From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E903ACD484A for ; Mon, 11 May 2026 14:06:11 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5C1016B00CE; Mon, 11 May 2026 10:06:11 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 598E76B00D0; Mon, 11 May 2026 10:06:11 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4D57C6B00D1; Mon, 11 May 2026 10:06:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 3AFE86B00CE for ; Mon, 11 May 2026 10:06:11 -0400 (EDT) Received: from smtpin19.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay08.hostedemail.com (Postfix) with ESMTP id DFA9314015D for ; Mon, 11 May 2026 14:06:10 +0000 (UTC) X-FDA: 84755313300.19.3E75AA6 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf10.hostedemail.com (Postfix) with ESMTP id 2EFC3C0004 for ; Mon, 11 May 2026 14:06:08 +0000 (UTC) Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=FkHD5Qko; spf=pass (imf10.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1778508369; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=2mKTc398hqCNIyVV1mxRFzypz9k5PW9K0UCO/3rhqKk=; b=SdzVrutfNwOrGBaNTstXiLKljlM8hHlymFiE2eK/UWu3MLtKk6MP8Yxy+UDEjIyVfk2Nr/ nA2Euxi7alaGtHBCkD1ox6BWN8AGXuDcWf/Ri92yCa6+/+8eOaahmf4JbNy5OS9S6BFxZ8 ZC8nv5+i+anFiWxaaMP15Z9rhmFK1fQ= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=FkHD5Qko; spf=pass (imf10.hostedemail.com: domain of david@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=david@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1778508369; a=rsa-sha256; cv=none; b=0ykhiCtdlULXNHyhs9kjv3i/Cx10xzuwsp+6y7qeXqAYtf9AtMzbMiD/T6YJmgFoXk32Rx aDQMVMXZeDv5bjmZ27N0acyUCCO1hJltAdiIb9wqDOEY55gUn8hhhgIxyL/ASP+wFUJxQe ZwDVwHPZMZ9GKdUg16r3cQfQcIX72gk= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 9971560138; Mon, 11 May 2026 14:06:08 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3134C2BCB0; Mon, 11 May 2026 14:06:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778508368; bh=Df7YQtlt1u58ew8l6Y3LcE6eBp8Ob9c95zjKPT1feMY=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=FkHD5QkoYoiTQo6rsfptPtJyyjVmT203uCGrdm3RY3TRoKsGoRzuEBRzTLOM/MoDg MayWcxnF91mKM6xXDqXD9sGLU9DDrFF/Wd0FcMZBhsbYliBwps+T+lJ6mRl4OaaReO AlharA0hbNn+y6DBkFP+QQAyvIrUPUFzFmpPv9Aeut02HsJDMZ8DCG5+AYe4QiH1Jo 8RHEPoYqRTLWsqkE6/OR/o79ST9ZtLIw1kKnllAjVgvLKKr3BbYRA+dtRv8sj5b0ws pNwKalE2Qqrlt/eCvy2KefMfl81e24Y17AgpykKyxL2jc/Kn4MflcxXJ6feg6RoApD oitkf0c1mdkoQ== From: "David Hildenbrand (Arm)" Date: Mon, 11 May 2026 16:05:34 +0200 Subject: [PATCH 6/8] mm/bootmem_info: stop marking mem_section_usage as MIX_SECTION_INFO MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260511-bootmem_info_prep-v1-6-3fb0be6fc688@kernel.org> References: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org> In-Reply-To: <20260511-bootmem_info_prep-v1-0-3fb0be6fc688@kernel.org> To: "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 Cc: sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "David Hildenbrand (Arm)" X-Mailer: b4 0.13.0 X-Stat-Signature: sne97jciziw33nd943g8edazz89c957g X-Rspamd-Queue-Id: 2EFC3C0004 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1778508368-918315 X-HE-Meta: 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 0xNq7rn6 9X2RbCLwrSRgX/515pgU/8BO7raFdDOqmhfRbSQ1ecJPjRIJ2itEozfSSz2ZRrbcYT/qlMaQOGKYEHCcTRtwzM/wMshbed9wyTyceyacRptqh235Wgls+/AKKjNmBiKr/X/3CHHcVjSCrihjK9QHZ5HW/cW7Bv3Z+HntRduhntFlgkFcLfsGaduKcMZOzK0VfoEBDzJBfL6aiFdpRM9JuLLB0C1/e6CYVoM7LiKcTukITSdp9tpUNm4fb2MPqSOWLh4L40mhY+JQCt9OPyFb/ohoYSuKCMljVIN2y Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: We never free the ms->usage data for boot memory sections (see section_deactivate()). And to identify whether ms->usage was allocated from memblock, we simply identify it by looking at PG_reserved. Consequently, there is no need to mark ms->usage as MIX_SECTION_INFO. Let's just stop doing that. Signed-off-by: David Hildenbrand (Arm) --- mm/bootmem_info.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) diff --git a/mm/bootmem_info.c b/mm/bootmem_info.c index cce1d560f094..0fa78db7fbc0 100644 --- a/mm/bootmem_info.c +++ b/mm/bootmem_info.c @@ -38,10 +38,8 @@ void put_page_bootmem(struct page *page) static void __init register_page_bootmem_info_section(unsigned long start_pfn) { - unsigned long mapsize, section_nr, i; + unsigned long section_nr; struct mem_section *ms; - struct mem_section_usage *usage; - struct page *page; start_pfn = SECTION_ALIGN_DOWN(start_pfn); section_nr = pfn_to_section_nr(start_pfn); @@ -50,14 +48,6 @@ static void __init register_page_bootmem_info_section(unsigned long start_pfn) if (!preinited_vmemmap_section(ms)) register_page_bootmem_memmap(section_nr, pfn_to_page(start_pfn), PAGES_PER_SECTION); - - usage = ms->usage; - page = virt_to_page(usage); - - mapsize = PAGE_ALIGN(mem_section_usage_size()) >> PAGE_SHIFT; - - for (i = 0; i < mapsize; i++, page++) - get_page_bootmem(section_nr, page, MIX_SECTION_INFO); } void __init register_page_bootmem_info_node(struct pglist_data *pgdat) -- 2.43.0