Re: [PATCH 05/11] PM: Enable early suspend through /sys/power/state

Pavel Machek
2009-02-02T11:44:01Z

On Sat 2009-01-31 10:49:16, Alan Stern wrote:
> On Fri, 30 Jan 2009, Arve Hj?nnev?g wrote:
>
> > > No, please don't break compatibility like this. You changed semantics
> > > of 'mem'...
> > >
> > > Just add another two states, for example "auto-mem" and
> > > "auto-standby", and make them enter mem/standby when required.
> > >
> >
> > What would you want to happen if someone writes "mem"? If we just call
> > enter_state, it will fail and return an error if a wakelock is locked.
> > We can call request_suspend_state and then wait for another thread to
> > write "on", but this still requires user-space changes to work
> > correctly. If the goal is to allow the kernel to be compiled with
> > wakelock and early suspend support while preserving the old behaviour
> > if wakelocks are not used, then the first option is better.
>
> This is exactly what I am complaining about in another thread. The
> code should be written so that when the user writes "mem", the system
> goes into suspend even if some wakelocks are locked.

Yes please.
Pavel
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