[PATCH 4/5] net: show numa_node for net_device in /sys

[Yinghai Lu]

[PATCH 4/5] net: show numa_node for net_device  in /sys

Signed-off-by: Yinghai Lu <yinghai.lu@xxxxxxx>

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 5c19b06..45b87a5 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -230,6 +230,14 @@ static ssize_t store_weight(struct device *dev, struct device_attribute *attr,
 	return netdev_store(dev, attr, buf, len, change_weight);
 }
 
+#ifdef CONFIG_NUMA
+static ssize_t
+numa_node_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        return sprintf (buf, "%d\n", dev->numa_node);
+}
+#endif
+
 static struct device_attribute net_class_attributes[] = {
 	__ATTR(addr_len, S_IRUGO, show_addr_len, NULL),
 	__ATTR(iflink, S_IRUGO, show_iflink, NULL),
@@ -247,6 +255,9 @@ static struct device_attribute net_class_attributes[] = {
 	__ATTR(tx_queue_len, S_IRUGO | S_IWUSR, show_tx_queue_len,
 	       store_tx_queue_len),
 	__ATTR(weight, S_IRUGO | S_IWUSR, show_weight, store_weight),
+#ifdef CONFIG_NUMA
+        __ATTR_RO(numa_node),
+#endif
 	{}
 };
 
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