Re: [PATCH 2/2] s390/vfio-ap: replace open coded locks for VFIO_GROUP_NOTIFY_SET_KVM notification

[Jason Gunthorpe]

On Mon, Jul 26, 2021 at 10:36:28PM +0200, Halil Pasic wrote:

> You may end up with open and close running interleaved. What I'
> trying to say is, to my best knowledge, normally there is no
> you have to close it before you open it again rule for files.

This is an existing bug in this driver, I've fixed in the reflck series.

open_device/close_device will not run concurrently, or out of order,
afer it is fixed.

Jason