From patchwork Wed Nov 3 10:51:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baolin Wang X-Patchwork-Id: 12600569 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8025C433F5 for ; Wed, 3 Nov 2021 10:51:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6BC686109F for ; Wed, 3 Nov 2021 10:51:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 6BC686109F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id C9AAD6B0073; Wed, 3 Nov 2021 06:51:34 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C489D6B0074; Wed, 3 Nov 2021 06:51:34 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B39C56B0075; Wed, 3 Nov 2021 06:51:34 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0086.hostedemail.com [216.40.44.86]) by kanga.kvack.org (Postfix) with ESMTP id A27B76B0073 for ; Wed, 3 Nov 2021 06:51:34 -0400 (EDT) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 06CEE5B5C0 for ; Wed, 3 Nov 2021 10:51:34 +0000 (UTC) X-FDA: 78767302866.09.184323D Received: from out30-43.freemail.mail.aliyun.com (out30-43.freemail.mail.aliyun.com [115.124.30.43]) by imf04.hostedemail.com (Postfix) with ESMTP id 567ED50000BB for ; Wed, 3 Nov 2021 10:51:23 +0000 (UTC) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R121e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=8;SR=0;TI=SMTPD_---0Uutr4md_1635936686; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0Uutr4md_1635936686) by smtp.aliyun-inc.com(127.0.0.1); Wed, 03 Nov 2021 18:51:27 +0800 From: Baolin Wang To: akpm@linux-foundation.org, rostedt@goodmis.org, mingo@redhat.com Cc: ziy@nvidia.com, shy828301@gmail.com, baolin.wang@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [RFC PATCH 0/3] Improve the migration stats Date: Wed, 3 Nov 2021 18:51:13 +0800 Message-Id: X-Mailer: git-send-email 1.8.3.1 X-Stat-Signature: 4u18h41eq3sh3exoqizwnixp1wmur15y X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 567ED50000BB Authentication-Results: imf04.hostedemail.com; dkim=none; spf=pass (imf04.hostedemail.com: domain of baolin.wang@linux.alibaba.com designates 115.124.30.43 as permitted sender) smtp.mailfrom=baolin.wang@linux.alibaba.com; dmarc=pass (policy=none) header.from=alibaba.com X-HE-Tag: 1635936683-381969 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: Hi, According to talk with Zi Yan [1], this patch set changes the return value of migrate_pages() to avoid returning a number which is larger than the number of pages the users tried to migrate by move_pages() syscall. Also fix the hugetlb migration stats and migration stats in trace_mm_compaction_migratepages(). Please help to review. Thanks. [1] https://lore.kernel.org/linux-mm/7E44019D-2A5D-4BA7-B4D5-00D4712F1687@nvidia.com/ Baolin Wang (3): mm: migrate: Fix the return value of migrate_pages() mm: migrate: Correct the hugetlb migration stats mm: compaction: Fix the migration stats in trace_mm_compaction_migratepages() include/trace/events/compaction.h | 24 ++++-------------------- mm/compaction.c | 7 ++++--- mm/migrate.c | 25 ++++++++++++++----------- 3 files changed, 22 insertions(+), 34 deletions(-)