From patchwork Fri May 1 03:11:27 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srikar Dronamraju X-Patchwork-Id: 11522029 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C181B913 for ; Fri, 1 May 2020 03:11:53 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 98F6620656 for ; Fri, 1 May 2020 03:11:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 98F6620656 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.vnet.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 0C8A58E0007; Thu, 30 Apr 2020 23:11:52 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 07AED8E0001; Thu, 30 Apr 2020 23:11:52 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E0D868E0007; Thu, 30 Apr 2020 23:11:51 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0206.hostedemail.com [216.40.44.206]) by kanga.kvack.org (Postfix) with ESMTP id C9D2E8E0001 for ; Thu, 30 Apr 2020 23:11:51 -0400 (EDT) Received: from smtpin01.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 972D9180AD802 for ; Fri, 1 May 2020 03:11:51 +0000 (UTC) X-FDA: 76766675622.01.nest39_677a727883e04 X-Spam-Summary: 2,0,0,f1b17d1c4a915ac3,d41d8cd98f00b204,srikar@linux.vnet.ibm.com,,RULES_HIT:41:355:379:541:800:960:967:973:988:989:1260:1261:1345:1359:1431:1437:1535:1542:1711:1730:1747:1777:1792:2194:2198:2199:2200:2393:2525:2553:2559:2563:2682:2685:2693:2859:2898:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3352:3865:3867:3868:3872:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:5007:6117:6261:6742:7875:7903:7904:9025:9592:10004:11026:11232:11473:11658:11914:12043:12296:12297:12438:12555:12895:12986:13846:14096:14181:14394:14721:21080:21451:21627:21749:21811:21939:30054:30070:30080:30090,0,RBL:148.163.158.5:@linux.vnet.ibm.com:.lbl8.mailshell.net-64.201.201.201 62.8.0.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:25,LUA_SUMMARY:none X-HE-Tag: nest39_677a727883e04 X-Filterd-Recvd-Size: 5363 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by imf06.hostedemail.com (Postfix) with ESMTP for ; Fri, 1 May 2020 03:11:50 +0000 (UTC) Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 04132DJR159159; Thu, 30 Apr 2020 23:11:47 -0400 Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0b-001b2d01.pphosted.com with ESMTP id 30r84m4qmj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 30 Apr 2020 23:11:47 -0400 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.16.0.27/8.16.0.27) with SMTP id 0412tHId032240; Fri, 1 May 2020 03:11:45 GMT Received: from b06cxnps4076.portsmouth.uk.ibm.com (d06relay13.portsmouth.uk.ibm.com [9.149.109.198]) by ppma04ams.nl.ibm.com with ESMTP id 30mcu73vyq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 01 May 2020 03:11:45 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0413BhNA57802850 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 1 May 2020 03:11:43 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 47BAC11C04C; Fri, 1 May 2020 03:11:43 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AFFE811C04A; Fri, 1 May 2020 03:11:40 +0000 (GMT) Received: from srikart450.in.ibm.com (unknown [9.199.43.214]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 1 May 2020 03:11:40 +0000 (GMT) From: Srikar Dronamraju To: Andrew Morton Cc: Srikar Dronamraju , linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Michal Hocko , Mel Gorman , Vlastimil Babka , "Kirill A. Shutemov" , Christopher Lameter , Michael Ellerman , Linus Torvalds , Gautham R Shenoy Subject: [PATCH v3 2/3] powerpc/numa: Prefer node id queried from vphn Date: Fri, 1 May 2020 08:41:27 +0530 Message-Id: <20200501031128.19584-3-srikar@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200501031128.19584-1-srikar@linux.vnet.ibm.com> References: <20200501031128.19584-1-srikar@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-04-30_13:2020-04-30,2020-04-30 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 impostorscore=0 clxscore=1015 suspectscore=0 spamscore=0 priorityscore=1501 phishscore=0 adultscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2005010017 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: Node id queried from the static device tree may not be correct. For example: it may always show 0 on a shared processor. Hence prefer the node id queried from vphn and fallback on the device tree based node id if vphn query fails. Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org Cc: Michal Hocko Cc: Mel Gorman Cc: Vlastimil Babka Cc: "Kirill A. Shutemov" Cc: Christopher Lameter Cc: Michael Ellerman Cc: Andrew Morton Cc: Linus Torvalds Cc: Gautham R Shenoy Signed-off-by: Srikar Dronamraju --- Changelog v2:->v3: - Resolved comments from Gautham. Link v2: https://lore.kernel.org/linuxppc-dev/20200428093836.27190-1-srikar@linux.vnet.ibm.com/t/#u Changelog v1:->v2: - Rebased to v5.7-rc3 arch/powerpc/mm/numa.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index b3615b7fdbdf..79c74a2753c1 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -719,21 +719,22 @@ static int __init parse_numa_properties(void) */ for_each_present_cpu(i) { struct device_node *cpu; - int nid; - - cpu = of_get_cpu_node(i, NULL); - BUG_ON(!cpu); - nid = of_node_to_nid_single(cpu); - of_node_put(cpu); + int nid = vphn_get_nid(i); /* * Don't fall back to default_nid yet -- we will plug * cpus into nodes once the memory scan has discovered * the topology. */ - if (nid < 0) - continue; - node_set_online(nid); + if (nid == NUMA_NO_NODE) { + cpu = of_get_cpu_node(i, NULL); + BUG_ON(!cpu); + nid = of_node_to_nid_single(cpu); + of_node_put(cpu); + } + + if (likely(nid > 0)) + node_set_online(nid); } get_n_mem_cells(&n_mem_addr_cells, &n_mem_size_cells);