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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 17:13:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 17:13:10 -0700
commit91b745016c12d440386c40fb76ab69c8e08cbc06 (patch)
tree881a26a43b3ee924c0979a54b38c7a87d79d7f1a /include/trace
parent04cc69768e7d1f40d98b79d23d203674553b4da2 (diff)
parentdaaae6b010ac0f60c9c35e481589966f9f1fcc22 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: remove in_workqueue_context() workqueue: Clarify that schedule_on_each_cpu is synchronous memory_hotplug: drop spurious calls to flush_scheduled_work() shpchp: update workqueue usage pciehp: update workqueue usage isdn/eicon: don't call flush_scheduled_work() from diva_os_remove_soft_isr() workqueue: add and use WQ_MEM_RECLAIM flag workqueue: fix HIGHPRI handling in keep_working() workqueue: add queue_work and activate_work trace points workqueue: prepare for more tracepoints workqueue: implement flush[_delayed]_work_sync() workqueue: factor out start_flush_work() workqueue: cleanup flush/cancel functions workqueue: implement alloc_ordered_workqueue() Fix up trivial conflict in fs/gfs2/main.c as per Tejun
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/workqueue.h77
1 files changed, 68 insertions, 9 deletions
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index 49682d7e9d60..7d497291c85d 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -7,38 +7,83 @@
#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_execute_start - called immediately before the workqueue callback
+ * workqueue_queue_work - called when a work gets queued
+ * @req_cpu: the requested cpu
+ * @cwq: pointer to struct cpu_workqueue_struct
* @work: pointer to struct work_struct
*
- * Allows to track workqueue execution.
+ * 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_execute_start,
+TRACE_EVENT(workqueue_queue_work,
- TP_PROTO(struct work_struct *work),
+ TP_PROTO(unsigned int req_cpu, struct cpu_workqueue_struct *cwq,
+ struct work_struct *work),
- TP_ARGS(work),
+ TP_ARGS(req_cpu, cwq, 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 = cwq->wq;
+ __entry->req_cpu = req_cpu;
+ __entry->cpu = cwq->gcwq->cpu;
),
- TP_printk("work struct %p: function %pf", __entry->work, __entry->function)
+ 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_execute_end - called immediately before the workqueue callback
+ * 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_end,
+TRACE_EVENT(workqueue_execute_start,
TP_PROTO(struct work_struct *work),
@@ -46,15 +91,29 @@ TRACE_EVENT(workqueue_execute_end,
TP_STRUCT__entry(
__field( void *, work )
+ __field( void *, function)
),
TP_fast_assign(
__entry->work = work;
+ __entry->function = work->func;
),
- TP_printk("work struct %p", __entry->work)
+ TP_printk("work struct %p: function %pf", __entry->work, __entry->function)
);
+/**
+ * workqueue_execute_end - called immediately before 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 */