Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
new file mode 100644
index 0000000..765d660
--- /dev/null
+++ b/include/linux/kobject.h
@@ -0,0 +1,259 @@
+/*
+ * kobject.h - generic kernel object infrastructure.
+ *
+ * Copyright (c) 2002-2003 Patrick Mochel
+ * Copyright (c) 2002-2003 Open Source Development Labs
+ *
+ * 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.
+ */
+
+#ifndef _KOBJECT_H_
+#define _KOBJECT_H_
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/sysfs.h>
+#include <linux/spinlock.h>
+#include <linux/rwsem.h>
+#include <linux/kref.h>
+#include <linux/kobject_uevent.h>
+#include <linux/kernel.h>
+#include <asm/atomic.h>
+
+#define KOBJ_NAME_LEN 20
+
+/* counter to tag the hotplug event, read only except for the kobject core */
+extern u64 hotplug_seqnum;
+
+struct kobject {
+ char * k_name;
+ char name[KOBJ_NAME_LEN];
+ struct kref kref;
+ struct list_head entry;
+ struct kobject * parent;
+ struct kset * kset;
+ struct kobj_type * ktype;
+ struct dentry * dentry;
+};
+
+extern int kobject_set_name(struct kobject *, const char *, ...)
+ __attribute__((format(printf,2,3)));
+
+static inline char * kobject_name(struct kobject * kobj)
+{
+ return kobj->k_name;
+}
+
+extern void kobject_init(struct kobject *);
+extern void kobject_cleanup(struct kobject *);
+
+extern int kobject_add(struct kobject *);
+extern void kobject_del(struct kobject *);
+
+extern int kobject_rename(struct kobject *, char *new_name);
+
+extern int kobject_register(struct kobject *);
+extern void kobject_unregister(struct kobject *);
+
+extern struct kobject * kobject_get(struct kobject *);
+extern void kobject_put(struct kobject *);
+
+extern char * kobject_get_path(struct kobject *, int);
+
+struct kobj_type {
+ void (*release)(struct kobject *);
+ struct sysfs_ops * sysfs_ops;
+ struct attribute ** default_attrs;
+};
+
+
+/**
+ * kset - a set of kobjects of a specific type, belonging
+ * to a specific subsystem.
+ *
+ * All kobjects of a kset should be embedded in an identical
+ * type. This type may have a descriptor, which the kset points
+ * to. This allows there to exist sets of objects of the same
+ * type in different subsystems.
+ *
+ * A subsystem does not have to be a list of only one type
+ * of object; multiple ksets can belong to one subsystem. All
+ * ksets of a subsystem share the subsystem's lock.
+ *
+ * Each kset can support hotplugging; if it does, it will be given
+ * the opportunity to filter out specific kobjects from being
+ * reported, as well as to add its own "data" elements to the
+ * environment being passed to the hotplug helper.
+ */
+struct kset_hotplug_ops {
+ int (*filter)(struct kset *kset, struct kobject *kobj);
+ char *(*name)(struct kset *kset, struct kobject *kobj);
+ int (*hotplug)(struct kset *kset, struct kobject *kobj, char **envp,
+ int num_envp, char *buffer, int buffer_size);
+};
+
+struct kset {
+ struct subsystem * subsys;
+ struct kobj_type * ktype;
+ struct list_head list;
+ spinlock_t list_lock;
+ struct kobject kobj;
+ struct kset_hotplug_ops * hotplug_ops;
+};
+
+
+extern void kset_init(struct kset * k);
+extern int kset_add(struct kset * k);
+extern int kset_register(struct kset * k);
+extern void kset_unregister(struct kset * k);
+
+static inline struct kset * to_kset(struct kobject * kobj)
+{
+ return kobj ? container_of(kobj,struct kset,kobj) : NULL;
+}
+
+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)
+{
+ kobject_put(&k->kobj);
+}
+
+static inline struct kobj_type * get_ktype(struct kobject * k)
+{
+ if (k->kset && k->kset->ktype)
+ return k->kset->ktype;
+ else
+ return k->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 = { .name = str } }
+
+
+
+struct subsystem {
+ struct kset kset;
+ struct rw_semaphore rwsem;
+};
+
+#define decl_subsys(_name,_type,_hotplug_ops) \
+struct subsystem _name##_subsys = { \
+ .kset = { \
+ .kobj = { .name = __stringify(_name) }, \
+ .ktype = _type, \
+ .hotplug_ops =_hotplug_ops, \
+ } \
+}
+#define decl_subsys_name(_varname,_name,_type,_hotplug_ops) \
+struct subsystem _varname##_subsys = { \
+ .kset = { \
+ .kobj = { .name = __stringify(_name) }, \
+ .ktype = _type, \
+ .hotplug_ops =_hotplug_ops, \
+ } \
+}
+
+/* The global /sys/kernel/ subsystem for people to chain off of */
+extern struct subsystem kernel_subsys;
+
+/**
+ * Helpers for setting the kset of registered objects.
+ * Often, a registered object belongs to a kset embedded in a
+ * subsystem. These do no magic, just make the resulting code
+ * easier to follow.
+ */
+
+/**
+ * kobj_set_kset_s(obj,subsys) - set kset for embedded kobject.
+ * @obj: ptr to some object type.
+ * @subsys: a subsystem object (not a ptr).
+ *
+ * Can be used for any object type with an embedded ->kobj.
+ */
+
+#define kobj_set_kset_s(obj,subsys) \
+ (obj)->kobj.kset = &(subsys).kset
+
+/**
+ * kset_set_kset_s(obj,subsys) - set kset for embedded kset.
+ * @obj: ptr to some object type.
+ * @subsys: a subsystem object (not a ptr).
+ *
+ * Can be used for any object type with an embedded ->kset.
+ * Sets the kset of @obj's embedded kobject (via its embedded
+ * kset) to @subsys.kset. This makes @obj a member of that
+ * kset.
+ */
+
+#define kset_set_kset_s(obj,subsys) \
+ (obj)->kset.kobj.kset = &(subsys).kset
+
+/**
+ * subsys_set_kset(obj,subsys) - set kset for subsystem
+ * @obj: ptr to some object type.
+ * @subsys: a subsystem object (not a ptr).
+ *
+ * Can be used for any object type with an embedded ->subsys.
+ * Sets the kset of @obj's kobject to @subsys.kset. This makes
+ * the object a member of that kset.
+ */
+
+#define subsys_set_kset(obj,_subsys) \
+ (obj)->subsys.kset.kobj.kset = &(_subsys).kset
+
+extern void subsystem_init(struct subsystem *);
+extern int subsystem_register(struct subsystem *);
+extern void subsystem_unregister(struct subsystem *);
+
+static inline struct subsystem * subsys_get(struct subsystem * s)
+{
+ return s ? container_of(kset_get(&s->kset),struct subsystem,kset) : NULL;
+}
+
+static inline void subsys_put(struct subsystem * s)
+{
+ kset_put(&s->kset);
+}
+
+struct subsys_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct subsystem *, char *);
+ ssize_t (*store)(struct subsystem *, const char *, size_t);
+};
+
+extern int subsys_create_file(struct subsystem * , struct subsys_attribute *);
+extern void subsys_remove_file(struct subsystem * , struct subsys_attribute *);
+
+#ifdef CONFIG_HOTPLUG
+void kobject_hotplug(struct kobject *kobj, enum kobject_action action);
+int add_hotplug_env_var(char **envp, int num_envp, int *cur_index,
+ char *buffer, int buffer_size, int *cur_len,
+ const char *format, ...)
+ __attribute__((format (printf, 7, 8)));
+#else
+static inline void kobject_hotplug(struct kobject *kobj, enum kobject_action action) { }
+static inline int add_hotplug_env_var(char **envp, int num_envp, int *cur_index,
+ char *buffer, int buffer_size, int *cur_len,
+ const char *format, ...)
+{ return 0; }
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* _KOBJECT_H_ */