From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from r3-19.sinamail.sina.com.cn (r3-19.sinamail.sina.com.cn [202.108.3.19]) (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 44D8C3002B3 for ; Wed, 8 Jul 2026 04:38:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.108.3.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783485532; cv=none; b=c/qJGDTqbCBGdUom8oLREDfwjLsnPW0zKLxkxYYfaO377QRx85quLTC3ZLqTFle3jwuhTMRQZZF8V7F4YEnis9ad8sUk0fp+uzDVwWFcceK3wRHgoRbbQZD5LE0c6GOH2beSR1/w0P0ck7ZENapItWYesXbMVzPBXapwfqNoodM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783485532; c=relaxed/simple; bh=5FOdKzDB6yWCdqgSQcwc4Za+xnczp0iAqhhcWPdAx7w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=izkAocdjVidoobt1drIFQZ0ds7R1d/S58dwlSInym04wVr0LU/t7QXBc65tzqF3xmeXqziqXSwUUj8LQOvWL6OmeOjus9bsMtYhQXe307IK40p14T+ocaOQYxHBpVDPBEW7aDKhmbW8oe1l1bfVJswXRBQN8/T7yjMqNLIXZNRc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b=rHMWl7m2; arc=none smtp.client-ip=202.108.3.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b="rHMWl7m2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1783485527; bh=r+wlUDq1nscYlhIUXNgBLu+X4ifZCpDssrpKDtSdSeY=; h=From:Subject:Date:Message-ID; b=rHMWl7m2+hV+N36vOHda2hp36I5wjlph9SrugPGRqj8GVtmoGMmS8gE5HoWa1/ANJ aI0oQctIkKRJKyL7Lx/y0vdJabnPJDg4XnK2KFuO7rrq1/yh/qWOWDcI4Xlgam0P2t jxM0eH1qhvApHByV3b0zbzg2K6RCU91OVBeRvOPU= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.62.144]) by sina.com (10.54.253.32) with ESMTP id 6A4DD4260000448D; Wed, 8 Jul 2026 12:38:01 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 1043304457391 X-SMAIL-UIID: 0C5A6D398708443A93150E628A0CDE48-20260708-123801-1 From: Hillf Danton To: "David Hildenbrand (Arm)" Cc: tao , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC PATCH v2 00/13] mm: rework anon_vma and remove anon_vma_chain Date: Wed, 8 Jul 2026 12:37:49 +0800 Message-ID: <20260708043751.421-1-hdanton@sina.com> In-Reply-To: <08c001ab-320f-4676-830b-8e4ba6a05dee@kernel.org> References: <20260707063308.29176-1-tao.wangtao@honor.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=UTF-8 Content-Transfer-Encoding: 8bit On Tue, 7 Jul 2026 09:01:04 +0200 "David Hildenbrand (Arm)" wrote: > On 7/7/26 08:32, tao wrote: > > Hi all, > > > > Since v1 was relatively complex and difficult to extend, this version > > adopts a simpler anon_vma implementation approach. > > I really hate to repeat myself, but you seemed to have missed my main point [1] > > "Lorenzo has been hard at work exploring various design options (and I'm afraid > he might be one of the 3 people on this planet that understand anon_vma in full > detail), so I suggest we wait for a redesign proposal from him and see if that > is doable?" > Given that no numabalance could land upstream without horse racing [2], what prevents Lorenzo from becoming another (scarlet? raven black?) lipstick given mglru? > [1] https://lore.kernel.org/all/70377626-500d-46f2-a3f5-a0d2914ce365@kernel.org/ > [2] Subject: Re: [PATCH 00/35] AutoNUMA alpha14 https://lore.kernel.org/lkml/CA+55aFxpD+LsE+aNvDJtz9sGsGMvdusisgOY3Csbzyx1mEqW-w@mail.gmail.com/ > -- > Cheers, > > David