mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@elte.hu>
To: Tim Abbott <tabbott@MIT.EDU>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
	Steven Rostedt <rostedt@goodmis.org>,
	linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Anders Kaseorg <andersk@MIT.EDU>,
	Jeffrey B Arnold <jbarnold@MIT.EDU>
Subject: Re: [PATCH 1/5] ftrace: use module notifier for function tracer
Date: Wed, 22 Apr 2009 11:16:45 +0200	[thread overview]
Message-ID: <20090422091645.GB18226@elte.hu> (raw)
In-Reply-To: <alpine.DEB.1.10.0904191437250.31802@vinegar-pot.mit.edu>


* Tim Abbott <tabbott@MIT.EDU> wrote:

> On Sun, 19 Apr 2009, Rusty Russell wrote:
> 
> > I think you need to do something else in general.  Share the module_mutex for
> > the ftrace code?  The ksplice guys have a similar issue, so maybe we should
> > generalize this into a "kernel_text" mutex?
> 
> Yes, a kernel_text mutex is on my list of things to propose once 
> Ksplice gets merged.

too late :-) These bits were written 1.5 months ago and are already 
upstream:

3945dab: tracing, Text Edit Lock - SMP alternatives support
4460fda: tracing, Text Edit Lock - kprobes architecture independent support
0e39ac4: tracing, Text Edit Lock - Architecture Independent Code

I suspect ksplice could make use of text_mutex?

	Ingo

  parent reply	other threads:[~2009-04-22  9:17 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-16  2:18 [PATCH 0/5] [GIT PULL] updates for tip Steven Rostedt
2009-04-16  2:18 ` [PATCH 1/5] ftrace: use module notifier for function tracer Steven Rostedt
2009-04-16 15:36   ` Frederic Weisbecker
2009-04-16 15:53     ` Steven Rostedt
2009-04-17 11:44   ` Steven Rostedt
2009-04-19 11:25   ` Rusty Russell
2009-04-20 13:57     ` Steven Rostedt
2009-04-21  5:15       ` Rusty Russell
2009-04-21 13:13         ` Steven Rostedt
2009-04-21 13:58           ` Ingo Molnar
2009-04-21 17:51     ` Tim Abbott
2009-04-21 18:17       ` Steven Rostedt
2009-04-21 18:47         ` Tim Abbott
2009-04-22  9:16       ` Ingo Molnar [this message]
2009-04-22 22:20         ` Tim Abbott
2009-04-22 22:57           ` Masami Hiramatsu
2009-04-23 19:40             ` Anders Kaseorg
2009-04-23 19:57               ` Mathieu Desnoyers
2009-04-23 22:31                 ` Tim Abbott
2009-04-24  3:11                   ` Masami Hiramatsu
2009-04-23 20:06               ` Masami Hiramatsu
2009-04-16  2:18 ` [PATCH 2/5] tracing/events: add startup tests for events Steven Rostedt
2009-04-16  8:39   ` [PATCH] tracing: add #include <linux/delay.h> to fix build failure in test_work() Ingo Molnar
2009-04-16 14:08     ` Steven Rostedt
2009-04-17  0:30       ` Ingo Molnar
2009-04-16 15:41   ` [PATCH 2/5] tracing/events: add startup tests for events Frederic Weisbecker
2009-04-16 15:51     ` Steven Rostedt
2009-04-16 16:02   ` Frederic Weisbecker
2009-04-16  2:18 ` [PATCH 3/5] tracing/events: add rcu locking around trace event prints Steven Rostedt
2009-04-17 14:08   ` Steven Rostedt
2009-04-17 15:20     ` Jeremy Fitzhardinge
2009-04-17 15:42       ` Steven Rostedt
2009-04-17 23:53         ` Jeremy Fitzhardinge
2009-04-17 16:18     ` Theodore Tso
2009-04-17 16:32       ` Jeremy Fitzhardinge
2009-04-17 16:41         ` Steven Rostedt
2009-05-07  2:10   ` Steven Rostedt
2009-05-07 11:32     ` Ingo Molnar
2009-05-07 13:10       ` Steven Rostedt
2009-04-16  2:18 ` [PATCH 4/5] tracing/events/ring-buffer: expose format of ring buffer headers to users Steven Rostedt
2009-04-16  2:18 ` [PATCH 5/5] tracing: add saved_cmdlines file to show cached task comms Steven Rostedt
2009-04-16 15:54   ` Frederic Weisbecker
2009-04-16 15:58     ` Steven Rostedt
2009-04-16 16:05       ` Frederic Weisbecker
2009-04-16  9:51 ` [PATCH 0/5] [GIT PULL] updates for tip Ingo Molnar
2009-04-16  9:53   ` Ingo Molnar
2009-04-16 13:52   ` Steven Rostedt
2009-04-16 16:12     ` Ingo Molnar
2009-04-16 16:22       ` Steven Rostedt
2009-04-17  0:29         ` Ingo Molnar
2009-04-16 16:30       ` Ingo Molnar

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20090422091645.GB18226@elte.hu \
    --to=mingo@elte.hu \
    --cc=akpm@linux-foundation.org \
    --cc=andersk@MIT.EDU \
    --cc=fweisbec@gmail.com \
    --cc=jbarnold@MIT.EDU \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterz@infradead.org \
    --cc=rostedt@goodmis.org \
    --cc=rusty@rustcorp.com.au \
    --cc=tabbott@MIT.EDU \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®