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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-08 10:17:20 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-08 10:17:20 -0800
commite10154189f001b6428a83f58b03a27954f0f8022 (patch)
tree30b4ac5760c5d310e9cc2cbf8fc4b9c6f9d0e369 /drivers/base/node.c
parentd4bab1b091be4a91a7363118c9ede3cc9a7fefd4 (diff)
parent410c17651998944630a95fbb286a50362de2dbb0 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (62 commits) msi-laptop: depends on RFKILL msi-laptop: Detect 3G device exists by standard ec command msi-laptop: Add resume method for set the SCM load again msi-laptop: Support some MSI 3G netbook that is need load SCM msi-laptop: Add threeg sysfs file for support query 3G state by standard 66/62 ec command msi-laptop: Support standard ec 66/62 command on MSI notebook and nebook Driver core: create lock/unlock functions for struct device sysfs: fix for thinko with sysfs_bin_attr_init() sysfs: Kill unused sysfs_sb variable. sysfs: Pass super_block to sysfs_get_inode driver core: Use sysfs_rename_link in device_rename sysfs: Implement sysfs_rename_link sysfs: Pack sysfs_dirent more tightly. sysfs: Serialize updates to the vfs inode sysfs: windfarm: init sysfs attributes sysfs: Use sysfs_attr_init and sysfs_bin_attr_init on module dynamic attributes sysfs: Document sysfs_attr_init and sysfs_bin_attr_init sysfs: Use sysfs_attr_init and sysfs_bin_attr_init on dynamic attributes sysfs: Use one lockdep class per sysfs attribute. sysfs: Only take active references on attributes. ...
Diffstat (limited to 'drivers/base/node.c')
-rw-r--r--drivers/base/node.c81
1 files changed, 30 insertions, 51 deletions
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 70122791683..ad43185ec15 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -16,8 +16,11 @@
#include <linux/device.h>
#include <linux/swap.h>
+static struct sysdev_class_attribute *node_state_attrs[];
+
static struct sysdev_class node_class = {
.name = "node",
+ .attrs = node_state_attrs,
};
@@ -544,76 +547,52 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
return n;
}
-static ssize_t print_nodes_possible(struct sysdev_class *class, char *buf)
-{
- return print_nodes_state(N_POSSIBLE, buf);
-}
-
-static ssize_t print_nodes_online(struct sysdev_class *class, char *buf)
-{
- return print_nodes_state(N_ONLINE, buf);
-}
-
-static ssize_t print_nodes_has_normal_memory(struct sysdev_class *class,
- char *buf)
-{
- return print_nodes_state(N_NORMAL_MEMORY, buf);
-}
+struct node_attr {
+ struct sysdev_class_attribute attr;
+ enum node_states state;
+};
-static ssize_t print_nodes_has_cpu(struct sysdev_class *class, char *buf)
+static ssize_t show_node_state(struct sysdev_class *class,
+ struct sysdev_class_attribute *attr, char *buf)
{
- return print_nodes_state(N_CPU, buf);
+ struct node_attr *na = container_of(attr, struct node_attr, attr);
+ return print_nodes_state(na->state, buf);
}
-static SYSDEV_CLASS_ATTR(possible, 0444, print_nodes_possible, NULL);
-static SYSDEV_CLASS_ATTR(online, 0444, print_nodes_online, NULL);
-static SYSDEV_CLASS_ATTR(has_normal_memory, 0444, print_nodes_has_normal_memory,
- NULL);
-static SYSDEV_CLASS_ATTR(has_cpu, 0444, print_nodes_has_cpu, NULL);
+#define _NODE_ATTR(name, state) \
+ { _SYSDEV_CLASS_ATTR(name, 0444, show_node_state, NULL), state }
+static struct node_attr node_state_attr[] = {
+ _NODE_ATTR(possible, N_POSSIBLE),
+ _NODE_ATTR(online, N_ONLINE),
+ _NODE_ATTR(has_normal_memory, N_NORMAL_MEMORY),
+ _NODE_ATTR(has_cpu, N_CPU),
#ifdef CONFIG_HIGHMEM
-static ssize_t print_nodes_has_high_memory(struct sysdev_class *class,
- char *buf)
-{
- return print_nodes_state(N_HIGH_MEMORY, buf);
-}
-
-static SYSDEV_CLASS_ATTR(has_high_memory, 0444, print_nodes_has_high_memory,
- NULL);
+ _NODE_ATTR(has_high_memory, N_HIGH_MEMORY),
#endif
+};
-struct sysdev_class_attribute *node_state_attr[] = {
- &attr_possible,
- &attr_online,
- &attr_has_normal_memory,
+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,
#ifdef CONFIG_HIGHMEM
- &attr_has_high_memory,
+ &node_state_attr[4].attr,
#endif
- &attr_has_cpu,
+ NULL
};
-static int node_states_init(void)
-{
- int i;
- int err = 0;
-
- for (i = 0; i < NR_NODE_STATES; i++) {
- int ret;
- ret = sysdev_class_create_file(&node_class, node_state_attr[i]);
- if (!err)
- err = ret;
- }
- return err;
-}
-
#define NODE_CALLBACK_PRI 2 /* lower than SLAB */
static int __init register_node_type(void)
{
int ret;
+ 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);
if (!ret) {
- ret = node_states_init();
hotplug_memory_notifier(node_memory_callback,
NODE_CALLBACK_PRI);
}