Messages in this thread | | | Date | Fri, 19 Mar 1999 19:04:57 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: disk head scheduling |
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On Fri, 19 Mar 1999, Stephen C. Tweedie wrote:
> > no, all requests (for all devices) are in a single 'queue'. (Per-major > > device queues is candidate 2.3 feature, it's really simple) > > No, each major has its own queue, defined either by the > blkdev[major].queue() strategy function or by > blkdev[major].current_request. As far as IN_ORDER is concerned, it will > only ever look at one such queue at a time.
oops, i got confused by the fact that i only have SCSI disks, which all have the same request queue. But this is due to SCSI_MAJOR ...
-- mingo
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