[PULL] vhost: cleanups and fixes

["Michael S. Tsirkin" <mst@redhat.com>]

The following changes since commit 29dcea88779c856c7dc92040a0c01233263101d4:

  Linux 4.17 (2018-06-03 14:15:21 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git tags/for_linus

for you to fetch changes up to aa15783ee62d57d69433101ede3e3ed11e48161d:

  virtio: update the comments for transport features (2018-06-07 22:17:40 +0300)

----------------------------------------------------------------
virtio, vhost: features, fixes

VF support for virtio.
Free page hint request support for VM migration.
DMA barriers for virtio strong barriers.
Bugfixes.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

----------------------------------------------------------------
Michael S. Tsirkin (2):
      virtio_ring: switch to dma_XX barriers for rpmsg
      vhost: fix info leak due to uninitialized memory

Tiwei Bie (2):
      virtio_pci: support enabling VFs
      virtio: update the comments for transport features

Wei Wang (4):
      mm: support reporting free page blocks
      virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT
      mm/page_poison: expose page_poisoning_enabled to kernel modules
      virtio-balloon: VIRTIO_BALLOON_F_PAGE_POISON

 drivers/vhost/vhost.c               |   3 +
 drivers/virtio/virtio_balloon.c     | 298 +++++++++++++++++++++++++++++++-----
 drivers/virtio/virtio_pci_common.c  |  30 ++++
 drivers/virtio/virtio_pci_modern.c  |  14 ++
 include/linux/mm.h                  |   6 +
 include/linux/virtio_ring.h         |   4 +-
 include/uapi/linux/virtio_balloon.h |   7 +
 include/uapi/linux/virtio_config.h  |  16 +-
 mm/page_alloc.c                     |  97 ++++++++++++
 mm/page_poison.c                    |   6 +
 10 files changed, 439 insertions(+), 42 deletions(-)