fix, PEBKAC, bring back system specific pagesizes for m{,un}map_any() routines

Signed-off-by: Sebastian Freundt <freundt@ga-group.nl>
Merge branch 'core/file' into next

* core/file:
  fix, PEBKAC, bring back system specific pagesizes for m{,un}map_any() routines
Merge branch 'next'

* next:
  fix, PEBKAC, bring back system specific pagesizes for m{,un}map_any() routines