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bd7bdd43dc
Move worklist and all worker management fields from global_cwq into the new struct worker_pool. worker_pool points back to the containing gcwq. worker and cpu_workqueue_struct are updated to point to worker_pool instead of gcwq too. This change is mechanical and doesn't introduce any functional difference other than rearranging of fields and an added level of indirection in some places. This is to prepare for multiple pools per gcwq. v2: Comment typo fixes as suggested by Namhyung. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org>
122 lines
2.7 KiB
C
122 lines
2.7 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM workqueue
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#if !defined(_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_WORKQUEUE_H
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#include <linux/tracepoint.h>
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#include <linux/workqueue.h>
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DECLARE_EVENT_CLASS(workqueue_work,
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TP_PROTO(struct work_struct *work),
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TP_ARGS(work),
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TP_STRUCT__entry(
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__field( void *, work )
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),
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TP_fast_assign(
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__entry->work = work;
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),
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TP_printk("work struct %p", __entry->work)
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);
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/**
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* workqueue_queue_work - called when a work gets queued
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* @req_cpu: the requested cpu
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* @cwq: pointer to struct cpu_workqueue_struct
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* @work: pointer to struct work_struct
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*
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* This event occurs when a work is queued immediately or once a
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* delayed work is actually queued on a workqueue (ie: once the delay
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* has been reached).
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*/
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TRACE_EVENT(workqueue_queue_work,
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TP_PROTO(unsigned int req_cpu, struct cpu_workqueue_struct *cwq,
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struct work_struct *work),
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TP_ARGS(req_cpu, cwq, work),
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TP_STRUCT__entry(
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__field( void *, work )
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__field( void *, function)
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__field( void *, workqueue)
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__field( unsigned int, req_cpu )
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__field( unsigned int, cpu )
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),
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TP_fast_assign(
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__entry->work = work;
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__entry->function = work->func;
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__entry->workqueue = cwq->wq;
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__entry->req_cpu = req_cpu;
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__entry->cpu = cwq->pool->gcwq->cpu;
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),
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TP_printk("work struct=%p function=%pf workqueue=%p req_cpu=%u cpu=%u",
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__entry->work, __entry->function, __entry->workqueue,
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__entry->req_cpu, __entry->cpu)
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);
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/**
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* workqueue_activate_work - called when a work gets activated
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* @work: pointer to struct work_struct
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*
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* This event occurs when a queued work is put on the active queue,
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* which happens immediately after queueing unless @max_active limit
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* is reached.
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*/
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DEFINE_EVENT(workqueue_work, workqueue_activate_work,
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TP_PROTO(struct work_struct *work),
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TP_ARGS(work)
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);
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/**
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* workqueue_execute_start - called immediately before the workqueue callback
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* @work: pointer to struct work_struct
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*
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* Allows to track workqueue execution.
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*/
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TRACE_EVENT(workqueue_execute_start,
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TP_PROTO(struct work_struct *work),
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TP_ARGS(work),
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TP_STRUCT__entry(
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__field( void *, work )
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__field( void *, function)
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),
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TP_fast_assign(
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__entry->work = work;
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__entry->function = work->func;
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),
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TP_printk("work struct %p: function %pf", __entry->work, __entry->function)
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);
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/**
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* workqueue_execute_end - called immediately after the workqueue callback
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* @work: pointer to struct work_struct
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*
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* Allows to track workqueue execution.
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*/
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DEFINE_EVENT(workqueue_work, workqueue_execute_end,
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TP_PROTO(struct work_struct *work),
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TP_ARGS(work)
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);
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#endif /* _TRACE_WORKQUEUE_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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