Lines Matching full:call
28 /* asynchronous incoming call initial processing */
134 * Allocate a call.
140 struct afs_call *call; in afs_alloc_call() local
143 call = kzalloc(sizeof(*call), gfp); in afs_alloc_call()
144 if (!call) in afs_alloc_call()
147 call->type = type; in afs_alloc_call()
148 call->net = net; in afs_alloc_call()
149 call->debug_id = atomic_inc_return(&rxrpc_debug_id); in afs_alloc_call()
150 refcount_set(&call->ref, 1); in afs_alloc_call()
151 INIT_WORK(&call->async_work, afs_process_async_call); in afs_alloc_call()
152 init_waitqueue_head(&call->waitq); in afs_alloc_call()
153 spin_lock_init(&call->state_lock); in afs_alloc_call()
154 call->iter = &call->def_iter; in afs_alloc_call()
157 trace_afs_call(call->debug_id, afs_call_trace_alloc, 1, o, in afs_alloc_call()
159 return call; in afs_alloc_call()
163 * Dispose of a reference on a call.
165 void afs_put_call(struct afs_call *call) in afs_put_call() argument
167 struct afs_net *net = call->net; in afs_put_call()
168 unsigned int debug_id = call->debug_id; in afs_put_call()
172 zero = __refcount_dec_and_test(&call->ref, &r); in afs_put_call()
178 ASSERT(!work_pending(&call->async_work)); in afs_put_call()
179 ASSERT(call->type->name != NULL); in afs_put_call()
181 if (call->rxcall) { in afs_put_call()
182 rxrpc_kernel_shutdown_call(net->socket, call->rxcall); in afs_put_call()
183 rxrpc_kernel_put_call(net->socket, call->rxcall); in afs_put_call()
184 call->rxcall = NULL; in afs_put_call()
186 if (call->type->destructor) in afs_put_call()
187 call->type->destructor(call); in afs_put_call()
189 afs_unuse_server_notime(call->net, call->server, afs_server_trace_put_call); in afs_put_call()
190 afs_put_addrlist(call->alist); in afs_put_call()
191 kfree(call->request); in afs_put_call()
193 trace_afs_call(call->debug_id, afs_call_trace_free, 0, o, in afs_put_call()
195 kfree(call); in afs_put_call()
203 static struct afs_call *afs_get_call(struct afs_call *call, in afs_get_call() argument
208 __refcount_inc(&call->ref, &r); in afs_get_call()
210 trace_afs_call(call->debug_id, why, r + 1, in afs_get_call()
211 atomic_read(&call->net->nr_outstanding_calls), in afs_get_call()
213 return call; in afs_get_call()
217 * Queue the call for actual work.
219 static void afs_queue_call_work(struct afs_call *call) in afs_queue_call_work() argument
221 if (call->type->work) { in afs_queue_call_work()
222 INIT_WORK(&call->work, call->type->work); in afs_queue_call_work()
224 afs_get_call(call, afs_call_trace_work); in afs_queue_call_work()
225 if (!queue_work(afs_wq, &call->work)) in afs_queue_call_work()
226 afs_put_call(call); in afs_queue_call_work()
231 * allocate a call with flat request and reply buffers
237 struct afs_call *call; in afs_alloc_flat_call() local
239 call = afs_alloc_call(net, type, GFP_NOFS); in afs_alloc_flat_call()
240 if (!call) in afs_alloc_flat_call()
244 call->request_size = request_size; in afs_alloc_flat_call()
245 call->request = kmalloc(request_size, GFP_NOFS); in afs_alloc_flat_call()
246 if (!call->request) in afs_alloc_flat_call()
251 call->reply_max = reply_max; in afs_alloc_flat_call()
252 call->buffer = kmalloc(reply_max, GFP_NOFS); in afs_alloc_flat_call()
253 if (!call->buffer) in afs_alloc_flat_call()
257 afs_extract_to_buf(call, call->reply_max); in afs_alloc_flat_call()
258 call->operation_ID = type->op; in afs_alloc_flat_call()
259 init_waitqueue_head(&call->waitq); in afs_alloc_flat_call()
260 return call; in afs_alloc_flat_call()
263 afs_put_call(call); in afs_alloc_flat_call()
269 * clean up a call with flat buffer
271 void afs_flat_call_destructor(struct afs_call *call) in afs_flat_call_destructor() argument
275 kfree(call->request); in afs_flat_call_destructor()
276 call->request = NULL; in afs_flat_call_destructor()
277 kfree(call->buffer); in afs_flat_call_destructor()
278 call->buffer = NULL; in afs_flat_call_destructor()
282 * Advance the AFS call state when the RxRPC call ends the transmit phase.
288 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_request_tx() local
290 afs_set_call_state(call, AFS_CALL_CL_REQUESTING, AFS_CALL_CL_AWAIT_REPLY); in afs_notify_end_request_tx()
294 * Initiate a call and synchronously queue up the parameters for dispatch. Any
295 * error is stored into the call struct, which the caller must check for.
297 void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) in afs_make_call() argument
309 ASSERT(call->type != NULL); in afs_make_call()
310 ASSERT(call->type->name != NULL); in afs_make_call()
313 call, call->type->name, key_serial(call->key), in afs_make_call()
314 atomic_read(&call->net->nr_outstanding_calls)); in afs_make_call()
316 call->addr_ix = ac->index; in afs_make_call()
317 call->alist = afs_get_addrlist(ac->alist); in afs_make_call()
323 tx_total_len = call->request_size; in afs_make_call()
324 if (call->write_iter) in afs_make_call()
325 tx_total_len += iov_iter_count(call->write_iter); in afs_make_call()
327 /* If the call is going to be asynchronous, we need an extra ref for in afs_make_call()
328 * the call to hold itself so the caller need not hang on to its ref. in afs_make_call()
330 if (call->async) { in afs_make_call()
331 afs_get_call(call, afs_call_trace_get); in afs_make_call()
332 call->drop_ref = true; in afs_make_call()
335 /* create a call */ in afs_make_call()
336 rxcall = rxrpc_kernel_begin_call(call->net->socket, srx, call->key, in afs_make_call()
337 (unsigned long)call, in afs_make_call()
339 call->max_lifespan, in afs_make_call()
341 (call->async ? in afs_make_call()
344 call->upgrade, in afs_make_call()
345 (call->intr ? RXRPC_PREINTERRUPTIBLE : in afs_make_call()
347 call->debug_id); in afs_make_call()
350 call->error = ret; in afs_make_call()
354 call->rxcall = rxcall; in afs_make_call()
355 call->issue_time = ktime_get_real(); in afs_make_call()
358 iov[0].iov_base = call->request; in afs_make_call()
359 iov[0].iov_len = call->request_size; in afs_make_call()
363 iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, iov, 1, call->request_size); in afs_make_call()
366 msg.msg_flags = MSG_WAITALL | (call->write_iter ? MSG_MORE : 0); in afs_make_call()
368 ret = rxrpc_kernel_send_data(call->net->socket, rxcall, in afs_make_call()
369 &msg, call->request_size, in afs_make_call()
374 if (call->write_iter) { in afs_make_call()
375 msg.msg_iter = *call->write_iter; in afs_make_call()
377 trace_afs_send_data(call, &msg); in afs_make_call()
379 ret = rxrpc_kernel_send_data(call->net->socket, in afs_make_call()
380 call->rxcall, &msg, in afs_make_call()
383 *call->write_iter = msg.msg_iter; in afs_make_call()
385 trace_afs_sent_data(call, &msg, ret); in afs_make_call()
391 * - and an asynchronous call may already have completed. in afs_make_call()
393 * afs_wait_for_call_to_complete(call, ac) in afs_make_call()
400 rxrpc_kernel_abort_call(call->net->socket, rxcall, in afs_make_call()
406 rxrpc_kernel_recv_data(call->net->socket, rxcall, in afs_make_call()
408 &call->abort_code, &call->service_id); in afs_make_call()
409 ac->abort_code = call->abort_code; in afs_make_call()
412 call->error = ret; in afs_make_call()
413 trace_afs_call_done(call); in afs_make_call()
415 if (call->type->done) in afs_make_call()
416 call->type->done(call); in afs_make_call()
418 /* We need to dispose of the extra ref we grabbed for an async call. in afs_make_call()
419 * The call, however, might be queued on afs_async_calls and we need to in afs_make_call()
422 if (call->rxcall) in afs_make_call()
423 rxrpc_kernel_shutdown_call(call->net->socket, call->rxcall); in afs_make_call()
424 if (call->async) { in afs_make_call()
425 if (cancel_work_sync(&call->async_work)) in afs_make_call()
426 afs_put_call(call); in afs_make_call()
427 afs_set_call_complete(call, ret, 0); in afs_make_call()
431 call->state = AFS_CALL_COMPLETE; in afs_make_call()
439 static void afs_log_error(struct afs_call *call, s32 remote_abort) in afs_log_error() argument
463 msg, call->type->name, in afs_log_error()
464 &call->alist->addrs[call->addr_ix].transport); in afs_log_error()
469 * deliver messages to a call
471 static void afs_deliver_to_call(struct afs_call *call) in afs_deliver_to_call() argument
478 _enter("%s", call->type->name); in afs_deliver_to_call()
480 while (state = READ_ONCE(call->state), in afs_deliver_to_call()
488 iov_iter_kvec(&call->def_iter, ITER_DEST, NULL, 0, 0); in afs_deliver_to_call()
489 ret = rxrpc_kernel_recv_data(call->net->socket, in afs_deliver_to_call()
490 call->rxcall, &call->def_iter, in afs_deliver_to_call()
492 &call->service_id); in afs_deliver_to_call()
493 trace_afs_receive_data(call, &call->def_iter, false, ret); in afs_deliver_to_call()
505 ret = call->type->deliver(call); in afs_deliver_to_call()
506 state = READ_ONCE(call->state); in afs_deliver_to_call()
507 if (ret == 0 && call->unmarshalling_error) in afs_deliver_to_call()
511 afs_queue_call_work(call); in afs_deliver_to_call()
513 if (call->op) in afs_deliver_to_call()
515 &call->op->server->flags); in afs_deliver_to_call()
525 afs_log_error(call, call->abort_code); in afs_deliver_to_call()
529 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
534 pr_err("kAFS: Call %u in bad state %u\n", in afs_deliver_to_call()
535 call->debug_id, state); in afs_deliver_to_call()
545 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
551 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
559 if (call->type->done) in afs_deliver_to_call()
560 call->type->done(call); in afs_deliver_to_call()
568 afs_set_call_complete(call, ret, remote_abort); in afs_deliver_to_call()
574 * Wait synchronously for a call to complete and clean up the call struct.
576 long afs_wait_for_call_to_complete(struct afs_call *call, in afs_wait_for_call_to_complete() argument
586 ret = call->error; in afs_wait_for_call_to_complete()
590 add_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
595 if (!afs_check_call_state(call, AFS_CALL_COMPLETE) && in afs_wait_for_call_to_complete()
596 call->need_attention) { in afs_wait_for_call_to_complete()
597 call->need_attention = false; in afs_wait_for_call_to_complete()
599 afs_deliver_to_call(call); in afs_wait_for_call_to_complete()
603 if (afs_check_call_state(call, AFS_CALL_COMPLETE)) in afs_wait_for_call_to_complete()
606 if (!rxrpc_kernel_check_life(call->net->socket, call->rxcall)) { in afs_wait_for_call_to_complete()
607 /* rxrpc terminated the call. */ in afs_wait_for_call_to_complete()
615 remove_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()
620 afs_set_call_complete(call, call->error, call->abort_code); in afs_wait_for_call_to_complete()
622 /* Kill off the call if it's still live. */ in afs_wait_for_call_to_complete()
623 _debug("call interrupted"); in afs_wait_for_call_to_complete()
624 if (rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_wait_for_call_to_complete()
627 afs_set_call_complete(call, -EINTR, 0); in afs_wait_for_call_to_complete()
631 spin_lock_bh(&call->state_lock); in afs_wait_for_call_to_complete()
632 ac->abort_code = call->abort_code; in afs_wait_for_call_to_complete()
633 ac->error = call->error; in afs_wait_for_call_to_complete()
634 spin_unlock_bh(&call->state_lock); in afs_wait_for_call_to_complete()
639 ret = call->ret0; in afs_wait_for_call_to_complete()
640 call->ret0 = 0; in afs_wait_for_call_to_complete()
649 _debug("call complete"); in afs_wait_for_call_to_complete()
650 afs_put_call(call); in afs_wait_for_call_to_complete()
656 * wake up a waiting call
661 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_call_waiter() local
663 call->need_attention = true; in afs_wake_up_call_waiter()
664 wake_up(&call->waitq); in afs_wake_up_call_waiter()
668 * wake up an asynchronous call
673 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_async_call() local
676 trace_afs_notify_call(rxcall, call); in afs_wake_up_async_call()
677 call->need_attention = true; in afs_wake_up_async_call()
679 if (__refcount_inc_not_zero(&call->ref, &r)) { in afs_wake_up_async_call()
680 trace_afs_call(call->debug_id, afs_call_trace_wake, r + 1, in afs_wake_up_async_call()
681 atomic_read(&call->net->nr_outstanding_calls), in afs_wake_up_async_call()
684 if (!queue_work(afs_async_calls, &call->async_work)) in afs_wake_up_async_call()
685 afs_put_call(call); in afs_wake_up_async_call()
690 * Perform I/O processing on an asynchronous call. The work item carries a ref
691 * to the call struct that we either need to release or to pass on.
695 struct afs_call *call = container_of(work, struct afs_call, async_work); in afs_process_async_call() local
699 if (call->state < AFS_CALL_COMPLETE && call->need_attention) { in afs_process_async_call()
700 call->need_attention = false; in afs_process_async_call()
701 afs_deliver_to_call(call); in afs_process_async_call()
704 afs_put_call(call); in afs_process_async_call()
710 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_attach() local
712 call->rxcall = rxcall; in afs_rx_attach()
716 * Charge the incoming call preallocation.
722 struct afs_call *call = net->spare_incoming_call; in afs_charge_preallocation() local
725 if (!call) { in afs_charge_preallocation()
726 call = afs_alloc_call(net, &afs_RXCMxxxx, GFP_KERNEL); in afs_charge_preallocation()
727 if (!call) in afs_charge_preallocation()
730 call->drop_ref = true; in afs_charge_preallocation()
731 call->async = true; in afs_charge_preallocation()
732 call->state = AFS_CALL_SV_AWAIT_OP_ID; in afs_charge_preallocation()
733 init_waitqueue_head(&call->waitq); in afs_charge_preallocation()
734 afs_extract_to_tmp(call); in afs_charge_preallocation()
740 (unsigned long)call, in afs_charge_preallocation()
742 call->debug_id) < 0) in afs_charge_preallocation()
744 call = NULL; in afs_charge_preallocation()
746 net->spare_incoming_call = call; in afs_charge_preallocation()
750 * Discard a preallocated call when a socket is shut down.
755 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_discard_new_call() local
757 call->rxcall = NULL; in afs_rx_discard_new_call()
758 afs_put_call(call); in afs_rx_discard_new_call()
762 * Notification of an incoming call.
773 * Grab the operation ID from an incoming cache manager call. The socket
776 static int afs_deliver_cm_op_id(struct afs_call *call) in afs_deliver_cm_op_id() argument
780 _enter("{%zu}", iov_iter_count(call->iter)); in afs_deliver_cm_op_id()
783 ret = afs_extract_data(call, true); in afs_deliver_cm_op_id()
787 call->operation_ID = ntohl(call->tmp); in afs_deliver_cm_op_id()
788 afs_set_call_state(call, AFS_CALL_SV_AWAIT_OP_ID, AFS_CALL_SV_AWAIT_REQUEST); in afs_deliver_cm_op_id()
790 /* ask the cache manager to route the call (it'll change the call type in afs_deliver_cm_op_id()
792 if (!afs_cm_incoming_call(call)) in afs_deliver_cm_op_id()
795 trace_afs_cb_call(call); in afs_deliver_cm_op_id()
799 return call->type->deliver(call); in afs_deliver_cm_op_id()
803 * Advance the AFS call state when an RxRPC service call ends the transmit
810 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_reply_tx() local
812 afs_set_call_state(call, AFS_CALL_SV_REPLYING, AFS_CALL_SV_AWAIT_ACK); in afs_notify_end_reply_tx()
818 void afs_send_empty_reply(struct afs_call *call) in afs_send_empty_reply() argument
820 struct afs_net *net = call->net; in afs_send_empty_reply()
825 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, 0); in afs_send_empty_reply()
834 switch (rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, 0, in afs_send_empty_reply()
842 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_empty_reply()
855 void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len) in afs_send_simple_reply() argument
857 struct afs_net *net = call->net; in afs_send_simple_reply()
864 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, len); in afs_send_simple_reply()
875 n = rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, len, in afs_send_simple_reply()
885 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_simple_reply()
895 int afs_extract_data(struct afs_call *call, bool want_more) in afs_extract_data() argument
897 struct afs_net *net = call->net; in afs_extract_data()
898 struct iov_iter *iter = call->iter; in afs_extract_data()
904 call->type->name, call->iov_len, iov_iter_count(iter), want_more); in afs_extract_data()
906 ret = rxrpc_kernel_recv_data(net->socket, call->rxcall, iter, in afs_extract_data()
907 &call->iov_len, want_more, &remote_abort, in afs_extract_data()
908 &call->service_id); in afs_extract_data()
909 trace_afs_receive_data(call, call->iter, want_more, ret); in afs_extract_data()
913 state = READ_ONCE(call->state); in afs_extract_data()
917 afs_set_call_state(call, state, AFS_CALL_CL_PROC_REPLY); in afs_extract_data()
920 afs_set_call_state(call, state, AFS_CALL_SV_REPLYING); in afs_extract_data()
923 kdebug("prem complete %d", call->error); in afs_extract_data()
924 return afs_io_error(call, afs_io_error_extract); in afs_extract_data()
931 afs_set_call_complete(call, ret, remote_abort); in afs_extract_data()
938 noinline int afs_protocol_error(struct afs_call *call, in afs_protocol_error() argument
941 trace_afs_protocol_error(call, cause); in afs_protocol_error()
942 if (call) in afs_protocol_error()
943 call->unmarshalling_error = true; in afs_protocol_error()