52 	struct key_user *candidate = NULL, *user;  in key_user_lookup()  local
63 		user = rb_entry(parent, struct key_user, node);  in key_user_lookup()
65 		if (uid_lt(uid, user->uid))  in key_user_lookup()
67 		else if (uid_gt(uid, user->uid))  in key_user_lookup()
79 		user = NULL;  in key_user_lookup()
104 	user = candidate;  in key_user_lookup()
109 	refcount_inc(&user->usage);  in key_user_lookup()
113 	return user;  in key_user_lookup()
119 void key_user_put(struct key_user *user)  in key_user_put()  argument
121 	if (refcount_dec_and_lock(&user->usage, &key_user_lock)) {  in key_user_put()
122 		rb_erase(&user->node, &key_user_tree);  in key_user_put()
125 		kfree(user);  in key_user_put()
229 	struct key_user *user = NULL;  in key_alloc()  local
251 	user = key_user_lookup(uid);  in key_alloc()
252 	if (!user)  in key_alloc()
263 		spin_lock_irqsave(&user->lock, irqflags);  in key_alloc()
265 			if (user->qnkeys + 1 > maxkeys ||  in key_alloc()
266 			    user->qnbytes + quotalen > maxbytes ||  in key_alloc()
267 			    user->qnbytes + quotalen < user->qnbytes)  in key_alloc()
271 		user->qnkeys++;  in key_alloc()
272 		user->qnbytes += quotalen;  in key_alloc()
273 		spin_unlock_irqrestore(&user->lock, irqflags);  in key_alloc()
291 	key->user = user;  in key_alloc()
322 	atomic_inc(&user->nkeys);  in key_alloc()
332 		spin_lock_irqsave(&user->lock, irqflags);  in key_alloc()
333 		user->qnkeys--;  in key_alloc()
334 		user->qnbytes -= quotalen;  in key_alloc()
335 		spin_unlock_irqrestore(&user->lock, irqflags);  in key_alloc()
337 	key_user_put(user);  in key_alloc()
345 		spin_lock_irqsave(&user->lock, irqflags);  in key_alloc()
346 		user->qnkeys--;  in key_alloc()
347 		user->qnbytes -= quotalen;  in key_alloc()
348 		spin_unlock_irqrestore(&user->lock, irqflags);  in key_alloc()
350 	key_user_put(user);  in key_alloc()
356 	spin_unlock_irqrestore(&user->lock, irqflags);  in key_alloc()
357 	key_user_put(user);  in key_alloc()
383 		unsigned maxbytes = uid_eq(key->user->uid, GLOBAL_ROOT_UID) ?  in key_payload_reserve()
387 		spin_lock_irqsave(&key->user->lock, flags);  in key_payload_reserve()
390 		    (key->user->qnbytes + delta > maxbytes ||  in key_payload_reserve()
391 		     key->user->qnbytes + delta < key->user->qnbytes)) {  in key_payload_reserve()
395 			key->user->qnbytes += delta;  in key_payload_reserve()
398 		spin_unlock_irqrestore(&key->user->lock, flags);  in key_payload_reserve()
450 			atomic_inc(&key->user->nikeys);  in __key_instantiate_and_link()
607 		atomic_inc(&key->user->nikeys);  in key_reject_and_link()
657 				spin_lock_irqsave(&key->user->lock, flags);  in key_put()
658 				key->user->qnkeys--;  in key_put()
659 				key->user->qnbytes -= key->quotalen;  in key_put()
660 				spin_unlock_irqrestore(&key->user->lock, flags);  in key_put()