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_yinga...@quicinc.com>
---
Changelog:
v1:
https://lore.kernel.org/all/20240308010929.1955339-1-quic_yinga...@quicinc.com/
v1->v2:
- do not follow checkpatch in TRACE_EVENT() macros
- add sample "workqueue_activate_work: work struct ffffff80413a78b8
function=vmstat_update"
---
include/trace/events/workqueue.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index 262d52021c23..6ef5b7254070 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -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)
);
/**
--
2.25.1
