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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 27082EB3644 for ; Mon, 2 Mar 2026 23:29:42 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 081456B0112; Mon, 2 Mar 2026 18:29:42 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 02F6C6B0113; Mon, 2 Mar 2026 18:29:41 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E498A6B0114; Mon, 2 Mar 2026 18:29:41 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id D4DAE6B0112 for ; Mon, 2 Mar 2026 18:29:41 -0500 (EST) Received: from smtpin28.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 70624140365 for ; Mon, 2 Mar 2026 23:29:41 +0000 (UTC) X-FDA: 84502717362.28.70EDF12 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf04.hostedemail.com (Postfix) with ESMTP id A139E40012 for ; Mon, 2 Mar 2026 23:29:39 +0000 (UTC) Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=TSxh7FtX; spf=pass (imf04.hostedemail.com: domain of akpm@linux-foundation.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1772494179; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=PH6stFB2Nx/ECXz2prAUsaDuxA0K8V3rfmFNdCvYncM=; b=JvceUdI3inYmsIRZ0tdlP2o74G2G62+hvGA0a+xDX4V61TeGbWft1DqKS0qbmcHg5mmrmL /CbwgXmwSrjlNKiu+aOSfKjvNxa2WcxAOM9HhDnZonYToBDRmJnh+eO+gJubO+CXe9qqng vAggfAPljBm5tyvduAQyHRhCg+HINBc= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=TSxh7FtX; spf=pass (imf04.hostedemail.com: domain of akpm@linux-foundation.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1772494179; a=rsa-sha256; cv=none; b=CoT8aes45aOk8xb1rBEwm/Y1oJE4C8lN4/pD/dCkrxUeHQfwkRLpe9Hiygx4Wcl4G43tRd iwD5TtSO3gVxsKLoTszJlp2G1qKqoQJc3zKpgzBNqRwQYkhGam/Tv3FqwCZd/zkvtrOP78 cRAB/7f/vtvZnDDj+MzMrq90FBs4yJg= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 3E62141AB1; Mon, 2 Mar 2026 23:29:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 67948C2BC86; Mon, 2 Mar 2026 23:29:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1772494178; bh=cGbDhS0SYNM7ywiKo18nxPHughICS0VYorf2j+DgiJI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=TSxh7FtXeAjmq+kHAoxRq7blbJce7OjcAyo5efUABhyEIDg5ECsbidW5Mcj6tsYRQ DzsG6rRpbWkeoTG5vogARAaO0jUDloWcC8I+5NMkdmsuNVjw9kdp+VtHQVYC7rwOhD vT8qcareSz2ZYaJdXKgw++Ul/6kRr6+5kG6+y49U= Date: Mon, 2 Mar 2026 15:29:34 -0800 From: Andrew Morton To: "David Hildenbrand (Arm)" Cc: linux-kernel@vger.kernel.org, "linux-mm @ kvack . org" , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jann Horn , Pedro Falcato , David Rientjes , Shakeel Butt , "Matthew Wilcox (Oracle)" , Alice Ryhl , Madhavan Srinivasan , Michael Ellerman , Christian Borntraeger , Janosch Frank , Claudio Imbrenda , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Jarkko Sakkinen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Greg Kroah-Hartman , Arve =?ISO-8859-1?Q?Hj=F8nnev?= =?ISO-8859-1?Q?=E5g?= , Todd Kjos , Christian Brauner , Carlos Llamas , Ian Abbott , H Hartley Sweeten , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Simona Vetter , Jason Gunthorpe , Leon Romanovsky , Dimitri Sivanich , Arnd Bergmann , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Andy Lutomirski , Vincenzo Frascino , Eric Dumazet , Neal Cardwell , "David S. Miller" , David Ahern , Jakub Kicinski , Paolo Abeni , Miguel Ojeda , linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-sgx@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-fsdevel@vger.kernel.org, netdev@vger.kernel.org, rust-for-linux@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH v1 00/16] mm: cleanups around unmapping / zapping Message-Id: <20260302152934.eba1cfede1c9b8cebdf45b09@linux-foundation.org> In-Reply-To: <20260227200848.114019-1-david@kernel.org> References: <20260227200848.114019-1-david@kernel.org> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: mffhs4ycn7yp6omj1kzbzwmpx8c96kwm X-Rspamd-Server: rspam09 X-Rspam-User: X-Rspamd-Queue-Id: A139E40012 X-HE-Tag: 1772494179-532067 X-HE-Meta: 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 qvGXHyvg dnX+WQfkv8Z/sQrmcxx3IyXJEXn8YRAkZmes2c8phPBesd1ObSnXF+ci1RT058bHVCkwfe5ekhtBwvXIre5lGZiyOColI7pzIwtAhrrOfzgJRozolO8GuQnlJvNI9L3JO/A7kqCa20Kuk2H+cD9WsnRbpfQazJKoOj3b6KEyD/Y24LWIULsMfsZ7KUEjPV0lb+xESGSBS64ieWKVehxzFfh/DSt6q3JExKD6odFBrY2wMVbBbE9exH3uuF0NdKMeRC6dC4DfE2ZQkxhjSU7LbFDBQJQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, 27 Feb 2026 21:08:31 +0100 "David Hildenbrand (Arm)" wrote: > A bunch of cleanups around unmapping and zapping. Mostly simplifications, > code movements, documentation and renaming of zapping functions. Thanks, I added this (and the below) to mm.git I suppressed the dded-to-mm emails to protect the innocent. --- a/rust/kernel/mm/virt.rs~mm-memory-remove-zap_details-parameter-from-zap_page_range_single-fix +++ a/rust/kernel/mm/virt.rs @@ -123,9 +123,7 @@ impl VmaRef { // SAFETY: By the type invariants, the caller has read access to this VMA, which is // sufficient for this method call. This method has no requirements on the vma flags. The // address range is checked to be within the vma. - unsafe { - bindings::zap_page_range_single(self.as_ptr(), address, size) - }; + unsafe { bindings::zap_page_range_single(self.as_ptr(), address, size) }; } /// If the [`VM_MIXEDMAP`] flag is set, returns a [`VmaMixedMap`] to this VMA, otherwise _