This patch contains two parts:
One is to add a new API to mm go get the unused page information.
The virtio balloon driver will use this new API added to get the
unused page info and send it to hypervisor(QEMU) to speed up live
migration. During sending the bitmap, some the pages may be modified
a
On 11/30/2016 12:43 AM, Liang Li wrote:
> +static void send_unused_pages_info(struct virtio_balloon *vb,
> + unsigned long req_id)
> +{
> + struct scatterlist sg_in;
> + unsigned long pos = 0;
> + struct virtqueue *vq = vb->req_vq;
> + struct virtio_ballo
> On 11/30/2016 12:43 AM, Liang Li wrote:
> > +static void send_unused_pages_info(struct virtio_balloon *vb,
> > + unsigned long req_id)
> > +{
> > + struct scatterlist sg_in;
> > + unsigned long pos = 0;
> > + struct virtqueue *vq = vb->req_vq;
> > + struct virtio
On 12/04/2016 05:13 AM, Li, Liang Z wrote:
>> On 11/30/2016 12:43 AM, Liang Li wrote:
>>> +static void send_unused_pages_info(struct virtio_balloon *vb,
>>> + unsigned long req_id)
>>> +{
>>> + struct scatterlist sg_in;
>>> + unsigned long pos = 0;
>>> + struct virtq
> >>> + mutex_lock(&vb->balloon_lock);
> >>> +
> >>> + for (order = MAX_ORDER - 1; order >= 0; order--) {
> >>
> >> I scratched my head for a bit on this one. Why are you walking over
> >> orders,
> >> *then* zones. I *think* you're doing it because you can efficiently
> >> fill the bitmaps at a
