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

[Jiang Liu]

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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