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