rcutorture: Add datestamp argument to kvm.sh

Allow datestamp to be specified to allow tests to be broken up and run
in parallel.

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

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 46c75ee..9fcceed 100644 (file)
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -50,11 +50,13 @@ configs=" sysidleY.2013.06.19a \
          PT2-NH \
          NT1-nh \
          NT3-NH"
+ds=`date +%Y.%m.%d-%H:%M:%S`
 
 usage () {
        echo "Usage: $scriptname optional arguments:"
        echo "       --builddir absolute-pathname"
        echo "       --configs \"config-file list\""
+       echo "       --datestamp string"
        echo "       --duration minutes"
        echo "       --rcu-kvm absolute-pathname"
        echo "       --results absolute-pathname"
@@ -98,6 +100,11 @@ do
                configs="$2"
                shift
                ;;
+       --datestamp)
+               checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
+               ds=$2
+               shift
+               ;;
        --duration)
                checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' error
                dur=$2
@@ -147,13 +154,12 @@ if test -z "$resdir"
 then
        resdir=$KVM/res
        mkdir $resdir || :
-       ds=`date +%Y.%m.%d-%H:%M:%S`
-       mkdir $resdir/$ds
-       echo Datestamp: $ds
 else
-       mkdir -p "$resdir"
-       ds=""
+       mkdir -p "$resdir" || :
 fi
+mkdir $resdir/$ds
+echo Datestamp: $ds
+
 pwd > $resdir/$ds/testid.txt
 if test -d .git
 then