- Change fs/ntfs/super.c::ntfs_statfs() to not rely on BKL by moving
  the locking out of super.c::get_nr_free_mft_records() and taking and
  dropping the mftbmp_lock rw_semaphore in ntfs_statfs() itself.
- Bring attribute run list merging code (fs/ntfs/attrib.c) in sync with
  current userspace ntfs library code. This means that if a merge
  fails the original run lists are always left unmodified instead of
  being silently corrupted.
- Misc typo fixes.