[GIT PULL] timers/nohz changes for v3.12

[GIT PULL] timers/nohz changes for v3.12

[Ingo Molnar]

Linus,

Please pull the latest timers-nohz-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus

   HEAD: c2e7fcf53c3cb02b4ada1c66a9bc8a4d97d58aba nohz: Include local CPU in full dynticks global kick

It mostly contains fixes and full dynticks off-case optimizations,
by Frederic Weisbecker.

NOTE: for some reason my pull request scripts failed to generate a proper 
diffstat so I've generated the shortlog and diffstat manually. All 
resulting mistakes are mine.

 Thanks,

	Ingo

------------------>
Frederic Weisbecker (24):
      sched: Consolidate open coded preemptible() checks
      context_tracing: Fix guest accounting with native vtime
      vtime: Update a few comments
      context_tracking: Fix runtime CPU off-case
      nohz: Only enable context tracking on full dynticks CPUs
      context_tracking: Remove full dynticks' hacky dependency on wide context tracking
      context_tracking: Ground setup for static key use
      context_tracking: Optimize main APIs off case with static key
      context_tracking: Optimize guest APIs off case with static key
      context_tracking: Optimize context switch off case with static keys
      context_tracking: User/kernel broundary cross trace events
      vtime: Remove a few unneeded generic vtime state checks
      vtime: Fix racy cputime delta update
      context_tracking: Split low level state headers
      hardirq: Split preempt count mask definitions
      m68k: hardirq_count() only need preempt_mask.h
      vtime: Describe overriden functions in dedicated arch headers
      vtime: Optimize full dynticks accounting off case with static keys
      vtime: Always scale generic vtime accounting results
      vtime: Always debug check snapshot source _before_ updating it
      nohz: Rename a few state variables
      nohz: Optimize full dynticks state checks with static keys
      nohz: Optimize full dynticks's sched hooks with static keys
      nohz: Include local CPU in full dynticks global kick

Ingo Molnar (1):
      Merge branch 'timers/nohz-v3' of git://git.kernel.org/.../frederic/linux-dynticks into timers/nohz

Merge made by the 'recursive' strategy.

 arch/ia64/include/asm/Kbuild            |   1 +
 arch/m68k/include/asm/irqflags.h        |   2 +-
 arch/powerpc/include/asm/Kbuild         |   1 +
 arch/s390/include/asm/cputime.h         |   3 --
 arch/s390/include/asm/vtime.h           |   7 ++++
 arch/s390/kernel/vtime.c                |   1 +
 include/linux/context_tracking.h        | 128 ++++++++++++++++++++++++++++++++++++++---------------------------------
 include/linux/context_tracking_state.h  |  39 ++++++++++++++++++++++
 include/linux/hardirq.h                 | 117 +---------------------------------------------------------------
 include/linux/preempt_mask.h            | 122 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/tick.h                    |  45 +++++++++++++++++++++----
 include/linux/vtime.h                   |  74 ++++++++++++++++++++++++++++++++++++-----
 include/trace/events/context_tracking.h |  58 ++++++++++++++++++++++++++++++++
 init/Kconfig                            |  28 ++++++++++++----
 init/main.c                             |   2 ++
 kernel/context_tracking.c               | 125 +++++++++++++++++++++++++++++++++++++++------------------------------
 kernel/sched/core.c                     |   4 +--
 kernel/sched/cputime.c                  |  53 +++++++++--------------------
 kernel/time/Kconfig                     |   1 -
 kernel/time/tick-sched.c                |  61 ++++++++++++++++------------------
 20 files changed, 545 insertions(+), 327 deletions(-)
 create mode 100644 arch/s390/include/asm/vtime.h
 create mode 100644 include/asm-generic/vtime.h
 create mode 100644 include/linux/context_tracking_state.h
 create mode 100644 include/linux/preempt_mask.h
 create mode 100644 include/trace/events/context_tracking.h

Re: [GIT PULL] timers/nohz changes for v3.12

[Geert Uytterhoeven]

On Tue, Sep 3, 2013 at 4:13 PM, Ingo Molnar <mingo@kernel.org> wrote:
> Please pull the latest timers-nohz-for-linus git tree from:
>
>    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus
>
>    HEAD: c2e7fcf53c3cb02b4ada1c66a9bc8a4d97d58aba nohz: Include local CPU in full dynticks global kick
>
> It mostly contains fixes and full dynticks off-case optimizations,
> by Frederic Weisbecker.
>
> NOTE: for some reason my pull request scripts failed to generate a proper
> diffstat so I've generated the shortlog and diffstat manually. All
> resulting mistakes are mine.

You forgot to push timers-nohz-for-linus, or it hadn't propagated from
ra.kernel.org to git.kernel.org?

git (1.7.9.5, Ubuntu 12.04LTS) doesn't seem to complain about missing or
stale branches on the remote, and just does something it thinks is right.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [GIT PULL] timers/nohz changes for v3.12

[Ingo Molnar]

* Geert Uytterhoeven <geert@linux-m68k.org> wrote:

> On Tue, Sep 3, 2013 at 4:13 PM, Ingo Molnar <mingo@kernel.org> wrote:
> > Please pull the latest timers-nohz-for-linus git tree from:
> >
> >    git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers-nohz-for-linus
> >
> >    HEAD: c2e7fcf53c3cb02b4ada1c66a9bc8a4d97d58aba nohz: Include local CPU in full dynticks global kick
> >
> > It mostly contains fixes and full dynticks off-case optimizations,
> > by Frederic Weisbecker.
> >
> > NOTE: for some reason my pull request scripts failed to generate a proper
> > diffstat so I've generated the shortlog and diffstat manually. All
> > resulting mistakes are mine.
> 
> You forgot to push timers-nohz-for-linus, or it hadn't propagated from
> ra.kernel.org to git.kernel.org?

Hm, it's visible here.

> git (1.7.9.5, Ubuntu 12.04LTS) doesn't seem to complain about missing or 
> stale branches on the remote, and just does something it thinks is 
> right.

My scripts check that the remote branch is visible and is the same as the 
local branch - but I guess there's a way that check can go wrong as well.

Thanks,

	Ingo