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/workqueue.h>
   8 #include <linux/sched.h>
   9 #include <linux/tracepoint.h>
  10
  11 DECLARE_EVENT_CLASS(workqueue,
  12
  13         TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
  14
  15         TP_ARGS(wq_thread, work),
  16
  17         TP_STRUCT__entry(
  18                 __array(char,           thread_comm,    TASK_COMM_LEN)
  19                 __field(pid_t,          thread_pid)
  20                 __field(work_func_t,    func)
  21         ),
  22
  23         TP_fast_assign(
  24                 memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
  25                 __entry->thread_pid     = wq_thread->pid;
  26                 __entry->func           = work->func;
  27         ),
  28
  29         TP_printk("thread=%s:%d func=%pf", __entry->thread_comm,
  30                 __entry->thread_pid, __entry->func)
  31 );
  32
  33 DEFINE_EVENT(workqueue, workqueue_insertion,
  34
  35         TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
  36
  37         TP_ARGS(wq_thread, work)
  38 );
  39
  40 DEFINE_EVENT(workqueue, workqueue_execution,
  41
  42         TP_PROTO(struct task_struct *wq_thread, struct work_struct *work),
  43
  44         TP_ARGS(wq_thread, work)
  45 );
  46
  47 /* Trace the creation of one workqueue thread on a cpu */
  48 TRACE_EVENT(workqueue_creation,
  49
  50         TP_PROTO(struct task_struct *wq_thread, int cpu),
  51
  52         TP_ARGS(wq_thread, cpu),
  53
  54         TP_STRUCT__entry(
  55                 __array(char,   thread_comm,    TASK_COMM_LEN)
  56                 __field(pid_t,  thread_pid)
  57                 __field(int,    cpu)
  58         ),
  59
  60         TP_fast_assign(
  61                 memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
  62                 __entry->thread_pid     = wq_thread->pid;
  63                 __entry->cpu            = cpu;
  64         ),
  65
  66         TP_printk("thread=%s:%d cpu=%d", __entry->thread_comm,
  67                 __entry->thread_pid, __entry->cpu)
  68 );
  69
  70 TRACE_EVENT(workqueue_destruction,
  71
  72         TP_PROTO(struct task_struct *wq_thread),
  73
  74         TP_ARGS(wq_thread),
  75
  76         TP_STRUCT__entry(
  77                 __array(char,   thread_comm,    TASK_COMM_LEN)
  78                 __field(pid_t,  thread_pid)
  79         ),
  80
  81         TP_fast_assign(
  82                 memcpy(__entry->thread_comm, wq_thread->comm, TASK_COMM_LEN);
  83                 __entry->thread_pid     = wq_thread->pid;
  84         ),
  85
  86         TP_printk("thread=%s:%d", __entry->thread_comm, __entry->thread_pid)
  87 );
  88
  89 #endif /* _TRACE_WORKQUEUE_H */
  90
  91 /* This part must be outside protection */
  92 #include <trace/define_trace.h>