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Sat, 10 Oct 2026 04:55:34 -0700 (PDT) Received: from n232-176-004.byted.org ([36.110.163.103]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ab36ed040dsm9813293a91.6.2026.10.10.04.55.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Oct 2026 04:55:33 -0700 (PDT) From: Muchun Song To: Andrew Morton Cc: Madhavan Srinivasan , Mike Rapoport , David Hildenbrand , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Ritesh Harjani , Shrikanth Hegde , Lorenzo Stoakes , "Liam R . Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , Qi Zheng , Lance Yang , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Muchun Song , muchun.song@linux.dev Subject: [PATCH] fixup! mm/mm_init: add zone mismatch warning during page init Date: Sat, 10 Oct 2026 19:55:23 +0800 Message-ID: <20261010115523.4005071-1-songmuchun@bytedance.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20261010075755.83339-7-songmuchun@bytedance.com> References: <20261010075755.83339-7-songmuchun@bytedance.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Document the ordering of shared and retained struct page initialization. Signed-off-by: Muchun Song --- mm/mm_init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mm/mm_init.c b/mm/mm_init.c index 6deae33db882..4c17a892924d 100644 --- a/mm/mm_init.c +++ b/mm/mm_init.c @@ -618,6 +618,10 @@ void __meminit __init_single_page(struct page *page, unsigned long pfn, if (!is_highmem_idx(zone)) set_page_address(page, __va(pfn << PAGE_SHIFT)); #endif + /* + * Shared tail struct pages are initialized during vmemmap population, + * before retained struct pages reach here. + */ vmemmap_optimization_verify_zone(page); } -- 2.54.0