[PATCH 5/9] rcutorture/kvm.sh: Support execution from any directory

[SeongJae Park <sj38.park@gmail.com>]

'kvm.sh' for rcutorture is restricting user to execute it from top of
linux source tree.  It is just a subtle restriction, but users using it
for the first time could forget the restriction and be confused.
Moreover, it makes commands a little longer and the long commands could
frustrate debugging people.  This commit let users to call the script
from any location.

Signed-off-by: SeongJae Park <sj38.park@gmail.com>
---
 tools/testing/selftests/rcutorture/bin/kvm.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 36f7f499698f..cd62933e33d7 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -1,8 +1,7 @@
 #!/bin/bash
 #
 # Run a series of 14 tests under KVM.  These are not particularly
-# well-selected or well-tuned, but are the current set.  Run from the
-# top level of the source tree.
+# well-selected or well-tuned, but are the current set.
 #
 # Edit the definitions below to set the locations of the various directories,
 # as well as the test duration.
@@ -34,6 +33,8 @@ T=/tmp/kvm.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
+cd `dirname $scriptname`/../../../../../
+
 dur=$((30*60))
 dryrun=""
 KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
-- 
2.13.0