141 	struct afs_call *call;  in afs_alloc_call()  local
144 	call = kzalloc(sizeof(*call), gfp);  in afs_alloc_call()
145 	if (!call)  in afs_alloc_call()
148 	call->type = type;  in afs_alloc_call()
149 	call->net = net;  in afs_alloc_call()
150 	call->debug_id = atomic_inc_return(&rxrpc_debug_id);  in afs_alloc_call()
151 	refcount_set(&call->ref, 1);  in afs_alloc_call()
152 	INIT_WORK(&call->async_work, afs_process_async_call);  in afs_alloc_call()
153 	INIT_WORK(&call->free_work, afs_deferred_free_worker);  in afs_alloc_call()
154 	init_waitqueue_head(&call->waitq);  in afs_alloc_call()
155 	spin_lock_init(&call->state_lock);  in afs_alloc_call()
156 	call->iter = &call->def_iter;  in afs_alloc_call()
159 	trace_afs_call(call->debug_id, afs_call_trace_alloc, 1, o,  in afs_alloc_call()
161 	return call;  in afs_alloc_call()
164 static void afs_free_call(struct afs_call *call)  in afs_free_call()  argument
166 	struct afs_net *net = call->net;  in afs_free_call()
169 	ASSERT(!work_pending(&call->async_work));  in afs_free_call()
171 	rxrpc_kernel_put_peer(call->peer);  in afs_free_call()
173 	if (call->rxcall) {  in afs_free_call()
174 		rxrpc_kernel_shutdown_call(net->socket, call->rxcall);  in afs_free_call()
175 		rxrpc_kernel_put_call(net->socket, call->rxcall);  in afs_free_call()
176 		call->rxcall = NULL;  in afs_free_call()
178 	if (call->type->destructor)  in afs_free_call()
179 		call->type->destructor(call);  in afs_free_call()
181 	afs_unuse_server_notime(call->net, call->server, afs_server_trace_put_call);  in afs_free_call()
182 	kfree(call->request);  in afs_free_call()
185 	trace_afs_call(call->debug_id, afs_call_trace_free, 0, o,  in afs_free_call()
187 	kfree(call);  in afs_free_call()
197 void afs_put_call(struct afs_call *call)  in afs_put_call()  argument
199 	struct afs_net *net = call->net;  in afs_put_call()
200 	unsigned int debug_id = call->debug_id;  in afs_put_call()
204 	zero = __refcount_dec_and_test(&call->ref, &r);  in afs_put_call()
209 		afs_free_call(call);  in afs_put_call()
214 	struct afs_call *call = container_of(work, struct afs_call, free_work);  in afs_deferred_free_worker()  local
216 	afs_free_call(call);  in afs_deferred_free_worker()
223 void afs_deferred_put_call(struct afs_call *call)  in afs_deferred_put_call()  argument
225 	struct afs_net *net = call->net;  in afs_deferred_put_call()
226 	unsigned int debug_id = call->debug_id;  in afs_deferred_put_call()
230 	zero = __refcount_dec_and_test(&call->ref, &r);  in afs_deferred_put_call()
235 		schedule_work(&call->free_work);  in afs_deferred_put_call()
238 static struct afs_call *afs_get_call(struct afs_call *call,  in afs_get_call()  argument
243 	__refcount_inc(&call->ref, &r);  in afs_get_call()
245 	trace_afs_call(call->debug_id, why, r + 1,  in afs_get_call()
246 		       atomic_read(&call->net->nr_outstanding_calls),  in afs_get_call()
248 	return call;  in afs_get_call()
254 static void afs_queue_call_work(struct afs_call *call)  in afs_queue_call_work()  argument
256 	if (call->type->work) {  in afs_queue_call_work()
257 		INIT_WORK(&call->work, call->type->work);  in afs_queue_call_work()
259 		afs_get_call(call, afs_call_trace_work);  in afs_queue_call_work()
260 		if (!queue_work(afs_wq, &call->work))  in afs_queue_call_work()
261 			afs_put_call(call);  in afs_queue_call_work()
272 	struct afs_call *call;  in afs_alloc_flat_call()  local
274 	call = afs_alloc_call(net, type, GFP_NOFS);  in afs_alloc_flat_call()
275 	if (!call)  in afs_alloc_flat_call()
279 		call->request_size = request_size;  in afs_alloc_flat_call()
280 		call->request = kmalloc(request_size, GFP_NOFS);  in afs_alloc_flat_call()
281 		if (!call->request)  in afs_alloc_flat_call()
286 		call->reply_max = reply_max;  in afs_alloc_flat_call()
287 		call->buffer = kmalloc(reply_max, GFP_NOFS);  in afs_alloc_flat_call()
288 		if (!call->buffer)  in afs_alloc_flat_call()
292 	afs_extract_to_buf(call, call->reply_max);  in afs_alloc_flat_call()
293 	call->operation_ID = type->op;  in afs_alloc_flat_call()
294 	init_waitqueue_head(&call->waitq);  in afs_alloc_flat_call()
295 	return call;  in afs_alloc_flat_call()
298 	afs_put_call(call);  in afs_alloc_flat_call()
306 void afs_flat_call_destructor(struct afs_call *call)  in afs_flat_call_destructor()  argument
310 	kfree(call->request);  in afs_flat_call_destructor()
311 	call->request = NULL;  in afs_flat_call_destructor()
312 	kfree(call->buffer);  in afs_flat_call_destructor()
313 	call->buffer = NULL;  in afs_flat_call_destructor()
323 	struct afs_call *call = (struct afs_call *)call_user_ID;  in afs_notify_end_request_tx()  local
325 	afs_set_call_state(call, AFS_CALL_CL_REQUESTING, AFS_CALL_CL_AWAIT_REPLY);  in afs_notify_end_request_tx()
332 void afs_make_call(struct afs_call *call, gfp_t gfp)  in afs_make_call()  argument
341 	_enter(",{%pISp+%u},", rxrpc_kernel_remote_addr(call->peer), call->service_id);  in afs_make_call()
343 	ASSERT(call->type != NULL);  in afs_make_call()
344 	ASSERT(call->type->name != NULL);  in afs_make_call()
347 	       call, call->type->name, key_serial(call->key),  in afs_make_call()
348 	       atomic_read(&call->net->nr_outstanding_calls));  in afs_make_call()
350 	trace_afs_make_call(call);  in afs_make_call()
356 	tx_total_len = call->request_size;  in afs_make_call()
357 	if (call->write_iter)  in afs_make_call()
358 		tx_total_len += iov_iter_count(call->write_iter);  in afs_make_call()
363 	if (call->async) {  in afs_make_call()
364 		afs_get_call(call, afs_call_trace_get);  in afs_make_call()
365 		call->drop_ref = true;  in afs_make_call()
369 	rxcall = rxrpc_kernel_begin_call(call->net->socket, call->peer, call->key,  in afs_make_call()
370 					 (unsigned long)call,  in afs_make_call()
372 					 call->max_lifespan,  in afs_make_call()
374 					 (call->async ?  in afs_make_call()
377 					 call->service_id,  in afs_make_call()
378 					 call->upgrade,  in afs_make_call()
379 					 (call->intr ? RXRPC_PREINTERRUPTIBLE :  in afs_make_call()
381 					 call->debug_id);  in afs_make_call()
384 		call->error = ret;  in afs_make_call()
388 	call->rxcall = rxcall;  in afs_make_call()
389 	call->issue_time = ktime_get_real();  in afs_make_call()
392 	iov[0].iov_base	= call->request;  in afs_make_call()
393 	iov[0].iov_len	= call->request_size;  in afs_make_call()
397 	iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, iov, 1, call->request_size);  in afs_make_call()
400 	msg.msg_flags		= MSG_WAITALL | (call->write_iter ? MSG_MORE : 0);  in afs_make_call()
402 	ret = rxrpc_kernel_send_data(call->net->socket, rxcall,  in afs_make_call()
403 				     &msg, call->request_size,  in afs_make_call()
408 	if (call->write_iter) {  in afs_make_call()
409 		msg.msg_iter = *call->write_iter;  in afs_make_call()
411 		trace_afs_send_data(call, &msg);  in afs_make_call()
413 		ret = rxrpc_kernel_send_data(call->net->socket,  in afs_make_call()
414 					     call->rxcall, &msg,  in afs_make_call()
417 		*call->write_iter = msg.msg_iter;  in afs_make_call()
419 		trace_afs_sent_data(call, &msg, ret);  in afs_make_call()
434 		rxrpc_kernel_abort_call(call->net->socket, rxcall,  in afs_make_call()
440 		rxrpc_kernel_recv_data(call->net->socket, rxcall,  in afs_make_call()
442 				       &call->abort_code, &call->service_id);  in afs_make_call()
443 		call->responded = true;  in afs_make_call()
445 	call->error = ret;  in afs_make_call()
446 	trace_afs_call_done(call);  in afs_make_call()
448 	if (call->type->done)  in afs_make_call()
449 		call->type->done(call);  in afs_make_call()
455 	if (call->rxcall)  in afs_make_call()
456 		rxrpc_kernel_shutdown_call(call->net->socket, call->rxcall);  in afs_make_call()
457 	if (call->async) {  in afs_make_call()
458 		if (cancel_work_sync(&call->async_work))  in afs_make_call()
459 			afs_put_call(call);  in afs_make_call()
460 		afs_set_call_complete(call, ret, 0);  in afs_make_call()
463 	call->error = ret;  in afs_make_call()
464 	call->state = AFS_CALL_COMPLETE;  in afs_make_call()
472 static void afs_log_error(struct afs_call *call, s32 remote_abort)  in afs_log_error()  argument
496 			  msg, call->type->name,  in afs_log_error()
497 			  rxrpc_kernel_remote_addr(call->peer));  in afs_log_error()
504 static void afs_deliver_to_call(struct afs_call *call)  in afs_deliver_to_call()  argument
511 	_enter("%s", call->type->name);  in afs_deliver_to_call()
513 	while (state = READ_ONCE(call->state),  in afs_deliver_to_call()
521 			iov_iter_kvec(&call->def_iter, ITER_DEST, NULL, 0, 0);  in afs_deliver_to_call()
522 			ret = rxrpc_kernel_recv_data(call->net->socket,  in afs_deliver_to_call()
523 						     call->rxcall, &call->def_iter,  in afs_deliver_to_call()
525 						     &call->service_id);  in afs_deliver_to_call()
526 			trace_afs_receive_data(call, &call->def_iter, false, ret);  in afs_deliver_to_call()
538 		ret = call->type->deliver(call);  in afs_deliver_to_call()
539 		state = READ_ONCE(call->state);  in afs_deliver_to_call()
540 		if (ret == 0 && call->unmarshalling_error)  in afs_deliver_to_call()
544 			call->responded = true;  in afs_deliver_to_call()
545 			afs_queue_call_work(call);  in afs_deliver_to_call()
547 				if (call->op)  in afs_deliver_to_call()
549 						&call->op->server->flags);  in afs_deliver_to_call()
559 			call->responded = true;  in afs_deliver_to_call()
560 			afs_log_error(call, call->abort_code);  in afs_deliver_to_call()
563 			call->responded = true;  in afs_deliver_to_call()
565 			rxrpc_kernel_abort_call(call->net->socket, call->rxcall,  in afs_deliver_to_call()
571 			       call->debug_id, state);  in afs_deliver_to_call()
581 			rxrpc_kernel_abort_call(call->net->socket, call->rxcall,  in afs_deliver_to_call()
587 			rxrpc_kernel_abort_call(call->net->socket, call->rxcall,  in afs_deliver_to_call()
595 	if (call->type->done)  in afs_deliver_to_call()
596 		call->type->done(call);  in afs_deliver_to_call()
604 	afs_set_call_complete(call, ret, remote_abort);  in afs_deliver_to_call()
612 void afs_wait_for_call_to_complete(struct afs_call *call)  in afs_wait_for_call_to_complete()  argument
618 	if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) {  in afs_wait_for_call_to_complete()
621 		add_wait_queue(&call->waitq, &myself);  in afs_wait_for_call_to_complete()
626 			if (!afs_check_call_state(call, AFS_CALL_COMPLETE) &&  in afs_wait_for_call_to_complete()
627 			    call->need_attention) {  in afs_wait_for_call_to_complete()
628 				call->need_attention = false;  in afs_wait_for_call_to_complete()
630 				afs_deliver_to_call(call);  in afs_wait_for_call_to_complete()
634 			if (afs_check_call_state(call, AFS_CALL_COMPLETE))  in afs_wait_for_call_to_complete()
637 			if (!rxrpc_kernel_check_life(call->net->socket, call->rxcall)) {  in afs_wait_for_call_to_complete()
646 		remove_wait_queue(&call->waitq, &myself);  in afs_wait_for_call_to_complete()
650 	if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) {  in afs_wait_for_call_to_complete()
652 			afs_set_call_complete(call, call->error, call->abort_code);  in afs_wait_for_call_to_complete()
656 			if (rxrpc_kernel_abort_call(call->net->socket, call->rxcall,  in afs_wait_for_call_to_complete()
659 				afs_set_call_complete(call, -EINTR, 0);  in afs_wait_for_call_to_complete()
670 	struct afs_call *call = (struct afs_call *)call_user_ID;  in afs_wake_up_call_waiter()  local
672 	call->need_attention = true;  in afs_wake_up_call_waiter()
673 	wake_up(&call->waitq);  in afs_wake_up_call_waiter()
683 	struct afs_call *call = (struct afs_call *)call_user_ID;  in afs_wake_up_async_call()  local
686 	trace_afs_notify_call(rxcall, call);  in afs_wake_up_async_call()
687 	call->need_attention = true;  in afs_wake_up_async_call()
689 	if (__refcount_inc_not_zero(&call->ref, &r)) {  in afs_wake_up_async_call()
690 		trace_afs_call(call->debug_id, afs_call_trace_wake, r + 1,  in afs_wake_up_async_call()
691 			       atomic_read(&call->net->nr_outstanding_calls),  in afs_wake_up_async_call()
694 		if (!queue_work(afs_async_calls, &call->async_work))  in afs_wake_up_async_call()
695 			afs_deferred_put_call(call);  in afs_wake_up_async_call()
705 	struct afs_call *call = container_of(work, struct afs_call, async_work);  in afs_process_async_call()  local
709 	if (call->state < AFS_CALL_COMPLETE && call->need_attention) {  in afs_process_async_call()
710 		call->need_attention = false;  in afs_process_async_call()
711 		afs_deliver_to_call(call);  in afs_process_async_call()
714 	afs_put_call(call);  in afs_process_async_call()
720 	struct afs_call *call = (struct afs_call *)user_call_ID;  in afs_rx_attach()  local
722 	call->rxcall = rxcall;  in afs_rx_attach()
732 	struct afs_call *call = net->spare_incoming_call;  in afs_charge_preallocation()  local
735 		if (!call) {  in afs_charge_preallocation()
736 			call = afs_alloc_call(net, &afs_RXCMxxxx, GFP_KERNEL);  in afs_charge_preallocation()
737 			if (!call)  in afs_charge_preallocation()
740 			call->drop_ref = true;  in afs_charge_preallocation()
741 			call->async = true;  in afs_charge_preallocation()
742 			call->state = AFS_CALL_SV_AWAIT_OP_ID;  in afs_charge_preallocation()
743 			init_waitqueue_head(&call->waitq);  in afs_charge_preallocation()
744 			afs_extract_to_tmp(call);  in afs_charge_preallocation()
750 					       (unsigned long)call,  in afs_charge_preallocation()
752 					       call->debug_id) < 0)  in afs_charge_preallocation()
754 		call = NULL;  in afs_charge_preallocation()
756 	net->spare_incoming_call = call;  in afs_charge_preallocation()
765 	struct afs_call *call = (struct afs_call *)user_call_ID;  in afs_rx_discard_new_call()  local
767 	call->rxcall = NULL;  in afs_rx_discard_new_call()
768 	afs_put_call(call);  in afs_rx_discard_new_call()
786 static int afs_deliver_cm_op_id(struct afs_call *call)  in afs_deliver_cm_op_id()  argument
790 	_enter("{%zu}", iov_iter_count(call->iter));  in afs_deliver_cm_op_id()
793 	ret = afs_extract_data(call, true);  in afs_deliver_cm_op_id()
797 	call->operation_ID = ntohl(call->tmp);  in afs_deliver_cm_op_id()
798 	afs_set_call_state(call, AFS_CALL_SV_AWAIT_OP_ID, AFS_CALL_SV_AWAIT_REQUEST);  in afs_deliver_cm_op_id()
802 	if (!afs_cm_incoming_call(call))  in afs_deliver_cm_op_id()
805 	trace_afs_cb_call(call);  in afs_deliver_cm_op_id()
809 	return call->type->deliver(call);  in afs_deliver_cm_op_id()
820 	struct afs_call *call = (struct afs_call *)call_user_ID;  in afs_notify_end_reply_tx()  local
822 	afs_set_call_state(call, AFS_CALL_SV_REPLYING, AFS_CALL_SV_AWAIT_ACK);  in afs_notify_end_reply_tx()
828 void afs_send_empty_reply(struct afs_call *call)  in afs_send_empty_reply()  argument
830 	struct afs_net *net = call->net;  in afs_send_empty_reply()
835 	rxrpc_kernel_set_tx_length(net->socket, call->rxcall, 0);  in afs_send_empty_reply()
844 	switch (rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, 0,  in afs_send_empty_reply()
852 		rxrpc_kernel_abort_call(net->socket, call->rxcall,  in afs_send_empty_reply()
865 void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len)  in afs_send_simple_reply()  argument
867 	struct afs_net *net = call->net;  in afs_send_simple_reply()
874 	rxrpc_kernel_set_tx_length(net->socket, call->rxcall, len);  in afs_send_simple_reply()
885 	n = rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, len,  in afs_send_simple_reply()
895 		rxrpc_kernel_abort_call(net->socket, call->rxcall,  in afs_send_simple_reply()
905 int afs_extract_data(struct afs_call *call, bool want_more)  in afs_extract_data()  argument
907 	struct afs_net *net = call->net;  in afs_extract_data()
908 	struct iov_iter *iter = call->iter;  in afs_extract_data()
914 	       call->type->name, call->iov_len, iov_iter_count(iter), want_more);  in afs_extract_data()
916 	ret = rxrpc_kernel_recv_data(net->socket, call->rxcall, iter,  in afs_extract_data()
917 				     &call->iov_len, want_more, &remote_abort,  in afs_extract_data()
918 				     &call->service_id);  in afs_extract_data()
919 	trace_afs_receive_data(call, call->iter, want_more, ret);  in afs_extract_data()
923 	state = READ_ONCE(call->state);  in afs_extract_data()
927 			afs_set_call_state(call, state, AFS_CALL_CL_PROC_REPLY);  in afs_extract_data()
930 			afs_set_call_state(call, state, AFS_CALL_SV_REPLYING);  in afs_extract_data()
933 			kdebug("prem complete %d", call->error);  in afs_extract_data()
934 			return afs_io_error(call, afs_io_error_extract);  in afs_extract_data()
941 	afs_set_call_complete(call, ret, remote_abort);  in afs_extract_data()
948 noinline int afs_protocol_error(struct afs_call *call,  in afs_protocol_error()  argument
951 	trace_afs_protocol_error(call, cause);  in afs_protocol_error()
952 	if (call)  in afs_protocol_error()
953 		call->unmarshalling_error = true;  in afs_protocol_error()