LXR linux/include/trace/events/workqueue.h

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