From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp153-168.sina.com.cn (smtp153-168.sina.com.cn [61.135.153.168]) (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 5801E40680C for ; Wed, 8 Jul 2026 09:18:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=61.135.153.168 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783502325; cv=none; b=CyZML5hX9CccAaR0Q+abSWL+C5zTsbqqZl62XuthpDOSzS6dQE1FG+VqFbjZ95afyvtGyVackGEm0fDW58WkHzWcKl9mLpHcBEZW9rGwsLkzQ2TVpP56DWXX6Q04cvytzGFg7ib4B8KXAduJOxwLLMjJKiqpOW9koZ9aLkMuyTE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783502325; c=relaxed/simple; bh=QXLtkRZzYzQAT/EVh7Pvcgm9E60jTN6ZHnsAjgB9LAY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bwokknNVtD9/97zHYKTCb54kCZXJK3kacx6cYZn9rCTf2ABLchLQQ1fT925zsUkdGjxKGbLzb4CQhhf+jfBrgCemvDVm2I9vV8LTE3G4AYhEpDLUUffTpUk2gcR3Hu8SK/C4id+MVTUpoivJhQ2WS00uaWyESM7fM6vkUToyf4g= 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=J5fesCDX; arc=none smtp.client-ip=61.135.153.168 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="J5fesCDX" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1783502318; bh=QXLtkRZzYzQAT/EVh7Pvcgm9E60jTN6ZHnsAjgB9LAY=; h=From:Subject:Date:Message-ID; b=J5fesCDXCRld5Nx82oLdURxB8E8qmVlSqm5Kxvzku5tBfpX3CEw9fC1B1zfWh846e 7d0SyMH+KhtOeAf0hCm+mYDRKzpy0T263LtSsTWteLnSgALrct18x73ZqbobkCoEqN nQtDNE06CPov5ts/HipyHQfvXg3yW28P0+eTHWVk= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.62.144]) by sina.com (10.54.253.33) with ESMTP id 6A4E155700000FC0; Wed, 8 Jul 2026 17:16:11 +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: 3828746685332 X-SMAIL-UIID: 1D5BA4D9ED2C400BA61570F7063E5C39-20260708-171611-1 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 17:15:59 +0800 Message-ID: <20260708091600.440-1-hdanton@sina.com> In-Reply-To: <7ee0eb5c-619c-4c3e-86d8-0c963d94df76@kernel.org> References: <20260707063308.29176-1-tao.wangtao@honor.com> <20260708043751.421-1-hdanton@sina.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Wed, 8 Jul 2026 09:45:00 +0200 "David Hildenbrand (Arm)" wrote: >On 7/8/26 06:37, Hillf Danton wrote: >> 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? > > Did you ever look at anon_vma, or are you just joining a discussion to say some > words nobody understands, really? :) > I know this is lore, not a dump land for you, and like thp and kswapd for instance, anon vma is a part of mm, nothing more. I just want to know if you are telling us anything true. BTW are you one of the 3 (legendary knowall) figures (with two heads on their shoulders)?