linux-kernel - [PATCH v5 0/2] Drivers: hv: vmbus: use cpu_hotplug_enable/disable for CPU offlining prevention

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Date:	Thu, 25 Jun 2015 15:50:47 +0200
From:	Vitaly Kuznetsov <vkuznets@...hat.com>
To:	devel@...uxdriverproject.org
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>,
	linux-kernel@...r.kernel.org, Dexuan Cui <decui@...rosoft.com>,
	Ingo Molnar <mingo@...nel.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Radim Krčmář <rkrcmar@...hat.com>,
	gregkh@...uxfoundation.org
Subject: [PATCH v5 0/2] Drivers: hv: vmbus: use cpu_hotplug_enable/disable for CPU offlining prevention

Changes since v4:
- In disable_nonboot_cpus() do cpu_hotplug_disabled++ unconditionally as
  its users are doing enable_nonboot_cpus() on their failure paths.

Changes since v3:
- add WARN_ON when decreasing cpu_hotplug_disabled [Peter Zijlstra]

Changes since v2:
- Rebase on top of current Greg's char-misc-next tree [K. Y. Srinivasan]

Changes since v1:
- Make cpu_hotplug_disabled a counter [Radim Krčmář]

Export cpu_hotplug_enable/cpu_hotplug_disable functions from cpu.c and use
them instead of altering smp_ops.cpu_disable in Hyper-V vmbus module.

Vitaly Kuznetsov (2):
  cpu-hotplug: export cpu_hotplug_enable/cpu_hotplug_disable
  Drivers: hv: vmbus: use cpu_hotplug_enable/disable

 Documentation/power/suspend-and-cpuhotplug.txt |  6 ++--
 drivers/hv/vmbus_drv.c                         | 38 +++-----------------------
 kernel/cpu.c                                   | 24 ++++++++++------
 3 files changed, 22 insertions(+), 46 deletions(-)

-- 
2.4.3

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