Lines Matching full:call
29 /* asynchronous incoming call initial processing */
135 * Allocate a call.
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, type->async_rx ?: afs_process_async_call); in afs_alloc_call()
153 INIT_WORK(&call->work, call->type->work); in afs_alloc_call()
154 INIT_WORK(&call->free_work, afs_deferred_free_worker); in afs_alloc_call()
155 init_waitqueue_head(&call->waitq); in afs_alloc_call()
156 spin_lock_init(&call->state_lock); in afs_alloc_call()
157 call->iter = &call->def_iter; in afs_alloc_call()
160 trace_afs_call(call->debug_id, afs_call_trace_alloc, 1, o, in afs_alloc_call()
162 return call; in afs_alloc_call()
165 static void afs_free_call(struct afs_call *call) in afs_free_call() argument
167 struct afs_net *net = call->net; in afs_free_call()
170 ASSERT(!work_pending(&call->async_work)); in afs_free_call()
172 rxrpc_kernel_put_peer(call->peer); in afs_free_call()
174 if (call->rxcall) { in afs_free_call()
175 rxrpc_kernel_shutdown_call(net->socket, call->rxcall); in afs_free_call()
176 rxrpc_kernel_put_call(net->socket, call->rxcall); in afs_free_call()
177 call->rxcall = NULL; in afs_free_call()
179 if (call->type->destructor) in afs_free_call()
180 call->type->destructor(call); in afs_free_call()
182 afs_unuse_server_notime(call->net, call->server, afs_server_trace_put_call); in afs_free_call()
183 kfree(call->request); in afs_free_call()
186 trace_afs_call(call->debug_id, afs_call_trace_free, 0, o, in afs_free_call()
188 kfree(call); in afs_free_call()
196 * Dispose of a reference on a call.
198 void afs_put_call(struct afs_call *call) in afs_put_call() argument
200 struct afs_net *net = call->net; in afs_put_call()
201 unsigned int debug_id = call->debug_id; in afs_put_call()
205 zero = __refcount_dec_and_test(&call->ref, &r); in afs_put_call()
210 afs_free_call(call); in afs_put_call()
215 struct afs_call *call = container_of(work, struct afs_call, free_work); in afs_deferred_free_worker() local
217 afs_free_call(call); in afs_deferred_free_worker()
221 * Dispose of a reference on a call, deferring the cleanup to a workqueue
224 void afs_deferred_put_call(struct afs_call *call) in afs_deferred_put_call() argument
226 struct afs_net *net = call->net; in afs_deferred_put_call()
227 unsigned int debug_id = call->debug_id; in afs_deferred_put_call()
231 zero = __refcount_dec_and_test(&call->ref, &r); in afs_deferred_put_call()
236 schedule_work(&call->free_work); in afs_deferred_put_call()
240 * Queue the call for actual work.
242 static void afs_queue_call_work(struct afs_call *call) in afs_queue_call_work() argument
244 if (call->type->work) { in afs_queue_call_work()
245 afs_get_call(call, afs_call_trace_work); in afs_queue_call_work()
246 if (!queue_work(afs_wq, &call->work)) in afs_queue_call_work()
247 afs_put_call(call); in afs_queue_call_work()
252 * allocate a call with flat request and reply buffers
258 struct afs_call *call; in afs_alloc_flat_call() local
260 call = afs_alloc_call(net, type, GFP_NOFS); in afs_alloc_flat_call()
261 if (!call) in afs_alloc_flat_call()
265 call->request_size = request_size; in afs_alloc_flat_call()
266 call->request = kmalloc(request_size, GFP_NOFS); in afs_alloc_flat_call()
267 if (!call->request) in afs_alloc_flat_call()
272 call->reply_max = reply_max; in afs_alloc_flat_call()
273 call->buffer = kmalloc(reply_max, GFP_NOFS); in afs_alloc_flat_call()
274 if (!call->buffer) in afs_alloc_flat_call()
278 afs_extract_to_buf(call, call->reply_max); in afs_alloc_flat_call()
279 call->operation_ID = type->op; in afs_alloc_flat_call()
280 init_waitqueue_head(&call->waitq); in afs_alloc_flat_call()
281 return call; in afs_alloc_flat_call()
284 afs_put_call(call); in afs_alloc_flat_call()
290 * clean up a call with flat buffer
292 void afs_flat_call_destructor(struct afs_call *call) in afs_flat_call_destructor() argument
296 kfree(call->request); in afs_flat_call_destructor()
297 call->request = NULL; in afs_flat_call_destructor()
298 kfree(call->buffer); in afs_flat_call_destructor()
299 call->buffer = NULL; in afs_flat_call_destructor()
303 * Advance the AFS call state when the RxRPC call ends the transmit phase.
309 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_request_tx() local
311 afs_set_call_state(call, AFS_CALL_CL_REQUESTING, AFS_CALL_CL_AWAIT_REPLY); in afs_notify_end_request_tx()
315 * Initiate a call and synchronously queue up the parameters for dispatch. Any
316 * error is stored into the call struct, which the caller must check for.
318 void afs_make_call(struct afs_call *call, gfp_t gfp) in afs_make_call() argument
327 _enter(",{%pISp+%u},", rxrpc_kernel_remote_addr(call->peer), call->service_id); in afs_make_call()
329 ASSERT(call->type != NULL); in afs_make_call()
330 ASSERT(call->type->name != NULL); in afs_make_call()
333 call, call->type->name, key_serial(call->key), in afs_make_call()
334 atomic_read(&call->net->nr_outstanding_calls)); in afs_make_call()
336 trace_afs_make_call(call); in afs_make_call()
342 tx_total_len = call->request_size; in afs_make_call()
343 if (call->write_iter) in afs_make_call()
344 tx_total_len += iov_iter_count(call->write_iter); in afs_make_call()
346 /* If the call is going to be asynchronous, we need an extra ref for in afs_make_call()
347 * the call to hold itself so the caller need not hang on to its ref. in afs_make_call()
349 if (call->async) { in afs_make_call()
350 afs_get_call(call, afs_call_trace_get); in afs_make_call()
351 call->drop_ref = true; in afs_make_call()
354 /* create a call */ in afs_make_call()
355 rxcall = rxrpc_kernel_begin_call(call->net->socket, call->peer, call->key, in afs_make_call()
356 (unsigned long)call, in afs_make_call()
358 call->max_lifespan, in afs_make_call()
360 (call->async ? in afs_make_call()
363 call->service_id, in afs_make_call()
364 call->upgrade, in afs_make_call()
365 (call->intr ? RXRPC_PREINTERRUPTIBLE : in afs_make_call()
367 call->debug_id); in afs_make_call()
370 call->error = ret; in afs_make_call()
374 call->rxcall = rxcall; in afs_make_call()
375 call->issue_time = ktime_get_real(); in afs_make_call()
378 iov[0].iov_base = call->request; in afs_make_call()
379 iov[0].iov_len = call->request_size; in afs_make_call()
383 iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, iov, 1, call->request_size); in afs_make_call()
386 msg.msg_flags = MSG_WAITALL | (call->write_iter ? MSG_MORE : 0); in afs_make_call()
388 ret = rxrpc_kernel_send_data(call->net->socket, rxcall, in afs_make_call()
389 &msg, call->request_size, in afs_make_call()
394 if (call->write_iter) { in afs_make_call()
395 msg.msg_iter = *call->write_iter; in afs_make_call()
397 trace_afs_send_data(call, &msg); in afs_make_call()
399 ret = rxrpc_kernel_send_data(call->net->socket, in afs_make_call()
400 call->rxcall, &msg, in afs_make_call()
403 *call->write_iter = msg.msg_iter; in afs_make_call()
405 trace_afs_sent_data(call, &msg, ret); in afs_make_call()
411 * - and an asynchronous call may already have completed. in afs_make_call()
413 * afs_wait_for_call_to_complete(call) in afs_make_call()
420 rxrpc_kernel_abort_call(call->net->socket, rxcall, in afs_make_call()
423 if (call->async) { in afs_make_call()
424 afs_see_call(call, afs_call_trace_async_abort); in afs_make_call()
431 rxrpc_kernel_recv_data(call->net->socket, rxcall, in afs_make_call()
433 &call->abort_code, &call->service_id); in afs_make_call()
434 call->responded = true; in afs_make_call()
436 call->error = ret; in afs_make_call()
437 trace_afs_call_done(call); in afs_make_call()
439 if (call->async) in afs_make_call()
440 afs_see_call(call, afs_call_trace_async_kill); in afs_make_call()
441 if (call->type->immediate_cancel) in afs_make_call()
442 call->type->immediate_cancel(call); in afs_make_call()
444 /* We need to dispose of the extra ref we grabbed for an async call. in afs_make_call()
445 * The call, however, might be queued on afs_async_calls and we need to in afs_make_call()
448 if (call->rxcall) in afs_make_call()
449 rxrpc_kernel_shutdown_call(call->net->socket, call->rxcall); in afs_make_call()
450 if (call->async) { in afs_make_call()
451 if (cancel_work_sync(&call->async_work)) in afs_make_call()
452 afs_put_call(call); in afs_make_call()
453 afs_set_call_complete(call, ret, 0); in afs_make_call()
456 call->error = ret; in afs_make_call()
457 call->state = AFS_CALL_COMPLETE; in afs_make_call()
465 static void afs_log_error(struct afs_call *call, s32 remote_abort) in afs_log_error() argument
489 msg, call->type->name, in afs_log_error()
490 rxrpc_kernel_remote_addr(call->peer)); in afs_log_error()
495 * deliver messages to a call
497 void afs_deliver_to_call(struct afs_call *call) in afs_deliver_to_call() argument
504 _enter("%s", call->type->name); in afs_deliver_to_call()
506 while (state = READ_ONCE(call->state), in afs_deliver_to_call()
514 iov_iter_kvec(&call->def_iter, ITER_DEST, NULL, 0, 0); in afs_deliver_to_call()
515 ret = rxrpc_kernel_recv_data(call->net->socket, in afs_deliver_to_call()
516 call->rxcall, &call->def_iter, in afs_deliver_to_call()
518 &call->service_id); in afs_deliver_to_call()
519 trace_afs_receive_data(call, &call->def_iter, false, ret); in afs_deliver_to_call()
531 ret = call->type->deliver(call); in afs_deliver_to_call()
532 state = READ_ONCE(call->state); in afs_deliver_to_call()
533 if (ret == 0 && call->unmarshalling_error) in afs_deliver_to_call()
537 call->responded = true; in afs_deliver_to_call()
538 afs_queue_call_work(call); in afs_deliver_to_call()
540 if (call->op) in afs_deliver_to_call()
542 &call->op->server->flags); in afs_deliver_to_call()
552 call->responded = true; in afs_deliver_to_call()
553 afs_log_error(call, call->abort_code); in afs_deliver_to_call()
556 call->responded = true; in afs_deliver_to_call()
558 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
563 pr_err("kAFS: Call %u in bad state %u\n", in afs_deliver_to_call()
564 call->debug_id, state); in afs_deliver_to_call()
574 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
580 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
588 if (call->type->done) in afs_deliver_to_call()
589 call->type->done(call); in afs_deliver_to_call()
597 afs_set_call_complete(call, ret, remote_abort); in afs_deliver_to_call()
602 * Wait synchronously for a call to complete.
604 void afs_wait_for_call_to_complete(struct afs_call *call) in afs_wait_for_call_to_complete() argument
610 if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) { in afs_wait_for_call_to_complete()
613 add_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
618 if (!afs_check_call_state(call, AFS_CALL_COMPLETE) && in afs_wait_for_call_to_complete()
619 call->need_attention) { in afs_wait_for_call_to_complete()
620 call->need_attention = false; in afs_wait_for_call_to_complete()
622 afs_deliver_to_call(call); in afs_wait_for_call_to_complete()
626 if (afs_check_call_state(call, AFS_CALL_COMPLETE)) in afs_wait_for_call_to_complete()
629 if (!rxrpc_kernel_check_life(call->net->socket, call->rxcall)) { in afs_wait_for_call_to_complete()
630 /* rxrpc terminated the call. */ in afs_wait_for_call_to_complete()
638 remove_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
642 if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) { in afs_wait_for_call_to_complete()
644 afs_set_call_complete(call, call->error, call->abort_code); in afs_wait_for_call_to_complete()
646 /* Kill off the call if it's still live. */ in afs_wait_for_call_to_complete()
647 _debug("call interrupted"); in afs_wait_for_call_to_complete()
648 if (rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_wait_for_call_to_complete()
651 afs_set_call_complete(call, -EINTR, 0); in afs_wait_for_call_to_complete()
657 * wake up a waiting call
662 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_call_waiter() local
664 call->need_attention = true; in afs_wake_up_call_waiter()
665 wake_up(&call->waitq); in afs_wake_up_call_waiter()
669 * Wake up an asynchronous call. The caller is holding the call notify
670 * spinlock around this, so we can't call afs_put_call().
675 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_async_call() local
678 trace_afs_notify_call(rxcall, call); in afs_wake_up_async_call()
679 call->need_attention = true; in afs_wake_up_async_call()
681 if (__refcount_inc_not_zero(&call->ref, &r)) { in afs_wake_up_async_call()
682 trace_afs_call(call->debug_id, afs_call_trace_wake, r + 1, in afs_wake_up_async_call()
683 atomic_read(&call->net->nr_outstanding_calls), in afs_wake_up_async_call()
686 if (!queue_work(afs_async_calls, &call->async_work)) in afs_wake_up_async_call()
687 afs_deferred_put_call(call); in afs_wake_up_async_call()
692 * Perform I/O processing on an asynchronous call. The work item carries a ref
693 * to the call struct that we either need to release or to pass on.
697 struct afs_call *call = container_of(work, struct afs_call, async_work); in afs_process_async_call() local
701 if (call->state < AFS_CALL_COMPLETE && call->need_attention) { in afs_process_async_call()
702 call->need_attention = false; in afs_process_async_call()
703 afs_deliver_to_call(call); in afs_process_async_call()
706 afs_put_call(call); in afs_process_async_call()
712 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_attach() local
714 call->rxcall = rxcall; in afs_rx_attach()
718 * Charge the incoming call preallocation.
724 struct afs_call *call = net->spare_incoming_call; in afs_charge_preallocation() local
727 if (!call) { in afs_charge_preallocation()
728 call = afs_alloc_call(net, &afs_RXCMxxxx, GFP_KERNEL); in afs_charge_preallocation()
729 if (!call) in afs_charge_preallocation()
732 call->drop_ref = true; in afs_charge_preallocation()
733 call->async = true; in afs_charge_preallocation()
734 call->state = AFS_CALL_SV_AWAIT_OP_ID; in afs_charge_preallocation()
735 init_waitqueue_head(&call->waitq); in afs_charge_preallocation()
736 afs_extract_to_tmp(call); in afs_charge_preallocation()
742 (unsigned long)call, in afs_charge_preallocation()
744 call->debug_id) < 0) in afs_charge_preallocation()
746 call = NULL; in afs_charge_preallocation()
748 net->spare_incoming_call = call; in afs_charge_preallocation()
752 * Discard a preallocated call when a socket is shut down.
757 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_discard_new_call() local
759 call->rxcall = NULL; in afs_rx_discard_new_call()
760 afs_put_call(call); in afs_rx_discard_new_call()
764 * Notification of an incoming call.
775 * Grab the operation ID from an incoming cache manager call. The socket
778 static int afs_deliver_cm_op_id(struct afs_call *call) in afs_deliver_cm_op_id() argument
782 _enter("{%zu}", iov_iter_count(call->iter)); in afs_deliver_cm_op_id()
785 ret = afs_extract_data(call, true); in afs_deliver_cm_op_id()
789 call->operation_ID = ntohl(call->tmp); in afs_deliver_cm_op_id()
790 afs_set_call_state(call, AFS_CALL_SV_AWAIT_OP_ID, AFS_CALL_SV_AWAIT_REQUEST); in afs_deliver_cm_op_id()
792 /* ask the cache manager to route the call (it'll change the call type in afs_deliver_cm_op_id()
794 if (!afs_cm_incoming_call(call)) in afs_deliver_cm_op_id()
797 trace_afs_cb_call(call); in afs_deliver_cm_op_id()
798 call->work.func = call->type->work; in afs_deliver_cm_op_id()
802 return call->type->deliver(call); in afs_deliver_cm_op_id()
806 * Advance the AFS call state when an RxRPC service call ends the transmit
813 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_reply_tx() local
815 afs_set_call_state(call, AFS_CALL_SV_REPLYING, AFS_CALL_SV_AWAIT_ACK); in afs_notify_end_reply_tx()
821 void afs_send_empty_reply(struct afs_call *call) in afs_send_empty_reply() argument
823 struct afs_net *net = call->net; in afs_send_empty_reply()
828 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, 0); in afs_send_empty_reply()
837 switch (rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, 0, in afs_send_empty_reply()
845 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_empty_reply()
858 void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len) in afs_send_simple_reply() argument
860 struct afs_net *net = call->net; in afs_send_simple_reply()
867 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, len); in afs_send_simple_reply()
878 n = rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, len, in afs_send_simple_reply()
888 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_simple_reply()
898 int afs_extract_data(struct afs_call *call, bool want_more) in afs_extract_data() argument
900 struct afs_net *net = call->net; in afs_extract_data()
901 struct iov_iter *iter = call->iter; in afs_extract_data()
907 call->type->name, call->iov_len, iov_iter_count(iter), want_more); in afs_extract_data()
909 ret = rxrpc_kernel_recv_data(net->socket, call->rxcall, iter, in afs_extract_data()
910 &call->iov_len, want_more, &remote_abort, in afs_extract_data()
911 &call->service_id); in afs_extract_data()
912 trace_afs_receive_data(call, call->iter, want_more, ret); in afs_extract_data()
916 state = READ_ONCE(call->state); in afs_extract_data()
920 afs_set_call_state(call, state, AFS_CALL_CL_PROC_REPLY); in afs_extract_data()
923 afs_set_call_state(call, state, AFS_CALL_SV_REPLYING); in afs_extract_data()
926 kdebug("prem complete %d", call->error); in afs_extract_data()
927 return afs_io_error(call, afs_io_error_extract); in afs_extract_data()
934 afs_set_call_complete(call, ret, remote_abort); in afs_extract_data()
941 noinline int afs_protocol_error(struct afs_call *call, in afs_protocol_error() argument
944 trace_afs_protocol_error(call, cause); in afs_protocol_error()
945 if (call) in afs_protocol_error()
946 call->unmarshalling_error = true; in afs_protocol_error()