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 96FB846A5F2; Tue, 18 Aug 2026 18:13:59 +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=1787076840; cv=none; b=kJ1QQiJpfErUuGObMiRz6U/opkw5Z4WrIZYhftsma04xUBFwGrhCJ8e4ccruWhXMQAQvEq74aW+/IDkcNeC07hEqiof4M1NX79RjI9dU2EONzkc70XNmm3QMxy7ryecVqPaeiSbvB5AEkfdJ0ITGiSezEK0xHZ+bS4vdzdN5ZwE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787076840; c=relaxed/simple; bh=yMLrmdwXeHUgaFH2K6lvC5bUq9/5Cuaow9mOoprwegQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WqNd6CHFzNDi4JQ004N/vub12/1XMj9WRYIMrA6nLuq+lJKhSf/fXELUMU0MqGNSXI/DxqjBzW6ssOrW/dxKqG25GniaS798QUBSxwvj/iwVoVN3+kpK43QKbIILmpkkhYEceAX1bU/G8NOkoPkHJmYmGc0a/MwTj+QCa47xTCo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TKWBXLyN; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TKWBXLyN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9FC0F1F00A3A; Tue, 18 Aug 2026 18:13:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787076839; bh=6urx/Pmc2TVqY78ox2ByVeVGQ7i5RyjHUlIMni2Wy24=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=TKWBXLyNCdFchULyM4e6Qnn0+fNTSqbcC4mqTMW//aMh/p21/6Ly0aql6Fda4s4xp HvZz3Gzt32dxhVEwYxwARMuSBHQHXGfzMRvaYlrh0cywJg+pNkv5sf26/QFhSlvm7q b8jc6mMNUjb+i7C2/tLepIXyrFk9Srb2fc/GD7slcCnwcg7qs8BwJr0PQ/KcCGxqiA vEq6mMT4B1eKUpL2jd0W6OaqwR6imJDEeYlDD8t1ipMLgZAeuTxmJeVsuBM6sE3BBx aAXBUDXf4L5c5VXyAvVxm58UULRPAohQ/RD4KHZV8vG3WNoS7w2rhe3HryL6C4AKtn z4aMShcnqUZGQ== Message-ID: Date: Tue, 18 Aug 2026 20:13:47 +0200 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: [RFC PATCH 01/57] mm: add pte_folio() To: Rik van Riel , Kiryl Shutsemau , akpm@linux-foundation.org, ljs@kernel.org, nico.pache@linux.dev Cc: baolin.wang@linux.alibaba.com, baohua@kernel.org, dev.jain@arm.com, hughd@google.com, lance.yang@linux.dev, liam@infradead.org, mhocko@suse.com, rppt@kernel.org, ryan.roberts@arm.com, shuah@kernel.org, surenb@google.com, usama.arif@linux.dev, vbabka@kernel.org, ziy@nvidia.com, usama.anjum@arm.com, agordeev@linux.ibm.com, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, kas@kernel.org, jannh@google.com, willy@infradead.org, pfalcato@suse.de, rostedt@goodmis.org, mhiramat@kernel.org, linux-trace-kernel@vger.kernel.org, bpf@vger.kernel.org References: <20260816224609.308019-1-kirill@shutemov.name> <20260816224609.308019-2-kirill@shutemov.name> <905d08d102e56a026a5ad69573c507d2d9becc37.camel@surriel.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/18/26 18:38, Rik van Riel wrote: > On Sun, 2026-08-16 at 23:45 +0100, Kiryl Shutsemau wrote: >> From: "Kiryl Shutsemau (Meta)" >> >> Callers that want the folio behind a present PTE spell it out as >> page_folio(pte_page(pte)). >> >> Add pte_folio() as the folio companion to pte_page(), and convert the >> callers in fs/proc/task_mmu.c and mm/hugetlb.c. >> >> Preparation for the anonymous collapse engine, which reads the folio >> behind a PTE in several places. >> >> Assisted-by: Claude-Code:claude-opus-5 >> Signed-off-by: Kiryl Shutsemau (Meta) > > Oh nice, this could clean up some things in the > get_user_pages code too, when we get around to > tech debt there. We really need the page in GUP code ... -- Cheers, David