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workqueue: add function in event of workqueue_activate_work

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The trace event "workqueue_activate_work" only print work struct.
However, function is the region of interest in a full sequence of work.
Current workqueue_activate_work trace event output:

    workqueue_activate_work: work struct ffffff88b4a0f450

With this change, workqueue_activate_work will print the function name,
align with workqueue_queue_work/execute_start/execute_end event.

    workqueue_activate_work: work struct ffffff80413a78b8 function=vmstat_update

Signed-off-by: Kassey Li <quic_yingangl@quicinc.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Kassey Li 2024-03-08 10:18:18 +08:00 committed by Tejun Heo
parent 79202591a5
commit d6a7bbdde6
1 changed files with 3 additions and 1 deletions
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4
include/trace/events/workqueue.h
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@ -64,13 +64,15 @@ TRACE_EVENT(workqueue_activate_work,
TP_STRUCT__entry(
__field( void *, work )
__field( void *, function)
),
TP_fast_assign(
__entry->work = work;
__entry->function = work->func;
),
TP_printk("work struct %p", __entry->work)
TP_printk("work struct %p function=%ps ", __entry->work, __entry->function)
);
/**