The rhashtable data structure is a generic resizable hash-table implementation in the Linux kernel, which LWN first introduced as "relativistic hash tables" back in 2014. I thought at the time that it ...

Provides an introduction to and implementation of chained hash tables. Hash tables are data structures that are used when you are managing a large amount of data and need to be able find an item ...

A data structure implementation that is more or less replicated in 50 or more places in the kernel seems like some nice low-hanging fruit to pick. That is just what Sasha Levin is trying to do with ...