On Thursday 29 January 2009, Pavel Machek wrote:
> On Mon 2009-01-19 20:54:54, Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rjw@xxxxxxx>
> >
> > Introduce boolean function system_entering_hibernation() returning
> > 'true' during the last phase of hibernation, in which devices are
> > being put into low power states and the sleep state (for example,
> > ACPI S4) is finally entered.
>
> ...this paragraph...
>
> > Index: linux-2.6/kernel/power/disk.c
> > ===================================================================
> > --- linux-2.6.orig/kernel/power/disk.c
> > +++ linux-2.6/kernel/power/disk.c
> > @@ -71,6 +71,14 @@ void hibernation_set_ops(struct platform
> > mutex_unlock(&pm_mutex);
> > }
>
> ....should go somewhere here. Because the name does not imply it is
> for last phases, only...
>
> > +static bool entering_platform_hibernation;
> > +
> > +bool system_entering_hibernation(void)
> > +{
> > + return entering_platform_hibernation;
> > +}
> > +EXPORT_SYMBOL(system_entering_hibernation);
> > +
> > #ifdef CONFIG_PM_DEBUG
> > static void hibernation_debug_sleep(void)
> > {
> > @@ -411,6 +419,7 @@ int hibernation_platform_enter(void)
> > if (error)
> > goto Close;
> >
> > + entering_platform_hibernation = true;
> > suspend_console();
>
> Why entering _platform_ hibernation? It will not be set for echo
> shutdown > disk case?
If I remember correctly, no, it won't.
Thanks,
Rafael
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