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 F04DA25333F; Mon, 11 May 2026 14:06:08 +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=1778508369; cv=none; b=GvhFjPc218fgJeQ/Tx+pVkY3GF6DGVtGz5fBnvgZlS8J2BeOoE2/CvN4GrPLsv0mwsPyMn/IIpDj3lajBr+5NDsptOWDTEy1n7szFx00cyCMfSLOGEt3pUO6TQzexgWsTFbPkgWXZdyBUGM3A2f2DjeDXl0Pybyl7thYAXVdqnE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778508369; c=relaxed/simple; bh=Df7YQtlt1u58ew8l6Y3LcE6eBp8Ob9c95zjKPT1feMY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ToiU9+j0IAFjyXqnmEIHvH6+Pi2cJ3SYzl8FP93nbWGl80ZuEKPO+4upe6CciMeMBl0Ywqc9DOw4Z7EY1Ib9e1hdFNITSh9DSYY3v3BT0YPoUbMJ6Mk1qwgRGTriN5XOD4D94x9WBUzPjnci3rY/GvoKyAxkxb4hcMpMzSl6eW0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FkHD5Qko; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FkHD5Qko" 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 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="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 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