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kernel/linux-rt-4.4.41/include/trace/events/workqueue.h 2.67 KB
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  #undef TRACE_SYSTEM
  #define TRACE_SYSTEM workqueue
  
  #if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
  #define _TRACE_WORKQUEUE_H
  
  #include <linux/tracepoint.h>
  #include <linux/workqueue.h>
  
  DECLARE_EVENT_CLASS(workqueue_work,
  
  	TP_PROTO(struct work_struct *work),
  
  	TP_ARGS(work),
  
  	TP_STRUCT__entry(
  		__field( void *,	work	)
  	),
  
  	TP_fast_assign(
  		__entry->work		= work;
  	),
  
  	TP_printk("work struct %p", __entry->work)
  );
  
  /**
   * workqueue_queue_work - called when a work gets queued
   * @req_cpu:	the requested cpu
   * @pwq:	pointer to struct pool_workqueue
   * @work:	pointer to struct work_struct
   *
   * This event occurs when a work is queued immediately or once a
   * delayed work is actually queued on a workqueue (ie: once the delay
   * has been reached).
   */
  TRACE_EVENT(workqueue_queue_work,
  
  	TP_PROTO(unsigned int req_cpu, struct pool_workqueue *pwq,
  		 struct work_struct *work),
  
  	TP_ARGS(req_cpu, pwq, work),
  
  	TP_STRUCT__entry(
  		__field( void *,	work	)
  		__field( void *,	function)
  		__field( void *,	workqueue)
  		__field( unsigned int,	req_cpu	)
  		__field( unsigned int,	cpu	)
  	),
  
  	TP_fast_assign(
  		__entry->work		= work;
  		__entry->function	= work->func;
  		__entry->workqueue	= pwq->wq;
  		__entry->req_cpu	= req_cpu;
  		__entry->cpu		= pwq->pool->cpu;
  	),
  
  	TP_printk("work struct=%p function=%pf workqueue=%p req_cpu=%u cpu=%u",
  		  __entry->work, __entry->function, __entry->workqueue,
  		  __entry->req_cpu, __entry->cpu)
  );
  
  /**
   * workqueue_activate_work - called when a work gets activated
   * @work:	pointer to struct work_struct
   *
   * This event occurs when a queued work is put on the active queue,
   * which happens immediately after queueing unless @max_active limit
   * is reached.
   */
  DEFINE_EVENT(workqueue_work, workqueue_activate_work,
  
  	TP_PROTO(struct work_struct *work),
  
  	TP_ARGS(work)
  );
  
  /**
   * workqueue_execute_start - called immediately before the workqueue callback
   * @work:	pointer to struct work_struct
   *
   * Allows to track workqueue execution.
   */
  TRACE_EVENT(workqueue_execute_start,
  
  	TP_PROTO(struct work_struct *work),
  
  	TP_ARGS(work),
  
  	TP_STRUCT__entry(
  		__field( void *,	work	)
  		__field( void *,	function)
  	),
  
  	TP_fast_assign(
  		__entry->work		= work;
  		__entry->function	= work->func;
  	),
  
  	TP_printk("work struct %p: function %pf", __entry->work, __entry->function)
  );
  
  /**
   * workqueue_execute_end - called immediately after the workqueue callback
   * @work:	pointer to struct work_struct
   *
   * Allows to track workqueue execution.
   */
  DEFINE_EVENT(workqueue_work, workqueue_execute_end,
  
  	TP_PROTO(struct work_struct *work),
  
  	TP_ARGS(work)
  );
  
  #endif /*  _TRACE_WORKQUEUE_H */
  
  /* This part must be outside protection */
  #include <trace/define_trace.h>