[PATCH v4 0/3] virtio-balloon: some improvements

This series is split from the "Virtio-balloon: support free page
reporting" series to make some improvements.

ChangeLog:
v3->v4:
- use kzalloc to allocate the vb struct so that we don't need to zero
  initialize each field one by one later;
- also remove vb->shrinker.batch = 0, which is not needed now.
v2->v3:
- shrink the balloon pages according to the amount requested by the
  claimer, instead of using a user specified number;
v1->v2:
- register the shrinker when VIRTIO_BALLOON_F_DEFLATE_ON_OOM is
  negotiated.

Wei Wang (3):
  virtio-balloon: remove BUG() in init_vqs
  virtio-balloon: kzalloc the vb struct
  virtio_balloon: replace oom notifier with shrinker

 drivers/virtio/virtio_balloon.c | 125 +++++++++++++++++++++-------------------
 1 file changed, 67 insertions(+), 58 deletions(-)

-- 
2.7.4