rem: rootfs_ioctl(fs_cookie _fs, fs_vnode _v, file_cookie _cookie, ulong op, void *buf, size_t len)
add: rootfs_ioctl(fs_volume _fs, fs_vnode _v, fs_cookie _cookie, ulong op, void *buf, size_t len)
context: rootfs_ioctl(fs_cookie _fs, fs_vnode _v, file_cookie _cookie, ulong op, void *buf, size_t len){	TRACE(("rootfs_ioctl: vnode %p, cookie %p, op %ld, buf %p, len %ld\n", _v, _cookie, op, buf, len));	return EINVAL;}