cpuinfo is not writable

Author: Michael Vasseur

icpc-wf/disable-turboboost_ht

@@ -14,11 +14,9 @@ for cpu in /sys/devices/system/cpu/cpu* ; do
         chmod u+w $cpu/cpufreq/scaling_governor
     fi
     for boundary in min max; do
-        for fact in cpuinfo scaling; do
-            if [ -f $cpu/cpufreq/${fact}_${boundary}_freq ]; then
-                chmod u+w $cpu/cpufreq/${fact}_${boundary}_freq
-            fi
-        done
+        if [ -f $cpu/cpufreq/scaling_${boundary}_freq ]; then
+            chmod u+w $cpu/cpufreq/scaling_${boundary}_freq
+        fi
     done
 
     # Set governor to performance and do not allow changes later on.
@@ -28,12 +26,10 @@ for cpu in /sys/devices/system/cpu/cpu* ; do
     fi
 
     # Hardware maximum performance.
-    for fact in cpuinfo scaling; do
-        if [ -f $cpu/cpufreq/${fact}_min_freq ] && [ -f $cpu/cpufreq/${fact}_max_freq ]; then
-            cp $cpu/cpufreq/${fact}_{max,min}_freq
-            chmod a-w $cpu/cpufreq/scaling_{max,min}_freq
-        fi
-    done
+    if [ -f $cpu/cpufreq/scaling_min_freq ] && [ -f $cpu/cpufreq/scaling_max_freq ]; then
+        cp $cpu/cpufreq/scaling_{max,min}_freq
+        chmod a-w $cpu/cpufreq/scaling_{max,min}_freq
+    fi
 
     # Disable all but one thread on each core.
     core_id=$(cat $cpu/topology/core_id)