extern struct ctl_table usermodehelper_table[];
+enum umh_disable_depth {
+ UMH_ENABLED = 0,
+ UMH_FREEZING,
+ UMH_DISABLED,
+};
+
extern void usermodehelper_init(void);
-extern int usermodehelper_disable(void);
-extern void usermodehelper_enable(void);
-extern bool usermodehelper_is_disabled(void);
-extern void read_lock_usermodehelper(void);
-extern void read_unlock_usermodehelper(void);
+extern int __usermodehelper_disable(enum umh_disable_depth depth);
+extern void __usermodehelper_set_disable_depth(enum umh_disable_depth depth);
+
+static inline int usermodehelper_disable(void)
+{
+ return __usermodehelper_disable(UMH_DISABLED);
+}
+
+static inline void usermodehelper_enable(void)
+{
+ __usermodehelper_set_disable_depth(UMH_ENABLED);
+}
+
+extern int usermodehelper_read_trylock(void);
+extern long usermodehelper_read_lock_wait(long timeout);
+extern void usermodehelper_read_unlock(void);
#endif /* __LINUX_KMOD_H__ */