Re: [patch] drivers: wait for threaded probes between initcall levels

Matthew Wilcox
2006-10-30T19:13:09Z

On Mon, Oct 30, 2006 at 01:47:53PM -0500, Kyle Moffett wrote:
> Well, yes, but it would help some architectures. It would seem
> rather stupid to build a hardware limitation into a 64+ cpu system
> such that it cannot initialize or reconfigure multiple pieces of
> hardware at once. It also would help for more "mundane" systems such
> as my "Quad" G5 desktop which takes an appreciable time to probe all
> the various PCI, USB, SATA, and Firewire devices in the system.

Probing PCI devices really doesn't take that long. It's the extra stuff
the drivers do at ->probe that takes the time. And the stand-out
offender here is SCSI (and FC), which I'm working to fix. Firewire, USB
and SATA are somewhere intermediate.