X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fbase%2Fnode.c;h=583d57ec49a822f0f30305526d456141662bec38;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=a35701c4a039681be09b86be4ebe822fdca0f2d6;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/drivers/base/node.c b/drivers/base/node.c
index a35701c4a..583d57ec4 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -7,8 +7,10 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/node.h>
+#include <linux/hugetlb.h>
 #include <linux/cpumask.h>
 #include <linux/topology.h>
+#include <linux/nodemask.h>
 
 static struct sysdev_class node_class = {
 	set_kset_name("node"),
@@ -18,42 +20,114 @@ static struct sysdev_class node_class = {
 static ssize_t node_read_cpumap(struct sys_device * dev, char * buf)
 {
 	struct node *node_dev = to_node(dev);
-	cpumask_t mask = node_dev->cpumap;
+	cpumask_t mask = node_to_cpumask(node_dev->sysdev.id);
 	int len;
 
-	/* FIXME - someone should pass us a buffer size (count) or
-	 * use seq_file or something to avoid buffer overrun risk. */
-	len = cpumask_scnprintf(buf, 99 /* XXX FIXME */, mask);
+	/* 2004/06/03: buf currently PAGE_SIZE, need > 1 char per 4 bits. */
+	BUILD_BUG_ON(MAX_NUMNODES/4 > PAGE_SIZE/2);
+
+	len = cpumask_scnprintf(buf, PAGE_SIZE-1, mask);
 	len += sprintf(buf + len, "\n");
 	return len;
 }
 
-static SYSDEV_ATTR(cpumap,S_IRUGO,node_read_cpumap,NULL);
+static SYSDEV_ATTR(cpumap, S_IRUGO, node_read_cpumap, NULL);
 
 #define K(x) ((x) << (PAGE_SHIFT - 10))
 static ssize_t node_read_meminfo(struct sys_device * dev, char * buf)
 {
+	int n;
 	int nid = dev->id;
 	struct sysinfo i;
+	unsigned long inactive;
+	unsigned long active;
+	unsigned long free;
+
 	si_meminfo_node(&i, nid);
-	return sprintf(buf, "\n"
+	__get_zone_counts(&active, &inactive, &free, NODE_DATA(nid));
+
+	n = sprintf(buf, "\n"
 		       "Node %d MemTotal:     %8lu kB\n"
 		       "Node %d MemFree:      %8lu kB\n"
 		       "Node %d MemUsed:      %8lu kB\n"
+		       "Node %d Active:       %8lu kB\n"
+		       "Node %d Inactive:     %8lu kB\n"
 		       "Node %d HighTotal:    %8lu kB\n"
 		       "Node %d HighFree:     %8lu kB\n"
 		       "Node %d LowTotal:     %8lu kB\n"
 		       "Node %d LowFree:      %8lu kB\n",
 		       nid, K(i.totalram),
 		       nid, K(i.freeram),
-		       nid, K(i.totalram-i.freeram),
+		       nid, K(i.totalram - i.freeram),
+		       nid, K(active),
+		       nid, K(inactive),
 		       nid, K(i.totalhigh),
 		       nid, K(i.freehigh),
-		       nid, K(i.totalram-i.totalhigh),
-		       nid, K(i.freeram-i.freehigh));
+		       nid, K(i.totalram - i.totalhigh),
+		       nid, K(i.freeram - i.freehigh));
+	n += hugetlb_report_node_meminfo(nid, buf + n);
+	return n;
+}
+
+#undef K
+static SYSDEV_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL);
+
+static ssize_t node_read_numastat(struct sys_device * dev, char * buf)
+{
+	unsigned long numa_hit, numa_miss, interleave_hit, numa_foreign;
+	unsigned long local_node, other_node;
+	int i, cpu;
+	pg_data_t *pg = NODE_DATA(dev->id);
+	numa_hit = 0;
+	numa_miss = 0;
+	interleave_hit = 0;
+	numa_foreign = 0;
+	local_node = 0;
+	other_node = 0;
+	for (i = 0; i < MAX_NR_ZONES; i++) {
+		struct zone *z = &pg->node_zones[i];
+		for (cpu = 0; cpu < NR_CPUS; cpu++) {
+			struct per_cpu_pageset *ps = &z->pageset[cpu];
+			numa_hit += ps->numa_hit;
+			numa_miss += ps->numa_miss;
+			numa_foreign += ps->numa_foreign;
+			interleave_hit += ps->interleave_hit;
+			local_node += ps->local_node;
+			other_node += ps->other_node;
+		}
+	}
+	return sprintf(buf,
+		       "numa_hit %lu\n"
+		       "numa_miss %lu\n"
+		       "numa_foreign %lu\n"
+		       "interleave_hit %lu\n"
+		       "local_node %lu\n"
+		       "other_node %lu\n",
+		       numa_hit,
+		       numa_miss,
+		       numa_foreign,
+		       interleave_hit,
+		       local_node,
+		       other_node);
+}
+static SYSDEV_ATTR(numastat, S_IRUGO, node_read_numastat, NULL);
+
+static ssize_t node_read_distance(struct sys_device * dev, char * buf)
+{
+	int nid = dev->id;
+	int len = 0;
+	int i;
+
+	/* buf currently PAGE_SIZE, need ~4 chars per node */
+	BUILD_BUG_ON(MAX_NUMNODES*4 > PAGE_SIZE/2);
+
+	for_each_online_node(i)
+		len += sprintf(buf + len, "%s%d", i ? " " : "", node_distance(nid, i));
+
+	len += sprintf(buf + len, "\n");
+	return len;
 }
-#undef K 
-static SYSDEV_ATTR(meminfo,S_IRUGO,node_read_meminfo,NULL);
+static SYSDEV_ATTR(distance, S_IRUGO, node_read_distance, NULL);
 
 
 /*
@@ -66,7 +140,6 @@ int __init register_node(struct node *node, int num, struct node *parent)
 {
 	int error;
 
-	node->cpumap = node_to_cpumask(num);
 	node->sysdev.id = num;
 	node->sysdev.cls = &node_class;
 	error = sysdev_register(&node->sysdev);
@@ -74,6 +147,8 @@ int __init register_node(struct node *node, int num, struct node *parent)
 	if (!error){
 		sysdev_create_file(&node->sysdev, &attr_cpumap);
 		sysdev_create_file(&node->sysdev, &attr_meminfo);
+		sysdev_create_file(&node->sysdev, &attr_numastat);
+		sysdev_create_file(&node->sysdev, &attr_distance);
 	}
 	return error;
 }