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rxrpc: Add a tracepoint to follow packets in the Rx buffer

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Add a tracepoint to follow the life of packets that get added to a call's
receive buffer.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2016-09-17 10:49:13 +01:00
parent f3639df2d9
commit 58dc63c998
6 changed files with 73 additions and 1 deletions
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6
net/rxrpc/input.c
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@@ -284,8 +284,12 @@ next_subpacket:
call->rxtx_buffer[ix] = skb;
if (after(seq, call->rx_top))
smp_store_release(&call->rx_top, seq);
if (flags & RXRPC_LAST_PACKET)
if (flags & RXRPC_LAST_PACKET) {
set_bit(RXRPC_CALL_RX_LAST, &call->flags);
trace_rxrpc_receive(call, rxrpc_receive_queue_last, serial, seq);
} else {
trace_rxrpc_receive(call, rxrpc_receive_queue, serial, seq);
}
queued = true;
if (after_eq(seq, call->rx_expect_next)) {