Re: kicking everybody out of the softc

[David Young <dyoung%pobox.com@localhost>]

On Sun, Aug 15, 2010 at 10:59:24PM -0700, Matt Thomas wrote:
> > 
> > Anyway, that's the gist of the idea.  I've attached the untested (and
> > uncompiled) code for the details.  Comments?
> 
> Seems overly complex.  Why shouldn't a driver be able to defer its
> detachment just like we can defer in attach?
> 
> void device_detach_defer(device_t);
> 
> When the driver has finally cleaned everything up it can do
> 
> void device_detach_complete(device_t);
> 
> to force the softc/device_t to be freed.

Maybe I don't understand, but this seems to move the problem somewhere
else.  When do we call device_detach_complete(), if not after every
thread is out of the softc?  And how do we know that?

Dave

-- 
David Young             OJC Technologies
dyoung%ojctech.com@localhost      Urbana, IL * (217) 278-3933