[PATCH 0/4][Zesty SRU] Fix for LP #1674838

[Seth Forshee]

BugLink: http://bugs.launchpad.net/bugs/1674838

Some of the Power9 enablement patches in zesty are triggering a BUG
statement in migration_entry_to_page() for many users. The offending
patches don't appear to be included for any functionality the provide
but rather to make a later patch a clean cherry pick. The backport of
that patch is not difficult, so this series reverts all three patches
and then applies a backport of the last patch.


Aneesh Kumar K.V (1):
  mm/ksm: handle protnone saved writes when making page write protect

Seth Forshee (3):
  Revert "mm/ksm: handle protnone saved writes when making page write
    protect"
  Revert "mm, ksm: convert write_protect_page() to use
    page_vma_mapped_walk()"
  Revert "mm: introduce page_vma_mapped_walk()"

 include/linux/rmap.h |  26 -------
 mm/Makefile          |   6 +-
 mm/huge_memory.c     |   9 +--
 mm/ksm.c             |  36 +++++-----
 mm/page_vma_mapped.c | 188 ---------------------------------------------------
 5 files changed, 22 insertions(+), 243 deletions(-)
 delete mode 100644 mm/page_vma_mapped.c