Re: [PATCH] PCI, ACPI: hold acpi_scan_lock during root bus hotplug

[Bjorn Helgaas]

On Tue, Mar 26, 2013 at 4:54 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> On Tuesday, March 26, 2013 08:12:30 AM Yinghai Lu wrote:
>> On Tue, Mar 26, 2013 at 6:24 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
>> > On Sunday, March 10, 2013 10:05:16 PM Yinghai Lu wrote:
>> >> During merging pci tree with pm/acpi tree, Linus noticed that
>> >> we don't have same lock using patten about acpi pci root as
>> >> acpiphp.
>> >>
>> >> Here apply same lock patten, and we need to change
>> >> acpi_bus_hot_remove_device executing via acpi_os_hotplug_execute()
>> >> as it also hold the lock in acpi_bus_hot_remove_device.
>> >>
>> >> That will make acpi_bus_hot_remove_device calling the same as other
>> >> callers.
>> >>
>> >> Reported-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
>> >> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
>> >> Acked-by: Rafael J. Wysocki <rjw@xxxxxxx>
>> >
>> > Bjorn, this needs to go in before final 3.9.
>> >
>> > Are you going to handle it, or should I take care of it?
>>
>> It should be better via your pm+acpi tree, as that lock is added via your tree.
>
> OK, I'll take it, then, if Bjorn doesn't object.

Yep, that's fine with me.
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