tune_set          383 fs/gfs2/sys.c  	return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len);  \
tune_set          390 fs/gfs2/sys.c  	ssize_t r = tune_set(sdp, &sdp->sd_tune.gt_##name, 1, buf, len);      \