On Tue, May 08, 2007 at 06:38:46PM +0200, Cornelia Huck wrote:
> On Tue, 8 May 2007 08:27:34 -0700 (PDT),
> Linus Torvalds <[email protected]> wrote:
>
> > And no, we should not do it at the device core level. In fact, I don't
> > think we should do it at that level at all.
> >
> > I'm pretty sure that the performance problems are at individual device
> > drivers, and that the right solution is to thread at *that* level. Not
> > higher up.
>
> These are two different problems:
>
> 1. Probing taking long for individual device drivers. I agree, this
> should be solved at the driver level.
For your bus perhaps, but not for PCI.
> 2. Sheer volume of devices on a bus. Even if the indivdual probing
> doesn't take long, having all devices probed one after the other may
> take a lot of time. Putting the actual probe on a thread makes it
> possible to run several probes in parallel, thereby cutting probing
> time.
Again, not for PCI, right?
If you want to implement this for your bus type, fine, I have no
objection to that at all, but not for PCI, it's just not worth it.
thanks,
greg k-h
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