Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758022Ab3FMN16 (ORCPT ); Thu, 13 Jun 2013 09:27:58 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:39335 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754858Ab3FMN1z (ORCPT ); Thu, 13 Jun 2013 09:27:55 -0400 X-IronPort-AV: E=Sophos;i="4.87,858,1363104000"; d="scan'208";a="7537670" From: Tang Chen To: tglx@linutronix.de, mingo@elte.hu, hpa@zytor.com, akpm@linux-foundation.org, tj@kernel.org, trenn@suse.de, yinghai@kernel.org, jiang.liu@huawei.com, wency@cn.fujitsu.com, laijs@cn.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, mgorman@suse.de, minchan@kernel.org, mina86@mina86.com, gong.chen@linux.intel.com, vasilis.liaskovitis@profitbricks.com, lwoodman@redhat.com, riel@redhat.com, jweiner@redhat.com, prarit@redhat.com Cc: x86@kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [Part3 PATCH v2 3/4] mem-hotplug: Skip LOCAL_NODE_DATA pages in memory online procedure. Date: Thu, 13 Jun 2013 21:03:55 +0800 Message-Id: <1371128636-9027-4-git-send-email-tangchen@cn.fujitsu.com> X-Mailer: git-send-email 1.7.10.1 In-Reply-To: <1371128636-9027-1-git-send-email-tangchen@cn.fujitsu.com> References: <1371128636-9027-1-git-send-email-tangchen@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/06/13 20:59:03, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/06/13 20:59:04, Serialize complete at 2013/06/13 20:59:04 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1047 Lines: 32 Pages marked as LOCAL_NODE_DATA are skipped when we do memory offline. So we have to skip them again when we do memory online. Signed-off-by: Tang Chen --- 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 c2017eb..3561048 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -843,6 +843,11 @@ static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages, if (PageReserved(pfn_to_page(start_pfn))) for (i = 0; i < nr_pages; i++) { page = pfn_to_page(start_pfn + i); + + /* Skip pages storing local node kernel data. */ + if (is_local_node_data(page)) + continue; + (*online_page_callback)(page); onlined_pages++; } -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/