OPEN_TREE_CLONE 2364 fs/namespace.c bool detached = flags & OPEN_TREE_CLONE; OPEN_TREE_CLONE 2371 fs/namespace.c AT_SYMLINK_NOFOLLOW | OPEN_TREE_CLONE | OPEN_TREE_CLONE 2375 fs/namespace.c if ((flags & (AT_RECURSIVE | OPEN_TREE_CLONE)) == AT_RECURSIVE)