commit 3a27203102ebfa67bd0bced05b1def499bb59db2
author Greg Kroah-Hartman <gregkh@linuxfoundation.org> Sun Oct 14 08:34:31 2018 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Sun Oct 14 08:34:31 2018 +0200
tree 1dbcb719202b0fe22c143e913f281f49a1b37c3d
parent a24a0eb9c8972803a8707041fc9ed9080cdaf1b9
parent 4628a64591e6cee181237060961e98c615c33966

Merge tag 'libnvdimm-fixes-4.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Dan writes:
  "libnvdimm/dax 4.19-rc8

   * Fix a livelock in dax_layout_busy_page() present since v4.18. The
     lockup triggers when truncating an actively mapped huge page out of
     a mapping pinned for direct-I/O.

   * Fix mprotect() clobbers of _PAGE_DEVMAP. Broken since v4.5
     mprotect() clears this flag that is needed to communicate the
     liveness of device pages to the get_user_pages() path."

* tag 'libnvdimm-fixes-4.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  mm: Preserve _PAGE_DEVMAP across mprotect() calls
  filesystem-dax: Fix dax_layout_busy_page() livelock