Re: WAPBL/cache flush and mfi(4)

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Fri, Aug 24, 2012 at 12:39:03PM -0400, Greg Troxel wrote:
> 
> It seems that after issuing a cache flush we should hold operations that
> write new data until the cache flush is complete.

Yes, I need to investigate that. It probably can be done with
scsipi_channel_freeze/thaw

> 
> Also, it seems like flush is a big hammer and we really want to ask that
> all writes before a barrier be done instead.  But I'm unclear on the
> details.

this needs to be investigated.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--