[PATCH 0/4 v2] rcu: Fix some rcu uses in extended quiescent state

[Frederic Weisbecker <fweisbec@gmail.com>]

I have changed a bit the first patch by adding a "rcu_ext_qs"
parameter in tick_nohz_enter_idle() so we just need to toggle that
parameter to false when rcu_enter_nohz() is called separately.
That's less confusing and more consistant than calling
tick_nohz_stop_sched_tick() instead of tick_nohz_enter_idle()
when rcu dynticks idle mode is handled separately.

It's an important enough change that I thought I had to drop
all the acks in the first patch.

Also it adds a new fix for a new bug detected in patch 4.

The powerpc case is trickier so I prefer to get that pile
handled before.

Thanks.

Frederic Weisbecker (4):
  nohz: Split extended quiescent state handling from nohz switch
  x86: Enter rcu extended qs after idle notifier call
  x86: Call idle notifier after irq_enter()
  rcu: Fix early call to rcu_irq_exit()

 arch/arm/kernel/process.c                |    4 +-
 arch/avr32/kernel/process.c              |    4 +-
 arch/blackfin/kernel/process.c           |    4 +-
 arch/microblaze/kernel/process.c         |    4 +-
 arch/mips/kernel/process.c               |    4 +-
 arch/powerpc/kernel/idle.c               |    4 +-
 arch/powerpc/platforms/iseries/setup.c   |    8 +++---
 arch/s390/kernel/process.c               |    4 +-
 arch/sh/kernel/idle.c                    |    2 +-
 arch/sparc/kernel/process_64.c           |    4 +-
 arch/tile/kernel/process.c               |    4 +-
 arch/um/kernel/process.c                 |    4 +-
 arch/unicore32/kernel/process.c          |    4 +-
 arch/x86/kernel/apic/apic.c              |    6 ++--
 arch/x86/kernel/apic/io_apic.c           |    2 +-
 arch/x86/kernel/cpu/mcheck/mce.c         |    2 +-
 arch/x86/kernel/cpu/mcheck/therm_throt.c |    2 +-
 arch/x86/kernel/cpu/mcheck/threshold.c   |    2 +-
 arch/x86/kernel/irq.c                    |    6 ++--
 arch/x86/kernel/process_32.c             |    4 +-
 arch/x86/kernel/process_64.c             |    9 ++++++-
 include/linux/tick.h                     |    9 ++++---
 kernel/softirq.c                         |    2 +-
 kernel/time/tick-sched.c                 |   31 +++++++++++++++++++++++++----
 24 files changed, 78 insertions(+), 51 deletions(-)

-- 
1.7.5.4