linux-kernel - Re: [GIT PULL v2] bkl tracepoints + filter regex support

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Date:	Thu, 24 Sep 2009 22:51:29 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>,
	Tom Zanussi <tzanussi@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Li Zefan <lizf@...fujitsu.com>
Subject: Re: [GIT PULL v2] bkl tracepoints + filter regex support

On Thu, 2009-09-24 at 22:44 +0200, Frederic Weisbecker wrote:

> I don't quite understand why.
> 
> Typing file == "*reiserfs*" looks more intuitive.
> 
> It's true that the filters should stay tight to the C syntax,
> but following this guideline up to the point that we are forced to
> use function expressions to do something that can be expressed
> much more easily and more intuitively (IMHO), that all sounds like
> an overkill.
> 
> The use of glob is a very primary need for filters, it's
> so much a basic requirement for it that it should be native
> in its language.

The thing that my fingers know is awk syntax:

 file ~ /reiserfs/

I'd very much prefer to keep == for strict equality, however the above
requires actual regex bits.

Remember, there are no second chances for the filter syntax anymore.

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