Commit e9c7ac4a authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

[PATCH] adjuct cpu_khz in response to cpufreq changes

From: john stultz <johnstul@us.ibm.com>

This patch ensures that cpu_khz is adjusted on cpufreq notifications even
when the tsc timesource is not in use.  It fixes the mostly cosmetic issue
when using the ACPI PM timesource of /proc/cpuinfo not being properly
updated when cpu frequency was lowered.
parent a9ffde7e
......@@ -360,8 +360,9 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
if (variable_tsc)
cpu_data[freq->cpu].loops_per_jiffy = cpufreq_scale(loops_per_jiffy_ref, ref_freq, freq->new);
#ifndef CONFIG_SMP
if (use_tsc) {
if (cpu_khz)
cpu_khz = cpufreq_scale(cpu_khz_ref, ref_freq, freq->new);
if (use_tsc) {
if (variable_tsc) {
fast_gettimeoffset_quotient = cpufreq_scale(fast_gettimeoffset_ref, freq->new, ref_freq);
set_cyc2ns_scale(cpu_khz/1000);
......
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