linux-kernel - [PATCH] Documentation: tracing: update format of sched

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Message-Id: <20240314144136.19727-1-ahzahraee@gmail.com>
Date: Thu, 14 Mar 2024 15:41:36 +0100
From: Ali Zahraee <ahzahraee@...il.com>
To: rostedt@...dmis.org,
	mhiramat@...nel.org,
	mathieu.desnoyers@...icios.com,
	corbet@....net
Cc: Ali Zahraee <ahzahraee@...il.com>,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org,
	skhan@...uxfoundation.org,
	javier.carrasco.cruz@...il.com
Subject: [PATCH] Documentation: tracing: update format of sched_wakeup in example

The format of the sched_wakeup event is used as an example in the
documentation. But the given format is obsolete. This patch updates the
format in the example to match the current format of this event.

Signed-off-by: Ali Zahraee <ahzahraee@...il.com>
---
 Documentation/trace/events.rst | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/Documentation/trace/events.rst b/Documentation/trace/events.rst
index 759907c20e75..65fe205c95e6 100644
--- a/Documentation/trace/events.rst
+++ b/Documentation/trace/events.rst
@@ -129,24 +129,25 @@ event::
 	# cat /sys/kernel/tracing/events/sched/sched_wakeup/format
 
 	name: sched_wakeup
-	ID: 60
+	ID: 70
 	format:
 		field:unsigned short common_type;	offset:0;	size:2;
+                	signed:0;
 		field:unsigned char common_flags;	offset:2;	size:1;
-		field:unsigned char common_preempt_count;	offset:3;	size:1;
-		field:int common_pid;	offset:4;	size:4;
-		field:int common_tgid;	offset:8;	size:4;
+                	signed:0;
+		field:unsigned char common_preempt_count;	offset:3;
+                	size:1; signed:0;
+		field:int common_pid;	offset:4;	size:4;	signed:1;
 
-		field:char comm[TASK_COMM_LEN];	offset:12;	size:16;
-		field:pid_t pid;	offset:28;	size:4;
-		field:int prio;	offset:32;	size:4;
-		field:int success;	offset:36;	size:4;
-		field:int cpu;	offset:40;	size:4;
+		field:char comm[16];	offset:8;	size:16;	signed:0;
+		field:pid_t pid;	offset:24;	size:4;	signed:1;
+		field:int prio;	offset:28;	size:4;	signed:1;
+		field:int target_cpu;	offset:32;	size:4;	signed:1;
 
-	print fmt: "task %s:%d [%d] success=%d [%03d]", REC->comm, REC->pid,
-		   REC->prio, REC->success, REC->cpu
+	print fmt: "comm=%s pid=%d prio=%d target_cpu=%03d", REC->comm, REC->pid,
+        	        REC->prio, REC->target_cpu
 
-This event contains 10 fields, the first 5 common and the remaining 5
+This event contains 8 fields, the first 4 common and the remaining 4
 event-specific.  All the fields for this event are numeric, except for
 'comm' which is a string, a distinction important for event filtering.
 
-- 
2.34.1