Messages in this thread | | | Date | Fri, 13 Nov 1998 11:32:00 +1300 | From | Chris Wedgwood <> | Subject | Re: elevator algorithm bug in ll_rw_blk.c |
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On Mon, Nov 09, 1998 at 11:37:43PM +0000, Stephen C. Tweedie wrote:
> <Wolfgang.Oertl@uibk.ac.at> said: > > > as v2.2 is expected soon I better bring this topic up now. As you > > know the "elevator algorihm" is employed for disk I/O, but -- it > > *looks* broken to me. > > It isn't!
How long has it not been broken for?
I ask this because back aroun 2.1.26 I made a small char device which allowed to to log and then dump the sequences of disk update produced during a `sync' operation.
Anyhow, the net result of this was that they were not optimally order, not even close.
-cw
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