[PATCH bpf-next 3/4] bpf: Introduce path iterator

[Al Viro]

On Thu, May 29, 2025 at 09:53:21AM -0700, Song Liu wrote:

> Current version of path iterator only supports walking towards the root,
> with helper path_parent. But the path iterator API can be extended
> to cover other use cases.

Clarify the last part, please - call me paranoid, but that sounds like
a beginning of something that really should be discussed upfront.