From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 153F5ECDE46 for ; Wed, 24 Oct 2018 19:40:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B9E2520831 for ; Wed, 24 Oct 2018 19:40:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B9E2520831 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zytor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726972AbeJYEKC (ORCPT ); Thu, 25 Oct 2018 00:10:02 -0400 Received: from terminus.zytor.com ([198.137.202.136]:50197 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725870AbeJYEKB (ORCPT ); Thu, 25 Oct 2018 00:10:01 -0400 Received: from carbon-x1.hos.anvin.org (c-24-5-245-234.hsd1.ca.comcast.net [24.5.245.234] (may be forged)) (authenticated bits=0) by mail.zytor.com (8.15.2/8.15.2) with ESMTPSA id w9OJduMK3600083 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Wed, 24 Oct 2018 12:39:56 -0700 Subject: Re: [PATCH 2/2] x86/ldt: Unmap PTEs for the slow before freeing LDT To: "Kirill A. Shutemov" , tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org Cc: x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20181023163157.41441-1-kirill.shutemov@linux.intel.com> <20181023163157.41441-3-kirill.shutemov@linux.intel.com> From: "H. Peter Anvin" Message-ID: <8430e07d-4648-3543-08e5-03b9550d9f72@zytor.com> Date: Wed, 24 Oct 2018 12:39:51 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20181023163157.41441-3-kirill.shutemov@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/23/18 9:31 AM, Kirill A. Shutemov wrote: > > It shouldn't be a particularly hot path anyway. > That's putting it mildly. -hpa