[PATCH] Driver core: unregister_node() for hotplug use

This adds a generic function 'unregister_node()'.
It is used to remove objects of a node going away
for hotplug.  All the devices on the node must be
unregistered before calling this function.

Signed-off-by: Keiichiro Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff -puN drivers/base/node.c~numa_hp_base drivers/base/node.c
This commit is contained in:
Keiichiro Tokunaga 2005-05-08 21:28:53 +09:00 committed by Greg Kroah-Hartman
parent f409661877
commit 4b45099b75
2 changed files with 19 additions and 2 deletions

View File

@ -136,7 +136,7 @@ static SYSDEV_ATTR(distance, S_IRUGO, node_read_distance, NULL);
* *
* Initialize and register the node device. * Initialize and register the node device.
*/ */
int __init register_node(struct node *node, int num, struct node *parent) int register_node(struct node *node, int num, struct node *parent)
{ {
int error; int error;
@ -153,8 +153,24 @@ int __init register_node(struct node *node, int num, struct node *parent)
return error; return error;
} }
/**
* unregister_node - unregister a node device
* @node: node going away
*
* Unregisters a node device @node. All the devices on the node must be
* unregistered before calling this function.
*/
void unregister_node(struct node *node)
{
sysdev_remove_file(&node->sysdev, &attr_cpumap);
sysdev_remove_file(&node->sysdev, &attr_meminfo);
sysdev_remove_file(&node->sysdev, &attr_numastat);
sysdev_remove_file(&node->sysdev, &attr_distance);
int __init register_node_type(void) sysdev_unregister(&node->sysdev);
}
static int __init register_node_type(void)
{ {
return sysdev_class_register(&node_class); return sysdev_class_register(&node_class);
} }

View File

@ -27,6 +27,7 @@ struct node {
}; };
extern int register_node(struct node *, int, struct node *); extern int register_node(struct node *, int, struct node *);
extern void unregister_node(struct node *node);
#define to_node(sys_device) container_of(sys_device, struct node, sysdev) #define to_node(sys_device) container_of(sys_device, struct node, sysdev)