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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 A86EBC43458 for ; Mon, 6 Jul 2026 11:35:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0QHNamPKjhT26TDn8HJD8lZwpsva7nZLItuVVWrKgxw=; b=avg0tIDEzyw6GTnHLSNal3NMTd sk2yWEsAJMgzrmmSjKbQUe4OHbFBSprqDGD0Kj67oGW4bQgUwjRAs+TD5kC/DDwpHunSRLtCRFxHT vmWsi+VzZaQJDAmaBDkjBcsy3JOG5lWCzx2fM39MaLb/7b00dSBj57b7wVKWyWKitfXdkDuctA3w9 GSyvCMVGELuGe1By/p3zVuMP/T9l8DFFxKKzItlREsXF2zbZcj43sR5f8kgUEWae2YJLWTIMY74qa 4Xzvt9T/7Zr5FEzKEuLwjtSSSozvyYMyTY6lX14tEOAHjJoD2p0gPCcKD4uDHUe6HPWypHWdJRTYq iFt5MO2g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wghbi-0000000CNvY-0RmL; Mon, 06 Jul 2026 11:35:26 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wghbf-0000000CNuy-0DcO for linux-arm-kernel@lists.infradead.org; Mon, 06 Jul 2026 11:35:23 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 8588A40BD6; Mon, 6 Jul 2026 11:35:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2AD121F000E9; Mon, 6 Jul 2026 11:35:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783337722; bh=0QHNamPKjhT26TDn8HJD8lZwpsva7nZLItuVVWrKgxw=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=LnZg5pDEl/YbyVjvwLOdIOB1fd9xeufnLnBVYTn0yFjkwQQIcH/hNpokUZSQy81nI Spk/ZSjZ9g7PzB3NrgPGutQ6yasP/oh/KcXyhOA7G+NNoDKfyVkahcCARefSEusPPd 9ESC0k1S0n21ErvIbvmbVNonMDp9tDga79CSgtxsK+iQDTZETBcdpeon56Z51rmBuq Pd8iZquPGPJmc1tKS/jqug3yEQQV5ne1CjuIlC/S4fVHYPp5DPp3DhY+Y1/m+BphcR jB3agjkuOkEyqA4LZShAiXpXsEVdLsZxMJE4MIAH6qAINS4fzz5Y/z3aMvjcdGDBLI JQJWBfcaB9XSw== Date: Mon, 6 Jul 2026 14:35:14 +0300 From: Mike Rapoport To: Adrian =?utf-8?Q?Barna=C5=9B?= Cc: Brendan Jackman , linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, Catalin Marinas , Will Deacon , Ryan Roberts , David Hildenbrand , Ard Biesheuvel , Christoph Lameter , Yang Shi , Brendan Jackman , owner-linux-mm@kvack.org Subject: Re: [RFC PATCH 3/6] arm64: mm: fix restoring linear map permissions on execmem cache clean Message-ID: References: <20260611130144.1385343-1-abarnas@google.com> <20260611130144.1385343-4-abarnas@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Adrian, On Wed, Jun 17, 2026 at 03:18:27PM +0000, Adrian Barnaś wrote: > > Following your suggestion, I can put together a preparatory patch series to > refactor the set_direct_map_* APIs to accept a nr_pages parameter. This > refactoring would also allow us to drop the redundant set_area_direct_map > helper. I could then rebase the rox_cache series on top of that. I've been looking at something related and I was already half way through adding numpages to set_direct_map when I remembered this conversation :) Here's what I have for now: https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git/log/?h=direct-map/v0 This is only lightly build tested for arm64 and x86. As this is WIP, things may change there, but I hope it can save you some time with your arm64 ROX cache work. > Does this sound like a good path forward? > > Thanks, > Adrian -- Sincerely yours, Mike.