linux-kernel - Re: [PATCH v2 0/4] Unify CPU hotplug lock interface

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Date:	Fri, 30 Aug 2013 08:35:38 -0600
From:	Toshi Kani <toshi.kani@...com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
	mingo@...hat.com, hpa@...ux.intel.com, tglx@...utronix.de,
	gregkh@...uxfoundation.org, benh@...nel.crashing.org,
	linux-acpi@...r.kernel.org, x86@...nel.org,
	linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
	nfont@...ux.vnet.ibm.com, fenghua.yu@...el.com, bp@...e.de,
	srivatsa.bhat@...ux.vnet.ibm.com
Subject: Re: [PATCH v2 0/4] Unify CPU hotplug lock interface

On Fri, 2013-08-30 at 14:14 +0200, Rafael J. Wysocki wrote:
> On Friday, August 30, 2013 11:44:06 AM Yasuaki Ishimatsu wrote:
> > (2013/08/30 9:22), Toshi Kani wrote:
> > > lock_device_hotplug() was recently introduced to serialize CPU & Memory
> > > online/offline and hotplug operations, along with sysfs online interface
> > > restructure (commit 4f3549d7).  With this new locking scheme,
> > > cpu_hotplug_driver_lock() is redundant and is no longer necessary.
> > > 
> > > This patchset makes sure that lock_device_hotplug() covers all CPU online/
> > > offline interfaces, and then removes cpu_hotplug_driver_lock().
> > > 
> > > v2:
> > >   - Rebased to the pm tree, bleeding-edge.
> > >   - Changed patch 2/4 to use lock_device_hotplug_sysfs().
> > > 
> > > ---
> > > Toshi Kani (4):
> > >    hotplug, x86: Fix online state in cpu0 debug interface
> > >    hotplug, x86: Add hotplug lock to missing places
> > >    hotplug, x86: Disable ARCH_CPU_PROBE_RELEASE on x86
> > >    hotplug, powerpc, x86: Remove cpu_hotplug_driver_lock()
> > > 
> > > ---
> > The patch-set looks good to me.
> > 
> > Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>
> 
> Thanks!  I'll tentatively queue up this series for 3.12 (for the second
> half of the merge window).

Thanks Rafael!
-Toshi

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