Re: PATCH: (as177) Add class_device_unregister_wait() andplatform_device_unregister_wait() to the driver model core

[Roman Zippel <zippel _at_ xxxxxxxxxxxxxx>]

Hi,

On Tue, 27 Jan 2004, Greg KH wrote:

> > All this is done without a module count, this means that
> > pci_unregister_driver() cannot return before the last reference is gone.
> > For network devices this is not that much of a problem, as they can be
> > rather easily deconfigured automatically, but that's not that easy for
> > mounted block devices, so one has to be damned careful when to call the
> > exit function.
>
> Um, not anymore.  I can yank out a mounted block device and watch the
> scsi core recover just fine.  The need to make everything hotpluggable
> has fixed up a lot of issues like this (as well as made more
> problems...)

Recovery of the scsi core is IMO one the smallest problems, but how do you
recover at the block layer? The point is that you have here theoretically
more one recovery strategy, but simply pulling out the module leaves you
not much room for a controlled recovery.

bye, Roman
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