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 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(unsigned 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( unsigned int,  req_cpu )
  35                 __field( unsigned int,  cpu     )
  36         ),
  37
  38         TP_fast_assign(
  39                 __entry->work           = work;
  40                 __entry->function       = work->func;
  41                 __assign_str(workqueue, pwq->wq->name);
  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=%u cpu=%u",
  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         ),
  68
  69         TP_fast_assign(
  70                 __entry->work           = work;
  71         ),
  72
  73         TP_printk("work struct %p", __entry->work)
  74 );
  75
  76 /**
  77  * workqueue_execute_start - called immediately before the workqueue callback
  78  * @work:       pointer to struct work_struct
  79  *
  80  * Allows to track workqueue execution.
  81  */
  82 TRACE_EVENT(workqueue_execute_start,
  83
  84         TP_PROTO(struct work_struct *work),
  85
  86         TP_ARGS(work),
  87
  88         TP_STRUCT__entry(
  89                 __field( void *,        work    )
  90                 __field( void *,        function)
  91         ),
  92
  93         TP_fast_assign(
  94                 __entry->work           = work;
  95                 __entry->function       = work->func;
  96         ),
  97
  98         TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
  99 );
 100
 101 /**
 102  * workqueue_execute_end - called immediately after the workqueue callback
 103  * @work:       pointer to struct work_struct
 104  * @function:   pointer to worker function
 105  *
 106  * Allows to track workqueue execution.
 107  */
 108 TRACE_EVENT(workqueue_execute_end,
 109
 110         TP_PROTO(struct work_struct *work, work_func_t function),
 111
 112         TP_ARGS(work, function),
 113
 114         TP_STRUCT__entry(
 115                 __field( void *,        work    )
 116                 __field( void *,        function)
 117         ),
 118
 119         TP_fast_assign(
 120                 __entry->work           = work;
 121                 __entry->function       = function;
 122         ),
 123
 124         TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
 125 );
 126
 127 #endif /*  _TRACE_WORKQUEUE_H */
 128
 129 /* This part must be outside protection */
 130 #include <trace/define_trace.h>