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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-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-Stat-Signature: 7pcf69m4rsk31fspwmkk8k86eoghskxe X-Rspam-User: 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=ham autolearn_force=no version=4.0.1 X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 2CFA71A0005 X-HE-Tag: 1794484148-842875 X-HE-Meta: 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 9L6eL/Rl +cYSYXfbYia2ybRew0HR/g0N5jMGSBVwQmTnMjZp07dd45XZOsn03Ru9xxygSo7YntPk3Dpt9AiqAMijI4nehNajlpnCtq2FfrE+po1xZHOMrt/g11KgwIhEFZysebQFMfjPePxvUosflmx3L6w8LDLccFUPxTlT72L5J0TfAsguvVuoNXYhLbmyKsIAmCfja/pwp/J//7Mj9ExzS/JVOxz8iER5x3mKInjwEFq8enrfNeCyt/czAHkp0+xqVd9ZDekp73kqvddGc4ZmTMgpPU8J8BLt/8v2o+wJLCwxKRHVroXfPHiKL3S56E1G5ZuefbTyU29CKyZiO8Hs= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: 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.