On Tue, Sep 28, 2021 at 05:14:55PM -0700, Andrii Nakryiko wrote: > > So for Bloom filter you get performance advantage from a dedicated map > (due to having just 1 helper call to do N hashing operations). For > pure bitset, there seems to be little benefit at all because it is > basically ARRAY. I brought up bitset only as an idea to make bloomfilter map a bit more generic and was looking for feedback whether to call the new map "bitset that allows bloomfilter operations" or call it "bloomfilter that simplifies to bitset" with nr_hashes=0. It sounds that using bloomfilter as a base name fits better. > I haven't found SPDX header or any mention of GPL in > include/linux/jhash.h, so I assumed someone can just copy paste the > code (given the references to public domain). Seems like that's not > the case? Just curious about implications, license-wise, if there is > no SPDX? Is it still considered GPL? I believe so. Every project that copy pasted jhash from the kernel add SPDX gpl-2 to its source.
