Re: [PATCH 1/3] ACPI / scan: Change ordering of locks for devicehotplug
From: Toshi Kani
Date: Fri Aug 30 2013 - 20:19:15 EST
On Thu, 2013-08-29 at 23:15 +0200, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> Change the ordering of device hotplug locks in scan.c so that
> acpi_scan_lock is always acquired after device_hotplug_lock.
>
> This will make it possible to use device_hotplug_lock around some
> code paths that acquire acpi_scan_lock safely (most importantly
> system suspend and hibernation). Apart from that, acpi_scan_lock
> is platform-specific and device_hotplug_lock is general, so the
> new ordering appears to be more appropriate from the overall
> design viewpoint.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Acked-by: Toshi Kani <toshi.kani@xxxxxx>
Thanks,
-Toshi
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