From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 88C2023AB8E for ; Tue, 5 Aug 2025 14:39:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754404765; cv=none; b=ojAf8k9t8HH1EPzxJOYuvJCTK21RC6ZQHmdPqOZmaB9GXv29IcUh/0VX1b6cX7VQHPvp7xqaepC6u+wzKouQ9rjNCOKG5Zkxhs2040TkclgHRv95cg/jGxbfzIdbKi/ZCQy5iI1CwTea5aRwe2fLdsVc0cY37qNvo7VjfCeFOcs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754404765; c=relaxed/simple; bh=U5eTuVE6fNkIPrpKT788ELmfmNfZJfkcMAxo3FMzxdo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=UKvm0r6Vk784q4+/H9QcR/4SRsXWs3zhtll0K65rcnuD5FyxTCcQbFrIecrbXz3rcVOzB+iQhH2RYbVrVM6ESGJqJx6si8u+xJ6kBZl71Xc4zBusD/odOVt9NCxXpildmBsjl9H/RwIrd3LbJ6bEXL+LGltFwoIByFh62HAF8OU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4ED10C4CEF0; Tue, 5 Aug 2025 14:39:23 +0000 (UTC) Date: Tue, 5 Aug 2025 15:39:20 +0100 From: Catalin Marinas To: Ryan Roberts Cc: Yang Shi , will@kernel.org, akpm@linux-foundation.org, Miko.Lenczewski@arm.com, dev.jain@arm.com, scott@os.amperecomputing.com, cl@gentwo.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH v6 0/4] arm64: support FEAT_BBM level 2 and large block mapping when rodata=full Message-ID: References: <20250805081350.3854670-1-ryan.roberts@arm.com> <985f9d53-ea5e-4da0-9427-106a58be7f26@arm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <985f9d53-ea5e-4da0-9427-106a58be7f26@arm.com> On Tue, Aug 05, 2025 at 09:16:31AM +0100, Ryan Roberts wrote: > On 05/08/2025 09:13, Ryan Roberts wrote: > > This is a new version built on top of Yang Shi's work at [1]. Yang and I have > > been discussing (disagreeing?) about the best way to implement the last 2 > > patches. So I've reworked them and am posting as RFC to illustrate how I think > > this feature should be implemented, but I've retained Yang as primary author > > since it is all based on his work. I'd appreciate feedback from Catalin and/or > > Will on whether this is the right approach, so that hopefully we can get this > > into shape for 6.18. > > I forgot to mention that it applies on Linus's current master (it depends upon > mm and arm64 changes that will first appear in v6.17-rc1 and are already merged > in master). I'm using 89748acdf226 as the base. It's fine as an RFC but, for upstream, please rebase on top of -rc1 rather than a random commit in the middle of the merging window. Also note that many maintainers ignore new series posted during the merging window. -- Catalin