From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1757203AbcJTCIK (ORCPT <rfc822;w@1wt.eu>);
        Wed, 19 Oct 2016 22:08:10 -0400
Received: from mail.kernel.org ([198.145.29.136]:44220 "EHLO mail.kernel.org"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1757049AbcJTCIJ (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 19 Oct 2016 22:08:09 -0400
Date: Thu, 20 Oct 2016 11:07:52 +0900
From: Masami Hiramatsu <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Shuah Khan <shuah@kernel.org>, linux-kernel@vger.kernel.org,
        Ingo Molnar <mingo@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
        Tom Zanussi <tom.zanussi@linux.intel.com>,
        linux-kselftest@vger.kernel.org
Subject: Re: [PATCH 1/5] ftrace: Support full glob matching
Message-Id: <20161020110752.460115c2a5dcbb719de29423@kernel.org>
In-Reply-To: <20161019092057.203b7b12@gandalf.local.home>
References: <147685280526.8760.8021110184607782896.stgit@devbox>
        <147685281662.8760.8331675841970536201.stgit@devbox>
        <20161019092057.203b7b12@gandalf.local.home>
X-Mailer: Sylpheed 3.5.0 (GTK+ 2.24.31; x86_64-redhat-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Wed, 19 Oct 2016 09:20:57 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:

> On Wed, 19 Oct 2016 13:53:36 +0900
> Masami Hiramatsu <mhiramat@kernel.org> wrote:
> 
> > Use glob_match() to support flexible glob wildcards (*,?)
> > and character classes ([) for ftrace.
> > Since the full glob matching is slower than the current
> > partial matching routines(*pat, pat*, *pat*), this leaves
> > those routines and just add MATCH_GLOB for complex glob
> > expression.
> > 
> > e.g.
> > ----
> > [root@localhost tracing]# echo 'sched*group' > set_ftrace_filter
> > [root@localhost tracing]# cat set_ftrace_filter
> > sched_free_group
> > sched_change_group
> > sched_create_group
> > sched_online_group
> > sched_destroy_group
> > sched_offline_group
> > [root@localhost tracing]# echo '[Ss]y[Ss]_*' > set_ftrace_filter
> > [root@localhost tracing]# head set_ftrace_filter
> > sys_arch_prctl
> > sys_rt_sigreturn
> > sys_ioperm
> > SyS_iopl
> > sys_modify_ldt
> > SyS_mmap
> > SyS_set_thread_area
> > SyS_get_thread_area
> > SyS_set_tid_address
> > sys_fork
> > ----
> 
> Hi Masami,
> 
> Is this any different than your last patch, as I already pulled it into
> my queue. I haven't been able to test it much, as I found that 4.9-rc1
> is failing my tests, and I can't add new code to linux-next till 4.9 is
> stable.

This patch is completely same as the last patch. If you already queued it,
please ignore this [1/5].

And OK, what kind of tests are failed on 4.9-rc1? I though a possible
kernel freeze in 4.8 when I ran ftracetest, but it seemed disappeared
in 4.9-rc1.

Thanks,


-- 
Masami Hiramatsu <mhiramat@kernel.org>