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Commit f6e37b25 authored by Song Liu's avatar Song Liu Committed by David S. Miller
Browse files

tcp: add trace event class tcp_event_sk_skb 



Introduce event class tcp_event_sk_skb for tcp tracepoints that
have arguments sk and skb.

Existing tracepoint trace_tcp_retransmit_skb() falls into this class.
This patch rewrites the definition of trace_tcp_retransmit_skb() with
tcp_event_sk_skb.

Signed-off-by: default avatarSong Liu <songliubraving@fb.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bded4422

include/trace/events/tcp.h

+14 −1
Original line number Diff line number Diff line
@@ -9,7 +9,13 @@ 
#include <linux/tracepoint.h>

#include <net/ipv6.h>



TRACE_EVENT(tcp_retransmit_skb,

/*

 * tcp event with arguments sk and skb

 *

 * Note: this class requires a valid sk pointer; while skb pointer could

 *       be NULL.

 */

DECLARE_EVENT_CLASS(tcp_event_sk_skb,



	TP_PROTO(struct sock *sk, struct sk_buff *skb),
@@ -64,6 +70,13 @@ TRACE_EVENT(tcp_retransmit_skb, 
		  __entry->saddr_v6, __entry->daddr_v6)

);



DEFINE_EVENT(tcp_event_sk_skb, tcp_retransmit_skb,



	TP_PROTO(struct sock *sk, struct sk_buff *skb),



	TP_ARGS(sk, skb)

);



#endif /* _TRACE_TCP_H */



/* This part must be outside protection */