Re: [PATCH v5] page_alloc: allow migration of smaller hugepages during contig_alloc

[Gregory Price]

On Thu, Dec 18, 2025 at 02:35:19PM -0500, Johannes Weiner wrote:
> On Thu, Dec 18, 2025 at 02:08:31PM -0500, Gregory Price wrote:
> > +			page = compound_head(page);
> > +			order = compound_order(page);
> > +			if ((order >= MAX_FOLIO_ORDER) ||
> > +			    (nr_pages <= (1 << order)))
> > +				return false;
> 
> If you keep searching past it, you can step over the whole page to
> speed things up a bit:
> 
> 			i += (1 << order) - 1;

ack, good catch, added to v6

~Gregory