diff options
Diffstat (limited to 'kernel/trace/trace_benchmark.c')
| -rw-r--r-- | kernel/trace/trace_benchmark.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/kernel/trace/trace_benchmark.c b/kernel/trace/trace_benchmark.c index 2bc7dc3e8ff8..e3b488825ae3 100644 --- a/kernel/trace/trace_benchmark.c +++ b/kernel/trace/trace_benchmark.c @@ -21,6 +21,8 @@ static u64 bm_stddev; static unsigned int bm_avg; static unsigned int bm_std; +static bool ok_to_run; + /* * This gets called in a loop recording the time it took to write * the tracepoint. What it writes is the time statistics of the last @@ -166,7 +168,7 @@ static int benchmark_event_kthread(void *arg) */ int trace_benchmark_reg(void) { - if (system_state != SYSTEM_RUNNING) { + if (!ok_to_run) { pr_warning("trace benchmark cannot be started via kernel command line\n"); return -EBUSY; } @@ -207,3 +209,12 @@ void trace_benchmark_unreg(void) bm_avg = 0; bm_stddev = 0; } + +static __init int ok_to_run_trace_benchmark(void) +{ + ok_to_run = true; + + return 0; +} + +early_initcall(ok_to_run_trace_benchmark); |