117 static void uid_hash_insert(struct user_struct *up, struct hlist_head *hashent)  in uid_hash_insert()  argument
119 	hlist_add_head(&up->uidhash_node, hashent);  in uid_hash_insert()
122 static void uid_hash_remove(struct user_struct *up)  in uid_hash_remove()  argument
124 	hlist_del_init(&up->uidhash_node);  in uid_hash_remove()
141 static int user_epoll_alloc(struct user_struct *up)  in user_epoll_alloc()  argument
144 	return percpu_counter_init(&up->epoll_watches, 0, GFP_KERNEL);  in user_epoll_alloc()
150 static void user_epoll_free(struct user_struct *up)  in user_epoll_free()  argument
153 	percpu_counter_destroy(&up->epoll_watches);  in user_epoll_free()
161 static void free_user(struct user_struct *up, unsigned long flags)  in free_user()  argument
164 	uid_hash_remove(up);  in free_user()
166 	user_epoll_free(up);  in free_user()
167 	kmem_cache_free(uid_cachep, up);  in free_user()
187 void free_uid(struct user_struct *up)  in free_uid()  argument
191 	if (!up)  in free_uid()
194 	if (refcount_dec_and_lock_irqsave(&up->__count, &uidhash_lock, &flags))  in free_uid()
195 		free_user(up, flags);  in free_uid()
202 	struct user_struct *up, *new;  in alloc_uid()  local
205 	up = uid_hash_find(uid, hashent);  in alloc_uid()
208 	if (!up) {  in alloc_uid()
227 		up = uid_hash_find(uid, hashent);  in alloc_uid()
228 		if (up) {  in alloc_uid()
233 			up = new;  in alloc_uid()
238 	return up;  in alloc_uid()