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Date: Fri, 4 Sep 2026 21:29:34 +0200
From: Florian Westphal <fw@strlen.de>
To: netfilter-devel@vger.kernel.org
Cc: Jozsef Kadlecsik <kadlec@netfilter.org>, herbert@gondor.apana.org.au,
	linux-crypto@vger.kernel.org
Subject: Re: [PATCH nf-next v4 01/13] rhashtable: add
 rhashtable_flush_and_free helper
Message-ID: <apscHra03hEkw7ty@strlen.de>
References: <20260904185321.30313-1-fw@strlen.de>
 <20260904185321.30313-2-fw@strlen.de>
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In-Reply-To: <20260904185321.30313-2-fw@strlen.de>

Florian Westphal <fw@strlen.de> wrote:
> Will be used by upcoming ipset rhashtable conversion.
> 
> "walk rht with unlink+free" triggers LLM reject pattern:
> "possible softirq CPU stall".
> 
> "walk rht with unlink+free + cond_resched" triggers
> "possibly skipped elements".
> 
> Add a helper to detach current hash backend storage from the
> rhashtable, then iterate and flush all contained elements.

As usual, I'm very incompetent and the patch sucks.

So question is merely if this function/idea is desirable/wanted
in the first place.