linux-kernel - [RFC Patch V1 0/4] enhance IOAPIC core to support hotplug

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Date:	Tue, 27 May 2014 16:24:33 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Grant Likely <grant.likely@...aro.org>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Yinghai Lu <yinghai@...nel.org>
Cc:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tony Luck <tony.luck@...el.com>,
	Joerg Roedel <joro@...tes.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	x86@...nel.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: [RFC Patch V1 0/4] enhance IOAPIC core to support hotplug

This patch set enhances IOAPIC core to support IOAPIC hotplug on x86
platforms. It's based on another patch set "use irqdomain to dynamically
allocate IRQ for IOAPIC" at https://lkml.org/lkml/2014/5/27/86

You may pull from 
https://github.com/jiangliu/linux.git ioapic/hotplug

Once passed review, we will use Yinghai's patches to glue IOAPIC
driver and ACPI PCI root driver to handle hotplug events.

Jiang Liu (4):
  x86, irq: refine mp_register_ioapic() to prepare for IOAPIC hotplug
  x86, irq, ACPI: introduce a rwsem to protect IOAPIC operations from
    hotplug
  x86, irq, ACPI: implement interface to support ACPI based IOAPIC
    hot-addition
  x86, irq, ACPI: implement interface to support ACPI based IOAPIC
    hot-removal

 arch/x86/include/asm/io_apic.h |    5 +-
 arch/x86/kernel/acpi/boot.c    |   44 +++++++--
 arch/x86/kernel/apic/io_apic.c |  207 ++++++++++++++++++++++++++++++----------
 3 files changed, 196 insertions(+), 60 deletions(-)

-- 
1.7.10.4

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