[PATCH V2 1/2] tracing/timerlat: Notify new max thread latency

From: Daniel Bristot de Oliveira
Date: Wed Mar 29 2023 - 11:50:45 EST


timerlat is not reporting a new tracing_max_latency for the thread
latency. The reason is that it is not calling notify_new_max_latency()
function after the new thread latency is sampled.

Call notify_new_max_latency after computing the thread latency.

Changes from V1:
Split the patch into two patches (Steve)

Fixes: dae181349f1e ("tracing/osnoise: Support a list of trace_array *tr")
Cc: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Signed-off-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx>
---
kernel/trace/trace_osnoise.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c
index 9176bb7a9bb4..e8116094bed8 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -1738,6 +1738,8 @@ static int timerlat_main(void *data)

trace_timerlat_sample(&s);

+ notify_new_max_latency(diff);
+
timerlat_dump_stack(time_to_us(diff));

tlat->tracing_thread = false;
--
2.38.1