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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 28FBBC433EF for ; Sun, 7 Nov 2021 08:57:45 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B139D6103A for ; Sun, 7 Nov 2021 08:57:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org B139D6103A 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 E0A9D6B00D6; Sun, 7 Nov 2021 03:57:43 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id DB9796B00DA; Sun, 7 Nov 2021 03:57:43 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C82256B00D8; Sun, 7 Nov 2021 03:57:43 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0077.hostedemail.com [216.40.44.77]) by kanga.kvack.org (Postfix) with ESMTP id B72C66B00D5 for ; Sun, 7 Nov 2021 03:57:43 -0500 (EST) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 6A6E1181C9BBB for ; Sun, 7 Nov 2021 08:57:43 +0000 (UTC) X-FDA: 78781531206.02.88F03AC Received: from out30-57.freemail.mail.aliyun.com (out30-57.freemail.mail.aliyun.com [115.124.30.57]) by imf05.hostedemail.com (Postfix) with ESMTP id D3FB4509B379 for ; Sun, 7 Nov 2021 08:57:22 +0000 (UTC) X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R611e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01424;MF=baolin.wang@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0UvOAAGr_1636275456; Received: from localhost(mailfrom:baolin.wang@linux.alibaba.com fp:SMTPD_---0UvOAAGr_1636275456) by smtp.aliyun-inc.com(127.0.0.1); Sun, 07 Nov 2021 16:57:37 +0800 From: Baolin Wang To: akpm@linux-foundation.org Cc: ziy@nvidia.com, shy828301@gmail.com, baolin.wang@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/3] Improve the migration stats Date: Sun, 7 Nov 2021 16:57:24 +0800 Message-Id: X-Mailer: git-send-email 1.8.3.1 X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: D3FB4509B379 X-Stat-Signature: xcdtpybarwj1mxp54cw3yypbric7ue8r Authentication-Results: imf05.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=alibaba.com; spf=pass (imf05.hostedemail.com: domain of baolin.wang@linux.alibaba.com designates 115.124.30.57 as permitted sender) smtp.mailfrom=baolin.wang@linux.alibaba.com X-HE-Tag: 1636275442-70722 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000006, 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/ Changes from RFC: - Increase nr_thp_failed when THP is split, no matter how many subpages are migrated successfully. - Add reviewed-by tags. 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 | 68 ++++++++++++++++++++++++++++----------- 3 files changed, 57 insertions(+), 42 deletions(-) -- 1.8.3.1