On Mon, 30 May 2011 09:13:27 +0200, Oliver Neukum said:
> Am Montag, 30. Mai 2011, 03:53:18 schrieb david@lang.hm:

> > if what you are wanting is the ability to say 'these things must be 
> > written before these other things to keep them from being corrupted, but I 
> > don't care when they get written (or if they get lost in a crash)' then 
> > what you want isn't fsync, it's a barrier.
> 
> Yes, but where is the problem?

The problem is that *from userspace*, the closest approximation to a barrier
is fsync().