Merge branch 'page-table-check-support' of git://git.kernel.org/pub/scm/linux/kernel...

Merge branch 'page-table-check-support' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux into features

Add s390 support for CONFIG_PAGE_TABLE_CHECK.

* 'page-table-check-support' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: Enable page table check for debug_defconfig
  s390/pgtable: Add s390 support for page table check
  s390/pgtable: Use set_pmd_bit() to invalidate PMD entry
  mm/page_table_check: Pass mm_struct to pxx_user_accessible_page()

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>