vop_mountctl
.vop_mountctl = vop_stdmountctl
.vop_mountctl = journal_mountctl,
error = vop_mountctl(mp->mnt_vn_use_ops, vp, op, fp, ctl, ctllen,
DO_OPS(ops, error, &ap, vop_mountctl);
DO_OPS(ap->a_head.a_ops, error, ap, vop_mountctl);
int (*vop_mountctl)(struct vop_mountctl_args *);
int vop_mountctl(struct vop_ops *ops, struct vnode *vp, int op,
.vop_mountctl = autofs_mountctl,
.vop_mountctl = dirfs_mountctl,
.vop_mountctl = fuse_vop_mountctl,
.vop_mountctl = hammer_vop_mountctl,
.vop_mountctl = hammer2_vop_mountctl,
.vop_mountctl = null_mountctl
.vop_mountctl = tmpfs_mountctl,
int (*vop_mountctl)(struct vop_mountctl_args *);
.vop_mountctl = hammer2_vop_mountctl,