Messages in this thread Patch in this message |  | | Date | Wed, 31 Jan 2007 07:18:33 -0800 (PST) | From | David Rientjes <> | Subject | [patch -mm 7/7] x86_64: export physnode mapping to userspace |
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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 <ak@suse.de> Signed-off-by: Rohit Seth <rohitseth@google.com> Signed-off-by: David Rientjes <rientjes@google.com> --- 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); } - 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/
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