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Tue, 12 May 2026 08:45:11 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id uZmDBpfoAmo7DAAAD6G6ig (envelope-from ); Tue, 12 May 2026 08:45:11 +0000 Date: Tue, 12 May 2026 10:45:09 +0200 From: Oscar Salvador To: "David Hildenbrand (Arm)" Cc: "David S. Miller" , Andreas Larsson , Mike Rapoport , Andrew Morton , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH 0/8] mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1) Message-ID: References: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org> X-Rspam-User: X-Rspamd-Queue-Id: C6EE74000E X-Rspamd-Server: rspam04 X-Stat-Signature: yw983ny6ixhqpzjf9fhfh9qmskispk4q X-HE-Tag: 1778575513-83622 X-HE-Meta: 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 vEQc+GFz pljPJ9qtzCjd2GfUj4Xd7kncnvktWAJnUtdNjt8r7H9MhdkEN+qnveD7n81sHStOmAiIUwIAaNecmqjqKbI1YzVFdvUtHDPaqMWi8a4Uh5og7gpA+Aqm5w9qv1215qK5GvJCsD3TF/A4EOZqEsMT2ruJvS9kEqGAQokWZQV5bPn7gAQJt8tIAx4+ms5mq4GLnHPyhTuCuo5b7WUqkLoQXYU48ziIh9cHLJIqVCbdRbg4hCs1n+rzImfeMtfKzJZMxP8EldkM9/3ECrjtMRb1wbxAFd2XbZgWXksZu5gPxiN056QbGT6Q25jEVZYTqw/wvnLs04n/C2Qe0fXs= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, May 11, 2026 at 04:05:28PM +0200, David Hildenbrand (Arm) wrote: > We want to remove CONFIG_HAVE_BOOTMEM_INFO_NODE. As a first step, > let's limit the remaining harm to x86 and core code, removing > sparc, ppc and s390 leftovers, starting the stepwise removal by removing > and simplifying some code. > > Once a related x86 vmemmap fix [1] is in, we can merge part 2 that will > remove CONFIG_HAVE_BOOTMEM_INFO_NODE entirely. > > Tested on x86-64 with hugetlb vmemmap optimization in combination with > KMEMLEAK, making sure that the problem reported in dd0ff4d12dd2 ("bootmem: > remove the vmemmap pages from kmemleak in put_page_bootmem") does not > reappear -- hoping I managed to trigger the original problem. > > Heavily cross-compiled, but let's let build bots run on it for a bit. > > [1] https://lore.kernel.org/r/20260429-vmemmap-v2-1-8dfcacffd877@kernel.org > > Signed-off-by: David Hildenbrand (Arm) Awesome cleanup David, thanks for doing this ;-) -- Oscar Salvador SUSE Labs