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Diffstat (limited to 'drivers/base/node.c')
-rw-r--r--drivers/base/node.c168
1 files changed, 88 insertions, 80 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 793f796c4da..44f427a6611 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -1,8 +1,7 @@
/*
- * drivers/base/node.c - basic Node class support
+ * Basic Node interface support
*/
-#include <linux/sysdev.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mm.h>
@@ -19,18 +18,16 @@
#include <linux/swap.h>
#include <linux/slab.h>
-static struct sysdev_class_attribute *node_state_attrs[];
-
-static struct sysdev_class node_class = {
+static struct bus_type node_subsys = {
.name = "node",
- .attrs = node_state_attrs,
+ .dev_name = "node",
};
-static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf)
+static ssize_t node_read_cpumap(struct device *dev, int type, char *buf)
{
struct node *node_dev = to_node(dev);
- const struct cpumask *mask = cpumask_of_node(node_dev->sysdev.id);
+ const struct cpumask *mask = cpumask_of_node(node_dev->dev.id);
int len;
/* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */
@@ -44,23 +41,23 @@ static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf)
return len;
}
-static inline ssize_t node_read_cpumask(struct sys_device *dev,
- struct sysdev_attribute *attr, char *buf)
+static inline ssize_t node_read_cpumask(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
return node_read_cpumap(dev, 0, buf);
}
-static inline ssize_t node_read_cpulist(struct sys_device *dev,
- struct sysdev_attribute *attr, char *buf)
+static inline ssize_t node_read_cpulist(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
return node_read_cpumap(dev, 1, buf);
}
-static SYSDEV_ATTR(cpumap, S_IRUGO, node_read_cpumask, NULL);
-static SYSDEV_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL);
+static DEVICE_ATTR(cpumap, S_IRUGO, node_read_cpumask, NULL);
+static DEVICE_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL);
#define K(x) ((x) << (PAGE_SHIFT - 10))
-static ssize_t node_read_meminfo(struct sys_device * dev,
- struct sysdev_attribute *attr, char * buf)
+static ssize_t node_read_meminfo(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
int n;
int nid = dev->id;
@@ -127,12 +124,13 @@ static ssize_t node_read_meminfo(struct sys_device * dev,
nid, K(node_page_state(nid, NR_WRITEBACK)),
nid, K(node_page_state(nid, NR_FILE_PAGES)),
nid, K(node_page_state(nid, NR_FILE_MAPPED)),
- nid, K(node_page_state(nid, NR_ANON_PAGES)
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ nid, K(node_page_state(nid, NR_ANON_PAGES)
+ node_page_state(nid, NR_ANON_TRANSPARENT_HUGEPAGES) *
- HPAGE_PMD_NR
+ HPAGE_PMD_NR),
+#else
+ nid, K(node_page_state(nid, NR_ANON_PAGES)),
#endif
- ),
nid, K(node_page_state(nid, NR_SHMEM)),
nid, node_page_state(nid, NR_KERNEL_STACK) *
THREAD_SIZE / 1024,
@@ -143,22 +141,23 @@ static ssize_t node_read_meminfo(struct sys_device * dev,
nid, K(node_page_state(nid, NR_SLAB_RECLAIMABLE) +
node_page_state(nid, NR_SLAB_UNRECLAIMABLE)),
nid, K(node_page_state(nid, NR_SLAB_RECLAIMABLE)),
- nid, K(node_page_state(nid, NR_SLAB_UNRECLAIMABLE))
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+ nid, K(node_page_state(nid, NR_SLAB_UNRECLAIMABLE))
, nid,
K(node_page_state(nid, NR_ANON_TRANSPARENT_HUGEPAGES) *
- HPAGE_PMD_NR)
+ HPAGE_PMD_NR));
+#else
+ nid, K(node_page_state(nid, NR_SLAB_UNRECLAIMABLE)));
#endif
- );
n += hugetlb_report_node_meminfo(nid, buf + n);
return n;
}
#undef K
-static SYSDEV_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL);
+static DEVICE_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL);
-static ssize_t node_read_numastat(struct sys_device * dev,
- struct sysdev_attribute *attr, char * buf)
+static ssize_t node_read_numastat(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
return sprintf(buf,
"numa_hit %lu\n"
@@ -174,10 +173,10 @@ static ssize_t node_read_numastat(struct sys_device * dev,
node_page_state(dev->id, NUMA_LOCAL),
node_page_state(dev->id, NUMA_OTHER));
}
-static SYSDEV_ATTR(numastat, S_IRUGO, node_read_numastat, NULL);
+static DEVICE_ATTR(numastat, S_IRUGO, node_read_numastat, NULL);
-static ssize_t node_read_vmstat(struct sys_device *dev,
- struct sysdev_attribute *attr, char *buf)
+static ssize_t node_read_vmstat(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
int nid = dev->id;
int i;
@@ -189,10 +188,10 @@ static ssize_t node_read_vmstat(struct sys_device *dev,
return n;
}
-static SYSDEV_ATTR(vmstat, S_IRUGO, node_read_vmstat, NULL);
+static DEVICE_ATTR(vmstat, S_IRUGO, node_read_vmstat, NULL);
-static ssize_t node_read_distance(struct sys_device * dev,
- struct sysdev_attribute *attr, char * buf)
+static ssize_t node_read_distance(struct device *dev,
+ struct device_attribute *attr, char * buf)
{
int nid = dev->id;
int len = 0;
@@ -210,7 +209,7 @@ static ssize_t node_read_distance(struct sys_device * dev,
len += sprintf(buf + len, "\n");
return len;
}
-static SYSDEV_ATTR(distance, S_IRUGO, node_read_distance, NULL);
+static DEVICE_ATTR(distance, S_IRUGO, node_read_distance, NULL);
#ifdef CONFIG_HUGETLBFS
/*
@@ -228,7 +227,7 @@ static node_registration_func_t __hugetlb_unregister_node;
static inline bool hugetlb_register_node(struct node *node)
{
if (__hugetlb_register_node &&
- node_state(node->sysdev.id, N_HIGH_MEMORY)) {
+ node_state(node->dev.id, N_HIGH_MEMORY)) {
__hugetlb_register_node(node);
return true;
}
@@ -264,17 +263,17 @@ int register_node(struct node *node, int num, struct node *parent)
{
int error;
- node->sysdev.id = num;
- node->sysdev.cls = &node_class;
- error = sysdev_register(&node->sysdev);
+ node->dev.id = num;
+ node->dev.bus = &node_subsys;
+ error = device_register(&node->dev);
if (!error){
- sysdev_create_file(&node->sysdev, &attr_cpumap);
- sysdev_create_file(&node->sysdev, &attr_cpulist);
- sysdev_create_file(&node->sysdev, &attr_meminfo);
- sysdev_create_file(&node->sysdev, &attr_numastat);
- sysdev_create_file(&node->sysdev, &attr_distance);
- sysdev_create_file(&node->sysdev, &attr_vmstat);
+ device_create_file(&node->dev, &dev_attr_cpumap);
+ device_create_file(&node->dev, &dev_attr_cpulist);
+ device_create_file(&node->dev, &dev_attr_meminfo);
+ device_create_file(&node->dev, &dev_attr_numastat);
+ device_create_file(&node->dev, &dev_attr_distance);
+ device_create_file(&node->dev, &dev_attr_vmstat);
scan_unevictable_register_node(node);
@@ -294,17 +293,17 @@ int register_node(struct node *node, int num, struct node *parent)
*/
void unregister_node(struct node *node)
{
- sysdev_remove_file(&node->sysdev, &attr_cpumap);
- sysdev_remove_file(&node->sysdev, &attr_cpulist);
- sysdev_remove_file(&node->sysdev, &attr_meminfo);
- sysdev_remove_file(&node->sysdev, &attr_numastat);
- sysdev_remove_file(&node->sysdev, &attr_distance);
- sysdev_remove_file(&node->sysdev, &attr_vmstat);
+ device_remove_file(&node->dev, &dev_attr_cpumap);
+ device_remove_file(&node->dev, &dev_attr_cpulist);
+ device_remove_file(&node->dev, &dev_attr_meminfo);
+ device_remove_file(&node->dev, &dev_attr_numastat);
+ device_remove_file(&node->dev, &dev_attr_distance);
+ device_remove_file(&node->dev, &dev_attr_vmstat);
scan_unevictable_unregister_node(node);
hugetlb_unregister_node(node); /* no-op, if memoryless node */
- sysdev_unregister(&node->sysdev);
+ device_unregister(&node->dev);
}
struct node node_devices[MAX_NUMNODES];
@@ -315,41 +314,41 @@ struct node node_devices[MAX_NUMNODES];
int register_cpu_under_node(unsigned int cpu, unsigned int nid)
{
int ret;
- struct sys_device *obj;
+ struct device *obj;
if (!node_online(nid))
return 0;
- obj = get_cpu_sysdev(cpu);
+ obj = get_cpu_device(cpu);
if (!obj)
return 0;
- ret = sysfs_create_link(&node_devices[nid].sysdev.kobj,
+ ret = sysfs_create_link(&node_devices[nid].dev.kobj,
&obj->kobj,
kobject_name(&obj->kobj));
if (ret)
return ret;
return sysfs_create_link(&obj->kobj,
- &node_devices[nid].sysdev.kobj,
- kobject_name(&node_devices[nid].sysdev.kobj));
+ &node_devices[nid].dev.kobj,
+ kobject_name(&node_devices[nid].dev.kobj));
}
int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
{
- struct sys_device *obj;
+ struct device *obj;
if (!node_online(nid))
return 0;
- obj = get_cpu_sysdev(cpu);
+ obj = get_cpu_device(cpu);
if (!obj)
return 0;
- sysfs_remove_link(&node_devices[nid].sysdev.kobj,
+ sysfs_remove_link(&node_devices[nid].dev.kobj,
kobject_name(&obj->kobj));
sysfs_remove_link(&obj->kobj,
- kobject_name(&node_devices[nid].sysdev.kobj));
+ kobject_name(&node_devices[nid].dev.kobj));
return 0;
}
@@ -391,15 +390,15 @@ int register_mem_sect_under_node(struct memory_block *mem_blk, int nid)
continue;
if (page_nid != nid)
continue;
- ret = sysfs_create_link_nowarn(&node_devices[nid].sysdev.kobj,
- &mem_blk->sysdev.kobj,
- kobject_name(&mem_blk->sysdev.kobj));
+ ret = sysfs_create_link_nowarn(&node_devices[nid].dev.kobj,
+ &mem_blk->dev.kobj,
+ kobject_name(&mem_blk->dev.kobj));
if (ret)
return ret;
- return sysfs_create_link_nowarn(&mem_blk->sysdev.kobj,
- &node_devices[nid].sysdev.kobj,
- kobject_name(&node_devices[nid].sysdev.kobj));
+ return sysfs_create_link_nowarn(&mem_blk->dev.kobj,
+ &node_devices[nid].dev.kobj,
+ kobject_name(&node_devices[nid].dev.kobj));
}
/* mem section does not span the specified node */
return 0;
@@ -432,10 +431,10 @@ int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
continue;
if (node_test_and_set(nid, *unlinked_nodes))
continue;
- sysfs_remove_link(&node_devices[nid].sysdev.kobj,
- kobject_name(&mem_blk->sysdev.kobj));
- sysfs_remove_link(&mem_blk->sysdev.kobj,
- kobject_name(&node_devices[nid].sysdev.kobj));
+ sysfs_remove_link(&node_devices[nid].dev.kobj,
+ kobject_name(&mem_blk->dev.kobj));
+ sysfs_remove_link(&mem_blk->dev.kobj,
+ kobject_name(&node_devices[nid].dev.kobj));
}
NODEMASK_FREE(unlinked_nodes);
return 0;
@@ -466,7 +465,7 @@ static int link_mem_sections(int nid)
}
if (mem_blk)
- kobject_put(&mem_blk->sysdev.kobj);
+ kobject_put(&mem_blk->dev.kobj);
return err;
}
@@ -594,19 +593,19 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
}
struct node_attr {
- struct sysdev_class_attribute attr;
+ struct device_attribute attr;
enum node_states state;
};
-static ssize_t show_node_state(struct sysdev_class *class,
- struct sysdev_class_attribute *attr, char *buf)
+static ssize_t show_node_state(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct node_attr *na = container_of(attr, struct node_attr, attr);
return print_nodes_state(na->state, buf);
}
#define _NODE_ATTR(name, state) \
- { _SYSDEV_CLASS_ATTR(name, 0444, show_node_state, NULL), state }
+ { __ATTR(name, 0444, show_node_state, NULL), state }
static struct node_attr node_state_attr[] = {
_NODE_ATTR(possible, N_POSSIBLE),
@@ -618,17 +617,26 @@ static struct node_attr node_state_attr[] = {
#endif
};
-static struct sysdev_class_attribute *node_state_attrs[] = {
- &node_state_attr[0].attr,
- &node_state_attr[1].attr,
- &node_state_attr[2].attr,
- &node_state_attr[3].attr,
+static struct attribute *node_state_attrs[] = {
+ &node_state_attr[0].attr.attr,
+ &node_state_attr[1].attr.attr,
+ &node_state_attr[2].attr.attr,
+ &node_state_attr[3].attr.attr,
#ifdef CONFIG_HIGHMEM
- &node_state_attr[4].attr,
+ &node_state_attr[4].attr.attr,
#endif
NULL
};
+static struct attribute_group memory_root_attr_group = {
+ .attrs = node_state_attrs,
+};
+
+static const struct attribute_group *cpu_root_attr_groups[] = {
+ &memory_root_attr_group,
+ NULL,
+};
+
#define NODE_CALLBACK_PRI 2 /* lower than SLAB */
static int __init register_node_type(void)
{
@@ -637,7 +645,7 @@ static int __init register_node_type(void)
BUILD_BUG_ON(ARRAY_SIZE(node_state_attr) != NR_NODE_STATES);
BUILD_BUG_ON(ARRAY_SIZE(node_state_attrs)-1 != NR_NODE_STATES);
- ret = sysdev_class_register(&node_class);
+ ret = subsys_system_register(&node_subsys, cpu_root_attr_groups);
if (!ret) {
hotplug_memory_notifier(node_memory_callback,
NODE_CALLBACK_PRI);
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-09 13:40:51 +0000