From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 0E3DA179BD for ; Tue, 4 Mar 2025 02:48:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741056523; cv=none; b=pI8j++v86oDvDfYsgyjEDanqOROOG7hr6s87tVuvSctAJ5S8kwb+lUUiLdRqffHe5LLl+ec/Z7vgl/cHWr/yZKwJrRIZuL+9NoypRKYaKlXM/a8e9QC3aZfp4Brm76VOZccQkOup5nYt9mt0A8BiaSzxFdlFymwFMqxTTtt6jww= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741056523; c=relaxed/simple; bh=cn7Pv5lHHsK21BBycatTSjPnSopUHpAPpoQnIyxiUz8=; h=Date:To:From:Subject:Message-Id; b=YZrFQegKIMxJU64gXg/7oxtF4MR/EWpZIEw5hyKwXjuEjtwQLYuMNxDoCHaKCLXE3GUswmAM2+hz37nP3xvP/O7ZKFQKGr7zymyK8C1A5K9Z0sNsv7XY8Sg1IdJBD8WlXuSArmWeXXGitp1iQlHPXYUJ4v1R+vXKcJIRX5hyweQ= 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=wcf203Yc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="wcf203Yc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C65E6C4CEE4; Tue, 4 Mar 2025 02:48:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1741056522; bh=cn7Pv5lHHsK21BBycatTSjPnSopUHpAPpoQnIyxiUz8=; h=Date:To:From:Subject:From; b=wcf203Yco/YbcdT9KTV61GqwDyJjv+/ObmXHe3N3r9l2FZBaFiLkD+zdju5EodSA3 6MTF0eI02pq8AZ5+F9yEJcsTyBXNIQptQLUpjxG2hOC3Sdn42Kehi2fUIyTv4dQdDw BAhNhUVOxrNzAW8vkE+yUdZTRqIV3ojwV7Gp2d2I= Date: Mon, 03 Mar 2025 18:48:40 -0800 To: mm-commits@vger.kernel.org,ziy@nvidia.com,yuzhao@google.com,usamaarif642@gmail.com,roman.gushchin@linux.dev,peterz@infradead.org,osalvador@suse.de,muchun.song@linux.dev,mpe@ellerman.id.au,maddy@linux.ibm.com,luto@kernel.org,joao.m.martins@oracle.com,hca@linux.ibm.com,hannes@cmpxchg.org,gor@linux.ibm.com,david@redhat.com,dave.hansen@linux.intel.com,dan.carpenter@linaro.org,arnd@arndb.de,agordeev@linux.ibm.com,fvdl@google.com,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-hugetlb-use-cma_declare_contiguous_multi.patch added to mm-unstable branch Message-Id: <20250304024842.C65E6C4CEE4@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm, hugetlb: use cma_declare_contiguous_multi has been added to the -mm mm-unstable branch. Its filename is mm-hugetlb-use-cma_declare_contiguous_multi.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb-use-cma_declare_contiguous_multi.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Frank van der Linden Subject: mm, hugetlb: use cma_declare_contiguous_multi Date: Fri, 28 Feb 2025 18:29:05 +0000 hugetlb_cma is fine with using multiple CMA ranges, as long as it can get its gigantic pages allocated from them. So, use cma_declare_contiguous_multi to allow for multiple ranges, increasing the chances of getting what we want on systems with gaps in physical memory. Link: https://lkml.kernel.org/r/20250228182928.2645936-5-fvdl@google.com Signed-off-by: Frank van der Linden Cc: Alexander Gordeev Cc: Andy Lutomirski Cc: Arnd Bergmann Cc: Dan Carpenter Cc: Dave Hansen Cc: David Hildenbrand Cc: Heiko Carstens Cc: Joao Martins Cc: Johannes Weiner Cc: Madhavan Srinivasan Cc: Michael Ellerman Cc: Muchun Song Cc: Oscar Salvador Cc: Peter Zijlstra Cc: Roman Gushchin (Cruise) Cc: Usama Arif Cc: Vasily Gorbik Cc: Yu Zhao Cc: Zi Yan Signed-off-by: Andrew Morton --- mm/hugetlb.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/mm/hugetlb.c~mm-hugetlb-use-cma_declare_contiguous_multi +++ a/mm/hugetlb.c @@ -7746,9 +7746,8 @@ void __init hugetlb_cma_reserve(int orde * may be returned to CMA allocator in the case of * huge page demotion. */ - res = cma_declare_contiguous_nid(0, size, 0, - PAGE_SIZE << order, - HUGETLB_PAGE_ORDER, false, name, + res = cma_declare_contiguous_multi(size, PAGE_SIZE << order, + HUGETLB_PAGE_ORDER, name, &hugetlb_cma[nid], nid); if (res) { pr_warn("hugetlb_cma: reservation failed: err %d, node %d", _ Patches currently in -mm which might be from fvdl@google.com are mm-cma-export-total-and-free-number-of-pages-for-cma-areas.patch mm-cma-support-multiple-contiguous-ranges-if-requested.patch mm-cma-introduce-cma_intersects-function.patch mm-hugetlb-use-cma_declare_contiguous_multi.patch mm-hugetlb-remove-redundant-__clearpagereserved.patch mm-hugetlb-use-online-nodes-for-bootmem-allocation.patch mm-hugetlb-convert-cmdline-parameters-from-setup-to-early.patch x86-mm-make-register_page_bootmem_memmap-handle-pte-mappings.patch mm-bootmem_info-export-register_page_bootmem_memmap.patch mm-sparse-allow-for-alternate-vmemmap-section-init-at-boot.patch mm-hugetlb-set-migratetype-for-bootmem-folios.patch mm-define-__init_reserved_page_zone-function.patch mm-hugetlb-check-bootmem-pages-for-zone-intersections.patch mm-sparse-add-vmemmap__hvo-functions.patch mm-hugetlb-deal-with-multiple-calls-to-hugetlb_bootmem_alloc.patch mm-hugetlb-move-huge_boot_pages-list-init-to-hugetlb_bootmem_alloc.patch mm-hugetlb-add-pre-hvo-framework.patch mm-hugetlb_vmemmap-fix-hugetlb_vmemmap_restore_folios-definition.patch mm-hugetlb-do-pre-hvo-for-bootmem-allocated-pages.patch x86-setup-call-hugetlb_bootmem_alloc-early.patch x86-mm-set-arch_want_hugetlb_vmemmap_preinit.patch mm-cma-simplify-zone-intersection-check.patch mm-cma-introduce-a-cma-validate-function.patch mm-cma-introduce-interface-for-early-reservations.patch mm-hugetlb-add-hugetlb_cma_only-cmdline-option.patch mm-hugetlb-enable-bootmem-allocation-from-cma-areas.patch mm-hugetlb-move-hugetlb-cma-code-in-to-its-own-file.patch