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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_SANE_1 autolearn=unavailable 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 5D32FC433B4 for ; Fri, 2 Apr 2021 04:09:04 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BF4AF61056 for ; Fri, 2 Apr 2021 04:09:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BF4AF61056 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=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 323306B0073; Fri, 2 Apr 2021 00:09:03 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 2D3B66B0074; Fri, 2 Apr 2021 00:09:03 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 19C5A6B0075; Fri, 2 Apr 2021 00:09:03 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0080.hostedemail.com [216.40.44.80]) by kanga.kvack.org (Postfix) with ESMTP id EF0056B0073 for ; Fri, 2 Apr 2021 00:09:02 -0400 (EDT) Received: from smtpin07.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id A5A49BF05 for ; Fri, 2 Apr 2021 04:09:02 +0000 (UTC) X-FDA: 77986096524.07.B65034D Received: from out30-56.freemail.mail.aliyun.com (out30-56.freemail.mail.aliyun.com [115.124.30.56]) by imf16.hostedemail.com (Postfix) with ESMTP id 98DED80192C6 for ; Fri, 2 Apr 2021 04:09:00 +0000 (UTC) X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R141e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04395;MF=xlpang@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0UUC7cQt_1617336536; Received: from xunleideMacBook-Pro.local(mailfrom:xlpang@linux.alibaba.com fp:SMTPD_---0UUC7cQt_1617336536) by smtp.aliyun-inc.com(127.0.0.1); Fri, 02 Apr 2021 12:08:56 +0800 Reply-To: xlpang@linux.alibaba.com Subject: Re: [PATCH 0/4] mm/page_reporting: Some knobs and fixes To: Xunlei Pang , Andrew Morton , Mel Gorman , David Hildenbrand , Alexander Duyck Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <1616751898-58393-1-git-send-email-xlpang@linux.alibaba.com> From: Xunlei Pang Message-ID: Date: Fri, 2 Apr 2021 12:08:55 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: <1616751898-58393-1-git-send-email-xlpang@linux.alibaba.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 98DED80192C6 X-Stat-Signature: tt8ddse6jhm5fgsbxh884nu887maz9yj Received-SPF: none (linux.alibaba.com>: No applicable sender policy available) receiver=imf16; identity=mailfrom; envelope-from=""; helo=out30-56.freemail.mail.aliyun.com; client-ip=115.124.30.56 X-HE-DKIM-Result: none/none X-HE-Tag: 1617336540-136667 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 3/26/21 5:44 PM, Xunlei Pang wrote: > Add the following knobs in PATCH 1~3: > /sys/kernel/mm/page_reporting/reported_kbytes > /sys/kernel/mm/page_reporting/refault_kbytes > /sys/kernel/mm/page_reporting/reporting_factor > > Fix unexpected user OOM in PATCH 4. > > Xunlei Pang (4): > mm/page_reporting: Introduce free page reported counters > mm/page_reporting: Introduce free page reporting factor > mm/page_reporting: Introduce "page_reporting_factor=" boot parameter > mm/page_reporting: Fix possible user allocation failure > > Documentation/admin-guide/kernel-parameters.txt | 3 + > include/linux/mmzone.h | 3 + > mm/page_alloc.c | 6 +- > mm/page_reporting.c | 268 ++++++++++++++++++++++-- > 4 files changed, 260 insertions(+), 20 deletions(-) > Hi guys, Looks "Alexander Duyck " was not available, so Cced more, any comment? Thanks!