Writing data correctly...

Shamelessly lifting these links from the Android blog. It's just that important.

• http://lwn.net/Articles/322823/
• http://blogs.gnome.org/alexl/2009/03/16/ext4-vs-fsync-my-take/
• http://thunk.org/tytso/blog/2009/03/12/delayed-allocation-and-the-zero-length-file-problem/
• http://thunk.org/tytso/blog/2009/03/12/delayed-allocation-and-the-zero-length-file-problem/