linux-kernel - Re: [PATCH 0/4] rcu: Detect rcu uses under extended quiescent state, and fix some

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Date:	Mon, 6 Jun 2011 11:12:46 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH 0/4] rcu: Detect rcu uses under extended quiescent
 state, and fix some

On Mon, Jun 06, 2011 at 05:10:53AM +0200, Frederic Weisbecker wrote:
> I found two examples with the last two patches but I suspect there are more bugs
> waiting to be detected under other configs and/or archs.

Good catch!!!

							Thanx, Paul

> Frederic Weisbecker (4):
>   rcu: Detect uses of rcu read side in extended quiescent states
>   nohz: Split extended quiescent state handling from nohz switch
>   x86: Don't call idle notifier inside rcu extended QS
>   x86: Call idle_exit() after irq_enter()
> 
>  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           |    3 +-
>  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                    |    5 +--
>  arch/x86/kernel/process_32.c             |    4 +-
>  arch/x86/kernel/process_64.c             |    7 +++++-
>  include/linux/lockdep.h                  |    8 ++++++-
>  include/linux/rcupdate.h                 |   20 ++++++++++++-----
>  include/linux/tick.h                     |   10 ++++++--
>  kernel/lockdep.c                         |   12 ++++++++--
>  kernel/pid.c                             |    2 +-
>  kernel/rcutree.c                         |   14 ++++++++++++
>  kernel/time/tick-sched.c                 |   34 ++++++++++++++++++++++++++++-
>  28 files changed, 129 insertions(+), 56 deletions(-)
> 
> -- 
> 1.7.5.2
> 
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