fuse_vnode_hash
error = vfs_hash_get(mp, fuse_vnode_hash(nodeid), flags, td, vpp,
err = vfs_hash_get(mp, fuse_vnode_hash(nodeid), LK_EXCLUSIVE, td, vpp,
err = vfs_hash_insert(*vpp, fuse_vnode_hash(nodeid), LK_EXCLUSIVE,