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From: Muchun Song In-Reply-To: <20260720093127.540540-7-songmuchun@bytedance.com> Date: Mon, 20 Jul 2026 19:05:36 +0800 Cc: Andrew Morton , Oscar Salvador , David Hildenbrand , Mike Rapoport , Vlastimil Babka , Lorenzo Stoakes , Michal Hocko , David Laight , linux-mm@kvack.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: 7bit Message-Id: References: <20260720093127.540540-1-songmuchun@bytedance.com> <20260720093127.540540-7-songmuchun@bytedance.com> To: Muchun Song X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: BE5AE4000B X-Stat-Signature: hue537jgietj7zx55h7pussqb1aowg99 X-Rspam-User: X-HE-Tag: 1784545552-385858 X-HE-Meta: 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 b++t1G04 +AMvBxw9ugjNLoFGyHLRmovQPD/+UNukAN/2Ch+A4XksVt45CkL4ZezV77DQCrUpC4QPQWynQebrUBc8qTWhWB1WwccGJ3/GB4Zdjxn4+GmNYnSyPT4DnNNEZT8e0CcfG2fnXVvZbWgLFJPsIcXgIFqlTl2JEq/yJ9/DvTK2tmBnKAoev0z8Ey6Kq0bVHpRFSJKP2oZU0S0UbqVa6asn6scqsdOTmD/5lmK0Ty/rFKjqxVrcLrPpc+kcHCikeb/StDtIWE6n3eENR8Bwcvae0iWC0UgGzc8Vrvp3/F37Boqy8KRFQt9VJWb+5HmEj0PGzOtzqe1TZV8hGz/Q+wqeWWlLQZW0/2ugSKFMQIkIvVav7hJnTc0m+YlRR+hxNLp3gAZeu Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > On Jul 20, 2026, at 17:31, Muchun Song 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 commit message states that pfn_to_zone() is declared in mm/internal.h, but the patch actually adds the declaration to mm/mm_init.h instead". 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.