linux-kernel - Re: change uprobe_events default ? Was: [PATCH] perf: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE

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Message-ID: <20170316010651.GP12825@kernel.org>
Date:   Wed, 15 Mar 2017 22:06:51 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     Anton Blanchard <anton@...abs.org>,
        David Miller <davem@...emloft.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Hemant Kumar <hemant@...ux.vnet.ibm.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
        Wang Nan <wangnan0@...wei.com>,
        Namhyung Kim <namhyung@...nel.org>,
        David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...nel.org>,
        alexander.shishkin@...ux.intel.com, sparclinux@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: change uprobe_events default ? Was: [PATCH] perf: Rename
 CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS

Added more people to the CC list.

Em Wed, Mar 15, 2017 at 05:58:19PM -0700, Alexei Starovoitov escreveu:
> On Thu, Feb 16, 2017 at 05:00:50PM +1100, Anton Blanchard wrote:
> > We have uses of CONFIG_UPROBE_EVENT and CONFIG_KPROBE_EVENT as
> > well as CONFIG_UPROBE_EVENTS and CONFIG_KPROBE_EVENTS. Consistently
> > use the plurals.
 
> this rename made me notice that UPROBE_EVENTS still defaults to 'n'.
> this is key feature that all distros enable, so having default 'n'
> is kinda saying that it's not something that should be turned on
> or used widely. which is obviously not the case.
> imo it's time to change it to 'y'.
> Thoughts?

Agreed, I also found it strange that it was disabled by default when I
recently did a 'make oldconfig' :-\

- Arnaldo