Re: [rfc] Ignore Fsync Calls in Laptop_Mode

[david]

On Mon, 30 May 2011, Valdis.Kletnieks@xxxxxx wrote:

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

good point, there really should be some way of doing a barrier from 
userspace.

David Lang
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