From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f178.google.com (mail-qt1-f178.google.com [209.85.160.178]) (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 9FD1329993E for ; Fri, 24 Oct 2025 20:37:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761338245; cv=none; b=aiHNbj/dOSHLYKvhlPanRzAczmp1iGzg4YHMKintoiGzbFRIsRNPwcIQ7a8bRwbxabAofgisecK7KT7D7EWR7BnzYC8lBgSj9E1IotKmqvzVLA28gZIaRfihee2vY0r4RIscjVpOrJZjq3h1cWgjTZO6i0KybYHzi9ozHJv8H/A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761338245; c=relaxed/simple; bh=brPT+lM2XPdvJ0J0zQqzP3FRuejOJIrYJjvdheDJC0A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=A3pe3L7AobZwj/vCd21VCL+lAG3Ti9gmxOtO4aUM0MIe8vgCylT4D6y1Hw7K/5UTvfO0ZPXKj54Rueur+MI0VjLLyAWGRyAvq9DubSoEoPj76v45S+WR68iJeeuXDZZBZWRJY1amoFOiApgmf8wL5BzVnVtrhSkilPJaIA3x+1Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=gourry.net; spf=pass smtp.mailfrom=gourry.net; dkim=pass (2048-bit key) header.d=gourry.net header.i=@gourry.net header.b=qgjWqiQg; arc=none smtp.client-ip=209.85.160.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=gourry.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gourry.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gourry.net header.i=@gourry.net header.b="qgjWqiQg" Received: by mail-qt1-f178.google.com with SMTP id d75a77b69052e-4e89e689ec7so15626241cf.2 for ; Fri, 24 Oct 2025 13:37:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gourry.net; s=google; t=1761338241; x=1761943041; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Vn4hQEcGul2fUa7R/OzGXx8vWTt9TjtrdGmgBs4cZEg=; b=qgjWqiQg7Mw0bd6Y7P3gb+spLRaKxWc55mXCg5lTEioPzr2WALPNAO9coZW5YwSU/Q CutOTbPQFirUB6W23YGRV/4n3KJAwDc2HuZ1vmW9vsHfhTQE1lFOzrT1zKthKJ1vN7w8 J99nIJOu6f1vbKH/VbY6iGK7SaV9bmoiquLKjhFMYlujpJGyyVA8Y6ikqLPzjJZE3K4u OZgIq3WLWE0V48aNTFEFsT8fugi2BJ4QfjAxzSnSHsv/2yqeA/JFfFAvF5Jn45VPjnM2 VbQo5z+uEOp/ZfIDudxeAtIZujmHqqIYhpz5spR8VsG3LNndPL57lSFQQ4mQS3eRwY0J boJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761338241; x=1761943041; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Vn4hQEcGul2fUa7R/OzGXx8vWTt9TjtrdGmgBs4cZEg=; b=wf92oOh/4BauytpcJVyj4Bx8CT6ZF8/Lfck86TtcRObDI3RyvrPgfJRcikAjifWGnW IinHGBNhor/a8bNQcsN7Z9vBKUCF7oI8QhqRHUSMqJJ+IaeAgtS2S4gKKWHYqaUbSkGR zbx/X469KAixUMvf9fp5QVHSJfHx0bjDnirfVAYaW7viuEL7qCp1zESg6737+QkRuhgB 9QfAW+ZoeE5KZ0cn344WZoij0fYdXP+1kv+GigGB3uD+h/9PnUPrJnVkERKY3U1ofczd S2Vv6W1iRdn5NtCFMvIjzWYIlFSIMakVlUWxYTWL38WU0gDPlPrOf9BpGmwxC5QdOjKL Vfig== X-Forwarded-Encrypted: i=1; AJvYcCVSKj7LlmEqi6Toat7oyBl9L61uf8k+oTyIm/+N42R4HyGFFltemE1+6/CWZlyOpsqpt70=@vger.kernel.org X-Gm-Message-State: AOJu0Yzit5/GOQg60QiwfzMlPYP1fX4dMH+wp5ktXe3w5l/YGYajSFoR QaK6iTCa+XJoeD8uySsPa9dpTpS8/LgJrL+lzifVpDjN5PwKnNn8WIXnn1iKVMr6fRE= X-Gm-Gg: ASbGncvfaJPEmI7uz22IDd8XxM1NwqGDY1/PHFUJ9/r3agttmYkAXPxXM/X5k7o8con /Z+iqENAkaqS9MU71U9bcVw51zD89Deo9jdVc+91rGchziOldgVPYk0iFzKQivlM1o1Ive+c2Lc aiwst7itHjDN+sawMR2DSkN6169RCZCpzuWtnS84wg4CIxbRKLiJPGT4Jfd02vZlsFOcwjWxZCW pcqRzbB9/MmZ4OOKBEHYFkB9tQpR6c3tPdARMX6TrHPxSJ9i8vow5p3H1MEhuCT1SSJU9Evle5Z mKxE+C0b2ISXA4Zz5uDLlwB5h5lqPJqS5kNsPPRepj9RrzfLGhNzq2HVkXAZfJtW6KXYif21Zbp qQp6oyos2UVaQ2pU+rSh9D3bNA+ZEYTB13PuPgqqbmxYLvWWe2UzBhMpzEGim/apkgL6/MvNzzu AkBSkA8FqS4ZGAFy1H3eyqLs0JmYhH7KR/Yovu6YeqzdBBu58nJKy+P7R0WJvIgunJ/ek7Rg== X-Google-Smtp-Source: AGHT+IEizsVD5MWKlpznZSR+oUAoDamQsr5IFux8tgX6jFrLAoh3hAikSuRK1/9hfCiWycXsqW7SdA== X-Received: by 2002:ac8:58d6:0:b0:4e8:8ed7:da6a with SMTP id d75a77b69052e-4e89d20680bmr359946041cf.8.1761338241380; Fri, 24 Oct 2025 13:37:21 -0700 (PDT) Received: from gourry-fedora-PF4VCD3F (pool-96-255-20-138.washdc.ftas.verizon.net. [96.255.20.138]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4eba37b96d0sm861481cf.6.2025.10.24.13.37.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Oct 2025 13:37:20 -0700 (PDT) Date: Fri, 24 Oct 2025 16:37:18 -0400 From: Gregory Price To: Lorenzo Stoakes Cc: Andrew Morton , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , David Hildenbrand , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Sven Schnelle , Zi Yan , Baolin Wang , "Liam R . Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Kemeng Shi , Kairui Song , Nhat Pham , Baoquan He , Chris Li , Peter Xu , Matthew Wilcox , Jason Gunthorpe , Leon Romanovsky , Muchun Song , Oscar Salvador , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jann Horn , Matthew Brost , Joshua Hahn , Rakie Kim , Byungchul Park , Ying Huang , Alistair Popple , Pedro Falcato , Pasha Tatashin , Rik van Riel , Harry Yoo , kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC PATCH 05/12] fs/proc/task_mmu: refactor pagemap_pmd_range() Message-ID: References: <2ce1da8c64bf2f831938d711b047b2eba0fa9f32.1761288179.git.lorenzo.stoakes@oracle.com> <76348b1f-2626-4010-8269-edd74a936982@lucifer.local> <3f3e5582-d707-41d0-99a7-4e9c25f1224d@lucifer.local> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3f3e5582-d707-41d0-99a7-4e9c25f1224d@lucifer.local> On Fri, Oct 24, 2025 at 09:15:59PM +0100, Lorenzo Stoakes wrote: > On Fri, Oct 24, 2025 at 03:12:08PM -0400, Gregory Price wrote: > > So maybe actually that isn't too bad of an idea... > > Could also be > > nonpresent_or_swap_t but that's kinda icky... clearly we need: union { swp_entry_t swap; nonpresent_entry_t np; pony_entry_t pony; plum_emtry_t beer; } leaf_entry_t; with leaf_type whats_that_pte(leaf_entry_t); with 20 more new functions about how to manage leaf_entries ;] no not seriously, please have a good weekend! and thanks again for doing this! ~Gregory