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rxrpc: Trace UDP transmission failure

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Add a tracepoint to log transmission failure from the UDP transport socket
being used by AF_RXRPC.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-05-10 23:26:01 +01:00
parent 494337c918
commit 6b47fe1d1c
5 changed files with 90 additions and 8 deletions
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11
net/rxrpc/conn_event.c
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@@ -40,7 +40,7 @@ static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn,
} __attribute__((packed)) pkt;
struct rxrpc_ackinfo ack_info;
size_t len;
int ioc;
int ret, ioc;
u32 serial, mtu, call_id, padding;
_enter("%d", conn->debug_id);
@@ -135,10 +135,13 @@ static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn,
break;
}
kernel_sendmsg(conn->params.local->socket, &msg, iov, ioc, len);
ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, ioc, len);
conn->params.peer->last_tx_at = ktime_get_real();
if (ret < 0)
trace_rxrpc_tx_fail(conn->debug_id, serial, ret,
rxrpc_tx_fail_call_final_resend);
_leave("");
return;
}
/*
@@ -236,6 +239,8 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
ret = kernel_sendmsg(conn->params.local->socket, &msg, iov, 2, len);
if (ret < 0) {
trace_rxrpc_tx_fail(conn->debug_id, serial, ret,
rxrpc_tx_fail_conn_abort);
_debug("sendmsg failed: %d", ret);
return -EAGAIN;
}