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[34.76.113.97]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47aa0960af0sm22530706f8f.30.2026.07.06.05.47.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Jul 2026 05:47:05 -0700 (PDT) Date: Mon, 6 Jul 2026 12:47:02 +0000 From: Adrian =?utf-8?Q?Barna=C5=9B?= To: Mike Rapoport 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; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260706_054708_273293_928BC434 X-CRM114-Status: GOOD ( 14.53 ) 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 On Mon, Jul 06, 2026 at 02:35:14PM +0300, Mike Rapoport wrote: >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 > I did roughly the same on my local tree. >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. I will fetch your commits and I will keep an eye on your tree if anything changes. Thanks, Adrian