Revert "fix gcc4.7 compile - and fix small type o"

This reverts commit c72f992e5823d8a09c9c73dfad3725cc0eda9b96.
Asynchronous Fsync: initial extraction of Async Fsync from HTC

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:
	fs/Kconfig