linux-kernel - Re: [PATCH v1 2/2] virtio-balloon: improve update_balloon_size

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Message-ID: <20190103104236.06568289.cohuck@redhat.com>
Date:   Thu, 3 Jan 2019 10:42:36 +0100
From:   Cornelia Huck <cohuck@...hat.com>
To:     Wei Wang <wei.w.wang@...el.com>
Cc:     virtio-dev@...ts.oasis-open.org, linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, kvm@...r.kernel.org,
        mst@...hat.com, borntraeger@...ibm.com, pbonzini@...hat.com,
        dgilbert@...hat.com, pasic@...ux.ibm.com
Subject: Re: [PATCH v1 2/2] virtio-balloon: improve update_balloon_size_func

On Thu,  3 Jan 2019 13:31:02 +0800
Wei Wang <wei.w.wang@...el.com> wrote:

> There is no need to update the balloon actual register when there is no
> ballooning request. This patch avoids update_balloon_size when diff is 0.
> 
> Signed-off-by: Wei Wang <wei.w.wang@...el.com>
> ---
>  drivers/virtio/virtio_balloon.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)

Reviewed-by: Cornelia Huck <cohuck@...hat.com>