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remove "struct subsystem" as it is no longer needed

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We need to work on cleaning up the relationship between kobjects, ksets and
ktypes.  The removal of 'struct subsystem' is the first step of this,
especially as it is not really needed at all.

Thanks to Kay for fixing the bugs in this patch.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman
2007-04-13 13:15:19 -07:00
parent 2609e7b9be
commit 823bccfc40
46 changed files with 231 additions and 292 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/device.h
+4 -4
View File
@@ -53,7 +53,7 @@ struct bus_type {
const char * name;
struct module * owner;
struct subsystem subsys;
struct kset subsys;
struct kset drivers;
struct kset devices;
struct klist klist_devices;
@@ -179,7 +179,7 @@ struct class {
const char * name;
struct module * owner;
struct subsystem subsys;
struct kset subsys;
struct list_head children;
struct list_head devices;
struct list_head interfaces;
@@ -559,8 +559,8 @@ extern void device_shutdown(void);
/* drivers/base/firmware.c */
extern int __must_check firmware_register(struct subsystem *);
extern void firmware_unregister(struct subsystem *);
extern int __must_check firmware_register(struct kset *);
extern void firmware_unregister(struct kset *);
/* debugging and troubleshooting/diagnostic helpers. */
extern const char *dev_driver_string(struct device *dev);
include/linux/fs.h
+1 -1
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@@ -1416,7 +1416,7 @@ extern void mnt_set_mountpoint(struct vfsmount *, struct dentry *,
extern int vfs_statfs(struct dentry *, struct kstatfs *);
/* /sys/fs */
extern struct subsystem fs_subsys;
extern struct kset fs_subsys;
#define FLOCK_VERIFY_READ 1
#define FLOCK_VERIFY_WRITE 2
include/linux/kobject.h
+25 -33
View File
@@ -124,7 +124,6 @@ struct kset_uevent_ops {
};
struct kset {
struct subsystem * subsys;
struct kobj_type * ktype;
struct list_head list;
spinlock_t list_lock;
@@ -171,32 +170,23 @@ extern struct kobject * kset_find_obj(struct kset *, const char *);
#define set_kset_name(str) .kset = { .kobj = { .name = str } }
struct subsystem {
struct kset kset;
};
#define decl_subsys(_name,_type,_uevent_ops) \
struct subsystem _name##_subsys = { \
.kset = { \
.kobj = { .name = __stringify(_name) }, \
.ktype = _type, \
.uevent_ops =_uevent_ops, \
} \
struct kset _name##_subsys = { \
.kobj = { .name = __stringify(_name) }, \
.ktype = _type, \
.uevent_ops =_uevent_ops, \
}
#define decl_subsys_name(_varname,_name,_type,_uevent_ops) \
struct subsystem _varname##_subsys = { \
.kset = { \
.kobj = { .name = __stringify(_name) }, \
.ktype = _type, \
.uevent_ops =_uevent_ops, \
} \
struct kset _varname##_subsys = { \
.kobj = { .name = __stringify(_name) }, \
.ktype = _type, \
.uevent_ops =_uevent_ops, \
}
/* The global /sys/kernel/ subsystem for people to chain off of */
extern struct subsystem kernel_subsys;
extern struct kset kernel_subsys;
/* The global /sys/hypervisor/ subsystem */
extern struct subsystem hypervisor_subsys;
extern struct kset hypervisor_subsys;
/**
* Helpers for setting the kset of registered objects.
@@ -214,7 +204,7 @@ extern struct subsystem hypervisor_subsys;
*/
#define kobj_set_kset_s(obj,subsys) \
(obj)->kobj.kset = &(subsys).kset
(obj)->kobj.kset = &(subsys)
/**
* kset_set_kset_s(obj,subsys) - set kset for embedded kset.
@@ -228,7 +218,7 @@ extern struct subsystem hypervisor_subsys;
*/
#define kset_set_kset_s(obj,subsys) \
(obj)->kset.kobj.kset = &(subsys).kset
(obj)->kset.kobj.kset = &(subsys)
/**
* subsys_set_kset(obj,subsys) - set kset for subsystem
@@ -241,29 +231,31 @@ extern struct subsystem hypervisor_subsys;
*/
#define subsys_set_kset(obj,_subsys) \
(obj)->subsys.kset.kobj.kset = &(_subsys).kset
(obj)->subsys.kobj.kset = &(_subsys)
extern void subsystem_init(struct subsystem *);
extern int __must_check subsystem_register(struct subsystem *);
extern void subsystem_unregister(struct subsystem *);
extern void subsystem_init(struct kset *);
extern int __must_check subsystem_register(struct kset *);
extern void subsystem_unregister(struct kset *);
static inline struct subsystem * subsys_get(struct subsystem * s)
static inline struct kset *subsys_get(struct kset *s)
{
return s ? container_of(kset_get(&s->kset),struct subsystem,kset) : NULL;
if (s)
return kset_get(s);
return NULL;
}
static inline void subsys_put(struct subsystem * s)
static inline void subsys_put(struct kset *s)
{
kset_put(&s->kset);
kset_put(s);
}
struct subsys_attribute {
struct attribute attr;
ssize_t (*show)(struct subsystem *, char *);
ssize_t (*store)(struct subsystem *, const char *, size_t);
ssize_t (*show)(struct kset *, char *);
ssize_t (*store)(struct kset *, const char *, size_t);
};
extern int __must_check subsys_create_file(struct subsystem * ,
extern int __must_check subsys_create_file(struct kset *,
struct subsys_attribute *);
#if defined(CONFIG_HOTPLUG)
include/linux/module.h
+1 -1
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@@ -568,7 +568,7 @@ struct device_driver;
#ifdef CONFIG_SYSFS
struct module;
extern struct subsystem module_subsys;
extern struct kset module_subsys;
int mod_sysfs_init(struct module *mod);
int mod_sysfs_setup(struct module *mod,
include/linux/pci_hotplug.h
+1 -1
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@@ -174,7 +174,7 @@ extern int pci_hp_register (struct hotplug_slot *slot);
extern int pci_hp_deregister (struct hotplug_slot *slot);
extern int __must_check pci_hp_change_slot_info (struct hotplug_slot *slot,
struct hotplug_slot_info *info);
extern struct subsystem pci_hotplug_slots_subsys;
extern struct kset pci_hotplug_slots_subsys;
/* PCI Setting Record (Type 0) */
struct hpp_type0 {