Re: [PATCH 00/47] PCI, x86: pci root bus hotplug support

From: Yinghai Lu
Date: Tue Mar 20 2012 - 13:20:55 EST


On Mon, Mar 19, 2012 at 2:37 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote:
> On Sun, Mar 18, 2012 at 11:45 PM, Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>> will add pci_stop_and_remove_bus() to support remove bus in
>> /sys/devices/pci.../pci_bus/...
>>
>> To rescan root, need to
>> echo 1 > /sys/bus/pci/rescan_root
>>
>> It supports acpi path root bus and legacy root bus.
>
> I tried to start discussions about some interesting issues such as
> acpi_pci_root_rescan() and /sys/bus/pci/rescan_root.
>
> I don't think it's a good use of my time to re-review all these
> patches until after we make some progress on those conversations.

Actually I reordered that patch applying sequence.

PCI, ACPI: Add acpi_pci_root_rescan()
x86, PCI: Add arch version pci_root_rescan()
PCI: Add /sys/bus/pci/rescan_root

will be applied at last. So Jesse could skip those 3 or so patches,
and upstream will only support really physical root-bus hotplug that
user need to press attention button.

Yinghai
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