Re: [PATCH 0/5] add STATIC_PMD_ZERO_PAGE config option

To: Pankaj Raghav <p.raghav@xxxxxxxxxxx>
Subject: Re: [PATCH 0/5] add STATIC_PMD_ZERO_PAGE config option
From: Christoph Hellwig <hch@xxxxxx>
Date: Mon, 16 Jun 2025 07:40:34 +0200
Cc: Suren Baghdasaryan <surenb@xxxxxxxxxx>, Ryan Roberts <ryan.roberts@xxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Nico Pache <npache@xxxxxxxxxx>, Dev Jain <dev.jain@xxxxxxx>, Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>, Borislav Petkov <bp@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, "H . Peter Anvin" <hpa@xxxxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, Zi Yan <ziy@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, David Hildenbrand <david@xxxxxxxxxx>, Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, "Liam R . Howlett" <Liam.Howlett@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, willy@xxxxxxxxxxxxx, x86@xxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, "Darrick J . Wong" <djwong@xxxxxxxxxx>, mcgrof@xxxxxxxxxx, gost.dev@xxxxxxxxxxx, kernel@xxxxxxxxxxxxxxxx, hch@xxxxxx
In-reply-to: <20250612105100.59144-1-p.raghav@samsung.com>
User-agent: Mutt/1.5.17 (2007-11-01)

Just curious: why doesn't this series get rid of the iomap zero_page,
which would be really low hanging fruit?

Follow-Ups:
- Re: [PATCH 0/5] add STATIC_PMD_ZERO_PAGE config option
  - From: Pankaj Raghav

References:
- [PATCH 0/5] add STATIC_PMD_ZERO_PAGE config option
  - From: Pankaj Raghav