Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753236Ab3JLGIh (ORCPT ); Sat, 12 Oct 2013 02:08:37 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:2754 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1752375Ab3JLGIe (ORCPT ); Sat, 12 Oct 2013 02:08:34 -0400 X-IronPort-AV: E=Sophos;i="4.93,480,1378828800"; d="scan'208";a="8730988" Message-ID: <5258E718.3060601@cn.fujitsu.com> Date: Sat, 12 Oct 2013 14:07:20 +0800 From: Zhang Yanfei User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6 MIME-Version: 1.0 To: Andrew Morton , "Rafael J . Wysocki" , Len Brown , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Tejun Heo , Toshi Kani , Wanpeng Li , Thomas Renninger , Yinghai Lu , Jiang Liu , Wen Congyang , Lai Jiangshan , Yasuaki Ishimatsu , Taku Izumi , Mel Gorman , Minchan Kim , "mina86@mina86.com" , "gong.chen@linux.intel.com" , Vasilis Liaskovitis , "lwoodman@redhat.com" , Rik van Riel , "jweiner@redhat.com" , Prarit Bhargava CC: "x86@kernel.org" , "linux-kernel@vger.kernel.org" , Linux MM , ACPI Devel Maling List , Chen Tang , Tang Chen , Zhang Yanfei Subject: [PATCH part2 v2 5/8] acpi, numa, mem_hotplug: Mark hotpluggable memory in memblock References: <5258E560.5050506@cn.fujitsu.com> In-Reply-To: <5258E560.5050506@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/10/12 14:06:19, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/10/12 14:06:20, Serialize complete at 2013/10/12 14:06:20 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1803 Lines: 49 From: Tang Chen When parsing SRAT, we know that which memory area is hotpluggable. So we invoke function memblock_mark_hotplug() introduced by previous patch to mark hotpluggable memory in memblock. Signed-off-by: Tang Chen Reviewed-by: Zhang Yanfei --- arch/x86/mm/numa.c | 2 ++ arch/x86/mm/srat.c | 5 +++++ 2 files changed, 7 insertions(+), 0 deletions(-) diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index ab69e1d..408c02d 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -569,6 +569,8 @@ static int __init numa_init(int (*init_func)(void)) memset(&numa_meminfo, 0, sizeof(numa_meminfo)); WARN_ON(memblock_set_node(0, ULLONG_MAX, &memblock.memory, MAX_NUMNODES)); + /* In case that parsing SRAT failed. */ + WARN_ON(memblock_clear_hotplug(0, ULLONG_MAX)); numa_reset_distance(); ret = init_func(); diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c index 266ca91..ca7c484 100644 --- a/arch/x86/mm/srat.c +++ b/arch/x86/mm/srat.c @@ -181,6 +181,11 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) (unsigned long long) start, (unsigned long long) end - 1, hotpluggable ? " hotplug" : ""); + /* Mark hotplug range in memblock. */ + if (hotpluggable && memblock_mark_hotplug(start, ma->length)) + pr_warn("SRAT: Failed to mark hotplug range [mem %#010Lx-%#010Lx] in memblock\n", + (unsigned long long) start, (unsigned long long) end - 1); + return 0; out_err_bad_srat: bad_srat(); -- 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/