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 242E8376BF2 for ; Thu, 10 Sep 2026 23:00:50 +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=1789081251; cv=none; b=M4PMBBi7mrj4255+b9SwPjRmE0JPGJoRw7BkcU/onPDGdlTZl0Mx8qK2GY4J0vwSHM01cv4ilZkN6I07kFyvPe6KDiik3+P8iUOgBHnoHq3S+IL98VczE4dVfQq5qNP5cMzFZoSUE+yC13iafkwXaIPXSGV4fnz8CzlhJRWOPJ0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789081251; c=relaxed/simple; bh=BX3Q+28BpNxvYT4O4qTbayfyrKFaH95b8NkV8SLoWZM=; h=Date:To:From:Subject:Message-Id; b=H1tORHwMdKPHOlZWGp1sNK5zEFI5QEpsIbV2c1jwAdwBQgK6nLkY+BEX05Q987MZs/1e1EXhMtNoN+zS2TSMQGkGNAJNIj2rHgPKdKfEqvTXiUhfNtMkBsp/9MdOUxTPzJhy+pIsaQYgwLw+FYhKCVGWFS4rq+HUHZyhaC7zDqA= 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=lFjxsb+m; 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="lFjxsb+m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EEA9D1F00893; Thu, 10 Sep 2026 23:00:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1789081250; bh=Wgv1Awe1vA8aBSoOFc5fGTIdLJN+rFYv/MAMju+t/RE=; h=Date:To:From:Subject; b=lFjxsb+mqxUImdxYfldHBMEsZSRc/CA5zfL5M9UVbODcI5jXmyz7cXzzvEcbeVOcE i8xspRtJbzrwQuO0GLfs5LLC4hcCM2JCfxmwZpOiIa3+O8AyoXpRuSC+4pGJSyX8X1 HjjIy9EqcZlOfDmEMWv2GoZjma+6T9iEJbl3FoUc= Date: Thu, 10 Sep 2026 16:00:49 -0700 To: mm-commits@vger.kernel.org,songmuchun@bytedance.com,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] mm-sparse-initialize-memory-sections-earlier.patch removed from -mm tree Message-Id: <20260910230049.EEA9D1F00893@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/sparse: initialize memory sections earlier has been removed from the -mm tree. Its filename was mm-sparse-initialize-memory-sections-earlier.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: Muchun Song Subject: mm/sparse: initialize memory sections earlier Date: Tue, 25 Aug 2026 16:46:00 +0800 Upcoming HugeTLB bootmem changes need sparsemem section metadata before the HugeTLB bootmem allocation path runs. The memory sections are initialized from sparse_init(), which is called too late for that setup. Move the code that initializes sparsemem section metadata for memblock ranges into mm_core_init_early(), before free_area_init() and the HugeTLB bootmem setup. Rename the helper to sparse_sections_init() so the new caller describes the sparsemem-specific initialization step. This is a preparatory change. Link: https://lore.kernel.org/20260825084608.47437-10-songmuchun@bytedance.com Signed-off-by: Muchun Song Reviewed-by: Mike Rapoport (Microsoft) Acked-by: Qi Zheng Cc: David Hildenbrand Cc: David Laight Cc: Liam R. Howlett Cc: Lorenzo Stoakes Cc: Michal Hocko Cc: Oscar Salvador Cc: Suren Baghdasaryan Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- mm/mm_init.c | 1 + mm/sparse.c | 10 ++-------- mm/sparse.h | 2 ++ 3 files changed, 5 insertions(+), 8 deletions(-) --- a/mm/mm_init.c~mm-sparse-initialize-memory-sections-earlier +++ a/mm/mm_init.c @@ -2642,6 +2642,7 @@ void __init mm_core_init_early(void) { kho_memory_init_early(); + sparse_sections_init(); free_area_init(); hugetlb_cma_reserve(); --- a/mm/sparse.c~mm-sparse-initialize-memory-sections-earlier +++ a/mm/sparse.c @@ -191,12 +191,8 @@ static void __init memory_present(int ni } } -/* - * Mark all memblocks as present using memory_present(). - * This is a convenience function that is useful to mark all of the systems - * memory as present during initialization. - */ -static void __init memblocks_present(void) +/* Initialize memory section metadata for all system memory. */ +void __init sparse_sections_init(void) { unsigned long start, end; int i, nid; @@ -322,8 +318,6 @@ void __init sparse_init(void) unsigned long pnum_end, pnum_begin, map_count = 1; int nid_begin; - memblocks_present(); - if (compound_info_has_mask()) { VM_WARN_ON_ONCE(!IS_ALIGNED((unsigned long) pfn_to_page(0), MAX_FOLIO_VMEMMAP_ALIGN)); --- a/mm/sparse.h~mm-sparse-initialize-memory-sections-earlier +++ a/mm/sparse.h @@ -59,6 +59,7 @@ static inline bool vmemmap_optimizable_o */ #ifdef CONFIG_SPARSEMEM void sparse_init(void); +void sparse_sections_init(void); int sparse_index_init(unsigned long section_nr, int nid); static inline void sparse_init_one_section(struct mem_section *ms, @@ -104,6 +105,7 @@ static inline bool section_vmemmap_optim } #else static inline void sparse_init(void) {} +static inline void sparse_sections_init(void) {} #endif /* CONFIG_SPARSEMEM */ /* _ Patches currently in -mm which might be from songmuchun@bytedance.com are mm-hugetlb-switch-hugetlb-to-section-based-vmemmap-optimization.patch mm-sparse-vmemmap-remove-sparsemem_vmemmap_preinit-support.patch mm-sparse-inline-usemap-allocation-into-sparse_init_nid.patch mm-sparse-remove-section_map_size.patch mm-hugetlb-remove-huge_bootmem_hvo.patch mm-hugetlb-remove-huge_bootmem_cma.patch mm-hugetlb-localize-struct-huge_bootmem_page.patch mm-hugetlb-localize-huge_bootmem_zones_valid.patch mm-sparse-vmemmap-introduce-config_sparsemem_vmemmap_optimization.patch mm-sparse-vmemmap-factor-out-shared-vmemmap-tail-page-allocation.patch mm-sparse-vmemmap-open-code-init_compound_tail.patch mm-sparse-vmemmap-prepare-dax-vmemmap-population-for-section-orders.patch mm-sparse-vmemmap-set-section-order-for-device-dax.patch mm-sparse-vmemmap-switch-device-dax-to-shared-tail-vmemmap-pages.patch mm-sparse-vmemmap-move-hvo-helpers-to-a-public-header.patch powerpc-mm-switch-device-dax-to-shared-tail-vmemmap-pages.patch mm-sparse-vmemmap-drop-the-extra-tail-page-from-device-dax-reservation.patch mm-sparse-vmemmap-drop-unused-section_nr_vmemmap_pages-arguments.patch documentation-mm-update-dax-vmemmap-deduplication-docs.patch