static char *overlay_fs_name(int type)
{
switch (type) {
+ case FS_EXT4:
+ return "ext4";
case FS_F2FS:
return "f2fs";
case FS_UBIFS:
foreachdir("/overlay/", handle_whiteout);
break;
+ case FS_EXT4:
case FS_F2FS:
case FS_UBIFS:
if (overlay_mount(v, overlay_fs_name(type)))