Re: [sqlite] light weight write barriers

[Alan Cox]

> > Barriers are pretty much universal as you need them for power off !
> 
> I'm afraid, no storage (drives, if you like this term more) at the moment supports 
> barriers and, as far as I know the storage history, has never supported.

The ATA cache flush is a write barrier, and given you have no NV cache
visible to the controller it's the same thing.

> Instead, what storage does support in this area are:

Yes - the devil is in the detail once you go beyond simple capabilities.

Alan
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