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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 7F10DC32771 for ; Sun, 19 Jan 2020 02:11:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5B0FC2468C for ; Sun, 19 Jan 2020 02:11:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728600AbgASCK7 (ORCPT ); Sat, 18 Jan 2020 21:10:59 -0500 Received: from mga05.intel.com ([192.55.52.43]:6490 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727106AbgASCK7 (ORCPT ); Sat, 18 Jan 2020 21:10:59 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Jan 2020 18:10:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,336,1574150400"; d="scan'208";a="214896325" Received: from richard.sh.intel.com (HELO localhost) ([10.239.159.54]) by orsmga007.jf.intel.com with ESMTP; 18 Jan 2020 18:10:56 -0800 Date: Sun, 19 Jan 2020 10:11:07 +0800 From: Wei Yang To: Andrew Morton Cc: Wei Yang , dan.j.williams@intel.com, aneesh.kumar@linux.ibm.com, kirill@shutemov.name, yang.shi@linux.alibaba.com, thellstrom@vmware.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 0/5] mm/mremap.c: cleanup move_page_tables() a little Message-ID: <20200119021107.GA9745@richard> Reply-To: Wei Yang References: <20200117232254.2792-1-richardw.yang@linux.intel.com> <20200118160702.9e5cc9f44ef855c070036331@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200118160702.9e5cc9f44ef855c070036331@linux-foundation.org> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 18, 2020 at 04:07:02PM -0800, Andrew Morton wrote: >On Sat, 18 Jan 2020 07:22:49 +0800 Wei Yang wrote: > >> move_page_tables() tries to move page table by PMD or PTE. >> >> The root reason is if it tries to move PMD, both old and new range should >> be PMD aligned. But current code calculate old range and new range >> separately. This leads to some redundant check and calculation. >> >> This cleanup tries to consolidate the range check in one place to reduce >> some extra range handling. > >Thanks, I grabbed these, aimed at 5.7-rc1. Thanks :) -- Wei Yang Help you, Help me