include/trace/events/workqueue.h

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