diff options
Diffstat (limited to 'include/linux/kobject.h')
-rw-r--r-- | include/linux/kobject.h | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 5b08248fba72..8eb21f2f25e1 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -26,15 +26,14 @@ #include <linux/kernel.h> #include <asm/atomic.h> -#define KOBJ_NAME_LEN 20 - -#define HOTPLUG_PATH_LEN 256 +#define KOBJ_NAME_LEN 20 +#define UEVENT_HELPER_PATH_LEN 256 /* path to the userspace helper executed on an event */ -extern char hotplug_path[]; +extern char uevent_helper[]; -/* counter to tag the hotplug event, read only except for the kobject core */ -extern u64 hotplug_seqnum; +/* counter to tag the uevent, read only except for the kobject core */ +extern u64 uevent_seqnum; /* the actions here must match the proper string in lib/kobject_uevent.c */ typedef int __bitwise kobject_action_t; @@ -101,15 +100,14 @@ struct kobj_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. + * Each kset can support specific event variables; it can + * supress the event generation or add subsystem specific + * variables carried with the event. */ -struct kset_hotplug_ops { +struct kset_uevent_ops { int (*filter)(struct kset *kset, struct kobject *kobj); const char *(*name)(struct kset *kset, struct kobject *kobj); - int (*hotplug)(struct kset *kset, struct kobject *kobj, char **envp, + int (*uevent)(struct kset *kset, struct kobject *kobj, char **envp, int num_envp, char *buffer, int buffer_size); }; @@ -119,7 +117,7 @@ struct kset { struct list_head list; spinlock_t list_lock; struct kobject kobj; - struct kset_hotplug_ops * hotplug_ops; + struct kset_uevent_ops * uevent_ops; }; @@ -167,20 +165,20 @@ struct subsystem { struct rw_semaphore rwsem; }; -#define decl_subsys(_name,_type,_hotplug_ops) \ +#define decl_subsys(_name,_type,_uevent_ops) \ struct subsystem _name##_subsys = { \ .kset = { \ .kobj = { .name = __stringify(_name) }, \ .ktype = _type, \ - .hotplug_ops =_hotplug_ops, \ + .uevent_ops =_uevent_ops, \ } \ } -#define decl_subsys_name(_varname,_name,_type,_hotplug_ops) \ +#define decl_subsys_name(_varname,_name,_type,_uevent_ops) \ struct subsystem _varname##_subsys = { \ .kset = { \ .kobj = { .name = __stringify(_name) }, \ .ktype = _type, \ - .hotplug_ops =_hotplug_ops, \ + .uevent_ops =_uevent_ops, \ } \ } @@ -256,16 +254,16 @@ 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); +void kobject_uevent(struct kobject *kobj, enum kobject_action action); -int add_hotplug_env_var(char **envp, int num_envp, int *cur_index, +int add_uevent_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 void kobject_uevent(struct kobject *kobj, enum kobject_action action) { } -static inline int add_hotplug_env_var(char **envp, int num_envp, int *cur_index, +static inline int add_uevent_var(char **envp, int num_envp, int *cur_index, char *buffer, int buffer_size, int *cur_len, const char *format, ...) { return 0; } |