Messages in this thread | | | Date | Thu, 25 Aug 2005 19:14:28 +0100 | From | Jon Escombe <> | Subject | Re: [Hdaps-devel] Re: HDAPS, Need to park the head for real |
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Alan Cox wrote: > @@ -1661,6 +1671,9 @@ > where = ELEVATOR_INSERT_FRONT; > rq->flags |= REQ_PREEMPT; > } > + if (action == ide_next) > + where = ELEVATOR_INSERT_FRONT; > + > __elv_add_request(drive->queue, rq, where, 0); > ide_do_request(hwgroup, IDE_NO_IRQ); > spin_unlock_irqrestore(&ide_lock, flags); > > Also puzzles me- why is this needed ?
I wanted the park command to get in at the head of the queue (behind the currently executing request).
Contrary to the comments for ide_do_drive_cmd(), ide_next didn't appear to do anything to achieve this? At least from my initial testing before I made this change - it could take a second or so for the park command to be issued if the disk was busy....
Regards, Jon.
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