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=-17.5 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 691A9C433EF for ; Fri, 3 Sep 2021 04:30:41 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1ACF461057 for ; Fri, 3 Sep 2021 04:30:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 1ACF461057 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 9AE368D0002; Fri, 3 Sep 2021 00:30:40 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 95D358D0001; Fri, 3 Sep 2021 00:30:40 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8739C8D0002; Fri, 3 Sep 2021 00:30:40 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0110.hostedemail.com [216.40.44.110]) by kanga.kvack.org (Postfix) with ESMTP id 790198D0001 for ; Fri, 3 Sep 2021 00:30:40 -0400 (EDT) Received: from smtpin30.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 3C50126825 for ; Fri, 3 Sep 2021 04:30:40 +0000 (UTC) X-FDA: 78544986240.30.5A3EDFD Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf03.hostedemail.com (Postfix) with ESMTP id DD097300009B for ; Fri, 3 Sep 2021 04:30:39 +0000 (UTC) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0F230D6E; Thu, 2 Sep 2021 21:30:39 -0700 (PDT) Received: from [10.163.72.65] (unknown [10.163.72.65]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E205E3F5A1; Thu, 2 Sep 2021 21:30:35 -0700 (PDT) Subject: Re: [FIX PATCH 1/2] mm/page_alloc: Print node fallback order To: Bharata B Rao , linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, kamezawa.hiroyu@jp.fujitsu.com, lee.schermerhorn@hp.com, mgorman@suse.de, Krupa.Ramakrishnan@amd.com, Sadagopan.Srinivasan@amd.com References: <20210830121603.1081-1-bharata@amd.com> <20210830121603.1081-2-bharata@amd.com> From: Anshuman Khandual Message-ID: <9c29181a-b188-ea61-9d86-0d8d0ca4ee04@arm.com> Date: Fri, 3 Sep 2021 10:01:36 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20210830121603.1081-2-bharata@amd.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Authentication-Results: imf03.hostedemail.com; dkim=none; spf=pass (imf03.hostedemail.com: domain of anshuman.khandual@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=anshuman.khandual@arm.com; dmarc=pass (policy=none) header.from=arm.com X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: DD097300009B X-Stat-Signature: aayju8dbceezrwra6kwhdozpu1ndjd3z X-HE-Tag: 1630643439-397965 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 8/30/21 5:46 PM, Bharata B Rao wrote: > Print information message about the allocation fallback order > for each NUMA node during boot. > > No functional changes here. This makes it easier to illustrate > the problem in the node fallback list generation, which the > next patch fixes. > > Signed-off-by: Bharata B Rao > --- > mm/page_alloc.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index eeb3a9cb36bb..22f7ad6ec11c 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -6277,6 +6277,10 @@ static void build_zonelists(pg_data_t *pgdat) > > build_zonelists_in_node_order(pgdat, node_order, nr_nodes); > build_thisnode_zonelists(pgdat); > + pr_info("Fallback order for Node %d: ", local_node); > + for (node = 0; node < nr_nodes; node++) > + pr_cont("%d ", node_order[node]); > + pr_cont("\n"); > } > > #ifdef CONFIG_HAVE_MEMORYLESS_NODES > Node allocation preference sequence for a given accessing node is an important information on large systems. This information during boot and (hotplug --> online sequence) will help the user. Reviewed-by: Anshuman Khandual