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/* SPDX-License-Identifier: GPL-2.0 */
#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>
struct pool_workqueue;
struct worker_pool;
/**
* 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(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)
__string( workqueue, pwq->wq->name)
__field( int, req_cpu )
__field( int, cpu )
),
TP_fast_assign(
__entry->work = work;
__entry->function = work->func;
__assign_str(workqueue);
__entry->req_cpu = req_cpu;
__entry->cpu = pwq->pool->cpu;
),
TP_printk("work struct=%p function=%ps workqueue=%s req_cpu=%d cpu=%d",
__entry->work, __entry->function, __get_str(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.
*/
TRACE_EVENT(workqueue_activate_work,
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=%ps ", __entry->work, __entry->function)
);
/**
* 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 %ps", __entry->work, __entry->function)
);
/**
* workqueue_execute_end - called immediately after the workqueue callback
* @work: pointer to struct work_struct
* @function: pointer to worker function
*
* Allows to track workqueue execution.
*/
TRACE_EVENT(workqueue_execute_end,
TP_PROTO(struct work_struct *work, work_func_t function),
TP_ARGS(work, function),
TP_STRUCT__entry(
__field( void *, work )
__field( void *, function)
),
TP_fast_assign(
__entry->work = work;
__entry->function = function;
),
TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
);
/**
* workqueue_cpu_intensive - called when a work item exceeds cpu_intensive threshold
* @pwq: pointer to struct pool_workqueue
* @work: pointer to struct work_struct
* @function: pointer to worker function
* @duration_us: CPU time consumed in microseconds
*
* This event occurs when a concurrency-managed work item runs for longer
* than wq_cpu_intensive_thresh_us without sleeping and is excluded from
* concurrency management to prevent stalling other work items.
*/
TRACE_EVENT(workqueue_cpu_intensive,
TP_PROTO(struct pool_workqueue *pwq, struct work_struct *work,
work_func_t function, u64 duration_us),
TP_ARGS(pwq, work, function, duration_us),
TP_STRUCT__entry(
__field( void *, work )
__field( void *, function )
__string( workqueue, pwq->wq->name )
__field( int, cpu )
__field( u64, duration_us )
),
TP_fast_assign(
__entry->work = work;
__entry->function = function;
__assign_str(workqueue);
__entry->cpu = pwq->pool->cpu;
__entry->duration_us = duration_us;
),
TP_printk("work struct=%p function=%ps workqueue=%s cpu=%d duration_us=%llu",
__entry->work, __entry->function, __get_str(workqueue),
__entry->cpu, __entry->duration_us)
);
/**
* workqueue_mayday - called when a pool_workqueue sends mayday to rescuer
* @pwq: pointer to struct pool_workqueue
*
* This event occurs when a worker pool fails to create a new worker and
* requests the workqueue's rescuer thread to process pending works.
*/
TRACE_EVENT(workqueue_mayday,
TP_PROTO(struct pool_workqueue *pwq),
TP_ARGS(pwq),
TP_STRUCT__entry(
__string( workqueue, pwq->wq->name )
__field( int, pool_id )
__field( int, cpu )
__field( int, nr_active )
),
TP_fast_assign(
__assign_str(workqueue);
__entry->pool_id = pwq->pool->id;
__entry->cpu = pwq->pool->cpu;
__entry->nr_active = pwq->nr_active;
),
TP_printk("workqueue=%s pool_id=%d cpu=%d nr_active=%d",
__get_str(workqueue), __entry->pool_id, __entry->cpu,
__entry->nr_active)
);
/**
* workqueue_rescued - called when a work item is assigned to a rescuer
* @pwq: pointer to struct pool_workqueue
* @work: pointer to struct work_struct
* @function: pointer to worker function
*
* This event occurs when a work item is claimed by a rescuer thread
* to guarantee forward progress.
*/
TRACE_EVENT(workqueue_rescued,
TP_PROTO(struct pool_workqueue *pwq, struct work_struct *work,
work_func_t function),
TP_ARGS(pwq, work, function),
TP_STRUCT__entry(
__field( void *, work )
__field( void *, function )
__string( workqueue, pwq->wq->name )
__field( int, cpu )
),
TP_fast_assign(
__entry->work = work;
__entry->function = function;
__assign_str(workqueue);
__entry->cpu = pwq->pool->cpu;
),
TP_printk("work struct=%p function=%ps workqueue=%s cpu=%d",
__entry->work, __entry->function, __get_str(workqueue),
__entry->cpu)
);
/**
* workqueue_bh_budget_yield - called when a BH worker yields due to budget exhaustion
* @pool: pointer to struct worker_pool
* @restarts: number of restarts executed
* @timeout: whether execution hit the time limit (BH_WORKER_JIFFIES)
* @highpri: whether this is a high-priority BH pool
*
* This event occurs when a bottom-half (BH) worker pool running in softirq
* context exhausts its execution time slice or restart limit and must yield
* execution.
*/
TRACE_EVENT(workqueue_bh_budget_yield,
TP_PROTO(struct worker_pool *pool, int restarts, bool timeout, bool highpri),
TP_ARGS(pool, restarts, timeout, highpri),
TP_STRUCT__entry(
__field( int, pool_id )
__field( int, cpu )
__field( int, restarts )
__field( bool, timeout )
__field( bool, highpri )
),
TP_fast_assign(
__entry->pool_id = pool->id;
__entry->cpu = pool->cpu;
__entry->restarts = restarts;
__entry->timeout = timeout;
__entry->highpri = highpri;
),
TP_printk("pool_id=%d cpu=%d restarts=%d timeout=%d highpri=%d",
__entry->pool_id, __entry->cpu, __entry->restarts,
__entry->timeout, __entry->highpri)
);
#endif /* _TRACE_WORKQUEUE_H */
/* This part must be outside protection */
#include <trace/define_trace.h>
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