194 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_start_svc()  local
199 	if (cb_info->task)  in nfs_callback_start_svc()
218 	cb_info->serv = serv;  in nfs_callback_start_svc()
219 	cb_info->rqst = rqstp;  in nfs_callback_start_svc()
220 	cb_info->task = kthread_create(callback_svc, cb_info->rqst,  in nfs_callback_start_svc()
222 	if (IS_ERR(cb_info->task)) {  in nfs_callback_start_svc()
223 		ret = PTR_ERR(cb_info->task);  in nfs_callback_start_svc()
224 		svc_exit_thread(cb_info->rqst);  in nfs_callback_start_svc()
225 		cb_info->rqst = NULL;  in nfs_callback_start_svc()
226 		cb_info->task = NULL;  in nfs_callback_start_svc()
229 	rqstp->rq_task = cb_info->task;  in nfs_callback_start_svc()
230 	wake_up_process(cb_info->task);  in nfs_callback_start_svc()
289 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_create_svc()  local
295 	if (cb_info->task) {  in nfs_callback_create_svc()
300 		svc_get(cb_info->serv);  in nfs_callback_create_svc()
301 		return cb_info->serv;  in nfs_callback_create_svc()
308 	if (cb_info->users)  in nfs_callback_create_svc()
310 			cb_info->users);  in nfs_callback_create_svc()
331 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_up()  local
351 	cb_info->users++;  in nfs_callback_up()
375 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_down()  local
378 	nfs_callback_down_net(minorversion, cb_info->serv, net);  in nfs_callback_down()
379 	cb_info->users--;  in nfs_callback_down()
380 	if (cb_info->users == 0 && cb_info->task != NULL) {  in nfs_callback_down()
381 		kthread_stop(cb_info->task);  in nfs_callback_down()
383 		svc_exit_thread(cb_info->rqst);  in nfs_callback_down()
385 		cb_info->serv = NULL;  in nfs_callback_down()
386 		cb_info->rqst = NULL;  in nfs_callback_down()
387 		cb_info->task = NULL;  in nfs_callback_down()