Re: [PATCH 2/3] ide: add ide_[un]lock_hwgroup() helpers

From: Bartlomiej Zolnierkiewicz
Date: Sat Dec 13 2008 - 18:19:14 EST



[ Sorry for the late reply. ]

On Wednesday 19 November 2008, Michael Schmitz wrote:
> > - while (!hwgroup->busy) {
> > - hwgroup->busy = 1;
> > - /* for atari only */
> > - ide_get_lock(ide_intr, hwgroup);
> > + while (!ide_lock_hwgroup(hwgroup)) {
>
> Something I've run into while working on the locking stuff: what happens if the
> above ide_lock_hwgroup(hwgroup) sleeps for long enough to trigger the request
> timer?

AFAICS this happens before the hwgroup timeout timer is armed and IDE is not
using block layer request timers yet so we should be fine here..

Thanks,
Bart
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