On Thursday 01 February 2007 11:00, [email protected] wrote:
> Index: linux-2.6.20-rc5/arch/x86_64/kernel/apic.c
> ===================================================================
> --- linux-2.6.20-rc5.orig/arch/x86_64/kernel/apic.c
> +++ linux-2.6.20-rc5/arch/x86_64/kernel/apic.c
> @@ -63,6 +63,9 @@ int using_apic_timer __read_mostly = 0;
>
> static void apic_pm_activate(void);
>
> +extern void time_update_mt_guess(void);
No externs in .c files
> +inline u64 mt_to_nsec(u64 mt)
> +{
> + u64 ret;
> + ret = ((mt & 0xffffff) * vxtime.mt_q) >> 32;
> + mt >>= 24;
> + ret += ((mt & 0xffffff) * vxtime.mt_q) >> 8;
> + mt >>= 24;
> + ret += ( mt * vxtime.mt_q) << 16;
> + return ret;
Why so complicated? Isn't a single multiply good enough?
-Andi
-
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