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SubjectRe: [PATCH -V4 08/10] hugetlbfs: Add a list for tracking in-use HugeTLB pages
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On Mon, 19 Mar 2012 12:00:43 +0900, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> (2012/03/17 2:39), Aneesh Kumar K.V wrote:
>
> > From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
> >
> > hugepage_activelist will be used to track currently used HugeTLB pages.
> > We need to find the in-use HugeTLB pages to support memcg removal.
> > On memcg removal we update the page's memory cgroup to point to
> > parent cgroup.
> >
> > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
>
>
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
> seems ok to me but...why the new list is not per node ? no benefit ?
>

I am not sure whether having per node will bring any performance
benefit. For cgroup removal we need to look at all the list entries
anyway.

-aneesh



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