From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1E42334214A for ; Tue, 4 Aug 2026 17:53:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785866034; cv=none; b=Je7ppj7FHu3TVQ3rSN4hib9xjko8Rvl5fJfhQegKrKiCd9CgJyy0DUL26PL7m1SoS2FDrYm0K2G9hVo2IxZ8sx/KaDYlQMleRJZ778E2WnkP0+DsGOhq/drLRS2kau4hZ00O/iWmnfiUTR0hZHruHO862JILGfesbnFxo0ftscc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785866034; c=relaxed/simple; bh=eamI+9McU2W2vcI1L+FYrb7vP3ZETJrGFpWrzhQrH2I=; h=Date:To:From:Subject:Message-Id; b=tuVOCFAlZ9u6BfPQIklttIMKDhxri8EtlhQQrwCHmHyZvpa5lNnLPsyszf7NtCEvt8rBeC211g5EXyXX0q9nFg44vsINDVv2zhBBZWNUra+q0r7W0XxlnW/evqA5u0lB6wle54ee76i6x2NoZk1mPMt8ew6rIlSwEX1QOJOuC3A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=CM2uUdoW; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="CM2uUdoW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 92FA91F000E9; Tue, 4 Aug 2026 17:53:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1785866032; bh=X4So+rwSwrkjhHV+tjJKKvHJa0rkq3EAXba0y7VO884=; h=Date:To:From:Subject; b=CM2uUdoWk0SOrNGvIYYoNPatrNxezBaE1wtFdC9OJ1OuoSXcw1SIp4lvQk85ItlX3 kjp1/NghiiabsnFlQjxLhtK4RkALSALy29yy0xh2plx7xZiI05xbaM1QIiyhTlgGl5 f87klfBnqIHu4IwailqM4LLHGsXmZb9XnIPPOyms= Date: Tue, 04 Aug 2026 10:53:52 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,vbabka@kernel.org,surenb@google.com,rppt@kernel.org,mhocko@suse.com,ljs@kernel.org,liam@infradead.org,hannes@cmpxchg.org,david@kernel.org,ekffu200098@gmail.com,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-kconfig-make-flatmem-depend-on-numa.patch added to mm-new branch Message-Id: <20260804175352.92FA91F000E9@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm/Kconfig: make FLATMEM depend on !NUMA has been added to the -mm mm-new branch. Its filename is mm-kconfig-make-flatmem-depend-on-numa.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-kconfig-make-flatmem-depend-on-numa.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Sang-Heon Jeon Subject: mm/Kconfig: make FLATMEM depend on !NUMA Date: Wed, 5 Aug 2026 00:11:41 +0900 Patch series "mm/page_ext: remove pgdat_page_ext_init()", v2. pgdat_page_ext_init() has no effect on FLATMEM. The pgdat is always the zero-initialized contig_page_data, because no architecture supports FLATMEM + NUMA. That constraint is only implicit in the arch Kconfig files. So patch 1 makes it explicit in mm/Kconfig, and patch 2 removes pgdat_page_ext_init(). No functional change. This patch (of 2): FLATMEM + NUMA is not supported by any architecture and fails to build. The constraint is only implicit in the arch Kconfig files. So make it explicit in mm/Kconfig. No functional change. Link: https://lore.kernel.org/20260804151145.3419768-1-ekffu200098@gmail.com Link: https://lore.kernel.org/20260804151145.3419768-2-ekffu200098@gmail.com Signed-off-by: Sang-Heon Jeon Suggested-by: Zi Yan Acked-by: Zi Yan Cc: David Hildenbrand Cc: Johannes Weiner Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Mike Rapoport Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- mm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) --- a/mm/Kconfig~mm-kconfig-make-flatmem-depend-on-numa +++ a/mm/Kconfig @@ -390,6 +390,7 @@ choice config FLATMEM_MANUAL bool "Flat Memory" + depends on !NUMA depends on !ARCH_SPARSEMEM_ENABLE || ARCH_FLATMEM_ENABLE help This option is best suited for non-NUMA systems with @@ -424,6 +425,7 @@ config SPARSEMEM config FLATMEM def_bool y + depends on !NUMA depends on !SPARSEMEM || FLATMEM_MANUAL # _ Patches currently in -mm which might be from ekffu200098@gmail.com are mm-early_ioremap-clarify-early_ioremap_reset-semantics.patch riscv-remove-unused-__late_set_fixmap-and-__late_clear_fixmap.patch arm64-remove-early_ioremap_reset-call-and-__late_-macros.patch mm-sparse-correct-init-section-annotations.patch mm-kconfig-make-flatmem-depend-on-numa.patch mm-page_ext-remove-pgdat_page_ext_init.patch