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Groups > linux.kernel > #1340779
| From | "Denis V. Lunev" <den@openvz.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 2/2] virtio_balloon: export 'available' memory to balloon statistics |
| Date | 2016-02-23 16:30 +0100 |
| Message-ID | <r5n4u-7ic-5@gated-at.bofh.it> (permalink) |
| References | <r2QcF-1mI-3@gated-at.bofh.it> <r2QcF-1mI-1@gated-at.bofh.it> <r5mUO-7eb-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 02/23/2016 06:10 PM, Michael S. Tsirkin wrote: > On Tue, Feb 16, 2016 at 06:50:52PM +0300, Denis V. Lunev wrote: >> From: Igor Redko <redkoi@virtuozzo.com> >> >> Add a new field, VIRTIO_BALLOON_S_AVAIL, to virtio_balloon memory >> statistics protocol, corresponding to 'Available' in /proc/meminfo. >> >> It indicates to the hypervisor how big the balloon can be inflated >> without pushing the guest system to swap. >> >> Signed-off-by: Igor Redko <redkoi@virtuozzo.com> >> Reviewed-by: Roman Kagan <rkagan@virtuozzo.com> >> Signed-off-by: Denis V. Lunev <den@openvz.org> >> CC: Michael S. Tsirkin <mst@redhat.com> >> CC: Andrew Morton <akpm@linux-foundation.org> > Oops - I missed the fact that this affects host/guest ABI. > > Can you please submit ABI update proposal to virtio tc? > Spec patch would be even better. > > This is important to ensure there are no conflicts > with other features being developed in parallel. hmmm From my point of view ABI remains untouched. The guest can send any amount of <tag>;<value> pairs and unknown tags are properly ignored by the host. That is why I think that this change is safe.
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Re: [PATCH 2/2] virtio_balloon: export 'available' memory to balloon statistics "Michael S. Tsirkin" <mst@redhat.com> - 2016-02-23 16:20 +0100
Re: [PATCH 2/2] virtio_balloon: export 'available' memory to balloon statistics "Denis V. Lunev" <den@openvz.org> - 2016-02-23 16:30 +0100
Re: [PATCH 2/2] virtio_balloon: export 'available' memory to balloon statistics "Michael S. Tsirkin" <mst@redhat.com> - 2016-02-23 17:00 +0100
Re: [PATCH 2/2] virtio_balloon: export 'available' memory to balloon statistics "Denis V. Lunev" <den@openvz.org> - 2016-02-23 17:20 +0100
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