Cleanup: Move instrumentation/ headers to include/instrumentation/

[lttng-modules.git] / include / instrumentation / events / lttng-module / workqueue.h

diff --git a/include/instrumentation/events/lttng-module/workqueue.h b/include/instrumentation/events/lttng-module/workqueue.h
new file mode 100644 (file)
index 0000000..8ca0d6b
--- /dev/null
+++ b/include/instrumentation/events/lttng-module/workqueue.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM workqueue
+
+#if !defined(LTTNG_TRACE_WORKQUEUE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define LTTNG_TRACE_WORKQUEUE_H
+
+#include <lttng/tracepoint-event.h>
+#include <linux/workqueue.h>
+#include <linux/version.h>
+
+#ifndef _TRACE_WORKQUEUE_DEF_
+#define _TRACE_WORKQUEUE_DEF_
+
+struct worker;
+struct global_cwq;
+
+#endif
+
+LTTNG_TRACEPOINT_EVENT_CLASS(workqueue_work,
+
+       TP_PROTO(struct work_struct *work),
+
+       TP_ARGS(work),
+
+       TP_FIELDS(
+               ctf_integer_hex(void *, work, work)
+       )
+)
+
+/**
+ * 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
+ *
+ * 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).
+ */
+LTTNG_TRACEPOINT_EVENT(workqueue_queue_work,
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,9,0))
+       TP_PROTO(unsigned int req_cpu, struct pool_workqueue *pwq,
+                struct work_struct *work),
+
+       TP_ARGS(req_cpu, pwq, work),
+#else
+       TP_PROTO(unsigned int req_cpu, struct cpu_workqueue_struct *cwq,
+                struct work_struct *work),
+
+       TP_ARGS(req_cpu, cwq, work),
+#endif
+
+       TP_FIELDS(
+               ctf_integer_hex(void *, work, work)
+               ctf_integer_hex(void *, function, work->func)
+               ctf_integer(unsigned int, req_cpu, req_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.
+ */
+LTTNG_TRACEPOINT_EVENT_INSTANCE(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.
+ */
+LTTNG_TRACEPOINT_EVENT(workqueue_execute_start,
+
+       TP_PROTO(struct work_struct *work),
+
+       TP_ARGS(work),
+
+       TP_FIELDS(
+               ctf_integer_hex(void *, work, work)
+               ctf_integer_hex(void *, function, work->func)
+       )
+)
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,6,0))
+/**
+ * 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.
+ */
+LTTNG_TRACEPOINT_EVENT(workqueue_execute_end,
+
+       TP_PROTO(struct work_struct *work, work_func_t function),
+
+       TP_ARGS(work, function),
+
+       TP_FIELDS(
+               ctf_integer_hex(void *, work, work)
+               ctf_integer_hex(void *, function, function)
+       )
+)
+#else
+/**
+ * workqueue_execute_end - called immediately after the workqueue callback
+ * @work:      pointer to struct work_struct
+ *
+ * Allows to track workqueue execution.
+ */
+LTTNG_TRACEPOINT_EVENT_INSTANCE(workqueue_work, workqueue_execute_end,
+
+       TP_PROTO(struct work_struct *work),
+
+       TP_ARGS(work)
+)
+#endif
+
+#endif /*  LTTNG_TRACE_WORKQUEUE_H */
+
+/* This part must be outside protection */
+#include <lttng/define_trace.h>