Displaying 4 results from an estimated 4 matches for "do_shrink_slab".
2018 Jul 22
2
[PATCH v36 2/5] virtio_balloon: replace oom notifier with shrinker
On Fri, Jul 20, 2018 at 04:33:02PM +0800, Wei Wang wrote:
> The OOM notifier is getting deprecated to use for the reasons mentioned
> here by Michal Hocko: https://lkml.org/lkml/2018/7/12/314
>
> This patch replaces the virtio-balloon oom notifier with a shrinker
> to release balloon pages on memory pressure.
>
> In addition, the bug in the replaced virtballoon_oom_notify
2018 Jul 22
2
[PATCH v36 2/5] virtio_balloon: replace oom notifier with shrinker
On Fri, Jul 20, 2018 at 04:33:02PM +0800, Wei Wang wrote:
> The OOM notifier is getting deprecated to use for the reasons mentioned
> here by Michal Hocko: https://lkml.org/lkml/2018/7/12/314
>
> This patch replaces the virtio-balloon oom notifier with a shrinker
> to release balloon pages on memory pressure.
>
> In addition, the bug in the replaced virtballoon_oom_notify
2018 Jul 23
0
[PATCH v36 2/5] virtio_balloon: replace oom notifier with shrinker
...>num_pages && pages_to_free) {
>> + pages_to_free = balloon_pages_to_shrink - pages_freed;
>> + pages_freed += leak_balloon(vb, pages_to_free);
>> + }
>> + update_balloon_size(vb);
> Are you sure that this is never called if count returned 0?
Yes. Please see do_shrink_slab, it just returns if count is 0.
>
>> +
>> + return pages_freed / VIRTIO_BALLOON_PAGES_PER_PAGE;
>> +}
>> +
>> +static unsigned long virtio_balloon_shrinker_count(struct shrinker *shrinker,
>> + struct shrink_control *sc)
>> +{
>> + struct...
2018 Jul 23
1
[PATCH v36 2/5] virtio_balloon: replace oom notifier with shrinker
...{
> > > + pages_to_free = balloon_pages_to_shrink - pages_freed;
> > > + pages_freed += leak_balloon(vb, pages_to_free);
> > > + }
> > > + update_balloon_size(vb);
> > Are you sure that this is never called if count returned 0?
>
> Yes. Please see do_shrink_slab, it just returns if count is 0.
>
> >
> > > +
> > > + return pages_freed / VIRTIO_BALLOON_PAGES_PER_PAGE;
> > > +}
> > > +
> > > +static unsigned long virtio_balloon_shrinker_count(struct shrinker *shrinker,
> > > + struct shr...