procfs_allocvp
int procfs_allocvp(struct mount *, struct vnode **, pid_t, pfstype, int);
error = procfs_allocvp(mp, vpp, 0, PFSroot, -1);
error = procfs_allocvp(dvp->v_mount, vpp, 0,
error = procfs_allocvp(dvp->v_mount, vpp, vnpid, type, -1);
error = procfs_allocvp(dvp->v_mount, vpp, 0, PFSroot,
error = procfs_allocvp(dvp->v_mount, vpp, pfs->pfs_pid,
error = procfs_allocvp(dvp->v_mount, vpp, pfs->pfs_pid,
error = procfs_allocvp(dvp->v_mount, vpp, pfs->pfs_pid,
error = procfs_allocvp(dvp->v_mount, vpp, pfs->pfs_pid,
error = procfs_allocvp(dvp->v_mount, vpp, pfs->pfs_pid,
error = procfs_allocvp(dvp->v_mount, vpp, 0, parent,
error = procfs_allocvp(dvp->v_mount, vpp, 0,