ToDo/Notes:
- Find and fix bugs.
- In between ntfs_prepare/commit_write, need exclusion between
simultaneous file extensions. This is given to us by holding i_sem
on the inode. The only places in the kernel when a file is resized
are prepare/commit write and ntfs_truncate() for both of which i_sem
is held. Just have to be careful in read-/writepage and other helpers
not running under i_sem that we play nice... Also need to be careful
with initialized
