[GIT PULL arm] Use _rcuidle tracepoints to allow tracing from idle

[GIT PULL arm] Use _rcuidle tracepoints to allow tracing from idle

[Paul E. McKenney]

Hello, Ingo,

This series changes a number of event tracepoints to their _rcuidle() form
to allow use from idle without lockdep-RCU complaints, a straightforward
modification that has been successfully applied many times.  These splats
were found in testing by Guenter Roeck and Tony Lindgren, who have
both successfully tested the full series.  Tony asked that I carry these
in -rcu:

	http://lkml.kernel.org/g/20160426213630.GV5995@atomide.com

These have been posted to LKML, CCing relevant maintainers, who have
not objected to the proposed changes:

	http://lkml.kernel.org/g/20160516184844.GA20144@linux.vnet.ibm.com

These maintainers are also CCed on this pull request.

They have also been subjected to 0day Test Robot and -next testing.

							Thanx, Paul

Re: [GIT PULL arm] Use _rcuidle tracepoints to allow tracing from idle

[Paul E. McKenney]

On Thu, May 26, 2016 at 09:26:06AM -0700, Paul E. McKenney wrote:
> Hello, Ingo,
> 
> This series changes a number of event tracepoints to their _rcuidle() form
> to allow use from idle without lockdep-RCU complaints, a straightforward
> modification that has been successfully applied many times.  These splats
> were found in testing by Guenter Roeck and Tony Lindgren, who have
> both successfully tested the full series.  Tony asked that I carry these
> in -rcu:
> 
> 	http://lkml.kernel.org/g/20160426213630.GV5995@atomide.com
> 
> These have been posted to LKML, CCing relevant maintainers, who have
> not objected to the proposed changes:
> 
> 	http://lkml.kernel.org/g/20160516184844.GA20144@linux.vnet.ibm.com
> 
> These maintainers are also CCed on this pull request.
> 
> They have also been subjected to 0day Test Robot and -next testing.

And this time actually including the pull request...  :-/

							Thanx, Paul

These changes are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo

for you to fetch changes up to e7c38dda94b23965a3eb46ef4656bb8cb921933d:

  arm: Use _rcuidle suffix to allow clk_core_enable() to used from idle (2016-05-18 11:55:29 -0700)

----------------------------------------------------------------
Paul E. McKenney (6):
      arm: Use _rcuidle tracepoint to allow use from idle
      arm: Use _rcuidle for suspend/resume tracepoints
      arm: Add _rcuidle tracepoints to allow clk_core_disable() use from idle
      arm: Add _rcuidle suffix to allow rpm_idle() use from idle
      arm: Add _rcuidle suffix to allow rpm_resume() to be called from idle
      arm: Use _rcuidle suffix to allow clk_core_enable() to used from idle

 arch/arm/kernel/smp.c             |  2 +-
 arch/arm/mach-omap2/powerdomain.c |  9 +++++----
 drivers/base/power/runtime.c      | 14 +++++++-------
 drivers/clk/clk.c                 |  8 ++++----
 4 files changed, 17 insertions(+), 16 deletions(-)

Re: [GIT PULL arm] Use _rcuidle tracepoints to allow tracing from idle

[Ingo Molnar]

* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:

> On Thu, May 26, 2016 at 09:26:06AM -0700, Paul E. McKenney wrote:
> > Hello, Ingo,
> > 
> > This series changes a number of event tracepoints to their _rcuidle() form
> > to allow use from idle without lockdep-RCU complaints, a straightforward
> > modification that has been successfully applied many times.  These splats
> > were found in testing by Guenter Roeck and Tony Lindgren, who have
> > both successfully tested the full series.  Tony asked that I carry these
> > in -rcu:
> > 
> > 	http://lkml.kernel.org/g/20160426213630.GV5995@atomide.com
> > 
> > These have been posted to LKML, CCing relevant maintainers, who have
> > not objected to the proposed changes:
> > 
> > 	http://lkml.kernel.org/g/20160516184844.GA20144@linux.vnet.ibm.com
> > 
> > These maintainers are also CCed on this pull request.
> > 
> > They have also been subjected to 0day Test Robot and -next testing.
> 
> And this time actually including the pull request...  :-/
> 
> 							Thanx, Paul
> 
> These changes are available in the git repository at:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo
> 
> for you to fetch changes up to e7c38dda94b23965a3eb46ef4656bb8cb921933d:
> 
>   arm: Use _rcuidle suffix to allow clk_core_enable() to used from idle (2016-05-18 11:55:29 -0700)
> 
> ----------------------------------------------------------------
> Paul E. McKenney (6):
>       arm: Use _rcuidle tracepoint to allow use from idle
>       arm: Use _rcuidle for suspend/resume tracepoints
>       arm: Add _rcuidle tracepoints to allow clk_core_disable() use from idle
>       arm: Add _rcuidle suffix to allow rpm_idle() use from idle
>       arm: Add _rcuidle suffix to allow rpm_resume() to be called from idle
>       arm: Use _rcuidle suffix to allow clk_core_enable() to used from idle
> 
>  arch/arm/kernel/smp.c             |  2 +-
>  arch/arm/mach-omap2/powerdomain.c |  9 +++++----
>  drivers/base/power/runtime.c      | 14 +++++++-------
>  drivers/clk/clk.c                 |  8 ++++----
>  4 files changed, 17 insertions(+), 16 deletions(-)

Just wondering, wouldn't it be better for Russell to pull/apply, as it appears to 
be a mostly ARM patch-set?

Thanks,

	Ingo

Re: [GIT PULL arm] Use _rcuidle tracepoints to allow tracing from idle

[Paul E. McKenney]

On Wed, Jun 08, 2016 at 03:33:50PM +0200, Ingo Molnar wrote:
> 
> * Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> 
> > On Thu, May 26, 2016 at 09:26:06AM -0700, Paul E. McKenney wrote:
> > > Hello, Ingo,
> > > 
> > > This series changes a number of event tracepoints to their _rcuidle() form
> > > to allow use from idle without lockdep-RCU complaints, a straightforward
> > > modification that has been successfully applied many times.  These splats
> > > were found in testing by Guenter Roeck and Tony Lindgren, who have
> > > both successfully tested the full series.  Tony asked that I carry these
> > > in -rcu:
> > > 
> > > 	http://lkml.kernel.org/g/20160426213630.GV5995@atomide.com
> > > 
> > > These have been posted to LKML, CCing relevant maintainers, who have
> > > not objected to the proposed changes:
> > > 
> > > 	http://lkml.kernel.org/g/20160516184844.GA20144@linux.vnet.ibm.com
> > > 
> > > These maintainers are also CCed on this pull request.
> > > 
> > > They have also been subjected to 0day Test Robot and -next testing.
> > 
> > And this time actually including the pull request...  :-/
> > 
> > 							Thanx, Paul
> > 
> > These changes are available in the git repository at:
> > 
> >   git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git for-mingo
> > 
> > for you to fetch changes up to e7c38dda94b23965a3eb46ef4656bb8cb921933d:
> > 
> >   arm: Use _rcuidle suffix to allow clk_core_enable() to used from idle (2016-05-18 11:55:29 -0700)
> > 
> > ----------------------------------------------------------------
> > Paul E. McKenney (6):
> >       arm: Use _rcuidle tracepoint to allow use from idle
> >       arm: Use _rcuidle for suspend/resume tracepoints
> >       arm: Add _rcuidle tracepoints to allow clk_core_disable() use from idle
> >       arm: Add _rcuidle suffix to allow rpm_idle() use from idle
> >       arm: Add _rcuidle suffix to allow rpm_resume() to be called from idle
> >       arm: Use _rcuidle suffix to allow clk_core_enable() to used from idle
> > 
> >  arch/arm/kernel/smp.c             |  2 +-
> >  arch/arm/mach-omap2/powerdomain.c |  9 +++++----
> >  drivers/base/power/runtime.c      | 14 +++++++-------
> >  drivers/clk/clk.c                 |  8 ++++----
> >  4 files changed, 17 insertions(+), 16 deletions(-)
> 
> Just wondering, wouldn't it be better for Russell to pull/apply, as it appears to 
> be a mostly ARM patch-set?

Fair enough -- I can always repost the patches to their respective
maintainers if you are in any way uncomfortable taking them.  The patches
do not depend on each other.

							Thanx, Paul