linux-kernel - Re: [RFC v2 3/4] mm: add largest_zero

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Message-ID: <8368f30f-19dc-4272-bc36-13d6c2377bdb@redhat.com>
Date: Fri, 1 Aug 2025 17:33:56 +0200
From: David Hildenbrand <david@...hat.com>
To: "Ritesh Harjani (IBM)" <ritesh.list@...il.com>,
 "Pankaj Raghav (Samsung)" <kernel@...kajraghav.com>,
 Suren Baghdasaryan <surenb@...gle.com>, Ryan Roberts <ryan.roberts@....com>,
 Baolin Wang <baolin.wang@...ux.alibaba.com>, Borislav Petkov <bp@...en8.de>,
 Ingo Molnar <mingo@...hat.com>, "H . Peter Anvin" <hpa@...or.com>,
 Vlastimil Babka <vbabka@...e.cz>, Zi Yan <ziy@...dia.com>,
 Mike Rapoport <rppt@...nel.org>, Dave Hansen <dave.hansen@...ux.intel.com>,
 Michal Hocko <mhocko@...e.com>, Lorenzo Stoakes
 <lorenzo.stoakes@...cle.com>, Andrew Morton <akpm@...ux-foundation.org>,
 Thomas Gleixner <tglx@...utronix.de>, Nico Pache <npache@...hat.com>,
 Dev Jain <dev.jain@....com>, "Liam R . Howlett" <Liam.Howlett@...cle.com>,
 Jens Axboe <axboe@...nel.dk>
Cc: linux-kernel@...r.kernel.org, willy@...radead.org, linux-mm@...ck.org,
 x86@...nel.org, linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
 "Darrick J . Wong" <djwong@...nel.org>, mcgrof@...nel.org,
 gost.dev@...sung.com, hch@....de, Pankaj Raghav <p.raghav@...sung.com>
Subject: Re: [RFC v2 3/4] mm: add largest_zero_folio() routine

On 01.08.25 06:30, Ritesh Harjani (IBM) wrote:
> "Pankaj Raghav (Samsung)" <kernel@...kajraghav.com> writes:
> 
>> From: Pankaj Raghav <p.raghav@...sung.com>
>>
>> Add largest_zero_folio() routine so that huge_zero_folio can be
> 
> [largest]_zero_folio() can sound a bit confusing with largest in it's
> name. Maybe optimal_zero_folio()?

I prefer largest, it clearly documents what you get.

huge vs large is a different discussion that goes back to "huge pages -> 
huge zero page".

-- 
Cheers,

David / dhildenb