tree 2c8a3d6fc364777226e03a664e2b824ad8f5dfe1
parent d02bd27bd33dd7e8d22594cd568b81be0cb584cd
author Igor Redko <redkoi@virtuozzo.com> 1458249548 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1458252574 -0700

virtio_balloon: export 'available' memory to balloon statistics

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>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>