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?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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