Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753821Ab3HPHJq (ORCPT ); Fri, 16 Aug 2013 03:09:46 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:29462 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751529Ab3HPHIP (ORCPT ); Fri, 16 Aug 2013 03:08:15 -0400 X-IronPort-AV: E=Sophos;i="4.89,892,1367942400"; d="scan'208";a="8217637" From: Tang Chen To: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, lenb@kernel.org, rjw@sisk.pl, liwanp@linux.vnet.ibm.com, tj@kernel.org, akpm@linux-foundation.org Cc: x86@kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH 2/6] acpi, numa, mem_hotplug: Print Hot-Pluggable Field in SRAT. Date: Fri, 16 Aug 2013 15:06:45 +0800 Message-Id: <1376636809-10159-3-git-send-email-tangchen@cn.fujitsu.com> X-Mailer: git-send-email 1.7.11.7 In-Reply-To: <1376636809-10159-1-git-send-email-tangchen@cn.fujitsu.com> References: <1376636809-10159-1-git-send-email-tangchen@cn.fujitsu.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/08/16 15:06:32, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/08/16 15:06:36, Serialize complete at 2013/08/16 15:06:36 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1824 Lines: 55 The Hot-Pluggable field in SRAT suggests if the memory could be hotplugged while the system is running. Print it as well when parsing SRAT will help users to know which memory is hotpluggable. Signed-off-by: Tang Chen Reviewed-by: Wanpeng Li Reviewed-by: Zhang Yanfei Acked-by: Tejun Heo --- arch/x86/mm/srat.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c index 1613c02..71411aa 100644 --- a/arch/x86/mm/srat.c +++ b/arch/x86/mm/srat.c @@ -141,6 +141,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) { u64 start, end; int node, pxm; + u32 hotpluggable; if (srat_disabled()) goto out_err; @@ -152,6 +153,8 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) start = ma->base_address; end = start + ma->length; pxm = ma->proximity_domain; + hotpluggable = ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE; + if (acpi_srat_revision <= 1) pxm &= 0xff; @@ -166,9 +169,10 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma) node_set(node, numa_nodes_parsed); - printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]\n", - node, pxm, - (unsigned long long) start, (unsigned long long) end - 1); + pr_info("SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]%s\n", + node, pxm, + (unsigned long long) start, (unsigned long long) end - 1, + hotpluggable ? " hotplug" : ""); return 0; out_err_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/