Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "13 patches.

  Subsystems affected by this patch series: mips, mm (kfence, debug,
  pagealloc, memory-hotplug, hugetlb, kasan, and hugetlb), init, proc,
  lib, ocfs2, and mailmap"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mailmap: use private address for Michel Lespinasse
  ocfs2: fix data corruption by fallocate
  lib: crc64: fix kernel-doc warning
  mm, hugetlb: fix simple resv_huge_pages underflow on UFFDIO_COPY
  mm/kasan/init.c: fix doc warning
  proc: add .gitignore for proc-subset-pid selftest
  hugetlb: pass head page to remove_hugetlb_page()
  drivers/base/memory: fix trying offlining memory blocks with memory holes on aarch64
  mm/page_alloc: fix counting of free pages after take off from buddy
  mm/debug_vm_pgtable: fix alignment for pmd/pud_advanced_tests()
  pid: take a reference when initializing `cad_pid`
  kfence: use TASK_IDLE when awaiting allocation
  Revert "MIPS: make userspace mapping young by default"