10-28T17:03:27Z","body":"\n\n\n\n\n\n\n\n*[pkg/kubelet/kubelet_pods.go, line 1261 at r10](https://reviewable.kubernetes.io:443/reviews/kubernetes/kubernetes/31546#-KTHl3R866lmZFMobHWk-r10-1261:-KVBEaPuaWQEVRa-wSmY:b-pl7fdn) ([raw file](https://github.com/kubernetes/kubernetes/blob/b95cf758e26bcbe0c2d30c9b7f66773843661eb7/pkg/kubelet/kubelet_pods.go#L1261)):*\n<details><summary><i>Previously, vishh (Vish Kannan) wrote…</i></summary>\n> Yeah. The race is possible and highly likely to happen. Would it make sense to check every pod's existence individually before deleting it? I don't think a cgroup will exist without a corresponding pod object.\n> Also during restart scenario, kubelet is expected to populate its pod cache before attempting to run cgroups gc. It might be worth checking that logic too and may be even add a word of caution wrt. to synchronization\n</details>\ni re-ordered the code from the original comment, i will look to clarify with a comment.\n\n---\n\n\n*Comments from [Reviewable](https://reviewable.kubernetes.io:443/reviews/kubernetes/kubernetes/31546)*\n<!-- Sent from Reviewable.io -->\n"}}
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