Re: [PATCH 1/3] mm: move internal mempolicy APIs to new internal header

[Matthew Wilcox]

On Thu, Jul 16, 2026 at 02:30:10PM +0000, Brendan Jackman wrote:
> There are no external users for this surface, reduce the scope.
> -struct folio *folio_alloc_mpol_noprof(gfp_t gfp, unsigned int order,
> -		struct mempolicy *mpol, pgoff_t ilx, int nid);

Hm.  So what we're saying is that allocations which respect mempolicy are
only for core mm and not for, eg, device drivers to do.  Is that really
what we want to say?  I don't think so, because that's inconsistent
with having just widened __filemap_get_folio_mpol to allow guest_memfd
to specify a mempolicy.