linux-kernel - Re: [PATCH V5 6/9] virtio-ccw: implement synchronize

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Message-ID: <20220524182925.1f003a27.pasic@linux.ibm.com>
Date:   Tue, 24 May 2022 18:29:25 +0200
From:   Halil Pasic <pasic@...ux.ibm.com>
To:     Jason Wang <jasowang@...hat.com>
Cc:     mst@...hat.com, virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, tglx@...utronix.de,
        peterz@...radead.org, paulmck@...nel.org, maz@...nel.org,
        cohuck@...hat.com, eperezma@...hat.com, lulu@...hat.com,
        sgarzare@...hat.com, xuanzhuo@...ux.alibaba.com,
        Vineeth Vijayan <vneethv@...ux.ibm.com>,
        Peter Oberparleiter <oberpar@...ux.ibm.com>,
        linux-s390@...r.kernel.org, Halil Pasic <pasic@...ux.ibm.com>
Subject: Re: [PATCH V5 6/9] virtio-ccw: implement synchronize_cbs()

On Wed, 18 May 2022 11:59:48 +0800
Jason Wang <jasowang@...hat.com> 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 ans used in the synchronization method.
> 
> 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
> Signed-off-by: Jason Wang <jasowang@...hat.com>

Reviewed-by: Halil Pasic <pasic@...ux.ibm.com>