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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> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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-Spam-Level: X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[99.99%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCPT_COUNT_TWELVE(0.00)[25]; MIME_TRACE(0.00)[0:+]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; FREEMAIL_ENVRCPT(0.00)[gmail.com]; RCVD_TLS_ALL(0.00)[]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_CC(0.00)[davemloft.net,gaisler.com,kernel.org,linux-foundation.org,linux.ibm.com,ellerman.id.au,gmail.com,infradead.org,google.com,suse.com,vger.kernel.org,kvack.org,lists.ozlabs.org]; RCVD_COUNT_TWO(0.00)[2]; MISSING_XM_UA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,localhost.localdomain:mid] X-Spam-Flag: NO X-Spam-Score: -4.30 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