Re: [PATCH v3] mm: memcontrol: Add the missing numa_stat interface for cgroup v2

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Muchun Song writes:
In the cgroup v1, we have a numa_stat interface. This is useful for
providing visibility into the numa locality information within an
memcg since the pages are allowed to be allocated from any physical
node. One of the use cases is evaluating application performance by
combining this information with the application's CPU allocation.
But the cgroup v2 does not. So this patch adds the missing information.

Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
Suggested-by: Shakeel Butt <shakeelb@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>

This is a feature patch, why does this have LKP's Reported-by?



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