add fs option

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>

1 files changed, 11 insertions, 3 deletions

diff --git a/hw_vars b/hw_vars
index 5faf22d..9708511 100755
--- a/hw_vars
+++ b/hw_vars
@@ -18,9 +18,17 @@ PIDFILE=$SPARSE_ROOT/${0/.*case-/}.pid
 # sparse files won't work as expected on tmpfs/nfs
 create_sparse_root () {
 	$CMD truncate -s $((mem)) $SPARSE_ROOT.img
-	# $CMD mkfs.btrfs $SPARSE_ROOT.img > /dev/null
-	# $CMD mkfs.ext4 -q -F $SPARSE_ROOT.img
-	$CMD mkfs.xfs -q $SPARSE_ROOT.img
+	case ${fs:-xfs} in
+		btrfs)
+			$CMD mkfs.btrfs $SPARSE_ROOT.img > /dev/null
+			;;
+		ext4)
+			$CMD mkfs.ext4 -q -F $SPARSE_ROOT.img
+			;;
+		xfs)
+			$CMD mkfs.xfs -q $SPARSE_ROOT.img
+			;;
+	esac
 	[[ -d $SPARSE_ROOT ]] || mkdir $SPARSE_ROOT
 
 	# check if already mounted