*
* Copyright (c) 2002-2003 Patrick Mochel
* Copyright (c) 2002-2003 Open Source Development Labs
- * Copyright (c) 2006-2007 Greg Kroah-Hartman <greg@kroah.com>
- * Copyright (c) 2006-2007 Novell Inc.
+ * Copyright (c) 2006-2008 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (c) 2006-2008 Novell Inc.
*
* This file is released under the GPLv2.
*
- *
* Please read Documentation/kobject.txt before using the kobject
* interface, ESPECIALLY the parts about reference counts and object
- * destructors.
+ * destructors.
*/
#ifndef _KOBJECT_H_
#define _KOBJECT_H_
-#ifdef __KERNEL__
-
#include <linux/types.h>
#include <linux/list.h>
#include <linux/sysfs.h>
#include <linux/compiler.h>
#include <linux/spinlock.h>
#include <linux/kref.h>
+#include <linux/kobject_ns.h>
#include <linux/kernel.h>
#include <linux/wait.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
-#define KOBJ_NAME_LEN 20
#define UEVENT_HELPER_PATH_LEN 256
#define UEVENT_NUM_ENVP 32 /* number of env pointers */
#define UEVENT_BUFFER_SIZE 2048 /* buffer for the variables */
};
struct kobject {
- const char * k_name;
- struct kref kref;
+ const char *name;
struct list_head entry;
- struct kobject * parent;
- struct kset * kset;
- struct kobj_type * ktype;
- struct sysfs_dirent * sd;
+ struct kobject *parent;
+ struct kset *kset;
+ struct kobj_type *ktype;
+ struct sysfs_dirent *sd;
+ struct kref kref;
+ unsigned int state_initialized:1;
+ unsigned int state_in_sysfs:1;
+ unsigned int state_add_uevent_sent:1;
+ unsigned int state_remove_uevent_sent:1;
+ unsigned int uevent_suppress:1;
};
-extern int kobject_set_name(struct kobject *, const char *, ...)
- __attribute__((format(printf,2,3)));
+extern int kobject_set_name(struct kobject *kobj, const char *name, ...)
+ __attribute__((format(printf, 2, 3)));
+extern int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
+ va_list vargs);
-static inline const char * kobject_name(const struct kobject * kobj)
+static inline const char *kobject_name(const struct kobject *kobj)
{
- return kobj->k_name;
+ return kobj->name;
}
-extern void kobject_init(struct kobject *);
-extern void kobject_init_ng(struct kobject *kobj, struct kobj_type *ktype);
-extern int __must_check kobject_add(struct kobject *);
-extern int __must_check kobject_add_ng(struct kobject *kobj,
- struct kobject *parent,
- const char *fmt, ...);
+extern void kobject_init(struct kobject *kobj, struct kobj_type *ktype);
+extern int __must_check kobject_add(struct kobject *kobj,
+ struct kobject *parent,
+ const char *fmt, ...)
+ __attribute__((format(printf, 3, 4)));
extern int __must_check kobject_init_and_add(struct kobject *kobj,
struct kobj_type *ktype,
struct kobject *parent,
- const char *fmt, ...);
+ const char *fmt, ...)
+ __attribute__((format(printf, 4, 5)));
-extern void kobject_del(struct kobject *);
+extern void kobject_del(struct kobject *kobj);
extern struct kobject * __must_check kobject_create(void);
extern struct kobject * __must_check kobject_create_and_add(const char *name,
extern int __must_check kobject_rename(struct kobject *, const char *new_name);
extern int __must_check kobject_move(struct kobject *, struct kobject *);
-extern int __must_check kobject_register(struct kobject *);
-extern void kobject_unregister(struct kobject *);
+extern struct kobject *kobject_get(struct kobject *kobj);
+extern void kobject_put(struct kobject *kobj);
-extern struct kobject * kobject_get(struct kobject *);
-extern void kobject_put(struct kobject *);
-
-extern char * kobject_get_path(struct kobject *, gfp_t);
+extern char *kobject_get_path(struct kobject *kobj, gfp_t flag);
struct kobj_type {
- void (*release)(struct kobject *);
- struct sysfs_ops * sysfs_ops;
- struct attribute ** default_attrs;
+ void (*release)(struct kobject *kobj);
+ const struct sysfs_ops *sysfs_ops;
+ struct attribute **default_attrs;
+ const struct kobj_ns_type_operations *(*child_ns_type)(struct kobject *kobj);
+ const void *(*namespace)(struct kobject *kobj);
};
struct kobj_uevent_env {
};
struct kset_uevent_ops {
- int (*filter)(struct kset *kset, struct kobject *kobj);
- const char *(*name)(struct kset *kset, struct kobject *kobj);
- int (*uevent)(struct kset *kset, struct kobject *kobj,
+ int (* const filter)(struct kset *kset, struct kobject *kobj);
+ const char *(* const name)(struct kset *kset, struct kobject *kobj);
+ int (* const uevent)(struct kset *kset, struct kobject *kobj,
struct kobj_uevent_env *env);
};
const char *buf, size_t count);
};
-extern struct sysfs_ops kobj_sysfs_ops;
+extern const struct sysfs_ops kobj_sysfs_ops;
+
+struct sock;
/**
* struct kset - a set of kobjects of a specific type, belonging to a specific subsystem.
* desired.
*/
struct kset {
- struct list_head list;
- spinlock_t list_lock;
- struct kobject kobj;
- struct kset_uevent_ops *uevent_ops;
+ struct list_head list;
+ spinlock_t list_lock;
+ struct kobject kobj;
+ const struct kset_uevent_ops *uevent_ops;
};
-extern void kset_init(struct kset * k);
-extern int __must_check kset_add(struct kset * k);
-extern int __must_check kset_register(struct kset * k);
-extern void kset_unregister(struct kset * k);
+extern void kset_init(struct kset *kset);
+extern int __must_check kset_register(struct kset *kset);
+extern void kset_unregister(struct kset *kset);
extern struct kset * __must_check kset_create_and_add(const char *name,
- struct kset_uevent_ops *u,
+ const struct kset_uevent_ops *u,
struct kobject *parent_kobj);
-static inline struct kset * to_kset(struct kobject * kobj)
+static inline struct kset *to_kset(struct kobject *kobj)
{
- return kobj ? container_of(kobj,struct kset,kobj) : NULL;
+ return kobj ? container_of(kobj, struct kset, kobj) : NULL;
}
-static inline struct kset * kset_get(struct kset * k)
+static inline struct kset *kset_get(struct kset *k)
{
return k ? to_kset(kobject_get(&k->kobj)) : NULL;
}
-static inline void kset_put(struct kset * k)
+static inline void kset_put(struct kset *k)
{
kobject_put(&k->kobj);
}
return kobj->ktype;
}
-extern struct kobject * kset_find_obj(struct kset *, const char *);
-
-
-/*
- * Use this when initializing an embedded kset with no other
- * fields to initialize.
- */
-#define set_kset_name(str) .kset = { .kobj = { .k_name = str } }
-
-
-#define decl_subsys(_name,_uevent_ops) \
-struct kset _name##_subsys = { \
- .kobj = { .k_name = __stringify(_name) }, \
- .uevent_ops =_uevent_ops, \
-}
+extern struct kobject *kset_find_obj(struct kset *, const char *);
+extern struct kobject *kset_find_obj_hinted(struct kset *, const char *,
+ struct kobject *);
-/* The global /sys/kernel/ kset for people to chain off of */
-extern struct kset *kernel_kset;
+/* The global /sys/kernel/ kobject for people to chain off of */
+extern struct kobject *kernel_kobj;
+/* The global /sys/kernel/mm/ kobject for people to chain off of */
+extern struct kobject *mm_kobj;
/* The global /sys/hypervisor/ kobject for people to chain off of */
extern struct kobject *hypervisor_kobj;
-/* The global /sys/power/ kset for people to chain off of */
-extern struct kset *power_kset;
-/* The global /sys/firmware/ kset for people to chain off of */
-extern struct kset *firmware_kset;
-
-extern int __must_check subsystem_register(struct kset *);
-extern void subsystem_unregister(struct kset *);
-
-struct subsys_attribute {
- struct attribute attr;
- ssize_t (*show)(struct kset *, char *);
- ssize_t (*store)(struct kset *, const char *, size_t);
-};
-
-extern int __must_check subsys_create_file(struct kset *,
- struct subsys_attribute *);
+/* The global /sys/power/ kobject for people to chain off of */
+extern struct kobject *power_kobj;
+/* The global /sys/firmware/ kobject for people to chain off of */
+extern struct kobject *firmware_kobj;
#if defined(CONFIG_HOTPLUG)
int kobject_uevent(struct kobject *kobj, enum kobject_action action);
int kobject_action_type(const char *buf, size_t count,
enum kobject_action *type);
#else
-static inline int kobject_uevent(struct kobject *kobj, enum kobject_action action)
+static inline int kobject_uevent(struct kobject *kobj,
+ enum kobject_action action)
{ return 0; }
static inline int kobject_uevent_env(struct kobject *kobj,
enum kobject_action action,
char *envp[])
{ return 0; }
-static inline int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...)
+static inline __attribute__((format(printf, 2, 3)))
+int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...)
{ return 0; }
static inline int kobject_action_type(const char *buf, size_t count,
- enum kobject_action *type)
+ enum kobject_action *type)
{ return -EINVAL; }
#endif
-#endif /* __KERNEL__ */
#endif /* _KOBJECT_H_ */
Code Review / linux-2.6.git / blobdiff