Merge misc fixes from Andrew Morton:
"Five fixes.
Subsystems affected by this patch series: MAINTAINERS, mm/pagemap,
mm/swap, and mm/hugetlb"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged
mm: validate inode in mapping_set_error()
mm: mmap: Fix general protection fault in unlink_file_vma()
MAINTAINERS: Antoine Tenart's email address
MAINTAINERS: change hardening mailing list
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