Commit aaec7c03 authored by Paolo Bonzini's avatar Paolo Bonzini

KVM: x86: avoid useless copy of cpufreq policy

struct cpufreq_policy is quite big and it is not a good idea
to allocate one on the stack.  Just use cpufreq_cpu_get and
cpufreq_cpu_put which is even simpler.
Reported-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 4f337faf
......@@ -7190,15 +7190,15 @@ static void kvm_timer_init(void)
if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) {
#ifdef CONFIG_CPU_FREQ
struct cpufreq_policy policy;
struct cpufreq_policy *policy;
int cpu;
memset(&policy, 0, sizeof(policy));
cpu = get_cpu();
cpufreq_get_policy(&policy, cpu);
if (policy.cpuinfo.max_freq)
max_tsc_khz = policy.cpuinfo.max_freq;
policy = cpufreq_cpu_get(cpu);
if (policy && policy->cpuinfo.max_freq)
max_tsc_khz = policy->cpuinfo.max_freq;
put_cpu();
cpufreq_cpu_put(policy);
#endif
cpufreq_register_notifier(&kvmclock_cpufreq_notifier_block,
CPUFREQ_TRANSITION_NOTIFIER);
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment