From: Muchun Song <muchun.song@linux.dev>
To: Mike Rapoport <rppt@kernel.org>
Cc: Muchun Song <songmuchun@bytedance.com>,
Andrew Morton <akpm@linux-foundation.org>,
Oscar Salvador <osalvador@suse.de>,
David Hildenbrand <david@kernel.org>,
linux-mm@kvack.org, Vlastimil Babka <vbabka@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>, Michal Hocko <mhocko@suse.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 10/17] mm/mm_init: factor out pfn_to_zone()
Date: Thu, 16 Jul 2026 15:18:35 +0800 [thread overview]
Message-ID: <CAE30964-C57E-4B28-B1C4-C9766CAF2091@linux.dev> (raw)
In-Reply-To: <178409212285.638342.15278486348627006171.b4-review@b4>
> On Jul 15, 2026, at 13:08, Mike Rapoport <rppt@kernel.org> wrote:
>
>> pfn_to_zone() in sparse-vmemmap.c duplicates the zone lookup logic in
>> __init_deferred_page().
>>
>> Move it to mm_init.c, declare it in mm/internal.h, and reuse it from
>> __init_deferred_page() instead of open-coding the zone walk there.
>
> Heh, this should be a preparatory patch instead of duplicating
> pfn_to_zone in sparse-vmemmap in an earlier patch ;-)
Make sense. I'll adjust the patch order to introduce pfn_to_zone() before
patch 7.
Muchun,
Thanks.
>
> --
> Sincerely yours,
> Mike.
>
next prev parent reply other threads:[~2026-07-16 7:18 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-02 9:38 [PATCH 00/17] mm: Introduce section-based vmemmap optimization for HugeTLB Muchun Song
2026-07-02 9:38 ` [PATCH 01/17] mm/sparse: drop power-of-2 size requirement for struct mem_section Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-15 9:34 ` David Laight
2026-07-15 13:15 ` Muchun Song
2026-07-15 15:52 ` David Laight
2026-07-16 6:51 ` Muchun Song
2026-07-02 9:38 ` [PATCH 02/17] mm/sparse-vmemmap: track compound page order in " Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-15 6:42 ` Muchun Song
2026-07-15 9:45 ` Mike Rapoport
2026-07-16 9:15 ` David Laight
2026-07-16 10:57 ` Muchun Song
2026-07-02 9:38 ` [PATCH 03/17] mm/sparse-vmemmap: introduce folio-oriented vmemmap optimization macros Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-16 7:38 ` Muchun Song
2026-07-16 10:04 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 04/17] mm/mm_init: skip initializing shared vmemmap tail pages Muchun Song
2026-07-09 10:45 ` Mike Rapoport
2026-07-09 12:31 ` Muchun Song
2026-07-09 13:05 ` Mike Rapoport
2026-07-09 13:23 ` Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-15 9:11 ` Muchun Song
2026-07-15 9:47 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 05/17] mm/sparse-vmemmap: initialize shared tail vmemmap pages on allocation Muchun Song
2026-07-02 9:38 ` [PATCH 06/17] mm/sparse-vmemmap: support section-based vmemmap accounting Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-15 14:44 ` Muchun Song
2026-07-16 6:23 ` Mike Rapoport
2026-07-16 6:48 ` Muchun Song
2026-07-02 9:38 ` [PATCH 07/17] mm/sparse-vmemmap: support section-based vmemmap optimization Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-16 7:19 ` Muchun Song
2026-07-02 9:38 ` [PATCH 08/17] mm/sparse: mark memory sections present earlier Muchun Song
2026-07-09 10:54 ` Mike Rapoport
2026-07-09 12:35 ` Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-16 7:15 ` Muchun Song
2026-07-02 9:38 ` [PATCH 09/17] mm/hugetlb: switch HugeTLB to section-based vmemmap optimization Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 10/17] mm/mm_init: factor out pfn_to_zone() Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-16 7:18 ` Muchun Song [this message]
2026-07-02 9:38 ` [PATCH 11/17] mm/sparse-vmemmap: remove SPARSEMEM_VMEMMAP_PREINIT support Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 12/17] mm/sparse: inline usemap allocation into sparse_init_nid() Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 13/17] mm/sparse: remove section_map_size() Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 14/17] mm/hugetlb: remove HUGE_BOOTMEM_HVO Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 15/17] mm/hugetlb: remove HUGE_BOOTMEM_CMA Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 16/17] mm/hugetlb: localize struct huge_bootmem_page Muchun Song
2026-07-15 5:08 ` Mike Rapoport
2026-07-02 9:38 ` [PATCH 17/17] mm/hugetlb: localize HUGE_BOOTMEM_ZONES_VALID Muchun Song
2026-07-15 5:08 ` Mike Rapoport
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