rem: TRACE(("devfs_ioctl: vnode 0x%x, cookie 0x%x, op %d, buf 0x%x, len 0x%x\n", _v, _cookie, op, buf, len));
add: TRACE(("devfs_ioctl: vnode %p, cookie %p, op %ld, buf %p, len %ld\n", _v, _cookie, op, buf, len));
context: devfs_ioctl(fs_cookie _fs, fs_vnode _v, file_cookie _cookie, ulong op, void *buf, size_t len){	struct devfs *fs = _fs;	struct devfs_vnode *v = _v;	struct devfs_cookie *cookie = _cookie;	TRACE(("devfs_ioctl: vnode 0x%x, cookie 0x%x, op %d, buf 0x%x, len 0x%x\n", _v, _cookie, op, buf, len));		if (v->stream.type == STREAM_TYPE_DEVICE) {		switch (op) {			case IOCTL_DEVFS_GET_PARTITION_INFO:				return devfs_get_partition_info( fs, v, cookie, buf, len );			case IOCTL_DEVFS_SET_PARTITION:				return devfs_set_partition( fs, v, cookie, buf, len );		}		return v->stream.u.dev.calls->control(cookie->u.dev.dcookie, op, buf, len);	}	return EINVAL;}