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sysdev: Use sysdev_class attribute arrays in node driver 

Convert the node driver to sysdev_class attribute arrays. This
greatly cleans up the code and remove a lot of code.

Saves ~150 bytes of code on x86-64.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Andi Kleen 2010-01-05 12:48:04 +01:00 committed by Greg Kroah-Hartman
parent e1a7e29a26
commit 3701cde6e3
1 changed files with 16 additions and 15 deletions
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31
drivers/base/node.c
View File

@ -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,
};
@ -569,29 +572,27 @@ static struct node_attr node_state_attr[] = {
#endif
};
static int node_states_init(void)
{
int i;
int err = 0;
BUILD_BUG_ON(ARRAY_SIZE(node_state_attr) != NR_NODE_STATES);
for (i = 0; i < NR_NODE_STATES; i++) {
int ret;
ret = sysdev_class_create_file(&node_class, &node_state_attr[i].attr);
if (!err)
err = ret;
}
return err;
}
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
&node_state_attr[4].attr,
#endif
NULL
};
#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);
}