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[PATCH] kobject_add_dir

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Adding kobject_add_dir() function which creates a subdirectory
for a given kobject.

Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jun'ichi Nomura 2006-03-13 17:14:25 -05:00 committed by Greg Kroah-Hartman
parent dd308bc355
commit 7423172a50
2 changed files with 40 additions and 0 deletions
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2
include/linux/kobject.h
View File

@ -80,6 +80,8 @@ extern void kobject_unregister(struct kobject *);
extern struct kobject * kobject_get(struct kobject *);
extern void kobject_put(struct kobject *);
extern struct kobject *kobject_add_dir(struct kobject *, const char *);
extern char * kobject_get_path(struct kobject *, gfp_t);
struct kobj_type {

38
lib/kobject.c
View File

@ -385,6 +385,44 @@ void kobject_put(struct kobject * kobj)
}
static void dir_release(struct kobject *kobj)
{
kfree(kobj);
}
static struct kobj_type dir_ktype = {
.release = dir_release,
.sysfs_ops = NULL,
.default_attrs = NULL,
};
/**
* kobject_add_dir - add sub directory of object.
* @parent: object in which a directory is created.
* @name: directory name.
*
* Add a plain directory object as child of given object.
*/
struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
{
struct kobject *k;
if (!parent)
return NULL;
k = kzalloc(sizeof(*k), GFP_KERNEL);
if (!k)
return NULL;
k->parent = parent;
k->ktype = &dir_ktype;
kobject_set_name(k, name);
kobject_register(k);
return k;
}
EXPORT_SYMBOL_GPL(kobject_add_dir);
/**
* kset_init - initialize a kset for use
* @k: kset