Messages in this thread |  | | Date | Tue, 12 Sep 2000 01:21:44 +0200 | From | almesber@lrc ... | Subject | Re: Notebook disk spindown |
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Andre Hedrick wrote: > On Sat, 9 Sep 2000 rob@mur.org.uk wrote: > > Would it be possible to detect when the disk spins up, and do the flush then? > Yes if you had a continuious polling of power status wrt standby.
I think the following flushing policy would work almost as well, while remaining generic:
- if there's a read that is not handled from the buffer cache, flush (write) all dirty buffers - if we need to flush (write) one dirty buffers, flush all others too
This wouldn't catch cases like an explicit spin-up without data I/O, but I don't think this is much of a problem in real life.
- Werner
-- _________________________________________________________________________ / Werner Almesberger, ICA, EPFL, CH werner.almesberger@ica.epfl.ch / /_IN_N_032__Tel_+41_21_693_6621__Fax_+41_21_693_6610_____________________/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
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