Btrfs now has changed to delete subvolume/snapshot asynchronously,
which means that after umount, if we've already deleted 'ext2_saved',
rollback can still be completed, which should not.
So this adds a regression test for this.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
_scratch_unmount
+# Convert it to btrfs, mount it and delete "ext2_saved"
+$BTRFS_CONVERT_PROG $SCRATCH_DEV >> $seqres.full 2>&1 || \
+ _fail "btrfs-convert failed"
+_scratch_mount || _fail "Could not mount new btrfs fs"
+$BTRFS_UTIL_PROG subvolume delete $SCRATCH_MNT/ext2_saved >> $seqres.full 2>&1 ||
+ _fail "failed to delete ext2_saved subvolume"
+_scratch_unmount
+
+# Now restore the ext4 device, expecting a failure
+$BTRFS_CONVERT_PROG -r $SCRATCH_DEV >> $seqres.full 2>&1
+[ $? -eq 1 ] || _fail "Failure is expected, but btrfs-convert returns with rollback complete"
+
# success, all done
status=0
exit