On Mon, May 04, 2009 at 12:47:44PM +0530, arun c wrote:
> Hi all,
>
> I have a dual core system(I am running kernel 2.6.22, 2.6.16, or 2.6.27 ),
> where I can put a maximum of 8 similar PCI cards.
>
> So in my driver I register ('pci_register_driver()') with device ID and
> vender ID(same for all 8 cards).
>
> I need to access a global data from the probe functions. If there are
> 8 PCI devices detected probe function is called one after another?
>
> or is there any chance that they execute in parallel?
Yes, in the future (and in some types of configurations today), it could
execute in parallel.
Just use a lock to control access to your shared global data structure.
But you might wish to revisit your usage of global data, why can't it be
a per-device field that is dynamically created for every individual
device? That would scale much better, right?
thanks,
greg k-h
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