56 	struct key_user *candidate = NULL, *user;  in key_user_lookup()  local
67 		user = rb_entry(parent, struct key_user, node);  in key_user_lookup()
69 		if (uid_lt(uid, user->uid))  in key_user_lookup()
71 		else if (uid_gt(uid, user->uid))  in key_user_lookup()
83 		user = NULL;  in key_user_lookup()
108 	user = candidate;  in key_user_lookup()
113 	atomic_inc(&user->usage);  in key_user_lookup()
117 	return user;  in key_user_lookup()
123 void key_user_put(struct key_user *user)  in key_user_put()  argument
125 	if (atomic_dec_and_lock(&user->usage, &key_user_lock)) {  in key_user_put()
126 		rb_erase(&user->node, &key_user_tree);  in key_user_put()
129 		kfree(user);  in key_user_put()
228 	struct key_user *user = NULL;  in key_alloc()  local
249 	user = key_user_lookup(uid);  in key_alloc()
250 	if (!user)  in key_alloc()
261 		spin_lock(&user->lock);  in key_alloc()
263 			if (user->qnkeys + 1 >= maxkeys ||  in key_alloc()
264 			    user->qnbytes + quotalen >= maxbytes ||  in key_alloc()
265 			    user->qnbytes + quotalen < user->qnbytes)  in key_alloc()
269 		user->qnkeys++;  in key_alloc()
270 		user->qnbytes += quotalen;  in key_alloc()
271 		spin_unlock(&user->lock);  in key_alloc()
288 	key->user = user;  in key_alloc()
310 	atomic_inc(&user->nkeys);  in key_alloc()
320 		spin_lock(&user->lock);  in key_alloc()
321 		user->qnkeys--;  in key_alloc()
322 		user->qnbytes -= quotalen;  in key_alloc()
323 		spin_unlock(&user->lock);  in key_alloc()
325 	key_user_put(user);  in key_alloc()
333 		spin_lock(&user->lock);  in key_alloc()
334 		user->qnkeys--;  in key_alloc()
335 		user->qnbytes -= quotalen;  in key_alloc()
336 		spin_unlock(&user->lock);  in key_alloc()
338 	key_user_put(user);  in key_alloc()
344 	spin_unlock(&user->lock);  in key_alloc()
345 	key_user_put(user);  in key_alloc()
371 		unsigned maxbytes = uid_eq(key->user->uid, GLOBAL_ROOT_UID) ?  in key_payload_reserve()
374 		spin_lock(&key->user->lock);  in key_payload_reserve()
377 		    (key->user->qnbytes + delta >= maxbytes ||  in key_payload_reserve()
378 		     key->user->qnbytes + delta < key->user->qnbytes)) {  in key_payload_reserve()
382 			key->user->qnbytes += delta;  in key_payload_reserve()
385 		spin_unlock(&key->user->lock);  in key_payload_reserve()
425 			atomic_inc(&key->user->nikeys);  in __key_instantiate_and_link()
556 		atomic_inc(&key->user->nikeys);  in key_reject_and_link()