Re: [PATCH 2/5] tools lib api fs: Add tracefs mount helper functions

[Steven Rostedt]

On Mon, 26 Jan 2015 10:02:55 +0100
Jiri Olsa <jolsa@xxxxxxxxxx> wrote:

> > Note, WTF is perf checking the magic number for debugfs?? If events
> > move, even if its at the same path, this will break perf!
> 
> good question.. it's there since 2009:
>   f6bdafef2ab9 perf_counter: Add tracepoint support to perf list, perf stat
> 
> I guess we didn't want anyone to trick us with fake tracepoints ;-)

But that would be a feature not a bug. I could imagine admins doing
this for some work around.

But can we nuke that check? I don't think it's very useful.

-- Steve
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