Lines Matching full:call
26 /* asynchronous incoming call initial processing */
132 * Allocate a call.
138 struct afs_call *call; in afs_alloc_call() local
141 call = kzalloc(sizeof(*call), gfp); in afs_alloc_call()
142 if (!call) in afs_alloc_call()
145 call->type = type; in afs_alloc_call()
146 call->net = net; in afs_alloc_call()
147 call->debug_id = atomic_inc_return(&rxrpc_debug_id); in afs_alloc_call()
148 atomic_set(&call->usage, 1); in afs_alloc_call()
149 INIT_WORK(&call->async_work, afs_process_async_call); in afs_alloc_call()
150 init_waitqueue_head(&call->waitq); in afs_alloc_call()
151 spin_lock_init(&call->state_lock); in afs_alloc_call()
152 call->iter = &call->def_iter; in afs_alloc_call()
155 trace_afs_call(call, afs_call_trace_alloc, 1, o, in afs_alloc_call()
157 return call; in afs_alloc_call()
161 * Dispose of a reference on a call.
163 void afs_put_call(struct afs_call *call) in afs_put_call() argument
165 struct afs_net *net = call->net; in afs_put_call()
166 int n = atomic_dec_return(&call->usage); in afs_put_call()
169 trace_afs_call(call, afs_call_trace_put, n, o, in afs_put_call()
174 ASSERT(!work_pending(&call->async_work)); in afs_put_call()
175 ASSERT(call->type->name != NULL); in afs_put_call()
177 if (call->rxcall) { in afs_put_call()
178 rxrpc_kernel_end_call(net->socket, call->rxcall); in afs_put_call()
179 call->rxcall = NULL; in afs_put_call()
181 if (call->type->destructor) in afs_put_call()
182 call->type->destructor(call); in afs_put_call()
184 afs_unuse_server_notime(call->net, call->server, afs_server_trace_put_call); in afs_put_call()
185 afs_put_addrlist(call->alist); in afs_put_call()
186 kfree(call->request); in afs_put_call()
188 trace_afs_call(call, afs_call_trace_free, 0, o, in afs_put_call()
190 kfree(call); in afs_put_call()
198 static struct afs_call *afs_get_call(struct afs_call *call, in afs_get_call() argument
201 int u = atomic_inc_return(&call->usage); in afs_get_call()
203 trace_afs_call(call, why, u, in afs_get_call()
204 atomic_read(&call->net->nr_outstanding_calls), in afs_get_call()
206 return call; in afs_get_call()
210 * Queue the call for actual work.
212 static void afs_queue_call_work(struct afs_call *call) in afs_queue_call_work() argument
214 if (call->type->work) { in afs_queue_call_work()
215 INIT_WORK(&call->work, call->type->work); in afs_queue_call_work()
217 afs_get_call(call, afs_call_trace_work); in afs_queue_call_work()
218 if (!queue_work(afs_wq, &call->work)) in afs_queue_call_work()
219 afs_put_call(call); in afs_queue_call_work()
224 * allocate a call with flat request and reply buffers
230 struct afs_call *call; in afs_alloc_flat_call() local
232 call = afs_alloc_call(net, type, GFP_NOFS); in afs_alloc_flat_call()
233 if (!call) in afs_alloc_flat_call()
237 call->request_size = request_size; in afs_alloc_flat_call()
238 call->request = kmalloc(request_size, GFP_NOFS); in afs_alloc_flat_call()
239 if (!call->request) in afs_alloc_flat_call()
244 call->reply_max = reply_max; in afs_alloc_flat_call()
245 call->buffer = kmalloc(reply_max, GFP_NOFS); in afs_alloc_flat_call()
246 if (!call->buffer) in afs_alloc_flat_call()
250 afs_extract_to_buf(call, call->reply_max); in afs_alloc_flat_call()
251 call->operation_ID = type->op; in afs_alloc_flat_call()
252 init_waitqueue_head(&call->waitq); in afs_alloc_flat_call()
253 return call; in afs_alloc_flat_call()
256 afs_put_call(call); in afs_alloc_flat_call()
262 * clean up a call with flat buffer
264 void afs_flat_call_destructor(struct afs_call *call) in afs_flat_call_destructor() argument
268 kfree(call->request); in afs_flat_call_destructor()
269 call->request = NULL; in afs_flat_call_destructor()
270 kfree(call->buffer); in afs_flat_call_destructor()
271 call->buffer = NULL; in afs_flat_call_destructor()
279 static void afs_load_bvec(struct afs_call *call, struct msghdr *msg, in afs_load_bvec() argument
283 struct afs_operation *op = call->op; in afs_load_bvec()
309 * Advance the AFS call state when the RxRPC call ends the transmit phase.
315 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_request_tx() local
317 afs_set_call_state(call, AFS_CALL_CL_REQUESTING, AFS_CALL_CL_AWAIT_REPLY); in afs_notify_end_request_tx()
321 * attach the data from a bunch of pages on an inode to a call
323 static int afs_send_pages(struct afs_call *call, struct msghdr *msg) in afs_send_pages() argument
325 struct afs_operation *op = call->op; in afs_send_pages()
335 afs_load_bvec(call, msg, bv, first, last, offset); in afs_send_pages()
336 trace_afs_send_pages(call, msg, first, last, offset); in afs_send_pages()
342 ret = rxrpc_kernel_send_data(op->net->socket, call->rxcall, msg, in afs_send_pages()
352 trace_afs_sent_pages(call, op->store.first, last, first, ret); in afs_send_pages()
357 * Initiate a call and synchronously queue up the parameters for dispatch. Any
358 * error is stored into the call struct, which the caller must check for.
360 void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) in afs_make_call() argument
371 ASSERT(call->type != NULL); in afs_make_call()
372 ASSERT(call->type->name != NULL); in afs_make_call()
375 call, call->type->name, key_serial(call->key), in afs_make_call()
376 atomic_read(&call->net->nr_outstanding_calls)); in afs_make_call()
378 call->addr_ix = ac->index; in afs_make_call()
379 call->alist = afs_get_addrlist(ac->alist); in afs_make_call()
385 tx_total_len = call->request_size; in afs_make_call()
386 if (call->send_pages) { in afs_make_call()
387 struct afs_operation *op = call->op; in afs_make_call()
402 /* If the call is going to be asynchronous, we need an extra ref for in afs_make_call()
403 * the call to hold itself so the caller need not hang on to its ref. in afs_make_call()
405 if (call->async) { in afs_make_call()
406 afs_get_call(call, afs_call_trace_get); in afs_make_call()
407 call->drop_ref = true; in afs_make_call()
410 /* create a call */ in afs_make_call()
411 rxcall = rxrpc_kernel_begin_call(call->net->socket, srx, call->key, in afs_make_call()
412 (unsigned long)call, in afs_make_call()
414 (call->async ? in afs_make_call()
417 call->upgrade, in afs_make_call()
418 (call->intr ? RXRPC_PREINTERRUPTIBLE : in afs_make_call()
420 call->debug_id); in afs_make_call()
423 call->error = ret; in afs_make_call()
427 call->rxcall = rxcall; in afs_make_call()
429 if (call->max_lifespan) in afs_make_call()
430 rxrpc_kernel_set_max_life(call->net->socket, rxcall, in afs_make_call()
431 call->max_lifespan); in afs_make_call()
434 iov[0].iov_base = call->request; in afs_make_call()
435 iov[0].iov_len = call->request_size; in afs_make_call()
439 iov_iter_kvec(&msg.msg_iter, WRITE, iov, 1, call->request_size); in afs_make_call()
442 msg.msg_flags = MSG_WAITALL | (call->send_pages ? MSG_MORE : 0); in afs_make_call()
444 ret = rxrpc_kernel_send_data(call->net->socket, rxcall, in afs_make_call()
445 &msg, call->request_size, in afs_make_call()
450 if (call->send_pages) { in afs_make_call()
451 ret = afs_send_pages(call, &msg); in afs_make_call()
457 * - and an asynchronous call may already have completed. in afs_make_call()
459 * afs_wait_for_call_to_complete(call, ac) in afs_make_call()
466 rxrpc_kernel_abort_call(call->net->socket, rxcall, in afs_make_call()
470 rxrpc_kernel_recv_data(call->net->socket, rxcall, in afs_make_call()
472 &call->abort_code, &call->service_id); in afs_make_call()
473 ac->abort_code = call->abort_code; in afs_make_call()
476 call->error = ret; in afs_make_call()
477 trace_afs_call_done(call); in afs_make_call()
479 if (call->type->done) in afs_make_call()
480 call->type->done(call); in afs_make_call()
482 /* We need to dispose of the extra ref we grabbed for an async call. in afs_make_call()
483 * The call, however, might be queued on afs_async_calls and we need to in afs_make_call()
486 if (call->rxcall) { in afs_make_call()
487 rxrpc_kernel_end_call(call->net->socket, call->rxcall); in afs_make_call()
488 call->rxcall = NULL; in afs_make_call()
490 if (call->async) { in afs_make_call()
491 if (cancel_work_sync(&call->async_work)) in afs_make_call()
492 afs_put_call(call); in afs_make_call()
493 afs_put_call(call); in afs_make_call()
497 call->state = AFS_CALL_COMPLETE; in afs_make_call()
502 * deliver messages to a call
504 static void afs_deliver_to_call(struct afs_call *call) in afs_deliver_to_call() argument
510 _enter("%s", call->type->name); in afs_deliver_to_call()
512 while (state = READ_ONCE(call->state), in afs_deliver_to_call()
519 iov_iter_kvec(&call->def_iter, READ, NULL, 0, 0); in afs_deliver_to_call()
520 ret = rxrpc_kernel_recv_data(call->net->socket, in afs_deliver_to_call()
521 call->rxcall, &call->def_iter, in afs_deliver_to_call()
523 &call->service_id); in afs_deliver_to_call()
524 trace_afs_receive_data(call, &call->def_iter, false, ret); in afs_deliver_to_call()
536 if (!call->have_reply_time && in afs_deliver_to_call()
537 rxrpc_kernel_get_reply_time(call->net->socket, in afs_deliver_to_call()
538 call->rxcall, in afs_deliver_to_call()
539 &call->reply_time)) in afs_deliver_to_call()
540 call->have_reply_time = true; in afs_deliver_to_call()
542 ret = call->type->deliver(call); in afs_deliver_to_call()
543 state = READ_ONCE(call->state); in afs_deliver_to_call()
544 if (ret == 0 && call->unmarshalling_error) in afs_deliver_to_call()
548 afs_queue_call_work(call); in afs_deliver_to_call()
550 if (call->op) in afs_deliver_to_call()
552 &call->op->server->flags); in afs_deliver_to_call()
565 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
569 pr_err("kAFS: Call %u in bad state %u\n", in afs_deliver_to_call()
570 call->debug_id, state); in afs_deliver_to_call()
578 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
583 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
590 if (call->type->done) in afs_deliver_to_call()
591 call->type->done(call); in afs_deliver_to_call()
599 afs_set_call_complete(call, ret, remote_abort); in afs_deliver_to_call()
605 * Wait synchronously for a call to complete and clean up the call struct.
607 long afs_wait_for_call_to_complete(struct afs_call *call, in afs_wait_for_call_to_complete() argument
617 ret = call->error; 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()
638 /* rxrpc terminated the call. */ in afs_wait_for_call_to_complete()
646 remove_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
649 if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) { in afs_wait_for_call_to_complete()
651 afs_set_call_complete(call, call->error, call->abort_code); in afs_wait_for_call_to_complete()
653 /* Kill off the call if it's still live. */ in afs_wait_for_call_to_complete()
654 _debug("call interrupted"); in afs_wait_for_call_to_complete()
655 if (rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_wait_for_call_to_complete()
657 afs_set_call_complete(call, -EINTR, 0); in afs_wait_for_call_to_complete()
661 spin_lock_bh(&call->state_lock); in afs_wait_for_call_to_complete()
662 ac->abort_code = call->abort_code; in afs_wait_for_call_to_complete()
663 ac->error = call->error; in afs_wait_for_call_to_complete()
664 spin_unlock_bh(&call->state_lock); in afs_wait_for_call_to_complete()
669 ret = call->ret0; in afs_wait_for_call_to_complete()
670 call->ret0 = 0; in afs_wait_for_call_to_complete()
679 _debug("call complete"); in afs_wait_for_call_to_complete()
680 afs_put_call(call); in afs_wait_for_call_to_complete()
686 * wake up a waiting call
691 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_call_waiter() local
693 call->need_attention = true; in afs_wake_up_call_waiter()
694 wake_up(&call->waitq); in afs_wake_up_call_waiter()
698 * wake up an asynchronous call
703 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_async_call() local
706 trace_afs_notify_call(rxcall, call); in afs_wake_up_async_call()
707 call->need_attention = true; in afs_wake_up_async_call()
709 u = atomic_fetch_add_unless(&call->usage, 1, 0); in afs_wake_up_async_call()
711 trace_afs_call(call, afs_call_trace_wake, u + 1, in afs_wake_up_async_call()
712 atomic_read(&call->net->nr_outstanding_calls), in afs_wake_up_async_call()
715 if (!queue_work(afs_async_calls, &call->async_work)) in afs_wake_up_async_call()
716 afs_put_call(call); in afs_wake_up_async_call()
721 * Perform I/O processing on an asynchronous call. The work item carries a ref
722 * to the call struct that we either need to release or to pass on.
726 struct afs_call *call = container_of(work, struct afs_call, async_work); in afs_process_async_call() local
730 if (call->state < AFS_CALL_COMPLETE && call->need_attention) { in afs_process_async_call()
731 call->need_attention = false; in afs_process_async_call()
732 afs_deliver_to_call(call); in afs_process_async_call()
735 afs_put_call(call); in afs_process_async_call()
741 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_attach() local
743 call->rxcall = rxcall; in afs_rx_attach()
747 * Charge the incoming call preallocation.
753 struct afs_call *call = net->spare_incoming_call; in afs_charge_preallocation() local
756 if (!call) { in afs_charge_preallocation()
757 call = afs_alloc_call(net, &afs_RXCMxxxx, GFP_KERNEL); in afs_charge_preallocation()
758 if (!call) in afs_charge_preallocation()
761 call->drop_ref = true; in afs_charge_preallocation()
762 call->async = true; in afs_charge_preallocation()
763 call->state = AFS_CALL_SV_AWAIT_OP_ID; in afs_charge_preallocation()
764 init_waitqueue_head(&call->waitq); in afs_charge_preallocation()
765 afs_extract_to_tmp(call); in afs_charge_preallocation()
771 (unsigned long)call, in afs_charge_preallocation()
773 call->debug_id) < 0) in afs_charge_preallocation()
775 call = NULL; in afs_charge_preallocation()
777 net->spare_incoming_call = call; in afs_charge_preallocation()
781 * Discard a preallocated call when a socket is shut down.
786 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_discard_new_call() local
788 call->rxcall = NULL; in afs_rx_discard_new_call()
789 afs_put_call(call); in afs_rx_discard_new_call()
793 * Notification of an incoming call.
804 * Grab the operation ID from an incoming cache manager call. The socket
807 static int afs_deliver_cm_op_id(struct afs_call *call) in afs_deliver_cm_op_id() argument
811 _enter("{%zu}", iov_iter_count(call->iter)); in afs_deliver_cm_op_id()
814 ret = afs_extract_data(call, true); in afs_deliver_cm_op_id()
818 call->operation_ID = ntohl(call->tmp); in afs_deliver_cm_op_id()
819 afs_set_call_state(call, AFS_CALL_SV_AWAIT_OP_ID, AFS_CALL_SV_AWAIT_REQUEST); in afs_deliver_cm_op_id()
821 /* ask the cache manager to route the call (it'll change the call type in afs_deliver_cm_op_id()
823 if (!afs_cm_incoming_call(call)) in afs_deliver_cm_op_id()
826 trace_afs_cb_call(call); 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()
885 void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len) in afs_send_simple_reply() argument
887 struct afs_net *net = call->net; in afs_send_simple_reply()
894 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, len); in afs_send_simple_reply()
905 n = rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, len, in afs_send_simple_reply()
915 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_simple_reply()
924 int afs_extract_data(struct afs_call *call, bool want_more) in afs_extract_data() argument
926 struct afs_net *net = call->net; in afs_extract_data()
927 struct iov_iter *iter = call->iter; in afs_extract_data()
932 _enter("{%s,%zu},%d", call->type->name, iov_iter_count(iter), want_more); in afs_extract_data()
934 ret = rxrpc_kernel_recv_data(net->socket, call->rxcall, iter, in afs_extract_data()
936 &call->service_id); in afs_extract_data()
940 state = READ_ONCE(call->state); in afs_extract_data()
944 afs_set_call_state(call, state, AFS_CALL_CL_PROC_REPLY); in afs_extract_data()
947 afs_set_call_state(call, state, AFS_CALL_SV_REPLYING); in afs_extract_data()
950 kdebug("prem complete %d", call->error); in afs_extract_data()
951 return afs_io_error(call, afs_io_error_extract); in afs_extract_data()
958 afs_set_call_complete(call, ret, remote_abort); in afs_extract_data()
965 noinline int afs_protocol_error(struct afs_call *call, in afs_protocol_error() argument
968 trace_afs_protocol_error(call, cause); in afs_protocol_error()
969 if (call) in afs_protocol_error()
970 call->unmarshalling_error = true; in afs_protocol_error()