Messages in this thread | | | Date | Fri, 27 May 2022 12:36:32 +0200 | From | Stefano Garzarella <> | Subject | Re: [PATCH V6 3/9] virtio: introduce config op to synchronize vring callbacks |
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On Fri, May 27, 2022 at 02:01:14PM +0800, Jason Wang wrote: >This patch introduces new virtio config op to vring >callbacks. Transport specific method is required to make sure the >write before this function is visible to the vring_interrupt() that is >called after the return of this function. For the transport that >doesn't provide synchronize_vqs(), use synchornize_rcu() which >synchronize with IRQ implicitly as a fallback. > >Cc: Thomas Gleixner <tglx@linutronix.de> >Cc: Peter Zijlstra <peterz@infradead.org> >Cc: "Paul E. McKenney" <paulmck@kernel.org> >Cc: Marc Zyngier <maz@kernel.org> >Cc: Halil Pasic <pasic@linux.ibm.com> >Cc: Cornelia Huck <cohuck@redhat.com> >Cc: Vineeth Vijayan <vneethv@linux.ibm.com> >Cc: Peter Oberparleiter <oberpar@linux.ibm.com> >Cc: linux-s390@vger.kernel.org >Reviewed-by: Cornelia Huck <cohuck@redhat.com> >Signed-off-by: Jason Wang <jasowang@redhat.com> >--- > include/linux/virtio_config.h | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+)
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
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