On Wed, 2007-01-31 at 12:50 +0100, Ingo Molnar wrote: > * Daniel Walker <[EMAIL PROTECTED]> wrote: > > > -module_init(init_acpi_pm_clocksource); > > +/* > > + * This clocksource is removed from the clocksource_initcall > > + * macro since it's mandatory for it to be in fs_initcall as the > > + * highest initcall level, or else it doesn't work properly with > > + * it's PCI fix ups. > > + */ > > +fs_initcall(init_acpi_pm_clocksource); > > ugh - this bit looks quite interesting. > > what's the purpose of this patch? Switching to high-res timers should be > done late in the bootup - in case there's a problem it's more > debuggable, etc.
The timekeeping code, and hrt/dynamic tick both wait till after boot up to switch to high res mode .. The specific code block you commented on above was added cause acpi_pm has special pci fixups that don't function properly earlier in boot up. So it can't be arbitrarily raised to order in the initcall sequence .. Daniel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
