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sysdev: Convert node driver class attributes to be data driven 

Using the new attribute argument convert the node driver class
attributes to carry the node state. Then use a shared function to do
what a lot of individual functions did before.

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 12:47:59 +01:00 committed by Greg Kroah-Hartman
parent c9be0a36f9
commit b15f562fc2
1 changed files with 19 additions and 48 deletions
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65
drivers/base/node.c
View File

@ -544,59 +544,29 @@ static ssize_t print_nodes_state(enum node_states state, char *buf)
return n;
}
static ssize_t print_nodes_possible(struct sysdev_class *class,
struct node_attr {
struct sysdev_class_attribute attr;
enum node_states state;
};
static ssize_t show_node_state(struct sysdev_class *class,
struct sysdev_class_attribute *attr, char *buf)
{
return print_nodes_state(N_POSSIBLE, buf);
struct node_attr *na = container_of(attr, struct node_attr, attr);
return print_nodes_state(na->state, buf);
}
static ssize_t print_nodes_online(struct sysdev_class *class,
struct sysdev_class_attribute *attr,
char *buf)
{
return print_nodes_state(N_ONLINE, buf);
}
static ssize_t print_nodes_has_normal_memory(struct sysdev_class *class,
struct sysdev_class_attribute *attr,
char *buf)
{
return print_nodes_state(N_NORMAL_MEMORY, buf);
}
static ssize_t print_nodes_has_cpu(struct sysdev_class *class,
struct sysdev_class_attribute *attr,
char *buf)
{
return print_nodes_state(N_CPU, 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,
struct sysdev_class_attribute *attr,
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,
#ifdef CONFIG_HIGHMEM
&attr_has_high_memory,
#endif
&attr_has_cpu,
};
static int node_states_init(void)
@ -604,9 +574,10 @@ 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]);
ret = sysdev_class_create_file(&node_class, &node_state_attr[i].attr);
if (!err)
err = ret;
}