Re: [PATCH 0/2] s390/vfio-ap: do not open code locks for VFIO_GROUP_NOTIFY_SET_KVM notification

[Halil Pasic]

On Mon, 2 Aug 2021 09:10:26 -0400
Tony Krowiak <akrowiak@xxxxxxxxxxxxx> wrote:

> PING!
> 
> This patch will pre-req version 17 of a patch series I have waiting in 
> the wings,
> so I'd like to get this one merged ASAP. In particular, if a KVM 
> maintainer can
> take a look at the comments concerning the taking of the kvm->lock 
> before the
> matrix_mdev->lock it would be greatly appreciated. Those comments begin with
> Message ID <20210727004329.3bcc7d4f.pasic@xxxxxxxxxxxxx> from Halil Pasic.

As far as I'm concerned, we can move forward with this. Was this
supposed to go in via Alex's tree?

> 
> On 7/19/21 3:35 PM, Tony Krowiak wrote:
> > This series is actually only comprised of a single patch to replace the
> > open coded locks used during VFIO_GROUP_NOTIFY_SET_KVM notification. The
> > first patch is included because it is a pre-req slotted to be merged but is
> > not yet available in the kernel.
> >
> > Tony Krowiak (2):
> >    s390/vfio-ap: r/w lock for PQAP interception handler function pointer
> >    s390/vfio-ap: replace open coded locks for VFIO_GROUP_NOTIFY_SET_KVM
> >      notification
> >
> >   arch/s390/include/asm/kvm_host.h      |   8 +-
> >   arch/s390/kvm/kvm-s390.c              |  28 +++++-
> >   arch/s390/kvm/priv.c                  |  10 +-
> >   drivers/s390/crypto/vfio_ap_ops.c     | 127 +++++++++-----------------
> >   drivers/s390/crypto/vfio_ap_private.h |   4 +-
> >   5 files changed, 77 insertions(+), 100 deletions(-)
> >  
>