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author | Zhao Yakui <yakui.zhao@intel.com> | 2011-01-10 08:35:44 (GMT) |
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committer | Len Brown <len.brown@intel.com> | 2011-01-10 17:35:04 (GMT) |
commit | daef1f35ea1e2cca125eecd5f078f40b55eb9105 (patch) | |
tree | ba3cfad2743cbd70a6d36dfe645c427a1634eeb1 /include/acpi | |
parent | 3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff) | |
download | linux-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')
0 files changed, 0 insertions, 0 deletions