tracing: add sched_update_prio

[deliverable/linux.git] / include / trace / events / sched.h

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 9b90c57517a918687189933ae6920b80d251e98e..bc695e48f2d8bbfb09f5f2101877d8e37a660cce 100644 (file)
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -8,6 +8,34 @@
 #include <linux/tracepoint.h>
 #include <linux/binfmts.h>
 
+#define SCHEDULING_POLICY                              \
+       EM( SCHED_NORMAL,       "SCHED_NORMAL")         \
+       EM( SCHED_FIFO,         "SCHED_FIFO")           \
+       EM( SCHED_RR,           "SCHED_RR")             \
+       EM( SCHED_BATCH,        "SCHED_BATCH")          \
+       EM( SCHED_IDLE,         "SCHED_IDLE")           \
+       EMe(SCHED_DEADLINE,     "SCHED_DEADLINE")
+
+/*
+ * First define the enums in the above macros to be exported to userspace
+ * via TRACE_DEFINE_ENUM().
+ */
+#undef EM
+#undef EMe
+#define EM(a, b)       TRACE_DEFINE_ENUM(a);
+#define EMe(a, b)      TRACE_DEFINE_ENUM(a);
+
+SCHEDULING_POLICY
+
+/*
+ * Now redefine the EM() and EMe() macros to map the enums to the strings
+ * that will be printed in the output.
+ */
+#undef EM
+#undef EMe
+#define EM(a, b)       {a, b},
+#define EMe(a, b)      {a, b}
+
 /*
  * Tracepoint for calling kthread_stop, performed to end a kthread:
  */
@@ -562,6 +590,46 @@ TRACE_EVENT(sched_wake_idle_without_ipi,
 
        TP_printk("cpu=%d", __entry->cpu)
 );
+
+/*
+ * Tracepoint for showing scheduling priority changes.
+ */
+TRACE_EVENT(sched_update_prio,
+
+       TP_PROTO(struct task_struct *tsk),
+
+       TP_ARGS(tsk),
+
+       TP_STRUCT__entry(
+               __array( char,  comm,   TASK_COMM_LEN   )
+               __field( pid_t, pid                     )
+               __field( unsigned int,  policy          )
+               __field( int,   nice                    )
+               __field( unsigned int,  rt_priority     )
+               __field( u64,   dl_runtime              )
+               __field( u64,   dl_deadline             )
+               __field( u64,   dl_period               )
+       ),
+
+       TP_fast_assign(
+               memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+               __entry->pid            = tsk->pid;
+               __entry->policy         = tsk->policy;
+               __entry->nice           = task_nice(tsk);
+               __entry->rt_priority    = tsk->rt_priority;
+               __entry->dl_runtime     = tsk->dl.dl_runtime;
+               __entry->dl_deadline    = tsk->dl.dl_deadline;
+               __entry->dl_period      = tsk->dl.dl_period;
+       ),
+
+       TP_printk("comm=%s pid=%d, policy=%s, nice=%d, rt_priority=%u, "
+                       "dl_runtime=%Lu, dl_deadline=%Lu, dl_period=%Lu",
+                       __entry->comm, __entry->pid,
+                       __print_symbolic(__entry->policy, SCHEDULING_POLICY),
+                       __entry->nice, __entry->rt_priority,
+                       __entry->dl_runtime, __entry->dl_deadline,
+                       __entry->dl_period)
+);
 #endif /* _TRACE_SCHED_H */
 
 /* This part must be outside protection */