1 /* Maintain an RxRPC server socket to do AFS communications through
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
12 #include <linux/slab.h>
13 #include <linux/sched/signal.h>
16 #include <net/af_rxrpc.h>
20 struct workqueue_struct
*afs_async_calls
;
22 static void afs_wake_up_call_waiter(struct sock
*, struct rxrpc_call
*, unsigned long);
23 static long afs_wait_for_call_to_complete(struct afs_call
*, struct afs_addr_cursor
*);
24 static void afs_wake_up_async_call(struct sock
*, struct rxrpc_call
*, unsigned long);
25 static void afs_process_async_call(struct work_struct
*);
26 static void afs_rx_new_call(struct sock
*, struct rxrpc_call
*, unsigned long);
27 static void afs_rx_discard_new_call(struct rxrpc_call
*, unsigned long);
28 static int afs_deliver_cm_op_id(struct afs_call
*);
30 /* asynchronous incoming call initial processing */
31 static const struct afs_call_type afs_RXCMxxxx
= {
33 .deliver
= afs_deliver_cm_op_id
,
37 * open an RxRPC socket and bind it to be a server for callback notifications
38 * - the socket is left in blocking mode and non-blocking ops use MSG_DONTWAIT
40 int afs_open_socket(struct afs_net
*net
)
42 struct sockaddr_rxrpc srx
;
43 struct socket
*socket
;
44 unsigned int min_level
;
49 ret
= sock_create_kern(&init_net
, AF_RXRPC
, SOCK_DGRAM
, PF_INET6
, &socket
);
53 socket
->sk
->sk_allocation
= GFP_NOFS
;
55 /* bind the callback manager's address to make this a server socket */
56 memset(&srx
, 0, sizeof(srx
));
57 srx
.srx_family
= AF_RXRPC
;
58 srx
.srx_service
= CM_SERVICE
;
59 srx
.transport_type
= SOCK_DGRAM
;
60 srx
.transport_len
= sizeof(srx
.transport
.sin6
);
61 srx
.transport
.sin6
.sin6_family
= AF_INET6
;
62 srx
.transport
.sin6
.sin6_port
= htons(AFS_CM_PORT
);
64 min_level
= RXRPC_SECURITY_ENCRYPT
;
65 ret
= kernel_setsockopt(socket
, SOL_RXRPC
, RXRPC_MIN_SECURITY_LEVEL
,
66 (void *)&min_level
, sizeof(min_level
));
70 ret
= kernel_bind(socket
, (struct sockaddr
*) &srx
, sizeof(srx
));
71 if (ret
== -EADDRINUSE
) {
72 srx
.transport
.sin6
.sin6_port
= 0;
73 ret
= kernel_bind(socket
, (struct sockaddr
*) &srx
, sizeof(srx
));
78 rxrpc_kernel_new_call_notification(socket
, afs_rx_new_call
,
79 afs_rx_discard_new_call
);
81 ret
= kernel_listen(socket
, INT_MAX
);
86 afs_charge_preallocation(&net
->charge_preallocation_work
);
98 * close the RxRPC socket AFS was using
100 void afs_close_socket(struct afs_net
*net
)
104 kernel_listen(net
->socket
, 0);
105 flush_workqueue(afs_async_calls
);
107 if (net
->spare_incoming_call
) {
108 afs_put_call(net
->spare_incoming_call
);
109 net
->spare_incoming_call
= NULL
;
112 _debug("outstanding %u", atomic_read(&net
->nr_outstanding_calls
));
113 wait_on_atomic_t(&net
->nr_outstanding_calls
, atomic_t_wait
,
114 TASK_UNINTERRUPTIBLE
);
115 _debug("no outstanding calls");
117 kernel_sock_shutdown(net
->socket
, SHUT_RDWR
);
118 flush_workqueue(afs_async_calls
);
119 sock_release(net
->socket
);
128 static struct afs_call
*afs_alloc_call(struct afs_net
*net
,
129 const struct afs_call_type
*type
,
132 struct afs_call
*call
;
135 call
= kzalloc(sizeof(*call
), gfp
);
141 atomic_set(&call
->usage
, 1);
142 INIT_WORK(&call
->async_work
, afs_process_async_call
);
143 init_waitqueue_head(&call
->waitq
);
144 spin_lock_init(&call
->state_lock
);
146 o
= atomic_inc_return(&net
->nr_outstanding_calls
);
147 trace_afs_call(call
, afs_call_trace_alloc
, 1, o
,
148 __builtin_return_address(0));
153 * Dispose of a reference on a call.
155 void afs_put_call(struct afs_call
*call
)
157 struct afs_net
*net
= call
->net
;
158 int n
= atomic_dec_return(&call
->usage
);
159 int o
= atomic_read(&net
->nr_outstanding_calls
);
161 trace_afs_call(call
, afs_call_trace_put
, n
+ 1, o
,
162 __builtin_return_address(0));
166 ASSERT(!work_pending(&call
->async_work
));
167 ASSERT(call
->type
->name
!= NULL
);
170 rxrpc_kernel_end_call(net
->socket
, call
->rxcall
);
173 if (call
->type
->destructor
)
174 call
->type
->destructor(call
);
176 afs_put_server(call
->net
, call
->cm_server
);
177 afs_put_cb_interest(call
->net
, call
->cbi
);
178 kfree(call
->request
);
181 o
= atomic_dec_return(&net
->nr_outstanding_calls
);
182 trace_afs_call(call
, afs_call_trace_free
, 0, o
,
183 __builtin_return_address(0));
185 wake_up_atomic_t(&net
->nr_outstanding_calls
);
190 * Queue the call for actual work. Returns 0 unconditionally for convenience.
192 int afs_queue_call_work(struct afs_call
*call
)
194 int u
= atomic_inc_return(&call
->usage
);
196 trace_afs_call(call
, afs_call_trace_work
, u
,
197 atomic_read(&call
->net
->nr_outstanding_calls
),
198 __builtin_return_address(0));
200 INIT_WORK(&call
->work
, call
->type
->work
);
202 if (!queue_work(afs_wq
, &call
->work
))
208 * allocate a call with flat request and reply buffers
210 struct afs_call
*afs_alloc_flat_call(struct afs_net
*net
,
211 const struct afs_call_type
*type
,
212 size_t request_size
, size_t reply_max
)
214 struct afs_call
*call
;
216 call
= afs_alloc_call(net
, type
, GFP_NOFS
);
221 call
->request_size
= request_size
;
222 call
->request
= kmalloc(request_size
, GFP_NOFS
);
228 call
->reply_max
= reply_max
;
229 call
->buffer
= kmalloc(reply_max
, GFP_NOFS
);
234 call
->operation_ID
= type
->op
;
235 init_waitqueue_head(&call
->waitq
);
245 * clean up a call with flat buffer
247 void afs_flat_call_destructor(struct afs_call
*call
)
251 kfree(call
->request
);
252 call
->request
= NULL
;
257 #define AFS_BVEC_MAX 8
260 * Load the given bvec with the next few pages.
262 static void afs_load_bvec(struct afs_call
*call
, struct msghdr
*msg
,
263 struct bio_vec
*bv
, pgoff_t first
, pgoff_t last
,
266 struct page
*pages
[AFS_BVEC_MAX
];
267 unsigned int nr
, n
, i
, to
, bytes
= 0;
269 nr
= min_t(pgoff_t
, last
- first
+ 1, AFS_BVEC_MAX
);
270 n
= find_get_pages_contig(call
->mapping
, first
, nr
, pages
);
271 ASSERTCMP(n
, ==, nr
);
273 msg
->msg_flags
|= MSG_MORE
;
274 for (i
= 0; i
< nr
; i
++) {
276 if (first
+ i
>= last
) {
278 msg
->msg_flags
&= ~MSG_MORE
;
280 bv
[i
].bv_page
= pages
[i
];
281 bv
[i
].bv_len
= to
- offset
;
282 bv
[i
].bv_offset
= offset
;
283 bytes
+= to
- offset
;
287 iov_iter_bvec(&msg
->msg_iter
, WRITE
| ITER_BVEC
, bv
, nr
, bytes
);
291 * Advance the AFS call state when the RxRPC call ends the transmit phase.
293 static void afs_notify_end_request_tx(struct sock
*sock
,
294 struct rxrpc_call
*rxcall
,
295 unsigned long call_user_ID
)
297 struct afs_call
*call
= (struct afs_call
*)call_user_ID
;
299 afs_set_call_state(call
, AFS_CALL_CL_REQUESTING
, AFS_CALL_CL_AWAIT_REPLY
);
303 * attach the data from a bunch of pages on an inode to a call
305 static int afs_send_pages(struct afs_call
*call
, struct msghdr
*msg
)
307 struct bio_vec bv
[AFS_BVEC_MAX
];
308 unsigned int bytes
, nr
, loop
, offset
;
309 pgoff_t first
= call
->first
, last
= call
->last
;
312 offset
= call
->first_offset
;
313 call
->first_offset
= 0;
316 afs_load_bvec(call
, msg
, bv
, first
, last
, offset
);
317 trace_afs_send_pages(call
, msg
, first
, last
, offset
);
320 bytes
= msg
->msg_iter
.count
;
321 nr
= msg
->msg_iter
.nr_segs
;
323 ret
= rxrpc_kernel_send_data(call
->net
->socket
, call
->rxcall
, msg
,
324 bytes
, afs_notify_end_request_tx
);
325 for (loop
= 0; loop
< nr
; loop
++)
326 put_page(bv
[loop
].bv_page
);
331 } while (first
<= last
);
333 trace_afs_sent_pages(call
, call
->first
, last
, first
, ret
);
340 long afs_make_call(struct afs_addr_cursor
*ac
, struct afs_call
*call
,
341 gfp_t gfp
, bool async
)
343 struct sockaddr_rxrpc
*srx
= ac
->addr
;
344 struct rxrpc_call
*rxcall
;
351 _enter(",{%pISp},", &srx
->transport
);
353 ASSERT(call
->type
!= NULL
);
354 ASSERT(call
->type
->name
!= NULL
);
356 _debug("____MAKE %p{%s,%x} [%d]____",
357 call
, call
->type
->name
, key_serial(call
->key
),
358 atomic_read(&call
->net
->nr_outstanding_calls
));
362 /* Work out the length we're going to transmit. This is awkward for
363 * calls such as FS.StoreData where there's an extra injection of data
364 * after the initial fixed part.
366 tx_total_len
= call
->request_size
;
367 if (call
->send_pages
) {
368 if (call
->last
== call
->first
) {
369 tx_total_len
+= call
->last_to
- call
->first_offset
;
371 /* It looks mathematically like you should be able to
372 * combine the following lines with the ones above, but
373 * unsigned arithmetic is fun when it wraps...
375 tx_total_len
+= PAGE_SIZE
- call
->first_offset
;
376 tx_total_len
+= call
->last_to
;
377 tx_total_len
+= (call
->last
- call
->first
- 1) * PAGE_SIZE
;
382 rxcall
= rxrpc_kernel_begin_call(call
->net
->socket
, srx
, call
->key
,
386 afs_wake_up_async_call
:
387 afs_wake_up_call_waiter
),
389 if (IS_ERR(rxcall
)) {
390 ret
= PTR_ERR(rxcall
);
391 goto error_kill_call
;
394 call
->rxcall
= rxcall
;
396 /* send the request */
397 iov
[0].iov_base
= call
->request
;
398 iov
[0].iov_len
= call
->request_size
;
402 iov_iter_kvec(&msg
.msg_iter
, WRITE
| ITER_KVEC
, iov
, 1,
404 msg
.msg_control
= NULL
;
405 msg
.msg_controllen
= 0;
406 msg
.msg_flags
= MSG_WAITALL
| (call
->send_pages
? MSG_MORE
: 0);
408 ret
= rxrpc_kernel_send_data(call
->net
->socket
, rxcall
,
409 &msg
, call
->request_size
,
410 afs_notify_end_request_tx
);
414 if (call
->send_pages
) {
415 ret
= afs_send_pages(call
, &msg
);
420 /* at this point, an async call may no longer exist as it may have
421 * already completed */
425 return afs_wait_for_call_to_complete(call
, ac
);
428 call
->state
= AFS_CALL_COMPLETE
;
429 if (ret
!= -ECONNABORTED
) {
430 rxrpc_kernel_abort_call(call
->net
->socket
, rxcall
,
431 RX_USER_ABORT
, ret
, "KSD");
434 rxrpc_kernel_recv_data(call
->net
->socket
, rxcall
, NULL
,
435 0, &offset
, false, &call
->abort_code
,
437 ac
->abort_code
= call
->abort_code
;
438 ac
->responded
= true;
441 trace_afs_call_done(call
);
445 _leave(" = %d", ret
);
450 * deliver messages to a call
452 static void afs_deliver_to_call(struct afs_call
*call
)
454 enum afs_call_state state
;
455 u32 abort_code
, remote_abort
= 0;
458 _enter("%s", call
->type
->name
);
460 while (state
= READ_ONCE(call
->state
),
461 state
== AFS_CALL_CL_AWAIT_REPLY
||
462 state
== AFS_CALL_SV_AWAIT_OP_ID
||
463 state
== AFS_CALL_SV_AWAIT_REQUEST
||
464 state
== AFS_CALL_SV_AWAIT_ACK
466 if (state
== AFS_CALL_SV_AWAIT_ACK
) {
468 ret
= rxrpc_kernel_recv_data(call
->net
->socket
,
470 NULL
, 0, &offset
, false,
473 trace_afs_recv_data(call
, 0, offset
, false, ret
);
475 if (ret
== -EINPROGRESS
|| ret
== -EAGAIN
)
477 if (ret
< 0 || ret
== 1) {
485 ret
= call
->type
->deliver(call
);
486 state
= READ_ONCE(call
->state
);
489 if (state
== AFS_CALL_CL_PROC_REPLY
)
491 ASSERTCMP(state
, >, AFS_CALL_CL_PROC_REPLY
);
498 ASSERTCMP(state
, ==, AFS_CALL_COMPLETE
);
501 abort_code
= RX_CALL_DEAD
;
502 rxrpc_kernel_abort_call(call
->net
->socket
, call
->rxcall
,
503 abort_code
, ret
, "KNC");
506 abort_code
= RXGEN_OPCODE
;
507 rxrpc_kernel_abort_call(call
->net
->socket
, call
->rxcall
,
508 abort_code
, ret
, "KIV");
514 abort_code
= RXGEN_CC_UNMARSHAL
;
515 if (state
!= AFS_CALL_CL_AWAIT_REPLY
)
516 abort_code
= RXGEN_SS_UNMARSHAL
;
517 rxrpc_kernel_abort_call(call
->net
->socket
, call
->rxcall
,
518 abort_code
, -EBADMSG
, "KUM");
524 if (state
== AFS_CALL_COMPLETE
&& call
->incoming
)
533 afs_set_call_complete(call
, ret
, remote_abort
);
534 state
= AFS_CALL_COMPLETE
;
539 * wait synchronously for a call to complete
541 static long afs_wait_for_call_to_complete(struct afs_call
*call
,
542 struct afs_addr_cursor
*ac
)
544 signed long rtt2
, timeout
;
549 DECLARE_WAITQUEUE(myself
, current
);
553 rtt
= rxrpc_kernel_get_rtt(call
->net
->socket
, call
->rxcall
);
554 rtt2
= nsecs_to_jiffies64(rtt
) * 2;
559 last_life
= rxrpc_kernel_check_life(call
->net
->socket
, call
->rxcall
);
561 add_wait_queue(&call
->waitq
, &myself
);
563 set_current_state(TASK_UNINTERRUPTIBLE
);
565 /* deliver any messages that are in the queue */
566 if (!afs_check_call_state(call
, AFS_CALL_COMPLETE
) &&
567 call
->need_attention
) {
568 call
->need_attention
= false;
569 __set_current_state(TASK_RUNNING
);
570 afs_deliver_to_call(call
);
574 if (afs_check_call_state(call
, AFS_CALL_COMPLETE
))
577 life
= rxrpc_kernel_check_life(call
->net
->socket
, call
->rxcall
);
579 life
== last_life
&& signal_pending(current
))
582 if (life
!= last_life
) {
587 timeout
= schedule_timeout(timeout
);
590 remove_wait_queue(&call
->waitq
, &myself
);
591 __set_current_state(TASK_RUNNING
);
593 /* Kill off the call if it's still live. */
594 if (!afs_check_call_state(call
, AFS_CALL_COMPLETE
)) {
595 _debug("call interrupted");
596 if (rxrpc_kernel_abort_call(call
->net
->socket
, call
->rxcall
,
597 RX_USER_ABORT
, -EINTR
, "KWI"))
598 afs_set_call_complete(call
, -EINTR
, 0);
601 spin_lock_bh(&call
->state_lock
);
602 ac
->abort_code
= call
->abort_code
;
603 ac
->error
= call
->error
;
604 spin_unlock_bh(&call
->state_lock
);
609 if (call
->ret_reply0
) {
610 ret
= (long)call
->reply
[0];
611 call
->reply
[0] = NULL
;
615 ac
->responded
= true;
619 _debug("call complete");
621 _leave(" = %p", (void *)ret
);
626 * wake up a waiting call
628 static void afs_wake_up_call_waiter(struct sock
*sk
, struct rxrpc_call
*rxcall
,
629 unsigned long call_user_ID
)
631 struct afs_call
*call
= (struct afs_call
*)call_user_ID
;
633 call
->need_attention
= true;
634 wake_up(&call
->waitq
);
638 * wake up an asynchronous call
640 static void afs_wake_up_async_call(struct sock
*sk
, struct rxrpc_call
*rxcall
,
641 unsigned long call_user_ID
)
643 struct afs_call
*call
= (struct afs_call
*)call_user_ID
;
646 trace_afs_notify_call(rxcall
, call
);
647 call
->need_attention
= true;
649 u
= __atomic_add_unless(&call
->usage
, 1, 0);
651 trace_afs_call(call
, afs_call_trace_wake
, u
,
652 atomic_read(&call
->net
->nr_outstanding_calls
),
653 __builtin_return_address(0));
655 if (!queue_work(afs_async_calls
, &call
->async_work
))
661 * Delete an asynchronous call. The work item carries a ref to the call struct
662 * that we need to release.
664 static void afs_delete_async_call(struct work_struct
*work
)
666 struct afs_call
*call
= container_of(work
, struct afs_call
, async_work
);
676 * Perform I/O processing on an asynchronous call. The work item carries a ref
677 * to the call struct that we either need to release or to pass on.
679 static void afs_process_async_call(struct work_struct
*work
)
681 struct afs_call
*call
= container_of(work
, struct afs_call
, async_work
);
685 if (call
->state
< AFS_CALL_COMPLETE
&& call
->need_attention
) {
686 call
->need_attention
= false;
687 afs_deliver_to_call(call
);
690 if (call
->state
== AFS_CALL_COMPLETE
) {
691 call
->reply
[0] = NULL
;
693 /* We have two refs to release - one from the alloc and one
694 * queued with the work item - and we can't just deallocate the
695 * call because the work item may be queued again.
697 call
->async_work
.func
= afs_delete_async_call
;
698 if (!queue_work(afs_async_calls
, &call
->async_work
))
706 static void afs_rx_attach(struct rxrpc_call
*rxcall
, unsigned long user_call_ID
)
708 struct afs_call
*call
= (struct afs_call
*)user_call_ID
;
710 call
->rxcall
= rxcall
;
714 * Charge the incoming call preallocation.
716 void afs_charge_preallocation(struct work_struct
*work
)
718 struct afs_net
*net
=
719 container_of(work
, struct afs_net
, charge_preallocation_work
);
720 struct afs_call
*call
= net
->spare_incoming_call
;
724 call
= afs_alloc_call(net
, &afs_RXCMxxxx
, GFP_KERNEL
);
729 call
->state
= AFS_CALL_SV_AWAIT_OP_ID
;
730 init_waitqueue_head(&call
->waitq
);
733 if (rxrpc_kernel_charge_accept(net
->socket
,
734 afs_wake_up_async_call
,
741 net
->spare_incoming_call
= call
;
745 * Discard a preallocated call when a socket is shut down.
747 static void afs_rx_discard_new_call(struct rxrpc_call
*rxcall
,
748 unsigned long user_call_ID
)
750 struct afs_call
*call
= (struct afs_call
*)user_call_ID
;
757 * Notification of an incoming call.
759 static void afs_rx_new_call(struct sock
*sk
, struct rxrpc_call
*rxcall
,
760 unsigned long user_call_ID
)
762 struct afs_net
*net
= afs_sock2net(sk
);
764 queue_work(afs_wq
, &net
->charge_preallocation_work
);
768 * Grab the operation ID from an incoming cache manager call. The socket
769 * buffer is discarded on error or if we don't yet have sufficient data.
771 static int afs_deliver_cm_op_id(struct afs_call
*call
)
775 _enter("{%zu}", call
->offset
);
777 ASSERTCMP(call
->offset
, <, 4);
779 /* the operation ID forms the first four bytes of the request data */
780 ret
= afs_extract_data(call
, &call
->tmp
, 4, true);
784 call
->operation_ID
= ntohl(call
->tmp
);
785 afs_set_call_state(call
, AFS_CALL_SV_AWAIT_OP_ID
, AFS_CALL_SV_AWAIT_REQUEST
);
788 /* ask the cache manager to route the call (it'll change the call type
790 if (!afs_cm_incoming_call(call
))
793 trace_afs_cb_call(call
);
795 /* pass responsibility for the remainer of this message off to the
796 * cache manager op */
797 return call
->type
->deliver(call
);
801 * Advance the AFS call state when an RxRPC service call ends the transmit
804 static void afs_notify_end_reply_tx(struct sock
*sock
,
805 struct rxrpc_call
*rxcall
,
806 unsigned long call_user_ID
)
808 struct afs_call
*call
= (struct afs_call
*)call_user_ID
;
810 afs_set_call_state(call
, AFS_CALL_SV_REPLYING
, AFS_CALL_SV_AWAIT_ACK
);
814 * send an empty reply
816 void afs_send_empty_reply(struct afs_call
*call
)
818 struct afs_net
*net
= call
->net
;
823 rxrpc_kernel_set_tx_length(net
->socket
, call
->rxcall
, 0);
827 iov_iter_kvec(&msg
.msg_iter
, WRITE
| ITER_KVEC
, NULL
, 0, 0);
828 msg
.msg_control
= NULL
;
829 msg
.msg_controllen
= 0;
832 switch (rxrpc_kernel_send_data(net
->socket
, call
->rxcall
, &msg
, 0,
833 afs_notify_end_reply_tx
)) {
835 _leave(" [replied]");
840 rxrpc_kernel_abort_call(net
->socket
, call
->rxcall
,
841 RX_USER_ABORT
, -ENOMEM
, "KOO");
849 * send a simple reply
851 void afs_send_simple_reply(struct afs_call
*call
, const void *buf
, size_t len
)
853 struct afs_net
*net
= call
->net
;
860 rxrpc_kernel_set_tx_length(net
->socket
, call
->rxcall
, len
);
862 iov
[0].iov_base
= (void *) buf
;
863 iov
[0].iov_len
= len
;
866 iov_iter_kvec(&msg
.msg_iter
, WRITE
| ITER_KVEC
, iov
, 1, len
);
867 msg
.msg_control
= NULL
;
868 msg
.msg_controllen
= 0;
871 n
= rxrpc_kernel_send_data(net
->socket
, call
->rxcall
, &msg
, len
,
872 afs_notify_end_reply_tx
);
875 _leave(" [replied]");
881 rxrpc_kernel_abort_call(net
->socket
, call
->rxcall
,
882 RX_USER_ABORT
, -ENOMEM
, "KOO");
888 * Extract a piece of data from the received data socket buffers.
890 int afs_extract_data(struct afs_call
*call
, void *buf
, size_t count
,
893 struct afs_net
*net
= call
->net
;
894 enum afs_call_state state
;
895 u32 remote_abort
= 0;
898 _enter("{%s,%zu},,%zu,%d",
899 call
->type
->name
, call
->offset
, count
, want_more
);
901 ASSERTCMP(call
->offset
, <=, count
);
903 ret
= rxrpc_kernel_recv_data(net
->socket
, call
->rxcall
,
904 buf
, count
, &call
->offset
,
905 want_more
, &remote_abort
,
907 trace_afs_recv_data(call
, count
, call
->offset
, want_more
, ret
);
908 if (ret
== 0 || ret
== -EAGAIN
)
911 state
= READ_ONCE(call
->state
);
914 case AFS_CALL_CL_AWAIT_REPLY
:
915 afs_set_call_state(call
, state
, AFS_CALL_CL_PROC_REPLY
);
917 case AFS_CALL_SV_AWAIT_REQUEST
:
918 afs_set_call_state(call
, state
, AFS_CALL_SV_REPLYING
);
920 case AFS_CALL_COMPLETE
:
921 kdebug("prem complete %d", call
->error
);
929 afs_set_call_complete(call
, ret
, remote_abort
);