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rxrpc: Add tracepoint for working out where aborts happen

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Add a tracepoint for working out where local aborts happen.  Each
tracepoint call is labelled with a 3-letter code so that they can be
distinguished - and the DATA sequence number is added too where available.

rxrpc_kernel_abort_call() also takes a 3-letter code so that AFS can
indicate the circumstances when it aborts a call.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2016-09-06 22:19:51 +01:00
parent e8d6bbb05a
commit 5a42976d4f
11 changed files with 132 additions and 98 deletions
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7
net/rxrpc/input.c
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@@ -429,7 +429,7 @@ protocol_error:
_debug("protocol error");
write_lock_bh(&call->state_lock);
protocol_error_locked:
if (__rxrpc_abort_call(call, RX_PROTOCOL_ERROR, EPROTO))
if (__rxrpc_abort_call("FPR", call, 0, RX_PROTOCOL_ERROR, EPROTO))
rxrpc_queue_call(call);
free_packet_unlock:
write_unlock_bh(&call->state_lock);
@@ -495,9 +495,10 @@ static void rxrpc_process_jumbo_packet(struct rxrpc_call *call,
protocol_error:
_debug("protocol error");
rxrpc_free_skb(part);
rxrpc_free_skb(jumbo);
if (rxrpc_abort_call(call, RX_PROTOCOL_ERROR, EPROTO))
if (rxrpc_abort_call("PJP", call, sp->hdr.seq,
RX_PROTOCOL_ERROR, EPROTO))
rxrpc_queue_call(call);
rxrpc_free_skb(jumbo);
_leave("");
}