From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f199.google.com (mail-pf0-f199.google.com [209.85.192.199]) by kanga.kvack.org (Postfix) with ESMTP id 9BA096B0260 for ; Mon, 24 Oct 2016 00:42:45 -0400 (EDT) Received: by mail-pf0-f199.google.com with SMTP id t25so114755497pfg.3 for ; Sun, 23 Oct 2016 21:42:45 -0700 (PDT) Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com. [148.163.156.1]) by mx.google.com with ESMTPS id d76si13584065pga.220.2016.10.23.21.42.44 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 23 Oct 2016 21:42:44 -0700 (PDT) Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id u9O4cXYH130732 for ; Mon, 24 Oct 2016 00:42:44 -0400 Received: from e23smtp01.au.ibm.com (e23smtp01.au.ibm.com [202.81.31.143]) by mx0a-001b2d01.pphosted.com with ESMTP id 268yyuneaq-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 24 Oct 2016 00:42:44 -0400 Received: from localhost by e23smtp01.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 24 Oct 2016 14:42:42 +1000 Received: from d23relay10.au.ibm.com (d23relay10.au.ibm.com [9.190.26.77]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id 971662CE8046 for ; Mon, 24 Oct 2016 15:42:39 +1100 (EST) Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay10.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u9O4gdLr590180 for ; Mon, 24 Oct 2016 15:42:39 +1100 Received: from d23av03.au.ibm.com (localhost [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u9O4gdDo030464 for ; Mon, 24 Oct 2016 15:42:39 +1100 From: Anshuman Khandual Subject: [DEBUG 03/10] powerpc/mm: Allow memory hotplug into a memory less node Date: Mon, 24 Oct 2016 10:12:22 +0530 In-Reply-To: <1477284149-2976-1-git-send-email-khandual@linux.vnet.ibm.com> References: <1477283517-2504-1-git-send-email-khandual@linux.vnet.ibm.com> <1477284149-2976-1-git-send-email-khandual@linux.vnet.ibm.com> Message-Id: <1477284149-2976-4-git-send-email-khandual@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: mhocko@suse.com, js1304@gmail.com, vbabka@suse.cz, mgorman@suse.de, minchan@kernel.org, akpm@linux-foundation.org, aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com From: Reza Arbab Remove the check which prevents us from hotplugging into an empty node. Signed-off-by: Reza Arbab Signed-off-by: Anshuman Khandual --- arch/powerpc/mm/numa.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 42fcc8e..5010181 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1091,7 +1091,7 @@ static int hot_add_node_scn_to_nid(unsigned long scn_addr) int hot_add_scn_to_nid(unsigned long scn_addr) { struct device_node *memory = NULL; - int nid, found = 0; + int nid; if (!numa_enabled || (min_common_depth < 0)) return first_online_node; @@ -1107,17 +1107,6 @@ int hot_add_scn_to_nid(unsigned long scn_addr) if (nid < 0 || !node_online(nid)) nid = first_online_node; - if (NODE_DATA(nid)->node_spanned_pages) - return nid; - - for_each_online_node(nid) { - if (NODE_DATA(nid)->node_spanned_pages) { - found = 1; - break; - } - } - - BUG_ON(!found); return nid; } -- 2.1.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org