From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794484147; b=KipmdyuVLf0yCVO24WPxKa75sFfRJA4VYQ6GNgDjDDxYC81K6cEkGOOO1+CJThk37Htq ymi7pygT1T76hfYvUq0YL40JpWfn3pDnFF4Ph6mk/KPBECx9UL5pOJcXIGJDjZqKIkTti YEflQuZGekHS+5rZ10wkblR5obGfclqWQzcYsAZksYSO/KUeLXfV7ke4VYKX5/B3WnCep zTSOBS0aDOJNbYEpC+SEt6iz3TWFnKP2uxsab8QLF0OmOiHqOZohSBpLXhf6lHSfUY6P9 GDalN/7CPPvswEXlWOaAJYv/a44f15EaDrif+Uonnv+0AL60bICCHQ+MFOajsEvQVCA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794484147; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=MKcG3X7dsKXAw4NNVjEt7ZV1vzPfMBBW0q4ysZTtxpk=; b=1C2fH9izsP9+q4c8EKjxSfRGWLZQFUiDMEnRHZeodigSUOo2QCf3rhJjFA6zApBZ4LjC f4shaPhyRnpb1svBp7ChhwWolRf8tPt7xH4vQDtNytDhdUTKPWwx2tkk5IK5YS7ei6RD/ 5yZRBDhDQeCWcjpqdtnONw/faT5Hm/FXEeZqR7Pxc1n4n/VxMZdzWe/iamZ3vrRQP8a3d 9c9/OzJFiasqSUx1kcXypiC17g6JUtZDrn1hNZNljnuNkC7v4Ox0Ey+1oOJGFM6IYxTgt /GyJkP3FJZ+6WVv50keG4CVzSNPw4BkmJgU+cNG9h+JUSJNgO6OB256N4zyKRRjcKEA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=NiDyh9CS; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D43B0606A31C for ; Thu, 12 Nov 2026 11:49:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=NiDyh9CS Received: by smtp.kernel.org (Postfix) with ESMTPSA id F07851F00A05; 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: linux-fsdevel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261112112528.1116405-3-arnd@kernel.org> 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.