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authorZhao Yakui <yakui.zhao@intel.com>2011-01-10 11:35:44 +0300
committerLen Brown <len.brown@intel.com>2011-01-10 20:35:04 +0300
commitdaef1f35ea1e2cca125eecd5f078f40b55eb9105 (patch)
treeba3cfad2743cbd70a6d36dfe645c427a1634eeb1 /include/acpi/processor.h
parent3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff)
downloadlinux-daef1f35ea1e2cca125eecd5f078f40b55eb9105.tar.xz
ACPI: Check the returned value of set_cpus_allowed_ptr before T-state operation
Now before it executes the T-state operation on one CPU, it will try to migrate to the target CPU. Especially this is required on the system that uses the MSR_IA32_THERMAL_CONTROL register to switch T-state. But unfortunately it doesn't check whether the migration is successful or not. In such case we will get/set the incorrect T-state on the offline CPU as it fails in the migration to the offline CPU. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi/processor.h')
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