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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0CDE8CD5BB1 for ; Tue, 26 May 2026 15:34:17 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4gPxcm0Yn4z2xtC; Wed, 27 May 2026 01:34:16 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2600:3c0a:e001:78e:0:1991:8:25" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1779809655; cv=none; b=fr6A+GiIkB4Qt+InCJetqjnzlCgQS34Fnaf8uRg82nJlp2tXPbvZOVLSal5wdzDK4ndzXkosSl+oJevTGRAvhc5BxDssIzI3dJH8vBhMMjzjA5crFl/GMul1e6FQ6qSIj3/goAVHkvNRD8KK2szK3P/RUxiHu1xmcKbXXHS8p3NRyblx0WXdNpBT25WtIUKCx3MumZUdRGm77OCudYvQGk2kLKj2j3et4EWC3MG1Okx5UR2tf6H7e7LGURo6mkkTw+8d+pETyKb+4YhRJ7XhiMoRfLLuU5byZQ2/LWPWqMwmRu64RSsxNMlsbTPIixoRvlu9sFvWfbgeSwWRhRdy3g== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1779809655; c=relaxed/relaxed; bh=IXtklErhcuWlv2r8L97+xvorQ7UpGoL4ZF+VJDkPygU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=C1LZW/1BRpSYmisjYupjV+Uep0V9Egch6jg6ivhxNqgHsftkbOxOnW1WOp0M2ZYYh/2tAuCITW1AK44clNyjO7mb28bKDI1X2Z6JnTjL8zr8A9+sfvE6qipKEEBs2xk+8e1oAz1cePeA4CuSw1Adv3nzz++4tQsntrCc5FNLq34/4StZycQv03vjVxn4CyYz2B5hD4wzgJ1ooJs3+hyLxRALrKirlVxlVWXW3mMb5uhnyLVgUHDJWzEK97Bd2qWTC8ICtruD++k1OX0LUfyCvGSnhmSJp26y8soglMULe/VsHoE+SFO+xxScFZJNoDBVFoQsIXfTfQrKzWsXYPVG/Q== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Noq6FzjX; dkim-atps=neutral; spf=pass (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=ljs@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Noq6FzjX; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2600:3c0a:e001:78e:0:1991:8:25; helo=sea.source.kernel.org; envelope-from=ljs@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [IPv6:2600:3c0a:e001:78e:0:1991:8:25]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4gPxck73Yhz2xsW for ; Wed, 27 May 2026 01:34:14 +1000 (AEST) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 986D34362A; Tue, 26 May 2026 15:34:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A5FAF1F00A3C; Tue, 26 May 2026 15:33:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779809651; bh=IXtklErhcuWlv2r8L97+xvorQ7UpGoL4ZF+VJDkPygU=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Noq6FzjXAHednyJbKDsO7gWlmRYH4wZD0QhvuTN+ag2i1VdurKmvBGP3bOfMJCqvU 8kjwZvotf99uxGidiSuhzx7jYl16j0j9D5Yy+Ia0rEVFPucuDOg4YzNa4k3kD5Caql cOvHKMZEdCkn6xBAgqAbnQEdTy1mWt1ZyuPL6nPS3yKF2BtW7gtEowzkU10F/6E0sj qQ72PTZCTU8zRN6nz5ooPdaaDrJoW5P+Y3vgo8M1qA9dygwm5nF6SDZ5t2jHBQrPRo Mw4mppN1KUMAVp0SjeJl63QoEfTyTcLoZY3AGxngefu9qBzd2UnGgPGypTmdUHd5W5 d3hKUeNpi6bxA== Date: Tue, 26 May 2026 16:33:56 +0100 From: Lorenzo Stoakes To: Yin Tirui Cc: Andrew Morton , Matthew Wilcox , David Hildenbrand , Juergen Gross , Jonathan Cameron , Will Deacon , Catalin Marinas , Peter Xu , Luiz Capitulino , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , "Liam R . Howlett" , Zi Yan , Baolin Wang , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Anshuman Khandual , Rohan McLure , Kevin Brodsky , Alistair Popple , Andrew Donnellan , Pasha Tatashin , Baoquan He , Thomas Huth , Coiby Xu , Dan Williams , Yu-cheng Yu , Lu Baolu , Conor Dooley , Rik van Riel , wangkefeng.wang@huawei.com, chenjun102@huawei.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-pm@vger.kernel.org Subject: Re: [PATCH mm-unstable RFC v4 0/7] mm: add huge pfnmap support for remap_pfn_range() Message-ID: References: <20260526145003.88445-1-yintirui@huawei.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260526145003.88445-1-yintirui@huawei.com> Allow me to be mildly pedantic (sorry :) One thing I'd like to highlight here is that remap_pfn_range() is, in the long run, deprecated. mmap_prepare callbacks will indicate a PFN remap mmap_action, which will do the heavy lifting (see [0]). So perhaps worth referring to 'PFN remapping' or something? (Since we already have mmap_prepare() in use, it's also kinda inaccurate to say remap_pfn_range() :) [0]: https://www.kernel.org/doc/html/next/filesystems/mmap_prepare.html Sorry, this is pretty nitpicky :) Cheers, Lorenzo