187 static void disc_update(struct tipc_link_req *req)  in disc_update()  argument
189 	if (!req->num_nodes) {  in disc_update()
190 		if ((req->timer_intv == TIPC_LINK_REQ_INACTIVE) ||  in disc_update()
191 		    (req->timer_intv > TIPC_LINK_REQ_FAST)) {  in disc_update()
192 			req->timer_intv = TIPC_LINK_REQ_INIT;  in disc_update()
193 			mod_timer(&req->timer, jiffies + req->timer_intv);  in disc_update()
202 void tipc_disc_add_dest(struct tipc_link_req *req)  in tipc_disc_add_dest()  argument
204 	spin_lock_bh(&req->lock);  in tipc_disc_add_dest()
205 	req->num_nodes++;  in tipc_disc_add_dest()
206 	spin_unlock_bh(&req->lock);  in tipc_disc_add_dest()
213 void tipc_disc_remove_dest(struct tipc_link_req *req)  in tipc_disc_remove_dest()  argument
215 	spin_lock_bh(&req->lock);  in tipc_disc_remove_dest()
216 	req->num_nodes--;  in tipc_disc_remove_dest()
217 	disc_update(req);  in tipc_disc_remove_dest()
218 	spin_unlock_bh(&req->lock);  in tipc_disc_remove_dest()
229 	struct tipc_link_req *req = (struct tipc_link_req *)data;  in disc_timeout()  local
233 	spin_lock_bh(&req->lock);  in disc_timeout()
236 	if (tipc_node(req->domain) && req->num_nodes) {  in disc_timeout()
237 		req->timer_intv = TIPC_LINK_REQ_INACTIVE;  in disc_timeout()
248 	skb = skb_clone(req->buf, GFP_ATOMIC);  in disc_timeout()
250 		tipc_bearer_xmit_skb(req->net, req->bearer_id, skb, &req->dest);  in disc_timeout()
251 	req->timer_intv *= 2;  in disc_timeout()
252 	if (req->num_nodes)  in disc_timeout()
256 	if (req->timer_intv > max_delay)  in disc_timeout()
257 		req->timer_intv = max_delay;  in disc_timeout()
259 	mod_timer(&req->timer, jiffies + req->timer_intv);  in disc_timeout()
261 	spin_unlock_bh(&req->lock);  in disc_timeout()
276 	struct tipc_link_req *req;  in tipc_disc_create()  local
278 	req = kmalloc(sizeof(*req), GFP_ATOMIC);  in tipc_disc_create()
279 	if (!req)  in tipc_disc_create()
281 	req->buf = tipc_buf_acquire(MAX_H_SIZE, GFP_ATOMIC);  in tipc_disc_create()
282 	if (!req->buf) {  in tipc_disc_create()
283 		kfree(req);  in tipc_disc_create()
287 	tipc_disc_init_msg(net, req->buf, DSC_REQ_MSG, b);  in tipc_disc_create()
288 	memcpy(&req->dest, dest, sizeof(*dest));  in tipc_disc_create()
289 	req->net = net;  in tipc_disc_create()
290 	req->bearer_id = b->identity;  in tipc_disc_create()
291 	req->domain = b->domain;  in tipc_disc_create()
292 	req->num_nodes = 0;  in tipc_disc_create()
293 	req->timer_intv = TIPC_LINK_REQ_INIT;  in tipc_disc_create()
294 	spin_lock_init(&req->lock);  in tipc_disc_create()
295 	setup_timer(&req->timer, disc_timeout, (unsigned long)req);  in tipc_disc_create()
296 	mod_timer(&req->timer, jiffies + req->timer_intv);  in tipc_disc_create()
297 	b->link_req = req;  in tipc_disc_create()
298 	*skb = skb_clone(req->buf, GFP_ATOMIC);  in tipc_disc_create()
306 void tipc_disc_delete(struct tipc_link_req *req)  in tipc_disc_delete()  argument
308 	del_timer_sync(&req->timer);  in tipc_disc_delete()
309 	kfree_skb(req->buf);  in tipc_disc_delete()
310 	kfree(req);  in tipc_disc_delete()
321 	struct tipc_link_req *req = b->link_req;  in tipc_disc_reset()  local
324 	spin_lock_bh(&req->lock);  in tipc_disc_reset()
325 	tipc_disc_init_msg(net, req->buf, DSC_REQ_MSG, b);  in tipc_disc_reset()
326 	req->net = net;  in tipc_disc_reset()
327 	req->bearer_id = b->identity;  in tipc_disc_reset()
328 	req->domain = b->domain;  in tipc_disc_reset()
329 	req->num_nodes = 0;  in tipc_disc_reset()
330 	req->timer_intv = TIPC_LINK_REQ_INIT;  in tipc_disc_reset()
331 	mod_timer(&req->timer, jiffies + req->timer_intv);  in tipc_disc_reset()
332 	skb = skb_clone(req->buf, GFP_ATOMIC);  in tipc_disc_reset()
334 		tipc_bearer_xmit_skb(net, req->bearer_id, skb, &req->dest);  in tipc_disc_reset()
335 	spin_unlock_bh(&req->lock);  in tipc_disc_reset()