214 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_start_svc()  local
219 	if (cb_info->task)  in nfs_callback_start_svc()
238 	cb_info->serv = serv;  in nfs_callback_start_svc()
239 	cb_info->rqst = rqstp;  in nfs_callback_start_svc()
240 	cb_info->task = kthread_create(callback_svc, cb_info->rqst,  in nfs_callback_start_svc()
242 	if (IS_ERR(cb_info->task)) {  in nfs_callback_start_svc()
243 		ret = PTR_ERR(cb_info->task);  in nfs_callback_start_svc()
244 		svc_exit_thread(cb_info->rqst);  in nfs_callback_start_svc()
245 		cb_info->rqst = NULL;  in nfs_callback_start_svc()
246 		cb_info->task = NULL;  in nfs_callback_start_svc()
249 	rqstp->rq_task = cb_info->task;  in nfs_callback_start_svc()
250 	wake_up_process(cb_info->task);  in nfs_callback_start_svc()
313 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_create_svc()  local
319 	if (cb_info->task) {  in nfs_callback_create_svc()
324 		svc_get(cb_info->serv);  in nfs_callback_create_svc()
325 		return cb_info->serv;  in nfs_callback_create_svc()
332 	if (cb_info->users)  in nfs_callback_create_svc()
334 			cb_info->users);  in nfs_callback_create_svc()
355 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_up()  local
375 	cb_info->users++;  in nfs_callback_up()
399 	struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];  in nfs_callback_down()  local
402 	nfs_callback_down_net(minorversion, cb_info->serv, net);  in nfs_callback_down()
403 	cb_info->users--;  in nfs_callback_down()
404 	if (cb_info->users == 0 && cb_info->task != NULL) {  in nfs_callback_down()
405 		kthread_stop(cb_info->task);  in nfs_callback_down()
407 		svc_exit_thread(cb_info->rqst);  in nfs_callback_down()
409 		cb_info->serv = NULL;  in nfs_callback_down()
410 		cb_info->rqst = NULL;  in nfs_callback_down()
411 		cb_info->task = NULL;  in nfs_callback_down()