tmpfs_dir_lookup
struct tmpfs_dirent * tmpfs_dir_lookup(struct tmpfs_node *node,
de = tmpfs_dir_lookup(dnode, node, ncp);
de = tmpfs_dir_lookup(dnode, NULL, ncp);
de = tmpfs_dir_lookup(fdnode, fnode, fncp);
KKASSERT(de == tmpfs_dir_lookup(fdnode, fnode, fncp));
tde = tmpfs_dir_lookup(tdnode, tnode, tncp);
de = tmpfs_dir_lookup(dnode, node, ncp);