rcutorture: Add --bootargs argument to specify additional boot arguments

This commit allows easy specification of trace_event lists, among other
things.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Greg KH <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 1 deletions

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 6c67d0ca8c9a..2fb91d4f7996 100644
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -40,6 +40,7 @@ kversion=""
 
 usage () {
         echo "Usage: $scriptname optional arguments:"
+        echo "       --bootargs kernel-boot-arguments"
         echo "       --builddir absolute-pathname"
         echo "       --buildonly"
         echo "       --configs \"config-file list\""
@@ -78,6 +79,11 @@ checkarg () {
 while test $# -gt 0
 do
         case "$1" in
+        --bootargs)
+                checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
+                RCU_BOOTARGS="$2"
+                shift
+                ;;
         --builddir)
                 checkarg --builddir "(absolute pathname)" "$#" "$2" '^/' error
                 builddir=$2
@@ -183,6 +189,6 @@ do
         rd=$resdir/$ds/$CF
         mkdir $rd || :
         echo Results directory: $rd
-        kvm-test-1-rcu.sh $CONFIGFRAG/$kversion/$CF $builddir $rd $dur "-nographic" "rcutorture.test_no_idle_hz=1 rcutorture.verbose=1"
+        kvm-test-1-rcu.sh $CONFIGFRAG/$kversion/$CF $builddir $rd $dur "-nographic" "rcutorture.test_no_idle_hz=1 rcutorture.verbose=1 $RCU_BOOTARGS"
 done
 # Tracing: trace_event=rcu:rcu_nocb_grace_period,rcu:rcu_grace_period,rcu:rcu_grace_period_init,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_torture_read,rcu:rcu_invoke_callback,rcu:rcu_fqs,rcu:rcu_dyntick,rcu:rcu_unlock_preempted_task