75 struct user_namespace {  struct
79 	struct user_namespace	*parent;  argument
122 	struct user_namespace *ns;  argument
129 extern struct user_namespace init_user_ns;
132 bool setup_userns_sysctls(struct user_namespace *ns);
133 void retire_userns_sysctls(struct user_namespace *ns);
134 struct ucounts *inc_ucount(struct user_namespace *ns, kuid_t uid, enum ucount_type type);
136 struct ucounts *alloc_ucounts(struct user_namespace *ns, kuid_t uid);
152 static inline long get_userns_rlimit_max(struct user_namespace *ns, enum rlimit_type type)  in get_userns_rlimit_max()
157 static inline void set_userns_rlimit_max(struct user_namespace *ns,  in set_userns_rlimit_max()
165 static inline struct user_namespace *get_user_ns(struct user_namespace *ns)  in get_user_ns()
174 extern void __put_user_ns(struct user_namespace *ns);
176 static inline void put_user_ns(struct user_namespace *ns)  in put_user_ns()
191 extern bool userns_may_setgroups(const struct user_namespace *ns);
192 extern bool in_userns(const struct user_namespace *ancestor,
193 		       const struct user_namespace *child);
194 extern bool current_in_userns(const struct user_namespace *target_ns);
198 static inline struct user_namespace *get_user_ns(struct user_namespace *ns)  in get_user_ns()
216 static inline void put_user_ns(struct user_namespace *ns)  in put_user_ns()
220 static inline bool userns_may_setgroups(const struct user_namespace *ns)  in userns_may_setgroups()
225 static inline bool in_userns(const struct user_namespace *ancestor,  in in_userns()
226 			     const struct user_namespace *child)  in in_userns()
231 static inline bool current_in_userns(const struct user_namespace *target_ns)  in current_in_userns()