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-rw-r--r--fs/afs/rxrpc.c86
1 files changed, 43 insertions, 43 deletions
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index ef943df73b8c..03a3beb17004 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -25,7 +25,7 @@ static void afs_wake_up_call_waiter(struct afs_call *);
25static int afs_wait_for_call_to_complete(struct afs_call *); 25static int afs_wait_for_call_to_complete(struct afs_call *);
26static void afs_wake_up_async_call(struct afs_call *); 26static void afs_wake_up_async_call(struct afs_call *);
27static int afs_dont_wait_for_call_to_complete(struct afs_call *); 27static int afs_dont_wait_for_call_to_complete(struct afs_call *);
28static void afs_process_async_call(struct work_struct *); 28static void afs_process_async_call(struct afs_call *);
29static void afs_rx_interceptor(struct sock *, unsigned long, struct sk_buff *); 29static void afs_rx_interceptor(struct sock *, unsigned long, struct sk_buff *);
30static int afs_deliver_cm_op_id(struct afs_call *, struct sk_buff *, bool); 30static int afs_deliver_cm_op_id(struct afs_call *, struct sk_buff *, bool);
31 31
@@ -58,6 +58,13 @@ static void afs_collect_incoming_call(struct work_struct *);
58static struct sk_buff_head afs_incoming_calls; 58static struct sk_buff_head afs_incoming_calls;
59static DECLARE_WORK(afs_collect_incoming_call_work, afs_collect_incoming_call); 59static DECLARE_WORK(afs_collect_incoming_call_work, afs_collect_incoming_call);
60 60
61static void afs_async_workfn(struct work_struct *work)
62{
63 struct afs_call *call = container_of(work, struct afs_call, async_work);
64
65 call->async_workfn(call);
66}
67
61/* 68/*
62 * open an RxRPC socket and bind it to be a server for callback notifications 69 * open an RxRPC socket and bind it to be a server for callback notifications
63 * - the socket is left in blocking mode and non-blocking ops use MSG_DONTWAIT 70 * - the socket is left in blocking mode and non-blocking ops use MSG_DONTWAIT
@@ -184,6 +191,28 @@ static void afs_free_call(struct afs_call *call)
184} 191}
185 192
186/* 193/*
194 * End a call but do not free it
195 */
196static void afs_end_call_nofree(struct afs_call *call)
197{
198 if (call->rxcall) {
199 rxrpc_kernel_end_call(call->rxcall);
200 call->rxcall = NULL;
201 }
202 if (call->type->destructor)
203 call->type->destructor(call);
204}
205
206/*
207 * End a call and free it
208 */
209static void afs_end_call(struct afs_call *call)
210{
211 afs_end_call_nofree(call);
212 afs_free_call(call);
213}
214
215/*
187 * allocate a call with flat request and reply buffers 216 * allocate a call with flat request and reply buffers
188 */ 217 */
189struct afs_call *afs_alloc_flat_call(const struct afs_call_type *type, 218struct afs_call *afs_alloc_flat_call(const struct afs_call_type *type,
@@ -326,7 +355,8 @@ int afs_make_call(struct in_addr *addr, struct afs_call *call, gfp_t gfp,
326 atomic_read(&afs_outstanding_calls)); 355 atomic_read(&afs_outstanding_calls));
327 356
328 call->wait_mode = wait_mode; 357 call->wait_mode = wait_mode;
329 INIT_WORK(&call->async_work, afs_process_async_call); 358 call->async_workfn = afs_process_async_call;
359 INIT_WORK(&call->async_work, afs_async_workfn);
330 360
331 memset(&srx, 0, sizeof(srx)); 361 memset(&srx, 0, sizeof(srx));
332 srx.srx_family = AF_RXRPC; 362 srx.srx_family = AF_RXRPC;
@@ -383,11 +413,8 @@ error_do_abort:
383 rxrpc_kernel_abort_call(rxcall, RX_USER_ABORT); 413 rxrpc_kernel_abort_call(rxcall, RX_USER_ABORT);
384 while ((skb = skb_dequeue(&call->rx_queue))) 414 while ((skb = skb_dequeue(&call->rx_queue)))
385 afs_free_skb(skb); 415 afs_free_skb(skb);
386 rxrpc_kernel_end_call(rxcall);
387 call->rxcall = NULL;
388error_kill_call: 416error_kill_call:
389 call->type->destructor(call); 417 afs_end_call(call);
390 afs_free_call(call);
391 _leave(" = %d", ret); 418 _leave(" = %d", ret);
392 return ret; 419 return ret;
393} 420}
@@ -509,12 +536,8 @@ static void afs_deliver_to_call(struct afs_call *call)
509 if (call->state >= AFS_CALL_COMPLETE) { 536 if (call->state >= AFS_CALL_COMPLETE) {
510 while ((skb = skb_dequeue(&call->rx_queue))) 537 while ((skb = skb_dequeue(&call->rx_queue)))
511 afs_free_skb(skb); 538 afs_free_skb(skb);
512 if (call->incoming) { 539 if (call->incoming)
513 rxrpc_kernel_end_call(call->rxcall); 540 afs_end_call(call);
514 call->rxcall = NULL;
515 call->type->destructor(call);
516 afs_free_call(call);
517 }
518 } 541 }
519 542
520 _leave(""); 543 _leave("");
@@ -564,10 +587,7 @@ static int afs_wait_for_call_to_complete(struct afs_call *call)
564 } 587 }
565 588
566 _debug("call complete"); 589 _debug("call complete");
567 rxrpc_kernel_end_call(call->rxcall); 590 afs_end_call(call);
568 call->rxcall = NULL;
569 call->type->destructor(call);
570 afs_free_call(call);
571 _leave(" = %d", ret); 591 _leave(" = %d", ret);
572 return ret; 592 return ret;
573} 593}
@@ -603,11 +623,8 @@ static int afs_dont_wait_for_call_to_complete(struct afs_call *call)
603/* 623/*
604 * delete an asynchronous call 624 * delete an asynchronous call
605 */ 625 */
606static void afs_delete_async_call(struct work_struct *work) 626static void afs_delete_async_call(struct afs_call *call)
607{ 627{
608 struct afs_call *call =
609 container_of(work, struct afs_call, async_work);
610
611 _enter(""); 628 _enter("");
612 629
613 afs_free_call(call); 630 afs_free_call(call);
@@ -620,11 +637,8 @@ static void afs_delete_async_call(struct work_struct *work)
620 * - on a multiple-thread workqueue this work item may try to run on several 637 * - on a multiple-thread workqueue this work item may try to run on several
621 * CPUs at the same time 638 * CPUs at the same time
622 */ 639 */
623static void afs_process_async_call(struct work_struct *work) 640static void afs_process_async_call(struct afs_call *call)
624{ 641{
625 struct afs_call *call =
626 container_of(work, struct afs_call, async_work);
627
628 _enter(""); 642 _enter("");
629 643
630 if (!skb_queue_empty(&call->rx_queue)) 644 if (!skb_queue_empty(&call->rx_queue))
@@ -637,10 +651,7 @@ static void afs_process_async_call(struct work_struct *work)
637 call->reply = NULL; 651 call->reply = NULL;
638 652
639 /* kill the call */ 653 /* kill the call */
640 rxrpc_kernel_end_call(call->rxcall); 654 afs_end_call_nofree(call);
641 call->rxcall = NULL;
642 if (call->type->destructor)
643 call->type->destructor(call);
644 655
645 /* we can't just delete the call because the work item may be 656 /* we can't just delete the call because the work item may be
646 * queued */ 657 * queued */
@@ -663,13 +674,6 @@ void afs_transfer_reply(struct afs_call *call, struct sk_buff *skb)
663 call->reply_size += len; 674 call->reply_size += len;
664} 675}
665 676
666static void afs_async_workfn(struct work_struct *work)
667{
668 struct afs_call *call = container_of(work, struct afs_call, async_work);
669
670 call->async_workfn(work);
671}
672
673/* 677/*
674 * accept the backlog of incoming calls 678 * accept the backlog of incoming calls
675 */ 679 */
@@ -790,10 +794,7 @@ void afs_send_empty_reply(struct afs_call *call)
790 _debug("oom"); 794 _debug("oom");
791 rxrpc_kernel_abort_call(call->rxcall, RX_USER_ABORT); 795 rxrpc_kernel_abort_call(call->rxcall, RX_USER_ABORT);
792 default: 796 default:
793 rxrpc_kernel_end_call(call->rxcall); 797 afs_end_call(call);
794 call->rxcall = NULL;
795 call->type->destructor(call);
796 afs_free_call(call);
797 _leave(" [error]"); 798 _leave(" [error]");
798 return; 799 return;
799 } 800 }
@@ -823,17 +824,16 @@ void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len)
823 call->state = AFS_CALL_AWAIT_ACK; 824 call->state = AFS_CALL_AWAIT_ACK;
824 n = rxrpc_kernel_send_data(call->rxcall, &msg, len); 825 n = rxrpc_kernel_send_data(call->rxcall, &msg, len);
825 if (n >= 0) { 826 if (n >= 0) {
827 /* Success */
826 _leave(" [replied]"); 828 _leave(" [replied]");
827 return; 829 return;
828 } 830 }
831
829 if (n == -ENOMEM) { 832 if (n == -ENOMEM) {
830 _debug("oom"); 833 _debug("oom");
831 rxrpc_kernel_abort_call(call->rxcall, RX_USER_ABORT); 834 rxrpc_kernel_abort_call(call->rxcall, RX_USER_ABORT);
832 } 835 }
833 rxrpc_kernel_end_call(call->rxcall); 836 afs_end_call(call);
834 call->rxcall = NULL;
835 call->type->destructor(call);
836 afs_free_call(call);
837 _leave(" [error]"); 837 _leave(" [error]");
838} 838}
839 839