diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index d141fc98f3a88867410d6a4cd2c8f9835596c0c7..2af940433e9672371782145937108d7e0477b074 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2253,6 +2253,9 @@ tracing_read_pipe(struct file *filp, char __user *ubuf, if (signal_pending(current)) return -EINTR; + if (iter->trace != current_trace) + return 0; + /* * We block until we read something and tracing is disabled. * We still block if tracing is disabled, but we have never