[GIT PULL] VFIO fix for v4.17

[Alex Williamson]

Hi Linus,

Sorry for the last minute pull request, a bisection has just identified
the commit reverted below as introducing a bad page state issue for
vfio users.  Please pull for v4.17.  Thanks,

Alex

The following changes since commit 0512e0134582ef85dee77d51aae77dcd1edec495:

  Merge tag 'xfs-4.17-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux (2018-05-31 16:23:07 -0500)

are available in the Git repository at:

  git://github.com/awilliam/linux-vfio.git tags/vfio-v4.17

for you to fetch changes up to 89c29def6b0101fff66a3d74d0178b844f88d732:

  Revert "vfio/type1: Improve memory pinning process for raw PFN mapping" (2018-06-02 08:41:44 -0600)

----------------------------------------------------------------
VFIO fix v4.17

 - Revert a pfn page mapping optimization identified as introducing
   a bad page state regression (Alex Williamson)

----------------------------------------------------------------
Alex Williamson (1):
      Revert "vfio/type1: Improve memory pinning process for raw PFN mapping"

 drivers/vfio/vfio_iommu_type1.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)