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=1793182352; b=pNXlYl+iC3WeVccCaXzWltH2+X19sDPGkhpjN6AC2MtWJDZXB3eA3jDP95Anf3m+2cbJ rWrxjl2TLD7aI8gFIG8oL7v6We5n08E4qmduz5s2Yw12DH6hwiEIE6ToRO4SuOPktzLsg 1NVvJ3eeZoAZWc4Z8d0S4Pjpi7E88eDkaQ0oBDyMBwhJDUwENVMIQsZCzWKIWA90wnhhY Lg/cjO/IymSPOSp7zacX9eVT1fGiBuHaHFKNqCl3XJL+W2tzfWj+UrNfPPV4xHTXLpx39 qy7gXDTvyeTuWhOkrnw8iAkmNKcy3S2PK7teZIshsdtBX36in7DdeAJmO6xMn/fpTRg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793182352; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition:In-Reply-To; bh=CLByMb/sD+ZAvsSTekY9MbsiY0HI8hmQnYsiCGgVbF8=; b=jz3s/oGTRlsYW4V4ZiDj4hyWkIibNf2A8r1oVVDLMupYXxGVY0y3udpzdJPoh6G8B/Cd 7D7vSUypi3h7ucR4I37kK9c3vSgnjh9O1uoS3kTBwgQhVhfMxYZ9pTZ4SGutrMzLCGz0+ lBK2E5c2x7bN+rpvhhr0SHgZWyL9Qv/anyFYfo6BCGQx79vAU8hjm6Gnb2bIcMDkdNvfp 6BkCUE8DtFjxAQz2V0i7Ekhk2OZUhTvtedpqUeQoydfpLd+CKcApg6mPhhGfvL+HrnCTs +oWrmTiqmc5F2a6P3D592sn5NADI23klnFV5Vm3JMUsr2t6IDgQjwnoSVW7SHDAJaYA== 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=YuBqUzh1; 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 E48BF606A31A; Wed, 28 Oct 2026 10:12:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=YuBqUzh1 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9FD541F01825; Wed, 28 Oct 2026 10:12:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793182351; bh=CLByMb/sD+ZAvsSTekY9MbsiY0HI8hmQnYsiCGgVbF8=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=YuBqUzh1l2HE0YDAwpzIJkTNkJHZvsBgVQoXuvebJcvMlK2CX3Qlpb2XrbN9DeQDo JpplHxGpqlnKavhwLga6sy6Q1KnNbnmZ62d51braPNx3KY7zIwhPOMiYz3yJWygjqd jpZz2BEZFPytQxTVeVNOXTowXrcgLAo0Dn6W8LG5SvQtSeTRmemfNSruWtZohfT+x2 wgpjsApsEfTr9+2mJ4A5L5Osk6aBEUd1Ku2RFMscCQy7DiT9aLenhF3ZmgzPajDVfD sfxUf1lOGJA4omOJGn+9LZ3kA7suK2pDT1BRy1FyaW77ilM1apyS6jR2LtUoF4GdSv g2wIDe/oD+4ZA== Date: Wed, 28 Oct 2026 10:12:25 +0000 From: "Lorenzo Stoakes (ARM)" To: "David Hildenbrand (Arm)" Cc: John Paul Adrian Glaubitz , Imre Kaloz , "David S. Miller" , Andreas Larsson , "Matthew Wilcox (Oracle)" , "Mike Rapoport (IBM)" , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Suren Baghdasaryan , Michal Hocko , sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Magnus Lindholm Subject: Re: [PATCH v3 4/4] mm: pass the number of PTEs to move_pte() Message-ID: References: <2bc50d2a6829b49ee909e5bb943244859661a40b.1792609488.git.kaloz@kernel.org> <409079fe-ab52-4389-9fe0-d7246eb27bad@kernel.org> <20261027212610.6798-1-kaloz@kernel.org> <20261028091631.8072-1-kaloz@kernel.org> <25f5cbed-9126-4870-a81e-65099155bc9d@kernel.org> <8d4993cb2f2e5c3300514f1e2616e4a101488883.camel@physik.fu-berlin.de> <5dac5fd3-c2a6-4e1a-98fa-0fe1936b269d@kernel.org> X-Mailing-List: linux-kernel@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: <5dac5fd3-c2a6-4e1a-98fa-0fe1936b269d@kernel.org> On Wed, Oct 28, 2026 at 11:02:17AM +0100, David Hildenbrand (Arm) wrote: > On 10/28/26 10:58, John Paul Adrian Glaubitz wrote: > > I don't think it's fair to make the kernel exclusive to very recent hardware only. Nobody's making the kernel 'exclusive' to 'recent' hardware. It's about overburdened maintainers having to deal with museum-piece hardware at the cost of literally _everybody else_ who uses linux. Use an older or downstream kernel - problem solved ;) > > "Very recent" find the mistake. Exactly... > > (sorry, I'm unusually grumpy today) Justifiable ;) -- Cheers, Lorenzo