Hi Adam,

I can understand your worry, but back to beginning, just as the
subject of the patch: "replace deprecated __check_region to
request_region", I think this patch is still need, although it can't
solve the problems both you guys mentioned. Do you agree it?

2011/8/12 Adam M Belay [off-list ref]:

Hi Wang,

Yes, I think your description of the race condition is right. However, as
Bjorn
mentioned, there are many x86 init paths that will try to reserve the same
resources as those reported by pnp/acpi. There needs to be a better way to
coordinate legacy device enumeration. Otherwise, the request_region() calls
could fail when there isn't an actual resource conflict.

IF we could find a good way to clean up the legacy users of request_region()
then we could probably make pnp behave more like pci with regard to resource
reservations.

Cheers,
Adam

-- 
Wang Shaoyan