Messages in this thread | | | Date | Tue, 26 Apr 2022 11:46:08 +0800 | Subject | Re: [PATCH V3 6/9] virtio-ccw: implement synchronize_cbs() | From | Jason Wang <> |
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在 2022/4/26 10:50, Halil Pasic 写道: >>>> +static void virtio_ccw_synchronize_cbs(struct virtio_device *vdev) >>>> +{ >>>> + struct virtio_ccw_device *vcdev = to_vc_device(vdev); >>>> + struct airq_info *info = vcdev->airq_info; >>>> + >>>> + /* >>>> + * Synchronize with the vring_interrupt() called by >>>> + * virtio_ccw_int_handler(). >>>> + */ >>>> + spin_lock(&vcdev->irq_lock); >>>> + spin_unlock(&vcdev->irq_lock); >>>> + >>>> + if (info) { >>>> + /* >>>> + * Synchronize with the vring_interrupt() with airq indicator >>>> + */ >>>> + write_lock(&info->lock); >>>> + write_unlock(&info->lock); >>>> + } >> I think we can make this an either/or operation (devices will either use >> classic interrupts or adapter interrupts)? > Right, for virtqueue notifications. I second Connie's motion!
Will do this.
Thanks
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