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x86: Use this_cpu_has for thermal_interrupt current cpu

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It is more effective to use a segment prefix instead of calculating the
address of the current cpu area amd then testing flags.

Signed-off-by: Christoph Lameter <[email protected]>
Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>
This commit is contained in:
Christoph Lameter 2011-03-12 12:50:46 +01:00 • committed by Tejun Heo
commit fe5042138b
1 changed files with 3 additions and 4 deletions
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7
arch/x86/kernel/cpu/mcheck/therm_throt.c
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@ -355,7 +355,6 @@ static void notify_thresholds(__u64 msr_val)
static void intel_thermal_interrupt(void)
{
__u64 msr_val;
struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
rdmsrl(MSR_IA32_THERM_STATUS, msr_val);
@ -367,19 +366,19 @@ static void intel_thermal_interrupt(void)
CORE_LEVEL) != 0)
mce_log_therm_throt_event(CORE_THROTTLED | msr_val);
if (cpu_has(c, X86_FEATURE_PLN))
if (this_cpu_has(X86_FEATURE_PLN))
if (therm_throt_process(msr_val & THERM_STATUS_POWER_LIMIT,
POWER_LIMIT_EVENT,
CORE_LEVEL) != 0)
mce_log_therm_throt_event(CORE_POWER_LIMIT | msr_val);
if (cpu_has(c, X86_FEATURE_PTS)) {
if (this_cpu_has(X86_FEATURE_PTS)) {
rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val);
if (therm_throt_process(msr_val & PACKAGE_THERM_STATUS_PROCHOT,
THERMAL_THROTTLING_EVENT,
PACKAGE_LEVEL) != 0)
mce_log_therm_throt_event(PACKAGE_THROTTLED | msr_val);
if (cpu_has(c, X86_FEATURE_PLN))
if (this_cpu_has(X86_FEATURE_PLN))
if (therm_throt_process(msr_val &
PACKAGE_THERM_STATUS_POWER_LIMIT,
POWER_LIMIT_EVENT,