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Peter Anvin" , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Brendan Jackman , Johannes Weiner , Zi Yan , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Muchun Song , Oscar Salvador , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org Subject: Re: [PATCH v2 00/10] mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 2) Message-Id: <20260716170230.643f2f3abf78150ca4528fc6@linux-foundation.org> In-Reply-To: <20260716-bootmem_info_part2-v2-0-4afc76c73d61@kernel.org> References: <20260716-bootmem_info_part2-v2-0-4afc76c73d61@kernel.org> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: C40D940006 X-Stat-Signature: f6rmcwknb57pr8gdpqtpcy8oqy78gg4o X-HE-Tag: 1784246552-327179 X-HE-Meta: U2FsdGVkX1/zLGSAp5/tZH5EP+mXyt3G4f5nudsRh4gClDV3F8qFZ42KGk6YsVC3a1FShQnAYcyxQ6gebfjrJzXMwaoFefKlyak3R8hYMjwVtTIK/wslcHyK11H3D3M8ThRvcrrmMLVTT/KpWj9Ts1HU7+T02XyFjN/9EKd6WNLssHM/f8j3QwV/HquGzt75CfisqVkgqBEibdQaxkuyfmS+24IBQ7ye7Bnb2t/yH4S6u289UxlmWsuG18qfCL8gg+y0u2DLsAsQgxcBZpt4YOsNR/c4lEh5RuuOJcAi/LvcH5NERHm1YC6RztJI3BR27lYUCgy8UErcFCB7HXCK8hT4iNNky4c4GUaFEiLnEwfukCW4X+4opTeFhZPRX5mmSckcguWxbF+7lkhqtMlYmrj20ghqCwZmvpuMSlUHMkq4jICOYWJveIRkkKQZGUI2UNtrjIoitxCJl0+n65Rk9Gu1sClMdBEgrhgpd0SL7IaEMk/j1E+CNMVc1pONOBB43/RdheOLZURQjbz+6AZaK9Y2+wkwr8OsC4buBtbMrb8ivftnHl3mdpj71swQXKyI2wfoo0I+WbzrxdrurL7zJcSo1+M3cj8tqYb4jPQB9+s2TpvPaUKFKgOpO6kNanSLHvf7f23CtvkXQqRzpqvjiYv9CVR79DcSHAKn99ourCwrG5AG6ISpqowjaSQmNIDh5wD2BghD79HBnbVITG7SghzSIbTm53saSzHz6gTC9PjMYFfyBC0zYWNSw1kp6NcxM287TCxY6IyclqH4aSnTsR5nC7z+EIBg4JF0vbTXDz4n90/fUYFs48D4VeLwcA4fRQSHgHh3jkvCqxbSUQH0paRCbhmwJfjMkUBJjOzn03FHdNaC6L4wi9EvxqFbrloJPzuTjdmibcAiuahy5BlxLmRcLB748zqmY2VqHey30zBpWucLw9A/RGcyOavWV+GfYQcP1I5wO1jg+lvqM+n mrAsFdPZ kkCEEe3iXEck7M0j3B4PNF4nCv4ve19Prs3ujlcsQcUCyE2EJ88PVZ1sz5MoqF2JaTx6rDIVHoUq4DMvBLSm+GlbiZHrRe1zl5Hkf9iom7MMPaI5JnjarEnpcHmQvNyM623uXnqDcoNhJRBLSFM2vGIAU8LvYuxALFgKrB+2u+bVA9jxK1zxMRA87fBTbnOtfcvANKR20ZgF7fLjI/c18/XqobgpNoHkYWUVFGg7E7dfpxAIONErFJDcm2qr/O8tYsZrs4WQOscAQeTtnoV0SQJFHj2NSVoxStRsS4Z/OmL33KriYuBgAessLuPjX6IgH3Evs Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 16 Jul 2026 16:50:59 +0200 "David Hildenbrand (Arm)" wrote: > Let's remove the remaining pieces of CONFIG_HAVE_BOOTMEM_INFO_NODE, > performing some smaller cleanups around freeing of reserved vmemmap > pages on the way. > > Tested on x86-64 with hugetlb vmemmap optimization in combination with > KMEMLEAK. Heavily cross-compiled. > Thanks, I updated mm-unstable to this version. > Changes in v2: > - In patch #2, reverse the order of setting the page count and clearing > PG_reserved, and modify the patch description accordingly. Here's how v2 altered mm.git: --- a/mm/page_alloc.c~3 +++ a/mm/page_alloc.c @@ -6410,8 +6410,8 @@ void free_reserved_pages(struct page *pa for (i = 0; i < nr_pages; i++) { clear_page_tag_ref(page + i); - set_page_count(page + i, 0); ClearPageReserved(page + i); + set_page_count(page + i, 0); } adjust_managed_page_count(page, nr_pages); __free_frozen_pages(page, order, FPI_NONE); _