Lines Matching full:call
38 /* asynchronous incoming call initial processing */
154 * Allocate a call.
160 struct afs_call *call; in afs_alloc_call() local
163 call = kzalloc_obj(*call, gfp); in afs_alloc_call()
164 if (!call) in afs_alloc_call()
167 call->type = type; in afs_alloc_call()
168 call->net = net; in afs_alloc_call()
169 call->debug_id = atomic_inc_return(&rxrpc_debug_id); in afs_alloc_call()
170 refcount_set(&call->ref, 1); in afs_alloc_call()
171 INIT_WORK(&call->async_work, type->async_rx ?: afs_process_async_call); in afs_alloc_call()
172 INIT_WORK(&call->work, call->type->work); in afs_alloc_call()
173 INIT_WORK(&call->free_work, afs_deferred_free_worker); in afs_alloc_call()
174 init_waitqueue_head(&call->waitq); in afs_alloc_call()
175 spin_lock_init(&call->state_lock); in afs_alloc_call()
176 call->iter = &call->def_iter; in afs_alloc_call()
179 trace_afs_call(call->debug_id, afs_call_trace_alloc, 1, o, in afs_alloc_call()
181 return call; in afs_alloc_call()
184 static void afs_free_call(struct afs_call *call) in afs_free_call() argument
186 struct afs_net *net = call->net; in afs_free_call()
189 ASSERT(!work_pending(&call->async_work)); in afs_free_call()
191 rxrpc_kernel_put_peer(call->peer); in afs_free_call()
193 if (call->rxcall) { in afs_free_call()
194 rxrpc_kernel_shutdown_call(net->socket, call->rxcall); in afs_free_call()
195 rxrpc_kernel_put_call(net->socket, call->rxcall); in afs_free_call()
196 call->rxcall = NULL; in afs_free_call()
198 if (call->type->destructor) in afs_free_call()
199 call->type->destructor(call); in afs_free_call()
201 afs_unuse_server_notime(call->net, call->server, afs_server_trace_unuse_call); in afs_free_call()
202 kfree(call->request); in afs_free_call()
205 trace_afs_call(call->debug_id, afs_call_trace_free, 0, o, in afs_free_call()
207 kfree(call); in afs_free_call()
215 * Dispose of a reference on a call.
217 void afs_put_call(struct afs_call *call) in afs_put_call() argument
219 struct afs_net *net = call->net; in afs_put_call()
220 unsigned int debug_id = call->debug_id; in afs_put_call()
224 zero = __refcount_dec_and_test(&call->ref, &r); in afs_put_call()
229 afs_free_call(call); in afs_put_call()
234 struct afs_call *call = container_of(work, struct afs_call, free_work); in afs_deferred_free_worker() local
236 afs_free_call(call); in afs_deferred_free_worker()
240 * Dispose of a reference on a call, deferring the cleanup to a workqueue
243 void afs_deferred_put_call(struct afs_call *call) in afs_deferred_put_call() argument
245 struct afs_net *net = call->net; in afs_deferred_put_call()
246 unsigned int debug_id = call->debug_id; in afs_deferred_put_call()
250 zero = __refcount_dec_and_test(&call->ref, &r); in afs_deferred_put_call()
255 schedule_work(&call->free_work); in afs_deferred_put_call()
259 * Queue the call for actual work.
261 static void afs_queue_call_work(struct afs_call *call) in afs_queue_call_work() argument
263 if (call->type->work) { in afs_queue_call_work()
264 afs_get_call(call, afs_call_trace_work); in afs_queue_call_work()
265 if (!queue_work(afs_wq, &call->work)) in afs_queue_call_work()
266 afs_put_call(call); in afs_queue_call_work()
271 * allocate a call with flat request and reply buffers
277 struct afs_call *call; in afs_alloc_flat_call() local
279 call = afs_alloc_call(net, type, GFP_NOFS); in afs_alloc_flat_call()
280 if (!call) in afs_alloc_flat_call()
284 call->request_size = request_size; in afs_alloc_flat_call()
285 call->request = kmalloc(request_size, GFP_NOFS); in afs_alloc_flat_call()
286 if (!call->request) in afs_alloc_flat_call()
291 call->reply_max = reply_max; in afs_alloc_flat_call()
292 call->buffer = kmalloc(reply_max, GFP_NOFS); in afs_alloc_flat_call()
293 if (!call->buffer) in afs_alloc_flat_call()
297 afs_extract_to_buf(call, call->reply_max); in afs_alloc_flat_call()
298 call->operation_ID = type->op; in afs_alloc_flat_call()
299 init_waitqueue_head(&call->waitq); in afs_alloc_flat_call()
300 return call; in afs_alloc_flat_call()
303 afs_put_call(call); in afs_alloc_flat_call()
309 * clean up a call with flat buffer
311 void afs_flat_call_destructor(struct afs_call *call) in afs_flat_call_destructor() argument
315 kfree(call->request); in afs_flat_call_destructor()
316 call->request = NULL; in afs_flat_call_destructor()
317 kfree(call->buffer); in afs_flat_call_destructor()
318 call->buffer = NULL; in afs_flat_call_destructor()
322 * Advance the AFS call state when the RxRPC call ends the transmit phase.
328 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_request_tx() local
330 afs_set_call_state(call, AFS_CALL_CL_REQUESTING, AFS_CALL_CL_AWAIT_REPLY); in afs_notify_end_request_tx()
334 * Initiate a call and synchronously queue up the parameters for dispatch. Any
335 * error is stored into the call struct, which the caller must check for.
337 void afs_make_call(struct afs_call *call, gfp_t gfp) in afs_make_call() argument
346 _enter(",{%pISp+%u},", rxrpc_kernel_remote_addr(call->peer), call->service_id); in afs_make_call()
348 ASSERT(call->type != NULL); in afs_make_call()
349 ASSERT(call->type->name != NULL); in afs_make_call()
352 call, call->type->name, key_serial(call->key), in afs_make_call()
353 atomic_read(&call->net->nr_outstanding_calls)); in afs_make_call()
355 trace_afs_make_call(call); in afs_make_call()
361 tx_total_len = call->request_size; in afs_make_call()
362 if (call->write_iter) in afs_make_call()
363 tx_total_len += iov_iter_count(call->write_iter); in afs_make_call()
365 /* If the call is going to be asynchronous, we need an extra ref for in afs_make_call()
366 * the call to hold itself so the caller need not hang on to its ref. in afs_make_call()
368 if (call->async) { in afs_make_call()
369 afs_get_call(call, afs_call_trace_get); in afs_make_call()
370 call->drop_ref = true; in afs_make_call()
373 /* create a call */ in afs_make_call()
374 rxcall = rxrpc_kernel_begin_call(call->net->socket, call->peer, call->key, in afs_make_call()
375 (unsigned long)call, in afs_make_call()
377 call->max_lifespan, in afs_make_call()
379 (call->async ? in afs_make_call()
382 call->service_id, in afs_make_call()
383 call->upgrade, in afs_make_call()
384 (call->intr ? RXRPC_PREINTERRUPTIBLE : in afs_make_call()
386 call->debug_id); in afs_make_call()
389 call->error = ret; in afs_make_call()
393 call->rxcall = rxcall; in afs_make_call()
394 call->issue_time = ktime_get_real(); in afs_make_call()
397 iov[0].iov_base = call->request; in afs_make_call()
398 iov[0].iov_len = call->request_size; in afs_make_call()
402 iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, iov, 1, call->request_size); in afs_make_call()
405 msg.msg_flags = MSG_WAITALL | (call->write_iter ? MSG_MORE : 0); in afs_make_call()
407 ret = rxrpc_kernel_send_data(call->net->socket, rxcall, in afs_make_call()
408 &msg, call->request_size, in afs_make_call()
413 if (call->write_iter) { in afs_make_call()
414 msg.msg_iter = *call->write_iter; in afs_make_call()
416 trace_afs_send_data(call, &msg); in afs_make_call()
418 ret = rxrpc_kernel_send_data(call->net->socket, in afs_make_call()
419 call->rxcall, &msg, in afs_make_call()
422 *call->write_iter = msg.msg_iter; in afs_make_call()
424 trace_afs_sent_data(call, &msg, ret); in afs_make_call()
430 * - and an asynchronous call may already have completed. in afs_make_call()
432 * afs_wait_for_call_to_complete(call) in afs_make_call()
439 rxrpc_kernel_abort_call(call->net->socket, rxcall, in afs_make_call()
442 if (call->async) { in afs_make_call()
443 afs_see_call(call, afs_call_trace_async_abort); in afs_make_call()
450 rxrpc_kernel_recv_data(call->net->socket, rxcall, in afs_make_call()
452 &call->abort_code, &call->service_id); in afs_make_call()
453 call->responded = true; in afs_make_call()
455 call->error = ret; in afs_make_call()
456 trace_afs_call_done(call); in afs_make_call()
458 if (call->async) in afs_make_call()
459 afs_see_call(call, afs_call_trace_async_kill); in afs_make_call()
460 if (call->type->immediate_cancel) in afs_make_call()
461 call->type->immediate_cancel(call); in afs_make_call()
463 /* We need to dispose of the extra ref we grabbed for an async call. in afs_make_call()
464 * The call, however, might be queued on afs_async_calls and we need to in afs_make_call()
467 if (call->rxcall) in afs_make_call()
468 rxrpc_kernel_shutdown_call(call->net->socket, call->rxcall); in afs_make_call()
469 if (call->async) { in afs_make_call()
470 if (cancel_work_sync(&call->async_work)) in afs_make_call()
471 afs_put_call(call); in afs_make_call()
472 afs_set_call_complete(call, ret, 0); in afs_make_call()
475 call->error = ret; in afs_make_call()
476 call->state = AFS_CALL_COMPLETE; in afs_make_call()
484 static void afs_log_error(struct afs_call *call, s32 remote_abort) in afs_log_error() argument
508 msg, call->type->name, in afs_log_error()
509 rxrpc_kernel_remote_addr(call->peer)); in afs_log_error()
514 * deliver messages to a call
516 void afs_deliver_to_call(struct afs_call *call) in afs_deliver_to_call() argument
523 _enter("%s", call->type->name); in afs_deliver_to_call()
525 while (state = READ_ONCE(call->state), in afs_deliver_to_call()
533 iov_iter_kvec(&call->def_iter, ITER_DEST, NULL, 0, 0); in afs_deliver_to_call()
534 ret = rxrpc_kernel_recv_data(call->net->socket, in afs_deliver_to_call()
535 call->rxcall, &call->def_iter, in afs_deliver_to_call()
537 &call->service_id); in afs_deliver_to_call()
538 trace_afs_receive_data(call, &call->def_iter, false, ret); in afs_deliver_to_call()
550 ret = call->type->deliver(call); in afs_deliver_to_call()
551 state = READ_ONCE(call->state); in afs_deliver_to_call()
552 if (ret == 0 && call->unmarshalling_error) in afs_deliver_to_call()
556 call->responded = true; in afs_deliver_to_call()
557 afs_queue_call_work(call); in afs_deliver_to_call()
559 if (call->op) in afs_deliver_to_call()
561 &call->op->server->flags); in afs_deliver_to_call()
571 call->responded = true; in afs_deliver_to_call()
572 afs_log_error(call, call->abort_code); in afs_deliver_to_call()
575 call->responded = true; in afs_deliver_to_call()
577 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
582 pr_err("kAFS: Call %u in bad state %u\n", in afs_deliver_to_call()
583 call->debug_id, state); in afs_deliver_to_call()
593 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
599 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
607 if (call->type->done) in afs_deliver_to_call()
608 call->type->done(call); in afs_deliver_to_call()
616 afs_set_call_complete(call, ret, remote_abort); in afs_deliver_to_call()
621 * Wait synchronously for a call to complete.
623 void afs_wait_for_call_to_complete(struct afs_call *call) in afs_wait_for_call_to_complete() argument
629 if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) { in afs_wait_for_call_to_complete()
632 add_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
637 if (!afs_check_call_state(call, AFS_CALL_COMPLETE) && in afs_wait_for_call_to_complete()
638 call->need_attention) { in afs_wait_for_call_to_complete()
639 call->need_attention = false; in afs_wait_for_call_to_complete()
641 afs_deliver_to_call(call); in afs_wait_for_call_to_complete()
645 if (afs_check_call_state(call, AFS_CALL_COMPLETE)) in afs_wait_for_call_to_complete()
648 if (!rxrpc_kernel_check_life(call->net->socket, call->rxcall)) { in afs_wait_for_call_to_complete()
649 /* rxrpc terminated the call. */ in afs_wait_for_call_to_complete()
657 remove_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
661 if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) { in afs_wait_for_call_to_complete()
663 afs_set_call_complete(call, call->error, call->abort_code); in afs_wait_for_call_to_complete()
665 /* Kill off the call if it's still live. */ in afs_wait_for_call_to_complete()
666 _debug("call interrupted"); in afs_wait_for_call_to_complete()
667 if (rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_wait_for_call_to_complete()
670 afs_set_call_complete(call, -EINTR, 0); in afs_wait_for_call_to_complete()
676 * wake up a waiting call
681 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_call_waiter() local
683 call->need_attention = true; in afs_wake_up_call_waiter()
684 wake_up(&call->waitq); in afs_wake_up_call_waiter()
688 * Wake up an asynchronous call. The caller is holding the call notify
689 * spinlock around this, so we can't call afs_put_call().
694 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_async_call() local
697 trace_afs_notify_call(rxcall, call); in afs_wake_up_async_call()
698 call->need_attention = true; in afs_wake_up_async_call()
700 if (__refcount_inc_not_zero(&call->ref, &r)) { in afs_wake_up_async_call()
701 trace_afs_call(call->debug_id, afs_call_trace_wake, r + 1, in afs_wake_up_async_call()
702 atomic_read(&call->net->nr_outstanding_calls), in afs_wake_up_async_call()
705 if (!queue_work(afs_async_calls, &call->async_work)) in afs_wake_up_async_call()
706 afs_deferred_put_call(call); in afs_wake_up_async_call()
711 * Perform I/O processing on an asynchronous call. The work item carries a ref
712 * to the call struct that we either need to release or to pass on.
716 struct afs_call *call = container_of(work, struct afs_call, async_work); in afs_process_async_call() local
720 if (call->state < AFS_CALL_COMPLETE && call->need_attention) { in afs_process_async_call()
721 call->need_attention = false; in afs_process_async_call()
722 afs_deliver_to_call(call); in afs_process_async_call()
725 afs_put_call(call); in afs_process_async_call()
731 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_attach() local
733 call->rxcall = rxcall; in afs_rx_attach()
737 * Charge the incoming call preallocation.
743 struct afs_call *call = net->spare_incoming_call; in afs_charge_preallocation() local
746 if (!call) { in afs_charge_preallocation()
747 call = afs_alloc_call(net, &afs_RXCMxxxx, GFP_KERNEL); in afs_charge_preallocation()
748 if (!call) in afs_charge_preallocation()
751 call->drop_ref = true; in afs_charge_preallocation()
752 call->async = true; in afs_charge_preallocation()
753 call->state = AFS_CALL_SV_AWAIT_OP_ID; in afs_charge_preallocation()
754 init_waitqueue_head(&call->waitq); in afs_charge_preallocation()
755 afs_extract_to_tmp(call); in afs_charge_preallocation()
760 (unsigned long)call, in afs_charge_preallocation()
762 call->debug_id) < 0) in afs_charge_preallocation()
764 call = NULL; in afs_charge_preallocation()
766 net->spare_incoming_call = call; in afs_charge_preallocation()
770 * Discard a preallocated call when a socket is shut down.
775 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_discard_new_call() local
777 call->rxcall = NULL; in afs_rx_discard_new_call()
778 afs_put_call(call); in afs_rx_discard_new_call()
782 * Notification of an incoming call.
787 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_new_call() local
790 call->peer = rxrpc_kernel_get_call_peer(sk->sk_socket, call->rxcall); in afs_rx_new_call()
791 call->server = afs_find_server(call->peer); in afs_rx_new_call()
792 if (!call->server) in afs_rx_new_call()
793 trace_afs_cm_no_server(call, rxrpc_kernel_remote_srx(call->peer)); in afs_rx_new_call()
799 * Grab the operation ID from an incoming cache manager call. The socket
802 static int afs_deliver_cm_op_id(struct afs_call *call) in afs_deliver_cm_op_id() argument
806 _enter("{%zu}", iov_iter_count(call->iter)); in afs_deliver_cm_op_id()
809 ret = afs_extract_data(call, true); in afs_deliver_cm_op_id()
813 call->operation_ID = ntohl(call->tmp); in afs_deliver_cm_op_id()
814 afs_set_call_state(call, AFS_CALL_SV_AWAIT_OP_ID, AFS_CALL_SV_AWAIT_REQUEST); in afs_deliver_cm_op_id()
816 /* ask the cache manager to route the call (it'll change the call type in afs_deliver_cm_op_id()
818 if (!afs_cm_incoming_call(call)) in afs_deliver_cm_op_id()
821 call->security_ix = rxrpc_kernel_query_call_security(call->rxcall, in afs_deliver_cm_op_id()
822 &call->service_id, in afs_deliver_cm_op_id()
823 &call->enctype); in afs_deliver_cm_op_id()
825 trace_afs_cb_call(call); in afs_deliver_cm_op_id()
826 call->work.func = call->type->work; in afs_deliver_cm_op_id()
830 return call->type->deliver(call); in afs_deliver_cm_op_id()
834 * Advance the AFS call state when an RxRPC service call ends the transmit
841 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_reply_tx() local
843 afs_set_call_state(call, AFS_CALL_SV_REPLYING, AFS_CALL_SV_AWAIT_ACK); in afs_notify_end_reply_tx()
849 void afs_send_empty_reply(struct afs_call *call) in afs_send_empty_reply() argument
851 struct afs_net *net = call->net; in afs_send_empty_reply()
856 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, 0); in afs_send_empty_reply()
865 switch (rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, 0, in afs_send_empty_reply()
873 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_empty_reply()
886 void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len) in afs_send_simple_reply() argument
888 struct afs_net *net = call->net; in afs_send_simple_reply()
895 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, len); in afs_send_simple_reply()
906 n = rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, len, in afs_send_simple_reply()
916 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_simple_reply()
926 int afs_extract_data(struct afs_call *call, bool want_more) in afs_extract_data() argument
928 struct afs_net *net = call->net; in afs_extract_data()
929 struct iov_iter *iter = call->iter; in afs_extract_data()
935 call->type->name, call->iov_len, iov_iter_count(iter), want_more); in afs_extract_data()
937 ret = rxrpc_kernel_recv_data(net->socket, call->rxcall, iter, in afs_extract_data()
938 &call->iov_len, want_more, &remote_abort, in afs_extract_data()
939 &call->service_id); in afs_extract_data()
940 trace_afs_receive_data(call, call->iter, want_more, ret); in afs_extract_data()
944 state = READ_ONCE(call->state); in afs_extract_data()
948 afs_set_call_state(call, state, AFS_CALL_CL_PROC_REPLY); in afs_extract_data()
951 afs_set_call_state(call, state, AFS_CALL_SV_REPLYING); in afs_extract_data()
954 kdebug("prem complete %d", call->error); in afs_extract_data()
955 return afs_io_error(call, afs_io_error_extract); in afs_extract_data()
962 afs_set_call_complete(call, ret, remote_abort); in afs_extract_data()
969 noinline int afs_protocol_error(struct afs_call *call, in afs_protocol_error() argument
972 trace_afs_protocol_error(call, cause); in afs_protocol_error()
973 if (call) in afs_protocol_error()
974 call->unmarshalling_error = true; in afs_protocol_error()