24 static struct ucounts *inc_uts_namespaces(struct user_namespace *ns)  in inc_uts_namespaces()  argument
26 	return inc_ucount(ns, current_euid(), UCOUNT_UTS_NAMESPACES);  in inc_uts_namespaces()
52 	struct uts_namespace *ns;  in clone_uts_ns()  local
62 	ns = create_uts_ns();  in clone_uts_ns()
63 	if (!ns)  in clone_uts_ns()
66 	err = ns_alloc_inum(&ns->ns);  in clone_uts_ns()
70 	ns->ucounts = ucounts;  in clone_uts_ns()
71 	ns->ns.ops = &utsns_operations;  in clone_uts_ns()
74 	memcpy(&ns->name, &old_ns->name, sizeof(ns->name));  in clone_uts_ns()
75 	ns->user_ns = get_user_ns(user_ns);  in clone_uts_ns()
77 	return ns;  in clone_uts_ns()
80 	kmem_cache_free(uts_ns_cache, ns);  in clone_uts_ns()
112 	struct uts_namespace *ns;  in free_uts_ns()  local
114 	ns = container_of(kref, struct uts_namespace, kref);  in free_uts_ns()
115 	dec_uts_namespaces(ns->ucounts);  in free_uts_ns()
116 	put_user_ns(ns->user_ns);  in free_uts_ns()
117 	ns_free_inum(&ns->ns);  in free_uts_ns()
118 	kmem_cache_free(uts_ns_cache, ns);  in free_uts_ns()
121 static inline struct uts_namespace *to_uts_ns(struct ns_common *ns)  in to_uts_ns()  argument
123 	return container_of(ns, struct uts_namespace, ns);  in to_uts_ns()
128 	struct uts_namespace *ns = NULL;  in utsns_get()  local
134 		ns = nsproxy->uts_ns;  in utsns_get()
135 		get_uts_ns(ns);  in utsns_get()
139 	return ns ? &ns->ns : NULL;  in utsns_get()
142 static void utsns_put(struct ns_common *ns)  in utsns_put()  argument
144 	put_uts_ns(to_uts_ns(ns));  in utsns_put()
149 	struct uts_namespace *ns = to_uts_ns(new);  in utsns_install()  local
151 	if (!ns_capable(ns->user_ns, CAP_SYS_ADMIN) ||  in utsns_install()
155 	get_uts_ns(ns);  in utsns_install()
157 	nsproxy->uts_ns = ns;  in utsns_install()
161 static struct user_namespace *utsns_owner(struct ns_common *ns)  in utsns_owner()  argument
163 	return to_uts_ns(ns)->user_ns;  in utsns_owner()