Re: [PATCH 0/7] Accelerate page migration with batch copying and hardware offload
From: Huang, Ying
Date: Mon May 11 2026 - 21:53:22 EST
"David Hildenbrand (Arm)" <david@xxxxxxxxxx> writes:
>>> ---------------
>>>
>>> 1. Should the batch path run without a registered migrator? Patches 1-4
>>> are self-contained and use folios_mc_copy() (CPU). I have several
>>> options like making batch path always-on for eligible folios, or
>>> giving admin an option to flip the static branch, or keep the gate.
>>> I'm leaning toward always-on.
>>>
>>> 2. Carrying already_copied via folio->migrate_info vs changing the
>>> migrate_folio() callback signature (Huang, Ying). I went with the
>>> field for now to avoid touching every fs callback before the design
>>> settles. Happy to revisit.
>>
>> Personally, I still prefer to change migrate_folio() callbacks for
>> better readability.
>
> Can that be added as a cleanup on top?
It sounds good to me.
---
Best Regards,
Huang, Ying