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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 /include | |
| parent | ba39f3a0ed756ccd882adf4a77916ec863db3ce4 (diff) | |
| download | linux-stable-71f3ca408fd43b586c02480768a503af075b247e.tar.gz linux-stable-71f3ca408fd43b586c02480768a503af075b247e.tar.bz2 linux-stable-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 'include')
| -rw-r--r-- | include/trace/events/rxrpc.h | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h index 58732202e9f0..75a5d8bf50e1 100644 --- a/include/trace/events/rxrpc.h +++ b/include/trace/events/rxrpc.h @@ -107,14 +107,14 @@ TRACE_EVENT(rxrpc_call, ); TRACE_EVENT(rxrpc_skb, - TP_PROTO(struct sk_buff *skb, int op, int usage, int mod_count, - const void *where), + TP_PROTO(struct sk_buff *skb, enum rxrpc_skb_trace op, + int usage, int mod_count, const void *where), TP_ARGS(skb, op, usage, mod_count, where), TP_STRUCT__entry( __field(struct sk_buff *, skb ) - __field(int, op ) + __field(enum rxrpc_skb_trace, op ) __field(int, usage ) __field(int, mod_count ) __field(const void *, where ) @@ -130,11 +130,7 @@ TRACE_EVENT(rxrpc_skb, TP_printk("s=%p %s u=%d m=%d p=%pSR", __entry->skb, - (__entry->op == 0 ? "NEW" : - __entry->op == 1 ? "SEE" : - __entry->op == 2 ? "GET" : - __entry->op == 3 ? "FRE" : - "PUR"), + rxrpc_skb_traces[__entry->op], __entry->usage, __entry->mod_count, __entry->where) |