instrumentation/events/lttng-module/workqueue.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM workqueue
   4
   5 #if !defined(LTTNG_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define LTTNG_TRACE_WORKQUEUE_H
   7
   8 #include <probes/lttng-tracepoint-event.h>
   9 #include <linux/workqueue.h>
  10 #include <linux/version.h>
  11
  12 #ifndef _TRACE_WORKQUEUE_DEF_
  13 #define _TRACE_WORKQUEUE_DEF_
  14
  15 struct worker;
  16 struct global_cwq;
  17
  18 #endif
  19
  20 LTTNG_TRACEPOINT_EVENT_CLASS(workqueue_work,
  21
  22         TP_PROTO(struct work_struct *work),
  23
  24         TP_ARGS(work),
  25
  26         TP_FIELDS(
  27                 ctf_integer_hex(void *, work, work)
  28         )
  29 )
  30
  31 /**
  32  * workqueue_queue_work - called when a work gets queued
  33  * @req_cpu:    the requested cpu
  34  * @cwq:        pointer to struct cpu_workqueue_struct
  35  * @work:       pointer to struct work_struct
  36  *
  37  * This event occurs when a work is queued immediately or once a
  38  * delayed work is actually queued on a workqueue (ie: once the delay
  39  * has been reached).
  40  */
  41 LTTNG_TRACEPOINT_EVENT(workqueue_queue_work,
  42
  43 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
  44         TP_PROTO(unsigned int req_cpu, struct pool_workqueue *pwq,
  45                  struct work_struct *work),
  46
  47         TP_ARGS(req_cpu, pwq, work),
  48 #else
  49         TP_PROTO(unsigned int req_cpu, struct cpu_workqueue_struct *cwq,
  50                  struct work_struct *work),
  51
  52         TP_ARGS(req_cpu, cwq, work),
  53 #endif
  54
  55         TP_FIELDS(
  56                 ctf_integer_hex(void *, work, work)
  57                 ctf_integer_hex(void *, function, work->func)
  58                 ctf_integer(unsigned int, req_cpu, req_cpu)
  59         )
  60 )
  61
  62 /**
  63  * workqueue_activate_work - called when a work gets activated
  64  * @work:       pointer to struct work_struct
  65  *
  66  * This event occurs when a queued work is put on the active queue,
  67  * which happens immediately after queueing unless @max_active limit
  68  * is reached.
  69  */
  70 LTTNG_TRACEPOINT_EVENT_INSTANCE(workqueue_work, workqueue_activate_work,
  71
  72         TP_PROTO(struct work_struct *work),
  73
  74         TP_ARGS(work)
  75 )
  76
  77 /**
  78  * workqueue_execute_start - called immediately before the workqueue callback
  79  * @work:       pointer to struct work_struct
  80  *
  81  * Allows to track workqueue execution.
  82  */
  83 LTTNG_TRACEPOINT_EVENT(workqueue_execute_start,
  84
  85         TP_PROTO(struct work_struct *work),
  86
  87         TP_ARGS(work),
  88
  89         TP_FIELDS(
  90                 ctf_integer_hex(void *, work, work)
  91                 ctf_integer_hex(void *, function, work->func)
  92         )
  93 )
  94
  95 /**
  96  * workqueue_execute_end - called immediately after the workqueue callback
  97  * @work:       pointer to struct work_struct
  98  *
  99  * Allows to track workqueue execution.
 100  */
 101 LTTNG_TRACEPOINT_EVENT_INSTANCE(workqueue_work, workqueue_execute_end,
 102
 103         TP_PROTO(struct work_struct *work),
 104
 105         TP_ARGS(work)
 106 )
 107
 108 #endif /*  LTTNG_TRACE_WORKQUEUE_H */
 109
 110 /* This part must be outside protection */
 111 #include <probes/define_trace.h>