autofs_trigger_vn
error = autofs_trigger_vn(dvp, cnp->cn_nameptr, cnp->cn_namelen,
static int autofs_trigger_vn(struct vnode *vp, const char *path,
error = autofs_trigger_vn(vp, "", 0, &newvp);
int error = autofs_trigger_vn(vp, "", 0, &newvp);