From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Ingo Molnar <mingo@elte.hu>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
LKML <linux-kernel@vger.kernel.org>,
Tom Zanussi <tzanussi@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Li Zefan <lizf@cn.fujitsu.com>
Subject: Re: [GIT PULL v2] bkl tracepoints + filter regex support
Date: Thu, 24 Sep 2009 22:30:00 +0200 [thread overview]
Message-ID: <1253824200.18939.173.camel@laptop> (raw)
In-Reply-To: <20090924201622.GA15459@elte.hu>
On Thu, 2009-09-24 at 22:16 +0200, Ingo Molnar wrote:
> There's one thing Peter noticed: this is not C syntax anymore. It would
> be really nice to keep filter expressions a subset of C.
Also:
> This patch provides basic support for regular expressions in filters.
>
> It supports the following types of regexp:
>
> - *match_beginning
> - *match_middle*
> - match_end*
> - !don't match
>
> Example:
> cd /debug/tracing/events/bkl/lock_kernel
> echo 'file == "*reiserfs*"' > filter
> echo 1 > enable
It says regex, but its not.
Regex would look like: "^.*reiserfs.*$", or simply "reiserfs"
What you implemented is called glob-matching.
If you want to keep this C syntax, you could consider something like:
glob_match(file, "*reiserfs*")
or something.
next prev parent reply other threads:[~2009-09-24 20:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-24 19:49 [GIT PULL v2] bkl tracepoints + filter regex support Frederic Weisbecker
2009-09-24 19:49 ` [PATCH 1/5 v2] tracing/bkl: Add bkl ftrace events Frederic Weisbecker
2009-09-24 19:49 ` [PATCH 2/5 v2] tracing/filters: Cleanup useless headers Frederic Weisbecker
2009-09-24 19:49 ` [PATCH 3/5 v2] tracing/event: Cleanup the useless dentry variable Frederic Weisbecker
2009-09-24 19:49 ` [PATCH 4/5 v2] tracing/filters: Provide basic regex support Frederic Weisbecker
2009-09-25 8:13 ` Andrey Panin
2009-09-25 8:16 ` Frederic Weisbecker
2009-09-24 19:49 ` [PATCH 5/5] tracing/filters: Unify the regex parsing helpers Frederic Weisbecker
2009-09-24 20:15 ` [GIT PULL v2] bkl tracepoints + filter regex support Ingo Molnar
2009-09-24 20:16 ` Ingo Molnar
2009-09-24 20:22 ` Ingo Molnar
2009-09-25 7:55 ` Frederic Weisbecker
2009-09-24 20:30 ` Peter Zijlstra [this message]
2009-09-24 20:44 ` Frederic Weisbecker
2009-09-24 20:51 ` Peter Zijlstra
2009-09-24 21:36 ` Frederic Weisbecker
2009-09-25 8:19 ` Peter Zijlstra
2009-09-25 9:12 ` Frederic Weisbecker
2009-09-25 9:40 ` Peter Zijlstra
2009-09-25 10:38 ` Frederic Weisbecker
2009-09-26 10:44 ` Steven Rostedt
2009-10-03 11:36 ` Frederic Weisbecker
2009-09-26 15:47 ` Frank Ch. Eigler
2009-10-03 11:49 ` Frederic Weisbecker
2009-09-26 10:30 ` Steven Rostedt
2009-09-24 20:33 ` Frederic Weisbecker
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