features=/sys/kernel/debug/sched_features;
sched=$(echo $1 | sed 's/^NO_//g');

if [[ `cat $features` == *$sched* ]]; then

  if [[ ! -z $2 ]]; then
    case $2 in
      0) echo "NO_$sched" > $features;;
      1) echo "$sched" > $features;;
    esac;
  fi;

  grep -oq NO_$sched $features;
  echo $?;
fi;

