On Fri, May 27 2022, Jason Wang <jasowang@xxxxxxxxxx> wrote: > This patch tries to implement the synchronize_cbs() for ccw. For the > vring_interrupt() that is called via virtio_airq_handler(), the > synchronization is simply done via the airq_info's lock. For the > vring_interrupt() that is called via virtio_ccw_int_handler(), a per > device rwlock is introduced and used in the synchronization method. > > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx> > Cc: Marc Zyngier <maz@xxxxxxxxxx> > Cc: Halil Pasic <pasic@xxxxxxxxxxxxx> > Cc: Cornelia Huck <cohuck@xxxxxxxxxx> > Cc: Vineeth Vijayan <vneethv@xxxxxxxxxxxxx> > Cc: Peter Oberparleiter <oberpar@xxxxxxxxxxxxx> > Cc: linux-s390@xxxxxxxxxxxxxxx > Reviewed-by: Halil Pasic <pasic@xxxxxxxxxxxxx> > Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx> > --- > drivers/s390/virtio/virtio_ccw.c | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
