Re: nfnetlink_queue -- why linear lookup ?

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On 8/16/21 12:56 PM, Florian Westphal wrote:
alexandre.ferrieux@xxxxxxxxxx <alexandre.ferrieux@xxxxxxxxxx> wrote:
Well, the problem is backwards compatibility. Indeed I'd propose more
flexible batching via an array of ids instead of a maxid. But the main added
value of this flexibility is to enable reused-small-integers ids, like file
descriptors. As long as the maxid API remains in place, this is impossible.

You cannot remove the maxid API.

Ok, I'll just propose an id-hashtable patch.
I'm thinking of using "modulo queue_maxlen" instead of a traditional hash function (and queue_maxlen as table size) , as this would yield perfect hashing for the FIFO case.


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