Andre Hedrick wrote:
> On Sat, 9 Sep 2000 [EMAIL PROTECTED] 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       [EMAIL PROTECTED] /
/_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 [EMAIL PROTECTED]
Please read the FAQ at http://www.tux.org/lkml/

Reply via email to