diff options
Diffstat (limited to 'kernel/trace/trace_sched_switch.c')
| -rw-r--r-- | kernel/trace/trace_sched_switch.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c index 798ec0dc863..c16935d3bc5 100644 --- a/kernel/trace/trace_sched_switch.c +++ b/kernel/trace/trace_sched_switch.c @@ -29,6 +29,9 @@ sched_switch_func(void *private, void *__rq, struct task_struct *prev, long disabled; int cpu; + tracing_record_cmdline(prev); + tracing_record_cmdline(next); + if (!tracer_enabled) return; @@ -63,8 +66,6 @@ sched_switch_callback(void *probe_data, void *call_data, prev = va_arg(*args, typeof(prev)); next = va_arg(*args, typeof(next)); - tracing_record_cmdline(prev); - /* * If tracer_switch_func only points to the local * switch func, it still needs the ptr passed to it. @@ -213,18 +214,26 @@ void tracing_stop_sched_switch(void) tracing_sched_unregister(); } +void tracing_start_cmdline_record(void) +{ + tracing_start_sched_switch(); +} + +void tracing_stop_cmdline_record(void) +{ + tracing_stop_sched_switch(); +} + static void start_sched_trace(struct trace_array *tr) { sched_switch_reset(tr); - atomic_inc(&trace_record_cmdline_enabled); tracer_enabled = 1; - tracing_start_sched_switch(); + tracing_start_cmdline_record(); } static void stop_sched_trace(struct trace_array *tr) { - tracing_stop_sched_switch(); - atomic_dec(&trace_record_cmdline_enabled); + tracing_stop_cmdline_record(); tracer_enabled = 0; } |