From patchwork Wed Jan 9 09:32:35 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: tangchen X-Patchwork-Id: 1951861 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id BD3163FC5A for ; Wed, 9 Jan 2013 10:01:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757567Ab3AIKAL (ORCPT ); Wed, 9 Jan 2013 05:00:11 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:15406 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1757422Ab3AIKAJ (ORCPT ); Wed, 9 Jan 2013 05:00:09 -0500 X-IronPort-AV: E=Sophos;i="4.84,437,1355068800"; d="scan'208";a="6551514" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 09 Jan 2013 17:58:05 +0800 Received: from fnstmail02.fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id r099XQTj028267; Wed, 9 Jan 2013 17:33:31 +0800 Received: from tangchen.fnst.cn.fujitsu.com ([10.167.225.117]) by fnstmail02.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2013010917325368-803908 ; Wed, 9 Jan 2013 17:32:53 +0800 From: Tang Chen To: akpm@linux-foundation.org, rientjes@google.com, len.brown@intel.com, benh@kernel.crashing.org, paulus@samba.org, cl@linux.com, minchan.kim@gmail.com, kosaki.motohiro@jp.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, wujianguo@huawei.com, wency@cn.fujitsu.com, tangchen@cn.fujitsu.com, hpa@zytor.com, linfeng@cn.fujitsu.com, laijs@cn.fujitsu.com, mgorman@suse.de, yinghai@kernel.org, glommer@parallels.com Cc: x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-ia64@vger.kernel.org, cmetcalf@tilera.com, sparclinux@vger.kernel.org Subject: [PATCH v6 11/15] memory-hotplug: Integrated __remove_section() of CONFIG_SPARSEMEM_VMEMMAP. Date: Wed, 9 Jan 2013 17:32:35 +0800 Message-Id: <1357723959-5416-12-git-send-email-tangchen@cn.fujitsu.com> X-Mailer: git-send-email 1.7.10.1 In-Reply-To: <1357723959-5416-1-git-send-email-tangchen@cn.fujitsu.com> References: <1357723959-5416-1-git-send-email-tangchen@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/09 17:32:53, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/01/09 17:32:58, Serialize complete at 2013/01/09 17:32:58 Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Currently __remove_section for SPARSEMEM_VMEMMAP does nothing. But even if we use SPARSEMEM_VMEMMAP, we can unregister the memory_section. Signed-off-by: Yasuaki Ishimatsu Signed-off-by: Wen Congyang Signed-off-by: Tang Chen --- mm/memory_hotplug.c | 11 ----------- 1 files changed, 0 insertions(+), 11 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 674e791..b20c4c7 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -430,16 +430,6 @@ static int __meminit __add_section(int nid, struct zone *zone, return register_new_memory(nid, __pfn_to_section(phys_start_pfn)); } -#ifdef CONFIG_SPARSEMEM_VMEMMAP -static int __remove_section(struct zone *zone, struct mem_section *ms) -{ - /* - * XXX: Freeing memmap with vmemmap is not implement yet. - * This should be removed later. - */ - return -EBUSY; -} -#else static int __remove_section(struct zone *zone, struct mem_section *ms) { int ret = -EINVAL; @@ -454,7 +444,6 @@ static int __remove_section(struct zone *zone, struct mem_section *ms) sparse_remove_one_section(zone, ms); return 0; } -#endif /* * Reasonably generic function for adding memory. It is