From patchwork Mon Aug 20 09:35:42 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wen Congyang X-Patchwork-Id: 178740 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id B75FA2C0390 for ; Mon, 20 Aug 2012 19:44:18 +1000 (EST) Received: from song.cn.fujitsu.com (unknown [222.73.24.84]) by ozlabs.org (Postfix) with ESMTP id 8FB782C007E for ; Mon, 20 Aug 2012 19:30:58 +1000 (EST) X-IronPort-AV: E=Sophos;i="4.77,796,1336320000"; d="scan'208";a="5673012" Received: from unknown (HELO tang.cn.fujitsu.com) ([10.167.250.3]) by song.cn.fujitsu.com with ESMTP; 20 Aug 2012 17:29:43 +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 q7K9Uew5021553; Mon, 20 Aug 2012 17:30:46 +0800 Received: from ghost.fnst.cn.fujitsu.com ([10.167.225.226]) by fnstmail02.fnst.cn.fujitsu.com (Lotus Domino Release 8.5.3) with ESMTP id 2012082017304313-378331 ; Mon, 20 Aug 2012 17:30:43 +0800 From: wency@cn.fujitsu.com To: 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 Subject: [RFC V7 PATCH 19/19] memory-hotplug: remove sysfs file of node Date: Mon, 20 Aug 2012 17:35:42 +0800 Message-Id: <1345455342-27752-20-git-send-email-wency@cn.fujitsu.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1345455342-27752-1-git-send-email-wency@cn.fujitsu.com> References: <1345455342-27752-1-git-send-email-wency@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/08/20 17:30:43, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2012/08/20 17:30:51, Serialize complete at 2012/08/20 17:30:51 Cc: len.brown@intel.com, Wen Congyang , isimatu.yasuaki@jp.fujitsu.com, paulus@samba.org, minchan.kim@gmail.com, kosaki.motohiro@jp.fujitsu.com, rientjes@google.com, cl@linux.com, akpm@linux-foundation.org, liuj97@gmail.com X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Yasuaki Ishimatsu The patch adds node_set_offline() and unregister_one_node() to remove_memory() for removing sysfs file of node. CC: David Rientjes CC: Jiang Liu CC: Len Brown CC: Benjamin Herrenschmidt CC: Paul Mackerras CC: Christoph Lameter Cc: Minchan Kim CC: Andrew Morton CC: KOSAKI Motohiro CC: Wen Congyang Signed-off-by: Yasuaki Ishimatsu --- mm/memory_hotplug.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 00c050f..e5928c7 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1279,6 +1279,11 @@ int __ref remove_memory(int nid, u64 start, u64 size) /* remove memmap entry */ firmware_map_remove(start, start + size, "System RAM"); + if (!node_present_pages(nid)) { + node_set_offline(nid); + unregister_one_node(nid); + } + arch_remove_memory(start, size); out: unlock_memory_hotplug();