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Message-ID: <20140411145524.6fbda7bb@gandalf.local.home> Date: Fri, 11 Apr 2014 14:55:24 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: Naoya Horiguchi <n-horiguchi@...jp.nec.com> Cc: namhyung.kim@....com, linux-kernel@...r.kernel.org Subject: Re: ftrace: reading set_graph_notrace returns "#### all functions enabled ####" On Fri, 11 Apr 2014 14:24:17 -0400 Naoya Horiguchi <n-horiguchi@...jp.nec.com> wrote: > Hi, > > I report a minor issue of set_graph_notrace. > The default value of set_graph_notrace is void (so no function is excluded,) > but when we read the file, we get "#### all functions enabled ####" like below: > > [root@...t tracing]# echo "" > set_graph_notrace > [root@...t tracing]# cat set_graph_notrace > #### all functions enabled #### > > This does not happen for set_ftrace_notrace: > > [root@...t tracing]# echo "" > set_ftrace_notrace > [root@...t tracing]# cat set_ftrace_notrace > [root@...t tracing]# > > This is not critical but confusing, so it would be nice if fixed. Ah, I would say they both are wrong. The set_graph_notrace is rather new, and probably copied and pasted incorrectly. But having nothing printed may not be the best thing to show. I think both should be switched to #### no functions disabled #### But this can be done in my 3.16 queue. Thanks for the report, -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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