The usage is 'btrfs subvolume set-default <id> <path>', not '<path> <path>'. The code happens to work because strotoull(path) returns 0, but it will fail if in the future we check the argument more strict in btrfs-progs. Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx> --- 254 | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/254 b/254 index 6320291..5216120 100755 --- a/254 +++ b/254 @@ -78,7 +78,7 @@ ls $SCRATCH_MNT/subvol echo "Creating file bar in subvol" dd if=/dev/zero of=$SCRATCH_MNT/subvol/bar bs=1M count=1 &> /dev/null echo "Setting subvol to the default" -btrfs subvolume set-default $SCRATCH_MNT/subvol $SCRATCH_MNT/subvol | _filter_scratch +btrfs subvolume set-default 0 $SCRATCH_MNT/subvol | _filter_scratch _scratch_remount echo "List root dir which is now subvol" ls $SCRATCH_MNT @@ -88,7 +88,7 @@ _scratch_mount "-o subvolid=0" echo "List root dir" ls $SCRATCH_MNT echo "Setting the root dir as the default again" -btrfs subvolume set-default $SCRATCH_MNT $SCRATCH_MNT | _filter_scratch +btrfs subvolume set-default 0 $SCRATCH_MNT | _filter_scratch _scratch_remount echo "List root dir" ls $SCRATCH_MNT -- 1.7.3.1 _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs