scripts/ceph: remove subshell and cd

The Ceph scripts can now be run from any directory; they don't depend on
their $PWD being the script location anymore.

Change-Id: Iff883a3e9b8ba2d0a6193e2f5c047eb9d7d423fd
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/401657
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>

test/common/autotest_common.sh

@@ -312,14 +312,14 @@ function rbd_setup() {
 	if hash ceph; then
 		export RBD_POOL=rbd
 		export RBD_NAME=foo
-		(cd $rootdir/scripts/ceph && ./start.sh)
+		$rootdir/scripts/ceph/start.sh
 		rbd create $RBD_NAME --size 1000
 	fi
 }
 
 function rbd_cleanup() {
 	if hash ceph; then
-		(cd $rootdir/scripts/ceph && ./stop.sh || true)
+		$rootdir/scripts/ceph/stop.sh || true
 	fi
 }