VFS_ROOT
if ((error = VFS_ROOT(mp, LK_EXCLUSIVE, &rvp)) != 0)
error = VFS_ROOT(vp->v_mountedhere, LK_EXCLUSIVE, newvp);
r = VFS_ROOT(new_mp,
error = VFS_ROOT(mp, LK_EXCLUSIVE, &tdvp);
error = VFS_ROOT(mp, LK_NONE, &vp);
error = VFS_ROOT(mp, LK_NONE, &rootvnode);
if (VFS_ROOT(olddp->v_mountedhere, LK_EXCLUSIVE, &newdp))
error = VFS_ROOT(mp, LK_SHARED, &tdp);
if ((error = VFS_ROOT(mp, LK_EXCLUSIVE, &rvp)))
rv = VFS_ROOT(mp, LK_EXCLUSIVE, vpp);
int VFS_ROOT(struct mount *, int, struct vnode **);
if ((error = VFS_ROOT(mp, LK_EXCLUSIVE, &rvp)) != 0)
error = VFS_ROOT(mp, LK_EXCLUSIVE, &rvp);
error = VFS_ROOT(mp, LK_EXCLUSIVE, &rvp);