linux-kernel - Re: [PATCH] virtio/ringtest: virtio_ring: fix up need

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Message-ID: <20171030130025.vmhzygf2cmwozhg3@localhost.localdomain>
Date:   Mon, 30 Oct 2017 14:00:25 +0100
From:   Jens Freimann <jfreimann@...hat.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH] virtio/ringtest: virtio_ring: fix up need_event math

On Fri, Oct 27, 2017 at 01:11:13PM +0000, Michael S. Tsirkin wrote:
>last kicked event index must be updated unconditionally:
>even if we don't need to kick, we do not want to re-check
>the same entry for events.
>
>Reported-by: Cornelia Huck <cohuck@...hat.com>
>Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
>---
> tools/virtio/ringtest/virtio_ring_0_9.c | 24 ++++++++++++++----------
> 1 file changed, 14 insertions(+), 10 deletions(-)
>

Reviewed-by: Jens Freimann <jfreimann@...hat.com>