diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2013-08-06 18:08:41 +0200 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-08-13 21:05:12 -0400 |
| commit | 36009d07b79d2a168d6037947357d96e5d8cebe7 (patch) | |
| tree | 70e960fc660e47cfaf7546cbd7cd401a4842846f /include/trace/events/sched.h | |
| parent | d4e4ab86bcba5a72779c43dc1459f71fea3d89c8 (diff) | |
tracing/perf: Expand TRACE_EVENT(sched_stat_runtime)
To simplify the review of the next patches:
1. We are going to reimplent __perf_task/counter and embedd them
into TP_ARGS(). expand TRACE_EVENT(sched_stat_runtime) into
DECLARE_EVENT_CLASS() + DEFINE_EVENT(), this way they can use
different TP_ARGS's.
2. Change perf_trace_##call() macro to do perf_fetch_caller_regs()
right before perf_trace_buf_prepare().
This way it evaluates TP_ARGS() asap, the next patch explores
this fact.
Note: after 87f44bbc perf_trace_buf_prepare() doesn't need
"struct pt_regs *regs", perhaps it makes sense to remove this
argument. And perhaps we can teach perf_trace_buf_submit()
to accept regs == NULL and do fetch_caller_regs(CALLER_ADDR1)
in this case.
3. Cosmetic, but the typecast from "void*" buys nothing. It just
adds the noise, remove it.
Link: http://lkml.kernel.org/r/20130806160841.GA2736@redhat.com
Acked-by: Peter Zijlstra <peterz@infradead.org>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include/trace/events/sched.h')
| -rw-r--r-- | include/trace/events/sched.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index e5586caff67..249c024e67a 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -372,7 +372,7 @@ DEFINE_EVENT(sched_stat_template, sched_stat_blocked, * Tracepoint for accounting runtime (time the task is executing * on a CPU). */ -TRACE_EVENT(sched_stat_runtime, +DECLARE_EVENT_CLASS(sched_stat_runtime, TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime), @@ -401,6 +401,10 @@ TRACE_EVENT(sched_stat_runtime, (unsigned long long)__entry->vruntime) ); +DEFINE_EVENT(sched_stat_runtime, sched_stat_runtime, + TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime), + TP_ARGS(tsk, runtime, vruntime)); + /* * Tracepoint for showing priority inheritance modifying a tasks * priority. |