From 40e0b09081420853542571c38875b48b60404ebb Mon Sep 17 00:00:00 2001
From: Peilin Ye <peilin.ye@bytedance.com>
Date: Thu, 19 Jan 2023 16:45:16 -0800
Subject: net/sock: Introduce trace_sk_data_ready()

As suggested by Cong, introduce a tracepoint for all ->sk_data_ready()
callback implementations.  For example:

<...>
  iperf-609  [002] .....  70.660425: sk_data_ready: family=2 protocol=6 func=sock_def_readable
  iperf-609  [002] .....  70.660436: sk_data_ready: family=2 protocol=6 func=sock_def_readable
<...>

Suggested-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/xen/pvcalls-back.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'drivers/xen')

diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
index 0d4f8f4f4948..e2abc3474d85 100644
--- a/drivers/xen/pvcalls-back.c
+++ b/drivers/xen/pvcalls-back.c
@@ -14,6 +14,7 @@
 #include <net/inet_common.h>
 #include <net/inet_connection_sock.h>
 #include <net/request_sock.h>
+#include <trace/events/sock.h>
 
 #include <xen/events.h>
 #include <xen/grant_table.h>
@@ -300,6 +301,8 @@ static void pvcalls_sk_data_ready(struct sock *sock)
 	struct sock_mapping *map = sock->sk_user_data;
 	struct pvcalls_ioworker *iow;
 
+	trace_sk_data_ready(sock);
+
 	if (map == NULL)
 		return;
 
@@ -588,6 +591,8 @@ static void pvcalls_pass_sk_data_ready(struct sock *sock)
 	unsigned long flags;
 	int notify;
 
+	trace_sk_data_ready(sock);
+
 	if (mappass == NULL)
 		return;
 
-- 
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