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Thu, 12 Nov 2026 11:49:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794484147; bh=MKcG3X7dsKXAw4NNVjEt7ZV1vzPfMBBW0q4ysZTtxpk=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=NiDyh9CSMf4fnMa1aXCvHZxu1XNPZLF0/Dl9XempRO4DnG2Rnv4Cg3GohFO4EBFz5 81EpjF4nYwMtW7DcmV9HhlhPBEuZxpj9uyD4iv4l+EKqjYt1CyiVf+ASqrTv29jCn3 vw7Cq+OEghXqj50p1/echU8vAtiEFP2pHx3+Q4f2zoGs8RITGhiQpBM9qNWaKvF/t9 ziJmXqbPJb/qA9zZhB4bk4YCtqBFzsbaLaPIXeFmU1UPyBqijY4Klvc2TZ7W6n9eeT xG4p1Q4rF39lKl8yaiQimmWpvUVrLuHhJOiY8tpsIULS66Q4FRARKhqorLxL8+DzQm tq7vXZ+PENnMA== Date: Thu, 12 Nov 2026 13:48:58 +0200 From: Mike Rapoport To: Arnd Bergmann Cc: linux-mm@kvack.org, Arnd Bergmann , Andrew Morton , Andreas Larsson , "Christophe Leroy (CS GROUP)" , Dave Hansen , "David Hildenbrand (Arm)" , Jason Gunthorpe , Linus Walleij , "Lorenzo Stoakes (ARM)" , Matthew Wilcox , Malin Jonsson , Richard Weinberger , Russell King , linux-arm-kernel@lists.infradead.org, linux-fsdevel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org Subject: Re: [PATCH v2 2/6] mm: remove ARCH_NEEDS_KMAP_HIGH_GET Message-ID: References: <20261112112528.1116405-1-arnd@kernel.org> <20261112112528.1116405-3-arnd@kernel.org> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , Precedence: list X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261112112528.1116405-3-arnd@kernel.org> X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS autolearn=unavailable autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Thu, Nov 12, 2026 at 12:25:24PM +0100, Arnd Bergmann wrote: > From: Arnd Bergmann > > Arm has stopped setting ARCH_NEEDS_KMAP_HIGH_GET, so this > is handled using the same wrappers across all architectures > now, which leaves room for simplification. > > Replace lock_kmap()/unlock_kmap() with open-coded spinlocks > and drop the now empty arch_kmap_local_high_get() and > kmap_high_unmap_local() helpers. > > Signed-off-by: Arnd Bergmann > --- > mm/highmem.c | 100 ++++++--------------------------------------------- > 1 file changed, 10 insertions(+), 90 deletions(-) Nice :) Acked-by: Mike Rapoport (Microsoft) -- Sincerely yours, Mike.