From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965344AbXAaPTJ (ORCPT ); Wed, 31 Jan 2007 10:19:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965273AbXAaPTJ (ORCPT ); Wed, 31 Jan 2007 10:19:09 -0500 Received: from smtp-out.google.com ([216.239.45.13]:56159 "EHLO smtp-out.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965430AbXAaPSt (ORCPT ); Wed, 31 Jan 2007 10:18:49 -0500 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=received:date:from:x-x-sender:to:cc:subject:in-reply-to: message-id:references:mime-version:content-type; b=fAyfV/9zF6OBiALeRDv6aV+IkBbdMjQf8J+u7qX2wyGDQJxx5A/1tb4505LfT/bNO 5oR/60fSN3+i/XlIA1dsQ== Date: Wed, 31 Jan 2007 07:18:33 -0800 (PST) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Andrew Morton cc: Andi Kleen , Rohit Seth , linux-kernel@vger.kernel.org Subject: [patch -mm 7/7] x86_64: export physnode mapping to userspace In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Exports the physical NUMA node to fake NUMA node mapping to user-space via sysfs. The information is now accessible via the 'physnode' file. Cc: Andi Kleen Signed-off-by: Rohit Seth Signed-off-by: David Rientjes --- drivers/base/node.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-) diff --git a/drivers/base/node.c b/drivers/base/node.c index 001e6f6..548d365 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -136,6 +136,13 @@ static ssize_t node_read_distance(struct sys_device * dev, char * buf) } static SYSDEV_ATTR(distance, S_IRUGO, node_read_distance, NULL); +#ifdef CONFIG_NUMA_EMU +static ssize_t node_read_physnode(struct sys_device *dev, char *buf) +{ + return sprintf(buf, "%d\n", get_phys_node(dev->id)); +} +static SYSDEV_ATTR(physnode, S_IRUGO, node_read_physnode, NULL); +#endif /* * register_node - Setup a driverfs device for a node. @@ -156,6 +163,9 @@ int register_node(struct node *node, int num, struct node *parent) sysdev_create_file(&node->sysdev, &attr_meminfo); sysdev_create_file(&node->sysdev, &attr_numastat); sysdev_create_file(&node->sysdev, &attr_distance); +#ifdef CONFIG_NUMA_EMU + sysdev_create_file(&node->sysdev, &attr_physnode); +#endif } return error; } @@ -173,6 +183,9 @@ void unregister_node(struct node *node) sysdev_remove_file(&node->sysdev, &attr_meminfo); sysdev_remove_file(&node->sysdev, &attr_numastat); sysdev_remove_file(&node->sysdev, &attr_distance); +#ifdef CONFIG_NUMA_EMU + sysdev_remove_file(&node->sysdev, &attr_physnode); +#endif sysdev_unregister(&node->sysdev); }