linux-kernel - Re: [PATCH v3 1/2] mm/huge_memory: move unrelated code out of __split_unmapped

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Message-ID: <75a36754-ec7d-40f1-8866-90ea2a415d13@lucifer.local>
Date: Thu, 17 Jul 2025 19:07:06 +0100
From: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
To: Zi Yan <ziy@...dia.com>
Cc: Balbir Singh <balbirs@...dia.com>, David Hildenbrand <david@...hat.com>,
        linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        Hugh Dickins <hughd@...gle.com>,
        Kirill Shutemov <k.shutemov@...il.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        "Liam R. Howlett" <Liam.Howlett@...cle.com>,
        Nico Pache <npache@...hat.com>, Ryan Roberts <ryan.roberts@....com>,
        Dev Jain <dev.jain@....com>, Barry Song <baohua@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] mm/huge_memory: move unrelated code out of
 __split_unmapped_folio()

On Thu, Jul 17, 2025 at 02:05:06PM -0400, Zi Yan wrote:
> Yeah, I meant to fill this up after going through your comments below.
> The plan is:
>
> 1. Just move code from __split_unmapped_folio() to __folio_split().
> 2. one patch to remove after_split label
> 3. one patch to move fail label and related code
> 4. one patch to refactor remap_page() flag
> 5. one patch to convert VM_BUG* to VM_WARM*, three instances.
> 6. use folio_expected_ref_count() patch
> 7. mm/huge_memory: refactor after-split (page) cache code.
>
> Maybe 2, 3, 4 can be squashed into a single refactor patch?
>
> Best Regards,
> Yan, Zi

Will leave to your discretion as to how best to structure :)

Cheers, Lorenzo