mkfs -t btrfs /dev/vdd
mkfs -t btrfs /dev/vdc
mkfs -t btrfs /dev/vda
mkfs -t btrfs /dev/vdb
mount -t btrfs /dev/vda /fs/vda
mount -t btrfs /dev/vdb /fs/vdb
mount -t btrfs /dev/vdc /fs/vdc
mount -t btrfs /dev/vdd /fs/vdd
export TEST_DIR=/fs/vda
export TEST_DEV=/dev/vda
export FSTYP=btrfs
export SCRATCH_MNT=/fs/scratch
mkdir /fs/scratch -p
export SCRATCH_DEV_POOL="/dev/vdb /dev/vdc /dev/vdd"
./check generic/224 generic/231 generic/274 generic/299 generic/300