Re: [RFC v1 0/3] driver-core: add asynch module loading support

From: Dmitry Torokhov
Date: Sun Aug 31 2014 - 13:52:53 EST

On Sun, Aug 31, 2014 at 07:05:26AM -0400, Tejun Heo wrote:
> On Sun, Aug 31, 2014 at 07:02:00AM -0400, Tejun Heo wrote:
> > So, something like the following. A couple things to note
> >
> > * driver_attach() can never fail but is marked with __must_check. We
> > prolly should change it to void.
> >
> > * Old/weird userspace which depends on insmod to wait for device
> > probing might choke and the new behavior might need to be switched
> > somehow (sysctl, insmod param or whatever).
> One more thing.
> * Use of ordered workqueue probably isn't necessary and using
> system_unbound_wq should be fine.

For my use case (touchpad taking long time to initialize) I explicitly do not
want it to keep order of initialization. I want to make sure the rest of the
kernel continues initialization while touchpad device resets.


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