Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "13 patches.

  Subsystems affected by this patch series: mm (kasan, pagealloc, rmap,
  hmm, and hugetlb), and hfs"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm/hugetlb: fix refs calculation from unaligned @vaddr
  hfs: add lock nesting notation to hfs_find_init
  hfs: fix high memory mapping in hfs_bnode_read
  hfs: add missing clean-up in hfs_fill_super
  lib/test_hmm: remove set but unused page variable
  mm: fix the try_to_unmap prototype for !CONFIG_MMU
  mm/page_alloc: further fix __alloc_pages_bulk() return value
  mm/page_alloc: correct return value when failing at preparing
  mm/page_alloc: avoid page allocator recursion with pagesets.lock held
  Revert "mm/page_alloc: make should_fail_alloc_page() static"
  kasan: fix build by including kernel.h
  kasan: add memzero init for unaligned size at DEBUG
  mm: move helper to check slub_debug_enabled