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| author | David Howells <dhowells@redhat.com> | 2016-09-17 10:49:14 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2016-09-17 11:24:04 +0100 |
| commit | 71f3ca408fd43b586c02480768a503af075b247e (patch) | |
| tree | 9fcca5ef4f931aa9836e5f92b78abfb5c2d68a55 /net/rxrpc/call_event.c | |
| parent | ba39f3a0ed756ccd882adf4a77916ec863db3ce4 (diff) | |
| download | linux-71f3ca408fd43b586c02480768a503af075b247e.tar.gz linux-71f3ca408fd43b586c02480768a503af075b247e.tar.bz2 linux-71f3ca408fd43b586c02480768a503af075b247e.zip | |
rxrpc: Improve skb tracing
Improve sk_buff tracing within AF_RXRPC by the following means:
(1) Use an enum to note the event type rather than plain integers and use
an array of event names rather than a big multi ?: list.
(2) Distinguish Rx from Tx packets and account them separately. This
requires the call phase to be tracked so that we know what we might
find in rxtx_buffer[].
(3) Add a parameter to rxrpc_{new,see,get,free}_skb() to indicate the
event type.
(4) A pair of 'rotate' events are added to indicate packets that are about
to be rotated out of the Rx and Tx windows.
(5) A pair of 'lost' events are added, along with rxrpc_lose_skb() for
packet loss injection recording.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/call_event.c')
| -rw-r--r-- | net/rxrpc/call_event.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/rxrpc/call_event.c b/net/rxrpc/call_event.c index f0cabc48a1b7..7d1b99824ed9 100644 --- a/net/rxrpc/call_event.c +++ b/net/rxrpc/call_event.c @@ -170,7 +170,7 @@ static void rxrpc_resend(struct rxrpc_call *call) continue; skb = call->rxtx_buffer[ix]; - rxrpc_see_skb(skb); + rxrpc_see_skb(skb, rxrpc_skb_tx_seen); sp = rxrpc_skb(skb); if (annotation == RXRPC_TX_ANNO_UNACK) { @@ -199,7 +199,7 @@ static void rxrpc_resend(struct rxrpc_call *call) continue; skb = call->rxtx_buffer[ix]; - rxrpc_get_skb(skb); + rxrpc_get_skb(skb, rxrpc_skb_tx_got); spin_unlock_bh(&call->lock); sp = rxrpc_skb(skb); @@ -211,7 +211,7 @@ static void rxrpc_resend(struct rxrpc_call *call) if (rxrpc_send_data_packet(call->conn, skb) < 0) { call->resend_at = now + 2; - rxrpc_free_skb(skb); + rxrpc_free_skb(skb, rxrpc_skb_tx_freed); return; } @@ -219,7 +219,7 @@ static void rxrpc_resend(struct rxrpc_call *call) rxrpc_expose_client_call(call); sp->resend_at = now + rxrpc_resend_timeout; - rxrpc_free_skb(skb); + rxrpc_free_skb(skb, rxrpc_skb_tx_freed); spin_lock_bh(&call->lock); /* We need to clear the retransmit state, but there are two |