From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta0.migadu.com (out-173.mta0.migadu.com [91.218.175.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F0F93D7A07 for ; Tue, 25 Aug 2026 13:29:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787664548; cv=none; b=AoQWKFltSjz6KE+msEm3ewaK4ozyW0H3115VPCdFZ7VtyvBhJ9DSuaBwVcViE1anMt0zpwWbiU6zYUfDQqd3oaMS0/xQXzHAFVh44B2BYooWc+DaS9sF6/higX/ji8DiYdtt3yRq/cGWUjU10E2mYmqdgu9/Y5S5i0jX7aKweBo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787664548; c=relaxed/simple; bh=mfo3xCBtOpxdGVu2sNydgSqe8WKhZsunZj3l9KvjYH0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HsTbQcDSWecEUMQ4HOF2xZ9dNJv4Zi0sHyixL96ONdfBOmcfBt4mwBcp4kSVpQFlYBhpsZyubHP+VBsb26kE2gdzGJpFN/FEZvnLIvn9haoFK8f6g0fR8f6Qbpg35S/2OF800QoVi8AEhuTOsoJHM2cWFragCLciK6+oRQeP60Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Ma4a+wDO; arc=none smtp.client-ip=91.218.175.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Ma4a+wDO" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=mfo3xCBtOpxdGVu2sNydgSqe8WKhZsunZj3l9KvjYH0=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1787664544; v=1; x=1788269344; b=Ma4a+wDOOOpV6bub7yRGrAB4Lm88lnbwQMFnSQln1J93NHwRi99k4t7dePcY4goJMw8K8Dkx rQ07ZiBZ2judWhqVFzm0GwITXfju1H7DDM9/SH4hjLVZckb+Ctzvqn5TKhPtgW1UdWdqxYqKsjZ GSZTWpgIUQ2VQ8P3EA+H7cvE= X-Envelope-To: linux-kernel@vger.kernel.org Received: from [10.254.116.35] (101.126.56.83) by smtp.migadu.com with ESMTPS id f5151641734efe10; Tue, 25 Aug 2026 13:28:54 +0000 X-Mizu-Trace-ID: f5151641734efe10 X-Migadu-Flow: FLOW_OUT Message-ID: <3e4e6840-e7a4-404b-84b0-5d4bb79d64d0@linux.dev> Date: Tue, 25 Aug 2026 21:28:41 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 14/17] mm/hugetlb: remove HUGE_BOOTMEM_HVO To: Muchun Song , Andrew Morton , Oscar Salvador , David Hildenbrand Cc: Mike Rapoport , Vlastimil Babka , Lorenzo Stoakes , Michal Hocko , David Laight , "Liam R . Howlett" , Suren Baghdasaryan , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Muchun Song References: <20260825084608.47437-1-songmuchun@bytedance.com> <20260825084608.47437-15-songmuchun@bytedance.com> From: Qi Zheng In-Reply-To: <20260825084608.47437-15-songmuchun@bytedance.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 8/25/26 4:46 PM, Muchun Song wrote: > The HUGE_BOOTMEM_HVO flag tracked whether a bootmem huge page had > already gone through the old early vmemmap optimization path. > > Now that HugeTLB uses section-based vmemmap optimization, that state is > already reflected in the section order. > > Remove HUGE_BOOTMEM_HVO and its helper, and use the section state > directly when deciding whether to mark a folio as vmemmap-optimized. > > Signed-off-by: Muchun Song > Acked-by: Mike Rapoport (Microsoft) > --- > v3: > - Use the order-based helper for the bootmem vmemmap-optimized check > > v2: > - Collect Acked-by from Mike Rapoport > --- > include/linux/hugetlb.h | 5 ++--- > mm/hugetlb.c | 12 +----------- > mm/hugetlb_vmemmap.c | 2 -- > 3 files changed, 3 insertions(+), 16 deletions(-) Acked-by: Qi Zheng Thanks, Qi