linux-kernel - Re: [PATCH V6 4/9] virtio-pci: implement synchronize

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Date:   Fri, 27 May 2022 15:31:52 +0800
From:   Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     tglx@...utronix.de, peterz@...radead.org, paulmck@...nel.org,
        maz@...nel.org, pasic@...ux.ibm.com, cohuck@...hat.com,
        eperezma@...hat.com, lulu@...hat.com, sgarzare@...hat.com,
        Vineeth Vijayan <vneethv@...ux.ibm.com>,
        Peter Oberparleiter <oberpar@...ux.ibm.com>,
        linux-s390@...r.kernel.org, mst@...hat.com, jasowang@...hat.com,
        virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V6 4/9] virtio-pci: implement synchronize_cbs()

On Fri, 27 May 2022 14:01:15 +0800, Jason Wang <jasowang@...hat.com> wrote:
> We can simply reuse vp_synchronize_vectors() for .synchronize_cbs().
>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Peter Zijlstra <peterz@...radead.org>
> Cc: "Paul E. McKenney" <paulmck@...nel.org>
> Cc: Marc Zyngier <maz@...nel.org>
> Cc: Halil Pasic <pasic@...ux.ibm.com>
> Cc: Cornelia Huck <cohuck@...hat.com>
> Cc: Vineeth Vijayan <vneethv@...ux.ibm.com>
> Cc: Peter Oberparleiter <oberpar@...ux.ibm.com>
> Cc: linux-s390@...r.kernel.org
> Reviewed-by: Cornelia Huck <cohuck@...hat.com>
> Signed-off-by: Jason Wang <jasowang@...hat.com>

Reviewed-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>

> ---
>  drivers/virtio/virtio_pci_legacy.c | 1 +
>  drivers/virtio/virtio_pci_modern.c | 2 ++
>  2 files changed, 3 insertions(+)
>
> diff --git a/drivers/virtio/virtio_pci_legacy.c b/drivers/virtio/virtio_pci_legacy.c
> index 7fe4caa4b519..a5e5721145c7 100644
> --- a/drivers/virtio/virtio_pci_legacy.c
> +++ b/drivers/virtio/virtio_pci_legacy.c
> @@ -192,6 +192,7 @@ static const struct virtio_config_ops virtio_pci_config_ops = {
>  	.reset		= vp_reset,
>  	.find_vqs	= vp_find_vqs,
>  	.del_vqs	= vp_del_vqs,
> +	.synchronize_cbs = vp_synchronize_vectors,
>  	.get_features	= vp_get_features,
>  	.finalize_features = vp_finalize_features,
>  	.bus_name	= vp_bus_name,
> diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c
> index 4acb34409f0b..623906b4996c 100644
> --- a/drivers/virtio/virtio_pci_modern.c
> +++ b/drivers/virtio/virtio_pci_modern.c
> @@ -394,6 +394,7 @@ static const struct virtio_config_ops virtio_pci_config_nodev_ops = {
>  	.reset		= vp_reset,
>  	.find_vqs	= vp_modern_find_vqs,
>  	.del_vqs	= vp_del_vqs,
> +	.synchronize_cbs = vp_synchronize_vectors,
>  	.get_features	= vp_get_features,
>  	.finalize_features = vp_finalize_features,
>  	.bus_name	= vp_bus_name,
> @@ -411,6 +412,7 @@ static const struct virtio_config_ops virtio_pci_config_ops = {
>  	.reset		= vp_reset,
>  	.find_vqs	= vp_modern_find_vqs,
>  	.del_vqs	= vp_del_vqs,
> +	.synchronize_cbs = vp_synchronize_vectors,
>  	.get_features	= vp_get_features,
>  	.finalize_features = vp_finalize_features,
>  	.bus_name	= vp_bus_name,
> --
> 2.25.1
>