From: Muchun Song <muchun.song@linux.dev>
To: Muchun Song <songmuchun@bytedance.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Oscar Salvador <osalvador@suse.de>,
David Hildenbrand <david@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Vlastimil Babka <vbabka@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>, Michal Hocko <mhocko@suse.com>,
David Laight <david.laight.linux@gmail.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 06/17] mm/mm_init: factor out pfn_to_zone()
Date: Mon, 20 Jul 2026 19:04:35 +0800 [thread overview]
Message-ID: <3E402DBA-58EC-4FA9-B1D6-33DC7185AE19@linux.dev> (raw)
In-Reply-To: <20260720093127.540540-7-songmuchun@bytedance.com>
> On Jul 20, 2026, at 17:31, Muchun Song <songmuchun@bytedance.com> wrote:
>
> pfn_to_zone() in hugetlb_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() and HugeTLB early vmemmap initialization instead
> of open-coding the zone walk there.
Sashiko said "the declaration is actually in mm/mm_init.h". That is indeed
an issue. When I was handling the rebase, I forgot to update the commit
message here due to code conflicts. I will fix this in the next version.
Thanks.
next prev parent reply other threads:[~2026-07-20 11:05 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-20 9:31 [PATCH v2 00/17] mm: Introduce section-based vmemmap optimization for HugeTLB Muchun Song
2026-07-20 9:31 ` [PATCH v2 01/17] mm/sparse: relax struct mem_section size constraints Muchun Song
2026-07-20 9:31 ` [PATCH v2 02/17] mm/sparse-vmemmap: rename HVO order macros Muchun Song
2026-07-30 10:57 ` Mike Rapoport
2026-07-20 9:31 ` [PATCH v2 03/17] mm/mm_init: skip initializing shared vmemmap tail pages Muchun Song
2026-07-26 4:30 ` Muchun Song
2026-07-30 10:48 ` Mike Rapoport
2026-07-30 13:09 ` Muchun Song
2026-07-30 14:32 ` Mike Rapoport
2026-07-20 9:31 ` [PATCH v2 04/17] mm/sparse-vmemmap: initialize shared tail vmemmap pages on allocation Muchun Song
2026-07-20 9:31 ` [PATCH v2 05/17] mm/sparse-vmemmap: support section-based vmemmap accounting Muchun Song
2026-07-20 9:31 ` [PATCH v2 06/17] mm/mm_init: factor out pfn_to_zone() Muchun Song
2026-07-20 11:04 ` Muchun Song [this message]
2026-07-20 11:05 ` Muchun Song
2026-07-30 10:57 ` Mike Rapoport
2026-07-20 9:31 ` [PATCH v2 07/17] mm/sparse-vmemmap: move vmemmap_get_tail() before PTE population Muchun Song
2026-07-20 9:31 ` [PATCH v2 08/17] mm/sparse-vmemmap: support section-based vmemmap optimization Muchun Song
2026-07-20 11:10 ` Muchun Song
2026-07-20 9:31 ` [PATCH v2 09/17] mm/sparse: initialize memory sections earlier Muchun Song
2026-07-20 9:31 ` [PATCH v2 10/17] mm/hugetlb: switch HugeTLB to section-based vmemmap optimization Muchun Song
2026-07-20 9:31 ` [PATCH v2 11/17] mm/sparse-vmemmap: remove SPARSEMEM_VMEMMAP_PREINIT support Muchun Song
2026-07-20 9:31 ` [PATCH v2 12/17] mm/sparse: inline usemap allocation into sparse_init_nid() Muchun Song
2026-07-20 9:31 ` [PATCH v2 13/17] mm/sparse: remove section_map_size() Muchun Song
2026-07-20 9:31 ` [PATCH v2 14/17] mm/hugetlb: remove HUGE_BOOTMEM_HVO Muchun Song
2026-07-20 9:31 ` [PATCH v2 15/17] mm/hugetlb: remove HUGE_BOOTMEM_CMA Muchun Song
2026-07-20 9:31 ` [PATCH v2 16/17] mm/hugetlb: localize struct huge_bootmem_page Muchun Song
2026-07-20 9:31 ` [PATCH v2 17/17] mm/hugetlb: localize HUGE_BOOTMEM_ZONES_VALID Muchun Song
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