setlock
err = setlock(devfd, lock);
if (setlock(fd, 1)) {
int setlock __P((int, int));
if (setlock(fd, 0)) {
setlock(fd, 0);
if (setlock(fd, 1)) {
if (setlock(fd, 0)) {
error = setlock(vp, &flock, flag, cred);
spec_lockcsp(struct snode *csp, int intr, int setlock, int hold)
if (setlock)