From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wj0-f200.google.com (mail-wj0-f200.google.com [209.85.210.200]) by kanga.kvack.org (Postfix) with ESMTP id AF7CB6B0271 for ; Tue, 22 Nov 2016 09:20:32 -0500 (EST) Received: by mail-wj0-f200.google.com with SMTP id xy5so9323212wjc.0 for ; Tue, 22 Nov 2016 06:20:32 -0800 (PST) Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com. [148.163.158.5]) by mx.google.com with ESMTPS id o76si2787517wmi.60.2016.11.22.06.20.31 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 22 Nov 2016 06:20:31 -0800 (PST) Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id uAMEK8oj095580 for ; Tue, 22 Nov 2016 09:20:29 -0500 Received: from e23smtp03.au.ibm.com (e23smtp03.au.ibm.com [202.81.31.145]) by mx0b-001b2d01.pphosted.com with ESMTP id 26vm102tn0-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 22 Nov 2016 09:20:24 -0500 Received: from localhost by e23smtp03.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 23 Nov 2016 00:20:15 +1000 Received: from d23relay08.au.ibm.com (d23relay08.au.ibm.com [9.185.71.33]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id D9CB12CE8059 for ; Wed, 23 Nov 2016 01:20:11 +1100 (EST) Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay08.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id uAMEKBh653936260 for ; Wed, 23 Nov 2016 01:20:11 +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 uAMEKBCc016269 for ; Wed, 23 Nov 2016 01:20:11 +1100 From: Anshuman Khandual Subject: [DEBUG 07/12] powerpc/mm: Allow memory hotplug into a memory less node Date: Tue, 22 Nov 2016 19:49:43 +0530 In-Reply-To: <1479824388-30446-1-git-send-email-khandual@linux.vnet.ibm.com> References: <1479824388-30446-1-git-send-email-khandual@linux.vnet.ibm.com> Message-Id: <1479824388-30446-8-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, vbabka@suse.cz, mgorman@suse.de, minchan@kernel.org, aneesh.kumar@linux.vnet.ibm.com, bsingharora@gmail.com, srikar@linux.vnet.ibm.com, haren@linux.vnet.ibm.com, jglisse@redhat.com, dave.hansen@intel.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 e4cb4e62..4086ff7 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1103,7 +1103,7 @@ 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; @@ -1119,17 +1119,6 @@ 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; } -- 1.8.3.1 -- 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