linux-kernel - Re: [PATCH v2 9/9] perf,tracing: Allow function tracing when !RCU

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Message-ID: <20200213223254.668a340d@oasis.local.home>
Date:   Thu, 13 Feb 2020 22:32:54 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:     Peter Zijlstra <peterz@...radead.org>,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        mingo@...nel.org, joel@...lfernandes.org,
        gregkh@...uxfoundation.org, gustavo@...eddedor.com,
        tglx@...utronix.de, paulmck@...nel.org, josh@...htriplett.org,
        mathieu.desnoyers@...icios.com, jiangshanlai@...il.com
Subject: Re: [PATCH v2 9/9] perf,tracing: Allow function tracing when !RCU

On Fri, 14 Feb 2020 11:42:45 +0900
Sergey Senozhatsky <sergey.senozhatsky.work@...il.com> wrote:

> > > +++ b/kernel/trace/trace_event_perf.c
> > > @@ -477,7 +477,7 @@ static int perf_ftrace_function_register
> > >  {
> > >  	struct ftrace_ops *ops = &event->ftrace_ops;
> > >  
> > > -	ops->flags   = FTRACE_OPS_FL_RCU;
> > > +	ops->flags   = 0;  
> > 
> > FTRACE_OPS_FL_ENABLED?  
> 
> No, never mind.

:-)

-- Steve