linux-kernel - Re: [PATCH v1 13/36] mm/hugetlb: cleanup hugetlb_folio_init_tail

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Message-ID: <0dcef56e-0ae7-401b-9453-f6dc6a4dcebf@redhat.com>
Date: Fri, 29 Aug 2025 13:59:19 +0200
From: David Hildenbrand <david@...hat.com>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Cc: linux-kernel@...r.kernel.org, Alexander Potapenko <glider@...gle.com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Brendan Jackman <jackmanb@...gle.com>, Christoph Lameter <cl@...two.org>,
 Dennis Zhou <dennis@...nel.org>, Dmitry Vyukov <dvyukov@...gle.com>,
 dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
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 Jason Gunthorpe <jgg@...dia.com>, Jens Axboe <axboe@...nel.dk>,
 Johannes Weiner <hannes@...xchg.org>, John Hubbard <jhubbard@...dia.com>,
 kasan-dev@...glegroups.com, kvm@...r.kernel.org,
 "Liam R. Howlett" <Liam.Howlett@...cle.com>,
 Linus Torvalds <torvalds@...ux-foundation.org>, linux-arm-kernel@...s.com,
 linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org,
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Subject: Re: [PATCH v1 13/36] mm/hugetlb: cleanup
 hugetlb_folio_init_tail_vmemmap()

On 28.08.25 17:37, Lorenzo Stoakes wrote:
> On Thu, Aug 28, 2025 at 12:01:17AM +0200, David Hildenbrand wrote:
>> We can now safely iterate over all pages in a folio, so no need for the
>> pfn_to_page().
>>
>> Also, as we already force the refcount in __init_single_page() to 1,
> 
> Mega huge nit (ignore if you want), but maybe worth saying 'via
> init_page_count()'.

Will add, thanks!

-- 
Cheers

David / dhildenb