diff options
| author | David Howells <dhowells@redhat.com> | 2022-11-11 16:47:35 +0300 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2022-12-01 16:36:42 +0300 |
| commit | 32cf8edb079a6a687a2b5dba39a813a0bbd0ddf9 (patch) | |
| tree | acbf8a435043daa16df69c2d9f2fd3ea769cc788 /net/rxrpc/output.c | |
| parent | 3dd9c8b5f09fd24652729a3da5c5efa3ec2c4590 (diff) | |
| download | linux-32cf8edb079a6a687a2b5dba39a813a0bbd0ddf9.tar.xz | |
rxrpc: Trace/count transmission underflows and cwnd resets
Add a tracepoint to log when a cwnd reset occurs due to lack of
transmission on a call.
Add stat counters to count transmission underflows (ie. when we have tx
window space, but sendmsg doesn't manage to keep up), cwnd resets and
transmission failures.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Diffstat (limited to 'net/rxrpc/output.c')
| -rw-r--r-- | net/rxrpc/output.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c index e5d715b855fc..8147a47d1702 100644 --- a/net/rxrpc/output.c +++ b/net/rxrpc/output.c @@ -485,6 +485,7 @@ dont_set_request_ack: up_read(&conn->local->defrag_sem); if (ret < 0) { + rxrpc_inc_stat(call->rxnet, stat_tx_data_send_fail); rxrpc_cancel_rtt_probe(call, serial, rtt_slot); trace_rxrpc_tx_fail(call->debug_id, serial, ret, rxrpc_tx_point_call_data_nofrag); @@ -567,6 +568,7 @@ send_fragmentable: } if (ret < 0) { + rxrpc_inc_stat(call->rxnet, stat_tx_data_send_fail); rxrpc_cancel_rtt_probe(call, serial, rtt_slot); trace_rxrpc_tx_fail(call->debug_id, serial, ret, rxrpc_tx_point_call_data_frag); |