Re: [PATCH bpf-next v3 02/10] rhashtable: Add rhashtable_walk_enter_from()

[Herbert Xu <herbert@gondor.apana.org.au>]

On Tue, May 05, 2026 at 05:57:41PM +0100, Mykyta Yatsenko wrote:
>
> We brainstormed with Alexei on how to integrate rhashtable better,
> as a BPF map, we have the next proposal:
> 
> Introduce rhashtable_next_key() API
> ```
> static inline struct rhash_head *rhashtable_next_key(
> 	struct rhashtable *ht, const void *prev_key,
> 	const struct rhashtable_params params);
> ```
> 
> It returns the next element, by finding prev_key in the tbl chain
> and returning the next element in whatever tbl the prev one is.
> This way we keep rhashtable API tight, less surface, not exposing unnecessary
> details, although, this new API will have the same issues with full
> iteration support (which we fine to deal with on userspace side).
> Appreciate if you share your opinion on this.

Can you please show me how this gets used? Basically send me the
patch 03 from your v3 series with this new interface.

Thanks,
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt