On Fri, Oct 20, 2017 at 07:54:26PM +0800, Wei Wang wrote:
> This patch forces the cease of the inflating work when OOM occurs.
> The fundamental idea of memory ballooning is to take out some guest
> pages when the guest has low memory utilization, so it is sensible to
> inflate nothing when the
Wei Wang wrote:
> >> @@ -162,20 +160,20 @@ static unsigned fill_balloon(struct virtio_balloon
> >> *vb, size_t num)
> >>msleep(200);
> >>break;
> >>}
> >> - set_page_pfns(vb, vb->pfns + vb->num_pfns, page);
> >> - vb->num_pages
On 10/22/2017 12:11 PM, Tetsuo Handa wrote:
Michael S. Tsirkin wrote:
- num_freed_pages = leak_balloon(vb, oom_pages);
+
+ /* Don't deflate more than the number of inflated pages */
+ while (npages && atomic64_read(>num_pages))
+ npages -= leak_balloon(vb,
On 10/22/2017 01:20 PM, Tetsuo Handa wrote:
Wei Wang wrote:
The balloon_lock was used to synchronize the access demand to elements
of struct virtio_balloon and its queue operations (please see commit
e22504296d). This prevents the concurrent run of the leak_balloon and
fill_balloon functions,
On 10/22/2017 11:19 AM, Michael S. Tsirkin wrote:
On Fri, Oct 20, 2017 at 07:54:23PM +0800, Wei Wang wrote:
This patch series intends to summarize the recent contributions made by
Michael S. Tsirkin, Tetsuo Handa, Michal Hocko etc. via reporting and
discussing the related deadlock issues on the
