Re: [RFC PATCH 1/4] mm: migrate: Allow misplaced migration without VMA too

From: Gregory Price
Date: Thu Mar 06 2025 - 13:25:08 EST


On Thu, Mar 06, 2025 at 05:45:34PM +0000, Matthew Wilcox wrote:
> On Thu, Mar 06, 2025 at 12:24:16PM -0500, Gregory Price wrote:
> > we may also need this:
> > https://lore.kernel.org/linux-mm/20250107000346.1338481-4-gourry@xxxxxxxxxx/
> >
> > May be worth just pulling these ahead to avoid conflict.
>
> Or not putting them in at all because this whole thing is a magnificent
> waste of time?

Divorced from the tiering mechanisms, is making misplaced migration able
to migrate unmapped pages not generally useful?

~Gregory