1 /* SPDX-License-Identifier: GPL-2.0 */
2 #undef TRACE_SYSTEM
3 #define TRACE_SYSTEM workqueue
4
5 #if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
6 #define _TRACE_WORKQUEUE_H
7
8 #include <linux/tracepoint.h>
9 #include <linux/workqueue.h>
10
11 struct pool_workqueue;
12
13 /**
14 * workqueue_queue_work - called when a work gets queued
15 * @req_cpu: the requested cpu
16 * @pwq: pointer to struct pool_workqueue
17 * @work: pointer to struct work_struct
18 *
19 * This event occurs when a work is queued immediately or once a
20 * delayed work is actually queued on a workqueue (ie: once the delay
21 * has been reached).
22 */
23 TRACE_EVENT(workqueue_queue_work,
24
25 TP_PROTO(int req_cpu, struct pool_workqueue *pwq,
26 struct work_struct *work),
27
28 TP_ARGS(req_cpu, pwq, work),
29
30 TP_STRUCT__entry(
31 __field( void *, work )
32 __field( void *, function)
33 __string( workqueue, pwq->wq->name)
34 __field( int, req_cpu )
35 __field( int, cpu )
36 ),
37
38 TP_fast_assign(
39 __entry->work = work;
40 __entry->function = work->func;
41 __assign_str(workqueue);
42 __entry->req_cpu = req_cpu;
43 __entry->cpu = pwq->pool->cpu;
44 ),
45
46 TP_printk("work struct=%p function=%ps workqueue=%s req_cpu=%d cpu=%d",
47 __entry->work, __entry->function, __get_str(workqueue),
48 __entry->req_cpu, __entry->cpu)
49 );
50
51 /**
52 * workqueue_activate_work - called when a work gets activated
53 * @work: pointer to struct work_struct
54 *
55 * This event occurs when a queued work is put on the active queue,
56 * which happens immediately after queueing unless @max_active limit
57 * is reached.
58 */
59 TRACE_EVENT(workqueue_activate_work,
60
61 TP_PROTO(struct work_struct *work),
62
63 TP_ARGS(work),
64
65 TP_STRUCT__entry(
66 __field( void *, work )
67 __field( void *, function)
68 ),
69
70 TP_fast_assign(
71 __entry->work = work;
72 __entry->function = work->func;
73 ),
74
75 TP_printk("work struct %p function=%ps ", __entry->work, __entry->function)
76 );
77
78 /**
79 * workqueue_execute_start - called immediately before the workqueue callback
80 * @work: pointer to struct work_struct
81 *
82 * Allows to track workqueue execution.
83 */
84 TRACE_EVENT(workqueue_execute_start,
85
86 TP_PROTO(struct work_struct *work),
87
88 TP_ARGS(work),
89
90 TP_STRUCT__entry(
91 __field( void *, work )
92 __field( void *, function)
93 ),
94
95 TP_fast_assign(
96 __entry->work = work;
97 __entry->function = work->func;
98 ),
99
100 TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
101 );
102
103 /**
104 * workqueue_execute_end - called immediately after the workqueue callback
105 * @work: pointer to struct work_struct
106 * @function: pointer to worker function
107 *
108 * Allows to track workqueue execution.
109 */
110 TRACE_EVENT(workqueue_execute_end,
111
112 TP_PROTO(struct work_struct *work, work_func_t function),
113
114 TP_ARGS(work, function),
115
116 TP_STRUCT__entry(
117 __field( void *, work )
118 __field( void *, function)
119 ),
120
121 TP_fast_assign(
122 __entry->work = work;
123 __entry->function = function;
124 ),
125
126 TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
127 );
128
129 #endif /* _TRACE_WORKQUEUE_H */
130
131 /* This part must be outside protection */
132 #include <trace/define_trace.h>
133
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