From: Steven Rostedt <rostedt@goodmis.org>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Shuah Khan <shuah.kh@samsung.com>, Ingo Molnar <mingo@kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH ftrace/for-next ] tracing/kprobes: Replace startup test with selftest script
Date: Tue, 7 Oct 2014 22:20:50 -0400 [thread overview]
Message-ID: <20141007222050.59e076e7@gandalf.local.home> (raw)
In-Reply-To: <54349A95.6040309@hitachi.com>
On Wed, 08 Oct 2014 10:59:49 +0900
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> wrote:
> > Both of these have valid reasons staying in the kernel and I don't see
> > either as dead weight. Is there a maintenance issue with keeping it in
> > the kernel? There doesn't seem to be much done to it. It seems
> > untouched for over a year, and that was to add support for multiple
> > buffers.
>
> Keeping it has no issue. But it's much easier to expand the test
> in userspace than the kernel code. I'll add more feature tests in
> kselftest, but not in this code. This means that this startup
> test code will get behind.
And that's exactly what I expect you to do. I have lots of tests to
test ftrace, but what gets tested at kernel startup is just a bare
minimum, and that's all it needs to be. I don't expect you to extend
the start up self tests. That should be only done for the scripts. But
we have this start up test and I don't see a reason to get rid of it.
If anything, it gives me warm fuzzies in my stomach when I see it
pass :-)
The start up tests in the kernel should really just be the basic of the
basic tests, that give a small sanity check that a change didn't
totally screw things up.
Can you send a new patch that doesn't remove the start up test?
Thanks!
-- Steve
next prev parent reply other threads:[~2014-10-08 2:21 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-06 11:48 [PATCH ftrace/for-next ] tracing/kprobes: Replace startup test with selftest script Masami Hiramatsu
2014-10-06 22:33 ` Steven Rostedt
2014-10-07 6:00 ` Masami Hiramatsu
2014-10-07 16:05 ` Steven Rostedt
2014-10-08 1:59 ` Masami Hiramatsu
2014-10-08 2:20 ` Steven Rostedt [this message]
2014-10-08 4:02 ` Masami Hiramatsu
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