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    SubjectRe: [PATCH v2 1/6] mm: migrate: do not migrate HugeTLB page whose refcount is one
    On Wed 06-01-21 16:47:34, Muchun Song wrote:
    > If the refcount is one when it is migrated, it means that the page
    > was freed from under us. So we are done and do not need to migrate.

    Is this common enough that it would warrant the explicit check for each
    migration?
    --
    Michal Hocko
    SUSE Labs

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