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

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Date:	Thu, 29 Aug 2013 18:22:05 -0600
From:	Toshi Kani <toshi.kani@...com>
To:	rjw@...k.pl
Cc:	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, isimatu.yasuaki@...fujitsu.com,
	Toshi Kani <toshi.kani@...com>
Subject: [PATCH v2 0/4] Unify CPU hotplug lock interface

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()

---
 arch/powerpc/kernel/smp.c              | 12 ----------
 arch/powerpc/platforms/pseries/dlpar.c | 40 +++++++++++++---------------------
 arch/x86/Kconfig                       |  4 ----
 arch/x86/kernel/smpboot.c              | 21 ------------------
 arch/x86/kernel/topology.c             | 11 ++++++----
 drivers/base/cpu.c                     | 34 +++++++++++++++++++----------
 include/linux/cpu.h                    | 13 -----------
 7 files changed, 45 insertions(+), 90 deletions(-)
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