diff options
| author | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2025-11-19 17:32:05 +0900 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-11-26 15:13:29 -0500 |
| commit | 23c0e9cc76bf39c10a1c1927345dfdbc54947a97 (patch) | |
| tree | 58158baffe52d0bea6b6b0731ad09a1efa64594e /kernel/trace | |
| parent | 7a6735cc9b4c0b5cd6fa00c32217db8929a8c18f (diff) | |
tracing: Show the tracer options in boot-time created instance
Since tracer_init_tracefs_work_func() only updates the tracer options
for the global_trace, the instances created by the kernel cmdline
do not have those options.
Fix to update tracer options for those boot-time created instances
to show those options.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://patch.msgid.link/176354112555.2356172.3989277078358802353.stgit@mhiramat.tok.corp.google.com
Fixes: 428add559b69 ("tracing: Have tracer option be instance specific")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/trace.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 59cd4ed8af6d..032bdedca5d9 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -10228,11 +10228,14 @@ static __init int __update_tracer_options(struct trace_array *tr) return ret; } -static __init void update_tracer_options(struct trace_array *tr) +static __init void update_tracer_options(void) { + struct trace_array *tr; + guard(mutex)(&trace_types_lock); tracer_options_updated = true; - __update_tracer_options(tr); + list_for_each_entry(tr, &ftrace_trace_arrays, list) + __update_tracer_options(tr); } /* Must have trace_types_lock held */ @@ -10934,7 +10937,7 @@ static __init void tracer_init_tracefs_work_func(struct work_struct *work) create_trace_instances(NULL); - update_tracer_options(&global_trace); + update_tracer_options(); } static __init int tracer_init_tracefs(void) |