From: Tejun Heo <tj@kernel.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Pierre Tardy <tardyp@gmail.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Thomas Renninger <trenn@suse.de>,
Jean Pihet <jean.pihet@newoldbits.com>,
linux-trace-users@vger.kernel.org,
linux-pm@lists.linux-foundation.org,
linux-perf-users@vger.kernel.org, mingo@elte.hu,
arjan@linux.intel.com, rjw@sisk.pl, linux-omap@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Kevin Hilman <khilman@deeprootsystems.com>,
Steven Rostedt <rostedt@goodmis.org>,
Frank Eigler <fche@redhat.com>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: PATCH [0/4] perf: clean-up of power events API
Date: Fri, 08 Oct 2010 10:14:40 +0200 [thread overview]
Message-ID: <4CAED2F0.9080801@kernel.org> (raw)
In-Reply-To: <20101007155816.GA5351@nowhere>
Hello,
On 10/07/2010 05:58 PM, Frederic Weisbecker wrote:
> I really feel uncomfortable with this tracepoint/ABI problem....
> Mathieu suggested we start a user library that could handle these
> changes when they are really necessary.
>
> Thoughts?
>
> (Adding Tejun in Cc).
Given that tracepoints are supposed to make internal operation
visible. I don't think it's a good idea to make it part of fixed ABI.
Maybe some core part can be put in stone but I think things like
internal workqueue implementation should be changeable without
worrying about ABI issues.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-10-08 8:16 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-04 15:20 PATCH [0/4] perf: clean-up of power events API Jean Pihet
2010-10-04 15:20 ` [PATCH 1/4] perf: cleanup " Jean Pihet
2010-10-04 15:20 ` Jean Pihet
2010-10-04 15:20 ` [PATCH 2/4] perf: add OMAP support for the new power events Jean Pihet
2010-10-04 15:20 ` Jean Pihet
2010-10-04 19:45 ` Thomas Renninger
2010-10-04 19:45 ` Thomas Renninger
2010-10-04 15:21 ` [PATCH 3/4] perf: add calls to suspend trace point Jean Pihet
2010-10-04 15:21 ` Jean Pihet
2010-10-04 22:52 ` Rafael J. Wysocki
2010-10-04 22:52 ` Rafael J. Wysocki
2010-10-04 15:21 ` [PATCH 4/4] perf: provide a DEPRECTAED power trace API to user space Jean Pihet
2010-10-04 16:10 ` Frank Ch. Eigler
2010-10-04 16:10 ` Frank Ch. Eigler
2010-10-04 16:47 ` Jean Pihet
2010-10-04 16:47 ` Jean Pihet
2010-10-04 15:21 ` Jean Pihet
2010-10-06 21:34 ` PATCH [0/4] perf: clean-up of power events API Thomas Renninger
2010-10-07 15:08 ` Mathieu Desnoyers
2010-10-07 15:08 ` Mathieu Desnoyers
2010-10-07 15:23 ` Pierre Tardy
2010-10-07 15:45 ` Steven Rostedt
2010-10-07 15:45 ` Steven Rostedt
2010-10-07 15:58 ` Frederic Weisbecker
2010-10-07 16:10 ` Pierre Tardy
2010-10-07 16:10 ` Pierre Tardy
2010-10-08 8:14 ` Tejun Heo
2010-10-08 8:14 ` Tejun Heo [this message]
2010-10-08 8:38 ` Ingo Molnar
2010-10-08 8:38 ` Ingo Molnar
2010-10-08 13:17 ` Arjan van de Ven
2010-10-08 13:41 ` Mathieu Desnoyers
2010-10-08 13:41 ` Mathieu Desnoyers
2010-10-08 16:22 ` Arjan van de Ven
2010-10-08 16:22 ` Arjan van de Ven
2010-10-08 17:21 ` Steven Rostedt
2010-10-08 17:21 ` Steven Rostedt
2010-10-08 17:49 ` Frank Ch. Eigler
2010-10-08 17:49 ` Frank Ch. Eigler
2010-10-08 18:11 ` Steven Rostedt
2010-10-08 18:11 ` Steven Rostedt
2010-10-08 17:32 ` Mathieu Desnoyers
2010-10-08 17:32 ` Mathieu Desnoyers
2010-10-09 6:28 ` Ingo Molnar
2010-10-09 8:14 ` Pierre Tardy
2010-10-09 8:14 ` Pierre Tardy
2010-10-09 18:36 ` Linus Torvalds
2010-10-09 21:15 ` Steven Rostedt
2010-10-09 21:15 ` Steven Rostedt
2010-10-09 23:20 ` Linus Torvalds
2010-10-10 1:39 ` Steven Rostedt
2010-10-10 1:39 ` Steven Rostedt
2010-10-10 6:41 ` Peter Zijlstra
2010-10-10 6:41 ` Peter Zijlstra
2010-10-10 15:11 ` Steven Rostedt
2010-10-10 15:11 ` Steven Rostedt
2010-10-18 12:15 ` Jean Pihet
2010-10-18 12:15 ` Jean Pihet
2010-10-09 18:36 ` Linus Torvalds
2010-10-09 16:19 ` Arjan van de Ven
2010-10-09 16:19 ` Arjan van de Ven
2010-10-09 21:34 ` Steven Rostedt
2010-10-09 21:34 ` Steven Rostedt
2010-10-10 12:19 ` Ingo Molnar
2010-10-19 11:31 ` Thomas Renninger
2010-10-19 11:45 ` Ingo Molnar
2010-10-19 11:47 ` Peter Zijlstra
2010-10-19 11:47 ` Peter Zijlstra
2010-10-19 11:52 ` Ingo Molnar
2010-10-19 11:52 ` Ingo Molnar
2010-10-19 13:27 ` Arjan van de Ven
2010-10-19 13:50 ` Ingo Molnar
2010-10-19 13:50 ` Ingo Molnar
2010-10-19 13:52 ` Arjan van de Ven
2010-10-19 13:52 ` Arjan van de Ven
2010-10-19 14:51 ` Ingo Molnar
2010-10-19 14:51 ` Ingo Molnar
2010-10-19 13:27 ` Arjan van de Ven
2010-10-19 11:45 ` Ingo Molnar
2010-10-19 11:31 ` Thomas Renninger
2010-10-10 12:19 ` Ingo Molnar
2010-10-09 6:28 ` Ingo Molnar
2010-10-08 13:17 ` Arjan van de Ven
2010-10-07 15:58 ` Frederic Weisbecker
2010-10-07 15:23 ` Pierre Tardy
2010-10-07 15:23 ` Pierre Tardy
2010-10-07 15:45 ` Jean Pihet
2010-10-07 15:45 ` Jean Pihet
2010-10-07 15:49 ` Thomas Renninger
2010-10-07 15:49 ` Thomas Renninger
2010-10-07 15:56 ` Jean Pihet
2010-10-07 15:56 ` Jean Pihet
2010-10-06 21:34 ` Thomas Renninger
-- strict thread matches above, loose matches on Subject: below --
2010-10-04 15:20 Jean Pihet
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