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SubjectRe: [PATCH 2/5] mm: migration of hugetlbfs page skip memcg
On Sun, Aug 30, 2020 at 02:01:30PM -0700, Hugh Dickins wrote:
> hugetlbfs pages do not participate in memcg: so although they do find
> most of migrate_page_states() useful, it would be better if they did
> not call into mem_cgroup_migrate() - where Qian Cai reported that LTP's
> move_pages12 triggers the warning in Alex Shi's prospective commit
> "mm/memcg: warning on !memcg after readahead page charged".
> Signed-off-by: Hugh Dickins <>

Acked-by: Johannes Weiner <>

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