cpu-partitioning: store helper state file to /run and few other tweaks

Helper state file for cpu-partitioning script was moved to /run/tuned.
Code for flags manipulation has been simplified.
The /run/tuned directory is explicitly cleared upon uninstallation
of Tuned to get rid of all leftovers / helper files before the reboot.
Added STORAGE_PERSISTENT variable pointing to /var/lib/tuned into
functions to be consistent.

Related: rhbz#1497182

Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>

profiles/cpu-partitioning/script.sh

@@ -2,7 +2,7 @@
 
 . /usr/lib/tuned/functions
 
-rebalance_cpus_file=no-rebalance-cpus.txt
+rebalance_cpus_file=$STORAGE/no-rebalance-cpus.txt
 
 change_sd_balance_bit()
 {
@@ -15,9 +15,9 @@ change_sd_balance_bit()
         for file in $(find /proc/sys/kernel/sched_domain/cpu$cpu -name flags -print); do
             flags_cur=$(cat $file)
             if [ $set_bit -eq 1 ]; then
-                flags_cur=$(echo $((flags_cur | 0x1)))
+                flags_cur=$((flags_cur | 0x1))
             else
-                flags_cur=$(echo $((flags_cur & 0xfffe)))
+                flags_cur=$((flags_cur & 0xfffe))
             fi
             echo $flags_cur > $file
         done

profiles/functions

@@ -8,6 +8,7 @@
 # Config
 #
 STORAGE=/run/tuned
+STORAGE_PERSISTENT=/var/lib/tuned
 STORAGE_SUFFIX=".save"
 
 #

tuned.spec

@@ -210,6 +210,8 @@ fi
 if [ "$1" == 0 ]; then
 # clear persistent storage
   rm -f %{_var}/lib/tuned/*
+# clear temporal storage
+  rm -f /run/tuned/*
 fi