121 static void uid_hash_insert(struct user_struct *up, struct hlist_head *hashent)  in uid_hash_insert()  argument
123 	hlist_add_head(&up->uidhash_node, hashent);  in uid_hash_insert()
126 static void uid_hash_remove(struct user_struct *up)  in uid_hash_remove()  argument
128 	hlist_del_init(&up->uidhash_node);  in uid_hash_remove()
145 static int user_epoll_alloc(struct user_struct *up)  in user_epoll_alloc()  argument
148 	return percpu_counter_init(&up->epoll_watches, 0, GFP_KERNEL);  in user_epoll_alloc()
154 static void user_epoll_free(struct user_struct *up)  in user_epoll_free()  argument
157 	percpu_counter_destroy(&up->epoll_watches);  in user_epoll_free()
165 static void free_user(struct user_struct *up, unsigned long flags)  in free_user()  argument
168 	uid_hash_remove(up);  in free_user()
170 	user_epoll_free(up);  in free_user()
171 	kmem_cache_free(uid_cachep, up);  in free_user()
191 void free_uid(struct user_struct *up)  in free_uid()  argument
195 	if (!up)  in free_uid()
198 	if (refcount_dec_and_lock_irqsave(&up->__count, &uidhash_lock, &flags))  in free_uid()
199 		free_user(up, flags);  in free_uid()
206 	struct user_struct *up, *new;  in alloc_uid()  local
209 	up = uid_hash_find(uid, hashent);  in alloc_uid()
212 	if (!up) {  in alloc_uid()
231 		up = uid_hash_find(uid, hashent);  in alloc_uid()
232 		if (up) {  in alloc_uid()
237 			up = new;  in alloc_uid()
242 	return up;  in alloc_uid()