Re: [RFT] solve "swsusp plays yoyo" with disks

[Pavel Machek <pavel@ucw.cz>]

hi!

> >>I'd like to get this tested under as many configurations as
> >>possible. With this, your hdd should no longer do "yoyo" (spindown,
> >>spinup, spindown) during suspend...
> >
> >
> >It looks like the patch is now in -mm (I use 2.6.13-rc3-mm1).
> >But my disks still yoyo during suspend. What more is needed? Some patch 
> >to ide-disk.c ?
> 
> I think I've found the problem.
> The attached patch stops the disks from spinning down and up on suspend.
> The patch applies to 2.6.13-rc3-mm1.
> 
> Signed-off-by: Michal Schmidt <xschmi00@stud.feec.vutbr.cz>

Thanks, applied, I'll eventually propagate it.

							Pavel

> diff -Nurp -X dontdiff.new linux-mm/drivers/ide/ide-io.c linux-mm.mich/drivers/ide/ide-io.c
> --- linux-mm/drivers/ide/ide-io.c	2005-06-30 01:00:53.000000000 +0200
> +++ linux-mm.mich/drivers/ide/ide-io.c	2005-07-21 16:59:46.000000000 +0200
> @@ -150,7 +150,7 @@ static void ide_complete_power_step(ide_
>  
>  	switch (rq->pm->pm_step) {
>  	case ide_pm_flush_cache:	/* Suspend step 1 (flush cache) complete */
> -		if (rq->pm->pm_state == 4)
> +		if (rq->pm->pm_state == PM_EVENT_FREEZE)
>  			rq->pm->pm_step = ide_pm_state_completed;
>  		else
>  			rq->pm->pm_step = idedisk_pm_standby;


-- 
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