Re: [PATCH v4 01/16] s390: cio: introduce cio_cancel_halt_clear

Sebastian Ott
2017-03-17T09:51:20Z

On Fri, 17 Mar 2017, Dong Jia Shi wrote:
> * Sebastian Ott <sebott@linux.vnet.ibm.com> [2017-03-17 10:26:51 +0100]:
>
> > On Fri, 17 Mar 2017, Dong Jia Shi wrote:
> > > For future code reuse purpose, this decouples the cio code with
> > > the ccw device specific parts from ccw_device_cancel_halt_clear,
> > > and makes a new common I/O interface named cio_cancel_halt_clear.
> >
> > What would the user of cio_cancel_halt_clear be?
> Hi Sebastian,
>
> We are trying to introduce a new I/O subchannel driver to enable usage
> of I/O subchannels via VFIO-CCW, so we can passthru a subchannel to a
> KVM guest. And that new vfio-ccw subchannel driver is the user. :>

OK, thanks for the explanation. May I suggest that you put these patches
in the series that actually introduces the new subchannel driver.

Sebastian