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 4BBF5C33CB7 for ; Sun, 19 Jan 2020 02:11:02 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 005902468C for ; Sun, 19 Jan 2020 02:11:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 005902468C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 558196B0544; Sat, 18 Jan 2020 21:11:01 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 5088F6B0545; Sat, 18 Jan 2020 21:11:01 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3F7216B0546; Sat, 18 Jan 2020 21:11:01 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0142.hostedemail.com [216.40.44.142]) by kanga.kvack.org (Postfix) with ESMTP id 2D41D6B0544 for ; Sat, 18 Jan 2020 21:11:01 -0500 (EST) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id B18E32C37 for ; Sun, 19 Jan 2020 02:11:00 +0000 (UTC) X-FDA: 76392755880.20.pain82_7d26cdf26ff04 X-HE-Tag: pain82_7d26cdf26ff04 X-Filterd-Recvd-Size: 2183 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by imf11.hostedemail.com (Postfix) with ESMTP for ; Sun, 19 Jan 2020 02:10:59 +0000 (UTC) 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 orsmga101.jf.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) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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