lkml.org 
[lkml]   [2010]   [May]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [linux-pm] [PATCH 1/8] PM: Add suspend block api.

> >> One if the benefit we get from using suspend is that an unprivileged
> >> app that does not have access to suspend blockers cannot prevent
> >> suspend. You lose this advantage if you trigger suspend only from the
> >> idle task.
> >>
> >>
> > If the process (privileged or unprivileged) doesn't want to suspend, why
> > not just provide an interface to allow suspend to be turned off at the
> > user level.  This could block the suspend cycle in itself, and you
> > shouldn't need fine grained off/on cycles.  If an application really
> > needs the system not to suspend then they (the user) should know the
> > consequences and power requirements for such a task.
> >
> > I didn't say it had to be only from the idle task; but, that is the most
> > logical place.  If the other threads are not idle then they really
> > require work and will most likely already have a bock on the suspend anyway.
> >
>
> I think you missed my point. Unprivileged processes should not be
> allowed to prevent suspend.

Currently, unpriviledged processes are allowed to eat power, for
example while(1). We should keep that behaviour at least by default.

--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2010-05-24 20:59    [W:0.072 / U:4.084 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site