PATCH: Forcible delaying of UFS (soft)updates

[Alfred Perlstein]

* Marko Zec <zec at tel.fer.hr> [030411 19:01] wrote:
> 
> When enabled, the extended delaying policy introduces some additional
> changes:
> 
> - fsync() no longer flushes the buffers to disk, but returns immediately
> instead;

This is really the only bad thing I can see here, what about introducing
a slight delay and seeing if one can coalesce the writes?  Is this
part really needed?  Making fsync() not work is a good way to make
any sort of userland based transactional system break badly.

otherwise, way cool!

-Alfred