Re: [PATCH v2 1/6] mm: migrate: do not migrate HugeTLB page whose refcount is one
From: Michal Hocko <mhocko@suse.com>
Date: 2021-01-06 16:14:16
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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