tmakin/tegra-linux-noble
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rtla: Add trace_instance_stop

Browse Source 
BugLink: https://bugs.launchpad.net/bugs/2114239

commit e879b5dcf8d044f3865a32d95cc5b213f314c54f upstream.

Support not only turning trace on for the timerlat tracer, but also
turning it off.

This will be used in subsequent patches to stop the timerlat tracer
without also wiping the trace buffer.

Cc: stable@vger.kernel.org
Cc: John Kacur <jkacur@redhat.com>
Cc: Luis Goncalves <lgoncalv@redhat.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/20250116144931.649593-2-tglozar@redhat.com
Signed-off-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Noah Wager <noah.wager@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
This commit is contained in:
Tomas Glozar
2025-01-16 15:49:27 +01:00
committed by Mehmet Basaran
parent d40095e6f5
commit d555fb8739
2 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tools/tracing/rtla/src/trace.c
+8
View File
@@ -196,6 +196,14 @@ int trace_instance_start(struct trace_instance *trace)
return tracefs_trace_on(trace->inst);
}
/*
* trace_instance_stop - stop tracing a given rtla instance
*/
int trace_instance_stop(struct trace_instance *trace)
{
return tracefs_trace_off(trace->inst);
}
/*
* trace_events_free - free a list of trace events
*/
tools/tracing/rtla/src/trace.h
+1
View File
@@ -21,6 +21,7 @@ struct trace_instance {
int trace_instance_init(struct trace_instance *trace, char *tool_name);
int trace_instance_start(struct trace_instance *trace);
int trace_instance_stop(struct trace_instance *trace);
void trace_instance_destroy(struct trace_instance *trace);
struct trace_seq *get_trace_seq(void);