- Modify fs/ntfs/inode.c::ntfs_read_locked_inode() to return an error
  code and update callers, i.e. ntfs_iget(), to pass that error code
  up instead of just using -EIO.
- Modifications to super.c to ensure that both mount and remount
  cannot set any write related options when the driver is compiled
  read-only.
- Optimize block resolution in fs/ntfs/aops.c::ntfs_read_block() to
  cache the current run list element. This should improve performance
  when reading very large and/or very fragmented data.