[PATCH 1/3] driver core: Support asynchronous driver shutdown

[Christoph Hellwig]

On Mon, Dec 18, 2023 at 10:19:43PM -0800, Jeremy Allison wrote:
>> Is there any reason to have a separate shutdown_pre method?
>> Especially with all the method wrapping in the driver core, yet
>> another method just keeps confusing everyone.
>
> Currently in the patch the existence of a shutdown_pre() method
> for a device causes it to be added to the async_shutdown_list
> which is walked to reap the completion status after all the
> calls to shutdown_pre().
>
> I could change this so that the existing shutdown() method
> is always called, and the device is only added to the async_shutdown_list
> if a shutdown_post() (or as requested below, shutdown_wait())
> method is defined for the device.

Yes, that's what I mean.