Hi, I'm wondering if there's a reason that we do a linear search for the mapping translations between kuid_t and uid_t. Surely something like a radix trie would (potentially) allow for better storage and lookup? Is the whole "an extent fits in a cache line" a good enough optimisation that it would be pointless to use a better structure? Also, is there a good reason why we have UID_GID_MAP_MAX_EXTENTS = 5 (other than the one cache line thing)? Surely it's not more efficient to have to create a bunch of nested namespaces in order to have more than 5 extents?
-- Aleksa Sarai (cyphar) www.cyphar.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
