Re: [nf-next 0/2] netfilter: nf_tables: make set flush more resistant to memory pressure

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Hi,

On Mon, 28 Jul 2025, Florian Westphal wrote:

Another option might be to replace a flush with delset+newset
internally, but this will get tricky because the set/map still being
referenced by other rules, we'd have to fixup the ruleset internally to
use the new/empty set while still being able to roll back.

If "data" of struct nft_set would be a pointer to an allocated memory area, then there'd be no need to fixup the references in the rules: it would be enough to create-delete the data part. (All non-static, set data related attributes could be move to the "data" as well, like nelems, ndeact.) But it'd mean a serious redesign.

Best regards,
Jozsef





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