From 7bf9c4a88e3e33cf593b2452776361c6db0f28b0 Mon Sep 17 00:00:00 2001
From: Zqiang <qiang.zhang@windriver.com>
Date: Mon, 4 Jan 2021 20:43:06 +0800
Subject: [PATCH] workqueue: tracing the name of the workqueue instead of it's
address
This patch tracing workqueue name instead of it's address, the
new format is as follows.
workqueue_queue_work: work struct=0000000084e3df56 function=
drm_fb_helper_dirty_work workqueue=events req_cpu=256 cpu=1
This tell us to know which workqueue our work is queued.
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
include/trace/events/workqueue.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index 9b8ae961acc53..970cc2ea28500 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -30,7 +30,7 @@ TRACE_EVENT(workqueue_queue_work,
TP_STRUCT__entry(
__field( void *, work )
__field( void *, function)
- __field( void *, workqueue)
+ __field( const char *, workqueue)
__field( unsigned int, req_cpu )
__field( unsigned int, cpu )
),
@@ -38,12 +38,12 @@ TRACE_EVENT(workqueue_queue_work,
TP_fast_assign(
__entry->work = work;
__entry->function = work->func;
- __entry->workqueue = pwq->wq;
+ __entry->workqueue = pwq->wq->name;
__entry->req_cpu = req_cpu;
__entry->cpu = pwq->pool->cpu;
),
- TP_printk("work struct=%p function=%ps workqueue=%p req_cpu=%u cpu=%u",
+ TP_printk("work struct=%p function=%ps workqueue=%s req_cpu=%u cpu=%u",
__entry->work, __entry->function, __entry->workqueue,
__entry->req_cpu, __entry->cpu)
);
--
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