273 static void disc_update(struct tipc_link_req *req)  in disc_update()  argument
275 	if (!req->num_nodes) {  in disc_update()
276 		if ((req->timer_intv == TIPC_LINK_REQ_INACTIVE) ||  in disc_update()
277 		    (req->timer_intv > TIPC_LINK_REQ_FAST)) {  in disc_update()
278 			req->timer_intv = TIPC_LINK_REQ_INIT;  in disc_update()
279 			mod_timer(&req->timer, jiffies + req->timer_intv);  in disc_update()
288 void tipc_disc_add_dest(struct tipc_link_req *req)  in tipc_disc_add_dest()  argument
290 	spin_lock_bh(&req->lock);  in tipc_disc_add_dest()
291 	req->num_nodes++;  in tipc_disc_add_dest()
292 	spin_unlock_bh(&req->lock);  in tipc_disc_add_dest()
299 void tipc_disc_remove_dest(struct tipc_link_req *req)  in tipc_disc_remove_dest()  argument
301 	spin_lock_bh(&req->lock);  in tipc_disc_remove_dest()
302 	req->num_nodes--;  in tipc_disc_remove_dest()
303 	disc_update(req);  in tipc_disc_remove_dest()
304 	spin_unlock_bh(&req->lock);  in tipc_disc_remove_dest()
315 	struct tipc_link_req *req = (struct tipc_link_req *)data;  in disc_timeout()  local
318 	spin_lock_bh(&req->lock);  in disc_timeout()
321 	if (tipc_node(req->domain) && req->num_nodes) {  in disc_timeout()
322 		req->timer_intv = TIPC_LINK_REQ_INACTIVE;  in disc_timeout()
333 	tipc_bearer_send(req->net, req->bearer_id, req->buf, &req->dest);  in disc_timeout()
336 	req->timer_intv *= 2;  in disc_timeout()
337 	if (req->num_nodes)  in disc_timeout()
341 	if (req->timer_intv > max_delay)  in disc_timeout()
342 		req->timer_intv = max_delay;  in disc_timeout()
344 	mod_timer(&req->timer, jiffies + req->timer_intv);  in disc_timeout()
346 	spin_unlock_bh(&req->lock);  in disc_timeout()
361 	struct tipc_link_req *req;  in tipc_disc_create()  local
363 	req = kmalloc(sizeof(*req), GFP_ATOMIC);  in tipc_disc_create()
364 	if (!req)  in tipc_disc_create()
366 	req->buf = tipc_buf_acquire(MAX_H_SIZE);  in tipc_disc_create()
367 	if (!req->buf) {  in tipc_disc_create()
368 		kfree(req);  in tipc_disc_create()
372 	tipc_disc_init_msg(net, req->buf, DSC_REQ_MSG, b_ptr);  in tipc_disc_create()
373 	memcpy(&req->dest, dest, sizeof(*dest));  in tipc_disc_create()
374 	req->net = net;  in tipc_disc_create()
375 	req->bearer_id = b_ptr->identity;  in tipc_disc_create()
376 	req->domain = b_ptr->domain;  in tipc_disc_create()
377 	req->num_nodes = 0;  in tipc_disc_create()
378 	req->timer_intv = TIPC_LINK_REQ_INIT;  in tipc_disc_create()
379 	spin_lock_init(&req->lock);  in tipc_disc_create()
380 	setup_timer(&req->timer, disc_timeout, (unsigned long)req);  in tipc_disc_create()
381 	mod_timer(&req->timer, jiffies + req->timer_intv);  in tipc_disc_create()
382 	b_ptr->link_req = req;  in tipc_disc_create()
383 	tipc_bearer_send(net, req->bearer_id, req->buf, &req->dest);  in tipc_disc_create()
391 void tipc_disc_delete(struct tipc_link_req *req)  in tipc_disc_delete()  argument
393 	del_timer_sync(&req->timer);  in tipc_disc_delete()
394 	kfree_skb(req->buf);  in tipc_disc_delete()
395 	kfree(req);  in tipc_disc_delete()
406 	struct tipc_link_req *req = b_ptr->link_req;  in tipc_disc_reset()  local
408 	spin_lock_bh(&req->lock);  in tipc_disc_reset()
409 	tipc_disc_init_msg(net, req->buf, DSC_REQ_MSG, b_ptr);  in tipc_disc_reset()
410 	req->net = net;  in tipc_disc_reset()
411 	req->bearer_id = b_ptr->identity;  in tipc_disc_reset()
412 	req->domain = b_ptr->domain;  in tipc_disc_reset()
413 	req->num_nodes = 0;  in tipc_disc_reset()
414 	req->timer_intv = TIPC_LINK_REQ_INIT;  in tipc_disc_reset()
415 	mod_timer(&req->timer, jiffies + req->timer_intv);  in tipc_disc_reset()
416 	tipc_bearer_send(net, req->bearer_id, req->buf, &req->dest);  in tipc_disc_reset()
417 	spin_unlock_bh(&req->lock);  in tipc_disc_reset()