Re: [PATCH v2 1/6] mm: migrate: do not migrate HugeTLB page whose refcount is one

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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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