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 refcount_set(&call->ref, 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->debug_id, 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 unsigned int debug_id = call->debug_id; in afs_put_call()
170 zero = __refcount_dec_and_test(&call->ref, &r); in afs_put_call()
176 ASSERT(!work_pending(&call->async_work)); in afs_put_call()
177 ASSERT(call->type->name != NULL); in afs_put_call()
179 if (call->rxcall) { in afs_put_call()
180 rxrpc_kernel_end_call(net->socket, call->rxcall); in afs_put_call()
181 call->rxcall = NULL; in afs_put_call()
183 if (call->type->destructor) in afs_put_call()
184 call->type->destructor(call); in afs_put_call()
186 afs_unuse_server_notime(call->net, call->server, afs_server_trace_put_call); in afs_put_call()
187 afs_put_addrlist(call->alist); in afs_put_call()
188 kfree(call->request); in afs_put_call()
190 trace_afs_call(call->debug_id, afs_call_trace_free, 0, o, in afs_put_call()
192 kfree(call); in afs_put_call()
200 static struct afs_call *afs_get_call(struct afs_call *call, in afs_get_call() argument
205 __refcount_inc(&call->ref, &r); in afs_get_call()
207 trace_afs_call(call->debug_id, why, r + 1, in afs_get_call()
208 atomic_read(&call->net->nr_outstanding_calls), in afs_get_call()
210 return call; in afs_get_call()
214 * Queue the call for actual work.
216 static void afs_queue_call_work(struct afs_call *call) in afs_queue_call_work() argument
218 if (call->type->work) { in afs_queue_call_work()
219 INIT_WORK(&call->work, call->type->work); in afs_queue_call_work()
221 afs_get_call(call, afs_call_trace_work); in afs_queue_call_work()
222 if (!queue_work(afs_wq, &call->work)) in afs_queue_call_work()
223 afs_put_call(call); in afs_queue_call_work()
228 * allocate a call with flat request and reply buffers
234 struct afs_call *call; in afs_alloc_flat_call() local
236 call = afs_alloc_call(net, type, GFP_NOFS); in afs_alloc_flat_call()
237 if (!call) in afs_alloc_flat_call()
241 call->request_size = request_size; in afs_alloc_flat_call()
242 call->request = kmalloc(request_size, GFP_NOFS); in afs_alloc_flat_call()
243 if (!call->request) in afs_alloc_flat_call()
248 call->reply_max = reply_max; in afs_alloc_flat_call()
249 call->buffer = kmalloc(reply_max, GFP_NOFS); in afs_alloc_flat_call()
250 if (!call->buffer) in afs_alloc_flat_call()
254 afs_extract_to_buf(call, call->reply_max); in afs_alloc_flat_call()
255 call->operation_ID = type->op; in afs_alloc_flat_call()
256 init_waitqueue_head(&call->waitq); in afs_alloc_flat_call()
257 return call; in afs_alloc_flat_call()
260 afs_put_call(call); in afs_alloc_flat_call()
266 * clean up a call with flat buffer
268 void afs_flat_call_destructor(struct afs_call *call) in afs_flat_call_destructor() argument
272 kfree(call->request); in afs_flat_call_destructor()
273 call->request = NULL; in afs_flat_call_destructor()
274 kfree(call->buffer); in afs_flat_call_destructor()
275 call->buffer = NULL; in afs_flat_call_destructor()
279 * Advance the AFS call state when the RxRPC call ends the transmit phase.
285 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_request_tx() local
287 afs_set_call_state(call, AFS_CALL_CL_REQUESTING, AFS_CALL_CL_AWAIT_REPLY); in afs_notify_end_request_tx()
291 * Initiate a call and synchronously queue up the parameters for dispatch. Any
292 * error is stored into the call struct, which the caller must check for.
294 void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) in afs_make_call() argument
306 ASSERT(call->type != NULL); in afs_make_call()
307 ASSERT(call->type->name != NULL); in afs_make_call()
310 call, call->type->name, key_serial(call->key), in afs_make_call()
311 atomic_read(&call->net->nr_outstanding_calls)); in afs_make_call()
313 call->addr_ix = ac->index; in afs_make_call()
314 call->alist = afs_get_addrlist(ac->alist); in afs_make_call()
320 tx_total_len = call->request_size; in afs_make_call()
321 if (call->write_iter) in afs_make_call()
322 tx_total_len += iov_iter_count(call->write_iter); in afs_make_call()
324 /* If the call is going to be asynchronous, we need an extra ref for in afs_make_call()
325 * the call to hold itself so the caller need not hang on to its ref. in afs_make_call()
327 if (call->async) { in afs_make_call()
328 afs_get_call(call, afs_call_trace_get); in afs_make_call()
329 call->drop_ref = true; in afs_make_call()
332 /* create a call */ in afs_make_call()
333 rxcall = rxrpc_kernel_begin_call(call->net->socket, srx, call->key, in afs_make_call()
334 (unsigned long)call, in afs_make_call()
336 (call->async ? in afs_make_call()
339 call->upgrade, in afs_make_call()
340 (call->intr ? RXRPC_PREINTERRUPTIBLE : in afs_make_call()
342 call->debug_id); in afs_make_call()
345 call->error = ret; in afs_make_call()
349 call->rxcall = rxcall; in afs_make_call()
351 if (call->max_lifespan) in afs_make_call()
352 rxrpc_kernel_set_max_life(call->net->socket, rxcall, in afs_make_call()
353 call->max_lifespan); in afs_make_call()
354 call->issue_time = ktime_get_real(); in afs_make_call()
357 iov[0].iov_base = call->request; in afs_make_call()
358 iov[0].iov_len = call->request_size; in afs_make_call()
362 iov_iter_kvec(&msg.msg_iter, WRITE, iov, 1, call->request_size); in afs_make_call()
365 msg.msg_flags = MSG_WAITALL | (call->write_iter ? MSG_MORE : 0); in afs_make_call()
367 ret = rxrpc_kernel_send_data(call->net->socket, rxcall, in afs_make_call()
368 &msg, call->request_size, in afs_make_call()
373 if (call->write_iter) { in afs_make_call()
374 msg.msg_iter = *call->write_iter; in afs_make_call()
376 trace_afs_send_data(call, &msg); in afs_make_call()
378 ret = rxrpc_kernel_send_data(call->net->socket, in afs_make_call()
379 call->rxcall, &msg, in afs_make_call()
382 *call->write_iter = msg.msg_iter; in afs_make_call()
384 trace_afs_sent_data(call, &msg, ret); in afs_make_call()
390 * - and an asynchronous call may already have completed. in afs_make_call()
392 * afs_wait_for_call_to_complete(call, ac) in afs_make_call()
399 rxrpc_kernel_abort_call(call->net->socket, rxcall, in afs_make_call()
404 rxrpc_kernel_recv_data(call->net->socket, rxcall, in afs_make_call()
406 &call->abort_code, &call->service_id); in afs_make_call()
407 ac->abort_code = call->abort_code; in afs_make_call()
410 call->error = ret; in afs_make_call()
411 trace_afs_call_done(call); in afs_make_call()
413 if (call->type->done) in afs_make_call()
414 call->type->done(call); in afs_make_call()
416 /* We need to dispose of the extra ref we grabbed for an async call. in afs_make_call()
417 * The call, however, might be queued on afs_async_calls and we need to in afs_make_call()
420 if (call->rxcall) { in afs_make_call()
421 rxrpc_kernel_end_call(call->net->socket, call->rxcall); in afs_make_call()
422 call->rxcall = NULL; 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_put_call(call); 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, READ, 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()
533 pr_err("kAFS: Call %u in bad state %u\n", in afs_deliver_to_call()
534 call->debug_id, state); in afs_deliver_to_call()
544 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
549 rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_deliver_to_call()
556 if (call->type->done) in afs_deliver_to_call()
557 call->type->done(call); in afs_deliver_to_call()
565 afs_set_call_complete(call, ret, remote_abort); in afs_deliver_to_call()
571 * Wait synchronously for a call to complete and clean up the call struct.
573 long afs_wait_for_call_to_complete(struct afs_call *call, in afs_wait_for_call_to_complete() argument
583 ret = call->error; in afs_wait_for_call_to_complete()
587 add_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
592 if (!afs_check_call_state(call, AFS_CALL_COMPLETE) && in afs_wait_for_call_to_complete()
593 call->need_attention) { in afs_wait_for_call_to_complete()
594 call->need_attention = false; in afs_wait_for_call_to_complete()
596 afs_deliver_to_call(call); in afs_wait_for_call_to_complete()
600 if (afs_check_call_state(call, AFS_CALL_COMPLETE)) in afs_wait_for_call_to_complete()
603 if (!rxrpc_kernel_check_life(call->net->socket, call->rxcall)) { in afs_wait_for_call_to_complete()
604 /* rxrpc terminated the call. */ in afs_wait_for_call_to_complete()
612 remove_wait_queue(&call->waitq, &myself); in afs_wait_for_call_to_complete()
615 if (!afs_check_call_state(call, AFS_CALL_COMPLETE)) { in afs_wait_for_call_to_complete()
617 afs_set_call_complete(call, call->error, call->abort_code); in afs_wait_for_call_to_complete()
619 /* Kill off the call if it's still live. */ in afs_wait_for_call_to_complete()
620 _debug("call interrupted"); in afs_wait_for_call_to_complete()
621 if (rxrpc_kernel_abort_call(call->net->socket, call->rxcall, in afs_wait_for_call_to_complete()
623 afs_set_call_complete(call, -EINTR, 0); in afs_wait_for_call_to_complete()
627 spin_lock_bh(&call->state_lock); in afs_wait_for_call_to_complete()
628 ac->abort_code = call->abort_code; in afs_wait_for_call_to_complete()
629 ac->error = call->error; in afs_wait_for_call_to_complete()
630 spin_unlock_bh(&call->state_lock); in afs_wait_for_call_to_complete()
635 ret = call->ret0; in afs_wait_for_call_to_complete()
636 call->ret0 = 0; in afs_wait_for_call_to_complete()
645 _debug("call complete"); in afs_wait_for_call_to_complete()
646 afs_put_call(call); in afs_wait_for_call_to_complete()
652 * wake up a waiting call
657 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_call_waiter() local
659 call->need_attention = true; in afs_wake_up_call_waiter()
660 wake_up(&call->waitq); in afs_wake_up_call_waiter()
664 * wake up an asynchronous call
669 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_wake_up_async_call() local
672 trace_afs_notify_call(rxcall, call); in afs_wake_up_async_call()
673 call->need_attention = true; in afs_wake_up_async_call()
675 if (__refcount_inc_not_zero(&call->ref, &r)) { in afs_wake_up_async_call()
676 trace_afs_call(call->debug_id, afs_call_trace_wake, r + 1, in afs_wake_up_async_call()
677 atomic_read(&call->net->nr_outstanding_calls), in afs_wake_up_async_call()
680 if (!queue_work(afs_async_calls, &call->async_work)) in afs_wake_up_async_call()
681 afs_put_call(call); in afs_wake_up_async_call()
686 * Perform I/O processing on an asynchronous call. The work item carries a ref
687 * to the call struct that we either need to release or to pass on.
691 struct afs_call *call = container_of(work, struct afs_call, async_work); in afs_process_async_call() local
695 if (call->state < AFS_CALL_COMPLETE && call->need_attention) { in afs_process_async_call()
696 call->need_attention = false; in afs_process_async_call()
697 afs_deliver_to_call(call); in afs_process_async_call()
700 afs_put_call(call); in afs_process_async_call()
706 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_attach() local
708 call->rxcall = rxcall; in afs_rx_attach()
712 * Charge the incoming call preallocation.
718 struct afs_call *call = net->spare_incoming_call; in afs_charge_preallocation() local
721 if (!call) { in afs_charge_preallocation()
722 call = afs_alloc_call(net, &afs_RXCMxxxx, GFP_KERNEL); in afs_charge_preallocation()
723 if (!call) in afs_charge_preallocation()
726 call->drop_ref = true; in afs_charge_preallocation()
727 call->async = true; in afs_charge_preallocation()
728 call->state = AFS_CALL_SV_AWAIT_OP_ID; in afs_charge_preallocation()
729 init_waitqueue_head(&call->waitq); in afs_charge_preallocation()
730 afs_extract_to_tmp(call); in afs_charge_preallocation()
736 (unsigned long)call, in afs_charge_preallocation()
738 call->debug_id) < 0) in afs_charge_preallocation()
740 call = NULL; in afs_charge_preallocation()
742 net->spare_incoming_call = call; in afs_charge_preallocation()
746 * Discard a preallocated call when a socket is shut down.
751 struct afs_call *call = (struct afs_call *)user_call_ID; in afs_rx_discard_new_call() local
753 call->rxcall = NULL; in afs_rx_discard_new_call()
754 afs_put_call(call); in afs_rx_discard_new_call()
758 * Notification of an incoming call.
769 * Grab the operation ID from an incoming cache manager call. The socket
772 static int afs_deliver_cm_op_id(struct afs_call *call) in afs_deliver_cm_op_id() argument
776 _enter("{%zu}", iov_iter_count(call->iter)); in afs_deliver_cm_op_id()
779 ret = afs_extract_data(call, true); in afs_deliver_cm_op_id()
783 call->operation_ID = ntohl(call->tmp); in afs_deliver_cm_op_id()
784 afs_set_call_state(call, AFS_CALL_SV_AWAIT_OP_ID, AFS_CALL_SV_AWAIT_REQUEST); in afs_deliver_cm_op_id()
786 /* ask the cache manager to route the call (it'll change the call type in afs_deliver_cm_op_id()
788 if (!afs_cm_incoming_call(call)) in afs_deliver_cm_op_id()
791 trace_afs_cb_call(call); in afs_deliver_cm_op_id()
795 return call->type->deliver(call); in afs_deliver_cm_op_id()
799 * Advance the AFS call state when an RxRPC service call ends the transmit
806 struct afs_call *call = (struct afs_call *)call_user_ID; in afs_notify_end_reply_tx() local
808 afs_set_call_state(call, AFS_CALL_SV_REPLYING, AFS_CALL_SV_AWAIT_ACK); in afs_notify_end_reply_tx()
814 void afs_send_empty_reply(struct afs_call *call) in afs_send_empty_reply() argument
816 struct afs_net *net = call->net; in afs_send_empty_reply()
821 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, 0); in afs_send_empty_reply()
830 switch (rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, 0, in afs_send_empty_reply()
838 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_empty_reply()
850 void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len) in afs_send_simple_reply() argument
852 struct afs_net *net = call->net; in afs_send_simple_reply()
859 rxrpc_kernel_set_tx_length(net->socket, call->rxcall, len); in afs_send_simple_reply()
870 n = rxrpc_kernel_send_data(net->socket, call->rxcall, &msg, len, in afs_send_simple_reply()
880 rxrpc_kernel_abort_call(net->socket, call->rxcall, in afs_send_simple_reply()
889 int afs_extract_data(struct afs_call *call, bool want_more) in afs_extract_data() argument
891 struct afs_net *net = call->net; in afs_extract_data()
892 struct iov_iter *iter = call->iter; in afs_extract_data()
898 call->type->name, call->iov_len, iov_iter_count(iter), want_more); in afs_extract_data()
900 ret = rxrpc_kernel_recv_data(net->socket, call->rxcall, iter, in afs_extract_data()
901 &call->iov_len, want_more, &remote_abort, in afs_extract_data()
902 &call->service_id); in afs_extract_data()
906 state = READ_ONCE(call->state); in afs_extract_data()
910 afs_set_call_state(call, state, AFS_CALL_CL_PROC_REPLY); in afs_extract_data()
913 afs_set_call_state(call, state, AFS_CALL_SV_REPLYING); in afs_extract_data()
916 kdebug("prem complete %d", call->error); in afs_extract_data()
917 return afs_io_error(call, afs_io_error_extract); in afs_extract_data()
924 afs_set_call_complete(call, ret, remote_abort); in afs_extract_data()
931 noinline int afs_protocol_error(struct afs_call *call, in afs_protocol_error() argument
934 trace_afs_protocol_error(call, cause); in afs_protocol_error()
935 if (call) in afs_protocol_error()
936 call->unmarshalling_error = true; in afs_protocol_error()