LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH 0/3] tracing: Enable tracepoints early and allow printk to use them
Date: Sun, 14 Dec 2014 11:41:04 -0500
Message-ID: <20141214164104.307127356@goodmis.org> (raw)

As the merge window is still open, and this code was not as complex
as I thought it might be. I'm thinking of pushing this in now.

This will allow Thomas to debug his irq work for 3.20.

This code is not that intrusive and I'm currently running it through
all my tests (which caught the call_rcu_sched issue()). But I like to
have some more eyes on this, as I don't like to push something into
mainline this quickly. I'm doing this only because the code is simple
enough and is useful for work coming in 3.20.

I also feel that I could handle the fall out of this work over the
holidays if need be.

Steven Rostedt (Red Hat) (3):
      tracepoints: Do not use call_rcu_sched() before early_initcall()
      tracing: Move enabling tracepoints to just after mm_init()
      tracing: Add tp_printk cmdline to have tracepoints go to printk()

----
 Documentation/kernel-parameters.txt | 18 ++++++++++++++++
 include/linux/ftrace.h              |  7 +++++++
 init/main.c                         |  3 +++
 kernel/sysctl.c                     |  7 +++++++
 kernel/trace/trace.c                | 25 +++++++++++++++++++++-
 kernel/trace/trace.h                | 14 +++++++++++++
 kernel/trace/trace_events.c         | 42 +++++++++++++++++++++++++++++++++++--
 kernel/trace/trace_syscalls.c       |  7 ++-----
 kernel/tracepoint.c                 | 27 +++++++++++++++++++++++-
 9 files changed, 141 insertions(+), 9 deletions(-)

             reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-14 16:41 Steven Rostedt [this message]
2014-12-14 16:41 ` [PATCH 1/3] tracepoints: Do not use call_rcu_sched() before early_initcall() Steven Rostedt
2014-12-14 16:53   ` Steven Rostedt
2014-12-14 18:08     ` Paul E. McKenney
2014-12-14 18:15       ` Steven Rostedt
2014-12-14 18:18         ` Paul E. McKenney
2014-12-14 18:25           ` Steven Rostedt
2014-12-14 20:23             ` Paul E. McKenney
2014-12-14 17:05   ` Mathieu Desnoyers
2014-12-14 17:14     ` Steven Rostedt
2014-12-14 17:21       ` Steven Rostedt
2014-12-14 17:29         ` Mathieu Desnoyers
2014-12-14 17:44           ` Steven Rostedt
2014-12-14 18:13             ` Paul E. McKenney
2014-12-14 16:41 ` [PATCH 2/3] tracing: Move enabling tracepoints to just after mm_init() Steven Rostedt
2014-12-14 18:14   ` Paul E. McKenney
2014-12-14 18:20     ` Steven Rostedt
2014-12-14 20:26       ` Paul E. McKenney
2014-12-14 16:41 ` [PATCH 3/3] tracing: Add tp_printk cmdline to have tracepoints go to printk() Steven Rostedt
2014-12-14 17:07 ` [PATCH 0/3] tracing: Enable tracepoints early and allow printk to use them Steven Rostedt

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=20141214164104.307127356@goodmis.org \
    --to=rostedt@goodmis.org \
    --cc=akpm@linux-foundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mathieu.desnoyers@efficios.com \
    --cc=mingo@kernel.org \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    /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

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git