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 328A11A6832; Tue, 24 Mar 2026 04:40:33 +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=1774327234; cv=none; b=rB3kjgWY5HAvMO2eD/WIrP5T51aBGxAIMy0LiYREotx+EHryvaH2LM043W1Hn+GcTsxfqtq3nS2mpxmsO7XqfgYTYDl/i+eP2UitaGxSHRIs8iG6tNt7yJVWQWND/LTGLir0M0B9I5RcGtFY1AZlusavQyz37TinhPWVae9QMn8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774327234; c=relaxed/simple; bh=loPaoIv+zE5Iyk/V9kLFJDEN6F+Lpy7F7j8B74xqzKw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CtCOiZVTiXB8JLh7JEeZVs3qgB1acgs7jNYbgYbQJnCK4qtkjnVO90SfEVq7lwuav2YBea6kw1dlVESGkhZLDQFGN2iFIyG6OAzMD3vv2wCWxQWSGO/f0MToLYHtVp1fMiix9BVdmU3pcz/dtyYnNNlTBIFzp0LTQngyEBPbS+o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=L48eLu0g; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="L48eLu0g" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5ADAFC19424; Tue, 24 Mar 2026 04:40:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774327233; bh=loPaoIv+zE5Iyk/V9kLFJDEN6F+Lpy7F7j8B74xqzKw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=L48eLu0gsNzfLk0cW3B98uy4zM9DenEhROjLupQYl9xFPWiTdiLoUSngK53UkWjyS Y3B0ANxOVzenZ2y152NVmyWSE0FWD1GS/5ZYaBve8kNsU+/UTxnxKiBP+WLuoXJ8mN Gzupv8u57JfHU4irjn/z6tdRQnILxm3TU1U38z8aHl9LxmA7AOkpKA3K8NvxfGq5q2 Azp4IbwudUo2+aKucZQyreoTFFAIb0CIXNiBV4ZRpz6z3PXt0Z7fNRm4sO2Hbdu8cI eLLMOTyem2zEHLGB3OzO4GWDSr2+z8iY/sQpqFFfcEeO2Ud2x6kxrQKVNbxLg7US7W SoZSWHFPVHbzg== Date: Tue, 24 Mar 2026 13:40:31 +0900 From: "Harry Yoo (Oracle)" To: Qi Zheng Cc: hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com, roman.gushchin@linux.dev, shakeel.butt@linux.dev, muchun.song@linux.dev, david@kernel.org, lorenzo.stoakes@oracle.com, ziy@nvidia.com, harry.yoo@oracle.com, yosry.ahmed@linux.dev, imran.f.khan@oracle.com, kamalesh.babulal@oracle.com, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, chenridong@huaweicloud.com, mkoutny@suse.com, akpm@linux-foundation.org, hamzamahfooz@linux.microsoft.com, apais@linux.microsoft.com, lance.yang@linux.dev, bhe@redhat.com, usamaarif642@gmail.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, Yosry Ahmed , Qi Zheng Subject: Re: [PATCH v6 30/33] mm: memcontrol: prepare for reparenting non-hierarchical stats Message-ID: References: <2d39ea5e-fd69-4acf-8518-a504f5f7a838@linux.dev> <138d9363-ab0c-4f5c-bedc-b326f5aaee91@linux.dev> 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: <138d9363-ab0c-4f5c-bedc-b326f5aaee91@linux.dev> On Tue, Mar 24, 2026 at 12:25:16PM +0800, Qi Zheng wrote: > On 3/24/26 12:05 PM, Harry Yoo (Oracle) wrote: > > On Tue, Mar 24, 2026 at 10:54:48AM +0800, Qi Zheng wrote: > > > On 3/23/26 8:25 PM, Harry Yoo (Oracle) wrote: > > > > On Mon, Mar 23, 2026 at 05:47:27PM +0800, Qi Zheng wrote: > > > > > > so I prefer to add a cleanup patchset to > > > avoid interfering with the merge of this patchset. > > > > but it's a little bit more than a cleanup, no? > > > > I'd say without the followup, this patchset introduces a very subtle > > (likely nobody would notice) functional regression visible on memcgs > > with billions of pages. > > Right. > > > > Otherwise, sending v7 might be more appropriate. > > I think it should be sent either as v7 or as part of v7.1-rcX. > > (Whichever way Andrew prefers) > > OK, In any case I will first send out the cleanup/fix patchset for > everyone to review. Sounds great, thanks! -- Cheers, Harry / Hyeonggon