Messages in this thread | | | Date | Mon, 9 May 2005 21:17:22 +0200 | From | Pavel Machek <> | Subject | Re: Suspend/Resume |
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On Po 09-05-05 09:07:21, James Bottomley wrote: > On Mon, 2005-05-09 at 12:13 +0200, Pavel Machek wrote: > > In IDE we do that to reliably flush drive caches... If write caching > > actually works on SCSI, we should not need that hacks. > > Define "works". Actual write caching works fine with IDE (it doesn't > lose the data). On the other hand, turning the cache off or flushing it > can be problematic because not all IDE devices respond to these > commands. > > So, what I think you're saying is that you don't want the internal > drives to spin down, but you do want to send a synchronize cache command > to those which have a writeback cache enabled?
Yes, something like that. I don't care if drivers are spinning or not, but I need caches to be properly flushed and drive ready for system powerdown. Pavel -- Boycott Kodak -- for their patent abuse against Java. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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