add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/kernel/trace/trace_events_synth.c
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@@ -1363,7 +1363,6 @@
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 	mutex_unlock(&event_mutex);
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 	if (mod) {
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-		mutex_lock(&trace_types_lock);
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 		/*
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 		 * It is safest to reset the ring buffer if the module
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 		 * being unloaded registered any events that were
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@@ -1375,7 +1374,6 @@
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 		 * occur.
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 		 */
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 		tracing_reset_all_online_cpus();
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-		mutex_unlock(&trace_types_lock);
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 	}
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 	return ret;