From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e39.co.us.ibm.com (e39.co.us.ibm.com [32.97.110.160]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e39.co.us.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id A5A772C03A4 for ; Sat, 9 Mar 2013 15:07:12 +1100 (EST) Received: from /spool/local by e39.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 8 Mar 2013 21:07:10 -0700 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by d01dlp02.pok.ibm.com (Postfix) with ESMTP id 9A6CA6E801D for ; Fri, 8 Mar 2013 23:07:05 -0500 (EST) Received: from d03av06.boulder.ibm.com (d03av06.boulder.ibm.com [9.17.195.245]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r29477kr317746 for ; Fri, 8 Mar 2013 23:07:07 -0500 Received: from d03av06.boulder.ibm.com (loopback [127.0.0.1]) by d03av06.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r2949fZw013630 for ; Fri, 8 Mar 2013 21:09:41 -0700 Received: from [9.76.31.13] (sig-9-76-31-13.mts.ibm.com [9.76.31.13]) by d03av06.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id r2949eLn013558 for ; Fri, 8 Mar 2013 21:09:41 -0700 Message-ID: <513AB569.1040106@linux.vnet.ibm.com> Date: Fri, 08 Mar 2013 22:07:05 -0600 From: Nathan Fontenot MIME-Version: 1.0 To: linuxppc-dev@ozlabs.org Subject: [PATCH 8/11] Update numa cpu vdso info References: <513AB2E3.6090209@linux.vnet.ibm.com> In-Reply-To: <513AB2E3.6090209@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Jesse Larrew The following patch adds vdso_getcpu_init(), which stores the NUMA node for a cpu in SPRG3: http://patchwork.ozlabs.org/patch/169070/ This patch ensures that this information is also updated when the NUMA affinity of a cpu changes. Signed-off-by: Nathan Fontenot --- arch/powerpc/mm/numa.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) Index: powerpc/arch/powerpc/mm/numa.c =================================================================== --- powerpc.orig/arch/powerpc/mm/numa.c 2013-03-08 19:57:47.000000000 -0600 +++ powerpc/arch/powerpc/mm/numa.c 2013-03-08 19:57:59.000000000 -0600 @@ -30,6 +30,7 @@ #include #include #include +#include static int numa_enabled = 1; @@ -1426,6 +1427,7 @@ unregister_cpu_under_node(update->cpu, update->old_nid); unmap_cpu_from_node(update->cpu); map_cpu_to_node(update->cpu, update->new_nid); + vdso_getcpu_init(); register_cpu_under_node(update->cpu, update->new_nid); return 0; @@ -1440,8 +1442,11 @@ int cpu, changed = 0; struct topology_update_data update; unsigned int associativity[VPHN_ASSOC_BUFSIZE] = {0}; + cpumask_t updated_cpu; struct device *dev; + cpumask_clear(&updated_cpu); + for_each_cpu(cpu, &cpu_associativity_changes_mask) { update.cpu = cpu; vphn_get_associativity(cpu, associativity); @@ -1451,7 +1456,8 @@ update.new_nid = first_online_node; update.old_nid = numa_cpu_lookup_table[cpu]; - stop_machine(update_cpu_topology, &update, cpu_online_mask); + cpumask_set_cpu(cpu, &updated_cpu); + stop_machine(update_cpu_topology, &update, &updated_cpu); dev = get_cpu_device(cpu); if (dev) kobject_uevent(&dev->kobj, KOBJ_CHANGE);