From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756090AbcKVOUe (ORCPT ); Tue, 22 Nov 2016 09:20:34 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:58414 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1756070AbcKVOUa (ORCPT ); Tue, 22 Nov 2016 09:20:30 -0500 From: Anshuman Khandual 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 Subject: [DEBUG 07/12] powerpc/mm: Allow memory hotplug into a memory less node Date: Tue, 22 Nov 2016 19:49:43 +0530 X-Mailer: git-send-email 2.1.0 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> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16112214-0044-0000-0000-000002046E61 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16112214-0045-0000-0000-000006068DE7 Message-Id: <1479824388-30446-8-git-send-email-khandual@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2016-11-22_07:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1609300000 definitions=main-1611220255 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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