Re: x86, vmi: TSC going backwards check in vmi clocksource

From: Ingo Molnar
Date: Fri Feb 20 2009 - 12:59:00 EST



* Alok Kataria <akataria@xxxxxxxxxx> wrote:

> static cycle_t read_real_cycles(void)
> {
> - return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL);
> + cycle_t ret = (cycle_t)vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL);
> + return ret >= clocksource_vmi.cycle_last ?
> + ret : clocksource_vmi.cycle_last;

btw., could you please clean this up to use max()?

Ingo
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