Re: [PATCH] mm: fix is_pinnable_page against on cma page

From: David Hildenbrand
Date: Mon May 02 2022 - 21:16:14 EST



>>>> However, I assume we have the same issue right now already with
>> ZONE_MOVABLE and MIGRATE_CMA when trying to pin a page residing on these
>
> ZONE_MOVALBE is also changed dynamically?
>

Sorry, with "same issue" I meant failing to pin if having to migrate and
the page is temporarily unmovable.

>> there are temporarily unmovable and we fail to migrate. But it would now
>> apply even without ZONE_MOVABLE or MIGRATE_CMA. Hm...
>
> Didn't parse your last mention.

On a system that neither uses ZONE_MOVABLE nor MIGRATE_CMA we might have
to migrate now when pinning.

--
Thanks,

David / dhildenb